A shock absorber with flexible pressure adjustment for a vehicle

Abstract

The application discloses a flexible pressure-adjustable shock absorber for automobiles and belongs to the technical field of shock absorbers. The shock absorber comprises an oil storage cylinder, a working cylinder internally provided with shock absorber oil, a connecting rod located in the inner cavity of the working cylinder, a piston plate fixedly connected to one end of the connecting rod, wherein the surface of the piston plate is symmetrically provided with first through holes, one of the first through holes is fixedly connected with a stretch valve, and the other first through hole is fixedly connected with a flow valve; a bottom plate fixedly connected to the inner wall of the working cylinder, the surface of the bottom plate is symmetrically provided with second through holes, one of the second through holes is fixedly connected with a compression valve, and the other second through hole is fixedly connected with a compensation valve; a rotating plate rotatably connected to the surface of the piston plate, the surface of the rotating plate is symmetrically provided with fifth through holes, the fifth through holes correspond to the first through holes, the inner wall of the working cylinder is provided with a power mechanism, and the power mechanism is used for driving the rotating plate to rotate. The shock absorber can automatically adjust the damping size according to road conditions, and is convenient to use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shock absorbers, in particular to a flexible pressure-adjustable shock absorber for automobiles. BACKGROUND

[0002] The shock absorber is mainly used to suppress the shock of the rebound of the spring after absorbing the shock and the impact from the road. When passing through uneven road, 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 jumping.

[0003] The structure of the hydraulic shock absorber is basically similar to that of the suction pump, and the difference is that the upper end of the steel body of the hydraulic shock absorber is closed, and a small hole is left on the valve. When the wheel encounters a protruding road and is impacted, the cylinder moves upward, and the piston moves downward in the inner cylinder. At this time, the piston valve is pushed open upward, and the oil on the lower side of the piston in the inner cylinder cavity flows to the upper side of the piston without any resistance. At the same time, this part of the oil flows into the oil cavity between the inner and outer cylinders through the small hole on the bottom valve. In this way, the impact load of the concave-convex road on the vehicle is effectively attenuated. When the wheel falls down after passing over the protruding ground, the cylinder will also move downward, and the piston will move upward relative to the cylinder. When the piston moves upward, the oil pushes open the bottom valve and flows to the inner cylinder, and the oil on the upper side of the piston in the inner cylinder flows to the lower side through the small hole on the piston valve. At this time, the oil flowing through the small hole will be subjected to a great resistance, which produces a good damping effect and achieves the purpose of shock absorption.

[0004] However, the required damping of the vehicle is different when driving on different roads: when driving on a smooth road, the damping needs to be small to avoid affecting the normal work of the spring; when driving on a bumpy road, the damping needs to be large to avoid the vehicle jumping up and down due to the too fast recovery speed of the spring. The resistance of the piston is determined by the damping hole, and in the prior art, the hole diameter cannot be changed after the damping hole is formed, which leads to the fact that the damping of the existing shock absorber cannot be adjusted. Therefore, improvement is needed. SUMMARY

[0005] The purpose of the present application is to solve the problem of the damping of the shock absorber in the prior art being unable to be adjusted, and to provide a flexible pressure-adjustable shock absorber for automobiles.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0007] The application discloses a flexible pressure-adjustable shock absorber for an automobile, which comprises an oil storage cylinder, a working cylinder with shock absorber oil arranged in the working cylinder, a connecting rod arranged in the inner cavity of the working cylinder, one end of the connecting rod penetrating through the oil storage cylinder and the working cylinder, the other end of the connecting rod being fixedly connected with a piston plate, the surface of the piston plate being symmetrically provided with first through holes, one of the first through holes being fixedly connected with a tension valve, the other of the first through holes being fixedly connected with a flow valve, a bottom plate fixedly connected to the inner wall of the working cylinder, the surface of the bottom plate being symmetrically provided with second through holes, one of the second through holes being fixedly connected with a compression valve, the other of the second through holes being fixedly connected with a compensation valve, a rotating plate rotatably connected to the surface of the piston plate, the surface of the rotating plate being symmetrically provided with fifth through holes corresponding to the first through holes, and a power mechanism arranged on the inner wall of the working cylinder and used for driving the rotating plate to rotate.

[0008] In order to facilitate the shock absorption during the driving of the automobile, preferably, the tension valve, the flow valve, the compression valve and the compensation valve are all one-way valves, the working cylinder is provided with an upper chamber and a lower chamber, the flow valve is unidirectionally communicated to the upper chamber, the tension valve and the compensation valve are unidirectionally communicated to the lower chamber, and the compression valve is communicated to the inner cavity of the oil storage cylinder.

[0009] In order to facilitate the driving of the rotating plate to rotate, preferably, the power mechanism comprises a rotating pipe rotatably connected to the outer wall of the connecting rod, one end of the rotating pipe being fixedly connected with the rotating plate, the other end of the rotating pipe being fixedly connected with a first gear, a supporting plate fixedly connected to the outer wall of the connecting rod, a rotating rod rotatably connected to the side wall of the supporting plate, a second gear and a third gear fixedly connected to the outer wall of the rotating rod, the second gear being meshed with the first gear, the inner wall of the working cylinder being symmetrically provided with grooves, one of the grooves being fixedly connected with a rack, the rack being meshed with the third gear, an extension and contraction ring mechanism fixedly connected between the piston plate and the bottom plate, and a second supporting ring fixedly connected to the surface of the piston plate.

[0010] In order to reduce the flow of the shock absorber oil from the gap of the rack, further, the extension and contraction ring mechanism comprises a moving ring fixedly connected to the bottom of the piston plate, the inner wall of the working cylinder is fixedly connected with a first supporting ring, the lower end of the first supporting ring is fixedly connected with the bottom plate, the surface of the first supporting ring is provided with a first sliding groove, and the moving ring is slidingly connected in the first sliding groove.

[0011] In order to facilitate the limitation of the moving range of the moving ring, further, the inner wall of the first supporting ring is symmetrically provided with second sliding grooves, the outer wall of the moving ring is symmetrically fixedly connected with first sliding blocks, the first sliding blocks correspond to the second sliding grooves one by one, and the first sliding blocks are slidingly connected in the second sliding grooves.

[0012] In order to conveniently reduce the noise generated in the damping process, further, the outer wall of the connecting rod is fixedly connected with a limiting seat, the surface of the limiting seat is fixedly connected with a first buffer block, the limiting seat is located above the rotating pipe, and the surface of the first sliding block is fixedly connected with a second buffer block in a symmetrical manner.

[0013] In order to quickly slow down the requirement of the shock bomb, further, the inner wall of the first supporting ring is fixedly connected with a fixed disc, the surface of the fixed disc is provided with a third through hole, the bottom of the fixed disc is fixedly connected with a moving disc through a first spring, the outer diameter of the moving disc is consistent with the inner diameter of the first supporting ring, the surface of the moving disc is provided with a fourth through hole, the third through hole and the fourth through hole are matched with each other, and the third through hole, the fourth through hole and the compression valve correspond to each other.

[0014] In order to conveniently connect the fixed disc and the moving disc, further, the bottom of the fixed disc is fixedly connected with a supporting rod, the bottom of the supporting rod is provided with a fourth sliding groove, the surface of the moving disc is fixedly connected with a sliding rod, the sliding rod is slidingly connected in the fourth sliding groove, the inner wall of the supporting rod is provided with a fifth sliding groove in a symmetrical manner, the outer wall of the sliding rod is fixedly connected with a second sliding block in a symmetrical manner, and the second sliding block is slidingly connected in the fifth sliding groove.

[0015] Preferably, the top of the upper chamber is slidingly connected with a push rod, one end of the push rod extending to the outside of the upper chamber is fixedly connected with a push plate, a pressure sensor is installed on the push plate, the pressure sensor is connected with the second spring between the inner wall of the top of the oil storage cylinder, and the limiting seat is in contact with the push rod when moving upwards.

[0016] In order to facilitate the rotation of the rotating plate, preferably, the surface of the piston plate is provided with a third sliding groove, the bottom of the rotating plate is fixedly connected with a rotating ring, and the rotating ring is slidingly connected in the third sliding groove.

[0017] Compared with the prior art, the present application provides a flexible pressure-adjustable shock absorber for automobile, which has the following advantages:

[0018] (1) this flexible pressure-adjustable shock absorber for automobile, when the automobile runs on flat road, the fifth through hole and the first through hole are coaxial, at this time, the flow-through space of the first through hole is maximum, and the damping force is minimum, when the wheel encounters the raised road and is impacted, the oil storage cylinder and the working cylinder move upward, the piston plate moves downward in the working cylinder, the rotation of the rotation rod is driven by the design of the rack and the third gear, the rotation of the second gear is driven by the rotation of the rotation rod, the rotation of the first gear is driven by the rotation of the second gear, the rotation of the rotation tube is driven by the rotation of the first gear, and the rotation of the rotation plate is driven by the rotation of the rotation tube, so that the fifth through hole and the first through hole are mutually dislocated, the greater the impact of the wheel, the greater the angle of rotation of the rotation plate, and the smaller the flow-through channel between the fifth through hole and the first through hole, and the greater the damping, in the whole movement process of the piston plate, the fifth through hole and the first through hole can always flow, and vice versa, so that the shock absorber can automatically adjust the damping according to the road conditions, and is convenient to use.

[0019] (2) this flexible pressure-adjustable shock absorber for automobile, when the piston plate moves downward in the working cylinder, part of the shock absorber oil in the lower chamber flows into the oil storage cylinder from the third through hole, the fourth through hole and the compression valve in sequence, at this time, the shock absorber oil flows relatively smoothly, and the damping is small, when the piston plate moves upward in the working cylinder, the shock absorber oil in the oil storage cylinder flows into the lower chamber from the compensation valve, the fourth through hole and the third through hole in sequence, at this time, the flow-through path of the shock absorber oil is relatively long, and the damping is relatively large, so that the shock absorber can quickly reduce the shock and improve the stability. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure schematic view of a flexible pressure-adjustable shock absorber for automobile proposed in the application;

[0021] Figure 2 It is a structure schematic view of a flexible pressure-adjustable shock absorber for automobile proposed in the application; Figure 1 It is an A-A sectional view structure schematic view in the flexible pressure-adjustable shock absorber for automobile proposed in the application;

[0022] Figure 3 It is a B structure enlarged schematic view in the flexible pressure-adjustable shock absorber for automobile proposed in the application; Figure 1

[0023] Figure 4 It is a C structure enlarged schematic view in the flexible pressure-adjustable shock absorber for automobile proposed in the application; Figure 2

[0024] Figure 5 It is a power mechanism structure schematic view in the flexible pressure-adjustable shock absorber for automobile proposed in the application;

[0025] Figure 6 It is a flexible pressure-adjustable shock absorber for automobile proposed in the application​​Figure 5 D-D cross-sectional structure schematic diagram in the figure;

[0026] Figure 7 Part structure schematic diagram of a flexible pressure-adjustable shock absorber for automobile Figure 1 ;

[0027] Figure 8 Part structure schematic diagram of a flexible pressure-adjustable shock absorber for automobile Figure 2 .

[0028] In the figure: 1, oil storage cylinder; 2, working cylinder; 3, connecting rod; 4, piston plate; 5, extension valve; 6, flow valve; 7, first through hole; 8, bottom plate; 9, second through hole; 10, compression valve; 11, compensation valve; 12, fixed disc; 13, third through hole; 14, first spring; 15, moving disc; 16, fourth through hole; 17, rotating plate; 18, fifth through hole; 19, rotating tube; 20, first gear; 21, support plate; 22, rotating rod; 23, second gear; 24, third gear; 25, groove; 26, rack; 27, first support ring; 28, first sliding groove; 29, moving ring; 30, second sliding groove; 31, first sliding block; 32, third sliding groove; 33, rotating ring; 34, limiting seat; 35, first buffer block; 36, upper chamber; 37, lower chamber; 38, support rod; 39, fourth sliding groove; 40, sliding rod; 41, fifth sliding groove; 42, second sliding block; 43, second buffer block; 44, second support ring; 45, push rod; 46, push plate; 47, pressure sensor; 48, second spring. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments of the present application.

[0030] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] Example 1:

[0032] Reference Figures 1-2The utility model provides a kind of flexible pressure-adjustable shock absorber for automobile, including oil storage cylinder 1 and the working cylinder 2 with shock absorber oil inside, further including: connecting rod 3 in the inner cavity of working cylinder 2, one end of connecting rod 3 penetrates oil storage cylinder 1, working cylinder 2, the other end of connecting rod 3 is fixedly connected with piston plate 4, wherein the surface of piston plate 4 is symmetrically opened with first through hole 7, one of first through hole 7 is fixedly connected with extension valve 5, and the other first through hole 7 is fixedly connected with flow valve 6;Bottom plate 8 is fixedly connected in the inner wall of working cylinder 2, the surface of bottom plate 8 is symmetrically opened with second through hole 9, one of second through hole 9 is fixedly connected with compression valve 10, and the other second through hole 9 is fixedly connected with compensation valve 11;Rotary connection is established between the surface of piston plate 4 and rotation plate 17, the surface of rotation plate 17 is symmetrically opened with fifth through hole 18, fifth through hole 18 corresponds with first through hole 7, and the inner wall of working cylinder 2 is provided with power mechanism, and power mechanism is used to drive rotation plate 17 to rotate.

[0033] Referring to Figure 2 Extension valve 5, flow valve 6, compression valve 10 and compensation valve 11 are all one-way valves, and the working cylinder 2 is provided with an upper chamber 36 and a lower chamber 37, the flow valve 6 is one-way conducted to the upper chamber 36, the extension valve 5 and the compensation valve 11 are both one-way conducted to the lower chamber 37, and the compression valve 10 is conducted to the inner cavity of the oil storage cylinder 1.

[0034] When the piston plate 4 moves relatively downward in the working cylinder 2, the volume of the upper chamber 36 becomes larger, and the volume of the lower chamber 37 becomes smaller, the flow valve 6 is opened, the shock absorber oil in the lower chamber 37 enters the upper chamber 36 through the flow valve 6, and part of the shock absorber oil opens the compression valve 10 to enter the oil storage cylinder 1, the throttling effect of the flow valve 6 and the compression valve 10 on the shock absorber oil makes the shock absorber produce damping effect when the shock absorber moves in compression.

[0035] When the piston plate 4 moves relatively upward in the working cylinder 2, the volume of the upper chamber 36 becomes smaller, and the volume of the lower chamber 37 becomes larger, the extension valve 5 is opened, the shock absorber oil in the upper chamber 36 enters the lower chamber 37 through the extension valve 5, and part of the shock absorber oil opens the compensation valve 11 to enter the lower chamber 37 from the oil storage cylinder 1, the throttling effect of the extension valve 5 and the compensation valve 11 on the shock absorber oil makes the shock absorber produce damping effect when the shock absorber moves in extension.

[0036] Referring to Figures 5-6The power mechanism comprises: a rotating pipe 19 rotatably connected to the outer wall of the connecting rod 3, one end of the rotating pipe 19 being fixedly connected to the rotating plate 17, and the other end of the rotating pipe 19 being fixedly connected to a first gear 20; a support plate 21 fixedly connected to the outer wall of the connecting rod 3, a rotating rod 22 being rotatably connected to the side wall of the support plate 21, a second gear 23 and a third gear 24 being fixedly connected to the outer wall of the rotating rod 22, and the second gear 23 being in mesh with the first gear 20, wherein the inner wall of the working cylinder 2 is symmetrically provided with a groove 25, one of the grooves 25 being fixedly connected with a rack 26, and the rack 26 being in mesh with the third gear 24; a telescopic ring mechanism being fixedly connected between the piston plate 4 and the bottom plate 8; and the surface of the piston plate 4 being fixedly connected with a second support ring 44.

[0037] With reference to Figure 6 The surface of the piston plate 4 is provided with a third sliding groove 32, and the bottom of the rotating plate 17 is fixedly connected with a rotating ring 33 which is slidingly connected in the third sliding groove 32.

[0038] When the automobile is running on a flat road, the fifth through hole 18 is coaxial with the first through hole 7, at this time, the flow-through space of the first through hole 7 is the largest, and the damping force is the smallest; when the wheel encounters a protruding road surface and is impacted, the oil storage cylinder 1 and the working cylinder 2 move upward, the piston plate 4 moves downward in the working cylinder 2, the rotating rod 22 rotates through the design of the rack 26 and the third gear 24, the rotating rod 22 drives the second gear 23 to rotate, the second gear 23 drives the first gear 20 to rotate, the first gear 20 drives the rotating pipe 19 to rotate, and the rotating pipe 19 drives the rotating plate 17 to rotate, so that the fifth through hole 18 and the first through hole 7 are misaligned with each other, and the greater the impact on the wheel, the greater the angle of rotation of the rotating plate 17, and the smaller the flow-through channel between the fifth through hole 18 and the first through hole 7, and the greater the damping; in the entire movement process of the piston plate 4, the fifth through hole 18 and the first through hole 7 can always flow through each other, and vice versa, so that the shock absorber can automatically adjust the damping according to the road conditions, and is convenient to use.

[0039] Embodiment 2

[0040] With reference to Figure 7 The embodiment is basically the same as Embodiment 1, and further supplements a specific implementation scheme for reducing the flow of shock absorber oil from the gap of the rack 26.

[0041] The telescopic ring mechanism comprises a moving ring 29 fixedly connected to the bottom of the piston plate 4, the inner wall of the working cylinder 2 is fixedly connected with a first supporting ring 27, the lower end of the first supporting ring 27 is fixedly connected with the bottom plate 8, the surface of the first supporting ring 27 is provided with a first sliding groove 28, and the moving ring 29 is slidingly connected in the first sliding groove 28.

[0042] The inner wall of the first supporting ring 27 is symmetrically provided with a second sliding groove 30, the outer wall of the moving ring 29 is fixedly connected with a first sliding block 31 in a symmetrical mode, the first sliding block 31 corresponds to the second sliding groove 30 in a one-to-one mode, the first sliding block 31 is slidingly connected in the second sliding groove 30, and through the design of the second sliding groove 30 and the first sliding block 31, the movement range of the moving ring 29 can be limited, so that the moving ring 29 is prevented from completely separating from the first supporting ring 27 in the movement process.

[0043] Embodiment 3:

[0044] With reference to Figure 3 And Figure 5 The embodiment is basically the same as embodiment 2, and further comprises a specific implementation scheme for reducing noise generated in the damping process.

[0045] The outer wall of the connecting rod 3 is fixedly connected with a limiting seat 34, the limiting seat 34 is designed to facilitate the limitation of the movement range of the connecting rod 3 in the working cylinder 2, the surface of the limiting seat 34 is fixedly connected with a first buffer block 35, the limiting seat 34 is located above the rotating pipe 19, the surface of the first sliding block 31 is fixedly connected with a second buffer block 43 in a symmetrical mode, and the first buffer block 35 and the second buffer block 43 are designed to reduce the noise generated by the shock absorber in the damping process.

[0046] Embodiment 4:

[0047] With reference to Figure 4 And Figure 7 The embodiment is basically the same as embodiment 3, and further comprises a specific implementation scheme for rapidly reducing the shock requirement.

[0048] The inner wall of the first supporting ring 27 is fixedly connected with a fixed disc 12, the surface of the fixed disc 12 is provided with a third through hole 13, the bottom of the fixed disc 12 is fixedly connected with a moving disc 15 through a first spring 14, the outer diameter of the moving disc 15 is consistent with the inner diameter of the first supporting ring 27, the surface of the moving disc 15 is provided with a fourth through hole 16, the third through hole 13 and the fourth through hole 16 are matched with each other, and the third through hole 13, the fourth through hole 16 and the compression valve 10 correspond to each other.

[0049] When the piston plate 4 moves downward in the working cylinder 2, the shock absorber oil in the lower chamber 37 flows into the oil storage cylinder 1 in turn from the third through hole 13, the fourth through hole 16 and the compression valve 10, at this time, the shock absorber oil flows more smoothly, and the damping is smaller; when the piston plate 4 moves upward in the working cylinder 2, the shock absorber oil in the oil storage cylinder 1 flows into the lower chamber 37 in turn from the compensation valve 11, the fourth through hole 16 and the third through hole 13, at this time, the shock absorber oil has a longer flow path, and the damping is larger, which can quickly reduce the shock requirement and improve the stability.

[0050] The bottom of the fixed disc 12 is fixedly connected with a supporting rod 38, the bottom of the supporting rod 38 is provided with a fourth sliding groove 39, the surface of the moving disc 15 is fixedly connected with a sliding rod 40, and the sliding rod 40 is slidingly connected in the fourth sliding groove 39. Through the design of the supporting rod 38, the sliding rod 40 and the fourth sliding groove 39, the fixed disc 12 and the moving disc 15 are conveniently connected.

[0051] The inner wall of the supporting rod 38 is symmetrically provided with a fifth sliding groove 41, the outer wall of the sliding rod 40 is fixedly connected with a second sliding block 42 in symmetry, and the second sliding block 42 is slidingly connected in the fifth sliding groove 41. Through the design of the fifth sliding groove 41 and the second sliding block 42, the sliding rod 40 is prevented from completely separating from the supporting rod 38 during movement, and meanwhile, the moving disc 15 is prevented from rotating during movement, so that the third through hole 13 and the fourth through hole 16 are always aligned with the compression valve 10.

[0052] As Figure 8 The top of the upper chamber 36 is slidingly connected with a push rod 45, that is, the top of the working cylinder 2 is slidingly connected with the push rod 45, one end of the push rod 45 extending to the outside of the upper chamber 36 is fixedly connected with a push plate 46, the push plate 46 is sleeved on the connecting rod 3, the push plate 46 is provided with a pressure sensor 47, the pressure sensor 47 is connected with the inner wall of the top of the oil storage cylinder 1 through a second spring 48, and the limiting seat 34 is in contact with the push rod 45 when moving upward.

[0053] When the limiting seat 34 moves upward and is in contact with the push rod 45, the push plate 46 is pushed to move upward, and the second spring 48 is compressed, and the force of the second spring 48 is applied to the pressure sensor 47. Through the pressure feedback of the pressure sensor 47, the driver can know the jolt condition of the shock absorber in real time, and then adjust the best driving speed, improve the service life of the shock absorber, and also improve the service life of other parts of the vehicle.

[0054] There is a gap between the oil storage cylinder 1 and the inner wall of the top of the working cylinder 2, so that the push plate 46 can move, and the top of the inner wall of the oil storage cylinder 1 is fixedly connected with a limiting cylinder, and the bottom of the limiting cylinder is in abutment with the top of the working cylinder 2, so as to limit the upward displacement of the working cylinder 2.

[0055] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art, according to the technical solution and inventive concept of the present application, can make equivalent replacements or changes within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A flexible pressure-adjustable shock absorber for a vehicle, comprising an oil reservoir (1) and a working cylinder (2) in which shock absorber oil is provided, characterized in that, Also include: The connecting rod (3) is located in the inner cavity of the working cylinder (2), one end of the connecting rod (3) penetrates the oil storage cylinder (1) and the working cylinder (2), and the other end of the connecting rod (3) is fixedly connected with the piston plate (4); The surface of the piston plate (4) is symmetrically provided with a first through hole (7), one of the first through holes (7) is fixedly connected with the stretching valve (5), and the other first through hole (7) is fixedly connected with the flow valve (6); The bottom plate (8) is fixedly connected to the inner wall of the working cylinder (2), the surface of the bottom plate (8) is symmetrically provided with a second through hole (9), one of the second through holes (9) is fixedly connected with the compression valve (10), and the other second through hole (9) is fixedly connected with the compensation valve (11); The rotating plate (17) is rotatably connected to the surface of the piston plate (4), the surface of the rotating plate (17) is symmetrically provided with a fifth through hole (18), the fifth through hole (18) corresponds to the first through hole (7), and the inner wall of the working cylinder (2) is provided with a power mechanism, and the power mechanism is used to drive the rotating plate (17) to rotate; The stretching valve (5), the flow valve (6), the compression valve (10) and the compensation valve (11) are all one-way valves, the working cylinder (2) is provided with an upper chamber (36) and a lower chamber (37), the flow valve (6) is unidirectionally communicated to the upper chamber (36), the stretching valve (5) and the compensation valve (11) are unidirectionally communicated to the lower chamber (37), and the compression valve (10) is communicated to the inner cavity of the oil storage cylinder (1); The power mechanism comprises: The rotating tube (19) is rotatably connected to the outer wall of the connecting rod (3), one end of the rotating tube (19) is fixedly connected with the rotating plate (17), and the other end of the rotating tube (19) is fixedly connected with the first gear (20); The support plate (21) is fixedly connected to the outer wall of the connecting rod (3), the side wall of the support plate (21) is rotatably connected with the rotating rod (22), the outer wall of the rotating rod (22) is fixedly connected with the second gear (23) and the third gear (24), and the second gear (23) is meshed with the first gear (20); The inner wall of the working cylinder (2) is symmetrically provided with a groove (25), one of the grooves (25) is fixedly connected with a rack (26), the rack (26) is meshed with the third gear (24), the piston plate (4) and the bottom plate (8) are fixedly connected with an expansion and contraction ring mechanism, and the surface of the piston plate (4) is fixedly connected with a second support ring (44); The expansion and contraction ring mechanism comprises a moving ring (29) fixedly connected to the bottom of the piston plate (4), the inner wall of the working cylinder (2) is fixedly connected with a first support ring (27), the lower end of the first support ring (27) is fixedly connected with the bottom plate (8), and the surface of the first support ring (27) is provided with a first sliding groove (28), and the moving ring (29) is slidably connected in the first sliding groove (28). The inner wall of the first supporting ring (27) is fixedly connected with a fixed disc (12), the surface of the fixed disc (12) is provided with a third through hole (13), the bottom of the fixed disc (12) is fixedly connected with a moving disc (15) through a first spring (14), the outer diameter of the moving disc (15) is consistent with the inner diameter of the first supporting ring (27), the surface of the moving disc (15) is provided with a fourth through hole (16), the third through hole (13) and the fourth through hole (16) are matched with each other, and the third through hole (13), the fourth through hole (16) and the compression valve (10) correspond to each other. The bottom of the fixed disc (12) is fixedly connected with a supporting rod (38), the bottom of the supporting rod (38) is provided with a fourth sliding groove (39), and the surface of the moving disc (15) is fixedly connected with a sliding rod (40); the sliding rod (40) is slidably connected in the fourth sliding groove (39). The inner wall of the supporting rod (38) is symmetrically provided with a fifth sliding groove (41), and the outer wall of the sliding rod (40) is fixedly connected with a second sliding block (42) in pairs of symmetry; the second sliding block (42) is slidably connected in the fifth sliding groove (41).

2. A flexible pressure-adjustable shock absorber for a vehicle according to claim 1, wherein The inner wall of the first supporting ring (27) is symmetrically provided with a second sliding groove (30), and the outer wall of the moving ring (29) is fixedly connected with a first sliding block (31) in pairs of symmetry; the first sliding block (31) corresponds to the second sliding groove (30) in one-to-one manner, and the first sliding block (31) is slidably connected in the second sliding groove (30).

3. A flexible pressure-adjustable shock absorber for a vehicle according to claim 2, wherein The outer wall of the connecting rod (3) is fixedly connected with a limiting seat (34), the surface of the limiting seat (34) is fixedly connected with a first buffer block (35), the limiting seat (34) is located above the rotating pipe (19), and the surface of the first sliding block (31) is fixedly connected with a second buffer block (43) in pairs of symmetry.

4. A flexible pressure-adjustable shock absorber for a vehicle according to claim 3, wherein The top of the upper chamber (36) is slidably connected with a push rod (45), one end of the push rod (45) extending to the outside of the upper chamber (36) is fixedly connected with a push plate (46), the push plate (46) is provided with a pressure sensor (47), and the pressure sensor (47) and the inner wall of the top of the oil storage cylinder (1) are connected with a second spring (48). When the limiting seat (34) moves upward, the push rod (45) is contacted.

5. The flexible pressure-adjustable shock absorber for a vehicle according to claim 1, wherein The surface of the piston plate (4) is provided with a third sliding groove (32), the bottom of the rotating plate (17) is fixedly connected with a rotating ring (33), and the rotating ring (33) is slidably connected in the third sliding groove (32).

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