Shock absorber buffering device, shock absorber and automobile
By designing a multi-layered structure and incorporating exhaust channels into the shock absorber stop cover, the noise problem caused by the inability to expel air during buffer block compression was solved, the strength of the stop cover was enhanced, and the driving experience was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GAC HONDA AUTOMOBILE CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-19
AI Technical Summary
When existing shock absorber buffer blocks are compressed, the rapidly compressed air cannot be effectively expelled, leading to noise problems and affecting the driving experience.
A multi-layered stop cover is designed, comprising a first cover body and a second cover body, with an exhaust groove between them for the discharge of air from the inside of the buffer block, thereby enhancing the overall strength of the stop cover and solving the noise problem.
The exhaust channels effectively expel air from the buffer block, reducing noise, increasing the strength of the stop cover, and improving the driving experience.
Smart Images
Figure CN224260787U_ABST
Abstract
Description
Technical Field
[0001] This utility model is applicable to the field of automotive shock absorbers, and in particular relates to a shock absorber buffer device, a shock absorber, and an automobile. Background Technology
[0002] Due to its construction or assembly, the shock absorber's buffer block has a large number of internal gaps. When the shock absorber is in compression, the remaining height of the buffer block after ultimate compression is only 1 / 3 of its original height. The air accumulated in the gaps will be rapidly compressed. If it cannot be effectively expelled, it will exceed a critical point and the air will be squeezed out from the buffer block and surrounding mating parts, producing a loud "bang bang bang" sound, which seriously affects the driving experience.
[0003] In summary, the problems existing in the relevant technologies urgently need to be solved. Utility Model Content
[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a shock absorber buffer device, a shock absorber, and an automobile.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] In a first aspect, a shock absorber buffer device includes a shock absorber body, a stop cover, a mounting base, and a buffer block. The stop cover is disposed at the top of the shock absorber body. A piston rod of the shock absorber body extends outward through a through hole in the stop cover and is connected to the mounting base. The buffer block is fitted onto the piston rod and disposed on the mounting base. A gap is left between the stop cover and the piston rod. The stop cover includes a first cover body and a second cover body. The first cover body and the second cover body form a multi-layer structure at the end of the shock absorber body. The first cover body has an annular end face on the side away from the second cover body for abutting against the buffer block. An exhaust groove communicating with the gap is provided between the first cover body and the second cover body.
[0007] In conjunction with the first aspect, in some implementations of the first aspect, the second cover includes a radially extending end cap portion and a sleeve portion extending axially from the edge of the end cap portion, the sleeve portion being fitted onto the top end of the shock absorber body, the first cover being disposed on the top of the end cap portion of the second cover, and the exhaust groove being disposed between the first cover and the end cap portion.
[0008] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the first cover has a plurality of radially extending grooves on the side facing the end cover portion, the first cover is welded to the end cover portion of the second cover, and the venting groove is formed through the grooves.
[0009] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the bottom of the mounting base is provided with a slot, and the top of the buffer block is provided with a limiting flange installed in the slot.
[0010] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the top end face of the buffer block is provided with a drainage groove, the side of the buffer block is provided with an overflow groove, and the overflow groove extends from the drainage groove to outside the card slot.
[0011] In combination with the first aspect and the above-mentioned implementation methods, in some implementation methods of the first aspect, the outer wall surface of the buffer block is provided with a plurality of external deformation ring grooves, and the inner wall surface of the buffer block that cooperates with the piston rod is provided with a plurality of internal deformation ring grooves.
[0012] In combination with the first aspect and the above-described implementations, some implementations of the first aspect further include a dust cover, which extends along the length direction, with one end of the dust cover connected to the mounting base, and the other end of the dust cover fitted onto the outside of the shock absorber body, covering the stop cover and buffer block inside.
[0013] In combination with the first aspect and the above-described implementations, in some implementations of the first aspect, the piston rod of the shock absorber body passes through the mounting base and is locked by a nut, and the mounting base is provided with a dust cover on the outside of the nut.
[0014] In a second aspect, a vibration damper includes the vibration damper buffer device described in any implementation of the first aspect.
[0015] Thirdly, an automobile includes the shock absorber described in any implementation of the second aspect.
[0016] One of the above technical solutions has at least one of the following advantages or beneficial effects:
[0017] In this embodiment of the invention, the stop cover forms a multi-layer structure through a first cover body and a second cover body, and an exhaust groove is further provided between the first cover body and the second cover body. When the shock absorber is compressed, the buffer block abuts against the annular end face of the first cover body, and the air accumulated inside the buffer block is rapidly compressed. The compressed gas can flow along the inner cavity of the buffer block to the gap between the stop cover and the piston rod, and then flow out through the exhaust groove between the first cover body and the second cover body. The technical solution of this invention not only effectively enhances the overall strength of the stop cover, but also effectively solves the problem of noise caused by the compression and exhaust of the buffer block through the exhaust groove between the first cover body and the second cover body.
[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0020] Figure 1 This is a schematic diagram of an embodiment of the vibration damper of this utility model;
[0021] Figure 2 This is an exploded view of an embodiment of the vibration damper of this utility model;
[0022] Figure 3 This is a schematic diagram of the structure of the vibration damper after compression, representing one embodiment of the present invention.
[0023] Figure 4 This is an isometric view of the stop cover structure of one embodiment of this utility model;
[0024] Figure 5 This is a front view of the stop cover structure according to an embodiment of this utility model;
[0025] Figure 6 yes Figure 5 Cross-sectional view at point AA;
[0026] Figure 7 This is a schematic diagram of a buffer block structure according to an embodiment of the present invention;
[0027] Figure 8 This is a schematic diagram of the airflow after compression in an embodiment of the shock absorber of this utility model. Detailed Implementation
[0028] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0029] In this utility model, when directions (up, down, left, right, front, and back) are described, it is only for the convenience of describing the technical solution of this utility model, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.
[0030] In this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number; "above," "below," "within," etc. are understood to include the stated number. In the description of this utility model, if "first" or "second" is used, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.
[0031] In this utility model, unless otherwise explicitly defined, terms such as "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model based on the specific content of the technical solution.
[0032] in, Figure 3 The reference direction coordinate system of this utility model embodiment is given below, in conjunction with Figure 3 The embodiments of this utility model will be described in the directions shown.
[0033] See Figures 3-6 This utility model provides a shock absorber buffer device, including a shock absorber body 100, a stop cover 200, a mounting base 300, and a buffer block 400. The stop cover 200 is disposed at the top of the shock absorber body 100 and has a through hole. The piston rod 101 of the shock absorber body 100 extends outward through the through hole of the stop cover 200 and is connected to the mounting base 300. The buffer block 400 can be made of rubber and is used for buffering and limiting between the shock absorber body 100 and the mounting base 300. The buffer block 400 has an axial inner hole 4. 01. The buffer block 400 is fitted onto the piston rod 101 and mounted on the mounting base 300. A gap 201 is left between the stop cover 200 and the piston rod 101. The stop cover 200 includes a first cover body 202 and a second cover body 203. The first cover body 202 and the second cover body 203 form a multi-layer structure at the end of the shock absorber body 100. The first cover body 202 has an annular end face 204 on the side away from the second cover body 203 for abutting against the buffer block 400. An exhaust groove 205 communicating with the gap 201 is provided between the first cover body 202 and the second cover body 203.
[0034] Combination Figure 8In this embodiment of the invention, the stop cover 200 forms a multi-layer structure through the first cover body 202 and the second cover body 203, and an exhaust groove 205 is further provided between the first cover body 202 and the second cover body 203. When the shock absorber is compressed, the buffer block 400 abuts against the annular end face 204 of the first cover body 202, and the air accumulated inside the buffer block 400 is rapidly compressed. The compressed gas can flow along the inner cavity of the buffer block 400 to the gap 201 between the stop cover 200 and the piston rod 101, and then flow out through the exhaust groove 205 between the first cover body 202 and the second cover body 203. The technical solution of this invention not only effectively enhances the overall strength of the stop cover 200, but also effectively solves the problem of noise caused by the compression and exhaust of the buffer block 400 through the exhaust groove 205 between the first cover body 202 and the second cover body 203.
[0035] In some embodiments, see Figures 4-6 , Figure 8 The second cover 203 includes a radially extending end cap 206 and an axially extending sleeve 207 extending from the edge of the end cap 206. The sleeve 207 is fitted onto the top of the shock absorber body 100. The first cover 202 is disposed on the top of the end cap 206 of the second cover 203, and an exhaust groove 205 is disposed between the first cover 202 and the end cap 206. In this embodiment, the sleeve 207 of the second cover 203 achieves assembly connection with the shock absorber body 100. Furthermore, the first cover 202 and the end cap 206 of the second cover 203 form a double-layer structure, which can effectively improve the overall strength of the stop cover 200, and further, the exhaust groove 205 effectively solves the problem of noise caused by the compression exhaust of the buffer block 400.
[0036] Further, see Figures 4-6 The first cover 202 has multiple radially extending grooves on the side facing the end cover portion 206. The first cover 202 is welded to the end cover portion 206 of the second cover 203, and the grooves form an exhaust groove 205. Both the first cover 202 and the second cover 203 can be formed by stamping sheet metal. The first cover 202 can be stamped to form a groove that protrudes upwards. The first cover 202 is welded to the end cover portion 206 of the second cover 203, and the grooves form the exhaust groove 205. This embodiment has a simple structure and facilitates the manufacture of the stop cover 200.
[0037] In some embodiments, see Figure 7 , Figure 8 The mounting base 300 has a slot 301 at its bottom, which has a tapered design. The buffer block 400 has a limiting flange 402 at its top, which is installed in the slot 301. The buffer block 400 is made of rubber and has elastic deformation capability. During assembly, the buffer block 400 is pressed into the slot 301 of the mounting base 300.
[0038] In some embodiments, see Figure 7 The top end face of the buffer block 400 is provided with a drainage groove 403, and the side of the buffer block 400 is provided with an overflow groove 404, which extends from the drainage groove 403 beyond the slot 301. See also Figure 8 When the shock absorber is in compression operation, the flow channel 403 and the overflow channel 404 form a passage connecting the inner cavity of the buffer block 400 with the outside, guiding compressed air as... Figure 8 The arrow direction overflows, further eliminating the generation of actuation airflow noise.
[0039] In some embodiments, see Figure 7 , Figure 8 The outer wall of the buffer block 400 is provided with several external deformation ring grooves 405, and the inner wall of the buffer block 400 that mates with the piston rod 101 is provided with several internal deformation ring grooves 406. The external deformation ring grooves 405 and internal deformation ring grooves 406 can guide the buffer block 400 to deform at the external deformation ring grooves 405 and internal deformation ring grooves 406 after being compressed, thereby achieving a better buffering effect.
[0040] In some embodiments, see Figure 1 , Figure 2 The shock absorber buffer device also includes a dust cover 500, which extends along the length direction. One end of the dust cover 500 is connected to the mounting base 300. The mounting base 300 is provided with an outer slot 301 for mounting the dust cover 500. The other end of the dust cover 500 is sleeved on the outside of the shock absorber body 100 and covers the stop cover 200 and the buffer block 400 inside, so as to play a protective and dustproof role.
[0041] In some embodiments, see Figure 2 , Figure 8 The piston rod 101 of the shock absorber body 100 passes through the mounting base 300 and is locked by the nut 600. The mounting base 300 has a dust cover 700 on the outside of the nut 600. During assembly, first press the stop cover 200 onto the shock absorber body, then press the buffer block 400 firmly into the slot 301 of the upper mounting base 300. The dust cover 500 is then assembled into the outer slot 301 of the mounting base 300, and then the entire assembly is fitted onto the piston rod 101 of the body. Finally, it is tightened with the nut 600, and then the dust cover 700 is snapped on. The entire installation process is convenient and quick.
[0042] An embodiment of this utility model also provides a vibration damper, including the vibration damper buffer device in any of the above embodiments.
[0043] An embodiment of this utility model also provides an automobile, including the shock absorber of any of the above embodiments.
[0044] In the description of this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0045] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.
Claims
1. A shock absorber cushioning device characterized by, The device includes a shock absorber body, a stop cover, a mounting base, and a buffer block. The stop cover is located at the top of the shock absorber body. The piston rod of the shock absorber body extends outward through the through hole of the stop cover and is connected to the mounting base. The buffer block is fitted onto the piston rod and is mounted on the mounting base. A gap is left between the stop cover and the piston rod. The stop cover includes a first cover body and a second cover body. The first cover body and the second cover body form a multi-layer structure at the end of the shock absorber body. The first cover body has an annular end face on the side away from the second cover body for abutting against the buffer block. An exhaust groove communicating with the gap is provided between the first cover body and the second cover body.
2. The shock absorber bumper device of claim 1, wherein The second cover includes a radially extending end cap portion and an axially extending sleeve portion from the edge of the end cap portion, the sleeve portion being fitted onto the top end of the shock absorber body, the first cover being disposed on the top of the end cap portion of the second cover, and the exhaust groove being disposed between the first cover and the end cap portion.
3. The shock absorber bumper device of claim 2, wherein The first cover has a plurality of radially extending grooves on one side facing the end cap portion. The first cover is welded to the end cap portion of the second cover and the vent grooves are formed through the grooves.
4. The shock absorber bumper device of claim 1, wherein The bottom of the mounting base is provided with a slot, and the top of the buffer block is provided with a limiting flange that is installed in the slot.
5. The shock absorber bumper device of claim 4, wherein The top end face of the buffer block is provided with a drainage groove, and the side of the buffer block is provided with an overflow groove, which extends from the drainage groove to the outside of the card slot.
6. The shock absorber bumper device of claim 1, wherein The outer wall surface of the buffer block is provided with several external deformation ring grooves, and the inner wall surface of the buffer block that mates with the piston rod is provided with several internal deformation ring grooves.
7. The shock absorber bumper device of claim 1, wherein It also includes a dust cover that extends along its length, with one end of the dust cover connected to the mounting base and the other end of the dust cover fitted onto the outside of the shock absorber body, and covering the stop cover and buffer block inside.
8. The shock absorber bumper device of claim 1, wherein The piston rod of the shock absorber body passes through the mounting base and is locked by a nut. The mounting base is provided with a dust cover on the outside of the nut.
9. A damper characterized by, The damper buffer device includes any one of claims 1 to 8.
10. An automobile characterized by comprising: Includes the vibration damper as described in claim 9.