CN215370735U - Hydraulic rear shock absorber for motorcycle - Google Patents
Hydraulic rear shock absorber for motorcycle Download PDFInfo
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- CN215370735U CN215370735U CN202121708660.7U CN202121708660U CN215370735U CN 215370735 U CN215370735 U CN 215370735U CN 202121708660 U CN202121708660 U CN 202121708660U CN 215370735 U CN215370735 U CN 215370735U
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Abstract
The utility model discloses a hydraulic rear shock absorber of a motorcycle, which comprises an upper joint, a lower joint and an oil cylinder, wherein the oil cylinder is arranged on the upper joint, a piston rod of the oil cylinder is connected with the lower joint, a spring is arranged between the end part of the piston rod and the upper end of the oil cylinder, a piston is arranged in the oil cylinder, a guide seat is hermetically connected on a port of the oil cylinder, a buffer ring is arranged on the end surface of the guide seat facing the piston, the section of the buffer ring is in an inverted T shape, a buffer pad is arranged on the end surface of the piston facing the guide seat, the buffer pad is in a circular ring shape, the edge of the upward end surface of the buffer pad is in a conical shape, a rubber block is also sleeved on the piston rod, the peripheral wall of the rubber block is provided with an arc-shaped elastic groove, the upper joint is connected with an air bottle through an oil pipe, the air bottle is communicated with the inner cavity of the oil cylinder, a valve port is arranged in the hollow cavity of the piston rod, a circulation hole communicated with the valve port is arranged at the position of the piston rod close to the piston, the opening degree of the valve port can be adjusted. Thus, the technical effect of reasonable and reliable structure is realized.
Description
Technical Field
The utility model relates to a hydraulic rear shock absorber of a motorcycle.
Background
The hydraulic rear shock absorber of the motorcycle is widely applied to rear shock absorption of motorcycles or electric vehicles, can effectively improve comfort when riding and driving the motorcycles, particularly, on pedal motorcycles, particularly, space limitation of a backseat and tires is avoided, so that the rear shock absorber is too short in stroke, and due to unreasonable structure, when bearing vibration impact, the hydraulic rear shock absorber causes poor buffering effect, so that a piston in an oil cylinder is extremely easy to collide, the riding comfort is influenced, and even the shock absorber can be damaged.
Disclosure of Invention
In order to solve the problems, the utility model aims to provide a hydraulic rear shock absorber of a motorcycle, which is reasonable and reliable in structure.
In order to achieve the purpose, the utility model provides the following technical scheme: a hydraulic rear shock absorber of a motorcycle comprises an upper joint, a lower joint and an oil cylinder, wherein the upper joint is provided with the oil cylinder, a piston rod of the oil cylinder is connected with the lower joint, a spring is arranged between the end part of the piston rod and the upper end of the oil cylinder, a piston is arranged in the oil cylinder, a guide seat is hermetically connected with a port of the oil cylinder, the piston rod penetrates through a guide hole of the guide seat, a buffer ring is arranged on the end surface of the guide seat facing the piston, the section of the buffer ring is in an inverted T shape, a buffer pad is arranged on the end surface of the piston facing the guide seat, the buffer pad is in a circular ring shape, the edge of the upward end surface of the buffer pad is in a conical shape, the piston rod is further sleeved with a rubber block, the peripheral wall of the rubber block is provided with an arc-shaped elastic groove, the upper joint is connected with an air cylinder through an oil pipe, the air cylinder is communicated with the inner cavity of the oil cylinder, a valve port is arranged in the hollow cavity of the piston rod, the piston rod is provided with a circulation hole communicated with the valve port at a position close to the piston, and the opening degree of the valve port can be adjusted.
The end part of the inner hole of the piston rod is provided with an insertion pipe, the inward port of the insertion pipe is the valve port, the valve port is close to the circulation hole, a valve rod is arranged corresponding to the valve port, a cylindrical movable seat is arranged at the lower bottom of the valve rod, a sealing ring is arranged on the movable seat and moves along the inner hole of the piston rod, the end part of the valve rod is arranged in a conical shape, a reset spring is arranged between the valve rod and the insertion pipe, a transmission rod is further arranged in the inner hole of the piston rod and is abutted against the lower end face of the movable seat of the valve rod, a screw rod is screwed in the lower joint, a conical transmission face is arranged on the peripheral wall of the screw rod, the end face of the transmission rod is abutted against the transmission face, and a knob is arranged at the end part of the screw rod.
The gas cylinder is internally provided with a floating piston which divides an inner cavity of the oil outlet cylinder into an oil pressure cavity and an air pressure cavity.
The piston rod penetrates through a buffer gasket arranged between the end part of the piston and the end surface of the piston, and the bottom of the oil cylinder is provided with a yielding groove corresponding to the end part of the piston rod penetrating through the piston.
According to the structure, when the lower joint and the upper joint bear vibration, the piston rod is enabled to move along the axial stroke for buffering, the connecting part of the piston rod and the piston is buffered through the contact between the buffer ring and the buffer pad, so that hard contact is avoided, when the piston rod retracts excessively, the hard contact between the lower joint and the guide seat is avoided through the rubber block, and meanwhile, the buffer is more stable and smooth after the piston rod is compressed through the adjustment of the opening degree of the valve port, so that the technical effect of reasonable and reliable structure is realized.
The utility model is further described with reference to the following figures and detailed description.
Drawings
FIG. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is a cut-away view of an embodiment of the present invention;
fig. 3 is an enlarged view of a in fig. 2.
Detailed Description
The following examples are given to illustrate the present invention and should not be construed as limiting the scope of the present invention.
As shown in fig. 1 and fig. 2, the embodiment discloses a hydraulic rear shock absorber for a motorcycle, which comprises an upper joint 1, a lower joint 2 and an oil cylinder 3, wherein the oil cylinder 3 is installed on the upper joint 1, a piston rod 6 of the oil cylinder 3 is connected with the lower joint 2, a spring 4 is arranged between the end of the piston rod 6 and the upper end of the oil cylinder 3, a piston 5 is arranged in the oil cylinder 3, a guide seat 31 is hermetically connected to a port of the oil cylinder 3, the piston rod 6 passes through a guide hole of the guide seat 31, a buffer ring 7 is arranged on the end surface of the guide seat 31 facing the piston 5, the section of the buffer ring 7 is in an inverted "T" shape, a buffer pad 8 is arranged on the end surface of the piston 5 facing the guide seat 31, the buffer pad 8 is in a circular ring shape, the upward end surface edge of the buffer pad is in a conical shape, a rubber block 9 is further sleeved on the piston rod 6, an arc-shaped elastic groove 91 is arranged on the peripheral wall of the rubber block 9 to facilitate elastic compression, the upper joint 1 is connected with an air bottle 10 through an oil pipe, the air bottle 10 is communicated with the inner cavity of the oil cylinder 3, a valve port 61 is arranged in the hollow of the piston rod 6, a circulation hole 62 communicated with the valve port 61 is arranged at the position, close to the piston 5, of the piston rod 6, and the opening degree of the valve port 61 can be adjusted.
Specifically, as shown in fig. 3, an insertion tube 20 is disposed at an end of an inner hole of a piston rod 6, an inward port of the insertion tube 20 is a valve port 61, the valve port 61 is close to a flow hole 62, a valve rod 30 is disposed corresponding to the valve port, a cylindrical movable seat 301 is disposed at a lower bottom of the valve rod 30, a seal ring is disposed on the movable seat 301 and moves along the inner hole of the piston rod 6, the end of the valve rod 30 is disposed in a conical shape, a return spring 40 is disposed between the valve rod 30 and the insertion tube 20, a transmission rod 50 is further disposed in the inner hole of the piston rod 6, the transmission rod 50 abuts against a lower end surface of the movable seat 301 of the valve rod 30, a screw rod 60 is screwed into a lower joint 2, a conical transmission surface 601 is disposed on a peripheral wall of the screw rod 60, an end surface of the transmission rod 50 abuts against the transmission surface 601 due to an elastic force of the return spring, and a knob 80 is mounted at the end of the screw rod 60. Through the structure, the knob 80 is rotated to drive the transmission rod 50 to stretch back and forth so as to control the opening degree between the end part of the valve rod 30 and the valve port 61 at the port of the insertion pipe 20, so that the piston rod 6 is ensured to return more stably and smoothly, and the use comfort is improved.
A floating piston 101 is arranged in the gas cylinder 10, the inner cavity of the oil outlet cylinder 3 is divided into an oil pressure cavity 102 and a gas pressure cavity 103 by the floating piston 101, and nitrogen is filled into the gas pressure cavity 103, so that the oil quantity can be adjusted, and the effect of absorbing shock can be achieved. Therefore, by this structure, when the compression piston 5 is vibrated, the oil pressure is increased to push the floating piston 101 to press the pneumatic chamber 103, so that the shock absorption effect can be improved.
A buffer gasket 70 is arranged between the end part of the piston rod 6 penetrating through the piston 5 and the end surface of the piston 5, and a yielding groove 31 is arranged at the bottom of the oil cylinder 3, wherein the yielding groove 31 corresponds to the end part of the piston rod 6 penetrating through the piston 5. When making piston rod 6 touch down through this structure, can cushion through buffering packing ring 70, avoid the piston rod 6 tip to receive the collision damage, can effectively reduce the noise moreover, prolong the life of bumper shock absorber.
Adopt above-mentioned technical scheme, lower clutch 2 and top connection 1 are when bearing the vibration, make piston rod 6 cushion along the axial stroke activity, piston rod 6 cushions through the touching between buffer ring 7 and the cushion 8 with the position of being connected of piston 5, avoid hard contact, when piston rod 6 contracts excessively, accessible rubber block 9, avoid the hard contact between lower clutch 2 and the guide holder 31, simultaneously through the regulation of valve port 61 aperture, make the buffering more steady smooth and easy after the compression of piston rod 6, so just realized the technological effect rational in infrastructure and reliable.
Claims (4)
1. The utility model provides a motorcycle hydraulic rear shock absorber, includes top connection, lower clutch and hydro-cylinder, install the hydro-cylinder on the top connection, the piston rod and the lower clutch of this hydro-cylinder are connected, dispose the spring between the tip of piston rod and hydro-cylinder upper end, be equipped with piston, its characterized in that in the hydro-cylinder: the port of the oil cylinder is hermetically connected with a guide seat, a piston rod penetrates through a guide hole of the guide seat, a buffer ring is arranged on the end face of the guide seat facing the piston, the section of the buffer ring is in an inverted T shape, a buffer pad is arranged on the end face of the piston facing the guide seat, the buffer pad is in a ring shape, the edge of the upward end face of the buffer pad is in a conical shape, a rubber block is further sleeved on the piston rod, an arc-shaped elastic groove is formed in the peripheral wall of the rubber block, an air bottle is connected to the upper joint through an oil pipe and is communicated with the inner cavity of the oil cylinder, a valve port is arranged in the hollow cavity of the piston rod, a circulation hole communicated with the valve port is formed in the position, close to the piston, and the opening degree of the valve port can be adjusted.
2. A motorcycle hydraulic rear shock absorber according to claim 1, wherein: the end part of the inner hole of the piston rod is provided with an insertion pipe, the inward port of the insertion pipe is the valve port, the valve port is close to the circulation hole, a valve rod is arranged corresponding to the valve port, a cylindrical movable seat is arranged at the lower bottom of the valve rod, a sealing ring is arranged on the movable seat and moves along the inner hole of the piston rod, the end part of the valve rod is arranged in a conical shape, a reset spring is arranged between the valve rod and the insertion pipe, a transmission rod is further arranged in the inner hole of the piston rod and is abutted against the lower end face of the movable seat of the valve rod, a screw rod is screwed in the lower joint, a conical transmission face is arranged on the peripheral wall of the screw rod, the end face of the transmission rod is abutted against the transmission face, and a knob is arranged at the end part of the screw rod.
3. A motorcycle hydraulic rear shock absorber according to claim 1, wherein: the gas cylinder is internally provided with a floating piston which divides an inner cavity of the oil outlet cylinder into an oil pressure cavity and an air pressure cavity.
4. A motorcycle hydraulic rear shock absorber according to claim 1, wherein: the piston rod penetrates through a buffer gasket arranged between the end part of the piston and the end surface of the piston, and the bottom of the oil cylinder is provided with a yielding groove corresponding to the end part of the piston rod penetrating through the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121708660.7U CN215370735U (en) | 2021-07-27 | 2021-07-27 | Hydraulic rear shock absorber for motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121708660.7U CN215370735U (en) | 2021-07-27 | 2021-07-27 | Hydraulic rear shock absorber for motorcycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215370735U true CN215370735U (en) | 2021-12-31 |
Family
ID=79611905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121708660.7U Active CN215370735U (en) | 2021-07-27 | 2021-07-27 | Hydraulic rear shock absorber for motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215370735U (en) |
-
2021
- 2021-07-27 CN CN202121708660.7U patent/CN215370735U/en active Active
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