A rubber sheath structure for compensating displacement rail transit connectors

By designing an adjustable rubber sleeve structure, the problem that existing rubber sleeves cannot simultaneously achieve displacement compensation and angle adjustment has been solved, thus improving the applicability and stability of rail transit connectors.

CN224277163UActive Publication Date: 2026-05-26YANGZHOU GAOXIN RUBBER & PLASTIC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANGZHOU GAOXIN RUBBER & PLASTIC
Filing Date
2025-02-21
Publication Date
2026-05-26

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Abstract

This utility model relates to the field of protective sleeve technology, specifically a rubber protective sleeve structure for a displacement-compensating rail transit connector. It includes a first rubber sleeve and second rubber sleeves at the upper and lower ends of the first rubber sleeve. Both ends of the first and second rubber sleeves are provided with connecting mechanisms. Each connecting mechanism includes a mounting plate, a connecting ring, and a compression ring. The mounting plate is located at both ends of the first and second rubber sleeves. The connecting ring is fixedly connected to the outer surface of the mounting plate, and the compression ring is threaded into the interior of the connecting ring. In this utility model, the first rubber sleeve can extend to both ends to provide displacement compensation. The second rubber sleeve is made of flexible rubber material and does not affect the angle adjustment of the internal coupler. This allows the first rubber sleeve and the two second rubber sleeves to work together, improving the applicability of couplers or buffers and protecting both, thus enhancing the device's adaptability.
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Description

Technical Field

[0001] This utility model relates to the field of sheath technology, specifically a rubber sheath structure for a displacement-compensating rail transit connector. Background Technology

[0002] The rubber sheath structure for displacement-compensating rail transit connectors is a key component used in rail transit systems to absorb vibration, compensate for displacement, and ensure connection stability. The surface of the rubber sheath may be designed with a corrugated shape, which increases the rubber's deformability and better compensates for displacement. This type of rubber sheath structure is widely used in connectors of rail transit systems, such as coupler buffer devices, hydraulic shock absorber connectors, and air springs, to ensure the stability and reliability of the system. However, existing devices have certain drawbacks in use. For example, when used in coupler buffer devices and hydraulic shock absorber connectors, the former not only needs to consider displacement compensation but also angle adjustment. Otherwise, when the train makes a small turn, the sheath will obstruct it, resulting in reduced sheath adaptability. Utility Model Content

[0003] The purpose of this invention is to provide a rubber sheath structure for compensating displacement rail transit connectors to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A rubber sleeve structure for a displacement-compensating rail transit connector includes a first rubber sleeve and a second rubber sleeve in the direction of the upper and lower ports of the first rubber sleeve.

[0006] Both ends of the first and second rubber sleeves are provided with connecting mechanisms. The connecting mechanisms include mounting plates, connecting rings, and compression rings. The mounting plates are located at both ends of the first and second rubber sleeves. The connecting rings are fixedly connected to the outer surface of the mounting plates, and the compression rings are threadedly connected to the inside of the connecting rings.

[0007] The first rubber sleeve has a buffer mechanism inside, which includes a connecting cylinder and a sliding rod. The connecting cylinder is located inside the first rubber sleeve, and the sliding rod is embedded and movably connected to both ends of the connecting cylinder.

[0008] Furthermore, the outer surface of the mounting plate has a through hole near the center, a limit groove near the connecting ring, and mounting holes near the four corners.

[0009] Furthermore, bolts are embedded in the outer surface of the mounting plate, and nuts are threaded onto the outer surface of the bolts, with adjacent mounting plates connected by bolts.

[0010] Furthermore, a flat mounting ring is integrally injection molded at the port positions of the first and second rubber sleeves, and the extrusion ring is connected to the mounting ring and the mounting plate.

[0011] Furthermore, the buffer mechanism also includes a threaded sleeve and a connecting post. The threaded sleeve is threadedly connected to the upper and lower ports of the connecting cylinder, and the connecting post is threadedly connected to the lower end of the slide rod.

[0012] Furthermore, a rubber piston is bonded to the lower end of the connecting column, and the slide rod is slidably connected to the connecting cylinder through the rubber piston.

[0013] Furthermore, a spring is placed inside the connecting cylinder, and limit plates are fixedly connected to both ends of the slide rod.

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

[0015] 1. The first rubber sleeve is compressed under force, and at the same time the slide rod moves inward, which, together with the connecting column and the rubber piston, squeezes the spring. The spring absorbs the external force and resets the first rubber sleeve through the elastic force. The rubber piston and the connecting cylinder are slidably connected to provide damping force to prevent the spring from shaking continuously and improve the buffering capacity of the first rubber sleeve.

[0016] 2. The first rubber sleeve can extend to both ends to provide displacement compensation. The second rubber sleeve is made of flexible rubber material and does not affect the angle adjustment of the internal coupler. The first rubber sleeve and the two second rubber sleeves are used together to improve the applicability of the device for couplers or buffers and to protect both of them. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the connection mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the disassembled structure of the connecting mechanism and the second rubber sleeve of this utility model;

[0020] Figure 4 This is a schematic diagram of the limiting groove structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the disassembled structure of the buffer mechanism of this utility model.

[0022] In the diagram: 1. Connecting mechanism; 101. Mounting plate; 102. Through hole; 103. Limiting groove; 104. Connecting ring; 105. Extrusion ring; 106. Mounting hole; 2. First rubber sleeve; 201. Second rubber sleeve; 3. Bolt; 301. Nut; 4. Buffering mechanism; 401. Connecting cylinder; 402. Threaded sleeve; 403. Connecting column; 404. Rubber piston; 405. Slide rod; 406. Limiting plate; 407. Spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 1-5 In this embodiment of the utility model, a rubber sleeve structure for a displacement-compensating rail transit connector includes a first rubber sleeve 2 and a second rubber sleeve 201 in the upper and lower port directions of the first rubber sleeve 2.

[0025] Both ends of the first rubber sleeve 2 and the second rubber sleeve 201 are provided with a connecting mechanism 1. The connecting mechanism 1 includes a mounting plate 101, a connecting ring 104 and a compression ring 105. The mounting plate 101 is located at both ends of the first rubber sleeve 2 and the second rubber sleeve 201. The connecting ring 104 is fixedly connected to the outer surface of the mounting plate 101, and the compression ring 105 is threadedly connected to the inside of the connecting ring 104.

[0026] The first rubber sleeve 2 is provided with a buffer mechanism 4 inside. The buffer mechanism 4 includes a connecting cylinder 401 and a sliding rod 405. The connecting cylinder 401 is located inside the first rubber sleeve 2, and the sliding rod 405 is embedded and movably connected to both ends of the connecting cylinder 401.

[0027] A through hole 102 is provided on the outer surface of the mounting plate 101 near the center position, a limit groove 103 is provided on the outer surface of the mounting plate 101 near the connecting ring 104, and mounting holes 106 are provided on the outer surface of the mounting plate 101 near the four corners.

[0028] Specifically, when the device is used for dust protection of the buffer or coupler connection position, it is installed on the outside of the buffer or coupler through the mounting hole 106 and the external threaded assembly, so that the protected component is located inside the first rubber sleeve 2 and the second rubber sleeve 201. The first rubber sleeve 2 can extend to both ends to provide displacement compensation. The second rubber sleeve 201 is made of flexible rubber material and does not affect the internal angle adjustment of the coupler. The first rubber sleeve 2 and the two second rubber sleeves 201 are used together to improve the applicability of the device for couplers or buffers and to protect both. There are six connecting mechanisms 1. Rotating the compression ring 105, under the push of the thread, the compression ring 105 moves along the inner wall of the connecting ring 104, so that the compression ring 105 cooperates with the mounting plate 101 to install the first rubber sleeve 2 or the second rubber sleeve 201. The buffer mechanism 4 is used to absorb part of the force generated when the first rubber sleeve 2 is compressed and assists the first rubber sleeve 2 in resetting.

[0029] Example 1

[0030] like Figure 1-4 As shown, bolts 3 are embedded in the outer surface of the mounting plate 101, and nuts 301 are threaded onto the outer surface of the bolts 3. Adjacent mounting plates 101 are connected by bolts 3.

[0031] In this embodiment, both ends of the second rubber sleeve 201 and the first rubber sleeve 2 are connected by mounting plates 101. The mounting plates 101 are connected by bolts 3, and the through holes 102 reserved on the mounting plates 101 can be installed at the connection position of the carriage with external threaded components.

[0032] like Figure 1-4 As shown, a flat mounting ring is integrally injection molded at the port positions of the first rubber sleeve 2 and the second rubber sleeve 201, and the extrusion ring 105 is connected to the mounting ring and the mounting plate 101.

[0033] In this embodiment, one end face of the compression ring 105 contacts the mounting ring and applies a force to the mounting ring, so that the mounting ring and the mounting plate 101 are in close contact, thus completing the connection between the first rubber sleeve 2 and the second rubber sleeve 201 and the connecting mechanism 1.

[0034] Example 2

[0035] Based on Embodiment 1, in order to overcome the problem that it is inconvenient to reset the first rubber sleeve 2 after it is compressed in Embodiment 1.

[0036] like Figure 1-4As shown, the buffer mechanism 4 also includes a threaded sleeve 402 and a connecting post 403. The threaded sleeve 402 is threaded to the upper and lower ends of the connecting cylinder 401, and the connecting post 403 is threaded to the lower end of the slide rod 405. A rubber piston 404 is bonded to the lower end of the connecting post 403. A spring 407 is placed inside the connecting cylinder 401, and the slide rod 405 is slidably connected to the connecting cylinder 401 through the rubber piston 404.

[0037] In this embodiment, the first rubber sleeve 2 is compressed under force, while the slide rod 405 moves inward, cooperating with the connecting column 403 and the rubber piston 404 to compress the spring 407. The spring 407 absorbs the external force and resets the first rubber sleeve 2 through its elasticity. The rubber piston 404 and the connecting cylinder 401 are slidably connected to provide damping force to prevent the spring 407 from continuously vibrating. The threaded sleeve 402 and the connecting cylinder 401 are threadedly connected to limit the rubber piston 404.

[0038] like Figure 1-5 As shown, both ends of the slide bar 405 are fixedly connected to limit plates 406.

[0039] In this embodiment, the limiting plate 406 and the limiting groove 103 are matched. Similarly, the connecting ring 104 cooperates with the compression ring 105 to limit the movement.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rubber sleeve structure for a displacement-compensating rail transit connector, comprising a first rubber sleeve (2) and a second rubber sleeve (201) in the upper and lower port directions of the first rubber sleeve (2); Its features are, Both ends of the first rubber sleeve (2) and the second rubber sleeve (201) are provided with connecting mechanisms (1), and the connecting mechanisms (1) include: Mounting plate (101) is located at both ends of the first rubber sleeve (2) and the second rubber sleeve (201); A connecting ring (104) is fixedly connected to the outer surface of the mounting plate (101); The compression ring (105) is threaded into the interior of the connecting ring (104); The first rubber sleeve (2) is provided with a buffer mechanism (4) inside, the buffer mechanism (4) including: The connecting sleeve (401) is located inside the first rubber sleeve (2); The slide bar (405) is embedded in and movably connected to both ends of the connecting cylinder (401).

2. The rubber sheath structure for compensated displacement rail transit connectors according to claim 1, characterized in that, The mounting plate (101) has a through hole (102) near the center on its outer surface, a limiting groove (103) near the connecting ring (104) on its outer surface, and mounting holes (106) near the four corners on its outer surface.

3. The rubber sheath structure for compensated displacement rail transit connectors according to claim 1, characterized in that, Bolts (3) are embedded in the outer surface of the mounting plate (101), and nuts (301) are threaded onto the outer surface of the bolts (3). Adjacent mounting plates (101) are connected by bolts (3).

4. The rubber sheath structure for compensated displacement rail transit connectors according to claim 1, characterized in that, The first rubber sleeve (2) and the second rubber sleeve (201) have a flat mounting ring integrally injection molded at their port positions, and the extrusion ring (105) is connected to the mounting ring and the mounting plate (101).

5. The rubber sheath structure for compensated displacement rail transit connectors according to claim 1, characterized in that, The buffer mechanism (4) further includes: Threaded sleeve (402) is threaded to the upper and lower ends of connecting sleeve (401); The connecting post (403) is threaded to the lower end of the slide rod (405).

6. The rubber sheath structure for compensated displacement rail transit connectors according to claim 5, characterized in that, A rubber piston (404) is bonded to the lower end of the connecting column (403), and the slide rod (405) is slidably connected to the connecting cylinder (401) through the rubber piston (404).

7. The rubber sheath structure for compensated displacement rail transit connectors according to claim 5, characterized in that, A spring (407) is placed inside the connecting cylinder (401), and limit plates (406) are fixedly connected to both ends of the slide rod (405).