Seat damping mechanism with air storage tank

Abstract

The invention belongs to the technical field of damping seats, and particularly relates to a seat damping mechanism with air storage tanks, which comprises an upper plate assembly and a lower plate assembly, a damping air bag is supported between the upper plate assembly and the lower plate assembly, and more than one air storage tank is arranged on the upper plate assembly or / and the lower plate assembly. The damping mechanism has the advantages that the 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 damping mechanism is suitable for the vehicle seat.

Description

Technical Field

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

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

[0003] At present, the working principle of shock-absorbing airbags for construction machinery is designed based on the principles of fluid mechanics and elastic mechanics. The core is to absorb and dissipate vibration energy by using the compressibility of gas and the elastic deformation of shock-absorbing airbags. By precisely controlling the gas pressure and volume in the shock-absorbing airbags and the elastic modulus of the shock-absorbing airbag material, effective suppression of vibrations of different frequencies and amplitudes can be achieved.

[0004] The shock-absorbing airbag is a flexible airtight container, usually made of rubber or synthetic rubber. When the vehicle passes by an uneven road or encounters an impact, the shock-absorbing airbag will be squeezed or deformed, forcing the gas in the shock-absorbing airbag to compress, thereby absorbing and mitigating the impact force. Since the smaller the air is compressed, the greater the stiffness of the shock-absorbing airbag, the volume of the shock-absorbing airbag will affect the comfort of the shock absorber. The volume of the shock-absorbing airbag is limited, and the stiffness increases quickly when compressed, thereby reducing the comfort of the shock absorber. It can be seen that the volume of the shock-absorbing airbag in the prior art is small, which makes the comfort of the shock-absorbing airbag worse. Summary of the invention

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

[0006] The object of the present invention is to solve like this:

[0007] A seat shock-absorbing mechanism with an air tank comprises 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, and one or more air tanks are arranged on the upper plate assembly and / or the lower plate assembly, and the ventilation pipes of the air tanks are respectively connected to the shock-absorbing airbag and a control switch through a multi-way connector, 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 assemblies on the front and rear sides of the shock-absorbing airbag.

[0009] As a further optimization of the above technical solution, the two air storage tanks are respectively fixed to 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.

[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 connected to the ventilation pipes of the two air storage tanks, the third joint of the four-way joint is connected to the ventilation pipe of the shock-absorbing airbag, and the fourth joint of the four-way joint is connected to 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 connected to the air supply pipe of the inflation motor, the air outlet is connected to the third connector of the four-way connector, and the two exhaust ports are connected to the atmosphere.

[0012] As a further optimization of the above technical solution, the two sides between the upper plate assembly and the lower plate assembly are respectively supported by cross-link lifting assemblies.

[0013] As a further optimization of the above technical solution, the connecting rod lifting assembly includes inner connecting rods and outer connecting rods that are cross-arranged, and each intersection of the inner connecting rod and the outer connecting rod is hingedly connected through a hinge shaft.

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

[0016] As a further optimization of the above technical solution, a shock-absorbing spring or a magnetorheological damper is arranged between the upper plate assembly and the lower plate assembly; when the magnetorheological damper is set, an acceleration sensor is arranged on the upper plate assembly, and an angle sensor is arranged 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.

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

[0018] 1. The present invention adds one or more air storage tanks outside the shock-absorbing airbag, thereby increasing the volume of the shock-absorbing airbag and reducing the air compression ratio, thereby reducing the stiffness of the shock-absorbing airbag during compression and improving the comfort of the shock absorber.

[0019] 2. The present invention cleverly hides the shock-absorbing airbag in the shock absorber without destroying the original structure of the shock absorber, and connects the shock-absorbing airbag through an air pipe, thereby improving the comfort of vibration reduction without affecting the appearance and changing the original structure. The structure is simple, and maintenance and replacement of parts are convenient and quick.

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

[0021] 4. The present invention can adapt to the vibration reduction requirements under different working conditions by adjusting parameters such as the gas pressure in the shock-absorbing airbag, and has strong 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 energy generated during the vibration reduction process can be naturally dissipated, which meets environmental protection requirements and is environmentally friendly and energy-saving. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0025] Figure 2 It is a three-dimensional schematic diagram of the shock absorbing mechanism of the present invention without a part of the upper plate assembly.

[0026] Figure 3 It is a three-dimensional schematic diagram of the shock absorbing mechanism of the present invention without the upper plate assembly.

[0027] Figure 4 It is a structural schematic diagram of the inflation motor in the inflated state of the shock-absorbing airbag after the left coil of the three-position four-way solenoid valve of the present invention is energized.

[0028] Figure 5 It is a structural schematic diagram of the three-position four-way solenoid valve of the present invention in the state where the inflation motor and the shock-absorbing airbag are simultaneously exhausted after the side coil is energized.

[0029] Figure 6 It is a structural schematic diagram of the shock-absorbing airbag pressure-maintaining state after the three-position four-way solenoid valve of the present invention is powered off. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to specific embodiments of the present invention. Figure 1-Figure 6 :

[0031] A seat shock-absorbing mechanism with air tanks 16, 21 includes an upper plate assembly 27 and a lower plate assembly 22, wherein a shock-absorbing airbag 10 is supported between the upper plate assembly 27 and the lower plate assembly 22, and one or more air tanks 16, 21 are arranged on the upper plate assembly 27 and / or the lower plate assembly 22, and the ventilation pipes 17, 19 of the air tanks 16, 21 are respectively connected to the shock-absorbing airbag 10 and a control switch 14 through a multi-way connector 18, and the control switch 14 is respectively connected to the air supply pipe 13 of the inflation motor 12 and the atmosphere, and the air pressure in the shock-absorbing airbag 10 can be controlled by the control switch 14, thereby controlling the shock-absorbing stiffness of the shock-absorbing airbag.

[0032] As a further optimization of the above technical solution, there are two gas storage tanks 16 and 21. The gas storage tanks 16 and 21 can also be three or four or more gas storage tanks according to the seat structure 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-absorbing airbag 10.

[0034] As a further optimization of the above technical solution, the two gas tanks 16, 21 are respectively fixed to the upper surfaces of the front and rear sides of the upper plate assembly 27 on the front and rear sides of the shock-absorbing airbag 10 by bolts and / or ropes. Of course, a dedicated gas tank 16, 21 mounting seat can also be provided on the upper plate assembly 27 or the lower plate assembly 22 for installing the gas tanks 16, 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 ventilation pipes 17 and 19 of the two gas tanks 16 and 21, the third joint of the four-way joint is connected to the ventilation pipe 11 of the shock-absorbing airbag 10, and the fourth joint of the four-way joint is connected to the air outlet 15 of the control switch 14; when more gas tanks 16 and 21 are used, more connecting joints of the multi-way joint 18 can be set to facilitate interconnection.

[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 air supply pipe 13 of the inflation motor 12, the air outlet 32 ​​is connected to the third connector of the four-way connector, and the two exhaust ports 33 and 34 are connected to the atmosphere; of course, an electrical switch combined with a one-way valve or other mechanical switches can also be used to control the inflation or deflation of the shock-absorbing 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 cross-link lifting assemblies.

[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 cross-arranged, and each intersection of the inner connecting rod 25 and the outer connecting rod 23 is hingedly connected 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 to the middle of the upper plate assembly 27 , and the upper end of the shock-absorbing airbag 10 is fixed to the lower plate assembly 22 via a mounting plate 20 .

[0040] As a further optimization of the above technical solution, the control switch 14 is installed on the front 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 arranged between the upper plate assembly and the lower plate assembly; when the magnetorheological damper is set, an acceleration sensor is arranged on the upper plate assembly, and an angle sensor is arranged 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 the road surface is impacted or bumpy, the angle sensor detects the angle and the acceleration sensor detects the up and down displacement changes. The controller obtains the angle and displacement analog signals transmitted by the angle sensor and the acceleration sensor, and outputs the current to the magnetorheological damper after the system algorithm. 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 arrange in a certain direction, hindering the flow of oil in the piston channel. By changing the size and direction of the current, the strength and direction of the magnetic field can be adjusted, thereby changing the arrangement of the magnetic particles and the degree of obstruction to the flow of oil, and realizing 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 the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions or technical features described in the aforementioned embodiments can still be simply replaced or modified with similar technologies, and these simple replacements or modifications do not deviate the essence of the corresponding technical solutions from the spirit and essence of the technical solutions of the embodiments of the present invention, and are still within the protection scope of the present invention.

Claims

1. A seat shock absorbing 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 arranged on the upper plate assembly and / or the lower plate assembly. The ventilation pipes of the air storage tanks are respectively connected to the shock-absorbing airbag and the control switch through a multi-way connector. The control switch is respectively connected to the air supply pipe of the inflation motor and the atmosphere.

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

3. A seat shock absorbing mechanism with an air storage tank according to claim 2, characterized in that: The two air storage tanks are respectively fixed to 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. A 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 connected to the ventilation pipes of the two gas storage tanks, the third joint of the four-way joint is connected to the ventilation pipe of the shock-absorbing airbag, and the fourth joint of the four-way joint is connected to the air outlet of the control switch.

5. A 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 connected to the air supply pipe of the inflation motor, the air outlet is connected to the third connector of the four-way connector, and the two exhaust ports are connected to the atmosphere.

6. A seat shock absorbing 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 cross-link lifting assemblies respectively.

7. A seat shock absorbing mechanism with an air storage tank according to claim 6, characterized in that: The connecting rod lifting assembly comprises inner connecting rods and outer connecting rods which are cross-arranged, and each intersection of the inner connecting rod and the outer connecting rod is hingedly connected through a hinge shaft.

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

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

10. A seat shock absorbing mechanism with an air storage tank according to any one of claims 1 to 9, characterized in that: A shock absorbing spring or a magnetorheological damper is arranged between the upper plate assembly and the lower plate assembly; when the magnetorheological damper is set, an acceleration sensor is arranged on the upper plate assembly, and an angle sensor is arranged on the magnetorheological damper, and a 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.

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