CN101695893B - Caster wheel capable of braking - Google Patents
Caster wheel capable of braking Download PDFInfo
- Publication number
- CN101695893B CN101695893B CN2009101931442A CN200910193144A CN101695893B CN 101695893 B CN101695893 B CN 101695893B CN 2009101931442 A CN2009101931442 A CN 2009101931442A CN 200910193144 A CN200910193144 A CN 200910193144A CN 101695893 B CN101695893 B CN 101695893B
- Authority
- CN
- China
- Prior art keywords
- wheel
- caster wheel
- wheel body
- dust
- blocking device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000013016 damping Methods 0.000 claims abstract description 11
- 230000000903 blocking effect Effects 0.000 claims description 18
- 239000000428 dust Substances 0.000 claims description 17
- 238000011084 recovery Methods 0.000 claims description 6
- 235000004443 Ricinus communis Nutrition 0.000 description 21
- 238000004880 explosion Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Handcart (AREA)
Abstract
The invention relates to a caster wheel capable of braking. A braking mechanism of the caster wheel is positioned inside a wheel body component and comprises a controller provided with a signal receiving unit, a locking device controllably connected to the controller, and a rotary damper. The rotary damper is provided with a first part with a limiting structure and a second part fixed on the wheel body component, wherein the first part is separated from or matched with the locking device through the limiting structure to form a rotatable free state or an irrotatable locking state, and the first part is in opposite rotating fit with the second part through a damping element. The design of the rotary damper is used in the caster wheel; after exceeding the specified area, a trolley also can be slowly pushed under the action of the rotary damper instead of being suddenly and completely locked, thereby the risk on users can be avoided and the damage on the wheel body by forcing to push the trolley after the caster wheel is locked can be prevented.
Description
Technical field
The present invention relates to a kind of castor, especially a kind of stop mechanism caster wheel that has.
Background technology
Supermarket shopping more and more becomes modern's requisite consumer behavior of living in current society, and supermarket shopping car plays an important role in supermarket shopping as supermarket shopping means of delivery easily.Utilizing after supermarket shopping car loaded commodity, the mode that reclaims by the supermarket staff is mostly adopted in the recovery of present domestic supermarket shopping car, the waste of manpower resource, and simultaneously, cost of labor is increasingly high, is unfavorable for the cost control in supermarket.The stolen situation of supermarket shopping car also happens occasionally.Because each shopping cart all is quite expensive, so the loss of shopping cart causes very big economic loss to businessman.
Based on the stolen situation of supermarket shopping car; Practice thrift human cost simultaneously, the antitheft shopping cart arises at the historic moment, and its groundwork is: be automatically locked when the antitheft that is provided with through the supermarket is regional through a wheel on the shopping cart; Whole shopping cart can't be promoted, reach the antitheft purpose.Because this kind mode is locked fully suddenly when shopping cart is regional through antitheft, possibly cause the damage of shopping cart wheel, the while possibly cause the personnel that use shopping cart because the unexpected brake of shopping cart causes danger.
China's utility model patent 200820201506.9 discloses a kind of caster wheel of braking by the applicant's application; The stop mechanism of this castor is positioned at the outside of wheel body assembly; It comprises controller with signal receiving unit, controllably is connected in the blocking device and the rotary type damper of this controller; This damper comprises shell with position limiting structure and the damping wheel that is positioned at this shell; Said shell separates with said blocking device or cooperates through its position limiting structure and forms rotatable free state or non-rotatable lockup state, and said damping wheel is in transmission connection in said wheel body assembly.This castor has adopted the design of band damper; Behind the zone of overshoot; Hand barrow is because the effect of damper can also be carried out several meters lentamente; Rather than suddenly locked fully, thus can not cause danger to the user, prevented also that castor from being promoted hand barrow after locked by force and damage that wheel body is caused.Because the stop mechanism of above-mentioned castor is positioned at the outside of wheel body assembly, and has adopted gear drive, comparatively complicacy, volume are big, manufacturing cost is higher to cause structure, therefore still have further improved space.
Summary of the invention
But main purpose of the present invention provides and a kind ofly not only can prevent but also can play the brake castor of anti-theft feature that it was simple and compact for structure, volume is little, low cost of manufacture locked suddenly.
For realizing above-mentioned purpose; The present invention has adopted following technical scheme: design a kind of caster wheel of braking; Comprise that wheel carrier, rotatably support are in the wheel body assembly of this wheel carrier and the stop mechanism that cooperates with this wheel body assembly; Said stop mechanism is positioned at the inside of this wheel body assembly, and this stop mechanism comprises controller with signal receiving unit, controllably is connected in the blocking device and the rotary type damper of this controller; Said rotary type damper has the first and the second portion that is connected and fixed on said wheel body assembly of band position limiting structure; This first separates with said blocking device or cooperates through its position limiting structure and forms rotatable free state or non-rotatable lockup state, forms relatively turnable the cooperation through damping element between said first and the second portion.
Said first is a base, and said second portion is a lid, and said damping element is a torsion spring, and an end of this torsion spring is fixed in said lid, and the other end is pressed on the limiting component that is fixed in said base.
Said wheel body assembly comprises tire body, bearing, wheel hub, big cover of dust and little cover of dust; Said wheel hub is tight with at the inner circumferential side of tire body; It is fixing that said bearing and wheel hub are connected coaxially, and said big cover of dust and little cover of dust are fixed in the both sides of said wheel hub.
Said lid is fastened on the said big cover of dust through screw.
Said rotary type damper is arranged at the midway location of said wheel body component internal.
Said wheel carrier comprises pipe link, the rotating element that connects support and be made up of ball and ball dish, and said pipe link forms relatively turnable connection through this rotating element with the said support that is connected.
Said blocking device is arranged on one and is positioned on the reaction plate of said wheel body component internal, and this reaction plate connects through a circumferential locating part and circumferentially is fixed in said wheel carrier, and said blocking device comprises drive part, running part and operating part.Said drive part is a motor; Said running part is a train of reduction gears; Said operating part comprises locking bar and the rotating head that acts on this locking bar, and said rotating head is connected in said train of reduction gears, and said locking bar is arranged on the locking bar axle of said reaction plate through the elastic recovery parts rotationally.Said rotating head is the cam rotating head, and said elastic recovery parts are torsion spring.
Compared with prior art, the present invention has the following advantages and useful result:
1) this castor is difficult to promote through back, antitheft zone, thereby reaches theft-proof purpose.
2) solved common antitheft hand barrow and when antitheft, the user has been caused dangerous problem because of its castor is suddenly locked.
3) having solved common antitheft hand barrow continues promotion and wheel body is caused wear problems when its castor is locked.
4) stop mechanism of this castor is arranged at the wheel body component internal, has simplified mechanism, has reduced volume, has reduced manufacturing cost, and profile is also more attractive in appearance.
5) this castor can be widely used in hand barrows such as shopping cart, baggage car, perambulator, tote cart, stretcher.
Description of drawings
Fig. 1 is the block diagram of a kind of embodiment of castor of the present invention;
Fig. 2 is the parts explosion of castor shown in Figure 1;
Fig. 3 is the parts explosion of the wheel body assembly among Fig. 2;
Fig. 4 is the front elevation of the rotary type damper among Fig. 2;
Fig. 5 is the A-A cutaway view of Fig. 4;
Fig. 6 is the parts explosion of rotary type damper shown in Figure 4;
Fig. 7 is the parts explosion at another visual angle of rotary type damper shown in Figure 4;
Fig. 8 is the inner structure scheme drawing after rotary type damper shown in Figure 4 is removed lid;
Fig. 9 is the front elevation of castor shown in Figure 1;
Figure 10 is the B-B cutaway view of Fig. 9;
Figure 11 is the C-C cutaway view of Fig. 9;
Figure 12 is the released state scheme drawing of castor shown in Figure 1;
Figure 13 is the lock-out state scheme drawing of castor shown in Figure 1;
The specific embodiment
Describe the present invention in detail below in conjunction with accompanying drawing.In institute's drawings attached, identical mark will be used to refer to identical parts, characteristic or structure.It is only of the present invention with reference to the property illustration as it will be apparent to those skilled in the art that embodiment introduces the concrete structure or the parts that are directed against in the process; Those skilled in the art can also design do not exceed technical scope of the present invention and essence various and be equal to or the similar techniques structure under the enlightenment of this technical scheme; If it is unfavorable limiting the protection domain that claim of the present invention includes with this exemplary illustration thus, is equal to or is similar to the protection domain that technical scheme of the present invention still belongs to claim of the present invention.And from simple and clear needs, the applicant has omitted the description of known function and structure.
Referring to Fig. 1 to Fig. 3; This castor comprises that mainly wheel carrier 21, rotatably support are in the wheel body assembly 22 of this wheel carrier and the stop mechanism that is arranged on this wheel body component internal and is mated; This stop mechanism is installed in the die cavity of wheel hub 14 of wheel body assembly 22; It has comprised controller 11, controllably has been connected in the blocking device and the rotary type damper 12 of this controller 11, and rotary type damper 12 is arranged at said wheel body assembly 22 in-to-in middles or position intermediate roughly.Wheel body assembly 22 inside are provided with a reaction plate 13, and this reaction plate 13 is used for circumferential spacing square-section contiguous block 25 through one and is connected in wheel carrier 21, thereby forms circumferentially fixing with wheel carrier 21.This square-section contiguous block 25 passes the square hole on square hole 215 and the reaction plate 13 on the wheel carrier 21 respectively, and this square-section contiguous block 25 also has the circular hole that can supply wheel shaft 9 to pass.When wheel body assembly 22 when wheel shaft 9 rotates with respect to wheel carrier 21, this reaction plate 13 can't rotate along with wheel body assembly 22.Said controller 11 is for to be fastened on the circuit card on the said reaction plate 13, and it includes signal receiving unit and control signal output unit etc.Power subsystem unit 26 is fixed on the controller 11, is used for to its power supply.Said wheel carrier 21 comprises pipe link 211, the rotating element 213 that connects support 212 and be made up of ball and ball dish; Said pipe link 211 forms relatively turnable connection through this rotating element 213 with the said support 212 that is connected, and connects support 212 and is provided with the circular hole 214 and square hole 215 that can supply following wheel shaft 9 to pass.
Referring to Fig. 2 and Fig. 3; Said wheel body assembly 22 is installed on the wheel carrier 21 through wheel shaft 9 and nut 17; This wheel body assembly 22 comprises tire body 15, bearing 23, wheel hub 14, big cover of dust 10, little cover of dust 16, and wheel hub 14 is tight with at the inner circumferential side of tire body 15, and bearing 23 is connected fixing with wheel hub 14 coaxially; Big cover of dust 10 and little cover of dust 16 are fixed in the both sides of wheel hub 14 through screw, lock together with the following lid 32 of spiral shell 24 with big cover of dust 10 and rotary type damper 12.At this moment, when tire body 15 rotated, rotary type damper 12 also can be followed together and rotate.
Referring to Fig. 2; Said blocking device is arranged on the said reaction plate 13; This blocking device comprised motor 20 as drive part, as the train of reduction gears of running part and as the locking bar 18 of operating part with act on the cam rotating head 19 of this locking bar; This cam rotating head 19 is connected in said train of reduction gears, and said locking bar 18 is through be arranged on the locking bar axle 131 of reaction plate 13 such as elastic recovery parts such as torsion springs rotationally.
Referring to Fig. 4 to Fig. 8; Rotary type damper 12 mainly comprises base 34, lid 32, torsion spring 33, limited post 35, screw 36, axle sleeve 37, fixed cover 31; The shell of base 34 and lid 32 formation rotary type dampers 12, torsion spring 33 is arranged between base 34 and the lid 32.Axle sleeve 37 is set on the wheel shaft 9, can support said shell and rotate around wheel shaft 9.On the circumference side of this base 34 evenly the compartment of terrain be distributed with several position-limited troughs 47, separate with locking bar 18 on the blocking device or cooperate these base 34 rotatable free state of formation or non-rotatable lockup states through position-limited trough 47.The principle of work of this rotary type damper 12 is: an end 331 of torsion spring 33 is fixed in lid 32 through fixed cover 31, and the other end 332 is pressed on through screw 36 and is fixed on the base 34 in-to-in limited posts 35.When base 34 and lid 32 relatively rotated, the torsion that torsion spring 33 produces hindered relatively rotating of base 34 and lid 32.If produce relative rotation between them, enough big external force must be arranged.Rotary type damper 12 is except adopting torsion spring as the damping element; Can also adopt such as the damping wet goods as damping element; A kind of rotary type damper that adopts the structure of the rotary type damper of damping oil form to be disclosed for No. 200820202130.3 with reference to Chinese invention patent just is not described in detail here.
When above-mentioned castor is installed on shopping cart when using, the user promotes shopping cart, and tire body 15 rotates with ground friction; And driving wheel hub 14 rotations, big cover of dust 10 adopts screws to be connected with wheel hub 14, in Figure 10; Lid 32 adopts screw to be connected with big cover of dust 10; When wheel body assembly 22 rotates, drive lid 32 and rotate, this moment is through being transferred to base 34 with lid 32 bonded assembly torsion springs 33, thereby makes its synchronous rotation.
Referring to Figure 11, this is the situation under a kind of released state, and promptly shopping cart is in the interior caster wheel state of range of use that the market allows, and what this moment, rotary type damper 12 had no stops, the user can promote shopping cart free, neatly.
When the user shifts shopping cart the range of use boundary line of market permission onto; The security system in market can send to locking signal the signal receiving unit of controller through modes such as radio frequencies; When receiving above-mentioned signal; Controller 11 is connected to the motor 20 of blocking device and controls its motion through its control signal output unit, and motor 20 drives cam rotating head 19 through train of reduction gears and clockwise rotates 90 degree, and this moment, motor 20 stopped operating.Locking bar 18 is positioned on the locking bar axle 131 on the reaction plate 13, and it can only rotate around locking bar axle 131.Locking bar 18 is provided with torsion spring, and under the effect of this torsion spring, locking bar 18 is with the right-hand revolution among Figure 12, withstands up to being rotated 19, and at this moment, the position of locking bar 18 is shown in figure 13, the situation under Here it is a kind of lock-out state.In this case, when the user promotes shopping cart, when being transferred to rotary type damper 12 through transmission device; Rotary type damper 12 is by the anticlockwise motion among Figure 11, and at this moment, locking bar 18 just blocks the position-limited trough 47 on the shell of rotary type damper 12; This shell can't be rotated; Receive the resistance that comes from base 34 during torsion spring 33 rotations, this resistance reacts on wheel body assembly 22 through lid 32, to such an extent as to make the user when promoting shopping cart, will use very big power to promote.
Shopping cart under the staff in market and user firmly will be in the lock state is pushed into when the market is set separates near the locking wire; The security system in market sends to unlocking signal through modes such as radio frequencies the signal receiving unit of controller 11; When receiving above-mentioned signal; 20 motions of controller 11 control blocking device in-to-in motors; When the train of reduction gears of motor 20 through blocking device drives cam rotating head 19 and rotates counterclockwise the vertex position that makes locking bar 18 be positioned at rotating head 19 camming surfaces; Motor 20 stops operating, and at this moment has been in released state shown in Figure 11, and the user can promote shopping cart free, neatly and in the range of use that the market allows, walk about.
In sum, the said structure caster wheel can guarantee that hand barrow can only use in the scope of its permission, if the use of hand barrow overshoot zone; The stop mechanism work of castor; Hand barrow is produced a big resistance, make the user be difficult to continue to promote hand barrow, thereby realize theft-proof function.This castor has adopted the design of band rotary type damper; Behind the zone of overshoot; Hand barrow can also be carried out because of the effect of rotary type damper slowly; Rather than suddenly locked fully, thus can not cause danger to the user, prevented also that castor from being promoted hand barrow after locked by force and damage that wheel body is caused.
Claims (9)
1. can brake caster wheel; Comprise that wheel carrier, rotatably support are in the wheel body assembly of this wheel carrier and the stop mechanism that cooperates with this wheel body assembly; It is characterized in that: said stop mechanism is positioned at the inside of this wheel body assembly; This stop mechanism comprises controller, blocking device and rotary type damper, and said controller has signal receiving unit, and said blocking device controllably is connected in this controller; Said rotary type damper has the first and the second portion that is connected and fixed on said wheel body assembly of band position limiting structure; This first separates with said blocking device or cooperates through its position limiting structure and forms rotatable free state or non-rotatable lockup state, forms relatively turnable the cooperation through damping element between said first and the second portion.
2. the caster wheel of braking according to claim 1; It is characterized in that: said first is a base, and said second portion is a lid, and said damping element is a torsion spring; One end of this torsion spring is fixed in said lid, and the other end is pressed on the limiting component that is fixed in said base.
3. the caster wheel of braking according to claim 2; It is characterized in that: said wheel body assembly comprises tire body, bearing, wheel hub, big cover of dust and little cover of dust; Said wheel hub is tight with at the inner circumferential side of tire body; It is fixing that said bearing and wheel hub are connected coaxially, and said big cover of dust and little cover of dust are fixed in the both sides of said wheel hub.
4. the caster wheel of braking according to claim 3 is characterized in that: said lid is fastened on the said big cover of dust through screw.
5. the caster wheel of braking according to claim 4, it is characterized in that: said rotary type damper is arranged at the midway location of said wheel body component internal.
6. the caster wheel of braking according to claim 5; It is characterized in that: said wheel carrier comprises pipe link, the rotating element that connects support and be made up of ball and ball dish, and said pipe link forms relatively turnable connection through this rotating element with the said support that is connected.
7. according to each described caster wheel of braking of claim 1 to 6; It is characterized in that: said blocking device is arranged on one and is positioned on the reaction plate of said wheel body component internal; This reaction plate connects through a circumferential locating part and circumferentially is fixed in said wheel carrier, and said blocking device comprises drive part, running part and operating part.
8. the caster wheel of braking according to claim 7 is characterized in that: said drive part is a motor; Said running part is a train of reduction gears; Said operating part comprises locking bar and the rotating head that acts on this locking bar, and said rotating head is connected in said train of reduction gears, and said locking bar is arranged on the locking bar axle of said reaction plate through the elastic recovery parts rotationally.
9. the caster wheel of braking according to claim 8 is characterized in that: said rotating head is the cam rotating head, and said elastic recovery parts are torsion spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101931442A CN101695893B (en) | 2009-10-19 | 2009-10-19 | Caster wheel capable of braking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101931442A CN101695893B (en) | 2009-10-19 | 2009-10-19 | Caster wheel capable of braking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101695893A CN101695893A (en) | 2010-04-21 |
| CN101695893B true CN101695893B (en) | 2012-04-25 |
Family
ID=42141035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101931442A Expired - Fee Related CN101695893B (en) | 2009-10-19 | 2009-10-19 | Caster wheel capable of braking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101695893B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103496296B (en) * | 2013-10-11 | 2015-10-14 | 宁波禾采医疗器械有限公司 | A kind of castor of medical hospital bed go-cart |
| CN107116971A (en) * | 2017-05-23 | 2017-09-01 | 台山市金昊贸易有限公司 | A kind of Novel rolling wheel for market shopping car |
| CN107244189A (en) * | 2017-05-23 | 2017-10-13 | 台山市金昊贸易有限公司 | A kind of roller for being easy to assembling for market shopping car |
| CN107128127A (en) * | 2017-05-23 | 2017-09-05 | 台山市金昊贸易有限公司 | A kind of combination roller for market shopping car |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201520161U (en) * | 2009-10-19 | 2010-07-07 | 珠海百亚电子科技有限公司 | Caster capable of braking |
-
2009
- 2009-10-19 CN CN2009101931442A patent/CN101695893B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201520161U (en) * | 2009-10-19 | 2010-07-07 | 珠海百亚电子科技有限公司 | Caster capable of braking |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101695893A (en) | 2010-04-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8464843B2 (en) | Lockable caster wheels | |
| CN101695893B (en) | Caster wheel capable of braking | |
| CN201520161U (en) | Caster capable of braking | |
| CN204526642U (en) | A kind of orientable cardan wheel | |
| US8353389B2 (en) | Braking assembly | |
| CN108657324B (en) | Embedded bicycle parking device | |
| CN101556725B (en) | Supermarket shopping anti-theft system and realization method thereof | |
| CN101992818B (en) | Electric vehicle locking tool | |
| CN201291713Y (en) | Truckle capable of braking | |
| CN201511753U (en) | Ant-theft wheel-locking device | |
| CN104309722A (en) | Screw-type electric antitheft stand for two-wheel vehicle | |
| CN203078641U (en) | Invisible bicycle lock | |
| CN210858385U (en) | Computer data information anti-theft device | |
| CN203332271U (en) | Lock shaft structure | |
| CN203391836U (en) | Folding cart | |
| CN201784787U (en) | Clutch device of electric swing car for children | |
| CN209258295U (en) | A kind of automatic localization smart lock | |
| CN205220218U (en) | Brake wheelset structure | |
| CN201009850Y (en) | Telescopic steering wheel lock for car | |
| CN201729241U (en) | Device for limiting and locking direction of front wheel of children motor-driven toy car | |
| CN219257600U (en) | Electric bicycle front fork with anti-theft alarm function | |
| CN2210941Y (en) | Earth-pile type lock for bicycle or motor cycle | |
| CN201646946U (en) | Electric vehicle front wheel drum brake lock | |
| CN2928634Y (en) | Safety anti-theft locking mechanism for two wheel vehicle | |
| CN2296281Y (en) | Wheels with brakes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120425 Termination date: 20211019 |