CN212446958U

CN212446958U - Caster capable of braking

Info

Publication number: CN212446958U
Application number: CN202020928023.XU
Authority: CN
Inventors: 拉斐尔·奥尔特加·弗朗西斯; 潘志锐
Original assignee: Zhongshan Robby Hardware Products Co ltd
Current assignee: Zhongshan Robby Hardware Products Co ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-02-02
Anticipated expiration: 2030-05-27

Abstract

The utility model discloses a truckle that can brake, it includes truckle frame, wheel body, gear brake equipment and control assembly, and the wheel body rotates with the truckle frame to be connected, and gear brake equipment locates between truckle frame and the wheel body, and gear brake equipment can be to the wheel body braking, and the truckle frame is located in the control assembly activity, and control assembly can control the action of gear brake equipment in order to brake the wheel body. Through the structure, the gear braking device is arranged between the caster frame and the wheel body, and braking on the wheel body is completed under the control action of the control assembly, and the braking method does not need to act on the surface of the wheel body, so that damage to the surface of the wheel body is avoided, and the service life of the wheel body is prolonged.

Description

Caster capable of braking

Technical Field

The utility model relates to the technical field of transportation, in particular to truckle that can brake.

Background

In the market, some wheel bodies are pivoted with brake pads with braking function. When braking, the brake block needs to be forced to the surface of the wheel body to achieve the effect of braking the wheel body, and the method for braking the wheel body is easy to generate friction damage on the surface of the wheel body, so that the service life of the wheel body is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least, for this reason, the utility model provides a truckle that can brake can alleviate the damage that the wheel body surface received when being braked to increase the life of wheel body.

According to the utility model discloses a truckle that can brake, including truckle frame, wheel body, gear brake equipment and control assembly, the wheel body with the truckle frame rotates to be connected, gear brake equipment locates the truckle frame with between the wheel body, the control assembly activity is located the truckle frame, control assembly can control gear brake equipment moves in order to incite somebody to action wheel body braking.

According to the utility model discloses truckle that can brake has following beneficial effect at least: through the structure, the gear braking device is arranged between the caster frame and the wheel body, and braking on the wheel body is completed under the control action of the control assembly, and the braking method does not need to act on the surface of the wheel body, so that damage to the surface of the wheel body is avoided, and the service life of the wheel body is prolonged.

According to some embodiments of the utility model, gear brake equipment includes gear train and brake piece, the gear train includes input gear and output gear, input gear with the wheel body links firmly, input gear with the coaxial rotation of wheel body, output gear rotate connect in the truckle frame, brake piece slidable ground locates the truckle frame, brake piece has tooth portion, control assembly can drive brake piece removes so that tooth portion with output gear meshes.

According to some embodiments of the utility model, the control assembly is including rotating piece and slide bar, it rotationally locates to rotate the piece the truckle frame, the slide bar slidable locates the truckle frame, the one end of slide bar with the braking piece is connected, rotate the piece with the slide bar transmission is connected in order can driving the slide bar is followed the truckle frame slides from top to bottom, can make when sliding down the sliding bar the braking piece remove to incite somebody to action the tooth portion with output gear engagement's position.

According to the utility model discloses a some embodiments, the week side of rotating the piece is equipped with activity position and braking position, the other end of slide bar ends activity position, the fixed microscope carrier that is equipped with on the slide bar, the bottom surface of microscope carrier with be equipped with first elastic component between the truckle frame, can promote when rotating the piece and rotating the slide bar moves down.

According to the utility model discloses a some embodiments, the activity position is for being located rotate the first breach of week side of piece, the braking position is for being located rotate the second breach of week side of piece, the degree of depth of second breach is less than the degree of depth of first breach.

According to some embodiments of the present invention, the carrying platform is provided in two, two the carrying platform is arranged along the axial direction of the sliding rod, two the bottom surface of the carrying platform and the first elastic member is arranged between the caster frames.

According to some embodiments of the utility model, the protruding lug that forms of bottom lateral wall of slide bar, the brake piece has the logical groove of lining up from top to bottom, it is equipped with spacing platform to lead to the inslot, stretch into the bottom of slide bar lead to the groove, the lug is located the below of spacing platform.

According to some embodiments of the present invention, the brake device further comprises a second elastic member, wherein the second elastic member is disposed between the top surface of the brake member and the caster frame.

According to some embodiments of the utility model, the truckle frame includes wheel carrier, swing arm and a plurality of springy cushioning spare, the one end of swing arm with the wheel carrier rotates to be connected, the other end of swing arm with the wheel body rotates to be connected, and is a plurality of springy cushioning spare is located the wheel carrier with between the swing arm.

According to some embodiments of the utility model, the wheel carrier is equipped with guide slot and storage tank, the swing arm one end has the axial region, the axial region is rotationally located the storage tank, the swing arm the other end with guide slot sliding connection, the inner wall of storage tank is equipped with a plurality of first recesses along its circumference, the outer wall of axial region along its circumference be equipped with a plurality ofly with first recess complex second recess, a plurality of second recess and a plurality of first recess encloses into a plurality of accommodation chambers one-to-one, springy cushioning spare locates the accommodation chamber.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of an embodiment of a caster of the present invention;

FIG. 2 is a cross-sectional view of the caster shown in FIG. 1;

FIG. 3 is a cross-sectional view of the wheel frame shown in FIG. 1;

FIG. 4 is a partially exploded view of the brake and control structure shown in FIG. 2;

FIG. 5 is a partial exploded view of the caster shown in FIG. 1;

FIG. 6 is a partially exploded view of the caster shown in FIG. 1 with the caster body removed;

fig. 7 is a structural view of the swing arm shown in fig. 5.

Reference numerals: the caster frame 100, the caster frame 110, the guide groove 111, the receiving groove 112, the first groove 112A, the swing arm 120, the shaft portion 121, the second groove 121A, the elastic buffer 130, the wheel body 200, the gear braking device 300, the gear set 310, the input gear 311, the output gear 312, the braking piece 320, the tooth portion 321, the through groove 322, the limit table 322A, the control assembly 400, the rotating piece 410, the movable portion 411, the braking portion 412, the sliding rod 420, the carrying table 421, the bump 422, the first elastic piece 500, the second elastic piece 600, and the rubber block 700.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper and lower directions, is the orientation or positional relationship shown on the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore should not be construed as limiting the present invention.

In the present invention, unless explicitly defined otherwise, the terms "disposed," "mounted," "connected," and the like are to be understood in a broad sense, and for example, may be directly connected or indirectly connected through an intermediate; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be a mechanical connection; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above-mentioned words in the present invention can be reasonably determined by those skilled in the art in combination with the detailed contents of the technical solutions.

Referring to fig. 1 to 7, the embodiment of the present invention provides a caster capable of braking, which includes a caster frame 100, a caster body 200, a gear braking device 300 and a control assembly 400, wherein the caster body 200 is rotatably connected to the caster frame 100, the gear braking device 300 is disposed between the caster frame 100 and the caster body 200, the gear braking device 300 can brake the caster body 200, the control assembly 400 is movably disposed on the caster frame 100, and the control assembly 400 can control the gear braking device 300 to move so as to brake the caster body 200.

Specifically, referring to fig. 5, the gear braking device 300 includes a gear set 310 and a braking member 320, the gear set 310 includes an input gear 311 and an output gear 312, the input gear 311 is fixedly connected to the wheel body 200, the input gear 311 rotates coaxially with the wheel body 200, the output gear 312 is rotatably connected to the wheel frame 100, the braking member 320 is slidably disposed on the wheel frame 100, the braking member 320 has a tooth portion 321, and the control assembly 400 can drive the braking member 320 to move so that the tooth portion 321 is engaged with the output gear 312.

The control assembly 400 includes a rotating member 410 and a sliding rod 420, the rotating member 410 is rotatably disposed on the caster frame 100, the sliding rod 420 is slidably disposed on the caster frame 100, one end of the sliding rod 420 is connected to the braking member 320, the rotating member 410 is in transmission connection with the sliding rod 420 to drive the sliding rod 420 to slide up and down along the caster frame 100, and when the sliding rod 420 slides down, the braking member 320 can be moved to a position where the tooth portion 321 is engaged with the output gear 312.

In contrast, the rotating member 410 is provided with a movable position 411 and a braking position 412 on the periphery, the other end of the sliding rod 420 abuts against the movable position 411, the sliding rod 420 is fixedly provided with a carrying platform 421, a first elastic member 500 is arranged between the bottom surface of the carrying platform 421 and the caster frame 100, and the rotating member 410 can push the sliding rod 420 to move downwards when rotating. The first elastic member 500 provides an upward returning function to the slide bar 420.

In this embodiment, the movable portion 411 is a first notch located on the peripheral side of the rotating member 410, and the braking portion 412 is a second notch located on the peripheral side of the rotating member 410, and the depth of the second notch is smaller than the depth of the first notch.

Of course, the number of the stages 421 may be two, two stages 421 are arranged along the axial direction of the sliding rod 420, and the first elastic member 500 is disposed between the bottom surfaces of the two stages 421 and the caster frame 100.

It should be noted that when the sliding rod 420 is in the moving position 411, the wheel body 200 can rotate freely, whereas when the sliding rod 420 is in the braking position 412, the wheel body 200 cannot rotate freely, i.e. the wheel body 200 is braked.

Through the above structure, the rotating member 410 is rotated, the sliding rod 420 moves from the moving position 411 to the braking position 412, the braking member 320 slides towards the output gear 312, and the tooth portion 321 of the braking member is engaged with the output gear 312, so as to lock the output gear 312, and further lock the wheel body 200, such a braking device can effectively avoid the damage to the surface of the wheel body 200 caused during braking, and can prolong the service life of the wheel body 200.

In this embodiment, referring to fig. 2, a protrusion 422 is formed on a side wall of the bottom end of the sliding rod 420, the brake piece 320 has a through slot 322 running through from top to bottom, a position-limiting platform 322A is disposed in the through slot 322, the bottom end of the sliding rod 420 extends into the through slot 322, and the protrusion 422 is located below the position-limiting platform 322A. With the above structure, the sliding rod 420 slides downwards to temporarily disengage the protrusion 422 from the abutment with the limit stop 322A, but due to gravity, the brake 320 still moves downwards to cause the limit stop 322A to re-abut with the protrusion 422, and the brake 320 moves downwards to lock the wheel body 200.

In order to keep the limit stop 322A of the brake 320 in an abutting state with the projection 422 and increase the tightness of the device, the brake device further comprises a second elastic member 600, and the second elastic member 600 is arranged between the top surface of the brake 320 and the caster frame 100.

A guide structure capable of limiting a rotation angle of the rotation member 410 so that the slide rod 420 moves between the first notch and the second notch along a circumferential direction of the rotation member 410 is further included.

Specifically, the guide structure includes a guide groove and a fixed block, the rotating member 410 is provided with a guide groove along its circumference, the fixed block is fixedly connected with the caster frame 100, and the fixed block is disposed in the guide groove.

In some embodiments, the guiding structure may also be a guiding groove provided on the caster frame 100 and a fixed block provided on the cam.

Referring to fig. 3, 6 and 7, the caster frame 100 includes a wheel frame 110, a swing arm 120 and a plurality of elastic buffers 130, wherein one end of the swing arm 120 is rotatably connected to the wheel frame 110, the other end of the swing arm 120 is rotatably connected to the wheel body 200, and the plurality of elastic buffers 130 are disposed between the wheel frame 110 and the swing arm 120.

Specifically, the wheel carrier 110 is provided with a guide groove 111 and an accommodating groove 112, one end of the swing arm 120 is provided with a shaft portion 121, the shaft portion 121 is rotatably disposed in the accommodating groove 112, the other end of the swing arm 120 is slidably connected to the guide groove 111, the inner wall of the accommodating groove 112 is provided with a plurality of first grooves 112A along the circumferential direction thereof, the outer wall of the shaft portion 121 is provided with a plurality of second grooves 121A matched with the first grooves 112A along the circumferential direction thereof, the plurality of second grooves 121A and the plurality of first grooves 112A enclose a plurality of accommodating chambers in a one-to-one correspondence manner, and the elastic buffer 130 is disposed in the.

When the wheel body 200 bumps, the other end of the swing arm 120 is lifted upwards, the swing arm 120 swings around the axis of the accommodating groove 112, that is, the shaft portion 121 rotates in the accommodating groove 112, but because the elastic buffer 130 is arranged between the shaft portion 121 and the inner wall of the accommodating groove 112, the elastic buffer 130 is compressed and rebounded, so that the swing of the swing arm 120 is inhibited, and the wheel body 200 is rapidly restored to a stable state.

In this embodiment, the top of the guide groove 111 is further provided with a rubber block 700, and the rubber block 700 can reduce the impact of the other end of the swing arm 120 on the top of the guide groove 111 due to instantaneous lifting.

Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications and substitutions are included in the scope defined by the claims of the present application.

Claims

1. A caster capable of braking is characterized in that: comprises that

A caster frame;

the wheel body is rotationally connected with the caster frame;

the gear brake device is arranged between the caster frame and the wheel body;

the control component is movably arranged on the caster frame and can control the gear braking device to act so as to brake the wheel body.

2. A brakable caster as claimed in claim 1, wherein:

the gear brake device includes:

the gear set comprises an input gear and an output gear, the input gear is fixedly connected with the wheel body, the input gear and the wheel body coaxially rotate, and the output gear is rotationally connected to the caster frame;

the brake piece is arranged on the caster frame in a sliding mode and provided with a tooth part, and the control assembly can drive the brake piece to move so that the tooth part is meshed with the output gear.

3. A brakable caster according to claim 2, wherein:

the control assembly includes:

the rotating piece is rotatably arranged on the caster frame;

the sliding rod is slidably arranged on the caster frame, one end of the sliding rod is connected with the braking piece, the rotating piece is in transmission connection with the sliding rod so as to drive the sliding rod to slide up and down along the caster frame, and the sliding rod can enable the braking piece to move to a position where the tooth part is meshed with the output gear when sliding downwards.

4. A brakable caster according to claim 3, wherein:

the side of the rotating part is provided with a movable position and a braking position, the other end of the sliding rod abuts against the movable position, the sliding rod is fixedly provided with a carrying platform, a first elastic part is arranged between the bottom surface of the carrying platform and the caster frame, and the rotating part can push the sliding rod to move downwards when rotating.

5. A braked castor according to claim 4, in which:

the activity position is located the first breach of week side of rotating the piece, the braking position is located the second breach of week side of rotating the piece, the degree of depth of second breach is less than the degree of depth of first breach.

6. A braked castor according to claim 4, in which:

the number of the carrying platforms is two, the two carrying platforms are arranged along the axial direction of the sliding rod, and the first elastic piece is arranged between the bottom surfaces of the two carrying platforms and the caster frame.

7. A brakable caster according to claim 3, wherein:

the bottom side wall of the sliding rod protrudes to form a bump, the brake piece is provided with a through groove which is communicated up and down, a limiting table is arranged in the through groove, the bottom end of the sliding rod extends into the through groove, and the bump is located below the limiting table.

8. The caster with brake as claimed in claim 7, wherein:

the brake device further comprises a second elastic piece, and the second elastic piece is arranged between the top surface of the brake piece and the caster frame.

9. A brakable caster as claimed in claim 1, wherein:

the caster frame includes:

a wheel carrier;

one end of the swing arm is rotatably connected with the wheel carrier, and the other end of the swing arm is rotatably connected with the wheel body;

and the elastic buffer parts are arranged between the wheel carrier and the swing arm.

10. A brakable caster as claimed in claim 9, wherein:

the wheel carrier is equipped with guide slot and storage tank, the swing arm the one end has the axial region, the axial region is rotationally located the storage tank, the swing arm the other end with guide slot sliding connection, the inner wall of storage tank is equipped with a plurality of first recesses along its circumference, the outer wall of axial region along its circumference be equipped with a plurality ofly with first recess complex second recess, it is a plurality of second recess and a plurality of first recess one-to-one encloses into a plurality of accommodation chambers, elastic buffer locates the accommodation chamber.