CN219795130U

CN219795130U - Three-roller brake core and three-roller brake

Info

Publication number: CN219795130U
Application number: CN202320950696.9U
Authority: CN
Inventors: 曾科明; 方世成
Original assignee: Entropy Technology Co Ltd
Current assignee: Entropy Technology Co Ltd
Priority date: 2023-04-24
Filing date: 2023-04-24
Publication date: 2023-10-03
Anticipated expiration: 2033-04-24

Abstract

The utility model provides a three-roller brake core and a three-roller brake, wherein the three-roller brake core comprises: a base; the rotating shaft assembly comprises a first shaft body and a cam, the first shaft body can rotate around a shaft, the first shaft body is exposed out of the through hole, one end of the first shaft body, which is positioned at one side of the machine base, is a first shaft end used for being connected with the three-roller body structure, and one end of the first shaft body, which is exposed out of the through hole, is positioned at the other side of the machine base, is a second shaft end; the cam is arranged on the second shaft end, and three convex parts are sequentially formed around the axis of the first shaft body; the damping assembly comprises a second shaft body, a first arm body, a damping piece and a first pulley, wherein the second shaft body is arranged on the base, the first arm body is connected with the second shaft body and can rotate around the second shaft body, the damping piece is arranged on the base and is used for being abutted with the first arm end, and the first pulley is arranged at the second arm end and is abutted with the convex part under the abutting of the damping piece. Through adopting above-mentioned technical scheme, increased three roll body structure's rotation resistance and reduced the rotational speed, promoted current experience.

Description

Three-roller brake core and three-roller brake

Technical Field

The utility model relates to the technical field of three-roller brakes, in particular to a three-roller brake core and a three-roller brake.

Background

The three-roller gate is a kind of channel gate, and is specially used for the pass gate where personnel exit and entrance need to be checked or controlled, such as places like dining halls, hotels, office buildings, museums, gymnasiums, clubs, subways, stations, wharfs, tourist attractions, etc.

At present, when passing through the three-roller brake, the passing personnel need push the roll body side before the body and can pass, and in the promotion in-process, the roll body behind the body takes place the rotational speed too fast and strike passing personnel easily, causes the passing personnel to pass through and experiences inadequately like this.

Disclosure of Invention

The utility model aims to provide a three-roller brake core and a three-roller brake, which are used for solving the technical problems that in the prior art, the roller body of the three-roller brake is easy to generate too high rotating speed in passing, so that passing personnel are impacted, and the passing experience is poor.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

in a first aspect, a three-roller brake cartridge is provided, comprising:

the machine base is provided with a through hole;

the rotating shaft assembly comprises a first shaft body and a cam, the first shaft body is in clearance fit with the through hole, the first shaft body can rotate around a shaft, the first shaft body is exposed out of the through hole, one end of the first shaft body, which is positioned at one side of the machine base, is a first shaft end used for being connected with a three-roller body structure, and the first shaft body is exposed out of the through hole, and one end of the first shaft body, which is positioned at the other side of the machine base, is a second shaft end; the cam is arranged on the second shaft end and is coaxial with the first shaft body, and three convex parts and concave parts formed between two adjacent convex parts are sequentially formed around the axis of the first shaft body;

the damping assembly comprises a second shaft body, a first arm body, a damping piece and a first pulley, wherein the second shaft body is arranged on the base, the first arm body is connected with the second shaft body and can rotate around the second shaft body, the first arm body is provided with a first arm end and a second arm end which are opposite, the damping piece is arranged on the base and is used for being abutted with the first arm end, and the first pulley is arranged at the second arm end and is abutted with the convex part under the action of the pushing action of the damping piece.

By adopting the technical scheme, the rotation resistance of the three-roller structure is increased, and the rotation speed of the three-roller structure during rotation is reduced; therefore, the possibility that passing personnel are impacted by the three-roller structure is reduced, and the passing experience is improved.

In one embodiment, the damping member includes a screw and a pushing head disposed at an end of the screw near the second arm end, where the pushing head has elasticity and is used to be abutted against the second arm end, and the screw is in threaded connection with the stand, so that the screw can drive the pushing head to move along a direction near or away from the second arm end.

By adopting the technical scheme, the rotation resistance and the rotation speed of the three-roller structure can be adjusted.

In one embodiment, a groove is formed at one end of the screw near the second arm end, and the pushing head is formed with a pushing rod inserted into the groove, and the pushing rod is elastically connected with the bottom of the groove.

By adopting the technical scheme, the thrust head is elastically connected with the screw rod.

In one embodiment, the thrust head is provided with a chamfer cooperating with the second arm end.

By adopting the technical scheme, the degree of smoothness of the fit between the pushing head and the second arm end is improved.

In one embodiment, a nut is arranged on the base, and the screw rod is in threaded fit with the nut.

By adopting the technical scheme, the threaded connection between the screw and the machine base is realized.

In one embodiment, the damping assembly further comprises a second pulley disposed on the second arm end and abutting the thrust head.

By adopting the technical scheme, the thrust head is well matched with the second arm end.

In one embodiment, the three-roller brake movement further comprises a limiting assembly, the limiting assembly comprises a third shaft body, a second arm body, an elastic piece and a third pulley, the third shaft body is arranged on the base, the second arm body is connected with the third shaft body and can rotate around the third shaft body, the elastic piece is connected with the second arm body and the base, and the third pulley is arranged on the base and is in butt joint with the concave portion under the action of the elastic force of the elastic piece.

By adopting the technical scheme, the rotation ordering of the three-roller structure is realized.

In one embodiment, the transition between the convex portion and the concave portion is smooth.

By adopting the above technical scheme, here, it can be understood that the convex part and the concave part are adjacent to each other, and the first pulley slides over the convex part and the concave part in turn when the cam rotates, so that smooth transition is formed between the convex part and the concave part, and the smoothness of the cam during rotation is improved.

In one embodiment, the housing is an integral die cast.

By adopting the technical scheme, the production efficiency of the three-roller brake movement is improved, and the durability of the three-roller brake movement is improved.

In a second aspect, a three-roller brake is provided, including a brake base, a three-roller structure and the three-roller brake core described above, the three-roller brake core is disposed in the brake base, and the three-roller structure is connected with the three-roller brake core.

By adopting the technical scheme, on the basis of having the advantage of the three-roller brake core, the three-roller brake of the embodiment also has the advantage of good use experience.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of a three-roller shutter according to an embodiment of the present utility model;

fig. 2 is a perspective view of a three-roller brake core according to an embodiment of the present utility model;

FIG. 3 is an exploded view of a three-roller shutter movement provided by an embodiment of the present utility model;

FIG. 4 is a perspective view of a spindle assembly according to an embodiment of the present utility model;

FIG. 5 is a perspective view of another view of a damping assembly provided in accordance with an embodiment of the present utility model;

fig. 6 is a perspective view of another view of the spacing assembly according to an embodiment of the present utility model.

The reference numerals in the drawings are as follows:

1. a base; 2. a spindle assembly; 3. a damping assembly; 4. a three-roller structure; 5. a limit component;

11. a through hole; 12. a nut; 21. a first shaft body; 22. a cam; 31. a second shaft body; 32. a first arm body; 33. a damping member; 34. a first pulley; 35. a second pulley; 51. a third shaft body; 52. a second arm body; 53. an elastic member; 54. a third pulley;

211. a first shaft end; 212. a second axial end; 221. a convex portion; 222. a concave portion; 321. a first arm end; 322. a second arm end; 331. a screw; 332. a push head; 333. a push rod;

3311. a groove; 3321. and a chamfering part.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected or indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing the utility model based on the orientation or positional relationship shown in the drawings, and are not to be construed as limiting the utility model, as the indicating device or element must have a particular orientation, be constructed and operated in a particular orientation.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating relative importance or indicating the number of technical features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The following describes in more detail the specific implementation of the present utility model in connection with specific embodiments:

as shown in fig. 1 to 3, a three-roller brake core provided in an embodiment of the present utility model includes: the device comprises a machine base 1, a rotating shaft assembly 2 and a damping assembly 3;

wherein, the machine base 1 is provided with a through hole 11; here, it can be understood that the housing 1 serves to support the rotation shaft assembly 2 and the damping assembly 3;

referring to fig. 4, the rotating shaft assembly 2 includes a first shaft body 21 and a cam 22, the first shaft body 21 is in clearance fit with the through hole 11, the first shaft body 21 can rotate around the shaft, the first shaft body 21 is exposed out of the through hole 11 and is located at one end of the stand 1 and is a first shaft end 211 for connecting with the three-roller structure 4, and the first shaft body 21 is exposed out of the through hole 11 and is located at the other end of the stand 1 and is located at a second shaft end 212; the cam 22 is provided on the second shaft end 212 and coaxial with the first shaft body 21, and the cam 22 is formed with three protrusions 221 and a recess 222 formed between two adjacent protrusions 221 in order around the axis of the first shaft body 21; here, it can be understood that the rotating shaft assembly 2 is used for being connected with the three-roller structure 4, and enables the three-roller structure 4 to rotate relative to the stand 1, so as to realize the passing function of the three-roller structure 4; specifically, the spindle assembly 2 includes a first shaft body 21 and a cam 22, the first shaft body 21 is disposed in the through hole 11 in a penetrating manner, the diameter of the first shaft body 21 is slightly smaller than the aperture of the through hole 11, so that the first shaft body 21 can be in clearance fit with the through hole 11, thereby enabling the first shaft body 21 to freely rotate around the shaft in the through hole 11, and furthermore, the first shaft body 21 has opposite ends, one of which is exposed to the through hole 11 and located at one side of the stand 1, the end being a first shaft end 211 for connection with the three-roller structure 4, the other end being exposed to the through hole 11 and located at the other side of the stand 1, the end being a second shaft end 212 for setting the cam 22; the cam 22 is coaxial with the first shaft body 21, the cam 22 is formed with three protrusions 221 and recesses 222 provided between the adjacent two protrusions 221, the three protrusions 221 are sequentially formed around the axis of the first shaft body 21, and the three recesses 222 are formed between the adjacent two protrusions 221 in one-to-one correspondence;

referring to fig. 5, the damping assembly 3 includes a second shaft body 31, a first arm body 32, a damping member 33 and a first pulley 34, the second shaft body 31 is disposed on the base 1, the first arm body 32 is connected with the second shaft body 31 and can rotate around the second shaft body 31, the first arm body 32 forms a first arm end 321 and a second arm end 322 which are opposite, the damping member 33 is disposed on the base 1 and is used for abutting with the first arm end 321, and the first pulley 34 is disposed on the second arm end 322 and abuts with the protrusion 221 under the pushing action of the damping member 33. Here, it can be understood that the damping assembly 3 is used to increase the resistance of the first shaft body 21 in rotation, thereby reducing the rotation speed of the first shaft body 21; specifically, the damping assembly 3 includes a second shaft 31 disposed on the base, a first arm 32 connected to the second shaft 31, the first arm 32 capable of rotating around the second shaft 31, the first arm 32 formed with a first arm end 321 and a second arm end 322 opposite to each other, the first arm end 321 and the second arm end 322 respectively located on two sides of the second shaft 31, a damping member 33 disposed on the base and used for abutting the first arm end 321, the damping member 33 used for providing resistance, the damping member 33 including but not limited to an elastic structure; the first pulley 34 is provided at the second arm end 322, and the first pulley 34 can be brought into contact with the boss 221 and slid relative to the cam 22.

The working principle of the three-roller brake core provided by the embodiment is as follows:

the three-roller brake core is arranged on the brake base 1, and then the three-roller body structure 4 is arranged on the three-roller brake core; when a passer rotates the three-roller structure 4, the three-roller structure 4 drives the first shaft body 21 to rotate, and then drives the cam 22 on the first shaft body 21 to rotate, so that the passing function of the three-roller structure 4 is realized; during the rotation of the three-roller structure 4, the damping member 33 of the damping assembly 3 abuts against the first arm end 321, so that the second arm end 322 on the first arm 32 moves towards the direction close to the cam 22, and the first pulley 34 on the second arm end 322 is driven to abut against the convex part 221 of the cam 22, and the pulley provides resistance to the convex part 221 when abutting against the convex part 221, so that the resistance of the first shaft 21 in rotation is increased, the rotation resistance of the three-roller structure 4 is increased, and the rotation speed of the three-roller structure 4 in rotation is reduced.

It should be further explained that, in order to increase the resistance when the three-roller structure 4 rotates and at the same time ensure that the three-roller structure 4 can smoothly rotate, the first pulley 34 is disposed on the second arm end 322 such that the first pulley 34 can slide relative to the cam 22.

By adopting the technical scheme, the rotation resistance of the three-roller structure 4 is increased, and the rotation speed of the three-roller structure 4 during rotation is reduced; thus, the possibility that the passing person is impacted by the three-roller structure 4 is reduced, and the passing experience is improved.

In one embodiment, the damping member 33 includes a screw 331 and a pushing head 332 disposed at an end of the screw 331 near the second arm end 322, where the pushing head 332 has elasticity and is used to abut against the second arm end 322, and the screw 331 is screwed with the base 1, so that the screw 331 can drive the pushing head 332 to move along a direction approaching or departing from the second arm end 322.

Here, it will be appreciated that the damping member 33 serves to provide resistance to rotation of the three-roller structure 4; specifically, the damping member 33 includes a screw 331 and a pushing head 332, where the pushing head 332 is disposed at an end of the screw 331 near the second arm end 322, so that the pushing head 332 can be pushed against the second arm end 322; the screw 331 is screwed with the stand 1, so that an operator can adjust the abutting force applied to the second arm end 322 by the abutting joint by adjusting the distance between the screw 331 and the second arm end 322, and further adjust the resistance when the cam 22 and the first shaft body 21 rotate, thereby adjusting the rotation resistance and the rotation speed of the three-roller structure 4.

By adopting the technical scheme, the rotation resistance and the rotation speed of the three-roller structure 4 are adjustable.

In one embodiment, the push head 332 is a silicone head. It can be appreciated that the pushing head 332 made of silicone has a certain elasticity and can provide a certain pushing force.

In one embodiment, the screw 331 is formed with a groove 3311 near the end of the second arm end 322, the pushing head 332 is formed with a pushing rod 333 inserted into the groove 3311, and the pushing rod 333 is elastically connected with the bottom of the groove 3311.

Here, it can be appreciated that the push head 332 is elastically connected with the screw 331; specifically, the pushing head 332 is formed with a pushing rod 333 inserted into the groove 3311, and an elastic structure is disposed between the pushing rod 333 and the bottom of the groove 3311, so that the pushing rod 333 is elastically connected to the bottom of the groove 3311, and thus the pushing head 332 can always be abutted to the second arm end 322 under the action of elastic force.

By adopting the above technical scheme, the elastic connection between the thrust head 332 and the screw 331 is realized.

In one embodiment, the push head 332 is provided with a chamfer 3321 that mates with the second arm end 322.

Here, it can be understood that the abutment head 332 is configured to abut against the second arm end 322, and simultaneously, a slight relative movement is generated between the abutment head 332 and the second arm end 322, and by providing the chamfer portion 3321 on the abutment head 332, a sharp corner is avoided from being formed on the abutment head 332, so that the abutment head 332 is prevented from being jammed when the abutment head 332 and the second arm end 322 relatively move.

By adopting the above technical solution, the smoothness of the cooperation between the pushing head 332 and the second arm end 322 is improved.

In one embodiment, the base 1 is provided with a nut 12, and the screw 331 is in threaded engagement with the nut 12.

By adopting the technical scheme, the threaded connection between the screw 331 and the machine base 1 is realized.

In one embodiment, the damping assembly 3 further includes a second pulley 35, the second pulley 35 being disposed on the second arm end 322 and abutting the thrust head 332.

Here, it will be understood that the pushing head 332 and the second arm end 322 move relatively, so that the second pulley 35 is disposed on the second arm end 322 to make the second pulley 35 contact with the pushing head 332, so as to improve the smoothness of the fit between the second arm end 322 and the pushing head 332.

By adopting the technical scheme, the pushing head 332 is well matched with the second arm end 322.

Referring to fig. 6, in an embodiment, the three-roller brake movement further includes a limiting assembly 5, the limiting assembly 5 includes a third shaft 51, a second arm 52, an elastic member 53 and a third pulley 54, the third shaft 51 is disposed on the base 1, the second arm 52 is connected with the third shaft 51 and can rotate around the third shaft 51, the elastic member 53 is connected with the second arm 52 and the base 1, and the third pulley 54 is disposed on the base 1 and abuts against the recess 222 under the elastic force of the elastic member 53.

Here, it can be understood that the limiting assembly 5 is used to limit the cam 22 to a preset position; specifically, for each passing person, the three-roller structure 4 drives the cam 22 to rotate by a preset angle, and the limiting component 5 is used for limiting the cam 22 in the preset angle; in detail, the elastic force of the elastic member 53 drives the second arm 52 to rotate, the second arm 52 drives the third pulley 54 to rotate around the third shaft 51 to abut against the cam 22, and when the third pulley 54 abuts against the recess 222, the third pulley 54 limits the cam 22 at a preset angle.

By adopting the technical scheme, the rotation ordering of the three-roller structure 4 is realized.

In one embodiment, the transition between the male 221 and female 222 portions is smooth.

By adopting the above technical solution, it can be understood here that the convex portion 221 and the concave portion 222 are adjacent to each other, and the first pulley 34 slides over the convex portion 221 and the concave portion 222 in turn when the cam 22 rotates, so that the convex portion 221 and the concave portion 222 are smoothly transited, and the smoothness of the rotation of the cam 22 is improved.

In one embodiment, the housing 1 is an integral die cast.

Here, it can be appreciated that the integral die casting process can improve the mechanical strength of the housing 1 and also improve the machining efficiency, reducing the number of parts.

In a second aspect, a three-roller brake is provided, including a brake base, a three-roller body structure 4 and the three-roller brake core, the three-roller brake core is arranged in the brake base, and the three-roller body structure 4 is connected with the three-roller brake core.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A three-roller brake core, characterized by comprising:

the machine base is provided with a through hole;

2. A three roller brake movement according to claim 1, wherein the damping member comprises a screw and a push head provided at an end of the screw adjacent to the second arm end, the push head being resilient and adapted to abut the second arm end, the screw being threadably engaged with the housing such that the screw is able to move the push head in a direction towards or away from the second arm end.

3. The three-roller shutter movement of claim 2, wherein a groove is formed at one end of the screw adjacent to the second arm end, and the push head is formed with a push rod inserted into the groove, and the push rod is elastically connected to a bottom of the groove.

4. A three roller shutter movement according to claim 2, wherein the thrust head is provided with a chamfer cooperating with the second arm end.

5. A three roller shutter movement according to claim 2, wherein the housing is provided with a nut, the screw being in threaded engagement with the nut.

6. The three roller shutter cartridge of claim 2, wherein the damping assembly further comprises a second pulley disposed on the second arm end and abutting the thrust head.

7. A three-roller brake movement according to any one of claims 1 to 6, further comprising a limit assembly comprising a third shaft, a second arm, an elastic member and a third pulley, the third shaft being provided on the housing, the second arm being connected to the third shaft and being rotatable about the third shaft, the elastic member being connected to the second arm and the housing, the third pulley being provided on the housing and being in abutment with the recess under the action of the elastic force of the elastic member.

8. A three roller shutter movement according to claim 7, wherein the transition between the male and female portions is smooth.

9. A three roller shutter cartridge according to any one of claims 1 to 6, wherein the housing is an integral die cast.

10. A three-roller brake, characterized by comprising a brake base, a three-roller structure and the three-roller brake core according to any one of claims 1 to 9, wherein the three-roller brake core is arranged in the brake base, and the three-roller structure is connected with the three-roller brake core.