CN107989575A - Rotary check valve - Google Patents
Rotary check valve Download PDFInfo
- Publication number
- CN107989575A CN107989575A CN201610969573.4A CN201610969573A CN107989575A CN 107989575 A CN107989575 A CN 107989575A CN 201610969573 A CN201610969573 A CN 201610969573A CN 107989575 A CN107989575 A CN 107989575A
- Authority
- CN
- China
- Prior art keywords
- thimble
- connector
- inner cavity
- right connector
- check valve
- 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.)
- Pending
Links
- 230000000694 effects Effects 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 abstract description 13
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000005553 drilling Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L29/00—Joints with fluid cut-off means
- F16L29/04—Joints with fluid cut-off means with a cut-off device in each of the two pipe ends, the cut-off devices being automatically opened when the coupling is applied
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The present invention relates to oilfield drilling and production technology field, a kind of more particularly to rotary check valve, including structure identical left connector and right connector, external screw thread is equipped with left connector, activity is combined with nut on right connector, the nut coordinates with the external screw thread on the left connector, and the structure of the left connector and right connector is respectively：Including the joint body with inner cavity, baffle ring, locating ring, spring, thimble, the front portion of the thimble is equipped with nose cone, nose cone is locked on the front end of the inner cavity, spring pocket is on the thimble, the end of spring is locked to the baffle ring, baffle ring is fixed on the middle part of the inner cavity, and sliding sleeve is cased with thimble, and sliding sleeve is fixed in the inner cavity by the locating ring；Thimble on right connector is outstanding in the right connector.The present apparatus is simple in structure, when two connectors do not connect, seals, and during connection, liquid just can be by the way that the present apparatus can be attached in the case of a liquid in pipe memory, not influence work.
Description
Technical field
The present invention relates to oilfield drilling and production technology field, more particularly to a kind of rotary check valve.
Background technology
There is leakage phenomena in oil well casing casing caused by the reasons such as cementing quality, connection screw thread, ground movement, corrosion,
Unfavorable factor is brought to oil well measure construction and influences crude output.Two traditional oil pipes must be by two oil pipes in connection
Interior liquid empties, it is impossible to can stop liquid, no person can spray when connecting two oil pipes in joint.
The content of the invention
It is an object of the invention to overcome the shortcomings of above-mentioned technology, and a kind of rotary check valve is provided, existed in oil pipe
It can just be connected in the case of liquid.
The present invention to achieve the above object, using following technical scheme：A kind of rotary check valve, it is characterised in that：Including
Structure identical left connector and right connector, are equipped with external screw thread on left connector, on right connector activity be combined with nut, the spiral shell
Female external screw thread with the left connector coordinates, and the structure of the left connector and right connector is respectively：Including connecing with inner cavity
Head body, baffle ring, locating ring, spring, thimble, the front portion of the thimble are equipped with nose cone, and the nose cone is locked in described
The front end of chamber, the spring pocket is on the thimble, and the end of spring is locked to the baffle ring, and the baffle ring is fixed in described
The middle part of chamber, is cased with sliding sleeve on the thimble, the sliding sleeve is fixed in the inner cavity by the locating ring；The right connector
On thimble it is outstanding in the right connector.
Preferably, the left connector is equipped with dustband.
Preferably, the back of the nose cone is equipped with sealing ring, which coordinates with the inner cavity.
The beneficial effects of the invention are as follows:Relative to the prior art, the present apparatus is simple in structure, when left and right joint and it is separated when,
Spring and compression centrum, liquid cannot circulate.When left and right joint by nut with being connected, two thimbles mutually extrude, spring
Compressed, thimble leaves sealing station, and liquid can pass through.When two connectors do not connect, seal, during connection, liquid
Just can be by easy to use.The present apparatus can be attached in the case of a liquid in pipe memory, not influence work.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the working state schematic representation of the present invention.
Embodiment
Below in conjunction with the accompanying drawings and the preferred embodiment embodiment that the present invention will be described in detail.In description of the invention
In, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " vertical ", " level ",
The orientation or position relationship of the instruction such as " top ", " bottom " " interior ", " outer " be based on orientation shown in the drawings or position relationship, be only for
Easy to the description present invention and simplify description, rather than instruction or imply that signified device or element there must be specific side
Position, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
As shown in Figure 1 to Figure 2, identical 1 He of left connector of a kind of rotary check valve, a kind of rotary check valve, including structure
Right connector 2, is equipped with external screw thread 3 on left connector, on right connector activity be combined with nut 4, the nut and the left connector
On external screw thread coordinate, the structure of the left connector and right connector is respectively：Including the joint body with inner cavity 5, baffle ring 6,
Locating ring 7, spring 8, thimble 9, the front portion of the thimble is equipped with nose cone 10, before the nose cone is locked on the inner cavity
End, the spring pocket is on the thimble, and the end of spring is locked to the baffle ring, and the baffle ring is fixed in the inner cavity
Portion, is cased with sliding sleeve 11 on the thimble, the sliding sleeve is fixed in the inner cavity by the locating ring；On the right connector
Thimble is outstanding in the right connector.
In order to enable left and right joint to be sealed when contacting, the left connector is equipped with dustband 12.
The back of the nose cone is equipped with sealing ring 13, which coordinates with the inner cavity.Ensure nose cone and inner cavity
Between leakproofness.
The present apparatus is simple in structure, when left and right joint and it is separated when, spring and compress centrum, liquid cannot circulate.Work as left and right
When connector by nut with being connected, two thimbles mutually extrude, and spring is compressed, and thimble leaves sealing station, and liquid can lead to
Cross.When two connectors do not connect, seal, during connection, liquid just can be by easy to use.The present apparatus can be in pipe
Deposit and be attached in the case of a liquid, do not influence work.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (3)
- A kind of 1. rotary check valve, it is characterised in that：Including structure identical left connector and right connector, it is equipped with left connector outer Screw thread, on right connector activity be combined with nut, the nut coordinates with the external screw thread on the left connector, the left connector and The structure of right connector is respectively：Including the joint body with inner cavity, baffle ring, locating ring, spring, thimble, before the thimble Portion is equipped with nose cone, and the nose cone is locked on the front end of the inner cavity, and the spring pocket is on the thimble, the end of spring The baffle ring is locked to, the baffle ring is fixed on the middle part of the inner cavity, and sliding sleeve is cased with the thimble, and the sliding sleeve passes through institute Locating ring is stated to be fixed in the inner cavity；Thimble on the right connector is outstanding in the right connector.
- 2. rotary check valve according to claim 1, it is characterised in that：The left connector is equipped with dustband.
- 3. rotary check valve according to claim 1, it is characterised in that：Rotary check valve, it is characterised in that：The circular cone The back of head is equipped with sealing ring, which coordinates with the inner cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610969573.4A CN107989575A (en) | 2016-10-27 | 2016-10-27 | Rotary check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610969573.4A CN107989575A (en) | 2016-10-27 | 2016-10-27 | Rotary check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107989575A true CN107989575A (en) | 2018-05-04 |
Family
ID=62029403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610969573.4A Pending CN107989575A (en) | 2016-10-27 | 2016-10-27 | Rotary check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107989575A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114337A (en) * | 2018-10-19 | 2019-01-01 | 贺雨鑫 | Synchronous mode seals filling apparatus |
| CN110873249A (en) * | 2019-12-07 | 2020-03-10 | 杭州大立过滤设备有限公司 | Joint for preventing leakage during replacement |
| FR3103544A1 (en) * | 2019-11-21 | 2021-05-28 | Thales | Connection device with hydraulic swivel. |
| CN113864547A (en) * | 2021-10-21 | 2021-12-31 | 信阳富地燃气有限公司 | Gas pipeline connecting structure |
-
2016
- 2016-10-27 CN CN201610969573.4A patent/CN107989575A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114337A (en) * | 2018-10-19 | 2019-01-01 | 贺雨鑫 | Synchronous mode seals filling apparatus |
| CN109114337B (en) * | 2018-10-19 | 2020-06-09 | 贺雨鑫 | Synchronous sealing filling device |
| FR3103544A1 (en) * | 2019-11-21 | 2021-05-28 | Thales | Connection device with hydraulic swivel. |
| CN110873249A (en) * | 2019-12-07 | 2020-03-10 | 杭州大立过滤设备有限公司 | Joint for preventing leakage during replacement |
| CN113864547A (en) * | 2021-10-21 | 2021-12-31 | 信阳富地燃气有限公司 | Gas pipeline connecting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180504 |