CN116335562A - Locking device and locking system - Google Patents
Locking device and locking system Download PDFInfo
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- CN116335562A CN116335562A CN202111599590.0A CN202111599590A CN116335562A CN 116335562 A CN116335562 A CN 116335562A CN 202111599590 A CN202111599590 A CN 202111599590A CN 116335562 A CN116335562 A CN 116335562A
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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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
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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
- E21B47/00—Survey of boreholes or wells
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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Abstract
The invention belongs to the technical field of natural gas well drilling, and discloses a locking device and a locking system, wherein the locking device comprises a central pipe column, a pressure-bearing sleeve and a connecting rod assembly, the central pipe column is provided with a first flow passage and a second flow passage which are communicated, and the first flow passage is communicated with a hydraulic control device; the pressure-bearing sleeve is movably sleeved on the central pipe column, a hydraulic chamber is formed between the pressure-bearing sleeve and the central pipe column, the second flow passage is communicated with the hydraulic chamber, and when fluid in the hydraulic control device flows through the first flow passage and the second flow passage and enters the hydraulic chamber, the pressure-bearing sleeve can be driven to move along the axial direction of the central pipe column; the connecting rod assembly is connected with the pressure-bearing sleeve and the central pipe column, and when the pressure-bearing sleeve moves along the axial direction of the central pipe column, the connecting rod assembly can be driven to open and prop against the inner wall of the shaft. The locking device solves the problem of fixation of the underground instrument and the inner wall of the shaft, and is suitable for locking operation of the underground electric control instrument.
Description
Technical Field
The invention relates to the technical field of natural gas well drilling, in particular to a locking device and a locking system.
Background
The definition of natural gas, which is a narrow definition from an energy standpoint, is a mixture of hydrocarbon and non-hydrocarbon gases that are naturally contained in a subterranean porous formation. In petrogeology, oilfield gas and gas field gas are commonly referred to. The composition is based on hydrocarbons and contains non-hydrocarbon gases. The natural gas is mainly used as fuel, carbon black, chemicals and liquefied petroleum gas can be produced, and propane and butane produced from natural gas are important raw materials in modern industry. Natural gas is used as an energy source, so that the consumption of coal and petroleum can be reduced, and the problem of environmental pollution is greatly improved; the natural gas is used as a clean energy source, can reduce the discharge amount of sulfur dioxide and dust by nearly 100%, reduce the discharge amount of carbon dioxide by 60% and the discharge amount of nitrogen oxide by 50%, is beneficial to reducing the formation of acid rain, slows down the global warming effect and radically improves the environmental quality.
In the petroleum and natural gas exploration and development process, an electric control driller needs to be placed into a well by a cable to perform operations such as drilling, sampling and the like. Before construction, the instrument is fixed on the inner wall of the shaft, and the conventional mechanical anchor and hydraulic anchor in the well at present are used for realizing anchoring operation by applying pressure to a pipe column or pumping water pressure into the ground through the pipe column, and are not suitable for fixing the cable transmission type underground instrument and the inner wall of the shaft.
Accordingly, a locking device and a locking system are needed to solve the above problems.
Disclosure of Invention
According to one aspect of the invention, a locking device is provided, which solves the problem of fixing a downhole instrument and the inner wall of a shaft, and is suitable for locking operation of the downhole electronic control instrument.
To achieve the purpose, the invention adopts the following technical scheme:
the locking device comprises a central pipe column, a pressure-bearing sleeve and a connecting rod assembly, wherein the central pipe column is provided with a first flow passage and a second flow passage which are communicated, and the first flow passage is communicated with a hydraulic control device; the pressure-bearing sleeve is movably sleeved on the central pipe column, a hydraulic chamber is formed between the pressure-bearing sleeve and the central pipe column, the second flow passage is communicated with the hydraulic chamber, and when fluid in the hydraulic control device flows through the first flow passage and the second flow passage and enters the hydraulic chamber, the pressure-bearing sleeve can be driven to move along the axial direction of the central pipe column; the connecting rod assembly is connected with the pressure-bearing sleeve and the central pipe column, and when the pressure-bearing sleeve moves along the axial direction of the central pipe column, the connecting rod assembly can be driven to open and prop against the inner wall of the shaft.
Optionally, the center pipe column includes pressure-bearing movement portion and the free movement portion that link firmly each other, pressure-bearing sleeve cover is located pressure-bearing movement portion, link assembly connect in pressure-bearing sleeve with the free movement portion, pressure-bearing sleeve is close to when the free movement portion, can drive link assembly opens.
Optionally, the locking device further includes an elastic element, the elastic element is sleeved on the pressure-bearing moving portion and is clamped between the pressure-bearing sleeve and the free moving portion, and the elastic element drives the connecting rod assembly to stop in a contracted state through the pressure-bearing sleeve.
Optionally, the connecting rod assembly includes first pole portion and locking lever group, the drive end of first pole portion rotate connect in pressure-bearing sleeve, locking lever group one end rotate connect in free motion portion, the other end rotate connect in the linkage end of first pole portion, when pressure-bearing sleeve is close to free motion portion, first pole portion drives locking lever group opens.
Optionally, the locking lever set includes a second lever portion, a third lever portion, a fourth lever portion, a fifth lever portion, and a sixth lever portion; one end of the second rod part is rotationally connected with the free motion part, the other end of the second rod part is rotationally connected with one end of the third rod part and one end of the first rod part, the other end of the third rod part is rotationally connected with one end of the fourth rod part and one end of the fifth rod part, the other end of the fourth rod part is rotationally connected with the free motion part, the other end of the fifth rod part is rotationally connected with one end of the sixth rod part, and the other end of the sixth rod part is rotationally connected with the linkage end of the first rod part; the sixth and third bars are each parallel to the axis of the center tube column.
Optionally, the connecting rod assembly further comprises an abutting portion fixedly connected to the sixth rod portion, wherein an arc-shaped abutting surface is arranged on the abutting portion and configured to abut against the inner wall of the shaft.
Optionally, a plurality of grooves are spaced apart on the abutment surface.
Optionally, the connecting rod assembly is a plurality of, and a plurality of connecting rod assemblies are around the circumference equipartition setting of center tubular column.
Optionally, the locking device further comprises a sealing ring, wherein the sealing ring is fixedly connected to the central pipe column, is clamped between the central pipe column and the pressure-bearing sleeve, and seals the hydraulic chamber.
According to another aspect of the invention, a locking system is provided, which comprises a ground system, a cable and a hydraulic control device, and further comprises a locking device according to any one of the above schemes, wherein the hydraulic control device is communicated with the locking device, the ground system is electrically connected with the hydraulic control device through the cable, and the hydraulic control device can drive the locking device to act when in operation.
The invention has the beneficial effects that:
the locking device provided by the invention comprises a central pipe column, a pressure-bearing sleeve and a connecting rod assembly. The hydraulic control device sends oil into a hydraulic chamber between the pressure-bearing sleeve and the central pipe column through a first flow passage and a second flow passage in the central pipe column to form oil pressure, and the pressure-bearing sleeve is controlled to act along the axis of the central pipe column. The connecting rod assembly is connected with the pressure-bearing sleeve and the central pipe column, and when the pressure-bearing sleeve acts, the connecting rod assembly can be driven to be far away from the central pipe column and gradually propped against the inner wall of the shaft, so that locking is realized. The locking device adopts hydraulic pressure as power to drive the connecting rod assembly to move and abut against the inner wall of the shaft, and forms locking force to fix the instrument so as to perform underground construction operation, solve the problem of fixing the underground instrument and the inner wall of the shaft, and be suitable for locking operation of underground electric control instruments.
Drawings
FIG. 1 is a schematic view of a locking device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a hydraulic control device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an unlocked state structure of a locking device according to an embodiment of the present invention;
FIG. 4 is a schematic view of a locking device according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a connecting rod assembly according to an embodiment of the present invention.
In the figure:
100. a locking device; 110. a center pipe column; 111. a first flow passage; 112. a second flow passage; 113. a pressure-bearing movement part; 114. a free movement part; 115. a top block; 120. a pressure-bearing sleeve; 130. a hydraulic chamber; 140. a connecting rod assembly; 141. a first lever portion; 142. a second lever portion; 143. a third lever portion; 144. a fourth lever portion; 145. a fifth lever portion; 146. a sixth lever portion; 147. an abutting portion; 150. an elastic element;
200. a ground system;
300. a cable;
400. a hydraulic control device; 410. a motor; 420. a hydraulic pump; 430. an overflow valve; 440. an electromagnetic reversing valve; 450. and (3) a filter.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
Fig. 1 shows a schematic structural diagram of a locking device according to an embodiment of the present invention, and this embodiment provides a locking system and a locking device. The locking system comprises a locking device 100, a surface system 200, a cable 300 and a hydraulic control device 400. The hydraulic control device 400 is connected to the locking device 100, the ground system 200 is electrically connected to the hydraulic control device 400 through the cable 300, and the locking device 100 can be driven to operate when the hydraulic control device 400 operates.
Fig. 2 shows a schematic diagram of a hydraulic control device provided by an embodiment of the present invention, fig. 3 shows a schematic diagram of an unlocked state structure of a locking device provided by an embodiment of the present invention, and fig. 4 shows a schematic diagram of a locked state structure of a locking device provided by an embodiment of the present invention. Referring to fig. 2, the hydraulic control apparatus 400 includes a motor 410, a hydraulic pump 420, an overflow valve 430, an electromagnetic directional valve 440, and a filter 450.
Specifically, the ground system 200 supplies power to the motor 410 via the cable 300, the motor 410 drives the hydraulic pump 420 to operate and establish oil pressure, and the relief valve 430 regulates pressure to stabilize the hydraulic pump. The oil flow in the oil tank passes through the filter 450 and the hydraulic pump 420 and enters the electromagnetic directional valve 440, and the electromagnetic directional valve 440 is a normally open valve, and is in a reset and close state at this time, and the oil flow is blocked, and the locking device 100 is in an unlocked state as shown in fig. 3. When the solenoid valve 440 is energized, it communicates and oil flows through the solenoid directional valve 440 into the locking device 100, driving the locking device 100 and the wellbore to perform a locking action, as shown in FIG. 4. The ground system 200, the cable 300 and the hydraulic control device 400 in the embodiment are all conventional in the art, and the working principle and structure thereof are not described again.
Referring to fig. 3 and 4, the locking device 100 provided in this embodiment includes a center tube column 110, a pressure sleeve 120, and a link assembly 140. The pressure-bearing sleeve 120 is movably sleeved on the central pipe column 110, a hydraulic chamber 130 is formed between the pressure-bearing sleeve 120 and the central pipe column 110, the central pipe column 110 is provided with a first flow passage 111 and a second flow passage 112 which are communicated, and the hydraulic chamber 130 is communicated with the hydraulic control device 400 through the first flow passage 111 and the second flow passage 112. The connecting rod assembly 140 is connected to the pressure sleeve 120 and the center pipe column 110, and when the pressure sleeve 120 moves along the axis direction of the center pipe column 110, the connecting rod assembly 140 can be driven to open and abut against the inner wall of the shaft.
Specifically, the center tube column 110 is formed by connecting a first tube section and a second tube section. The first pipe joint comprises a top block 115 and a connecting pipe portion, a containing groove is formed in the top block 115, and an internal thread is formed on an inner wall of the containing groove, so that the top block 115 is communicated with the hydraulic control device 400, and oil in the hydraulic control device 400 smoothly flows into the locking device 100. The connecting pipe part is fixedly connected to the outer side of the bottom of the top block 115, the diameter of the connecting pipe part is slightly smaller than that of the top block 115, and a first shoulder structure is formed at the joint of the connecting pipe part and the top block 115.
More specifically, an external thread is disposed on a side of the connecting pipe portion facing away from the top block 115, an internal thread is disposed on an upper portion of the second pipe section, and the first pipe section is fixedly connected with the second pipe section through mutual threaded connection between the external thread and the internal thread.
More specifically, the second pipe joint comprises a pressure-bearing moving part 113 and a free moving part 114 which are fixedly connected with each other, and the diameter of the free moving part 114 is larger than that of the pressure-bearing moving part 113, and the pressure-bearing moving part 113 and the free moving part are connected to form a second shoulder structure. The first pipe joint is screwed to the pressure-bearing moving part 113, and the diameters of the first pipe joint and the pressure-bearing moving part are the same.
More specifically, the center tube column 110 is provided with a first flow passage 111 and a second flow passage 112 that are in communication. The first flow channel 111 is disposed on the first tubular column along the axial direction of the central tubular column 110, and extends into the second tubular column to be communicated with the accommodating groove inside the top block 115. The second flow passage 112 is perpendicular to the first flow passage 111 and is provided in the second pipe column, and communicates with the first flow passage 111 and the hydraulic chamber 130.
More specifically, the center tube column 110 also includes a seal ring. The sealing ring is fixedly connected to the connecting pipe portion of the first pipe joint of the central pipe column 110, is clamped between the connecting pipe portion and the pressure-bearing sleeve 120, and seals to form a hydraulic chamber 130.
Preferably, the sealing ring is sleeved with a first sealing gasket, which can play a role of enhancing sealing and ensure the sealing performance of the hydraulic chamber 130.
With continued reference to fig. 3 and 4, the pressure-receiving sleeve 120 of the locking device 100 is sleeved on the upper side of the center pipe string 110, and is sleeved on a portion of the connecting pipe portion and the pressure-receiving moving portion 113 of the first pipe joint connected to each other. The connecting rod assembly 140 is connected to the pressure-bearing sleeve 120 and the free moving part 114, and when the pressure-bearing sleeve 120 approaches the free moving part 114, the connecting rod assembly 140 can be driven to open.
Specifically, the top of the pressure-bearing sleeve 120 abuts against the first shoulder structure formed at the connection position of the top block 115 and the connecting pipe portion, and the bottom end is turned towards the axis direction of the central pipe column 110 to form a sleeve bottom parallel to the sealing ring, and the sleeve bottom abuts against the central pipe column 110. The sealing ring, the bottom of the sleeve and the part of the central tubular column 110 and the part of the bearing sleeve 120 which are clamped between the sealing ring and the bottom of the sleeve jointly enclose a sealed hydraulic chamber 130.
Preferably, a second sealing gasket is sandwiched between the bottom of the sleeve and the central column 110, which can play a role of enhancing sealing and ensuring the sealing performance of the hydraulic chamber 130.
More specifically, the second flow passage 112 is connected to the hydraulic chamber 130, and when the fluid in the hydraulic control device 400 flows through the first flow passage 111 and the second flow passage 112 and enters the hydraulic chamber 130, the pressure-bearing sleeve 120 can be driven to move toward the free moving portion 114 along the axial direction of the center pipe string 110.
Fig. 5 shows a schematic structural diagram of a connecting rod assembly according to an embodiment of the present invention. Referring to fig. 5, the link assembly 140 includes a first rod portion 141 and a locking rod set, wherein the driving end of the first rod portion 141 is rotatably connected to the pressure-bearing sleeve 120, one end of the locking rod set is rotatably connected to the free moving portion 114, the other end is rotatably connected to the linkage end of the first rod portion 141, and when the pressure-bearing sleeve 120 approaches the free moving portion 114, the first rod portion 141 drives the locking rod set to open, as shown in fig. 4.
Specifically, as shown in fig. 5, the locking lever set includes a second lever portion 142, a third lever portion 143, a fourth lever portion 144, a fifth lever portion 145, and a sixth lever portion 146. One end of the second lever portion 142 is rotatably connected to the free movement portion 114, and the other end is rotatably connected to one end of the third lever portion 143 and the first lever portion 141; the other end of the third lever portion 143 is rotatably connected to one end of the fourth lever portion 144 and one end of the fifth lever portion 145; the other end of the fourth lever portion 144 is rotatably connected to the free movement portion 114; the other end of the fifth lever 145 is rotatably connected to one end of the sixth lever 146, and the other end of the sixth lever 146 is rotatably connected to the linkage end of the first lever 141. The sixth rod portion 146 and the third rod portion 143 are always parallel to the axis of the center tube column 110, respectively, by the interlocking action of the locking rod group.
More specifically, a plurality of link assemblies 140 may be selectively disposed according to the actual downhole situation, and the plurality of link assemblies 140 may be uniformly disposed around the circumference of the center pipe string 110.
Preferably, the link assembly 140 further includes an abutment 147. The abutting portion 147 is fixedly connected to the sixth rod portion 146, and an arc-shaped abutting surface is disposed on the abutting portion 147 and configured to abut against the inner wall of the shaft.
Preferably, a plurality of grooves are formed on the abutting surface at intervals, so that friction force can be increased when the abutting portion 147 abuts against the inner wall of the shaft, and the abutting stability and firmness can be improved.
Referring to fig. 3 and 4, the locking device 100 further includes a resilient member 150. The elastic element 150 is sleeved on the pressure-bearing moving part 113, is clamped between the pressure-bearing sleeve 120 and the free moving part 114, and the bottom end of the elastic element abuts against the second shoulder structure. The elastic member 150 drives the link assembly 140 to be stopped in a contracted state by the pressure-receiving sleeve 120.
Specifically, when the pressure-bearing sleeve 120 approaches the free movement portion 114 against the action of the elastic element 150, the sleeve bottom of the pressure-bearing sleeve 120 abuts against the elastic element 150 to compress the same, and at this time, the first rod portion 141 drives the locking rod group to open, and the abutting portion 147 abuts against the inner wall of the wellbore to realize locking; when the underground construction operation is completed and the deblocking is required, the ground system 200 stops supplying power to the motor 410, at this time, the elastic element 150 pushes the pressure-bearing sleeve 120 upwards, the oil flow in the hydraulic chamber 130 flows back to the oil tank through the second flow passage 112, the first flow passage 111 and the electromagnetic directional valve 440, and the connecting rod assembly 140 is retracted, so that the resetting and unlocking are realized, as shown in fig. 3. The elastic member 150 may be a pressure spring as in the prior art.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the invention. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (10)
1. A locking device, comprising:
the device comprises a central pipe column (110), wherein the central pipe column (110) is provided with a first flow passage (111) and a second flow passage (112) which are communicated, and the first flow passage (111) is communicated with a hydraulic control device;
the pressure-bearing sleeve (120) is movably sleeved on the central pipe column (110), a hydraulic chamber (130) is formed between the pressure-bearing sleeve (120) and the central pipe column (110), the second flow passage (112) is communicated with the hydraulic chamber (130), and when fluid in the hydraulic control device flows through the first flow passage (111) and the second flow passage (112) to enter the hydraulic chamber (130), the pressure-bearing sleeve (120) can be driven to move along the axial direction of the central pipe column (110);
the connecting rod assembly (140), connecting rod assembly (140) connect in pressure-bearing sleeve (120) with center tubular column (110), pressure-bearing sleeve (120) along when center tubular column (110) axis direction motion, can drive connecting rod assembly (140) open, support the pit shaft inner wall.
2. The locking device according to claim 1, wherein the central tubular column (110) comprises a pressure-bearing moving part (113) and a free moving part (114) which are fixedly connected with each other, the pressure-bearing sleeve (120) is sleeved on the pressure-bearing moving part (113), the connecting rod assembly (140) is connected to the pressure-bearing sleeve (120) and the free moving part (114), and the connecting rod assembly (140) can be driven to open when the pressure-bearing sleeve (120) is close to the free moving part (114).
3. The locking device according to claim 2, further comprising an elastic element (150), wherein the elastic element (150) is sleeved on the pressure-bearing moving portion (113), is sandwiched between the pressure-bearing sleeve (120) and the free moving portion (114), and the elastic element (150) drives the connecting rod assembly (140) to stop in a contracted state through the pressure-bearing sleeve (120).
4. The locking device according to claim 2, wherein the link assembly (140) comprises a first rod portion (141) and a locking rod group, the driving end of the first rod portion (141) is rotatably connected to the pressure-bearing sleeve (120), one end of the locking rod group is rotatably connected to the free movement portion (114), the other end of the locking rod group is rotatably connected to the linkage end of the first rod portion (141), and the first rod portion (141) drives the locking rod group to open when the pressure-bearing sleeve (120) approaches the free movement portion (114).
5. The locking device of claim 4, wherein the locking bar set comprises a second bar (142), a third bar (143), a fourth bar (144), a fifth bar (145), and a sixth bar (146);
one end of the second rod part (142) is rotationally connected to the free motion part (114), the other end of the second rod part is rotationally connected to one end of the third rod part (143) and the first rod part (141), the other end of the third rod part (143) is rotationally connected to one end of the fourth rod part (144) and one end of the fifth rod part (145), the other end of the fourth rod part (144) is rotationally connected to the free motion part (114), the other end of the fifth rod part (145) is rotationally connected to one end of the sixth rod part (146), and the other end of the sixth rod part (146) is rotationally connected to a linkage end of the first rod part (141);
the sixth stem (146) and the third stem (143) are each parallel to the axis of the central tubular string (110).
6. The locking device of claim 5, wherein the linkage assembly (140) further comprises an abutment (147), the abutment (147) being fixedly connected to the sixth stem (146), the abutment (147) having an arcuate abutment surface disposed thereon, the abutment surface being configured to abut the wellbore inner wall.
7. The locking device of claim 6, wherein the abutment surface is provided with a plurality of grooves spaced apart.
8. The locking device according to claim 1, wherein the plurality of link assemblies (140) are provided, and the plurality of link assemblies (140) are uniformly distributed around the circumference of the center column (110).
9. The locking device according to any one of claims 1-8, further comprising a sealing ring, said sealing ring being fixedly connected to said central tubular string (110), being clamped between said central tubular string (110) and said pressure-bearing sleeve (120), and sealing off said hydraulic chamber (130).
10. A locking system, characterized by comprising a ground system (200), a cable (300) and a hydraulic control device (400), and further comprising a locking device according to any one of claims 1-9, wherein the hydraulic control device (400) is communicated with the locking device, the ground system (200) is electrically connected to the hydraulic control device (400) through the cable (300), and the hydraulic control device (400) can drive the locking device to act when in operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111599590.0A CN116335562A (en) | 2021-12-24 | 2021-12-24 | Locking device and locking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111599590.0A CN116335562A (en) | 2021-12-24 | 2021-12-24 | Locking device and locking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116335562A true CN116335562A (en) | 2023-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111599590.0A Pending CN116335562A (en) | 2021-12-24 | 2021-12-24 | Locking device and locking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116335562A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116696325A (en) * | 2023-08-02 | 2023-09-05 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Mine goaf drilling exploration equipment |
-
2021
- 2021-12-24 CN CN202111599590.0A patent/CN116335562A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116696325A (en) * | 2023-08-02 | 2023-09-05 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Mine goaf drilling exploration equipment |
| CN116696325B (en) * | 2023-08-02 | 2023-10-20 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Mine goaf drilling exploration equipment |
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