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 于曼华 张加 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调节阀,调节阀分别与气源、大气、空气弹簧和阻尼元件的阻尼力调节装置连接,该调节阀包括第一圆筒和至少一个可滑动布置在第一圆筒内的第一控制杆,通过第一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,实现空气弹簧的高度调节；和/或,使得阻尼元件的阻尼力调节装置与气源和大气之间气体流动连接,从而气驱动阻尼元件的阻尼力调节装置执行相应操作以控制阻尼元件输出相应的阻尼力,实现阻尼元件阻尼力大小的调节。可见,本发明实现了阻尼力和高度的调节。(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 an adjusting valve, wherein the adjusting valve is respectively connected with a gas source, the atmosphere, an air spring and a damping force adjusting device of a damping element, the adjusting valve comprises a first cylinder and at least one first control rod which can be arranged in the first cylinder in a sliding mode, and the height of the air spring is adjusted by generating gas flow connection between the air spring and the gas source or the atmosphere through the relative displacement of the first control rod and the first cylinder relative to each other; and/or the damping force adjusting device of the damping element is in gas flow connection with the gas source and the atmosphere, so that the damping force adjusting device of the gas-driven damping element performs 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. It can be seen that the present invention achieves adjustment of the damping force and height.)

1. The device for adjusting the damping force and the damping force height is characterized by comprising an adjusting valve, wherein the adjusting valve is respectively connected with a gas source, atmosphere, an air spring and a damping force adjusting device of a damping element;

the regulator valve includes a first cylinder and at least one first control rod slidably disposed within the first cylinder,

the height adjustment of the air spring is achieved by a relative displacement of the first control rod and the first cylinder relative to each other, so that a gas flow connection is produced between the air spring and a gas source or the atmosphere; and/or enabling the damping force adjusting device of the damping element to be in gas flow connection with the gas source and the atmosphere, so that the gas drives the damping force adjusting device of the damping element to perform corresponding operation to control the damping element to output corresponding damping force, and adjusting the damping force of the damping element.

2. The apparatus for adjusting damping force and height according to claim 1,

the working stroke of the regulating valve at least comprises three displacement threshold ranges, wherein the second displacement threshold range comprises the first displacement threshold range, and the third displacement threshold range comprises the second displacement threshold range;

when the relative displacement of the first cylinder and the first control rod with respect to each other is within the first displacement threshold range, no gas flow connection is generated between the air spring and the air source or the atmosphere, the air spring is neither inflated nor deflated, and no gas flow connection is generated between the damping force adjusting device of the damping element and the air source and the atmosphere, and the damping force of the damping element maintains a preset basic damping force;

when the relative displacement of the first cylinder and the first control rod with respect to each other is between the first displacement threshold range and the second displacement threshold range, such that a gas flow connection is created between the air spring and a gas source or atmosphere, enabling inflation or deflation of the air spring;

when the relative displacement of the first cylinder and the first control rod relative to each other is between the second displacement threshold range and the third displacement threshold range, the damping force adjusting device of the damping element is in gas flow connection with the air source and the atmosphere, the damping force adjusting device of the damping element is driven by gas to perform corresponding operation, the adjustment of the damping force of the damping element is realized, and the gas flow connection is generated between the air spring and the air source or the atmosphere, so that the air spring is inflated or deflated.

3. The apparatus for adjusting damping force and height according to claim 1,

the first cylinder comprises at least one first air inlet, a second air inlet, a first air outlet, a second air outlet, a third air outlet, a first air outlet and a second air outlet;

the first air inlet is connected with an air source, and the first air inlet is connected with the first air outlet;

the first air outlet is connected with the second air inlet;

the second air outlet is respectively connected with the damping force adjusting devices of the first exhaust and damping elements;

the third air outlet is connected with an air spring connecting port;

the first exhaust port and the second exhaust port are respectively connected with the atmosphere;

when the relative displacement of the first cylinder and the first control rod with respect to each other is between the first displacement threshold range and the second displacement threshold range, a gas flow connection is created between the second gas inlet and the third gas outlet, enabling inflation of the air spring, or a gas flow connection is created between the third gas outlet and the second gas outlet, enabling deflation of the air spring;

when the relative displacement of the first cylinder and the first control rod relative to each other is between the second displacement threshold range and the third displacement threshold range, the second air outlet is in air flow connection with the first air inlet and the first air outlet, a damping force adjusting device of the damping element is driven by air to perform corresponding operation, so that the damping force adjustment of the damping element is realized, and the air flow connection is generated between the third air outlet and the second air inlet, so that the air spring is inflated; or, the second gas outlet with produce gas flow connection between the second air inlet with the first gas vent, the air drive damping force adjusting device of damping element carries out corresponding operation, realizes damping force adjustment of damping element, just the third gas outlet with produce gas flow connection between the second gas vent, realize air spring's gassing.

4. The apparatus for adjusting damping force and height according to claim 1, 2 or 3,

at least four sealing elements are disposed between the first cylinder and the first control rod, thereby forming at least five gas chambers between the first cylinder and the first control rod in series, separated from each other.

5. An apparatus for adjusting damping force and height according to claim 4, wherein a first gas chamber is connected to the gas source, the first gas chamber is connected to a third gas chamber, a second gas chamber is connected to the damping force adjusting means of the damping member and the atmosphere, respectively, a fourth gas chamber is connected to the air spring, and a fifth gas chamber is connected to the atmosphere.

6. The apparatus for adjusting damping force and height according to claim 5,

the first control rod includes at least a first portion and a second portion, the second portion disposed at a distal end of the first portion, the first portion having a diameter smaller than a diameter of the second portion.

7. An apparatus for adjusting damping force and height as claimed in claim 6, wherein the longitudinal axis of the second portion is coincident with or parallel to the longitudinal axis of the first portion, and the difference in cross-sectional area of the first portion relative to the cross-sectional area of the second portion is used to carry gas pressure.

8. An apparatus for adjusting damping force and height as defined in claim 7 wherein said second portion includes at least one first axial groove.

9. A seat having at least two relatively movable scissor structures, 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 damping force 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 controls the air spring and the CDC damper to perform corresponding operations at the same time, so that height adjustment and Damping force 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.

Therefore, the application provides a pure mechanical mechanism for synchronously realizing the height adjustment and the damping force adjustment of the suspension system.

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 present invention, there is provided an apparatus for adjusting damping force and height, comprising an adjusting valve connected to a gas source, atmosphere, an air spring and a damping force adjusting device of a damping member, respectively;

the regulating valve comprises a first cylinder and at least one first control rod slidably arranged in the first cylinder, and the height adjustment of the air spring is realized by relative displacement of the first control rod and the first cylinder relative to each other to generate a gas flow connection between the air spring and an air source or the atmosphere; and/or enabling the damping force adjusting device of the damping element to be in gas flow connection with the gas source and the atmosphere, so that the gas drives the damping force adjusting device of the damping element to perform corresponding operation to control the damping element to output corresponding damping force, and adjusting the damping force of the damping element.

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, at least one damping element for absorbing shock and an air spring for adjusting height, the seat further comprising damping force adjustment means for the damping element and means for adjusting damping force and height as described above, the damping element, the air spring, the damping force adjustment means for the damping element being adapted to the position of the damping force and height adjustment means, the damping force and height adjustment means being connected to the damping force adjustment means for 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 scissor frame structures, the other end of the device for adjusting the damping force and the height is connected to the other scissor frame structure, the relative movement of the two relatively-moving scissor frame structures drives the device for adjusting the damping force and the height to control the air spring to inflate or deflate, or the relative movement of the two relatively-moving scissor frame structures 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 absorbing shock and air springs for adjusting height being provided between the vehicle body and the wheels, the vehicle suspension system further comprising damping force adjusting means for the damping elements and means for adjusting the damping force and height as described above, the positions of the damping elements, the air springs, the damping force adjusting means for the damping elements and the means for adjusting the damping force and height being adapted, the means for adjusting the damping force and height being connected to the damping force adjusting means for the damping elements and the air springs, respectively.

The invention has the beneficial effects that: the damping force and height adjusting device claimed by the invention can control inflation or deflation of the air spring to realize height adjustment through relative displacement of the first control rod and the first cylinder relative to each other, and can also control the damping force adjusting device of the air driving damping element to execute corresponding operation to control the damping element to output corresponding damping force to realize damping force adjustment, namely, realize height adjustment of a suspension system or synchronously realize height adjustment and damping force adjustment of the suspension system, so that the damping effect reaches the best state; 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 an apparatus for adjusting damping force and height in accordance with an embodiment of the present invention;

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

FIG. 3 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. 4 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. 5 illustrates a perspective view of a control lever in accordance with one embodiment of the present invention;

FIG. 6 illustrates a perspective view of another control lever in accordance with an embodiment of the present invention;

FIG. 7(a) is a cross-sectional view showing a first operating state of another apparatus for adjusting damping force and height in accordance with an embodiment of the present invention;

FIG. 7(b) is a cross-sectional view showing a second operating state of another device for adjusting damping force and height in accordance with an embodiment of the present invention;

FIG. 8 illustrates a perspective view of yet another apparatus for adjusting damping force and height in accordance with an embodiment of the present invention;

FIG. 9 illustrates an exploded view of yet another apparatus for adjusting damping force and height in accordance with an embodiment of 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 sectional view showing a second operating state of a further apparatus for adjusting a damping force and a height according to 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 shows an exploded view of yet another apparatus for adjusting damping force and height in accordance with an embodiment of the present invention;

FIG. 13 illustrates a functional block diagram of a chair according to one embodiment of the present 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.