CN203962419U - A kind of automobile vacuum pump composite air intake valve - Google Patents
A kind of automobile vacuum pump composite air intake valve Download PDFInfo
- Publication number
- CN203962419U CN203962419U CN201420394808.8U CN201420394808U CN203962419U CN 203962419 U CN203962419 U CN 203962419U CN 201420394808 U CN201420394808 U CN 201420394808U CN 203962419 U CN203962419 U CN 203962419U
- Authority
- CN
- China
- Prior art keywords
- valve
- air intake
- composite air
- vacuum pump
- returnning spring
- 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- Withdrawn - After Issue
Links
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
- Check Valves (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model discloses a kind of automobile vacuum pump composite air intake valve, solved traditional suction valve poorly sealed, cause lubricant oil to enter the problem of brake vacuum chamber, described composite air intake valve is arranged in intake duct, upper end is also plugged with connection for breather pipe, described composite air intake valve comprises plane individual event valve, hat ball-type check valve, the first Returnning spring, the second Returnning spring and sleeve, described the first Returnning spring is set on the retainer in intake duct, the other end is set on plane one-way valve, described plane one-way valve contacts and forms primary sealing area with the spring fitting face downside arranging in sleeve, the upper side of described spring fitting face is arranged with the second Returnning spring, the other end of described the second Returnning spring is set on hat ball-type check valve, the sphere of described hat ball-type check valve contacts formation secondary sealing area with the conical surface in connection for breather pipe, by first, secondary sealing area coordinates the sealing that has increased suction valve, reduce lubricant oil and entered brake vacuum chamber.
Description
Technical field
The utility model relates to the composite air intake valve of the intaking valve structure of automobile vacuum pump, particularly a kind of bivalve.
Background technique
Fig. 4 is the structural drawing of existing automotive sliding vane vacuum pump, breathing pipe is connected to braking automobile vacuum chamber (not marking in figure), the rotor of vacuum pump drives slide plate to rotate, vacuum pump suction chamber is connected to plane breather cheek valve through pipeline, along with rotating suction chamber volume, vacuum pump constantly expands, gas pressure declines, when gas pressure drops to that the pressure in vacuum chamber is low than brake, plane breather cheek valve overcomes the opened by pressure of return spring, air stream in brake vacuum chamber is through suction valve, in passage enters suction chamber, then slide plate compresses it, suction valve cuts out, gas is through outlet valve, be discharged in atmosphere and go.Vacuum pump is when work, for lubricated and sealing, in vacuum pump suction chamber, to add a small amount of lubricant oil, when vacuum pump stops operating, pressure in suction chamber is always higher than the gas pressure in brake vacuum chamber, vacuum pump time that stops operating is longer, by outlet valve and slide plate gap, enter the air of suction chamber more, the pressure of the pressure ratio brake vacuum indoor gas of air inlet indoor gas is higher, when plane one-way valve and valve base sealing are tight, for example there is tiny foreign matter on sealing surface, lubricant oil in suction chamber is in suction chamber under gas pressure effect, flow back in brake vacuum chamber, in long brake vacuum chamber of time one, can gather many lubricant oil, reduced the working efficiency of vacuum pump, often cause brake fault simultaneously.
Model utility content
The purpose of this utility model is to provide a kind of and reduces lubricant oil in vacuum pump and flow back to the indoor automobile vacuum pump composite air intake valve of vacuum automobile.
For reaching this object, the utility model by the following technical solutions:
A kind of automobile vacuum pump composite air intake valve, described composite air intake valve is arranged in the intake duct of vacuum pump, one end of composite air intake valve is connected with connection for breather pipe, described composite air intake valve comprises plane individual event valve, hat ball-type check valve, the first Returnning spring, the second Returnning spring and sleeve, described the first Returnning spring is set on the retainer in intake duct, the other end is set on plane one-way valve, described plane one-way valve contacts and forms primary sealing area with the spring fitting face downside arranging in sleeve, the upper side of described spring fitting face is arranged with the second Returnning spring, the other end of described the second Returnning spring is set on hat ball-type check valve, the sphere of described hat ball-type check valve contacts formation secondary sealing area with the conical surface in connection for breather pipe.
Further, described hat ball-type check valve is comprised of hemisphere and one section of cylinder, and described the second Returnning spring is enclosed within on described cylinder, and the other end of described the second spring is enclosed within on several location convex shoulders that arrange on sleeve spring attachment face.
Further, described sleeve is moulding, and on the spring fitting face in described sleeve, centre offers ventilation endoporus, is provided with 3-4 location convex shoulder on the leading flank of described spring fitting face.
Further, described connection for breather pipe is fixed by screws on described intake duct, and described connection for breather pipe below is inserted in described sleeve.
Further, described plane one-way valve and hat ball-type check valve are plastics or rubber parts.
The beneficial effects of the utility model are: described automobile vacuum pump composite air intake valve, be provided with plane one-way valve and hat ball-type check valve, and after vacuum pump stops operating, plane one-way valve first closes under the first action of reset spring, and hat ball-type check valve closes again.After plane one-way valve is closed under the first action of reset spring, before hat ball-type check valve does not close, between hat ball-type check valve and plane one-way valve, in the air pressure in space and the vacuum chamber that brakes, gas pressure is the same, so hat ball-type check valve closes again, in the gas pressure here and brake vacuum chamber, the pressure difference of gas is just very little, even if leak into the space before hat ball valve under the gas pressure effect of lubricant oil in suction chamber from plane one-way valve, because gas pressure is very little with the gas pressure difference in brake vacuum chamber herein, so lubricant oil can not continue to brake vacuum chamber in seepage.Under vacuum pump, during task, first the lubricant oil here will enter vacuum pump air aspiration cavity and discharge through outlet valve, thereby can not gather, much not have influence on brakes
Accompanying drawing explanation
Fig. 1 is the scheme of installation of the automobile vacuum pump composite air intake valve that provides of the utility model embodiment;
Fig. 2 is the structural representation of the automobile vacuum pump composite air intake valve that provides of the utility model embodiment;
Fig. 3 is the structural representation of the sleeve of the automobile vacuum pump composite air intake valve that provides of the utility model embodiment;
Fig. 4 is the scheme of installation of existing automobile vacuum pump composite air intake valve.
In figure, 1, rotor; 2, slide plate; 3, induction chamber; 4, the pump housing; 5, intake duct; 6, retainer; 7, the first Returnning spring; 8, plane one-way valve; 81, primary sealing area; 9, sleeve; 91, spring fitting face; 92, location convex shoulder; 93, ventilation endoporus; 10, the second Returnning spring; 11, hat ball-type check valve; 111, secondary sealing area; 12, connection for breather pipe; 121, the conical surface; 13, screw; 14, outlet valve.
Embodiment
Below in conjunction with accompanying drawing and by embodiment, further illustrate the technical solution of the utility model.
As shown in Figure 1 to Figure 3, described automobile vacuum pump composite air intake valve is arranged in intake duct 5 fixing on the pump housing 4 of automobile vacuum pump, described connection for breather pipe 12 is also inserted in described intake duct 5 and is fixed on intake duct 5 by screw 13, the lower end of described connection for breather pipe 12 is inserted in described composite air intake valve, described composite air intake valve comprises plane one-way valve 8, hat ball-type check valve 11, the first Returnning spring 7, the second Returnning spring 10 and sleeve 9, the sleeve 9 of described molding and forming comprises spring fitting face 91, on spring fitting face 91, offer ventilation endoporus 93, on described spring fitting face 91 upper sides be provided with four location convex shoulders 92, described the first Returnning spring 7 is enclosed within on the retainer 6 in intake duct 5, the other end is enclosed within on described plane one-way valve 8, described plane one-way valve 8 upper ends contact with the downside of the spring fitting face 91 of described sleeve 9 and form primary sealing area 81, on the location convex shoulder 92 of the upper side of described spring fitting face 91, overlapping the second Returnning spring 10, the other end of the second Returnning spring 10 be enclosed within on the cylinder of described hat ball-type check valve 11, on described hat ball-type check valve 11, be also provided with a hemisphere, the hemisphere of described hat ball-type check valve 11 contacts with the conical surface 121 arranging on connection for breather pipe 12, form secondary sealing area 111.
Described hat ball-type check valve 11 and plane one-way valve 8 are made also and can be made of plastics by rubber.
When described automobile vacuum pump composite air intake valve uses, when vacuum pump rotates, rotor 1 drives slide plate 2 to rotate counterclockwise vacuum pump suction chamber 3, volume increases, pressure decreased, when pressure is low, arrive certain value, plane one-way valve 8 overcomes the pressure of the first Returnning spring 7, after unlatching, pressure drop in space between plane one-way valve 8 and hat ball-type check valve 11, thereby make to be preced with the opened by pressure that ball-type check valve 11 overcomes the second Returnning spring 10, air in brake vacuum chamber is through the plane one-way valve 8 of opening and the hat ball-type check valve 11 of opening, flow in induction chamber 3, along with slide plate 2 rotates, the volume of induction chamber 3 from large to small, this part air is compressed in pressing chamber, in induction chamber 3, gas pressure increases, plane one-way valve 8 and hat ball-type check valve 11 are successively closed, the air of compression and a small amount of lubricant oil are discharged in atmosphere through outlet valve 14.The gas of lubricant oil and discharge is separated to be entered again.So continuous circulation vacuum chamber that makes to brake keeps certain degree of vacuum.
After vacuum pump stops operating, plane one-way valve 8 first closes under the first Returnning spring 7 effects, and hat ball-type check valve 11 closes again.After plane one-way valve 8 is closed under the effect of the first Returnning spring 7, before hat ball-type check valve 11 does not close, in air pressure between hat ball-type check valve 11 and plane one-way valve 8 in space and the vacuum chamber that brakes, gas pressure is the same, so hat ball-type check valve 11 closes again, between hat ball-type check valve 11 and plane one-way valve 8, in the gas pressure in space and brake vacuum chamber, the pressure difference of gas is just very little, even if leak into from plane one-way valve 8 under the gas pressure effect of lubricant oil in induction chamber 3 in the space before hat ball valve 11, because gas pressure is very little with the gas pressure difference in brake vacuum chamber herein, so lubricant oil can not continue to brake vacuum chamber in seepage.Under vacuum pump, during task, first the lubricant oil here will enter vacuum pump induction chamber 3 and discharge through outlet valve 14, flow back to the chance in brake vacuum chamber, thereby reduced brake fault so greatly reduce lubricant oil.
Below only with embodiment, the utility model is illustrated, but the utility model is not limited to above-mentioned size and outward appearance illustration, more should not form any restriction of the present utility model.As long as within any improvement that the utility model is done or modification all belong to the protection domain of the utility model claim opinion.
Claims (5)
1. an automobile vacuum pump composite air intake valve, described composite air intake valve is arranged in the intake duct of vacuum pump, one end of composite air intake valve is connected with connection for breather pipe, it is characterized in that: described composite air intake valve comprises plane individual event valve, hat ball-type check valve, the first Returnning spring, the second Returnning spring and sleeve, described the first Returnning spring is set on the retainer in intake duct, the other end is set on plane one-way valve, described plane one-way valve contacts and forms primary sealing area with the spring fitting face downside arranging in sleeve, the upper side of described spring fitting face is arranged with the second Returnning spring, the other end of described the second Returnning spring is set on hat ball-type check valve, the sphere of described hat ball-type check valve contacts formation secondary sealing area with the conical surface in connection for breather pipe.
2. automobile vacuum pump composite air intake valve according to claim 1, it is characterized in that: described hat ball-type check valve is comprised of hemisphere and one section of cylinder, described the second Returnning spring is enclosed within on described cylinder, and the other end of described the second Returnning spring is enclosed within on several location convex shoulders that arrange on sleeve spring attachment face.
3. automobile vacuum pump composite air intake valve according to claim 1 and 2, it is characterized in that: described sleeve is moulding, in the middle of on spring fitting face in described sleeve, offer ventilation endoporus, on the upper side of described spring fitting face, be provided with 3-4 location convex shoulder.
4. automobile vacuum pump composite air intake valve according to claim 1, is characterized in that: described connection for breather pipe is fixed by screws on described intake duct, and described connection for breather pipe below is inserted in described sleeve.
5. automobile vacuum pump composite air intake valve according to claim 1, is characterized in that: described plane one-way valve and hat ball-type check valve are plastics or rubber parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420394808.8U CN203962419U (en) | 2014-07-16 | 2014-07-16 | A kind of automobile vacuum pump composite air intake valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420394808.8U CN203962419U (en) | 2014-07-16 | 2014-07-16 | A kind of automobile vacuum pump composite air intake valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203962419U true CN203962419U (en) | 2014-11-26 |
Family
ID=51923013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420394808.8U Withdrawn - After Issue CN203962419U (en) | 2014-07-16 | 2014-07-16 | A kind of automobile vacuum pump composite air intake valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203962419U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088795A (en) * | 2014-07-16 | 2014-10-08 | 无锡明治泵业有限公司 | Composite air intake valve of automobile vacuum pump |
-
2014
- 2014-07-16 CN CN201420394808.8U patent/CN203962419U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088795A (en) * | 2014-07-16 | 2014-10-08 | 无锡明治泵业有限公司 | Composite air intake valve of automobile vacuum pump |
| CN104088795B (en) * | 2014-07-16 | 2016-10-05 | 无锡明治泵业有限公司 | A kind of automobile vacuum pump composite air intake valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202326110U (en) | Combined admission valve of air compressor | |
| CN101680446B (en) | Piston air compressor | |
| CN207229339U (en) | A kind of water cooled cylinder structure | |
| CN203962419U (en) | A kind of automobile vacuum pump composite air intake valve | |
| CN204025052U (en) | Two-stage enthalpy increasing rotor-type compressor and air conditioner | |
| CN202360357U (en) | Air valve type check valve for piston type compressor | |
| CN203655980U (en) | Spring brake air chamber inner breathing device | |
| CN106855143A (en) | A kind of diaphragm check valve | |
| CN201288665Y (en) | Rotary compressor cylinder | |
| CN104088795A (en) | Composite air intake valve of automobile vacuum pump | |
| CN202946342U (en) | Oil-free compressor | |
| CN204878902U (en) | Intelligent pressure regulating valve | |
| CN205578682U (en) | Derailleur breather plug | |
| CN202746151U (en) | Air valve of compressor | |
| CN205731472U (en) | A kind of Novel positive pressure Strategy of Ball Mill Coal Pulverizing System add steel ball device | |
| CN211259750U (en) | One-way interface gas circuit replacing device | |
| CN204140461U (en) | Novel material conveying centrifugal blower | |
| CN208982704U (en) | A kind of semiconductor waste gas processing equipment check-valves | |
| CN203239534U (en) | Integrated cylinder body component of diaphragm compressor with single cylinder head | |
| CN102650277B (en) | Compound compressor and relief valve | |
| CN207728946U (en) | A kind of wind power ganged hydraulic control spray valve | |
| CN202300654U (en) | State switching valve and system | |
| CN206290971U (en) | The defeated plenum system of compressor | |
| CN204357711U (en) | A kind of energy-saving frequency conversion screw machine suction valve | |
| CN202946343U (en) | Novel oil-free compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141126 Effective date of abandoning: 20161005 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |