Adjustable automobile shock absorber

Abstract

The utility model belongs to the technical field of automobile shock absorber spare and accessory parts, and discloses an adjustable automobile shock absorber which comprises a cylinder barrel, an inflation sealing valve assembly facilitating inflation sealing is arranged at the rear end of the cylinder barrel, a rubber bushing assembly is connected to the inflation sealing valve assembly, a piston rod is arranged in the cylinder barrel, and the piston rod is connected with the rubber bushing assembly. An oil seal is arranged between the inner wall of the cylinder barrel and the piston rod, an adjusting rod is movably arranged in the piston rod, an adjusting assembly used for adjusting the adjusting rod is arranged at the end of the piston rod, and the adjusting assembly comprises a coarse adjusting assembly and a fine adjusting assembly. The damper has the advantages that the fine adjustment assembly and the coarse adjustment assembly in the adjustment assembly are used for driving the adjustment rod to move, and therefore the functions of fine adjustment and coarse adjustment of damping of the damper are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile shock absorber parts, and particularly relates to an adjustable automobile shock absorber. Background Art

[0002] Shock absorbers are widely used in automobiles to accelerate the attenuation of frame and body vibrations to improve the ride smoothness of the car. Shock absorbers are essential components of motor vehicles. Their structure affects the handling and comfort of the vehicle. The stability and reliability of their performance are directly related to the safety, reliability, comfort and handling of the vehicle.

[0003] After searching, the dual adjustable damping shock absorber provided by the Chinese invention patent (application publication number: CN113389839A) includes an inner cylinder and an outer cylinder, the inner cavity of the inner cylinder is used as a working cylinder, the reserved gap between the inner cylinder and the outer cylinder is used as an oil storage cylinder, the upper ends of the outer cylinder and the inner cylinder are sealed and connected through a guide, a piston rod is inserted in the guide, and the lower end of the piston rod is provided with a recovery valve system, and the corresponding recovery valve system is also provided with a recovery adjustment mechanism for adjusting the oil flow volume between the upper working cylinder and the lower working cylinder; the lower ends of the outer cylinder and the inner cylinder are sealed and connected through a compression valve system, and the corresponding compression valve system is also provided with a compression adjustment mechanism for adjusting the oil flow volume between the working cylinder and the oil storage cylinder. The above-mentioned prior art can accurately adjust the matching of the compression damping after the recovery damping is adjusted according to user needs, thereby ensuring that the vehicle suspension performance is in the optimal state.

[0004] It can be seen from the above prior art that the prior art has only one adjustment method for adjusting the shock absorber, and sometimes it is difficult to adjust to the required requirements by only one adjustment method, that is, the accuracy is low, so this shortcoming needs to be improved urgently. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems. The utility model provides an adjustable automobile shock absorber, which has the advantages of being able to perform two adjustment modes, namely, coarse adjustment and fine adjustment, on the shock absorber frame.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: it includes a cylinder, the rear end of the cylinder is provided with an inflation sealing valve assembly for facilitating inflation and sealing, the inflation sealing valve assembly is connected to a rubber bushing assembly, a piston rod is provided in the cylinder, an oil seal is provided between the inner wall of the cylinder and the piston rod, an adjusting rod is movably provided inside the piston rod, an adjusting component for pushing the adjusting rod to move is provided at the end of the piston rod, and the adjusting component includes a coarse adjustment component and a fine adjustment component.

[0007] Preferably, an adjusting screw is installed at one end of the piston rod, a through oil port is provided in the adjusting screw, a radial oil outlet is provided on the piston rod, and the oil port is communicated with the oil outlet.

[0008] Preferably, the coarse adjustment assembly includes a coarse adjustment knob, a coarse adjustment bolt arranged on the coarse adjustment knob and a first nut installed on the piston rod, the coarse adjustment bolt is threadedly connected to the first nut, and one end of the coarse adjustment bolt abuts against the end of the adjusting rod.

[0009] Preferably, the fine-tuning assembly includes a fine-tuning knob, a fine-tuning bolt arranged on the fine-tuning knob, and a second nut installed on the side of the coarse-tuning knob, the fine-tuning bolt is threadedly connected to the second nut, a movable rod is movably provided in the coarse-tuning knob, a moving rod is movably provided in the coarse-tuning bolt, one end of the moving rod is abutted and cooperated with the adjusting rod, and the other end of the moving rod is abutted and cooperated with the movable rod.

[0010] Preferably, a blocking block is provided at one end of the adjusting rod away from the coarse adjustment bolt, and a matching hole for sealingly matching with the blocking block is provided on the adjusting screw.

[0011] Preferably, a sealing ring is provided between the outer periphery of the adjusting rod and the piston rod.

[0012] Preferably, a guide is provided between the inner wall of the cylinder and the piston rod, and a high-pressure oil seal is provided between the guide and the piston rod.

[0013] Preferably, a restoring valve assembly is provided at one end of the piston rod located in the cylinder.

[0014] Preferably, a movable floating piston assembly is provided between the recovery valve assembly and the inflatable sealing valve assembly.

[0015] Preferably, one end of the movable rod away from the fine-tuning bolt is tapered.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] The utility model provides an adjustable automobile shock absorber, which drives the movement of the adjustment rod through the fine adjustment component and the coarse adjustment component in the adjustment component, thereby achieving the function of fine adjustment and coarse adjustment of the shock absorber damping;

[0018] During coarse adjustment, the coarse adjustment knob is rotated to drive the coarse adjustment bolt to rotate, and the adjustment rod moves along the axis of the adjustment rod, thereby pushing the block to move closer to or away from the oil outlet, thereby achieving the function of coarse adjustment damping;

[0019] During fine-tuning, the fine-tuning knob is manually turned to drive the fine-tuning bolt to rotate, and the adjusting rod moves along the axial direction of the adjusting rod, thereby pushing the block to move closer to or away from the oil outlet, thereby achieving the effect of fine-tuning damping. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of A.

[0022] Description of the drawings: 11. Cylinder barrel; 12. Floating piston assembly; 2. Oil seal; 31. Piston rod; 311. Oil outlet; 32. Adjusting screw; 321. Oil through port; 322. Matching hole; 33. Adjusting rod; 331. Sealing ring; 332. Block; 4. Guide; 5. High-pressure oil seal; 6. Restoring valve assembly; 7. Adjusting component; 71. Coarse adjustment knob; 72. Coarse adjustment bolt; 73. First nut; 74. Fine adjustment knob; 741. Fine adjustment bolt; 75. Second nut; 76. Movable rod; 77. Moving rod; 8. Inflatable sealing valve assembly; 9. Rubber bushing assembly. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-Figure 2 As shown, an adjustable automobile shock absorber comprises a cylinder 11, a gas-filled sealing valve assembly 8 for easy gas-filled sealing is provided at the rear end of the cylinder 11, a rubber bushing assembly 9 is connected to the gas-filled sealing valve assembly 8, a piston rod 31 is provided in the cylinder 11, an oil seal 2 is provided between the inner wall of the cylinder 11 and the piston rod 31, a guide 4 is provided between the inner wall of the cylinder 11 and the piston rod 31, a high-pressure oil seal 5 is provided between the guide 4 and the piston rod 31, an adjusting rod 33 is movably provided inside the piston rod 31, an adjusting component 7 for pushing the adjusting rod 33 to move is provided at the end of the piston rod 31, and the adjusting component 7 comprises a coarse adjustment component and a fine adjustment component.

[0025] Furthermore, a restoring valve assembly 6 is provided at one end of the piston rod 31 located in the cylinder 11, and a movable floating piston assembly 12 is provided between the restoring valve assembly 6 and the inflation sealing valve assembly 8. The restoring valve assembly 6 is arranged in a ramp shape that is inclined downward and outward near the inner side surface of the piston rod 31, so as to facilitate the liquid to enter the restoring valve assembly 6 and the floating piston assembly 12 to form a sealed cavity structure.

[0026] The rubber bushing assembly 9 and the inflation sealing valve assembly 8 are fixedly connected by bolts.

[0027] The coarse adjustment assembly includes a coarse adjustment knob 71, a coarse adjustment bolt 72 arranged on the coarse adjustment knob 71 and a first nut 73 installed on the piston rod 31. The coarse adjustment bolt 72 is threadedly connected to the first nut 73, and one end of the coarse adjustment bolt 72 abuts against the end of the adjustment rod 33.

[0028] The fine-tuning assembly includes a fine-tuning knob 74, a fine-tuning bolt 741 arranged on the fine-tuning knob 74 and a second nut 75 installed on the side of the coarse-tuning knob 71. The fine-tuning bolt 741 is threadedly connected to the second nut 75. A movable rod 76 is movably provided in the coarse-tuning knob 71, and a movable rod 77 is movably provided in the coarse-tuning bolt 72. One end of the movable rod 77 abuts and cooperates with the adjusting rod 33, and the other end of the movable rod 77 abuts and cooperates with the movable rod 76. The axis of the movable rod 76 is perpendicular to the axis of the movable rod 77, and the end of the movable rod 76 away from the fine-tuning bolt 741 is tapered.

[0029] Preferably, the outer peripheral walls of the fine adjustment knob 74 and the coarse adjustment knob 71 are provided with evenly distributed protrusions, so that when the coarse adjustment knob 71 or the fine adjustment knob 74 is manually turned, the friction between the coarse adjustment knob 71 or the fine adjustment knob 74 and the hand is increased.

[0030] An adjusting screw 32 is installed at the end of the piston rod 31 away from the adjusting component 7, and a through oil port 321 is provided in the adjusting screw 32. A radial oil outlet 311 is provided on the piston rod 31, and the oil port 321 is connected to the oil outlet 311. A block 332 is provided at the end of the adjusting rod 33 away from the coarse adjustment bolt 72, and a matching hole 322 is provided on the adjusting screw 32 for sealing with the block 332. In the present application, the block 332 is a truncated cone, and the matching hole 322 is adapted to the shape of the block 332. In addition to the truncated cone, the block 332 can also be replaced by any shape such as a sphere or a cylinder.

[0031] A sealing ring 331 is provided between the outer periphery of the adjusting rod 33 and the piston rod 31 .

[0032] During use: when the coarse adjustment of the adjusting rod 33 is required, the coarse adjustment knob 71 is manually turned to drive the coarse adjustment bolt 72 to rotate, thereby causing relative movement between the coarse adjustment bolt 72 and the first nut 73, so that the coarse adjustment bolt 72 moves along the axial direction of the adjusting rod 33, thereby pushing the adjusting rod 33 to move along the axial direction of the adjusting rod 33, thereby pushing the block 332 to move toward the side close to the oil outlet 311, and when the coarse adjustment bolt 72 rotates in the opposite direction, the coarse adjustment bolt 72 moves in the opposite direction, and a gap will be formed between the coarse adjustment bolt 72 and the adjusting rod 33, and at this time the oil pressure will push the adjusting rod 33 to move in the opposite direction, thereby achieving the effect of coarse adjustment damping.

[0033] When fine-tuning is required, the fine-tuning knob 74 is manually turned to drive the fine-tuning bolt 741 to rotate, thereby causing relative movement between the fine-tuning bolt 741 and the first nut 73, so that the fine-tuning bolt 741 moves along the axial direction of the adjusting rod 33, thereby pushing the adjusting rod 33 to move along the axial direction of the adjusting rod 33, and then pushing the block 332 to move to the side close to the oil outlet 311, and when the fine-tuning bolt 741 rotates in the opposite direction, the fine-tuning bolt 741 moves in the opposite direction, and a gap will be formed between the fine-tuning bolt 741 and the adjusting rod 33, and at this time the oil pressure will push the adjusting rod 33 to move in the opposite direction, thereby achieving the effect of fine-tuning damping.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable automobile shock absorber, comprising a cylinder (11), a gas-filled sealing valve assembly (8) for easy gas-filled sealing is provided at the rear end of the cylinder (11), a rubber bushing assembly (9) is connected to the gas-filled sealing valve assembly (8), a piston rod (31) is provided in the cylinder (11), an oil seal (2) is provided between the inner wall of the cylinder (11) and the piston rod (31), and the characteristics are: An adjusting rod (33) is movably provided inside the piston rod (31), and an adjusting component (7) for pushing the adjusting rod (33) to move is provided at the end of the piston rod (31), wherein the adjusting component (7) comprises a coarse adjustment component and a fine adjustment component.

2. The adjustable automobile shock absorber according to claim 1, characterized in that: An adjusting screw (32) is mounted on one end of the piston rod (31), and a through oil port (321) is provided in the adjusting screw (32). A radial oil outlet (311) is provided on the piston rod (31), and the oil port (321) is in communication with the oil outlet (311).

3. The adjustable automobile shock absorber according to claim 2, characterized in that: The coarse adjustment assembly comprises a coarse adjustment knob (71), a coarse adjustment bolt (72) arranged on the coarse adjustment knob (71), and a first nut (73) mounted on the piston rod (31); the coarse adjustment bolt (72) is threadedly connected to the first nut (73); one end of the coarse adjustment bolt (72) is abutted against the end of the adjustment rod (33).

4. The adjustable automobile shock absorber according to claim 3, characterized in that: The fine-tuning assembly comprises a fine-tuning knob (74), a fine-tuning bolt (741) arranged on the fine-tuning knob (74), and a second nut (75) installed on the side of the coarse-tuning knob (71); the fine-tuning bolt (741) is threadedly connected to the second nut (75); a movable rod (76) is movably provided in the coarse-tuning knob (71); a moving rod (77) is movably provided in the coarse-tuning bolt (72); one end of the moving rod (77) is abutted and matched with the adjusting rod (33); and the other end of the moving rod (77) is abutted and matched with the movable rod (76).

5. The adjustable automobile shock absorber according to claim 4, characterized in that: A blocking block (332) is provided at one end of the adjusting rod (33) away from the coarse adjustment bolt (72), and a matching hole (322) which is sealingly matched with the blocking block (332) is provided on the adjusting screw rod (32).

6. An adjustable automobile shock absorber according to claim 1 or 5, characterized in that: A sealing ring (331) is provided between the outer periphery of the adjusting rod (33) and the piston rod (31).

7. The adjustable automobile shock absorber according to claim 6, characterized in that: A guide (4) is provided between the inner wall of the cylinder barrel (11) and the piston rod (31), and a high-pressure oil seal (5) is provided between the guide (4) and the piston rod (31).

8. The adjustable automobile shock absorber according to claim 7, characterized in that: A reset valve assembly (6) is provided at one end of the piston rod (31) located inside the cylinder (11).

9. The adjustable automobile shock absorber according to claim 8, characterized in that: A movable floating piston assembly (12) is provided between the recovery valve assembly (6) and the inflation sealing valve assembly (8).

10. The adjustable automobile shock absorber according to claim 4, characterized in that: One end of the movable rod (76) away from the fine-tuning bolt (741) is tapered.

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