CN203769717U - Universal pressure relief device for sealing grease injection valves - Google Patents
Universal pressure relief device for sealing grease injection valves Download PDFInfo
- Publication number
- CN203769717U CN203769717U CN201420150269.3U CN201420150269U CN203769717U CN 203769717 U CN203769717 U CN 203769717U CN 201420150269 U CN201420150269 U CN 201420150269U CN 203769717 U CN203769717 U CN 203769717U
- Authority
- CN
- China
- Prior art keywords
- pressure relief
- relief device
- handle
- valve stem
- valve rod
- 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
- 238000002347 injection Methods 0.000 title claims abstract description 24
- 239000007924 injection Substances 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 title claims abstract description 13
- 239000004519 grease Substances 0.000 title abstract 4
- 150000001875 compounds Chemical class 0.000 claims description 20
- 238000012856 packing Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 9
- 239000010959 steel Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Abstract
The utility model discloses a universal pressure relief device for sealing grease injection valves. The universal pressure relief device comprises a body, a valve stem, a pressing cap, a sealing ring, a handle, a washer and an ejector pin. A longitudinal through cavity is arranged in the body, the valve stem is penetratingly arranged in the cavity, the pressing cap, the sealing ring and the washer sleeve the valve stem in the top of the cavity and are hermetically connected with the body, the top of the valve stem extends out of the body to be connected with the handle, a threaded hole is formed in the bottom of the valve stem, and the top of the ejector pin is movably mounted in the threaded hole. The universal pressure relief device has the advantages that steel balls which are positioned differently in the sealing grease injection valves with different sizes can be sufficiently jacked by the ejector pin by the aid of a threaded adjustment function for the valve stem and the ejector pin, so that pressure relief procedures can be smoothly completed; the universal pressure relief device is wide in application range and is applicable to relieving pressures of various sealing grease injection valves.
Description
Technical field
the utility model relates to injecting hole and the pressure-relieving device field, pressure testing hole of oil and gas wellhead or valve, is specifically related to the universal pressure relief device of a kind of stop-leak compound injection valve.
Background technology
, usually at recover the oil (gas), there is afterwards certain pressure in the injecting hole in oil and gas wellhead or valve and pressure testing hole, in time safety, economical, easily the pressure releasing in well head or valve is fallen most important.Our common stop-leak compound injection valve is owing to there is no unified size standard now, while using conventional pressure relief tool pressure release, because shaft length cannot regulate, often easily occur that shaft length falls short of, even do not reach the phenomenon of the inner steel ball of stop-leak compound injection valve, thereby cause that pressure release is convenient not or occur can not pressure release phenomenon.
Summary of the invention
The technical problems to be solved in the utility model is to provide the universal pressure relief device of a kind of stop-leak compound injection valve, and thimble extension elongation can be carried out suitable adjusting according to steel ball position difference in valve, and range of application is wider, can adapt to the pressure release of multiple stop-leak compound injection valve.
The utility model is achieved through the following technical solutions:
The universal pressure relief device of a kind of stop-leak compound injection valve, comprise body, valve rod, pressure cap, sealing ring, handle, packing ring and thimble, in described body, be provided with longitudinal perforation cavity, valve rod is installed in cavity, on valve rod in apex cavity, being set with pressure cap, sealing ring and packing ring and body is tightly connected, valve stem tip is stretched out body and is connected with handle, and valve rod is established screwed hole in bottom, and thimble top is movably arranged in screwed hole.
The further improvement project of the utility model is that described valve stem tip and handle are fixed with interior hexagonal holding screw.
The utility model further improvement project is, described handle is round bar, and its diameter is less than the relief hole internal diameter of stop-leak compound injection valve.Before pressure release, handle is inserted to the relief hole of stop-leak compound injection valve, estimate the general position of steel ball, be convenient to reasonably adjust the screw thread precession distance between thimble and valve rod.
The utility model compared with prior art, has following obvious advantage:
The utility model is different for the position of steel ball in the stop-leak compound injection valve of different size, relies on the threaded adjusting function between valve rod and thimble, makes thimble can fully push steel ball, and then completes smoothly pressure leak process.Range of application is wider, can adapt to the pressure release of multiple stop-leak compound injection valve.
Accompanying drawing explanation
Fig. 1 is the utility model structure sectional view.
Fig. 2 is that the utility model is used schematic diagram.
The specific embodiment
As shown in Figure 1, the utility model comprises body 6, valve rod 7, pressure cap 3, sealing ring 4, handle 2, packing ring 5 and thimble 8, in described body 6, be provided with longitudinal perforation cavity, valve rod 7 is installed in cavity, on valve rod 7 in apex cavity, being set with pressure cap 3, sealing ring 4 and packing ring 5 is tightly connected with body 6, valve rod 7 tops are stretched out body 6 and are connected with handle 2, and valve rod is established screwed hole in 7 bottoms, and thimble 8 tops are movably arranged in screwed hole.Described valve rod 7 tops and the interior hexagonal holding screw 1 of handle 2 use are fixing.
Described handle 2 is round bar, and its diameter is less than the relief hole internal diameter of stop-leak compound injection valve.
As shown in Figure 2, before pressure release, first unclamp the nut of stop-leak compound injection valve 9, with the utility model handle 2, insert stop-leak compound injection valve relief hole, estimate the approximate location of steel ball, regulate the screw thread between thimble 8 and valve rod 7, guarantee that thimble 8 can fully push up the steel ball 10 of stop-leak compound injection valve inside.Tighten the connecting thread between the utility model and stop-leak compound injection valve, clockwise direction rotary handle 2, makes thimble 8 drive steel ball 10 holddown springs 11, and separated with sealing surface, and then reaches the effect of smoothly quick pressure release.
Claims (3)
1. the universal pressure relief device of stop-leak compound injection valve, it is characterized in that: comprise body (6), valve rod (7), pressure cap (3), sealing ring (4), handle (2), packing ring (5) and thimble (8), in described body (6), be provided with longitudinal perforation cavity, valve rod (7) is installed in cavity, the upper suit of valve rod in apex cavity (7) pressure cap (3), sealing ring (4) is tightly connected with packing ring (5) and body (6), valve rod (7) top is stretched out body (6) and is connected with handle (2), valve rod (7) is established screwed hole in bottom, thimble (8) top is movably arranged in screwed hole.
2. the universal pressure relief device of a kind of stop-leak compound injection valve according to claim 1, is characterized in that: described valve rod (7) top and handle (2) are fixing with interior hexagonal holding screw (1).
3. the universal pressure relief device of a kind of stop-leak compound injection valve according to claim 1 and 2, is characterized in that: described handle (2) is round bar, and its diameter is less than the relief hole internal diameter of stop-leak compound injection valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420150269.3U CN203769717U (en) | 2014-03-31 | 2014-03-31 | Universal pressure relief device for sealing grease injection valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420150269.3U CN203769717U (en) | 2014-03-31 | 2014-03-31 | Universal pressure relief device for sealing grease injection valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203769717U true CN203769717U (en) | 2014-08-13 |
Family
ID=51286918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420150269.3U Expired - Fee Related CN203769717U (en) | 2014-03-31 | 2014-03-31 | Universal pressure relief device for sealing grease injection valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203769717U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351624A (en) * | 2015-12-03 | 2016-02-24 | 杨晔辰 | Low-resistance sealing valve rod |
| CN106369220A (en) * | 2016-10-31 | 2017-02-01 | 宝鸡石油机械有限责任公司广汉钻采设备厂 | Pressure-relief grease-injection device for single-flow valve |
-
2014
- 2014-03-31 CN CN201420150269.3U patent/CN203769717U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351624A (en) * | 2015-12-03 | 2016-02-24 | 杨晔辰 | Low-resistance sealing valve rod |
| CN105351624B (en) * | 2015-12-03 | 2018-06-08 | 杨晔辰 | A kind of low-resistance sealed valve stem |
| CN106369220A (en) * | 2016-10-31 | 2017-02-01 | 宝鸡石油机械有限责任公司广汉钻采设备厂 | Pressure-relief grease-injection device for single-flow valve |
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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: 20140813 |