阅读说明：本技术 一种调节阻尼力和高度的装置、座椅和车辆悬架系统 (Device, seat and vehicle suspension system for adjusting damping force and height ) 是由 孙国 张晓锋 张加 于曼华 冯永江 于 2019-10-18 设计创作，主要内容包括：本发明公开了一种调节阻尼力和高度的装置、座椅和车辆悬架系统。该调节阻尼力和高度的装置包括并列设置且相互连通的阻尼阀和高度阀,高度阀包括第一圆筒和至少一个可滑动地布置在第一圆筒中的高度控制杆,通过高度控制杆和第一圆筒相对于彼此的相对位移,使得空气弹簧与气源或者大气之间产生气体流动连接,实现空气弹簧的充气或放气；阻尼阀包括第二圆筒和至少一个可滑动地布置在第二圆筒中的阻尼力控制杆,通过阻尼力控制杆和第二圆筒相对于彼此的相对位移,使得阻尼元件的阻尼力调节装置与气源和大气之间产生气体流动连接,实现阻尼元件阻尼力大小的调节；其中,高度控制杆和阻尼力控制杆同步驱动。可见,本发明实现了高度和阻尼力的同步调节。(The invention discloses a device for adjusting damping force and height, a seat and a vehicle suspension system. The device for adjusting the damping force and the height comprises a damping valve and a height valve which are arranged in parallel and are communicated with each other, the height valve comprises a first cylinder and at least one height control rod which is slidably arranged in the first cylinder, and the air spring is in gas flow connection with an air source or the atmosphere through the relative displacement of the height control rod and the first cylinder relative to each other, so that the air spring is inflated or deflated; the damping valve comprises a second cylinder and at least one damping force control rod slidably arranged in the second cylinder, and the damping force of the damping element is adjusted by means of relative displacement of the damping force control rod and the second cylinder relative to each other, so that a gas flow connection is generated between the damping force adjusting device of the damping element and the gas source and the atmosphere; wherein the height control lever and the damping force control lever are driven synchronously. Therefore, the invention realizes synchronous adjustment of the height and the damping force.)

1. the device for adjusting the damping force and the height is characterized by comprising an adjusting valve, wherein the adjusting valve comprises a damping valve and a height valve which are arranged in parallel and are communicated with each other, the damping valve and/or the height valve are/is connected with an air source, the damping valve is connected with a damping force adjusting device of a damping element, and the height valve is connected with an air spring;

Said height valve comprising a first cylinder and at least one height control rod slidably disposed in said first cylinder, inflation or deflation of said air spring being effected by relative displacement of said height control rod and said first cylinder with respect to one another such that a gas flow connection is created between said air spring and a gas source or atmosphere;

the damping valve comprises a second cylinder and at least one damping force control rod which is slidably arranged in the second cylinder, and through the relative displacement of the damping force control rod and the second cylinder relative to each other, the damping force adjusting device of the damping element is in gas flow connection with a gas source and the atmosphere, so that the damping force adjusting device of the damping element is driven by gas to perform corresponding operations to control the damping element to output corresponding damping force, and the adjustment of the damping force of the damping element is realized;

wherein the height control lever and the damping force control lever are driven in synchronization.

2. The apparatus for adjusting damping force and altitude of claim 1, wherein the working stroke of the adjustment valve is determined by the working stroke of the damping valve and the working stroke of the altitude valve, the working stroke of the damping valve and the working stroke of the altitude valve correspond, the working stroke of the adjustment valve comprises at least three displacement threshold ranges, wherein a second displacement threshold range comprises a first displacement threshold range, and a third displacement threshold range comprises the second displacement threshold range;

The working stroke of the regulating valve is within the range of the first displacement threshold value, the height valve controls the air spring to be neither inflated nor deflated, the damping valve does not drive the damping force adjusting device of the damping element to execute corresponding operation, and the damping force of the damping element is a preset basic damping force;

The working stroke of the regulating valve is between the first displacement threshold range and the second displacement threshold range, the height valve controls the air spring to inflate or deflate, the damping valve does not drive the damping force adjusting device of the damping element to perform corresponding operation, and the damping force of the damping element is a preset basic damping force;

the working stroke of the regulating valve is between the second displacement threshold range and the third displacement threshold range, the height valve controls the air spring to inflate or deflate, and the damping force adjusting device of the damping element is driven by the damping valve to be in gas flow connection with the air source and the atmosphere, so that the damping force adjusting device of the damping element is driven by the air to perform corresponding operation to control the damping element to output corresponding damping force.

3. A device for adjusting damping force and height according to any one of claims 1-2, wherein at least two sealing elements are provided between the first cylinder and the height control rod, thereby forming at least three gas chambers between the first cylinder and the height control rod in succession, separated from each other.

4. A device for adjusting damping force and height as defined in claim 3 wherein a first gas chamber is connected to said gas source and said damping valve;

The second gas chamber is connected with the air spring connecting port;

the third gas chamber is connected to the atmosphere.

5. An apparatus for adjusting damping force and height as defined in claim 4, wherein said height control lever includes at least a first portion and a second portion, said second portion being disposed at a distal end of said first portion, said first portion having a diameter smaller than a diameter of said second portion.

6. An apparatus for adjusting damping force and height according to any one of claims 1-2, wherein at least two sealing members are provided between the second cylinder and the damping force control rod, thereby forming at least three gas chambers separated from each other and continuous between the second cylinder and the damping force control rod.

7. an apparatus for adjusting damping force and height as defined in claim 6 wherein a fourth gas chamber is connected to said gas source, said fourth gas chamber being connected to a sixth gas chamber;

the fifth gas chamber is connected to the damping force adjusting device of the damping element and the atmosphere, respectively.

8. An apparatus for adjusting damping force and height according to claim 7, wherein the damping force control lever comprises a first portion, a second portion and a third portion in that order, the first portion having a smaller diameter than the third portion having a smaller diameter than the second portion.

9. a seat having at least two relatively movable scissor structures and at least one damping element for shock absorption and an air spring for height adjustment, characterized in that the seat further comprises a damping force adjustment device of the damping element and a device for adjusting the damping force and height according to any of claims 1-8, the damping force adjustment device of the damping element, the air spring, the damping force adjustment device of the damping element being adapted to the position of the four devices for adjusting the damping force and height, which are connected to the damping force adjustment device of the damping element and the air spring, respectively;

One end of the device for adjusting the damping force and the height is connected to one of the shear shank structures, the other end of the device for adjusting the damping force and the height is connected to the other shear shank structure, and the relative movement of the two shear shank structures moving relative to each other drives the device for adjusting the damping force and the height to control the air spring to inflate or deflate so as to realize the suspension adjustment of the seat; and/or the relative movement of the two scissor frame structures which move relatively drives the device for adjusting the damping force and the height to control the damping force adjusting device of the damping element to perform corresponding operation, so that the seat damping force is adjusted.

10. a vehicle suspension system comprising a vehicle body and at least four wheels, between which at least two damping elements for shock absorption and air springs for height adjustment are arranged, characterized in that the vehicle suspension system further comprises damping force adjusting means of the damping elements and means for adjusting the damping force and height according to any one of claims 1-8, the damping elements, the air springs, the damping force adjusting means of the damping elements and the means for adjusting the damping force and height being adapted in position, the means for adjusting the damping force and height being connected to the damping force adjusting means of the damping elements and the air springs, respectively.

Technical Field

The invention relates to the field of shock absorbers, in particular to a device for adjusting damping force and height, a seat and a vehicle suspension system.

Background

The existing suspension system mainly comprises two control systems of height adjustment and shock absorption adjustment, wherein the two control systems are mutually independent systems and are respectively provided with corresponding control mechanisms. In the manual adjustment mode, two buttons need to be pressed simultaneously to realize synchronous adjustment of two control systems, and the operation is inconvenient. In an electric Control mode, a common suspension Control system based on a CDC Damper (CDC) is used, the suspension Control system firstly collects information by using a sensor and sends the collected information to an electronic Control unit, the electronic Control unit calculates air pressure in an air spring airbag and Damping force of the damper at the same time, and sends the calculated Control signal to the air spring and the CDC damper at the same time, and the air spring and the CDC damper are controlled to perform corresponding operations at the same time, so that height adjustment and shock absorption adjustment of the suspension system are realized. Although the suspension control system can well improve the stability and comfort of the suspension system, the electronic components in the suspension control system are easily limited by the installation position in the practical application process, so that the control precision is not accurate enough and the installation and maintenance are inconvenient; in addition, the electronic components are easily limited by the space of the suspension system on the circuit layout, and the cost of the suspension control system is high, so that the suspension control system is not widely applied.

For this reason, this application has proposed that a pure mechanical mechanism realizes altitude mixture control and shock attenuation regulation in step.

disclosure of Invention

in view of the above, the present invention has been made to provide an apparatus for adjusting damping force and height, a seat and a vehicle suspension system that overcome or at least partially solve the above problems.

According to one aspect of the invention, a damping force and height adjusting device is provided, and comprises a regulating valve, wherein the regulating valve comprises a damping valve and a height valve which are arranged in parallel and communicated with each other, the damping valve and/or the height valve is connected with an air source, the damping valve is connected with a damping force adjusting device of a damping element, and the height valve is connected with an air spring; said height valve comprising a first cylinder and at least one height control rod slidably disposed in said first cylinder, inflation or deflation of said air spring being effected by relative displacement of said height control rod and said first cylinder with respect to one another such that a gas flow connection is created between said air spring and a gas source or atmosphere; the damping valve comprises a second cylinder and at least one damping force control rod which is slidably arranged in the second cylinder, and through the relative displacement of the damping force control rod and the second cylinder relative to each other, the damping force adjusting device of the damping element is in gas flow connection with a gas source and the atmosphere, so that the damping force adjusting device of the damping element is driven by gas to perform corresponding operation to control the damping element to output corresponding damping force, and the adjustment of the damping force of the damping element is realized; wherein the height control lever and the damping force control lever are driven in synchronization.

According to another aspect of the present invention, there is provided a seat having at least two scissor structures which move relative to each other and at least one damping element for absorbing shock and an air spring for adjusting height, the seat further comprising a damping force adjusting device of the damping element and the above-mentioned device for adjusting damping force and height, the damping force adjusting device of the damping element, the air spring and the damping force adjusting device of the damping element being adapted to the position of the four devices for adjusting damping force and height, the devices for adjusting damping force and height being connected to the damping force adjusting device of the damping element and the air spring, respectively; one end of the device for adjusting the damping force and the height is connected to one of the shear shank structures, the other end of the device for adjusting the damping force and the height is connected to the other shear shank structure, and the relative movement of the two shear shank structures moving relative to each other drives the device for adjusting the damping force and the height to control the air spring to inflate or deflate so as to realize the suspension adjustment of the seat; and/or the relative movement of the two scissor frame structures which move relatively drives the device for adjusting the damping force and the height to control the damping force adjusting device of the damping element to perform corresponding operation, so that the seat damping force is adjusted.

According to a further aspect of the present invention, there is provided a vehicle suspension system, comprising a vehicle body and at least four wheels, at least two damping elements for damping and air springs for height adjustment being provided between the vehicle body and the wheels, the vehicle suspension system further comprising damping force adjusting means for the damping elements and the damping force and height adjusting means described above, the positions of the damping elements, the air springs, the damping force adjusting means for the damping elements and the damping force and height adjusting means being adapted, the damping force and height adjusting means being connected to the damping force adjusting means for the damping elements and the air springs, respectively.

the invention has the beneficial effects that: according to the technical scheme, the damping valve and the height valve which are arranged in parallel and communicated with each other are used for synchronously driving the height control rod and the damping force control rod to reciprocate in the first cylinder and the second cylinder respectively, when the height control rod and the first cylinder generate relative displacement compared with each other, gas flowing connection is generated between the air spring and an air source or atmosphere, and inflation or deflation of the air spring is realized; and when the damping force control rod and the second cylinder generate relative displacement relative to each other, so that gas flow connection is generated between the damping force adjusting device of the damping element and the gas source and atmosphere, the mass flow of gas in the damping force adjusting device of the damping element is changed, and the damping force adjusting device of the gas-driven damping element performs corresponding operation to control the damping element to output corresponding damping force, so that the adjustment of the magnitude of the damping force is realized. Therefore, in the technical scheme of the invention, the height suspension adjustment and the synchronous adjustment of the height and the damping force are realized through the cooperative coordination of the mechanical mechanisms, compared with the prior art in which the height suspension adjustment or the synchronous adjustment of the height and the damping force are realized through an electric control mode, the sensitivity of the height adjustment and the damping force adjustment is improved, and the comfort is further improved; in addition, the technical scheme of the invention ensures that a driver does not need to manually adjust the damping force and the height in the driving process, so that the attention of the driver is more concentrated, and the occurrence of traffic accidents can be reduced to a certain extent; the technical scheme of the invention is composed of a linear structure, the structure is adapted to the height of the suspension system, is not limited by the space and the installation position of the suspension system, and has the advantages of convenient installation, low failure rate, convenient maintenance and low cost.

The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.

drawings

various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 illustrates a perspective view of a device for adjusting damping force and height in accordance with an embodiment of the present invention;

FIG. 2 illustrates a first cross-sectional view of an apparatus for adjusting damping force and height in accordance with an embodiment of the present invention;

FIG. 3 illustrates a second cross-sectional view of an apparatus for adjusting damping force and height in accordance with an embodiment of the present invention;

FIG. 4 illustrates a perspective view of a height control stick in accordance with an embodiment of the present invention;

FIG. 5 illustrates a perspective view of a damping force control lever in accordance with one embodiment of the present invention;

FIG. 6 illustrates a first cross-sectional view of another apparatus for adjusting damping force and height in accordance with an embodiment of the present invention;

FIG. 7 illustrates a second cross-sectional view of another apparatus for adjusting damping force and height in accordance with an embodiment of the present invention;

FIG. 8 illustrates a perspective view of another damping force control lever in accordance with an embodiment of the present invention;

FIG. 9 illustrates a perspective view of yet another damping force control lever in an embodiment in accordance with the present invention;

FIG. 10(a) is a cross-sectional view showing a first operating state of yet another apparatus for adjusting damping force and height in accordance with an embodiment of the present invention;

FIG. 10(b) is a cross-sectional view showing a second operating state of still another apparatus for adjusting damping force and height in accordance with an embodiment of the present invention;

FIG. 11 illustrates a perspective view of yet another apparatus for adjusting damping force and height in accordance with an embodiment of the present invention;

FIG. 12 illustrates an exploded view of yet another apparatus for adjusting damping force and height in accordance with an embodiment of the present invention;

FIG. 13(a) is a cross-sectional view showing a first operating state of yet another apparatus for adjusting damping force and height in accordance with an embodiment of the present invention;

FIG. 13(b) is a sectional view showing a first operation state of a further apparatus for adjusting a damping force and a height in accordance with an embodiment of the present invention;

FIG. 14 illustrates a perspective view of a plurality of devices for adjusting damping force and height in accordance with an embodiment of the present invention;

FIG. 15 illustrates an exploded view of a plurality of means for adjusting the damping force and height in accordance with an embodiment of the present invention;

FIG. 16 shows a functional block diagram of a chair according to an embodiment of the invention;

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.