CN205689379U - A kind of vacuum pump - Google Patents
A kind of vacuum pump Download PDFInfo
- Publication number
- CN205689379U CN205689379U CN201620629729.XU CN201620629729U CN205689379U CN 205689379 U CN205689379 U CN 205689379U CN 201620629729 U CN201620629729 U CN 201620629729U CN 205689379 U CN205689379 U CN 205689379U
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- China
- Prior art keywords
- piston
- diaphragm seal
- pump
- check valve
- vacuum pump
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Abstract
This utility model relates to a kind of vacuum pump, include the pump housing, piston, pump chamber it is provided with in the pump housing, piston is arranged in pump chamber, piston is slidably matched with pump chamber inwall, also include the driving means for driving piston to slide in pump chamber, pump chamber is separated into inner chamber by piston, exocoel, the pump housing is provided with air inlet, air vent, it is provided with supplied gas inside air inlet and enters the first check valve of exocoel, it is characterized in that: described piston is provided with supplied gas and enters the pore of inner chamber from exocoel, on piston, corresponding pore position is provided with supplied gas and enters the second check valve of inner chamber, the 3rd check valve that supplied gas is discharged it is provided with from inner chamber inside air vent.Using technique scheme, this utility model provides a kind of vacuum pump, and its noise is low, provides comfortable environment to passenger.
Description
Technical field
This utility model relates to a kind of pump, particularly to a kind of vacuum pump.
Background technology
Vacuum pump refers to utilize machinery, physics, chemically or physically chemical method to bleed and obtain being taken out container
The device of vacuum or equipment.
Existing a kind of vacuum pump, it is mainly used on automobile, includes the pump housing, piston, is provided with pump chamber, piston in the pump housing
Being arranged in pump chamber, piston is slidably matched with pump chamber inwall, also includes the driving dress for driving piston to slide in pump chamber
Putting, pump chamber is separated into inner chamber, exocoel by piston, and on the pump housing, corresponding exocoel position is provided with air inlet, air vent, sets inside air inlet
Having supplied gas to enter the first check valve of exocoel, air vent is provided with supplied gas and discharges the second check valve of exocoel.But, this
The vacuum pump of structure, gas directly enters exocoel from air inlet, then is discharged exocoel by air vent, and its noise is big, and, rotating speed is more
Time big, noise is the biggest, thus reduces the comfort of passenger.
Summary of the invention
The purpose of this utility model: in order to overcome the defect of prior art, this utility model provides a kind of vacuum pump, its
Noise is low, provides comfortable environment to passenger.
The technical solution of the utility model: a kind of vacuum pump, includes the pump housing, piston, is provided with pump chamber in the pump housing, and piston sets
Putting in pump chamber, piston is slidably matched with pump chamber inwall, also includes the driving means for driving piston to slide in pump chamber,
Pump chamber is separated into inner chamber, exocoel by piston, and the pump housing is provided with air inlet, air vent, is provided with outside supplied gas entrance inside air inlet
First check valve in chamber, it is characterised in that: described piston is provided with supplied gas and enters the pore of inner chamber from exocoel, right on piston
Answer pore position to be provided with supplied gas and enter the second check valve of inner chamber, be provided with inside air vent that supplied gas is discharged from inner chamber the 3rd
Check valve.
Using technique scheme, being slided in pump chamber by driving means control piston changes the pressure of exocoel, exocoel
When volume becomes big, the first check valve is opened, the second closed check valve, and gas enters exocoel from air inlet through the first check valve, outward
When chamber volume diminishes, the first closed check valve, the second check valve opens, and gas is entered inner chamber, interior intracavity by the pore on piston
Pressure increase, open the 3rd check valve and discharged by air vent.The vacuum pump of this structure, gas passes through significantly to drop in pump chamber
Low noise, thus provide comfortable environment to passenger.
Further setting of the present utility model: described piston includes pedestal, the gland that split is arranged, gland and pedestal
Fixing connection, described pore is arranged on gland, and pedestal is provided with supplied gas and enters the first through hole of inner chamber, described second
Check valve includes diaphragm seal A, and described diaphragm seal A correspondence pore position is movably arranged between gland and pedestal.
Using above-mentioned further setting, when exocoel volume diminishes, gas pushes diaphragm seal A open, is opened by pore, and gas is from gas
Hole, the first through hole enter inner chamber, this piston, the second check valve set-up mode, simple in construction.
Further setting of the present utility model: on described pedestal, corresponding diaphragm seal location A is provided with some second through holes.
Using and above-mentioned further arrange, the second through hole can be when exocoel volume becomes big, and the gas of interior intracavity is through second
After through hole, quickly promotion diaphragm seal A, so can quick closedown the second check valve by port sealing.
The most further setting of the present utility model: described pedestal part located with gland is fixing to be connected, keeper edge
Piston glide direction is arranged, and described diaphragm seal A is sheathed on the positioning element.
Using and above-mentioned the most further arrange, the keeper of setting both can position pedestal and gland, again so that close
Mounting A can move along piston glide direction, will not produce position skew, plays guide effect well, thus ensures to seal effect
Fruit is stable.
The most further setting of the present utility model: between described gland and pedestal, also pressure is provided with sealing gasket, described
Be circumferentially with sealing lip, described sealing lip and the conflict of pump chamber inwall of sealing gasket are formed and seal.
Use and above-mentioned the most further arrange, be possible to prevent gas to reveal between piston and pump chamber inwall, and, this
Sealing gasket, sealing lip, when piston movement, it is also ensured that sealing is reliable.
The most further setting of the present utility model: on the described pump housing, corresponding cavity position is provided with port, port position
Being provided with end cap, air vent is arranged on end cap, and the 3rd check valve includes diaphragm seal B, diaphragm seal B and is provided with the first lead,
Being provided with positioning seat in end cap, positioning seat is provided with steam vent, and diaphragm seal B is arranged on the outside of steam vent, and the first lead plugs
On positioning seat.
Use and above-mentioned the most further arrange, after interior cavity pressure increases, promote diaphragm seal B to open steam vent, interior intracavity
Gas through steam vent, air vent discharge；First lead is possible to prevent diaphragm seal B to produce position skew.
The most further setting of the present utility model: be provided with sponge between described end cap and positioning seat, positioning seat sets
Having locating ring, locating ring and positioning seat to surround locating slot, diaphragm seal B is arranged in locating slot, and steam vent is arranged on locating slot
Bottom, the first lead is plugged in bottom locating slot, and sponges cover sets outside locating ring, and described locating ring is provided with breach, aerofluxus
Mouthful stagger setting with locating slot.
Using and above-mentioned the most further arrange, the sponge of setting can absorb noise；The locating slot of setting, breach, permissible
Noise can be fully absorbed by the sponge, reduce noise result and be further enhanced.
The most further setting of the present utility model: the first described check valve includes diaphragm seal C, described diaphragm seal
C is provided with the second lead, and described outer intracavity is provided with mounting seat, and mounting seat is provided with air inlet, and air inlet is led with air inlet
Logical, diaphragm seal C is positioned at the inner side of air inlet, and the second lead is plugged in mounting seat.
Using and above-mentioned the most further arrange, when exocoel volume becomes big, gas is pushed open outside diaphragm seal C enters by air inlet
Chamber, the second lead is possible to prevent diaphragm seal C to produce position skew.
The most further setting of the present utility model: described driving means includes motor, stabilizer, power transmission shaft, electricity
The output shaft of machine is located in the center of stabilizer, and stabilizer is linked with the output shaft of motor, and power transmission shaft is located in stabilizer
On, power transmission shaft is relative to the center eccentric setting of stabilizer, and described piston is provided with transmission arm, described transmission arm set
It is located on power transmission shaft.
Use and above-mentioned the most further arrange, motor drive transmission arm to swing through stabilizer, power transmission shaft thus drive work
Plug reciprocatingly slides in pump chamber, simple in construction, stable work in work；Stabilizer, can reduce the shake produced when transmission arm swings
Dynamic, reduce noise.
Of the present utility model the most further arrange: described piston, transmission arm, air inlet, the first check valve, second single
Being correspondingly arranged two to valve, two piston one right settings of the first from left, pump chamber is separated into an inner chamber, two exocoels by two pistons.
Use and above-mentioned the most further arrange, the efficiency of evacuation can be improved, time-consuming.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model specific embodiment；
Fig. 2 is the cut-away view of this utility model specific embodiment；
Fig. 3 is driving device structure figure in this utility model specific embodiment；
Fig. 4 is vent position structure chart in this utility model specific embodiment；
Fig. 5 is sponge mounting structure figure in this utility model specific embodiment；
Fig. 6 is diaphragm seal C mounting structure figure in this utility model specific embodiment；
Fig. 7 is diaphragm seal B mounting structure figure in this utility model specific embodiment；
Fig. 8 is piston explosive figure in this utility model specific embodiment；
Fig. 9 is piston structure figure in this utility model specific embodiment；
Figure 10 is this utility model specific embodiment middle port structure chart.
Detailed description of the invention
As Figure 1-10 shows, a kind of vacuum pump, include the pump housing 1, piston 2, in the pump housing 1, be provided with pump chamber 3, piston 2 is arranged
In pump chamber 3, piston 2 is slidably matched with pump chamber 3 inwall, also includes the driving dress for driving piston 2 to slide in pump chamber 3
Putting 4, pump chamber 3 is separated into inner chamber 31, exocoel 32 by piston 2, and the pump housing 1 is provided with air inlet 11, air vent 12, inside air inlet 11
Being provided with supplied gas and enter the first check valve 7 of exocoel 32, described piston 2 is provided with supplied gas and enters inner chamber 31 from exocoel 32
Pore 5, on piston 2, corresponding pore 5 position is provided with supplied gas and enters the second check valve 8 of inner chamber 31, is provided with inside air vent 12
The 3rd check valve 9 that supplied gas is discharged from inner chamber 31.Wherein, described piston 2 includes pedestal 21, the gland that split is arranged
22, gland 22 is fixing with pedestal 21 to be connected, and described pore 5 is arranged on gland 22, and pedestal 21 is provided with supplied gas and enters interior
First through hole 211 in chamber 31, the second described check valve 8 includes diaphragm seal A81,5 described, diaphragm seal A81 correspondence pore
Putting and be movably arranged between gland 22 and pedestal 21, on described pedestal 21, corresponding diaphragm seal A81 position is provided with some second and leads to
Hole 212, described pedestal 21 part located with gland 22 6 is fixing to be connected, and keeper 6 is arranged along piston 2 glide direction, described
Diaphragm seal A81 is set on keeper 6, and keeper 6 can be bolt, bearing pin etc., and keeper 6 both can position pedestal 21 and pressure
Lid 22, again so that diaphragm seal A can move along piston 2 glide direction, will not produce position skew, play and guide work well
With, thus ensure that sealing effectiveness is stable.
In this utility model specific embodiment, between described gland 22 and pedestal 21, also pressure is provided with sealing gasket 23, described
Sealing gasket 23 be circumferentially with sealing lip 24, described sealing lip 24 and pump chamber 3 inwall are conflicted to be formed and are sealed.So can in case
Only gas is revealed between piston 2 and pump chamber 3 inwall, and, this sealing gasket 23, sealing lip 24, when piston 2 moves, also
Can ensure that sealing is reliable.
In this utility model specific embodiment, on the described pump housing 1, corresponding inner chamber 31 position is provided with port 13, port 13
Having installed end cap 14, air vent 12 is arranged on end cap 14, and the 3rd check valve 9 includes diaphragm seal B91, and diaphragm seal B91 sets
Having the first lead 92, be provided with positioning seat 15 in end cap 14, positioning seat 15 is provided with pore 151, and diaphragm seal B is arranged on steam vent
The outside of 151, the first lead 92 is plugged on positioning seat 15.After pressure increases in inner chamber 31, diaphragm seal B is promoted to open aerofluxus
Hole 151, the gas in inner chamber 31 is discharged through steam vent 151, air vent 12；First lead 92 is possible to prevent diaphragm seal B91 to produce
The skew of raw position.
In this utility model specific embodiment, between described end cap 14 and positioning seat 15, it is provided with sponge 16, positioning seat 15
Being provided with locating ring 152, locating ring 152 and positioning seat 15 surround locating slot 153, and diaphragm seal B91 is arranged in locating slot 153,
Steam vent 151 is arranged on the bottom of locating slot 153, and the first lead 92 is plugged in bottom locating slot 153, the sheathed location of sponge 16
Outside ring 152, described locating ring 152 is provided with breach 1521, and air vent 12 and locating slot 153 stagger setting, the sponge of setting
16 can absorb noise；The locating slot 153 of setting, breach 1521, so that noise can fully be absorbed by sponge 16, reduction is made an uproar
Audio fruit is further enhanced.
In this utility model specific embodiment, the first described check valve 7 includes diaphragm seal C71, described diaphragm seal
C71 is provided with the second lead 72, is provided with mounting seat 10 in described exocoel 32, and mounting seat 10 is provided with air inlet 101, air inlet
Hole 101 turns on air inlet 11, and diaphragm seal C71 is positioned at the inner side of air inlet 101, and the second lead 72 is plugged in mounting seat 10
On.When exocoel 32 volume becomes big, gas is pushed diaphragm seal C71 open and is entered exocoel 32 by air inlet 101, and the second lead 72 is permissible
Prevent diaphragm seal C71 from producing position skew.
In this utility model specific embodiment, described driving means 4 includes motor 41, stabilizer 42, power transmission shaft 43,
The output shaft of motor 41 is located in the center of stabilizer 42, and stabilizer 42 is linked with the output shaft of motor 41, power transmission shaft 43
Being located on stabilizer 42, power transmission shaft 43 is provided with biography relative to the center eccentric setting of stabilizer 42, described piston 2
Swing arm 44, described transmission arm 44 is set on power transmission shaft 43.Transmission arm 44 is driven through stabilizer 42, power transmission shaft 43 by motor 41
Swing thus drive piston 2 to reciprocatingly slide in pump chamber 3, simple in construction, stable work in work；Stabilizer 42, can reduce biography
The vibrations produced when swing arm 44 swings, reduce noise.
In this utility model specific embodiment, described piston 2, transmission arm 44, air inlet the 11, first check valve 7, second
Check valve 8 is correspondingly arranged two, two piston 2 one right settings of the first from left, and pump chamber 3 is separated into an inner chamber 31, two by two pistons 2
Individual exocoel 32.So can improve the efficiency of evacuation, time-consuming.
By driving means 4 control piston 2 slide in pump chamber 3 change exocoel 32 pressure, exocoel 32 volume become big time,
First check valve 7 is opened, the second closed check valve, and gas enters exocoel 32 from air inlet 11 through the first check valve, and exocoel 32 holds
Long-pending when diminishing, the first closed check valve, the second check valve 8 opens, and gas is entered inner chamber 31, inner chamber 31 by the pore 5 on piston 2
Interior pressure increases, and opens the 3rd check valve 9 and is discharged by air vent 12.The vacuum pump of this structure, gas passes through in pump chamber 3
Greatly reduce noise, thus provide comfortable environment to passenger.
Claims (10)
1. a vacuum pump, includes the pump housing, piston, is provided with pump chamber in the pump housing, and piston is arranged in pump chamber, in piston and pump chamber
Wall is slidably matched, and also includes the driving means for driving piston to slide in pump chamber, and pump chamber is separated into inner chamber, outer by piston
Chamber, the pump housing is provided with air inlet, air vent, is provided with supplied gas and enters the first check valve of exocoel inside air inlet, and its feature exists
Being provided with supplied gas in: described piston and enter the pore of inner chamber from exocoel, on piston, corresponding pore position is provided with supplied gas and enters
Enter the second check valve of inner chamber, inside air vent, be provided with the 3rd check valve that supplied gas is discharged from inner chamber.
Vacuum pump the most according to claim 1, it is characterised in that: described piston includes pedestal, the pressure that split is arranged
Lid, gland and pedestal are fixing to be connected, and described pore is arranged on gland, and it is first logical that pedestal is provided with supplied gas entrance inner chamber
Hole, the second described check valve includes diaphragm seal A, and described diaphragm seal A correspondence pore position is movably arranged on gland and base
Between Zuo.
Vacuum pump the most according to claim 2, it is characterised in that: if corresponding diaphragm seal location A is provided with on described pedestal
Dry second through hole.
4. according to the vacuum pump described in Claims 2 or 3, it is characterised in that: described pedestal is fixing with the located part of gland even
Connecing, keeper is arranged along piston glide direction, and described diaphragm seal A is sheathed on the positioning element.
Vacuum pump the most according to claim 4, it is characterised in that: between described gland and pedestal, also pressure is provided with sealing
Pad, be circumferentially with sealing lip, described sealing lip and the conflict of pump chamber inwall of described sealing gasket are formed and seal.
6. according to the vacuum pump described in claim 1 or 2 or 3 or 5, it is characterised in that: corresponding cavity position on the described pump housing
Being provided with port, port position is provided with end cap, and air vent is arranged on end cap, and the 3rd check valve includes diaphragm seal B, diaphragm seal B
Being provided with the first lead, be provided with positioning seat in end cap, positioning seat is provided with steam vent, and diaphragm seal B is arranged on outside steam vent
Side, the first lead is plugged on positioning seat.
Vacuum pump the most according to claim 6, it is characterised in that: it is provided with sponge between described end cap and positioning seat, fixed
Position seat is provided with locating ring, and locating ring and positioning seat surround locating slot, and diaphragm seal B is arranged in locating slot, and steam vent is arranged on
The bottom of locating slot, the first lead is plugged in bottom locating slot, and sponges cover sets outside locating ring, and described locating ring is provided with scarce
Mouthful, air vent and locating slot stagger setting.
8. according to the vacuum pump described in claim 1 or 2 or 3 or 5 or 7, it is characterised in that: the first described check valve includes
Diaphragm seal C, described diaphragm seal C are provided with the second lead, and described outer intracavity is provided with mounting seat, and mounting seat is provided with air inlet
Hole, air inlet turns on air inlet, and diaphragm seal C is positioned at the inner side of air inlet, and the second lead is plugged in mounting seat.
9. according to the vacuum pump described in claim 1 or 2 or 3 or 5 or 7, it is characterised in that: described driving means includes electricity
Machine, stabilizer, power transmission shaft, the output shaft of motor is located in the center of stabilizer, and stabilizer is linked with the output shaft of motor,
Power transmission shaft is located on stabilizer, and power transmission shaft is provided with biography relative to the center eccentric setting of stabilizer, described piston
Swing arm, described transmission arm is set on power transmission shaft.
Vacuum pump the most according to claim 9, it is characterised in that: described piston, transmission arm, air inlet, first unidirectional
Valve, the second check valve are correspondingly arranged two, two piston one right settings of the first from left, two pistons pump chamber is separated into an inner chamber,
Two exocoels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620629729.XU CN205689379U (en) | 2016-06-22 | 2016-06-22 | A kind of vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620629729.XU CN205689379U (en) | 2016-06-22 | 2016-06-22 | A kind of vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205689379U true CN205689379U (en) | 2016-11-16 |
Family
ID=57425303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620629729.XU Active CN205689379U (en) | 2016-06-22 | 2016-06-22 | A kind of vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205689379U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971845A (en) * | 2016-06-22 | 2016-09-28 | 浙江中昌汽车零部件有限公司 | Vacuum pump |
| CN107288890A (en) * | 2017-08-08 | 2017-10-24 | 浙江真空设备集团有限公司 | A kind of exhaust structure of vavuum pump |
| CN108843536A (en) * | 2018-06-25 | 2018-11-20 | 上海拓绅汽车电子有限公司 | A kind of dual Piston new-energy automobile vacuum pump |
-
2016
- 2016-06-22 CN CN201620629729.XU patent/CN205689379U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971845A (en) * | 2016-06-22 | 2016-09-28 | 浙江中昌汽车零部件有限公司 | Vacuum pump |
| CN107288890A (en) * | 2017-08-08 | 2017-10-24 | 浙江真空设备集团有限公司 | A kind of exhaust structure of vavuum pump |
| CN107288890B (en) * | 2017-08-08 | 2020-04-24 | 浙江真空设备集团有限公司 | Exhaust structure of vacuum pump |
| CN108843536A (en) * | 2018-06-25 | 2018-11-20 | 上海拓绅汽车电子有限公司 | A kind of dual Piston new-energy automobile vacuum pump |
| CN108843536B (en) * | 2018-06-25 | 2019-08-13 | 上海拓绅汽车电子有限公司 | A kind of dual Piston new-energy automobile vacuum pump |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |