CN211851747U - Anti-theft wellhead flange - Google Patents
Anti-theft wellhead flange Download PDFInfo
- Publication number
- CN211851747U CN211851747U CN202020184497.8U CN202020184497U CN211851747U CN 211851747 U CN211851747 U CN 211851747U CN 202020184497 U CN202020184497 U CN 202020184497U CN 211851747 U CN211851747 U CN 211851747U
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- CN
- China
- Prior art keywords
- cover body
- flange
- movable block
- theft
- stop block
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- 238000007789 sealing Methods 0.000 claims description 14
- 230000000694 effects Effects 0.000 abstract description 7
- 238000003466 welding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 230000037250 Clearance Effects 0.000 description 1
- 230000035512 clearance Effects 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 239000000789 fastener Substances 0.000 description 1
- 230000002093 peripheral Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses an anti-theft wellhead flange, which mainly comprises a flange, a cover body, a movable block and a stop block; the cover body is buckled on the flange and extends upwards away from the end face of the flange; the inner surface of the cover body is provided with a movable block capable of horizontally stretching; the stop block is positioned above the movable block; one end of the movable block is fixed on the inner surface of the cover body through a telescopic spring, so that the horizontal extension of the movable block is realized; when the movable block is in a free extension state, one end of the stop block is vertically overlapped with one end of the movable block, so that the cover body is prevented from moving upwards, and the cover body is sealed; when the movable block is compressed towards the inner wall of the cover body, the stop block and the movable block do not have overlapped parts up and down, and the cover body can move up and down along the axial direction of the cover body, so that the cover body is opened; the cover body is located inside the cover body with the connecting structure of the flange, so that the cover body is guaranteed to be concealed when opened and closed, and an anti-theft effect is achieved.
Description
Technical Field
The utility model relates to a petrochemical technical field especially relates to an anti-theft type well head flange.
Background
As field development continues, a certain number of wells are abandoned each year. The wasted wells are typically distributed relatively discretely and most of them are in remote locations with great management difficulties, resulting in the easy theft of the wellhead equipment for these wasted wells. At present, bolt type anti-theft wellhead devices with special connections exist, but due to the fact that connecting bolts are directly exposed, corresponding wrenches can be researched by observing the appearance, and the anti-theft level is low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves is: the anti-theft wellhead flange is provided, and the anti-theft effect of a wellhead is improved.
In order to solve the main technical problems, the following technical scheme is adopted:
an anti-theft wellhead flange comprises a flange, a cover body, a movable block and a stop block; the cover body is buckled on the flange and extends upwards away from the end face of the flange; the inner surface of the cover body is provided with a movable block capable of horizontally stretching; the stop block is positioned above the movable block.
Preferably, one end of the movable block is fixed on the inner surface of the cover body through a telescopic spring, and the other end of the movable block is positioned right below the stop block.
Preferably, the wellhead flange further comprises an operating wrench for opening and closing the cover body; the operating wrench is L-shaped; the radial direction of the cover body is provided with a through hole; the through hole is positioned below the movable block; the size of the through hole enables the operation wrench to horizontally move back and forth.
Preferably, the end face of the flange is provided with a sealing assembly; the sealing assembly is positioned in the cover body; one end of the stop block is fixedly connected with the sealing assembly, and the other end of the stop block is positioned above one end of the movable block.
Preferably, the sealing assembly comprises a first communicating pipe, a valve, a second communicating pipe and a plug which are arranged from bottom to top in sequence; the first connecting pipe is fixedly connected with the flange; the outer diameter of the plug is the same as the inner diameter of the second communicating pipe; the stop block is fixed on the outer surface of the first communicating pipe.
Preferably, the lower end face of the flange is provided with a rear baffle; the rear baffle is connected with the flange through a drill tail bolt; the outer diameter of the cover body is consistent with the outer diameter of the rear baffle.
Preferably, the stop block, the movable block and the through hole are all in one-to-one correspondence.
Preferably, the cover body is connected with the peripheral surface of the flange through threads.
Compared with the prior art, the utility model discloses be applied to the theftproof utensil of wellhead flange and possess following advantage:
(1) one end of the movable block is fixed on the inner surface of the cover body through a telescopic spring, so that the horizontal extension and retraction of the movable block are realized, and the movable block can only extend and retract back and forth in the radial direction of the cover body and cannot move in the axial direction of the cover body; the cover body is buckled on the flange, so that the cover body can only move along the axial direction of the cover body to realize opening and closing; when the movable block is in a free extension state, one end of the stop block is vertically overlapped with one end of the movable block, so that the cover body is prevented from moving upwards in the axial direction, and the cover body is sealed; when the movable block is compressed towards the inner wall of the cover body, the stop block and the movable block do not have overlapped parts up and down, and the cover body can move up and down along the axial direction of the cover body, so that the cover body is opened; the connection structure of the cover body and the flange is positioned in the cover body, so that the cover body is ensured to be concealed when opened and closed, and the anti-theft effect is realized.
(2) The utility model also comprises an L-shaped operating wrench for opening and closing the cover body; a through hole which can enable the operating wrench to move horizontally is arranged in the radial direction of the cover body; a rear baffle is arranged on the lower end face of the flange; the rear baffle is connected with the flange through the drill tail bolt, and the lower bottom surface of the rear baffle can be completely smooth without connecting traces through the drill tail bolt; the outer surface of the cover body is smooth and only the through hole is exposed, and the connecting structure of the cover body and the flange cannot be directly judged through direct vision; the outer diameter of the cover body is consistent with the outer diameter of the rear baffle plate, the cover body and the rear baffle plate form a closed space, the flange is completely arranged in the closed space, no connecting trace exists between the cover body and the rear baffle plate, and the anti-theft effect is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some examples of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive work.
Fig. 1 is a schematic structural diagram of an anti-theft wellhead flange provided by an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an operation wrench of an anti-theft wellhead flange according to an embodiment of the present invention.
In the figure: the device comprises a flange 1, a cover 2, a movable block 3, a stop block 4, a telescopic spring 5, an operation wrench 6, a through hole 7, a sealing assembly 8, a first communicating pipe 81, a valve 82, a second communicating pipe 83, a plug 84, a rear baffle 9 and a drill tail bolt 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, an anti-theft wellhead flange includes a flange 1, a cover body 2, a movable block 3, and a stop block 4; the cover body 2 is buckled on the flange 1 and extends upwards from the end face of the flange 1, the outer surface of the cover body 2 is smooth, and the cover body 2 is fixed with the flange 1 through a buckle device at the bottom; the inner surface of the cover body 2 is provided with a movable block 3 which can horizontally stretch out and draw back, and the movable block 3 can only stretch out and draw back in the radial direction of the cover body 2 and can not move in the axial direction of the cover body 2; the cover body 2 can only move along the axial direction to realize opening and closing, the stop block 4 is positioned above the movable block 3, and when the movable block 3 is positioned in a free extension state, the stop block 4 is vertically superposed with one end of the movable block 3, so that the upward axial movement of the cover body 2 is prevented, and the closing of the cover body 2 is realized; when the movable block 3 is compressed towards the inner wall of the cover body 2, the stop block 4 and the movable block 3 do not have a superposed part, and the cover body 2 can move up and down along the axial direction of the cover body, so that the cover body 2 is opened; the cover body 2 is hidden with the connection structure of the flange 1, so that the cover body 2 is ensured to be hidden when being opened and closed, and the anti-theft effect is realized.
Furthermore, one end of the movable block 3 is fixed on the inner surface of the cover body 2 through a telescopic spring 5, the other end of the movable block is positioned under the stop block 4, one end of the telescopic spring 5 is embedded into the movable block 3, so that the integration of the telescopic spring 5 and the movable block 3 is ensured, the other end of the telescopic spring 5 is directly fixed on the inner surface of the cover body 2 through welding and other modes, the cover body 2, the telescopic spring 5 and the movable block 3 are fixedly connected into a whole, one end of the movable block 3 is positioned under the stop block 4 in a free state of the telescopic spring 5, at the moment, the cover body 2 cannot move up and down under the action of the stop block 4 and the movable block 3, and the cover body 2 is tightly connected with the flange 1 into a whole; when expanding spring 5 is compressed, there is certain clearance at cover body 2's footpath with dog 4 to make cover body 2 can reciprocate, utilize expanding spring 5 to realize that the level of expanding block 3 is flexible, simple structure and maneuverability are strong.
Further, the wellhead flange also comprises an operation wrench 6 for opening and closing the cover body 2; the operating wrench 6 is L-shaped; a through hole 7 is formed in the radial direction of the cover body 2, and the through hole 7 penetrates through the wall thickness of the cover body 2; the through hole 7 is positioned below the movable block 3; through-hole 7's size can make 6 horizontally round trip movements of operating spanner, 6 levels of operating spanner are placed and are used, operating spanner 6's right angle end stretches into the inside of the cover body 2 from through-hole 7, and the right angle end through operating spanner 6 contacts being close to dog 4 sides of movable block 3, outside pulling operating spanner 6, make expanding spring 5 compressed, the part of coincidence about no between movable block 3 and the dog 4 this moment, the rebound cover body 2 realizes opening, the surface of the cover body 2 is smooth only to have through-hole 7 to expose, can directly judge the connection structure of the cover body 2 and flange 1 through direct vision, thereby improve the theftproof effect.
Furthermore, a sealing assembly 8 is arranged on the end face of the flange 1, and the sealing assembly 8 is used for avoiding the air leakage condition of the flange 1; the sealing assembly 8 is positioned inside the cover body 2, and the sealing assembly 8 is completely positioned inside the cover body 2 and fixed on the end surface of the flange 1 through fasteners such as bolts and the like; one end and the 8 fixed connection of seal assembly of dog 4, the one end of dog 4 is fixed at seal assembly 8 through modes such as welding, and seal assembly 8 is equivalent to relative state with the surface of the 2 inner walls of the cover body, and movable block 3 is fixed at the cover body 2, and dog 4 is fixed at seal assembly 8 for movable block 3 realizes the lock dead state that reciprocates with dog 4.
Further, the sealing assembly 8 comprises a first communicating pipe 81, a valve 82, a second communicating pipe 83 and a plug 84 which are sequentially arranged from bottom to top, and the valve 82 is used for checking gas when an operator starts a wellhead; the first communicating pipe 81 is fixedly connected with the end face of the flange 1 through a bolt; the outer diameter of the plug 84 is the same as the inner diameter of the second communicating pipe 83, and the plug 84 can be screwed in or out tightly by manpower; the stopper 4 is fixed to the outer surface of the first communication pipe 81 by welding.
Further, a rear baffle 9 is arranged on the lower end face of the flange 1; the rear baffle 9 is connected with the flange 1 through a drill bolt 10, and the lower bottom surface of the rear baffle 9 can be completely smooth without connecting marks through the drill bolt 10; the external diameter of the cover body 2 is consistent with the external diameter of the rear baffle 9, namely the cover body 2 and the rear baffle 9 form a closed space, the flange 1 is completely positioned in the closed space, no connecting trace exists between the cover body 2 and the rear baffle 9, and the anti-theft effect is further improved.
Further, dog 4, movable block 3, through-hole 7 all have a plurality ofly and one-to-one, and the downside of dog 4 is a movable block 3, and the downside of a movable block 3 is a through-hole, all has a plurality ofly to improve the cover body 2 and flange 1's joint strength, avoids being damaged by violence.
Further, the cover body 2 is in threaded connection with the circumferential surface of the flange 1, threads are arranged on the inner surface of the bottom of the cover body 1, threads matched with the cover body 1 in a threaded manner are arranged on the circumferential surface of the flange 1, the cover body 2 is buckled more concealably through the threaded connection, and the connection strength between the cover body 2 and the flange 1 can be guaranteed.
The working principle is as follows: rotating the cover body 2 to make the cover body 2 move upwards; the right angle end of the operation wrench 6 penetrates through the through hole 7 and extends into the cover body 2, the right angle end of the operation wrench 6 is contacted with the side, close to the stop block 4, of the movable block 3, the operation wrench 6 is pulled outwards, the telescopic spring 5 is compressed, the movable block 3 and the stop block 4 do not have a vertically overlapped part, and the cover body 2 is moved upwards to separate from the flange 1.
It should be noted that, in the present invention, "upper, lower, left and right" are defined based on the relative position of the components in the drawings, and are only for the clarity and convenience of the description of the technical solution, it should be understood that the application of the directional terms does not limit the protection scope of the present application.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or some of the technical features may be substituted by equivalent substitutions, modifications and the like, all of which are within the spirit and principle of the present invention.
Claims (8)
1. The utility model provides an anti-theft type wellhead flange which characterized in that: comprises a flange, a cover body, a movable block and a stop block; the cover body is buckled on the flange and extends upwards away from the end face of the flange; the inner surface of the cover body is provided with a movable block capable of horizontally stretching; the stop block is positioned above the movable block.
2. An anti-theft wellhead flange according to claim 1, characterised in that: one end of the movable block is fixed on the inner surface of the cover body through a telescopic spring, and the other end of the movable block is positioned right below the stop block.
3. An anti-theft wellhead flange according to claim 1, characterised in that: the wellhead flange also comprises an operating wrench for opening and closing the cover body; the operating wrench is L-shaped; the radial direction of the cover body is provided with a through hole; the through hole is positioned below the movable block; the size of the through hole enables the operation wrench to horizontally move back and forth.
4. An anti-theft wellhead flange according to claim 1, characterised in that: a sealing assembly is arranged on the end face of the flange; the sealing assembly is positioned in the cover body; one end of the stop block is fixedly connected with the sealing assembly, and the other end of the stop block is positioned above one end of the movable block.
5. An anti-theft wellhead flange according to claim 4, characterised in that: the sealing assembly comprises a first communicating pipe, a valve, a second communicating pipe and a plug which are sequentially arranged from bottom to top; the first connecting pipe is fixedly connected with the flange; the outer diameter of the plug is the same as the inner diameter of the second communicating pipe; the stop block is fixed on the outer surface of the first communicating pipe.
6. An anti-theft wellhead flange according to claim 1, characterised in that: a rear baffle is arranged on the lower end face of the flange; the rear baffle is connected with the flange through a drill tail bolt; the outer diameter of the cover body is consistent with the outer diameter of the rear baffle.
7. An anti-theft wellhead flange according to claim 1, characterised in that: the stop block, the movable block and the through holes are all in one-to-one correspondence.
8. An anti-theft wellhead flange according to claim 1, characterised in that: the cover body is connected with the circumferential surface of the flange through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020184497.8U CN211851747U (en) | 2020-02-19 | 2020-02-19 | Anti-theft wellhead flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020184497.8U CN211851747U (en) | 2020-02-19 | 2020-02-19 | Anti-theft wellhead flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211851747U true CN211851747U (en) | 2020-11-03 |
Family
ID=73248109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020184497.8U Active CN211851747U (en) | 2020-02-19 | 2020-02-19 | Anti-theft wellhead flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211851747U (en) |
-
2020
- 2020-02-19 CN CN202020184497.8U patent/CN211851747U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |