Brake trundle

Abstract

The utility model discloses a brake trundle. The brake trundle comprises a connecting seat, a roller and a brake assembly, and the roller is rotationally connected to the connecting seat. The brake assembly comprises a brake plate and a control plate, the brake plate is slidably connected to the connecting base, a brake pad is arranged at the upper end of the brake plate, the brake plate is provided with a first limiting part and a second limiting part, the control plate is eccentrically arranged and rotationally connected to the connecting base, and the control plate abuts against the first limiting part and the second limiting part; when the control panel rotates in the first direction, the distance between the rotation center of the control panel and the first limiting part is gradually increased, and the control panel pushes the brake plate to move upwards to enable the brake pad to be away from the roller upwards. When the control panel rotates in the second direction, the distance between the rotating center of the control panel and the second limiting part is gradually increased, and the control panel pushes the braking vane to move downwards so that the brake pad can be downwards close to and attached to the rolling wheel. The brake trundle is simple in structure and easy to assemble, does not need a spring for resetting, prevents spring metal fatigue from influencing the brake effect, and is long in service life.

Description

Technical Field

[0001] This utility model relates to the field of caster technology, and in particular to a brake caster. Background Technology

[0002] Casters are typically attached to a mounting bracket on the bottom of furniture or equipment. Casters usually have a braking mechanism; when the furniture or equipment is moved to a designated position, the braking mechanism activates, locking the rollers on the caster and preventing them from rolling further. Modern casters with brakes generally use springs to control the brake pads' return to their original position. However, springs are prone to damage after repeated use, leading to unreliable braking, and assembling springs into casters is also quite difficult. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in related technologies. To this end, this utility model proposes a brake caster.

[0004] This utility model embodiment provides a brake caster, the brake caster comprising:

[0005] Connector;

[0006] The roller is rotatably connected to the connecting seat;

[0007] A braking assembly includes a brake plate and a control plate. The brake plate is slidably connected to the connecting seat in a vertical direction. A brake pad is provided at the upper end of the brake plate and is located above the roller. The brake plate has a first limiting part and a second limiting part, with the first limiting part located above the second limiting part. The control plate is eccentrically arranged and rotatably connected to the connecting seat. The control plate is located between the first limiting part and the second limiting part and abuts against the first limiting part and the second limiting part, respectively.

[0008] When the control plate rotates in the first direction, the distance between the rotation center of the control plate and the first limiting part gradually increases, and the control plate pushes the brake plate to move upward, causing the brake pad to move upward away from the roller;

[0009] When the control plate rotates in the second direction, the distance between the rotation center of the control plate and the second limiting part gradually increases, and the control plate pushes the brake plate downward so that the brake pad moves downward and comes into contact with the roller.

[0010] According to some embodiments of the present invention, the brake caster further includes a rotating shaft, the connecting seat is provided with a first through hole, the rotating shaft passes through both the roller and the first through hole, the roller and the rotating shaft are coaxially arranged, the rotating shaft is rotatably connected to the roller, and the rotating shaft is fixedly connected to the connecting seat.

[0011] According to some embodiments of the present invention, the rotating shaft passes through the control plate, the control plate is rotatable around the axis of the rotating shaft, the brake plate is provided with a first elongated through hole extending in the vertical direction, and the rotating shaft passes through the first elongated through hole.

[0012] According to some embodiments of the present invention, the connecting seat is provided with a second elongated through hole extending in the vertical direction, and the brake plate is provided with a guide portion, which is inserted into the second elongated through hole.

[0013] According to some embodiments of the present invention, the brake caster further includes a first pedal and a second pedal, wherein the first pedal is fixedly connected to the front side of the control panel and the second pedal is fixedly connected to the rear side of the control panel.

[0014] According to some embodiments of the present invention, the outer peripheral wall of the control plate includes an arc-shaped wall, the arc-shaped wall abuts against the lower end of the first limiting part, and the distance between the arc-shaped wall and the rotation center of the control plate gradually increases along the second direction.

[0015] According to some embodiments of the present invention, the outer peripheral wall of the control plate includes a first wall and a second wall. The first wall is located in front of the second wall. The distance between the first wall and the rotation center of the control plate is greater than the distance between the second wall and the rotation center of the control plate. When the control plate rotates in the second direction, the second limiting part gradually abuts against the first wall, and the first wall pushes the second limiting part to move downward.

[0016] According to some embodiments of the present invention, the rear end of the first wall is connected to the front end of the second wall, and the included angle between the first wall and the second wall is an obtuse angle.

[0017] According to some embodiments of the present invention, a connecting plate is rotatably connected to the upper end of the connecting seat, and the connecting plate is used to fix and install it to the bottom of the furniture.

[0018] According to some embodiments of the present invention, the connecting plate is provided with a plurality of second through holes, which are distributed circumferentially along the connecting plate, and the second through holes are used for connection with bolts.

[0019] The brake caster according to the embodiments of this utility model has at least the following technical effects:

[0020] 1. When braking is required, rotate the control plate in the second direction. The control plate abuts against the second limiting part and pushes the second limiting part downward, thereby causing the brake plate and brake pad to move downward. The lower end face of the brake pad is in contact with the outer peripheral wall of the roller, thereby braking the roller. When braking is not required, rotate the control plate in the first direction. The control plate disengages from the second limiting part and pushes the first limiting part upward, thereby causing the brake plate and brake pad to move upward, and the brake pad disengages from the roller.

[0021] 2. This brake caster has a simple structure and is easy to assemble. It does not require a spring for reset, thus avoiding metal fatigue of the spring and affecting the braking effect, and has a long service life.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is a schematic diagram of the structure of the brake caster according to some embodiments of the present invention;

[0025] Figure 2 This is a schematic diagram of the brake caster from another angle of some embodiments of this utility model;

[0026] Figure 3 This is an exploded view of the brake caster of some embodiments of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the control board in some embodiments of this utility model.

[0028] Icon labels:

[0029] Connecting seat 100; roller 101; brake assembly 110; first through hole 120; second elongated through hole 130; connecting plate 140; second through hole 141;

[0030] Brake plate 200; brake pad 201; first limiting part 210; second limiting part 220; rotating shaft 230; first elongated through hole 240; guide part 250;

[0031] Control panel 300; curved wall 301; first wall 310; second wall 320;

[0032] First pedal 410; second pedal 420. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0036] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0037] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0038] According to some embodiments of this utility model, refer to Figures 1 to 4 The brake caster includes a connecting base 100, a roller 101, and a brake assembly 110. The roller 101 is rotatably connected to the connecting base 100, and the axis of the roller 101 is in the left-right direction. The brake assembly 110 includes a brake plate 200 and a control plate 300. The brake plate 200 is slidably connected to the connecting base 100 in the up-down direction. A brake pad 201 is provided at the upper end of the brake plate 200 and is located above the roller 101. The up-down sliding of the brake plate 200 can cause the brake pad 201 to move closer to or away from the roller 101. The brake plate 200 has a first limiting part 210 and a second limiting part 220. The first limiting part 210 is located above the second limiting part 220. The control plate 300 is eccentrically arranged and rotatably connected to the connecting base 100, that is, the rotation center of the control plate 300 does not coincide with the middle of the control plate 300. The control panel 300 is located between the first limiting part 210 and the second limiting part 220, and the control panel 300 abuts against the first limiting part 210 and the second limiting part 220 respectively.

[0039] When the control plate 300 rotates in the first direction, the distance between the rotation center of the control plate 300 and the first limiting part 210 gradually increases, while the distance between the rotation center of the control plate 300 and the second limiting part 220 gradually decreases. The control plate 300 pushes the brake plate 200 to move upward, so that the brake pad 201 moves upward away from the roller 101.

[0040] When the control plate 300 rotates in the second direction, the distance between the rotation center of the control plate 300 and the second limiting part 220 gradually increases, while the distance between the rotation center of the control plate 300 and the first limiting part 210 gradually decreases. The control plate 300 pushes the brake plate 200 to move downward, causing the brake pad 201 to move downward and come into contact with the roller 101, and the brake pad 201 brakes the roller 101.

[0041] In this embodiment, the first direction is a counterclockwise direction from right to left, and the second direction is a clockwise direction from right to left.

[0042] Understandably, when braking is required, the control plate 300 is rotated in the second direction, causing it to abut against the second limiting part 220 and push it downwards. This causes the brake plate 200 and brake pad 201 to move downwards, with the lower end face of the brake pad 201 adhering to the outer peripheral wall of the roller 101, thus braking the roller 101. When braking is not required, the control plate 300 is rotated in the first direction, disengaging from the second limiting part 220 and pushing the first limiting part 210 upwards. This causes the brake plate 200 and brake pad 201 to move upwards, disengaging the brake pad 201 from the roller 101.

[0043] This brake caster has a simple structure and is easy to assemble. It does not require a spring for reset, thus avoiding metal fatigue of the spring that could affect the braking effect, and has a long service life.

[0044] According to some embodiments of this utility model, refer to Figures 1 to 3 The brake caster also includes a rotating shaft 230, the axis of which is oriented left and right. The connecting seat 100 is provided with a first through hole 120. The rotating shaft 230 passes through both the roller 101 and the first through hole 120. The roller 101 and the rotating shaft 230 are coaxially arranged and rotatably connected. The rotating shaft 230 is fixedly connected to the connecting seat 100. The roller 101 can rotate around the axis of the rotating shaft 230 to achieve rotatable connection with the connecting seat 100.

[0045] Furthermore, refer to Figures 1 to 3The rotating shaft 230 passes through the control plate 300, and the control plate 300 can rotate around the axis of the rotating shaft 230 to achieve a rotatable connection with the connecting seat 100. The brake plate 200 is provided with a first elongated through hole 240 extending in the vertical direction. The rotating shaft 230 passes through the first elongated through hole 240. When the brake plate 200 slides relative to the connecting seat 100 in the vertical direction, the rotating shaft 230 moves relative to the brake plate 200 in the extending direction of the first elongated through hole 240, thereby preventing the rotating shaft 230 and the brake plate 200 from jamming together.

[0046] According to some embodiments of this utility model, refer to Figure 3 The connecting seat 100 has a second elongated through hole 130 extending in the vertical direction, and the brake plate 200 has a guide portion 250. The guide portion 250 is inserted into the second elongated through hole 130. When the brake plate 200 slides relative to the connecting seat 100 in the vertical direction, the guide portion 250 slides along the extending direction of the second elongated through hole 130, thereby guiding the movement of the brake plate 200. Furthermore, the cooperation between the guide portion 250 and the rotating shaft 230 can restrict the movement of the brake plate 200 and prevent the brake plate 200 from deviating from its position during movement.

[0047] According to some embodiments of this utility model, the brake caster further includes a first pedal 410 and a second pedal 420. The first pedal 410 is fixedly connected to the front side of the control plate 300, and the second pedal 420 is fixedly connected to the rear side of the control plate 300. This allows the user to rotate the control plate 300 by stepping on the first pedal 410 or the second pedal 420, thereby achieving the action of braking or releasing the brake.

[0048] According to some embodiments of this utility model, refer to Figure 4 The outer peripheral wall of the control plate 300 includes an arc-shaped wall 301, which abuts against the lower end of the first limiting part 210. The distance between the arc-shaped wall 301 and the rotation center of the control plate 300 gradually increases along the second direction, that is, gradually increases in the clockwise direction. The first limiting part 210 always abuts against the arc-shaped wall 301. The rotation of the control plate 300 can change the abutment position between the arc-shaped wall 301 and the first limiting part 210, thereby changing the distance between the first limiting part 210 and the rotation center of the control plate 300.

[0049] According to some embodiments of this utility model, refer to Figure 4The outer peripheral wall of the control plate 300 includes a first wall 310 and a second wall 320. The first wall 310 is located in front of the second wall 320, and the distance between the first wall 310 and the rotation center of the control plate 300 is greater than the distance between the second wall 320 and the rotation center of the control plate 300. When the control plate 300 rotates in the second direction, that is, when the control plate 300 rotates in the clockwise direction, the second limiting part 220 gradually comes into contact with the first wall 310. The first wall 310 pushes the second limiting part 220 to move downward. At the same time, the distance between the first limiting part 210 and the rotation center of the control plate 300 gradually decreases, thereby driving the brake plate 200 to move downward.

[0050] Preferred, refer to Figure 4 The rear end of the first wall 310 is connected to the front end of the second wall 320, and the included angle between the first wall 310 and the second wall 320 is θ, which is an obtuse angle. When the first wall 310 abuts against the second limiting part 220, the brake pad 201 of the brake plate 200 is in contact with the roller 101, the brake plate 200 is in a braking state, and the brake plate 200 and the control plate 300 achieve a small-angle self-locking to avoid external vibration causing brake instability. When braking is not required, the control plate 300 rotates counterclockwise to overcome the self-locking force, so that the first wall 310 no longer abuts against the second limiting part 220, and at the same time, the arc-shaped wall 301 lifts the first limiting part 210 upward, so that the brake pad 201 moves upward away from the roller 101. Furthermore, the connection between the rear end of the first wall 310 and the front end of the second wall 320 adopts a rounded corner design to facilitate a smooth transition between the second limiting part 220 abutting against the first wall 310 and the second wall 320.

[0051] Understandably, referring to Figure 2 and Figure 4 When the control plate 300 rotates clockwise, the distance between the first limiting part 210 and the rotation center of the control plate 300 gradually decreases, while the second limiting part 220 changes from abutting against the second wall 320 to abutting against the first wall 310, thereby increasing the distance between the second limiting part 220 and the rotation center of the control plate 300. The control plate 300 pushes the brake plate 200 to move downward, causing the brake pad 201 to move downward and approach and adhere to the roller 101, and the brake pad 201 brakes the roller 101.

[0052] According to some embodiments of this utility model, refer to Figure 1 and Figure 3A connecting plate 140 is rotatably connected to the upper end of the connecting base 100. The connecting plate 140 is used for fixed installation on the bottom of the furniture. The connecting plate 140 is provided with a plurality of second through holes 141, which are distributed circumferentially along the connecting plate 140. The second through holes 141 are used for bolt connection. The bolts pass through the second through holes 141 and are fixedly installed on the furniture, so that the connecting plate 140 and the furniture are fixedly connected, thereby realizing the rotatable connection between the connecting base 100 and the furniture.

[0053] In this specification, the reference to the term "some embodiments" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A brake caster, characterized in that, include: Connector (100); Roller (101) is rotatably connected to the connecting seat (100); A brake assembly (110) includes a brake plate (200) and a control plate (300). The brake plate (200) is slidably connected to the connecting seat (100) in the vertical direction. A brake pad (201) is provided at the upper end of the brake plate (200). The brake pad (201) is located above the roller (101). The brake plate (200) is provided with a first limiting part (210) and a second limiting part (220). The first limiting part (210) is located above the second limiting part (220). The control plate (300) is eccentrically arranged and rotatably connected to the connecting seat (100). The control plate (300) is located between the first limiting part (210) and the second limiting part (220). The control plate (300) abuts against the first limiting part (210) and the second limiting part (220) respectively. When the control plate (300) rotates in the first direction, the distance between the rotation center of the control plate (300) and the first limiting part (210) gradually increases, and the control plate (300) pushes the brake plate (200) to move upward, so that the brake pad (201) moves upward away from the roller (101); When the control plate (300) rotates in the second direction, the distance between the rotation center of the control plate (300) and the second limiting part (220) gradually increases, and the control plate (300) pushes the brake plate (200) to move downward, so that the brake pad (201) moves downward and comes into contact with the roller (101).

2. The brake caster according to claim 1, characterized in that, The brake caster also includes a pivot (230), the connecting seat (100) is provided with a first through hole (120), the pivot (230) passes through both the roller (101) and the first through hole (120), the roller (101) and the pivot (230) are coaxially arranged, the pivot (230) and the roller (101) are rotatably connected, and the pivot (230) and the connecting seat (100) are fixedly connected.

3. The brake caster according to claim 2, characterized in that, The rotating shaft (230) passes through the control plate (300), and the control plate (300) can rotate around the axis of the rotating shaft (230). The brake plate (200) is provided with a first elongated through hole (240) extending in the vertical direction, and the rotating shaft (230) passes through the first elongated through hole (240).

4. The brake caster according to claim 1, characterized in that, The connecting seat (100) is provided with a second elongated through hole (130) extending in the vertical direction, and the brake plate (200) is provided with a guide part (250), which is inserted into the second elongated through hole (130).

5. The brake caster according to claim 1, characterized in that, The brake caster also includes a first pedal (410) and a second pedal (420), the first pedal (410) being fixedly connected to the front side of the control panel (300), and the second pedal (420) being fixedly connected to the rear side of the control panel (300).

6. The brake caster according to claim 1, characterized in that, The outer peripheral wall of the control plate (300) includes an arc-shaped wall (301), which abuts against the lower end of the first limiting part (210), and the distance between the arc-shaped wall (301) and the rotation center of the control plate (300) gradually increases along the second direction.

7. The brake caster according to claim 1, characterized in that, The outer peripheral wall of the control plate (300) includes a first wall (310) and a second wall (320). The first wall (310) is located in front of the second wall (320). The distance between the first wall (310) and the rotation center of the control plate (300) is greater than the distance between the second wall (320) and the rotation center of the control plate (300). When the control plate (300) rotates in the second direction, the second limiting part (220) gradually abuts against the first wall (310), and the first wall (310) pushes the second limiting part (220) to move downward.

8. The brake caster according to claim 7, characterized in that, The rear end of the first wall (310) is connected to the front end of the second wall (320), and the included angle between the first wall (310) and the second wall (320) is an obtuse angle.

9. The brake caster according to claim 1, characterized in that, The upper end of the connecting seat (100) is rotatably connected to a connecting plate (140), which is used to fix the furniture to the bottom.

10. The brake caster according to claim 9, characterized in that, The connecting plate (140) is provided with a plurality of second through holes (141), which are distributed circumferentially along the connecting plate (140) and are used for connection with bolts.

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