Windproof and sandproof oil pressure rear shock absorber

Abstract

The utility model discloses a kind of wind-sand-preventing oil pressure rear shock absorber, it is related to the field of shock absorber, including first protective sleeve, the circumference outside of spring that is sleeved on rear shock absorber, and first protective sleeve and the connecting plate of spring one end are movably connected, for protecting spring, prevent sundries from adhering;Second protective sleeve, the outside of damper that is sleeved on rear shock absorber, and second protective sleeve and first protective sleeve between movably connected, for adjusting and protecting spring. The utility model realizes the all-around closed protection to spring and piston rod by the telescopic cooperation of first protective sleeve and second protective sleeve, effectively prevent wind sand and other sundries from eroding spring and piston rod, improve the service life of shock absorber, simplify dismounting process, reduce the labor intensity of maintenance work, the surface cleaning of first protective sleeve, both ensure the neatness and movement fluency of first protective sleeve surface, and also prolong the maintenance cycle of first protective sleeve.

Description

Technical Field

[0001] This utility model relates to the field of shock absorbers, specifically to a wind and sand-proof hydraulic shock absorber. Background Technology

[0002] The motorcycle hydraulic rear shock absorber is a core component in the vehicle suspension system that provides damping. Its main working principle is based on the piston rod stretching and compressing within a cylinder filled with damping fluid. When the piston moves, the fluid needs to pass through small holes or valves on the piston. This process generates a huge hydraulic damping force, which controls the oscillation when the spring absorbs shock and rebounds, thereby improving the stability of motorcycle handling and driving comfort.

[0003] However, the springs and piston rods of the shock absorbers are exposed to the elements for extended periods, making them susceptible to damage from sand, pebbles, and other debris while the motorcycle is in motion. Over time, this can cause a decrease in the damping force of the springs and piston rods, severely affecting the stability and safety of the vehicle.

[0004] Currently, existing shock absorbers have protective sleeves on the outside to prevent wind and sand. However, when it is necessary to maintain the shock absorber, it is difficult to remove the protective sleeves, and it is also difficult to adjust the springs when needed.

[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 wind and sand resistant hydraulic 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:

[0008] A wind and sand resistant hydraulic rear shock absorber includes: a first protective sleeve, which is fitted around the outer circumference of a spring on the rear shock absorber and is movably connected to a connecting plate at one end of the spring, for protecting the spring and preventing debris from adhering; and a second protective sleeve, which is fitted around the outer side of a damper on the rear shock absorber and is movably connected to the first protective sleeve, for adjusting and protecting the spring.

[0009] Furthermore, to achieve comprehensive protection for the spring and piston rod, the top of the first protective sleeve is provided with several connecting blocks. Each connecting block has an L-shaped limiting groove inside. A first connecting groove is formed on one side of each connecting block, and a first through hole, matching the first connecting groove, is formed on the outer side of the first protective sleeve. The diameters of the first connecting groove and the first through hole are the same. The bottom of the connecting plate has a groove, and a limiting block, matching the limiting groove, is provided on one side of the groove. A second connecting groove is formed on one side of the limiting block. A second through hole, matching the first through hole, is formed on the outer side of the connecting plate. The diameters of the second through hole and the first through hole are the same. A pin is provided between the first and second through holes.

[0010] Furthermore, to achieve a sealed space with the first protective sleeve and to adjust the spring, the bottom of the inner part of the second protective sleeve is provided with a base connected to the spring, and the base is fitted onto the threaded portion of the damper; the top of the base is provided with an isolation sleeve, and a sliding groove is formed between the outer wall of the isolation sleeve and the inner wall of the second protective sleeve. The bottom of the first protective sleeve is movably engaged with the sliding groove. The top of the second protective sleeve is provided with a scraper ring, and the scraper ring abuts against the side of the first protective sleeve.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. Through the telescopic cooperation of the first and second protective sleeves, the spring and piston rod are fully enclosed for protection, effectively preventing the erosion of wind and sand and other debris, and extending the service life of the shock absorber.

[0013] 2. By setting a pin, the first protective sleeve can be quickly disassembled, simplifying the disassembly and assembly process and reducing the labor intensity of maintenance work.

[0014] 3. By setting up a scraping ring, the surface of the first protective cover is continuously scraped and cleaned, which not only ensures the cleanliness and smooth movement of the first protective cover surface, but also extends the maintenance cycle of the first protective cover. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a structural schematic diagram of a wind and sand resistant hydraulic shock absorber according to an embodiment of the present utility model;

[0017] Figure 2 This is one of the cross-sectional views of a wind and sand resistant hydraulic shock absorber according to an embodiment of the present utility model;

[0018] Figure 3 This is a second cross-sectional view of a wind and sand resistant hydraulic shock absorber according to an embodiment of the present utility model;

[0019] Figure 4 yes Figure 3 A magnified view of a section at point A.

[0020] In the picture:

[0021] 1. First protective sleeve; 101. Connecting block; 102. Limiting groove; 103. First connecting groove; 104. First through hole; 2. Spring; 3. Connecting plate; 301. Groove; 302. Limiting block; 303. Second connecting groove; 304. Second through hole; 305. Pin; 4. Second protective sleeve; 401. Base; 402. Isolation sleeve; 403. Sliding groove; 404. Scraper ring; 5. Damper; 6. Piston rod; 7. Top rubber. Detailed Implementation

[0022] 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.

[0023] According to an embodiment of the present invention, a windproof and sandproof hydraulic shock absorber is provided.

[0024] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-4 As shown, the windproof and sandproof hydraulic rear shock absorber according to an embodiment of the present invention includes a first protective sleeve 1, which is sleeved on the outer circumference of the spring 2 on the rear shock absorber, and the first protective sleeve 1 is movably connected to the connecting plate 3 at one end of the spring 2, for protecting the spring 2 and preventing debris from adhering; and a second protective sleeve 4, which is sleeved on the outer side of the damper 5 on the rear shock absorber, and the second protective sleeve 4 is movably connected to the first protective sleeve 1, for adjusting and protecting the spring 2.

[0025] With the help of the above technical solution, the spring and piston rod are sealed and protected by the cooperation of the first protective sleeve 1 and the second protective sleeve 4. The first protective sleeve and the connecting plate can be quickly disassembled by the limiting pin, reducing the workload of the workers. When the first protective sleeve reciprocates in the sliding groove, the surface of the first protective sleeve is scraped and cleaned by the scraping ring, which not only ensures the cleanliness of the surface of the first protective sleeve and the smoothness of the movement, but also extends the maintenance cycle of the first protective sleeve.

[0026] It needs to be explained that, for example Figure 2 As shown, the rear shock absorber consists of a spring 2, a connecting plate 3, a damper 5, a piston rod 6, and a top mount 7. The spring 2 is usually a coil spring, used to support the weight of the motorcycle and absorb impacts from the road. The damper 5 is filled with damping oil, used to control the compression and rebound speed of the spring 2, thereby reducing vibration and improving the comfort and handling of the motorcycle. The piston rod 6 is connected to the piston inside the damper 5, and produces a damping effect by moving in the damping oil. The top mount 7 is the part that connects the shock absorber to the body or chassis, usually made of rubber material, used to absorb high-frequency fine vibrations and achieve a flexible connection. The rear shock absorber mainly relies on the synergistic effect of the spring 2 and the damper 5 to absorb and reduce impacts and vibrations from the road. When the motorcycle is moving, when the wheel encounters an obstacle, the suspension system moves up and down. The spring 2 compresses first, absorbing most of the impact force. After absorbing the impact, the spring 2 will try to release the stored energy and return to its original shape. Without the damper 5 to suppress it, the spring 2 will continue to oscillate back and forth, causing unnecessary bumps in the motorcycle.

[0027] At this time, the piston rod 6 moves within the damper 5 filled with damping oil through the piston, generating damping force. This damping force is achieved by forcing the damping oil through a small hole or valve when the piston moves. The damper 5 slows down the rebound speed of the spring 2, controls the frequency and amplitude of the spring 2's vibration, and allows the motorcycle to smoothly return to normal driving conditions. This is existing technology and will not be elaborated here.

[0028] In one embodiment, for the first protective sleeve 1 and the connecting plate 3, the top of the first protective sleeve 1 is provided with a plurality of connecting blocks 101, the interior of the connecting blocks 101 is provided with limiting grooves 102, and the limiting grooves 102 are L-shaped; a first connecting groove 103 is provided on one side of the connecting blocks 101, and a first through hole 104 is provided on the outer side of the first protective sleeve 1 to cooperate with the first connecting groove 103, and the diameters of the first connecting groove 103 and the first through hole 104 are the same. The bottom end of the connecting plate 3 is provided with a groove 301, a limiting block 302 is provided on one side of the groove 301 to cooperate with the limiting groove 102, a second connecting groove 303 is provided on one side of the limiting block 302; a second through hole 304 is provided on the outer side of the connecting plate 3 to cooperate with the first through hole 104, and the diameters of the second through hole 304 and the first through hole 104 are the same. A pin 305 is provided between the first through hole 104 and the second through hole 304, which enables quick disassembly of the first protective sleeve 1, simplifies the disassembly and assembly process, and reduces the labor intensity of maintenance work.

[0029] The working principle of the first protective sleeve 1 and the connecting plate 3 is as follows: In the initial state, the operator aligns one end of the first protective sleeve 1 with the bottom end of the connecting plate 3, and then gradually moves closer, so that the connecting block 101 enters the groove 301 of the connecting plate 3. When the bottom end of the connecting plate 3 touches the first protective sleeve 1, the operator rotates the first protective sleeve 1, so that the first protective sleeve 1 rotates in the groove 301, thereby causing the limiting block 302 to slide into the limiting groove 102. At this time, the second connecting groove 303 on the limiting block 302 is aligned with the first connecting groove 103. Then the operator inserts the pin 305 into the first through hole 104, thereby fixing the limiting block 302 in the limiting groove 102.

[0030] In one embodiment, the second protective sleeve 4 has a base 401 connected to the spring 2 at its inner bottom end, and the base 401 is fitted onto the threaded portion of the damper 5. An isolation sleeve 402 is provided at the top of the base 401, and a sliding groove 403 is formed between the outer wall of the isolation sleeve 402 and the inner wall of the second protective sleeve 4. The bottom end of the first protective sleeve 1 is movably engaged with the sliding groove 403. A scraping ring 404 is provided at the top of the second protective sleeve 4, and the scraping ring 404 abuts against the side of the first protective sleeve 1, enabling continuous scraping of the surface of the first protective sleeve, preventing abrasive impurities from entering the interior, ensuring smooth long-term operation, and effectively extending the maintenance cycle of the entire device.

[0031] The working principle of the second protective sleeve 4 is as follows: First, the operator rotates the second protective sleeve 4 clockwise, which in turn drives the base 401 to rotate, causing the base 401 to move upward under the action of the thread on the outside of the damper 5, thereby tightening the spring 2. When the second protective sleeve 4 is rotated counterclockwise, it drives the base 401 to move downward, thereby loosening and adjusting the spring 2.

[0032] 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.

[0033] In practical application, firstly, the operator places the first protective sleeve 1 at the bottom of the connecting plate 3, then rotates the first protective sleeve 1 to connect the first limiting block 302 with the limiting groove 102. Next, the pin 305 is inserted into the first through hole 104 and the second through hole 304 to complete the fixed installation of the first protective sleeve 1 (the working principle of the first protective sleeve 1 is as described above). Then, the operator installs the second protective sleeve 4 on the outside of the damper 5, while inserting the first protective sleeve 1 into the sliding groove 403 to protect the spring 2 and piston rod 6 in the rear shock absorber. When the motorcycle moves, the spring 2 drives the connecting plate 3 to move, which in turn drives the first protective sleeve 1 to move in the sliding groove 403. At the same time, when the motorcycle is moving and encounters an area with many impurities, the first protective sleeve 1 and the second protective sleeve 4 block the invasion of impurities. Under the action of the scraper ring 404, the outer side of the first protective sleeve 1 can be automatically cleaned of the attached substances. When the spring 2 needs to be adjusted, the operator can simply rotate the second protective sleeve 4 (the working principle of the second protective sleeve 4 is as described above).

[0034] In summary, by means of the above-mentioned technical solution of this utility model, the spring 2 and piston rod 6 are sealed and protected by the cooperation of the first protective sleeve 1 and the second protective sleeve 4. The first protective sleeve 1 and the connecting plate 3 can be quickly disassembled by the limiting pin 305, reducing the workload of the workers. When the first protective sleeve 1 reciprocates in the sliding groove 403, the scraping ring 404 scrapes and cleans the surface of the first protective sleeve 1, ensuring the cleanliness of the first protective sleeve 1 and extending the maintenance cycle of the first protective sleeve 1.

[0035] 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.

[0036] 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 wind and sand resistant hydraulic shock absorber, characterized in that, include: The first protective sleeve (1) is fitted on the outer circumference of the spring (2) on the rear shock absorber, and the first protective sleeve (1) is movably connected to the connecting plate (3) at one end of the spring (2) to protect the spring (2) and prevent debris from adhering. The second protective sleeve (4) is fitted on the outside of the damper (5) on the rear shock absorber, and the second protective sleeve (4) is movably connected to the first protective sleeve (1) for adjusting and protecting the spring (2).

2. The windproof and sand-proof hydraulic shock absorber according to claim 1, characterized in that, The top of the first protective sleeve (1) is provided with a plurality of connecting blocks (101), and the connecting blocks (101) have a limiting groove (102) inside, and the limiting groove (102) is an L-shaped structure; The connecting block (101) has a first connecting groove (103) on one side, and the first protective sleeve (1) has a first through hole (104) on the outside that matches the first connecting groove (103), and the diameters of the first connecting groove (103) and the first through hole (104) are the same.

3. The windproof and sand-proof hydraulic shock absorber according to claim 2, characterized in that, The bottom end of the connecting plate (3) is provided with a groove (301), and a limiting block (302) that cooperates with the limiting groove (102) is provided on one side of the groove (301). A second connecting groove (303) is provided on one side of the limiting block (302). The outer side of the connecting plate (3) is provided with a second through hole (304) that cooperates with the first through hole (104), and the second through hole (304) has the same diameter as the first through hole (104).

4. The windproof and sand-proof hydraulic shock absorber according to claim 3, characterized in that, A pin (305) is provided between the first through hole (104) and the second through hole (304).

5. The wind and sand resistant hydraulic shock absorber according to claim 1, characterized in that, The bottom of the inner side of the second protective sleeve (4) is provided with a base (401) connected to the spring (2), and the base (401) is sleeved on the threaded part of the damper (5); An isolation sleeve (402) is provided at the top of the base (401), and a sliding groove (403) is formed between the outer wall of the isolation sleeve (402) and the inner wall of the second protective sleeve (4).

6. A windproof and sand-proof hydraulic shock absorber according to claim 5, characterized in that, The bottom end of the first protective sleeve (1) is in movable cooperation with the sliding groove (403).

7. The wind and sand resistant hydraulic shock absorber according to claim 1, characterized in that, The top of the second protective sleeve (4) is provided with a scraper ring (404), and the scraper ring (404) abuts against the side of the first protective sleeve (1).

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