Demonstration device for braking air supply system of rail transit vehicle

Abstract

The utility model discloses a demonstration device for a brake air supply system of a rail transit vehicle, which relates to the technical field of demonstration devices and comprises a demonstration board, the outer wall of the demonstration board is provided with a protection structure, the protection structure comprises a protection board, a vertical rod and a force application assembly, and the protection board is laid on the front surface of the demonstration board in a wave shape. The display screen can be prevented from being exposed to be directly collided and extruded when the demonstration board is not used through the arrangement mode that the protection structure and the driving structure are matched, safety protection is conducted on the display screen through the protection board, the surface of the display screen can be wiped at the same time, the display degree is clearer when the display screen conducts demonstration, and the demonstration effect is better. The use safety of the demonstration board is improved, the service life of the demonstration board is prolonged, the use cost of the demonstration board is reduced, the demonstration effect and quality of the demonstration board are improved, and the practicability of the demonstration board is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of demonstration devices, in particular to a demonstration device for a brake air supply system of a rail transit vehicle. Background Art

[0002] The rail transit vehicle brake air supply system is a key component for providing clean compressed air for rail transit vehicles. In order to ensure the normal operation of the rail transit vehicle air supply system, it is usually necessary to demonstrate the air supply system multiple times when the system is officially used, and the demonstration is generally displayed on a display screen.

[0003] Existing demonstration devices generally use a display screen to simulate the air supply process of the system, so as to intuitively observe whether the performance of the air supply system is qualified. However, the display screen for demonstrating the air supply system is usually directly exposed to the environment after use, making the surface of the display screen susceptible to direct external collision and extrusion, which will cause damage to the display screen, affecting the next demonstration of the air supply system, shortening the service life of the demonstration device, and increasing the cost of the demonstration. Therefore, in order to solve the above problems, a demonstration device for a rail transit vehicle brake air supply system is proposed. Utility Model Content

[0004] The utility model aims to provide a demonstration device for a rail transit vehicle brake air supply system to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a demonstration device for a rail transit vehicle brake air supply system, comprising a demonstration board, the outer wall of the demonstration board is provided with a protective structure, and the protective structure comprises:

[0006] A protective plate, which is laid on the front of the demonstration board in a wave shape. The protective plate is made of any one of sponge or elastic rubber;

[0007] A vertical rod, which is movably inserted into the inner cavity of the protective plate and is used to balance the position of the protective plate;

[0008] A force-applying component is disposed between the protective plate and the demonstration plate, and is used for moving the protective plate upward and folding the protective plate.

[0009] Preferably, the force applying component comprises:

[0010] Connecting rods, the connecting rods are symmetrically fixed on the sides of the protective plate, and the outer walls of the connecting rods are provided with through holes;

[0011] A pull rope, the bottom end of which is fixedly arranged on the inner wall of a through hole formed on the connecting rod, and the top end of which is fixedly arranged with a winding rod for winding and releasing the winding rope.

[0012] Preferably, the demonstration board comprises:

[0013] An outer frame, wherein a display screen for system demonstration is fixedly arranged in an inner cavity of the outer frame, and anti-collision blocks are fixedly arranged at the ends of the outer walls of the outer frame.

[0014] Preferably, a driving structure is provided at the top of the outer frame, and the driving structure comprises:

[0015] A protection box, the protection box is fixedly arranged on the top of the outer frame:

[0016] The first gear is fixedly arranged at the opposite end of the rolling rod, the outer wall of the first gear is meshed with the second gear, and the meshing of the first gear and the second gear is used to drive the rolling rod to rotate synchronously.

[0017] Preferably, the driving structure further includes:

[0018] A turning handle is fixedly arranged at the middle part of the second gear and the top end of the turning handle passes through the top end of the protection box and extends upwards, and the turning handle is used to drive the second gear to rotate.

[0019] Preferably, opposite side surfaces inside the outer frame are provided with strip grooves, and the back surface of the outer frame is provided with wire holes.

[0020] Technical effects and advantages of the utility model:

[0021] The utility model adopts the arrangement mode of matching the protection structure with the driving structure, so that when the demonstration board is not in use, the display screen can be prevented from being exposed to the outside and being directly hit and squeezed. The display screen is safely protected by the protection plate and the surface of the display screen can be wiped at the same time, so that the display screen is clearer when performing demonstrations, thereby improving the safety of the use of the demonstration board, extending the service life of the demonstration board, reducing the use cost of the demonstration board, and also improving the effect and quality of the demonstration of the demonstration board, thereby enhancing the practicality of the demonstration board. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of the protective structure of the utility model.

[0024] Figure 3 It is a schematic cross-sectional view of the driving structure of the utility model.

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the demonstration board of the utility model.

[0026] In the figure: 1. demonstration board; 101. outer frame; 102. display screen; 2. protection structure; 201. protection plate; 202. vertical rod; 203. connecting rod; 204. pull rope; 205. winding rod; 3. driving structure; 301. protection box; 302. first gear; 303. second gear; 304. turning handle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The utility model provides Figure 1-4 A rail transit vehicle brake air supply system demonstration device shown includes a demonstration board 1, which includes an outer frame 101. The inner cavity of the outer frame 101 is fixedly provided with a display screen 102 for system demonstration. The outer wall ends of the outer frame 101 are fixedly provided with anti-collision blocks. The display screen 102 is electrically connected to an external control switch through wires. The opposite sides inside the outer frame 101 are provided with strip grooves. The back of the outer frame 101 is provided with wire holes. The anti-collision blocks at the ends of the outer frame 101 are elastic rubbers with good elastic properties, which can provide safety protection for the ends of the outer frame 101 and strengthen the safety protection of the display screen 102, thereby extending the service life of the demonstration board 1 and reducing the use cost of the demonstration board 1.

[0029] Furthermore, the outer wall of the demonstration board 1 is provided with a protective structure 2, and the protective structure 2 includes a protective plate 201, a vertical rod 202 and a force-applying component. The protective plate 201 is laid in a wave shape on the front of the demonstration board 1. The protective plate 201 is any one of sponge or elastic rubber, and the vertical rod 202 is movably inserted in the inner cavity of the protective plate 201. The vertical rod 202 is used to balance the position of the protective plate 201. When the demonstration board 1 is not in use, the protective plate 201 can be set on the front of it, so that the display screen 102 can be shielded to prevent the display screen 102 from being exposed to the outside for a long time and being collided. In addition, due to the wavy setting of the protective plate 201, a linear contact is formed between the protective plate 201 and the display screen 102, so that there are multiple equally spaced spaces between the protective plate 201 and the display screen 102, so that when the protective plate 201 is subjected to external collision and compression, it can have space for deformation, and thus can have good buffering performance. At the same time, the protective plate 201 is in contact with the front of the display screen 102, and the protective plate 201 is The sponge or elastic rubber can facilitate the friction with the display screen 102 to wipe the front of the display screen 102 when the protective plate 201 is raised or lowered due to the line contact, so that the surface of the display screen 102 can be cleaned. The vertical rod 202 is connected by being inserted and squeezed with the inner cavity of the protective plate 201. The vertical rod 202 is a heavy metal rod, which is inserted and arranged at the bottom of the protective plate 201, and can play a stabilizing role in laying the protective plate 201 on the front of the display screen 102, so as to prevent the protective plate 201 from being easily blown open by the wind, thereby improving the effectiveness and practicality of the use of the protective plate 201. In summary, the safety protection of the demonstration board 1 is strengthened, the service life of the demonstration board 1 is extended, and the display area of ​​the demonstration board 1 can be cleaned at the same time, thereby improving the quality of the demonstration of the demonstration board 1.

[0030] Furthermore, a force-applying component is arranged between the protective plate 201 and the demonstration board 1, and the force-applying component is used for moving the protective plate 201 upward and folding. The force-applying component includes a connecting rod 203 and a pull rope 204. The connecting rod 203 is symmetrically fixedly arranged on the side of the protective plate 201. The outer wall of the connecting rod 203 is provided with a through hole. The bottom end of the pull rope 204 is fixedly arranged with the inner wall of the through hole opened on the connecting rod 203. The top of the pull rope 204 is fixedly provided with a winding rod 205 for winding and unwinding. The winding rod 205 is rotatably arranged at the top of the outer frame 101. The top of the pull rope 204 is fixedly arranged with the outer wall of the winding rod 205, and the pull rope 204 moves with the The connecting rod 203 is fixed to the side of the protective plate 201 by the rotation of the rolling rod 205. It can be moved vertically along with the winding and unwinding of the pull rope 204 by the fixed arrangement with the bottom end of the pull rope 204. The connecting rod 203 moves along with the inner cavity of the strip groove symmetrically opened inside the outer frame 101, and drives the protective plate 201 to change its position while moving. When driving the protective plate 201 to move upward, the protective plate 201 can be folded along the wavy folds, thereby ensuring the integrity of the upward movement of the protective plate 201 and avoiding blocking the subsequent demonstration use of the display screen 102.

[0031] Finally, a driving structure 3 is provided at the top of the outer frame 101, and the driving structure 3 includes a protection box 301 and a first gear 302. The protection box 301 is fixedly provided at the top of the outer frame 101, and the first gear 302 is fixedly provided at the opposite end of the winding rod 205. The outer wall of the first gear 302 is meshed with a second gear 303. The meshing of the first gear 302 and the second gear 303 is used to drive the winding rod 205 to rotate synchronously. The setting of the protection box 301 prevents the first gear 302 and the second gear 303 from being exposed to the outside and being damaged by direct collision. The first gear 302 and the second gear 303 are meshed with each other, so that after rotating the second gear 303, the first gear 302 can be driven to rotate, so that the symmetrically arranged winding rod 205 can rotate synchronously, and then the pull rope 204 can be retracted and unwound. The driving structure 3 also includes a turning handle 304, which is fixedly provided on the second gear 3 03 and the top of the turning handle 304 passes through the top of the protection box 301 and extends upward, the turning handle 304 is used to drive the second gear 303 to rotate, and the cross-section of the turning handle 304 is T-shaped. The setting of the turning handle 304 provides an apex for the operator to apply force with his hand, so that the operator can drive the second gear 303 to rotate after applying force to the turning handle 304, and then drive the protective plate 201 to fold or unfold. In summary, when the demonstration board 1 demonstrates the automatic air supply system of the rail transit vehicle, the second gear 303 can be driven to rotate by rotating the turning handle 304, so that the first gear 302 drives the winding rod 205 to rotate synchronously, so that the pull rope 204 is reeled in, and then the protective plate 201 can be folded, thereby exposing the display screen 102 for system demonstration, and vice versa, the front of the display screen 102 can be safely protected by unfolding the protective plate 201.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A demonstration device for a rail transit vehicle brake air supply system, comprising a demonstration board (1), characterized in that: The outer wall of the demonstration board (1) is provided with a protective structure (2), and the protective structure (2) comprises: A protective plate (201), the protective plate (201) is laid on the front of the demonstration board (1) in a wave shape, and the protective plate (201) is any one of sponge and elastic rubber; A vertical rod (202), the vertical rod (202) is movably inserted into the inner cavity of the protective plate (201), and the vertical rod (202) is used to balance the position of the protective plate (201); A force-applying component is disposed between the protective plate (201) and the demonstration plate (1), and is used for moving the protective plate (201) upward and folding it.

2. A rail transit vehicle brake air supply system demonstration device according to claim 1, characterized in that: The force applying component comprises: Connecting rods (203), the connecting rods (203) are symmetrically fixedly arranged on the side of the protective plate (201), and the outer walls of the connecting rods (203) are each provided with a through hole; A pull rope (204), the bottom end of which is fixedly arranged on the inner wall of a through hole opened on the connecting rod (203), and the top end of which is fixedly arranged with a winding rod (205) for winding and releasing the rope.

3. A rail transit vehicle brake air supply system demonstration device according to claim 1, characterized in that: The demonstration board (1) comprises: An outer frame (101), wherein an inner cavity of the outer frame (101) is fixedly provided with a display screen (102) for system demonstration, and anti-collision blocks are fixedly provided at the ends of the outer walls of the outer frame (101).

4. A rail transit vehicle brake air supply system demonstration device according to claim 3, characterized in that: A driving structure (3) is provided at the top end of the outer frame (101), and the driving structure (3) comprises: A protection box (301), wherein the protection box (301) is fixedly disposed on the top of the outer frame (101): A first gear (302), wherein the first gear (302) is fixedly arranged at an end opposite to the rolling rod (205), and a second gear (303) is meshed on an outer wall of the first gear (302), and the meshing of the first gear (302) and the second gear (303) is used to drive the rolling rod (205) to rotate synchronously.

5. A rail transit vehicle brake air supply system demonstration device according to claim 4, characterized in that: The driving structure (3) further comprises: A turning handle (304) is fixedly arranged at the middle of the second gear (303) and the top of the turning handle (304) passes through the top of the protection box (301) and extends upward, and the turning handle (304) is used to drive the second gear (303) to rotate.

6. A rail transit vehicle brake air supply system demonstration device according to claim 3, characterized in that: The opposite side surfaces inside the outer frame (101) are provided with strip grooves, and the back surface of the outer frame (101) is provided with wire holes.

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