CN204692013U - Automobile duplex pump - Google Patents
Automobile duplex pump Download PDFInfo
- Publication number
- CN204692013U CN204692013U CN201520402159.6U CN201520402159U CN204692013U CN 204692013 U CN204692013 U CN 204692013U CN 201520402159 U CN201520402159 U CN 201520402159U CN 204692013 U CN204692013 U CN 204692013U
- Authority
- CN
- China
- Prior art keywords
- pump body
- vacuum pump
- chamber
- transmission shaft
- valve core
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of automobile duplex pump, comprise the vacuum pump body and fuel pump body with the chamber that works alone, vacuum pump body and fuel pump body share same transmission shaft, transmission shaft is arranged with oil sealing the chamber of vacuum pump body and fuel pump body is separated, the transmission shaft being positioned at vacuum pump body is connected with vacuum pump rotor, vacuum pump body is provided with intakeport and relief opening, described intakeport is combined with one-way valve seat, nonreturn valve core assembly is provided with in one-way valve seat, described relief opening is coated with elasticity jam, and elasticity jam one end is fixed in vacuum pump body.This solution provides a kind of automobile duplex pump, can allow on automobile and need the device of negative pressure to maintain good degree of vacuum, ensure that component run well.
Description
Technical field
The utility model relates to a kind of automobile duplex pump, belongs to auto parts machinery field.
Background technique
Automobile duplex pump adopts same transmission shaft to provide torque to vacuum pump and fuel pump respectively, two pump housings can be allowed to be made of one, simplified structure, as long as motor input end.But the intakeport on vacuum pump body connects the equipment needing negative pressure, the relief opening of vacuum pump is communicated with extraneous, if the vacuum runner sealing in vacuum pump is bad, extraneous gas easily enters cavity by gap, then the equipment needing negative pressure is flowed back to by intakeport, cause equipment vacuum degree not go always, the equipment that affects runs.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of automobile duplex pump, can allow on automobile and need the device of negative pressure to maintain good degree of vacuum, ensures that component run well.
For achieving the above object, the utility model provides following technological scheme: a kind of automobile duplex pump, comprise the vacuum pump body and fuel pump body with the chamber that works alone, vacuum pump body and fuel pump body share same transmission shaft, transmission shaft is arranged with oil sealing the chamber of vacuum pump body and fuel pump body is separated, the transmission shaft being positioned at vacuum pump body is connected with vacuum pump rotor, vacuum pump body is provided with intakeport and relief opening, described intakeport is combined with one-way valve seat, nonreturn valve core assembly is provided with in one-way valve seat, described relief opening is coated with elasticity jam, elasticity jam one end is fixed in vacuum pump body.
Preferably, described one-way valve seat is provided with air intake passage, air intake passage lower end is provided with the chamber that diameter is greater than air intake passage, described nonreturn valve core assembly is positioned at chamber, described nonreturn valve core assembly comprises nonreturn valve core, holddown spring, spring seat, nonreturn valve core is conflicted in the upper-end surface of chamber with shutoff air intake passage and chamber by holddown spring, and spring seat is positioned at chamber lower end surface and is provided with guide protrusions, and guide protrusions stretches into holddown spring inside.
Preferably, described elasticity jam one end is fixed by screws in vacuum pump body, and be also fixed with rigid baffle above elasticity jam, rigid baffle is positioned at air outlet portion and is upturned.
By adopting technique scheme, vacuum pump rotor is divided into the chamber in vacuum pump body calms the anger and air-breathing two-part, air-breathing be communicated with the air siphoned away in automobile component with intakeport, calm the anger the air that sucks out is discharged is extraneous, ensure that the degree of vacuum in automobile component.But when vacuum pump rotor rotating speed is lower or idle running time, in order to avoid ambient atmos enters automobile component inside, be provided with twice defensive barrier, first is arranged on relief opening, ambient atmos is wanted to enter vacuum pump body chamber, elasticity jam is tightly pressed on relief opening under extraneous gas pressure, second is arranged on intakeport, by arranging check valve assembly, ensure that intakeport can only inspiration gas, and gas can not be entered in automobile component, ensure that and component can be run well inner degree of vacuum.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the utility model erection drawing;
Fig. 2 is the outline drawing of the utility model vacuum pump body;
Fig. 3 is the enlarged view at A place in the utility model Fig. 2.
Accompanying drawing illustrates: 1, vacuum pump body; 2, fuel pump body; 3, transmission shaft; 4, vacuum pump rotor; 5, intakeport; 6, relief opening; 7, elasticity jam; 8, screw; 9, rigid baffle; 10, one-way valve seat; 11, nonreturn valve core; 12, holddown spring; 13, spring seat; 13a, guide protrusions.
Embodiment
A kind of automobile duplex pump, comprise the vacuum pump body 1 and fuel pump body 2 with the chamber that works alone, vacuum pump body 1 and fuel pump body 2 share same transmission shaft 3, transmission shaft 3 is arranged with oil sealing the chamber of vacuum pump body 1 and fuel pump body 2 is separated, the transmission shaft 3 being positioned at vacuum pump body 1 is connected with vacuum pump rotor 4, vacuum pump body 1 is provided with intakeport 5 and relief opening 6, intakeport 5 is combined with one-way valve seat 10, nonreturn valve core 11 assembly is provided with in one-way valve seat 10, relief opening 6 is coated with elasticity jam 7, and elasticity jam 7 one end is fixed in vacuum pump body 1.Vacuum pump rotor 4 is divided into the chamber in vacuum pump body 1 calms the anger and air-breathing two-part, air-breathing is communicated with intakeport 5 air siphoned away in automobile component, that calms the anger discharges the external world the air sucked out, and ensure that the degree of vacuum in automobile component.But when vacuum pump rotor 4 rotating speed is lower or idle running time, in order to avoid ambient atmos enters automobile component inside, be provided with twice defensive barrier, first is arranged on relief opening 6, ambient atmos is wanted to enter vacuum pump body 1 chamber, elasticity jam 7 is tightly pressed on relief opening 6 under extraneous gas pressure, second is arranged on intakeport 5, by arranging check valve assembly, ensure that intakeport 5 can only inspiration gas, and gas can not be entered in automobile component, ensure that and component can be run well inner degree of vacuum.
Wherein, one-way valve seat 10 is provided with air intake passage, air intake passage lower end is provided with the chamber that diameter is greater than air intake passage, nonreturn valve core 11 assembly is positioned at chamber, nonreturn valve core 11 assembly comprises nonreturn valve core 11, holddown spring 12, spring seat 13, nonreturn valve core 11 is conflicted in the upper-end surface of chamber with shutoff air intake passage and chamber by holddown spring 12, and spring seat 13 is positioned at chamber lower end surface and is provided with guide protrusions 13a, and it is inner that guide protrusions 13a stretches into holddown spring 12.This assembling mode can ensure the guiding accuracy of the frequent folding of check valve assembly, not easily occurs vibration and noise, good sealing effect simultaneously.
Wherein, elasticity jam 7 one end is fixed in vacuum pump body 1 by screw 8, is also fixed with rigid baffle 9 above elasticity jam 7, and rigid baffle 9 is positioned at relief opening 6 part and is upturned.Because elasticity jam 7 is sheet structures, Long-Time Service easily produces resiliently deformable, can either ensure that elasticity jam 7 amount of deformation is excessive, can ensure that again elasticity jam 7 resets in time by arranging rigid baffle 9, ensures that elasticity jam 7 uses for a long time.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. an automobile duplex pump, it is characterized in that: comprise the vacuum pump body and fuel pump body with the chamber that works alone, vacuum pump body and fuel pump body share same transmission shaft, transmission shaft is arranged with oil sealing the chamber of vacuum pump body and fuel pump body is separated, the transmission shaft being positioned at vacuum pump body is connected with vacuum pump rotor, vacuum pump body is provided with intakeport and relief opening, described intakeport is combined with one-way valve seat, nonreturn valve core assembly is provided with in one-way valve seat, described relief opening is coated with elasticity jam, and elasticity jam one end is fixed in vacuum pump body.
2. automobile duplex pump according to claim 1, it is characterized in that: described one-way valve seat is provided with air intake passage, air intake passage lower end is provided with the chamber that diameter is greater than air intake passage, described nonreturn valve core assembly is positioned at chamber, described nonreturn valve core assembly comprises nonreturn valve core, holddown spring, spring seat, nonreturn valve core is conflicted in the upper-end surface of chamber by holddown spring with shutoff air intake passage and chamber, spring seat is positioned at chamber lower end surface and is provided with guide protrusions, and guide protrusions stretches into holddown spring inside.
3. automobile duplex pump according to claim 2, is characterized in that: described elasticity jam one end is fixed by screws in vacuum pump body, and be also fixed with rigid baffle above elasticity jam, rigid baffle is positioned at air outlet portion and is upturned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520402159.6U CN204692013U (en) | 2015-06-11 | 2015-06-11 | Automobile duplex pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520402159.6U CN204692013U (en) | 2015-06-11 | 2015-06-11 | Automobile duplex pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204692013U true CN204692013U (en) | 2015-10-07 |
Family
ID=54232314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520402159.6U Expired - Fee Related CN204692013U (en) | 2015-06-11 | 2015-06-11 | Automobile duplex pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204692013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355367A (en) * | 2017-09-07 | 2017-11-17 | 绵阳富临精工机械股份有限公司 | A kind of electronic vacuum pump with check valve |
-
2015
- 2015-06-11 CN CN201520402159.6U patent/CN204692013U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355367A (en) * | 2017-09-07 | 2017-11-17 | 绵阳富临精工机械股份有限公司 | A kind of electronic vacuum pump with check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20170611 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |