Laminated corrugated shock absorber dustproof device

By employing multiple limiting and sealing designs in the laminated corrugated shock absorber, the problem of connection fragility caused by flexible connectors is solved, improving service life and sealing performance, adapting to the thermal expansion and contraction of materials, and enhancing the stability of the device.

CN224201037UActive Publication Date: 2026-05-05HUNAN LUOSHENG GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN LUOSHENG GRP CO LTD
Filing Date
2025-06-12
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The use of flexible connectors in existing laminated corrugated shock absorbers results in fragile connection points, affecting service life and practicality, and failing to effectively adapt to the thermal expansion and contraction of materials.

Method used

It adopts components such as laminated tubes, connecting blocks, mounting rings, limiting holes, screws, positioning frames, and sealing mechanisms. Through multiple limiting and sealing designs, it enhances connection stability and sealing performance, and adapts to the thermal expansion and contraction of materials.

Benefits of technology

It improves the service life and practicality of the device, extends the stability and sealing of the equipment, and enhances its adaptability to thermal expansion and contraction.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of corrugated shock absorbers, and discloses a laminated corrugated shock absorber dustproof device which comprises a laminated pipe, the outer wall of the laminated pipe is fixedly connected with a plurality of connecting blocks, the outer walls of the connecting blocks are fixedly connected with mounting rings, the inner walls of the mounting rings are provided with a plurality of limiting holes, and the limiting holes are fixedly connected with the connecting blocks. A plurality of fixing blocks are fixedly connected to the position, close to the edge, of the outer wall of the mounting ring, a screw rod is slidably connected to the inner wall of the limiting hole, a positioning frame is arranged on the outer wall of the screw rod, a first bolt is slidably connected to the inner wall of the positioning frame, and a positioning block is arranged in the middle of the outer wall of the first bolt; a first nut is arranged on the outer wall, close to the edge, of the screw rod. According to the utility model, after the mounting ring is connected with the connected part, the screw rod is inserted into the limiting hole, so that the purposes of multiple limiting and reserving of a limiting space for a thermal expansion and cold contraction position are achieved, the practicability is improved, and the service life is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of corrugated shock absorber technology, and in particular to a dustproof device for a laminated corrugated shock absorber. Background Technology

[0002] A multilayer corrugated damper is a device used for vibration control in engineering structures. It combines the characteristics of damping and corrugated structure. It consists of multiple layers of materials, including metal plates and damping materials. The layers are stacked on top of each other in a corrugated form, which increases the stiffness and stability of the structure. The multilayer corrugated structure allows the damper to adapt to different types of vibration modes. When the engineering structure vibrates, the corrugated structure inside the damper can disperse and absorb vibration energy, generating heat during vibration and converting vibration energy into thermal energy, thereby reducing the vibration transmitted to the structure. The corrugated design helps control the displacement of the damper and maintain its stability during vibration.

[0003] When the temperature rises, the metal and rubber materials used in the shock absorber expand, causing the shock absorber to increase in size. Conversely, when the temperature drops, the materials contract, potentially causing the shock absorber to decrease in size. This leads to changes in the stiffness and damping characteristics of the shock absorber, thus affecting its damping effect. Existing technologies often use flexible connectors to accommodate the thermal expansion and contraction of materials. However, flexible connectors make the connection points more fragile, resulting in a reduced service life and decreased usability. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a dustproof device for a laminated corrugated shock absorber, which aims to improve the existing laminated corrugated shock absorbers, which mostly use flexible connectors to adapt to the thermal expansion and contraction of materials. This makes the connection points relatively fragile, resulting in a reduced service life and decreased practicality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a dustproof device for a laminated corrugated shock absorber, comprising a laminated tube, wherein multiple connecting blocks are fixedly connected to the outer wall of the laminated tube, and an mounting ring is fixedly connected to the outer wall of each connecting block. Multiple limiting holes are provided on the inner wall of the mounting ring, and multiple fixing blocks are fixedly connected to the outer wall of the mounting ring near its edge. A screw is slidably connected to the inner wall of the limiting holes, and a positioning frame is provided on the outer wall of the screw. A bolt is slidably connected to the inner wall of the positioning frame, and a positioning block is provided in the middle of the outer wall of the bolt. A nut is provided on the outer wall of the screw near its edge. A sealing mechanism is fixedly connected to the top of the laminated tube, and the sealing mechanism is used to enhance the sealing performance.

[0006] As a further description of the above technical solution:

[0007] The sealing mechanism includes a hollow ring, a sealing tube slidably connected to the inner wall of the hollow ring, a plurality of abutments fixedly connected to the outer wall of the sealing tube, a rotating ring rotatably connected to the top of the stacked tube near the edge, a plurality of positioning holes being opened on the inner wall of the rotating ring, screws being threadedly connected to the inner wall of the positioning holes, and a rotating block being fixedly connected to the top of the rotating ring.

[0008] As a further description of the above technical solution:

[0009] The outer wall of the rotating block fits against the bottom of the abutment block, and a sealing ring is fixedly connected to the top of the sealing tube.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the screw is provided with a washer, and the inner wall of the washer is slidably connected to the outer wall of the screw.

[0012] As a further description of the above technical solution:

[0013] The inner wall of the stacked tube has multiple vent holes, and a filter plate is fixedly connected to the inner wall of the vent holes.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the bolt is provided with a nut, and the inner wall of the nut is threadedly connected to the outer wall of the bolt.

[0016] As a further description of the above technical solution:

[0017] A sealing ring 2 is fixedly connected to the inner wall of the mounting ring, and a rubber pad is fixedly connected to the outer wall of the stacked tube near the edge.

[0018] As a further description of the above technical solution:

[0019] The bottom of the nut is provided with a washer, and the top of the washer fits against the bottom of the nut.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, after connecting the mounting ring and the connected component, the screw is inserted into the limiting hole, and then the positioning bracket is placed on the outer wall of the limiting hole. The position of the positioning bracket is then limited by rotating the nut. Then, the positioning block is placed in the middle of the inner wall of the positioning bracket, and the bolt is inserted through the fixing block. The positioning block and the positioning bracket limit the position of the positioning block, thereby limiting the position of the screw a second time. This achieves multiple limiting and provides a space for limiting the position of thermal expansion and contraction, improving practicality and extending service life.

[0022] 2. In this utility model, rotating the rotating ring drives the rotating block to rotate, which in turn squeezes the abutment block so that it can drive the sealing tube to slide inside the hollow ring, push it upward, and fit against the bottom of the top-connected mechanism, thereby sealing the inner wall of the device. Then, rotating the screw screws into the positioning hole limits the position of the rotating ring, achieving the purpose of expanding the seal, improving practicality, and extending service life. Attached Figure Description

[0023] Figure 1 This is a front perspective view of a dustproof device for a laminated corrugated shock absorber proposed in this utility model;

[0024] Figure 2 This is a partial structural diagram of a dustproof device for a laminated corrugated shock absorber proposed in this utility model;

[0025] Figure 3 for Figure 2 Enlarged view of point A;

[0026] Figure 4 This is a partial structural diagram of the positioning block of the dustproof device for a laminated corrugated shock absorber proposed in this utility model;

[0027] Figure 5 This is a partial structural diagram of the mounting ring of a dustproof device for a laminated corrugated shock absorber proposed in this utility model.

[0028] Legend:

[0029] 1. Laminated tube; 2. Sealing mechanism; 201. Abutment block; 202. Sealing tube; 203. Rotating block; 204. Hollow ring; 205. Screw; 206. Positioning hole; 207. Rotating ring; 3. Mounting ring; 4. Positioning block; 5. Nut 1; 6. Bolt 1; 7. Positioning bracket; 8. Fixing block; 9. Limiting hole; 10. Connecting block; 11. Vent; 12. Filter plate; 13. Rubber gasket; 14. Nut 2; 15. Gasket 1; 16. Gasket 2; 17. Sealing ring 1; 18. Sealing ring 2; 19. Screw. Detailed Implementation

[0030] 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.

[0031] Please see the appendix Figure 1 - Appendix Figure 3This utility model provides an embodiment of a dustproof device for a laminated corrugated shock absorber, comprising a laminated tube 1, with multiple connecting blocks 10 fixedly connected to the outer wall of the laminated tube 1. The laminated tube 1 is used for shock absorption and buffering using its own elasticity. An installation ring 3 is fixedly connected to the outer wall of the connecting blocks 10. Multiple limiting holes 9 are opened on the inner wall of the installation ring 3. The installation ring 3 is used to provide a foundation for installation. Multiple fixing blocks 8 are fixedly connected to the outer wall of the installation ring 3 near the edge. A screw 19 is slidably connected to the inner wall of the limiting holes 9. A positioning frame 7 is provided on the outer wall of the screw 19. The fixing blocks 8 are used to provide a platform for the installation of other structures. A bolt 6 is slidably connected to the inner wall of the positioning frame 7. A positioning block 4 is provided in the middle of the outer wall of the bolt 6. The bolt 6 is used to perform secondary positioning of the positioning frame 7 and the fixing blocks 8. A nut 5 is provided on the outer wall of the screw 19 near the edge. A sealing mechanism 2 is fixedly connected to the top of the laminated tube 1. The sealing mechanism 2 is used to enhance the sealing performance. The nut 5 is used to limit the position of the screw 19.

[0032] Specifically, the laminated tube 1 can absorb and buffer some energy through its own elastic deformation, thereby playing a preliminary shock absorption role. The connecting block 10 has multiple mounting holes, which facilitates the subsequent fixing of the mounting ring 3. The number of fixing blocks 8 corresponds to the limiting holes 9. Its function is to provide mounting positioning points for other components. The main function of the positioning frame 7 is to provide a mounting platform for other components and ensure that the relative positions between each component are accurate. By rotating the nut 5, the tightness of the screw 19 can be adjusted to ensure the structural stability of the entire device and improve its service life.

[0033] Please see the appendix Figure 1 - Appendix Figure 3 The sealing mechanism 2 includes a hollow ring 204, the inner wall of which is slidably connected to a sealing tube 202. The hollow ring 204 is used to guide the sealing tube 202 to slide within it. Multiple abutments 201 are fixedly connected to the outer wall of the sealing tube 202. A rotating ring 207 is rotatably connected to the top of the stacked tube 1 near its edge. Multiple positioning holes 206 are provided on the inner wall of the rotating ring 207. The positioning holes 206 are used to position the rotating ring 207. Screws 205 are threadedly connected to the inner wall of the positioning holes 206. A rotating block 203 is fixedly connected to the top of the rotating ring 207. The abutments 201 are pushed upward by the rotating block 203.

[0034] Specifically, the rotating ring 207 is the power transmission component in the sealing mechanism 2 that enables the movement of the sealing tube 202. It converts external force into linear motion of the sealing tube 202 through rotation. The positioning hole 206 is used for threaded connection with the screw 205. During installation and debugging, the initial position of the rotating ring 207 can be adjusted by screwing the screw 205 into different positioning holes 206. In addition, the positioning hole 206 can also lock the rotating ring 207 when needed to prevent it from rotating accidentally during operation.

[0035] Please see the appendix Figure 1 - Appendix Figure 3 The outer wall of the rotating block 203 fits against the bottom of the abutment block 201. A sealing ring 17 is fixedly connected to the top of the sealing tube 202. The fitting rotating block 203 and abutment block 201 ensure that the rotating block 203 can squeeze the abutment block 201 to move. Multiple vent holes 11 are opened on the inner wall of the stacked tube 1. A filter plate 12 is fixedly connected to the inner wall of the vent hole 11. The sealing ring 17 improves the airtightness of the top of the sealing tube 202. A gasket 16 is provided on the outer wall of the screw 205. The inner wall of the gasket 16 is slidably connected to the outer wall of the screw 205. The vent hole 11 is used to release the high pressure generated during shock absorption.

[0036] Specifically, when screw 205 is tightened, washer 2 16 is compressed between the head of screw 205 and rotating ring 207, increasing the friction between screw 205 and rotating ring 207, thereby improving the tightening effect of screw 205 and preventing screw 205 from loosening during operation. In addition, washer 2 16 can also play a certain role in buffering and shock absorption, reducing the impact of external vibration on the connection of screw 205, further enhancing the stability of sealing mechanism 2 and the entire dustproof device. Filter plate 12 can ensure the smooth passage of high-pressure gas and effectively intercept dust and particulate impurities.

[0037] Please see the appendix Figure 3 - Appendix Figure 5 The outer wall of bolt 6 is provided with nut 14, and the inner wall of nut 14 is threaded to the outer wall of bolt 6. Nut 14 is used to limit the position of bolt 6. The bottom of nut 5 is provided with washer 15, and the top of washer 15 fits against the bottom of nut 5. Washer 15 is used to increase the contact area between nut 5 and the mounting surface. The inner wall of mounting ring 3 is fixedly connected with sealing ring 18. The outer wall of stacked tube 1 is fixedly connected with rubber pad 13 near the edge. Sealing ring 18 is used to improve the sealing performance of the inner wall of mounting ring 3.

[0038] Specifically, after the device is installed, the sealing ring 18 will fit tightly against the outer wall of the laminated tube 1 to form a sealed annular space. When there are pressure changes inside the device or when it is invaded by external dust, moisture and other impurities, the sealing ring 18 can effectively prevent the impurities from entering due to its good elasticity and sealing performance. The gasket 15 can provide sufficient strength to withstand the pressure transmitted by the nut 5.

[0039] Working principle: When the device needs to be connected to other structures, first connect the mounting ring 3 to the corresponding structure, then insert the screw 19 into the limiting hole 9, then put the positioning frame 7 on the upper and lower ends of the screw 19 respectively, and then screw a nut 5 on the outer wall of the screw 19 to initially connect the mounting ring 3. Then, bolt 6 passes through the positioning frame 7 and the fixing block 8, and at the same time, the positioning block 4 is put on the outer wall of bolt 6. Finally, screw nut 14 on both ends of bolt 6 to limit the position of bolt 6, while the positioning block 4 can further limit the position of screw 19.

[0040] After the installation of the device is completed, rotating the rotating ring 207 causes the rotating block 203 to rotate together, thereby pressing the abutment block 201, which allows the sealing tube 202 to slide upward from inside the hollow ring 204, thus adhering to the top structure and enhancing the sealing between it and the sealing tube 202. Then, the screw 205 is rotated and screwed into the inner wall of the positioning hole 206, thereby limiting the rotation of the rotating ring 207.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dustproof device for a laminated corrugated shock absorber, comprising a laminated tube (1), characterized in that: Multiple connecting blocks (10) are fixedly connected to the outer wall of the stacked tube (1). An installation ring (3) is fixedly connected to the outer wall of the connecting block (10). Multiple limiting holes (9) are opened on the inner wall of the installation ring (3). Multiple fixing blocks (8) are fixedly connected to the outer wall of the installation ring (3) near the edge. A screw (19) is slidably connected to the inner wall of the limiting hole (9). A positioning frame (7) is provided on the outer wall of the screw (19). A bolt (6) is slidably connected to the inner wall of the positioning frame (7). A positioning block (4) is provided in the middle of the outer wall of the bolt (6). A nut (5) is provided on the outer wall of the screw (19) near the edge. A sealing mechanism (2) is fixedly connected to the top of the stacked tube (1). The sealing mechanism (2) is used to enhance the sealing performance.

2. The dustproof device for a laminated corrugated shock absorber according to claim 1, characterized in that: The sealing mechanism (2) includes a hollow ring (204), the inner wall of which is slidably connected to a sealing tube (202), the outer wall of which is fixedly connected to a plurality of abutments (201), the top of the stacked tube (1) is rotatably connected to a rotating ring (207) near the edge, the inner wall of which is provided with a plurality of positioning holes (206), the inner wall of which is threaded with screws (205), and the top of which is fixedly connected to a rotating block (203).

3. The dustproof device for a laminated corrugated shock absorber according to claim 2, characterized in that: The outer wall of the rotating block (203) is in contact with the bottom of the abutment block (201), and a sealing ring (17) is fixedly connected to the top of the sealing tube (202).

4. The dustproof device for a laminated corrugated shock absorber according to claim 2, characterized in that: The outer wall of the screw (205) is provided with a washer two (16), and the inner wall of the washer two (16) is slidably connected to the outer wall of the screw (205).

5. The dustproof device for a laminated corrugated shock absorber according to claim 1, characterized in that: The inner wall of the stacked tube (1) is provided with a plurality of vent holes (11), and a filter plate (12) is fixedly connected to the inner wall of the vent holes (11).

6. The dustproof device for a laminated corrugated shock absorber according to claim 1, characterized in that: The outer wall of the bolt (6) is provided with a nut (14), and the inner wall of the nut (14) is threadedly connected to the outer wall of the bolt (6).

7. The dustproof device for a laminated corrugated shock absorber according to claim 1, characterized in that: The inner wall of the mounting ring (3) is fixedly connected with a sealing ring 2 (18), and the outer wall of the stacked tube (1) is fixedly connected with a rubber pad (13) near the edge.

8. The dustproof device for a laminated corrugated shock absorber according to claim 1, characterized in that: The bottom of the nut (5) is provided with a washer (15), and the top of the washer (15) is in contact with the bottom of the nut (5).