CN202061603U - Oil distribution valve of excess pressure pump - Google Patents
Oil distribution valve of excess pressure pump Download PDFInfo
- Publication number
- CN202061603U CN202061603U CN2011200915214U CN201120091521U CN202061603U CN 202061603 U CN202061603 U CN 202061603U CN 2011200915214 U CN2011200915214 U CN 2011200915214U CN 201120091521 U CN201120091521 U CN 201120091521U CN 202061603 U CN202061603 U CN 202061603U
- Authority
- CN
- China
- Prior art keywords
- valve
- check valve
- valve body
- pressure pump
- excess pressure
- 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 an oil distribution valve of an excess pressure pump, which comprises a valve body, a check valve and an end cap. The check valve is arranged inside the valve body, the end cap is arranged above the check valve and comprises a gland and a seal cap, wherein the gland is pressed on and connected with the check valve, the seal cap is arranged above the gland, the lower portion of the seal cap is in the shape of an inverted cone, and a conical surface of the lower portion of the seal cap is in linear sealing with the valve body. Sealing between the conical surface of the seal cap and the valve body substitutes sealing of an O-shaped ring, so that sealing effect is excellent, maintenance rate of the oil distribution valve of the excess pressure pump is reduced greatly, and the oil distribution valve is long in service life.
Description
Technical field
The utility model is particularly related to the excess pressure pump oil distributing valve that uses on a kind of cubic hinge press.
Background technology
The excess pressure pump oil distributing valve that uses on the big cylinder diameter cubic hinge press as shown in Figure 1, comprise valve body 1 and the check valve 2 that is installed in valve body 1 inside, valve body 1 is provided with fuel feed hole 6 and oil outlet 5, check valve 2 upper ends are provided with end cap 3, end cap 3 is crimped on above the check valve 2, be provided with spring 7 between end cap 3 and the check valve spool 2-1, end cap 3 is by O type circle 4 and valve body 1 sealing, and check valve 2 outer walls are by O type circle 4 and valve body 1 sealing.Shortcoming is that end cap O type circle is fragile, and excess pressure pump end cap oil spill rate height causes excess pressure pump maintenance rate height.
The utility model content
The purpose of this utility model provides the excess pressure pump oil distributing valve of a kind of good seal performance, long service life.
For achieving the above object, the technical solution adopted in the utility model is:
The excess pressure pump oil distributing valve, the end cap that comprises the check valve of valve body, valve inner and be located at the check valve top, end cap comprises friction top and seal cover, friction top is crimped on the check valve, the friction top top is provided with seal cover, and the seal cover bottom is back taper and the conical surface and valve body formation linear sealing.
Friction top and valve body are crimped on the check valve by screwed connection.
The valve body lower portion internal diameter is less than forming step between top internal diameter, top and the bottom, and check valve outer wall lower outer diameter is less than conical surface transition between top external diameter, top and the bottom, and the conical surface of check valve outer wall cooperates with edge in the step of valve body.
The seal cover bottom is back taper and the conical surface and valve body formation linear sealing in the utility model, has replaced the sealing of O type circle, good sealing effect; Friction top is crimped on the check valve by screwed connection, can effectively guarantee the excellent sealing of check valve and valve body, and the conical surface of check valve outer wall cooperates with edge in the step of valve body realizes linear sealing, replaces the sealing of O type circle, good sealing effect; The utility model greatly reduces the maintenance rate of excess pressure pump oil distributing valve, long service life.
Description of drawings
Fig. 1 is existing oil distributing valve structural representation;
Fig. 2 is the utility model structural representation.
The specific embodiment
As shown in Figure 2, the excess pressure pump oil distributing valve, comprise the check valve 2 of valve body 1, valve body 1 inside and the end cap of being located at check valve 2 tops, end cap comprises friction top 8 and seal cover 9, friction top 8 is crimped on the check valve 2 by screwed connection with valve body 1, friction top 8 tops are provided with seal cover 9, and seal cover 9 bottoms are that the back taper and the conical surface 10 form linear sealing with valve body 1.Valve body 1 bottom internal diameter is less than forming step between top internal diameter, top and the bottom, and check valve 2 outer wall lower outer diameter are less than conical surface transition between top external diameter, top and the bottom, and the conical surface of check valve 2 outer walls cooperates with edge in the step of valve body 1.
During the utility model work, oil enters valve body 1 and check valve 2 from fuel feed hole 6, backs down check valve spool 2-1 by pressure, flows out through oil outlet 5 by the oilhole on the friction top 8; The friction top 8 that the utility model adopts compresses check valve 2, the conical surface 10 of seal cover 9 is connected with valve body 1 usefulness screw 11, the conical surface of check valve 2 outer walls cooperates with edge in the step of valve body 1 realizes linear sealing, good seal performance, compare with traditional O type circle sealing, greatly reduce the maintenance rate of excess pressure pump oil distributing valve, long service life.
Claims (3)
1. excess pressure pump oil distributing valve, the end cap that comprises the check valve of valve body, valve inner and be located at the check valve top, it is characterized in that, end cap comprises friction top and seal cover, friction top is crimped on the check valve, the friction top top is provided with seal cover, and the seal cover bottom is back taper and the conical surface and valve body formation linear sealing.
2. excess pressure pump oil distributing valve as claimed in claim 1 is characterized in that friction top and valve body are crimped on the check valve by screwed connection.
3. excess pressure pump oil distributing valve as claimed in claim 1 or 2, it is characterized in that, the valve body lower portion internal diameter is less than forming step between top internal diameter, top and the bottom, check valve outer wall lower outer diameter is less than conical surface transition between top external diameter, top and the bottom, and the conical surface of check valve outer wall cooperates with edge in the step of valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200915214U CN202061603U (en) | 2011-03-31 | 2011-03-31 | Oil distribution valve of excess pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200915214U CN202061603U (en) | 2011-03-31 | 2011-03-31 | Oil distribution valve of excess pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202061603U true CN202061603U (en) | 2011-12-07 |
Family
ID=45055485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200915214U Expired - Fee Related CN202061603U (en) | 2011-03-31 | 2011-03-31 | Oil distribution valve of excess pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202061603U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298968A (en) * | 2015-11-24 | 2016-02-03 | 岳文智 | Industrial hydraulic oil delivery device |
-
2011
- 2011-03-31 CN CN2011200915214U patent/CN202061603U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298968A (en) * | 2015-11-24 | 2016-02-03 | 岳文智 | Industrial hydraulic oil delivery device |
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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: 20111207 Termination date: 20170331 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |