CN109555881A - A kind of overflow pressure relief spool, overflow pressure relief valve and overflow pressure relief system - Google Patents
A kind of overflow pressure relief spool, overflow pressure relief valve and overflow pressure relief system Download PDFInfo
- Publication number
- CN109555881A CN109555881A CN201811415898.3A CN201811415898A CN109555881A CN 109555881 A CN109555881 A CN 109555881A CN 201811415898 A CN201811415898 A CN 201811415898A CN 109555881 A CN109555881 A CN 109555881A
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- Prior art keywords
- pressure relief
- overflow pressure
- overflow
- valve
- longitudinal direction
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 39
- 238000007789 sealing Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 239000010425 asbestos Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 abstract description 10
- 230000030279 gene silencing Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 18
- 238000013461 design Methods 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009972 noncorrosive effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a kind of overflow pressure relief spool, overflow pressure relief valve and overflow pressure relief systems.The overflow pressure relief spool includes a mandrel and a rubber spring, which includes longitudinal direction portion and transverse part, and the longitudinal direction portion runs through or not through the transverse part；If the longitudinal direction portion, through the transverse part, the rubber spring is sheathed on the longitudinal direction portion and elastic top is butted on the surface of the transverse part；If the longitudinal direction portion is not through the transverse part, the rubber spring is set to the surface of the transverse part opposite with the longitudinal direction portion, alternatively, the rubber spring is sheathed on the longitudinal direction portion and elastic top is butted on the surface of the transverse part.The present invention can directly completely eliminate the noise as caused by gas high-frequency vibration in pressure leak process, not need in addition increasing the additional components such as silencing cotton, muffler.
Description
Technical field
The present invention relates to air bag inflator technical fields, and in particular to a kind of overflow pressure relief spool, overflow pressure relief valve and overflow
Pressure relief system.
Background technique
Currently, air bag system is widely applied in field of automobile seats, control airbag on the one hand can be passed through
Degrees of expansion promotes the comfort level that human body leans on, such as the corresponding site of seat is arranged in using as headrest, waist branch in airbag
Support, shoulder support etc.；On the other hand it can be realized by the frequency that rises of disappearing of control airbag to the massage functions of human body.
Commercial vehicle having air source, bleed pressure range are 0.8MPa to 1.0MPa；Support, the massage airbag work of seat
Pressure limit is 0.04MPa to 0.06MPa；It can be seen that the vehicle-mounted bleed pressure of commercial vehicle is far longer than support airbag and massage airbag
Ability to bear, directly will will lead to airbag explosion to air bag inflator using the vehicle-mounted gas source of commercial vehicle.Therefore, commercialization is being utilized
When the vehicle-mounted gas source of vehicle is to air bag inflator, need to be depressured by relief valve or pressure reducing valve.
Existing relief valve is all to reach vent pressure by adjusting the compressing force size of spring using spring structure
Size setting；It is resonated due to caused by the high-frequency vibration of air-flow, relief valve can all issue ear-piercing cry when pressure release works, and lead to
Cross the optional equipments such as installation silencing cotton, muffler, can only part elimination reduce noise, noise, Er Qieyou cannot be completely eliminated
In increasing component, the volume of relief valve is not only increased, and increases the production cost of relief valve.
Summary of the invention
In view of the above problems, it proposes on the present invention overcomes the above problem or at least be partially solved in order to provide one kind
State a kind of overflow pressure relief spool, overflow pressure relief valve and the overflow pressure relief system of problem.
According to one aspect of the present invention, a kind of overflow pressure relief spool is provided, which includes a mandrel
With a rubber spring, which includes longitudinal direction portion and transverse part, and the longitudinal direction portion runs through or not through the transverse part；
If the longitudinal direction portion, through the transverse part, the rubber spring is sheathed on the longitudinal direction portion and elastic top is supported
In the surface of the transverse part；
If the longitudinal direction portion is not through the transverse part, the rubber spring is set to the cross opposite with the longitudinal direction portion
To the surface in portion, alternatively, the rubber spring is sheathed on the longitudinal direction portion and elastic top is butted on the surface of the transverse part.
Optionally, the overflow pressure relief spool further includes gasket, and the gasket is set to oppose with the rubber spring
The transverse part surface；
If the longitudinal direction portion, through the transverse part, the gasket is sheathed on the longitudinal direction portion；
If the longitudinal direction portion is not through the transverse part, the gasket is sheathed on the longitudinal direction portion, alternatively, described
Gasket is set to the surface of the transverse part opposite with the longitudinal direction portion.
Optionally, the gasket includes rubber pad, plastic mattress, fiber mat and asbestos pad.
Optionally, the length of the rubber spring, diameter and shape are corresponding with required vent pressure size.
According to another aspect of the invention, a kind of overflow pressure relief valve is provided, which includes pedestal, upper cover
With above-mentioned overflow pressure relief spool；
The pedestal is connected to air inlet pipeline, which is equipped at least one air inlet being connected to air inlet pipeline；
The upper cover is connected to pedestal, and the outboard end of the upper cover is equipped at least one venthole being connected to outside atmosphere；
The pedestal is equipped with the first guide chute that a corresponding overflow pressure relief spool longitudinal direction portion extends, and/or, institute
State the second guide chute that lid extends equipped with a corresponding overflow pressure relief spool longitudinal direction portion；First guide chute and
There is a certain distance between second guide chute；
The overflow pressure relief spool is arranged between the pedestal and the upper cover, the mandrel of the overflow pressure relief spool
It is slided in first guide chute and/or second guide chute in longitudinal portion；
The rubber spring of the overflow pressure relief spool is sheathed on the longitudinal direction portion and elastic top is butted on the table of the transverse part
Between face and the end of second guide chute, alternatively, the rubber spring elastic top of the overflow pressure relief spool be butted on it is described
Between the surface of transverse part and the support portion of the upper cover；
Longitudinal portion of the mandrel, the transverse part of the mandrel and the pedestal constitute gas held chamber.
Preferably, the gasket of the overflow pressure relief spool covers the air inlet of the pedestal.
Preferably, the outboard end of the pedestal is equipped with groove, and the groove is for installing the gas prevented in air inlet pipeline
In the sealing ring that overflow pressure relief valve installation place is overflowed.
Another aspect according to the present invention provides a kind of overflow pressure relief system, which includes vehicle-mounted
Gas source, above-mentioned overflow pressure relief valve and at least one switch valve and at least one airbag；The air inlet of the switch valve connects institute
Vehicle-mounted gas source is stated, the gas outlet of the switch valve connects the air inlet of the airbag；The overflow pressure relief valve is installed in parallel in institute
It states in the gas circuit between the gas outlet of switch valve and the air inlet of the airbag；
When the switch valve is opened, the vehicle-mounted source gas is first into the air accommodating chamber of overflow pressure relief valve；
If the air pressure of the vehicle-mounted gas source is higher than rubber spring corresponding pressure value in overflow pressure relief valve, the overflow pressure relief spool
Mandrel move up, the overflow port of overflow pressure relief valve is opened, and the portion gas beyond oil pressure relief passes through overflow pressure relief valve
Venthole overflows, and remaining gas enters the airbag.
Preferably, the overflow pressure relief system further includes at least one support valve and/or massage valve；The overflow pressure relief valve
It is installed in parallel in the gas circuit between the air inlet of the gas outlet of the switch valve and the support valve and/or the massage valve；
The gas outlet of the support valve and/or the gas outlet of the massage valve connect the air inlet of the airbag；When the switch valve is beaten
When opening, the vehicle-mounted source gas is first into the air accommodating chamber of overflow pressure relief valve；If the air pressure of the vehicle-mounted gas source
Higher than rubber spring corresponding pressure value in overflow pressure relief valve, then the mandrel of the overflow pressure relief spool moves up, and overflow is let out
The overflow port of pressure valve is opened, and the portion gas beyond oil pressure relief is overflowed by the venthole of overflow pressure relief valve, remaining gas
Enter airbag by the support valve and/or the massage valve.
Preferably, the overflow pressure relief system further includes the first overflow passage and/or the second overflow passage；
The gas that the overflow pressure relief valve overflow goes out can be combined by any one following mode or several ways
Mode handled: direct emission is in the car；It is discharged outside vehicle by first overflow passage；Pass through second overflow pipe
Road is delivered in the ventilating system of seat cushion or backrest.
Preferably, the overflow pressure relief system further include: the center processor, for sending a control signal to described open
Close valve, the support valve and/or the massage valve, control the switch valve, the support valve and/or massage valve opening or
It closes.
The beneficial effects of the present invention are: the claimed technical solution of the present invention applies the core with transverse part, longitudinal direction portion
The structure of axis and rubber spring design overflow pressure relief spool, enables those skilled in the art that the overflow pressure relief spool is relied on to set
Overflow pressure relief valve is counted, gas when realizing that the gas atmosphere in gas circuit is greater than pressure value corresponding to rubber spring, in gas circuit
Push mandrel overflow pressure relief poppet shaft mobile to upper cover direction, so that being greater than the gas of pressure value corresponding to rubber spring
It is overflowed from the venthole of upper cover, can directly completely eliminate the noise as caused by gas high-frequency vibration in pressure leak process, no
Need in addition increasing silencing cotton, the additional components such as muffler, compared with the prior art in must borrow and install silencing cotton, noise reduction additional
The optional equipments such as device eliminate noise, and the present invention not only reduces the volume of overflow pressure relief valve, and reduces overflow pressure relief valve
Production cost.In addition, elastic gum upsetting waterproof, non-corrosive is corrosion-resistant, without separately making antirust treatment, ensure that overflow pressure relief valve
Use life cycle.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it is implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can be more
It becomes apparent, the followings are specific embodiments of the present invention.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 shows the stereo appearance figure of one of according to an embodiment of the present invention overflow pressure relief spool；
Fig. 2 shows the three-dimensional appearance exploded views of one of according to an embodiment of the present invention overflow pressure relief spool；
Fig. 3 shows the structure chart of one of according to an embodiment of the present invention overflow pressure relief spool mandrel；
Fig. 4 shows the stereo appearance figure of another overflow pressure relief spool according to an embodiment of the present invention；
Fig. 5 shows the three-dimensional appearance exploded view of another overflow pressure relief spool according to an embodiment of the present invention；
Fig. 6 shows the stereo appearance figure of another overflow pressure relief spool according to an embodiment of the present invention；
Fig. 7 shows the three-dimensional appearance exploded view of another overflow pressure relief spool according to an embodiment of the present invention；
Fig. 8 shows the stereo appearance figure of one of according to an embodiment of the present invention overflow pressure relief valve；
Fig. 9 shows the three-dimensional appearance exploded view of one of according to an embodiment of the present invention overflow pressure relief valve；
Figure 10 shows the structural exploded view of one of according to an embodiment of the present invention overflow pressure relief valve；
Figure 11 shows one of according to an embodiment of the present invention overflow pressure relief spool closing overflow pressure relief valve air inlet
The structural schematic diagram of mouth；
Figure 12 shows one of according to an embodiment of the present invention overflow pressure relief spool and opens the air inlet of overflow pressure relief valve
The structural schematic diagram of mouth；
Figure 13 show another overflow pressure relief spool according to an embodiment of the present invention close overflow pressure relief valve into
The structural schematic diagram of port；
Figure 14 show another overflow pressure relief spool according to an embodiment of the present invention open overflow pressure relief valve into
The structural schematic diagram of port；
Figure 15 show another overflow pressure relief spool according to an embodiment of the present invention close overflow pressure relief valve into
The structural schematic diagram of port；
Figure 16 show another overflow pressure relief spool according to an embodiment of the present invention open overflow pressure relief valve into
The structural schematic diagram of port；
Figure 17 shows the schematic diagrames of one of according to an embodiment of the present invention overflow pressure relief system；
Figure 18 shows the schematic diagram of another overflow pressure relief system according to an embodiment of the present invention；
Figure 19 shows the schematic diagram of another overflow pressure relief system according to an embodiment of the present invention；
Description of symbols: 1, upper cover；2, pedestal；3, groove；4, gasket；5, mandrel；6, rubber spring；7, air holds
Receive chamber；8, sealing ring；9, the first guide chute；10, the second guide chute；101, upper cover support portion；201, pedestal support portion；
501, longitudinal direction portion；502, transverse part；100, overflow pressure relief spool；200, overflow pressure relief valve；300, overflow pressure relief system.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that realize the disclosure without should be by embodiments set forth here institute in a variety of manners
Limitation.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be complete by the scope of the present disclosure
Whole is communicated to those skilled in the art.
Embodiment one:
A kind of overflow pressure relief spool is claimed in the present embodiment, and Fig. 1 shows one according to an embodiment of the present invention
The stereo appearance figure of kind of overflow pressure relief spool, Fig. 2 shows one of according to an embodiment of the present invention overflow pressure relief spools
Three-dimensional appearance exploded view, as shown in Figs. 1-2, the overflow pressure relief spool 100 include a mandrel 5 and a rubber spring 6, the mandrel
5 include longitudinal direction portion 501 and transverse part 502, longitudinal portion 501 and transverse part 502 there are mainly two types of design structure:
(1) transverse part 502 is run through in longitudinal direction portion 501
As shown in Fig. 2, the top 501_1 and lower part 501_2 in longitudinal portion 501 were both when transverse part 502 is run through in longitudinal direction portion 501
Can on the same axis, it can not also on the same axis as shown in Figure 3.That is, as shown in Fig. 2, when longitudinal direction portion 501
Top 501_1 and lower part 501_2 on the same axis when, longitudinal portion 501 is extended vertically through in transverse part 502.If longitudinal direction portion 501
Through transverse part 502, then rubber spring set 3 is set to the longitudinal direction portion 501 and elastic top is butted on the surface of the transverse part 502.
(2) transverse part 502 is not run through in longitudinal direction portion 501
Fig. 4 shows the stereo appearance figure of another overflow pressure relief spool according to an embodiment of the present invention, and Fig. 5 shows
The three-dimensional appearance exploded view of another overflow pressure relief spool according to an embodiment of the present invention is gone out, Fig. 6 shows basis
The stereo appearance figure of another overflow pressure relief spool in one embodiment of the invention, Fig. 7 show a reality according to the present invention
The three-dimensional appearance exploded view of another overflow pressure relief spool in example is applied, as shown in figs. 4-7, transverse part is not run through in longitudinal portion 501
When 502, there are two types of set-up modes for rubber spring 6, and first way is: as illustrated in figures 4-5, rubber spring 6 is set to and the longitudinal direction
The surface of the opposite transverse part 502 in portion 501, for example, by rubber bullet in the way of adhesive bonding or in the way of circle stake is fixed etc.
Spring 6 is fixed on the surface of the transverse part 502 opposite with longitudinal direction portion 501；The second way is: as shown in fig. 6-7, rubber spring 6
It is sheathed on longitudinal portion 501 and elastic top is butted on the surface of the transverse part 502.
It should be noted that the length of the rubber spring 6, diameter and shape are corresponding with required vent pressure size,
Length, diameter and the shape of rubber spring 6 can be adjusted according to the demand of vent pressure size, to realize different under different situations
The demand of vent pressure.
Preferably, in order to enhance the airtightness of overflow pressure relief valve, still as shown in Figure 1, the overflow pressure relief spool 100 further includes
Gasket 4, the gasket 4 are set to the surface of the transverse part 502 to oppose with rubber spring 6, that is to say, that gasket 4 and rubber
Spring 6 is set to the two sides of transverse part 502.If longitudinal direction portion 501 is distinguished through transverse part 502, rubber spring 6 and gasket 4
Relatively it is sheathed on longitudinal portion 501；If longitudinal direction portion 501, not through transverse part 502, gasket 4 is there are two types of set-up mode, the
A kind of mode is: as illustrated in figures 4-5, gasket 4 is sheathed on longitudinal portion 501, and under this mode, rubber spring 6 is set to and indulges
The surface of the transverse part 502 opposite to portion 501；The second way is: as shown in fig. 6-7, gasket 4 is set to and longitudinal portion 501
The surface of the opposite transverse part 502, it should be noted that gasket 4 can be by way of adhesive bonding or circle stake is solid
The modes such as fixed are fixed on the surface of transverse part 502, and under this mode, rubber spring 6 is sheathed on longitudinal portion 501.In practical application
In, can select a kind of mode of any of the above that gasket is set according to actual needs, the application to the setting position of gasket and
Mode is not further qualified.
By Fig. 1-7 it is found that the claimed technical solution of the present invention, which is applied, has transverse part, the mandrel in longitudinal direction portion and rubber
Glue spring designs the structure of overflow pressure relief spool, and those skilled in the art is enabled to rely on the overflow pressure relief spool design overflow
Relief valve, gas push core when realizing that the gas atmosphere in gas circuit is greater than pressure value corresponding to rubber spring, in gas circuit
Axis overflow pressure relief poppet shaft is mobile to upper cover direction, so that being greater than the gas of pressure value corresponding to rubber spring from upper cover
Venthole overflow, can directly completely eliminate the noise as caused by gas high-frequency vibration in pressure leak process, not need
In addition increase silencing cotton, the additional components such as muffler, compared with the prior art in must borrow that install silencing cotton, muffler etc. additional attached
Oil (gas) filling device eliminates noise, and the present invention not only reduces the volume of overflow pressure relief valve, and reduces being produced into for overflow pressure relief valve
This.In addition, elastic gum upsetting waterproof, non-corrosive is corrosion-resistant, without separately making antirust treatment, ensure that the use of overflow pressure relief valve is raw
Order the period.
It should be noted that above-mentioned gasket 4 includes rubber pad, plastic mattress, fiber mat and asbestos pad, gas pressure is prevented
It is overflowed under normal circumstances from overflow pressure relief spool, to enhance the airtightness of overflow pressure relief valve.
It should also be noted that, rubber spring 6 uses hollow cylindrical structure in the present embodiment, in other embodiments,
The cylindrical structure of solid construction can also be used.In addition, the shape of rubber spring is not limited to cylindrical structure, tower also can be used
Shape, cydariform, taper, helical structure, the present invention are not further limited the shape of rubber spring.
Embodiment two:
Fig. 8 shows the stereo appearance figure of one of according to an embodiment of the present invention overflow pressure relief valve, and Fig. 9 is shown
One of the according to an embodiment of the present invention three-dimensional appearance exploded view of overflow pressure relief valve, Figure 10 show according to the present invention one
The structural exploded view of one of a embodiment overflow pressure relief valve, Figure 11 are shown one of according to an embodiment of the present invention
Overflow pressure relief spool closes the structural schematic diagram of overflow pressure relief valve air inlet, and Figure 12 is shown according to an embodiment of the present invention
A kind of overflow pressure relief spool open overflow pressure relief valve air inlet structural schematic diagram, as illustrated in figs. 8-12, the overflow pressure relief valve
200 include pedestal 2, upper cover 1 and such as claimed overflow pressure relief spool 100 of embodiment one；Pedestal 2 and air inlet pipeline connect
Logical, which is equipped at least one air inlet being connected to air inlet pipeline；Upper cover 1 is connected to pedestal 2, for example, use clamping,
The modes such as buckle or magnet absorption link together upper cover 1 and pedestal 2.The outboard end of the upper cover 1 be equipped at least one with
The venthole of outside atmosphere connection；The overflow pressure relief spool 100 is arranged between pedestal 2 and upper cover 1.The overflow pressure relief spool
Longitudinal portion 501, transverse part 502 and the pedestal 2 of 100 mandrel 5 constitute gas held chamber 7.The gas held chamber 7 is in gas circuit
Gas plays the role of unhurried current, to carry out sufficient pressure detecting to the gas in gas circuit, to promote overflow pressure relief valve
Operating accuracy.
It should be known that the unloading pressure relief valve core 100 of corresponding different structure, pedestal 2 and upper cover 1 are respectively equipped with different knots
Structure is explained the structure of pedestal 2 and upper cover 1 below for the overflow pressure relief spool 100 of different structure:
The first structure, as shown in figure 11, when longitudinal portion 501 of overflow pressure relief spool 100 is through transverse part 501,
Pedestal 2 is equipped with the first guide chute 9 of the top extension in a corresponding 100 longitudinal direction portion 501 of overflow pressure relief spool, on pedestal 2
It is additionally provided with support portion 201, transverse part 502 of the support portion 201 to support overflow spool, upper cover 2 is equipped with corresponding this and overflows
Flow the second guide chute 10 that the lower part in 100 longitudinal direction portion 501 of pressure releasing valve core extends, the first guide chute 9 and the second guide chute
There is a certain distance, longitudinal portion 501 of the mandrel 5 of overflow pressure relief spool 100 is led in the first guide chute 9 and second between 10
It is slided into sliding slot 10, the transverse part 502 of the mandrel 5 of overflow pressure relief spool 100 is in the first guide chute 9 and the second guide chute
It is mobile among 10.Further, as shown in figure 11, when the gas atmosphere in gas circuit is not greater than pressure value corresponding to rubber spring
When, the rubber spring 6 of the overflow pressure relief spool 100 is sheathed on the lower part in the longitudinal direction portion 501 and elastic top is butted on transverse part 502
Between surface and the end of the second guide chute 10, gasket 4 is arranged contact in the top in the longitudinal direction portion 501, and contact is the bottom of in
The support portion of seat 2.It should be noted that the size of gasket 4 can cover the air inlet of the pedestal 5, to enhance overflow pressure relief
The air-tightness of valve prevents gas pressure from overflowing under normal circumstances from overflow pressure relief spool.In addition, when the gas atmosphere in gas circuit
When greater than pressure value corresponding to rubber spring, as shown in figure 12, longitudinal portion of the gas push mandrel 5 in gas circuit is led first
It is slided into sliding slot 9 and the second guide chute 10, transverse part 502 is mobile to 1 direction of upper cover and carries the disengaging pedestal 2 of gasket 4
Support portion 201, at this time air accommodating chamber 7 be channel status so that in gas circuit be greater than rubber spring corresponding to pressure
The gas of force value is overflowed from the venthole of upper cover 1.
Second of structure, Figure 13 show the closing of another overflow pressure relief spool according to an embodiment of the present invention and overflow
The structural schematic diagram of pressure valve air inlet is flowed, Figure 14 shows another overflow pressure relief valve according to an embodiment of the present invention
Core opens the structural schematic diagram of overflow pressure relief valve air inlet, as illustrated in figs. 13-14, when longitudinal portion 501 of overflow pressure relief poppet shaft 5
When not through transverse part 502, the structure of overflow pressure relief spool 100 is that gasket 4 is sheathed on longitudinal portion 501, and rubber spring 6 is set
In the surface of the transverse part 502 opposite with the longitudinal direction portion 501.The pedestal 2 of overflow pressure relief valve 100 is equipped with the corresponding overflow and lets out
It is slided in first guiding in longitudinal portion 501 of the first guide chute 9 that 5 longitudinal direction portion 501 of pressure valve mandrel extends, the overflow poppet shaft 5
It is slided in slot 9, support portion 201 is additionally provided on pedestal 2, to support the transverse part 502 of overflow poppet shaft 5.Further, still such as
Shown in Figure 13, when pressure value corresponding to the gas atmosphere in gas circuit is not greater than rubber spring, the overflow pressure relief valve 200 it is close
4 side contact of packing is in the end of the first guide chute 9, and other side contact is in the support portion 201 of pedestal 2, it should be noted that
The size of gasket 4 can cover the air inlet of the pedestal 2, to enhance the air-tightness of overflow pressure relief valve, prevent gas pressure from existing
It is overflowed under normal circumstances from overflow pressure relief spool.The upper cover 1 of the overflow pressure relief valve 200 is equipped with branch corresponding with rubber spring 6
Support part 101, one end of rubber spring 6 are fixed on the surface of transverse part 502, and other end contact is in the support portion 101.In addition, working as
When gas atmosphere in gas circuit is greater than pressure value corresponding to rubber spring, as shown in figure 14, the gas push mandrel 5 in gas circuit
Longitudinal portion slided in the first guide chute 9 to 1 direction of upper cover, transverse part 502 is mobile to 1 direction of upper cover and carries gasket
4 are detached from the support portion 201 of pedestal 2, and air accommodating chamber 7 is channel status at this time, so that being greater than rubber spring in gas circuit
The gas of corresponding pressure value is overflowed from the venthole of upper cover 1.
The third structure, Figure 15 show the closing of another overflow pressure relief spool according to an embodiment of the present invention and overflow
The structural schematic diagram of pressure valve air inlet is flowed, Figure 16 shows another overflow pressure relief valve according to an embodiment of the present invention
Core opens the structural schematic diagram of overflow pressure relief valve air inlet, as shown in figures 15-16, when longitudinal portion 501 of overflow pressure relief poppet shaft 5
When not through transverse part 502, the structure of overflow pressure relief spool 100 is that rubber spring 6 is sheathed on longitudinal portion 501, and gasket 4 is set
In the surface of the transverse part 502 opposite with longitudinal portion 501.The pedestal 2 of overflow pressure relief valve 200 is equipped with support portion 201, to support
The transverse part 502 of overflow poppet shaft 5.Upper cover 1 is equipped with the second guiding that the corresponding overflow pressure relief spool longitudinal direction portion 501 extends
Longitudinal portion 501 of sliding slot 10, the overflow poppet shaft 5 is slided in second guide chute 10.Further, as shown in figure 15,
When pressure value corresponding to the gas atmosphere in gas circuit is not greater than rubber spring, 4 side contact of gasket is in transverse part 502
Surface, other side contact is in the support portion 201, it should be noted that the size of gasket 4 can cover the air inlet of the pedestal
Mouthful, to enhance the air-tightness of overflow pressure relief valve, prevent gas pressure from overflowing under normal circumstances from overflow pressure relief spool.Rubber bullet
One end of spring 6 is fixed on the surface of transverse part 502, and other end contact is in the end of second guide chute 9.In addition, working as gas circuit
In gas atmosphere be greater than rubber spring corresponding to pressure value when, as shown in figure 16, the cross of the gas push mandrel 5 in gas circuit
It is moved up to portion 502, transverse part 502 carries the support portion 201 that gasket 4 is detached from pedestal 2, so that longitudinal direction portion 501 exists
It is slided in second guide chute 10, air accommodating chamber 7 is channel status at this time, is greater than pressure corresponding to rubber spring in gas circuit
The gas of force value is overflowed from the venthole of upper cover 1.
By Fig. 8-16 it is found that the claimed technical solution of the present invention apply with transverse part, longitudinal direction portion mandrel and
Rubber spring designs the structure of overflow pressure relief valve, and the gas atmosphere realized in gas circuit is greater than pressure corresponding to rubber spring
When value, the gas push mandrel overflow pressure relief poppet shaft in gas circuit is mobile to upper cover direction, so that being greater than rubber spring institute
The gas of corresponding pressure value is overflowed from the venthole of upper cover, can directly be completely eliminated due to gas high frequency vibrating in pressure leak process
Noise caused by dynamic does not need in addition increasing the additional components such as silencing cotton, muffler, compared with the prior art in must borrow
Noise is eliminated with the optional equipments such as silencing cotton, muffler are installed additional, the present invention not only reduces the volume of overflow pressure relief valve, and subtracts
The low production cost of overflow pressure relief valve.In addition, elastic gum upsetting waterproof, non-corrosive is corrosion-resistant, without separately making antirust treatment, protects
The use life cycle of overflow pressure relief valve is demonstrate,proved.
Preferably, the outboard end of pedestal is equipped with groove 3, and the gas which is used to install prevent in air inlet pipeline is overflowing
Flow the sealing ring 8 of 200 installation place of pressure valve spilling.The sealing ring 8 is including rubber ring etc..
It should also be noted that, in practical applications, it can be according to actual needs (for example, accuracy, stability, processing
Technique or cost consideration), overflow pressure relief is realized using the overflow pressure relief valve of any one of the above structure.The application lets out overflow
The structure of pressure valve is not further limited.
Need further exist for explanation, the structure and the course of work of the overflow pressure relief spool 100 in the present embodiment and implementation
The structure and work process of the claimed overflow pressure relief spool 100 of example one correspond to identical, and identical content repeats no more.
Embodiment three:
Figure 17 is to show the schematic diagram of one of according to an embodiment of the present invention overflow pressure relief system, such as Figure 17 institute
Show, which includes vehicle-mounted gas source 810, the overflow pressure relief valve 200 as described in any one of embodiment two and extremely
A few switch valve 820 and at least one airbag 830；The air inlet of the switch valve 820 connects vehicle-mounted gas source 810, the switch valve
The air inlet of 820 gas outlet connection airbag 830；Overflow pressure relief valve 200 is installed in parallel gas outlet and gas in the switch valve 820
In gas circuit between the air inlet of bag 830；
When switch valve 820 is opened, vehicle-mounted 810 gas of gas source is first into the air accommodating chamber of overflow pressure relief valve 200
7；If the air pressure of vehicle-mounted gas source 810 is higher than 6 corresponding pressure value of rubber spring in overflow pressure relief valve 200, overflow pressure relief valve
The mandrel 5 of core 100 moves up, and the overflow port of overflow pressure relief valve 200 is opened, that is, the gas held chamber 7 of overflow pressure relief valve 200
For access, the portion gas beyond oil pressure relief is overflowed by the venthole of overflow pressure relief valve 200, and remaining gas enters airbag
830.It should be noted that residual gas includes constant low pressure gas, airbag explosion is prevented, enhances the service life of airbag.
Preferably, Figure 18 shows the schematic diagram of another overflow pressure relief system according to an embodiment of the present invention,
As shown in figure 18, overflow pressure relief system 300 further include at least one support valve and/or massage valve, constitute support valve group 840 and/
Or massage valve group 850；Overflow pressure relief valve 200 is installed in parallel in the gas outlet of switch valve 820 and support valve group 840 and/or massage
In gas circuit between the air inlet of valve group 850；The gas outlet for supporting valve group 840 and/or the gas outlet for massaging valve group 850 connect gas
The air inlet of bag 830；
When switch valve 820 is opened, vehicle-mounted 810 gas of gas source is first into the air accommodating chamber of overflow pressure relief valve 200
7；If the air pressure of vehicle-mounted gas source 810 is higher than 6 corresponding pressure value of rubber spring in overflow pressure relief valve 200, overflow pressure relief valve
The mandrel 5 of core 100 moves up, and the overflow port of overflow pressure relief valve 200 is opened, that is, the gas held chamber 7 of overflow pressure relief valve 200
For access, the portion gas beyond oil pressure relief is overflowed by the venthole of overflow pressure relief valve 200, and remaining gas passes through support
Valve group 840 and/or massage valve group 850 enter airbag 830.
Preferably, Figure 19 shows the schematic diagram of another overflow pressure relief system according to an embodiment of the present invention,
As shown in figure 19, overflow pressure relief system 300 further includes the first overflow passage 860 and/or the second overflow passage 870；The overflow
The gas that 200 overflow of relief valve goes out can be by mode that any one following mode or several ways combine
Reason: (one) direct emission is in the car；(2) it is discharged outside vehicle by the first overflow passage 860；(3) pass through the second overflow passage 870
It is delivered in the ventilating system of seat cushion or backrest.It should be noted that the first overflow passage 860 and the second overflow passage 870
Deviation switch connection can be used, when the switch is biased to the first overflow passage 860, the gas that overflow goes out is from the first overflow passage
Outside 860 discharge vehicles；When the switch is biased to the second overflow passage 870, the gas that overflow goes out is conveyed by the second overflow passage 870
In to the ventilating system of seat cushion or backrest.
Preferably, overflow pressure relief system 300 further include: center processor 880, for sending a control signal to switch valve
820, valve group 840 and/or massage valve group 850 are supported, switch valve 820, support valve group 840 and/or massage valve group 850 receive the control
Signal processed, and the operation that switch is executed according to the control signal or is closed, thus control switch valve 820, support valve group 840
And/or massage valve group 850 opens or closes.
In the present embodiment, airbag 830 includes support airbag, also to wrap as headrest, shoulder support, lumbar support etc.
Include the massage airbag of corresponding body back position.It should be noted that the present invention both can with manual operation switch valve realize headrest,
Shoulder support and/or lumbar support can also send a control signal to center processor 880 by control panel or app, from
It is dynamic to realize headrest, shoulder support and/or lumbar support.It is of course also possible to be sent a control signal to by control panel or app
Center processor 880, then by the control massage valve group of center processor 880, to control massage airbag with optimum frequency
Disappear rising and realize automatic massage, enhances user experience.It should be noted that when realizing automatic support or massage, switch
Valve, support valve and massage valve respectively include solenoid valve.
It should be noted that the structure and the course of work of the overflow pressure relief valve 200 in the present embodiment and embodiment two are requested
The structure and the course of work of the overflow pressure relief valve 200 of protection correspond to identical, and identical content repeats no more.
In conclusion the claimed technical solution of the present invention is applied there is transverse part, the mandrel in longitudinal direction portion and overflow to let out
The structure for pressing spool design rubber spring sum, and relies on the overflow pressure relief spool design overflow pressure relief valve, while by overflow pressure relief
Valve is applied in overflow pressure relief system, when realizing the gas atmosphere in gas circuit greater than pressure value corresponding to rubber spring,
Gas push mandrel overflow pressure relief poppet shaft in gas circuit is mobile to upper cover direction, so that being greater than corresponding to rubber spring
The gas of pressure value is overflowed from the venthole of upper cover, can directly be completely eliminated since gas high-frequency vibration is produced in pressure leak process
Raw noise does not need in addition increasing silencing cotton, the additional components such as muffler, compared with the prior art in must borrow installation
The optional equipments such as silencing cotton, muffler eliminate noise, and the present invention not only reduces the volume of overflow pressure relief valve, and reduces excessive
Flow the production cost of pressure valve.In addition, elastic gum upsetting waterproof, non-corrosive is corrosion-resistant, without separately making antirust treatment, ensure that excessive
Flow the use life cycle of pressure valve.
The above is merely preferred embodiments of the present invention, it is not intended to limit the scope of the present invention.It is all in this hair
Any modification, equivalent replacement, improvement and so within bright spirit and principle, are included within the scope of protection of the present invention.
Claims (11)
1. a kind of overflow pressure relief spool, which is characterized in that the overflow pressure relief spool includes a mandrel and a rubber spring, the mandrel
Including longitudinal portion and transverse part, the longitudinal direction portion runs through or not through the transverse part；
If the longitudinal direction portion, through the transverse part, the rubber spring is sheathed on the longitudinal direction portion and elastic top is butted on institute
State the surface of transverse part；
If the longitudinal direction portion is not through the transverse part, the rubber spring is set to the transverse part opposite with the longitudinal direction portion
Surface, alternatively, the rubber spring is sheathed on the longitudinal direction portion and elastic top is butted on the surface of the transverse part.
2. overflow pressure relief spool as described in claim 1, which is characterized in that the overflow pressure relief spool further includes gasket,
The gasket is set to the surface of the transverse part to oppose with the rubber spring；
If the longitudinal direction portion, through the transverse part, the gasket is sheathed on the longitudinal direction portion；
If the longitudinal direction portion is not through the transverse part, the gasket is sheathed on the longitudinal direction portion, alternatively, the sealing
Pad is set to the surface of the transverse part opposite with the longitudinal direction portion.
3. overflow pressure relief valve as claimed in claim 2, which is characterized in that the gasket includes rubber pad, plastic mattress, fiber
Pad and asbestos pad.
4. overflow pressure relief spool as described in claim 1, which is characterized in that length, diameter and the shape of the rubber spring
It is corresponding with required vent pressure size.
5. a kind of overflow pressure relief valve, which is characterized in that the overflow pressure relief valve includes pedestal, upper cover and such as claim 1-4 any
Overflow pressure relief spool described in one；
The pedestal is connected to air inlet pipeline, which is equipped at least one air inlet being connected to air inlet pipeline；
The upper cover is connected to pedestal, and the outboard end of the upper cover is equipped at least one venthole being connected to outside atmosphere；
The pedestal is equipped with the first guide chute that a corresponding overflow pressure relief spool longitudinal direction portion extends, and/or, it is described on
It covers and is equipped with the second guide chute that a corresponding overflow pressure relief spool longitudinal direction portion extends；First guide chute and described
There is a certain distance between second guide chute；
The overflow pressure relief spool is arranged between the pedestal and the upper cover, the longitudinal direction of the mandrel of the overflow pressure relief spool
It is slided in first guide chute and/or second guide chute in portion；
The rubber spring of the overflow pressure relief spool is sheathed on the longitudinal direction portion and elastic top be butted on the surface of the transverse part with
Between the end of second guide chute, alternatively, the rubber spring elastic top of the overflow pressure relief spool is butted on the transverse direction
Between the surface in portion and the support portion of the upper cover；
Longitudinal portion of the mandrel, the transverse part of the mandrel and the pedestal constitute gas held chamber.
6. overflow pressure relief valve as claimed in claim 5, which is characterized in that the gasket of the overflow pressure relief spool covers residence
State the air inlet of pedestal.
7. overflow pressure relief valve as claimed in claim 5, which is characterized in that the outboard end of the pedestal is equipped with groove, described recessed
Slot is for installing the sealing ring for preventing the gas in air inlet pipeline from overflowing in overflow pressure relief valve installation place.
8. a kind of overflow pressure relief system, which is characterized in that the overflow pressure relief system includes vehicle-mounted gas source, such as claim 5-7
Overflow pressure relief valve described in meaning one and at least one switch valve and at least one airbag；The air inlet of the switch valve connects institute
Vehicle-mounted gas source is stated, the gas outlet of the switch valve connects the air inlet of the airbag；The overflow pressure relief valve is installed in parallel in institute
It states in the gas circuit between the gas outlet of switch valve and the air inlet of the airbag；
When the switch valve is opened, the vehicle-mounted source gas is first into the air accommodating chamber of overflow pressure relief valve；If
The air pressure of the vehicle-mounted gas source is higher than rubber spring corresponding pressure value in overflow pressure relief valve, then the core of the overflow pressure relief spool
Axis moves up, and the overflow port of overflow pressure relief valve is opened, and the portion gas beyond oil pressure relief passes through the outlet of overflow pressure relief valve
Hole is overflowed, and remaining gas enters the airbag.
9. overflow pressure relief system as claimed in claim 8, which is characterized in that the overflow pressure relief system further includes at least one
Support valve and/or massage valve；The overflow pressure relief valve be installed in parallel in the switch valve gas outlet and the support valve and/or
In gas circuit between the air inlet of the massage valve；The gas outlet connection of the gas outlet of the support valve and/or the massage valve
The air inlet of the airbag；
When the switch valve is opened, the vehicle-mounted source gas is first into the air accommodating chamber of overflow pressure relief valve；If
The air pressure of the vehicle-mounted gas source is higher than rubber spring corresponding pressure value in overflow pressure relief valve, then the core of the overflow pressure relief spool
Axis moves up, and the overflow port of overflow pressure relief valve is opened, and the portion gas beyond oil pressure relief passes through the outlet of overflow pressure relief valve
Hole is overflowed, and remaining gas enters airbag by the support valve and/or the massage valve.
10. overflow pressure relief system as claimed in claim 8, which is characterized in that the overflow pressure relief system further includes first excessive
Flow tube road and/or the second overflow passage；
The side that the gas that the overflow pressure relief valve overflow goes out can be combined by any one following mode or several ways
Formula is handled:
Direct emission is in the car；
It is discharged outside vehicle by first overflow passage；
It is delivered in the ventilating system of seat cushion or backrest by second overflow passage.
11. the overflow pressure relief system as described in claim 8-10, which is characterized in that the overflow pressure relief system further include:
The center processor is controlled for sending a control signal to the switch valve, the support valve and/or the massage valve
The switch valve, the support valve and/or the massage valve is made to open or close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811415898.3A CN109555881A (en) | 2018-11-26 | 2018-11-26 | A kind of overflow pressure relief spool, overflow pressure relief valve and overflow pressure relief system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811415898.3A CN109555881A (en) | 2018-11-26 | 2018-11-26 | A kind of overflow pressure relief spool, overflow pressure relief valve and overflow pressure relief system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109555881A true CN109555881A (en) | 2019-04-02 |
Family
ID=65867242
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811415898.3A Pending CN109555881A (en) | 2018-11-26 | 2018-11-26 | A kind of overflow pressure relief spool, overflow pressure relief valve and overflow pressure relief system |
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|---|---|
| CN (1) | CN109555881A (en) |
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| CN209688190U (en) * | 2018-11-26 | 2019-11-26 | 安路普（北京）汽车技术有限公司 | A kind of overflow spool, overflow pressure relief valve and overflow pressure relief system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATA286089A (en) * | 1989-12-15 | 1990-07-15 | Vaillant Gmbh | OVERFLOW VALVE |
| CN102720530A (en) * | 2012-06-30 | 2012-10-10 | 长治清华机械厂 | Automatic pressure relief device for escape capsules |
| CN103453149A (en) * | 2013-01-17 | 2013-12-18 | 宁波海歌电器有限公司 | Multifunctional electromagnetic valve |
| CN203516877U (en) * | 2013-09-12 | 2014-04-02 | 白雪飞 | Automatic pressure releasing valve |
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