Rear shock absorber assembly of motorcycle

Abstract

The utility model discloses a rear shock absorber assembly of a motorcycle. The rear shock absorber assembly comprises a hydraulic outer cylinder, a hydraulic seat and a spring seat, wherein the hydraulic seat is matched with the hydraulic outer cylinder; a first hydraulic chamber is formed between the hydraulic outer cylinder and the hydraulic base, and a hydraulic oil main cylinder adjusting mechanism and a hydraulic oil auxiliary cylinder adjusting mechanism which are used for driving the hydraulic base to conduct adjustment are arranged outside the first hydraulic chamber in parallel. According to the rear shock absorber assembly of the technical scheme, through the hydraulic oil main cylinder adjusting mechanism and the hydraulic oil auxiliary cylinder adjusting mechanism which are arranged in parallel, when the height of a seat needs to be adjusted normally, height adjustment can be achieved through the hydraulic oil main cylinder adjusting mechanism, and when the height of the seat needs to be adjusted rapidly, height adjustment can be achieved through the hydraulic oil auxiliary cylinder adjusting mechanism. Rapid adjustment can be achieved through the hydraulic oil auxiliary cylinder adjusting mechanism, and the using requirements of an operator under different conditions are met.

Description

Technical Field

[0001] The utility model relates to the field of motorcycle parts, in particular to a motorcycle rear shock absorber assembly. Background Art

[0002] Motorcycle shock absorbers are widely used in motorcycles. They support the vehicle body and transmit traction, which is closely related to the safety of vehicle driving. At the same time, they are performance parts. The quality of shock absorption will also affect the comfort of the driver and passengers.

[0003] Conventional shock absorbers on existing two-wheeled motorcycles require manual adjustment of the spring adjustment nut or spring preload, making adjustment cumbersome and difficult. While electric height adjustment mechanisms exist for lowering and raising the vehicle, these motors require a long descent time. Rapid descents, however, place significant load on the motor, making them difficult to achieve. This significantly increases the cost and structural complexity of the entire system, hindering rapid seat height adjustment and significantly diminishing the operator experience.

[0004] Therefore, in order to solve the above problems, a motorcycle rear shock absorber assembly is needed to solve the above problems. Utility Model Content

[0005] In view of this, the rear shock absorber assembly of the present technical solution, through the hydraulic oil main cylinder adjustment mechanism and the hydraulic oil auxiliary cylinder adjustment mechanism arranged in parallel, when the seat height needs to be adjusted to normal height, the height adjustment can be achieved through the hydraulic oil main cylinder adjustment mechanism. When the seat height needs to be adjusted quickly, the hydraulic oil auxiliary cylinder adjustment mechanism can be used to achieve quick adjustment, thereby meeting the operator's usage needs in different situations.

[0006] A motorcycle rear shock absorber assembly includes a hydraulic outer cylinder, a hydraulic seat mounted in conjunction with the hydraulic outer cylinder, and a spring seat arranged at the end of the hydraulic seat for mounting thereon; a first hydraulic chamber is formed between the hydraulic outer cylinder and the hydraulic seat, and a hydraulic oil main cylinder adjustment mechanism and a hydraulic oil auxiliary cylinder adjustment mechanism for driving the hydraulic seat for adjustment are arranged in parallel outside the first hydraulic chamber.

[0007] Furthermore, the hydraulic oil master cylinder adjustment mechanism includes a master cylinder, a drive motor installed in the master cylinder, a master cylinder body arranged at the end of the master cylinder, a guide cylinder assembly connected and installed in conjunction with the end of the main cylinder, and a piston rod assembly used in conjunction with the drive motor; the piston rod assembly is installed in conjunction with the guide cylinder assembly and the end is slidably installed in the master cylinder body, and the drive motor drives the piston rod assembly to move axially along the master cylinder body and thereby drives the hydraulic oil in the first hydraulic chamber to drive the hydraulic seat to move.

[0008] Furthermore, the piston rod assembly includes an adjusting rod connected to the output end of the driving motor, an adjusting tube with an outer sleeve installed on the adjusting rod, and a master cylinder piston head installed at the end of the adjusting rod. The adjusting rod and the adjusting tube move synchronously and drive the master cylinder piston head to move.

[0009] Furthermore, the guide cylinder assembly includes a guide cylinder connected and installed in conjunction with the main cylinder body and a connecting plate installed in conjunction with the end of the guide cylinder. An internal thread structure is provided inside the guide cylinder, and an external thread of an adjusting tube is provided on the outside of the adjusting tube for use with the guide cylinder. The adjusting tube cooperates with the guide cylinder to form a threaded secondary structure, and the adjusting tube is fixedly connected with the adjusting rod.

[0010] Furthermore, the hydraulic oil auxiliary cylinder adjustment mechanism includes an auxiliary cylinder, a solenoid valve installed in the auxiliary cylinder, a sealing cover arranged in the auxiliary cylinder, and an auxiliary cylinder floating piston arranged in the auxiliary cylinder, and the auxiliary cylinder floating piston is arranged between the sealing cover and the solenoid valve.

[0011] Furthermore, a second hydraulic chamber is formed between the floating piston of the auxiliary cylinder and the electromagnetic valve, an air chamber is formed between the floating piston of the auxiliary cylinder and the sealing cover, and the electromagnetic valve is used to open or close the second hydraulic chamber.

[0012] Furthermore, it also includes an oil pipe connected to the first hydraulic chamber, and the hydraulic oil master cylinder adjustment mechanism and the hydraulic oil slave cylinder adjustment mechanism are both connected to the oil pipe.

[0013] Furthermore, a shock-absorbing spring is mounted on the end of the spring seat.

[0014] The beneficial effects of the present utility model are as follows: the rear shock absorber assembly of the present technical solution, through the hydraulic oil main cylinder adjustment mechanism and the hydraulic oil auxiliary cylinder adjustment mechanism arranged in parallel, when the seat height needs to be adjusted to a normal height, the height adjustment can be achieved through the hydraulic oil main cylinder adjustment mechanism; when the seat height needs to be adjusted quickly, the height adjustment can be achieved quickly through the hydraulic oil auxiliary cylinder adjustment mechanism, thereby meeting the operator's usage needs in different situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a schematic cross-sectional view of the utility model;

[0017] Figure 2 It is an overall schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the hydraulic oil master cylinder adjustment mechanism;

[0019] Figure 4 It is the hydraulic oil auxiliary cylinder adjustment mechanism. DETAILED DESCRIPTION

[0020] Figure 1 This is a schematic cross-sectional view of the utility model; Figure 2 It is an overall schematic diagram of the utility model; Figure 3 This is a schematic diagram of the hydraulic oil master cylinder adjustment mechanism; Figure 4 It is a hydraulic oil auxiliary cylinder adjustment mechanism; as shown in the figure, a motorcycle rear shock absorber assembly includes a hydraulic outer cylinder, a hydraulic seat installed in conjunction with the hydraulic outer cylinder, and a spring seat 2 arranged at the end of the hydraulic seat; a first hydraulic chamber 1 is formed between the hydraulic outer cylinder and the hydraulic seat, and a hydraulic oil main cylinder adjustment mechanism 4 and a hydraulic oil auxiliary cylinder adjustment mechanism 5 for driving the hydraulic seat for adjustment are arranged in parallel outside the first hydraulic chamber 1; the rear shock absorber assembly of the present technical solution, through the hydraulic oil main cylinder adjustment mechanism and the hydraulic oil auxiliary cylinder adjustment mechanism arranged in parallel, when the seat height needs to be adjusted to a normal height, the height adjustment can be achieved through the hydraulic oil main cylinder adjustment mechanism, and when the seat height needs to be adjusted quickly, the quick adjustment can be achieved through the hydraulic oil auxiliary cylinder adjustment mechanism, thereby meeting the operator's usage needs in different situations.

[0021] In this embodiment, the hydraulic oil master cylinder adjustment mechanism 4 includes a master cylinder 41, a drive motor 42 installed in the master cylinder 41, a master cylinder body 45 arranged at the end of the master cylinder 41, a guide cylinder assembly connected and installed with the end of the main cylinder 45, and a piston rod assembly used in conjunction with the drive motor 42. The piston rod assembly is installed in conjunction with the guide cylinder assembly and its end is slidably installed in the master cylinder body 45. The drive motor 42 drives the piston rod assembly to move axially along the master cylinder body, thereby driving the hydraulic oil in the first hydraulic chamber to drive the hydraulic seat to move. The master cylinder body 45 is fixedly installed in the master cylinder 41 and a master cylinder hydraulic chamber 49 is formed in the middle of the master cylinder body 45. The guide cylinder assembly is installed in conjunction with the master cylinder body 45. One end of the piston rod assembly is installed in conjunction with the output end of the drive motor, and the other end is installed in the master cylinder hydraulic chamber 49. The rotation of the drive motor 42 drives the piston rod assembly to move, thereby compressing the space in the master cylinder hydraulic chamber 49, allowing hydraulic oil to enter the first hydraulic chamber 1 and drive the hydraulic seat to move.

[0022] In this embodiment, the piston rod assembly includes an adjustment rod 43 connected to and mounted on the output end of a drive motor 42, an adjustment tube 44 mounted over the adjustment rod 43, and a master cylinder piston head 48 mounted on the end of the adjustment rod. The adjustment rod 43 and the adjustment tube 44 move synchronously and drive the movement of the master cylinder piston head 48. The end of the adjustment rod 43 is mounted on the output end of the drive motor. The adjustment rod 43 and the adjustment tube 44 can be fixedly connected. The ends of the adjustment rod 43 and the adjustment tube 44 abut against the end surface of the master cylinder piston head 48. When the output end of the drive motor outputs power, the adjustment rod 43 and the adjustment tube 44 move synchronously to drive the master cylinder piston head 48 to move along the axis of the master cylinder body.

[0023] In this embodiment, the guide cylinder assembly includes a guide cylinder 46 that is connected and mounted to the main cylinder body 45, and a connecting plate 47 that is mounted to the end of the guide cylinder 46. The guide cylinder 46 is provided with an internal thread structure, and the adjustment tube 44 is provided with an external adjustment tube thread that cooperates with the guide cylinder 46. The adjustment tube 44 and the guide cylinder 46 form a threaded substructure, and the adjustment tube 44 is fixedly connected to the adjustment rod 43. The end of the main cylinder body 45 is fixedly connected and mounted to the guide cylinder 46, and the end of the guide cylinder 46 is connected and mounted to the connecting plate 47. When the output end of the drive motor rotates, it drives the adjustment rod 43 and the adjustment tube 44 to rotate. The internal thread provided in the guide cylinder 46 enables them to move in the axial direction, thereby pushing the main cylinder piston head 48.

[0024] In this embodiment, the hydraulic oil slave cylinder adjustment mechanism 5 includes a slave cylinder 56, a solenoid valve 53 installed in the slave cylinder 56, a sealing cover 57 disposed in the slave cylinder, and a slave cylinder floating piston 55 disposed in the slave cylinder. The slave cylinder floating piston 55 is disposed between the sealing cover 57 and the solenoid valve 53. The solenoid valve 53 is mounted at the end of the slave cylinder 56, and the slave cylinder floating piston 55 is slidably disposed between the sealing cover 57 and the solenoid valve 53 to form two chambers for cooperating in filling different media.

[0025] In this embodiment, a second hydraulic chamber 52 is formed between the slave-cylinder floating piston 55 and the solenoid valve, and an air chamber 51 is formed between the slave-cylinder floating piston and the sealing cover. The solenoid valve 53 is used to open or close the second hydraulic chamber. These two chambers are filled with air and hydraulic oil, respectively. Opening or closing the valve core 54 of the solenoid valve 53 opens or closes the second hydraulic chamber 52.

[0026] In this embodiment, an oil pipe 3 is also included, which communicates with the first hydraulic chamber 1. Both the hydraulic oil master cylinder adjustment mechanism 4 and the hydraulic oil slave cylinder adjustment mechanism 5 are connected to the oil pipe 3. The first hydraulic chamber 1 is externally connected to the oil pipe 3, and the master and slave cylinder adjustment mechanisms are installed in parallel with the oil pipe for easy control and adjustment.

[0027] In this embodiment, a shock-absorbing spring is installed at the end of the spring seat 2.

[0028] Specific usage process:

[0029] 1. Increase preload / raise seat height:

[0030] The motor rotates forward, pushing the floating piston of the master cylinder to move to the left. The oil in the hydraulic chamber 49 of the master cylinder flows to the first hydraulic chamber 1 and the second hydraulic chamber 52 through the oil pipe. At this time, the solenoid valve in the slave cylinder is not energized, and the valve core is in a normally closed state. The oil channel flowing to the second hydraulic chamber 52 is blocked, and the oil flowing to the second hydraulic chamber 52 can only enter the first hydraulic chamber 1; after the oil enters the first hydraulic chamber 1, it pushes the spring seat 2 to move, so that the spring preload increases and the seat height rises.

[0031] 2. Reduce preload / seat height step down:

[0032] The motor rotates in the opposite direction, the solenoid valve of the slave cylinder is not energized, and the oil in the first hydraulic chamber 1 flows to the hydraulic chamber 49 of the master cylinder under the action of the spring force. The spring preload decreases until it reaches the set position, and the motor stops working. At this time, the spring preload and the seat height reach the set position.

[0033] 3. Seat height drops rapidly:

[0034] 1. The slave cylinder solenoid valve is energized, opening the solenoid valve spool 54 and opening the oil passage to the second hydraulic chamber 52. Under the force of the spring, the oil in the first hydraulic chamber 1 now flows into the master cylinder hydraulic chamber 49 and the second hydraulic chamber 52. Because the passage to the second hydraulic chamber 52 is fully open, and the slave cylinder's floating piston isolates the air chamber from the second hydraulic chamber 52, the oil can easily push the slave cylinder floating piston, compressing the gas in the air chamber and increasing the volume of the second hydraulic chamber 52. At the moment the solenoid valve opens, the oil in the first hydraulic chamber 1 almost completely enters the second hydraulic chamber 52. This instantly reduces the spring preload and rapidly lowers the seat height. Simultaneously, the motor rotates in the reverse direction, allowing the master cylinder piston head 48 to move rightward under the action of the oil pressure. After the seat height is fully lowered, the volume of the master cylinder hydraulic chamber 49 also increases as the motor slowly rotates in the reverse direction (the piston head returns to its original position). At this point, the oil in the second hydraulic chamber 52, under the pressure of the gas in the air chamber, flows into the master cylinder hydraulic chamber 49 until the motor stops. The solenoid valves are closed at the same time, the pressure in the second hydraulic chamber 52 is balanced with the pressure in the air chamber, and the oil also fills the hydraulic chamber 49 of the master cylinder (each chamber is returned to its original position) to wait for the seat height raising command.

[0035] Because the air chamber pressure is much smaller than the spring pressure, the air chamber only provides oil compensation. The air chamber pressure cannot cause the oil to push the spring, and the air chamber pressure will not change the spring preload (it only plays a compensatory role).

[0036] When the user adjusts the seat height by setting a gear, the ECU receives the command, deenergizing the solenoid valve (both the ECU and the solenoid valve utilize existing technology), and the motor rotates forward or reverse. The seat height is then adjusted based on the user's preference. Users can switch gears based on riding needs and changes in load weight, ensuring both comfort and safety.

[0037] When the user is waiting at a traffic light or parked, the ECU detects this state, energizing the solenoid valve and simultaneously reversing the motor, causing the seat height to automatically and rapidly drop. This allows the user to easily place their feet on the ground while waiting at a traffic light and facilitates boarding and exiting the vehicle, a particularly convenient feature for shorter riders or those riding taller motorcycles. Furthermore, after detecting that the vehicle has left this state for a period of time, the system will restore the selected preload / seat height to the user's desired riding conditions.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A motorcycle rear shock absorber assembly, characterized by: It includes a hydraulic outer cylinder, a hydraulic seat installed in conjunction with the hydraulic outer cylinder, and a spring seat installed in conjunction with the end of the hydraulic seat; a first hydraulic chamber is formed between the hydraulic outer cylinder and the hydraulic seat, and a hydraulic oil main cylinder adjustment mechanism and a hydraulic oil auxiliary cylinder adjustment mechanism for driving the hydraulic seat for adjustment are arranged in parallel outside the first hydraulic chamber.

2. The motorcycle rear shock absorber assembly according to claim 1, characterized in that: The hydraulic oil master cylinder adjustment mechanism includes a master cylinder, a drive motor installed in the master cylinder, a master cylinder body arranged at the end of the master cylinder, a guide cylinder assembly connected and installed in conjunction with the end of the main cylinder, and a piston rod assembly used in conjunction with the drive motor; the piston rod assembly is installed in conjunction with the guide cylinder assembly and the end is slidably installed in the master cylinder body, and the drive motor drives the piston rod assembly to move axially along the master cylinder body and thereby drives the hydraulic oil in the first hydraulic chamber to drive the hydraulic seat to move.

3. The motorcycle rear shock absorber assembly according to claim 2, characterized in that: The piston rod assembly includes an adjusting rod connected to the output end of the driving motor, an adjusting tube with an outer sleeve installed on the adjusting rod, and a master cylinder piston head installed at the end of the adjusting rod. The adjusting rod and the adjusting tube move synchronously and drive the master cylinder piston head to move.

4. The motorcycle rear shock absorber assembly according to claim 3, characterized in that: The guide cylinder assembly includes a guide cylinder connected and installed in conjunction with the main cylinder body and a connecting plate installed in conjunction with the end of the guide cylinder. An internal thread structure is provided inside the guide cylinder, and an external thread of an adjusting tube is provided on the outside of the adjusting tube for use with the guide cylinder. The adjusting tube cooperates with the guide cylinder to form a threaded secondary structure, and the adjusting tube is fixedly connected with the adjusting rod.

5. The motorcycle rear shock absorber assembly according to claim 1, characterized in that: The hydraulic oil auxiliary cylinder adjustment mechanism includes an auxiliary cylinder, a solenoid valve installed in the auxiliary cylinder, a sealing cover arranged in the auxiliary cylinder, and an auxiliary cylinder floating piston arranged in the auxiliary cylinder. The auxiliary cylinder floating piston is arranged between the sealing cover and the solenoid valve.

6. The motorcycle rear shock absorber assembly according to claim 5, characterized in that: A second hydraulic chamber is formed between the auxiliary cylinder floating piston and the electromagnetic valve, an air chamber is formed between the auxiliary cylinder floating piston and the sealing cover, and the electromagnetic valve is used to open or close the second hydraulic chamber.

7. The motorcycle rear shock absorber assembly according to claim 1, characterized in that: It also includes an oil pipe connected to the first hydraulic chamber, and the hydraulic oil master cylinder adjustment mechanism and the hydraulic oil slave cylinder adjustment mechanism are both connected to the oil pipe.

8. The motorcycle rear shock absorber assembly according to claim 1, characterized in that: A shock-absorbing spring is mounted on the end of the spring seat.

Images