Shock absorber convenient to level

Abstract

The invention relates to the technical field of shock absorbers, and particularly discloses a shock absorber convenient to level, which comprises a cylinder body, a piston head, a piston rod, an upper supporting seat, a lower supporting seat and a damping spring, the piston head slides on the inner wall of the cylinder body, the bottom end of the piston rod is connected in the piston head, and the top end of the piston rod penetrates through the top surface of the cylinder body; the upper supporting seat is connected to the top end of the piston rod. The lower supporting seat is connected to the bottom of the cylinder. A supporting ring is arranged on the circumferential face of the cylinder body, and the cylinder body is sleeved with the damping spring. A channel is formed in the piston head, a rotating plate is arranged in the piston head, and a driving mechanism used for driving the rotating plate to rotate is installed on the piston head. An arc-shaped through hole is formed in the rotating plate, the diameter of the arc-shaped inner wall of one end of the arc-shaped through hole is equal to and concentric with the diameter of the channel, the diameter of the arc-shaped inner wall of the other end of the arc-shaped through hole is smaller than and concentric with the diameter of the channel, and the size of the arc-shaped through hole is gradually reduced from one end to the other end. The shock absorber has the effects of improving the shock absorption effect of the shock absorber and reducing vertical shaking of a vehicle.

Description

Technical Field

[0001] The invention relates to the technical field of shock absorbers, and in particular to a shock absorber which is easy to level. Background Art

[0002] Shock absorbers that are easily adjustable are often referred to as adjustable shock absorbers and are designed to provide better adaptability and performance to the vehicle, especially under different road conditions and load conditions.

[0003] The working principle of hydraulic adjustable shock absorbers mainly relies on the flow of liquid and pressure changes inside the shock absorber; hydraulic adjustable shock absorbers are usually composed of a cylinder, a piston, oil and an adjustment device. The cylinder is filled with special hydraulic oil, and the piston reciprocates in the cylinder; when the vehicle encounters bumps or obstacles during driving, the vertical movement of the wheel will cause the piston to move up and down in the cylinder, and the movement of the piston will push the hydraulic oil to flow through the channel on the piston, thereby producing a damping effect.

[0004] At present, the diameter of the channel of most pistons is fixed. When the channel diameter is large, the vehicle will be pressed down quickly when encountering bumps, but the vehicle will also rebound quickly due to the action of the spring in the adjusting device, and the spring will release potential energy, which makes the spring prone to reciprocating vibration, causing the vehicle to shake up and down greatly. If the channel of the elastic piston is small, the vehicle will not be pressed down quickly when encountering bumps, and the vehicle will be easily shaken up, which causes the existing shock absorber to have poor shock absorbing effect and the vehicle to shake up and down violently. Summary of the invention

[0005] In order to improve the shock absorbing effect of the shock absorber and reduce the up and down shaking of the vehicle, the present application provides a shock absorber that is easy to level.

[0006] The present application provides a shock absorber that is easy to level by adopting the following technical solution: The cam is connected with the piston rod through the bottom end of the piston rod and the piston rod is connected with the piston head, and the upper end of the piston rod is connected with the piston head, and the upper end of the piston rod passes through the top surface of the cylinder body; the upper support seat is connected with the top of the piston rod, and the lower support seat is connected with the bottom of the cylinder body; the circumferential surface of the cylinder body is provided with a supporting ring, and the shock absorbing spring is sleeved on the outside of the cylinder body; a channel is provided in the piston head, a rotating plate is provided in the piston head, the rotating plate is concentric with the piston head, and a driving mechanism for driving the rotating plate to rotate is installed on the piston head; an arc through hole is provided in the rotating plate, and the inner walls of both ends of the arc through hole are arc-shaped, the diameter of the arc inner wall at one end of the arc through hole is the same diameter and concentric with the diameter of the channel, the diameter of the arc inner wall at the other end of the arc through hole is smaller than the diameter of the channel and concentric with the channel, and the size of the arc through hole gradually decreases from one end to the other.

[0007] Optionally, the piston head includes an upper piston and a lower piston, and the bottom end of the piston rod passes through the upper piston and the lower piston; a protective shell is installed between the upper piston and the lower piston, the rotating plate slides on the inner wall of the protective shell, the rotating plate rotates on the inner wall of the protective shell, and the piston rod passes through the rotating plate and the protective shell; the channels of the upper piston and the lower piston pass through the protective shell.

[0008] Optionally, the driving mechanism includes a lower arc rod, a lower arc tube, a lower oil pipe, a push rod and a driving assembly; the lower arc tube is installed in the piston head, the lower arc tube is concentric with the piston rod, the lower arc rod sliding seal is arranged in the lower arc tube, one end of the lower arc rod is connected to the bottom surface of the rotating plate; the top of the lower oil pipe is connected to the end of the lower arc tube; the push rod sliding seal is in the lower oil pipe, and the bottom end of the push rod extends out of the lower oil pipe; the bottom end of the lower oil pipe extends out of the bottom surface of the piston head, and the driving assembly is installed on the bottom surface of the piston head, and the driving assembly is used to drive the push rod to slide reciprocatingly in the lower oil pipe.

[0009] Optionally, the driving assembly includes a sliding rod, a rotating ring, a connecting plate, a return spring and a pushing member; a sliding groove is provided on the bottom surface of the piston rod, a sliding head is connected to the top end of the sliding rod, the sliding head is slidably sealed in the sliding groove, the return spring is installed in the sliding groove, the top end of the return spring is pressed against the inner wall of the end of the sliding groove, and the bottom end of the return spring is pressed against the top surface of the sliding head; the rotating ring is installed at the bottom of the sliding rod, the connecting plate is connected to the circumferential surface of the rotating ring, and the connecting plate is connected to the bottom end of the push rod; the pushing member is installed on the bottom surface of the piston head, and the pushing member is used to drive the sliding rod to slide in the sliding groove.

[0010] Optionally, the pushing member includes an outer tube, an inner tube, a sealing ring and a pushing plate; the outer tube is connected to the bottom surface of the piston head, and the channels are all located inside the outer tube; the sealing ring is connected to the bottom surface of the outer tube, the inner tube is connected to the top surface of the sealing ring, and the channels are located outside the inner tube; the top surface of the inner tube is connected to a top plate, and the bottom end of the sliding rod passes through the top plate; a plurality of guide strips are connected to the inner circumference of the inner tube, the pushing plate slides in the inner tube, the push rod passes through the pushing plate, the circumference of the pushing plate is provided with guide grooves for the guide strips to slide, and the pushing plate is installed on the sliding rod; a flow channel is provided on the inner wall of the top of the inner tube, and a plurality of one-way valves are installed on the pushing plate, and the one-way valves are used to control the hydraulic oil above the pushing plate to flow to the bottom of the pushing plate.

[0011] Optionally, the one-way valve includes a valve tube and a movable plate; the valve tube is installed in the push plate, the top end of the valve tube is connected to the top surface of the push plate, and the bottom end of the valve tube is closed; the movable plate slides on the inner wall of the valve tube; an opening is provided on the inner wall of the tube body of the valve tube located below the push plate, and a retaining ring is connected to the inner wall of the top end of the valve tube.

[0012] Optionally, an upper arc tube is provided on the top surface of the rotating plate, and the upper arc tube is installed in the piston head. The upper arc tube is concentric with the piston rod, and an upper arc rod is provided in the sliding seal of the upper arc tube. One end of the upper arc rod is connected to the top surface of the rotating plate, and the extension direction of the upper arc rod is opposite to the extension direction of the lower arc rod; the end of the upper arc tube is connected to an upper oil pipe; the top of the upper oil pipe is connected to a thick oil pipe, and the thick oil pipe extends out of the top surface of the piston head; the sliding seal on the inner wall of the thick oil pipe is provided with a push plate, and the inner wall at the top end of the thick oil pipe is connected with a limiting ring.

[0013] Optionally, a rotating rod rotates inside the piston rod, the bottom end of the rotating rod extends into the sliding groove, the bottom end of the rotating rod is connected to a spline shaft, and the top surface of the sliding head is provided with a spline groove extending into the sliding rod; the peripheral surface of the sliding rod has a thread, the push plate is threadedly connected to the peripheral surface of the sliding rod, and the bottom end of the sliding rod is provided with an annular groove for the rotating ring to rotate; the top end of the piston rod is installed with a transmission mechanism for driving the rotating rod to rotate.

[0014] Optionally, the transmission mechanism includes a mounting seat, a worm wheel and a worm, the mounting seat is mounted on the outer peripheral surface of the top of the piston rod, the worm wheel is coaxially connected to the peripheral surface of the rotating rod, the worm wheel is located inside the piston rod, the worm is rotatably connected inside the mounting seat, and the worm is meshed with the worm wheel; one end of the worm extends out of the mounting seat, and a hexagonal groove is provided on the end face of the worm.

[0015] Optionally, the outer peripheral surface of the cylinder body also has threads, and the support ring is threadedly connected to the outer peripheral surface of the cylinder body.

[0016] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the vehicle is in a smooth driving state, the driving mechanism drives the rotating plate to rotate so that the end with the larger arc-shaped through hole of the rotating plate is aligned with the channel; when the lower support seat is pushed by the vehicle suspension, the lower support seat drives the cylinder body to move upward, and the cylinder body drives the support ring to move upward, and the support ring compresses the shock-absorbing spring. At the same time, the piston rod is pushed into the cylinder body relative to the cylinder body, and the piston rod drives the piston head to slide toward the bottom of the cylinder body. The hydraulic oil under the piston head quickly flows into the top of the piston head through the channel and part of the arc-shaped through hole, so that the vehicle wheel is lifted upward, and the wheel smoothly passes over the obstacle; After the vehicle passes over the obstacle, the shock absorbing spring releases elastic potential energy, pushing the support ring to move downward, and the support ring drives the cylinder body to move downward. At this time, the piston rod moves upward relative to the cylinder body, and the piston rod drives the piston head to move. At the same time, the driving mechanism drives the rotating plate to rotate back, so that the smaller end of the arc through hole is aligned with the channel. At this time, the hydraulic oil above the piston head flows slowly to the bottom of the piston head through some arc through holes and channels, so that the vehicle can smoothly return to a horizontal state under the action of the shock absorbing spring, and it is not easy for the vehicle to shake up and down, thereby improving the shock absorption effect of the shock absorber; 2. When the piston head moves downward in the cylinder body, the hydraulic oil under the piston head pushes the push plate in the inner tube. The push plate is suddenly pushed by the hydraulic oil, and the push plate moves upward quickly, and the push plate drives the sliding rod to move upward together; at this time, the movable plate in the valve tube moves upward under the thrust of the hydraulic oil and is sealed on the bottom surface of the retaining ring. The sliding rod moves upward to compress the reset spring and drive the rotating ring and the connecting plate to move upward. The connecting plate drives the push rod to slide in the lower oil pipe, and the push rod pushes the hydraulic oil, and the hydraulic oil enters the lower arc tube. The hydraulic oil pushes the lower arc rod, and the lower arc rod drives the rotating plate to rotate, and the end with the larger size of the arc through hole is adjusted to move toward the channel until the push plate passes over the flow channel, and the hydraulic oil in the cylinder body flows into the outer tube through the flow channel, and the hydraulic oil in the outer tube flows to the top of the piston head through the channel, so that the hydraulic oil flows quickly; 3. When the piston head needs to be reset, the piston head moves upward, the reset spring presses down the push plate, and at the same time, the hydraulic oil above the piston head flows into the outer tube through the channel, and the push plate passes over the flow channel. At this time, the hydraulic oil gathers above the push plate, and the hydraulic oil presses down the push plate, so that the push plate is gradually reset, and the push plate drives the sliding rod, and the sliding rod drives the push rod through the rotating ring and the connecting plate, and the push rod drives the pumping hydraulic oil to make the lower arc rod slide back, and the lower arc rod drives the rotating plate to rotate back. At this time, the smaller end of the arc through hole approaches the channel, so that the hydraulic oil above the piston head flows slowly through the channel and the arc through hole; in this process, the hydraulic oil in the inner tube pushes the movable plate in the valve tube, and the movable plate moves to the bottom of the valve tube, and the movable plate passes over the opening. At this time, the hydraulic oil above the piston head can flow to the bottom of the piston head; 4. When it is necessary to adjust the size of the arc through hole and the channel, it is only necessary to adjust the relative position of the push plate and the sliding rod; the hexagonal wrench is inserted into the hexagonal groove, and the hexagonal wrench is rotated, the hexagonal wrench drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the rotating rod to rotate, the rotating rod drives the spline shaft to rotate, and the spline shaft drives the sliding rod to rotate. Since the push plate is restricted by the guide strip, the sliding rod moves along the axial direction, and the spline shaft can be extended and retracted in the spline groove, so the relative position of the push plate and the sliding rod can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a shock absorber according to an embodiment of the present application; Figure 2 It is a schematic diagram of the structure of the piston head of an embodiment of the present application; Figure 3 is a schematic structural diagram of a piston head from another perspective of an embodiment of the present application; Figure 4 It is a schematic diagram of the explosion structure of the piston head of the embodiment of the present application; Figure 5 is a schematic diagram of an exploded structure of a piston head in another perspective of an embodiment of the present application; Figure 6 It is a schematic diagram of the structure of the rotating plate of the embodiment of the present application; Figure 7 is a schematic structural diagram of the rotating plate of the embodiment of the present application from another viewing angle; Figure 8 This is a schematic diagram of the structure of the pusher of the embodiment of the present application; Fig. 9 yes Figure 8 A schematic diagram of the enlarged structure of part A; Fig.10 is a schematic diagram of the cross-sectional structure of the piston head of an embodiment of the present application; Fig.11 It is a structural schematic diagram of the transmission mechanism of the embodiment of the present application.

[0018] Description of reference numerals: 1. Cylinder body; 11. Upper support seat; 12. Lower support seat; 13. Shock-absorbing spring; 14. Support ring; 2. Piston head; 201. Channel; 21. Upper piston; 22. Lower piston; 3. Piston rod; 31. Sliding groove; 4. Protective shell; 41. Rotating plate; 411. Arc through hole; 412. First groove; 413. First slide groove; 414. Second groove; 415. Second slide groove; 5. Driving mechanism; 51. Lower arc rod; 52. Lower arc tube; 53. Lower oil pipe; 54. Push rod; 55. Driving assembly; 551. Sliding rod; 5511. Sliding head; 5512. Spline groove; 5513. Annular groove; 552, rotating ring; 553, connecting plate; 554, return spring; 555, pushing member; 5551, outer tube; 5552, inner tube; 5553, sealing ring; 5554, pushing plate; 5555, top plate; 5556, guide strip; 5557, flow channel; 6, one-way valve; 61, valve tube; 611, opening; 612, retaining ring; 62, movable plate; 7, upper arc tube; 71, upper arc rod; 72, upper oil pipe; 73, thick oil pipe; 731, limit ring; 74, push plate; 8, rotating rod; 81, spline shaft; 9, transmission mechanism; 91, mounting seat; 92, worm wheel; 93, worm; 931, hexagonal groove. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-11 This application is described in further detail.

[0020] The present application embodiment discloses a shock absorber that is easy to level. Figure 1-11The shock absorber for easy leveling includes a cylinder body 1, a piston head 2, a piston rod 3, an upper support seat 11, a lower support seat 12 and a shock-absorbing spring 13. The piston head 2 slides on the inner wall of the cylinder body 1, the bottom end of the piston rod 3 is connected to the piston head 2, and the top end of the piston rod 3 passes through the top surface of the cylinder body 1 and is slidably sealed in the top of the cylinder body 1; the upper support seat 11 is connected to the top end of the piston rod 3, and the lower support seat 12 is connected to the bottom of the cylinder body 1; a support ring 14 is arranged on the circumference of the cylinder body 1, and the shock-absorbing spring 13 is sleeved outside the cylinder body 1, the bottom end of the shock-absorbing spring 13 is pressed against the top surface of the support ring 14, and the top end of the shock-absorbing spring 13 is pressed against the bottom surface of the upper support seat 11; three through holes are arranged evenly around the circumference of the piston head 2 in the piston head 2. Channel 201, a rotating plate 41 is arranged in the piston head 2, the rotating plate 41 is a circular plate, the rotating plate 41 is concentric with the piston head 2, and a driving mechanism 5 for driving the rotating plate 41 to rotate is installed on the piston head 2; three arc-shaped through holes 411 evenly distributed around the rotating plate 41 are arranged in the rotating plate 41, and the three arc-shaped through holes 411 correspond to the three channels 201 one by one; the inner walls of the arc-shaped through holes 411 at both ends are arc-shaped, the diameter of the arc-shaped inner wall at one end of the arc-shaped through hole 411 is the same diameter and concentric with the diameter of the channel 201, the diameter of the arc-shaped inner wall at the other end of the arc-shaped through hole 411 is smaller than the diameter of the channel 201 and concentric with the diameter, and the size of the arc-shaped through hole 411 gradually decreases from one end to the other end.

[0021] When the vehicle is in a smooth driving, the driving mechanism 5 drives the rotating plate 41 to rotate so that the larger end of the arc-shaped through hole 411 of the rotating plate 41 is aligned with the channel 201; when the lower support seat 12 is pushed by the vehicle suspension, the lower support seat 12 drives the cylinder body 1 to move upward, and the cylinder body 1 drives the support ring 14 to move upward, and the support ring 14 compresses the shock-absorbing spring 13. At the same time, the piston rod 3 is pushed into the cylinder body 1 relative to the cylinder body 1, and the piston rod 3 drives the piston head 2 to slide toward the bottom of the cylinder body 1. The hydraulic oil under the piston head 2 quickly flows into the top of the piston head 2 through the channel 201 and part of the arc-shaped through hole 411, so that the vehicle wheel is lifted upward, and the wheel smoothly passes over the obstacle. object; after the vehicle passes over the obstacle, the shock-absorbing spring 13 releases its elastic potential energy, pushing the support ring 14 to move downward, and the support ring 14 drives the cylinder body 1 to move downward. At this time, the piston rod 3 moves upward relative to the cylinder body 1, and the piston rod 3 drives the piston head 2 to move upward. At the same time, the driving mechanism 5 drives the rotating plate 41 to rotate back, so that the smaller end of the arc-shaped through hole 411 is aligned with the channel 201. At this time, the hydraulic oil above the piston head 2 flows slowly through part of the arc-shaped through hole 411 and the channel 201 to the bottom of the piston head 2, so that the vehicle can smoothly return to a horizontal state under the action of the shock-absorbing spring 13, and it is not easy for the vehicle to shake up and down, thereby improving the shock absorption effect of the shock absorber.

[0022] The piston head 2 includes an upper piston 21 and a lower piston 22, and the bottom end of the piston rod 3 passes through the upper piston 21 and the lower piston 22; a circular protective shell 4 is installed between the upper piston 21 and the lower piston 22, and a rotating plate 41 slides on the inner wall of the protective shell 4, and the rotating plate 41 rotates on the inner wall of the protective shell 4, and the piston rod 3 passes through the rotating plate 41 and the protective shell 4; the channel 201 of the upper piston 21 and the lower piston 22 passes through the protective shell 4.

[0023] When the rotating plate 41 rotates, the rotating plate 41 can rotate in the protective shell 4, avoiding direct contact between the rotating plate 41 and the piston head 2, reducing friction on the piston head 2, and by sliding smoothly in the protective shell 4, the resistance of the rotating plate 41 when rotating can be reduced.

[0024] The driving mechanism 5 includes a lower arc rod 51, a lower arc tube 52, a lower oil pipe 53, a push rod 54 and a driving assembly 55; the bottom surface of the rotating plate 41 is provided with a first groove 412 for placing the lower arc tube 52, the lower arc tube 52 is coaxial with the piston rod 3, the lower arc rod 51 is slidingly sealed in the lower arc tube 52, and one end of the lower arc rod 51 is connected to the bottom surface of the rotating plate 41; the top of the lower oil pipe 53 is connected to the end of the lower arc tube 52, and the rotating plate The bottom surface of 41 is provided with a first slide groove 413 for the top of the lower oil pipe 53 to slide; the push rod 54 is slidably sealed in the lower oil pipe 53, the bottom end of the push rod 54 extends out of the lower oil pipe 53, and there is hydraulic oil in the lower oil pipe 53; the bottom end of the lower oil pipe 53 passes through the protective shell 4 and extends out of the bottom surface of the piston head 2, and the lower arc tube 52 is installed on the inner wall of the protective shell 4; the driving component 55 is installed on the bottom surface of the piston head 2, and the driving component 55 is used to drive the push rod 54 to slide back and forth in the lower oil pipe 53.

[0025] The driving assembly 55 includes a sliding rod 551, a rotating ring 552, a connecting plate 553, a reset spring 554 and a pushing member 555; a sliding groove 31 is arranged on the bottom surface of the piston rod 3, a sliding head 5511 is connected to the top end of the sliding rod 551, the sliding head 5511 is slidably sealed in the sliding groove 31, a reset spring 554 is installed in the sliding groove 31, the top end of the reset spring 554 is pressed against the inner wall of the end of the sliding groove 31, and the bottom end of the reset spring 554 is pressed against the top surface of the sliding head 5511; the rotating ring 552 is installed at the bottom of the sliding rod 551, the connecting plate 553 is connected to the circumference of the rotating ring 552, and the connecting plate 553 is connected to the bottom end of the push rod 54; the pushing member 555 is installed on the bottom surface of the piston head 2, and the pushing member 555 is used to drive the sliding rod 551 to slide in the sliding groove 31.

[0026] The pusher 555 includes an outer tube 5551, an inner tube 5552, a sealing ring 5553 and a push plate 5554; the outer tube 5551 is connected to the bottom surface of the piston head 2, the outer peripheral surface of the outer tube 5551 is attached to the inner wall of the cylinder body 1, and the three channels 201 are all located in the outer tube 5551; the sealing ring 5553 is connected to the bottom surface of the outer tube 5551, the inner tube 5552 is connected to the top surface of the sealing ring 5553, the three channels 201 are located outside the inner tube 5552, and the inner tube 5552 and the outer tube 5551 are coaxial; the top surface of the inner tube 5552 is connected to the top plate 5555, and the bottom end of the sliding rod 551 passes through the top plate 5555; The inner circumference of the inner tube 5552 is connected to a plurality of guide strips 5556 evenly distributed around the circumference of the inner tube 5552, the push plate 5554 slides in the inner tube 5552, the push rod 54 passes through the push plate 5554, the circumference of the push plate 5554 is provided with guide grooves for the guide strips 5556 to slide, and the push plate 5554 is installed on the sliding rod 551; the inner wall at the top of the inner tube 5552 is provided with a plurality of flow channels 5557 evenly distributed around the circumference of the inner tube 5552, and a plurality of one-way valves 6 are installed on the push plate 5554, and the one-way valve 6 is used to control the hydraulic oil above the push plate 5554 to flow to the bottom of the push plate 5554.

[0027] There are three one-way valves 6, which are evenly distributed around the circumference of the push plate 5554; the one-way valve 6 includes a valve tube 61 and a movable plate 62; the valve tube 61 is installed in the push plate 5554, the top end of the valve tube 61 is connected to the top surface of the push plate 5554, and the bottom end of the valve tube 61 is closed; the movable plate 62 slides on the inner wall of the valve tube 61; the inner wall of the valve tube 61 located below the push plate 5554 is provided with a plurality of openings 611, and the inner wall at the top end of the valve tube 61 is connected with a retaining ring 612.

[0028] When the piston head 2 moves downward in the cylinder body 1, the hydraulic oil under the piston head 2 pushes the push plate 5554 in the inner tube 5552. The push plate 5554 is suddenly pushed by the hydraulic oil, and the push plate 5554 moves upward quickly, and the push plate 5554 drives the sliding rod 551 to move upward together; at this time, the movable plate 62 in the valve tube 61 moves upward under the thrust of the hydraulic oil and is sealed on the bottom surface of the retaining ring 612. The sliding rod 551 moves upward to compress the reset spring 554 and drive the rotating ring 552 and the connecting plate 553 to move upward, and the connecting plate 553 drives the push rod 54 to slide in the lower oil pipe 53, and the push rod 54 pushes the hydraulic oil, and the hydraulic oil enters the lower arc tube 52. The hydraulic oil pushes the lower arc rod 51, and the lower arc rod 51 drives the rotating plate 41 to rotate, and the larger end of the arc through hole 411 is adjusted to move toward the channel 201 until the push plate 5554 passes over the flow channel 5557, and the hydraulic oil in the cylinder body 1 flows to the outer tube 5551 through the flow channel 5557, and the hydraulic oil in the outer tube 5551 flows to the top of the piston head 2 through the channel 201, so that the hydraulic oil flows quickly.

[0029] When the piston head 2 needs to be reset, the piston head 2 moves upward, and the reset spring 554 presses down the push plate 5554. At the same time, the hydraulic oil above the piston head 2 flows into the outer tube 5551 through the channel 201, and the push plate 5554 passes over the flow channel 5557. At this time, the hydraulic oil gathers above the push plate 5554, and the hydraulic oil presses down the push plate 5554, so that the push plate 5554 gradually resets, and the push plate 5554 drives the sliding rod 551, and the sliding rod 551 drives the push rod 54 through the rotating ring 552 and the connecting plate 553, and the push rod 54 drives The hydraulic oil is pumped to make the lower arc rod 51 slide back, and the lower arc rod 51 drives the rotating plate 41 to rotate back. At this time, the smaller end of the arc through hole 411 approaches the channel 201, so that the hydraulic oil above the piston head 2 flows slowly through the channel 201 and the arc through hole 411; in this process, the hydraulic oil in the inner tube 5552 pushes the movable plate 62 in the valve tube 61, and the movable plate 62 moves to the bottom of the valve tube 61, and the movable plate 62 passes over the opening 611. At this time, the hydraulic oil above the piston head 2 can flow to the bottom of the piston head 2.

[0030] An upper arc tube 7 is provided on the top surface of the rotating plate 41, and a second groove 414 for placing the upper arc tube 7 is provided on the top surface of the rotating plate 41. The upper arc tube 7 is concentric with the piston rod 3, and an upper arc rod 71 is provided in the upper arc tube 7 as a sliding seal. One end of the upper arc rod 71 is connected to the top surface of the rotating plate 41, and the extension direction of the upper arc rod 71 is opposite to the extension direction of the lower arc rod 51; the end of the upper arc tube 7 is connected to the upper oil pipe 72, and the top surface of the rotating plate 41 is provided with a second slide groove 415 for the bottom of the upper oil pipe 72 to slide; the top of the upper oil pipe 72 is connected to the thick oil pipe 73, and the thick oil pipe 73 passes through the protective shell 4 and extends out of the top surface of the piston head 2; the inner wall sliding seal of the thick oil pipe 73 is provided with a push plate 74, and the inner wall of the top end of the thick oil pipe 73 is connected to a limiting ring 731.

[0031] When the lower arc rod 51 drives the rotating plate 41 to rotate, the rotating plate 41 pushes the upper arc rod 71 into the upper arc tube 7, and the upper arc rod 71 pushes the hydraulic oil in the upper arc tube 7 through the upper oil pipe 72 to enter the thick oil pipe 73, and the hydraulic oil in the thick oil pipe 73 pushes the push plate 74 to rise; when the piston head 2 moves upward, the lower arc rod 51 drives the lower arc rod 51 to retract through the negative pressure in the lower arc tube 52. At this time, the hydraulic oil above the piston head 2 presses down the push plate 74, and the push plate 74 presses down the hydraulic oil in the thick oil pipe 73, and the hydraulic oil enters the upper arc tube 7, and the hydraulic oil pushes the upper arc rod 71, and the upper arc rod 71 drives the rotating plate 41 to rotate back, and the upper arc rod 71 assists the lower arc rod 51 to rotate the rotating plate 41 back.

[0032] A rotating rod 8 rotates inside the piston rod 3, and the bottom end of the rotating rod 8 extends into the sliding groove 31. The bottom end of the rotating rod 8 is connected to a spline shaft 81, and the top surface of the sliding head 5511 is provided with a spline groove 5512 extending into the sliding rod 551; the peripheral surface of the sliding rod 551 has a thread, and the pushing plate 5554 is threadedly connected to the peripheral surface of the sliding rod 551, and the bottom end of the sliding rod 551 is provided with an annular groove 5513 for the rotating ring 552 to rotate; a transmission mechanism 9 for driving the rotating rod 8 to rotate is installed at the top end of the piston rod 3.

[0033] The transmission mechanism 9 includes a mounting seat 91, a worm wheel 92 and a worm 93. The mounting seat 91 is mounted on the outer peripheral surface of the top of the piston rod 3. The worm wheel 92 is coaxially connected to the peripheral surface of the rotating rod 8. The worm wheel 92 is located in the piston rod 3. The worm 93 is rotatably connected in the mounting seat 91, and the worm 93 is meshed with the worm wheel 92. One end of the worm 93 extends out of the mounting seat 91, and a hexagonal groove 931 is provided on the end face of the worm 93.

[0034] When it is necessary to adjust the size of the arc-shaped through hole 411 to be aligned with the channel 201, it is only necessary to adjust the relative positions of the push plate 5554 and the sliding rod 551; the hexagonal wrench is inserted into the hexagonal groove 931, and the hexagonal wrench is rotated, the hexagonal wrench drives the worm 93 to rotate, the worm 93 drives the worm wheel 92 to rotate, the worm wheel 92 drives the rotating rod 8 to rotate, the rotating rod 8 drives the spline shaft 81 to rotate, and the spline shaft 81 drives the sliding rod 551 to rotate. Since the push plate is restricted by the guide strip 5556, the sliding rod 551 moves along the axial direction, and the spline shaft 81 can be retracted and retracted in the spline groove 5512, so that the relative positions of the push plate 5554 and the sliding rod 551 can be adjusted.

[0035] The outer circumference of the cylinder body 1 also has threads, and the support ring 14 is threadedly connected to the outer circumference of the cylinder body 1; by rotating the support ring 14, the degree of compression of the support ring 14 on the shock-absorbing spring 13 can be adjusted.

[0036] The implementation principle of a shock absorber that is easy to level in the embodiment of the present application is as follows: when the vehicle is in a smooth driving state, the driving mechanism 5 drives the rotating plate 41 to rotate so that the larger end of the arc-shaped through hole 411 of the rotating plate 41 is aligned with the channel 201; when the lower support seat 12 is pushed by the vehicle suspension, the lower support seat 12 drives the cylinder body 1 to move upward, and the cylinder body 1 drives the support ring 14 to move upward, and the support ring 14 compresses the shock-absorbing spring 13. At the same time, the piston rod 3 is pushed into the cylinder body 1 relative to the cylinder body 1, and the piston rod 3 drives the piston head 2 to slide toward the bottom of the cylinder body 1, and the hydraulic oil under the piston head 2 quickly flows into the top of the piston head 2 through the channel 201 and part of the arc-shaped through hole 411, so that the vehicle wheel moves upward. The wheel passes over the obstacle smoothly when the vehicle is lifted up. After the vehicle passes over the obstacle, the shock-absorbing spring 13 releases its elastic potential energy to push the support ring 14 downward, and the support ring 14 drives the cylinder body 1 to move downward. At this time, the piston rod 3 moves upward relative to the cylinder body 1, and the piston rod 3 drives the piston head 2 to move upward. At the same time, the driving mechanism 5 drives the rotating plate 41 to rotate back so that the smaller end of the arc-shaped through hole 411 is aligned with the channel 201. At this time, the hydraulic oil above the piston head 2 flows slowly through part of the arc-shaped through hole 411 and the channel 201 to the bottom of the piston head 2, so that the vehicle can smoothly return to a horizontal state under the action of the shock-absorbing spring 13, and it is not easy for the vehicle to shake up and down, thereby improving the shock absorption effect of the shock absorber.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A shock absorber that is easy to level, characterized in that: The invention comprises a cylinder body (1), a piston head (2), a piston rod (3), an upper support seat (11), a lower support seat (12) and a shock absorbing spring (13); the piston head (2) slides on the inner wall of the cylinder body (1); the bottom end of the piston rod (3) is connected to the inside of the piston head (2); the top end of the piston rod (3) passes through the top surface of the cylinder body (1); the upper support seat (11) is connected to the top end of the piston rod (3); the lower support seat (12) is connected to the bottom of the cylinder body (1); a support ring (14) is arranged on the circumference of the cylinder body (1); the shock absorbing spring (13) is sleeved on the outside of the cylinder body (1); a channel (201) is arranged in the piston head (2); A rotating plate (41) is arranged inside the piston head (2), the rotating plate (41) and the piston head (2) are cocentric, and a driving mechanism (5) for driving the rotating plate (41) to rotate is installed on the piston head (2); an arc-shaped through hole (411) is arranged inside the rotating plate (41), the inner walls at both ends of the arc-shaped through hole (411) are both arc-shaped, the diameter of the arc-shaped inner wall at one end of the arc-shaped through hole (411) is the same as the diameter of the channel (201) and is cocentric, the diameter of the arc-shaped inner wall at the other end of the arc-shaped through hole (411) is smaller than the diameter of the channel (201) and is cocentric, and the size of the arc-shaped through hole (411) gradually decreases from one end to the other end.

2. A shock absorber that is easy to level according to claim 1, characterized in that: The piston head (2) comprises an upper piston (21) and a lower piston (22), and the bottom end of the piston rod (3) passes through the upper piston (21) and the lower piston (22); a protective shell (4) is installed between the upper piston (21) and the lower piston (22), the rotating plate (41) slides on the inner wall of the protective shell (4), the rotating plate (41) rotates on the inner wall of the protective shell (4), and the piston rod (3) passes through the rotating plate (41) and the protective shell (4); the channels (201) of the upper piston (21) and the lower piston (22) pass through the protective shell (4).

3. The shock absorber that is easy to level according to claim 1, characterized in that: The driving mechanism (5) comprises a lower arc-shaped rod (51), a lower arc-shaped tube (52), a lower oil tube (53), a push rod (54) and a driving assembly (55); the lower arc-shaped tube (52) is installed in the piston head (2), the lower arc-shaped tube (52) and the piston rod (3) are cocentric, the lower arc-shaped rod (51) is slidingly sealed in the lower arc-shaped tube (52), and one end of the lower arc-shaped rod (51) is connected to the bottom surface of the rotating plate (41); The top of the lower oil pipe (53) is connected to the end of the lower arc-shaped pipe (52); the push rod (54) is slidably sealed in the lower oil pipe (53), and the bottom end of the push rod (54) extends out of the lower oil pipe (53); the bottom end of the lower oil pipe (53) extends out of the bottom surface of the piston head (2), and the drive component (55) is installed on the bottom surface of the piston head (2), and the drive component (55) is used to drive the push rod (54) to slide back and forth in the lower oil pipe (53).

4. A shock absorber that is easy to level according to claim 3, characterized in that: The driving assembly (55) comprises a sliding rod (551), a rotating ring (552), a connecting plate (553), a return spring (554) and a pushing member (555); a sliding groove (31) is arranged on the bottom surface of the piston rod (3); a sliding head (5511) is connected to the top end of the sliding rod (551); the sliding head (5511) is slidably sealed in the sliding groove (31); the return spring (554) is installed in the sliding groove (31); the top end of the return spring (554) is pressed against the sliding groove The inner wall of the end portion (31), the bottom end of the return spring (554) is pressed against the top surface of the sliding head (5511); the rotating ring (552) is installed at the bottom of the sliding rod (551), the connecting plate (553) is connected to the circumference of the rotating ring (552), and the connecting plate (553) is connected to the bottom end of the push rod (54); the pushing member (555) is installed on the bottom surface of the piston head (2), and the pushing member (555) is used to drive the sliding rod (551) to slide in the sliding groove (31).

5. A shock absorber that is easy to level according to claim 4, characterized in that: The pushing member (555) comprises an outer tube (5551), an inner tube (5552), a sealing ring (5553) and a pushing plate (5554); the outer tube (5551) is connected to the bottom surface of the piston head (2), and the channels (201) are all located inside the outer tube (5551); the sealing ring (5553) is connected to the bottom surface of the outer tube (5551), the inner tube (5552) is connected to the top surface of the sealing ring (5553), and the channels (201) are located outside the inner tube (5552); the top surface of the inner tube (5552) is connected to a top plate (5555), and the bottom end of the sliding rod (551) passes through the top plate (5555); The inner circumference of the tube (5552) is connected to a plurality of guide strips (5556), the push plate (5554) slides in the inner tube (5552), the push rod (54) passes through the push plate (5554), the circumference of the push plate (5554) is provided with guide grooves for the guide strips (5556) to slide, and the push plate (5554) is installed on the sliding rod (551); the inner wall at the top of the inner tube (5552) is provided with a flow channel (5557), and a plurality of one-way valves (6) are installed on the push plate (5554), and the one-way valve (6) is used to control the hydraulic oil above the push plate (5554) to flow to the bottom of the push plate (5554).

6. A shock absorber that is easy to level according to claim 5, characterized in that: The one-way valve (6) comprises a valve tube (61) and a movable plate (62); the valve tube (61) is installed in the pushing plate (5554), the top end of the valve tube (61) is connected to the top surface of the pushing plate (5554), and the bottom end of the valve tube (61) is closed; the movable plate (62) slides on the inner wall of the valve tube (61); an opening (611) is provided on the inner wall of the tube body of the valve tube (61) below the pushing plate (5554), and a retaining ring (612) is connected to the inner wall of the top end of the valve tube (61).

7. The shock absorber that is easy to level according to claim 3, characterized in that: The top surface of the rotating plate (41) is provided with an upper arc tube (7), the upper arc tube (7) is installed in the piston head (2), the upper arc tube (7) is cocentric with the piston rod (3), and an upper arc rod (71) is provided in the upper arc tube (7) as a sliding seal, one end of the upper arc rod (71) is connected to the top surface of the rotating plate (41), and the extension direction of the upper arc rod (71) is opposite to the extension direction of the lower arc rod (51); the end of the upper arc tube (7) is connected to the upper oil pipe (72); the top of the upper oil pipe (72) is connected to the thick oil pipe (73), and the thick oil pipe (73) extends out of the top surface of the piston head (2); the inner wall of the thick oil pipe (73) is provided with a push plate (74) as a sliding seal, and the inner wall of the top end of the thick oil pipe (73) is connected to a limiting ring (731).

8. The shock absorber that is easy to level according to claim 5, characterized in that: A rotating rod (8) rotates inside the piston rod (3), the bottom end of the rotating rod (8) extends into the sliding groove (31), the bottom end of the rotating rod (8) is connected to a spline shaft (81), and the top surface of the sliding head (5511) is provided with a spline groove (5512) extending into the sliding rod (551); the peripheral surface of the sliding rod (551) has a thread, the pushing plate (5554) is threadedly connected to the peripheral surface of the sliding rod (551), and the bottom end of the sliding rod (551) is provided with an annular groove (5513) for the rotating ring (552) to rotate; and a transmission mechanism (9) for driving the rotating rod (8) to rotate is installed at the top end of the piston rod (3).

9. The shock absorber for easy leveling according to claim 8, characterized in that: The transmission mechanism (9) comprises a mounting seat (91), a worm wheel (92) and a worm (93); the mounting seat (91) is mounted on the outer peripheral surface of the top of the piston rod (3); the worm wheel (92) is coaxially connected to the peripheral surface of the rotating rod (8); the worm wheel (92) is located inside the piston rod (3); the worm (93) is rotatably connected inside the mounting seat (91); the worm (93) is meshed with the worm wheel (92); one end of the worm (93) extends out of the mounting seat (91); and a hexagonal groove (931) is provided on the end surface of the worm (93).

10. The shock absorber that is easy to level according to claim 1, characterized in that: The outer peripheral surface of the cylinder body (1) also has threads, and the support ring (14) is threadedly connected to the outer peripheral surface of the cylinder body (1).

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