CN204877383U - Well head theftproof cap pressure relief device - Google Patents
Well head theftproof cap pressure relief device Download PDFInfo
- Publication number
- CN204877383U CN204877383U CN201520612897.3U CN201520612897U CN204877383U CN 204877383 U CN204877383 U CN 204877383U CN 201520612897 U CN201520612897 U CN 201520612897U CN 204877383 U CN204877383 U CN 204877383U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- connector
- well head
- pressure relief
- pressure release
- 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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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model discloses a well head theftproof cap pressure relief device of oil well comprises body, connector, pressure release mouth, screw rod, hand wheel, sealed piece and kicking block, and the lower extreme of body is the connector, has the turncap on the body of connector top, and the periphery of connector has the screw thread, and the lower extreme periphery cover of connector is equipped with the sealing ring, the lateral wall of body extends there is the pressure release mouth, and the pressure release mouth has the external screw thread, the screw rod passes the body center, the fixed kicking block of lower extreme of screw rod, and the top end screw thread connection of screw rod and body, sealed piece is arranged in the pressure release mouth top of body, and sealed piece seals between screw rod and body, and the hand wheel is fixed on the top of screw rod. During the use, the turncap of swivelling joint head is connected the connector on the well head cap of old well head, then rotatory hand wheel, and the screw rod drives the kicking block and moves down, and the kicking block backs down the ball valve in the well head cap, and fluid passage pressure release mouth goes out liquid. The utility model discloses operation safety can not the polluted environment.
Description
Technical field
The utility model relates to a kind of theft-proof borehole sealing pressure relief device of oil well.
Background technology
After old well head installs wellhead cap, down-hole pressure rises, and down-hole pressure is increased, and conventional lower operation exists unsafe factor and produces environment pollution.
Summary of the invention
The purpose of this utility model is exactly to solve the problem, and provides a kind of theft-proof borehole sealing pressure relief device.
The utility model is made up of body, connector, pressure relief opening, screw rod, handwheel, sealing block and jacking block, the lower end of body is connector, body above connector has turncap, and the periphery of connector has screw thread, and the lower end periphery of connector is arranged with joint ring; The sidewall of body is extended with pressure relief opening, and pressure relief opening has external screw thread; Screw rod is through body central, and jacking block is fixed in the lower end of screw rod, and screw rod is threaded with the top of body, and sealing block is arranged in above the pressure relief opening of body, and sealing block is sealed between screw rod and body, and handwheel is fixed on the top of screw rod.
The course of work of the present utility model:
During use, connector is connected on the wellhead cap of old well head by the turncap of rotary connecting joint, then rotation hand wheel, and screw rod drives jacking block to move down, and jacking block backs down the ball valve in wellhead cap, and liquid is by pressure relief opening fluid.By controlling the size that ball valve is opened, and then energy flow.
Reverse operating handwheel, screw rod drives jacking block to move up, and the ball valve in wellhead cap is closed by borehole pressure.
The beneficial effects of the utility model: handling safety, do not pollute the environment.
Accompanying drawing explanation
Fig. 1 is sectional view of the present utility model.
Detailed description of the invention
Refer to shown in Fig. 1, the present embodiment is made up of body 1, connector 2, pressure relief opening 3, screw rod 4, handwheel 5, sealing block 6 and jacking block 7, the lower end of body 1 is connector 2, body 1 above connector 2 has turncap 21, the periphery of connector 2 has screw thread 22, and the lower end periphery of connector 2 is arranged with joint ring 23; The sidewall of body 1 is extended with pressure relief opening 3, and pressure relief opening 3 has external screw thread 31; Screw rod 4 is through body 1 center, and jacking block 7 is fixed in the lower end of screw rod 4, and screw rod 4 is threaded with the top of body 1, and sealing block 6 is arranged in above the pressure relief opening 3 of body 1, and sealing block 6 is sealed between screw rod 4 and body 1, and handwheel 5 is fixed on the top of screw rod 4.
The course of work of the present embodiment:
During use, connector 2 is connected on the wellhead cap of old well head by the turncap 21 of rotary connecting joint 2, then rotation hand wheel 5, and screw rod 4 drives jacking block 7 to move down, and jacking block 7 backs down the ball valve in wellhead cap, and liquid is by pressure relief opening 3 fluid.By controlling the size that ball valve is opened, and then energy flow.Pressure relief opening 3 is connected with pipeline, and the crude oil of outflow can reclaim, and prevents the generation of pollution.
Reverse operating handwheel 5, screw rod 4 drives jacking block 7 to move up, and the ball valve in wellhead cap is closed by borehole pressure.
Claims (1)
1. a theft-proof borehole sealing pressure relief device, it is characterized in that: be made up of body (1), connector (2), pressure relief opening (3), screw rod (4), handwheel (5), sealing block (6) and jacking block (7), the lower end of body (1) is connector (2), the body (1) of connector (2) top has turncap (21), the periphery of connector (2) has screw thread (22), and the lower end periphery of connector (2) is arranged with joint ring (23); The sidewall of body (1) is extended with pressure relief opening (3), and pressure relief opening (3) has external screw thread (31); Screw rod (4) is through body (1) center, jacking block (7) is fixed in the lower end of screw rod (4), screw rod (4) is threaded with the top of body (1), sealing block (6) is arranged in pressure relief opening (3) top of body (1), sealing block (6) is sealed between screw rod (4) and body (1), and handwheel (5) is fixed on the top of screw rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520612897.3U CN204877383U (en) | 2015-08-15 | 2015-08-15 | Well head theftproof cap pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520612897.3U CN204877383U (en) | 2015-08-15 | 2015-08-15 | Well head theftproof cap pressure relief device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204877383U true CN204877383U (en) | 2015-12-16 |
Family
ID=54821766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520612897.3U Expired - Fee Related CN204877383U (en) | 2015-08-15 | 2015-08-15 | Well head theftproof cap pressure relief device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204877383U (en) |
-
2015
- 2015-08-15 CN CN201520612897.3U patent/CN204877383U/en not_active Expired - Fee Related
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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: 20151216 Termination date: 20160815 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |