CN216049959U - Nondestructive testing device in power pipeline - Google Patents
Nondestructive testing device in power pipeline Download PDFInfo
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- CN216049959U CN216049959U CN202122638212.0U CN202122638212U CN216049959U CN 216049959 U CN216049959 U CN 216049959U CN 202122638212 U CN202122638212 U CN 202122638212U CN 216049959 U CN216049959 U CN 216049959U
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Abstract
The utility model discloses a nondestructive testing device in a power pipeline, which comprises a probe and a rod body, wherein an inclined strut assembly is arranged on the circumferential side wall of the rod body, and the size of an included angle formed between the inclined strut assembly and the rod body can be adjusted; still be equipped with the moving part that can follow the radial flexible of the body of rod on the outer wall of the body of rod, moving part one end is connected with the probe, the other end and the body of rod swing joint, and the moving part can rotate round the axis of the body of rod. The utility model can carry out nondestructive detection on the inner wall of the pipeline with the reducing structure and can adjust the direction of the probe in the pipeline.
Description
Technical Field
The utility model relates to the technical field of nondestructive testing of pipelines, in particular to a nondestructive testing device in a power pipeline.
Background
The nondestructive detection is to detect whether the detected object has defects or non-uniformity by using the characteristics of sound, light, magnetism, electricity and the like of the substance on the premise of not damaging or influencing the use performance of the detected object, and give information such as the size, position, property, quantity and the like of the defects so as to ensure the use performance of the pipeline and overhaul the pipeline. Current power pipeline need carry out nondestructive test to its inside, but traditional nondestructive test device most can't carry out nondestructive test to the pipeline of reducing structure to be not convenient for carry out quick adjustment to the orientation of probe.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provide a nondestructive testing device in a power pipeline, which can perform nondestructive testing on the inner wall of the pipeline with a variable diameter structure and can adjust the direction of a probe in the pipeline.
The utility model is realized by the following technical scheme:
the nondestructive testing device in the power pipeline comprises a probe and a rod body, wherein an inclined strut assembly is arranged on the circumferential side wall of the rod body, and the size of an included angle formed between the inclined strut assembly and the rod body can be adjusted; still be equipped with the moving part that can follow the radial flexible of the body of rod on the outer wall of the body of rod, moving part one end is connected with the probe, the other end and the body of rod swing joint, and the moving part can rotate round the axis of the body of rod.
Aiming at the nondestructive testing device for the inner wall of the pipeline in the prior art, in the process that the probe moves on the inner wall of the pipeline, the probe can be ensured to be effectively contacted with the inner wall of the pipeline by using the arranged elastic supporting piece, but in the process that the probe moves in the pipeline with the reducing structure, although the nondestructive testing device can smoothly transit to a large-diameter section in a small-diameter section of the pipeline, when the large-diameter section moves to a small-diameter section, the step at the joint of the large-diameter section and the small-diameter section of the pipeline is easy to obstruct the normal movement of the nondestructive testing device, therefore, the technical scheme is that the inclined strut component is arranged on the rod body which is required to be held by an operator, the rod body can be ensured to be stably moved in the pipeline by using the arranged inclined strut component, and when the testing device moves from the small-diameter section to the large-diameter section of the pipeline, the arranged inclined strut component can automatically increase the size of an included angle between the inclined strut component and the rod body, and ensures that the inclined strut component can be contacted with the inner wall of the pipeline all the time, when the detection device moves from the large-diameter section to the small-diameter section of the pipeline, the rod body drives the inclined strut assembly to move to the step of the large-diameter section and the small-diameter section of the pipeline, the step acts on the inclined strut assembly to force the inclined strut assembly to incline towards the outer wall of the rod body, and the size of an included angle between the inclined strut assembly and the rod body is changed, so that the inclined strut assembly can smoothly pass through the step; and in order to guarantee the body of rod at the in-process that the pipeline removed, the probe can still be with the contact of pipeline inner wall all the time, so still be provided with the moving part on the body of rod, the moving part that utilizes to set up guarantees that the probe can follow the radial movement of the body of rod, satisfies the body of rod use of different internal diameters, and the body of rod is at the in-process that removes simultaneously, and the moving part that utilizes to set up can also make the probe rotate round the axis of the body of rod, realizes the ascending short-term test of pipeline inner wall circumference.
Further, the bracing subassembly is at least two, and the bracing subassembly is around the axis of the body of rod and is distributed in annular array.
In order to ensure that the rod body can effectively and stably move on the axis of the pipeline, the number of the inclined strut assemblies is preferably four, and the inclined strut assemblies are uniformly distributed on the same circumferential direction of the rod body.
Furthermore, the inclined strut assembly comprises an inclined strut, a first elastic part and a roller, one end of the inclined strut is hinged to the outer wall of the rod body, the other end of the inclined strut is connected with the roller, one end of the first elastic part is connected with the outer wall of the rod body, and the other end of the first elastic part is in contact with the inclined strut.
The inclined strut is hinged with the outer wall of the rod body through the hinge, so that the inclined strut can rotate around the hinged part on the outer wall of the rod body, the distance between the roller and the inner wall of the pipeline is changed, and in the using process, when the pipeline is transited from a small-diameter section to a large-diameter section, the roller on the inclined strut can move towards the inner wall of the pipeline under the action of the first elastic piece, so that the roller can be always contacted with the inner wall of the pipeline; when the pipeline runs into the large-diameter section and the small-diameter section, the inclined stay bar in the inclined state is acted by the step in the pipeline, the inclined stay bar is forced to incline towards the rod body direction, the roller on the inclined stay bar can cross the step and smoothly moves to the inner wall of the small-diameter section of the pipeline, and therefore the inclined stay assembly is adjusted at the diameter-changing position of the pipeline.
Furthermore, the rod body comprises a first connecting rod, a second connecting rod and a connecting piece, the first connecting rod can be connected with the second connecting rod through the connecting piece along the axis of the first connecting rod, the inclined supporting rod is hinged to the outer wall of the first connecting rod, the first elastic piece is connected with the outer wall of the first connecting rod, and the moving piece is located between the first connecting rod and the second connecting rod and connected with the connecting piece.
In order to guarantee that the moving part that sets up on the body of rod outer wall can normally rotate around the axis of the body of rod, the event cuts off the body of rod from the middle part and forms head rod and second connecting rod, and utilize the connecting piece to connect the tip of head rod and second connecting rod, guarantee head rod and second connecting rod and keep on same straight line, the moving part can rotate at the axis around head rod and second connecting rod simultaneously, thereby realized the moving part circumferential direction on the body of rod.
Furthermore, the connecting piece comprises a plurality of connecting units, the moving piece is connected with one of the connecting units, the connecting units comprise a cross rod and two connecting balls, annular grooves are formed in the end parts, facing each other, of the first connecting rod and the second connecting rod, and the axes of the first connecting rod and the second connecting rod pass through the circle center of the annular groove; the two connecting balls of the connecting unit are respectively positioned in the annular grooves of the first connecting rod and the second connecting rod, and the connecting balls can rotate around the axes of the first connecting rod and the second connecting rod in the annular grooves.
Can rotate smoothly on head rod and second connecting rod in order to guarantee the connecting piece, the event all is provided with the ring channel at head rod and second connecting rod tip each other, two connection balls of connecting piece are located the ring channel, and connect the ball and can remove in the ring channel, the both ends of horizontal pole insert respectively in the tip of head rod and second connecting rod with be connected the ball and be connected, make the horizontal pole can then connect the ball and rotate together, thereby guaranteed that the moving part can rotate smoothly on the body of rod.
Further, still be equipped with the movable rod in the second connecting rod, the movable rod runs through the second connecting rod along the axis of second connecting rod, still be equipped with the connecting block that quantity and linkage unit quantity are the same on the outer wall of second connecting rod, and the connecting block is connected with each linkage unit's horizontal pole respectively.
The outer end of the movable rod that sets up stretches into outside in second connecting rod, the in-process that testing personnel used, the second connecting rod is held to one hand, the movable rod is held to the other hand and is rotated it, because the connecting block that sets up on the movable rod is connected with the horizontal pole respectively, therefore, the movable rod can drive the horizontal pole and then rotate together when driving the connecting block rotation, and then make the ring channel internal rotation of connecting ball at head rod and second connecting rod, finally realize the regulation to moving part circumferential position in the pipeline.
Furthermore, the movable part comprises a fixed block, an extension tube and a connector, the fixed block is connected with one of the cross rods, one end of the extension tube is connected with the fixed block in a sealing manner, the other end of the extension tube is connected with the connector in a sealing manner, and the probe is fixed at the end part of the connector; an air pipe is further arranged in the movable rod, one end of the air pipe is connected with the air pump, and the other end of the air pipe is communicated with the telescopic pipe.
In order to ensure that the probe can contact with the inner wall of the pipeline, the telescopic pipe is arranged and is a corrugated pipe, the inside of the telescopic pipe can expand and stretch along the axial direction after being inflated, the length of the telescopic pipe is changed, the telescopic pipe is connected with an external air pump through an air pipe and also can be connected with an external inflator, the telescopic pipe can be forced to move along the radial direction of the rod body by inflating air, so that the probe is driven to move to the inner wall of the pipeline, the detection of the inner walls of the pipelines with different diameters is realized, when the probe needs to move back, only the air which is inflated into the telescopic pipe needs to be exhausted, and the probe can be restored to the initial position.
Further, a bearing matched with the movable rod is further arranged in the second connecting rod, and the bearing is sleeved on the movable rod.
In order to reduce the frictional resistance between the movable rod and the second connecting rod, the movable rod is easy to rotate by a detection person.
Further, the end, far away from the first connecting rod, of the second connecting rod is further provided with a groove, the movable rod is located in the groove, the movable rod is further provided with a limiting sleeve and a fixing nut, the limiting sleeve and the fixing nut are sleeved on the movable rod, and the fixing nut can push the limiting sleeve to move into the groove.
In order to avoid the movable rod at the second connecting rod internal rotation by oneself, the event is provided with the recess in the tail end department of second connecting rod, when needs fix the movable rod, rotatory fixation nut, fixation nut promotes the stop collar and removes to the recess in, utilize frictional force between stop collar and the recess inner wall to retrain the movable rod, in order to improve the frictional resistance between stop collar and the recess, can set up the one deck rubber pad at recess inner wall or stop collar outer wall, further improve frictional resistance between them.
Furthermore, a second elastic piece is arranged on the movable rod and is positioned in the groove; still be equipped with the spout on the outer wall of movable rod, be equipped with the slider of being connected with the stop collar in the spout, still be equipped with the marker pole on the outer wall of stop collar, the orientation of marker pole and probe is unanimous.
In order to facilitate the use, a second elastic part is also arranged in the groove, the second elastic part and the first elastic part are both springs, and when the fixing nut is unscrewed, the limiting sleeve can be pushed to move out of the groove by self under the action of the second elastic part; simultaneously for the convenience of inspector judges the orientation of the probe that is located the pipeline, so still be provided with the marker post on the outer wall of stop collar, just can judge the orientation of probe through the orientation of the marker post that is located outside the pipeline.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
1. when the inclined strut assembly is transited from the large-diameter section to the small-diameter section in the pipeline, the step at the position is utilized to act on the inclined strut to force the inclined strut to incline downwards, so that the inclined strut assembly smoothly passes through the step and reaches the inner wall of the small-diameter section of the pipeline, and the nondestructive testing device can smoothly move in the pipeline with the reducing structure;
2. the movable rod can drive the movable part on the outer wall of the rod body to move circumferentially in the pipeline by utilizing the arranged movable rod, so that the position of the probe in the pipeline is quickly adjusted, and meanwhile, the movable rod can be fixed in the second connecting rod by utilizing the arranged limiting sleeve, and the movable rod is prevented from rotating automatically.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the principles of the utility model. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of another embodiment of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 1;
FIG. 4 is an enlarged view of the portion B of FIG. 1 according to the present invention.
Reference numbers and corresponding part names in the drawings:
1-pipeline, 2-diagonal brace rod, 3-probe, 4-connector, 5-telescopic tube, 6-movable rod, 7-bearing, 8-rod body, 9-air tube, 10-first elastic element, 11-roller, 12-first connecting rod, 13-fixed block, 14-connecting ball, 15-cross rod, 16-connecting block, 17-second connecting rod, 18-sliding groove, 19-sliding block, 20-limiting sleeve, 21-second elastic element, 22-marking rod and 23-fixed nut.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
As shown in fig. 1 to 4, the utility model includes a probe 3, and further includes a rod body 8, an inclined strut assembly is arranged on the circumferential side wall of the rod body 8, and the size of an included angle formed between the inclined strut assembly and the rod body 8 can be adjusted; still be equipped with the moving part that can follow the radial flexible of the body of rod 8 on the outer wall of the body of rod 8, moving part one end is connected with probe 3, the other end and the body of rod 8 swing joint, and the moving part can rotate round the axis of the body of rod 8.
Aiming at the nondestructive testing device for the inner wall of the pipeline in the prior art, in the process that the probe moves on the inner wall of the pipeline, the probe can be ensured to be effectively contacted with the inner wall of the pipeline by using the arranged elastic supporting piece, but in the process that the probe moves in the pipeline with the reducing structure, although the nondestructive testing device can smoothly transit to a large-diameter section in a small-diameter section of the pipeline, when the large-diameter section moves to a small-diameter section, the step at the joint of the large-diameter section and the small-diameter section of the pipeline is easy to obstruct the normal movement of the nondestructive testing device, therefore, the technical scheme is that the inclined strut component is arranged on the rod body 8 which needs to be held by an operator, the rod body 8 can be ensured to stably move in the pipeline 1 by using the arranged inclined strut component, and when the testing device moves from the small-diameter section to the large-diameter section of the pipeline 1, the arranged inclined strut component can automatically increase the size between the inclined strut component and the rod body 8, when the detection device moves from the large-diameter section to the small-diameter section of the pipeline 1, the rod body 8 drives the inclined strut assembly to move to the step of the large-diameter section and the small-diameter section of the pipeline 1, the step acts on the inclined strut assembly to force the inclined strut assembly to incline towards the outer wall of the rod body 8, and the size of an included angle between the inclined strut assembly and the rod body 8 is changed, so that the inclined strut assembly can smoothly pass through the step; and in order to guarantee the in-process that the body of rod 8 removed in the pipeline, probe 3 can contact with the pipeline inner wall all the time, so still be provided with the moving part on the body of rod 8, the moving part that utilizes to set up guarantees that probe 3 can follow the radial movement of the body of rod 8, satisfies the body of rod 8 use of different internal diameters, and the body of rod 8 is at the in-process that removes simultaneously, and the moving part that utilizes to set up can also make probe 3 rotate round the axis of the body of rod, realizes the ascending short-term test to pipeline inner wall circumference.
The bracing subassembly is at least two, and the bracing subassembly is around the axis of the body of rod 8 and is the annular array distribution.
In order to ensure that the rod body 8 can effectively and stably move on the axis of the pipeline, the number of the inclined strut assemblies is preferably four, and the inclined strut assemblies are uniformly distributed on the same circumferential direction of the rod body 8.
The inclined strut assembly comprises an inclined strut 2, a first elastic part 10 and a roller 11, one end of the inclined strut 2 is hinged to the outer wall of the rod body 8, the other end of the inclined strut is connected with the roller 11, one end of the first elastic part 10 is connected with the outer wall of the rod body 8, and the other end of the first elastic part is in contact with the inclined strut 2.
The inclined strut 2 is hinged with the outer wall of the rod body 8 through a hinge, so that the inclined strut 2 can rotate around the hinged part on the outer wall of the rod body 8, the distance between the roller 11 and the inner wall of the pipeline 1 is changed, and in the using process, when the pipeline 1 is transited from a small-diameter section to a large-diameter section, the roller 11 on the inclined strut 2 can move towards the inner wall of the pipeline 1 under the action of the first elastic part 10, so that the roller 11 can be always contacted with the inner wall of the pipeline 1; when the pipeline 1 is transited from the large-diameter section to the small-diameter section, the inclined strut 2 in the inclined state is acted by the step in the pipeline 1, the inclined strut 2 is forced to incline towards the direction of the rod body 8, the roller 11 on the inclined strut 2 is ensured to be capable of passing over the step and smoothly move to the inner wall of the small-diameter section of the pipeline 1, and therefore the adjustment of the inclined strut assembly at the diameter-variable position of the pipeline is achieved.
The rod body 8 comprises a first connecting rod 12, a second connecting rod 17 and a connecting piece, the connecting piece can connect the first connecting rod 12 with the second connecting rod 17 along the axis of the first connecting rod 12, the inclined strut 2 is hinged with the outer wall of the first connecting rod 12, the first elastic piece 10 is connected with the outer wall of the first connecting rod 12, and the movable piece is located between the first connecting rod 12 and the second connecting rod 17 and is connected with the connecting piece.
In order to guarantee that the moving part that sets up on the body of rod 8 outer wall can normally rotate around the axis of the body of rod 8, the event cuts off the body of rod 8 from the middle part and forms first connecting rod 12 and second connecting rod 17, and utilize the connecting piece to connect the tip of first connecting rod 12 and second connecting rod 17, guarantee that first connecting rod 12 and second connecting rod 17 keep on same straight line, the moving part can rotate around the axis of first connecting rod 12 and second connecting rod 17 simultaneously, thereby the circumferential direction of moving part on the body of rod 8 has been realized.
The connecting piece comprises a plurality of connecting units, the moving piece is connected with one of the connecting units, each connecting unit comprises a cross rod 15 and two connecting balls 14, annular grooves are formed in the end parts, facing each other, of the first connecting rod 12 and the second connecting rod 17, and the axes of the first connecting rod 12 and the second connecting rod 17 pass through the circle center of each annular groove; the two connecting balls 14 of the connecting unit are located in annular grooves of the first connecting rod 12 and the second connecting rod 17, respectively, and the connecting balls 14 can rotate around the axes of the first connecting rod 12 and the second connecting rod 17 in the annular grooves.
In order to guarantee that the connecting piece can rotate smoothly on head rod 12 and second connecting rod 17, the event all is provided with the ring channel towards tip each other at head rod 12 and second connecting rod 17, two of connecting piece are connected ball 14 and are located the ring channel, and connect ball 14 and can remove in the ring channel, the both ends of horizontal pole 15 are inserted respectively in the tip of head rod 12 and second connecting rod 17 and are connected with being connected ball 14, make horizontal pole 15 can follow and connect ball 14 and rotate together, thereby guaranteed that the moving part can rotate smoothly on the body of rod 8.
Still be equipped with movable rod 6 in the second connecting rod 17, movable rod 6 runs through second connecting rod 17 along the axis of second connecting rod 17, still be equipped with the connecting block 16 that quantity and linkage unit quantity are the same on the outer wall of second connecting rod 17, and connecting block 16 is connected with each linkage unit's horizontal pole 15 respectively.
The outer end of the movable rod 6 that sets up stretches into in second connecting rod 17 to outside, the in-process that testing personnel used, one holds second connecting rod 17, another hand is held movable rod 6 and is rotated it, because the connecting block 16 that sets up on the movable rod 6 is connected with horizontal pole 15 respectively, therefore, when movable rod 6 took to move connecting block 16 and rotate, can drive horizontal pole 15 and follow and rotate together, and then make connecting ball 14 at the ring channel internal rotation of head rod 12 and second connecting rod 17, finally realize the regulation to the moving part circumferential position in pipeline 1.
The movable part comprises a fixed block 13, an extension tube 5 and a connector 4, the fixed block 13 is connected with one cross rod 15, one end of the extension tube 5 is hermetically connected with the fixed block 13, the other end of the extension tube 5 is hermetically connected with the connector 4, and the probe 3 is fixed at the end part of the connector 4; an air pipe 9 is further arranged in the movable rod 6, one end of the air pipe 9 is connected with an air pump, and the other end of the air pipe is communicated with the telescopic pipe 5.
In order to guarantee that probe 3 can contact with the inner wall of pipeline 1, so flexible pipe 5 has been set up, flexible pipe 5 is the bellows, its inside inflation back can be followed its axial expansion and drawing, change the length of flexible pipe 5, flexible pipe 5 utilizes trachea 9 to be connected with external air pump, also can be connected with external inflater, can be to filling into the gas in flexible pipe 5 and force flexible pipe 5 along the radial movement of the body of rod 8, thereby drive probe 3 and remove the inner wall to pipeline 1, the realization is detected the pipeline inner wall of different diameters, and when needs move probe 3 back, only need will fill into the gas discharge to flexible pipe 5 in, just can make probe 3 resume to initial position.
And a bearing 7 matched with the movable rod 6 is further arranged in the second connecting rod 17, and the bearing 7 is sleeved on the movable rod 6.
In order to reduce the frictional resistance between the movable bar 6 and the second connecting bar 17, it is easy for the inspector to rotate the movable bar 6.
The end of the second connecting rod 17 far away from the first connecting rod 12 is further provided with a groove, the movable rod 6 is located in the groove, the movable rod 6 is further provided with a limiting sleeve and a fixing nut 23, the limiting sleeve 20 and the fixing nut 23 are both sleeved on the movable rod 6, and the fixing nut 23 can push the limiting sleeve 20 to move into the groove.
In order to avoid the movable rod 6 to rotate in the second connecting rod 17 by itself, a groove is formed in the tail end of the second connecting rod 17, when the movable rod 6 needs to be fixed, the fixing nut 23 is rotated, the fixing nut 23 pushes the limiting sleeve 20 to move into the groove, the movable rod 6 is restrained by using the friction force between the limiting sleeve 20 and the inner wall of the groove, and in order to improve the friction resistance between the limiting sleeve 20 and the groove, a layer of rubber pad can be arranged on the inner wall of the groove or the outer wall of the limiting sleeve 20, so that the friction resistance between the inner wall of the groove and the outer wall of the limiting sleeve 20 is further improved.
The movable rod 6 is also provided with a second elastic piece 21, and the second elastic piece 21 is positioned in the groove; the outer wall of the movable rod 6 is further provided with a sliding groove, a sliding block 19 connected with a limiting sleeve 20 is arranged in the sliding groove, the outer wall of the limiting sleeve 20 is further provided with a mark rod 22, and the mark rod 22 is consistent with the orientation of the probe 3.
For convenience in use, a second elastic piece 21 is further arranged in the groove, the second elastic piece 21 and the first elastic piece 10 are both springs, and when the fixing nut 23 is unscrewed, the limiting sleeve 20 can be pushed to move out of the groove by itself under the action of the second elastic piece 21; meanwhile, in order to facilitate the detection personnel to judge the orientation of the probe 3 positioned in the pipeline 1, the outer wall of the limiting sleeve 20 is further provided with an identification rod 22, the orientation of the probe 3 can be judged through the orientation of the identification rod 22 positioned outside the pipeline 1, and in order to ensure that the limiting sleeve 20 can synchronously rotate with the movable rod 6, the outer wall of the movable rod 6 is further provided with a sliding block 19.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The nondestructive testing device in the power pipeline comprises a probe (3) and is characterized by also comprising a rod body (8), wherein an inclined strut assembly is arranged on the circumferential side wall of the rod body (8), and the size of an included angle formed between the inclined strut assembly and the rod body (8) can be adjusted;
still be equipped with the moving part that can follow body of rod (8) radial flexible on the outer wall of the body of rod (8), moving part one end is connected with probe (3), the other end and body of rod (8) swing joint, and the moving part can rotate round the axis of the body of rod (8).
2. The nondestructive inspection device in an electric power pipeline according to claim 1, wherein the number of the diagonal bracing members is at least two, and the diagonal bracing members are distributed in an annular array around the axis of the rod body (8).
3. The nondestructive testing device in the power pipeline according to claim 1, wherein the diagonal brace component comprises a diagonal brace (2), a first elastic member (10) and a roller (11), one end of the diagonal brace (2) is hinged with the outer wall of the rod body (8), the other end of the diagonal brace is connected with the roller (11), one end of the first elastic member (10) is connected with the outer wall of the rod body (8), and the other end of the first elastic member is in contact with the diagonal brace (2).
4. The nondestructive testing device in the power pipeline according to claim 3, wherein the rod body (8) comprises a first connecting rod (12), a second connecting rod (17), and a connecting member, the connecting member can connect the first connecting rod (12) with the second connecting rod (17) along the axis of the first connecting rod (12), the diagonal rod (2) is hinged with the outer wall of the first connecting rod (12), the first elastic member (10) is connected with the outer wall of the first connecting rod (12), and the movable member is located between the first connecting rod (12) and the second connecting rod (17) and connected with the connecting member.
5. The nondestructive testing device in the power pipeline according to claim 4, wherein the connecting member comprises a plurality of connecting units, the movable member is connected with one of the connecting units, the connecting units comprise a cross rod (15) and two connecting balls (14), annular grooves are formed in the ends of the first connecting rod (12) and the second connecting rod (17) facing each other, and the axes of the first connecting rod (12) and the second connecting rod (17) pass through the center of each annular groove;
the two connecting balls (14) of the connecting unit are respectively positioned in annular grooves of the first connecting rod (12) and the second connecting rod (17), and the connecting balls (14) can rotate around the axes of the first connecting rod (12) and the second connecting rod (17) in the annular grooves.
6. The nondestructive testing device in the power pipeline according to claim 5, wherein a movable rod (6) is further arranged in the second connecting rod (17), the movable rod (6) penetrates through the second connecting rod (17) along the axis of the second connecting rod (17), connecting blocks (16) with the same number as the connecting units are further arranged on the outer wall of the second connecting rod (17), and the connecting blocks (16) are respectively connected with the cross rods (15) of the connecting units.
7. The nondestructive testing device in the power pipeline according to claim 6, wherein the moving part comprises a fixed block (13), an extension tube (5) and a connector (4), the fixed block (13) is connected with one of the cross rods (15), one end of the extension tube (5) is hermetically connected with the fixed block (13), the other end of the extension tube is hermetically connected with the connector (4), and the probe (3) is fixed at the end of the connector (4);
an air pipe (9) is further arranged in the movable rod (6), one end of the air pipe (9) is connected with the air pump, and the other end of the air pipe is communicated with the telescopic pipe (5).
8. The nondestructive testing device in the power pipeline according to claim 5 is characterized in that a bearing (7) matched with the movable rod (6) is further arranged in the second connecting rod (17), and the bearing (7) is sleeved on the movable rod (6).
9. The nondestructive testing device in the power pipeline according to claim 6, wherein a groove is further formed in the end, away from the first connecting rod (12), of the second connecting rod (17), the movable rod (6) is located in the groove, a limiting sleeve and a fixing nut (23) are further arranged on the movable rod (6), the limiting sleeve (20) and the fixing nut (23) are both sleeved on the movable rod (6), and the fixing nut (23) can push the limiting sleeve (20) to move into the groove.
10. The nondestructive testing device in the power pipeline according to claim 9, wherein a second elastic member (21) is further provided on the movable rod (6), and the second elastic member (21) is located in the groove;
still be equipped with spout (18) on the outer wall of movable rod (6), be equipped with slider (19) of being connected with stop collar (20) in spout (18), still be equipped with on the outer wall of stop collar (20) sign pole (22), the orientation of sign pole (22) and probe (3) is unanimous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202122638212.0U CN216049959U (en) | 2021-10-29 | 2021-10-29 | Nondestructive testing device in power pipeline |
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| CN202122638212.0U CN216049959U (en) | 2021-10-29 | 2021-10-29 | Nondestructive testing device in power pipeline |
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| CN216049959U true CN216049959U (en) | 2022-03-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116136423A (en) * | 2023-03-06 | 2023-05-19 | 舟山市质量技术监督检测研究院 | Protection structure for bottom detection device in large tank body |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116136423A (en) * | 2023-03-06 | 2023-05-19 | 舟山市质量技术监督检测研究院 | Protection structure for bottom detection device in large tank body |
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