A rubber joint limiting structure for rail vehicle connection

Abstract

The utility model provides a kind of rubber joint limiting structure for rail vehicle connection, including two fixed parts, two rubber connecting arms and hinged parts, two The fixed part is fixedly installed in the side wall of two rail vehicles respectively, and one end of two The rubber connecting arm is rotatably connected on two fixed parts respectively.The utility model is gradually shortened when two rail vehicles are close to each other, so that two rubber connecting arms will rotate at fixed part and hinged part to adapt the distance between two rail vehicles, so that the linear distance of two ends of two rubber connecting arms is gradually shortened to adapt the dynamic distance between two rail vehicles, when the coupler of two rail vehicles can be connected, the supporting plane on two rubber connecting arms is mutually resisted to limit two rail vehicles, so as to prevent further movement of rail vehicle from causing coupler damage.

Description

Technical Field

[0001] This utility model relates to the technical field of rubber products for rail vehicles, specifically a rubber joint limiting structure for rail vehicle connections. Background Technology

[0002] Rail vehicles are a type of vehicle that generally move by rail and are often used in urban transportation and mining operations. In actual use, the multiple carriages of a rail vehicle are generally relatively independent and are connected to each other by a connecting structure.

[0003] Application number CN202122238959.7 discloses a rail vehicle connection support, including a support body. A support shaft is mounted on the inner wall of the support body, and a rear vehicle mounting component is sleeved on the outer side of the support shaft. An installation groove is formed on the side of the support body away from the rear vehicle mounting component. This device uses a rack and pinion connection, allowing the operator to pull the mounting plate to move the rack upwards when inserting the front vehicle mounting component into the installation groove. This causes the rotating shaft to rotate, allowing a square block to be inserted into a T-slot. After installation, releasing the mounting plate allows the rack to rotate the rotating shaft and the square block, creating a mutual restraint between the square block and the T-slot. This helps the screw withstand tension, preventing insufficient service life due to excessive tension, and further restricts the screw's movement, ensuring its stability.

[0004] However, when connecting two rail vehicles, they usually approach each other slowly so that the couplers gradually come into contact and connect. During this process, the two rail vehicles need to be kept moving slowly. However, due to the lack of a limiting structure, collisions and scrapes between the two couplers are likely to occur during the operation of the rail vehicles, which reduces the overall service life of the couplers. Utility Model Content

[0005] The purpose of this invention is to provide a rubber joint limiting structure for connecting rail vehicles, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A rubber joint limiting structure for connecting rail vehicles is used for supporting and limiting when connecting two adjacent rail vehicles. It includes two fixing members, two rubber connecting arms, and a hinge member. The two fixing members are respectively fixedly installed on the side walls of the two rail vehicles. One end of each of the two rubber connecting arms is rotatably connected to the two fixing members, and the other ends of the two rubber connecting arms are hinged to each other through the hinge member. Each of the two rubber connecting arms has a supporting plane, and the two supporting planes abut against each other.

[0008] Preferably, the fixing component includes a shaft and a base. The shaft is fixedly connected to the base. One end of each of the two rubber connecting arms is provided with a second connecting hole. The two rubber connecting arms are rotatably connected to the two shafts through the second connecting holes.

[0009] Preferably, the hinge includes a pin, a first limiting plate, and a second limiting plate. The first limiting plate is coaxially fixedly connected to one end of the pin, and the second limiting plate is coaxially detachably installed on the other end of the pin. The other end of the rubber connecting arm is provided with a first connecting hole, and both rubber connecting arms are rotatably connected to the pin through the first connecting hole.

[0010] Preferably, the hinge further includes a bolt and a countersunk hole, the countersunk hole being formed on the surface of the second limiting plate, and one end of the bolt passing through the countersunk hole and threaded to the end face of the pin.

[0011] Preferably, the fastener further includes an ear seat and a through hole. The ear seat is fixedly installed on the side of the base, and the through hole is formed on the surface of the ear seat. The through hole and the ear seat are used to engage screws to install the base on the side wall of the rail vehicle.

[0012] Preferably, a first limiting seat is fixedly installed on the base, and a second limiting seat is fixedly installed on the rubber connecting arm.

[0013] Preferably, the opposite sides of the first limiting seat and the second limiting seat are both set as arc surfaces.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention is used when two rail vehicles approach each other. As the distance between them gradually decreases, the two rubber connecting arms rotate at both the fixed and hinged parts to adapt to the distance between the two rail vehicles. This causes the straight-line distance between the two ends of the rubber connecting arms to gradually shorten, in order to adapt to the dynamic distance between the two rail vehicles. When the couplers of the two rail vehicles can be connected, the supporting planes on the two rubber connecting arms abut against each other to limit the movement of the two rail vehicles and prevent further movement of the rail vehicles that could damage the couplers. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of the rubber connecting arm of this utility model;

[0018] Figure 3 This is an exploded structural diagram of the hinge component of this utility model;

[0019] Figure 4 This is a schematic diagram of the main structure of the fastener of this utility model;

[0020] Figure 5 This is a schematic diagram of the connection structure between the first limiting seat and the second limiting seat of this utility model;

[0021] Figure 6 This is a schematic diagram of the non-working state of the rubber connecting arm of this utility model.

[0022] In the diagram: 1. Fixing component; 11. Shaft; 12. Base; 13. Ear seat; 14. Through hole; 2. Rubber connecting arm; 21. First connecting hole; 22. Second connecting hole; 23. Support plane; 3. Hinge component; 31. Pin; 32. First limiting plate; 33. Second limiting plate; 34. Bolt; 35. Countersunk hole; 4. First limiting seat; 5. Second limiting seat. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-6 This utility model provides a technical solution: a rubber joint limiting structure for connecting rail vehicles, used for supporting and limiting when connecting two adjacent rail vehicles. It is characterized by comprising two fixing members 1, two rubber connecting arms 2, and a hinge member 3. The two fixing members 1 are respectively fixedly installed on the side walls of the two rail vehicles. One end of each of the two rubber connecting arms 2 is rotatably connected to the two fixing members 1, and the other ends of the two rubber connecting arms 2 are hinged to each other through the hinge member 3. Each of the two rubber connecting arms 2 has a supporting plane 23, and the two supporting planes 23 abut against each other.

[0025] Please see Figure 1 and Figure 2During the connection process of rail vehicles, before the couplers make contact, one end of the rubber connecting arm 2 can rotate on the fixing part 1, and the other end of the two rubber connecting arms 2 can rotate through the hinge 3 connected at the same time. The two rubber connecting arms 2 abut against each other through the support plane 23 at their ends, forming a stable V-shaped frame. This frame provides rigid limit in the horizontal direction to prevent the rail vehicle from getting too close and damaging the coupler. The direct contact of the support plane 23 transforms the potentially destructive rigid lateral impact force that the coupler may bear into controllable compressive and shear stresses acting on the rubber connecting arm 2, which are dissipated through the elastic deformation of the rubber. This creates ideal conditions for the subsequent accurate and stable connection of the coupler, significantly improving the reliability of the connection process and the service life of the coupler.

[0026] The fastener 1 includes a shaft 11 and a base 12. The shaft 11 is fixedly connected to the base 12. Each of the two rubber connecting arms 2 has a second connecting hole 22 at one end. The two rubber connecting arms 2 are rotatably connected to the two shafts 11 through the second connecting holes 22.

[0027] Please see Figure 4 The base 12 serves as a stable mounting foundation, anchoring the entire structure to the rail vehicle. The shaft 11 acts as a fixed pivot, engaging with the second connecting hole 22 on the rubber connecting arm 2. This allows the rubber connecting arm 2 to rotate flexibly around the shaft 11 within a certain angle range during relative movement between the vehicles, adapting to complex relative position changes between them.

[0028] The hinge 3 includes a pin 31, a first limiting plate 32 and a second limiting plate 33. The first limiting plate 32 is coaxially fixedly connected to one end of the pin 31, and the second limiting plate 33 is coaxially detachably installed on the other end of the pin 31. The other end of the rubber connecting arm 2 is provided with a first connecting hole 21, and both rubber connecting arms 2 are rotatably connected to the pin 31 through the first connecting hole 21.

[0029] Please see Figure 3 The pin 31 serves as the core connecting component, allowing the two rubber connecting arms 2 to rotate relative to each other. The first limiting plate 32 and the second limiting plate 33 clamp the rubber connecting arms 2 from both sides, forming a stable hinge point. This ensures the integrity of the structure while allowing the rubber connecting arms 2 to flexibly adjust their angles during the connection process.

[0030] The hinge 3 also includes a bolt 34 and a countersunk hole 35. The countersunk hole 35 is formed on the surface of the second limiting plate 33. One end of the bolt 34 passes through the countersunk hole 35 and is threaded to the end face of the pin 31.

[0031] Please see Figure 3Bolt 34 passes through the countersunk hole 35 of the first limiting plate 32 and connects with the threaded hole at the end of the pin 31, firmly pressing the first limiting plate 32 onto the rubber connecting arm 2. The design of the countersunk hole 35 ensures that the head of bolt 34 does not protrude from the surface of the first limiting plate 32, avoiding interference or safety hazards that may be caused by protrusions.

[0032] The fastener 1 also includes a lug 13 and a through hole 14. The lug 13 is fixedly installed on the side of the base 12, and the through hole 14 is opened on the surface of the lug 13. The through hole 14 and the lug 13 are used to engage screws to install the base 12 on the side wall of the rail vehicle.

[0033] Please see Figure 4 The ear seat 13 structure increases the connection area and connection points between the base 12 and the side wall of the car body, while the through hole 14 provides a channel for high-strength mounting screws, distributing the complex load borne by the entire structure to the frame of the railcar body. Typically, multiple ear seats 13 are set on the base 12, and a set of screws are used to fix them through multiple through holes 14, forming a distributed connection mode. This design greatly enhances the fatigue strength of the connection interface under repeated impact loads, prevents the base 12 from deforming or the screws from breaking due to stress concentration, and ensures a reliable connection with the railcar even under harsh working conditions.

[0034] Example 2

[0035] Because the rubber connecting arm 2 will rotate under the action of gravity in its natural state, causing one end of the rubber connecting arm 2 to overlap on the track, affecting the connection between the two rail vehicles, in this embodiment, a first limiting seat 4 is fixedly installed on the base 12 and a second limiting seat 5 is fixedly installed on the rubber connecting arm 2. The opposite sides of the first limiting seat 4 and the second limiting seat 5 are both set as arc surfaces.

[0036] Please see Figures 4 to 6 When the rubber connecting arm 2 rotates under the action of gravity, it will drive the second limiting seat 5 to rotate synchronously. At this time, the second limiting seat 5 will revolve around the shaft 11 until it comes into contact with the first limiting seat 4. At this time, under the action of gravity, the second limiting seat 5 will have a tendency to rotate clockwise, but the first limiting seat 4 will hinder the rotation of the second limiting seat 5, thus realizing the continued rotation of the rubber connecting arm 2. This allows the rubber connecting arm 2 to maintain a slightly tilted state, which not only prevents one end of the rubber connecting arm 2 from contacting the track and affecting the connection between the two rail vehicles, but also allows it to rotate upwards due to the tilted state when the two rubber connecting arms 2 rotate.

[0037] Although 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 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 appended claims and their equivalents.

Claims

1. A rubber joint limiting structure for connecting rail vehicles, used for supporting and limiting the connection between two adjacent rail vehicles, characterized in that, It includes two fixing parts (1), two rubber connecting arms (2) and a hinge (3). The two fixing parts (1) are fixedly installed on the side walls of the two rail vehicles respectively. One end of the two rubber connecting arms (2) is rotatably connected to the two fixing parts (1) respectively, and the other end of the two rubber connecting arms (2) is hinged to each other through the hinge (3). Supporting planes (23) are provided on both rubber connecting arms (2), and the two supporting planes (23) abut against each other.

2. The rubber joint limiting structure for connecting rail vehicles according to claim 1, characterized in that, The fastener (1) includes a shaft (11) and a base (12). The shaft (11) is fixedly connected to the base (12). One end of each of the two rubber connecting arms (2) is provided with a second connecting hole (22). The two rubber connecting arms (2) are rotatably connected to the two shafts (11) through the second connecting holes (22).

3. The rubber joint limiting structure for connecting rail vehicles according to claim 2, characterized in that, The hinge (3) includes a pin (31), a first limiting plate (32) and a second limiting plate (33). The first limiting plate (32) is coaxially fixedly connected to one end of the pin (31), and the second limiting plate (33) is coaxially detachably installed on the other end of the pin (31). The other end of the rubber connecting arm (2) is provided with a first connecting hole (21). Both rubber connecting arms (2) are rotatably connected to the pin (31) through the first connecting hole (21).

4. The rubber joint limiting structure for connecting rail vehicles according to claim 3, characterized in that, The hinge (3) also includes a bolt (34) and a countersunk hole (35). The countersunk hole (35) is opened on the surface of the second limiting plate (33). One end of the bolt (34) passes through the countersunk hole (35) and is threaded to the end face of the pin (31).

5. The rubber joint limiting structure for connecting rail vehicles according to claim 1, characterized in that, The fastener (1) also includes an ear seat (13) and a through hole (14). The ear seat (13) is fixedly installed on the side of the base (12). The through hole (14) is opened on the surface of the ear seat (13). The through hole (14) and the ear seat (13) are used to cooperate with screws to install the base (12) on the side wall of the rail vehicle.

6. The rubber joint limiting structure for connecting rail vehicles according to claim 2, characterized in that, A first limiting seat (4) is fixedly installed on the base (12), and a second limiting seat (5) is fixedly installed on the rubber connecting arm (2).

7. A rubber joint limiting structure for connecting rail vehicles according to claim 6, characterized in that, The opposite sides of the first limiting seat (4) and the second limiting seat (5) are both set as arc surfaces.

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