CN206360865U - A kind of automobile vacuum pump - Google Patents
A kind of automobile vacuum pump Download PDFInfo
- Publication number
- CN206360865U CN206360865U CN201621368058.2U CN201621368058U CN206360865U CN 206360865 U CN206360865 U CN 206360865U CN 201621368058 U CN201621368058 U CN 201621368058U CN 206360865 U CN206360865 U CN 206360865U
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- China
- Prior art keywords
- valve
- check valve
- vacuum pump
- pump
- ring
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- 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.)
- Expired - Fee Related
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses a kind of automobile vacuum pump, including check valve, valve pocket, sealing ring, suction nozzle and compression set, the valve pocket clamping is connected on check valve, the sealing ring is bolted to valve pocket lower end, the suction nozzle clamping is connected on check valve inside, the compression set is bolted to check valve lower end, the check valve upper end is provided with intake channel, the compression set bottom is provided with exit passageway, the compression set includes valve element, compression spring, back-up ring afterwards, valve core case and elastic card claw, the valve element is pressed on check valve bottom by compression spring, the rear back-up ring is fixedly connected in compression spring, the rear back-up ring center is provided with a tapered hole being engaged with compression spring rear end taper, the annular groove for coordinating clamping with valve core case is provided with the middle part of the valve element, the elastic card claw is installed on valve core case, the intake channel is provided with dust cap；The automobile vacuum pump effective dust, installation accuracy is high, good sealing effect.
Description
Technical field
The utility model is related to a kind of automobile vacuum pump.
Background technology
Vavuum pump refer to using machinery, physics, chemically or physically chemical method be evacuated to being taken out container and obtained
The device or equipment of vacuum.For popular, vavuum pump is to improve, produce and maintain true in a certain closing space with various methods
Empty device.
By the operation principle of vavuum pump, vavuum pump can substantially be divided into two types, i.e. gas trapping pump and gas is passed
Defeated pump.It is widely used in the industries such as metallurgy, chemical industry, food, electronics plated film.
Many kinds are had been developed in the development applied with vacuum, the species of vavuum pump, and its pumping speed is raised to from zero point per second is several
Hundreds of thousands per second, millions of liters.As vacuum technique is applied to the requirement of pressure range in production and field of scientific study
It is more and more wider, mostly need by several vacuum pump groups be evacuated jointly into vacuum-pumping system after could meet produce and scientific research
The requirement of process, because vacuum is very wide using the scope of the operating pressure involved by department, therefore the vacuum of any type
Pump is impossible to be completely suitable for all working pressure ranges, can only be according to different working pressure ranges and different work
It is required that, use different types of vavuum pump.The need for for easy to use and various vacuum technology processes, sometimes by various vacuum
Pump combines by its performance requirement, with unit pattern application.
Conventional vavuum pump includes dry screw vacuum pump, water ring pump, reciprocating pump, slide valve pump, sliding vane rotary pump, lobe pump and diffusion
Pump etc., these pumps are essential main force's pump kinds during Chinese national economy every profession and trade application vacuum technology.In recent years, companion
As China's economy grows continuously and fast, vavuum pump associated downstream application industry keeps the rapid growth impetus, while in vavuum pump
Under the application field constantly common pulling of factor such as expansion, China's vavuum pump industry realizes sustainedly and stably quickly development.
(1) the vibration produced during vacuum pump work whether there is influence to technical process and environment., should if technical process does not allow
Select vibrationless pump or take vibration proof measure.
(2) understand in pumped gas composition, gas and contain without steam can be coagulated, whether there is particle dust, there is non-corrosiveness etc..Choosing
, it is necessary to know gas componant when selecting vavuum pump, corresponding pump is selected for pumped gas.If in gas containing steam, particle,
And corrosive gas, it is contemplated that auxiliary equipment, such as condenser, deduster are installed on the air inlet pipeline of pump.
(3) vavuum pump should be able to drain all gas amount produced in vacuum equipment technical process under its operating pressure.
(4) correctly combination vacuum pump.Due to the selective pumping of vavuum pump, thus, it can not be met from a kind of pump sometimes
Pumping is required, it is necessary to which several pump groups, which altogether, complement each other, could meet pumping requirement.As titanium sublimation pump has very high take out to hydrogen
Speed, but can not take out helium, and triple-pole type sputter ion pump, (or the asymmetric cathodic sputtering ionic pump of diarch) has certain take out to argon
Speed, both are combined, and vacuum plant will be made to obtain preferable vacuum.In addition, some vavuum pumps can not be under atmospheric pressure
Work is, it is necessary to forevacuum；Some vacuum pump outlet pressure subatmospherics are, it is necessary to which fore pump, former capital is needed pump group altogether
Use.
(5) requirement of the vacuum equipment to oily pollution.If equipment is strict with oil-free, it should select various oil-less pumps, such as：Water
Ring pump, molecular-sieve sorption pump, sputter ion pump, cryogenic pump etc..If it is required that not strict, oil pump can have been selected, added
Preventing oil pollution measure, such as adds the oily trap of cold-trap, baffle, gear, can also reach clean vacuum requirement.
(6) the operating point of vavuum pump is correctly selected.Every kind of pump has certain operating pressure scope, such as：2BV Series of Water
Ring vacuum pump operating pressure scope 760mmHg~25mmHg (absolute pressure), in so wide pressure range, the pumping speed of pump is with pressure
Change (performance curve of the detailed situation of change with reference to pump), its stable operating pressure scope is 760~60mmHg.Thus, pump
Operating point should be selected within the scope of this more suitable, and can not allow its long-term work under 25~30mmHg.
(7) how is influence of the oil vapour that vavuum pump is ejected to environment.If environment is not allow for pollution, nothing can be selected
Oil vacuum pump, or oil vapour is discharged to outdoor.
(8) the operating pressure of vavuum pump should meet end vacuum and the operating pressure requirement of vacuum equipment.Such as：Certain vacuum
Drying process requires 10mmHg working vacuum degree, and the final vacuum of the vavuum pump of selection at least wants 2mmHg, it is therefore desirable to reach
1mmHg.The final vacuum for generally selecting pump is higher than half of vacuum equipment working vacuum degree and arrives an order of magnitude.
But automobile vacuum pump now can not be dust-proof, installation accuracy is low, and sealing effectiveness is poor.
Utility model content
In view of this, this is to provide a kind of effective dust with utility model purpose, and installation accuracy is high, the vapour of good sealing effect
Car vavuum pump.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：
A kind of automobile vacuum pump, including check valve, valve pocket, sealing ring, suction nozzle and compression set, the compression set lead to
Bolt connection is crossed in check valve lower end, the compression set includes valve element, compression spring, rear back-up ring, valve core case and elastic card claw,
The valve element is pressed on check valve bottom by compression spring, and the rear back-up ring is fixedly connected in compression spring, the valve element
Middle part is provided with the annular groove for coordinating clamping with valve core case, and the elastic card claw is installed on valve core case.
Preferably, the valve pocket clamping is connected on check valve, by the protection of valve pocket, make vavuum pump abrasion reduction,
Protect vavuum pump.
Preferably, the suction nozzle clamping is connected on check valve inside, it is connected, is entered with suction nozzle by trachea
Gas.
Preferably, the intake channel is provided with dust cap, during vacuum air pump inoperative, it can prevent dust from entering import
In passage.
Preferably, the rear back-up ring center is provided with a tapered hole being engaged with compression spring rear end taper, pass through
Tapered hole, can be by the compression spring side of being fixed thereon well.
Preferably, the check valve upper end is provided with intake channel, the compression set bottom is provided with exit passageway, import
Passage air-breathing, and exit passageway is exhausted, and forms a circulation.
Preferably, the sealing ring is bolted to valve pocket lower end, air inlet pipe is entangled by sealing ring, increased
Sealing effectiveness.
Operation principle
When the vavuum pump is started working, gas is absorbed from intake channel, intake channel is closed, passes through setting and check valve
On suction nozzle output gas, compression spring starts deformation and reduces volume, so that with being moved under movable valve plug valve element picture, increases its pressure
Pressure in compression apparatus, when reaching certain pressure intensity, opens exit passageway, gas is discharged.
The utility model has the technical effect that following aspect：Intake channel is provided with dust cap, vavuum pump not work
It when making, can prevent dust from entering in compression set, influence the normal operation of compression set, valve element is pressed on by compression spring
The annular groove for coordinating clamping with valve core case is provided with the middle part of check valve bottom, valve element, elastic card claw is installed on valve core case, makes compression
Spring and valve body position portion realize self-centering, improve installation accuracy, it is therefore prevented that spring and valve element is inclined in action process
Move, it is ensured that the reliable sealing of sealing surface, suction nozzle clamping is connected on check valve inside, and sealing ring is bolted to valve pocket
Lower end, when air inlet pipe is planted to suction nozzle, sealing ring is socketed in air inlet pipe, so as to air inlet pipe be entangled, increase sealing
Effect.
Brief description of the drawings
Fig. 1 is a kind of overall structure diagram of automobile vacuum pump of the utility model.
Embodiment
Below in conjunction with accompanying drawing 1, embodiment of the present utility model is described in further detail, so that the utility model skill
Art scheme is more readily understood and grasped.
A kind of automobile vacuum pump, including check valve 1, valve pocket 2, sealing ring 3, suction nozzle 4 and compression set 5, the valve pocket 2
Clamping is connected on check valve 1, by the protection of valve pocket 2, is made vavuum pump abrasion reduction, is protected vavuum pump, the sealing ring 3 leads to
Bolt connection is crossed in the lower end of valve pocket 2, when air inlet pipe is planted to suction nozzle 4, sealing ring 3 is socketed in air inlet pipe, so that will
Air inlet pipe is entangled, and increases sealing effectiveness, and the clamping of suction nozzle 4 is connected on the inside of check valve 1, passes through trachea and suction nozzle
4 connections, into gas, the compression set 5 is bolted to the lower end of check valve 1, and by compression set 5, gas is carried out
Compression, the upper end of check valve 1 is provided with intake channel 6, and the compression set bottom is provided with exit passageway 7, and intake channel 6 is inhaled
Gas, and exit passageway 7 is exhausted, and forms a circulation.
The compression set 5 includes valve element 8, compression spring 9, rear back-up ring 10, valve core case 11 and elastic card claw 12, the valve
Core 8 is pressed on the bottom of check valve 1 by compression spring 9, admits air into compression set 5, can obtain the pressure of maximum, described
Back-up ring 10 is fixedly connected in compression spring 9 afterwards, and compression spring 9, the rear center of back-up ring 10 can be fixed by rear back-up ring 10
, can be fine by compression spring 9 by tapered hole 13 provided with a tapered hole 13 being engaged with the rear end taper of compression spring 9
The side of being fixed thereon, the middle part of the valve element 8 is provided with the annular groove 14 for coordinating clamping with valve core case 11, by annular groove 14, can be with
Valve core case 11 is fixed on the middle part of valve element 8 well, the elastic card claw 12 is installed on valve core case 11, make compression spring 9 with
Valve body position portion realizes self-centering, improves installation accuracy, it is therefore prevented that the skew of spring and valve element 8 in action process, protects
The reliable sealing of sealing surface is demonstrate,proved, the intake channel 6 is provided with dust cap 15, during vacuum air pump inoperative, can prevent dust from entering
Enter in intake channel.
The utility model has the technical effect that following aspect：Intake channel is provided with dust cap, vavuum pump not work
It when making, can prevent dust from entering in compression set, influence the normal operation of compression set, valve element is pressed on by compression spring
The annular groove for coordinating clamping with valve core case is provided with the middle part of check valve bottom, valve element, elastic card claw is installed on valve core case, makes compression
Spring and valve body position portion realize self-centering, improve installation accuracy, it is therefore prevented that spring and valve element is inclined in action process
Move, it is ensured that the reliable sealing of sealing surface, suction nozzle clamping is connected on check valve inside, and sealing ring is bolted to valve pocket
Lower end, when air inlet pipe is planted to suction nozzle, sealing ring is socketed in air inlet pipe, so as to air inlet pipe be entangled, increase sealing
Effect.
Certainly, it is representative instance of the present utility model above, in addition, the utility model can also have other a variety of
The technical scheme of embodiment, all use equivalent substitutions or equivalent transformation formation, all falls within the utility model and is claimed
Within the scope of.
Claims (6)
1. a kind of automobile vacuum pump, it is characterised in that：It is described including check valve, valve pocket, sealing ring, suction nozzle and compression set
Compression set is bolted to check valve lower end, and the compression set includes valve element, compression spring, rear back-up ring, valve core case
And elastic card claw, the valve element is pressed on check valve bottom by compression spring, and the rear back-up ring is fixedly connected on compression spring
On, the annular groove for coordinating clamping with valve core case is provided with the middle part of the valve element, the elastic card claw is installed on valve core case.
2. automobile vacuum pump according to claim 1, it is characterised in that：The valve pocket clamping is connected on check valve.
3. automobile vacuum pump according to claim 2, it is characterised in that：The suction nozzle clamping is connected to inside check valve
On.
4. automobile vacuum pump according to claim 3, it is characterised in that：The rear back-up ring center is provided with one and compression bullet
The tapered hole that spring rear end taper is engaged.
5. automobile vacuum pump according to claim 4, it is characterised in that：The check valve upper end is provided with intake channel, institute
Compression set bottom is stated provided with exit passageway.
6. automobile vacuum pump according to claim 5, it is characterised in that：The sealing ring is bolted under valve pocket
End.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621368058.2U CN206360865U (en) | 2016-12-13 | 2016-12-13 | A kind of automobile vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621368058.2U CN206360865U (en) | 2016-12-13 | 2016-12-13 | A kind of automobile vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206360865U true CN206360865U (en) | 2017-07-28 |
Family
ID=59374573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621368058.2U Expired - Fee Related CN206360865U (en) | 2016-12-13 | 2016-12-13 | A kind of automobile vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206360865U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397371A (en) * | 2018-05-31 | 2018-08-14 | 湖州知谷汽车零部件有限公司 | It is conveniently replaceable the modularization gas nozzle of connection |
| CN108730163A (en) * | 2018-05-31 | 2018-11-02 | 湖州知谷汽车零部件有限公司 | The gas nozzle connector of quick assembling |
| CN108757399A (en) * | 2018-05-31 | 2018-11-06 | 湖州知谷汽车零部件有限公司 | It is conveniently replaceable the vacuum pump of connection |
-
2016
- 2016-12-13 CN CN201621368058.2U patent/CN206360865U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397371A (en) * | 2018-05-31 | 2018-08-14 | 湖州知谷汽车零部件有限公司 | It is conveniently replaceable the modularization gas nozzle of connection |
| CN108730163A (en) * | 2018-05-31 | 2018-11-02 | 湖州知谷汽车零部件有限公司 | The gas nozzle connector of quick assembling |
| CN108757399A (en) * | 2018-05-31 | 2018-11-06 | 湖州知谷汽车零部件有限公司 | It is conveniently replaceable the vacuum pump of connection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170728 Termination date: 20211213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |