A braking device

Abstract

This invention relates to the field of brake structure technology and discloses a brake device, including a first brake pedal, a second brake pedal, a fixed rod, a linkage rod, a first connecting member, a second connecting member, a reset member, and a brake. The fixed rod is fixed to the bottom frame. The first brake pedal is connected to the linkage rod through a first transmission assembly, and the second brake pedal is connected to the linkage rod through a second transmission assembly. The first connecting member is rotatably connected to the linkage rod, the first connecting member is rotatably connected to the fixed rod, and the first connecting member is rotatably connected to the second connecting member. The second connecting member has a connecting rod passing through a first guide hole in the fixed rod. The connecting rod is connected to the brake, and the reset member is connected to the brake. This invention enables braking from both the front and rear sides of the equipment or trolley by pressing down the first and second brake pedals respectively, while ensuring that the first and second brake pedals do not interfere with each other during braking, facilitating single-person operation.

Description

Technical Field

[0001] This invention relates to the field of brake structure technology, and in particular to a brake device. Background Technology

[0002] For ease of movement, casters are installed at the bottom of the trolley or equipment for pushing. When the trolley or equipment stops, the casters need to be braked to secure it. However, the brake pedal is usually located on the same side of the trolley or equipment (such as the rear), while the user pushes the trolley or equipment from the opposite side (such as the front). When a stop is needed, the user has to walk around to the side with the brake pedal to step on it. During this process, the trolley or equipment is prone to movement, posing a significant safety hazard. Summary of the Invention

[0003] The purpose of this invention is to provide a braking device that enables braking of the caster to be braked by pressing down the first brake pedal and the second brake pedal respectively. It can brake from both the front and rear sides of the equipment or trolley, and the first brake pedal and the second brake pedal do not interfere with each other, making it convenient for single-person operation.

[0004] To achieve the above objectives, the present invention provides a braking device applied to equipment equipped with casters. The equipment has a bottom frame with casters on the bottom. The braking device includes a first brake pedal, a second brake pedal, a first transmission assembly, a second transmission assembly, a fixed rod, a linkage rod, a first connector, a second connector, a reset member, and a brake. The fixed rod is fixedly connected to the bottom frame along the length of the frame. The first brake pedal is connected to a first end of the linkage rod via the first transmission assembly. The second brake pedal is connected to a second end of the linkage rod via the second transmission assembly. The linkage rod is parallel to the fixed rod. A first end of the first connector is rotatably connected to the linkage rod. A second end of the first connector is rotatably connected to the fixed rod. A third end of the first connector is rotatably connected to the first end of the second connector. The fixed rod has a first guide hole along its length. The second end of the second connector has a connecting rod passing through the first guide hole. The connecting rod is connected to the brake. The reset member is disposed on the bottom frame and connected to the brake.

[0005] When the first brake pedal is pressed down, the first transmission assembly drives the linkage rod to move horizontally toward the side closer to the caster to be braked, and drives the connecting rod to move from the first end of the first guide hole to the second end of the first guide hole, so that the brake is pressed against the caster to be braked;

[0006] When the second brake pedal is pressed down, the second transmission assembly drives the linkage rod to move horizontally toward the side closer to the caster to be braked, and drives the first connector to move the connecting rod from the first end of the first guide hole to the second end of the first guide hole, so that the brake presses against the caster to be braked;

[0007] When the first brake pedal and the second brake pedal are released, the reset member moves the brake away from the caster to be braked, and the brake moves the connecting rod from the second end of the first guide hole to the first end of the first guide hole, thereby moving the first connecting member to move the linkage rod horizontally toward the side away from the caster to be braked.

[0008] As a preferred embodiment of the present invention, the first transmission assembly includes a first fixed frame and a first connecting frame. The lower part of the first fixed frame is fixed to the fixed rod, and the first brake pedal is fixed to the first connecting frame. The lower part of the first connecting frame is provided with a vertically arranged second guide hole. The first end of the linkage rod is provided with a first limiting part that slides with the second guide hole. The upper end of the first connecting frame is rotatably connected to the upper end of the first fixed frame, and the position of the upper end of the first fixed frame is higher than the highest position of the linkage rod. When the first brake pedal is pressed down, the first limiting part is located at the lower end of the second guide hole.

[0009] As a preferred embodiment of the present invention, the second transmission assembly includes a second fixed frame, a second connecting frame, and a third connecting frame. The second fixed frame is fixed on the fixed rod, and the second brake pedal is fixed on the second connecting frame. The lower end of the second connecting frame is rotatably connected to the second fixed frame. The upper part of the second connecting frame has a vertically arranged third guide hole, the lowest point of which is higher than the highest point of the linkage rod. The lower part of the third connecting frame is fixed on the second end of the linkage rod. The upper part of the third connecting frame has a second limiting part that slides with the third guide hole. When the second brake pedal is pressed down, the second limiting part is located at the lower end of the third guide hole.

[0010] As a preferred embodiment of the present invention, a plurality of third connecting members are provided at intervals along the length direction of the fixed rod, the first end of the third connecting member is rotatably connected to the fixed rod, and the second end of the third connecting member is rotatably connected to the linkage rod.

[0011] As a preferred embodiment of the present invention, at least one third connector is provided on the front and rear sides of the third connector respectively.

[0012] In a preferred embodiment of the present invention, the reset component includes a spring, a drive plate, and a swing arm plate. The upper end of the drive plate is provided with a fourth guide hole that rotatably engages with the connecting rod. The lower end of the drive plate is fixedly connected to a drive rod. The upper end of the swing arm plate is rotatably connected to the bottom frame, and the lower end of the swing arm plate is fixedly connected to the drive rod. The first end of the spring is connected to the swing arm plate, and the second end of the spring is connected to the bottom frame. The brake is mounted on the drive rod.

[0013] As a preferred embodiment of the present invention, both the reset member and the brake are provided in twos; the two reset members are symmetrically arranged on the left and right sides of the linkage rod.

[0014] As a preferred embodiment of the present invention, the fixed rod has a U-shaped cross-section, the linkage rod has an inverted U-shaped cross-section, and the linkage rod is nested in the inner cavity of the fixed rod; the cross-sections of the first connecting member and the second connecting member are both U-shaped, and the first connecting member and the second connecting member are both disposed in the cavity formed by the linkage rod and the fixed rod.

[0015] Compared with the prior art, the braking device of this invention has the following advantages:

[0016] This invention enables the linkage rod to move synchronously when both the first and second brake pedals are pressed, thereby braking the caster to be braked. It can brake from both the front and rear sides of the equipment or trolley, and the first and second brake pedals do not interfere with each other. The braking device can be installed on existing equipment without occupying separate installation space. It can be operated by a single person, is safe and reliable, and effectively reduces equipment and labor costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0018] Figure 1 This is a perspective view of a braking device provided by the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of a braking device provided by the present invention;

[0020] Figure 3 This is a diagram illustrating the braking principle of the first brake pedal;

[0021] Figure 4 This is a diagram illustrating the braking principle of the second brake pedal;

[0022] Figure 5 This is a structural schematic diagram of the first connector;

[0023] In the diagram, 1 is the first brake pedal; 2 is the second brake pedal; 3 is the fixing rod; 31 is the first guide hole; 4 is the linkage rod; 41 is the first limiting part; 51 is the first connecting piece; 52 is the second connecting piece; 53 is the third connecting piece; 54 is the connecting rod; 6 is the reset piece; 61 is the spring; 62 is the drive plate; 621 is the fourth guide hole; 63 is the swing arm plate; 64 is the drive rod; 7 is the brake; 71 is the caster to be braked; 8 is the first transmission assembly; 81 is the first fixing frame; 82 is the first connecting frame; 821 is the second guide hole; 9 is the second transmission assembly; 91 is the second fixing frame; 92 is the second connecting frame; 921 is the third guide hole; 93 is the third connecting frame; and 931 is the second limiting part. Detailed Implementation

[0024] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0025] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention.

[0026] like Figures 1-5 As shown, a preferred embodiment of the present invention provides a braking device applied to a device equipped with casters. The device has a base frame at its bottom, and the base frame is equipped with casters. The braking device comprises a first brake pedal 1, a second brake pedal 2, a first transmission assembly 8, a second transmission assembly 9, a fixing rod 3, a linkage rod 4, a first connecting member 51, a second connecting member 52, a reset member 6, and a brake 7. The fixing rod 3 is fixedly connected to the base frame along the length of the frame. The first brake pedal 1 is connected to the first end of the linkage rod 4 via the first transmission assembly 8, and the second brake pedal 2 is connected to the linkage rod via the second transmission assembly 9. The second end of the linkage rod 4 is connected to the second end of the linkage rod 4, which is parallel to the fixed rod 3. The first end of the first connecting member 51 is rotatably connected to the linkage rod 4, the second end of the first connecting member 51 is rotatably connected to the fixed rod 3, and the third end of the first connecting member 51 is rotatably connected to the first end of the second connecting member 52. The fixed rod 3 has a first guide hole 31 arranged along its length direction. The second end of the second connecting member 52 has a connecting rod 54 passing through the first guide hole 31. The connecting rod 54 is connected to the brake 7. The reset member 6 is arranged on the bottom frame and is connected to the brake 7.

[0027] When the first brake pedal 1 is pressed down, the first transmission assembly 8 drives the linkage rod 4 to move horizontally toward the side close to the caster 71 to be braked, and drives the connecting rod 54 to move from the first end of the first guide hole 31 to the second end of the first guide hole 31, so that the brake 7 presses against the caster 71 to be braked.

[0028] When the second brake pedal 2 is pressed down, the second transmission component 9 drives the linkage rod 4 to move horizontally toward the side closer to the caster 71 to be braked, and drives the first connecting member 51 to move the connecting rod 54 from the first end of the first guide hole 31 to the second end of the first guide hole 31, so that the brake 7 presses against the caster 71 to be braked.

[0029] When the first brake pedal 1 and the second brake pedal 2 are released, the reset member 6 drives the brake 7 away from the caster 71 to be braked, and the brake 7 drives the connecting rod 54 from the second end of the first guide hole 31 to the first end of the first guide hole 31, driving the first connecting member 51 to drive the linkage rod 4 to move horizontally toward the side away from the caster 71 to be braked.

[0030] Thus, this invention allows the linkage rod 4 to move synchronously when both the first brake pedal 1 and the second brake pedal 2 are pressed, thereby braking the caster 71. Braking can be applied to both the front and rear sides of the equipment or trolley, and the first brake pedal 1 and the second brake pedal 2 do not interfere with each other during braking. The braking device can be retrofitted to existing equipment without occupying separate installation space, can be operated by a single person, is safe and reliable, and effectively reduces equipment and labor costs. It ensures that the caster can be braked when either the first brake pedal 1 or the second brake pedal 2 is pressed down, or when both brake pedals are pressed down simultaneously.

[0031] For example, the first transmission assembly 8 includes a first fixed frame 81 and a first connecting frame 82. The lower part of the first fixed frame 81 is fixed to the fixed rod 3, and the first brake pedal 1 is fixed to the first connecting frame 82. The lower part of the first connecting frame 82 has a vertically arranged second guide hole 821. The first end of the linkage rod 4 has a first limiting part 41 that slides with the second guide hole 821. The upper end of the first connecting frame 82 is rotatably connected to the upper end of the first fixed frame 81, and the position of the upper end of the first fixed frame 81 is higher than the highest position of the linkage rod 4. When the first brake pedal 1 is pressed down, the first limiting part 41... Position 41 is located at the lower end of the second guide hole 821. Specifically, when the first brake pedal 1 is pressed down, the first connecting frame 82 rotates around the upper end of the first fixed frame 81 under the action of the first limiting part 41 on the first end of the second guide hole 821 and the linkage rod 4, and moves the lower end of the first connecting frame 82 toward the side close to the caster 71 to be braked. At the same time, it drives the linkage rod 4 to move horizontally toward the side close to the caster 71 to be braked, and drives the connecting rod 54 to move from the first end of the first guide hole 31 to the second end of the first guide hole 31, so that the brake 7 presses against the caster 71 to be braked, thereby braking the caster.

[0032] For example, the second transmission assembly 9 includes a second fixed frame 91, a second connecting frame 92, and a third connecting frame 93. The second fixed frame 91 is fixed to the fixed rod 3, and the second brake pedal 2 is fixed to the second connecting frame 92. The lower end of the second connecting frame 92 is rotatably connected to the second fixed frame 91. The upper part of the second connecting frame 92 has a vertically arranged third guide hole 921, the lowest point of which is higher than the highest point of the linkage rod 4. The lower part of the third connecting frame 93 is fixed to the second end of the linkage rod 4, and the upper part of the third connecting frame 93 has a second limiting part 931 that slides with the third guide hole 921. When the second brake pedal 2 is pressed down... When the brake pedal 2 is pressed, the second limiting part 931 is located at the lower end of the third guide hole 921. Specifically, when the second brake pedal 2 is pressed, the second connecting frame 92 rotates around the second fixed frame 91 under the action of the second limiting part 931 of the third guide hole 921 and the third connecting frame 93. The upper end of the second connecting frame 92 moves away from the caster 71 to be braked. Then, the third connecting frame 93 drives the linkage rod 4 to move horizontally towards the side closer to the caster 71 to be braked. It also drives the connecting rod 54 to move from the first end of the first guide hole 31 to the second end of the first guide hole 31, so that the brake 7 presses against the caster 71 to be braked, thereby braking the caster.

[0033] To ensure the stability of the horizontal movement of the linkage rod 4, a plurality of third connecting members 53 are provided at intervals along the length of the fixed rod 3. The first end of the third connecting member 53 is rotatably connected to the fixed rod 3, and the second end of the third connecting member 53 is rotatably connected to the linkage rod 4.

[0034] For example, at least one third connector 53 is provided on the front and rear sides of the third connector 53, which further improves the stability of the linkage rod 4 when it moves horizontally.

[0035] For example, the reset component 6 includes a spring 61, a drive plate 62, and a swing arm plate 63. The upper end of the drive plate 62 is provided with a fourth guide hole 621 that rotatably engages with the connecting rod 54. The fourth guide hole 621 is a vertically arranged hole. The lower end of the drive plate 62 is fixedly connected to a drive rod 64. The upper end of the swing arm plate 63 is rotatably connected to the bottom frame, and the lower end of the swing arm plate 63 is fixedly connected to the drive rod 64. The first end of the spring 61 is connected to the swing arm plate 63, and the second end of the spring 61 is connected to the bottom frame. The brake 7 is disposed on the drive rod 64, which effectively ensures that after the first brake pedal 1 and the second brake pedal 2 are released, the brake 7 is disengaged from the caster 71 to be braked under the action of the reset force of the spring 61, and the brake device (brake 7) automatically resets.

[0036] For example, both the reset member 6 and the brake 7 are provided in pairs; the two reset members 6 are symmetrically arranged on the left and right sides of the linkage rod 4, which allows for simultaneous braking of the two casters (the two front casters or the two rear casters), enabling single-person operation and one-time braking, improving safety and braking efficiency. In contrast, existing equipment with four casters at the bottom typically has only two casters with individual braking mechanisms, requiring two braking operations to secure the equipment; moreover, when braking on a slope, even after braking a single caster, the equipment still risks sliding downwards, and the overall operation is difficult.

[0037] For example, the fixed rod 3 has a U-shaped cross section, the linkage rod 4 has an inverted U-shaped cross section, and the linkage rod 4 is nested in the inner cavity of the fixed rod 3; the cross sections of the first connecting member 51 and the second connecting member 52 are both U-shaped, and the first connecting member 51, the second connecting member 52 and the third connecting member 53 are all disposed in the cavity formed by the linkage rod 4 and the fixed rod 3;

[0038] The first ends on the left and right sides of the first connecting member 51 are rotatably connected to the left and right sides of the linkage rod 4. The second ends on the left and right sides of the first connecting member 51 are rotatably connected to the left and right sides of the fixed rod 3. The third ends on the left and right sides of the first connecting member 51 are rotatably connected to the first ends on the left and right sides of the second connecting member 52. Two first guide holes 31 are provided and symmetrically arranged on the left and right sides of the fixed rod 3. The second ends on the left and right sides of the second connecting member 52 are provided with connecting rods 54 passing through the first guide holes 31. The first, second, and third ends of the first connecting member 51 are arranged in a triangle, and the first and second ends are arranged vertically. This effectively improves the movement stability between the components of the braking device. Preferably, the cross-section of the third connecting member 53 is U-shaped. The first ends on the left and right sides of the third connecting member 53 are rotatably connected to the left and right sides of the fixed rod 3, and the second ends on the left and right sides of the third connecting member 53 are rotatably connected to the left and right sides of the linkage rod 4.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0040] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A braking device, applied to equipment equipped with casters, wherein the bottom of the equipment has a base frame, and the base frame is equipped with casters, characterized in that, The braking device includes a first brake pedal, a second brake pedal, a first transmission assembly, a second transmission assembly, a fixed rod, a linkage rod, a first connector, a second connector, a reset component, and a brake actuator. The fixed rod is fixedly connected to the bottom frame along the length of the vehicle frame. The first brake pedal is connected to the first end of the linkage rod through the first transmission assembly, and the second brake pedal is connected to the second end of the linkage rod through the second transmission assembly. The linkage rod is arranged parallel to the fixed rod. Multiple third connectors are spaced apart along the length of the fixed rod. The first end of each third connector is rotatably connected to the fixed rod, and the second end of each third connector is rotatably connected to the linkage rod. The first end of each first connector is connected to the linkage rod. The first connecting member is rotatably connected to the fixed rod at its second end and to the first end of the second connecting member at its third end. The fixed rod has a first guide hole along its length. The second end of the second connecting member has a connecting rod passing through the first guide hole. The connecting rod is connected to the brake. The reset member is mounted on the bottom frame and connected to the brake. The fixed rod has a U-shaped cross-section, and the linkage rod has an inverted U-shaped cross-section. The linkage rod is nested within the inner cavity of the fixed rod. Both the first and second connecting members have U-shaped cross-sections and are located within the cavity formed by the linkage rod and the fixed rod. When the first brake pedal is pressed down, the first transmission assembly drives the linkage rod to move horizontally toward the side closer to the caster to be braked, and drives the connecting rod to move from the first end of the first guide hole to the second end of the first guide hole, so that the brake is pressed against the caster to be braked; When the second brake pedal is pressed down, the second transmission assembly drives the linkage rod to move horizontally toward the side closer to the caster to be braked, and drives the first connector to move the connecting rod from the first end of the first guide hole to the second end of the first guide hole, so that the brake presses against the caster to be braked; When the first brake pedal and the second brake pedal are released, the reset member moves the brake away from the caster to be braked, and the brake moves the connecting rod from the second end of the first guide hole to the first end of the first guide hole, thereby moving the first connecting member to make the linkage rod move horizontally toward the side away from the caster to be braked.

2. The braking device as described in claim 1, characterized in that, The first transmission assembly includes a first fixed frame and a first connecting frame. The lower part of the first fixed frame is fixed to the fixed rod, and the first brake pedal is fixed to the first connecting frame. The lower part of the first connecting frame has a vertically arranged second guide hole. The first end of the linkage rod has a first limiting part that slides with the second guide hole. The upper end of the first connecting frame is rotatably connected to the upper end of the first fixed frame, and the upper end of the first fixed frame is higher than the highest position of the linkage rod. When the first brake pedal is pressed down, the first limiting part is located at the lower end of the second guide hole.

3. The braking device as described in claim 1, characterized in that, The second transmission assembly includes a second fixed frame, a second connecting frame, and a third connecting frame. The second fixed frame is fixed to the fixed rod, and the second brake pedal is fixed to the second connecting frame. The lower end of the second connecting frame is rotatably connected to the second fixed frame. The upper part of the second connecting frame has a vertically arranged third guide hole, the lowest point of which is higher than the highest point of the linkage rod. The lower part of the third connecting frame is fixed to the second end of the linkage rod. The upper part of the third connecting frame has a second limiting part that slides with the third guide hole. When the second brake pedal is pressed down, the second limiting part is located at the lower end of the third guide hole.

4. The braking device as described in claim 1, characterized in that, At least one third connector is provided on each of the front and rear sides of the third connector.

5. The braking device as described in claim 1, characterized in that, The reset component includes a spring, a drive plate, and a swing arm plate. The upper end of the drive plate is provided with a fourth guide hole that rotatably engages with the connecting rod. The lower end of the drive plate is fixedly connected to a drive rod. The upper end of the swing arm plate is rotatably connected to the bottom frame, and the lower end of the swing arm plate is fixedly connected to the drive rod. The first end of the spring is connected to the swing arm plate, and the second end of the spring is connected to the bottom frame. The brake is mounted on the drive rod.

6. The braking device as described in claim 5, characterized in that, Both the reset component and the brake are provided in twos; the two reset components are symmetrically arranged on the left and right sides of the linkage rod.

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