Turnable pipeline cleaner

Abstract

The invention discloses a pipeline cleaner capable of turning, which comprises a tail wheel structure arranged at one end, where the pipeline cleaner is pushed in, of a pipeline; the number of the middle wheels is at least two, and the middle wheels are distributed along the shaft core array and are in flexible connection with one end of the tail wheel structure; the head wheel structure is flexibly connected to the opposite ends of the middle wheel and the tail wheel structure and can be matched with the tail wheel structure and the middle wheel to execute spiral moving cleaning on the pipe wall; the breakthrough structure is provided with a plurality of sections of freely swinging shaft bodies, is rotationally arranged at the shaft core positions of the tail wheel structure, the middle wheel and the head wheel structure, and can be matched with the tail wheel structure to carry out breakthrough treatment on dirt in the pipe; through the arrangement of the tail wheel structure, the middle wheel, the head wheel structure and the breakthrough structure, cleaning of the inner pipe wall of the pipeline, top flushing of the pipe wall, flexible movement along the pipe wall and hammering cleaning in the pipeline can be executed, and compared with an existing pipeline cleaning mode, the pipeline cleaning robot is complete in function, simple in structural design and linkage mode and low in production and maintenance cost.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline cleaning, in particular to a pipeline cleaning device capable of turning. Background Art

[0002] In the oil, gas and chemical industries, long-distance transmission pipelines are indispensable infrastructure. Over time, various deposits such as paraffin, hydrates, sand and corrosion products will accumulate inside these pipelines. These deposits not only reduce the effective flow area of ​​the pipeline, but may also cause pipeline blockage or even damage. In order to solve this problem, the industry usually uses pigs to clean the pipelines.

[0003] Traditional pigs are designed to move in a straight line, and they are pushed forward by the fluid power inside the pipeline to remove sediments in the pipeline. However, this design has some significant problems: Traditional pipe cleaners often contain multiple components, such as sealing cups, brushes, blades, etc. These components need to be precisely matched to work effectively. The complex structure not only increases the manufacturing cost, but also increases the difficulty of maintenance.

[0004] Traditional pipe cleaners generally clean the pipe wall by sweeping, wiping, flushing, etc. However, since there are many stubborn and large pieces of dirt attached to the pipe wall, it is very likely that the dirt cannot be completely removed.

[0005] In pipelines with bends or complex layouts, traditional pigs may not be able to maintain efficient cleaning speed and effect, resulting in an extension of the overall cleaning cycle and affecting the normal operation of the pipeline.

[0006] Therefore, a pipeline pig capable of turning is proposed. Summary of the invention

[0007] The object of the present invention is to provide a pipeline pig that can be turned to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solution: a pipeline pig capable of turning, comprising: The tail wheel structure is arranged at the end of the pipeline into which the pig is pushed; The middle wheels have at least two and are distributed along the axis array and are softly connected to one end of the tail wheel structure; The head wheel structure is softly connected to the opposite ends of the middle wheel and the tail wheel structure, and can cooperate with the tail wheel structure and the middle wheel to perform spiral movement cleaning of the pipe wall; and The breakthrough structure has multiple sections of freely swinging shafts, which are rotatably arranged at the axis core positions of the tail wheel structure, the middle wheel and the first wheel structure, and can cooperate with the tail wheel structure to perform the breakthrough treatment on the dirt in the pipe; Wherein, the tail wheel structure comprises an outer ring body, a swivel is rotatably arranged inside the outer ring body, a plurality of liquid push plates are fixed on the inner ring surface of the swivel, the outer ring surface of the swivel is fixedly connected to the outer ring plate sleeved on the outer ring surface of the outer ring, brushes are fixedly arranged on the surface of the outer ring plate at equal intervals according to the thread path, an assembly through hole extending toward the axis and passing through the swivel is opened in the middle position of the outer ring surface of the brush, and a spiral tube is connected to the internal thread of the assembly through hole, a breaking rod is slidably arranged inside the spiral tube, and a reset spring is sleeved on the rod body of the breaking rod, one side of the outer ring plate is fixedly connected to the shaft frame, a telescopic rubber ring is fixedly arranged on the outer ring body on the opposite side of the shaft frame, and an internal hose for infusion is arranged inside the telescopic rubber ring; The first wheel structure comprises an externally threaded wheel body, an inner twill tube frame is integrally arranged at the middle position of the inner ring surface of the externally threaded wheel body, a first end rubber ring is fixedly arranged on the ring surface of the externally threaded wheel body opposite to the middle wheel, and a plurality of leakage holes are opened on the outer ring surface of the first end rubber ring; The breakthrough structure includes a connecting shaft, the rotating rings are movably connected by several universal shafts, and are fixedly connected to an oblique threaded rod at the opposite end of the shaft frame, a screw rod is provided at one end of the oblique threaded rod, a reset spring is sleeved on the outer side of the screw rod, the screw rod is movably connected in the butterfly hole of the butterfly hole plate, and the butterfly hole plate is fixedly set in a through hole opened at one end inside the hammer arm.

[0009] Preferably, an interface connected to the internal tank body is provided between the liquid pushing plates on the oblique upper side of the outer ring surface of the tube, and the clean and decontaminated liquid is input into the tank body through the interface. The outer ring body is provided with a liquid outlet at an axially symmetrical position of the infusion interface relative to the ring surface.

[0010] Preferably, the shaft frame is composed of a central prism-hole shaft sleeve and a mesh frame body.

[0011] Preferably, the telescopic rubber ring has good elasticity and toughness, and the ring surfaces on both sides are symmetrically provided with through holes penetrating into the interior of the telescopic rubber ring corresponding to the infusion interface and the liquid outlet of the outer ring body, and the inner ports of the two through holes are connected through an internal hose.

[0012] Preferably, the structural setting of the middle wheel is the same as that of the tail wheel, wherein most of the middle wheels do not have an axle frame, and only the middle wheel located in the middle position is equipped with a bearing frame for supporting the middle wheel, and the side ring surface of the middle wheel near the tail is fixedly connected to the telescopic rubber ring.

[0013] Preferably, the structural arrangement of the externally threaded wheel body is the same as that of most middle wheels, and the side annular surface is fixedly communicated with the middle wheel near the head end.

[0014] Preferably, the leakage holes are arranged in at least one circle, and the inner ring edge of the first end rubber ring away from the external thread wheel body is arranged with an arc.

[0015] Preferably, one end of the connecting shaft is a prism rod, which is slidably inserted inside the shaft frame and driven by the swivel.

[0016] Preferably, the oblique threaded rod is threadedly connected to the interior of the inner twill tube frame, the spiral ribbon rod is slidably confined to the interior of the inner twill tube frame by a reset spring, and passes through the interior of the inner twill tube frame and extends into the interior of the butterfly hole plate and the hammer arm, and the side of the hammer arm is provided with a connecting ring on the outer edge on the same side of the butterfly hole plate, and is rotatably connected to one end of the central spiral tube of the inner twill tube frame through the connecting ring.

[0017] Preferably, the push plate is arranged adjacent to the head end rubber ring, and cone thorns are evenly and fixedly arranged on the end surface opposite to the head end rubber ring, and a through discharge port is opened directly below the push plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The present invention can be driven by the pumped cleaning liquid to move and transport along a specified path, and the rotating ring is driven to rotate, so as to drive the brush, so that the brush can clean the pipe wall treated with the cleaning liquid in a spiral rotation manner, and force the tail wheel structure, the middle wheel structure and the head wheel structure to move along the pipe wall. At the same time, during the process of the cleaning liquid moving and transporting along the specified path, part of the liquid will push the breaking rod to impact the pipe wall or the surface of the dirt, so that the pipe wall will vibrate to a certain extent in the area, avoiding the stubborn adhesion of dirt on the pipe wall. In this way, under the dual-mode cleaning, not only the efficiency of the pipeline can be guaranteed, but also the cleaning effect can be guaranteed. The present invention, through the arrangement of the shaft frame, the inner twill pipe frame, the connecting shaft, the universal shaft, the oblique thread rod, the hammer arm, the butterfly hole plate, the screw rod and the reset spring, can be driven by the rotation of the swivel ring to move the thread and limit the retreat of the sliding thread, cooperate with the butterfly hole plate and the screw rod, and use the forward-to-reverse driving mode to continuously drive the hammer arm to perform hammer cleaning of large and stubborn dirt on the surface of the pipe wall, thereby avoiding the influence of large dirt on the device, ensuring that the device can perform the cleaning work normally, and at the same time, avoiding the adhesion of large dirt in the pipe, further enhancing the cleaning effect; The present invention can be driven by liquid thrust during liquid transportation by arranging a tail wheel structure, a middle wheel, a head wheel structure and a breakthrough structure, and can simultaneously perform cleaning of the pipe wall inside the pipe, top punching of the pipe wall, flexible movement along the pipe wall and hammer cleaning inside the pipe. Compared with the current pipeline cleaning method, it has complete functions, simple structural design and linkage method, low production and maintenance costs, good cleaning efficiency and effect, high flexibility inside the pipe, and can meet the cleaning needs of different curved pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional structural view of the present invention; Figure 2 This is a disassembled diagram of the overall structure of the present invention; Figure 3 It is a longitudinal section view of the tail wheel structure of the present invention; Figure 4 This is a disassembled diagram of the tail wheel structure of the present invention; Figure 5 is a cross-sectional view of the tail wheel structure of the present invention; Figure 6 This is a schematic diagram of the first round structure of the present invention; Figure 7 It is a schematic diagram of the breakthrough structure of the present invention.

[0020] In the figure: 1. Tail wheel structure; 101. Outer ring body; 102. Shaft frame; 103. Telescopic rubber ring; 1031. Internal hose; 104. Rotating ring; 1041. Liquid push plate; 1042. Outer ring plate; 1043. Brush; 1044. Assembly through hole; 1045. Screw tube; 1046. Return spring; 1047. Breaking rod; 2. Middle wheel; 3. First wheel structure; 301, external threaded wheel body; 302, internal twill tube frame; 303, first end rubber ring; 3031, drain hole; 4. Breakthrough structure; 401. Connecting shaft; 4011. Universal shaft; 402. Oblique threaded rod; 403. Hammer arm; 4031. Butterfly hole plate; 4032. Screw rod; 4033. Reset spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figures 1 to 7 The present invention provides a technical solution for a pipeline pig capable of turning: A pipeline pig capable of turning, comprising: A tail wheel structure 1, arranged at one end of the pipeline for pushing the pig into; The middle wheels 2 have at least two and are distributed along the axis array and are softly connected to one end of the tail wheel structure 1; The head wheel structure 3 is flexibly connected to the opposite ends of the middle wheel 2 and the tail wheel structure 1, and can cooperate with the tail wheel structure 1 and the middle wheel 2 to perform spiral movement cleaning of the pipe wall; and The breakthrough structure 4 has a plurality of freely swinging shafts, which are rotatably arranged at the axis core positions of the tail wheel structure 1, the middle wheel 2 and the first wheel structure 3, and can cooperate with the tail wheel structure 1 to perform a breakthrough treatment on the dirt in the pipe.

[0023] The tail wheel structure 1 includes an outer ring body 101, the interior of the outer ring body 101 is provided with a ring body with a cross-section of ⊥ groove, and is rotatably connected to a rotating ring 104 through the groove body, and the inner ring surface of the rotating ring 104 located in the groove is fixed with several liquid pushing plates 1041 along the annular array of the axis core, and the outer ring body 101 is provided with an interface connected to the internal groove body between the liquid pushing plates 1041 on the upper side of the outer ring surface facing the outer ring surface of the tube, and the clean and decontaminated liquid is input into the groove body through the interface, and the outer ring body 101 is provided with an output port for discharging liquid at a position symmetrical to the axis of the ring surface of the infusion interface relative to the ring surface, and a raised circular ring is fixedly provided in the middle position of the outer ring surface of the rotating ring 104, and the circular ring extends in the centrifugal direction to protrude from the outer ring body 101, and is fixedly connected to an outer ring plate 1042 sleeved on the outer ring surface of the outer ring body 101, and the surface of the outer ring plate 1042 is fixed equidistantly according to the thread path A brush 1043 is provided, and an assembly through hole 1044 extending toward the axis center and passing through the swivel 104 is provided in the middle position of the outer ring surface of the brush 1043, the assembly through holes 1044 are distributed in a circular array along the axis core, and a screw tube 1045 is connected to the internal thread, a breaking rod 1047 is slidably provided inside the screw tube 1045, and a return spring 1046 is sleeved on the rod body of the breaking rod 1047 and slidingly limited by the return spring 1046, a telescopic rubber ring 103 is fixedly provided on the outer ring body 101 on the opposite side of the shaft frame 102 by bolts, the telescopic rubber ring 103 has good elasticity and toughness, and the annular surfaces on both sides are symmetrically provided with through holes passing through the inside of the telescopic rubber ring 103 corresponding to the infusion interface and the liquid output port of the outer ring body 101, and the inner ports of the two through holes are connected by an internal hose 1031.

[0024] The structural setting of the middle wheel 2 is the same as that of the tail wheel structure 1, wherein most of the middle wheels 2 do not have an axle frame 102, and only the middle wheel 2 located in the middle position is equipped with a bearing frame for supporting the middle wheel 2, and the side ring surface of the middle wheel 2 near the tail is fixedly connected to the telescopic rubber ring 103.

[0025] The first wheel structure 3 includes an externally threaded wheel body 301. The structural setting of the externally threaded wheel body 301 is the same as that of most middle wheels 2, and the side annular surface is fixedly communicated with the middle wheel 2 close to the head end. The externally threaded wheel body 301 is fixedly provided with a head end rubber ring 303 on the annular surface opposite to the middle wheel 2. The outer annular surface of the head end rubber ring 303 is provided with a plurality of leakage holes 3031 extending outward along an annular array of the shaft core, and the leakage holes 3031 are provided in at least one circle, and the head end rubber ring 303 is provided with an arc on the inner ring edge away from the externally threaded wheel body 301.

[0026] During operation, the interface of the outer ring body 101 can be connected to the cleaning liquid input pump body, and then the pipeline can be cleaned; during cleaning, the cleaning liquid will enter the interior of the outer ring body 101 under the transportation of the pump body, and be temporarily stored between the liquid push plates 1041. Under the action of the cleaning liquid, the liquid push plates 1041 will be forced to rotate inside the outer ring body 101 by the action of the liquid. When the liquid moves to the bottom together with the rotating ring 104 and the liquid push plates 1041, the liquid will enter the inner hose 1031 through the output port below, and enter the interior of the middle wheel 2 along the inner hose 1031, and then enter the interior of the external threaded wheel body 301 along the middle wheel 2, and finally enter the head end rubber ring 303 from the external threaded wheel body 301, and infiltrate the inner wall of the pipeline through the through hole on the side of the head end rubber ring 303 to soften the dirt on the pipe wall. In this process, The rotating swivel 104 simultaneously drives the outer ring plate 1042 to rotate around the outer ring surface of the outer ring body 101. When rotating, the outer ring plate 1042 will clean the pipe wall through the brush 1043 on the surface. Since the brush 1043 is spiral, the brush 1043 will push the outer ring body 101 to move along the pipe wall with the help of the friction of the pipe wall. At the same time, the liquid entering between the liquid push plates 1041 will enter the assembly through hole 1044 and push the breaking rod 1047 along the assembly through hole 1044, so that while compressing the reset spring 1046, it will also perform hydraulic impact on the pipe wall to ensure that the dirt and debris cleaned by the brush 1043 are separated from the pipe wall. If it passes through a curved pipe section during the movement, since the telescopic rubber ring 103 is soft in texture, it will assist the outer ring body 101 to complete the deflection until the pipeline is cleaned.

[0027] In summary, through the arrangement of the outer ring body 101, the telescopic rubber ring 103, the internal hose 1031, the rotating ring 104, the liquid push plate 1041, the outer ring plate 1042, the brush 1043, the assembly through hole 1044, the spiral tube 1045, the reset spring 1046 and the breaking rod 1047, the cleaning liquid can be pumped in to drive it to move along the specified path and drive the rotating ring 104 to rotate, thereby driving the brush 1043 and making the brush 104 3 is used to clean the pipe wall after being treated with the cleaning liquid in a spiral rotation manner, and the tail wheel structure 1, the middle wheel 2 and the head wheel structure 3 are forced to move along the pipe wall. At the same time, during the movement and transportation of the cleaning liquid along the designated path, part of the liquid will push the breaking rod 1047 to impact the pipe wall or the surface of the dirt, so that the pipe wall generates a certain vibration in the area, avoiding the stubborn adhesion of the dirt on the pipe wall. In this way, under the dual-mode cleaning, not only the efficiency of the pipeline can be guaranteed, but also the cleaning effect can be guaranteed.

[0028] As an embodiment of the present invention, Figure 6 to Figure 7As shown, the outer ring plate 1042 is fixedly connected to the upper wing plate of the shaft frame 102 on the side of the outer ring body 101 where the infusion interface is configured. The shaft frame 102 is composed of a central prism sleeve and a mesh frame body; An inner twill tube frame 302 is integrally provided at the middle position of the inner annular surface of the outer thread wheel body 301 , and the inner part of the inner twill tube frame 302 has a twill thread that is easy to strip.

[0029] The breakthrough structure 4 includes a connecting shaft 401, one end of which is a prism rod, and is slidably inserted into the interior of the shaft frame 102 and driven by the swivel 104. The swivels 104 are movably connected through a plurality of universal shafts 4011, and are fixedly connected to an oblique threaded rod 402 at the opposite end of the shaft frame 102. The oblique threaded rod 402 is threadedly connected to the interior of the inner oblique threaded tube frame 302. A screw rod 4032 is provided at one end of the oblique threaded rod 402, and a reset spring is sleeved on the outer side of the screw rod 4032. Spring 4033, the screw rod 4032 is slidably confined in the interior of the inner twill tube frame 302 by resetting the spring 4033, and passes through the interior of the inner twill tube frame 302, and extends into the butterfly hole plate 4031 and the hammer arm 403. The butterfly hole plate 4031 is fixedly set in a through hole opened at one end of the hammer arm 403. The side of the hammer arm 403 is provided with an outer edge connecting ring on the same side of the butterfly hole plate 4031, and is rotatably connected to one end of the central screw tube of the inner twill tube frame 302 through the connecting ring.

[0030] During operation, during the rotation of the swivel ring 104, the shaft frame 102 is synchronously driven to rotate, and the shaft frame 102 drives the connecting shaft 401 to rotate, and the connecting shaft 401 drives the oblique threaded rod 402 to rotate, and the oblique threaded rod 402 moves along the thread of the inner twill tube frame 302, and pushes the screw rod 4032 to move forward. During the movement, the screw rod 4032 drives the hammer arm 403 to rotate through the butterfly hole plate 4031, so that the hammer arm 403 rotates along the pipe end of the inner twill tube frame 302, so as to perform the hammering on the pipe wall through the hammer end. Large and stubborn dirt is hammered out. When the oblique threaded rod 402 moves to the limited position of the internal threaded hole of the internal oblique threaded pipe rack 302, the oblique threaded rod 402 will slip and then the screw rod 4032 will be reset under the action of the reset spring 4033. The reset screw rod 4032 will reversely drive the hammer arm 403 through the butterfly hole plate 4031, causing it to rotate in the opposite direction along the pipe wall and perform the hammering and cleaning operation. This process will continue during the cleaning operation, and the generated dirt will be transported from front to back during the movement of the device.

[0031] In summary, through the arrangement of the shaft frame 102, the inner twill tube frame 302, the connecting shaft 401, the universal shaft 4011, the oblique threaded rod 402, the hammer arm 403, the butterfly hole plate 4031, the screw rod 4032 and the reset spring 4033, the rotating ring 104 can be driven to move in a threaded manner and limit the slipping of the thread, cooperate with the butterfly hole plate 4031 and the screw rod 4032, and use the forward-to-reverse driving mode to continuously drive the hammer arm 403 to perform hammer cleaning of large and stubborn dirt on the surface of the tube wall, thereby avoiding the influence of large dirt on the device and ensuring the installation. The cleaning work can be performed normally, and at the same time, the adhesion of large pieces of dirt in the pipe can be avoided, and the cleaning effect can be further enhanced; through the arrangement of the tail wheel structure 1, the middle wheel 2, the head wheel structure 3 and the breakthrough structure 4, the liquid thrust can be used as the driving force during the liquid transportation process to simultaneously perform the cleaning of the pipe wall inside the pipeline, the top punching of the pipe wall, the flexible movement along the pipe wall and the hammer cleaning inside the pipe. Compared with the current pipeline cleaning method, it has complete functions, simple structural design and linkage method, low production cost, good cleaning efficiency and effect, high flexibility inside the pipe, and can meet the cleaning needs of different curved pipes.

[0032] Working principle: When working, first move the device to the pipe mouth, then point one end of the hammer arm 403 toward the inside of the pipe, and push the device into the pipe. Before use, the position of the pipe mouth needs to be cleaned to ensure that the device can be pushed into the pipe and can operate normally. Then the interface of the outer ring body 101 can be connected to the cleaning liquid input pump body, and then the pipeline can be cleaned; during cleaning, the cleaning liquid will enter the interior of the outer ring body 101 under the transportation of the pump body, and be temporarily stored between the liquid pushing plates 1041, and under the action of the cleaning liquid, the liquid pushing plates 1041 will be affected by the liquid and force the swivel 104 to rotate inside the outer ring body 101. When the liquid rotates and moves to the bottom together with the swivel 104 and the liquid pushing plate 1041, the liquid will enter the inner hose 1031 through the output port below, and enter the interior of the middle wheel 2 along the inner hose 1031, and then enter the external thread along the middle wheel 2. The inside of the wheel body 301 finally enters the head end rubber ring 303 through the external thread wheel body 301, and penetrates into the inner wall of the pipe through the through hole on the side of the head end rubber ring 303 to soften the dirt on the pipe wall. In this process, the rotating swivel 104 simultaneously drives the outer ring plate 1042 to rotate around the outer ring surface of the outer ring body 101. When the outer ring plate 1042 rotates, it will clean the pipe wall through the brush 1043 on the surface. Since the brush 1043 is spiral, the brush 1043 will push the outer ring body 101 to move along the pipe wall with the help of the friction of the pipe wall. At the same time, the liquid entering between the liquid push plates 1041 will enter the assembly through hole 1044 and push the breaking rod 1047 along the assembly through hole 1044, so that it will compress the reset spring 1046 while also performing a hydraulic impact on the pipe wall to ensure that the dirt and debris cleaned by the brush 1043 are separated from the pipe wall.During the rotation of the swivel 104, the shaft frame 102 is also driven to rotate synchronously, and the shaft frame 102 drives the connecting shaft 401 to rotate, and the connecting shaft 401 drives the oblique threaded rod 402 to rotate, and the oblique threaded rod 402 moves along the thread of the inner twill tube frame 302. During the rotation of the swivel 104, the shaft frame 102 is driven to rotate synchronously, and the shaft frame 102 drives the connecting shaft 401 to rotate, and the connecting shaft 401 drives the oblique threaded rod 402 to rotate, and the oblique threaded rod 402 moves along the thread of the inner twill tube frame 302 and pushes the spiral rod 4032 to move forward. During the movement, the spiral rod 4032 drives the hammer arm 403 to rotate through the butterfly hole plate 4031, so that the hammer arm 403 rotates along the pipe end of the inner twill tube frame 302, so as to perform the hammer end on the pipe wall. The large and stubborn dirt is hammered off. When the oblique thread rod 402 moves to the limited position of the internal thread hole of the inner oblique thread pipe frame 302, the oblique thread rod 402 will be stripped and retreated, and then the screw rod 4032 will be reset under the action of the reset spring 4033, and the reset screw rod 4032 will reversely drive the hammer arm 403 through the butterfly hole plate 4031, so that it rotates reversely along the pipe wall and performs the hammer cleaning operation. This process will continue during the cleaning operation, and the generated dirt will be transported from front to back during the movement of the device until the pipeline is cleaned. If the device passes through a curved section during the movement, the telescopic rubber ring 103 will assist the outer ring body 101 in completing the deflection due to the soft texture of the telescopic rubber ring 103 and the high degree of freedom of rotation of the universal shaft 4011. ;

[0033] It should be noted that, according to the situation, a small pump can be provided on the internal hose 1031 to increase the flow rate of the cleaning liquid.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A turnable pipeline pig, characterized in that: include: A tail wheel structure (1) is arranged at one end of the pipeline for pushing the pig into the pipeline; The middle wheels (2) have at least two and are distributed in an array along the axis core and are softly connected to one end of the tail wheel structure (1); The head wheel structure (3) is flexibly connected to the opposite ends of the middle wheel (2) and the tail wheel structure (1), and can cooperate with the tail wheel structure (1) and the middle wheel (2) to perform spiral movement cleaning of the pipe wall; and The breakthrough structure (4) has a plurality of freely swinging shafts, which are rotatably arranged at the axis core positions of the tail wheel structure (1), the middle wheel (2) and the first wheel structure (3), and can cooperate with the tail wheel structure (1) to perform a breakthrough treatment on the dirt in the pipe; The tail wheel structure (1) comprises an outer ring body (101), a rotating ring (104) is rotatably arranged inside the outer ring body (101), a plurality of liquid push plates (1041) are fixed to the inner ring surface of the rotating ring (104), the outer ring surface of the rotating ring (104) is fixedly connected to an outer ring plate (1042) sleeved on the outer ring surface of the outer ring body (101), brushes (1043) are fixedly arranged on the surface of the outer ring plate (1042) at equal intervals according to a thread path, and a brush (1043) is provided in the middle of the outer ring surface of the brush (1043) to extend toward the axis and penetrate the rotating ring (104). An assembly through hole (1044) is provided, and a screw tube (1045) is connected to the internal thread of the assembly through hole (1044), a breaking rod (1047) is slidably provided inside the screw tube (1045), and a return spring (1046) is sleeved on the rod body of the breaking rod (1047), one side of the outer ring plate (1042) is fixedly connected to the shaft frame (102), a telescopic rubber ring (103) is fixedly provided on the opposite side of the shaft frame (102) of the outer ring body (101), and an internal hose (1031) for infusion is provided inside the telescopic rubber ring (103); The first wheel structure (3) comprises an externally threaded wheel body (301), an inner twill tube frame (302) is integrally arranged at the middle position of the inner annular surface of the externally threaded wheel body (301), a first end rubber ring (303) is fixedly arranged on the annular surface of the externally threaded wheel body (301) opposite to the middle wheel (2), and a plurality of leakage holes (3031) are opened on the outer annular surface of the first end rubber ring (303); The breakthrough structure (4) comprises a connecting shaft (401), the rotating rings (104) are movably connected to each other via a plurality of universal shafts (4011), and are fixedly connected to an oblique threaded rod (402) at the opposite end of the shaft frame (102), a screw rod (4032) is provided at one end of the oblique threaded rod (402), a reset spring (4033) is sleeved on the outer side of the screw rod (4032), the screw rod (4032) is movably connected to the butterfly hole of the butterfly hole plate (4031), and the butterfly hole plate (4031) is fixedly arranged in a through hole opened at one end inside the hammer arm (403).

2. A bendable pipeline pig according to claim 1, characterized in that: An interface communicating with the internal tank body is provided between the liquid pushing plates (1041) on the oblique upper side of the outer ring surface of the tube, and the clean and decontaminated liquid is input into the tank body through the interface. The outer ring body (101) is provided with a liquid outlet at a position symmetrical to the axis of the ring surface of the infusion interface.

3. The bendable pipeline pig according to claim 1, characterized in that: The shaft frame (102) consists of a central prism-hole shaft sleeve and a mesh frame body.

4. The bendable pipeline pig according to claim 1, characterized in that: The telescopic rubber ring (103) has good elasticity and toughness, and the ring surfaces on both sides are symmetrically provided with through holes penetrating into the interior of the telescopic rubber ring (103) corresponding to the infusion interface and the liquid outlet of the outer ring body (101), and the inner ports of the two through holes are connected via an internal hose (1031).

5. The bendable pipeline pig according to claim 1, characterized in that: The structural arrangement of the middle wheel (2) is the same as that of the tail wheel (1), wherein most of the middle wheels (2) do not have an axle frame (102), and only the middle wheel (2) located in the middle position is provided with a bearing frame for supporting the middle wheel (2), and the side ring surface of the middle wheel (2) near the tail is fixedly connected to the telescopic rubber ring (103).

6. The bendable pipeline pig according to claim 1, characterized in that: The structural arrangement of the externally threaded wheel body (301) is the same as that of most middle wheels (2), and the side annular surface is fixedly communicated with the middle wheel (2) near the head end.

7. The bendable pipeline pig according to claim 1, characterized in that: The leakage holes (3031) are arranged in at least one circle, and an arc is arranged on the inner ring edge of the head end rubber ring (303) away from the external thread wheel body (301).

8. The bendable pipeline pig according to claim 1, characterized in that: One end of the connecting shaft (401) is a prism rod, which is slidably inserted into the interior of the shaft frame (102) and is driven by the rotating ring (104).

9. The bendable pipeline pig according to claim 1, characterized in that: The oblique threaded rod (402) is threadedly connected to the interior of the inner twill tube frame (302); the spiral rod (4032) is slidably confined to the interior of the inner twill tube frame (302) by a reset spring (4033), and passes through the interior of the inner twill tube frame (302), and extends into the interior of the butterfly hole plate (4031) and the hammer arm (403); the side surface of the hammer arm (403) is provided with a connecting ring on the outer edge on the same side of the butterfly hole plate (4031), and is rotatably connected to one end of the central spiral tube of the inner twill tube frame (302) through the connecting ring.

10. The bendable pipeline pig according to claim 1, characterized in that: The push plate (403) is arranged adjacent to the head end rubber ring (303), and cone spikes (4031) are evenly and fixedly arranged on the end surface opposite to the head end rubber ring (303), and a through discharge port (4032) is opened directly below the push plate (403).

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