Pipeline cleaner with centering structure

Abstract

The invention relates to the technical field of pipeline cleaning, in particular to a pipeline cleaner with a centering structure. Comprising a fixing frame; each group of elastic telescopic frames are distributed at equal intervals in the circumferential direction, all the elastic telescopic frames are installed on the outer side wall of the fixing frame, and guide grooves which are distributed at equal intervals in the circumferential direction are formed in one end of the fixing frame; the plurality of elastic sleeves are detachably mounted on the outer side wall of the fixing frame; the annular cutting edges are arranged on the guide grooves in a sliding mode, convex columns distributed at equal intervals in the circumferential direction are arranged on the inner side faces of the annular cutting edges, and the convex columns of the annular cutting edges are located in the adjacent guide grooves; and the impact unit is arranged on the fixing frame. Impurities are evenly cleaned by the annular cutting edge through the multiple sets of elastic telescopic frames, collision of the balancing weight to the annular cutting edge is matched, the moving continuity of the annular cutting edge is improved, and the comprehensive cleaning effect of the annular cutting edge is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline cleaning, and in particular to a pipeline cleaning device with a centering structure. Background Art

[0002] In the oil, gas, chemical, water supply and drainage industries, the use of pipelines often causes sediments, corrosion products, wax accumulation and other impurities to adhere to the inner wall of the pipeline. In order to ensure the smooth and efficient operation of the pipeline, pipe cleaners are often used to clean the pipeline regularly, thereby cleaning and maintaining the equipment inside the pipeline.

[0003] When a traditional pipe cleaner is cleaning impurities attached to the inner wall of a pipeline, when the pipe cleaner encounters a large amount of impurities attached to the inner wall of the pipeline, the large amount of impurities seriously hinders the movement of the pipe cleaner, making it impossible for the pipe cleaner to completely clean the pipeline. If an excessively large squeezing force is used to push the pipe cleaner in the above situation, the cleaning knife on the pipe cleaner will be severely squeezed for a long time when the pipe cleaner passes through an area with a large amount of impurities, and the cleaning knife will gradually deform. After the deformation, the cleaning knife cannot completely clean the impurities on the inner wall of the pipeline, resulting in a poor cleaning effect of the pipe cleaner. Summary of the invention

[0004] In order to overcome the above-mentioned technical problems, the present invention provides a pipeline pig with a centering structure.

[0005] The technical implementation scheme of the present invention is: a pipeline pig with a centering structure, comprising: Fixed frame; Multiple groups of elastic telescopic frames, each group of the elastic telescopic frames is circumferentially equidistantly distributed, all the elastic telescopic frames are installed on the outer side wall of the fixed frame, the circumferentially equidistantly distributed elastic telescopic frames are used to center the fixed frame in the pipeline to be processed, the telescopic end of each elastic telescopic frame is rotatably provided with a rotating wheel, and one end of the fixed frame is provided with guide grooves circumferentially equidistantly distributed; A plurality of elastic sleeves are detachably mounted on the outer wall of the fixing frame and are used to closely adhere to the inner wall of the pipe to be processed, so as to form a multi-layer seal between the fixing frame and the pipe to be processed; An annular cutting blade is slidably arranged on the guide groove, the inner side surface of the annular cutting blade is provided with convex columns equidistantly distributed in the circumferential direction, the convex columns of the annular cutting blade are located in adjacent guide grooves, and the annular cutting blade is used to clean impurities attached to the inner wall of the pipe to be processed; An impact unit is arranged on the fixing frame, and is used for striking the annular cutting blade, so that the annular cutting blade can impact instantly and cut off the adhesion between the pipeline to be processed and the impurities.

[0006] More preferably, the guide groove comprises: A vertical section and an inclined section, wherein the vertical section is parallel to the center line of the fixing frame, and the inclined section is used to guide the annular cutting blade to rotate.

[0007] More preferably, the impact unit comprises: A plurality of first elastic telescopic rods equidistantly distributed in the circumferential direction are all fixedly connected to the fixing frame, and a counterweight block is fixedly connected to the telescopic end of the first elastic telescopic rod, and the counterweight block is extruded and matched with the annular cutting blade; A driving mechanism is disposed in the fixing frame, and the driving mechanism is extruded and matched with all the counterweight blocks to store force on all the first elastic telescopic rods.

[0008] More preferably, the driving mechanism comprises: The second elastic telescopic rod and a plurality of telescopic push rods equidistantly distributed in the circumferential direction are all fixedly connected to the inner wall of the fixed frame, the plurality of telescopic push rods correspond to the plurality of counterweight blocks one by one, the chamber of the second elastic telescopic rod is connected to the chambers of the plurality of telescopic push rods through a first conduit, and the telescopic end of the second elastic telescopic rod is in sealed sliding connection with the inner wall of the fixed frame; A plurality of sliding baffles are respectively slidably arranged on the telescopic ends of adjacent telescopic push rods, a spring is installed between the sliding baffle and the telescopic end of the adjacent telescopic push rod, the counterweight block is provided with a step groove, the sliding baffle is limitedly matched with the step groove of the adjacent counterweight block, the fixed part of the telescopic push rod is fixedly connected with a limiting block, the sliding baffle is provided with an inclined surface, and the limiting block is squeezed and matched with the inclined surface of the adjacent sliding baffle.

[0009] More preferably, the driving mechanism further comprises: The limiting posts are all slidably arranged on one side of the fixing frame close to the second elastic telescopic rod, and a spring is installed between the limiting posts and the fixing frame. The limiting posts are limitedly matched with the telescopic end of the second elastic telescopic rod.

[0010] More preferably, it also includes: A crushing unit is arranged on the fixed frame and is used for pre-crushing impurities attached to the pipe to be processed. The crushing unit includes: A first rotating shell is rotatably arranged on one end of the fixed frame close to the annular cutting blade, the first rotating shell is slidably provided with a plurality of rotary cutting blades equidistantly distributed in the circumferential direction, and a tension spring is installed between the rotary cutting blade and the first rotating shell; The power mechanism is arranged on the first guide tube and is used for driving the first rotating shell to rotate, thereby assisting the rotary cutting blade to extend from the first rotating shell.

[0011] More preferably, the power mechanism comprises: A first fixed shell, fixedly connected to the first conduit, the first fixed shell being provided with a rotating rod for limited rotation, the rotating rod being rotatably connected to the first rotating shell, and a torsion spring being fixedly connected between the first fixed shell and the rotating rod; A second rotating shell is rotatably disposed in the fixed frame and is sleeved on the outer side of the rotating rod for rotation. A spring is connected between the second rotating shell and the rotating rod. The spring is located in the second rotating shell. The second rotating shell is connected to the first rotating shell through a plurality of connecting rods. The spring is used to drive the first rotating shell to rotate. The power storage component is arranged on the rotating rod and is used for driving the mainspring to store power by utilizing the rotation of the corresponding rotating wheel.

[0012] More preferably, the power storage component includes: A first rotating sleeve, rotatably disposed on the outer side of the rotating rod, wherein the first rotating sleeve and the corresponding rotating wheel are driven by a transmission member; A second rotating sleeve is fixedly connected to the outer side of the second rotating shell and is sleeved on the rotating rod for rotation, the second rotating sleeve is provided with a sliding sleeve in a limited sliding manner, and the second rotating sleeve is fixedly connected to a ratchet; A fixing plate, fixedly connected to the inner wall of the fixing frame, the fixing plate is rotatably provided with a pawl, a torsion spring is installed between the pawl and the fixing plate, and the pawl is limitedly matched with the ratchet wheel; A first sliding frame is provided on the sliding sleeve in a limited rotation manner, the fixing plate is fixedly connected with a cylindrical rod which is slidably connected with the first sliding frame, a spring is installed between the first sliding frame and the fixing plate, the sliding sleeve is provided with a plurality of grooves, the first rotating sleeve is provided with a convex column, and the groove of the sliding sleeve is extruded and matched with the adjacent convex column on the first rotating sleeve; A limiting component is arranged on the fixing plate, and the limiting component is pressed and matched with the first sliding frame to limit the first sliding frame from resetting.

[0013] More preferably, the fixed part of the second elastic telescopic rod is slidably provided with a second sliding frame, a spring is installed between the second sliding frame and the fixed part of the second elastic telescopic rod, the second sliding frame is provided with an inclined surface, the pawl is provided with a convex column, the inclined surface of the second sliding frame is extruded and fitted with the convex column of the pawl, and the second sliding frame is extruded and fitted with the telescopic end of the second elastic telescopic rod.

[0014] More preferably, the limiting component includes: a second fixed shell, fixedly connected to the fixed plate, wherein the first fixed shell and the rotating rod cooperate to form a chamber filled with liquid, and a second conduit is connected between the second fixed shell and the first fixed shell, and the second conduit is used to guide the liquid in the chamber formed by the first fixed shell and the rotating rod to flow into the second fixed shell; Two sliding columns are slidably arranged at the two ends of the second fixed shell respectively, two sliding plates are slidably arranged in the second fixed shell, springs are fixedly connected between the sliding plates and the adjacent sliding columns, the first sliding frame and the second sliding frame are both provided with blind holes, and the blind holes of the first sliding frame and the blind holes of the second sliding frame are respectively matched with the adjacent sliding columns.

[0015] The beneficial effects of the present invention are as follows: the present invention utilizes circumferentially equidistantly distributed elastic telescopic frames to make the center line of the fixed frame always coincide with the center line of the pipe to be processed, thereby improving the uniformity of the annular cutting blade in cleaning impurities, and then cooperates with the collision of the counterweight block on the annular cutting blade to improve the movement continuity of the annular cutting blade and enhance the overall cleaning effect of the annular cutting blade; utilizes the first rotating shell to drive the rotary cutting blade to rotate, and assists the rotary cutting blade in driving and cutting and crushing impurities attached to the pipe to be processed, thereby further improving the cleaning effect of the device in cleaning impurities; utilizes the movement of two sliding columns to control the limiting and separation of the two sliding columns and the first sliding frame and the second sliding frame, thereby facilitating the device to automatically repeat the above-mentioned rotary cutting blade rotation to cut and crush impurities, thereby improving the continuous working efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a cross-sectional view of the fixing frame and the elastic sleeve of the present invention; Figure 3 It is a cross-sectional view of the second elastic telescopic rod and the telescopic push rod of the present invention; Figure 4 It is a cross-sectional view of the telescopic push rod and the sliding baffle of the present invention; Figure 5 It is a cross-sectional view of the first conduit and the first rotating shell of the present invention; Figure 6 A cross-sectional view of the rotating rod and the second rotating shell of the present invention; Figure 7 is a cross-sectional view of the first fixed shell and the rotating rod of the present invention; Figure 8 It is a cross-sectional view of the first rotating sleeve and the second rotating sleeve of the present invention; Fig. 9 An exploded view of the first rotating sleeve and the sliding sleeve of the present invention; Fig.10 It is a cross-sectional view of the second sliding frame and the second fixed shell of the present invention.

[0017] The meanings of the reference numerals in the figure are: 1. pipeline to be processed, 201. fixed frame, 202. elastic sleeve, 203. elastic telescopic frame, 204. rotating wheel, 205. guide groove, 2051. vertical section, 2052. inclined section, 301. annular cutting blade, 401. first elastic telescopic rod, 402. counterweight, 501. second elastic telescopic rod, 502. telescopic push rod, 503. first conduit, 504. sliding baffle, 505. limit block, 506. limit column, 601. first Rotating shell, 602, rotary cutting blade, 603, first fixed shell, 604, rotating rod, 605, second rotating shell, 606, spring, 607, connecting rod, 701, first rotating sleeve, 702, transmission member, 703, second rotating sleeve, 704, sliding sleeve, 705, ratchet, 706, fixed plate, 707, pawl, 708, first sliding frame, 801, second sliding frame, 901, second fixed shell, 902, second guide tube, 903, sliding column, 904, sliding plate. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] In the process of using a traditional pipe cleaner to clean impurities attached to the inner wall of a pipeline, the pipe cleaner is often inserted into the pipeline, and then liquid is injected into the pipeline to push the pipe cleaner to move, so that the pipe cleaner can clean the impurities attached to the inner wall of the pipeline. When the pipe cleaner encounters large impurities attached to the inner wall of the pipeline, the large impurities seriously hinder the movement of the pipe cleaner, making it impossible for the pipe cleaner to fully clean the pipeline, resulting in a deviation in the cleaning effect of the pipe cleaner on impurities.

[0020] A pipeline pig with a centering structure, such as Figure 1-Figure 4As shown, it includes: a fixed frame 201; multiple groups of elastic telescopic frames 203, each group of elastic telescopic frames 203 is circumferentially equidistantly distributed, all the elastic telescopic frames 203 are installed on the outer wall of the fixed frame 201, the elastic telescopic frames 203 equidistantly distributed in the circumference are used to make the fixed frame 201 centered in the pipeline 1 to be processed, and the telescopic end of each elastic telescopic frame 203 is rotatably provided with a rotating wheel 204, and one end of the fixed frame 201 is provided with a guide groove 205 equidistantly distributed in the circumference; multiple elastic sleeves 202 are all detachably installed on the outer wall of the fixed frame 201, and are used to be close to the inner wall of the pipeline 1 to be processed, so that a multi-layer seal is formed between the fixed frame 201 and the pipeline 1 to be processed; an annular cutting blade 301, slidably arranged on the guide groove 205, the inner side surface of the annular cutting blade 301 is provided with circumferentially equidistantly distributed protrusions, the protrusions of the annular cutting blade 301 are located in adjacent guide grooves 205, and the guide grooves 205 include: the annular cutting blade 301 is used to clean the impurities attached to the inner wall of the pipeline 1 to be processed; a vertical section 2051 and an inclined section 2052, the vertical section 2051 is parallel to the center line of the fixed frame 201, and the inclined section 2052 is used to guide the annular cutting blade 301 to rotate; an impact unit, which is arranged on the fixed frame 201, and the impact unit is used to impact the annular cutting blade 301, so that the annular cutting blade 301 instantly impacts and cuts off the adhesion between the pipeline 1 to be processed and the impurities.

[0021] In the above scheme, each group of elastic telescopic frames 203 includes three (this number is indicated in the figure, and the actual number of each group of elastic telescopic frames 203 can be installed in a corresponding number as needed), wherein the three elastic telescopic frames 203 in each group are equidistantly distributed in the circumferential direction, so that when the fixed frame 201 moves in the pipe 1 to be processed, the center line of the fixed frame 201 coincides with the center line of the pipe 1 to be processed. The coincidence of the center lines of the two facilitates the auxiliary elastic sleeve 202 and the annular cutting blade 301 to always fit closely with the inner wall of the pipe 1 to be processed in the circumferential direction. The elastic sleeve 202 and the annular cutting blade 301 have different sizes, which facilitates the cleaning process of the pipes 1 to be processed of different specifications by the device, thereby improving the applicability of the device.

[0022] like Figure 1 and Figure 2 As shown, the impact unit includes: a plurality of first elastic telescopic rods 401 equidistantly distributed in the circumferential direction, all of which are fixed to the fixed frame 201, and the telescopic ends of the first elastic telescopic rods 401 are fixed to counterweight blocks 402, and the counterweight blocks 402 are squeezed and matched with the annular cutting blade 301; a driving mechanism is arranged in the fixed frame 201, and the driving mechanism is squeezed and matched with all the counterweight blocks 402, so as to store force on all the first elastic telescopic rods 401.

[0023] In the above scheme, when the fixed frame 201 encounters serious obstacles in the pipeline 1 to be processed, the elastic force stored by the expansion and contraction of the first elastic telescopic rod 401 is used to make the counterweight block 402 connected to the first elastic telescopic rod 401 impact the annular cutting blade 301 and move along the guide groove 205, thereby enhancing the cleaning of impurities on the pipeline 1 to be processed by the annular cutting blade 301 and improving the cleaning effect of the device. In combination with the guidance of the inclined section 2052 in the guide groove 205, the annular cutting blade 301 rotates during the movement, wherein the rib plate on the annular cutting blade 301 drives away the impurities accumulated on the right side of the annular cutting blade 301, so that the annular cutting blade 301 is close to the impurities subsequently attached to the pipeline 1 to be processed, and combined with the above-mentioned impact, the annular cutting blade 301 is assisted to continue to move to the right.

[0024] like Figure 2-Figure 4 As shown, the driving mechanism includes: a second elastic telescopic rod 501 and a plurality of telescopic push rods 502 equidistantly distributed in the circumferential direction, all of which are fixedly connected to the inner wall of the fixed frame 201, and the plurality of telescopic push rods 502 correspond to the plurality of counterweights 402 one by one, and the chamber of the second elastic telescopic rod 501 is connected to the chamber of the plurality of telescopic push rods 502 through a first conduit 503, and the telescopic end of the second elastic telescopic rod 501 is sealed and slidably connected to the inner wall of the fixed frame 201; a plurality of sliding baffles 504 are respectively slidably arranged on the telescopic ends of adjacent telescopic push rods 502, and a spring is installed between the sliding baffle 504 and the telescopic end of the adjacent telescopic push rod 502, the counterweight 402 is provided with a step groove, and the sliding baffle 504 is limitedly matched with the step groove of the adjacent counterweight 402, and the fixed portion of the telescopic push rod 502 is fixedly connected to a limiting block 505, and the sliding baffle 504 is provided with an inclined surface, and the limiting block 505 is squeezed and matched with the inclined surface of the adjacent sliding baffle 504.

[0025] In the above scheme, the sliding baffle 504 is limitedly matched with the step groove on the adjacent counterweight block 402, and the injected liquid pushes the telescopic end of the second elastic telescopic rod 501, so that the counterweight block 402 moves to compress the adjacent first elastic telescopic rod 401, making it easier for the counterweight block 402 to hit the annular cutting blade 301.

[0026] like Figure 3 As shown, the driving mechanism also includes: a limit column 506, which is slidably arranged on the side of the fixed frame 201 close to the second elastic telescopic rod 501, and a spring is installed between the limit column 506 and the fixed frame 201, and the limit column 506 is limitedly matched with the telescopic end of the second elastic telescopic rod 501 to control the telescopic end of the second elastic telescopic rod 501 to move under the action of a specified pressure.

[0027] In the above scheme, the number of the limiting columns 506 is six (the number shown in the figure) distributed equidistantly in the circumferential direction. The six limiting columns 506 limit the telescopic end of the second elastic telescopic rod 501 to prevent the telescopic end of the second elastic telescopic rod 501 from reciprocating, ensuring that when the fixed frame 201 is in a stuck state, the telescopic end of the second elastic telescopic rod 501 moves to trigger the counterweight block 402 to hit the annular cutting blade 301, thereby enhancing the cleaning effect of the device on the impurities on the inner wall of the processing pipe 1. The left end of the upper telescopic end of the second elastic telescopic rod 501 is set as a disc, and a round table surface is set on the left side of the upper disc of the second elastic telescopic rod 501, so that the disc of the upper telescopic end of the second elastic telescopic rod 501 passes through the limiting column 506 during the resetting process of the upper telescopic end of the second elastic telescopic rod 501.

[0028] Specific working principle: the staff inserts the fixing frame 201 into the left end of the pipe 1 to be processed, wherein the annular cutting blade 301 is first inserted into the pipe 1 to be processed. After the fixing frame 201 is completely inserted into the pipe 1 to be processed, the two elastic sleeves 202, all the rotating wheels 204 and the annular cutting blade 301 are all close to the inner wall of the pipe 1 to be processed. Then the staff seals the right end of the pipe 1 to be processed, and then injects liquid into the left part of the pipe 1 to be processed. The liquid squeezes the left part of the fixing frame 201, so that the fixing frame 201 drives the annular cutting blade 30 to move to the right through the connected parts to clean the impurities attached to the inner wall of the pipe 1 to be processed.

[0029] When the impurities attached to the inner wall of the pipe 1 to be processed are too large, hindering the fixing frame 201 and the annular cutting blade 301 from moving rightward, the extrusion pressure of the liquid injected into the pipe 1 to be processed on the telescopic end of the second elastic telescopic rod 501 gradually increases, and the liquid squeezes the telescopic end of the second elastic telescopic rod 501 to move rightward, so that the telescopic end of the second elastic telescopic rod 501 passes through the limiting column 506, and at the same time, the liquid in the chamber of the second elastic telescopic rod 501 is injected into the chambers of the two telescopic push rods 502 through the first conduit 503, and then the telescopic ends of the two telescopic push rods 502 drive the adjacent sliding baffles 504 to squeeze the adjacent counterweight blocks 402 to move leftward, and the counterweight blocks 402 move to compress the adjacent first elastic telescopic rods 401.

[0030] When the sliding baffle 504 moves and contacts the adjacent limit block 505, the limit block 505 squeezes the inclined surface of the adjacent sliding baffle 504, causing the sliding baffle 504 to move and compress the adjacent spring. At the same time, the sliding baffle 504 moves and gradually disengages from the step groove of the adjacent counterweight block 402. When it is completely disengaged, the elastic force stored in the first elastic telescopic rod 401 pops out the adjacent counterweight block 402 to hit the annular cutting blade 301, thereby enhancing the cleaning force of the annular cutting blade 301 on impurities attached to the inner wall of the pipe 1 to be processed.

[0031] When the fixing frame 201 resumes moving in the pipe 1 to be processed, the fixing frame 201 drives the parts thereon to move together, so that the squeezing force of the liquid in the pipe 1 to be processed on the telescopic end of the second elastic telescopic rod 501 is gradually restored. At this time, under the action of the elastic force stored in the second elastic telescopic rod 501, the telescopic end of the second elastic telescopic rod 501 moves in the opposite direction and resets, and at the same time, the corresponding parts move in the opposite direction and reset, wherein the sliding baffle 504 moves in the opposite direction and cooperates with the step groove of the adjacent counterweight block 402 again. When the movement of the subsequent fixing frame 201 is stuck again, the above operation is repeated until the fixing frame 201 extends from the right end of the pipe 1 to be processed, and the cleaning of the pipe 1 to be processed is completed.

[0032] In a further embodiment, Figure 5 As shown, it also includes: a crushing unit, which is arranged on the fixed frame 201 and is used to pre-crush the impurities attached to the processed pipe 1, and the crushing unit includes: a first rotating shell 601, which is rotatably arranged on one end of the fixed frame 201 close to the annular cutting blade 301, and the first rotating shell 601 is slidably provided with a plurality of rotary cutting blades 602 distributed equidistantly in the circumferential direction, and a tension spring is installed between the rotary cutting blade 602 and the first rotating shell 601; a power mechanism, which is arranged on the first guide tube 503, and is used to drive the first rotating shell 601 to rotate, and assist the rotary cutting blade 602 to extend from the first rotating shell 601.

[0033] In the above solution, the rotary cutting blade 602 is arranged at an angle. Figure 1 For example, when viewed from left to right, all the rotary cutting blades 602 rotate counterclockwise, and the first rotating shell 601 rotates to make all the rotary cutting blades 602 extend out due to the centrifugal effect. The extended rotary cutting blades 602 rotate to pre-cut and crush the impurities attached to the inner wall of the pipe to be processed 1, and drive the impurities in the pipe to be processed 1 to move to the right, thereby further improving the cleaning effect of the device.

[0034] like Figure 6 and Figure 7 As shown, the power mechanism includes: a first fixed shell 603, which is fixedly connected to the first guide tube 503, and the first fixed shell 603 is provided with a rotating rod 604 in a limited rotation manner. The rotating rod 604 is rotatably connected to the first rotating shell 601, and a torsion spring is fixedly connected between the first fixed shell 603 and the rotating rod 604; a second rotating shell 605, which is rotatably set in the fixed frame 201 and is sleeved on the outer side of the rotating rod 604 for rotation, and a spring 606 is connected between the second rotating shell 605 and the rotating rod 604, and the spring 606 is located in the second rotating shell 605. The second rotating shell 605 is connected to the first rotating shell 601 through a plurality of connecting rods 607, and the spring 606 is used to drive the first rotating shell 601 to rotate; a power storage component, which is arranged on the rotating rod 604 and is used to drive the spring 606 to store power by the rotation of the corresponding rotating wheel 204.

[0035] In the above scheme, the twisting force of the mainspring 606 is utilized to increase the rotational force of the first rotating shell 601. By changing the elastic force stored in the mainspring 606, the rotational speed of the first rotating shell 601 is controlled, thereby controlling the extension length of the rotary cutting blade 602 and the degree of pre-crushing of impurities on the inner wall of the processing pipe 1 by the rotary cutting blade 602, thereby further improving the applicability of the device.

[0036] like Figure 5 , Figure 6 , Figure 8 and Fig. 9 As shown, the power storage component includes: a first rotating sleeve 701, which is rotatably arranged on the outer side of the rotating rod 604, and the first rotating sleeve 701 and the corresponding rotating wheel 204 are transmitted through a transmission member 702; a second rotating sleeve 703, which is fixedly connected to the outer side of the second rotating shell 605 and is sleeved on the rotating rod 604 for rotation, and the second rotating sleeve 703 is provided with a sliding sleeve 704 in a limited sliding manner, and the second rotating sleeve 703 is fixedly connected to a ratchet 705; a fixed plate 706, which is fixedly connected to the inner wall of the fixed frame 201, and the fixed plate 706 is rotatably provided with a pawl 707, and a torsion spring is installed between the pawl 707 and the fixed plate 706, and the pawl 707 and the fixed plate 706 are connected. The ratchet wheel 705 is limited in position and is used to limit the release of the mainspring 606 after power is stored; the first sliding frame 708 is set on the sliding sleeve 704 in a limited rotation manner, the fixed plate 706 is fixed with a cylindrical rod slidably connected to the first sliding frame 708, a spring is installed between the first sliding frame 708 and the fixed plate 706, the sliding sleeve 704 is provided with a plurality of grooves, the first rotating sleeve 701 is provided with a convex column, the groove of the sliding sleeve 704 is squeezed and matched with the adjacent convex column on the first rotating sleeve 701; the limiting component is set on the fixed plate 706, the limiting component is squeezed and matched with the first sliding frame 708, and is used to limit the first sliding frame 708 from resetting.

[0037] In the above scheme, the transmission member 702 is composed of a rotating shaft and two sets of bevel gear sets. The groove on the sliding sleeve 704 is V-shaped, which is convenient for the convex column on the first rotating sleeve 701 to disengage from the adjacent groove on the sliding sleeve 704. In the initial state, the spring between the first sliding frame 708 and the fixed plate 706 is in a compressed state. When the torque stored in the mainspring 606 is greater than the limiting force of the spring on the fixed plate 706 acting between the groove on the sliding sleeve 704 and the adjacent convex column on the first rotating sleeve 701, the first rotating sleeve 701 rotates to separate the limiting cooperation with the groove on the sliding sleeve 704, and the power transmission between the first rotating sleeve 701 and the sliding sleeve 704 is separated, and the torsion spring connected to the pawl 707 is in a torsion state, so that the pawl 707 is close to the ratchet 705, limiting the reverse rotation of the ratchet 705, and completing the power storage operation of the mainspring 606.

[0038] like Figure 5 and Fig. 9As shown, the fixed part of the second elastic telescopic rod 501 is slidably provided with a second sliding frame 801, a spring is installed between the second sliding frame 801 and the fixed part of the second elastic telescopic rod 501, the second sliding frame 801 is provided with an inclined surface, the pawl 707 is provided with a convex column, the inclined surface of the second sliding frame 801 is squeezed and matched with the convex column of the pawl 707, and the second sliding frame 801 is squeezed and matched with the telescopic end of the second elastic telescopic rod 501.

[0039] In the above scheme, the telescopic end of the second elastic telescopic rod 501 is used to squeeze the second sliding frame 801, so that the inclined surface of the second sliding frame 801 squeezes the protrusion of the pawl 707, so that the pawl 707 is released from the ratchet wheel 705, so that the torque stored in the spring 606 is released to pre-crush the impurities.

[0040] like Figure 8 and Fig.10 As shown, the limiting component includes: a second fixed shell 901, which is fixedly connected to the fixed plate 706, the first fixed shell 603 and the rotating rod 604 cooperate to form a chamber filled with liquid, and a second conduit 902 is connected between the second fixed shell 901 and the first fixed shell 603, and the second conduit 902 is used to guide the liquid in the cavity composed of the first fixed shell 603 and the rotating rod 604 to flow into the second fixed shell 901; two sliding columns 903, which are respectively slidably arranged at both ends of the second fixed shell 901, and two sliding plates 904 are slidably arranged in the second fixed shell 901, and a spring is fixedly connected between the sliding plate 904 and the adjacent sliding column 903, and the first sliding frame 708 and the second sliding frame 801 are both provided with blind holes, and the blind holes of the first sliding frame 708 and the second sliding frame 801 are respectively limited and matched with the adjacent sliding columns 903.

[0041] In the above scheme, in the initial state, the two sliding columns 903 will not be inserted into the blind holes of the first sliding frame 708 and the second sliding frame 801, but when the spring 606 is accumulating power, the rotating rod 604 first rotates to push the liquid in the first fixed shell 603 into the second fixed shell 901, so that the two sliding columns 903 move a distance to the right, which is convenient for the subsequent two sliding columns 903 to limit the first sliding frame 708 and the second sliding frame 801, so that the spring 606 continues to release torque, helping the device to continuously rotate and crush impurities, and through the above arrangement, it is convenient for the device to repeat the above-mentioned rotational crushing.

[0042] Specific working principle: when the fixed frame 201 drives the connected parts to move in the pipeline 1 to be processed, the rotating wheel 204 rotates in contact with the inner wall of the pipeline 1 to be processed, wherein the corresponding rotating wheel 204 rotates through the transmission member 702 to drive the first rotating sleeve 701, the sliding sleeve 704, the second rotating sleeve 703, and the second rotating shell 605 to rotate, the second rotating shell 605 rotates to drive the spring 606 to rotate, the spring 606 drives the rotating rod 604 to rotate, the rotating rod 604 rotates to twist the connected torsion spring, and squeezes the liquid between the rotating rod 604 and the first fixed shell 603 into the second fixed shell 901 through the second conduit 902, wherein the liquid squeezes the two sliding plates 904, so that the two sliding plates 904 move to compress the adjacent springs, wherein the upper sliding column 903 is close to the second sliding frame 801, and the lower sliding column 903 is close to the lower end of the second fixed shell 901, at this time, due to the limitation of the first fixed shell 603, the rotating rod 604 cannot continue to rotate.

[0043] As the fixed frame 201 continues to move, the second rotating shell 605 continues to drive the mainspring 606 to rotate. At this time, the mainspring 606 is twisted and stored. When the stored torque of the mainspring 606 is greater than the limiting force between the two grooves on the sliding sleeve 704 and the two protruding columns on the first rotating sleeve 701, the protruding columns on the first rotating sleeve 701 squeeze the grooves on the sliding sleeve 704, so that the sliding sleeve 704 drives the first sliding frame 708 to move rightward, wherein the first sliding frame 708 moves rightward so that its upper blind hole is directly opposite to the lower sliding column 903. At this time, under the action of the adjacent spring elastic force, the lower sliding column 903 is inserted into the blind hole of the first sliding frame 708, so that the power transmission between the first rotating sleeve 701 and the sliding sleeve 704 is disconnected. At this time, due to the limitation of the ratchet 705 by the pawl 707, the mainspring 606 maintains the state after storing power.

[0044] When the movement of the fixed frame 201 pauses, the above-mentioned operation process of the counterweight block 402 hitting the annular cutting blade 301 is repeated. When this method still fails to move the fixed frame 201, the telescopic end of the second elastic telescopic rod 501 continues to move to squeeze the second sliding frame 801 to move. The second sliding frame 801 moves so that its upper inclined surface squeezes the protruding column of the pawl 707. The blind hole of the second sliding frame 801 is opposite to the sliding column 903 on the upper side. The sliding column 903 will be inserted into the blind hole of the second sliding frame 801 to limit it. The pawl 707 is squeezed and swung to release the fit with the ratchet 705. Subsequently, the spring 606 releases the stored torque through the second rotating shell 605 and the connecting rod 607 to drive the first rotating shell 601 to rotate. The first rotating shell 601 rotates to make the rotary cutting blade 602 cut and crush the impurities in the pipeline 1 to be processed, thereby assisting the device to efficiently and thoroughly clean the impurities in the pipeline.

[0045] During the release of the spring 606, the two sliding columns 903 continue to limit the first sliding frame 708 and the second sliding frame 801. After the torque stored in the spring 606 is completely released, the torsion spring connected to the rotating rod 604 is reset, causing the liquid in the second fixed shell 901 to flow in the opposite direction. At the same time, the two sliding plates 904 drive the two sliding columns 903 to move in the opposite direction through the connected springs. The two sliding columns 903 release the limits on the first sliding frame 708 and the second sliding frame 801. Subsequently, under the elastic force of the springs connected to the two, the first sliding frame 708 and the second sliding frame 801 move in the opposite direction and reset, and then the fixed frame 201 moves to repeat the above operation.

[0046] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipeline pig with a centering structure, characterized in that: Included are: Fixed frame (201); A plurality of groups of elastic telescopic frames (203), each group of the elastic telescopic frames (203) being equidistantly distributed in the circumferential direction, all of the elastic telescopic frames (203) being mounted on the outer wall of the fixed frame (201), the elastic telescopic frames (203) being equidistantly distributed in the circumferential direction being used to center the fixed frame (201) in the pipe (1) to be processed, a rotating wheel (204) being rotatably provided at the telescopic end of each of the elastic telescopic frames (203), and one end of the fixed frame (201) being provided with guide grooves (205) equidistantly distributed in the circumferential direction; A plurality of elastic sleeves (202) are detachably mounted on the outer wall of the fixing frame (201) and are used to closely adhere to the inner wall of the pipe to be processed (1), thereby forming a multi-layer seal between the fixing frame (201) and the pipe to be processed (1); an annular cutting blade (301) slidably disposed on the guide groove (205); the inner side surface of the annular cutting blade (301) is provided with circumferentially equidistantly distributed protrusions; the protrusions of the annular cutting blade (301) are located in adjacent guide grooves (205); the annular cutting blade (301) is used to clean impurities attached to the inner wall of the pipe (1) to be processed; An impact unit is arranged on the fixing frame (201), and is used to impact the annular cutting blade (301), so as to achieve instantaneous impact of the annular cutting blade (301) and cut off the adhesion between the pipeline (1) to be processed and the impurities.

2. A pipeline pig with a centering structure according to claim 1, characterized in that: The guide groove (205) comprises: A vertical section (2051) and an inclined section (2052), wherein the vertical section (2051) is parallel to the center line of the fixing frame (201), and the inclined section (2052) is used to guide the annular cutting blade (301) to rotate.

3. A pipeline pig with a centering structure according to claim 1, characterized in that: The impact unit comprises: A plurality of first elastic telescopic rods (401) equidistantly distributed in the circumferential direction are all fixedly connected to the fixing frame (201); a counterweight block (402) is fixedly connected to the telescopic end of each of the first elastic telescopic rods (401); and the counterweight block (402) is extruded and matched with the annular cutting blade (301); A driving mechanism is arranged in the fixing frame (201), and the driving mechanism is pressed and matched with all the counterweight blocks (402) to store force on all the first elastic telescopic rods (401).

4. A pipeline pig with a centering structure according to claim 3, characterized in that: The driving mechanism comprises: The second elastic telescopic rod (501) and a plurality of circumferentially equidistantly distributed telescopic push rods (502) are all fixedly connected to the inner wall of the fixed frame (201); the plurality of telescopic push rods (502) correspond one-to-one to the plurality of counterweights (402); the chamber of the second elastic telescopic rod (501) is connected to the chambers of the plurality of telescopic push rods (502) via a first conduit (503); and the telescopic end of the second elastic telescopic rod (501) is in sealed sliding connection with the inner wall of the fixed frame (201); A plurality of sliding baffles (504) are respectively slidably arranged on the telescopic ends of the adjacent telescopic push rods (502); a spring is installed between the sliding baffles (504) and the telescopic ends of the adjacent telescopic push rods (502); the counterweight block (402) is provided with a step groove; the sliding baffles (504) and the step groove of the adjacent counterweight block (402) are limitedly matched; the fixed portion of the telescopic push rod (502) is fixedly connected to a limiting block (505); the sliding baffles (504) are provided with an inclined surface; the limiting block (505) and the inclined surface of the adjacent sliding baffles (504) are pressed and matched.

5. A pipeline pig with a centering structure according to claim 4, characterized in that: The driving mechanism also includes: The limiting posts (506) are slidably arranged on a side of the fixing frame (201) close to the second elastic telescopic rod (501), and a spring is installed between the limiting posts (506) and the fixing frame (201), and the limiting posts (506) are limitedly matched with the telescopic end of the second elastic telescopic rod (501).

6. A pipeline pig with a centering structure according to claim 4, characterized in that: Also included are: A crushing unit is arranged on the fixed frame (201) and is used for pre-crushing impurities attached to the pipe (1) to be processed. The crushing unit comprises: a first rotating shell (601) rotatably disposed on one end of the fixed frame (201) close to the annular cutting blade (301), the first rotating shell (601) being slidably provided with a plurality of rotary cutting blades (602) equidistantly distributed in the circumferential direction, and a tension spring being installed between the rotary cutting blades (602) and the first rotating shell (601); A power mechanism is arranged on the first conduit (503) and is used to drive the first rotating shell (601) to rotate, thereby assisting the rotary cutting blade (602) to extend from the first rotating shell (601).

7. A pipeline pig with a centering structure according to claim 6, characterized in that: The power mechanism comprises: a first fixed shell (603) fixedly connected to the first conduit (503); the first fixed shell (603) is provided with a rotating rod (604) for limited rotation; the rotating rod (604) is rotatably connected to the first rotating shell (601); a torsion spring is fixedly connected between the first fixed shell (603) and the rotating rod (604); a second rotating shell (605) rotatably disposed in the fixed frame (201) and sleeved on the outer side of the rotating rod (604) for rotation; a spring (606) is connected between the second rotating shell (605) and the rotating rod (604); the spring (606) is located in the second rotating shell (605); the second rotating shell (605) is connected to the first rotating shell (601) via a plurality of connecting rods (607); the spring (606) is used to drive the first rotating shell (601) to rotate; A power storage component is arranged on the rotating rod (604) and is used to drive the mainspring (606) to store power by utilizing the rotation of the corresponding rotating wheel (204).

8. A pipeline pig with a centering structure according to claim 7, characterized in that: The power storage component comprises: A first rotating sleeve (701) is rotatably arranged on the outer side of the rotating rod (604), and transmission is performed between the first rotating sleeve (701) and the corresponding rotating wheel (204) via a transmission member (702); A second rotating sleeve (703) is fixedly connected to the outer side of the second rotating shell (605) and is sleeved on the rotating rod (604) for rotation; the second rotating sleeve (703) is provided with a sliding sleeve (704) in a limited sliding manner; and the second rotating sleeve (703) is fixedly connected to a ratchet (705); A fixing plate (706) is fixedly connected to the inner wall of the fixing frame (201); a pawl (707) is rotatably provided on the fixing plate (706); a torsion spring is installed between the pawl (707) and the fixing plate (706); the pawl (707) is limitedly matched with the ratchet wheel (705); A first sliding frame (708) is rotatably arranged on the sliding sleeve (704) in a limited position, the fixed plate (706) is fixedly connected with a cylindrical rod slidably connected to the first sliding frame (708), a spring is installed between the first sliding frame (708) and the fixed plate (706), the sliding sleeve (704) is provided with a plurality of grooves, the first rotating sleeve (701) is provided with a convex column, and the grooves of the sliding sleeve (704) are extruded and matched with adjacent convex columns on the first rotating sleeve (701); A limiting component is arranged on the fixing plate (706), and the limiting component is pressed and matched with the first sliding frame (708) to limit the first sliding frame (708) from resetting.

9. A pipeline pig with a centering structure according to claim 8, characterized in that: The fixed part of the second elastic telescopic rod (501) is slidably provided with a second sliding frame (801), a spring is installed between the second sliding frame (801) and the fixed part of the second elastic telescopic rod (501), the second sliding frame (801) is provided with an inclined surface, the ratchet (707) is provided with a convex column, the inclined surface of the second sliding frame (801) is pressed and matched with the convex column of the ratchet (707), and the second sliding frame (801) is pressed and matched with the telescopic end of the second elastic telescopic rod (501).

10. A pipeline pig with a centering structure according to claim 9, characterized in that: The limiting component includes: a second fixed shell (901) fixedly connected to the fixed plate (706); the first fixed shell (603) and the rotating rod (604) cooperate to form a chamber filled with liquid; a second conduit (902) is connected between the second fixed shell (901) and the first fixed shell (603); the second conduit (902) is used to guide the liquid in the chamber formed by the first fixed shell (603) and the rotating rod (604) to flow into the second fixed shell (901); Two sliding columns (903) are respectively slidably arranged at the two ends of the second fixed shell (901); two sliding plates (904) are slidably arranged in the second fixed shell (901); a spring is fixedly connected between the sliding plates (904) and the adjacent sliding columns (903); the first sliding frame (708) and the second sliding frame (801) are both provided with blind holes; the blind holes of the first sliding frame (708) and the blind holes of the second sliding frame (801) are respectively limitedly matched with the adjacent sliding columns (903).

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