CN2874061Y - Vacuum pump piston for water pump - Google Patents
Vacuum pump piston for water pump Download PDFInfo
- Publication number
- CN2874061Y CN2874061Y CN 200520047578 CN200520047578U CN2874061Y CN 2874061 Y CN2874061 Y CN 2874061Y CN 200520047578 CN200520047578 CN 200520047578 CN 200520047578 U CN200520047578 U CN 200520047578U CN 2874061 Y CN2874061 Y CN 2874061Y
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- CN
- China
- Prior art keywords
- piston
- valve
- hole
- valve block
- utility
- 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 relates to a piston of vacuum pump for a water pump, which comprises a piston and a link rod. The utility model is characterized in that, at out edge of the outside of the piston, a partitioning diaphragm is provided. The partitioning diaphragm is fixed on the piston. The piston is provided with an air exhaust valve, the outer of the seat of the air exhaust valve is a concave arc, in middle of which a sunk hole is provided. A bolt is provided to press tightly a valve block that is fixed closely on the arc. On the valve seat, a through hole is provided. One side of the through hole faces the valve block, another side faces the inner side of the valve seat. The valve block is of rubber and in a section that is thicker in center and gradually thinner towards edges. The diaphragm is of rubber in high elasticity. The utility model is of simple structure, reliable use and low production cost.
Description
Technical field
The utility model relates to a kind of piston, particularly a kind of vacuum pump piston that is used for water pump.
Background technique
At present for convenience of water pump air in the emptying pump chamber in bringing into use, disposed vacuum pump on many water pumps, vacuum pump is to rely on piston reciprocating negative pressure that produces in air chamber, need at work to press down the air in the air chamber is discharged with piston, piston pulls out outward then, air chamber is become negative pressure, therefore need the complicated venting gas appliance of a cover on the existing vacuum air bottle of pump, and increased considerably production cost of products.
Summary of the invention
The purpose of this utility model is to solve the problem that the complicated existing cost of production of exhaust structure on the vacuum pump that is used for water pump in the prior art rises, and a kind of vacuum pump piston that is used for water pump is provided.A kind of vacuum pump piston that is used for water pump of the utility model design, comprise piston, connecting rod, it is characterized in that: a circle barrier film is arranged on the piston outer ledge, barrier film by the piston cap clamping on piston, outlet valve is arranged on piston, the outside of the valve seat of outlet valve is the cambered surface of indent, there is a counterbore in central authorities in cambered surface, have a bolt to compress a valve block of being close on the cambered surface, through hole is arranged on the valve seat, the one side of through hole is with respect to valve block, the another side of through hole is with respect to the valve seat inboard, valve block is a sheet rubber, and it is thick gradually thin toward the edge that the cross section of valve block is central authorities, and barrier film is a high elastic rubber.The utility model has the advantages that to enable use simple in structure reliable, low production cost.
Description of drawings
Below in conjunction with drawings and Examples the utility model is elaborated,
Accompanying drawing is a structural representation of the present utility model,
Embodiment
Comprise piston 1, connecting rod 2 among the figure, it is characterized in that: a circle barrier film 3 is arranged on piston 1 outer ledge, barrier film 3 by piston cap 4 clampings on piston 1, outlet valve 5 is arranged on piston 1, the outside of the valve seat 6 of outlet valve 5 is the cambered surface of indent, there is a counterbore 7 in central authorities in cambered surface, there is a bolt 8 to compress a valve block 9 of being close on the cambered surface, through hole 10 is arranged on the valve seat 6, the one side of through hole 10 is with respect to valve block 9, and the another side of through hole 10 is with respect to valve seat 6 inboards, and valve block 9 is a sheet rubber, it is thick gradually thin toward the edge that the cross section of valve block 9 is central authorities, and barrier film 3 is a high elastic rubber.
The utility model is installed on the air chamber during use, barrier film 3 on piston 1 outer ledge is fixed on the edge of air chamber, pulling connecting rod 2, valve block 9 when piston 1 presses down on the outlet valve 5 is washed open from through hole 10 by the pressurized air in the air chamber, air in the air chamber is discharged from, when drawing outside the piston 1, extraneous barometric pressure is close to valve block 9 on the inner concave arc surface of valve seat 6, with through hole 10 sealings, and barrier film 3 is a high elastic rubber, along with moving up and down of piston 1, the negative pressure of air chamber is finished in occluded air chamber all the time.
Claims (2)
1, a kind of vacuum pump piston that is used for water pump, comprise piston, connecting rod, it is characterized in that: a circle barrier film is arranged on the piston outer ledge, barrier film by the piston cap clamping on piston, outlet valve is arranged on piston, the outside of the valve seat of outlet valve is the cambered surface of indent, there is a counterbore in central authorities in cambered surface, there is a bolt to compress a valve block of being close on the cambered surface, through hole is arranged on the valve seat, and the one side of through hole is with respect to valve block, and the another side of through hole is with respect to the valve seat inboard, valve block is a sheet rubber, and it is thick gradually thin toward the edge that the cross section of valve block is central authorities.
2, by the described a kind of vacuum pump piston that is used for water pump of claim 1, it is characterized in that: barrier film is a high elastic rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520047578 CN2874061Y (en) | 2005-12-15 | 2005-12-15 | Vacuum pump piston for water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520047578 CN2874061Y (en) | 2005-12-15 | 2005-12-15 | Vacuum pump piston for water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2874061Y true CN2874061Y (en) | 2007-02-28 |
Family
ID=37780659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520047578 Expired - Fee Related CN2874061Y (en) | 2005-12-15 | 2005-12-15 | Vacuum pump piston for water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2874061Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194652A (en) * | 2016-04-15 | 2016-12-07 | 宁波新邦工具有限公司 | A kind of inflator pump using taper valve block |
| CN114382684A (en) * | 2020-10-16 | 2022-04-22 | 日本电产株式会社 | Pump and electric product |
-
2005
- 2005-12-15 CN CN 200520047578 patent/CN2874061Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194652A (en) * | 2016-04-15 | 2016-12-07 | 宁波新邦工具有限公司 | A kind of inflator pump using taper valve block |
| CN114382684A (en) * | 2020-10-16 | 2022-04-22 | 日本电产株式会社 | Pump and electric product |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070228 Termination date: 20100115 |