Adjustable automobile shock absorber

Abstract

The invention discloses an adjustable automobile shock absorber, and relates to the technical field of automobile shock absorbers. The adjustable automobile shock absorber comprises an outer cylinder and a shock absorption mechanism, a damper is installed in the outer cylinder, a dustproof mechanism is installed at the top of the outer cylinder, an adjusting assembly is installed at the top end of a piston rod of the damper, the shock absorption mechanism comprises a bottom connecting disc, the bottom connecting disc is fixedly installed at the top of the surface of the outer cylinder, and the outer cylinder penetrates through the center of the bottom connecting disc. A buffer spring is installed at the top of the bottom connecting disc, a top connecting disc is installed at the top end of the buffer spring, limiting rings are fixedly connected to the edge of the bottom of the top connecting disc and the edge of the top of the bottom connecting disc, and a reinforcing piece is fixedly connected between the bottom of the bottom connecting disc and the outer circle face of the outer barrel; the top of the top connecting disc is fixedly connected with a connecting circular truncated cone, the protection purpose is achieved, elastic protection can be achieved, repeated excessive compression is avoided, damage is not prone to being caused, the damping effect is good, and safety and reliability are achieved.

Description

Technical Field

[0001] This invention relates to the field of automotive shock absorber technology, specifically an adjustable automotive shock absorber. Background Technology

[0002] To improve driving comfort, most car suspension systems are equipped with shock absorbers. Shock absorbers cushion the pressure generated by bumps, making the ride smoother. When driving on bumpy roads, the elastic components absorb the energy of vibrations and impacts. As car use increases, the demand for passenger comfort also rises. Shock absorbers are a type of vibration damping device in cars. To quickly attenuate vibrations between the chassis and body, thereby improving the smoothness and comfort of the ride, car suspension systems are generally equipped with shock absorbers. Shock absorbers cushion the pressure generated by bumps, making the ride smoother.

[0003] Currently, when traditional car shock absorbers encounter continuous potholes and special road surfaces, the elastic components on the shock absorbers are subjected to multiple compressions, making the elastic components less stable overall, which can easily cause damage and affect normal shock absorption. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention is implemented through the following technical solution:

[0005] An adjustable automotive shock absorber includes:

[0006] The outer cylinder, and the connecting lugs fixedly connected to the bottom of the outer cylinder surface, the interior of the outer cylinder is filled with hydraulic oil and nitrogen, a damper is installed inside the outer cylinder, the piston rod of the damper extends to the outside of the outer cylinder, a dustproof mechanism is installed on the top of the outer cylinder, and an adjustment component is installed at the top of the piston rod of the damper.

[0007] The shock absorption mechanism includes a bottom connecting plate, which is fixedly installed on the top of the outer cylinder surface. The outer cylinder passes through the center of the bottom connecting plate. A buffer spring is installed on the top of the bottom connecting plate, and a top connecting plate is installed on the top of the buffer spring. Limiting rings are fixedly connected to the bottom edge and the top edge of the bottom connecting plate. A reinforcing plate is fixedly connected between the bottom of the bottom connecting plate and the outer circular surface of the outer cylinder to support the bottom connecting plate and prevent deformation. A connecting frustum is fixedly connected to the top of the top connecting plate. When the car travels on a bumpy road, the top of the damper piston rod will drive the top connecting plate to move downward. The buffer spring is installed between the bottom and top connecting plates. Without support, and through the pressing of the top connecting plate, the buffer spring is compressed and elastically deformed, thus buffering and reducing the impact of road bumps.

[0008] Preferably, there are two connecting ears, and the two connecting ears are symmetrically installed on the side of the bottom of the outer cylinder along the central axis of the outer cylinder. The piston rod of the damper is sealed to the top of the outer cylinder, which makes it less likely for hydraulic oil to leak.

[0009] When the buffer spring is compressed, both ends of the buffer spring are compressed into the inside of the limiting ring, which can limit the entire buffer spring. The entire buffer spring is compressed smoothly, making it less prone to bending and tilting, and facilitating buffering and shock absorption.

[0010] Preferably, the top and bottom ends of the buffer spring are embedded inside the limiting ring, and the piston rod of the damper passes through the center of the buffer spring, the center of the top connecting plate, and the center of the connecting frustum.

[0011] By compressing the buffer spring, vibration can be reduced. As the piston rod of the damper moves downward, it can squeeze the hydraulic oil inside the damper, further buffering the vibration. The resistance of the hydraulic oil on the piston rod of the damper can slow down the rebound speed of the buffer spring. Through the combination of the buffer spring and the damper, the vehicle can be buffered and its vibration reduced, making it less prone to shaking.

[0012] Preferably, the top connecting plate is installed directly above the bottom connecting plate, and the connecting frustum is installed directly above the top connecting plate.

[0013] Preferably, the dustproof mechanism includes a first ring and a second ring. The first ring is fixedly installed to the top of the outer cylinder by screws, and the second ring is fixedly installed to the middle of the bottom of the top connecting plate by screws. A first hollow conical block is fixedly connected to the center of the first ring, and a second hollow conical block is fixedly connected to the center of the second ring. An elastic shrink shield is fixedly connected between the outer conical surface of the first hollow conical block and the outer conical surface of the second hollow conical block. By having the piston rod at the top of the damper pass through the center of the elastic shrink shield, the piston rod at the top of the damper can be shielded and protected, so that external dust is not easily attached to the surface of the piston rod at the top of the damper. The piston rod moves smoothly and is not prone to jamming. It also reduces the amount of dust entering the oil reservoir of the damper, ensuring the cleanliness of the hydraulic oil.

[0014] Preferably, the piston rod of the damper passes sequentially through the center of the first ring, the center of the first hollow conical block, the center of the elastic contraction cover, the center of the second hollow conical block, and the center of the second ring, with the first and second hollow conical blocks symmetrically installed along the elastic contraction cover.

[0015] Preferably, the inner diameter of the first hollow conical block gradually decreases from bottom to top, the inner diameter of the second hollow conical block gradually decreases from top to bottom, the surface of the elastic shrink cover is a curved surface, and the materials of the elastic shrink cover, the second hollow conical block, and the second ring are all rubber.

[0016] Preferably, the adjusting assembly includes a locking nut and a rotating pressing component. The locking nut is threadedly installed on the top of the damper piston rod near the connecting frustum via an internal thread. An inverted conical hopper is fixedly connected to the top of the locking nut. The rotating pressing component is threadedly installed on the top of the damper piston rod near the inverted conical hopper via an internal thread. A fan-shaped spring is fixedly connected to the side of the bottom of the rotating pressing component. The fan-shaped spring is embedded inside the inverted conical hopper. By turning the locking nut, it connects to the piston rod at the top of the damper. The top thread of the piston rod at the top of the damper is relatively long, allowing the locking nut to be turned clockwise and counterclockwise, thereby different pressing forces on the buffer spring and adjusting the degree of compression of the buffer spring.

[0017] Preferably, the top end of the damper piston rod passes through the center of the locking nut, the center of the inverted conical bucket, and the center of the rotating pressing member, and the inner diameter of the inverted conical bucket gradually decreases from top to bottom.

[0018] The locking nut is used for fixing, and the rotating pressing part is threaded onto the piston rod at the top of the damper, so that the bottom end of the fan-shaped spring contacts the conical surface inside the inverted conical bucket, thereby pressing the fan-shaped spring. Through the elastic deformation of the fan-shaped spring, combined with the action and reaction forces, the inverted conical bucket is always subjected to downward elastic pressure, reducing the impact of bumps and making it less likely for the locking nut to loosen.

[0019] Preferably, the rotating pressing member is installed directly above the locking nut, and there are six fan-shaped springs, which are distributed on the side of the bottom of the rotating pressing member, with the bottom end of the fan-shaped springs fitting against the conical surface of the inner side of the inverted conical bucket.

[0020] This invention provides an adjustable automotive shock absorber. It has the following advantages:

[0021] 1. This adjustable car shock absorber, when the car is driving on a bumpy road, the top of the damper piston rod will drive the top connecting plate to move downward. The buffer spring is installed between the bottom connecting plate and the top connecting plate. Without support, the top connecting plate presses down, causing the buffer spring to be compressed and deformed elastically, thus buffering and absorbing shock and reducing the impact of road bumps.

[0022] Second, when the buffer spring is compressed, both ends of the buffer spring are compressed into the inside of the limiting ring, which can limit the entire buffer spring. The entire buffer spring is compressed smoothly, making it less prone to bending and tilting, and facilitating buffering and shock absorption.

[0023] Third, this adjustable car shock absorber reduces vibration by compressing the buffer spring. As the piston rod of the damper moves downward, it squeezes the hydraulic oil inside the damper, further buffering the vibration. The resistance of the hydraulic oil on the piston rod of the damper slows down the rebound speed of the buffer spring. Through the combination of the buffer spring and the damper, the vehicle can be buffered and its vibration reduced, making it less prone to shaking.

[0024] Fourth, this adjustable automotive shock absorber utilizes the piston rod at the top of the damper, which passes through the center of the elastic contraction cover to shield and protect the piston rod at the top of the damper. This prevents external dust from easily adhering to the surface of the piston rod at the top of the damper, ensuring smooth extension and retraction of the piston rod without jamming. It also reduces the amount of dust entering the oil reservoir of the damper, ensuring the cleanliness of the hydraulic oil.

[0025] 5. When encountering a bumpy road, the adjustable car shock absorber increases the pressure on the buffer spring. By using the contact between the top of the first hollow cone block and the bottom of the second hollow cone block, the buffer spring can be protected, making it less susceptible to excessive compression and extending its service life.

[0026] VI. This adjustable car shock absorber is connected to the piston rod at the top of the damper by tightening the locking nut. The top thread of the piston rod at the top of the damper is relatively long, so the locking nut can be tightened clockwise and counterclockwise, thereby causing different pressure on the buffer spring and thus adjusting the pressure of the buffer spring.

[0027] 7. This adjustable car shock absorber is fixed by tightening the locking nut and threading the rotating pressing part to the piston rod at the top of the damper, so that the bottom end of the fan-shaped spring contacts the conical surface inside the inverted conical bucket, thereby pressing the fan-shaped spring. Through the elastic deformation of the fan-shaped spring, combined with the action and reaction forces, the inverted conical bucket is always subjected to downward elastic pressure, reducing the impact of bumps and preventing the locking nut from loosening. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the adjustable automotive shock absorber of the present invention;

[0029] Figure 2 This is a schematic diagram of the adjustable automotive shock absorber of the present invention from a bottom view.

[0030] Figure 3 This is a schematic diagram of the connection structure between the shock absorption mechanism and the outer cylinder of the present invention;

[0031] Figure 4 This is a schematic diagram of the connection structure between the dustproof mechanism of the present invention and the bottom connecting plate and the top connecting plate;

[0032] Figure 5 This is a schematic diagram showing the disassembled structure between the dustproof mechanism and the bottom connecting plate and the top connecting plate of the present invention;

[0033] Figure 6 This is a schematic diagram of the internal structure of the second ring, the second hollow conical block, and the elastic contraction cover of the present invention.

[0034] Figure 7 This is a schematic diagram of the connection structure between the adjusting component and the piston rod of the damper in this invention;

[0035] Figure 8 This is a schematic diagram of the disassembled structure of the adjustment component of the present invention.

[0036] In the diagram: 1. Outer cylinder; 2. Connecting lug; 3. Damper; 4. Shock absorption mechanism; 5. Dustproof mechanism; 6. Adjustment assembly; 41. Bottom connecting plate; 42. Buffer spring; 43. Top connecting plate; 44. Limiting ring; 45. Reinforcing plate; 46. Connecting frustum; 51. First ring; 52. Second ring; 53. First hollow conical block; 54. Second hollow conical block; 55. Elastic shrink cover; 61. Locking nut; 62. Rotating pressing part; 63. Inverted conical bucket; 64. Fan-shaped spring. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] For the first embodiment, please refer to... Figure 1-3 The present invention provides a technical solution:

[0039] An adjustable automotive shock absorber includes:

[0040] The outer cylinder 1, and the connecting lug 2 fixedly connected to the side of the bottom surface of the outer cylinder 1, the interior of the outer cylinder 1 is filled with hydraulic oil and nitrogen, the interior of the outer cylinder 1 is equipped with a damper 3, and the piston rod of the damper 3 extends to the outside of the outer cylinder 1.

[0041] There are two connecting ears 2, and the two connecting ears 2 are symmetrically installed on the side of the bottom of the outer cylinder 1 along the central axis of the outer cylinder 1. The piston rod of the damper 3 is sealed to the top of the outer cylinder 1, so that hydraulic oil leakage is not likely to occur.

[0042] The shock absorption mechanism 4 includes a bottom connecting plate 41, which is fixedly installed on the top of the outer cylinder 1. The outer cylinder 1 passes through the center of the bottom connecting plate 41. A buffer spring 42 is installed on the top of the bottom connecting plate 41, and a top connecting plate 43 is installed on the top of the buffer spring 42. Limiting rings 44 are fixedly connected to the bottom edge of the top connecting plate 43 and the top edge of the bottom connecting plate 41. A reinforcing plate 45 is fixedly connected between the bottom of the bottom connecting plate 41 and the outer circumference of the outer cylinder 1. The reinforcing plate 45 can support the bottom connecting plate 41, making it less prone to deformation. The top connecting plate 43... A connecting platform 46 is fixedly connected to the top. When the car is driving on a bumpy road, the top of the piston rod of the damper 3 will drive the top connecting plate 43 to move downward. The buffer spring 42 is installed between the bottom connecting plate 41 and the top connecting plate 43. Without support, the top connecting plate 43 presses the buffer spring 42, causing it to be compressed and elastically deformed to buffer and dampen the shock. When the top of the piston rod of the damper 3 drives the top connecting plate 43 to move upward, the pressure on the buffer spring 42 disappears, and the buffer spring 42 returns to its original shape under its own elastic force, so that it can continue to dampen the shock.

[0043] The top and bottom ends of the buffer spring 42 are embedded inside the limiting ring 44. The piston rod of the damper 3 passes through the center of the buffer spring 42, the center of the top connecting plate 43, and the center of the connecting frustum 46. When the buffer spring 42 is compressed, both ends of the buffer spring 42 are compressed into the limiting ring 44, which can limit the buffer spring 42 as a whole. The buffer spring 42 is compressed smoothly, making it less likely to bend or tilt, thus providing buffering and shock absorption.

[0044] The top connecting plate 43 is installed directly above the bottom connecting plate 41, and the connecting truncated cone 46 is installed directly above the top connecting plate 43.

[0045] By compressing the buffer spring 42, vibration can be reduced. As the piston rod of the damper 3 moves downward, the hydraulic oil inside the damper 3 can be squeezed for further buffering. The resistance of the hydraulic oil on the piston rod of the damper 3 can slow down the rebound speed of the buffer spring 42. Through the combination of the buffer spring 42 and the damper 3, the vehicle can be buffered and shock-absorbing, making the vehicle less prone to shaking.

[0046] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 1 to 6As shown:

[0047] A dustproof mechanism 5 is installed on the top of the outer cylinder 1;

[0048] The dustproof mechanism 5 includes a first ring 51 and a second ring 52. The first ring 51 is fixedly installed to the top of the outer cylinder 1 by screws, and the second ring 52 is fixedly installed to the middle of the bottom of the top connecting plate 43 by screws. A first hollow conical block 53 is fixedly connected to the center of the first ring 51, and a second hollow conical block 54 is fixedly connected to the center of the second ring 52. An elastic shrinkage cover 55 is fixedly connected between the outer conical surface of the first hollow conical block 53 and the outer conical surface of the second hollow conical block 54. By passing the piston rod at the top of the damper 3 through the center of the elastic shrinkage cover 55, the piston rod at the top of the damper 3 can be shielded and protected, so that external dust is not easy to adhere to the surface of the piston rod at the top of the damper 3. The piston rod moves smoothly and is not prone to jamming. It also reduces the amount of dust entering the oil reservoir of the damper 3 and ensures the cleanliness of the hydraulic oil.

[0049] The piston rod of the damper 3 passes sequentially through the center of the first ring 51, the center of the first hollow cone block 53, the center of the elastic contraction cover 55, the center of the second hollow cone block 54, and the center of the second ring 52. The first hollow cone block 53 and the second hollow cone block 54 are symmetrically installed along the elastic contraction cover 55.

[0050] The inner diameter of the first hollow conical block 53 gradually decreases from bottom to top, and the inner diameter of the second hollow conical block 54 gradually decreases from top to bottom. The surface of the elastic shrink cover 55 is a curved surface. The materials of the elastic shrink cover 55, the second hollow conical block 54, and the second ring 52 are all rubber.

[0051] The third embodiment is based on the first and second embodiments; please refer to [link / reference]. Figures 1 to 8 As shown:

[0052] An adjustment assembly 6 is installed at the top of the piston rod of damper 3;

[0053] The adjusting assembly 6 includes a locking nut 61 and a rotating pressing component 62. The locking nut 61 is threadedly installed on the top of the piston rod of the damper 3 near the connecting frustum 46 via an internal thread. An inverted conical bucket 63 is fixedly connected to the top of the locking nut 61. The rotating pressing component 62 is threadedly installed on the top of the piston rod of the damper 3 near the inverted conical bucket 63 via an internal thread. A fan-shaped spring 64 is fixedly connected to the side of the bottom of the rotating pressing component 62. The fan-shaped spring 64 is embedded inside the inverted conical bucket 63. By turning the locking nut 61, it connects to the piston rod at the top of the damper 3. The top thread of the piston rod at the top of the damper 3 is relatively long, allowing the locking nut 61 to be turned clockwise and counterclockwise, thereby causing different pressing forces on the buffer spring 42, thus adjusting the pressure level of the buffer spring 42.

[0054] The top of the piston rod of the damper 3 passes through the center of the locking nut 61, the center of the inverted conical bucket 63, and the center of the rotating pressing member 62. The inner diameter of the inverted conical bucket 63 gradually decreases from top to bottom. After the locking nut 61 is connected to the piston rod at the top of the damper 3, the rotating pressing member 62 can be threaded onto the piston rod at the top of the damper 3, so that the bottom end of the fan-shaped spring 64 contacts the conical surface on the inner side of the inverted conical bucket 63, thereby pressing the fan-shaped spring 64. Through the elastic deformation of the fan-shaped spring 64, combined with the action and reaction forces, the inverted conical bucket 63 is always subjected to downward elastic pressure, reducing the impact of bumps and making it less likely for the locking nut 61 to loosen.

[0055] The rotating pressing member 62 is installed directly above the locking nut 61. There are six fan-shaped springs 64, and the six fan-shaped springs 64 are distributed on the side of the bottom of the rotating pressing member 62. The bottom end of the fan-shaped springs 64 is in contact with the conical surface of the inner side of the inverted conical bucket 63.

[0056] In use, first install the bottom of the car shock absorber to the designated position on the car through the connecting ear 2, and then install the top of the car shock absorber to the designated position on the car through the connecting frustum 46.

[0057] By tightening the locking nut 61, which is connected to the piston rod at the top of the damper 3, and the long thread at the top of the piston rod at the top of the damper 3, the locking nut 61 can be tightened clockwise and counterclockwise, so that the pressure on the buffer spring 42 is different, and the pressure of the buffer spring 42 can be adjusted.

[0058] When the car is driving on a bumpy road, the top of the piston rod of the damper 3 will drive the top connecting plate 43 to move downward. The buffer spring 42 is installed between the bottom connecting plate 41 and the top connecting plate 43. Without support, the top connecting plate 43 presses the buffer spring 42 to compress and elastically deform, thus buffering and absorbing shock.

[0059] At the same time, both ends of the buffer spring 42 will be compressed into the inside of the limiting ring 44, which can limit the buffer spring 42 as a whole. The buffer spring 42 is compressed stably, making it less likely to bend or tilt, thus providing buffering and shock absorption.

[0060] Furthermore, by compressing the buffer spring 42, vibration can be reduced. As the piston rod of the damper 3 moves downward, the hydraulic oil inside the damper 3 can be squeezed for further buffering. The resistance of the hydraulic oil on the piston rod of the damper 3 can slow down the rebound speed of the buffer spring 42. Through the combination of the buffer spring 42 and the damper 3, the vehicle can be buffered and shock-absorbing, making the vehicle less prone to shaking.

[0061] When the top of the piston rod of the damper 3 drives the top connecting plate 43 to move upward, the pressing force on the buffer spring 42 disappears, and under the action of the buffer spring 42's own elastic force, the buffer spring 42 can return to its original shape so that it can continue to dampen the shock.

[0062] Furthermore, after the locking nut 61 is connected to the piston rod at the top of the damper 3, the rotating pressing part 62 can be threaded onto the piston rod at the top of the damper 3, so that the bottom end of the fan-shaped spring 64 contacts the conical surface inside the inverted conical bucket 63, thereby pressing the fan-shaped spring 64. Through the elastic deformation of the fan-shaped spring 64, combined with the action and reaction forces, the inverted conical bucket 63 is always subjected to downward elastic pressure, reducing the impact of bumps, and the locking nut 61 is not easy to loosen.

[0063] By using the piston rod at the top of the damper 3 to pass through the center of the elastic contraction cover 55, the piston rod at the top of the damper 3 can be shielded and protected, so that external dust is not easy to adhere to the surface of the piston rod at the top of the damper 3, the piston rod moves smoothly and is not prone to jamming, and dust is reduced from entering the oil reservoir of the damper 3, ensuring the cleanliness of the hydraulic oil.

[0064] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 limitations, 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.

[0065] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable automotive shock absorber characterized by, Include: The outer cylinder (1), and the side of the bottom of the surface of the outer cylinder (1) is fixedly connected with the connecting lug (2), the inside of the outer cylinder (1) is filled with hydraulic oil and nitrogen, the inside of the outer cylinder (1) is provided with a damper (3), the piston rod of the damper (3) extends to the outside of the outer cylinder (1), the top of the outer cylinder (1) is provided with a dustproof mechanism (5), the top end of the piston rod of the damper (3) is provided with an adjusting assembly (6); The damping mechanism (4) includes a bottom connecting disc (41), the bottom connecting disc (41) is fixedly installed on the top of the surface of the outer cylinder (1), the outer cylinder (1) passes through the center of the bottom connecting disc (41), the top of the bottom connecting disc (41) is provided with a buffer spring (42), the top end of the buffer spring (42) is provided with a top connecting disc (43), the edge of the bottom of the top connecting disc (43) and the edge of the top of the bottom connecting disc (41) are fixedly connected with a limiting ring (44), the bottom of the bottom connecting disc (41) and the outer circular surface of the outer cylinder (1) are fixedly connected with a reinforcing sheet (45), the top of the top connecting disc (43) is fixedly connected with a connecting circular table (46).

2. A tunable automotive shock absorber according to claim 1, wherein: The connecting lug (2) is two, and the two connecting lugs (2) are symmetrically installed on the side of the bottom of the surface of the outer cylinder (1) along the central axis of the outer cylinder (1), and the piston rod of the damper (3) is sealingly installed between the top end of the outer cylinder (1).

3. The adjustable automotive shock absorber of claim 1, wherein: The top end and the bottom end of the buffer spring (42) are embedded into the inside of the limiting ring (44), and the piston rod of the damper (3) passes through the center of the buffer spring (42), the center of the top connecting disc (43) and the center of the connecting circular table (46).

4. The adjustable automotive shock absorber of claim 1, wherein: The top connecting disc (43) is installed directly above the bottom connecting disc (41), and the connecting circular table (46) is installed directly above the top connecting disc (43).

5. The adjustable automotive shock absorber of claim 1, wherein: The dustproof mechanism (5) includes a first circular ring (51) and a second circular ring (52), the first circular ring (51) is fixedly installed on the top of the outer cylinder (1) by screws, the second circular ring (52) is fixedly installed on the middle of the bottom of the top connecting disc (43) by screws, the center of the first circular ring (51) is fixedly connected with a first hollow conical block (53), the center of the second circular ring (52) is fixedly connected with a second hollow conical block (54), and the conical surface on the outer side of the first hollow conical block (53) and the conical surface on the outer side of the second hollow conical block (54) are fixedly connected with an elastic shrink cover (55).

6. A tunable automotive shock absorber according to claim 5, wherein: The piston rod of the damper (3) passes through the center of the first circular ring (51), the center of the first hollow conical block (53), the center of the elastic shrink cover (55), the center of the second hollow conical block (54) and the center of the second circular ring (52) in sequence, and the first hollow conical block (53) and the second hollow conical block (54) are symmetrically installed along the elastic shrink cover (55).

7. The adjustable automotive shock absorber of claim 5 wherein: The inner diameter of the first hollow conical block (53) gradually decreases from bottom to top, the inner diameter of the second hollow conical block (54) gradually decreases from top to bottom, the surface of the elastic shrink cover (55) is a bending curved surface, and the materials of the elastic shrink cover (55), the second hollow conical block (54) and the second circular ring (52) are all rubber materials.

8. The adjustable automotive shock absorber of claim 1, wherein: The adjusting assembly (6) comprises a locking nut (61) and a rotating presser (62), the locking nut (61) is threadedly connected to the top end of the piston rod of the damper (3) and close to the position of the connecting circular table (46) through internal threads, the top of the locking nut (61) is fixedly connected with an inverted conical hopper (63), the rotating presser (62) is threadedly connected to the top end of the piston rod of the damper (3) and close to the position of the inverted conical hopper (63) through internal threads, the bottom side of the rotating presser (62) is fixedly connected with a plurality of fan-shaped elastic sheets (64), and the fan-shaped elastic sheets (64) are embedded into the inside of the inverted conical hopper (63).

9. An adjustable automotive shock absorber according to claim 8, wherein: The top end of the piston rod of the damper (3) passes through the center of the locking nut (61), the center of the inverted conical hopper (63) and the center of the rotating presser (62), and the inner diameter of the inverted conical hopper (63) gradually decreases from top to bottom.

10. The adjustable automotive shock absorber of claim 8, wherein: The rotating presser (62) is installed directly above the locking nut (61), the fan-shaped elastic sheets (64) are six in number and are distributed on the bottom side of the rotating presser (62), and the bottom end of the fan-shaped elastic sheets (64) is in contact with the conical surface on the inside of the inverted conical hopper (63).

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