Adjustable shock absorber

Abstract

The utility model discloses an adjustable shock absorber which comprises a cavity part, a rod part matched with the cavity part and a reset spring arranged between the cavity part and the rod part. The rod part comprises a damping rod body arranged in the cavity part, a through cavity is formed in the damping rod body, an oil limiting ring and an adjusting rod matched with the oil limiting ring are arranged in the through cavity, and the end of the adjusting rod is conical; the adjusting part abuts against the adjusting rod and is used for driving the adjusting rod to move in the through cavity and changing the gap between the adjusting rod and the oil limiting ring. The gap between the adjusting rod and the oil limiting ring is changed by designing the adjusting piece, then the flow of the damping medium passing through the gap is changed, the change of the damping springback damping speed is obtained, then the springback damping speed of the damper can be automatically adjusted, manual operation is not needed, and meanwhile the effect that a rider can automatically adjust the springback damping speed of the damper under different road condition riding states can be achieved. And adjusting the shock absorber.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of shock absorption, and specifically relates to an adjustable shock absorber. BACKGROUND

[0002] Shock absorbers are widely used in automobiles and two-wheeled vehicles to accelerate the attenuation of frame and body vibration and improve the ride comfort of vehicles. When passing over uneven road surfaces, although shock-absorbing springs can filter road vibrations, the springs themselves will still undergo reciprocating motion, and shock absorbers are used to suppress this spring jumping.

[0003] At present, shock absorbers are divided into ordinary shock absorption, hydraulic shock absorption, oil-gas separation hydraulic shock absorption, and oil-gas separation hydraulic shock absorption, which is adjustable at the upper end (divided into low speed and high speed) and adjustable at the lower end in terms of rebound damping. The adjustment of oil-gas separation hydraulic shock absorption at the present stage is mechanical adjustment, which drives the internal parts to rotate through the rotating handle at the outer end to achieve the adjustment effect.

[0004] The disadvantage of this method is manual adjustment, and the vehicle needs to be stopped during the adjustment process. INVENTION CONTENTS

[0005] The utility model aims to provide an adjustable shock absorber to solve the above problems existing in the prior art.

[0006] Technical scheme: An adjustable shock absorber comprises:

[0007] a cavity portion, a rod portion matched with the cavity portion, and a return spring arranged between the cavity portion and the rod portion;

[0008] The rod portion comprises:

[0009] a shock absorbing rod body arranged in the cavity portion, a through cavity formed in the shock absorbing rod body, a limiting oil ring and an adjusting rod matched with the limiting oil ring arranged in the through cavity, and a tapered end of the adjusting rod.

[0010] An adjusting member is in abutment with the adjusting rod and is used to drive the adjusting rod to move in the through cavity and change the gap between the adjusting rod and the limiting oil ring.

[0011] The utility model changes the gap between the adjusting rod and the limiting oil ring through the adjusting member, thereby changing the flow of the shock absorbing medium passing through the gap, obtaining the change in the rebound damping speed of the shock absorber, and automatically adjusting the rebound damping speed of the shock absorber without manual adjustment. Meanwhile, the rider can adjust the shock absorber in different road conditions.

[0012] In a further embodiment, an end portion of the shock absorbing rod body is provided with a shock absorbing piston, and a buffer rubber sheet adjacent to the shock absorbing piston.

[0013] The buffer rubber sheet is matched with the oil inlet hole.

[0014] The damping piston is provided with an oil inlet hole.

[0015] In a further embodiment, the damping rod body is provided with a flow oil hole in communication with the through cavity.

[0016] The adjusting rod is provided with an adjusting spring connected with the through cavity.

[0017] In a further embodiment, the damping rod body is provided with a rod body fixing lug at an end away from the damping piston, and the rod body fixing lug is provided with a spring rod body fixing block.

[0018] The rod body fixing lug is provided with an adjusting cavity.

[0019] In a further embodiment, the adjusting member comprises:

[0020] An adjusting motor is connected with the rod body fixing lug, and an output flat shaft is arranged at an output end of the adjusting motor.

[0021] An adjusting plug is arranged in the adjusting cavity and sleeved with the output flat shaft, an end of the adjusting plug is provided with a flat groove matched with the output flat shaft, a bottom of the adjusting plug is tapered, and a surface of the adjusting plug is provided with a thread, and the adjusting cavity is provided with a screw groove matched with the thread.

[0022] The bottom of the adjusting plug is in abutment with the adjusting rod away from the tapered end.

[0023] By designing the output flat shaft and the flat groove, the adjusting plug can move up and down along the thread groove, and then the tapered part of the bottom of the adjusting plug is in abutment with the adjusting rod, the movement of the adjusting rod is completed, and then the gap between the tapered part of the end of the adjusting rod and the oil limiting ring is changed.

[0024] In a further embodiment, the cavity comprises:

[0025] A sleeve fixing lug is provided with an adjusting channel extending into the damping sleeve, and the adjusting channel is matched with an adjusting plug or an adjusting cover.

[0026] A damping sleeve is connected with the sleeve fixing lug, the damping sleeve is provided with a spring sleeve fixing block outside, and the damping sleeve is matched with an adjusting piston.

[0027] A sleeve sealing member is arranged at an end of the damping sleeve away from the sleeve fixing lug and sleeved with the damping rod body.

[0028] The sleeve sealing member is a prior art and can be selected by a person skilled in the art according to actual needs, and can comprise an annular end part, a sealing ring arranged in an inner ring and an outer ring of the end cover, the sealing ring of the inner ring is used for sealing the damping rod body, and the sealing ring of the outer ring is used for sealing the damping sleeve.

[0029] In further embodiments, the reset spring is disposed between the sleeve retaining lug and the rod retaining lug.

[0030] In further embodiments, the shock absorbing piston and shock absorbing rod are located within the shock absorbing sleeve, the shock absorbing piston being adapted to the shock absorbing sleeve.

[0031] Beneficial effects: the utility model discloses an adjustable shock absorber, the utility model discloses an adjusting piece is designed to change the gap of adjusting rod and oil limiting ring, and then changes the flow of shock absorbing medium through the gap, obtains the change of shock absorbing rebound damping fast and slow, and then can automatically adjust the rebound damping fast and slow of shock absorber, need not manual operation, can realize simultaneously that the rider is in different road conditions riding state, adjusts shock absorber. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is the structure schematic diagram of the utility model.

[0033] Figure 2 It is the three -dimensional section structure schematic diagram of the utility model.

[0034] Figure 3 It is the plane visual angle section structure schematic diagram of the utility model.

[0035] Figure 4 It is the rod structure schematic diagram of the utility model.

[0036] Reference signs are:

[0037] 1, cavity part, 11, sleeve retaining lug, 12, adjusting channel, 13, shock absorbing sleeve, 14, sleeve sealing element, 15, adjusting piston, 16, spring sleeve retaining block,

[0038] 2, rod, 21, rod retaining lug, 22, shock absorbing rod, 221, flow oil hole, 222, oil limiting ring, 23, shock absorbing piston, 24, adjusting motor, 25, spring rod retaining block,

[0039] 241, output flat shaft, 242, adjusting bolt, 245, adjusting rod,

[0040] 26, buffer rubber sheet. DETAILED DESCRIPTION

[0041] The application relates to an adjustable shock absorber, which is explained in detail below through specific embodiments.

[0042] An adjustable shock absorber comprises:

[0043] a cavity part 1, a rod 2 adapted to the cavity part 1, and a reset spring disposed between the cavity part 1 and the rod 2;

[0044] The rod 2 comprises:

[0045] A damping rod body 22 is arranged in the cavity 1, a through cavity is formed in the damping rod body 22, a limiting oil ring 222 and an adjusting rod 245 matched with the limiting oil ring 222 are arranged in the through cavity, and one end of the adjusting rod 245 is tapered;

[0046] In actual use, the tapered structure can also be designed as a ramp or other shapes, as long as the gap between the adjusting rod 245 and the limiting oil ring 222 can be changed;

[0047] An adjusting part 24 is arranged in abutment with the adjusting rod 245, and is used for driving the adjusting rod 245 to move in the through cavity, so as to change the gap between the adjusting rod 245 and the limiting oil ring 222.

[0048] The adjusting part 24 is designed to change the gap between the adjusting rod 245 and the limiting oil ring 222, so as to change the flow of damping medium passing through the gap, obtain the change of the rebound damping speed of the shock absorber, and then automatically adjust the rebound damping speed of the shock absorber without manual operation.

[0049] In use, a Bluetooth module can be designed to cooperate with the adjusting motor 241, and the Bluetooth module is designed in the adjusting motor 241, the power rotation is controlled through the Bluetooth module, the internal damping adjustment of the shock absorber is driven, the flow of hydraulic oil or other damping medium is changed, and the change of the rebound damping speed of the shock absorber is obtained.

[0050] Or other control switches are used to control the start and stop of the adjusting motor 241, so as to achieve the intelligent adjustment effect. The remote control module belongs to the prior art, or a switch can be directly designed to drive the start or stop of the adjusting motor 241.

[0051] An end of the damping rod body 22 is provided with a damping piston 23, and a buffer rubber sheet 26 adjacent to the damping piston 23;

[0052] The buffer rubber sheet 26 is matched with the oil inlet hole;

[0053] The damping piston 23 is provided with the oil inlet hole.

[0054] The damping rod body 22 is provided with a flow oil hole 221 in communication with the through cavity;

[0055] The adjusting rod 245 is provided with an adjusting spring connected with the through cavity.

[0056] An end of the damping rod body 22 away from the damping piston 23 is provided with a rod body fixing lug 21, and the rod body fixing lug 21 is provided with a spring rod body fixing block 25;

[0057] The rod body fixing lug 21 is provided with an adjusting cavity.

[0058] The adjusting member 24 comprises:

[0059] An adjusting motor 241 is connected with the rod body fixing lug 21, and an output flat shaft 241 is arranged at an output end of the adjusting motor 241;

[0060] An adjusting bolt 242 is arranged in the adjusting cavity, and is sleeved with the output flat shaft 241, an end of the adjusting bolt 242 is provided with a flat groove matched with the output flat shaft 241, the bottom is conical, and the surface is provided with threads, and a screw groove matched with the threads is arranged in the adjusting cavity;

[0061] In actual use, the bottom can also be designed as a ramp or other shapes, as long as it can resist the movement of the adjusting rod 245.

[0062] The bottom of the adjusting bolt 242 is in abutment with the conical end away from the adjusting rod 245.

[0063] By designing the output flat shaft 241 and the flat groove, the adjusting bolt 242 can move up and down along the screw groove when rotating, and then the conical part at the bottom of the adjusting bolt 242 is in abutment with the adjusting rod 245, the movement of the adjusting rod 245 is completed, and then the gap between the conical part at the end of the adjusting rod 245 and the oil limiting ring 222 is changed.

[0064] The cavity part 1 comprises:

[0065] A sleeve fixing lug 11 is provided with an adjusting channel 12 extending into the damping sleeve 13, and an adjusting plug or adjusting cover is matched with the adjusting channel 12.

[0066] By designing the adjusting channel 12, the damping medium is injected, the position of the adjusting piston 15 is changed, and the damping softness and hardness of the shock absorber is adjusted.

[0067] The damping sleeve 13 is connected with the sleeve fixing lug 11, the outer surface of the damping sleeve 13 is provided with a spring sleeve fixing block 16, and the adjusting piston 15 is matched with the damping sleeve 13.

[0068] A sleeve sealing member 14 is arranged at an end of the damping sleeve 13 away from the sleeve fixing lug 11, and is sleeved with the damping rod body 22.

[0069] The sleeve sealing member 14 is a prior art, which can be selected by those skilled in the art according to actual needs, and can comprise an annular end part, a sealing ring arranged in the inner ring and the outer ring of the end cover, the sealing ring in the inner ring is used for sealing the damping rod body 22, and the sealing ring in the outer ring is used for sealing the damping sleeve 13.

[0070] The reset spring is arranged between the sleeve fixing lug 11 and the rod body fixing lug 21.

[0071] The damping piston 23 and the damping rod body 22 are located in the damping sleeve 13, and the damping piston 23 is matched with the damping sleeve 13.

[0072] Working principle description: After the shock absorber is assembled, the damping sleeve 13 has damping medium, taking damping oil as an example, when working, the output flat shaft 241 is driven to rotate by the motor 241, the adjusting bolt 242 is driven to rotate, the adjusting bolt 242 is driven to move up and down in the adjusting cavity, the adjusting rod 245 is driven to move in the through cavity, the gap between the tapered part at the end of the adjusting rod 245 and the oil limiting ring 222 is changed, the flow speed of the damping oil is changed, and the change of the damping and rebound damping speed is adjusted.

[0073] When the damping rod body 22 is compressed, the damping piston 23 is driven to move towards the adjusting piston 15, at this time, the damping oil in the damping sleeve 13 between the damping piston 23 and the adjusting piston 15 is pressed to pass through the oil inlet hole on the damping piston 23 and rush through the buffer rubber sheet 26, enters the through cavity through the flow oil hole 221, and flows into the damping sleeve 13 again through the oil limiting ring 222, the oil circuit is circulated, the gap between the tapered part at the end of the adjusting rod 245 and the oil limiting ring 222 is changed, the flow of the hydraulic oil is changed, and the change of the damping and rebound damping speed is adjusted.

[0074] When rebounding, the reset spring works and abuts against the spring rod body fixed block 25 to drive the damping rod body 22 to reset, at this time, the damping rod body 22 drives the damping piston 23 to move towards the sleeve sealing element 14, at this time, the damping oil between the damping piston 23 and the sleeve sealing element 14 enters the through cavity through the flow oil hole 221, and flows into the damping sleeve 13 again through the oil limiting ring 222, and the oil circuit is circulated.

[0075] The preferred embodiments of the utility model are described in detail in combination with the drawings, but the utility model is not limited to the specific details in the above embodiments, and various equivalent transformations can be made to the technical scheme of the utility model within the technical concept of the utility model, and these transformations all belong to the protection scope of the utility model.

Claims

1. An adjustable shock absorber, comprising: a cavity (1), a rod (2) adapted to the cavity (1); characterized in that the rod (2) comprises: a shock absorber rod (22) with a through cavity inside, a limiting oil ring (222) and an adjusting rod (245) adapted to the limiting oil ring (222) inside the through cavity; an adjusting part (24) abutting against the adjusting rod (245) and driving the adjusting rod (245) to move in the through cavity.

2. A regulated shock absorber according to claim 1, characterized in that: One end of the adjusting rod (245) is conical.

3. The adjustable shock absorber of claim 1, wherein: An end of the shock absorber rod (22) is provided with a shock absorber piston (23), and a buffer rubber sheet (26) adjacent to the shock absorber piston (23); An oil inlet hole is formed on the shock absorber piston (23).

4. The adjustable shock absorber of claim 1, wherein: A flow oil hole (221) communicating with the through cavity is formed on the shock absorber rod (22); An adjusting spring connected with the through cavity is arranged on the adjusting rod (245).

5. The adjustable shock absorber of claim 1, wherein: A rod body fixing lug (21) is arranged at an end of the shock absorber rod (22) away from the shock absorber piston (23), and a spring rod body fixing block (25) is arranged on the rod body fixing lug (21); An adjusting cavity is formed in the rod body fixing lug (21).

6. The adjustable shock absorber of claim 1, wherein: The adjusting part (24) comprises: an adjusting motor (241) connected with the rod body fixing lug (21), an output flat shaft (241) being arranged at an output end of the adjusting motor (241); an adjusting bolt (242) located in the adjusting cavity, sleeved on the output flat shaft (241), an end of the adjusting bolt (242) being provided with a flat groove adapted to the output flat shaft (241), a bottom of the adjusting bolt (242) being conical, and a surface of the adjusting bolt (242) being provided with threads, and a screw groove adapted to the threads being formed in the adjusting cavity; the bottom of the adjusting bolt (242) abutting against an end of the adjusting rod (245) away from the conical end.

7. The adjustable shock absorber of claim 1, wherein: The cavity (1) comprises: a sleeve fixing lug (11) provided with an adjusting channel (12) extending into a shock absorber sleeve (13); the shock absorber sleeve (13) connected with the sleeve fixing lug (11), the shock absorber sleeve (13) being provided with a spring sleeve fixing block (16) outside, and the shock absorber sleeve (13) being adapted with an adjusting piston (15) inside; a sleeve sealing part (14) arranged at an end of the shock absorber sleeve (13) away from the sleeve fixing lug (11) and sleeved on the shock absorber rod (22).

8. The adjustable shock absorber of claim 1, wherein: The shock absorber piston (23) and the shock absorber rod (22) are located in the shock absorber sleeve (13), and the shock absorber piston (23) is adapted to the shock absorber sleeve (13).

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