A damper

Abstract

This invention relates to the field of damper technology, and more particularly to a damper comprising a fluid holding chamber, a sleeve, and a central shaft. The fluid holding chamber is movably sleeved outside the sleeve, and the central shaft is movably mounted in the sleeve and the fluid holding chamber. A barrier mechanism to prevent fluid leakage is provided between the fluid holding chamber, the sleeve, and the central shaft. This invention increases the fluid blocking capacity between the fluid holding chamber and the sleeve, and between the sleeve and the central shaft by adding a crushing rib between the fluid holding chamber, the sleeve, and the central shaft. The upper and lower ends of the crushing rib are connected to the connection points between the fluid holding chamber and the central shaft, and between the sleeve and the central shaft, respectively, ensuring that the crushing rib can block fluids with higher pressure. The annular bands on the inner walls of the fluid holding chamber and the sleeve can limit the vertical movement of the central shaft, ensuring that the pressure received by the crushing rib is not too high, thereby preventing damage to the crushing rib and improving the service life of the equipment.

Description

Technical Field

[0001] This application relates to the field of damper technology, and more particularly to a damper. Background Technology

[0002] A damper is a device that provides resistance to motion and dissipates kinetic energy. Various types of dampers (or shock absorbers) have long been used in industries such as aerospace, aviation, military, artillery, and automobiles to reduce vibration and dissipate energy. Since the 1970s, these technologies have been gradually applied to structural engineering projects such as buildings, bridges, and railways, and their development has been very rapid. In particular, the hydraulic viscous damper, with over fifty years of history, underwent extensive experimentation, rigorous review, repeated demonstrations, and especially a long process of earthquake testing before being accepted by the structural engineering community in the United States.

[0003] An investigation of the internal structure of existing damper products revealed that the resistance-generating component (central shaft) and the fluid retention chamber (outer shell, toothed cover) utilize an elastic component (sealing ring) to achieve a sealing function. The design employs a transverse pressing connection between the resistance-generating component and the sealing ring, using lateral force to achieve a circumferential seal. However, in actual use, uneven force distribution at both ends of the shaft leads to inconsistent force distribution across the entire circumference of the sealing ring. After repeated use, this results in uneven wear of the sealing ring, causing oil leakage. Summary of the Invention

[0004] The purpose of this invention is to provide a damper to solve the problems mentioned in the background art.

[0005] The embodiments of this application adopt the following technical solutions:

[0006] A damper includes a fluid holding chamber, a sleeve, and a central shaft. The fluid holding chamber is movably sleeved outside the sleeve, and the central shaft is movably mounted in the sleeve and the fluid holding chamber. A barrier mechanism to prevent fluid leakage is provided between the fluid holding chamber, the sleeve, and the central shaft. An annular mounting groove is formed on the lower surface of the fluid holding chamber, and the annular mounting groove is located on the contact sidewall of the fluid holding chamber and the central shaft. A crushing rib is movably mounted in the annular mounting groove, and the lower surface of the crushing rib is movably mounted on the upper surface of the central shaft. An annular band is provided on the lower surface of the fluid holding chamber, and the annular band is in contact with the upper surface of the central shaft. An annular mounting groove is also formed on the inner sidewall of the sleeve, and a crushing rib is also installed at the position where the sleeve and the central shaft are in contact. An annular band is also installed on the sidewall of the sleeve that contacts the central shaft.

[0007] Preferably, the lower surface of the fluid holding chamber is provided with a insertion groove, the sleeve is movably engaged in the insertion groove, and a sealing ring is movably installed on the part of the sleeve in the insertion groove, and the sealing ring is also movably engaged in the fluid holding chamber.

[0008] Preferably, the fluid holding chamber is provided with an auxiliary assembly locking mechanism, which includes a rectangular locking block and a limiting block. The rectangular locking block and the limiting block are both fixedly installed on the outer side wall of the sleeve. The rectangular locking block and the limiting block are evenly and equidistantly arranged on the side wall of the sleeve, and are spaced apart. The side wall of the fluid holding chamber is provided with a limiting groove and a rectangular locking slot. The limiting groove and the rectangular locking slot correspond to the positions of the rectangular locking block and the limiting block on the sleeve. The rectangular locking block is movably locked in the rectangular locking slot, and the limiting block is movably locked in the limiting groove.

[0009] Preferably, a snap-fit ​​plate is fixedly installed on the inner side wall of the sleeve, and a snap-fit ​​component is movably snap-fitted inside the snap-fit ​​plate. The snap-fit ​​component is fixedly installed on the side wall of the central shaft, and two mounting components are fixedly installed on the side wall of the sleeve. The mounting components are movably snap-fitted into grooves opened on the side wall of the fluid holding chamber.

[0010] The above-described technical solutions adopted in the embodiments of this application can achieve the following beneficial effects:

[0011] Firstly, during damper operation, the central shaft, under force, causes the sleeve to move vertically, while the compression direction between the sleeve and the fluid holding chamber is axial. This results in the sealing ring being subjected to axial force. The insertion groove provides clearance for the sleeve's movement. Without a bushing, this avoids uneven lateral force on the sealing ring, preventing uneven wear caused by this uneven force. It ensures uniform wear across different parts of the sealing ring, reducing oil leakage and extending the damper's lifespan. Secondly, a crushing rib is added between the fluid holding chamber, the sleeve, and the central shaft to increase fluid blocking capacity between the fluid holding chamber and the sleeve, and between the sleeve and the central shaft. The upper and lower ends of the crushing rib are connected to the connection points between the fluid holding chamber and the central shaft, and between the sleeve and the central shaft, respectively. This ensures the crushing rib can block higher pressure fluids. The annular bands on the inner walls of the fluid holding chamber and the sleeve limit the vertical movement of the central shaft, preventing excessive pressure on the crushing rib and thus extending the equipment's lifespan.

[0012] Secondly, by placing the crushing rib into the sleeve, aligning the positions of the locking parts and locking plates on the central shaft, and then placing the central shaft into the sleeve, the sleeve and the central shaft are locked together. After locking, the crushing rib is fitted onto the outside of the central shaft, and the sealing ring is placed in the fluid holding chamber. Then, the fluid holding chamber is fitted onto the sleeve. The sleeve and the fluid holding chamber are fixedly installed by the locking of the rectangular locking block and the rectangular locking groove, and the locking of the limiting block and the limiting groove. This device achieves the installation of the equipment by controlling the locking between the fluid holding chamber, the sleeve, and the central shaft. During the installation process, the use of two bushing components can be eliminated, which has the advantage of reducing material costs and production processes, and also improves the speed and efficiency of assembly. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 This is a top view diagram showing the disassembled structure of the present invention;

[0016] Figure 3 This is a schematic diagram of the exploded, bottom-view structure of the present invention;

[0017] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 5 For the present invention Figure 4 A magnified structural diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Fluid holding chamber; 2. Sleeve; 3. Central shaft; 11. Rectangular slot; 12. Rectangular block; 13. Limiting groove; 14. Limiting block; 15. Mounting component; 21. Engaging component; 22. Engaging buckle plate; 23. Insertion groove; 24. Annular mounting groove; 25. Sealing ring; 26. Crushing rib; 27. Annular belt. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] The technical solutions provided by the various embodiments of this application are described in detail below with reference to the accompanying drawings.

[0022] Please see Figures 1-5 A damper includes a fluid holding chamber 1, a sleeve 2, and a central shaft 3. The fluid holding chamber 1 is movably sleeved outside the sleeve 2, and the central shaft 3 is movably installed inside the sleeve 2 and the fluid holding chamber 1. A barrier mechanism to prevent fluid leakage is provided between the fluid holding chamber 1, the sleeve 2, and the central shaft 3. An annular mounting groove 24 is provided on the lower surface of the fluid holding chamber 1, and the annular mounting groove 24 is provided on the contact side wall of the fluid holding chamber 1 and the central shaft 3. A crushing rib 26 is movably installed in the annular mounting groove 24, and the lower surface of the crushing rib 26 is movably installed on the upper surface of the central shaft 3. An annular band 27 is provided on the lower surface of the fluid holding chamber 1, and the annular band 27 is in contact with the upper surface of the central shaft 3. An annular mounting groove 24 is also provided on the inner side wall of the sleeve 2, and a crushing rib 26 is also installed at the contact position between the sleeve 2 and the central shaft 3. An annular band 27 is also installed on the side wall where the sleeve 2 and the central shaft 3 contact.

[0023] The lower surface of the fluid holding chamber 1 is provided with a insertion groove 23. The sleeve 2 is movably engaged in the insertion groove 23. A sealing ring 25 is movably installed on the part of the sleeve 2 within the insertion groove 23, and the sealing ring 25 is also movably engaged in the fluid holding chamber 1.

[0024] When the damper is in use, the central shaft 3 is subjected to force, causing the sleeve 2 to move up and down. The pressing direction between the sleeve 2 and the fluid holding chamber 1 is axial, which makes the sealing ring 25 subjected to force in the axial direction. The insertion groove 23 leaves a gap for the movement of the sleeve 2. Without the bushing, the uneven lateral force on the sealing ring 25 is avoided, which leads to uneven wear caused by uneven lateral force on the sealing ring 25. This ensures that the wear degree of different parts of the sealing ring 25 is the same, thereby reducing the occurrence of oil leakage and improving the service life of the damper. In addition, a crushing rib 26 is added between the fluid holding chamber 1, the sleeve 2, and the central shaft 3 of the damper to increase the fluid blocking capacity between the fluid holding chamber 1 and the sleeve 2, and between the sleeve 2 and the central shaft 3. The upper and lower ends of the crushing rib 26 are connected to the connection points between the fluid holding chamber 1 and the central shaft 3, and between the sleeve 2 and the central shaft 3, respectively, to ensure that the crushing rib 26 can block fluids with higher pressure. The annular band 27 on the inner wall of the fluid holding chamber 1 and the sleeve 2 can limit the vertical movement of the central shaft 3 to ensure that the pressure received by the crushing rib 26 is not too large, thereby damaging the crushing rib 26 and improving the service life of the equipment.

[0025] The fluid holding chamber 1 is equipped with an auxiliary assembly locking mechanism, which includes a rectangular locking block 12 and a limiting block 14. Both the rectangular locking block 12 and the limiting block 14 are fixedly installed on the outer side wall of the sleeve 2. The rectangular locking blocks 12 and the limiting blocks 14 are evenly and equidistantly arranged on the side wall of the sleeve 2, with intervals between them. A limiting groove 13 and a rectangular locking slot 11 are formed on the side wall of the fluid holding chamber 1. The limiting groove 13 and the rectangular locking slot 11 engage with the rectangular locking blocks. The positions of the rectangular locking block 12 and the limiting block 14 on the sleeve 2 are corresponding. The rectangular locking block 12 is movably engaged in the rectangular locking groove 11, and the limiting block 14 is movably engaged in the limiting groove 13. A locking plate 22 is fixedly installed on the inner side wall of the sleeve 2. A locking component 21 is movably engaged in the locking plate 22. The locking component 21 is fixedly installed on the side wall of the central shaft 3. Two mounting components 15 are fixedly installed on the side wall of the sleeve 2. The mounting components 15 are movably engaged in the groove opened on the side wall of the fluid holding chamber 1.

[0026] By inserting the crushing rib 26 into the sleeve 2, aligning the positions of the engaging piece 21 and engaging buckle 22 on the central shaft 3, and inserting the central shaft 3 into the sleeve 2, the sleeve 2 and the central shaft 3 are engaged. After engagement, the crushing rib 26 is fitted onto the outside of the central shaft 3. The sealing ring 25 is then placed into the fluid holding chamber 1, and the fluid holding chamber 1 is fitted onto the sleeve 2. The sleeve 2 and the fluid holding chamber 1 are fixedly installed by engaging the rectangular locking block 12 and the rectangular locking groove 11, and engaging the limiting block 14 and the limiting groove 13. This device achieves the installation of the equipment by controlling the engagement between the fluid holding chamber 1, the sleeve 2, and the central shaft 3. During the installation process, the use of two bushing components can be eliminated, which has the advantage of reducing material costs and production processes, and also improves the speed and efficiency of assembly.

[0027] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0028] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A damper comprising a fluid holding chamber (1), a sleeve (2), and a central shaft (3), wherein the fluid holding chamber (1) is movably sleeved outside the sleeve (2), and the central shaft (3) is movably installed inside the sleeve (2) and the fluid holding chamber (1), characterized in that: A barrier mechanism to prevent fluid leakage is provided between the fluid holding chamber (1), the sleeve (2), and the central shaft (3). An annular mounting groove (24) is provided on the lower surface of the fluid holding chamber (1). The annular mounting groove (24) is located on the mating sidewalls of the fluid holding chamber (1) and the central shaft (3). A crushing rib (26) is movably installed within the annular mounting groove (24). The lower surface of the crushing rib (26) is movably installed on the upper surface of the central shaft (3). The lower surface of the retaining chamber (1) is provided with an annular belt (27), and the annular belt (27) is in contact with the upper surface of the central shaft (3). An annular mounting groove (24) is also provided on the inner side wall of the sleeve (2), and a crushing rib (26) is also installed at the position where the sleeve (2) and the central shaft (3) are in contact. An annular belt (27) is also installed on the side wall where the sleeve (2) and the central shaft (3) are in contact. The fluid retaining chamber (1) is provided with a locking mechanism for auxiliary assembly. The fluid holding chamber (1) has a insertion groove (23) on its lower surface. The sleeve (2) is movably engaged in the insertion groove (23). A sealing ring (25) is movably installed on the part of the sleeve (2) in the insertion groove (23), and the sealing ring (25) is also movably engaged in the fluid holding chamber (1). The crushing rib (26) can block the fluid by deforming and crushing itself. The annular belt (27) limits the up and down movement of the central shaft (3) to ensure that the pressure on the crushing rib (26) is not too large, thereby preventing the crushing rib (26) from being damaged and improving the service life of the equipment.

2. A damper according to claim 1, characterized in that: The locking mechanism includes a rectangular locking block (12) and a limiting block (14). The rectangular locking block (12) and the limiting block (14) are both fixedly installed on the outer side wall of the sleeve (2). The rectangular locking block (12) and the limiting block (14) are evenly arranged at equal intervals on the side wall of the sleeve (2), and the rectangular locking block (12) and the limiting block (14) are distributed at intervals.

3. A damper according to claim 2, characterized in that: The fluid holding chamber (1) has a limiting groove (13) and a rectangular slot (11) on its side wall. The limiting groove (13) and the rectangular slot (11) correspond to the positions of the rectangular block (12) and the limiting block (14) on the sleeve (2).

4. A damper according to claim 3, characterized in that: The rectangular card block (12) is movably engaged in the rectangular card slot (11), and the limiting block (14) is movably engaged in the limiting slot (13).

5. A damper according to claim 1, characterized in that: A snap-fit ​​plate (22) is fixedly installed on the inner side wall of the sleeve (2), and a snap-fit ​​component (21) is movably snap-fitted inside the snap-fit ​​plate (22). The snap-fit ​​component (21) is fixedly installed on the side wall of the central shaft (3).

6. A damper according to claim 1, characterized in that: Two mounting parts (15) are fixedly installed on the side wall of the sleeve (2), and the mounting parts (15) are movably engaged in the groove opened on the side wall of the fluid holding chamber (1).

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