CN210912103U - Height adjusting device, seat and vehicle suspension system - Google Patents
Height adjusting device, seat and vehicle suspension system Download PDFInfo
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- CN210912103U CN210912103U CN201921749578.1U CN201921749578U CN210912103U CN 210912103 U CN210912103 U CN 210912103U CN 201921749578 U CN201921749578 U CN 201921749578U CN 210912103 U CN210912103 U CN 210912103U
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Abstract
The utility model discloses a height adjusting device, seat and vehicle suspension system. The height adjusting device comprises a gas compression device and a suspension valve; the float valve includes a first cylinder including a first air inlet, an air outlet, and an air spring connection port, and at least one first control rod slidably disposed in the first cylinder; the gas compression device comprises a second cylinder and at least one second control rod slidably disposed in the second cylinder, the second cylinder comprising a second gas inlet; producing a gas flow connection between the air spring connection port and the first air inlet or exhaust port by relative displacement of the first control rod and the first cylinder with respect to each other; when the relative displacement of the first control rod and the first cylinder relative to each other reaches the maximum working stroke, the compensation is carried out by the relative displacement of the second control rod and the second cylinder relative to each other, so that the working stroke of the suspension valve is not limited by the working stroke of the suspension valve.
Description
Technical Field
The utility model relates to a seat altitude mixture control field, concretely relates to height adjusting device, seat and vehicle suspension system.
Background
The existing suspension mechanism usually needs to be designed in an extended way in order to adapt to the suspension stroke of a longer suspension system, otherwise, once the suspension stroke of the suspension system exceeds the working stroke of the suspension mechanism, the suspension mechanism is damaged. Although the suspension stroke of a longer suspension system is satisfied after the working stroke of the suspension mechanism is prolonged, the tensile strength of the whole suspension mechanism is weakened due to the design, the service life is shortened, and the cost is increased.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention has been made to provide a height adjustment device, a seat, and a vehicle suspension system that overcome or at least partially solve the above problems.
According to an aspect of the present invention, there is provided a height adjustment device, the height adjustment device comprising a gas compression device and a float valve; the float valve includes a first cylinder including a first air inlet, an air outlet, and an air spring connection port, and at least one first control rod slidably disposed in the first cylinder; the gas compression device comprises a second cylinder comprising a second gas inlet and at least one second control rod slidably disposed in the second cylinder; the first control rod is connected with the second control rod; the first air inlet and the second air inlet are connected with an air source; creating a gas flow connection between the air spring connection port and the first air inlet or the exhaust port by relative displacement of the first control rod and the first cylinder with respect to each other;
when the relative displacement of the first control rod and the first cylinder with respect to each other reaches a maximum working stroke, compensation is made by the relative displacement of the second control rod and the second cylinder with respect to each other.
According to another aspect of the present invention, there is provided a seat having at least two scissor structures that move relative to each other and at least one air spring for height adjustment of the seat, the seat comprising the above height adjustment device, an air spring interface of the height adjustment device being connected to the air spring; one end of the height adjusting device is connected to one of the scissor frame structures, the other end of the height adjusting device is connected to the other scissor frame structure, and the relative movement of the two scissor frame structures which move relatively drives the height adjusting device to control the air spring to inflate or deflate.
According to another aspect of the present invention, there is provided a vehicle suspension system, the vehicle suspension system includes a vehicle body and at least four wheels, the vehicle body and at least two air springs for height adjustment are provided between the wheels, the vehicle suspension system further includes the above height adjustment device, the air springs and the position of the height adjustment device are adapted, the height adjustment device is connected with the air springs, the vehicle body and the relative movement between the wheels drives the height adjustment device to control the air springs to inflate or deflate.
The utility model has the advantages that: the suspension valve is communicated with an air source or atmosphere through the relative displacement of the first control rod and the first cylinder relative to each other, so that the air spring is inflated or deflated, the working stroke of the suspension valve is determined by the relative displacement of the first control rod and the first cylinder relative to each other, when the working stroke of the suspension valve reaches the maximum, the relative displacement of the second control rod and the second cylinder relative to each other is compensated, namely, the working stroke of the suspension valve is compensated by utilizing the working stroke of the gas compression device, so that the working stroke of the suspension valve is not limited by the working stroke of the suspension valve, the working stroke of the suspension valve is prolonged, and the requirements of different suspension strokes of different suspension systems are met under the condition that the optimal tensile strength of the whole height adjusting device is ensured.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.
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 shows a perspective view of a height adjustment device according to an embodiment of the present invention;
fig. 2 shows an exploded view of a height adjustment device according to an embodiment of the present invention;
fig. 3 shows a cross-sectional view of a height adjustment device according to an embodiment of the present invention;
fig. 4 shows a perspective view of a float valve in accordance with an embodiment of the present invention;
fig. 5 illustrates a cross-sectional view of a float valve in accordance with an embodiment of the present invention;
fig. 6 shows a perspective view of a control lever according to an embodiment of the invention;
fig. 7 shows a perspective view of another height adjustment device in accordance with an embodiment of the present invention;
fig. 8 shows an exploded view of another height adjustment device in accordance with an embodiment of the present invention;
fig. 9 shows a cross-sectional view of another height adjustment device in accordance with an embodiment of the present invention;
fig. 10 shows a functional block diagram of a seat according to an embodiment of the present invention;
description of the drawings: a height adjusting device 10; an air spring 30; a suspension valve A; a first cylinder A100; a first air inlet A110; an exhaust port A120; an air spring connection port a 130; a first control lever a 200; a first portion A210; a second portion a 220; end regions (a221, a 222); axial grooves (A221-1, A222-1); a sealing element A300; a first sealing element a 310; a second sealing element a 320; a gas chamber A400; a first gas chamber a 410; the second gas chamber a 420; the third gas chamber a 430; a gas compression device B; a second cylinder B100; a second intake port B110; a second control lever B200; a guide block B300; a guide means C; guide ring grooves (C110, C221); guide rods (C120, C230); a guide plate C210; a guide groove C220; a guide groove C222; a guide chute C300; a fixing device D; a scissor structure (30, 40).
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.
Example one
Fig. 1 shows a perspective view of a height adjustment device according to an embodiment of the invention, fig. 2 shows an exploded view of a height adjustment device according to an embodiment of the invention, fig. 3 shows a cross-sectional view of a height adjustment device according to an embodiment of the invention, fig. 4 shows a perspective view of a suspension valve according to an embodiment of the invention, as shown in fig. 1-4, the height adjustment device 10 comprising a gas compression device B and a suspension valve a; the suspension valve A comprises a first cylinder A100 and at least one first control rod A200 slidably arranged in the first cylinder A100, wherein the first cylinder A100 comprises a first air inlet A110, an air outlet A120 and an air spring connecting port A130; the gas compression device B comprises a second cylinder B100 and at least one second control rod B200 slidably arranged in the second cylinder B100, the second cylinder B200 comprising a second gas inlet B110;
the first control rod a200 is connected with the second control rod B200, for example, the first control rod a200 is connected with the second control rod B200 through a fixing device D, and the first air inlet a110 and the second air inlet B110 are connected with an air source; in practical applications, the first air inlet a110 may be connected to the second air inlet B110, and the first air inlet a110 or the second air inlet B110 may be connected to an air source.
A gas flow connection between the air spring connection port a130 and the first air inlet port a110 or the air outlet port a120 is produced by a relative displacement of the first control rod a200 and the first cylinder B100 with respect to each other; when the relative displacement of the first control rod a200 and the first cylinder a100 relative to each other reaches the maximum working stroke, the compensation is performed by the relative displacement of the second control rod B200 and the second cylinder B100 relative to each other, that is, as shown in fig. 3, when the position is in the working stroke of the suspension valve a, the working stroke of the gas compression device B is not changed, and the gas compression device B only plays a role of connecting the suspension valve a; when the position exceeds the working stroke of the suspension valve A, the working stroke of the gas compression device B is compensated, so that the working stroke of the suspension valve A is prolonged. It can be seen, the technical scheme of the utility model the suspension valve through first control lever and first drum relative displacement each other, make air spring and air supply or atmosphere intercommunication, realize inflating or gassing of air spring, the working stroke of suspension valve is confirmed by first control lever and first drum relative displacement each other, when the working stroke of suspension valve reaches the biggest, compensate for relative displacement each other by gas compression device's second control lever and second drum, namely, the working stroke of utilizing gas compression device compensates the working stroke of suspension valve, make the working stroke of suspension valve not receive the restriction of self working stroke, the working stroke of suspension valve has been prolonged, realized guaranteeing under the whole tensile strength optimal state of height adjustment device, satisfy the demand of the different suspension strokes of different suspension systems.
Fig. 5 shows a cross-sectional view of a suspension valve according to an embodiment of the present invention, as shown in fig. 5, at least two sealing elements a300 are provided between the first cylinder a100 and the first control rod a200, thereby forming at least three gas chambers a400 separated from each other and continuous between the first cylinder a100 and the first control rod a 200. Specifically, the gas chamber a400 includes a first gas chamber a410, a second gas chamber a420, and a third gas chamber a 430. As also shown in fig. 5, the first gas chamber a410 is connected to the first gas inlet a 110; the second gas chamber A420 is connected with the air spring connecting port A130; the third gas chamber a430 is connected to the exhaust port a120, or the third gas chamber a430 is connected to the atmosphere. That is, the first gas chamber a410 and the second gas chamber a420 are sealed chambers, respectively, and the third gas chamber a430 may be a sealed chamber or a non-sealed chamber. Since the three gas chambers are separated from each other and continuous with each other, when the first control rod a200 reciprocates in the first cylinder a100, respective gas flow connections are generated in the three gas chambers, thereby achieving height adjustment of the air spring.
Fig. 6 shows a perspective view of a control stick according to an embodiment of the invention, as shown in fig. 6, the first control stick a200 comprises at least a first portion a210 and a second portion a220, the second portion a220 being arranged at the end of the first portion a210, the diameter of the first portion a210 being smaller than the diameter of the second portion a 220.
As also shown in fig. 6, the longitudinal axis of the second portion a220 and the longitudinal axis of the first portion a210 are coincident or parallel to each other, and the area difference of the cross section of the first portion a210 relative to the cross section of the second portion a220 is used for bearing the gas pressure, so that the first control rod moves under the driving of the gas pressure.
As also shown in fig. 6, the second portion a220 has end regions (a221, a222) with chamfers inclined with respect to the longitudinal axis of the second portion a 220. And as shown in connection with fig. 5, when the end area a221 passes over the first sealing element a310 between the first gas chamber a410 and the second gas chamber a420, a gas flow connection is created between the first gas chamber a410 and the second gas chamber a420, enabling the air spring to be inflated; when the end region a222 passes over the second sealing element a320 between the third gas chamber a430 and the second gas chamber a420, a gas flow connection is created between the third gas chamber a430 and the second gas chamber a420, enabling air spring deflation. Therefore, the friction force between the first control rod and the first cylinder is reduced by the design of the end area, so that the first control rod can reciprocate in the first cylinder more smoothly, and the phenomenon of jamming when the first control rod reciprocates in the first cylinder is avoided.
As also shown in fig. 6, the second portion a220 has at least one axial groove (a221-1, a222-1) connected to the end region (a221, a 222). As shown in fig. 5, when the axial groove a221-1 passes over the first sealing element a310 between the first gas chamber a410 and the second gas chamber a420, a slight amount of gas flow connection is generated between the first gas chamber a410 and the second gas chamber a420, so that a small amount of gas is filled in the air spring; when the axial groove a222-1 passes the second sealing element a320 between the third gas chamber a430 and the second gas chamber a420, a slight gas flow connection is created between the third gas chamber a430 and the second gas chamber a420, so that a small amount of gas is evacuated from the air spring. The design of the axial groove realizes fine adjustment of the height of the air spring, so that suspension adjustment of the suspension system at a specific position is realized, and the comfort of the suspension system is further improved. It should be noted that the axial groove a221-1 passes the first sealing element a310 between the first gas chamber a410 and the second gas chamber a420 before the end region a221, and the axial groove a222-1 passes the second sealing element a320 between the third gas chamber a430 and the second gas chamber a420 before the end region a 222.
It should be noted that, according to the technical solution claimed in the present application, the gas mass flow at different positions can be controlled by changing the shape and depth of the axial grooves (a221-1, a222-1), so as to achieve different height adjustments at different positions, for example, the axial grooves (a221-1, a222-1) may be rectangular grooves or V-shaped grooves, and in addition, when the axial groove a221-1 is a V-shaped groove, the V-shaped groove is a positive V-shaped groove; when the axial groove a222-1 is a V-shaped groove, the V-shaped groove is an inverted V-shaped groove, and the shape of the axial groove is not further limited in this application.
As also shown in fig. 1-2, the height adjustment device 10 further includes a guide C, and the gas compression device B and the suspension valve a are slidably connected to the guide C, respectively. The guide device C enables the movement strokes of the gas compression device B and the suspension valve A to be on the same longitudinal axis, bears certain lateral pressure and improves the control precision of the height adjusting device. At the same time, the height adjustment device can be fixed to the suspension system by means of a guide. It can be seen that the guiding device plays a role in positioning, guiding and bearing a certain lateral pressure in the technical solution claimed in the present application.
The guide device C has the following two structures:
in a first configuration, as also shown in fig. 1-2, the guide means C comprise at least two guide ring grooves C110 and at least one guide rod C120, the guide rod C120 and the guide ring grooves C110 sliding with respect to each other; the gas compression device B is connected with at least one guide ring groove C110; the suspension valve A is connected with at least one guide ring groove C110.
A second structure, fig. 7 shows a perspective view of another height adjustment device according to an embodiment of the present invention, fig. 8 shows an exploded view of another height adjustment device according to an embodiment of the present invention, fig. 9 shows a cross-sectional view of another height adjustment device according to an embodiment of the present invention, as shown in fig. 7-9, the guide C comprises at least one guide plate C210, at least three guide grooves C220, and at least two guide rods C230; the guide groove C220 comprises a guide groove C221 and a guide groove C222; at least two guide ring grooves C221 are formed on both sides of the guide plate C210, for example, at least two symmetrical guide ring grooves C221 are formed on both sides of the guide plate C210, and at least one guide groove C222 is formed in the center of the guide plate C210; the gas compression device B is provided with a guide block B300, and the guide block B300 slides in the guide groove C222; the suspension valve A is arranged on the guide plate C210; the guide rod C230 slides in the guide ring groove C221.
In practical applications, the first guide device or the second guide device may be selectively applied according to practical needs, and the structure of the guide device is not further limited in the present application.
In addition, a guide chute C300 for fixing a cable is further arranged in the guide device C, and the cable can control the suspension valve A or the gas compression device B to reciprocate, so that a driver can adjust the height through the cable.
It should also be noted that the height adjustment device may be applied in a seat suspension system, a chassis suspension system of a vehicle, or a cab suspension system, and the application field of the height adjustment device is not further limited.
Example two
Fig. 10 shows a functional structure diagram of a seat according to an embodiment of the present invention, as shown in fig. 10, the seat has at least two scissor assemblies (30, 40) moving relative to each other and at least one air spring 20 for adjusting the height of the seat, the seat further includes a height adjusting device 10 as shown in the first embodiment, and an air spring connector a130 of the height adjusting device 10 is connected to the air spring 20;
one end of the height adjusting device 10 is connected to one of the scissor structures 30, the other end of the height adjusting device 10 is connected to the other scissor structure 40, and the relative movement of the two relatively moving scissor structures (30, 40) drives the height adjusting device 10 to control the air spring 20 to inflate or deflate.
Therefore, as long as the height of the seat changes, the first control rod a200 can be driven to reciprocate in the first cylinder a100, on the one hand, when the first control rod a200 and the first cylinder a100 generate relative displacement compared with each other, in this embodiment, the first control rod a200 moves downward relative to the first cylinder a100, and the air spring 20 and the air source generate air flow connection, so as to realize inflation of the air spring 20; of course, in other embodiments, it may be provided that deflation of air spring 20 is achieved when first control rod A200 is moved downward relative to first cylinder A100. On the other hand, when the first control rod a200 and the first cylinder a100 are relatively displaced with respect to each other, a gas flow connection is created between the air spring 20 and the atmosphere, in this embodiment the first control rod a200 is moved upwards with respect to the first cylinder a100, enabling deflation of the air spring 20; of course, in other embodiments, it may be provided that inflation of air spring 20 is achieved when first control rod A200 is moved upwardly relative to first cylinder A100. The present application is not further limited with respect to the correspondence of the direction of movement of the first control rod A200 relative to the first cylinder A100 and the inflation or deflation of the air spring 20. Compared with the seat which realizes height adjustment in an electric control mode in the prior art, the technical scheme of the utility model improves the sensitivity of height adjustment and further improves the comfort; moreover, the technical proposal of the utility model ensures that the driver does not need to manually adjust the height in the driving process, thus leading the attention of the driver to be more concentrated and reducing the occurrence of traffic accidents to a certain extent; and the height adjusting device in the seat is composed of a linear structure, the structure is adapted to the height of the seat suspension system, the limitation of the self space and the installation position of the seat suspension system is avoided, and the seat suspension system is convenient to install, low in failure rate, convenient to maintain and low in cost. Additionally, the technical scheme of the utility model utilize gas compression device's working stroke to compensate the working stroke of suspension valve, prolonged the working stroke of suspension valve for the working stroke of suspension valve does not receive the restriction of self working stroke, has realized guaranteeing under the whole tensile strength optimal state of high adjusting device, satisfies the demand of the different suspension strokes of different suspension systems.
Further, the seat further comprises a stay cable, the stay cable is connected with the height adjusting device 10, specifically, the stay cable penetrates through a guide chute C300 of the guide device to be connected with the height adjusting device 10, the stay cable drives the height adjusting device to control the air spring to inflate or deflate, the memory adjustment of the height gear of the seat is realized, the requirements of drivers with different heights and body types on different heights of the seat are met, the driver can obtain the posture of easily operating devices such as a steering wheel, a pedal and a gear lever, and the comfort is improved.
It should be noted that the length of the cable can be adjusted mechanically, for example, the length of the cable is adjusted by an adjusting handle; the adjustment can also be performed in an electrically controlled manner. For example, the length of the cable is adjusted through the motor, and the control mode of the length of the cable is not further limited in the application.
EXAMPLE III
A vehicle suspension system comprises a vehicle body and at least four wheels, wherein at least two air springs for height adjustment are arranged between the vehicle body and the wheels, the vehicle suspension system further comprises a height adjusting device 10 shown in the embodiment, the positions of the air springs and the height adjusting device 10 are matched, the height adjusting device 10 is connected with the air springs, and the relative movement between the vehicle body and the wheels drives the height adjusting device 10 to control the air springs to inflate or deflate.
Therefore, as long as the height of the vehicle suspension is changed, the first control rod is driven to reciprocate in the first cylinder by the relative motion between the vehicle body and the wheels, so that gas flowing connection is generated between the air spring and an air source or the atmosphere, the air spring is inflated or deflated, the vehicle suspension is kept at the preset height, and the comfort of the vehicle suspension system is improved.
It should be noted that the vehicle suspension system in the present embodiment includes a vehicle chassis suspension system, a cab suspension system, and the like.
To sum up, the technical scheme of the utility model utilize gas compression device's working stroke to compensate the working stroke of suspension valve for the working stroke of suspension valve does not receive the restriction of self working stroke, has prolonged the working stroke of suspension valve, has realized guaranteeing under the whole tensile strength optimal state of high adjusting device, satisfies the different demand of suspension stroke of different suspension systems.
It should be noted that the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and equivalents can be made in the technical solutions described in the foregoing embodiments, or some technical features thereof can be replaced. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
The utility model discloses a1, a height adjusting device, which comprises a gas compressing device and a suspension valve;
the float valve includes a first cylinder including a first air inlet, an air outlet, and an air spring connection port, and at least one first control rod slidably disposed in the first cylinder;
the gas compression device comprises a second cylinder comprising a second gas inlet and at least one second control rod slidably disposed in the second cylinder;
the first control rod is connected with the second control rod; the first air inlet and the second air inlet are connected with an air source;
creating a gas flow connection between the air spring connection port and the first air inlet or the exhaust port by relative displacement of the first control rod and the first cylinder with respect to each other;
when the relative displacement of the first control rod and the first cylinder with respect to each other reaches a maximum working stroke, compensation is made by the relative displacement of the second control rod and the second cylinder with respect to each other.
A2, the height adjustment device of a1, wherein at least two sealing elements are arranged between the first cylinder and the first control rod, thereby forming at least three gas chambers between the first cylinder and the first control rod, which are separated from each other and continuous.
A3, the height adjustment device of a2, wherein a first gas chamber is connected to the first gas inlet;
the second gas chamber is connected with the air spring connecting port;
the third gas chamber is connected to the exhaust port, or the third gas chamber is connected to the atmosphere.
A4, the height adjustment device of A3, wherein the first lever comprises at least a first portion and a second portion, the second portion being disposed at a distal end of the first portion, the first portion having a diameter smaller than a diameter of the second portion.
A5, the height adjustment device of A4, wherein the longitudinal axis of the second part and the longitudinal axis of the first part are coincident with or parallel to each other, and the difference in area of the cross section of the first part relative to the cross section of the second part is used for bearing gas pressure.
A6, the height adjustment device of A4, wherein the second portion has an end region with a chamfer that is inclined relative to the longitudinal axis of the second portion.
A7, the height adjustment device of a6, wherein a gas flow connection is created between the first gas chamber and the second gas chamber when the end region passes over a first sealing element between the first gas chamber and the second gas chamber;
a gas flow connection is created between the exhaust port and the air spring connection port when the end region passes over the second sealing element between the third gas chamber and the second gas chamber.
A8, the height adjustment device of A7, wherein the second part has at least one axial groove connecting with the end region.
A9, the height adjustment device of A8, wherein a gas flow connection is created between the first gas chamber and the second gas chamber when the axial groove passes over the first sealing element between the first gas chamber and the second gas chamber;
a gas flow connection is created between the third gas chamber and the second gas chamber when the axial groove passes over the second sealing element between the third gas chamber and the second gas chamber.
A10, the height adjusting device of A1, wherein the height adjusting device further comprises a guide device, and the gas compressing device and the suspension valve are respectively connected with the guide device in a sliding way.
A11, the height adjustment device of a10, wherein the guide device comprises at least two guide ring grooves and at least one guide rod, the guide rod and the guide ring grooves slide relative to each other;
the gas compression device is connected with at least one guide ring groove;
the suspension valve is connected with at least one guide ring groove.
A12, the height adjusting device of a10, wherein the guiding device comprises at least one guiding plate, at least three guiding grooves and at least two guiding rods; the guide groove comprises a guide ring groove and a guide groove;
at least two guide ring grooves are formed in two sides of the guide plate, and at least one guide groove is formed in the center of the guide plate;
the gas compression device is provided with a guide block, and the guide block slides in the guide groove;
the suspension valve is arranged on the guide plate;
the guide rod slides in the guide ring groove.
The utility model also discloses B13, a seat, the seat has at least two shear-shank structures of relative movement and at least one air spring that is used for the seat height adjustment, this seat includes as A1-A12 arbitrary one the height adjusting device, the air spring interface of height adjusting device with the air spring is connected;
one end of the height adjusting device is connected to one of the scissor frame structures, the other end of the height adjusting device is connected to the other scissor frame structure, and the relative movement of the two scissor frame structures which move relatively drives the height adjusting device to control the air spring to inflate or deflate.
B14, the seat as B13, wherein the seat further comprises a pull cable, the pull cable is connected with the height adjusting device, and the pull cable drives the height adjusting device to control the air spring to inflate or deflate, so that the memory adjustment of the height gear of the seat is realized.
B15, a vehicle suspension system, which comprises a vehicle body and at least four wheels, wherein at least two air springs for height adjustment are arranged between the vehicle body and the wheels, the vehicle suspension system also comprises a height adjusting device as in any one of A1-A12, the positions of the air springs and the height adjusting device are adapted, the height adjusting device is connected with the air springs, and the relative motion between the vehicle body and the wheels drives the height adjusting device to control the air springs to inflate or deflate.
Claims (15)
1. A height adjustment device, characterized in that the height adjustment device comprises a gas compression device and a float valve;
the float valve includes a first cylinder including a first air inlet, an air outlet, and an air spring connection port, and at least one first control rod slidably disposed in the first cylinder;
the gas compression device comprises a second cylinder comprising a second gas inlet and at least one second control rod slidably disposed in the second cylinder;
the first control rod is connected with the second control rod; the first air inlet and the second air inlet are connected with an air source;
creating a gas flow connection between the air spring connection port and the first air inlet or the exhaust port by relative displacement of the first control rod and the first cylinder with respect to each other;
when the relative displacement of the first control rod and the first cylinder with respect to each other reaches a maximum working stroke, compensation is made by the relative displacement of the second control rod and the second cylinder with respect to each other.
2. Height adjustment device according to claim 1, wherein at least two sealing elements are arranged between the first cylinder and the first control rod, so that at least three gas chambers are formed between the first cylinder and the first control rod in succession, separated from each other.
3. Height adjustment device according to claim 2,
the first gas chamber is connected with the first gas inlet;
the second gas chamber is connected with the air spring connecting port;
the third gas chamber is connected to the exhaust port, or the third gas chamber is connected to the atmosphere.
4. Height adjustment device according to claim 3,
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.
5. A height adjustment device as claimed in claim 4, wherein the longitudinal axis of the second portion is coincident with or parallel to the longitudinal axis of the first portion, the difference in area of the cross-section of the first portion relative to the cross-section of the second portion serving to carry the gas pressure.
6. The height adjustment device of claim 4, wherein the second portion has an end region with a chamfer that is oblique to a longitudinal axis of the second portion.
7. Height adjustment device according to claim 6,
a gas flow connection is created between the first gas chamber and the second gas chamber when the end region passes over a first sealing element between the first gas chamber and the second gas chamber;
a gas flow connection is created between the exhaust port and the air spring connection port when the end region passes over the second sealing element between the third gas chamber and the second gas chamber.
8. A height adjustment device as claimed in claim 7, wherein the second portion has at least one axial groove connected to the end region.
9. The height adjustment device of claim 8, wherein a gas flow connection is created between the first gas chamber and the second gas chamber when the axial groove passes over the first sealing element between the first gas chamber and the second gas chamber;
a gas flow connection is created between the third gas chamber and the second gas chamber when the axial groove passes over the second sealing element between the third gas chamber and the second gas chamber.
10. The height adjustment device of claim 1, wherein the height adjustment device further comprises a guide, and the gas compression device and the float valve are slidably coupled to the guide, respectively.
11. The height adjustment apparatus of claim 10, wherein the guide means comprises at least two guide ring grooves and at least one guide rod, the guide rod and the guide ring grooves sliding relative to each other;
the gas compression device is connected with at least one guide ring groove;
the suspension valve is connected with at least one guide ring groove.
12. The height adjustment apparatus of claim 10, wherein the guide means comprises at least one guide plate, at least three guide slots, and at least two guide rods; the guide groove comprises a guide ring groove and a guide groove;
at least two guide ring grooves are formed in two sides of the guide plate, and at least one guide groove is formed in the center of the guide plate;
the gas compression device is provided with a guide block, and the guide block slides in the guide groove;
the suspension valve is arranged on the guide plate;
the guide rod slides in the guide ring groove.
13. A seat having at least two relatively movable scissor structures and at least one air spring for height adjustment of the seat, wherein the seat comprises a height adjustment device according to any of claims 1-12, an air spring interface of the height adjustment device being connected to the air spring;
one end of the height adjusting device is connected to one of the scissor frame structures, the other end of the height adjusting device is connected to the other scissor frame structure, and the relative movement of the two scissor frame structures which move relatively drives the height adjusting device to control the air spring to inflate or deflate.
14. The seat of claim 13, further comprising a cable connected to the height adjustment device, wherein the cable drives the height adjustment device to control the air spring to inflate or deflate, thereby achieving a seat height gear memory adjustment.
15. A vehicle suspension system comprising a vehicle body and at least four wheels, at least two air springs for height adjustment being provided between the vehicle body and the wheels, characterized in that the vehicle suspension system further comprises a height adjustment device according to any one of claims 1-12, the air springs and the height adjustment device being adapted in position, the height adjustment device being connected to the air springs, and relative movement between the vehicle body and the wheels driving the height adjustment device to control inflation or deflation of the air springs.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921749578.1U CN210912103U (en) | 2019-10-18 | 2019-10-18 | Height adjusting device, seat and vehicle suspension system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921749578.1U CN210912103U (en) | 2019-10-18 | 2019-10-18 | Height adjusting device, seat and vehicle suspension system |
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| CN210912103U true CN210912103U (en) | 2020-07-03 |
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| CN201921749578.1U Active CN210912103U (en) | 2019-10-18 | 2019-10-18 | Height adjusting device, seat and vehicle suspension system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110588457A (en) * | 2019-10-18 | 2019-12-20 | 安路普（北京）汽车技术有限公司 | Height adjusting device, seat and vehicle suspension system |
| CN112096947A (en) * | 2020-09-08 | 2020-12-18 | 河北光华荣昌汽车部件有限公司 | Seat height control valve and car seat |
-
2019
- 2019-10-18 CN CN201921749578.1U patent/CN210912103U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110588457A (en) * | 2019-10-18 | 2019-12-20 | 安路普（北京）汽车技术有限公司 | Height adjusting device, seat and vehicle suspension system |
| WO2021073648A1 (en) * | 2019-10-18 | 2021-04-22 | 安路普（北京）汽车技术有限公司 | Height adjustment apparatus, seat, and vehicle suspension system |
| CN110588457B (en) * | 2019-10-18 | 2024-08-20 | 安路普（北京）汽车技术有限公司 | Height adjusting device, seat and vehicle suspension system |
| CN112096947A (en) * | 2020-09-08 | 2020-12-18 | 河北光华荣昌汽车部件有限公司 | Seat height control valve and car seat |
| CN112096947B (en) * | 2020-09-08 | 2021-09-07 | 河北光华荣昌汽车部件有限公司 | Seat height control valve and car seat |
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