CN111336906B - A device for measuring deformation in a power pipeline - Google Patents

Abstract

The invention discloses a device for measuring deformation in an electric power pipeline, which comprises a correction barrel and a fixed column arranged in the correction barrel, wherein the side wall of the fixed column is provided with a plurality of pairs of measuring barrels connected with the inner wall of the correction barrel, one end of each measuring barrel is provided with a transmitter connected with the inner wall of the correction barrel, the other end of each measuring barrel is provided with an adjusting and measuring block which is connected with the fixed column in a sliding mode and has a right-angled trapezoid structure in cross section, and the side wall of the fixed column is provided with a clamping and sliding groove for limiting the adjusting and measuring block. According to the invention, the foreign matter on the inner wall of the pipeline is scraped and the position of the correction cylinder is corrected through the scraping belt, so that the detected data can not be easily influenced, and meanwhile, the situation that the correction cylinder is clamped in the power pipe can not occur.

Description

A device for measuring deformation in a power pipeline

technical field

The invention relates to the technical field of electric power pipes, in particular to a deformation measuring device in an electric power pipe.

Background technique

The power pipe is a product made of PE (modified polyethylene) for hot dip molding or epoxy resin for internal and external coating, and has excellent corrosion resistance. At the same time, the coating itself also has good electrical insulation and will not cause galvanic corrosion. It has low water absorption, high mechanical strength and small friction coefficient, which can achieve the purpose of long-term use, and can effectively prevent the damage of plant roots and soil environmental stress.

Due to the vibration of the current power pipeline during transportation, its surface is easily impacted and the inner wall is bent and deformed, which will reduce the bearing strength of the pipeline. If the pipeline is buried underground, its surface will be covered with a lot of dust and rocks , once it is eroded by rain for a long time, it will break the pipeline.

Therefore, in order to keep the bearing strength of the pipeline unaffected, it is often necessary to measure the deformation of the inner wall of the pipeline, but the current measuring device cannot exclude the influence of foreign matter during detection. Foreign matter, once the measuring device passes through, the foreign matter will easily press down the detection head of the device, which will affect the measurement results. At the same time, if the operation is improper, when the measuring device passes through, the foreign matter will jam the device, which will cause the device to be driven and tilted. phenomenon, causing the device to get stuck in the pipe.

SUMMARY OF THE INVENTION

To this end, the present invention provides a deformation measuring device in a power pipeline to solve the problem that in the prior art, foreign objects are very easy to press down the detection head of the device, which affects the measurement results. If the device is stuck, there will be a phenomenon that the device is driven to be tilted, so that the device is stuck in the pipe.

In order to achieve the above object, the present invention provides the following technical solutions:

A deformation measurement device in a power pipeline, comprising a correction cylinder and a fixed column arranged in the correction cylinder, the side wall of the fixed column is provided with several pairs of measurement cylinders connected with the inner wall of the correction cylinder, and one end of the measurement cylinder is installed with a The transmitter is connected to the inner wall of the straightening cylinder. The other end of the measuring cylinder is installed with a test block that is slidably connected to the fixed column and has a right-angled trapezoidal structure. A carding chute, a correction mechanism corresponding to the measuring cylinder and used for removing objects and correcting the position is connected to the side wall of the correction cylinder;

The correction mechanism includes two supporting elastic columns symmetrically connected to the side wall of the correction cylinder, a scraping belt in an isosceles trapezoid structure is connected between the two supporting elastic columns, and a scraping belt is provided at the center of the surface of the scraping belt. A stepped slot hole, a clamping block with an I-shaped structure is connected in the stepped slot hole, and the surface of the clamping block is installed with a downward pressure adjustment column that penetrates into the correction cylinder and is connected to the inclined surface of the adjustment block. The outer surface of the scraping belt is provided with a plurality of scraping chute symmetrical about the stepped slot hole, a scraping strip is installed in the scraping chute, and a plurality of inclined hollow columns are installed on the scraping strip.

As a preferred solution of the present invention, the number of the scraping belts is equal to the number of the measuring cylinders, a plurality of the measuring cylinders are symmetrically connected to the side wall of the fixed column in pairs, and a plurality of the measuring cylinders are combined form a ring structure.

As a preferred solution of the present invention, the supporting elastic column includes a support block connected to the scraping belt, the support block is provided with an adjustment groove with a U-shaped structure in cross section, and the support block is away from one end side of the straightening cylinder. The wall is provided with an applicator connected to the inner surface of the scraper.

As a preferred solution of the present invention, the applicator includes a socket column connected to the support block and having an L-shaped structure, and one end of the socket column away from the support block is connected with a clamping piece, the clamping piece A rotating adjustment block connected to the lower pressure adjustment column is installed at one end, and a clamping slot is provided at the other end of the clamping piece. A deflection block is sleeved on the outer side of the deflection column.

As a preferred solution of the present invention, the length values of a plurality of the measuring cylinders are arranged in a linear decreasing trend from the end close to the transmitter to the end far from the transmitter, and a movable groove is opened in the measuring cylinder. The inner wall of the movable groove is provided with a tension detector connected with the transmitter, the tension detector is installed with a tension spring on the side away from the transmitter, and the length detector is connected with the side of the tension spring away from the tension detector, so The side wall of the length detector is provided with a pull column connected with the adjustment block.

As a preferred solution of the present invention, several guide blocks for re-reduction and correction are installed on the side wall of the correction cylinder, and the guide blocks include a U-shaped structure in cross section and connected to the side wall of the correction cylinder. The straightening shrapnel is provided with an oblique connecting piece at one end of the straightening shrapnel away from the straightening cylinder, and a sliding shrapnel with a cross-section of a zigzag structure is installed on the end of the oblique connecting piece away from the straightening elastic piece.

As a preferred solution of the present invention, a clamping block with an I-shaped cross-section is connected through the surface of the sliding elastic sheet, and a supporting block is installed on the side surface of the clamping block away from the sliding elastic sheet.

As a preferred solution of the present invention, a resilient block is installed on the support block, and the resilient block is composed of two half-side resilient blocks with a U-shaped cross section.

As a preferred solution of the present invention, a return spring seat is sleeved on the side wall of the socket column, and a push seat piece is connected to one end face of the return spring seat close to the support block, and the push seat piece penetrates through It is arranged on the side wall of the socket column, and the side wall of the push seat piece is rotatably connected with a pulling column connected with the surface of the clamping piece.

The present invention has the following advantages:

The invention realizes the scraping of foreign objects on the inner wall of the pipeline and the position correction of the correction cylinder through the scraping belt, so that the detected data will not be easily affected, and at the same time, the situation that the correction cylinder is stuck in the power pipe will not occur; its specific implementation When the straightening cylinder passes through the deformation of the inner wall of the pipe, the scraping belt will scrape off the foreign matter at the deformation place first, and the scraping belt with a longer distance means that the carrying distance is larger, and the straightening cylinder will not easily tilt and be stuck by the pipe. In addition, the present invention can further correct the position of the rectification cylinder through the guide block, so that the rectification cylinder can be automatically restored to the initial state after the dislocation occurs, so that the user does not need to spend time for maintenance.

Description of drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that are required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, other implementation drawings can also be obtained according to the extension of the drawings provided without creative efforts.

The structures, proportions, sizes, etc. shown in this specification are only used to cooperate with the contents disclosed in the specification, so as to be understood and read by those who are familiar with the technology, and are not used to limit the conditions for the implementation of the present invention, so there is no technical The substantive meaning above, any modification of the structure, the change of the proportional relationship or the adjustment of the size should still fall within the technical content disclosed in the present invention without affecting the effect and the purpose that the present invention can produce. within the range that can be covered.

1 is a schematic diagram of the overall structure of an embodiment of the present invention;

2 is a left partial cross-sectional view of a correcting barrel according to an embodiment of the present invention;

3 is a schematic structural diagram of a clamping sheet according to an embodiment of the present invention;

4 is a schematic structural diagram of a fixed column according to an embodiment of the present invention;

5 is a schematic structural diagram of a scraper bar according to an embodiment of the present invention;

Fig. 6 is the right side view of the correction cylinder of the embodiment of the present invention;

Fig. 7 is the side view of the scraping belt of the embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a measuring cylinder according to an embodiment of the present invention.

In the picture:

1-correction cylinder; 2-fixed column; 3-measurement cylinder; 4-transmitter; 5-adjustment block; 6-correction mechanism; 7-support spring column; 8-applicator; 9-return block; 201-card chute;

301-active groove; 302-tension detector; 303-tension spring; 304-length detector; 305-tension column;

601-scraping belt; 602-step slot hole; 603-clamping block; 604-lower pressure adjusting column; 605-scraping chute; 606-scraping strip; 607-inclined hollow column;

701-support block; 702-adjustment groove;

801-sleeve column; 802-clamping piece; 803-rotation adjustment block; 804-position slot; 805-deflection column; 806-deflection block; 807-return spring seat; 808-push seat piece; 809-pull column;

901-correcting shrapnel; 902-oblique connecting piece; 903-sliding shrapnel; 904-loading block; 905-supporting block; 906-rebound block; 907-half return block.

Detailed ways

The embodiments of the present invention are described below by specific specific embodiments. Those who are familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the present invention. , not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in FIG. 1 , the present invention provides a deformation measurement device in a power pipeline, which can scrape foreign objects on the inner wall of the pipeline and correct the position of the correction cylinder 1 through the scraping belt 601, so that the detected data will not be It is easily affected, and at the same time, the situation that the correction cylinder 1 is stuck in the power pipe will not occur; and the return block 9 can be used to further correct the position of the correction cylinder 1, so that after the correction cylinder 1 is dislocated, it can be automatically restored. to the initial state.

The device includes a correction cylinder 1 and a fixing column 2 arranged in the correction cylinder 1. The side wall of the fixing column 2 is provided with several pairs of measuring cylinders 3 connected to the inner wall of the correction cylinder 1. One end of the measuring cylinder 3 is installed with a The transmitter 4 connected to the inner wall of the correction cylinder 1 (the transmitter 4 can automatically transmit data to the outside world, and there are many transmission methods, which can be conducted directly through a long line or through a wireless local area network or Bluetooth (and other wireless transmitters). ) to achieve), the other end of the measuring cylinder 3 is installed with a test block 5 that is slidably connected to the fixed column 2 and has a right-angled trapezoid cross-section. The side wall of the fixed column 2 is provided with a limit for the test block 5 The card chute 201 is connected to the side wall of the correction cylinder 1 with a correction mechanism 6 corresponding to the measuring cylinder 3 and used for removing objects and correcting the position.

The device can convert the deformation of the inner wall of the detection pipe into the movement distance of the adjustment block 5, and can also determine the deformation length through the detection time of the tensile force (the deformation length is equal to the movement length of the correction cylinder within the detection time of the tensile force).

When the device is in use, the straightening cylinder 1 can be directly inserted into the pipeline, and the straightening cylinder 1 can be pushed into the pipeline at a constant speed by means of a robot or other device. The foreign matter is scraped off without any influence on the detection data, and the correction mechanism 6 can also achieve the purpose of position correction, so that the correction cylinder 1 will not be offset and inclined when it passes through the deformation.

As shown in FIGS. 1 , 2 , 5 and 7 , the correction mechanism 6 includes two support elastic columns 7 symmetrically connected to the side wall of the correction cylinder 1 , and between the two support elastic columns 7 are connected The scraper belt 601 has an isosceles trapezoid structure. A stepped slot hole 602 is opened at the center of the surface of the scraper belt 601. The stepped slot hole 602 is connected with a clamp block 603 in an I-shaped structure. The clamp block 603 A downward pressure adjusting column 604 which penetrates into the straightening cylinder 1 and is connected with the inclined surface of the adjusting block 5 is installed on the surface of the strip 601 . The outer surface of the scraping belt 601 is provided with a number of scraping oblique grooves 605 symmetrical about the stepped groove hole 602 , a scraping strip 606 is installed in the scraping chute 605 , and a plurality of inclined hollow columns 607 are installed on the scraping strip 606 .

The rectification mechanism 6 realizes the scraping of foreign objects on the inner wall of the pipeline and the position correction of the rectification cylinder 1. During the specific implementation, the user can continue to push the rectification cylinder 1 to move along the inner wall of the pipeline, and the movable rectification cylinder 1 will carry a scraper. The belt 601 moves along the inner wall of the pipe (when the scraping belt 601 is moving, it can be driven by the inner wall of the pipe to rotate, which can be understood with reference to Figure 1). It will be bent by the deformation, and at the same time, scraping the inclined hollow column 607 in the chute 605 can scrape the foreign matter at the deformation, so that the downward pressure of the downward pressure regulating column 604 is not affected by foreign matter, and when the scraping belt 601 moves When the clamping block 603 comes into contact with the deformed place (that is, the impurity removal is performed on a device before detection), the clamping block 603 will be gradually pressed down toward the straightening cylinder 1 .

When the clamping block 603 moves, the lower pressure adjustment column 604 will move together, and then the movable downward pressure adjustment column 604 will slide along the inclined surface of the adjustment block 5, so that the adjustment block 5 is pushed to slide along the clamping block The groove 201 moves in the direction away from the measuring cylinder 3. When the clamping block 603 touches the lowest point of the deformation, the descending amount of the downward pressure adjusting column 604 is the largest, and the moving amount of the adjusting block 5 is also the largest. The data detected in the cylinder 3 is the length data of the deformation, and then it can be transmitted to an external receiving station (such as a computer) through the transmitter 4 for display.

The number of the scraping strips 601 is equal to the number of the measuring cylinders 3 , and a plurality of the measuring cylinders 3 are symmetrically connected to the side wall of the fixed column 2 respectively, and a plurality of the measuring cylinders 3 are combined to form an annular structure. .

This setting is to make the scraping belt 601 connected to the side wall of the fixing column 2 in an annular structure like the measuring cylinder 3. When it is specifically set, several scraping belts 601 should be distributed on the side wall of the correction cylinder 1 in a double helix structure. This setting can further ensure the stability of the straightening cylinder 1 and the accuracy of the measurement of the scraping belt 601. Even if one scraping belt 601 is inclined, the scraping belts 601 in other parts will not be affected, so that the appearance of the straightening cylinder 1 can be avoided. In the case of inaccurate card position and data measurement, and because the length of the correction cylinder 1 is long, it means that it has a larger bearing area on the inner wall of the pipeline, and the phenomenon of bending, slipping or tilting will not easily occur, so that the correction can be further increased. The probability that the cylinder 1 will not be tilted, and the scraping strips 601 arranged separately are also divided into different time periods during measurement, and the inner wall of the pipeline at different positions is detected to ensure that the data transmission will not be affected.

As shown in FIG. 1 , the support spring 7 includes a support block 701 connected with the scraping belt 601 , the support block 701 is provided with an adjustment groove 702 with a U-shaped cross-section, and the support block 701 is far away from the straightening cylinder One end side wall of 1 is provided with an applicator 8 connected to the inner surface of the scraping tape 601 .

When the scraping belt 601 just touches the deformation of the inner wall of the pipe, the scraping belt 601 will be bent, and at the same time, the support block 701 will be pulled by the rotating shaft of the scraping belt 601 to be pressed down, and the depressed support block 701 will be bent and adjusted The groove 702 allows the scraping strip 601 to bend normally so as to pass through the deformation of the inner wall of the pipe.

As shown in FIG. 3 , when the scraping belt 601 moves with the clamping block 603 to the position where the pipe is deformed, because the applicator 8 includes the socket post 801 connected with the support block 701 and having an L-shaped structure, the socket One end of the column 801 away from the support block 701 is connected with a clamping piece 802, one end of the clamping piece 802 is installed with a rotating adjustment block 803 connected with the lower pressure adjustment column 604, and the other end of the clamping piece 802 is provided with a clamp Position slot 804, a deflection column 805 whose side wall is sleeved with a torsion spring is connected in the locking slot 804, and a deflection block 806 is sleeved on the outer side of the deflection column 805, so the clamping block 603 will push down the adjustment column with 604 moves toward the correction cylinder 1, and the movable downward adjustment column 604 will deflect toward the clamping block 603 together with the rotating adjustment block 803, and then the deflected rotating adjustment block 803 will move together with the clamping piece 802. The clamping piece 802 can push the scraping belt 601 to clamp the deformation, so that the scraping effect of the scraping belt 601 is better.

And when the clamping piece 802 is clamped, it can move together with the deflection block 806 and stick to the scraper belt 601. At this time, the torsion spring will play a role to press the deflection block 806 on the scraper belt 601 all the time, even if the correction cylinder 1 Continue to move, so that the shape of the scraper belt 601 at the deflection block 806 changes, and the deflection block 806 pressing the scraper belt 601 will always stick to the scraper belt 601 (because of the existence of the torsion spring, there is a certain amount of movement, and the torsion spring exists in the The torsion spring can only push the deflection block 806 to be close to the scraping belt 601, and other conditions cannot occur) (the number of the deflection blocks 806 is set several, and its size is small (the specific size is according to the The size of the clamping piece 802 can be the same or different from the deflection block 806, but the shape of the two is the same), so as to meet the purpose of moving the scraping belt 601 along the trajectory of the pipe deformation), that is, by moving The scraping belt 601 will scrape off the dust at the deformation of the pipeline (because the clamping block 603 is stuck in the stepped slot 602, it can pull the scraping belt 601, so the scraping belt 601 can be fully attached to the deformation place without clamping The phenomenon that the blade 802 slips with the scraping belt 601).

When the scraper belt 601 is driven by the deflection block 806 and the clamping piece 802 , the support block 701 is deflected by the rotating shaft, so that the entire scraper belt 601 is always in a tight state.

As shown in FIG. 1 , a return spring seat 807 is sleeved on the side wall of the socket post 801 , and a push seat piece 808 is connected to the end face of the return spring seat 807 close to the support block 701 . The sheet 808 is arranged through the side wall of the socket post 801 , and the side wall of the push seat sheet 808 is rotatably connected with a pulling post 809 connected to the surface of the clamping sheet 802 .

When the clamping piece 802 is deflected in the direction of the clamping block 603, it will drive the pulling column 809 to move together, and then the movable pulling column 809 will push the return spring seat 807 (optional spring), and squeeze the return spring seat 807, so that The movement of the clamping piece 802 is not affected, and at the same time, when the scraping strip 601 passes through the deformation of the pipeline, the return spring seat 807 can be reset, thereby indirectly pushing the scraping strip 601 to reset.

As shown in FIG. 1 , FIG. 4 and FIG. 7 , the length values of a plurality of the measuring cylinders 3 are set in a linear decreasing trend from the end close to the transmitter 4 to the end far from the transmitter 4 , so that several measuring cylinders 3 are arranged in this way. It is to match the scraping tape 601 in different positions.

As shown in FIG. 1 and FIG. 8 , a movable groove 301 is opened in the measuring cylinder 3 , and the inner wall of the movable groove 301 is provided with a tensile force detector 302 connected to the transmitter 4 , and the tensile force detector 302 is far away from A tension spring 303 is installed on one side of the transmitter 4, and a length detector 304 is connected to the side of the tension spring 303 away from the tension detector 302 (the length detector 304 can be selected as an infrared distance measuring sensor, which is installed on the fixed column 2 A corresponding device is set up to cooperate with the infrared distance measuring sensor for moving distance detection).

The structure in the measuring cylinder 3 detects the deformation thickness of the deformation by detecting the movement of the adjusting block 5. When the adjusting block 5 moves, the length detector 304 and the tension spring 303 are pulled by the pull column 305, so that the The tension spring 303 is gradually stretched, and at the same time, the length detector 304 also starts to move gradually. When the tension spring 303 is not extended, the distance detected by the length detector 304 is the deformation amount of the inner wall of the pipe.

At the same time, in the process of being stretched, the tension spring 303 will exert a force on the tension detector 302, so that the tension detector 302 starts to detect the force. When the tension detector 302 detects that the force does not change, it means that the detected position has been reached. The maximum deformation position (recording time is required during the detection process), after that, once the tension spring 303 is reset, it means that it begins to pass through the deformation point. When the force of the tension detector 302 begins to decrease until it returns to the initial position, it means that it has passed the At the deformation point, the time is recorded at this time, and the time recorded before is added, and the deformation length can be known by watching the moving distance of the correction cylinder 1 during this period.

As shown in FIG. 1 and FIG. 6 , several guide blocks 9 are installed on the side wall of the correction cylinder 1 for re-reduction and correction. The guide blocks 9 include a U-shaped structure in cross section and are connected with the correction cylinder 1 A correction elastic piece 901 connected to the side wall, one end of the correction elastic piece 901 away from the correction cylinder 1 is installed with an oblique connecting piece 902, and one end of the inclined connecting piece 902 away from the correction elastic piece 901 is installed with a cross-section. .

When the correction cylinder 1 passes through the deformation area, further position correction can be carried out through the guide block 9, so that after the correction cylinder 1 is dislocated, it can automatically return to the initial state. (here, the straightening cylinder 1 is lifted upward as an example) At this time, the end of the straightening cylinder 1 will squeeze the sliding elastic sheet 903 directly below it (the sliding elastic sheet 903 at each position is against the inner wall of the pipe). When the sliding elastic piece 903 is pressed, it pushes the oblique connecting piece 902 to squeeze the straightening elastic piece 901. After that, the straightening cylinder 1 is continuously pushed so that the straightening elastic piece 901 is reset, so that the straightening cylinder 1 is always in the position of the axis of the pipeline.

The surface of the sliding elastic sheet 903 is connected with a clamping block 904 with an I-shaped structure in cross section. A support block 905 is installed on the side surface of the clamping block 904 away from the sliding elastic sheet 903, and the supporting block 905 is installed on the surface. There is a spring-back block 906, and the spring-back block 906 is composed of two half-side return blocks 907 with a U-shaped structure in cross section.

When the sliding elastic piece 903 moves, the clamping block 904 can be supported by the support block 905, so that the compression amount of the correction elastic piece 901 is not too large, and when the sliding elastic piece 903 passes through the deformation, the compressed support block 905 will Push the half return block 907 to compress (to facilitate subsequent reset operations), so that the entire guide block 9 has a longer service life.

Although the present invention has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the present invention, which will be obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention fall within the scope of the claimed protection of the present invention.

Claims (9)

1. A deformation measuring device in a power pipeline, characterized in that it comprises a straightening cylinder (1) and a fixing column (2) arranged in the straightening cylinder (1), and the side wall of the fixing column (2) is provided with several For the measuring cylinder (3) connected to the inner wall of the rectifying cylinder (1), a transmitter (4) connected to the inner wall of the rectifying cylinder (1) is installed at one end of the measuring cylinder (3). The other end is installed with an adjustment block (5) which is slidably connected with the fixed column (2) and has a right-angled trapezoidal structure in cross section; the side wall of the fixed column (2) is provided with a limit for the adjustment block (5). The card chute (201), a correction mechanism (6) corresponding to the measuring cylinder (3) and used for removing objects and correcting the position is connected to the side wall of the correction cylinder (1); The correction mechanism (6) includes two supporting elastic columns (7) symmetrically connected to the side wall of the correction cylinder (1), and a scraper having an isosceles trapezoid structure is connected between the two supporting elastic columns (7). Belt (601), a stepped slot hole (602) is opened at the center position of the surface of the scraping belt (601), and a clamping block (603) having an I-shaped structure is connected in the stepped slot hole (602), so The surface of the clamping block (603) is provided with a downward pressure adjusting column (604) that penetrates into the straightening cylinder (1) and is connected to the inclined surface of the adjusting block (5); the scraping belt (601) There are several scraping chutes (605) symmetrical about the stepped slot hole (602) on the outer surface of the s 606) are installed with several inclined hollow columns (607). 2 . The device for measuring deformation in a power pipeline according to claim 1 , wherein the number of the scraping belts ( 601 ) is equal to the number of the measuring cylinders ( 3 ), and a plurality of the measuring cylinders ( 3) They are symmetrically connected to the side walls of the fixing columns (2) in pairs, and a plurality of the measuring cylinders (3) are combined to form an annular structure. 3 . The device for measuring deformation in a power pipeline according to claim 1 , wherein the supporting elastic column ( 7 ) comprises a support block ( 701 ) connected with the scraping belt ( 601 ), and the support block ( 701 ) is provided with an adjustment groove ( 702 ) with a U-shaped cross-section, and the side wall of one end of the support block ( 701 ) away from the straightening cylinder ( 1 ) is provided with an applicator connected to the inner surface of the scraping belt ( 601 ) (8). 4 . The device for measuring deformation in a power pipeline according to claim 3 , wherein the applicator ( 8 ) comprises a socket column ( 801), one end of the socket column (801) away from the support block (701) is connected with a clamping piece (802), and one end of the clamping piece (802) is installed with the lower pressure adjusting column ( 604) The connected rotating adjustment block (803), the other end of the clamping piece (802) is provided with a locking groove (804), and the deflection of the sidewall sleeve torsion spring is connected in the locking groove (804) A column (805), a deflection block (806) is sleeved on the outer side of the deflection column (805). 5. A device for measuring deformation in a power pipeline according to claim 1, characterized in that the length values of several of the measuring cylinders (3) are from an end close to the transmitter (4) to a distance away from the transmitter (4). One end of the measuring cylinder (3) is provided with a movable groove (301), and the inner wall of the movable groove (301) is provided with a tension detector (302) connected to the transmitter (4). , a tension spring (303) is installed on the side of the tension detector (302) away from the transmitter (4), and a length detector ( 304), the side wall of the length detector (304) is installed with a pull column (305) connected with the adjustment block (5). 6. A device for measuring deformation in a power pipeline according to claim 1, characterized in that, several guide blocks (9) for re-resetting and rectifying are installed on the side wall of the straightening cylinder (1), so that The guide block (9) comprises a rectifying elastic piece (901) having a U-shaped cross-section and connected to the side wall of the rectifying cylinder (1), the rectifying elastic piece (901) being away from one end of the rectifying cylinder (1) An oblique connecting piece (902) is installed, and a sliding elastic piece (903) having a cross-section of a zigzag structure is installed at one end of the inclined connecting piece (902) away from the correcting elastic piece (901). 7 . The device for measuring deformation in a power pipeline according to claim 6 , wherein the surface of the sliding elastic sheet ( 903 ) is penetratingly connected with a clamping block ( 904 ) having an I-shaped structure in cross section, so the A support block (905) is installed on the side surface of the clamping block (904) away from the sliding elastic sheet (903). 8 . The device for measuring deformation in a power pipeline according to claim 7 , wherein a spring-back block ( 906 ) is installed on the support block ( 905 ), and the spring-back block ( 906 ) consists of two It is composed of a half-side block (907) with a U-shaped structure in cross section. 9 . The device for measuring internal deformation of a power pipeline according to claim 4 , wherein a return spring seat ( 807 ) is sleeved on the side wall of the socket column ( 801 ), and the return spring seat (807) A push-seat piece (808) is connected to the end face of one side close to the support block (701), and the push-seat piece (808) penetrates and is arranged on the side wall of the socket column (801). The push-seat piece (808) ) is rotatably connected with a pulling column (809) connected with the surface of the clamping piece (802).

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