CN208858540U - Air driven pump - Google Patents
Air driven pump Download PDFInfo
- Publication number
- CN208858540U CN208858540U CN201821517496.XU CN201821517496U CN208858540U CN 208858540 U CN208858540 U CN 208858540U CN 201821517496 U CN201821517496 U CN 201821517496U CN 208858540 U CN208858540 U CN 208858540U
- Authority
- CN
- China
- Prior art keywords
- valve membrane
- airflow channel
- gasket
- air
- diaphragm member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of air driven pump, including diaphragm member carrier, diaphragm member, valve membrane pedestal, valve membrane, end cap, driving device and overvoltage protection valve.A pump chambers are formed between diaphragm member and valve membrane pedestal.Overvoltage protection valve is set in end cap, and overvoltage protection valve includes spring and gasket.An outlet passageway, an airflow channel and a return flow line are formed between pump chambers, valve membrane pedestal, valve membrane and end cap; outlet passageway is not attached to lead to overvoltage protection valve, spring cavity; gasket is set between airflow channel and return flow line, and gasket closes airflow channel under normal conditions.Driving device can drive diaphragm member to act, and will be discharged in air from pump chamber, exported air by outlet passageway；When pressure in pump chambers is more than scheduled limiting value, the gasket energy compressed spring of overvoltage protection valve opens airflow channel, air can be flowed back by airflow channel and return flow line.
Description
Technical field
The utility model relates to a kind of air driven pumps, more particularly to one kind to be applied in field of vehicle seats, such as vehicle seat
The chair seat airbag filling device of chair is changed the profile that seat offer user leans on region by controlling chair seat airbag.
Background technique
Air driven pump is applied in field of vehicle seats, such as the chair seat airbag filling device of vehicle seat, by controlling seat
Chair air bag is changed seat and provides user's profile for leaning on region.A pump chambers are mainly arranged in the air driven pump, single via driving
Member adjusts pump chambers volume, and when volume enlargement, air is drawn into pump chambers from ambient enviroment, will be empty in smaller volume
Gas is expelled to exterior space from pump chambers.
Existing air driven pump can also correspond to one excess pressure valve of configuration, because vehicle seat air bag air bag in load excessive can go out
Existing explosion is latched pressure release opening by the valve module of excess pressure valve, and along closing direction by the spring assembly that is arranged in spring cavity
Load.When the pressure in pump chambers is more than scheduled limiting value, excess pressure valve carries out pressure release by spring assembly.But it is existing
Excess pressure valve, gas directly communicates with atmosphere after spring cavity, generates discouraged noise.
In conclusion the utility model people's thoughts drawbacks described above can improve, it is the special application for concentrating on studies and cooperating scientific principle,
Finally propose that a kind of design is reasonable and is effectively improved the utility model of drawbacks described above.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of air driven pump, inlet chamber and overvoltage protection valve
Pressure release spring cavity communicates, the noise generated when avoiding the direct pressure release of overvoltage protection valve to atmosphere, while the air-flow after pressure release is by again
Secondary utilization improves the working efficiency of air driven pump.
Technical problem to be solved in the utility model, is to provide a kind of air driven pump, including a diaphragm member carrier, one every
Membrane, a valve membrane pedestal, a valve membrane, an end cap, a driving device and an overvoltage protection valve.The diaphragm member is set to this
On diaphragm member carrier, which includes multiple linkage parts；The valve membrane pedestal is set to one end of the diaphragm member carrier, makes this
Diaphragm member is set between the diaphragm member carrier and the valve membrane pedestal, and a pump is formed between the diaphragm member and the valve membrane pedestal
Chamber；The valve membrane is set on the valve membrane pedestal；The end cap is placed in the valve membrane pedestal and the valve membrane, the end cap
One spring cavity of interior formation and an inlet chamber, the inlet chamber are communicated with the spring cavity；Multiple linkage parts are connected to driving dress
It sets；The overvoltage protection valve is set in the end cap, which includes a spring and a gasket, which is set to this
In the spring cavity of end cap, the spring energy pushing tow gasket makes the gasket towards the valve membrane pedestal and the side of the valve membrane
To movement；It is logical that an outlet passageway, an air-flow are wherein formed between the pump chambers, the valve membrane pedestal, the valve membrane and the end cap
Road and a return flow line, the outlet passageway are not attached to lead to the overvoltage protection valve, the spring cavity, which is set to the air-flow
Between channel and the return flow line, which closes the airflow channel under normal conditions, makes the airflow channel and the return flow line
Between formed barrier；The driving device can drive the diaphragm member to act, and air is discharged from the pump chambers, logical by the outlet
Road exports air；When pressure in the pump chambers is more than scheduled limiting value, the gasket of the overvoltage protection valve can compress this
Spring, opens the airflow channel, and air can be flowed back by the airflow channel and the return flow line.
Preferably, which includes an inner cap body and an outer cover, which is placed in the inner cap body, the spring cavity
Be formed between the inner cap body and the outer cover, which is set in the inner cap body, the gasket have a central part and
One outer portion, the outside for being set to the central part at the outer portion interval, is connected with multiple between the central part and the outer portion
Rib, the central part of the gasket close the airflow channel under normal conditions.
Preferably, the central part of the gasket has a pillar, is arranged a spring fixed seat on the pillar, and the one of the spring
The spring fixed seat is fixed at end.
Preferably, the central part and the outer portion close to the inner cap body one sealing ring of one side projection and a recessed card slot,
The sealing ring contacts at the inner cap body, which is connected in a corresponding card body in the inner cap body.
Preferably, which is set to the one end of the airflow channel far from the pump chambers, and the airflow channel is far from the pump
One end of chamber forms a seal, which is set in the inner cap body of the end cap, which has multiple refluxing openings, multiple
The refluxing opening is located between the return flow line and the seal, multiple refluxing openings and the return flow line and the seal phase
Connection, the central part of the gasket is placed under normal conditions on the seal, closing the seal, makes the airflow channel be in
Closed, which contacts at the seal periphery in the inner cap body, and when which opens the seal, the air-flow is logical
Air in road can be delivered in the return flow line by the seal and multiple refluxing openings.
Preferably, the outside tool of the outer portion is there are two location hole, and there are two positioning column, this two positioning for inner cap body tool
Hole is matched with two positioning columns.
Preferably, which includes a motor and a driving member, which is connected to the motor and the diaphragm member
Multiple linkage parts between.
The utility model has the beneficial effects that
The utility model can be acted using driving device driving diaphragm member, so as to adjusting pump chambers volume, in smaller volume
When, it will be expelled to exterior space in air from pump chamber, can be exported air by outlet passageway.The utility model inlet chamber with
Overvoltage protection valve pressure release spring cavity communicates, the noise generated when avoiding the direct pressure release of overvoltage protection valve to atmosphere, while after pressure release
Air-flow be used again, improve the working efficiency of air driven pump.
In order to be further understood that the utility model is technology, method and the effect reaching set purpose and being taken, ask
Refering to the detailed description below in connection with the utility model, attached drawing, it is believed that the purpose of this utility model, feature and feature, when can be by
This is able to deeply and specifically understand, however attached drawing is only for reference and description with attachment, is not used to add the utility model
With limiter.
Detailed description of the invention
Fig. 1 is the stereogram exploded view (one) of the utility model air driven pump.
Fig. 2 is the stereogram exploded view (two) of the utility model air driven pump.
Fig. 3 is the perspective view of the utility model air driven pump.
Fig. 4 is the cross-sectional view of the utility model overvoltage protection valve closing state.
Fig. 5 is V partial detail view of Fig. 4.
Fig. 6 is the cross-sectional view of the utility model overvoltage protection valve open state.
Fig. 7 is VII partial detail view of Fig. 6.
Fig. 8 is the stereogram exploded view (one) of the utility model overvoltage protection valve.
Fig. 9 is the stereogram exploded view (two) of the utility model overvoltage protection valve.
Appended drawing reference is as follows:
1 diaphragm member carrier
2 diaphragm members
21 linkage parts
22 pump chambers
3 valve membrane pedestals
4 valve membrane
5 end caps
51 spring cavitys
52 inner cap bodies
521 card bodies
53 outer covers
54 positioning columns
6 driving devices
61 motors
62 driving members
7 overvoltage protection valves
71 springs
72 gaskets
721 central parts
722 outer portions
723 ribs
724 location holes
725 pillars
726 sealing rings
727 card slots
73 spring fixed seats
100 outlet passageways
200 airflow channels
201 seals
300 return flow lines
301 refluxing openings.
Specific embodiment
Please refer to Fig. 1 to Fig. 5, the utility model provides a kind of air driven pump, including a diaphragm member carrier 1, a diaphragm member 2,
One valve membrane pedestal 3, a valve membrane 4, an end cap 5, a driving device 6 and an overvoltage protection valve 7.
The diaphragm member carrier 1 can be used to accommodate and carry diaphragm member 2.The diaphragm member 2 is set on diaphragm member carrier 1, should
Diaphragm member 2 is made of elastic material (such as rubber), and diaphragm member 2 includes multiple linkage parts 21, and multiple linkage parts 21 are from diaphragm member 2
Extend on one side toward the direction far from valve membrane pedestal 3, multiple linkage parts 21 are connected to driving device 6, will pass through driving dress
The multiple linkage parts 21 of 6 drivings are set to act.In the present embodiment, which includes a motor 61 and a driving member 62, the biography
Moving part 62 is connected between motor 61 and multiple linkage parts 21 of diaphragm member 2, when drive motor 61 rotates, can pass through driving member
The 62 multiple linkage parts 21 of transmission, act the diaphragm member 2.
The valve membrane pedestal 3 is set to one end of diaphragm member carrier 1, and diaphragm member 2 is made to be set to diaphragm member carrier 1 and valve film
Between part pedestal 3, a pump chambers 22 are formed between diaphragm member 2 and valve membrane pedestal 3, with the movement of the diaphragm member 2, pump chambers
22 volume is changed.
The valve membrane 4 is set on valve membrane pedestal 3, which is made of elastic material (such as rubber).The valve membrane
4 and the combination of valve membrane pedestal 3 form a valve module, which is made of elastic material, and valve membrane 4 is substantially in tabular.It should
End cap 5 is placed in valve membrane pedestal 3 and valve membrane 4, and can by between diaphragm member carrier 1, valve membrane pedestal 3 and end cap 5 with
The fixing pieces such as bolt or fastener are fixed.Valve membrane 4, valve membrane pedestal 3 and end cap 5 are configured, and permissible air enters pump
Chamber 22, air can be exported by pump chambers 22, while can prevent air reverse flow.It is described to prevent air reverse flow
Using the components such as existing check valve are arranged, since it belongs to the prior art, and the emphasis of non-the requires of the utility model, therefore not
To repeat.
The overvoltage protection valve 7 is set in end cap 5, which includes a spring 71 and a gasket 72, the end
A spring cavity 51 is formed in lid 5, which is set in the spring cavity 51 of end cap 5.The gasket 72 is by elastic material (such as rubber
Glue, thermoplastic plastic) it is made, one end of spring 71 can contact at gasket 72, and 71 energy pushing tow gasket 72 of spring makes gasket
72 is mobile towards the direction of valve membrane pedestal 3 and valve membrane 4, which can correspond to valve membrane pedestal 3 and valve membrane 4
Centre.An outlet passageway 100 is formed between the pump chambers 22, valve membrane pedestal 3, valve membrane 4 and end cap 5, makes air
It can be exported outward by outlet passageway 100.The outlet passageway 100 and overvoltage protection valve 7, spring cavity 51 form the design separated,
That is, outlet passageway 100 is not attached to lead to overvoltage protection valve 7, spring cavity 51.One end of the outlet passageway 100 can be connected by pipeline
It is connected to the chair seat airbag (figure omits) of vehicle seat, the operation being inflated so as to the chair seat airbag to vehicle seat.
In the present embodiment, which uses two-piece design, may include an inner cap body 52 and an outer cover 53, this is outer
Lid 53 is placed in inner cap body 52, which can be formed between inner cap body 52 and outer cover 53, the inner cap body of end cap 5
Inlet chamber 522 is formed in 52, inlet chamber 522 is communicated with spring cavity 51.The gasket 72 has a central part 721 and an outer ring
Portion 722 (as can be seen from figures 8 and 9), the outside for being set to central part 721 that outer portion 722 is spaced, central part 721 and outer portion
Multiple ribs 723 are connected between 722.There are two location holes 724 for the outside tool of the outer portion 722, and the inner cap body 52 has
Two positioning columns 54, two location holes 724 are matched with two positioning columns 54, gasket 72 are enable to be set in inner cap body 52.
The central part 721 has a pillar 725, which is band umbrella shape goalpost, is arranged a spring on the pillar 725
Fixing seat 73 is fixed on spring fixed seat 73 on the gasket 72 with umbrella shape goalpost.
Spring fixed seat 73 is fixed in one end of spring 71, and the other end of spring 71 contacts at position appropriate, so that bullet
One end of spring 71 can contact at gasket 72 by spring fixed seat 73.The central part 721 and outer portion 722 are close to inner cap body 52
One side can distinguish one sealing ring 726 of projection and a recessed card slot 727, which can contact at inner cap body 52, to increase
Encrypt the leakproofness of the central part 721 of packing 72.The card slot 727 can be connected in a corresponding card body 521 in inner cap body 52, make
It obtains gasket 72 to be able to accurately be positioned in inner cap body 52, while also can be reduced the wind of gasket 72 and the loosening of inner cap body 52
Danger.
An airflow channel 200 and a reflux are formed between the pump chambers 22, valve membrane pedestal 3, valve membrane 4 and end cap 5
Channel 300.The gasket 72 is set between airflow channel 200 and return flow line 300, that is, the gasket 72 may be disposed at gas
The one end of circulation road 200 far from pump chambers 22, the airflow channel 200 form a seal 201 far from one end of pump chambers 22, should
Seal 201 can be set on end cap 5, that is, seal 201 can be set in the inner cap body 52 of end cap 5.The end cap 5 can have multiple
Refluxing opening 301, multiple refluxing openings 301 are between return flow line 300 and seal 201, and multiple refluxing openings 301 and reflux are logical
Road 300 and seal 201 are connected.Gasket 72 is under normal conditions (when the pressure in pump chambers 22 is less than scheduled limiting value)
It is placed on the seal 201, that is, the central part 721 of gasket 72 is placed under normal conditions on the seal 201, to seal
The seal 201 is closed, makes airflow channel 200 in closed, makes to form barrier between airflow channel 200 and return flow line 300.It should
Sealing ring 726 can contact at 201 periphery of seal in inner cap body 52, to increase leakproofness.
Therefore, the air in pump chambers 22 can only be exported outward under normal conditions by outlet passageway 100, only in pump chambers
When pressure in 22 is more than scheduled limiting value, air can be such that gasket 72 opens by 200 pushing tow gasket 72 of airflow channel
Seal 201 is opened, the air in airflow channel 200 can be delivered to reflux by seal 201 and multiple refluxing openings 301 at this time
In channel 300, to carry out the movement of pressure release.
The utility model can drive diaphragm member 2 to act using driving device 6, and so as to adjusting 22 volume of pump chambers, volume expands
When big, air is drawn into pump chambers 22 from ambient enviroment, in smaller volume, will be discharged in air from pump chamber 22, led to
It crosses outlet passageway 100 and air is exported into (as shown in Figures 4 and 5), deliver the air to seat adjuster will pass through pipeline
Fluid chamber, by control chair seat airbag be changed seat provide user lean on region profile.When in pump chambers 22
When pressure is more than scheduled limiting value, 72 compressible spring 71 of gasket of overvoltage protection valve 7 opens airflow channel 200 (such as
Shown in Fig. 6 and Fig. 7), even if also seal 201 is opened, to carry out the movement of pressure release, keep air completely logical by outlet
Road 100 exports, and partial air can flow back into inlet chamber 522 by airflow channel 200 and return flow line 300 at this time, to keep away
Exempt from air bag air bag explosion when load pressure is excessively high of vehicle seat.The air of reflux can be also drawn into again in pump chambers 22,
Air being exported with will pass through outlet passageway 100, promoting the working efficiency of air driven pump.
The characteristics of the utility model and function are:
The utility model can be acted using driving device driving diaphragm member, so as to adjusting pump chambers volume, in smaller volume
When, it will be expelled to exterior space in air from pump chamber, can be exported air by outlet passageway.The utility model inlet chamber with
Overvoltage protection valve pressure release spring cavity communicates, the noise generated when avoiding the direct pressure release of overvoltage protection valve to atmosphere, while after pressure release
Air-flow be used again, improve the working efficiency of air driven pump.
The above is only the preferred embodiment of the present invention, is not intended to the patent protection model of limitation the utility model
It encloses, thus it is all with equivalence changes made by the utility model specification and accompanying drawing content, it is practical new to be similarly all contained in this
In the rights protection scope of type.
The foregoing is merely the preferable possible embodiments of the utility model, it is all done according to the utility model claims it is equal
Deng variation and modification, it should all belong to the covering scope of the utility model.
Claims (7)
1. a kind of air driven pump characterized by comprising
One diaphragm member carrier；
One diaphragm member, the diaphragm member are set on the diaphragm member carrier, which includes multiple linkage parts；
One valve membrane pedestal, the valve membrane pedestal are set to one end of the diaphragm member carrier, the diaphragm member are made to be set to the diaphragm
Between part carrier and the valve membrane pedestal, a pump chambers are formed between the diaphragm member and the valve membrane pedestal；
One valve membrane, the valve membrane are set on the valve membrane pedestal；
One end cap, the end cap are placed in the valve membrane pedestal and the valve membrane, and a spring cavity and an air inlet are formed in the end cap
Chamber, the inlet chamber are communicated with the spring cavity；
One driving device, multiple linkage parts are connected to the driving device；And
One overvoltage protection valve, the overvoltage protection valve are set in the end cap, which includes a spring and a gasket,
The spring is set in the spring cavity of the end cap, and the spring energy pushing tow gasket makes the gasket towards the valve membrane pedestal
And the direction of the valve membrane is mobile；
Wherein formed between the pump chambers, the valve membrane pedestal, the valve membrane and the end cap outlet passageway, an airflow channel and
One return flow line, the outlet passageway are not attached to lead to the overvoltage protection valve, the spring cavity, which is set to the airflow channel
And between the return flow line, which closes the airflow channel under normal conditions, makes between the airflow channel and the return flow line
Form barrier；The driving device can drive the diaphragm member to act, and air is discharged from the pump chambers, will by the outlet passageway
Air output；When pressure in the pump chambers is more than scheduled limiting value, the gasket of the overvoltage protection valve can compress the spring,
Open the airflow channel, air can be flowed back by the airflow channel and the return flow line.
2. air driven pump as described in claim 1, which is characterized in that the end cap includes an inner cap body and an outer cover, the outer cover
Body is placed in the inner cap body, which is formed between the inner cap body and the outer cover, which is set to the inner cover
On body, which has a central part and an outer portion, the outside for being set to the central part at the outer portion interval, the center
Multiple ribs are connected between portion and the outer portion, the central part of the gasket closes the airflow channel under normal conditions.
3. air driven pump as claimed in claim 2, which is characterized in that the central part of the gasket has a pillar, on the pillar
It is arranged a spring fixed seat, the spring fixed seat is fixed in one end of the spring.
4. air driven pump as claimed in claim 2, which is characterized in that the central part is sealed close to the one side projection one of the inner cap body
Circle, for the outer portion close to the recessed card slot of one side of the inner cap body, which contacts at the inner cap body, which is connected in this
A corresponding card body in inner cap body.
5. air driven pump as claimed in claim 4, which is characterized in that the gasket is set to the airflow channel far from the pump chambers
One end, the airflow channel far from the pump chambers one end formed a seal, the seal be set to the end cap inner cap body on,
The end cap has multiple refluxing openings, and multiple refluxing openings are located between the return flow line and the seal, multiple reflux
Mouth is connected with the return flow line and the seal, and the central part of the gasket is placed under normal conditions on the seal, to
The seal is closed, makes the airflow channel in closed, which contacts at the seal periphery in the inner cap body, this is close
When packing opens the seal, the air in the airflow channel can be delivered to this time by the seal and multiple refluxing openings
In circulation road.
6. air driven pump as claimed in claim 2, which is characterized in that there are two location hole, the inner covers for the outside tool of the outer portion
For body tool there are two positioning column, which is matched with two positioning columns.
7. air driven pump as described in claim 1, which is characterized in that the driving device includes a motor and a driving member, the biography
Moving part is connected between the motor and multiple linkage parts of the diaphragm member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821517496.XU CN208858540U (en) | 2018-09-17 | 2018-09-17 | Air driven pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821517496.XU CN208858540U (en) | 2018-09-17 | 2018-09-17 | Air driven pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208858540U true CN208858540U (en) | 2019-05-14 |
Family
ID=66418195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821517496.XU Withdrawn - After Issue CN208858540U (en) | 2018-09-17 | 2018-09-17 | Air driven pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208858540U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905788A (en) * | 2018-09-17 | 2020-03-24 | 科际精密股份有限公司 | Pneumatic pump |
| CN112814879A (en) * | 2020-12-29 | 2021-05-18 | 上海澳华内镜股份有限公司 | Air pump device and endoscope |
-
2018
- 2018-09-17 CN CN201821517496.XU patent/CN208858540U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905788A (en) * | 2018-09-17 | 2020-03-24 | 科际精密股份有限公司 | Pneumatic pump |
| WO2020057268A1 (en) * | 2018-09-17 | 2020-03-26 | 科际精密股份有限公司 | Pneumatic pump |
| CN110905788B (en) * | 2018-09-17 | 2021-07-02 | 科际精密股份有限公司 | Pneumatic pump |
| CN112814879A (en) * | 2020-12-29 | 2021-05-18 | 上海澳华内镜股份有限公司 | Air pump device and endoscope |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190514 Effective date of abandoning: 20210702 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190514 Effective date of abandoning: 20210702 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |