CN2400603Y - Pump packing structure - Google Patents
Pump packing structure Download PDFInfo
- Publication number
- CN2400603Y CN2400603Y CN 98246428 CN98246428U CN2400603Y CN 2400603 Y CN2400603 Y CN 2400603Y CN 98246428 CN98246428 CN 98246428 CN 98246428 U CN98246428 U CN 98246428U CN 2400603 Y CN2400603 Y CN 2400603Y
- Authority
- CN
- China
- Prior art keywords
- valve cover
- valve
- utility
- model
- cover
- 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
- Details Of Reciprocating Pumps (AREA)
- Check Valves (AREA)
Abstract
The utility model discloses a valve cover for sealing a pump, particularly a spring valve cover which can be stretched and contracted. The utility model changes the primary steel valve cover into the spring valve cover which can be stretched and contracted. When liquid enters from a liquid inlet, a valve ball and the valve cover can synchronously generate displacement, and the ball and the cover can not generate any collision. Therefore, the utility model can prolong the service life of the valve portions. Additionally, when a plunger is moved to reach a top dead point, a liquid passing hole can be closed by the valve ball in time under the elastic action of the spring valve cover. Thereby, the utility model also well solve the problems that the primary dead point leaks liquid, and the pumping efficiency is improved. The utility model is an ideal substitute product of the existing valve cover.
Description
The utility model belongs to the seal arrangement in the mechanical engineering field.
At present, valve cover on the plunger type fluid pump generally is to adopt non-retractable steel cover, its major defect is, when liquid enters moment in the pump housing from liquid-through hole, elastic impact will take place in valve ball and valve cover, therefore make the surface of valve ball be subjected to slight damage, the working life of shortening valve ball that also will be in various degree; In addition, owing to all leave certain operating range between valve ball and the valve cover, when plunger motion during to last lower dead centre, often valve ball can not in time be closed liquid-through hole and a certain amount of phenomenon of leakage is taken place, and makes the working efficiency of pump be subjected in various degree influence.
The purpose of this utility model is exactly in order to provide a kind of pump efficiency that can improve to have and can prolong the valve part valve cover in working life.
To achieve these goals, technical solution of the present utility model is: with original non-retractable steel valve cover change into one can elastic telescopic spring valve cover, make it when the valve ball closed condition, suitable pressure just be arranged to valve ball, when plunger motion makes the inlet opening feed liquor, valve ball and spring valve cover just are subjected to displacement synchronously, spring is stretched, and opens liquid-through hole, and this process valve ball and valve cover any collision can not take place; When plunger was transported to lower dead centre, valve ball can be closed liquid-through hole at the right time and the phenomenon of leakage can not taken place under the effect of valve cover elastic force.
Owing to adopted above-mentioned solution, just can reach and can improve pump efficiency, can prolong the valve part promising result in working life again.
Fig. 1 is a cut-away view of the present utility model.
Below in conjunction with drawings and Examples the utility model is described in further detail.
In cut-away view of the present utility model shown in Figure 1, the working condition of following valve is that example is explained, the spring valve cover 3 that can stretch covers on the valve ball 4, and be fixed on the valve seat 5, when plunger 1 upwards moved in the pump housing 2, valve ball 4 moved up synchronously with spring valve cover 3, spring valve cover is stretched, liquid-through hole 6 is opened, and liquid enters in the pump housing, and this process valve ball and spring valve cover any collision can not take place; When plunger arrived upper dead center, valve ball can be closed liquid-through hole at the right time under the effect of spring valve cover pulling force, the phenomenon of leakage can not take place.
Claims (1)
1. a pump seal structure that is made of the pump housing, plunger, valve etc. is characterized in that: be covered with a spring on the valve ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98246428 CN2400603Y (en) | 1998-11-14 | 1998-11-14 | Pump packing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98246428 CN2400603Y (en) | 1998-11-14 | 1998-11-14 | Pump packing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2400603Y true CN2400603Y (en) | 2000-10-11 |
Family
ID=33991893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98246428 Expired - Fee Related CN2400603Y (en) | 1998-11-14 | 1998-11-14 | Pump packing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2400603Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465441C (en) * | 2007-04-03 | 2009-03-04 | 大庆油田有限责任公司 | Elastic-sealing-valve oil pump |
-
1998
- 1998-11-14 CN CN 98246428 patent/CN2400603Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465441C (en) * | 2007-04-03 | 2009-03-04 | 大庆油田有限责任公司 | Elastic-sealing-valve oil pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |