CN203939657U - Automobile vacuum pump - Google Patents
Automobile vacuum pump Download PDFInfo
- Publication number
- CN203939657U CN203939657U CN201420346777.9U CN201420346777U CN203939657U CN 203939657 U CN203939657 U CN 203939657U CN 201420346777 U CN201420346777 U CN 201420346777U CN 203939657 U CN203939657 U CN 203939657U
- Authority
- CN
- China
- Prior art keywords
- pump housing
- pump
- elastic bumps
- piston
- piston shaft
- 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
Links
Landscapes
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Compressor (AREA)
Abstract
The utility model discloses a kind of automobile vacuum pump, comprise the pump housing and pump cover, pump cover and the pump housing are connected by screw, in the pump housing, be provided with piston, piston is connected with piston shaft, piston shaft is provided with spring seat and piston shaft sub-assembly away from one end of piston, spring seat is provided with the Returnning spring inconsistent with the pump housing, on piston shaft sub-assembly, be equipped with short pin, the pump housing is provided with two attaching clamps, between two attaching clamps, be also provided with seal bowl, attaching clamp is equipped with have strong market potential parallel with short pin, the pump housing is provided with respectively and has strong market potential, the support that short pin is rotatably connected, the pump housing be provided with pump cover in contour shape to adaptive holding flange, the inwall of pump cover side is provided with the some elastic bumps groups for the flange that is locked of group, every group of elastic bumps group is two hemispherical elastic bumps compositions.Wherein on pump cover, be provided with the elastic bumps group of holding flange locking, shared stressed on screw, reduced the probability of screw loosening, to make to connect more firm.
Description
Technical field
The utility model relates to a kind of pump, and more particularly, it relates to a kind of automobile vacuum pump.
Background technique
Automobile vacuum pump, comprise the pump housing and pump cover, described pump cover and the pump housing are connected by screw, in the described pump housing, be provided with piston, piston is connected with piston shaft, described piston shaft is provided with spring seat and piston shaft sub-assembly away from one end of piston, described spring seat is provided with the Returnning spring inconsistent with the pump housing, on described piston shaft sub-assembly, be equipped with short pin, the described pump housing is provided with two attaching clamps, between two attaching clamps, be also provided with seal bowl, described attaching clamp is equipped with have strong market potential parallel with short pin, the described pump housing is provided with respectively and has strong market potential, the support that short pin is rotatably connected, wherein pump cover is connected by simple screw with the pump housing, the power of internal piston is all born by screw, in long-term use, easily make screw loosening, it is not firm to cause connecting.
Model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of automobile vacuum pump, wherein on pump cover, is provided with the elastic bumps of holding flange locking, has shared stressed on screw, has reduced the probability of screw loosening, and to make to connect more firm.
For achieving the above object, the utility model provides following technological scheme: a kind of automobile vacuum pump, comprise the pump housing and pump cover, described pump cover and the pump housing are connected by screw, in the described pump housing, be provided with piston, piston is connected with piston shaft, described piston shaft is provided with spring seat and piston shaft sub-assembly away from one end of piston, described spring seat is provided with the Returnning spring inconsistent with the pump housing, on described piston shaft sub-assembly, be equipped with short pin, the described pump housing is provided with two attaching clamps, between two attaching clamps, be also provided with seal bowl, described attaching clamp is equipped with have strong market potential parallel with short pin, the described pump housing is provided with respectively and has strong market potential, the support that short pin is rotatably connected, the described pump housing be provided with pump cover in contour shape to adaptive holding flange, the inwall of described pump cover side is provided with several elastic bumps groups for the flange that is locked, every group of described elastic bumps group is two hemispherical elastic bumps compositions.
By adopting technique scheme, in the process of installing, pump cover lid is to holding flange, wherein elastic bumps can be conflicted with holding flange side, owing to being after under the metamorphosis of elastic bumps, therefore pump cover covers put in place completely, elastic bumps and holding flange fasten clamping, play the effect of locking, due to the existence of elastic bumps, share the part stress on screw, reduce the probability of screw loosening, even if screw has occurred loosening, by the locking of elastic bumps and holding flange, also can't affect tight connection the between pump cover and the pump housing, ensure the sealing of vacuum pump, it can normally be moved
The utility model is further set to: between described elastic bumps and pump cover bottom surface, offer groove.
By adopting technique scheme, in the process of buckling pump cover, resistance is less, and does not affect locking effect, can more intuitively must judge whether pump cover covers in addition put in place by this groove.
The utility model is further set to: described holding flange is provided with guiding surface.
By adopting technique scheme, reduce the resistance of pump cover in installation process by guiding surface, convenient installation.
The utility model is further set to: the quantity of described elastic bumps is 14, and described groove quantity is 7.
The utility model is further set to: described Returnning spring comprises coaxial big spring and little spring, and the Hand of spiral between described big spring and little spring is contrary.
By adopting technique scheme, big spring and little spring are set can increase the fatigue resistance of spring, extends spring life.
The utility model is further set to: described piston shaft sub-assembly comprises the fixed base fixing with piston shaft and is positioned at the roller on fixed base.
By adopting technique scheme, roller is set, adopt rolling friction, transmission efficiency is high.
Brief description of the drawings
Fig. 1 is the utility model automobile vacuum pump embodiment's front view;
Fig. 2 is A-A sectional view in Fig. 1;
Fig. 3 is the enlarged view at B place in Fig. 2;
Fig. 4 is the utility model automobile vacuum pump embodiment's rear view;
Fig. 5 is the pump cover structure schematic diagram in the utility model automobile vacuum pump embodiment.
Reference character: 1, the pump housing; 11, attaching clamp; 12, holding flange; 121, guiding surface; 2, pump cover; 21, elastic bumps group; 211, elastic bumps; 2111, the first elastic bumps; 2112, the second elastic bumps; 22, groove; 3, piston; 31, piston shaft; 32, piston shaft sub-assembly; 321, fixed base; 322, roller; 33, spring seat; 34, big spring; 35, little spring; 4, have strong market potential; 5, short pin; 6, support; 7, seal bowl.
Embodiment
Referring to figs. 1 through Fig. 5, the utility model automobile vacuum pump embodiment is described further.
A kind of automobile vacuum pump, comprise the pump housing 1 and pump cover 2, described pump cover 2 is connected by screw with the pump housing 1, in the described pump housing 1, be provided with piston 3, piston 3 is connected with piston shaft sub-assembly 32, described piston shaft sub-assembly 32 is provided with spring seat 33 and piston shaft sub-assembly 32 sub-assemblys away from one end of piston 3, described spring seat 33 is provided with the Returnning spring inconsistent with the pump housing 1, on described piston shaft sub-assembly 32 sub-assemblys, be equipped with short pin 5, the described pump housing 1 is provided with two attaching clamps 11, between two attaching clamps 11, be also provided with seal bowl 7, described attaching clamp 11 is equipped with parallel with short pin 5 has strong market potential 4, the described pump housing 1 is provided with respectively and has strong market potential 4, the support 6 that short pin 5 is rotatably connected, the described pump housing 1 is provided with the interior contour shape of pump cover 2 to adaptive holding flange 12, the inwall of described pump cover 2 sides is provided with several elastic bumps groups 21 for the flange 12 that is locked, described every group of elastic bumps group 21 is that two hemispherical elastic bumps 211 form.
By adopting technique scheme, in the process of installing, elastic bumps 211 is divided into the first elastic bumps 2111 and the second elastic bumps 2112, the first elastic bumps 2111 arranges near pump cover 2 bottoms, and the first elastic bumps 2111 equals the thickness of holding flange 12 to the distance of pump cover 2 bottoms, when pump cover 2 covers on holding flange 12, wherein elastic bumps 211 can be conflicted with holding flange 12 sides, owing to being after under the metamorphosis of elastic bumps 211, therefore pump cover 2 covers put in place completely, the first elastic bumps 2111 fastens clamping with holding flange 12, play the effect of locking, due to the existence of elastic bumps 211, share the part stress on screw, reduce the probability of screw loosening, even if screw has occurred loosening, by the locking of elastic bumps and holding flange 12, also can't affect tight connection the between pump cover 2 and the pump housing 1, ensure the sealing of vacuum pump, it can normally be moved
Between described elastic bumps and pump cover 2 bottom surfaces, offer groove 22.
By adopting technique scheme, buckling in the process of pump cover 2, resistance is less, and does not affect locking effect, can more intuitively must judge whether pump cover 2 covers in addition put in place by this groove 22.
As preferred version, reduce the resistance of pump cover 2 in installation process by guiding surface 121, convenient installation.Holding flange 12 in the present embodiment is provided with guiding surface 121, can effectively reduce the resistance of pump cover 2 in installation process by guiding surface 121, convenient installation, and guiding surface 121 also can directly be substituted by guiding groove.
The quantity of described elastic bumps is 14, and described groove 22 quantity are 7.
The utility model is further set to: described Returnning spring comprises coaxial big spring 34 and little spring 35, and the Hand of spiral between described big spring 34 and little spring 35 is contrary.
By adopting technique scheme, big spring 34 and little spring 35 are set can increase the fatigue resistance of spring, extends spring life.
Described piston shaft sub-assembly 32 sub-assemblys comprise the fixed base 321 fixing with piston shaft sub-assembly 32 and are positioned at the roller 322 on fixed base 321.
By adopting technique scheme, roller 322 is set, adopt rolling friction, transmission efficiency is high.
Claims (6)
1. an automobile vacuum pump, it is characterized in that: comprise the pump housing and pump cover, described pump cover and the pump housing are connected by screw, in the described pump housing, be provided with piston, piston is connected with piston shaft, described piston shaft is provided with spring seat and piston shaft sub-assembly away from one end of piston, described spring seat is provided with the Returnning spring inconsistent with the pump housing, on described piston shaft sub-assembly, be equipped with short pin, the described pump housing is provided with two attaching clamps, between two attaching clamps, be also provided with seal bowl, described attaching clamp is equipped with have strong market potential parallel with short pin, the described pump housing is provided with respectively and has strong market potential, the support that short pin is rotatably connected, the described pump housing be provided with pump cover in contour shape to adaptive holding flange, the inwall of described pump cover side is provided with several elastic bumps groups for the flange that is locked, every group of described elastic bumps group is two hemispherical elastic bumps compositions.
2. automobile vacuum pump according to claim 1, is characterized in that: between described elastic bumps and pump cover bottom surface, offer groove.
3. automobile vacuum pump according to claim 2, is characterized in that: described holding flange is provided with guiding surface.
4. automobile vacuum pump according to claim 3, is characterized in that: the quantity of described elastic bumps is 14, and described groove quantity is 7.
5. automobile vacuum pump according to claim 4, is characterized in that: described Returnning spring comprises coaxial big spring and little spring, and the Hand of spiral between described big spring and little spring is contrary.
6. automobile vacuum pump according to claim 5, is characterized in that: described piston shaft sub-assembly comprises the fixed base fixing with piston shaft and is positioned at the roller on fixed base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420346777.9U CN203939657U (en) | 2014-06-25 | 2014-06-25 | Automobile vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420346777.9U CN203939657U (en) | 2014-06-25 | 2014-06-25 | Automobile vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203939657U true CN203939657U (en) | 2014-11-12 |
Family
ID=51858973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420346777.9U Expired - Fee Related CN203939657U (en) | 2014-06-25 | 2014-06-25 | Automobile vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203939657U (en) |
-
2014
- 2014-06-25 CN CN201420346777.9U patent/CN203939657U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204876927U (en) | Car is shaken hands outdoors | |
| CN204876926U (en) | Car is shaken hands outdoors | |
| CN203422545U (en) | Soft light box clamping device with on-camera flash lamp holder fixing part | |
| CN203939657U (en) | Automobile vacuum pump | |
| CN204953975U (en) | A V type location frock that is arranged in motor frame lug or end cover lug to decide | |
| CN203939651U (en) | Automobile vacuum pump | |
| CN205274671U (en) | Soft food picks up mechanism | |
| CN204216223U8 (en) | A kind of antenna structure of panel computer | |
| CN205065041U (en) | Fixed oil pipe's pipe clamp on car fuel tank | |
| CN204025291U (en) | A kind of Novel self-lock plate nut | |
| CN201475496U (en) | Plastic pipe clamp | |
| CN204355157U (en) | The automotive plastic parts anchor fitting of branched frame is coordinated based on single rubber pad | |
| CN203207331U (en) | Button | |
| CN204004877U (en) | A kind of female adapter | |
| CN204200924U (en) | A kind of novel hand adjustment cap | |
| CN203442702U (en) | Mounting structure of headlight decorative ring | |
| CN202118816U (en) | Novel watertight lamp | |
| CN204605516U (en) | A kind of automobile clutch pedal right support | |
| CN202098496U (en) | Mounting structure for front panel and wind shield of motorcycle | |
| CN203969796U (en) | The portable seat that a kind of Spliced movable connects | |
| CN205533698U (en) | OCV valve bolt clamping structure | |
| CN206125189U (en) | Wheel cover | |
| CN202608619U (en) | Clamping sheet for foot pad and omnibearing three-dimensional enclosing foot pad with clamping sheet for foot pad | |
| CN205363666U (en) | Auto -parts's sticiss frock structure | |
| CN105710458A (en) | Diesel engine connecting rod hobbing clamping seat |
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: 20141112 Termination date: 20180625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |