CN109466267B - Vehicle air bag height adjusting device - Google Patents
Vehicle air bag height adjusting device Download PDFInfo
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- CN109466267B CN109466267B CN201811471621.2A CN201811471621A CN109466267B CN 109466267 B CN109466267 B CN 109466267B CN 201811471621 A CN201811471621 A CN 201811471621A CN 109466267 B CN109466267 B CN 109466267B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
- B60G17/052—Pneumatic spring characteristics
- B60G17/0523—Regulating distributors or valves for pneumatic springs
- B60G17/0525—Height adjusting or levelling valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/10—Type of spring
- B60G2202/15—Fluid spring
- B60G2202/152—Pneumatic spring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/20—Spring action or springs
- B60G2500/202—Height or leveling valve for air-springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/30—Height or ground clearance
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a height adjusting device for an air bag of a vehicle, which comprises an electromagnetic valve body, wherein a first chamber, a second chamber, a third chamber and a fourth chamber which are mutually separated are arranged in the electromagnetic valve body, the first chamber is connected with the second chamber through an air inlet control valve, the first chamber is separated from the second chamber through an air inlet diaphragm, the second chamber is connected with the fourth chamber through an air outlet control valve, the third chamber is connected with the fourth chamber through an air outlet valve, the third chamber is connected with the air bag through a pipeline, the air outlet control valve and the air outlet valve are respectively and electrically connected with a controller, the controller is also electrically connected with a mode reversing valve, and the mode reversing valve is also respectively connected with an air bottle and the second chamber through a pipeline. Compared with the prior art, the technical scheme of the invention has the advantages of reliable structure, rich functions and the like, and can realize adaptive adjustment of the action height of the vehicle air bag and effectively improve the riding comfort of the vehicle.
Description
Technical Field
The invention relates to the technical field of automobile height adjustment, in particular to a height adjustment device for an air bag of a vehicle.
Background
In the prior art, the height of a car body of a coach for long-distance transportation can be conveniently adjusted through the air bags arranged at the lower part of the coach, so that the coach has better passing performance, but if the passenger capacity of the coach is greatly changed, namely the bearing pressure of the air bags is greatly changed, the height of the coach is also greatly changed, so that the corresponding mechanism is arranged to conveniently, real-time and conveniently adjust the air bag inflation amount, more air is filled into the air bags when passengers are more, the height of the coach is improved, and the air inside the air bags is reduced when the passengers are fewer, so that the height of the coach is reduced, and the coach has important significance for improving the riding comfort of the coach.
Disclosure of Invention
The invention mainly aims to provide a vehicle air bag height adjusting device with reliable structure and rich functions, which aims to realize adaptive adjustment of the action height of a vehicle air bag and improve the riding comfort of the vehicle.
In order to achieve the above purpose, the vehicle air bag height adjusting device provided by the invention comprises an electromagnetic valve body, wherein a first chamber, a second chamber, a third chamber and a fourth chamber which are mutually separated are arranged in the electromagnetic valve body, the first chamber and the second chamber are connected through an air inlet control valve, the first chamber and the second chamber are also separated through an air inlet diaphragm, the second chamber and the fourth chamber are connected through an air outlet control valve, the third chamber and the fourth chamber are connected through an air outlet valve, the third chamber is connected with an air bag through a pipeline, the air outlet control valve and the air outlet valve are respectively and electrically connected with a controller, the controller is also electrically connected with a mode reversing valve, and the mode reversing valve is also respectively connected with an air bottle and the second chamber through a pipeline.
Preferably, the mode reversing valve is connected with the relay valve through a parallel pipeline, a first pipeline of the parallel pipeline is connected with an upper cavity of the relay valve through a manual air inlet valve, a second pipeline of the parallel pipeline is connected with a lower cavity of the relay valve, a middle cavity of the relay valve is connected with the air bag through a pipeline in sequence through a manual air outlet valve, and the middle cavity and the lower cavity are separated through a sealing shoulder on the outer peripheral surface of the bottom of the relay valve core.
Preferably, the controller is electrically connected to the automatic mode switch and the height setting switch.
Preferably, an air inlet electromagnet is arranged on the upper portion of the air inlet control valve and is connected with the controller, a first through channel is arranged on the upper portion of the air inlet electromagnet, the first through channel is used for connecting the first cavity with the outside, an air inlet control valve core is axially arranged on the lower portion of the air inlet electromagnet, and a first reset spring is arranged between the air inlet control valve core and the air inlet electromagnet and is used for propping the air inlet control valve core against the top surface of the valve seat at the top end of the second through channel.
Preferably, the longitudinal section of the air inlet diaphragm is concave, the bottom surface of the air inlet diaphragm is propped against the top surface of the valve seat at the top end of the fifth channel, a lower sealing stop block is connected to the bottom surface of the air inlet diaphragm and inserted into the fifth channel, and the lower sealing stop block axially moves and can close or open a plurality of air inlets circumferentially arranged.
Preferably, an exhaust electromagnet is arranged at the top of the exhaust control valve and is connected with the controller, a third channel is arranged at the upper part of the exhaust electromagnetic valve to communicate the second chamber with the fourth chamber, an exhaust control valve core is axially arranged at the lower part of the exhaust electromagnet, a second reset spring is arranged between the exhaust electromagnet and the exhaust control valve core to push the exhaust control valve core downwards and prop against the top surface of a valve seat at the top end of the fourth channel, and the fourth channel can connect the fourth chamber with the outside.
Preferably, the exhaust valve is provided with an exhaust valve core which is vertically arranged, the bottom surface of the exhaust valve core is connected with an exhaust valve film which is clamped into the mounting groove along the edge, the exhaust valve core of the stepped shaft section is sleeved with a third reset spring, the exhaust valve film can push the short shaft at the top of the exhaust valve core to axially move along a sixth channel and separate a seventh channel, and the seventh channel is horizontally arranged and is communicated with the outside.
Preferably, the top surface of the air bag is provided with a height sensor which is connected with the controller, and the controller is also provided with a height display meter for displaying the real-time action height of the air bag.
Compared with the prior art, the technical scheme of the invention has the following advantages:
according to the technical scheme, a plurality of chambers which are separated from each other are arranged in the electromagnetic valve body, wherein the first chamber is connected with the second chamber through an air inlet control valve, the first chamber is separated from the second chamber through an air inlet diaphragm, the second chamber is connected with the fourth chamber through an air outlet control valve, the third chamber is connected with the fourth chamber through an air outlet valve, the third chamber is connected with an air bag through a pipeline, the air outlet control valve and the air outlet valve are respectively and electrically connected with a controller, the controller is also electrically connected with a mode reversing valve, and the mode reversing valve is also respectively connected with an air bottle and the second chamber through a pipeline. Meanwhile, the mode reversing valve of the technical scheme of the invention is connected with the relay valve through a parallel pipeline, a first pipeline of the parallel pipeline is connected with an upper cavity of the relay valve through a manual air inlet valve, a second pipeline of the parallel pipeline is connected with a lower cavity of the relay valve, a middle cavity of the relay valve is sequentially connected with the manual air outlet valve and the air bag through a pipeline, and the middle cavity and the lower cavity are separated through a sealing stop block on the outer peripheral surface of the bottom of the relay valve core. Therefore, the technical scheme of the invention can rapidly adjust the air bag pressure and the inflation amount of the vehicle by adopting an automatic mode or a manual mode, so that the invention has better convenience and working reliability compared with the prior art.
In addition, the technical scheme of the invention uses the single integrated valve body to jointly realize automatic control of inflation, air retention and exhaust, so that the technical scheme of the invention has more abundant functions compared with the prior art, and the air bag action height of the vehicle is adjusted adaptively.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a height adjustment device for an air bag of a vehicle according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a partial enlarged view at B in fig. 1.
Reference numerals illustrate:
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides a vehicle airbag height adjusting device.
Referring to fig. 1 to 3, the vehicle airbag height adjusting device according to the embodiment of the invention mainly includes an electromagnetic valve body 1, wherein a first chamber 11, a second chamber 12, a third chamber 13 and a fourth chamber 14 formed by mutually separating are provided inside the electromagnetic valve body 1, wherein the first chamber 11 and the second chamber 12 of the embodiment are connected through an air intake control valve 2, and an air intake diaphragm 4 is further provided on the right side of the first chamber 11 and the right side of the second chamber 12 to separate the first chamber 11 and the second chamber 12. The second chamber 12 and the fourth chamber 14 are connected through an exhaust control valve 33, in addition, the third chamber 13 and the fourth chamber 14 are further connected through an exhaust valve 5, while the third chamber 13 is directly connected with the air bag 9 through a pipeline, the exhaust control valve 3 and the exhaust valve 5 of the embodiment are respectively electrically connected with the controller 6, the controller 3 is electrically connected with a mode reversing valve 64, and the mode reversing valve 64 is further connected with the second chamber 12 and the air bottle 8 through a pipeline, wherein the controller of the embodiment can use a PLC control circuit module.
To realize manual control of the vehicle air bag height adjusting device of the present embodiment, the mode switching valve 64 of the present embodiment is connected to the relay valve 7 through a parallel pipeline, a first pipeline 65 of the parallel pipeline is connected to an upper chamber 71 of the relay valve 7 through a manual air inlet valve 67, a second pipeline 66 of the parallel pipeline is connected to a lower chamber 74 of the relay valve 7, a middle chamber 73 of the relay valve 7 is connected to the air bag 9 through a pipeline in sequence, and the middle chamber 73 and the lower chamber 74 are separated by a sealing shoulder 721 on the outer peripheral surface of the bottom of the relay valve core 72.
The controller 6 of the present embodiment is also electrically connected to an automatic mode switch 62 and a height setting switch 61, so that an automatic control mode can be selected by the automatic mode switch 62, and the height of the air bag in different modes can be set by the height setting switch 61.
Preferably, the upper portion of the air intake control valve 2 of the present embodiment is provided with an air intake electromagnet 21 connected with the controller 6, the upper portion of the air intake electromagnet 21 is provided with a first through channel 101, the first channel 101 connects the first chamber 11 with the outside, the lower portion of the air intake electromagnet 21 is axially provided with an air intake control valve core 22, and a first return spring 23 is arranged between the air intake control valve core 22 and the air intake electromagnet 21 to support the air intake control valve core 22 against the top surface of the valve seat at the top end of the second channel 102. The longitudinal section of the air intake diaphragm 4 in this embodiment is concave, so that the air intake diaphragm 4 has a certain direction in stress, the bottom surface of the air intake diaphragm 4 abuts against the top surface of the valve seat at the top end of the fifth channel 105, meanwhile, the bottom surface of the air intake diaphragm 4 is further connected with a lower sealing stop 41 inserted into the fifth channel 105, and the lower sealing stop 41 moves axially and can close or open a plurality of air inlets 1051 circumferentially arranged.
The top of the exhaust control valve 3 in this embodiment is provided with an exhaust electromagnet 31 connected to the controller 6, the upper part of the exhaust electromagnetic valve 31 is provided with a third channel 103 to connect the second chamber 12 and the fourth chamber 14, the lower part of the exhaust electromagnet 31 is axially provided with an exhaust control valve core 33, a second return spring 32 is arranged between the exhaust electromagnet 31 and the exhaust control valve core 33 to push the exhaust control valve core 33 downward and against the top surface of the valve seat at the top end of the fourth channel 104, and the fourth channel 104 can connect the fourth chamber 14 with the outside. The exhaust valve 5 is provided with an exhaust valve core 52 which is vertically arranged, the bottom surface of the exhaust valve core 52 is connected with an exhaust valve film 54 of which the edge is clamped into the mounting groove, the exhaust valve core 52 of the stepped shaft section is sleeved with a third reset spring 53, the exhaust valve film 53 can push a short shaft 521 at the top of the exhaust valve core 52 to axially move along a sixth channel 106 and separate a seventh channel 107, and the seventh channel 107 is horizontally arranged and communicated with the outside.
The top surface of the air bag 9 of the embodiment is provided with a height sensor 91 connected with the controller 6, and the controller 6 is also provided with a height display table 61 for displaying the real-time action height of the air bag 6, so that a user can conveniently know and adjust the actual action height of the air bag 9 in time.
Referring to fig. 1 to 3, the vehicle airbag height adjusting device of the present embodiment operates according to the following principle:
when the automatic mode switch 62 is pressed, the controller 6 controls the mode switching valve 64 to be powered on and enables the mode switching valve 64 to be in the lower station, and at the moment, the working state of the vehicle air bag height adjusting device is the automatic mode, and compressed air in the air bottle 8 directly enters the second chamber 12 after passing through the lower station of the mode switching valve 64 after coming out of the air bottle 8.
If the height of the air bag 9 is too low at this time, the air bag 9 needs to be inflated, firstly, the air inlet electromagnet 21 of the air inlet control valve 2 is in a power-off state, the air inlet control valve core 22 is pressed against the top surface of the valve seat at the top end of the second channel 102 under the downward pushing action of the first return spring 23, so that the second channel 102 is closed, and in addition, a certain gap exists between the top of the air inlet control valve core 22 and the bottom end of the first channel 101, so that the first chamber 11 is communicated with the external atmosphere. After the compressed air enters the second chamber 12, because the air intake diaphragm 4 is an elastically deformable component, the compressed air can push the air intake diaphragm 4 to move upwards, so that the lower sealing stop block 41 moves upwards along with the corresponding air intake diaphragm 4 and does not seal the air inlet 1051 any more, the compressed air in the second chamber 12 can enter the third chamber 13 through the air inlet 1051, and in addition, the compressed air enters the air bag 9 through a pipeline directly connected with the air bag 9 through the third chamber 13, so that the air bag 9 is lifted up highly. Meanwhile, since the exhaust electromagnet 31 of the exhaust control valve 3 is de-energized at this time, the exhaust control valve spool 33 is acted downward by the second return spring 32 and closes the valve seat top at the top end of the fourth passage 104, so that the fourth chamber 14 cannot be connected to the outside atmosphere through the fourth passage 104, compressed air enters into the fourth chamber 14 through the gap between the exhaust control valve spool 33 and the third passage 103, and the compressed air pushes the exhaust valve film 54 upward, while the exhaust valve core 52 is upward along with the exhaust valve film 54, so that the short shaft 521 at the top end of the exhaust valve core 52 cuts off the sixth passage 106 and the seventh passage 107, so that the compressed air can only inflate the air bag 9, and eventually the air bag 9 rises in height up to a preset height.
Along with the continuous rising of the action height of the air bag 9, when the air bag 9 reaches the height of the set position, the controller 6 controls the air inlet electromagnet 21 to be electrified, the air inlet electromagnet 21 adsorbs the air inlet control valve core 22, the air inlet control valve 22 core overcomes the action of the first reset spring 23 to be upward, thus the first channel 101 can be closed, the air inlet control valve core 22 releases the sealing of the top surface of the valve seat at the top end of the second channel 102, and compressed air can enter the first chamber 11 from the second channel 102. Since the longitudinal section of the intake diaphragm 4 of the present embodiment is concave, it is apparent that the surface area of the top surface of the intake diaphragm 4 is larger than the surface area of the bottom surface thereof, and accordingly, the pressure of the compressed air on the upper surface of the intake diaphragm 4 is larger than the pressure obtained on the lower surface, the intake diaphragm 4 is elastically deformed downward to seal the top surface of the valve seat at the top end of the fifth passage, and at the same time, the lower seal stopper 41 is also moved downward axially to seal the intake hole 1051, that is, the fifth passage 105 is also sealed, thereby separating the second chamber 12 from the third chamber 13. At this time, the exhaust electromagnet 31 is deenergized, and thus the exhaust control spool 33 is still in the lower initial position, so that the fourth passage 104 is opened and the third passage 103 is closed. Compressed air enters the fourth chamber 14 through the fourth channel 104, the exhaust valve film 54 is pushed upwards by the compressed air, the exhaust valve core 52 is upwards along with the exhaust valve film 54, so that the short shaft 521 at the top end of the exhaust valve core 52 is upwards to close the sixth channel 106 and the seventh channel 107, and finally, the third chamber 13 and the air bag 9 are in a fully closed air-retaining state together, so that the working height of the air bag 9 is kept unchanged. Then, the air intake electromagnet 21 is controlled to lose electricity by the controller 6, so that after the air intake control valve core 22 loses adsorption, the air intake control valve core is pressed downwards by the first return spring 23 and returns to the initial position, the second passage 102 is closed and the first passage 101 is opened, so that compressed air can only be discharged outwards from the first passage 101 to the outside atmosphere, and the air bag 9 is kept at a stable working height.
When the load on the vehicle is small and the amount of gas to be charged into the air bag 9 is excessive, the air bag 9 needs to be deflated, and when the controller 6 determines that the air bag height is too high after the height sensor 91 transmits the detected air bag height value to the controller 6, the air bag 9 needs to be deflated to reduce the height. First, the controller 6 controls the air intake electromagnet 21 to be powered, the top surface area of the air intake diaphragm 4 is larger than the bottom surface area thereof, and the lower seal stopper 41 of the air intake diaphragm 4 moves down and is kept at the lowest position to keep the air intake hole 1051 closed. The exhaust electromagnet 31 is powered, the exhaust control valve core 33 is attracted and upward against the second return spring 32, the third passage 103 is closed by the exhaust control valve core 33, and the fourth passage 104 is opened, so that the compressed air in the fourth chamber 14 is discharged to the outside atmosphere through the fourth passage 104. As the pressure in the fourth chamber 14 gradually decreases, the third return spring 53, which is fitted around the outer circumferential surface of the exhaust valve core 52, pushes the exhaust valve core 52 to move downward, and at this time, the sixth passage 106 and the seventh passage 107 communicate with each other, and the compressed air in the air bag 9 is discharged to the outside atmosphere through the passage communicating with the sixth passage 106 and the seventh passage 107, so that the working height of the air bag 9 gradually decreases. It should be noted that, the bottom surface of the exhaust valve core 52 of this embodiment is connected to the exhaust valve film 54, and the peripheral edge of the exhaust valve film 54 is connected to the solenoid valve body 1, so that by setting the exhaust valve film 54 as an elastic member, a good sealing effect can be achieved on the edge of the exhaust valve 5, and the exhaust valve core 52 can be effectively ensured not to be completely loosened from the installation position in the descending process, so that the dual functions of positioning and sealing can be effectively achieved, and in addition, a limiting block 51 can be provided under the exhaust valve film 54 to effectively define the lower limit position of the exhaust valve core 52.
When the vehicle air bag height adjusting device of the present embodiment operates in the manual mode, the automatic mode switch 62 is in the non-on state, and the controller 6 controls the mode switching valve 64 to be powered off, so that the mode switching valve 64 is in the upper station after being powered off, and compressed air in the air bottle 8 passes through the mode switching valve 64 and enters the parallel pipeline, wherein the compressed air enters the manual air inlet valve 67 through the first pipeline 65 and enters the lower cavity 74 of the relay valve 7 through the second pipeline 66.
When the manual air inlet valve 67 is controlled to be in an upper working position and the manual air outlet valve 68 is operated to be in an upper working position when the air bag 9 is required to be inflated in a manual mode, compressed air can enter the upper cavity 71 of the relay valve 7 through the first pipeline 65 and then push the relay valve core 72 to overcome the fourth return spring 75 and move downwards, along with the continuous downward movement of the relay valve core 72, a sealing shoulder 721 which is arranged on the lower peripheral surface of the lower part of the relay valve core 72 and originally seals the middle cavity 73 and the lower cavity 74 is used for sealing the middle cavity 73 and the lower cavity 74, so that compressed air entering the lower cavity 74 through the second pipeline 66 enters the middle cavity 73, and the middle cavity 73 is directly connected with the air bag 9 through the manual air outlet valve 68, therefore, the compressed air enters the air bag 9 through the manual air outlet valve 68 and is directly inflated, and in addition, an operator can observe the inflation height of the air bag 9 in real time through a height display table 63 connected with the controller 6 so as to respond.
In the manual mode, after the air bag 9 is inflated, the manual air inlet valve 67 needs to be manually operated to move down to the lower station, compressed air in the upper cavity 71 of the relay valve 7 is discharged to the outside atmosphere through the air outlet hole of the lower station of the manual air inlet valve 67, the relay valve core 72 is reset and moves upwards under the action of the fourth reset spring 75 along with the gradual decrease of the internal pressure of the upper cavity 71, the middle cavity 73 and the lower cavity 74 are sealed again through the sealing shoulder 721 of the relay valve core 72, and finally the air bag 9 is inflated by interrupting the second pipeline 102.
When the air bag 9 is deflated in the manual mode, the manual air inlet valve 67 is controlled to the lower station, and the manual air outlet valve 68 is simultaneously operated to the lower station, so that compressed air in the air bag 9 is discharged to the outside atmosphere through the air outlet hole of the lower station of the manual air outlet valve 68, the air bag 9 is deflated conveniently, and meanwhile, an operator can observe and judge the height of the air bag in time through the height display table 63 so as to respond.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the specification and drawings of the present invention or direct/indirect application in other related technical fields are included in the scope of the present invention.
Claims (6)
1. The vehicle air bag height adjusting device is characterized by comprising an electromagnetic valve body, wherein a first chamber, a second chamber, a third chamber and a fourth chamber which are mutually separated are arranged in the electromagnetic valve body, the first chamber is connected with the second chamber through an air inlet control valve, the first chamber is also separated from the second chamber through an air inlet diaphragm, the second chamber is connected with the fourth chamber through an air outlet control valve, the third chamber is connected with an air bag through an air outlet valve, the third chamber is connected with the air bag through a pipeline, the air outlet control valve and the air outlet valve are respectively and electrically connected with a controller, the controller is also electrically connected with a mode reversing valve, and the mode reversing valve is also respectively connected with an air bottle and the second chamber through a pipeline;
an air inlet electromagnet is arranged at the upper part of the air inlet control valve and is connected with the controller, a first through channel is arranged at the upper part of the air inlet electromagnet, the first channel connects the first chamber with the outside, an air inlet control valve core is axially arranged at the lower part of the air inlet electromagnet, a first reset spring is arranged between the air inlet control valve core and the air inlet electromagnet to enable the air inlet control valve core to prop against the top surface of a valve seat at the top end of a second channel, and the second channel is communicated with the second chamber;
the longitudinal section of the air inlet diaphragm is concave, the bottom surface of the air inlet diaphragm is propped against the top surface of the valve seat at the top end of the fifth channel, the bottom surface of the air inlet diaphragm is also connected with a lower sealing stop block which is inserted into the fifth channel, the lower sealing stop block axially moves and can close or open a plurality of air inlets circumferentially arranged, and the fifth channel is communicated with the third chamber.
2. The vehicle airbag height adjusting apparatus according to claim 1, wherein the mode switching valve is connected to the relay valve through a parallel pipe, a first pipe of the parallel pipe is connected to an upper chamber of the relay valve through a manual intake valve, a second pipe of the parallel pipe is connected to a lower chamber of the relay valve, a middle chamber of the relay valve is connected to the airbag through a pipe in sequence, and the middle chamber and the lower chamber are separated by a sealing shoulder on an outer peripheral surface of a bottom of the relay valve element.
3. The vehicle airbag height adjustment device according to claim 2, wherein the controller is electrically connected to an automatic mode switch and a height setting switch.
4. The vehicle airbag height adjusting device according to claim 1, wherein an exhaust electromagnet is arranged at the top of the exhaust control valve and is connected with the controller, a third channel is arranged at the upper part of the exhaust electromagnet to communicate the second chamber with the fourth chamber, an exhaust control valve core is axially arranged at the lower part of the exhaust electromagnet, a second return spring is arranged between the exhaust electromagnet and the exhaust control valve core to push the exhaust control valve core downwards and prop against the top surface of a valve seat at the top end of the fourth channel, and the fourth channel can connect the fourth chamber with the outside.
5. The vehicle airbag height adjusting device according to claim 4, wherein the exhaust valve is provided with an exhaust valve core which is vertically arranged, the bottom surface of the exhaust valve core is connected with an exhaust valve film of which the edge is clamped into the mounting groove, the exhaust valve core of the stepped shaft section is sleeved with a third reset spring, the exhaust valve film can push a short shaft at the top of the exhaust valve core to axially move along a sixth channel and separate a seventh channel, and the seventh channel is horizontally arranged and communicated with the outside.
6. The vehicle airbag height adjusting apparatus according to claim 5, wherein the airbag top surface is provided with a height sensor connected to the controller, and the controller is further provided with a height display meter for displaying the real-time operation height of the airbag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811471621.2A CN109466267B (en) | 2018-12-04 | 2018-12-04 | Vehicle air bag height adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811471621.2A CN109466267B (en) | 2018-12-04 | 2018-12-04 | Vehicle air bag height adjusting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109466267A CN109466267A (en) | 2019-03-15 |
| CN109466267B true CN109466267B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811471621.2A Active CN109466267B (en) | 2018-12-04 | 2018-12-04 | Vehicle air bag height adjusting device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112983914B (en) * | 2021-03-01 | 2023-11-07 | 安路普（北京）汽车技术有限公司 | Seat height control valve and automobile seat base |
| CN115817094B (en) * | 2022-11-16 | 2024-05-03 | 一汽解放汽车有限公司 | Air spring air pressure control method, device, computer equipment and storage medium |
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