Split type front shock absorber

CN224770751UActive Publication Date: 2026-09-18RENXIAN FUMIDA MACHINERY PARTS CO LTD
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Patent Information

Application Number
CN202522454319.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-19
Publication Date
2026-09-18
Estimated Expiration
2035-11-19

AI Technical Summary

Technical Problem

[0004]然而,在现有的一种分体式前减震器中,对防尘组件多为简单套设结构,缺乏有效的定位与锁紧方式,在振动的情况下容易产生松动,同时在使用过程中,外界泥沙、水汽容易进入减震器内部,导致弹簧等部件容易受到污染,进而影响减震器的工作稳定性

Benefits of technology

1、本实用新型结构合理,操作简单,保证减震器的防护不会因行驶震动或弹跳工况而发生松脱或滑移,延长减震器内部零件的使用寿命。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of shock absorber discloses a split type front shock absorber, including shock absorber body, collar is set up in the both ends of shock absorber body, protective flexible tube is sleeved in the outside of shock absorber body, and protective flexible tube is connected with the cooperation of collar, fixed assembly is set up in the outside of collar, the utility model discloses under the action of sealing ring and sealed cavity, forms multistage sealed passage, effectively blocks the outside silt, water vapor and enters the inside of shock absorber body, prolongs the service life of shock absorber body inside part, through the clamping cooperation of first semicircular plate and second semicircular plate, the radial fixed of protective flexible tube is carried out, avoids the failure phenomenon such as loosening, displacement of protective flexible tube under the action of vehicle vibration or impact, ensures the stable work of protective flexible tube, realizes the quick locking and release of protective flexible tube under the action of lug and recess and bolt, improves maintenance convenience.
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Description

Technical Field

[0001] This utility model relates to the field of shock absorber technology, specifically to a split-type front shock absorber. Background Technology

[0002] Shock absorbers are devices used to suppress the vibration of objects and reduce impact energy. They are mostly used in the field of vehicles, such as cars, electric vehicles, and motorcycles. Shock absorbers are divided into front shock absorbers and rear shock absorbers. For motorcycles, the front shock absorber is used to absorb the impact force of the front wheel, maintain the grip of the front wheel, and ensure the stability of the front of the motorcycle when braking.

[0003] For example, the utility model patent with application number 202420692059.0 discloses a split-type front shock absorber, including a support base, with positioning screws inserted and connected to the four corners of the upper end of the support base, a shock-absorbing device inserted and fixedly connected to the upper end of the support base, an oil-proof device provided at the upper end of the shock-absorbing device, a shock-absorbing rod device provided at the upper end of the oil-proof device, a shock-absorbing rod body provided at the upper end of the shock-absorbing rod device, and a dustproof component sleeved on the outer surface of the shock-absorbing device.

[0004] However, in existing split-type front shock absorbers, the dustproof components are mostly simple sleeve structures, lacking effective positioning and locking methods. They are prone to loosening under vibration. At the same time, during use, external mud, sand and moisture can easily enter the shock absorber, causing components such as springs to be easily contaminated, which in turn affects the working stability of the shock absorber.

[0005] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0006] In view of the problems in the related technologies, this utility model proposes a split-type front shock absorber to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] Therefore, the specific technical solution adopted by this utility model is as follows: A split-type front shock absorber includes a shock absorber body; collars disposed at both ends of the shock absorber body; a protective sleeve sleeved on the outside of the shock absorber body, and the protective sleeve is connected to the collar; and a fixing component disposed on the outside of the collar.

[0008] Furthermore, to prevent external mud, sand, and moisture from entering the shock absorber body, a chamber is provided at the bottom of the collar. Several sealing rings are provided on one side of the inner wall of the chamber, and the adjacent sides of the sealing rings form a sealing cavity. A cutting angle is provided on one side of the sealing ring. Several fixing grooves are provided on the outer side of the collar. Connecting plates are symmetrically arranged on the outer side of the collar, and rotating shafts are symmetrically arranged between the connecting plates. Annular grooves are provided on the outer side of the collar, above and below the fixing grooves.

[0009] Furthermore, in order to prevent the protective sleeve from loosening under vibration or jumping conditions during vehicle operation, the fixing component includes a connecting block sleeved on the outside of the rotating shaft. One set of connecting blocks has a first semicircular plate on one side, and the other set of connecting blocks has a second semicircular plate on one side. The first and second semicircular plates have fixing blocks that cooperate with fixing grooves on the side near the collar. Several fixing strips are provided on one side of the fixing blocks. The first and second semicircular plates have semi-circular bars on one side that cooperate with the annular groove.

[0010] Furthermore, to secure the first and second semicircular plates, a protrusion is provided at one end of the first semicircular plate, and a groove that mates with the protrusion is provided at one end of the second semicircular plate. Both the protrusion and the groove have threaded holes on their surfaces; and a bolt is installed between the protrusion and the groove. The diameter of the fixing block is smaller than the diameter of the fixing groove. The inner arc-shaped surfaces of the first and second semicircular plates fit against the outer arc-shaped surface of the collar.

[0011] The beneficial effects of this utility model are as follows: 1. This utility model has a reasonable structure and is easy to operate, ensuring that the shock absorber will not loosen or slip due to driving vibration or bouncing conditions, thus extending the service life of the internal parts of the shock absorber.

[0012] 2. Through the action of the sealing ring and sealing cavity, a multi-level sealing channel is formed, which effectively prevents external mud, sand and water vapor from entering the inside of the shock absorber body, and extends the service life of the internal parts of the shock absorber body.

[0013] 3. The protective soft cylinder is radially fixed by the clamping action of the first and second semicircular plates to prevent it from loosening or shifting under vehicle vibration or impact, thus ensuring stable operation of the protective soft cylinder. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural schematic diagram of a split-type front shock absorber according to an embodiment of the present utility model; Figure 2 This is a cross-sectional view of a split-type front shock absorber according to an embodiment of the present utility model; Figure 3 yes Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a three-dimensional assembly diagram of a split-type front shock absorber according to an embodiment of the present utility model; Figure 5 This is a partial cross-sectional view of the collar in a split-type front shock absorber according to an embodiment of the present utility model.

[0016] In the picture: 1. Shock absorber body; 2. Collar; 201. Chamber; 202. Sealing ring; 203. Sealing cavity; 204. Cutting angle; 205. Fixing groove; 206. Connecting plate; 207. Rotating shaft; 208. Annular groove; 3. Protective soft cylinder; 4. Fixing assembly; 401. Connecting block; 402. First semicircular plate; 403. Second semicircular plate; 404. Fixing block; 405. Semi-ring strip; 406. Protrusion; 407. Groove; 408. Threaded hole; 409. Bolt; 410. Fixing strip. Detailed Implementation

[0017] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0018] According to an embodiment of the present invention, a split-type front shock absorber is provided.

[0019] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-5 As shown, the split-type front shock absorber according to an embodiment of the present utility model includes a shock absorber body 1; a collar 2, which is disposed at both ends of the shock absorber body 1; a protective soft cylinder 3, which is sleeved on the outside of the shock absorber body 1 and is connected to the collar 2; and a fixing component 4, which is disposed on the outside of the collar 2.

[0020] With the help of the above technical solution, the combination of the chamber in the collar 2 and the circumferential clamping structure of the fixing component 4 fixes the protective soft cylinder 3 in a fixed position, preventing it from loosening or slipping due to driving vibration or bouncing conditions. The sealing ring and sealing cavity form a multi-level sealing channel, effectively preventing external mud, sand and water vapor from entering the inside of the shock absorber body 1, extending the service life of the internal parts of the shock absorber body 1. The protective soft cylinder 3 can be quickly locked and released by the action of the protrusions, grooves and bolts, improving the convenience of maintenance.

[0021] It should be noted that the shock absorber body 1 generally consists of conventional components such as a spring, damper, piston rod, and top mount. The spring bears the load of the vehicle body and rider, and compresses to absorb the main impact energy when encountering road impacts. The damper is filled with damping oil, and controls the compression and rebound of the spring by limiting the flow speed of the piston in the oil chamber, giving the suspension system appropriate damping characteristics, thereby reducing vehicle vibration and improving ride smoothness and handling stability. During motorcycle riding, when the front wheel passes over a bump or depression, the shock absorber body 1 moves vertically accordingly. The spring first compresses to absorb the impact force, and then slowly rebounds under the action of the damper, allowing the vehicle to transition smoothly. This is existing technology and will not be elaborated further here.

[0022] In addition, the protective sleeve 3 can be made of thermoplastic elastomer, rubber material or other polymer material with flexibility and resilience.

[0023] In one embodiment, for the collar 2, a chamber 201 is formed at the bottom end of the collar 2. A plurality of sealing rings 202 are provided on one side of the inner wall of the chamber 201. The adjacent sides of the sealing rings 202 form a sealing cavity 203. A cutting angle 204 is formed on one side of the sealing rings 202. A plurality of fixing grooves 205 are provided on the outer side of the collar 2. Connecting plates 206 are symmetrically arranged on the outer side of the collar 2. Rotating shafts 207 are symmetrically arranged between the connecting plates 206. Annular grooves 208 are formed on the outer side of the collar 2, above and below the fixing grooves 205, to effectively prevent external mud, sand and water vapor from entering the interior of the shock absorber body 1, thereby extending the service life of the internal parts of the shock absorber body 1.

[0024] In one embodiment, the fixing component 4 includes a connecting block 401 sleeved on the outside of the rotating shaft 207. One set of connecting blocks 401 has a first semicircular plate 402 on one side, and another set of connecting blocks 401 has a second semicircular plate 403 on one side. A fixing block 404, which mates with the fixing groove 205, is provided on the side of the first semicircular plate 402 and the second semicircular plate 403 near the collar 2. A plurality of fixing strips 410 are provided on one side of the fixing block 404. A semi-annular strip 405, which mates with the annular groove 208, is provided on one side of the first semicircular plate 402 and the second semicircular plate 403. A protrusion 406 is provided at one end of the first semicircular plate 402, and a groove 407, which mates with the protrusion 406, is provided at one end of the second semicircular plate 403. Both the protrusion 406 and the groove 407 have threaded holes 408 on their surfaces. A bolt 409 is provided between the protrusion 406 and the groove 407. The diameter of the fixing block 404 is smaller than the diameter of the fixing groove 205. The inner arc surfaces of the first semicircular plate 402 and the second semicircular plate 403 fit against the outer arc surface of the collar 2, thereby fixing and limiting the protective soft cylinder 3 and preventing it from loosening or slipping due to driving vibration or bouncing conditions.

[0025] The working principle of the collar 2 and the fixing component 4 is as follows: First, when the protective soft cylinder 3 enters the chamber 201, the operator performs a closing operation on the first semicircular plate 402 and the second semicircular plate 403. During the closing process, the fixing blocks 404 on the inner side of the first semicircular plate 402 and the second semicircular plate 403 are sequentially embedded into the fixing grooves 205 on the outer periphery of the collar 2. Under the action of the fixing strip 410, the outer side of the protective soft cylinder 3 is clamped, forming a radial limit. At the same time, when the semi-ring strips 405 on the first semicircular plate 402 and the second semicircular plate 403 are respectively embedded into the annular grooves 208 at the corresponding positions of the collar 2, the fixing component will not be displaced in the axial direction. When the first semicircular plate 402 and the second semicircular plate 403 are fully closed, the protrusion 406 at their ends is inserted into the groove 407 and the threaded hole 408 is aligned. Then, the worker inserts the bolt 409 to make the first semicircular plate 402 and the second semicircular plate 403 form an integral structure, thereby achieving a ring-locking of the protective soft cylinder 3.

[0026] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0027] In practical applications, the end of the protective soft cylinder 3 is first aligned with the cavity 201 at the bottom of the collar 2, and then pushed upwards along the axial direction of the shock absorber body 1. Since the diameter of the installation opening formed between the first semicircular plate 402 and the second semicircular plate 403 is larger than the outer diameter of the protective soft cylinder 3, the protective soft cylinder 3 undergoes elastic deformation during insertion, allowing its outer wall to pass smoothly through the opening and enter the cavity 201. As the protective soft cylinder 3 is gradually pushed into the cavity 201, the outer wall of the protective soft cylinder 3 contacts and partially compresses with several sealing rings 202 provided on the inner wall of the cavity 201. Under the pressure of the outer wall of the soft cylinder, the sealing rings 202 elastically yield, thereby forming a sealing structure between the protective soft cylinder 3 and the sealing rings 202 at the sealing cavity 203. At this time, after leaving the installation inlet, the protective soft cylinder 3 recovers part of its radial rebound, and the inner wall of the protective soft cylinder 3 fits more tightly with one side of the cavity 201, improving sealing stability. Subsequently, the first semicircular plate 402 and the second semicircular plate 403 of the fixing assembly 4 are closed around the rotation axis 207. When the first semicircular plate 402 and the second semicircular plate 403 are closed, the fixing blocks 404 on the inner sides of the two semicircular plates are sequentially embedded into the fixing grooves 205 on the outer wall of the collar 2, and the semi-ring strip 405 is embedded into the annular groove 208. Finally, the protrusion 406 and the groove 407 are locked together by the bolts 409, forming a circumferential clamping force on the outer circumference of the collar 2, thereby further pressing the protective soft cylinder 3 in the chamber 201 to maintain a stable sealing and positioning state.

[0028] When the protective sleeve 3 needs to be replaced, the operator loosens the bolt 409, allowing the first semicircular plate 402 and the second semicircular plate 403 to flip around the rotation axis 207 to release the external clamping force, remove the protective sleeve 3, and repeat the above installation operation.

[0029] In summary, by utilizing the above-mentioned technical solution of this utility model, the combination of the circumferential clamping structure of the collar 2 chamber 201 and the fixing component 4 ensures that the protective soft cylinder 3 is fixed and limited, preventing it from loosening or slipping due to driving vibration or bouncing conditions. The sealing ring 202 and the sealing cavity 203 form a multi-level sealing channel, effectively preventing external mud, sand, and water vapor from entering the shock absorber body 1, thus extending the service life of the internal parts of the shock absorber body 1. The rapid locking and releasing of the protective soft cylinder 3 is achieved through the action of the protrusion 406, the groove 407, and the bolt 409, improving maintenance convenience.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 split front shock absorber characterized by, include: Shock absorber body (1); The collar (2) is disposed at both ends of the shock absorber body (1); The protective soft sleeve (3) is sleeved on the outside of the shock absorber body (1), and the protective soft sleeve (3) is connected to the collar (2). The fixing component (4) is disposed on the outside of the collar (2).

2. The split front shock absorber of claim 1, wherein, The bottom end of the collar (2) is provided with a cavity (201), and a plurality of sealing rings (202) are provided on one side of the inner wall of the cavity (201). The adjacent side of the sealing rings (202) forms a sealing cavity (203), and a cutting angle (204) is provided on one side of the sealing rings (202). The outer side of the collar (2) is provided with several fixing grooves (205).

3. The split front shock absorber of claim 2, wherein, The outer side of the collar (2) is symmetrically provided with connecting plates (206), and the connecting plates (206) are symmetrically provided with rotating shafts (207). An annular groove (208) is provided on the outer side of the collar (2) and above and below the fixing groove (205).

4. The split front shock absorber of claim 3, wherein, The fixing component (4) includes a connecting block (401) sleeved on the outside of the rotating shaft (207), wherein a first semicircular plate (402) is provided on one side of one set of the connecting blocks (401), and a second semicircular plate (403) is provided on one side of the other set of the connecting blocks (401). The first semicircular plate (402) and the second semicircular plate (403) are provided with a fixing block (404) that cooperates with the fixing groove (205) on the side near the collar (2), and a plurality of fixing strips (410) are provided on one side of the fixing block (404). The first semicircular plate (402) and the second semicircular plate (403) are provided with a semi-ring bar (405) that cooperates with the annular groove (208) on one side.

5. The split front shock absorber of claim 4, wherein, One end of the first semicircular plate (402) is provided with a protrusion (406), and one end of the second semicircular plate (403) is provided with a groove (407) that cooperates with the protrusion (406). The surfaces of the protrusion (406) and the groove (407) are both provided with threaded holes (408). Furthermore, a bolt (409) is provided between the protrusion (406) and the groove (407).

6. The split front shock absorber of claim 4 wherein, The diameter of the fixing block (404) is smaller than the diameter of the fixing groove (205).

7. The split front shock absorber of claim 4 wherein, The inner arc surfaces of the first semicircular plate (402) and the second semicircular plate (403) are in contact with the outer arc surface of the collar (2).

Citation Information

Patent Citations

  • Split type front shock absorber

    CN221974170U