CN201021162Y - Air spring scissor seat with adjustable stiffness and damping - Google Patents

Abstract

The utility model relates to an air spring scissor seat with adjustable stiffness and damping. Its frame is composed of an upper base plate, a lower base plate and two shear bars. The right end of the lower base plate is connected by a slideway, and the two shear bars are hinged in the middle; the damper is respectively hinged with the upper and lower base plates; it is characterized in that a control valve is installed on the damper; the seat also includes an air spring system, The upper end of the airbag of the air spring system is fixedly connected with the shear rod, and the lower end is connected with the lower base plate. The additional air chamber is connected with the airbag through a ball valve and a metal hose; the control rod is connected with the two-position three-way valve on the additional air chamber. The utility model utilizes the air spring and the damper to reduce vibration and improve the performance of vibration reduction; through the combined adjustment of the throttle hole between the air bag and the additional air chamber and the throttle hole of the damper, the stiffness and damping of the seat suspension can be improved. Adapt to changes in body weight and vehicle driving conditions.

Description

Air spring scissor seat with adjustable stiffness and damping

technical field

The utility model relates to a vibration isolation device suitable for passengers, in particular to a driver's seat applied to a vehicle. It belongs to the field of mechanical technology.

Background technique

Drivers of vehicles, trains and other means of transportation need to work for a long time, and the comfort of the seat has a great influence on the driver. If the sitting feeling is not very comfortable, it is easy to cause fatigue to the driver, affect safety, and endanger personal safety and health. vehicle safety. Therefore, providing a comfortable working condition for the driver, especially a good driver's seat is of great benefit to reducing the driver's fatigue. At present, coil springs with non-adjustable stiffness or shock absorbers with non-adjustable damping are generally used as vibration-damping components for the suspension of driver's seats. no significant effect.

Utility model content

In order to solve the above problems, the utility model provides a scissor seat with adjustable stiffness and damping based on an air spring.

In order to solve the above problems, the utility model is realized through the following technical solutions:

An air spring scissor seat with adjustable stiffness and damping, its main frame is composed of an upper base plate 1, a lower base plate 6 and shear bars 2, 5, the seat cushion is installed on the upper base plate 1, and the lower base plate 6 is connected to the vehicle body Connection; the left ends of the shear bars 2 and 5 are hinged with the left ends of the upper and lower base plates 1 and 6, and the right ends are connected with the right ends of the upper and lower base plates 1 and 6 through slideways, and there are slideway grooves at the right ends of the upper and lower base plates 1 and 6 , the shear bar 2 and the shear bar 5 are hinged in the middle; the upper end of the damper 4 is hinged with the upper base plate 1, and the lower end is hinged with the lower base plate 6; it is characterized in that a control valve 3 is installed on the damper 4, through the control valve 3. The change of the opening of the throttle hole of the damper 4 is adjustable, that is, the damping value of the damper 4 is adjusted; the air spring scissor seat with adjustable stiffness and damping also includes an air spring system, and the airbag of the air spring system 8. The upper end is fixedly connected with the shear bar 5, and the lower end is connected with the lower base plate 6; the additional air chamber 11 is connected with the air bag 8 through the ball valve 10 and the metal hose 9; the control rod 7 is hinged on the lower base plate 6, and is connected with the two The two-position three-way valve 12 is connected, and the control rod 7 is used to control the two-position three-way valve 12 to charge and deflate the air spring system.

The beneficial effects of the utility model are: the scissor seat uses the combination of the air spring with adjustable stiffness and the adjustable shock absorber to reduce the vibration, and improves the performance of vibration reduction; through the throttle hole between the air spring and the additional air chamber and the The combined adjustment of the throttle hole of the damper makes the stiffness and damping of the seat suspension adapt to changes in the weight of the human body and the driving conditions of the vehicle.

Description of drawings

Fig. 1 is a structural schematic diagram of an air spring scissor seat with adjustable stiffness and damping of the utility model.

Detailed ways

As shown in Figure 1, the seat is composed of upper base plate 1, lower base plate 6 and shear bars 2, 5 to form its main frame, the seat cushion is installed on the upper base plate 1, and lower base plate 6 is connected with the vehicle body; 5. The left end is hinged with the left ends of the upper and lower base plates 1 and 6, and its right end is connected with the right ends of the upper and lower base plates 1 and 6 through slideways. There are slideway grooves at the right ends of the upper and lower base plates 1 and 6. The rod 5 is hinged in the middle; the upper end of the damper 4 is hinged with the upper base plate 1, and the lower end is hinged with the lower base plate 6. A control valve 3 is installed on the damper 4, and the opening of the throttle hole of the damper 4 can be adjusted through the control valve 3. Change, that is, adjust the damping value of the damper 4; the upper end of the air bag 8 of the air spring system is fixedly connected with the shear bar 5, and the lower end is connected with the lower bottom plate 6; the additional air chamber 11 is connected with the air bag 8 through the ball valve 10 and the metal hose 9; The control rod 7 is hinged on the lower base plate 6 and connected with the two-position three-way valve 12 on the additional air chamber 11. The control rod 7 is used to control the two-position three-way valve 12 to charge and deflate the air spring system.

The scissor seat is connected with the seat cushion of the driver and the vehicle body, the seat cushion is placed on the upper part, and the vehicle body is connected at the lower part. The seat controls the inflation and deflation of the airbag 8 and the additional air chamber 11 through the control rod 7 to control the two-position three-way valve 12, so as to control the air pressure in the airbag 8; The opening of the orifice changes the volume of the airbag 8; the damping value of the damper 4 can be changed by adjusting the opening of the orifice of the damper 4 through the control valve 3. In this way, the stiffness and damping of the air spring and damper can be adapted to the needs of different driver weights and operating conditions, the vibration damping effect is obvious, and the adjustment range is large. Studies have shown that by adjusting the orifice of the ball valve 10 between the airbag 8 and the additional air chamber 11 and the orifice of the control valve 3 of the damper 4 to appropriate positions, optimal stiffness and damping values suitable for different driver weights can be obtained. The utility model can also be applied to other fields.

The above-mentioned embodiments do not limit the utility model in any form, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation all fall within the protection scope of the utility model.

Claims (1)

1. The air spring scissor seat with adjustable stiffness and damping is composed of an upper base plate, a lower base plate and two shear rods to form its frame, the seat cushion is installed on the upper base plate, and the lower base plate is connected with the body; the left ends of the two shear rods are the same as above 1. The left end of the lower base plate is hinged, and its right end is connected with the right ends of the upper and lower base plates through a slideway. There are slideway grooves at the right ends of the upper and lower base plates, and the two shear bars are hinged in the middle; the upper end of the damper is hinged with the upper base plate, and the lower end It is hinged with the lower floor; it is characterized in that a control valve is installed on the damper; the air spring scissor seat with adjustable stiffness and damping also includes an air spring system, and the upper end of the air bag of the air spring system is the same as the shear rod Fixed connection, the lower end is connected with the lower base plate, and the additional air chamber is connected with the air bag through a ball valve and a metal hose; the control rod is hinged on the lower base plate and connected with the two-position three-way valve on the additional air chamber.

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