CN110239606A

CN110239606A - The self-actuating brake wheel carrier and wheel assembly of pulling force control

Info

Publication number: CN110239606A
Application number: CN201910367414.0A
Authority: CN
Inventors: 周巍
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-11
Filing date: 2019-05-06
Publication date: 2019-09-17
Anticipated expiration: 2039-05-06
Also published as: CN110239606B; CN210139890U

Abstract

The present invention relates to self-actuating brake wheel carriers and wheel assembly that wheel carrier technical field more particularly to a kind of pulling force control.The wheel assembly includes the self-actuating brake wheel carrier of wheel and pulling force control.The self-actuating brake wheel carrier includes the second wheel carrier pulling force carrier, repulsion component, main frame and rotary wheel frame；One end of second wheel carrier pulling force carrier is connected with clamp, and clamp is connect with repulsion component；Rotary wheel frame is provided at least one wheel carrier limiting slot along the circumferential direction of itself；Clamp can be clamped with wheel carrier limiting slot；Repulsion component has the movement tendency for enabling clamp be connected to wheel carrier limiting slot；Rotary wheel frame is rotatably connected with main frame, and clamp and the second wheel carrier pulling force carrier are located in main frame；The second wheel carrier pulling force carrier is pulled, so that clamp is far from wheel carrier limiting slot.The wheel assembly includes the self-actuating brake wheel carrier of wheel and pulling force control.Realize the purpose that security performance is improved by using mechanical mode self-actuating brake.

Description

The self-actuating brake wheel carrier and wheel assembly of pulling force control

Technical field

The present invention relates to self-actuating brake wheel carriers and wheel assembly that wheel carrier technical field more particularly to a kind of pulling force control.

Background technique

Currently, the brake of wheel assembly wheel, by pulling brake block, is allowed by the way of footbrake or hand-operated brake Wheel assembly wheel is in stuck braking state.Its problem of, is: it needs to carry out braking mechanism operation and is just able to achieve brake, It is unable to self-actuating brake, so that being easy because forgetting to brake and lead to that accident occurs.

Another brake of wheel assembly wheel is utilized using electronic self-stopping modes such as thermal sensation or infrared inductions Thermal sensation or infrared induction control brake in cart handle.Its problem of, is: must sense trammer thermal sensation or Infrared induction, whether just can control wheel assembly brake.It, cannot automatic brake when the dead battery capability that wheel assembly carries Vehicle；There are security risk and inconvenient uses.

Therefore, the application provide regarding to the issue above a kind of new pulling force control self-actuating brake wheel carrier and wheel assembly and Automatically wheel carrier is set, the self-actuating brake in a manner of by using machinery, to improve security performance.

Summary of the invention

The purpose of the present invention is to provide the self-actuating brake wheel carrier of pulling force control and wheel assembly and automatically wheel carrier is set, led to It crosses and uses mechanical mode self-actuating brake to improve security performance.

Based on above-mentioned purpose, the self-actuating brake wheel carrier of pulling force control provided by the invention, including tension bearing, the second wheel carrier Pulling force carrier, repulsion component, main frame and rotary wheel frame；

One end of the second wheel carrier pulling force carrier is connect with the tension bearing, and the other end is connected with clamp；

The rotary wheel frame is provided at least one wheel carrier limiting slot along the circumferential direction of itself；The clamp can be with the wheel carrier Limiting slot clamping；

The repulsion component is oppositely arranged with the second wheel carrier pulling force carrier, and the repulsion component have enable the card Head is connected to the movement tendency of the wheel carrier limiting slot；

The rotary wheel frame is rotatably connected with the main frame, and the repulsion component and the clamp are arranged in the main body The main frame is arranged in either internally or externally in the inside of frame, the tension bearing；

Pull the tension bearing so that the second wheel carrier pulling force carrier is mobile with the tension bearing, then so that The clamp is far from the wheel carrier limiting slot.

Optionally, the self-actuating brake wheel carrier of pulling force control includes the first wheel carrier pulling force carrier；

The first wheel carrier pulling force carrier is connect with the second wheel carrier pulling force carrier by the tension bearing；

The first wheel carrier pulling force carrier is pulled, so that the second wheel carrier pulling force carrier is mobile with the tension bearing, Then so that the clamp is far from the wheel carrier limiting slot.

Optionally, the repulsion component includes the first magnet and the second magnet of mutual exclusion；First magnet is far from described One end of second magnet is abutted with the main frame, and the one end of second magnet far from first magnet is supported with the clamp It connects；Repulsion between first magnet and second magnet has the fortune for enabling the clamp be connected to the wheel carrier limiting slot Dynamic trend；

Alternatively, the repulsion component includes the spring being socketed on the second wheel carrier pulling force carrier；The one of the spring End is abutted with the main frame, and the other end is abutted with the clamp；The spring, which has, enables the clamp be connected to the wheel carrier The movement tendency of limiting slot.

Optionally, it when the inside of the main frame is arranged in the tension bearing, is covered on the first wheel carrier pulling force carrier It is connected to the repulsion component；The repulsion component has the trend for enabling the tension bearing move towards the rotary wheel frame.

Optionally, it is articulated with inside the main frame for changing the rotation of the second wheel carrier pulling force carrier extending direction Supporting element；The rotatable support is provided with the rotational support slot with the second wheel carrier pulling force carrier combination；

The repulsion component is arranged between the rotatable support and the clamp.

Optionally, the self-actuating brake wheel carrier of pulling force control includes fixed frame；The main frame is rotatably socketed On the fixed frame；

The inside of the fixed frame is arranged in the tension bearing, and one end of the second wheel carrier pulling force carrier is protruded into described Fixed frame is connect with the tension bearing.

Optionally, along the axial direction of the fixed frame, the fixed frame includes corresponding top and bottom；

The bottom of the fixed frame connects the main frame by hollow screw；The hollow screw has axial along itself The hollow screw through-hole of extension, the second wheel carrier pulling force carrier passes through the hollow screw through-hole and the tension bearing connects It connects；

The bottom that the nut or the fixed frame that are spirally connected with the hollow screw are provided in the fixed frame is provided with The threaded hole being spirally connected with the hollow screw.

Optionally, plain thrust bearing is provided between the nut of the hollow screw and the main frame, and/or, institute It states and is provided with plain thrust bearing between the bottom of fixed frame and the main frame；

Optionally, bearing is provided between the top of the fixed frame and the main frame.

Optionally, along the axial direction of the fixed frame, the fixed frame includes corresponding top and bottom；The fixed frame Top and the main frame top cooperate；

The universal rotational that is externally connected to of the main frame adjusts action piece；The main frame has described in grafting universal turn The dynamic universal rotation stop hole of main frame for adjusting action piece；The top of the fixed frame has can be with the universal rotation stop hole of the main frame The corresponding universal rotation stop hole of fixed frame；

Along the axial direction of the fixed frame, the universal rotational adjusts action piece and can move back and forth, so that described universal turn It is dynamic to adjust action piece insertion or far from the universal rotation stop hole of the fixed frame.

Optionally, the outside of the main frame is fixedly installed the fixed top of universal rotational and the fixed lower part of universal rotational； Along the axial direction of the fixed frame, the top of the main frame is arranged in for the fixed top of the universal rotational and the universal rotational is consolidated It fixs between portion；

The universal rotational adjusts action piece and is fixedly installed universal action piece magnetic part；Along the axial direction of the fixed frame, The fixed top of the universal rotational, the universal action piece magnetic part and the fixed lower part of the universal rotational are set gradually；It is described The inside that universal rotational fixes the fixed lower part of top, the universal action piece magnetic part and the universal rotational is provided with magnetic Iron, and two adjacent magnet attract each other；

It is under the action of magnetic attraction so that described universal when the universal rotational adjusting action piece is moved along the main frame Action piece magnetic part is connect with the fixed top of the universal rotational, and is enabled the universal rotational adjust action piece and be inserted into the fixation The universal rotation stop hole of frame, alternatively, so that the universal action piece magnetic part is fixed with the universal rotational under the action of magnetic attraction Lower part connection, and the universal rotational is enabled to adjust action piece far from the universal rotation stop hole of the fixed frame.

Optionally, the tension bearing is for connecting the first pulling force carrier and the second pulling force carrier；

The first pulling force carrier is the first wheel carrier pulling force carrier, and the second pulling force carrier is second wheel carrier Pulling force carrier；Alternatively, the first pulling force carrier is the second wheel carrier pulling force carrier, the second pulling force carrier is described the One wheel carrier pulling force carrier；

The tension bearing includes shell and radial torque barrier assembly；

One end of the first pulling force carrier is provided with the first pulling force spacing head；

The first end of the shell connects the first pulling force carrier, the second end corresponding with first end of the shell Connect the second pulling force carrier；

The radial direction torque barrier assembly includes the first turntable；

The enclosure interior is provided with shell internal cavity；The first end of the shell, which is provided with, to be connected to the shell internal cavity First shell body opening；The first pulling force spacing head and first turntable are arranged in the shell internal cavity, and described first turn Disk covers on the first pulling force carrier；The first pulling force spacing head can abut the shell using first turntable；

The first pulling force carrier passes through the first shell body opening far from one end of the first pulling force spacing head and stretches out The shell；

First turntable is provided with the multiple rotors abutted with the shell.

Optionally, the first dottle pin is provided between the first pulling force spacing head and first turntable；

The the first dottle pin slot of first dottle pin being provided on one side in a ring；

Multiple rotors of first turntable and the first dottle pin slot are cooperatively connected, and first turntable is multiple Rotor can be rotated around the axis of first turntable in the first dottle pin slot.

Optionally, first turntable is plain thrust bearing；

The plain thrust bearing includes retainer and multiple rotors；Multiple rotors abut the shell by retainer Body.

Optionally, the second end of the shell is provided with the second shell body opening being connected to the shell internal cavity；

One end of the second pulling force carrier is provided with the second pulling force spacing head in the shell internal cavity；Described The other end of two pulling force carriers passes through the second shell body opening and stretches out the shell；The second pulling force spacing head can abut The shell.

Optionally, the shell is provided with the first opening and the second opening being connected to the shell internal cavity；Described first Opening and second opening are located between the first end and second end of the shell；

The diameter of first turntable and the diameter of the first pulling force spacing head are respectively less than the bore of first opening；

The diameter of the second pulling force spacing head is less than the bore of second opening.

Optionally, the shell includes first shell portion and second shell portion；

The first shell portion is fixedly connected with the second shell portion, and the first shell portion and the second shell Portion forms the shell internal cavity；

The one end of the first shell portion far from the second shell portion is the first end of the shell；

The one end of the second shell portion far from the first shell portion is the second end of the shell.

Optionally, the second pulling force carrier is fixedly connected with the second end of the shell；

And/or shown first pulling force spacing head is provided with spacing head groove in a ring；Multiple turns of first turntable Kinetoplast and the spacing head groove are cooperatively connected, and multiple rotors of first turntable can be around the axis of first turntable Line is rotated in the spacing head groove.

Based on above-mentioned purpose, wheel assembly provided by the invention, the self-actuating brake including wheel and the pulling force control Wheel carrier；

The wheel is connect with the rotary wheel frame for the self-actuating brake wheel carrier that the pulling force controls, and the rotary wheel frame and the vehicle Wheel rotates synchronously.

Based on above-mentioned purpose, the self-actuating brake wheel carrier of the pulling force control of another structure provided by the invention, including the Two wheel carrier pulling force carriers, repulsion component, main frame and rotary wheel frame；

One end of the second wheel carrier pulling force carrier is connected with clamp, and the clamp is connect with the repulsion component；

The rotary wheel frame is rotatably connected with the main frame, and the repulsion component and the clamp are arranged in the main body The inside of frame；

The second wheel carrier pulling force carrier is pulled, so that the clamp is far from the wheel carrier limiting slot.

Optionally, the slideway slided for the clamp along the second wheel carrier pulling force carrier is offered on the main frame, And the clamp is greater than the groove depth of the wheel carrier limiting slot along the length of the slideway extending direction.

Optionally, first through hole and blind hole are offered on the main frame, the slideway is located at the blind hole and described the Between one through-hole；The second through-hole passed through for the second wheel carrier pulling force carrier is offered between the blind hole and the slideway.

Alternatively, the repulsion component includes the spring being socketed on the second wheel carrier pulling force carrier；The one of the spring End is abutted with the main frame, and the other end is abutted with the clamp；The spring, which has, enables the clamp be connected to the wheel carrier The movement tendency of limiting slot；

Alternatively, the repulsion component includes the third magnet being arranged on the rotary wheel frame and is arranged on the clamp 4th magnet, and the third magnet and the 4th magnet have trend close to each other.

Optionally, second magnet is integrated with the clamp；

Or, the 4th magnet is integrated with the clamp.

The utility model has the advantages that

The self-actuating brake wheel carrier and wheel assembly of pulling force control provided by the invention, have by repulsion component and enable clamp card The movement tendency in wheel carrier limiting slot is connect, with when not operating tension bearing, rotary wheel frame is in stuck state, and then makes and turns The wheel that wheel carrier rotates synchronously is in stuck state namely wheel and is in self-actuating brake state；When pulling tension bearing, the Two wheel carrier pulling force carriers are mobile with tension bearing, then overcome the power of repulsion component so that clamp is moved with the second wheel carrier pulling force carrier Dynamic and separate wheel carrier limiting slot, so that rotary wheel frame is in the state that is freely rotated namely wheel is in and state is freely rotated.It pulls Power bearing can be pulled by other pulling force carriers, can reduce or substantially eliminate other pulling force carriers and second by tension bearing The radial torque of wheel carrier pulling force carrier reduces clamp moving resistance, convenient for clamp clamping or far from wheel carrier limiting slot.The pulling force The self-actuating brake wheel carrier of control mechanically realizes the self-actuating brake under unstressed state, energy in the state of by pulling force It is enough freely rotated, improves the security performances such as perambulator, the shopping cart of wheel of self-actuating brake wheel carrier with pulling force control.

The self-actuating brake wheel carrier of another kind pulling force control provided by the invention leads in the case where being not provided with tension bearing Crossing repulsion component enables clamp have the movement tendency for being connected to wheel carrier limiting slot, when user does not operate the second wheel carrier pulling force carrier When, clamp enters in wheel carrier limiting slot in the driving next part of repulsion component, and rotary wheel frame and main frame keep opposite at this time Static, i.e., rotary wheel frame is in stuck state, and then the wheel rotated synchronously with rotary wheel frame is made to be in stuck state, Ye Jiche Wheel is in self-actuating brake state；When user pull the second wheel carrier pulling force carrier when, that is, overcome the power of repulsion component so that clamp with Second wheel carrier pulling force carrier is mobile and far from wheel carrier limiting slot, until clamp is detached from wheel carrier limiting slot, rotary wheel frame at this time It can be rotated relative to main frame, i.e., rotary wheel frame is in the state that is freely rotated namely wheel is in and state is freely rotated.The drawing The self-actuating brake wheel carrier of power control mechanically realizes the self-actuating brake under unstressed state, in the state of by pulling force It can be freely rotated, improve the security performances such as perambulator, the shopping cart of wheel of self-actuating brake wheel carrier with pulling force control.

Detailed description of the invention

It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor It puts, is also possible to obtain other drawings based on these drawings.

Fig. 1-1 to Fig. 1-9 is nine kinds of the self-actuating brake wheel carrier that pulling force provided in an embodiment of the present invention controls and wheel Structure sectional view；The first for the self-actuating brake wheel carrier and wheel that Fig. 1-10 controls for pulling force provided in an embodiment of the present invention is vertical Body figure；

Fig. 1-11 and Fig. 1-12 is the self-actuating brake wheel carrier of the control of pulling force shown in Fig. 1-10 and the two states of wheel Stereochemical structure cross-sectional view；

Fig. 1-13 is the self-actuating brake wheel carrier of the control of pulling force shown in Fig. 1-10 and the explosive view of wheel；Fig. 1-14 is The self-actuating brake wheel carrier of pulling force control provided in an embodiment of the present invention and second of perspective view of wheel；

Fig. 1-15 is the self-actuating brake wheel carrier of the control of pulling force shown in Fig. 1-14 and the explosive view of wheel；

Fig. 1-16 is one kind of main frame in the self-actuating brake wheel carrier and wheel of pulling force provided in an embodiment of the present invention control The cross-sectional view of embodiment；

Fig. 2-1 is the first visual angle package assembly signal of the first structure of tension bearing provided in an embodiment of the present invention Figure；

Fig. 2-2 is the package assembly cross-sectional view of tension bearing shown in Fig. 2-1；

Fig. 2-3 is the second visual angle package assembly signal of the first structure of tension bearing provided in an embodiment of the present invention Figure；

Fig. 2-4 is the package assembly cross-sectional view of tension bearing shown in Fig. 2-3；

Fig. 2-5 is the cross-sectional view of the first structure of tension bearing provided in an embodiment of the present invention；

Fig. 2-6 is another structural schematic diagram of tension bearing provided in an embodiment of the present invention；

Fig. 3-1 is the first visual angle package assembly signal of second of structure of tension bearing provided in an embodiment of the present invention Figure；

Fig. 3-2 is the second visual angle package assembly signal of second of structure of tension bearing provided in an embodiment of the present invention Figure；

Fig. 3-3 is the cross-sectional view of second of structure of tension bearing provided in an embodiment of the present invention；

Fig. 4 is autobalance schematic diagram of the tension bearing provided in an embodiment of the present invention when bearing pulling force；

Fig. 5-1 is the first structural schematic diagram of the first turntable of tension bearing provided in an embodiment of the present invention；

Fig. 5-2 is second of structural schematic diagram of the first turntable of tension bearing provided in an embodiment of the present invention；

Fig. 6-1 is the first structural schematic diagram of the first dottle pin of tension bearing provided in an embodiment of the present invention；

Fig. 6-2 is the structure sectional view of the first dottle pin shown in Fig. 6-1；

Fig. 6-3 is second of structural schematic diagram of the first dottle pin of tension bearing provided in an embodiment of the present invention；

Fig. 6-4 is the structure sectional view of the first dottle pin shown in Fig. 6-3；

Fig. 7-1 is the assembly structure diagram of the third structure of tension bearing provided in an embodiment of the present invention；

Fig. 7-2 is the package assembly cross-sectional view of the third structure of tension bearing provided in an embodiment of the present invention；

Fig. 7-3 is the cross-sectional view of the third structure of tension bearing provided in an embodiment of the present invention；

Fig. 8-1 is the structure chart that main frame provided in an embodiment of the present invention and universal rotational adjust action piece；

Fig. 8-2 is the explosive view that main frame shown in Fig. 8-1 and universal rotational adjust action piece；

Fig. 8-3 and Fig. 8-4 is that fixed frame provided in an embodiment of the present invention, main frame and universal rotational adjust action piece Two states schematic diagram；

Fig. 8-5 is structure of the self-actuating brake wheel carrier of pulling force provided in an embodiment of the present invention control about rotatable support Schematic diagram；

Fig. 9-1 is the structural schematic diagram of fixed frame provided in an embodiment of the present invention and main frame；

Fig. 9-2 is the explosive view of fixed frame and main frame shown in Fig. 9-1；

Figure 10-1 and Figure 10-2 is the first group of the self-actuating brake wheel carrier of pulling force provided in an embodiment of the present invention control Dress figure；

Figure 10-3 is second of assembling figure of the self-actuating brake wheel carrier of pulling force provided in an embodiment of the present invention control；

Figure 10-4 and Figure 10-5 is the two states of the self-actuating brake wheel carrier of pulling force provided in an embodiment of the present invention control Figure；

Figure 11-1 and Figure 11-2 is the two states schematic diagram in pulling force source provided in an embodiment of the present invention.

Icon:

100- tension bearing；110- the first pulling force carrier；111- the first pulling force spacing head；112- spacing head groove； 120- the second pulling force carrier；121- the second pulling force spacing head；130- shell；131- first shell body opening；132- second shell Hole；133- first is open；134- second is open；135- first shell portion；136- second shell portion；The first turntable of 140-； 141- needle roller；142- ball；The first dottle pin of 150-；151- the first dottle pin slot；

210- repulsion component；The first magnet of 211-；The second magnet of 212-；213- spring；214- third magnet； The 4th magnet of 215-；220- main frame；221- bearing；222- rotational support chamber cover board；On 223- universal rotational is fixed Portion；224- universal rotational fixes lower part；225- first through hole；The second through-hole of 226-；227- blind hole；228- slideway； 230- rotary wheel frame；231- wheel carrier limiting slot；240- clamp；250- rotatable support；260- fixed frame；The hollow spiral shell of 261- Nail；262- plain thrust bearing；270- universal rotational adjusts action piece；The universal action piece magnetic part of 271-；

300- wheel；400- vehicle frame；410- handle reseting elastic element；420- handle；510- the first wheel carrier pulling force Carrier；520- the second wheel carrier pulling force carrier.

Specific embodiment

Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical", The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ", " third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition Concrete meaning in invention.

It should be pointed out that the purpose of repulsion component is to play clutch action, clamp 240 and wheel are changed by repulsion component The relationship whether being clamped between frame limiting slot 231, and repulsion component uses repulsive force not only to control clamp 240 and wheel carrier Clamping relationship between limiting slot 231 can also control the card between clamp 240 and wheel carrier limiting slot 231 using attraction Connect relationship.

Embodiment one

Referring to the self-actuating brake wheel carrier for shown in Fig. 1-1 to Figure 10-5, present embodiments providing a kind of pulling force control.

Wherein, Fig. 1-1 to Fig. 1-6 is six kinds of self-actuating brake wheel carrier and wheel that pulling force provided in this embodiment controls Structural schematic diagram, wherein Fig. 1-1, Fig. 1-3, Fig. 1-4 to Fig. 1-6 are the brake shape of the self-actuating brake wheel carrier of pulling force control State figure, Fig. 1-2 are that the self-actuating brake wheel carrier normally travel state diagram of pulling force control namely the first wheel carrier pulling force carrier are drawn Power；Fig. 1-1 and Fig. 1-2 shows two groups of repulsion components, and Fig. 1-3 to Fig. 1-6 shows one group of repulsion component；Fig. 1-1 to Repulsion component shown in Fig. 1-3, Fig. 1-5 and Fig. 1-6 is magnet, the repulsion component position spring shown in Fig. 1-4；Fig. 1-1 to Tension bearing shown in Fig. 1-5 is located inside main frame, and the tension bearing shown in Fig. 1-6 is located at outside main frame.Fig. 1-7 For the self-actuating brake wheel carrier of pulling force provided in this embodiment control and the perspective view of wheel, Fig. 1-8 is the automatic brake of pulling force control The braking state figure of wheel carrier, Fig. 1-9 are the self-actuating brake wheel carrier normally travel state diagram of pulling force control, and Fig. 1-10 is figure The self-actuating brake wheel carrier of the control of pulling force shown in 1-7 and the explosive view of wheel；Arrow shown in Fig. 1-8 is the repulsion of repulsion component Direction, Fig. 1-9 are vehicle wheel rotation direction.

Fig. 2-1 to Fig. 2-5, Fig. 3-1 are tension bearing provided in this embodiment to Fig. 3-3 and Fig. 7-1 to Fig. 7-3 Three kinds of structural schematic diagrams；In order to more clearly show that structure, Fig. 2-1 and Fig. 2-3 are thrust axis provided in this embodiment Two visual angle assembly structure diagrams of the first structure held, Fig. 2-2 are the package assembly of tension bearing shown in Fig. 2-1 Cross-sectional view, Fig. 2-4 are the package assembly cross-sectional view of tension bearing shown in Fig. 2-3, and Fig. 2-5 is drawing provided in this embodiment The cross-sectional view of the first structure of power bearing；Fig. 3-1 and Fig. 3-2 is second of structure of tension bearing provided in this embodiment Two visual angle assembly structure diagrams, Fig. 3-3 be tension bearing provided in this embodiment second of structure cross-sectional view； Fig. 7-1 is the assembly structure diagram of the third structure of tension bearing provided in this embodiment, and Fig. 7-2 is the drawing of Fig. 7-1 The package assembly cross-sectional view of power bearing, Fig. 7-3 are the cross-sectional view of the tension bearing of Fig. 7-1；Wherein, Fig. 2-1 to Fig. 2-4, Arrow direction shown in Fig. 3-1, Fig. 3-2, Fig. 7-1 and Fig. 7-2 is the first pulling force carrier or the second pulling force carrier assembling side To.Fig. 4 is autobalance schematic diagram of the tension bearing provided in this embodiment when bearing pulling force, and arrow direction is first in figure The direction of pull that pulling force carrier or the second pulling force carrier are subject to.Fig. 5-1 and Fig. 5-2 is tension bearing provided in this embodiment Two kinds of structural schematic diagrams of the first turntable；Fig. 6-1 and Fig. 6-3 is the two of the first dottle pin of tension bearing provided in this embodiment Kind structural schematic diagram, wherein Fig. 6-2 is the structure sectional view of the first dottle pin shown in Fig. 6-1, and Fig. 6-4 is shown in Fig. 6-3 The first dottle pin structure sectional view.Fig. 2-6 is the structural representation of the Split type casing of tension bearing provided in this embodiment Figure.

Fig. 8-1 is the structure chart that main frame provided in this embodiment and universal rotational adjust action piece, and Fig. 8-2 is figure Main frame shown in 8-1 and universal rotational adjust the explosive view of action piece；Fig. 8-3 show universal rotational and adjusts action piece not Locked and fixed frame and main frame, so that the self-actuating brake wheel carrier of pulling force control is universal wheel wheel carrier；Fig. 8-4 show universal turn It is dynamic to adjust action piece locked and fixed frame and main frame, so that the self-actuating brake wheel carrier of pulling force control is directional wheel wheel carrier；Fig. 8-5 For structural schematic diagram of the self-actuating brake wheel carrier about rotatable support of pulling force provided in this embodiment control；Fig. 9-1 is this reality The fixed frame of example offer and the structural schematic diagram of main frame are provided；Fig. 9-2 is the explosion of fixed frame and main frame shown in Fig. 9-1 Figure；Figure 10-1 and Figure 10-2 is the first assembling figure of the self-actuating brake wheel carrier of pulling force provided in this embodiment control；Figure 10-3 is second of assembling figure of the self-actuating brake wheel carrier of pulling force provided in this embodiment control, and Figure 10-4 and Figure 10-5 are The two states figure of the self-actuating brake wheel carrier of pulling force control provided in this embodiment.

Referring to shown in Fig. 1-1 to Figure 10-5, the self-actuating brake wheel carrier of pulling force control provided in this embodiment is suitable for tool There are supermarket shopping car, the perambulator etc. of wheel.

The self-actuating brake wheel carrier of pulling force control includes tension bearing 100, the second wheel carrier pulling force carrier 520, repulsion component 210, main frame 220 and the rotary wheel frame 230 for being rotated synchronously with wheel 300；Optionally, the self-acting braking wheel of pulling force control Frame includes the first wheel carrier pulling force carrier 510.

One end of second wheel carrier pulling force carrier 520 is connect with tension bearing 100, and the other end is connected with clamp 240.It is optional Ground, the first wheel carrier pulling force carrier 510 are connect with the second wheel carrier pulling force carrier 520 by tension bearing 100；Second wheel carrier pulling force carries Body 520 is connected with clamp 240 far from one end of tension bearing 100.

Rotary wheel frame 230 is provided at least one wheel carrier limiting slot 231 along the circumferential direction of itself；Clamp 240 can be limited with wheel carrier Position slot 231 is clamped；Optionally, the quantity of wheel carrier limiting slot 231 is multiple, for example, 2,3 or 4 etc.；Optionally, more A wheel carrier limiting slot 231 is uniformly arranged along the circumferential direction of rotary wheel frame 230.

Repulsion component 210 is oppositely arranged with the second wheel carrier pulling force carrier 520；And repulsion component 210 have enable clamp 240 block The movement tendency in wheel carrier limiting slot 231 is connect, so that the first wheel carrier pulling force carrier 510 is limited runner in the case where not by external force Frame 230 rotates in main frame 220；Optionally, repulsion component 210 is socketed on the second wheel carrier pulling force carrier 520；Optionally, The inside of the main frame 220 opposite with the second wheel carrier pulling force 520 positions of carrier is arranged in repulsion component 210.

Rotary wheel frame 230 is rotatably connected with main frame 220, and main frame 220 is arranged in repulsion component 210 and clamp 240 Main frame 220 is arranged in either internally or externally in inside, tension bearing 100；

The first wheel carrier pulling force carrier 510 is pulled so that tension bearing 100 is mobile with the first wheel carrier pulling force carrier 510, or Tension bearing 100 is pulled, and then keeps the second wheel carrier pulling force carrier 520 mobile with tension bearing 100, then overcomes repulsion component 210 power is so that clamp 240 realizes rotary wheel frame 230 with the movement of the second wheel carrier pulling force carrier 520 and far from wheel carrier limiting slot 231 It is rotated in main frame 220.

The self-actuating brake wheel carrier of the control of pulling force described in the present embodiment, has by repulsion component 210 and clamp 240 is enabled to be clamped In the movement tendency of wheel carrier limiting slot 231, with when not operating tension bearing 100, rotary wheel frame 230 is in stuck state, into And so that the wheel 300 rotated synchronously with rotary wheel frame 230 is in stuck state namely wheel 300 and be in self-actuating brake state；When When pulling tension bearing 100, the second wheel carrier pulling force carrier 520 is mobile with tension bearing 100, then overcomes repulsion component 210 Power is so that clamp 240 moves with the second wheel carrier pulling force carrier 520 and far from wheel carrier limiting slot 231, so that rotary wheel frame 230 is in certainly It is in by rotary state namely wheel 300 and state is freely rotated.It pulls tension bearing that can pull by other pulling force carriers, leads to The radial torque that tension bearing 100 reduced or substantially eliminated other pulling force carriers and the second wheel carrier pulling force carrier 520 is crossed, is reduced 240 moving resistance of clamp, convenient for the clamping of clamp 240 or far from wheel carrier limiting slot 231.The self-actuating brake wheel carrier of pulling force control It mechanically realizes the self-actuating brake under unstressed state, can be freely rotated, improve in the state of by pulling force With security performances such as perambulator, the shopping carts for rotating synchronously wheel 300 with rotary wheel frame 230.

Referring to shown in Fig. 1-1 to Fig. 1-3, Figure 10-1 and Figure 10-2, in the optinal plan of the present embodiment, repulsion component 210 include the first magnet 211 and the second magnet 212 of mutual exclusion；First magnet 211 one end and main body far from the second magnet 212 Frame 220 abuts, and the second magnet 212 is abutted far from one end of the first magnet 211 with clamp 240；First magnet 211 and the second magnet Repulsion between 212 has the movement tendency for enabling clamp 240 be connected to wheel carrier limiting slot 231.Pass through the first magnet 211 of mutual exclusion With the second magnet 212, to realize that clamp 240 has the movement tendency for being connected to wheel carrier limiting slot 231, and then wheel 300 is realized Self-actuating brake；By pulling the first wheel carrier pulling force carrier 510, the mutual exclusion between the first magnet 211 and the second magnet 212 is overcome Power, to realize that clamp 240 far from wheel carrier limiting slot 231, and then realizes that wheel 300 can be freely rotated.Optionally, the second magnet 212 are fixedly connected with clamp 240；Optionally, clamp 240 is provided with the holding tank for accommodating the second magnet 212, connects in order to fixed Connect the second magnet 212.Optionally, main frame 220 is provided with the holding tank for accommodating the first magnet 211, in order to abut the first magnetic Iron 211.

In the optinal plan of the present embodiment, repulsion component 210 is not limited to above-mentioned magnet assemblies, can also be spring.Example Such as, referring to shown in Fig. 1-4, repulsion component 210 includes the spring 213 being socketed on the second wheel carrier pulling force carrier 520；Spring 213 One end abutted with main frame 220, the other end is abutted with clamp 240；Spring 213, which has, enables clamp 240 be connected to wheel carrier limit The movement tendency of slot 231.By spring 213, to realize that clamp 240 has the movement tendency for being connected to wheel carrier limiting slot 231, into And realize 300 self-actuating brake of wheel；By pulling the first wheel carrier pulling force carrier 510, the elastic force of spring 213 is overcome, to realize Clamp 240 realizes that wheel 300 can be freely rotated far from wheel carrier limiting slot 231.Optionally, spring 213 and clamp 240 It is fixedly connected；Optionally, clamp 240 is provided with the holding tank of accommodating portion spring 213, in order to abut or be fixedly connected bullet Spring 213.Optionally, main frame 220 is provided with the holding tank of accommodating portion spring 213, in order to abut spring 213.

Referring to shown in Fig. 1-1, Fig. 1-2, Figure 10-1 and Figure 10-2, in the optinal plan of the present embodiment, tension bearing 100 when being arranged in the inside of main frame 220, is socketed with repulsion component 210 on the first wheel carrier pulling force carrier 510；Repulsion component 210 With the trend for enabling tension bearing 100 move towards rotary wheel frame 230, and then make the second wheel carrier pulling force carrier 520 that there is direction to turn The trend that wheel carrier 230 moves is facilitated with sharing 210 load of repulsion component being oppositely arranged with the second wheel carrier pulling force carrier 520 Reduce the frictional force between the first wheel carrier pulling force carrier and the spool of the first wheel carrier pulling force carrier.Pass through the first wheel carrier pulling force carrier The repulsion component 210 being socketed on 510 is further convenient for the self-actuating brake wheel carrier of pulling force control automatic brake under unstressed state Vehicle improves the self-stopping stability of self-actuating brake wheel carrier of pulling force control.

Optionally, the repulsion component 210 being socketed on the first wheel carrier pulling force carrier 510 can be above-mentioned magnet assemblies or bullet Spring.

Referring to shown in Fig. 1-7 to Fig. 1-10, Fig. 8-5, in the optinal plan of the present embodiment, it is pivotally connected inside main frame 220 Have for changing the rotatable support 250 of 520 extending direction of the second wheel carrier pulling force carrier；Rotatable support 250 is provided with and the The rotational support slot of two wheel carrier pulling force carriers 520 cooperation；By rotational support slot in order to second wheel of the clamping of rotatable support 250 Frame pulling force carrier 520 to change the extending direction of the second wheel carrier pulling force carrier 520, and then changes the first wheel carrier pulling force carrier 510 Pull the direction of the power of clamp 240.Using the second wheel carrier pulling force carrier 520 pull rotatable support 250, pulling force control from The sliding friction of the second wheel carrier pulling force carrier 520 becomes the rotation of bearing when dynamic brake wheel carrier movement, realizes the accurate of pulling force While control, bracing wire loss is reduced, the self-actuating brake wheel carrier service life of pulling force control is improved.

Optionally, be socketed on the second wheel carrier pulling force carrier 520 repulsion component 210 setting rotatable support 250 with Between clamp 240.

Optionally, referring to shown in Fig. 8-5, rotatable support 250 is pivotally connected by bearing 221 and main frame 220, passes through axis 221 are held to improve the flexibility of the rotation of rotatable support 250, and reduces the frictional force of rotatable support rotation.

Optionally, main frame 220 is provided with rotational support chamber, and the drive-connecting shaft and bearing 221 of rotatable support 250 are arranged In rotational support chamber；Optionally, main frame 220 is provided with the rotational support chamber cover board 222 of buckle closure rotational support chamber, So that rotational support chamber forms closed chamber, prevent dust, worm ant from entering rotational support chamber.

Referring to shown in Fig. 8-1 to Fig. 8-5 and Fig. 9-1 to Fig. 9-2, in the optinal plan of the present embodiment, the drawing The self-actuating brake wheel carrier of power control includes fixed frame 260；Main frame 220 is rotatably socketed on fixed frame 260；

The inside of fixed frame 260 is arranged in tension bearing 100, and fixed frame is protruded into one end of the second wheel carrier pulling force carrier 520 260 connect with tension bearing 100.When fixed frame 260 is fixed on the vehicles such as perambulator, shopping cart, by main frame 220 with Fixed frame 260 is rotatably connected, so that the self-acting braking wheel of pulling force control puts up the wheel carrier for universal wheel.Pulling force controls automatic Wheel carrier brake by fixed frame 260, main frame 220 and tension bearing 100 etc., can be reduced by tension bearing 100 or substantially The radial torque for eliminating the first wheel carrier pulling force carrier 510 and the second wheel carrier pulling force carrier 520, can reduce by 240 moving resistance of clamp, Perhaps far from wheel carrier limiting slot 231 and then reduction or substantially eliminate what universal rotational controlled pulling force convenient for the clamping of clamp 240 The self-actuating brake of self-actuating brake wheel carrier, the influence that state is freely rotated, so that the self-actuating brake of the self-actuating brake wheel carrier of pulling force control Can flexibly it change with the state of being freely rotated.

Referring to shown in Fig. 1-8, Fig. 1-9, Fig. 9-1 to Figure 10-5, in the optinal plan of the present embodiment, along fixed frame 260 axial direction, fixed frame 260 include corresponding top and bottom；

The bottom of fixed frame 260 connects main frame 220 by hollow screw 261；Hollow screw 261 has axial along itself The hollow screw through-hole of extension, the second wheel carrier pulling force carrier 520 pass through hollow screw through-hole and connect with tension bearing 100.

Optionally, it is provided with the nut being spirally connected with hollow screw 261 in fixed frame 260 or the bottom of fixed frame 260 is set It is equipped with the threaded hole being spirally connected with hollow screw 261.

Optionally, plain thrust bearing 262 is provided between the nut of hollow screw 261 and main frame 220, by flat The radial torque between fixed frame 260 and main frame 220 is isolated in face thrust bearing 262；And/or bottom and the master of fixed frame 260 Plain thrust bearing 262 is provided between body frame 220, which primarily serves load-bearing effect.That is, hollow Plain thrust bearing 262 is provided between the nut and main frame 220 of screw 261；Or bottom and the main frame of fixed frame 260 Plain thrust bearing 262 is provided between 220；Or plane is provided between the nut and main frame 220 of hollow screw 261 and is pushed away Plain thrust bearing 262 is provided between the bottom and main frame 220 of power bearing 262 and fixed frame 260.

Optionally, it is provided with bearing between the top of fixed frame 260 and main frame 220, to reduce fixed frame 260 and main body Frictional force of the frame 220 in rotation.

Referring to shown in Fig. 8-1 to Fig. 8-4, in the optinal plan of the present embodiment, along the axial direction of fixed frame 260, fixed frame 260 include corresponding top and bottom；The top of fixed frame 260 and the top of main frame 220 cooperate；

The universal rotational that is externally connected to of main frame 220 adjusts action piece 270；Main frame 220 has grafting universal rotational Adjust the universal rotation stop hole of main frame of action piece 270；The top of fixed frame 260 has can be corresponding with the universal rotation stop hole of main frame The universal rotation stop hole of fixed frame；

Along the axial direction of fixed frame 260, universal rotational adjusts action piece 270 and can move back and forth.Wherein, universal rotational is adjusted It the direction that action piece 270 moves back and forth can be for along the direction of main frame 220, or with 220 direction of main frame in angle Direction.

Optionally, along the axial direction of fixed frame 260, universal rotational adjusts action piece 270 and can back and forth move along main frame 220 It is dynamic, so that universal rotational adjusts the insertion of action piece 270 or far from the universal rotation stop hole of fixed frame.Universal rotational is adjusted into action piece The 270 insertion universal rotation stop holes of fixed frame, so as to cannot be rotatablely connected between fixed frame 260 and main frame 220, so that pulling force controls Self-actuating brake wheel carrier be directional wheel wheel carrier；Universal rotational is adjusted into action piece 270 far from the universal rotation stop hole of fixed frame, so that It can be rotatablely connected between fixed frame 260 and main frame 220, so that the self-actuating brake wheel carrier of pulling force control is the wheel of universal wheel Frame.Arrow shown in Fig. 8-1 is the direction that universal rotational adjusts that action piece 270 moves back and forth.

Optionally, the outside of main frame 220 is fixedly installed the fixed top 223 of universal rotational and the fixed lower part of universal rotational 224；Along the axial direction of fixed frame 260, the top of main frame 220 is arranged in for the fixed top 223 of universal rotational and universal rotational is fixed Between lower part 224；

Universal rotational adjusts action piece 270 and is fixedly installed universal action piece magnetic part 271；Along the axial direction of fixed frame 260, Universal rotational is fixed the fixed lower part 224 of top 223, universal action piece magnetic part 271 and universal rotational and is set gradually；Universal rotational The inside on fixed top 223, universal action piece magnetic part 271 and the fixed lower part 224 of universal rotational is provided with magnet, and adjacent Two magnet attract each other；Namely；In magnet and universal action piece magnetic part 271 inside the fixed top 223 of universal rotational The magnet in portion attracts each other, the magnet inside the fixed lower part 224 of universal rotational and the magnet inside universal action piece magnetic part 271 It attracts each other.

When universal rotational adjusting action piece 270 is moved along main frame 220, so that universal action piece under the action of magnetic attraction Magnetic part 271 is connect with the fixed top 223 of universal rotational, and it is universal only to enable universal rotational adjust the insertion fixed frame of action piece 270 Turn hole, so as to cannot be rotatablely connected between fixed frame 260 and main frame 220, so that the self-actuating brake wheel carrier of pulling force control is fixed To the wheel carrier of wheel；Alternatively, so that universal action piece magnetic part 271 and the fixed lower part 224 of universal rotational under the action of magnetic attraction Connection, and universal rotational is enabled to adjust action piece 270 far from the universal rotation stop hole of fixed frame so that fixed frame 260 and main frame 220 it Between can be rotatablely connected so that pulling force control self-actuating brake wheel carrier be universal wheel wheel carrier.

Tension bearing 100 described in the present embodiment can effectively reduce friction, such as the pulling force between two pulling force carriers is connect While continuing, the radial rotating threshold value between pulling force carrier is reduced using ball or needle roller, pulling force carrier is made only to need very little Radial torque can become the radial rotating state using direction of pull as shaft from stationary state.100 energy of tension bearing Prevent pulling force carrier from kink phenomenon occurs, to avoid pulling force distortion, tension ohject displacement increases, pulling force carrier structure damage Bad the problems such as.

Referring to fig. 2 shown in-1 to Fig. 7-3, tension bearing 100 is carried for connecting the first pulling force carrier 110 and the second pulling force Body 120；

First pulling force carrier 110 is the first wheel carrier pulling force carrier 510, and the second pulling force carrier 12 0 is the second wheel carrier pulling force load Body 520；Alternatively, the first pulling force carrier 110 is the second wheel carrier pulling force carrier 520, the second pulling force carrier 12 0 is the first wheel carrier pulling force Carrier 510；That is, tension bearing 100 is limited without direction when in use.

Referring to fig. 2 shown in-1 to Fig. 7-3, optionally, first pulling force carrier of the connection of tension bearing 100 110 and second is drawn Power carrier 12 0, the tension bearing 100 include shell 130 and radial torque barrier assembly；

The first end of shell 130 for connect the first pulling force carrier 110, corresponding with first end the second of shell 130 End is for connecting the second pulling force carrier 12 0；Optionally, the axis of the axis of the first pulling force carrier 110 and the second pulling force carrier 12 0 It is overlapped；Namely the axis along the first pulling force carrier 110, shell 130 are provided with corresponding first end and second end.

Radial torque barrier assembly includes the first turntable 140；First turntable, 140 housing on the first pulling force carrier 110, That is the first pulling force carrier 110 passes through the first turntable 140.

Shell 130 is internally provided with shell internal cavity；The first end of shell 130 is provided with the first shell being connected to shell internal cavity Body opening 131；

One end of first pulling force carrier 110 is provided with the first pulling force spacing head 111；First pulling force spacing head 111 and first Turntable 140 is arranged in shell internal cavity；First pulling force carrier 110 passes through first shell far from one end of the first pulling force spacing head 111 Body opening 131 simultaneously stretches out the other end of shell 130 namely the first pulling force carrier 110 across first shell body opening 131 and stretches out shell 130；For example, the other end of the first pulling force carrier 110 sequentially passes through the first turntable 140 and first shell body opening 131, and stretch out shell 130；First pulling force spacing head 111 can by, utilize the first turntable 140 abut shell 130；Optionally, the first turntable 140 has Have and wears the first turntable through-hole for connecing the first pulling force carrier 110；Optionally, the axis of the first turntable through-hole and the first turntable 140 Axis is overlapped.Optionally, along the radial direction of the first turntable 140, the diameter of the first pulling force spacing head 111 is greater than the first turntable through-hole Diameter.Optionally, along the radial direction of the first turntable 140, the diameter of the first turntable 140 is greater than the diameter of first shell body opening 131.

First turntable 140 is provided with the multiple rotors abutted with shell 130.

Tension bearing 100 described in the present embodiment connect the first pulling force carrier 110 by the first end of shell 130, the Two ends connect the second pulling force carrier 12 0, and the first pulling force spacing head 111 of the first pulling force carrier 110 and the setting of the first turntable 140 exist In shell internal cavity inside shell 130, and the first turntable 140 is connect with shell 130 by multiple rotors, so that the first pulling force While pulling force between carrier 110 and the second pulling force carrier 12 0 connects, friction is effectively reduced using rotor, is reduced Radial rotating threshold value between first pulling force carrier 110 and the second pulling force carrier 12 0 draws the first pulling force carrier 110 and second Power carrier 12 0 only needs the radial torque of very little that can become the radial rotating shape using direction of pull as shaft from stationary state State can also effectively prevent the first pulling force carrier 110 and the second pulling force carrier 12 0 that kink phenomenon occurs, and then effectively avoid drawing The problems such as power distortion, tension ohject displacement increase, pulling force carrier structure damages.

Referring to fig. 2 shown in-1 to Fig. 7-3, the first end of shell 130 is connected with the first pulling force carrier 110, shell 130 Second end corresponding with first end is connected with the second pulling force carrier 12 0；The axis of first pulling force carrier 110 and the second pulling force carry The axis of body 120 is overlapped；Namely the axis along the first pulling force carrier 110, shell 130 are provided with corresponding first end and second End.

Radial torque barrier assembly includes the first turntable 140；

One end of first pulling force carrier 110 is provided with the first pulling force spacing head 111；First pulling force spacing head 111 and first Turntable 140 is arranged in shell internal cavity；First pulling force carrier 110 passes through first shell far from one end of the first pulling force spacing head 111 Body opening 131 simultaneously stretches out the other end of shell 130 namely the first pulling force carrier 110 across first shell body opening 131 and stretches out shell 130；For example, the other end of the first pulling force carrier 110 sequentially passes through the first turntable 140 and first shell body opening 131, and stretch out shell 130；First pulling force spacing head 111 can abut shell 130 by the first turntable 140.

Optionally, the first pulling force carrier 110 and the second pulling force carrier 12 0 are the object for conducting pulling force；Optionally, it first draws Power carrier 110 and the second pulling force carrier 12 0 are respectively rope, line or stick etc.；Optionally, the first pulling force carrier 110 and the second pulling force The material of carrier 12 0 is same or different.

Tension bearing 100 described in the present embodiment, structure is simple, install convenient, can it is convenient, effectively by first draw With the connection type of power carrier 110 and second pulling force carrier 12 0 the two pulling force carriers is changed to roll from clearance fit, greatly The rotation threshold value between pulling force carrier is reduced, kink phenomenon is eliminated or substantially eliminate；It may also reach up and eliminate in tension system Excessive radial torque, accurate conduction pulling force, the purpose for extending tension system whole service life.

Shown in Figure 4, three tension bearings 100 illustrate tension bearing 100 and are bearing pulling force from left to right in figure When, it can rotate automatically using radial direction as axis to the process axially to direction of pull overlapping of tension bearing 100.As shown in figure 4, The position of first pulling force carrier 110 and the second pulling force carrier 12 0 is located at the both ends of tension bearing 100；Therefore thrust axis 100 are held when bearing pulling force, meeting autobalance to the axial state Chong Die with direction of pull.

Referring to shown in Fig. 5-1 and Fig. 5-2, optionally, the rotor of the first turntable 140 is needle roller 141 or ball 142, Or other rolling elements；Wherein, being arranged radially axially along turntable of needle roller.It can be appreciated that the first turntable 140 is needle roller Turntable or ball turntable or other rolling element turntables.

Referring to shown in Fig. 3-3, optionally, the first pulling force spacing head 111 is provided with spacing head groove 112 in a ring；The Multiple rotors of one turntable 140 and spacing head groove 112 are cooperatively connected, and multiple rotors of the first turntable 140 can be around The axis of first turntable 140 is rotated in spacing head groove 112.It is more in order to the first turntable 140 by spacing head groove 112 A rotor preferably rotates.

Optionally, the rotor of the first turntable 140 is needle roller 141, and 151 radial section of the first dottle pin slot is rectangle.It is optional Ground, the rotor of the first turntable 140 are ball, and 151 radial section of the first dottle pin slot is arc.

In the optinal plan of the present embodiment, the first pulling force spacing head 111 can be directly connected to the first turntable 140, can also To enable the first pulling force spacing head 111 that can be indirectly connected with the first turntable 140 by dottle pin.

Optionally, referring to fig. 2 shown in-1 to Fig. 2-5, it is arranged between the first pulling force spacing head 111 and the first turntable 140 There is the first dottle pin 150.By the first dottle pin 150 in order to preferably connecting between the first pulling force spacing head 111 and the first turntable 140 It connects, and then acts on the first turntable 140 convenient for the power that the first pulling force carrier 110 acts on the first pulling force spacing head 111.

Optionally, along the axis direction perpendicular to the first pulling force carrier 110, the sectional area of the first dottle pin 150 is not less than the The area for the circle that multiple rotors of one turntable 140 are formed；Can be understood as the first dottle pin 150 can cover the first turntable 140 Multiple rotors so that the sectional area of the first dottle pin 150 is enough big.

Referring to shown in Fig. 6-1 to Fig. 6-4, optionally, the first dottle pin of the first dottle pin 150 being provided on one side in a ring Slot 151；

Multiple rotors of first turntable 140 and the first dottle pin slot 151 are cooperatively connected, and multiple turns of the first turntable 140 Kinetoplast can be rotated around the axis of the first turntable 140 in the first dottle pin slot 151.By the first dottle pin slot 151, in order to first turn Multiple rotors of disk 140 preferably rotate.

Optionally, the rotor of the first turntable 140 is needle roller 141, and 151 radial section of the first dottle pin slot is rectangle, is such as schemed 6-1 and Fig. 6-2.

Optionally, the rotor of the first turntable 140 is ball, and 151 radial section of the first dottle pin slot is arc, such as Fig. 6-3 With Fig. 6-4.

Referring to fig. 2 shown in -5, in the optinal plan of the present embodiment, the first dottle pin 150 and the first pulling force spacing head 111 Mating surface is the conical surface or spherical surface.By the conical surface or mating spherical surfaces, to improve the first dottle pin 150 and the first pulling force spacing head 111 cooperation precision.

In the optinal plan of the present embodiment, the second pulling force carrier 12 0 is fixedly connected with the second end of shell 130.For example, the Two pulling force carrier 12s 0 are directly anchored on shell 130.

Referring to fig. 2 shown in-1 to Fig. 3-3, in the optinal plan of the present embodiment, shell 130 is internally provided in shell empty Chamber；The second end of shell 130 is provided with the second shell body opening 132 being connected to shell internal cavity；Optionally, shell internal cavity can be one A hole, or two holes；Optionally, shell internal cavity includes the first cavity and the second cavity；First shell body opening 131 and second Cavity connection, second shell body opening 132 are connected to the second cavity；Optionally, the first cavity and the second cavity are not connected to mutually.

One end of second pulling force carrier 12 0 is provided with the second pulling force spacing head 121；The setting of second pulling force spacing head 121 exists In shell internal cavity, the other end of the second pulling force carrier 12 0 passes through second shell body opening 132 and stretches out shell 130；The limit of second pulling force First 121 can abut shell 130.Optionally, along the radial direction of second shell body opening 132, the diameter of the second pulling force spacing head 121 is greater than The diameter of second shell body opening 132.Cooperated by the second pulling force spacing head 121 that the second pulling force carrier 12 0 is arranged with shell 130, With the rotation threshold value being further effectively reduced between the first pulling force carrier 110 and the second pulling force carrier 12 0, make two pulling force carriers Very small torque energy radial rotary is only needed, by two free radial rotaries of pulling force carrier, radial torque is blocked to exist It is conducted between two pulling force carriers；And then reaches and eliminate excessive radial torque in tension system, accurate conduction pulling force, extends pulling force system The purpose of system whole service life.

Referring to fig. 2 shown in-5 and Fig. 3-3, optionally, the mating surface of shell 130 and the second pulling force spacing head 121 is cone Face or spherical surface；By the conical surface or mating spherical surfaces, to improve the cooperation precision of shell 130 and the second pulling force spacing head 121.

In the optinal plan of the present embodiment, radial torque barrier assembly includes the second turntable (figure in shell internal cavity In do not show)；

The other end of second pulling force carrier 12 0 sequentially passes through the second turntable and second shell body opening 132, and stretches out shell 130； Second pulling force spacing head 121 abuts shell 130 by the second turntable；

Second turntable is provided with the multiple rotors abutted with shell 130.It is abutted by the second turntable and with shell 130 Multiple rotors are made with the rotation threshold value being further effectively reduced between the first pulling force carrier 110 and the second pulling force carrier 12 0 Two pulling force carriers only need very small torque energy radial rotary, pass through two free radial rotaries of pulling force carrier, resistance Disconnected radial direction torque is conducted between two pulling force carriers；And then reaches and eliminate excessive radial torque in tension system, accurate conduction drawing Power, the purpose for extending tension system whole service life.

Optionally, the rotor of the second turntable can be same or different with the rotor of the first turntable 140.Second turntable Rotor can be needle roller or ball or other rolling elements；Wherein, being arranged radially axially along turntable of needle roller.It can also To be interpreted as the second turntable as needle roller turntable or ball turntable or other rolling element turntables.

Optionally, the second turntable, which has, wears the second turntable through-hole for connecing the second pulling force carrier 12 0；Optionally, the second turntable The axis of through-hole is overlapped with the axis of the second turntable.Optionally, along the radial direction of the second turntable, the second pulling force spacing head 121 it is straight Diameter is greater than the diameter of the second turntable through-hole.Optionally, along the radial direction of the second turntable, the diameter of the second turntable is greater than second shell body opening 132 diameter.

In the optinal plan of the present embodiment, along the axis perpendicular to the first pulling force carrier 110, shell 130 is provided with and shell First opening 133 of internal cavity connection and the second opening 134；First opening 133 and the second opening 134 are located at the of shell 130 Between one end and second end.For example, shell 130 is provided with the first opening 133 being connected to the first cavity and connects with the second cavity The second logical opening 134.By the first opening 133 and the second opening 134, in order to simplify the structure of tension bearing 100, so as to In the production and processing of tension bearing 100.

Optionally, the diameter of the first turntable 140 and the diameter of the first pulling force spacing head 111 are respectively less than the first opening 133 Bore.

Optionally, bore of the diameter of the second pulling force spacing head 121 less than the second opening 134.

Optionally, the direction of the first opening 133 and the second opening 134 is different.

Referring to fig. 2 shown in -6, optionally, shell 130 includes first shell portion 135 and second shell portion 136；

First shell portion 135 is fixedly connected with second shell portion 136, and first shell portion 135 and 136 shape of second shell portion Shelling internal cavity；Optionally, first shell portion 135 is connected through a screw thread with second shell portion 136, welds or the side such as screw is connect Formula is fixedly connected.

The one end of first shell portion 135 far from second shell portion 136 is the first end of shell 130；Namely first shell portion 135 one end far from second shell portion 136 are for connecting the first pulling force carrier 110.

The one end of second shell portion 136 far from first shell portion 135 is the second end of shell 130；Namely second shell portion 136 one end far from first shell portion 135 are for connecting the second pulling force carrier 12 0.Optionally, second shell portion 136 and second Pulling force carrier 12 0 is fixedly connected；Such as second shell portion 136 and the second pulling force carrier 12 0 are integrally formed.

Optionally, first shell portion 135 is provided with first shell body opening 131.

Optionally, second shell portion 136 is provided with second shell body opening 132.Optionally, one end of the second pulling force carrier 12 0 It is provided with the second pulling force spacing head 121 being located in shell internal cavity, the other end of the second pulling force carrier 12 0 passes through second shell body opening 132 and stretch out shell 130.

Referring to shown in Fig. 7-1 and Fig. 7-3, optionally, the first turntable is plain thrust bearing；Plain thrust bearing includes Retainer and multiple rotors；Multiple rotors abut shell 130 by retainer, that is, multiple rotors pass through retainer Shell 130 is abutted indirectly.It is plain thrust bearing by the first turntable, so as to can get very high axial direction under the space of very little Load and high rigidity.

Optionally, the second turntable is plain thrust bearing.

Tension bearing 100 described in the present embodiment, however it is not limited to which the drawstring with spacing head is applicable in, and is not limited to pulling force carrier and is worn Enter direction, mode and the sequence of tension bearing 100.Any object for being able to bear pulling force, it is all using based on plain thrust bearing The self-balancing type pulling sleeve of equal turntables is the conduction of pulling force, and is axially drawn using the turntables such as plain thrust bearing conduction tension system Power, have the device by self-equilibrium characteristic when pulling force, in protection scope of the present invention.

Optionally, referring to shown in Figure 10-1, the installation method of the self-actuating brake wheel carrier of the control of pulling force described in the present embodiment, First wheel carrier pulling force carrier 510 is connect with the second wheel carrier pulling force carrier 520 by tension bearing 100, the first wheel carrier pulling force carrier It is cased with repulsion component 210 outside 510, is cased with repulsion component 210 and clamp 240 outside the second wheel carrier pulling force carrier 520, wherein first Magnet 211, the second magnet 212 and clamp 240 are successively set on the second wheel carrier pulling force carrier 520, and clamp 240 is far from the second magnetic Iron 212 is provided with the card slot for accommodating pulling force spacing head on one side；Pulling force spacing head is adjusted on the second wheel carrier pulling force carrier 520 Position after, enable pulling force spacing head be fixed on the second wheel carrier pulling force carrier 520, and form structure shown in Figure 10-2, later The second extra wheel carrier pulling force carrier 520 is cut.

Optionally, referring to shown in Figure 10-3, the installation method of the self-actuating brake wheel carrier of the control of pulling force described in the present embodiment, There can also be card slot for clamp 240；The repulsion component 210 of first wheel carrier pulling force carrier, 510 housing, the second wheel carrier pulling force carrier After the repulsion component 210 of 520 housings installs, position of the pulling force spacing head on the second wheel carrier pulling force carrier 520 is adjusted simultaneously It enables pulling force spacing head be fixed on the second wheel carrier pulling force carrier 520, clamp 240 is enabled to be connected to the second wheel carrier pulling force carrier later On 520.

The present embodiment additionally provides a kind of wheel assembly, the self-acting braking wheel including wheel 300 and above-mentioned pulling force control Frame.

Wheel 300 is connect with the rotary wheel frame 230 for the self-actuating brake wheel carrier that pulling force controls, and rotary wheel frame 230 and wheel 300 are same Step rotation, so that wheel 300 can be in relative to fixed frame is freely rotated state or braking state.

The technical characteristic of the self-actuating brake wheel carrier of the control of pulling force disclosed in the present embodiment is also applied for the wheel assembly, this The technical characteristic of the self-actuating brake wheel carrier of the published pulling force control of embodiment is not repeated to describe.Wheel described in the present embodiment Device has the advantages that the self-actuating brake wheel carrier of above-mentioned pulling force control, the automatic brake of the pulling force control disclosed in the present embodiment The advantages of wheel carrier, is not repeated to describe herein.

Pulling force described in the present embodiment control self-actuating brake wheel carrier and the wheel assembly pulling force can there are many Source.For example Figure 11-1 and Figure 11-2 is the two states schematic diagram in pulling force source provided in this embodiment；Referring to Figure 11-1 and Shown in Figure 11-2, handle 420 is articulated on vehicle frame 400；The fixed frame 260 and vehicle frame 400 of the self-actuating brake wheel carrier of pulling force control It is fixedly connected；First wheel carrier pulling force carrier 510 is connect with one end of handle 420, by acting on 420 other end of handle, so that handle One end of hand 420 can be rotated around drive-connecting shaft, and then the first wheel carrier pulling force carrier 510 is pulled therewith, by wheel 300 by stopping Car state, which is changed into be in relative to fixed frame, is freely rotated state.Optionally, it is arranged between handle 420 and vehicle frame 400 There is the handle reseting elastic element 410 for enabling handle 420 restore reset condition, so that after the active force for acting on handle 420 is recalled, Handle 420 can restore reset condition.For vehicle frame for example using on the stroller, trammer only needs hand to put down gently on handle, handle It just will pull first round frame pulling force carrier, wheel assembly made not brake；This process description are as follows: as shown in Figure 11-2, trammer When hand is placed on handle, perambulator does not brake, and perambulator is removable；As shown in Figure 11-1, cart manpower leaves handle, pulling force The self-actuating brake wheel carrier of control loses pulling force, and handle resets under the action of handle reseting elastic element 410, the first wheel carrier pulling force Carrier resets, self-actuating brake.Optionally, deconcentrator is installed in suitable position on the stroller, can be achieved with the pulling force at handle It is transferred to each wheel, realize all wheels while being controlled.

In order to simplify structure, the present embodiment can on the basis of the above embodiments be omitted tension bearing 100, specific side Shown in case is exemplified below.

Referring to shown in Fig. 1-7 to Fig. 1-9, Fig. 1-14 to Fig. 1-1-16, wherein the second wheel carrier in the present embodiment Pulling force carrier 520 can be using the second wheel carrier pulling force carrier 520 in embodiment one, can also be by the first round in embodiment one Both frame pulling force carrier 510 and the second wheel carrier pulling force carrier 520 are directly linked together as the second wheel carrier in the present embodiment Pulling force carrier 520.

The self-actuating brake wheel carrier of pulling force control includes the second wheel carrier pulling force carrier 520, repulsion component 210, main frame 220 With the rotary wheel frame 230 for being rotated synchronously with wheel 300.

Optionally, the self-actuating brake wheel carrier of pulling force control includes the second wheel carrier pulling force carrier 520.

Optionally, one end of the second wheel carrier pulling force carrier 520 is connect with handle 420, and the other end is connected with clamp 240.

Repulsion component 210 is oppositely arranged with the second wheel carrier pulling force carrier 520；And repulsion component 210 have enable clamp 240 block The movement tendency in wheel carrier limiting slot 231 is connect, is turned so that the second wheel carrier pulling force carrier 520 is limited in the case where not by external force Wheel carrier 230 rotates in main frame 220；Optionally, repulsion component 210 is socketed on the second wheel carrier pulling force carrier 520；It is optional The inside of the main frame 220 opposite with the second wheel carrier pulling force 520 positions of carrier is arranged in ground, repulsion component 210.Wherein, work as card First 240 with wheel carrier limiting slot 231 be clamped when, a part of clamp 240 is located in slideway 228, another part be located at wheel carrier limit In the slot 231 of position.

The second wheel carrier pulling force carrier 520 is pulled, to overcome the power of repulsion component 210 so that clamp 240 is with the second wheel carrier Pulling force carrier 520 is mobile and far from wheel carrier limiting slot 231, realizes that rotary wheel frame 230 rotates in main frame 220.

Self-actuating brake wheel carrier in the present embodiment has by repulsion component 210 and clamp 240 is enabled to be connected to wheel carrier limiting slot 231 movement tendency, with when not operating the second wheel carrier pulling force carrier 520, rotary wheel frame 230 is in stuck state, and then makes The wheel 300 rotated synchronously with rotary wheel frame 230 is in stuck state namely wheel 300 and is in self-actuating brake state；Work as pulling When the second wheel carrier pulling force carrier, to overcome the power of repulsion component 210 so that clamp 240 is moved with the second wheel carrier pulling force carrier 520 Dynamic and separate wheel carrier limiting slot 231, so that rotary wheel frame 230 is in the state that is freely rotated namely wheel 300 is in and shape is freely rotated State.Pull the second wheel carrier pulling force carrier 520 that can pull by other pulling force carriers, convenient for the clamping of clamp 240 or far from wheel carrier Limiting slot 231.The self-actuating brake wheel carrier mechanically realizes the self-actuating brake under unstressed state, by the shape of pulling force It can be freely rotated under state, improve the peaces such as perambulator, the shopping cart of wheel 300 of self-actuating brake wheel carrier with pulling force control Full performance.

In the optinal plan of the present embodiment, repulsion component 210 includes the first magnet 211 and the second magnet 212 of mutual exclusion；The One magnet 211 is abutted far from one end of the second magnet 212 with main frame 220, the second magnet 212 far from the first magnet 211 one End is abutted with clamp 240；Repulsion between first magnet 211 and the second magnet 212, which has, enables clamp 240 be connected to wheel carrier limit The movement tendency of slot 231.By the first magnet 211 and the second magnet 212 of mutual exclusion, wheel is connected to realize that clamp 240 has The movement tendency of frame limiting slot 231, and then realize 300 self-actuating brake of wheel；By pulling the second wheel carrier pulling force carrier 520, gram The repulsive interaction between the first magnet 211 and the second magnet 212 is taken, to realize clamp 240 far from wheel carrier limiting slot 231, Jin Ershi Existing wheel 300 can be freely rotated.Optionally, the second magnet 212 is fixedly connected with clamp 240；Optionally, clamp 240 is arranged There is the holding tank for accommodating the second magnet 212, in order to be fixedly connected with the second magnet 212.Optionally, main frame 220 is provided with appearance The holding tank of the first magnet 211 is received, in order to abut the first magnet 211.

In the optinal plan of the present embodiment, repulsion component 210 is not limited to above-mentioned magnet assemblies, can also be spring.Example Such as, referring to shown in Fig. 1-8, repulsion component 210 includes the spring 213 being socketed on the second wheel carrier pulling force carrier 520；Spring 213 One end abutted with main frame 220, the other end is abutted with clamp 240；Spring 213, which has, enables clamp 240 be connected to wheel carrier limit The movement tendency of slot 231.By spring 213, to realize that clamp 240 has the movement tendency for being connected to wheel carrier limiting slot 231, into And realize 300 self-actuating brake of wheel；By pulling the second wheel carrier pulling force carrier 520, the elastic force of spring 213 is overcome, to realize Clamp 240 realizes that wheel 300 can be freely rotated far from wheel carrier limiting slot 231.Optionally, spring 213 and clamp 240 It is fixedly connected；Optionally, clamp 240 is provided with the holding tank of accommodating portion spring 213, in order to abut or be fixedly connected bullet Spring 213.Optionally, main frame 220 is provided with the holding tank of accommodating portion spring 213, in order to abut spring 213.

Optionally, referring to the self-actuating brake that shown in Fig. 1-9, Fig. 1-14 and Fig. 1-15, pulling force described in the present embodiment is controlled The installation method of wheel carrier, the second wheel carrier pulling force carrier 520 are cased with repulsion component 210 and clamp 240 outside, wherein third magnet 214 It is arranged on rotary wheel frame 230, the 4th magnet 215 is arranged on clamp 240, and the 4th magnet 215 is located on clamp 240, Attraction between third magnet 214 and the 4th magnet 215 makes clamp 240 have the wheel carrier limiting slot on rotary wheel frame 230 The trend moved in 231.When in use, when user tenses the second wheel carrier pulling force carrier 520, clamp 240 can overcome third The suction of magnet 214 and the 4th magnet 215, so that clamp 240 be made not enter in wheel carrier limiting slot 231；When user no longer When tensing the second wheel carrier pulling force carrier 520, clamp 240 can be entered wheel by the suction of third magnet 214 and the 4th magnet 215 In frame limiting slot 231.

Referring to shown in Fig. 1-16, first through hole 225, when being assembled with wheel, runner are offered in main frame 220 Frame 230 is inserted into first through hole 225, and when wheel 300 is rotated, and rotary wheel frame 230 is rotated with wheel 300, and During rotation, the wheel carrier limiting slot 231 on rotary wheel frame 230 can be corresponding with the slideway 228 on main frame 220, so that sliding Clamp 240 in road 228 enters in wheel carrier limiting slot 231 under the action of repulsion component 210.Moreover, the second wheel carrier pulling force One end of carrier 520 passes through the second through-hole 226 and can connect with clamp 240, and the second wheel carrier pulling force carrier 520 connects with handle 420 It connects.

Optionally, the second magnet 212 is integrated with clamp 240；Or, the 4th magnet 215 is integrated with clamp 240 Change structure.For example, the second magnet 212 and clamp 240 are a monolith magnet, and repel each other with the first magnet 211；Alternatively, the 4th magnetic Iron 215 and clamp 240 are a monolith magnet, and attracting with third magnet 214.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims

1. a kind of self-actuating brake wheel carrier of pulling force control, which is characterized in that carried including tension bearing (100), the second wheel carrier pulling force Body (520), repulsion component (210), main frame (220) and rotary wheel frame (230)；

One end of the second wheel carrier pulling force carrier (520) is connect with the tension bearing (100), and the other end is connected with clamp (240)；

The rotary wheel frame (230) is provided at least one wheel carrier limiting slot (231) along the circumferential direction of itself；Clamp (240) energy It is enough to be clamped with the wheel carrier limiting slot (231)；

The repulsion component (210) is oppositely arranged with the second wheel carrier pulling force carrier (520), and the repulsion component (210) With the movement tendency for enabling the clamp (240) be connected to the wheel carrier limiting slot (231)；

The rotary wheel frame (230) is rotatably connected with the main frame (220), the repulsion component (210) and the clamp (240) setting is in the inside of the main frame (220), inside of tension bearing (100) setting in the main frame (220) Or it is external；

The tension bearing (100) are pulled, so that the second wheel carrier pulling force carrier (520) is moved with the tension bearing (100) It is dynamic, then so that the clamp (240) is far from the wheel carrier limiting slot (231).

2. the self-actuating brake wheel carrier of pulling force control according to claim 1, which is characterized in that carried including the first wheel carrier pulling force Body (510)；

The first wheel carrier pulling force carrier (510) and the second wheel carrier pulling force carrier (520) pass through the tension bearing (100) Connection；

The first wheel carrier pulling force carrier (510) is pulled, so that the second wheel carrier pulling force carrier (520) is with the tension bearing (100) mobile, then so that the clamp (240) is far from the wheel carrier limiting slot (231).

3. the self-actuating brake wheel carrier of pulling force control according to claim 1 or 2, which is characterized in that the repulsion component (210) include mutual exclusion the first magnet (211) and the second magnet (212)；First magnet (211) is far from second magnet (212) one end is abutted with the main frame (220), the one end of second magnet (212) far from first magnet (211) It is abutted with the clamp (240)；Repulsion between first magnet (211) and second magnet (212) has described in order Clamp (240) is connected to the movement tendency of the wheel carrier limiting slot (231)；

Alternatively, the repulsion component (210) includes the spring (213) being socketed on the second wheel carrier pulling force carrier (520)；Institute The one end for stating spring (213) is abutted with the main frame (220), and the other end is abutted with the clamp (240)；The spring (213) there is the movement tendency for enabling the clamp (240) be connected to the wheel carrier limiting slot (231).

4. the self-actuating brake wheel carrier of pulling force control according to claim 2, which is characterized in that the tension bearing (100) It is arranged at the inside of the main frame (220), is socketed with the repulsion component on the first wheel carrier pulling force carrier (510) (210)；The repulsion component (210) has the trend for enabling the tension bearing (100) move towards the rotary wheel frame (230).

5. the self-actuating brake wheel carrier of pulling force control according to claim 1 or 2, which is characterized in that the main frame (220) Inside is articulated with for changing the rotatable support (250) of the second wheel carrier pulling force carrier (520) extending direction；The rotation Supporting element (250) is provided with the rotational support slot with the second wheel carrier pulling force carrier (520) cooperation；

The repulsion component (210) is arranged between the rotatable support (250) and the clamp (240).

6. the self-actuating brake wheel carrier of pulling force control according to claim 1 or 2, which is characterized in that including fixed frame (260)；The main frame (220) is rotatably socketed on the fixed frame (260)；

The tension bearing (100) is arranged in the inside of the fixed frame (260), the second wheel carrier pulling force carrier (520) One end is protruded into the fixed frame (260) and is connect with the tension bearing (100).

7. the self-actuating brake wheel carrier of pulling force control according to claim 6, which is characterized in that along the fixed frame (260) Axial direction, the fixed frame (260) includes corresponding top and bottom；

The bottom of the fixed frame (260) connects the main frame (220) by hollow screw (261)；The hollow screw (261) have along itself axially extending hollow screw through-hole, the second wheel carrier pulling force carrier (520) passes through the hollow spiral shell Nail through-hole is connect with the tension bearing (100)；

The nut being spirally connected with the hollow screw (261) or the fixed frame (260) are provided in the fixed frame (260) Bottom be provided with the threaded hole being spirally connected with the hollow screw (261).

8. the self-actuating brake wheel carrier of pulling force control according to claim 7, which is characterized in that the hollow screw (261) Nut and the main frame (220) between be provided with plain thrust bearing (262), and/or, the bottom of the fixed frame (260) Plain thrust bearing (262) are provided between portion and the main frame (220)；

Bearing (221) are provided between the top and the main frame (220) of the fixed frame (260).

9. the self-actuating brake wheel carrier of pulling force control according to claim 6, which is characterized in that along the fixed frame (260) Axial direction, the fixed frame (260) includes corresponding top and bottom；The top of the fixed frame (260) and the main body The top of frame (220) cooperates；

The universal rotational that is externally connected to of the main frame (220) adjusts action piece (270)；The main frame (220), which has, inserts Connect the universal rotation stop hole of main frame that the universal rotational adjusts action piece (270)；The top of the fixed frame (260) has can The universal rotation stop hole of fixed frame corresponding with the universal rotation stop hole of the main frame；

Axial direction along the fixed frame (260), the universal rotational adjusts action piece (270) and can move back and forth, so that described Universal rotational adjusts action piece (270) insertion or far from the universal rotation stop hole of the fixed frame.

10. the self-actuating brake wheel carrier of pulling force control according to claim 9, which is characterized in that the main frame (220) Outside is fixedly installed universal rotational fixed top (223) and universal rotational is fixed lower part (224)；Along the fixed frame (260) Axial direction, the universal rotational fixed top (223) setting fixes at the top of the main frame (220) with the universal rotational Between lower part (224)；

The universal rotational adjusts action piece (270) and is fixedly installed universal action piece magnetic part (271)；Along the fixed frame (260) axial direction, the universal rotational fixed top (223), the universal action piece magnetic part (271) and the universal rotational Fixed lower part (224) are set gradually；The universal rotational fixed top (223), the universal action piece magnetic part (271) and institute The inside for stating universal rotational fixed lower part (224) is provided with magnet, and two adjacent magnet attract each other；

When the universal rotational adjusts action piece (270) along the main frame (220) movement, so that institute under the action of magnetic attraction Universal action piece magnetic part (271) is stated to connect with the universal rotational fixed top (223), and it is dynamic to enable the universal rotational adjust Workpiece (270) is inserted into the universal rotation stop hole of fixed frame, alternatively, so that the universal action piece magnetic under the action of magnetic attraction Portion (271) is connect with the universal rotational fixed lower part (224), and the universal rotational is enabled to adjust action piece (270) far from institute State the universal rotation stop hole of fixed frame.

11. the self-actuating brake wheel carrier of pulling force control according to claim 2, which is characterized in that the tension bearing (100) For connecting the first pulling force carrier (110) and the second pulling force carrier (120)；

The first pulling force carrier (110) is the first wheel carrier pulling force carrier (510), and the second pulling force carrier (120) is The second wheel carrier pulling force carrier (520)；Alternatively, the first pulling force carrier (110) is the second wheel carrier pulling force carrier (520), the second pulling force carrier (120) is the first wheel carrier pulling force carrier (510)；

The tension bearing (100) includes shell (130) and radial torque barrier assembly；

One end of the first pulling force carrier (110) is provided with the first pulling force spacing head (111)；

The first end of the shell (130) connects the first pulling force carrier (110), the shell (130) with first end phase Corresponding second end connects the second pulling force carrier (120)；

The radial direction torque barrier assembly includes the first turntable (140)；

The shell (130) is internally provided with shell internal cavity；The first end of the shell (130) is provided with and the shell internal cavity The first shell body opening (131) of connection；The first pulling force spacing head (111) and first turntable (140) are arranged in the shell In internal cavity, and first turntable (140) covers on the first pulling force carrier (110)；The first pulling force spacing head (111) shell (130) can be connected to using first turntable (140)；

The first pulling force carrier (110) passes through the first shell body opening far from one end of the first pulling force spacing head (111) (131) and the shell (130) are stretched out；

First turntable (140) is provided with the multiple rotors abutted with the shell (130).

12. the self-actuating brake wheel carrier of pulling force control according to claim 11, which is characterized in that the first pulling force limit The first dottle pin (150) are provided between head (111) and first turntable (140)；

The the first dottle pin slot (151) of first dottle pin (150) being provided on one side in a ring；

Multiple rotors of first turntable (140) and the first dottle pin slot (151) are cooperatively connected, and first turntable (140) multiple rotors can be rotated around the axis of first turntable (140) in the first dottle pin slot (151).

13. the self-actuating brake wheel carrier of pulling force control according to claim 11, which is characterized in that first turntable (140) it is plain thrust bearing (262)；

The plain thrust bearing (262) includes retainer and multiple rotors；Multiple rotors pass through described in retainer abutting Shell (130).

14. the self-actuating brake wheel carrier of pulling force control according to claim 11, which is characterized in that the shell (130) Second end is provided with the second shell body opening (132) being connected to the shell internal cavity；

One end of the second pulling force carrier (120) is provided with the second pulling force spacing head (121) in the shell internal cavity； The other end of the second pulling force carrier (120) passes through the second shell body opening (132) and stretches out the shell (130)；It is described Second pulling force spacing head (121) can abut the shell (130).

15. the self-actuating brake wheel carrier of pulling force control according to claim 14, which is characterized in that the shell (130) sets It is equipped with the first opening (133) and the second opening (134) being connected to the shell internal cavity；First opening is (133) and described Second opening (134) is located between the first end and second end of the shell (130)；

The diameter of first turntable (140) and the diameter of the first pulling force spacing head (111) are respectively less than first opening (133) bore；

The diameter of the second pulling force spacing head (121) is less than the bore of second opening (134).

16. the self-actuating brake wheel carrier of pulling force control according to claim 11, which is characterized in that shell (130) packet Include first shell portion (135) and second shell portion (136)；

The first shell portion (135) is fixedly connected with the second shell portion (136), and the first shell portion (135) with The second shell portion (136) forms the shell internal cavity；

The one end of the first shell portion (135) far from the second shell portion (136) is the first end of the shell (130)；

The one end of the second shell portion (136) far from the first shell portion (135) is the second end of the shell (130).

17. the self-actuating brake wheel carrier of pulling force control according to claim 11, which is characterized in that the second pulling force carrier (120) it is fixedly connected with the second end of the shell (130)；

And/or the first pulling force spacing head (111) is provided with spacing head groove (112) in a ring；First turntable (140) multiple rotors and the spacing head groove (112) are cooperatively connected, and multiple rotations of first turntable (140) Body can be rotated around the axis of first turntable (140) in the spacing head groove (112).

18. a kind of wheel assembly, which is characterized in that including wheel (300) and the described in any item pulling force controls of claim 1-17 The self-actuating brake wheel carrier of system；

The wheel (300) connect with the rotary wheel frame (230) for the self-actuating brake wheel carrier that the pulling force controls, and the rotary wheel frame (230) it is rotated synchronously with the wheel (300).

19. a kind of self-actuating brake wheel carrier of pulling force control, which is characterized in that including the second wheel carrier pulling force carrier (520), repulsion group Part (210), main frame (220) and rotary wheel frame (230)；

One end of the second wheel carrier pulling force carrier (520) is connected with clamp (240), the clamp (240) and the repulsion group Part (210) connection；

The rotary wheel frame (230) is rotatably connected with the main frame (220), the repulsion component (210) and the clamp (240) it is arranged in the inside of the main frame (220)；

The second wheel carrier pulling force carrier (520) is pulled, so that the clamp (240) is far from the wheel carrier limiting slot (231).

20. the self-actuating brake wheel carrier of pulling force control according to claim 19, which is characterized in that the main frame (220) On offer the slideway (228) slided with the second wheel carrier pulling force carrier (520) for the clamp (240), and the clamp (240) it is greater than the groove depth of the wheel carrier limiting slot (231) along the length of the extending direction of the slideway (228).

21. the self-actuating brake wheel carrier of pulling force control according to claim 20, which is characterized in that the main frame (220) On offer first through hole and blind hole, the slideway is between the blind hole and the first through hole；

The second through-hole passed through for the second wheel carrier pulling force carrier (520) is offered between the blind hole and the slideway.

22. the self-actuating brake wheel carrier of pulling force control according to claim 19, which is characterized in that the repulsion component (210) include mutual exclusion the first magnet (211) and the second magnet (212)；First magnet (211) is far from second magnet (212) one end is abutted with the main frame (220), the one end of second magnet (212) far from first magnet (211) It is abutted with the clamp (240)；Repulsion between first magnet (211) and second magnet (212) has described in order Clamp (240) is connected to the movement tendency of the wheel carrier limiting slot (231)；

Alternatively, the repulsion component (210) includes the spring (213) being socketed on the second wheel carrier pulling force carrier (520)；Institute The one end for stating spring (213) is abutted with the main frame (220), and the other end is abutted with the clamp (240)；The spring (213) there is the movement tendency for enabling the clamp (240) be connected to the wheel carrier limiting slot (231)；

Alternatively, the repulsion component (210) includes that the third magnet (214) being arranged on the rotary wheel frame (230) and setting exist The 4th magnet (215) on the clamp (240), and the third magnet (214) and the 4th magnet (215) have mutually Close trend.

23. the self-actuating brake wheel carrier of pulling force control according to claim 22, which is characterized in that second magnet (212) it is integrated with the clamp (240)；

Or, the 4th magnet (215) is integrated with the clamp (240).