Bidirectional braking type walking brake

Abstract

The utility model belongs to the technical field of brakes, and discloses a two-way braking type walking brake which comprises a brake body, detection structures are arranged on the two sides of the interior of the brake body, pressure sensors are arranged in the detection structures, and installation rings located on the outer sides of the detection structures are arranged on the inner wall of the brake body. The detection structure comprises a mounting frame, and a movable block is arranged in an inner cavity of the mounting frame. According to the brake, the balls and the pressing rods are arranged, when the brake is used, the shoe blocks drive the mounting frame to move towards the outer side, then the balls are driven to extrude the mounting ring, the balls, the connecting columns and the movable blocks are blocked to move towards the inner cavity of the mounting frame, meanwhile, the movable blocks drive the pressing rods to move, and when the pressing rods trigger the pressure sensors, personnel are reminded to replace the shoe blocks; and when not triggered, the brake is normally used, so that potential safety hazards are avoided by detecting the abrasion condition of the friction plate, and the friction plate is replaced in time.

Description

Technical Field

[0001] The utility model belongs to the technical field of brakes, in particular to a bidirectional braking type travel brake. Background Art

[0002] A bidirectional brake is a braking device used for walking machinery, which can provide braking force when the walking machinery moves forward or backward, ensuring the safety of the walking machinery when stopping or decelerating;

[0003] In actual use of the bidirectional brake in the prior art, when the wheel rotates, whether clockwise or counterclockwise, by stepping on the brake pedal, the brake shoe will be pushed against the brake drum, generating a friction torque to achieve braking. However, when the brake is in use, the friction plate arranged on the outside of the brake shoe will rub against the brake drum. After long-term use, the thickness of the friction plate will be reduced, and the pressure of the brake pedal needs to be increased, which in turn leads to a reduction in the braking effect of the brake. At the same time, it cannot effectively remind personnel to replace it, so it needs to be improved. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a bidirectional braking type travel brake.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a bidirectional braking type travel brake, comprising a brake, detection structures are provided on both sides of the interior of the brake, a pressure sensor is provided inside the detection structure, and a mounting ring is provided on the inner wall of the brake and is located outside the detection structure;

[0006] Among them, the detection structure includes a mounting frame, a movable block is provided in the inner cavity of the mounting frame, the outer side of the movable block is connected to a connecting column located outside the mounting frame, a ball is provided at the end of the connecting column, and a pressure rod located outside the pressure sensor is provided on the outer side of the movable block.

[0007] Preferably, the brake includes a brake drum, a brake wheel cylinder is provided in the inner cavity of the brake drum, shoes are provided on both sides of the brake wheel cylinder, there are two shoes, a spring is provided between the two shoes, and friction plates are provided on the outside of the two shoes.

[0008] Preferably, two mounting frames are provided, and the tops of the two mounting frames are connected to the bottoms of the two shoe blocks.

[0009] Preferably, a connecting rod is provided on the outer side of the movable block, and the outer side of the connecting rod extends to the outside of the mounting frame.

[0010] Preferably, the movable block is elastically connected to the mounting bracket via a second spring.

[0011] Preferably, the outer side of the mounting ring is connected to the inner wall of the brake drum, and the mounting ring is horizontally aligned with the ball.

[0012] Preferably, the outer surface of the pressure sensor is connected to the inner wall of the mounting bracket.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] The utility model is provided with a ball and a pressure rod. When the brake is in use, the shoe drives the mounting frame to move outward, thereby driving the ball to squeeze the mounting ring. The ball, connecting column and movable block are blocked and move toward the inner cavity of the mounting frame. At the same time, the movable block drives the pressure rod to move. When the pressure rod triggers the pressure sensor, it reminds personnel to replace the shoe. When it is not triggered, the brake is used normally, thereby avoiding safety hazards by detecting the wear of the friction plate and replacing it in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the mounting frame of the utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the mounting bracket of the utility model;

[0018] Figure 4 This is a schematic cross-sectional view of the arc-shaped ring of the utility model.

[0019] In the figure: 1. Brake; 101. Brake drum; 102. Shoe; 103. Brake wheel cylinder; 104. Spring 1; 2. Detection structure; 201. Mounting frame; 202. Movable block; 203. Connecting column; 204. Ball bearing; 205. Connecting rod; 206. Pressure rod; 207. Spring 2; 3. Pressure sensor; 4. Mounting ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1

[0022] like Figures 1 to 4FIG. 1 shows a first embodiment of the present invention, which provides a bidirectional braking type travel brake, comprising a brake 1, a detection structure 2 provided on both sides of the interior of the brake 1, a pressure sensor 3 provided inside the detection structure 2, and a mounting ring 4 provided on the inner wall of the brake 1 and located outside the detection structure 2;

[0023] Among them, the detection structure 2 includes a mounting frame 201, a movable block 202 is provided in the inner cavity of the mounting frame 201, the outer side of the movable block 202 is connected to a connecting column 203 located outside the mounting frame 201, a ball 204 is provided at the end of the connecting column 203, and a pressure rod 206 located outside the pressure sensor 3 is provided on the outer side of the movable block 202.

[0024] When the brake pedal is pressed, the brake 1 drives the detection structure 2 to move outward as a whole, and then the top of the ball 204 is connected to the inner wall of the mounting ring 4. The ball 204 will be blocked by the mounting ring 4, and the ball 204, the connecting column 203 and the movable block 202 move toward the inner cavity of the mounting frame 201. As the movable block 202 moves, it drives the pressure rod 206 to move backward. Then, after long-term use, the shoe 102 is severely worn, which will cause the ball 204 to move a greater distance. Until it is worn to a safe vertical position, it drives the pressure rod 206 to squeeze and trigger the pressure sensor 3, thereby checking the usage status of the brake 1 through the pressure sensor 3 for timely replacement.

[0025] Example 2

[0026] like Figure 1 and Figure 3 As shown, this embodiment includes the features of embodiment 1, and the distinguishing technical features are:

[0027] The brake 1 includes a brake drum 101, in which a brake wheel cylinder 103 is provided in the inner cavity. Shoes 102 are provided on both sides of the brake wheel cylinder 103. There are two shoes 102, a spring 104 is provided between the two shoes 102, and friction plates are provided on the outside of the two shoes 102.

[0028] When the brake pedal is pressed, the two shoes 102 will move toward the inner wall of the brake drum 101, causing the friction plates on the shoes 102 to rub against the inner wall of the brake drum 101 for braking. After braking, the elastic force of spring 104 will drive the two shoes 102 to return to their original position, making subsequent braking easier.

[0029] There are two mounting frames 201 , and the tops of the two mounting frames 201 are connected to the bottoms of the two shoe blocks 102 .

[0030] When the two shoes 102 move outward, the mounting frame 201 is driven outward by the shoe 102, and then the ball 204 contacts the mounting ring 4, squeezing the ball 204, the connecting column 203 and the movable block 202 to move toward the inner cavity of the mounting frame 201. According to the movement distance of the ball 204, the wear of the friction plate on the shoe 102 is detected, so that the shoe 102 with severe wear is replaced to prevent safety hazards.

[0031] A connecting rod 205 is provided on the outer side of the movable block 202 , and the outer side of the connecting rod 205 extends to the outside of the mounting frame 201 .

[0032] When the ball 204 is blocked by the mounting ring 4, the ball 204, the connecting column 203 and the movable block 202 will be squeezed into the inner cavity of the mounting frame 201, and then the movable block 202 drives the connecting rod 205 to move backward. When the movable block 202 moves, the connecting rod 205 is limited to prevent position displacement.

[0033] The movable block 202 is elastically connected to the mounting bracket 201 via a second spring 207 .

[0034] At this time, since the second spring 207 is in a squeezed state, it will apply outward pressure to the movable block 202, driving the squeezed ball 204, the connecting column 203 and the movable block 202 to reset, thereby facilitating subsequent continuous detection.

[0035] Example 3

[0036] like Figure 3 and Figure 4 As shown, this embodiment includes the features of embodiment 1, and the distinguishing technical feature is that the outer side of the mounting ring 4 is connected to the inner wall of the brake drum 101 , and the mounting ring 4 is horizontally aligned with the ball 204 .

[0037] When the outer side of the ball 204 is blocked and squeezed by the mounting ring 4, the outer surface of the ball 204 slides on the mounting ring 4, reducing the contact area between the ball 204 and the mounting ring 4 and reducing the friction between the ball 204 and the mounting ring 4, thereby ensuring the accuracy of detecting the wear of the friction plate.

[0038] The outer surface of the pressure sensor 3 is connected to the inner wall of the mounting bracket 201 .

[0039] When the pressure rod 206 moves inward, it triggers the pressure sensor 3, thereby sending a signal to let the user know the condition of the friction plate on the shoe 102, so that the user can align and replace it in time to prevent safety hazards.

[0040] The working principle and use process of this utility model:

[0041] First, when the operator uses the brake 1, the two shoes 102 will be driven to move outward, and the friction pads on the outside of the shoes 102 will contact the inner wall of the brake 1 to produce a braking effect. Then, when the shoes 102 move, the detection structure 2 will be driven to move as a whole, so that the ball 204 is squeezed against the outside of the mounting ring 4. When the mounting ring 4 vibrates, the ball 204, the connecting column 203 and the movable block 202 are squeezed and moved to the inner cavity of the mounting frame 201. At the same time, the movable block 202 drives the pressure rod 206 to move toward the pressure sensor 3. When the pressure sensor 3 is triggered, the pressure sensor 3 generates a signal to remind the operator that the friction pad is severely worn and needs to be aligned and replaced in time to avoid affecting the braking effect of the brake 1. When the pressure sensor 3 is triggered and the braking is completed, the elastic recovery effect of the spring 2 207 drives the movable block 202, the connecting column 203 and the movable block 202 to reset for subsequent detection, thereby facilitating the operator to detect the wear of the friction pad, avoiding the impact of severe wear on the braking effect without knowing it, and preventing safety hazards.

[0042] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bidirectional braking type travel brake, comprising a brake (1), characterized in that: Detection structures (2) are provided on both sides of the interior of the brake (1), a pressure sensor (3) is provided inside the detection structure (2), and a mounting ring (4) located outside the detection structure (2) is provided on the inner wall of the brake (1); The detection structure (2) includes a mounting frame (201), a movable block (202) is provided in an inner cavity of the mounting frame (201), a connecting column (203) located outside the mounting frame (201) is connected to the outer side of the movable block (202), a ball (204) is provided at the end of the connecting column (203), and a pressure rod (206) located outside the pressure sensor (3) is provided on the outer side of the movable block (202).

2. A bidirectional braking type travel brake according to claim 1, characterized in that: The brake (1) comprises a brake drum (101), a brake wheel cylinder (103) is provided in the inner cavity of the brake drum (101), shoes (102) are provided on both sides of the brake wheel cylinder (103), there are two shoes (102), a spring (104) is provided between the two shoes (102), and friction plates are provided on the outside of the two shoes (102).

3. A bidirectional braking type travel brake according to claim 2, characterized in that: Two mounting frames (201) are provided, and the tops of the two mounting frames (201) are connected to the bottoms of the two shoe blocks (102).

4. The bidirectional braking type travel brake according to claim 1, characterized in that: A connecting rod (205) is provided on the outer side of the movable block (202), and the outer side of the connecting rod (205) extends to the outside of the mounting frame (201).

5. The bidirectional braking type travel brake according to claim 1, characterized in that: The movable block (202) is elastically connected to the mounting frame (201) via a second spring (207).

6. The bidirectional braking type travel brake according to claim 2, characterized in that: The outer side of the mounting ring (4) is connected to the inner wall of the brake drum (101), and the mounting ring (4) is horizontally aligned with the ball (204).

7. The bidirectional braking type travel brake according to claim 1, characterized in that: The outer surface of the pressure sensor (3) is connected to the inner wall of the mounting frame (201).

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