Fine adjustment device of shock absorber

Abstract

The utility model provides a shock absorber fine adjustment device, which relates to the technical field of shock absorbers, and comprises an outer cylinder body, the inner bottom wall of the outer cylinder body is fixedly connected with a support column, the upper surface of the support column is provided with an inner cylinder body, the inner cylinder body is internally provided with a baffle plate, the upper surface of the baffle plate is provided with a flow channel, and the flow channel is provided with a flow channel. A flow channel is formed in the inner bottom wall of the inner cylinder body, a rotating disc is rotationally connected to the inner bottom wall of the inner cylinder body, an opening is formed in the bottom face of the rotating disc, a gear ring is fixedly connected to the bottom face of the rotating disc, a gear is placed below the rotating disc, and the gear is meshed with the gear ring. According to the fine adjustment device for the shock absorber, the rotary disc and the opening are arranged, the size of a flow channel of the inner cylinder body is adjusted through rotation of the rotary disc, circulation of shock absorption oil between the inner cylinder body and the outer cylinder body is adjusted through adjustment of the flow channel of the inner cylinder body, and then adjustment of the damping value is achieved; the problem that in the prior art, a common shock absorber cannot adjust the shock absorption damping value is solved.

Description

Technical Field

[0001] The utility model relates to a fine-tuning device, in particular to a shock absorber fine-tuning device, belonging to the technical field of shock absorbers. Background Art

[0002] Shock absorbers are widely used in automobiles to accelerate the attenuation of frame and body vibrations to improve the smoothness of the car's ride. When passing over uneven roads, although the shock-absorbing spring can filter the vibration of the road, the spring itself will still have reciprocating motion, and the shock absorber is used to suppress this spring jump. The car's shock absorption system is composed of springs and shock absorbers. The shock absorber is not used to support the weight of the car body, but to suppress the shock when the spring rebounds after shock absorption and absorb the energy of road impact. When the vehicle is driving on a bumpy road, the piston rod in the shock absorber continuously retracts and contracts in the cylinder, and the shock-absorbing oil in the cylinder continuously flows back and forth, buffering the impact force, reducing the degree of bumps, playing a shock-absorbing role, and increasing the stability of the vehicle's driving.

[0003] The internal flow channel size of common shock absorbers is fixed and cannot be adjusted, so the vibration buffering threshold provided by the shock absorber is in a fixed range, and its damping characteristics cannot be changed. However, sometimes in order to provide comfort on some uneven roads, the damping value of the shock absorber needs to be relatively small, so that not too much vibration is transmitted back to the vehicle body, improving driving comfort. When the vehicle is cornering at high speed, the damping value of the shock absorber must be larger to reduce the tilt of the vehicle body. Therefore, common traditional shock absorbers cannot take both points into account at the same time. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a shock absorber fine-tuning device to solve the problem that the shock absorber commonly used in the prior art cannot adjust the shock absorption damping value.

[0005] The utility model is realized through the following technical solutions:

[0006] A shock absorber fine-tuning device comprises an outer cylinder body, the inner bottom wall of the outer cylinder body is fixedly connected to a support column, the inner cylinder body is installed on the upper surface of the support column, a baffle is placed inside the inner cylinder body, a flow channel is opened on the upper surface of the baffle, and the inner bottom wall of the inner cylinder body is opened with a flow channel, the inner bottom wall of the inner cylinder body is rotatably connected to a turntable, the bottom surface of the turntable is opened with an opening, the bottom surface of the turntable is fixedly connected to a gear ring, a gear is placed below the turntable, the gear is meshed with the gear ring, a piston rod is fixedly connected to the upper surface of the baffle, the piston rod passes through the inner cylinder body and the outer cylinder body, an upper spring seat and a lower spring seat are fixedly provided at the top end of the piston rod and the bottom end of the outer cylinder body respectively, and a return spring is fixedly connected between the upper spring seat and the lower spring seat.

[0007] Preferably, a chamber is provided inside the lower spring seat, the inner bottom wall of the chamber is fixedly connected to a motor, the output end of the motor is fixedly connected to a rotating rod, the rotating rod passes through the outer cylinder body, and the other end of the rotating rod is fixedly connected to a gear, which is beneficial to the stability of the motor. The output end of the motor can drive the gear to rotate and then drive the gear ring to rotate, and the rotation of the gear ring can drive the turntable to rotate, thereby driving the area of ​​the opening blocked by the turntable to adjust the opening.

[0008] Preferably, connecting rings are placed on the sides of the upper spring seat and the lower spring seat, and a dust cover is installed between the two connecting rings, which is beneficial to the stability of the dust cover. The dust cover can protect the outer cylinder body and maintain the overall stability.

[0009] Preferably, slots are provided on the sides of the upper spring seat and the lower spring seat, and grooves are provided on the inner side surfaces of each connecting ring. An insert rod is slidably connected to the inner wall of each groove, and each insert rod is plugged into a slot adjacent to the insert rod, which is beneficial to the stability of the insert rod. The connection between the insert rod and the slot can maintain the stability of the connecting ring, thereby maintaining the overall stability.

[0010] Preferably, the other end of each of the insertion rods is fixedly connected to an auxiliary plate, the other side of each of the auxiliary plates is fixedly connected to an auxiliary rod, each of the auxiliary rods passes through a connecting ring close to it, and the size of the auxiliary plate is larger than the notch size of the groove, which is beneficial to the stability of the auxiliary plate. By pulling the auxiliary rod, the auxiliary plate can be driven to move and then the insertion rod can be driven to move.

[0011] Preferably, the outer side surface of each auxiliary plate is fixedly connected to an auxiliary spring, and the other end of each auxiliary spring is fixedly connected to the inner wall of the groove, which is beneficial to the stability of the auxiliary spring and thus maintains the overall stability.

[0012] Preferably, both ends of the upper spring seat and the lower spring seat are equipped with lifting rings, which is beneficial to the stability of the lifting rings, and the whole can be connected to the outside world through the lifting rings.

[0013] The utility model provides a shock absorber fine-tuning device, which has the following beneficial effects:

[0014] The shock absorber fine-tuning device, by setting a turntable and an opening, adjusts the size of the flow channel of the inner cylinder body by rotating the turntable, and adjusts the circulation of the shock-absorbing oil between the inner cylinder body and the outer cylinder body by adjusting the flow channel of the inner cylinder body, thereby achieving adjustment of the damping value, solving the problem that the shock absorber commonly seen in the prior art cannot adjust the shock-absorbing damping value.

[0015] The shock absorber fine-tuning device is provided with a slot and an insertion rod. When in normal use, the insertion rod is inserted in the slot to maintain the stability of the dust cover. When the dust cover is damaged and needs to be replaced, the auxiliary rod is pulled to drive the insertion rod to leave the slot so that the insertion rod is released from the limit, thereby separating the connecting ring from the upper spring seat and the lower spring seat, thereby facilitating the replacement of the dust cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of the dust cover of the utility model;

[0017] Figure 2 It is a cross-sectional view of the side view of the baffle of the utility model;

[0018] Figure 3 This is a detailed structural diagram of the outer cylinder of the utility model;

[0019] Figure 4 For the utility model Figure 3 A magnified schematic diagram of the structure at center A;

[0020] Figure 5 This is a schematic diagram of the gear structure of the utility model.

[0021] Description of Reference Numerals

[0022] 1. Outer cylinder; 2. Support column; 3. Inner cylinder; 4. Baffle; 5. Turntable; 6. Gear ring; 7. Gear; 8. Piston rod; 9. Upper spring seat; 10. Lower spring seat; 11. Return spring; 12. Motor; 13. Rotating rod; 14. Connecting ring; 15. Dust cover; 16. Insert rod; 17. Auxiliary plate; 18. Auxiliary rod; 19. Auxiliary spring; 20. Lifting ring. DETAILED DESCRIPTION

[0023] The embodiment of the utility model provides a shock absorber fine-tuning device.

[0024] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 , including an outer cylinder body 1, the inner bottom wall of the outer cylinder body 1 is fixedly connected with a support column 2, the upper surface of the support column 2 is installed with an inner cylinder body 3, a baffle 4 is placed inside the inner cylinder body 3, a flow channel is opened on the upper surface of the baffle 4, the inner bottom wall of the inner cylinder body 3 is opened with a flow channel, the inner bottom wall of the inner cylinder body 3 is rotatably connected with a turntable 5, the bottom surface of the turntable 5 is opened with an opening, the bottom surface of the turntable 5 is fixedly connected with a gear ring 6, a gear 7 is placed below the turntable 5, the gear 7 is meshed with the gear ring 6, a piston rod 8 is fixedly connected to the upper surface of the baffle 4, the piston rod 8 passes through the inner cylinder body 3 and the outer cylinder body 1, an upper spring seat 9 and a lower spring seat 10 are fixedly provided at the top end of the piston rod 8 and the bottom end of the outer cylinder body 1 respectively, and a return spring 11 is fixedly connected between the upper spring seat 9 and the lower spring seat 10.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 A chamber is provided inside the lower spring seat 10, and a motor 12 is fixedly connected to the inner bottom wall of the chamber. A rotating rod 13 is fixedly connected to the output end of the motor 12. The rotating rod 13 penetrates the outer cylinder body 1, and the other end of the rotating rod 13 is fixedly connected to the gear 7, which is beneficial to the stability of the motor 12. The output end of the motor 12 can drive the gear 7 to rotate and then drive the gear ring 6 to rotate. The rotation of the gear ring 6 drives the turntable 5 to rotate, and the area of ​​the slave adjustment opening blocked by the turntable 5 is adjusted.

[0026] Please refer to Figure 2 , Figure 3 , Figure 4 and Figure 5 , slots are provided on the sides of the upper spring seat 9 and the lower spring seat 10, and grooves are provided on the inner side of each connecting ring 14, and an insert rod 16 is slidably connected to the inner wall of each groove, and each insert rod 16 is plugged into the slot close to it, which is beneficial to the stability of the insert rod 16. The plugging of the insert rod 16 and the slot can maintain the stability of the connecting ring 14, thereby maintaining the overall stability, and the other end of each insert rod 16 is fixedly connected to an auxiliary plate 17, and the other side of each auxiliary plate 17 is fixedly connected to an auxiliary rod 18, and each auxiliary rod 18 passes through the connecting ring 14 close to it. The size of the auxiliary plate 17 is larger than the notch size of the groove, which is beneficial to the stability of the auxiliary plate 17. By pulling the auxiliary rod 18, the auxiliary plate 17 can be driven to move and then drive the insert rod 16 to move, and the outer side of each auxiliary plate 17 is fixedly connected to an auxiliary spring 19, and the other end of each auxiliary spring 19 is fixedly connected to the inner wall of the groove, which is beneficial to the stability of the auxiliary spring 19, thereby maintaining the overall stability.

[0027] Please refer to Figure 2 , Figure 3 , Figure 4 and Figure 5 Connecting rings 14 are placed on the sides of the upper spring seat 9 and the lower spring seat 10, and a dust cover 15 is installed between the two connecting rings 14, which is conducive to the stability of the dust cover 15. The dust cover 15 can protect the outer cylinder body 1, thereby maintaining the stability of the whole. Both ends of the upper spring seat 9 and the lower spring seat 10 are installed with lifting rings 20, which is conducive to the stability of the lifting rings 20. The whole can be connected to the outside world through the lifting rings 20.

[0028] When the utility model is in use: when the vehicle encounters a bumpy road and vibrates, the vibration causes the piston rod 8 to descend and squeeze the baffle 4, and the movement of the baffle 4 causes the shock-absorbing oil below the baffle 4 to flow to the top of the baffle 4 through the flow channel, and at the same time, the shock-absorbing oil below the baffle 4 flows to the inside of the outer cylinder body 1 through the flow channel, and at the same time, the piston rod 8 drives the baffle 4 to reset under the elastic force of the reset spring 11. At this time, the shock-absorbing oil inside the outer cylinder body 1 is transferred to the inner cylinder body 3 through the flow channel, and the shock-absorbing oil above the baffle 4 is transferred to the bottom of the baffle 4 through the flow channel. The piston rod 8 continuously performs telescopic movement in the inner cylinder body 3, and the shock-absorbing oil in the cylinder body continuously flows back and forth, which buffers the impact force, reduces the bumps and plays a shock-absorbing role.

[0029] When the damping needs to be adjusted, the motor 12 is started, and the output end of the motor 12 drives the rotating rod 13 to rotate, the rotation of the rotating rod 13 drives the gear 7 to rotate, the rotation of the gear 7 drives the gear ring 6 to rotate, and the rotation of the gear ring 6 drives the turntable 5 to rotate. The flow channel of the outer cylinder 1 can be blocked and the blocked area can be adjusted through the rotation of the turntable 5, thereby adjusting the flow volume of the flow channel to achieve the adjustment of the damping value, which solves the problem that the shock absorber commonly seen in the prior art cannot adjust the shock absorption damping value.

[0030] During normal use, the insertion rod 16 is inserted into the slot to maintain the stability of the dust cover 15. When the dust cover 15 is damaged and needs to be replaced, the auxiliary rod 18 is pulled to drive the insertion rod 16 to leave the slot so that the insertion rod 16 is released from the limit, and then the connecting ring 14 can be separated from the upper spring seat 9 and the lower spring seat 10, so as to facilitate the replacement of the dust cover 15.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A shock absorber fine-tuning device, comprising an outer cylinder (1), characterized in that: The inner bottom wall of the outer cylinder body (1) is fixedly connected to a support column (2), the upper surface of the support column (2) is mounted with an inner cylinder body (3), a baffle (4) is placed inside the inner cylinder body (3), a flow channel is provided on the upper surface of the baffle (4), and a flow channel is also provided on the inner bottom wall of the inner cylinder body (3); A turntable (5) is rotatably connected to the inner bottom wall of the inner cylinder body (3); an opening is formed on the bottom surface of the turntable (5); a gear ring (6) is fixedly connected to the bottom surface of the turntable (5); a gear (7) is placed below the turntable (5); the gear (7) meshes with the gear ring (6); A piston rod (8) is fixedly connected to the upper surface of the baffle (4), and the piston rod (8) passes through the inner cylinder body (3) and the outer cylinder body (1). An upper spring seat (9) and a lower spring seat (10) are respectively fixed to the top end of the piston rod (8) and the bottom end of the outer cylinder body (1), and a return spring (11) is fixedly connected between the upper spring seat (9) and the lower spring seat (10).

2. The shock absorber fine-tuning device according to claim 1, characterized in that: A chamber is provided inside the lower spring seat (10), the inner bottom wall of the chamber is fixedly connected to a motor (12), the output end of the motor (12) is fixedly connected to a rotating rod (13), the rotating rod (13) passes through the outer cylinder body (1), and the other end of the rotating rod (13) is fixedly connected to a gear (7).

3. The shock absorber fine-tuning device according to claim 1, characterized in that: Connecting rings (14) are placed on the sides of the upper spring seat (9) and the lower spring seat (10), and a dust cover (15) is installed between the two connecting rings (14).

4. The shock absorber fine-tuning device according to claim 3, characterized in that: The side surfaces of the upper spring seat (9) and the lower spring seat (10) are provided with slots, the inner side surface of each connecting ring (14) is provided with a groove, the inner wall of each groove is slidably connected to an insertion rod (16), and each insertion rod (16) is plugged into a slot adjacent to the slot.

5. The shock absorber fine-tuning device according to claim 4, characterized in that: The other end of each of the insertion rods (16) is fixedly connected to an auxiliary plate (17), the other side of each of the auxiliary plates (17) is fixedly connected to an auxiliary rod (18), each of the auxiliary rods (18) passes through a connecting ring (14) adjacent to it, and the size of the auxiliary plate (17) is larger than the notch size of the groove.

6. The shock absorber fine-tuning device according to claim 5, characterized in that: An auxiliary spring (19) is fixedly connected to the outer side surface of each auxiliary plate (17), and the other end of each auxiliary spring (19) is fixedly connected to the inner wall of the groove.

7. The shock absorber fine-tuning device according to claim 1, characterized in that: Both ends of the upper spring seat (9) and the lower spring seat (10) are provided with lifting rings (20).

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