CN109505552B - Anti-theft well head - Google Patents
Anti-theft well head Download PDFInfo
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- CN109505552B CN109505552B CN201910006574.2A CN201910006574A CN109505552B CN 109505552 B CN109505552 B CN 109505552B CN 201910006574 A CN201910006574 A CN 201910006574A CN 109505552 B CN109505552 B CN 109505552B
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- 238000007789 sealing Methods 0.000 claims abstract description 79
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003129 oil well Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
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- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Gasket Seals (AREA)
Abstract
The invention relates to an anti-theft wellhead, which comprises a wellhead sealing module and a wellhead anti-theft module, wherein a wellhead flange is fixedly arranged at the top of a pipeline; the anti-theft base of the wellhead anti-theft module is fixedly arranged on a wellhead flange of the wellhead sealing module through four connecting bolts, the anti-theft module consists of a sealing part and an anti-theft part, a pressure relief device is arranged in the wellhead sealing module, the anti-theft module is respectively screwed by a shaft through a gear mechanism, tools such as a common wrench and the like are difficult to open, and the anti-theft effect is improved through the matching of machinery and electronic equipment.
Description
Technical Field
The invention relates to the technical field of petrochemical industry, in particular to an anti-theft wellhead.
Background
With the increasing demand of petroleum, a certain number of oil wells are abandoned or sealed every year, and a plurality of oil wells are distributed dispersedly and are located in remote areas and are easy to steal, so that a well mouth with a good anti-theft effect is needed.
Disclosure of Invention
Aiming at the problems, the invention provides an anti-theft wellhead which comprises a sealing part and an anti-theft part, wherein a pressure relief device is arranged in a wellhead sealing module, the anti-theft module is used for respectively screwing four screws through a gear mechanism by using a shaft, tools such as a common wrench and the like are difficult to open, and the anti-theft effect is improved by matching a machine with an electronic device.
The technical scheme adopted by the invention is as follows: an anti-theft wellhead comprises a wellhead sealing module and a wellhead anti-theft module, wherein a wellhead flange is fixedly arranged at the top of a pipeline; and the anti-theft base of the wellhead anti-theft module is fixedly arranged on a wellhead flange of the wellhead sealing module through four connecting bolts.
The wellhead sealing module comprises a wellhead flange, a pipeline, a sealing bolt, a locking seat, a sliding gasket, a sealing block, a clamping block, a sealing spring, a sealing ball, a pressing bolt and a sealing ring; the locking seat is fixedly arranged on the wellhead flange through bolts, one convex side of the locking seat faces the interior of the pipeline, the sealing block is made of rubber, and the center of the sealing block is provided with a spline hole; the clamping block is a spline shaft, the lower part of the clamping block is provided with a boss, the upper side and the lower side of the clamping block are provided with threaded holes, and through holes are formed among the threaded holes; the sealing block is matched with the clamping block through a spline, the sealing block is positioned on one side of a boss of the clamping block, the clamping block is arranged at the lower end part of the locking seat through a sealing bolt, and the sliding gasket is positioned between the locking seat and the sealing block; the center of the lower end face of the clamping block is provided with a sealing ring, a sealing spring is positioned in a threaded hole below the clamping block, a compression bolt is installed on the lower portion of the clamping block through threads, a through hole is formed in the middle of the compression bolt, and a sealing ball is positioned between the sealing spring and the compression bolt.
The wellhead anti-theft module comprises an anti-theft base, an anti-theft cover, four bolt guide rings, a sliding seat, a limiting seat, four bolt fixing seats, four compression springs, four connecting bolts, a gear gasket, a key, a rotating rod, a hinge frame, two rocker arms, a telescopic sleeve, a telescopic screw, a sliding rod, four first gears, two second gears, two third gears, four fourth gears and a gear retaining ring, wherein the anti-theft base is disc-shaped, four through holes are uniformly distributed in the anti-theft base, and the four bolt guide rings are respectively positioned above the four through holes in the anti-theft base; the sliding seat is positioned on the bracket on the upper end surface of the anti-theft base, the spline hole is arranged in the center of the anti-theft base, the limiting seat is positioned right above the sliding seat, and a circular groove is arranged in the limiting seat; the lower half part of the telescopic screw is a screw rod, the upper part of the telescopic screw is provided with a cylindrical boss, and the top of the telescopic screw is provided with a triangular screw cap; the sliding rod is a spline shaft, a threaded hole is formed in the sliding rod, and a hinge joint is arranged at the bottom of the sliding rod; the sliding rod is slidably arranged in the sliding seat through a spline, the telescopic screw is rotatably arranged in the limiting seat through a cylindrical boss, and a thread at the bottom of the telescopic screw is matched with a threaded hole in the sliding rod; the four bolt fixing seats are respectively and rotatably arranged in the four bolt guide rings; the lower half part of the bolt fixing seat is a cylinder matched with an inner hole of the bolt guide ring, a hexagonal hole matched with the end part of the connecting bolt is arranged at the axis of the cylinder, a spline is arranged at the top of the cylinder of the bolt fixing seat, and a cylindrical pin shaft is arranged above the spline; the four connecting bolts are respectively installed in the four bolt fixing seats in a sliding manner, and a compression spring is arranged between each connecting bolt and each bolt fixing seat; the four first gears are respectively and fixedly arranged on the four bolt fixing seats through splines; a cylindrical sliding sleeve is arranged in the center of the anti-theft base, the lower part of the rotating rod is cylindrical, a circular groove is formed in the upper part of the cylinder, and a square upright column is arranged at the top of the cylinder; the rotary rod is rotatably arranged on the cylindrical sliding sleeve in the center of the anti-theft base, four fourth gears are rotatably arranged on the cylindrical section of the rotary rod, gear gaskets are arranged between the fourth gears, and the four fourth gears are positioned between the upper end surface of the cylindrical sliding sleeve in the center of the anti-theft base and the gear retaining ring on the anti-theft base; the second gear is formed by a big gear and a small gear in parallel, a circular gasket is arranged between the two gears, the third gear is formed by a big gear and a small gear in parallel, and a circular gasket is arranged below the big gear; the rotating shafts of the two second gears and the two third gears are uniformly arranged around the axis of the anti-theft base, the large gears on each of the two second gears and the two third gears are respectively meshed with one fourth gear, and the small gears on each of the two second gears and the two third gears are respectively meshed with one first gear; the hinge frame is rotatably arranged on a circular groove on the rotating rod, the middle part of the telescopic sleeve is hinged on a support on the anti-theft base, a key groove is arranged in the telescopic sleeve, the end parts of the two rocker arms are respectively and slidably arranged at the two ends of the telescopic sleeve, the other end of one rocker arm is hinged on the hinge frame, and the other end of the other rocker arm is hinged at the bottom of the sliding rod; the anti-theft cover is fixedly installed on the upper end face of the anti-theft base, and the shaft holes in the anti-theft cover correspond to the shafts on the wellhead anti-theft module one by one.
Furthermore, a square hole is formed in the side face of the cylindrical part of the rotating rod, an electromagnet is arranged at the bottom of the square hole, and leaf springs are arranged on the upper side and the lower side of the square hole; the key is arranged in a side face square hole of the rotary rod, the bottom of the key is provided with a magnet, and grooves are formed in the two sides of the key in the upward direction; the top of the rotating rod is provided with a power supply hole, and a chip for driving the electromagnet is arranged in the rotating rod.
Furthermore, a key groove is formed in the fourth gear shaft hole.
The invention has the beneficial effects that: the wellhead sealing module is internally provided with the pressure relief device and the anti-theft module, the four screws are respectively screwed by one shaft through the gear mechanism, tools such as a common wrench and the like are difficult to open, the safety effect of the equipment is improved through the matching of machinery and electronic equipment, and meanwhile, the appearance is hemispherical, so that the capacity of the equipment for preventing external force damage is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of a wellhead anti-theft module of the present invention.
Fig. 3 is an exploded view of the wellhead anti-theft module of the present invention.
FIG. 4 is a cross-sectional view of a wellhead anti-theft module of the present invention.
Fig. 5 is a partial enlarged view of fig. 4 of the present invention.
FIG. 6 is a schematic diagram of the configuration of the wellhead sealing module of the present invention.
Fig. 7 is a schematic structural view of the inside of the anti-theft cover of the present invention.
Fig. 8 and 9 are schematic structural views of the wellhead anti-theft module without an anti-theft cover.
Fig. 10, fig. 11 and fig. 12 are installation schematic diagrams of parts of the wellhead anti-theft module of the invention.
Fig. 13 is a schematic structural view of a rotating lever according to the present invention.
Fig. 14 is a partially enlarged view of fig. 13.
Fig. 15 is a schematic structural view of a fourth gear of the present invention.
Reference numerals: 1-a wellhead sealing module; 2-well head anti-theft module; 101-a wellhead flange; 102-a pipeline; 103-sealing bolts; 104-a locking seat; 105-a sliding gasket; 106-sealing block; 107-clamping blocks; 108-a sealing spring; 109-sealing ball; 110-hold-down bolts; 111-a sealing ring; 201-anti-theft base; 202-anti-theft cover; 203-bolt guide ring; 204-sliding seat; 205-a limiting seat; 206-bolt fixing seat; 207-a hold down spring; 208-connecting bolts; 209-gear pad; a 210-bond; 211-rotating rod; 212-a hinged rack; 213-rocker arm; 214-a telescoping sleeve; 215-telescoping screw; 216-a slide bar; 217-a first gear; 218-a second gear; 219 — third gear; 220-a fourth gear; 221-gear retainer ring; 21101-an electromagnet; 21102-leaf spring.
Detailed Description
The present invention will be further described with reference to specific examples, which are illustrative of the invention and are not to be construed as limiting the invention.
The anti-theft wellhead comprises a wellhead sealing module 1 and a wellhead anti-theft module 2, wherein a wellhead flange 101 is fixedly installed on the top of a pipeline 102, and is shown in figures 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15. The anti-theft base 201 of the wellhead anti-theft module 2 is fixedly installed on the wellhead flange 101 of the wellhead sealing module 1 through four connecting bolts 208.
The wellhead sealing module 1 comprises a wellhead flange 101, a pipeline 102, a sealing bolt 103, a locking seat 104, a sliding gasket 105, a sealing block 106, a clamping block 107, a sealing spring 108, a sealing ball 109, a compression bolt 110 and a sealing ring 111. The locking seat 104 is fixedly installed on the wellhead flange 101 through bolts, one side of the locking seat 104 protruding faces the inside of the pipeline 102, the sealing block 106 is made of rubber, and the center of the sealing block is provided with a splined hole. The clamping block 107 is a spline shaft, the lower part of the clamping block is provided with a boss, the upper side and the lower side of the clamping block are provided with threaded holes, and through holes are formed among the threaded holes. The sealing block 106 and the clamping block 107 are matched through splines, the sealing block 106 is positioned on one side of a boss of the clamping block 107, the clamping block 107 is installed at the lower end part of the locking seat 104 through a sealing bolt 103, and the sliding gasket 105 is positioned between the locking seat 104 and the sealing block 106. The center of the lower end face of the clamping block 107 is provided with a sealing ring 111, a sealing spring 108 is positioned in a threaded hole below the clamping block 107, a pressing bolt 110 is installed at the lower part of the clamping block 107 through threads, a through hole is formed in the middle of the pressing bolt 110, and a sealing ball 109 is positioned between the sealing spring 108 and the pressing bolt 110.
The wellhead anti-theft module 2 comprises an anti-theft base 201, an anti-theft cover 202, four bolt guide rings 203, a sliding seat 204, a limiting seat 205, four bolt fixing seats 206, four compression springs 207, four connecting bolts 208, a gear gasket 209, a key 210, a rotating rod 211, a hinge bracket 212, two rocker arms 213, a telescopic sleeve 214 and a telescopic screw 215. The anti-theft device comprises a sliding rod 216, four first gears 217, two second gears 218, two third gears 219, four fourth gears 220 and a gear retaining ring 221, wherein the anti-theft base 201 is disc-shaped, four through holes are uniformly distributed in the anti-theft base 201, and the four bolt guide rings 203 are respectively positioned above the four through holes in the anti-theft base 201. The sliding seat 204 is located on the support of the upper end face of the anti-theft base 201, the center of the anti-theft base 201 is provided with a spline hole, the limiting seat 205 is located right above the sliding seat 204, and a circular groove is arranged in the limiting seat 205. The lower half part of the telescopic screw 215 is a screw rod, the upper part is provided with a cylindrical boss, and the top is provided with a triangular screw cap. The sliding rod 216 is a spline shaft, a threaded hole is formed in the sliding rod, and a hinge joint is arranged at the bottom of the sliding rod. The slide rod 216 is slidably mounted in the slide seat 204 through a spline, the telescopic screw 215 is rotatably mounted in the limiting seat 205 through a cylindrical boss, and a thread at the bottom of the telescopic screw 215 is matched with a threaded hole in the slide rod 216. The four bolt fixing seats 206 are respectively rotatably installed in the four bolt guide rings 203. The lower half of the bolt fixing seat 206 is a cylinder matched with an inner hole of the bolt guide ring 203, a hexagonal hole matched with the end part of the connecting bolt 208 is formed in the axis of the cylinder, a spline is arranged at the top of the cylinder of the bolt fixing seat 206, and a cylindrical pin shaft is arranged above the spline. The four connecting bolts 208 are slidably mounted in the four bolt fixing seats 206, and a compression spring 207 is respectively arranged between each connecting bolt 208 and the bolt fixing seat 206. The four first gears 217 are fixedly mounted on the four bolt fixing seats 206 through splines respectively. Theftproof base 201 central authorities are equipped with the cylinder sliding sleeve, and the rotary rod 211 lower part is cylindrical, and cylinder upper portion is equipped with the circular slot, and the cylinder top is equipped with square stand. The rotating rod 211 is rotatably installed on a cylindrical sliding sleeve in the center of the anti-theft base 201, four fourth gears 220 are rotatably installed on a cylindrical section of the rotating rod 211, a gear gasket 209 is arranged between the fourth gears 220, and the four fourth gears 220 are located between the upper end face of the cylindrical sliding sleeve in the center of the anti-theft base 201 and a gear retaining ring 221 on the anti-theft base 201. The second gear 218 is formed by a large gear and a small gear which are arranged in parallel, a circular gasket is arranged between the two gears, the third gear 219 is formed by a large gear and a small gear which are arranged in parallel, and a circular gasket is arranged below the large gear. The rotating shafts of the two second gears 218 and the two third gears 219 are uniformly arranged around the axis of the anti-theft base 201, the large gears on each of the two second gears 218 and the two third gears 219 are respectively meshed with one fourth gear 220, and the small gears on each of the two second gears 218 and the two third gears 219 are respectively meshed with one first gear 217. The hinge frame 212 is rotatably installed on a circular groove on the rotating rod 211, the middle part of the telescopic sleeve 214 is hinged on a support on the anti-theft base 201, a key groove is formed in the telescopic sleeve 214, the end parts of the two rocker arms 213 are respectively and slidably installed at the two ends of the telescopic sleeve 214, the other end of one rocker arm 213 is hinged on the hinge frame 212, and the other end of the other rocker arm 213 is hinged at the bottom of the sliding rod 216. The anti-theft cover 202 is fixedly installed on the upper end face of the anti-theft base 201, and the shaft holes in the anti-theft cover 202 correspond to the shafts on the wellhead anti-theft module 2 one by one.
The side of the cylindrical part of the rotating rod 211 is provided with a square hole, the bottom of the square hole is provided with an electromagnet 21101, and the upper side and the lower side of the square hole are provided with a flat spring 21102. The key 210 is installed in the side square hole of the rotating rod 211, the bottom of the key 210 is provided with a magnet, and grooves are formed in the upward two sides of the key. The top of the rotating rod 211 is provided with a power supply hole, and a chip for driving the electromagnet 21101 is arranged in the rotating rod 211. A key groove is arranged in the shaft hole of the fourth gear 220.
The working principle of the invention is as follows: when the wellhead sealing device is used, firstly, a wellhead flange 101 is installed on a pipeline 102, a clamping block 107 and a locking seat 104 clamp a sealing block 106 by tightening a sealing bolt 103, the sealing block 106 is deformed to be attached to the inner wall of the pipeline 102, and the wellhead is sealed; when the pressure is too high, the gas pushes up the sealing ball 109, and the sealing spring 108 is compressed; the pressure is released, and the sealing ball 109 seals the hole on the sealing ring 111 again under the action of the sealing spring 108 after the pressure is reduced; the wellhead sealing module 1 is placed on the wellhead flange 101, and four connecting bolts 208 of the wellhead sealing module 1 are aligned with bolt holes in the wellhead flange 101; firstly, a computer is connected with a chip in the rotating rod 211 through a signal wire through a power supply port, after matching is successful, the electromagnet 21101 in the rotating rod 211 is electrified, so that the key 210 is outwards popped up under the action of like polarity repulsion, the telescopic screw 215 is rotated by the triangular wrench, the sliding rod 216 slides up and down along the sliding seat 204, the rotating rod 211 is driven by the rocker arm 213 and the telescopic sleeve 214 to slide up and down, and the key 210 is scratched into the key slots of the four fourth gears 220; when the telescopic screw 215 is rotated, the rotating rod 211 is rotated by a wrench, when the resistance applied to the rotating rod 211 is suddenly increased, the telescopic screw 215 stops rotating, at this time, the key 210 is in the key slot of the fourth gear 220, the rotating rod 211 is rotated to screw the connecting bolt 208 and the wellhead flange 101 through gear transmission, and the four connecting bolts 208 are sequentially screwed and the wellhead anti-theft module 2 is fixed.
Claims (1)
1. The utility model provides a theftproof well head, includes well head sealing module (1), well head theftproof module (2), its characterized in that: a wellhead flange (101) is fixedly arranged at the top of the pipeline (102); an anti-theft base (201) of the wellhead anti-theft module (2) is fixedly arranged on a wellhead flange (101) of the wellhead sealing module (1) through four connecting bolts (208);
the wellhead sealing module (1) comprises a wellhead flange (101), a pipeline (102), a sealing bolt (103), a locking seat (104), a sliding gasket (105), a sealing block (106), a clamping block (107), a sealing spring (108), a sealing ball (109), a compression bolt (110) and a sealing ring (111); the locking seat (104) is fixedly arranged on a wellhead flange (101) through bolts, one protruding side of the locking seat (104) faces the interior of the pipeline (102), the sealing block (106) is made of rubber, and the center of the sealing block is provided with a spline hole; the clamping block (107) is a spline shaft, the lower part of the clamping block is provided with a boss, the upper side and the lower side of the clamping block are provided with threaded holes, and through holes are formed among the threaded holes; the sealing block (106) is matched with the clamping block (107) through a spline, the sealing block (106) is positioned on one side of a boss of the clamping block (107), the clamping block (107) is installed at the lower end part of the locking seat (104) through a sealing bolt (103), and the sliding gasket (105) is positioned between the locking seat (104) and the sealing block (106); a sealing ring (111) is arranged in the center of the lower end face of the clamping block (107), a sealing spring (108) is positioned in a threaded hole below the clamping block (107), a pressing bolt (110) is installed at the lower part of the clamping block (107) through threads, a through hole is formed in the middle of the pressing bolt (110), and a sealing ball (109) is positioned between the sealing spring (108) and the pressing bolt (110);
the wellhead anti-theft module (2) comprises an anti-theft base (201), an anti-theft cover (202), four bolt guide rings (203), a sliding seat (204), a limiting seat (205), four bolt fixing seats (206), four compression springs (207), four connecting bolts (208), a gear gasket (209), a key (210), a rotating rod (211), a hinge frame (212), two rocker arms (213), a telescopic sleeve (214) and a telescopic screw (215); the anti-theft device comprises a sliding rod (216), four first gears (217), two second gears (218), two third gears (219), four fourth gears (220) and a gear retaining ring (221), wherein the anti-theft base (201) is disc-shaped, four through holes are uniformly distributed in the anti-theft base (201), and four bolt guide rings (203) are respectively positioned above the four through holes in the anti-theft base (201); the sliding seat (204) is positioned on a bracket on the upper end surface of the anti-theft base (201), the center of the anti-theft base (201) is provided with a spline hole, the limiting seat (205) is positioned right above the sliding seat (204), and the limiting seat (205) is internally provided with a circular groove; the lower half part of the telescopic screw (215) is a screw rod, the upper part of the telescopic screw is provided with a cylindrical boss, and the top of the telescopic screw is provided with a triangular screw cap; the sliding rod (216) is a spline shaft, a threaded hole is formed in the sliding rod, and a hinge joint is arranged at the bottom of the sliding rod; the sliding rod (216) is slidably mounted in the sliding seat (204) through a spline, the telescopic screw (215) is rotatably mounted in the limiting seat (205) through a cylindrical boss, and a thread at the bottom of the telescopic screw (215) is matched with a threaded hole in the sliding rod (216); the four bolt fixing seats (206) are respectively and rotatably arranged in the four bolt guide rings (203); the lower half part of the bolt fixing seat (206) is a cylinder matched with an inner hole of the bolt guide ring (203), the axis of the cylinder is provided with a hexagonal hole matched with the end part of the connecting bolt (208), the top of the cylinder of the bolt fixing seat (206) is provided with a spline, and a cylindrical pin shaft is arranged above the spline; the four connecting bolts (208) are respectively arranged in the four bolt fixing seats (206) in a sliding manner, and a compression spring (207) is respectively arranged between each connecting bolt (208) and each bolt fixing seat (206); the four first gears (217) are respectively and fixedly arranged on the four bolt fixing seats (206) through splines; a cylindrical sliding sleeve is arranged in the center of the anti-theft base (201), the lower part of the rotating rod (211) is cylindrical, a circular groove is formed in the upper part of the cylinder, and a square upright column is arranged at the top of the cylinder; the rotating rod (211) is rotatably installed on a cylindrical sliding sleeve in the center of the anti-theft base (201), four fourth gears (220) are rotatably installed on a cylindrical section of the rotating rod (211), gear gaskets (209) are arranged between the fourth gears (220), and the four fourth gears (220) are positioned between the upper end face of the cylindrical sliding sleeve in the center of the anti-theft base (201) and gear retaining rings (221) on the anti-theft base (201); the second gear (218) is formed by paralleling a big gear and a small gear, a circular gasket is arranged between the two gears, the third gear (219) is formed by paralleling a big gear and a small gear, and a circular gasket is arranged below the big gear; the rotating shafts of the two second gears (218) and the two third gears (219) are uniformly arranged around the axis of the anti-theft base (201), the large gears on each of the two second gears (218) and the two third gears (219) are respectively meshed with one fourth gear (220), and the small gears on each of the two second gears (218) and the two third gears (219) are respectively meshed with one first gear (217); the hinge frame (212) is rotatably arranged on a circular groove on the rotating rod (211), the middle part of the telescopic sleeve (214) is hinged on a support on the anti-theft base (201), a key groove is formed in the telescopic sleeve (214), the end parts of the two rocker arms (213) are respectively and slidably arranged at the two ends of the telescopic sleeve (214), the other end of one rocker arm (213) is hinged on the hinge frame (212), and the other end of the other rocker arm (213) is hinged at the bottom of the sliding rod (216); the anti-theft cover (202) is fixedly arranged on the upper end surface of the anti-theft base (201), and shaft holes in the anti-theft cover (202) correspond to shafts on the wellhead anti-theft module (2) one by one;
a square hole is formed in the side face of the cylindrical part of the rotating rod (211), an electromagnet (21101) is arranged at the bottom of the square hole, and leaf springs (21102) are arranged on the upper side and the lower side of the square hole; the key (210) is arranged in a side hole of the rotating rod (211), the bottom of the key (210) is provided with a magnet, and grooves are formed in the two sides of the key in the upward direction; a power supply hole is formed in the top of the rotating rod (211), and a chip for driving the electromagnet (21101) is arranged in the rotating rod (211); a key groove is arranged in the shaft hole of the fourth gear (220).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910006574.2A CN109505552B (en) | 2019-01-04 | 2019-01-04 | Anti-theft well head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910006574.2A CN109505552B (en) | 2019-01-04 | 2019-01-04 | Anti-theft well head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109505552A CN109505552A (en) | 2019-03-22 |
| CN109505552B true CN109505552B (en) | 2020-11-27 |
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ID=65756182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910006574.2A Active CN109505552B (en) | 2019-01-04 | 2019-01-04 | Anti-theft well head |
Country Status (1)
| Country | Link |
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| CN (1) | CN109505552B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2605306Y (en) * | 2003-03-28 | 2004-03-03 | 刘祥 | Antitheft manhole cover |
| US20070172329A1 (en) * | 2006-01-25 | 2007-07-26 | Wardlaw Louis J | Theft abating stud and nut assembly for joining flanges of members of a fluid flow conduit |
| CN200967965Y (en) * | 2006-08-31 | 2007-10-31 | 宋殿凤 | Cipher lock anti-theft well cover |
| CN204125970U (en) * | 2014-05-29 | 2015-01-28 | 国家电网公司 | A kind of anti-stealing manhole cover |
| CN206158651U (en) * | 2016-10-21 | 2017-05-10 | 中国石油天然气股份有限公司 | Anti -theft well head device |
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2019
- 2019-01-04 CN CN201910006574.2A patent/CN109505552B/en active Active
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| Publication number | Publication date |
|---|---|
| CN109505552A (en) | 2019-03-22 |
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