Stable walking polyurethane buffer

Abstract

The utility model discloses a stable walking polyurethane buffer, which relates to the technical field of supporting and reinforcing, is mounted on a rail car, and comprises two vertically distributed conical slide blocks and two horizontally distributed polyurethane conical blocks, the inclined surfaces of the conical slide blocks and the polyurethane conical blocks are attached to each other, and the inclined surfaces of the conical slide blocks and the polyurethane conical blocks are attached to each other. The two conical sliding blocks are fixedly connected with polyurethane conical blocks, the outer side walls of the polyurethane conical blocks are fixedly connected with connecting plates, the outer side walls of the connecting plates are fixedly connected with magnets, the two magnets attract each other through magnetic attraction force, and a connecting rod is connected between the two conical sliding blocks in a sliding mode. The first conical sliding block bears impact momentum and extrudes the polyurethane conical block, kinetic energy is converted into potential energy formed when the magnet leaves away, momentum borne by the second conical sliding block is buffered, the influence caused by impact is reduced, and the stability and safety performance of the rail car in the walking process are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of support and reinforcement technology, and in particular to a stable walking polyurethane buffer. Background Technology

[0002] A walking damper is a device used to reduce the impact of objects during walking due to collisions, inertia, and other factors.

[0003] However, in existing technologies, when a railcar reaches the end of the track or a stopping point, it is difficult to stop immediately due to inertia. Without effective buffering measures, it will collide violently with obstacles. The impact force generated by such a collision may cause deformation of the railcar's body structure, especially the front part, which may suffer dents and damage. How to reduce the damage caused by inertia to the railcar is an urgent problem to be solved by the travel buffer. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a stable walking polyurethane buffer.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a stable walking polyurethane buffer, installed on a railcar, comprising two vertically distributed conical sliders and two horizontally distributed polyurethane conical blocks, wherein the inclined surfaces of the conical sliders and polyurethane conical blocks are in contact with each other, a connecting plate is fixedly connected to the outer wall of each polyurethane conical block, and a magnet is fixedly connected to the outer wall of each connecting plate. The two magnets attract each other through magnetic attraction, a connecting rod is slidably connected between the two conical sliders, and a positioning rod is slidably connected between the two polyurethane conical blocks.

[0006] Preferably, threaded holes are provided at the four corners of the connecting plate, and the connecting plate is fixedly connected to the polyurethane tapered block by threaded nails.

[0007] Preferably, both ends of the connecting plate are provided with ear seats, and the outer side wall of the positioning rod is slidably connected to the ear seats.

[0008] Preferably, both ends of the positioning rod are provided with external threads, and the positioning rod is connected to the nut through the external threads.

[0009] Preferably, a stepped through hole upper opening is provided at the center of one side of the conical slider, and a stepped through hole lower opening is provided at the center of the other side of the conical slider.

[0010] Preferably, the upper opening and lower opening of the stepped through hole are interconnected, both ends of the connecting rod are fixedly connected to a circular baffle, and one side of the polyurethane conical block has a semi-through opening.

[0011] Preferably, the outer diameter of the circular baffle is equal to the inner diameter of the upper opening of the stepped through hole, and the inner diameter of the upper opening of the stepped through hole is greater than the inner diameter of the lower opening of the stepped through hole.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, when the railcar travels to the track parking point or end and an impact occurs, the first conical slider receives the impact momentum and squeezes the polyurethane conical block, converting the kinetic energy into the potential energy generated by the magnet moving away, buffering the momentum carried by the second conical slider, reducing the impact caused by the impact, and effectively improving the stability and safety performance of the railcar during travel.

[0014] 2. In this utility model, the polyurethane conical block uses polyurethane material with good wear resistance, strong intermolecular forces, and elastic and tough structure. It can withstand greater pressure and friction without being easily worn. At the same time, relying on its good elasticity and flexibility, it can convert some momentum into its own deformation to buffer. After the external force is removed, it can also return to its original shape, further enhancing the buffering effect.

[0015] 3. In this utility model, by moving two conical sliders on the vertical axis and two polyurethane conical blocks on the horizontal axis, with the inclined surfaces always in contact with each other, and with the magnetic attraction of the magnets on both sides, the polyurethane conical blocks are brought together in the middle and the conical sliders are pushed apart at both ends, ensuring that the buffer can automatically return to the initial state after completing one buffering action, thus having the ability to be used continuously multiple times, greatly improving the practicality and economy of the buffer. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a stable walking polyurethane buffer is provided for this utility model.

[0017] Figure 2 A front structural cross-sectional view of a stable walking polyurethane buffer is provided for this utility model.

[0018] Figure 3 This invention presents a schematic diagram of the structure of two urethane cone blocks in a stable walking polyurethane buffer.

[0019] Figure 4 This invention presents a schematic diagram of the internal structure of the tapered slider in a stable walking polyurethane buffer.

[0020] Legend: 1. Conical slider; 10. Upper opening of stepped through hole; 11. Lower opening of stepped through hole; 2. Polyurethane conical block; 20. Half-through opening; 3. Connecting plate; 4. Threaded nail; 5. Ear seat; 6. Positioning rod; 60. External thread; 7. Nut; 8. Connecting rod; 80. Circular baffle; 9. Magnet. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a stable walking polyurethane buffer, which is installed on a railcar. It includes two vertically distributed conical sliders 1 and two horizontally distributed polyurethane conical blocks 2. The inclined surfaces of the conical sliders 1 and the polyurethane conical blocks 2 are in contact with each other. A connecting plate 3 is fixedly connected to the outer wall of each polyurethane conical block 2. A magnet 9 is fixedly connected to the outer wall of each connecting plate 3. The two magnets 9 attract each other through magnetic attraction. A connecting rod 8 is slidably connected between the two conical sliders 1 and a positioning rod 6 is slidably connected between the two polyurethane conical blocks 2.

[0024] The specific setup and function of this embodiment are described below. The buffer is installed on the railcar. One conical slider 1 is connected to the railcar body, and the other conical slider 1 extends outwards. The railcar travels on the track. When it reaches the stopping point or end of the track, due to inertia, the railcar continues to move forward a certain distance. When it collides with an object, the conical slider 1 first contacts the object. The conical slider 1 absorbs the momentum of the impact between the railcar and the object, causing the conical slider 1 to compress the polyurethane conical blocks 2 on both sides, causing them to move outwards. This converts the kinetic energy into increased potential energy as the two connecting plates 3 move away from each other. Therefore, the momentum carried by the conical slider 1 installed on the railcar... The design provides a certain degree of cushioning, reducing the impact on the railcar during movement, improving its stability, and enhancing its safety. Furthermore, both polyurethane cone blocks 2 are made of polyurethane material, which has excellent wear resistance due to the strong forces between its molecular chains and its elastic and tough structure. During friction, it can withstand significant pressure and friction without easily wearing down. It also possesses good elasticity and flexibility, allowing it to convert some momentum into deformation. When the external force is removed, the molecular chains recover to their original state through their elasticity, thus providing a similar cushioning effect.

[0025] Example 2: Figure 2 and Figure 3As shown, threaded holes are provided at the four corners of the connecting plate 3, and the connecting plate 3 is fixedly connected to the polyurethane conical block 2 by threaded nails 4. Ear seats 5 are provided at both ends of the connecting plate 3, and the outer wall of the positioning rod 6 is slidably connected to the ear seats 5. External threads 60 are provided at both ends of the positioning rod 6, and the nut 7 is threadedly connected to the external threads 60. A stepped through hole upper opening 10 is provided at the center of one side of the conical slider 1, and a stepped through hole lower opening 11 is provided at the center of the other side of the conical slider 1. The stepped through hole upper opening 10 and the stepped through hole lower opening 11 are interconnected. Circular baffles 80 are fixedly connected to both ends of the connecting rod 8, and a semi-through opening 20 is provided on one side of the polyurethane conical block 2. The outer diameter of the circular baffle 80 is equal to the inner diameter of the stepped through hole upper opening 10, and the inner diameter of the stepped through hole upper opening 10 is larger than the inner diameter of the stepped through hole lower opening 11.

[0026] The overall effect of this embodiment is that, in order to allow the buffer to return to its initial state after the external force is removed, and to enable the buffer to be used continuously multiple times, stepped through holes 10 and 11 are formed in the two conical sliders 1. The stepped through holes 10 and 11 are located on the same axis, forming stepped through holes. Circular baffles 80 are provided at both ends of the connecting rod 8. The circular baffles 80 interact with the stepped through hole 11 to limit the movement and prevent the two conical sliders 1 from detaching from the connecting rod 8. At the same time, a semi-opening 20 is provided on the inner wall of the polyurethane conical block 2 so that even if the two polyurethane blocks 1 are detached from the connecting rod 8, the two conical sliders 1 can still be detached from the connecting rod 8. The ester cone blocks 2 fit together without interfering with the connecting rod 8, thus ensuring the reset effect of the two cone sliders 1. Ear seats 5 are set on both sides of the connecting plate 3, allowing the two polyurethane cone blocks 2 to be positioned through the ear seats 5. The positioning rod 6 passes through the ear seats 5 on both sides, and the two ends of the positioning rod 6 are limited by the nut 7, so that the two polyurethane cone blocks 2 can slide along the straight trajectory of the positioning rod 6. Since the inclined surfaces of the cone slider 1 and the polyurethane cone block 2 are always in contact with each other, the two cone slider 1 and the polyurethane cone block 2 form a cross structure connection, making the entire buffer more stable.

[0027] The device's operation and working principle are as follows: When the railcar reaches the parking point or end of the track, it continues to move forward due to inertia. When the conical slider 1 collides with an object, it absorbs the momentum of the impact. This momentum causes the conical slider 1 to compress the polyurethane conical blocks 2 on both sides, causing them to move outward. At this time, the kinetic energy is converted into the increased potential energy as the two connecting plates 3 move away. Simultaneously, the polyurethane conical blocks 2 utilize their good elasticity and flexibility to convert some of the momentum into their own deformation to buffer the impact, thereby cushioning the momentum carried by the conical slider 1 and reducing the impact of the collision.

[0028] After the external force is removed, the two conical sliders 1 move on the vertical axis via the connecting rod 8, and the two polyurethane conical blocks 2 move on the horizontal axis via the positioning rod 6. The inclined surfaces of the conical sliders 1 and the polyurethane conical blocks 2 are always in contact with each other, forming a cross-shaped connection. The magnets 9 on both sides attract the two polyurethane conical blocks 2 towards the middle through magnetic attraction. The two conical sliders 1 are pushed apart to both ends by the influence of the inclined surfaces, allowing the buffer to be used continuously multiple times.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A stable walking polyurethane buffer mounted on a rail vehicle, comprising two vertically distributed conical sliders (1) and two horizontally distributed polyurethane conical blocks (2), characterized in that: The inclined surface of the conical sliding block (1) and the polyurethane conical block (2) are mutually attached, the outer side wall of the polyurethane conical block (2) is fixedly connected with the connecting plate (3), the outer side wall of the connecting plate (3) is fixedly connected with the magnet (9), two magnets (9) are attracted to each other by magnetic force, two conical sliding blocks (1) are slidingly connected with the connecting rod (8), and two polyurethane conical blocks (2) are slidingly connected with the positioning rod (6).

2. The stable walking polyurethane cushion according to claim 1, characterized in that: The four corner positions of the connecting plate (3) are provided with threaded holes, and the connecting plate (3) is fixedly connected with the polyurethane conical block (2) through the threaded nails (4).

3. The stable walking polyurethane cushion of claim 1, wherein: Both ends of the connecting plate (3) are provided with the lug seat (5), and the outer side wall of the positioning rod (6) is slidingly connected with the lug seat (5).

4. The stable walking polyurethane cushion of claim 1, wherein: Both ends of the positioning rod (6) are provided with the threaded outer wire (60), and the positioning rod (6) is connected with the nut (7) through the threaded outer wire (60).

5. The stable walking polyurethane cushion of claim 1, wherein: One side of the conical sliding block (1) is provided with the stepped hole upper opening (10) at the central position, and the other side of the conical sliding block (1) is provided with the stepped hole lower opening (11) at the central position.

6. The stable walking polyurethane bumper of claim 5, wherein: The stepped hole upper opening (10) and the stepped hole lower opening (11) are mutually communicated, both ends of the connecting rod (8) are fixedly connected with the circular baffle (80), and one side of the polyurethane conical block (2) is provided with the half opening (20).

7. The stable walking polyurethane bumper of claim 6, wherein: The outer diameter of the circular baffle (80) is equal to the inner diameter of the stepped hole upper opening (10), and the inner diameter of the stepped hole upper opening (10) is greater than the inner diameter of the stepped hole lower opening (11).

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