Seat damping mechanism with air storage tank

Abstract

The utility model belongs to the technical field of shock absorption seats, and particularly relates to a seat shock absorption mechanism with air storage tanks, which comprises an upper plate component and a lower plate component, a shock absorption air bag is supported between the upper plate component and the lower plate component, more than one air storage tank is arranged on the upper plate component or / and the lower plate component, and the air storage tanks are connected with the shock absorption air bag. The vehicle seat damping mechanism has the advantages that the vehicle seat damping mechanism is simple in structure, the volume of the damping air bag is large, the damping frequency is large, the damping comfort is good, and the vehicle seat damping mechanism is suitable for the vehicle seat damping mechanism.

Description

Technical Field

[0001] The present invention belongs to the technical field of shock-absorbing seats, and particularly relates to a seat shock-absorbing mechanism with an air storage tank. Background Art

[0002] During vehicle driving, the seat shock-absorbing mechanism can buffer the impact force from the road surface. For example, when encountering an uneven road surface such as a pothole, it can reduce the impact of such sudden shocks on the driver and passengers, making the driving smoother, maintaining handling stability, and helping the vehicle maintain good handling performance.

[0003] Currently, the shock absorption of the shock-absorbing airbag of construction machinery is designed based on the principles of fluid mechanics and elasticity. Its core lies in using the compressibility of gas and the elastic deformation of the shock-absorbing airbag to absorb and dissipate vibration energy. By precisely controlling parameters such as the gas pressure, volume in the shock-absorbing airbag, and the elastic modulus of the shock-absorbing airbag material, effective suppression of vibrations with different frequencies and amplitudes is achieved.

[0004] The shock-absorbing airbag is a flexible airtight container, usually made of rubber or synthetic rubber materials. When the vehicle passes over an uneven road surface or encounters an impact, the shock-absorbing airbag will be squeezed or deformed, forcing the gas in the shock-absorbing airbag to be compressed, thereby absorbing and reducing the impact force. Due to the characteristic that the stiffness of the shock-absorbing airbag increases when the air is compressed smaller, the volume of the shock-absorbing airbag will affect the comfort of the shock absorber. However, the volume of the shock-absorbing airbag is limited, and its stiffness quickly increases when compressed, thus reducing the comfort of the shock absorber. It can be seen that the volume of the shock-absorbing airbag in the existing technology is small, resulting in poor comfort of the shock-absorbing airbag. Summary of the Invention

[0005] The purpose of the present invention is to provide a seat shock-absorbing mechanism with an air storage tank that has a simple structure, a large volume of the shock-absorbing airbag, a high shock-absorbing frequency, and good shock-absorbing comfort.

[0006] The purpose of the present invention is solved as follows:

[0007] A seat shock-absorbing mechanism with an air storage tank includes an upper plate assembly and a lower plate assembly. A shock-absorbing airbag is supported between the upper plate assembly and the lower plate assembly. One or more air storage tanks are provided on the upper plate assembly or / and the lower plate assembly. The air vent pipes of the air storage tanks are respectively connected to the shock-absorbing airbag and a control switch through multi-way joints, and the control switch is respectively connected to the air supply pipe of the inflation motor and the atmosphere.

[0008] As a further optimization of the above technical solution, there are two air storage tanks, and the two air storage tanks are respectively installed on the upper plate assembly on the front and rear sides of the shock-absorbing airbag.

[0009] As a further optimization of the above technical solution, the two gas storage tanks are respectively fixed on the upper surfaces of the front and rear sides of the upper plate assembly on the front and rear sides of the shock-absorbing airbag by bolts or / and ropes.

[0010] As a further optimization of the above technical solution, the multi-way joint is a four-way joint. The first and second joints of the four-way joint are respectively communicated with the ventilation pipes of the two gas storage tanks. The third joint of the four-way joint is communicated with the ventilation pipe of the shock-absorbing airbag. The fourth joint of the four-way joint is communicated with the air outlet of the control switch.

[0011] As a further optimization of the above technical solution, the control switch is a three-position four-way solenoid valve. The air inlet of the three-position four-way solenoid valve is communicated with the air supply pipe of the inflation motor. The air outlet is communicated with the third joint of the four-way joint. The two exhaust ports are communicated with the atmosphere.

[0012] As a further optimization of the above technical solution, both sides between the upper plate assembly and the lower plate assembly are supported by a cross-shaped connecting rod lifting assembly.

[0013] As a further optimization of the above technical solution, the connecting rod lifting assembly includes an inner connecting rod and an outer connecting rod arranged crosswise. The intersection of each inner connecting rod and the outer connecting rod is hinged by a hinge shaft.

[0014] As a further optimization of the above technical solution, the lower end of the shock-absorbing airbag is fixed in the middle of the upper plate assembly, and the upper end of the shock-absorbing airbag is fixed on the lower plate assembly through a mounting plate.

[0015] As a further optimization of the above technical solution, the control switch is installed on the front part of the lower plate assembly through a mounting seat.

[0016] As a further optimization of the above technical solution, a shock-absorbing spring or / and a magnetorheological damper are arranged between the upper plate assembly and the lower plate assembly. When the magnetorheological damper is provided, an acceleration sensor is arranged on the upper plate assembly, and an angle sensor is arranged on the magnetorheological damper. The controller controls the magnitude of the damping force of the magnetorheological damper according to the signals transmitted by the acceleration sensor and the angle sensor.

[0017] The outstanding advantages of the present invention compared with the prior art are:

[0018] 1. The present invention adds more than one gas storage tank outside the shock-absorbing airbag, thereby increasing the volume of the shock-absorbing airbag, reducing the compression ratio of the air, reducing the stiffness when the shock-absorbing airbag is compressed, and improving the comfort of the shock absorber.

[0019] 2. Without destroying the original structure of the shock absorber, the shock-absorbing airbag of the present invention is ingeniously hidden in the shock absorber and connected to the shock-absorbing airbag through an air pipe, which improves the shock-absorbing comfort without affecting the appearance and changing the original structure. The structure is simple, and the maintenance and replacement of components are convenient and fast.

[0020] 3. The present invention can effectively reduce the vibration amplitude within multiple frequency ranges of the seat, improve the comfort, and has high shock-absorbing efficiency and a wide frequency range.

[0021] 4. By adjusting parameters such as the gas pressure in the shock-absorbing airbag, the present invention can adapt to the shock-absorbing requirements under different working conditions and has strong self-adaptability.

[0022] 5. The shock-absorbing airbag of the present invention is made of high-strength and high-elasticity materials, has good fatigue resistance and wear resistance, and has a long service life.

[0023] 6. The present invention does not require additional energy input, and the heat generated during the shock-absorbing process can be naturally dissipated, meeting the environmental protection requirements and being environmentally friendly and energy-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional schematic diagram of the shock-absorbing mechanism of the present invention.

[0025] Figure 2 is a three-dimensional schematic diagram of the shock-absorbing mechanism of the present invention with some upper plate components removed.

[0026] Figure 3 is a three-dimensional schematic diagram of the shock-absorbing mechanism of the present invention with the upper plate components removed.

[0027] Figure 4 is a schematic diagram of the structure of the present invention when the left coil of the three-position four-way solenoid valve is energized and the inflating motor inflates the shock-absorbing airbag.

[0028] Figure 5 is a schematic diagram of the structure of the present invention when the right coil of the three-position four-way solenoid valve is energized and the inflating motor and the shock-absorbing airbag exhaust simultaneously.

[0029] Figure 6 is a schematic diagram of the structure of the present invention when the shock-absorbing airbag maintains pressure after the three-position four-way solenoid valve is powered off. DETAILED DESCRIPTION OF THE INVENTION

[0030] The following further describes the present invention with specific embodiments in conjunction with the drawings. Refer to Figures 1-6 :

[0031] A seat shock absorption mechanism with air storage tanks 16 and 21 includes an upper plate assembly 27 and a lower plate assembly 22. A shock absorption airbag 10 is supported between the upper plate assembly 27 and the lower plate assembly 22. One or more air storage tanks 16 and 21 are provided on the upper plate assembly 27 or / and the lower plate assembly 22. The vent pipes 17 and 19 of the air storage tanks 16 and 21 are respectively connected to the shock absorption airbag 10 and a control switch 14 through a multi-way joint 18. The control switch 14 is respectively connected to the supply pipe 13 of an air inflation motor 12 and the atmosphere. By controlling the control switch 14, the air pressure in the shock absorption airbag 10 can be controlled, and thus the shock absorption stiffness of the shock absorption airbag can be controlled.

[0032] As a further optimization of the above technical solution, there are two air storage tanks 16 and 21. The air storage tanks 16 and 21 can also adopt three or four or more air storage tanks according to the seat structures of different vehicles.

[0033] As a further optimization of the above technical solution, the two air storage tanks 16 and 21 are respectively installed on the upper plate assembly 27 on the front and rear sides of the shock absorption airbag 10.

[0034] As a further optimization of the above technical solution, the two air storage tanks 16 and 21 are respectively fixed on the upper surfaces of the front and rear sides of the upper plate assembly 27 on the front and rear sides of the shock absorption airbag 10 by bolts or / and ropes. Of course, dedicated air storage tank 16 and 21 mounting seats can also be provided on the upper plate assembly 27 or the lower plate assembly 22 for installing the air storage tanks 16 and 21.

[0035] As a further optimization of the above technical solution, the multi-way joint 18 is a four-way joint. The first and second joints of the four-way joint are respectively connected to the vent pipes 17 and 19 of the two air storage tanks 16 and 21. The third joint of the four-way joint is connected to the vent pipe 11 of the shock absorption airbag 10. The fourth joint of the four-way joint is connected to the air outlet 15 of the control switch 14. When more air storage tanks 16 and 21 are used, more connecting joints of the multi-way joint 18 can be provided for interconnection and interoperability.

[0036] As a further optimization of the above technical solution, the control switch 14 is a three-position four-way solenoid valve 30. The air inlet 31 of the three-position four-way solenoid valve 30 is connected to the supply pipe 13 of the air inflation motor 12, the air outlet 32 is connected to the third joint of the four-way joint, and the two exhaust ports 33 and 34 are connected to the atmosphere. Of course, an electric switch combined with a one-way valve or other mechanical switches can also be used to control the inflation or deflation of the shock absorption airbag 10.

[0037] As a further optimization of the above technical solution, both sides between the upper plate assembly 27 and the lower plate assembly 22 are supported by a cross-shaped connecting rod lifting assembly.

[0038] As a further optimization of the above technical solution, the connecting rod lifting assembly includes an inner connecting rod 25 and an outer connecting rod 23 which are arranged crosswise, and the intersection of each inner connecting rod 25 and outer connecting rod 23 is hinged through a hinge shaft 24.

[0039] As a further optimization of the above technical solution, the lower end of the shock-absorbing airbag 10 is fixed in the middle of the upper plate assembly 27, and the upper end of the shock-absorbing airbag 10 is fixed on the lower plate assembly 22 through a mounting plate 20.

[0040] As a further optimization of the above technical solution, the control switch 14 is installed on the front part of the lower plate assembly 22 through a mounting seat 26.

[0041] As a further optimization of the above technical solution, a shock-absorbing spring or a magnetorheological damper is provided between the upper plate assembly and the lower plate assembly; when the magnetorheological damper is provided, an acceleration sensor is provided on the upper plate assembly, and an angle sensor is provided on the magnetorheological damper, and the controller controls the magnitude of the damping force of the magnetorheological damper according to the signals transmitted by the acceleration sensor and the angle sensor.

[0042] When there is an impact or bump on the road surface, when the angle sensor detects the angle and the acceleration sensor detects the up-and-down displacement change, the controller obtains the angle and displacement analog signals transmitted by the angle sensor and the acceleration sensor, and after the system algorithm, outputs current to the magnetorheological damper. The magnetorheological damper is filled with a special electromagnetic fluid. Under the action of the magnetic field, the magnetic particles in the electromagnetic fluid will quickly align in a certain direction, hindering the flow of the oil in the piston channel. By changing the magnitude and direction of the current, the intensity and direction of the magnetic field can be adjusted, thereby changing the arrangement mode of the magnetic particles and the degree of hindrance to the oil flow, and realizing the precise control of the damping force of the magnetorheological damper.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still make simple substitutions or modifications to the technical solutions or technical features recorded in the foregoing embodiments with similar technologies, and these simple substitutions or modifications do not make the essence of the corresponding technical solutions deviate from the spirit and essence of the technical solutions of the various embodiments of the present invention, and are still within the protection scope of the present invention.

Claims

1. A seat shock absorption mechanism with an air storage tank, comprising an upper plate assembly and a lower plate assembly, characterized in that: A shock-absorbing airbag is supported between the upper plate assembly and the lower plate assembly. One or more air storage tanks are provided on the upper plate assembly and / or the lower plate assembly. The air vent pipes of the air storage tanks are respectively communicated with the shock-absorbing airbag and the control switch through a multi-way joint. The control switch is respectively communicated with the air supply pipe of the inflation motor and the atmosphere.

2. The seat shock absorption mechanism with an air storage tank according to claim 1, characterized in that: There are two air storage tanks, and the two air storage tanks are respectively installed on the upper plate assembly on the front and rear sides of the shock-absorbing airbag.

3. The seat shock absorption mechanism with an air storage tank according to claim 2, characterized in that: The two air storage tanks are respectively fixed on the upper surfaces of the front and rear sides of the upper plate assembly on the front and rear sides of the shock-absorbing airbag by bolts and / or ropes.

4. The seat shock-absorbing mechanism with an air storage tank according to claim 2, characterized in that: The multi-way joint is a four-way joint. The first and second joints of the four-way joint are respectively communicated with the air vent pipes of the two air storage tanks. The third joint of the four-way joint is communicated with the air vent pipe of the shock-absorbing airbag. The fourth joint of the four-way joint is communicated with the air outlet of the control switch.

5. The seat shock-absorbing mechanism with an air storage tank according to claim 4, characterized in that: The control switch is a three-position four-way solenoid valve. The air inlet of the three-position four-way solenoid valve is communicated with the air supply pipe of the inflation motor, the air outlet is communicated with the third joint of the four-way joint, and the two exhaust ports are communicated with the atmosphere.

6. The seat shock absorption mechanism with an air storage tank according to claim 1, characterized in that: Both sides between the upper plate assembly and the lower plate assembly are supported by a cross-link lifting assembly.

7. The seat shock absorption mechanism with an air storage tank according to claim 6, characterized in that: The link lifting assembly includes an inner link and an outer link arranged in a cross manner. The intersection of each inner link and outer link is hinged by a hinge shaft.

8. The seat shock absorption mechanism with an air storage tank according to claim 1, characterized in that: The lower end of the shock-absorbing airbag is fixed in the middle of the upper plate assembly, and the upper end of the shock-absorbing airbag is fixed on the lower plate assembly through a mounting plate.

9. The seat shock absorption mechanism with an air storage tank according to claim 1, characterized in that: The control switch is installed on the front part of the lower plate assembly through a mounting seat.

10. A seat shock absorption mechanism with an air storage tank according to any one of claims 1-9, characterized in that: A shock-absorbing spring and / or a magnetorheological damper is provided between the upper plate assembly and the lower plate assembly. When the magnetorheological damper is provided, an acceleration sensor is provided on the upper plate assembly, and an angle sensor is provided on the magnetorheological damper. The controller controls the magnitude of the damping force of the magnetorheological damper according to the signals transmitted by the acceleration sensor and the angle sensor.

Images