CN111624323A

CN111624323A - Steel pipe nondestructive test fixing device

Info

Publication number: CN111624323A
Application number: CN202010665925.3A
Authority: CN
Inventors: 林亿彬
Original assignee: Yongqi Agricultural Technology Development Hangzhou Co ltd
Current assignee: Yongqi Agricultural Technology Development Hangzhou Co ltd
Priority date: 2020-07-12
Filing date: 2020-07-12
Publication date: 2020-09-04

Abstract

The invention relates to the field of steel pipe nondestructive testing devices, in particular to a steel pipe nondestructive testing fixing device which comprises a box body, a supporting structure, a clamping structure, a folding structure, a positioning structure, a limiting structure and a fixing structure, wherein the supporting structure is arranged on the box body; the utility model discloses a detector, including box, bearing structure, the bottom mounting support structure at the box, play the effect of supporting box when being used for carrying out nondestructive test, can make the box better laminate with the steel pipe surface, make things convenient for the removal of box and improve the detection precision, the clamping structure in the box bottom is installed in the cooperation, can conveniently install the change to detecting the head, beta structure's setting, the folding storage is carried out to the subassembly of placing the detector, can conveniently take the use, can also play the effect of support when using, and the setting of cooperation location structure, can mention the back with beta structure, the automatic condition that falls back of beta structure can not take place, guarantee to place the stability of detector, setting through limit structure, the subassembly of placing that can conveniently will place the detector supports and accomodates and deposit.

Description

Steel pipe nondestructive test fixing device

Technical Field

The invention relates to the field of steel pipe nondestructive testing devices, in particular to a fixing device for steel pipe nondestructive testing.

Background

Steel pipes are steel with a hollow cross section whose length is much greater than the diameter or circumference. The steel pipe is divided into round, square, rectangular and special-shaped steel pipes according to the shape of the cross section; the steel pipe is divided into a carbon structural steel pipe, a low-alloy structural steel pipe, an alloy steel pipe and a composite steel pipe according to the material quality; the steel pipes are divided into steel pipes for conveying pipelines, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, high-pressure equipment and the like according to the application; the production process includes seamless steel pipe and welded steel pipe, the seamless steel pipe includes hot rolling and cold rolling (drawing), and the welded steel pipe includes straight seam welded steel pipe and spiral seam welded steel pipe. Steel pipes are not only used for transporting fluids and powdery solids, exchanging heat energy, manufacturing mechanical parts and containers, but also are economical steels. The steel pipe is used for manufacturing the building structure net rack, the supporting column and the mechanical support, so that the weight can be reduced, the metal can be saved by 20-40%, and the industrialized mechanized construction can be realized. The steel pipe is used for manufacturing the highway bridge, so that steel can be saved, the construction is simplified, the area of a coating protective layer can be greatly reduced, and the investment and the maintenance cost are saved.

Some are used for outdoor conveying gas and fluidic steel pipe, in order to guarantee the service quality of steel pipe, generally all can be regular to the nondestructive test of carrying on of steel pipe, carry out nondestructive test to outdoor steel pipe at present, all be that the detector is held to the other hand of detection head of examining of holding always, when using, need the detector to be close to the steel pipe surface with the detection head and carry out the detection of making a round trip, because must both hands operate during the use, waste time and energy, and because the manual work is held the detection head and is caused the uneven effect of detection head detection easily.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a fixing device for nondestructive testing of a steel pipe.

The technical scheme adopted by the invention for solving the technical problems is as follows: a steel pipe nondestructive testing fixing device comprises a box body, a supporting structure, a clamping structure, a folding structure, a positioning structure, a limiting structure and a fixing structure, wherein the supporting structure used for supporting the box body and the outer surface of a steel pipe is installed at the bottom end of the box body which plays a role in containing and supporting, and the clamping structure used for clamping a testing head is installed at the center of the box body; the folding structure used for folding and containing components for placing instruments is arranged at one end of the box body, and the positioning structure used for limiting and fixing the folding structure is arranged in the box body; the detector is characterized in that one end of the folding structure is provided with a limiting structure for limiting and fixing a component for supporting the detector to be placed, and the limiting structure is internally provided with a fixing structure for clamping and fixing the detector.

Specifically, the supporting structure comprises supporting sleeves, supporting rods, rotating balls, screw rods, supporting shafts, first springs, gears, racks and limiting rings, wherein the bottom end of the box body is rotatably connected with two rows of supporting sleeves through the supporting shafts, the two rows of supporting sleeves are symmetrically distributed around the center line of the box body, the supporting rods are slidably connected inside the two rows of supporting sleeves, one ends of the supporting rods, which are far away from the supporting sleeves, are rotatably connected with the rotating balls, the first springs are clamped and fixed between the supporting rods and the supporting sleeves, the racks are slidably connected inside the box body, the gears are fixed outside each supporting shaft, the gears are rotated with the box body, the gears are meshed with the racks, one ends of the box body are rotatably connected with the screw rods, and the limiting rings are fixed outside the screw rods, and the limit ring and the box body rotate, and the screw rod is in threaded connection with the rack.

Specifically, the clamping structure comprises a rotating groove, a first clamping plate, a second clamping plate, a rubber pad, a touch rod, a rotating rod, a second spring, a guide rod and a third spring, the rotating groove is arranged at the center of the box body, the first clamping plate is arranged in the rotating groove, the rotating rod with a T-shaped structure is vertically fixed at one end of the first clamping plate, the rotating rod is rotatably connected in the box body, the second spring is clamped and fixed between the rotating rod and the box body, the rotating rod and the box body are respectively fixed at two ends of the second spring, the second clamping plate is arranged at one end of the first clamping plate, the two guide rods are fixed at one end of the first clamping plate close to the second clamping plate in a symmetrical relation, the two guide rods are both slidably connected in the second clamping plate, and the third spring is clamped and fixed between the two guide rods and the second clamping plate, one end of the first clamping plate is fixed with the touch rod in an inclined mode, and one ends, close to the second clamping plate, of the first clamping plate are glued with the rubber pads.

Specifically, beta structure includes first spout, first slider, folding rod, backup pad, second spout and second slider the inside of box is symmetrical relation and is equipped with two and is L shape structure first spout, two the equal sliding connection in inside of first spout has two first slider, two the one end of first slider all rotates and is connected with the folding rod, and two the folding rod rotates and connects, two the other end of folding rod all rotates and is connected with the second slider, two the outside sliding connection of second slider has the backup pad the inside symmetrical relation that is of bottom of backup pad is equipped with two the second spout.

Specifically, the positioning structure comprises a fixed block, a pull ring, first fixed teeth, second fixed teeth, an installation block and a fourth spring, the fixed block is connected inside the first sliding block in a sliding mode, the pull ring is fixed to one end of the fixed block, the installation block is fixed to one end of the fixed block in a vertical relation, the installation block is connected with the box body in a sliding mode, the fourth spring is clamped and fixed between the installation block and the box body, the first fixed teeth with the triangular cross sections are fixed to the inner side wall of the box body in a linear relation, and the second fixed teeth with the triangular cross sections are fixed to one end, close to the first fixed teeth, of the fixed block.

Specifically, limit structure includes mounting panel, pivot, spacing groove, stopper, fixed cover, inserted bar, fifth spring, jack and button, the mounting panel passes through the pivot rotate connect in the backup pad the inside of backup pad is equipped with and is fan-shaped structure the spacing groove the external fixation of pivot is fan-shaped structure the stopper, just the stopper passes through the spacing groove with the backup pad rotates the outside of pivot is still fixed cover the inside sliding connection of fixed cover has the inserted bar with the centre gripping is fixed between the fixed cover the fifth spring the inside of backup pad is equipped with the jack the inside sliding connection of jack has and is T shape structure the button.

Specifically, the fixing structure comprises a pulling block, a placing plate, an extending plate, a hinge, moving blocks, a fixing plate, a sixth spring, pulleys and pull ropes, wherein the pulling block is connected inside the mounting plate in a sliding manner, the placing plate is fixedly mounted at one end of the pulling block, the extending plate is connected to one end of the placing plate through the hinge in a rotating manner, the two moving blocks which are in a symmetrical relationship are connected inside the mounting plate in a sliding manner, the sixth spring is clamped and fixed between the two moving blocks and the mounting plate, the fixing plate is fixedly mounted at one end of each of the two moving blocks, the two moving blocks and the pulling block are connected through the two pull ropes, the two pulleys are rotatably connected inside the mounting plate, and the two pull ropes respectively slide on the two pulleys.

The invention has the beneficial effects that:

(1) the steel pipe nondestructive testing fixing device has the advantages that the bottom end of the box body is provided with the supporting structure, the box body can be supported when the nondestructive testing fixing device is used for nondestructive testing, the box body can be better attached to the surface of a steel pipe, the box body can be moved conveniently, the testing precision is improved, the clamping structure arranged at the bottom end of the box body is matched, the testing head can be conveniently mounted and replaced, the storage is convenient, and the space is reduced, namely when the device is used, a screw rod is required to be rotated, the screw rod is in threaded connection with a rack, the rack is in sliding connection with the inside of the box body, therefore, when the screw rod is rotated, the rack can slide in the inside of the box body, and as the rack is meshed with a gear fixed on the outer portion of a supporting shaft, the supporting sleeve can be rotated out of the inner bottom end of the, the support sleeve is convenient to store, the space is convenient to reduce, the carrying is convenient, the protection effect can be achieved, after the support sleeve is rotated out, the box body can be placed on the outer surface of the steel pipe, the support rods are connected inside the support sleeves in a sliding mode, the rotating ball is connected to one end of each support rod in a rotating mode, the box body can be moved conveniently through the arrangement of the rotating ball, the box body can be better attached to the surface of the steel pipe in a matching mode under the elastic action of the first spring, the detection and the movement are convenient and better, when the detection head needs to be clamped and fixed, the second clamping plate only needs to be pulled open, the detection head is placed into the groove between the two clamping plates, the two guide rods are fixed at one end of the first clamping plate in a symmetrical relation, the two guide rods are connected to the inside of the second clamping plate in a sliding mode, the guide effect can be achieved through the arrangement of the two guide rods, prevent that the condition of skew from appearing in two splint when fixed detection head, and through all installing the third spring between two guide bars and second splint, just can realize the automatic centre gripping to detecting the head, reach the purpose of easy to assemble and dismantlement detection head, and because first splint pass through bull stick and box rotation, and the fixed second spring of centre gripping between bull stick and box, through the spring action of second spring, can make first splint remain throughout with the box vertically state, thereby can guarantee to be personally submitted the vertical relation by the detection head of centre gripping and steel pipe surface, thereby the convenience detects the steel pipe, because the fixed feeler lever that is the slope column structure in the one end of first splint, through the effect of feeler lever, can be when accomodating the backup pad, the backup pad can extrude the feeler lever and accomodate splint rotation, the splint of being convenient for are accomodate and are preserved.

(2) The fixing device for nondestructive testing of the steel pipe can fold and store the component for placing the detector through the arrangement of the folding structure, thereby being convenient to take and use, playing a supporting role during use, and being matched with the arrangement of the positioning structure, the folding structure can not automatically fall back after being lifted, the stability of placing the detector is ensured, namely when the placing instrument needs to be placed, only the support plate needs to be lifted from the interior of the box body, because the support plate is supported through the two cross-shaped folding rods, and the two folding rods respectively slide with the box body and the support plate through the two first sliding blocks and the two second sliding blocks, the lifting and the storage of the support plate can be realized, thereby being convenient to store and store the support plate when not in use, and being also being convenient to install the detection head, after mentioning the backup pad to take the altitude promptly, because there is the fixed block at the inside sliding connection of first slider, and be the second fixed tooth of right angled triangle structure at the one end fixed cross-section of fixed block, the cooperation is at the inside fixed a plurality of first fixed teeth of linear relation that are of box, and the opposite direction of two fixed teeth, the spring action of deuterogamy fourth spring, can guarantee under natural state, first slider only can be close to each other, can not retreat, just can guarantee to mention the backup pad the back, the automatic circumstances of whereabouts can not take place for the backup pad, thereby guarantee the normal use of placing of detector.

(3) The nondestructive testing fixing device for the steel pipe can conveniently support, store and store a placing component for placing a detector through the arrangement of the limiting structure, thereby not only ensuring the stability when the detector is fixed, but also ensuring that the placing component is completely stored and is convenient to carry when the nondestructive testing fixing device is not used, and the device can stably fix the detector by utilizing the self gravity of the detector through the arrangement of the fixing structure, thereby being convenient for installing and fixing the detector, namely, when the detector is required to be placed and fixed, the mounting plate needs to be rotated from the supporting plate, as the mounting plate rotates through the rotating shaft, the limiting block in a fan-shaped structure is fixed outside the rotating shaft, thereby ensuring that the rotating angle of the limiting block in the limiting groove is ninety degrees, thereby ensuring that the mounting plate and the supporting plate are in a vertical relation after the mounting plate is rotated, the detector is convenient to observe after the detector is placed, the fixing sleeve is fixed outside the rotating shaft, the inserting rod is connected in the fixing sleeve in a sliding mode, one end of the inserting rod is of a hemispherical structure, after the rotating shaft rotates to a certain position, the inserting rod can be inserted into the jack under the action of the elastic force of the fifth spring, the rotating shaft can be fixed, the situation of automatic rotation when the detector is fixed is prevented, when the detector needs to be stored, the inserting rod can withdraw from the jack only by pressing a button, the rotating shaft can be rotated to store the mounting plate, after the mounting plate is unfolded, the detector is placed on the placing plate, the extending plate is connected to one end of the placing plate in a rotating mode through a hinge, the placing area of the placing plate can be increased conveniently, the detector is placed more stably, and the placing plate is fixed with the pull block connected to the inside of the mounting plate in a sliding mode, and because two moving blocks for fixing the two fixed plates are fixed with the pulling block through the two pull ropes, when the detector is placed on the placing plate, the pulling block can automatically enable the two fixed plates to be close to the detector for clamping and fixing under the action of gravity of the detector, so that the detector can be installed and fixed conveniently and quickly.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a structural diagram illustrating the overall structure of a steel pipe nondestructive testing fixture according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the connection structure of the case and the support structure shown in FIG. 1;

FIG. 3 is a schematic structural view of the support structure shown in FIG. 1;

FIG. 4 is an enlarged view of portion A of FIG. 1;

FIG. 5 is a schematic view of a connection structure of the case and the clamping structure shown in FIG. 1;

FIG. 6 is a schematic view of the connection between the case and the folding structure shown in FIG. 1;

FIG. 7 is a schematic view of a connection structure of the case and the positioning structure shown in FIG. 1;

FIG. 8 is an enlarged view of the portion B shown in FIG. 7;

FIG. 9 is a schematic view of the connection structure of the supporting plate and the position limiting structure shown in FIG. 1;

FIG. 10 is a schematic structural view of the positioning structure shown in FIG. 1;

fig. 11 is a schematic structural view of the fixing structure shown in fig. 1.

In the figure: 1. the device comprises a box body, a support structure, a support sleeve, a support rod, a support ball, a rotating ball, a screw rod, a support shaft, a support structure, a support sleeve, a support rod, a support ring, a limiting ring, a rotating ball, a clamping structure, a rotating groove, a first clamping plate, a second clamping plate, a first clamping plate, a rubber pad, a contact rod, a rotating rod, a second clamping plate, a rotating rod, a 37, a second spring, a 38, a guide rod, a 39, a third spring, a folding structure, a 41, a first sliding groove, a first sliding block, a second sliding block, a positioning structure, a fixing block, a pull ring, a 53, a first fixing tooth, a second fixing tooth, a mounting block, a fourth spring, a limiting structure, a mounting plate, a limiting structure, a rotating shaft, a mounting plate, a limiting groove, a, A plunger 67, a fifth spring 68, a jack 69, a button 7, a fixing structure 71, a pulling block 72, a placing plate 73, an extending plate 74, a hinge 75, a moving block 76, a fixing plate 77, a sixth spring 78, a pulley 79 and a pulling rope.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-11, the nondestructive testing fixing device for steel pipes according to the present invention includes a box body 1, a supporting structure 2, a clamping structure 3, a folding structure 4, a positioning structure 5, a limiting structure 6 and a fixing structure 7, wherein the supporting structure 2 for supporting the box body 1 and the outer surface of the steel pipe is installed at the bottom end of the box body 1 for accommodating and supporting, and the clamping structure 3 for clamping a testing head is installed at the center of the box body 1; the folding structure 4 used for folding and containing components for placing instruments is arranged at one end of the box body 1, and the positioning structure 5 used for limiting and fixing the folding structure 4 is arranged in the box body 1; the limiting structure 6 used for limiting and fixing the components for supporting the detector to be placed is arranged at one end of the folding structure 4, and the fixing structure 7 used for clamping and fixing the detector is arranged in the limiting structure 6.

Specifically, the supporting structure 2 includes a supporting sleeve 21, a supporting rod 22, a rotating ball 23, a screw 24, a supporting shaft 25, a first spring 26, a gear 27, a rack 28 and a limiting ring 29, two rows of the supporting sleeves 21 are rotatably connected to the bottom end of the box 1 through the supporting shaft 25, the two rows of the supporting sleeves 21 are symmetrically distributed about the center line of the box 1, the supporting rod 22 is slidably connected to the inside of each row of the supporting sleeves 21, the rotating ball 23 is rotatably connected to one end of the supporting rod 22 away from the supporting sleeve 21, the first spring 26 is clamped and fixed between the supporting rod 22 and the supporting sleeve 21, the rack 28 is slidably connected to the inside of the box 1, the gear 27 is fixed to the outside of each supporting shaft 25, the gear 27 rotates with the box 1, the gear 27 is engaged with the rack 28, the screw 24 is rotatably connected to one end of the box body 1, the limiting ring 29 is fixed outside the screw 24, the limiting ring 29 and the box body 1 rotate, the screw 24 and the rack 28 are in threaded connection, when in use, the screw 24 needs to be rotated, because the screw 24 is in threaded connection with the rack 28 and the rack 28 is in sliding connection with the inside of the box body 1, when the screw 24 is rotated, the rack 28 can slide inside the box body 1, and because the rack 28 is meshed with the gear 27 fixed outside the supporting shaft 21, the supporting sleeve 21 can be rotated out from the bottom end inside the box body 1 by rotating the screw 24, so that the supporting sleeve 21 can be conveniently stored when not in use, the space can be conveniently reduced, the carrying is convenient, and the protection effect can be achieved, when the supporting sleeve 21 is rotated out, the box body 1 can be placed on the outer surface of the steel pipe, the supporting rod 22 is connected to the supporting sleeve 21 in a sliding mode, one end of the supporting rod 22 is connected with the rotating ball 23 in a rotating mode, the box body 1 can be moved conveniently through the rotating ball 23, the elastic effect of the first spring 26 is matched, the box body 1 can be better attached to the surface of the steel pipe, and the detection and the movement are better facilitated.

Concretely, clamping structure 3 includes that the turn trough 31, first splint 32, second splint 33, rubber pad 34, conflict pole 35, bull stick 36, second spring 37, guide bar 38 and third spring 39 the central point of box 1 puts and is equipped with the turn trough 31 the inside of turn trough 31 is equipped with first splint 32 the one end vertical fixation cross-section of first splint 32 is T shape structure the bull stick 36, just the bull stick 36 rotate connect in the inside of box 1 the bull stick 36 with the centre gripping is fixed between the box 1 second spring 37, just the both ends of second spring 37 are fixed respectively the bull stick 36 with box 1 the one end of first splint 32 is equipped with the second splint 33 the one end that first splint 32 is close to second splint 33 is two fixed guide bars 38 of symmetry relation, the two guide rods 38 are slidably connected inside the second clamping plate 33, the third spring 39 is clamped and fixed between the two guide rods 38 and the second clamping plate 33, the contact rod 35 is fixed at one end of the first clamping plate 32 in an inclined manner, the rubber pad 34 is glued at the end of the first clamping plate 32 close to the second clamping plate 33, when the detection head needs to be clamped and fixed, the second clamping plate 33 only needs to be pulled open, and then the detection head is placed inside a groove between the two clamping plates, because the two guide rods 38 are fixed at one end of the first clamping plate 32 in a symmetrical relationship and the two guide rods 38 are slidably connected inside the second clamping plate 33, the guide function can be played by the arrangement of the two guide rods 38, so that the situation that the two clamping plates are deviated when the detection head is fixed is prevented, and through installing the third spring 39 between the two guide rods 38 and the second clamp plate 33, the automatic clamping of the detection head can be realized, the purpose of conveniently installing and disassembling the detection head is achieved, and because the first clamp plate 32 rotates with the box body 1 through the rotating rod 36, and the second spring 37 is clamped and fixed between the rotating rod 36 and the box body 1, through the elastic action of the second spring 37, the first clamp plate 32 can always keep the state vertical to the box body 1, so that the clamped detection head can be ensured to be in the vertical relation with the surface of the steel pipe, thereby conveniently detecting the steel pipe, because the contact rod 35 with an inclined structure is fixed at one end of the first clamp plate 32, through the action of the contact rod 35, when the support plate 44 is stored, the support plate 44 can extrude the contact rod 35 to store the clamp plate in a rotating way, is convenient for the storage of the splint.

Specifically, the folding structure 4 includes a first sliding groove 41, a first sliding block 42, a folding rod 43, a supporting plate 44, a second sliding groove 45 and a second sliding block 46, two first sliding grooves 41 in an L-shaped structure are symmetrically arranged in the box body 1, two first sliding blocks 42 are slidably connected in the two first sliding grooves 41, one end of each of the two first sliding blocks 42 is rotatably connected with the folding rod 43, the two folding rods 43 are rotatably connected, the other end of each of the two folding rods 43 is rotatably connected with the second sliding block 46, the supporting plate 44 is slidably connected outside the two second sliding blocks 46, the two second sliding grooves 45 are symmetrically arranged in the bottom end of the supporting plate 44, when a placement instrument needs to be placed, the supporting plate 44 is only required to be lifted from the inside of the box body 1, because the supporting plate 44 is supported by two crossed folding rods 43, and the two folding rods 43 respectively slide with the box body 1 and the supporting plate 44 through two first sliders 42 and two second sliders 46, the lifting and the storage of the supporting plate 44 can be realized, so that the supporting plate can be conveniently stored and stored when not in use, and the installation of a detection head can be conveniently carried out.

Specifically, the positioning structure 5 includes a fixed block 51, a pull ring 52, a first fixed tooth 53, a second fixed tooth 54, a mounting block 55, and a fourth spring 56, the fixed block 51 is slidably connected to the inside of the first slider 42, the pull ring 52 is fixed to one end of the fixed block 51, the mounting block 55 is fixed to one end of the fixed block 51 in a vertical relationship, and the mounting block 55 is slidably connected to the case 1, the fourth spring 56 is fixedly clamped between the mounting block 55 and the case 1, the first fixed teeth 53 having a triangular cross-section are fixed to the inner sidewall of the case 1 in a linear relationship, the second fixed teeth 54 having a triangular cross-section are fixed to one end of the fixed block 51 adjacent to the first fixed teeth 53, and after the supporting plate 44 is lifted to a certain height, since the fixed block 51 is slidably connected to the inside of the first slider 42, the second fixed teeth 54 with a right-angled triangle structure fixed on the cross section are matched with the plurality of first fixed teeth 53 fixed in the case 1 in a linear relationship, and the directions of the two fixed teeth are opposite, and then the elastic action of the fourth spring 56 is matched, so that the first slider 42 can only approach to each other and cannot retreat, and the supporting plate 44 can not fall down automatically after the supporting plate 44 is lifted up, thereby ensuring the normal placement and use of the detector.

Specifically, the limiting structure 6 includes a mounting plate 61, a rotating shaft 62, a limiting groove 63, a limiting block 64, a fixing sleeve 65, an insertion rod 66, a fifth spring 67, a jack 68 and a button 69, the mounting plate 61 is connected to the support plate 44 through the rotating shaft 62, the limiting groove 63 is arranged in the support plate 44 and has a fan-shaped structure, the limiting block 64 is fixed outside the rotating shaft 62 and has a fan-shaped structure, the limiting block 64 is connected to the fixing shaft 62 through the limiting groove 63 and the support plate 44, the fixing sleeve 65 is fixed outside the rotating shaft 62, the insertion rod 66 is connected to the fixing sleeve 65 in a sliding manner, the fifth spring 67 is fixed between the insertion rod 66 and the fixing sleeve 65 in a clamping manner, the jack 68 is arranged inside the support plate 44, and the button 69 is connected to the jack 68 in a sliding manner and has a T-shaped structure, when the detector is required to be placed and fixed, the mounting plate 61 is required to be rotated out of the supporting plate 44, the mounting plate 61 is rotated through the rotating shaft 62, the outer part of the rotating shaft 62 is fixed to form the limiting block 64 with a fan-shaped structure, so that the limiting block 64 can be ensured to be rotated at a ninety degree angle inside the limiting groove 63, and the mounting plate 61 and the supporting plate 44 are in a vertical relation after the mounting plate 61 is rotated, so that the detector can be conveniently observed after the detector is placed, the fixing sleeve 65 is fixed to the outer part of the rotating shaft 62, the inserting rod 66 is connected to the inner part of the fixing sleeve 65 in a sliding manner, one end of the inserting rod 66 is of a hemispherical structure, and when the rotating shaft 62 is rotated to a certain position, the inserting rod 62 is inserted into the inserting hole 68 under the elastic force of the fifth spring 67, at this time, the rotating shaft 62 can be fixed, so that the detector is prevented from automatically rotating when being fixed, when the detector needs to be stored, the inserting rod 66 is withdrawn from the inner part of the inserting hole 68 only by pressing the button 69, and at this time, the rotating shaft 62 can be rotated to store the mounting plate 61.

Specifically, the fixing structure 7 includes a pulling block 71, a placing plate 72, an extending plate 73, a hinge 74, moving blocks 75, a fixing plate 76, a sixth spring 77, a pulley 78 and a pulling rope 79, the pulling block 71 is slidably connected to the inside of the mounting plate 61, the placing plate 72 is fixedly installed at one end of the pulling block 71, the extending plate 73 is rotatably connected to one end of the placing plate 72 through the hinge 74, two moving blocks 75 in a symmetrical relationship are slidably connected to the inside of the mounting plate 61, the sixth spring 77 is fixedly clamped between the two moving blocks 75 and the mounting plate 61, the fixing plate 76 is fixedly installed at one end of each of the two moving blocks 75, the two moving blocks 75 and the pulling block 71 are connected through the two pulling ropes 79, and the two pulleys 78 are rotatably connected to the inside of the mounting plate 61, and the two pulling ropes 79 respectively slide on the two pulleys 78, when the mounting plate 61 is spread, the detector is placed on the placing plate 72, since the extension plate 73 is rotatably connected to one end of the placing plate 72 through the hinge 74, the placing area of the placing plate 72 can be increased, the placement of the detector can be more stable, and since the placing plate 72 is fixed with the pulling block 71 slidably coupled to the inside of the mounting plate 61, and since the two moving blocks 75 to which the two fixing plates 76 are fixed to the pulling block 71 by the two pulling ropes 79, therefore, when the detector is placed on the placing plate 72, the pulling block 71 automatically clamps and fixes the two fixing plates 76 close to the detector under the action of gravity of the detector, so that the detector can be installed and fixed conveniently and quickly.

When in use, the screw rod 24 needs to be rotated, because the screw rod 24 is in threaded connection with the rack 28, the rack 28 is in sliding connection with the inside of the box body 1, when the screw rod 24 is rotated, the rack 28 can slide in the box body 1, because the rack 28 is meshed with the gear 27 fixed on the outside of the supporting shaft 21, the supporting sleeve 21 can be rotated out from the bottom end of the inside of the box body 1 by rotating the screw rod 24, so that the supporting sleeve 21 can be conveniently stored when not in use, the space can be conveniently reduced, the carrying is convenient, and the protection effect can be realized, when the supporting sleeve 21 is rotated out, the box body 1 can be placed on the outer surface of a steel pipe, because the supporting rods 22 are in sliding connection with the inside of a plurality of the supporting sleeves 21, the rotating balls 23 are in rotating connection with one end of the supporting rods 22, through the arrangement of the rotating ball 23, the box body 1 can be conveniently moved, and the elastic force of the first spring 26 is matched, so that the box body 1 can be better attached to the surface of the steel pipe, the detection and the movement can be better performed, when the detection head needs to be clamped and fixed, only the second clamping plate 33 needs to be pulled open, then the detection head is placed into the groove between the two clamping plates, because two guide rods 38 are fixed at one end of the first clamping plate 32 in a symmetrical relation, and the two guide rods 38 are both connected in the second clamping plate 33 in a sliding way, through the arrangement of the two guide rods 38, the guide effect can be played, the situation that the two clamping plates deviate when the detection head is fixed is prevented, and through the arrangement of the two guide rods 38 and the third spring 39 between the second clamping plate 33, the automatic clamping of the detection head can be realized, the purpose of convenient installation and disassembly of the detection head is achieved, the first clamping plate 32 can always keep a state vertical to the box body 1 through the rotation rod 36 and the box body 1, the second spring 37 is clamped and fixed between the rotation rod 36 and the box body 1, and the first clamping plate 32 can always keep a state vertical to the box body 1 through the elastic force action of the second spring 37, so that the clamped detection head can be ensured to be in a vertical relation with the surface of a steel pipe, the detection of the steel pipe is facilitated, the contact rod 35 in an inclined structure is fixed at one end of the first clamping plate 32, and through the action of the contact rod 35, the support plate 44 can extrude the contact rod 35 to rotatably store the clamping plate when the support plate 44 is stored, so that the clamping plate can be conveniently stored and stored; when the placement instrument needs to be placed, the support plate 44 can be lifted from the inside of the box body 1, because the support plate 44 is supported by the two crossed folding rods 43, and the two folding rods 43 slide with the box body 1 and the support plate 44 through the two first sliders 42 and the two second sliders 46, respectively, the lifting and the storage of the support plate 44 can be realized, so that the storage and the storage can be conveniently carried out when the placement instrument is not used, and the installation of a detection head can be convenient, namely after the support plate 44 is lifted to a certain height, because the fixing block 51 is connected in a sliding manner inside the first slider 42, the second fixing teeth 54 with the fixed cross section in a right-angled triangular structure at one end of the fixing block 51 are matched with the plurality of first fixing teeth 53 fixed in the box body 1 in a linear relationship, the directions of the two fixed teeth are opposite, and the elastic action of the fourth spring 56 is matched, so that the first sliding block 42 can only approach to each other and cannot retreat in a natural state, and the supporting plate 44 can not automatically fall down after the supporting plate 44 is lifted, so that the normal placement and use of the detector are ensured; when the detector is required to be placed and fixed, the mounting plate 61 is required to be rotated out of the supporting plate 44, the mounting plate 61 is rotated through the rotating shaft 62, the outer part of the rotating shaft 62 is fixed to form the limiting block 64 with a fan-shaped structure, so that the limiting block 64 can be ensured to be rotated at a ninety degree angle inside the limiting groove 63, and the mounting plate 61 and the supporting plate 44 are in a vertical relation after the mounting plate 61 is rotated, so that the detector can be conveniently observed after the detector is placed, the fixing sleeve 65 is fixed to the outer part of the rotating shaft 62, the inserting rod 66 is connected to the inner part of the fixing sleeve 65 in a sliding manner, one end of the inserting rod 66 is of a hemispherical structure, and when the rotating shaft 62 is rotated to a certain position, the inserting rod 62 is inserted into the inserting hole 68 under the elastic force of the fifth spring 67, at this time, the rotating shaft 62 can be fixed, the automatic rotation can be prevented when the detector is fixed, when the detector needs to be stored, the inserting rod 66 can be withdrawn from the inner part of the inserting hole 68 only by pressing the button 69, the rotating shaft 62 can be rotated to store the mounting plate 61, when the mounting plate 61 is spread, the detector is placed on the placing plate 72, since the extending plate 73 is rotatably connected to one end of the placing plate 72 through the hinge 74, the placing area of the placing plate 72 can be increased, the detector can be placed more stably, and since the placing plate 72 is fixed to the pulling block 71 slidably connected to the inner part of the mounting plate 61, and since the two moving blocks 75 fixing the two fixing plates 76 are fixed to the pulling block 71 through the two pulling ropes 79, when the detector is placed on the placing plate 72, the pulling block 71 automatically clamps and fixes the two fixing plates 76 close to the detector under the action of gravity of the detector, so that the detector can be installed and fixed conveniently and quickly.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a steel pipe nondestructive test fixing device which characterized in that: the device comprises a box body (1), a supporting structure (2), a clamping structure (3), a folding structure (4), a positioning structure (5), a limiting structure (6) and a fixing structure (7), wherein the supporting structure (2) used for supporting the box body (1) and the outer surface of a steel pipe is installed at the bottom end of the box body (1) which plays a role in containing and supporting, and the clamping structure (3) used for clamping a detection head is installed at the central position of the box body (1); the folding structure (4) used for folding and containing components for placing instruments is mounted at one end of the box body (1), and the positioning structure (5) used for limiting and fixing the folding structure (4) is arranged in the box body (1); the detector positioning and fixing device is characterized in that a limiting structure (6) used for limiting and fixing a component for supporting a detector to be placed is arranged at one end of the folding structure (4), and a fixing structure (7) used for clamping and fixing the detector is arranged inside the limiting structure (6).

2. The steel pipe nondestructive testing fixing device of claim 1, characterized in that: the supporting structure (2) comprises a supporting sleeve (21), a supporting rod (22), a rotating ball (23), a screw rod (24), a supporting shaft (25), a first spring (26), a gear (27), a rack (28) and a limiting ring (29), wherein the bottom end of the box body (1) is rotatably connected with two rows of supporting sleeves (21) through the supporting shaft (25), the two rows of supporting sleeves (21) are symmetrically distributed about the central line of the box body (1), the supporting rod (22) is slidably connected inside the two rows of supporting sleeves (21), one end of the supporting rod (22) departing from the supporting sleeve (21) is rotatably connected with the rotating ball (23), the first spring (26) is clamped and fixed between the supporting rod (22) and the supporting sleeve (21), and the rack (28) is slidably connected inside the box body (1), the gear (27) is fixed to the outer portion of each supporting shaft (25), the gear (27) and the box body (1) rotate, the gear (27) is meshed with the rack (28), one end of the box body (1) is connected with the screw rod (24) in a rotating mode, the limiting ring (29) is fixed to the outer portion of the screw rod (24), the limiting ring (29) and the box body (1) rotate, and the screw rod (24) is connected with the rack (28) in a threaded mode.

3. The steel pipe nondestructive testing fixing device of claim 1, characterized in that: the clamping structure (3) comprises a rotary groove (31), a first clamping plate (32), a second clamping plate (33), a rubber pad (34), a conflict rod (35), a rotary rod (36), a second spring (37), a guide rod (38) and a third spring (39), the rotary groove (31) is arranged at the central position of the box body (1), the first clamping plate (32) is arranged in the rotary groove (31), the rotary rod (36) with a T-shaped structure on the vertical fixed section at one end of the first clamping plate (32) is rotationally connected in the box body (1), the second spring (37) is clamped and fixed between the rotary rod (36) and the box body (1), the rotary rod (36) and the box body (1) are respectively fixed at the two ends of the second spring (37), the second clamping plate (33) is arranged at one end of the first clamping plate (32), first splint (32) are close to the one end of second splint (33) is the fixed two of symmetric relation guide bar (38), and two equal sliding connection in guide bar (38) in the inside of second splint (33), two guide bar (38) with the centre gripping is fixed between second splint (33) third spring (39) the one end of first splint (32) is the slope form fixed touch pole (35) first splint (32) with the close one end of second splint (33) is all glued rubber pad (34).

4. The steel pipe nondestructive testing fixing device of claim 1, characterized in that: the folding structure (4) comprises a first sliding chute (41), a first sliding block (42), a folding rod (43), a supporting plate (44), a second sliding chute (45) and a second sliding block (46), two first sliding chutes (41) with L-shaped structures are symmetrically arranged in the box body (1), two first sliding blocks (42) are connected inside the two first sliding grooves (41) in a sliding way, one end of each of the two first sliding blocks (42) is rotatably connected with the folding rod (43), and the two folding rods (43) are rotatably connected, the other ends of the two folding rods (43) are respectively connected with the second sliding block (46) in a rotating way, the supporting plate (44) is connected with the outer parts of the two second sliding blocks (46) in a sliding way, two second sliding grooves (45) are symmetrically arranged in the bottom end of the supporting plate (44).

5. The steel pipe nondestructive testing fixing device of claim 4, characterized in that: the positioning structure (5) comprises a fixed block (51), a pull ring (52), first fixed teeth (53), second fixed teeth (54), a mounting block (55) and a fourth spring (56), the fixed block (51) is connected in the first sliding block (42) in a sliding way, the pull ring (52) is fixed at one end of the fixed block (51), the mounting block (55) is fixed at one end of the fixed block (51) in a vertical relation, and the mounting block (55) is connected with the box body (1) in a sliding way, the fourth spring (56) is clamped and fixed between the mounting block (55) and the box body (1), a plurality of first fixing teeth (53) with triangular sections are fixed on the inner side wall of the box body (1) in a linear relation, and the second fixing teeth (54) with triangular cross sections are fixed at one end of the fixing block (51) close to the first fixing teeth (53).

6. The steel pipe nondestructive testing fixing device of claim 4, characterized in that: limiting structure (6) includes mounting panel (61), pivot (62), spacing groove (63), stopper (64), fixed cover (65), inserted bar (66), fifth spring (67), jack (68) and button (69), mounting panel (61) pass through pivot (62) rotate connect in backup pad (44) the inside of backup pad (44) is equipped with and is fan-shaped structure spacing groove (63) the external fixation of pivot (62) is fan-shaped structure stopper (64), just stopper (64) pass through spacing groove (63) with backup pad (44) rotate the outside of pivot (62) is still fixed cover (65) the internal sliding connection of fixed cover (65) has inserted bar (66) with the centre gripping is fixed between fixed cover (65) fifth spring (67), the insertion hole (68) is formed in the supporting plate (44), and the button (69) in a T-shaped structure is connected to the inside of the insertion hole (68) in a sliding mode.

7. The steel pipe nondestructive testing fixing device of claim 6, characterized in that: the fixing structure (7) comprises a pulling block (71), a placing plate (72), an extending plate (73), a hinge (74), moving blocks (75), a fixing plate (76), a sixth spring (77), pulleys (78) and pull ropes (79), wherein the pulling block (71) is connected to the inside of the mounting plate (61) in a sliding manner, the placing plate (72) is fixedly installed at one end of the pulling block (71), the extending plate (73) is rotatably connected to one end of the placing plate (72) through the hinge (74), the two moving blocks (75) in a symmetrical relationship are connected to the inside of the mounting plate (61) in a sliding manner, the sixth spring (77) is clamped and fixed between the two moving blocks (75) and the mounting plate (61), the fixing plate (76) is installed and fixed at one end of each moving block (75), and the two moving blocks (75) are connected to the pulling block (71) through the two pull ropes (79), the two pulleys (78) are rotatably connected to the inside of the mounting plate (61), and the two pull ropes (79) respectively slide on the two pulleys (78).