Petroleum pipeline clearing device

Abstract

The application discloses a petroleum pipeline dredging device, which comprises a first walking assembly, a second walking assembly and a drill bit assembly. The first walking assembly comprises a first shell and a first walking part. The first walking part is arranged on the outer circumferential side of the first shell and is movable along the inner-outer direction relative to the first shell. The second walking assembly is arranged on one end of the first walking assembly and is connected with the first walking assembly. The second walking assembly is movable along the length direction of the first shell relative to the first walking assembly. The second walking assembly comprises a second shell and a second walking part. The second shell is arranged on one end of the first shell and is connected with the first shell. The second walking part is arranged on the outer circumferential side of the second shell and is movable along the inner-outer direction relative to the second shell. The drill bit assembly is arranged on one end of the second walking assembly away from the first walking assembly and is connected with the second walking assembly. The petroleum pipeline dredging device has the advantages of simple structure, low cost and high dredging efficiency.

Description

Oil pipeline dredging equipment Technical Field

[0001] This invention relates to the field of pipeline cleaning technology, specifically to an oil pipeline unblocking device. Background Technology

[0002] With the continuous expansion of China's oil extraction infrastructure, offshore oil extraction projects are increasing. This leads to a growing need to lay more and more subsea pipelines to meet the demands of this high-intensity extraction. While subsea pipelines do not require extensive maintenance for a certain period, as the volume of extracted oil increases and the pipelines age, blockages or poor flow can occur.

[0003] Among related technologies, pipe dredging is troublesome and inefficient. Summary of the Invention

[0004] This invention is based on the inventor's discoveries and understanding of the following facts and problems:

[0005] In related technologies, pipeline cleaning drill bits typically require recovering the pipeline to sea level or replacing blocked sections. This incurs significant additional costs for oil extraction and transportation. Furthermore, this recovery and replacement cleaning also requires manual labor. Considering the unpredictable conditions and factors at sea, this presents considerable uncertainty and risk to pipeline drilling personnel. These harsh construction conditions severely impact both efficiency and safety.

[0006] In addition, the pipe cleaning device is not set up properly. For example, the pipe cleaning robot with publication number CN106862196A uses the walking wheels of the walking mechanism to move the pipe cleaning robot in the pipe. Since the walking mechanism is not fixed in the pipe, and the pipe cleaning robot will have a reaction force during the cleaning process, it may cause the walking mechanism to slide in the pipe and be unable to move forward, thus reducing the cleaning efficiency.

[0007] The present invention aims to at least partially solve one of the technical problems in the related art.

[0008] Therefore, embodiments of the present invention propose an oil pipeline dredging device with high dredging efficiency and low cost.

[0009] An oil pipeline unblocking device according to an embodiment of the present invention includes: a first traveling assembly, the first traveling assembly including a first shell and a first traveling part, the first traveling part being disposed on the outer peripheral side of the first shell and movable relative to the first shell in an inward and outward direction; a second traveling assembly, the second traveling assembly being disposed at one end of the first traveling assembly and connected to the first traveling assembly, the second traveling assembly being movable relative to the first traveling assembly along the length direction of the first shell, the second traveling assembly including a second shell and a second traveling part, the second shell being disposed at one end of the first shell and connected to the first shell, the second traveling part being disposed on the outer peripheral side of the second shell and movable relative to the second shell in an inward and outward direction; and a drill bit assembly disposed on the second traveling assembly. The first traveling part is located away from the first traveling component and connected to the second traveling component so that the second traveling component drives the drill bit assembly to move. The unblocking device has a first working state and a second working state. In the first working state, the first traveling part moves away from the first shell so that the first traveling part abuts against the inner circumferential surface of the pipe to fix the first traveling component inside the pipe, and the second traveling component moves away from the first traveling component. In the second working state, the second traveling part moves away from the second shell so that the second traveling part abuts against the inner circumferential surface of the pipe to fix the second traveling component inside the pipe, and the first traveling component moves towards the direction adjacent to the second traveling component.

[0010] The oil pipeline dredging device of this invention includes a first traveling component, a second traveling component, and a drill bit assembly. The first traveling component provides a support foundation for the second traveling component and the drill bit assembly, thereby improving the efficiency of the forward movement of the second traveling component and the drill bit assembly, as well as the driving force for the drill bit assembly to drill. This enables the mechanization of cleaning drill bits for marine oil pipelines and reduces the cost of seabed oil extraction and transportation.

[0011] In some embodiments, the first walking part includes a first driving member and a first plate. The first plate extends along the length direction of the first shell and is disposed on the outer periphery of the first shell. At least a portion of the first driving member is disposed inside the first shell and connected to the first plate. The first driving member is movable in an inward and outward direction so that the first driving member drives the first walking part to move in an inward and outward direction. The second walking part includes a second driving member and a second plate. The second plate extends along the length direction of the second shell and is disposed on the outer periphery of the second shell. At least a portion of the second driving member is disposed inside the second shell and connected to the second plate. The second driving member is movable in an inward and outward direction so that the second driving member drives the second walking part to move in an inward and outward direction.

[0012] In some embodiments, there are multiple first walking parts, and the multiple first walking parts are arranged at intervals along the circumference of the first shell; and / or, there are multiple second walking parts, and the multiple second walking parts are arranged at intervals along the circumference of the second shell.

[0013] In some embodiments, the first driving member includes a first telescopic member, a first rod, and a second rod. The first telescopic member is disposed inside the first housing. The middle portions of the first rod and the second rod are rotatably connected. One end of the first rod is rotatably connected to the outer peripheral surface of the first housing. The other end of the first rod is rotatably connected to the first plate and is movable relative to the first plate along the length direction of the first plate. One end of the second rod is rotatably connected to the side of the first plate facing the first housing. The other end of the second rod is rotatably connected to the first telescopic member and is movable along the length direction of the first housing, so that the first telescopic member drives the second rod to move, thereby causing the first plate to move in the inward and outward directions through the first telescopic member.

[0014] In some embodiments, the second driving member includes a second telescopic member, a third rod, and a fourth rod. The second telescopic member is disposed inside the second housing. The middle portions of the third rod and the fourth rod are rotatably connected. One end of the third rod is rotatably connected to the outer peripheral surface of the second housing, and the other end of the third rod is rotatably connected to the second plate and movable relative to the second plate along the length direction of the second plate. One end of the fourth rod is rotatably connected to the side of the second plate facing the second housing, and the other end of the fourth rod is rotatably connected to the second telescopic member and movable along the length direction of the second housing, so that the second telescopic member drives the fourth rod to move, thereby causing the second plate to move in the inward and outward directions.

[0015] In some embodiments, the outer peripheral surface of the first shell has a first groove extending along the length direction of the first shell, and the first plate has a second groove extending along the length direction of the first shell on the side facing the first shell. The first traveling part further includes a first slider and a second slider. The first slider is slidably disposed in the first groove and rotatably connected to the other end of the first rod. The second slider is slidably disposed in the second groove and is connected to the other end of the first telescopic member and the second rod, respectively. The outer peripheral surface of the second shell has a third groove extending along the length direction of the second shell, and the second plate has a fourth groove extending along the length direction of the second shell on the side facing the second shell. The second traveling part further includes a third slider and a fourth slider. The third slider is slidably disposed in the third groove and rotatably connected to the other end of the third rod. The fourth slider is slidably disposed in the fourth groove and is connected to the other end of the second telescopic member and the fourth rod, respectively.

[0016] In some embodiments, the oil pipeline unblocking device further includes a third telescopic member, which is disposed between the first shell and the second shell and is connected to the first shell and the second shell respectively, so that the third telescopic member drives the first shell and the second shell to move in opposite directions or towards each other.

[0017] In some embodiments, the first telescopic member, the second telescopic member, and the third telescopic member are all cylinders or electric push rods, etc.

[0018] In some embodiments, the drill assembly includes a motor, a third housing, and a drill body. The third housing is located at one end of the second travel assembly away from the first travel assembly, and the drill body is located at one end of the third housing away from the second travel assembly. The motor is located inside the third housing and connected to the drill assembly, so that the motor can drive the drill body to rotate relative to the third housing about the length of the third housing.

[0019] In some embodiments, the oil pipeline unblocking device further includes a recovery component, one end of which is connected to the first traveling assembly so as to recover the unblocking device via the recovery component. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the structure of the oil pipeline dredging device according to an embodiment of the present invention.

[0021] Figure 2 is a magnified view of part A in Figure 1.

[0022] Figure 3 is a schematic diagram of the structure of the first traveling component of the oil pipeline dredging device according to an embodiment of the present invention.

[0023] Figure 4 is a schematic diagram of the structure of the first traveling part of the oil pipeline dredging device according to an embodiment of the present invention.

[0024] Figure 5 is a schematic diagram of the structure of the first plate of the oil pipeline dredging device according to an embodiment of the present invention.

[0025] Oil pipeline dredging device 100;

[0026] First walking assembly 1; First driving component 11; First telescopic component 111; First rod 112; Second rod 113; First plate 12; Second slide groove 121; First slider 13; Second slider 14; First shell 15; First slide groove 151;

[0027] Second walking assembly 2; Second drive component 21; Second plate 22; Second shell 23;

[0028] Drill bit assembly 3; third housing 31; drill bit body 32. Detailed Implementation

[0029] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] The following description, with reference to the accompanying drawings, describes an oil pipeline unblocking device according to an embodiment of the present invention.

[0031] As shown in Figures 1-5, the oil pipeline unblocking device 100 according to an embodiment of the present invention includes a first traveling assembly 1, a second traveling assembly 2, and a drill bit assembly 3.

[0032] The first traveling assembly 1 includes a first housing 15 and a first traveling part. The first traveling part is located on the outer periphery of the first housing 15 and is movable relative to the first housing 15 in the inward and outward directions. Specifically, as shown in FIG1, the first housing 15 is a housing extending left and right and can be disposed inside the pipe. The first traveling part is located on the outer periphery of the first housing 15 and connected to the first housing 15. The first traveling part has a locked state and an unlocked state. In the locked state, the first traveling part moves outward so that the first traveling part abuts against the inner periphery of the pipe, thereby allowing the first traveling assembly 1 to remain stationary inside the pipe. In the unlocked state, the first traveling part moves inward so that the first traveling part approaches the first housing 15, thereby separating the first traveling part from the pipe.

[0033] The second traveling component 2 is located at one end of the first traveling component 1 and connected to it. The second traveling component 2 is movable relative to the first traveling component 1 along the length direction of the first housing 15 (the left-right direction as shown in Figure 1). The second traveling component 2 includes a second housing 23 and a second traveling part. The second housing 23 is located at one end of the first housing 15 and connected to it. The second traveling part is located on the outer periphery of the second housing 23 and is movable relative to the second housing 23 along the inward-outward direction. Specifically, as shown in Figure 1, the second traveling component 2 is located at the left end of the first traveling part and connected to the first traveling component 1. The second traveling component 2 is movable... The second traveling component 2 moves in the left and right direction, causing it to move closer to or away from the first traveling component 1. The second shell 23 is a shell that extends left and right and can be disposed inside the pipe. The second traveling part is disposed on the outer periphery of the second shell 23 and connected to the second shell 23. The first traveling part has a locked state and an unlocked state. In the locked state, the second traveling part moves outward, causing it to abut against the inner periphery of the pipe, thereby allowing the first traveling component 1 to remain stationary inside the pipe. In the unlocked state, the second traveling part moves inward, causing it to move closer to the second shell 23, thereby separating the second traveling part from the pipe.

[0034] The drill bit assembly 3 is located at the end of the second travel assembly 2 away from the first travel assembly 1 and is connected to the second travel assembly 2 so that the second travel assembly 2 drives the drill bit assembly 3 to move. The unblocking device 100 has a first working state and a second working state. In the first working state, the first travel part moves away from the first housing 15 so that the first travel part abuts against the inner circumferential surface of the pipe so that the first travel assembly 1 is fixed in the pipe. The second travel assembly 2 moves away from the first travel assembly 1. In the second working state, the second travel part moves away from the second housing 23 so that the second travel part abuts against the inner circumferential surface of the pipe so that the second travel assembly 2 is fixed in the pipe. The first travel assembly 1 moves towards the direction adjacent to the second travel assembly 2. Specifically, as shown in Figure 1, the drill bit assembly 3 is located at the left end of the second housing 23. In the first working state, the first traveling assembly 1 is in the locked state and the second traveling assembly 2 is in the unlocked state. The first traveling part abuts against the inner circumferential surface of the pipe, thereby supporting the first traveling assembly 1 inside the pipe. The second traveling assembly 2 moves to the left to allow the oil pipeline unblocking device 100 to advance inside the pipe, thereby unblocking the pipe. In the second working state, the first traveling assembly 1 is in the unlocked state and the second traveling assembly 2 is in the locked state. The second traveling part abuts against the inner circumferential surface of the pipe, thereby supporting the second traveling part inside the pipe. The first traveling assembly 1 moves to the left, thereby allowing the oil pipeline unblocking device 100 to continue to advance.

[0035] The oil pipeline dredging device 100 of this invention includes a first traveling component 1, a second traveling component 2, and a drill bit assembly 3. The traveling part of the first traveling component 1 abuts against the inner circumferential surface of the pipeline, thereby fixing the first traveling component 1 inside the pipeline and providing a support foundation for the second traveling component 2 and the drill bit assembly 3. This improves the efficiency of the forward movement of the second traveling component 2 and the drill bit assembly 3, as well as the driving force for the drill bit assembly 3 to drill. It realizes the mechanization of cleaning drill bits for offshore oil pipelines, reduces the risks borne by construction personnel, and lowers the cost of seabed oil extraction and transportation.

[0036] In some embodiments, the first traveling part includes a first driving member 11 and a first plate 12. The first plate 12 extends along the length direction of the first shell 15 (the left-right direction as shown in FIG. 1) and is disposed on the outer periphery of the first shell 15. At least a portion of the first driving member 11 is disposed inside the first shell 15 and connected to the first plate 12. The first driving member 11 can move in the inward and outward directions so that the first driving member 11 drives the first traveling part to move in the inward and outward directions. The second traveling part includes a second driving member and a second plate 22. The second plate 22 extends along the length direction of the second shell 23 and is disposed on the outer periphery of the second shell 23. At least a portion of the second driving member is disposed inside the second shell 23 and connected to the second plate 22. The second driving member can move in the inward and outward directions so that the second driving member drives the second traveling part to move in the inward and outward directions. Specifically, as shown in Figures 1-2, the first plate 12 is located on the outer periphery of the first shell 15 and is connected to the first plate 12 through the first driving member 11, and the second plate 22 is located on the outer periphery of the second shell 23 and is connected to the second shell 23 through the second driving member. Thus, the first plate 12 and the second plate 22 are moved between the locked state and the unlocked state by the first driving member 11 and the second driving member, respectively.

[0037] In some embodiments, there are multiple first traveling parts, which are spaced apart circumferentially along the first housing 15; and / or, there are multiple second traveling parts, which are spaced apart circumferentially along the second housing 23. Specifically, as shown in Figures 1-2, there are multiple first traveling parts and multiple second traveling parts. The multiple first traveling parts are equally spaced along the circumferential direction of the first housing 15, and the multiple second traveling parts are equally spaced along the circumferential direction of the second housing 23. This arrangement of multiple first traveling parts and multiple second traveling parts improves the operational stability of the first traveling assembly 1 and the second traveling assembly 2.

[0038] It is worth noting that the first and second traveling parts can be configured according to actual conditions. For example, there can be one first driving member 11 and one second driving member, and multiple first plates 12. These multiple first plates 12 are evenly spaced along the circumference of the first shell 15, and each of the multiple first plates 12 is connected to the first driving member 11, so that the first driving member 11 drives the multiple first plates 12 to move in the inward and outward directions. And / or, there can be multiple second plates 22. These multiple second plates 22 are evenly spaced along the circumference of the second shell 23, and each of the multiple second plates 22 is connected to the second driving member, so that the second driving member drives the multiple second plates 22 to move in the inward and outward directions. Thus, by having the first driving member 11 drive the multiple first plates 12 to move synchronously in the inward and outward directions, and by having the second driving member drive the multiple second plates 22 to move synchronously in the inward and outward directions, the manufacturing costs of the first and second traveling parts are reduced.

[0039] In some embodiments, the first driving member 11 includes a first telescopic member 111, a first rod 112, and a second rod 113. The first telescopic member 111 is disposed inside the first housing 15. The middle portion of the first rod 112 and the middle portion of the second rod 113 are rotatably connected. One end of the first rod 112 is rotatably connected to the outer peripheral surface of the first housing 15, and the other end of the first rod 112 is rotatably connected to the first plate 12 and is movable relative to the first plate 12 along the length direction of the first plate 12. One end of the second rod 113 is rotatably connected to the side of the first plate 12 facing the first housing 15, and the other end of the second rod 113 is rotatably connected to the first telescopic member 111 and is movable along the length direction of the first housing 15, so that the first telescopic member 111 drives the second rod 113 to move so as to drive the first plate 12 to move in the inward and outward directions through the first telescopic member 111. Specifically, as shown in Figure 4, the first telescopic member 111 is located inside the first shell 15 and can telescopically move in the left and right direction. The middle part of the first rod 112 and the middle part of the second rod 113 are hinged together, and the right end of the first rod 112 is hinged to the outer peripheral surface of the first shell 15. The left end of the first rod 112 is rotatably connected to the first plate 12 and can move in the left and right direction. The right end of the second rod 113 is hinged to the first plate 12, and the left end of the second rod 113 is rotatably hinged to the piston rod of the first telescopic member 111. Thus, the first plate 12 is moved in the inward and outward directions by the first telescopic member 111, the first rod 112 and the second rod 113.

[0040] In some embodiments, the second driving member includes a second telescopic member, a third rod, and a fourth rod. The second telescopic member is disposed inside the second housing 23. The middle portions of the third rod and the fourth rod are rotatably connected. One end of the third rod is rotatably connected to the outer peripheral surface of the second housing 23, and the other end of the third rod is rotatably connected to the second plate 22 and is movable relative to the second plate 22 along the length direction of the second plate 22. One end of the fourth rod is rotatably connected to the side of the second plate 22 facing the second housing 23, and the other end of the fourth rod is rotatably connected to the second telescopic member and is movable along the length direction of the second housing 23, so that the second telescopic member drives the fourth rod to move so as to drive the second plate 22 to move in the inward and outward directions through the second telescopic member. Specifically, the second telescopic member is located inside the second shell 23 and can telescopically move in the left and right direction. The middle parts of the third rod and the fourth rod are hinged together, and the right end of the third rod is hinged to the outer peripheral surface of the second shell 23. The left end of the third rod is rotatably connected to the second plate 22 and can move in the left and right direction. The right end of the fourth rod is hinged to the second plate 22, and the left end of the fourth rod is rotatably hinged to the piston rod of the second telescopic member. Thus, the first plate 12 is moved in the inward and outward directions by the second telescopic member, the third rod, and the fourth rod.

[0041] In some embodiments, the outer peripheral surface of the first shell 15 has a first groove 151 extending along the length direction of the first shell 15, and the first plate 12 has a second groove 121 extending along the length direction of the first shell 15 on the side facing the first shell 15. The first traveling part also includes a first slider 13 and a second slider 14. The first slider 13 is slidably disposed in the first groove 151 and rotatably connected to the other end of the first rod 112. The second slider 14 is slidably disposed in the second groove 121 and is connected to the other end of the first telescopic member 111 and the second rod 113, respectively. Specifically, as shown in Figures 2-5, the outer peripheral surface of the first shell 15 is provided with a first sliding groove 151 extending in the left-right direction and the first sliding groove 151 penetrates the first shell 15 in the inward and outward directions. The first plate 12 is provided with a second sliding groove 121 extending in the left-right direction. The first slider 13 is slidably inserted in the first sliding groove 151 and hinged to the left end of the first rod 112. The second slider 14 is slidably inserted in the second sliding groove 121 and hinged to the left end of the second rod 113 and the telescopic end of the first telescopic member 111. Thus, the arrangement of the first slider 13, the second slider 14, the first sliding groove 151 and the second sliding groove 121 limits the movement of the first rod 112 and the second rod 113, thereby ensuring that the first plate 12 moves in the inward and outward directions.

[0042] In some embodiments, the outer peripheral surface of the second shell 23 has a third sliding groove extending along the length direction of the second shell 23, and the side of the second plate 22 facing the second shell 23 has a fourth sliding groove extending along the length direction of the second shell 23. The second traveling part also includes a third slider and a fourth slider. The third slider is slidably disposed in the third sliding groove and rotatably connected to the other end of the third rod. The fourth slider is slidably disposed in the fourth sliding groove and is connected to the other end of the second telescopic member and the fourth rod, respectively. Specifically, as shown in Figure 1, the outer peripheral surface of the second shell 23 is provided with a third sliding groove extending in the left-right direction and penetrating the second shell 23 in the inward-outward direction. The second plate 22 is provided with a fourth sliding groove extending in the left-right direction. The third slider is slidably inserted in the third sliding groove and hinged to the left end of the third rod. The fourth slider is slidably inserted in the fourth sliding groove and hinged to the left end of the fourth rod and the telescopic end of the second telescopic member. Thus, the arrangement of the third slider, the fourth slider, the third sliding groove and the fourth sliding groove limits the movement of the third rod and the fourth rod, thereby ensuring that the second plate 22 moves in the inward-outward direction.

[0043] In some embodiments, a second anti-slip element is provided on the side of the first plate 12 away from the first shell 15, and a second anti-slip element is provided on the side of the second plate 22 away from the second shell 23. Both the first and second anti-slip elements are rubber parts, and both the first and second anti-slip elements are provided with anti-slip textures, which increases the friction between the first walking assembly 1 and the second walking assembly 2 and the pipe, and improves the stability of the first walking assembly 1 and the second walking assembly 2.

[0044] In some embodiments, the oil pipeline unblocking device 100 further includes a third telescopic member (not shown in the figure). The third telescopic member is disposed between the first housing 15 and the second housing 23 and is connected to both the first housing 15 and the second housing 23, so that the third telescopic member drives the first housing 15 and the second housing 23 to move in opposite directions or towards each other. Specifically, the left and right ends of the third telescopic member are connected to the left end of the first housing 15 and the right end of the second housing 23, respectively, thereby providing a power basis for the relative movement of the first traveling assembly 1 and the second traveling assembly 2 through the third telescopic member.

[0045] In some embodiments, the first telescopic member 111, the second telescopic member, and the third telescopic member are all cylinders or electric push rods. This makes the arrangement of the first telescopic member 111, the second telescopic member, and the third telescopic member more reasonable.

[0046] In some embodiments, the drill assembly 3 includes a motor (not shown in the figure), a third housing 31, and a drill body 32. The third housing 31 is located at the end of the second travel assembly 2 away from the first travel assembly 1, and the drill body 32 is located at the end of the third housing 31 away from the second travel assembly 2. The motor is located inside the third housing 31 and connected to the drill assembly 3, so that the motor can drive the drill body 32 to rotate relative to the third housing 31 about the length of the third housing 31. Specifically, as shown in Figure 1, the third housing 31 is located at the left end of the second travel assembly 2, the drill body 32 is rotatably located at the left end of the third housing 31, and the motor is located inside the third housing 31 and connected to the drill body 32, so that the motor drives the drill body 32 to rotate about the left and right.

[0047] It is worth noting that the motor can be powered by a battery or by a wire. For example, a battery can be installed in the third housing 31 to power the motor, or one end of a wire can be electrically connected to the motor, and the other end of the wire can be located outside the pipe and connected to the power supply equipment to power the motor.

[0048] In some embodiments, the oil pipeline unblocking device 100 further includes a retrieval component (not shown in the figure), one end of which is connected to the first traveling component 1 so as to retrieve the unblocking device 100. Specifically, the retrieval component can be a retractable elastic rope, which can be wound around the first housing 15. After the unblocking device 100 has finished unblocking, both the first traveling component 1 and the second traveling component 2 are in the unlocked state, so that the unblocking device 100 can be pulled out of the pipeline by the retrieval component, thereby facilitating the retrieval of the unblocking device 100.

[0049] For ease of description, the oil pipeline unblocking device 100 of the present invention will be specifically described below as a cylinder, with the first telescopic member 111, the second telescopic member, and the third telescopic member all being cylinders.

[0050] The oil pipeline unblocking device 100 also includes a gas supply pipe (not shown in the figure), a first pipe (not shown in the figure), a second pipe (not shown in the figure), and a third pipe (not shown in the figure). One end of the gas supply pipe is adapted to be connected to a compressor, and the other end of the gas supply pipe is connected to the first pipe, the second pipe, and the third pipe. The first pipe, the second pipe, and the third pipe are all connected to the first telescopic member 111, the second telescopic member, and the third telescopic member, so as to supply gas to the first telescopic member 111, the second telescopic member, and the third telescopic member. Specifically, the air supply pipe includes a first air supply pipe and a second air supply pipe. The first pipe includes a first sub-pipe and a second sub-pipe. The second pipe includes a third sub-pipe and a fourth sub-pipe. The third pipe includes a fifth sub-pipe and a sixth sub-pipe. The outlet of the first air supply pipe is connected to the inlet of the first sub-pipe, the inlet of the third sub-pipe, and the inlet of the fifth sub-pipe. The outlet of the first sub-pipe, the outlet of the third sub-pipe, and the outlet of the fifth sub-pipe are respectively connected to one end of the first telescopic member 111, one end of the second telescopic member, and one end of the third telescopic member. The outlet of the second air supply pipe is connected to the inlet of the second sub-pipe, the inlet of the fourth sub-pipe, and the inlet of the sixth sub-pipe. The outlet of the second sub-pipe, the outlet of the fourth sub-pipe, and the outlet of the sixth sub-pipe are respectively connected to the other end of the first telescopic member 111, the other end of the second telescopic member, and the other end of the third telescopic member. Compressed gas can be introduced into the inlets of the first air supply pipe and the second air supply pipe. Therefore, high-pressure gas can be supplied to the first telescopic member 111, the second telescopic member, and the third telescopic member through the gas supply pipe, the first pipe, the second pipe, and the third pipe, respectively. Alternatively, the gas supply pipe, the first pipe, the second pipe, and the third pipe can be used as recovery components to remove the unblocking device 100 from the pipe.

[0051] The oil pipeline unblocking device 100 also includes a first valve (not shown in the figure), a second valve (not shown in the figure), and a third valve (not shown in the figure). The two ends of the first valve are respectively connected to the first pipe and the first expansion joint 111, so that the first valve controls the on / off connection between the first pipe and the first expansion joint 111. The two ends of the second valve are respectively connected to the second pipe and the second expansion joint, so that the second valve controls the on / off connection between the second pipe and the second expansion joint. The two ends of the third valve are respectively connected to the third pipe and the second expansion joint, so that the third valve controls the on / off connection between the third pipe and the third expansion joint. Specifically, the first valve includes a first sub-valve and a second sub-valve, the second valve includes a third sub-valve and a fourth sub-valve, and the third valve includes a fifth sub-valve and a sixth sub-valve. The first sub-valve, the second sub-valve, the third sub-valve, the fourth sub-valve, the fifth sub-valve, and the sixth sub-valve are all solenoid valves. The first sub-valve, the second sub-valve, the third sub-valve, the fourth sub-valve, the fifth sub-valve, and the sixth sub-valve are respectively installed on the first sub-pipe, the second sub-pipe, the third sub-pipe, the fourth sub-pipe, the fifth sub-pipe, and the sixth sub-pipe, thereby controlling the extension and retraction of the first telescopic member 111, the second telescopic member, and the third telescopic member, thereby controlling the switching between the locked state and the unlocked state of the first traveling assembly 1 and the second traveling assembly 2.

[0052] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0055] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0056] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0057] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A device for unblocking oil pipelines, characterized in that, include: A first walking assembly, the first walking assembly includes a first shell and a first walking part, the first walking part is disposed on the outer peripheral side of the first shell and is movable relative to the first shell in the inward and outward directions; A second traveling assembly is located at one end of the first traveling assembly and connected to it. The second traveling assembly is movable relative to the first traveling assembly along the length of the first shell. The second traveling assembly includes a second shell and a second traveling part. The second shell is located at one end of the first shell and connected to it. The second traveling part is located on the outer periphery of the second shell and is movable relative to the second shell in an inward-outward direction. A drill bit assembly is located at the end of the second traveling assembly away from the first traveling assembly and connected to it, so that the second traveling assembly drives the drill bit assembly to move. The unblocking device has a first working state and a second working state. In the first working state, the first traveling part moves away from the first shell so that it abuts against the inner periphery of the pipe to fix the first traveling assembly inside the pipe. The second traveling assembly moves away from the first traveling assembly. In the second working state, the second traveling part moves away from the second shell so that it abuts against the inner periphery of the pipe to fix the second traveling assembly inside the pipe. The first traveling assembly moves towards the adjacent... The first walking part includes a first driving member and a first plate. The first plate extends along the length of the first shell and is located on the outer periphery of the first shell. At least a portion of the first driving member is located inside the first shell and connected to the first plate. The first driving member can move in an inward or outward direction so that the first driving member drives the first walking part to move in an inward or outward direction. The second walking part includes a second driving member and a second plate. The second plate extends along the length of the second shell and is located on the outer periphery of the second shell. At least a portion of the second driving member is located inside the second shell and connected to the second plate. The second driving member can move in an inward or outward direction so that the second driving member drives the second walking part to move in an inward or outward direction. There are multiple first walking parts, and the multiple first walking parts are spaced apart circumferentially along the first shell. And / or, there are multiple second walking parts, and the multiple second walking parts are spaced apart circumferentially along the second shell. A third telescopic member is located between the first shell and the second shell and is connected to the first shell and the second shell respectively so that the third telescopic member drives the first shell and the second shell to move in opposite directions or towards each other.

2. The oil pipeline dredging device according to claim 1, characterized in that, The first driving component includes a first telescopic component, a first rod, and a second rod. The first telescopic component is disposed inside the first housing. The middle portions of the first rod and the second rod are rotatably connected. One end of the first rod is rotatably connected to the outer peripheral surface of the first housing, and the other end of the first rod is rotatably connected to the first plate and is movable relative to the first plate along the length direction of the first plate. One end of the second rod is rotatably connected to the side of the first plate facing the first housing, and the other end of the second rod is rotatably connected to the first telescopic component and is movable along the length direction of the first housing, so that the first telescopic component drives the second rod to move, thereby driving the first plate to move in the inward and outward directions through the first telescopic component.

3. The oil pipeline unblocking device according to claim 2, characterized in that, The second driving member includes a second telescopic member, a third rod, and a fourth rod. The second telescopic member is disposed inside the second shell. The middle portions of the third rod and the fourth rod are rotatably connected. One end of the third rod is rotatably connected to the outer peripheral surface of the second shell, and the other end of the third rod is rotatably connected to the second plate and is movable relative to the second plate along the length direction of the second plate. One end of the fourth rod is rotatably connected to the side of the second plate facing the second shell, and the other end of the fourth rod is rotatably connected to the second telescopic member and is movable along the length direction of the second shell, so that the second telescopic member drives the fourth rod to move, thereby driving the second plate to move in the inward and outward directions through the second telescopic member.

4. The oil pipeline unblocking device according to claim 3, characterized in that, The first shell has a first groove extending along its length on its outer peripheral surface. The first plate has a second groove extending along its length on one side facing the first shell. The first traveling part also includes a first slider and a second slider. The first slider is slidably disposed in the first groove and rotatably connected to the other end of the first rod. The second slider is slidably disposed in the second groove and is connected to the other end of the first telescopic member and the second rod, respectively. The second shell has a third groove extending along its length on its outer peripheral surface. The second plate has a fourth groove extending along its length on one side facing the second shell. The second traveling part also includes a third slider and a fourth slider. The third slider is slidably disposed in the third groove and rotatably connected to the other end of the third rod. The fourth slider is slidably disposed in the fourth groove and is connected to the other end of the second telescopic member and the fourth rod, respectively.

5. The oil pipeline unblocking device according to claim 4, characterized in that, The first telescopic component, the second telescopic component, and the third telescopic component are all cylinders or electric push rods.

6. The oil pipeline unblocking device according to any one of claims 1-5, characterized in that, The drill bit assembly includes a motor, a third housing, and a drill bit body. The third housing is located at the end of the second travel assembly away from the first travel assembly. The drill bit body is located at the end of the third housing away from the second travel assembly. The motor is located inside the third housing and connected to the drill bit assembly, so that the motor can drive the drill bit body to rotate relative to the third housing about the length of the third housing.

7. The oil pipeline unblocking device according to any one of claims 1-5, characterized in that, It also includes a recycling component, one end of which is connected to the first walking assembly so as to recycle the unblocking device.

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