CN113776741A

CN113776741A - Pipeline detection device

Info

Publication number: CN113776741A
Application number: CN202110972949.8A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2021-12-10

Abstract

The pipeline detection device comprises a water pipe, a telescopic pipe, a supporting seat, a pipeline inspection ring and a water spraying piece; the water spraying piece and the extension pipe are respectively coaxially connected to two ends of the supporting pipe and communicated with the inner cavity of the supporting pipe; the supporting seat is fixed outside the supporting tube; the water pipe is communicated with the water inlet of the telescopic pipe; the telescopic pipe comprises an end plate, a rubber ring, an installation cylinder, a telescopic rod, a fixed seat, a connecting ball and a pipe body; the pipe body is a round pipe with a hollow inner cavity, and one end of the pipe body extends into the supporting pipe and is connected with the supporting pipe through threads; the end plate is integrally connected with the end part of the pipe body and extruded on the inner wall of the supporting pipe; the rubber ring is extruded between the pipe body and the supporting pipe; the mounting cylinder is fixed on the outer wall of the pipe body and is positioned outside the supporting pipe; the telescopic rod is connected to the mounting cylinder by threads; the fixed seat is fixed in the water inlet of the pipe body by a bolt; the connecting ball is pivoted in the fixed seat; by adjusting the length of the telescopic pipe, the inspection requirements of pipelines with various lengths are met.

Description

Pipeline detection device

Technical Field

The invention relates to the technical field of pipeline detection equipment, in particular to a pipeline detection device.

Background

The pipeline may be stored in a gap after being manufactured or the pipeline is subjected to external force action such as impact in the carrying process, so that the pipeline is damaged, and finally the pipeline is poor in sealing performance. Before the pipe is put into use, it is necessary to check the sealing properties of the pipe. Due to different lengths of pipelines, when pipelines with different lengths are inspected, the existing inspection equipment cannot meet the inspection of pipelines with all lengths.

Therefore, it is desirable to provide a pipeline inspection device that can be adjusted according to the length of a pipeline to inspect the sealing performance of pipelines of different lengths.

Disclosure of Invention

The invention aims to provide a pipeline detection device which can be adjusted according to the length of a pipeline and can realize the detection of the sealing performance of pipelines with different lengths.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a pipeline detection device comprises a water pipe, a telescopic pipe, a supporting seat, a pipeline inspection ring and a water spraying piece; the water spraying piece and the extension pipe are respectively coaxially connected to two ends of the supporting pipe and communicated with the inner cavity of the supporting pipe; the supporting seat is fixed outside the supporting tube; the water pipe is communicated with the water inlet of the telescopic pipe; the telescopic pipe comprises an end plate, a rubber ring, an installation cylinder, a telescopic rod, a fixed seat, a connecting ball and a pipe body; the pipe body is a round pipe with a hollow inner cavity, and one end of the pipe body extends into the supporting pipe and is connected with the supporting pipe through threads; the end plate is integrally connected with the end part of the pipe body and extruded on the inner wall of the supporting pipe; the rubber ring is extruded between the pipe body and the supporting pipe; the mounting cylinder is fixed on the outer wall of the pipe body and is positioned outside the supporting pipe; the telescopic rod is connected to the mounting cylinder by threads; the fixed seat is fixed in the water inlet of the pipe body by a bolt; the connecting ball is pivoted in the fixing seat.

Preferably, the supporting seat comprises a mounting ring, an extrusion seat and an adjusting piece; the mounting ring is circular; the plurality of extrusion seats are encircled into a circle and are encircled outside the mounting ring; the adjusting piece is connected between the mounting ring and the extrusion seat.

Preferably, the adjusting piece comprises a bearing block, a rubber pad, a tightening frame, a guide rod, an adjusting block, a tightening block, a first spring and a second spring; the jacking frame is cuboid, a sliding cavity is arranged in the jacking frame, and one end of the sliding cavity is provided with a through hole; one end of the guide rod is fixed on the tightening frame, and the other end of the guide rod extends out of the sliding cavity; the adjusting block is sleeved on the guide rod in a sliding manner and slides in the sliding cavity; the jacking block is sleeved at one end of the guide rod in a sliding manner and slides in the sliding cavity; the first spring and the second spring are sleeved on the guide rod and respectively extrude two sides of the adjusting block; the bearing block is in a quarter-cylinder shape and is fixed on two sides of one end of the tightening frame, which is far away from the tightening block; the rubber pad is fixed on the cylindrical curved surface of the bearing block.

Preferably, the extrusion seat comprises a baffle plate, a spring plate and a friction edge; the baffle is arc-shaped; the spring plates are fixed at two ends of the inner wall of the baffle; the two ends of the outer wall of the baffle are concavely provided with friction grooves, and a friction edge is formed between every two adjacent friction grooves.

Preferably, the pipe inspection ring comprises a shell, a spiral pipe, a first screw, an extrusion plate and a paper plate; the shell is tubular; the screw pipe is fixed on the shell by a bolt; the first screw rod is arranged in the screw pipe in a penetrating way and is connected by threads; the extrusion plate is connected with one end of the first screw rod extending into the shell through threads; a plurality of paperboards are bonded into a circle; the pressing plate presses the paper board outside the detected pipeline.

Preferably, the water spraying piece comprises a positioning plate, a filter screen, a connecting pipe, a reinforcing seat, a water inlet cover, a fixing plate, a water spraying pipe and a shell; the shell is cylindrical, a water storage cavity is arranged on the shell, and a water outlet hole penetrates through the side wall of the shell; the connecting pipe is fixed at one end of the shell; the filter screen is fixed at the bottom of the inner cavity of the connecting pipe; the positioning plate is fixed at the outer side of the lower part of the connecting pipe and connected to the inner side of the top of the shell; the reinforcing seat is fixed on the outer side of the connecting pipe and connected to the outer side of the top of the shell; the fixed plate is fixed at the outlet of the water outlet hole; the water spray pipe penetrates through the water outlet hole and is connected to the fixing plate through threads; the water inlet cover is connected to one end of the water spray pipe extending into the water outlet hole through threads.

The invention has the following advantages:

(1) the support base is supported on the inner wall of the pipeline to be inspected, and the support tube extends along the inner cavity of the pipeline to be inspected. Water enters the extension tube and the support tube from the water pipe and flows into the water spraying part finally, the water is sprayed onto the side wall of the pipeline from the side wall of the water spraying part, if the side wall of the pipeline leaks water, the water is sprayed out from the water leaking point position and splashed onto the pipeline inspection ring, and the water at the corresponding position of the pipeline inspection ring is sprayed and wetted by the water, so that the water leaking point position of the pipeline is determined, the accurate detection on the sealing performance of the pipeline is realized, and the water leaking point position of the pipeline is timely searched;

the supporting tube is arranged in the inner cavity of the pipeline along the axial direction of the pipeline to be inspected. Promote the telescopic link, the telescopic link promotes an installation section of thick bamboo, and an installation section of thick bamboo drives the body, and the body drives the stay tube, and the stay tube slides along the inner chamber that is detected the pipeline, and the stay tube drives the target position department that is detected that the water spray removed the pipeline.

According to the detected position of the pipeline, the telescopic rod is screwed in or screwed out of the installation barrel, the axial length of the telescopic rod and the axial length of the installation barrel are adjusted, the position of the supporting pipe is adjusted, the position of the water spraying piece is adjusted, the water spraying piece is conveniently adjusted to the detected position of the pipeline, and the pipeline detection with various lengths is met. By adjusting the length of the telescopic pipe, the inspection requirements of pipelines with various lengths are met.

Drawings

FIG. 1 is a schematic view of the pipeline inspection device of the present invention.

Figure 2 is a schematic view of a telescopic tube of the invention.

Fig. 3 is a schematic view of the support seat of the present invention.

Fig. 4 is a schematic view of an adjustment member of the present invention.

FIG. 5 is a schematic view of the extrusion base of the present invention.

FIG. 6 is a schematic view of the pipe inspection collar of the present invention.

Fig. 7 is a schematic view of the sprinkler of the present invention.

1-a water pipe; 2-a telescopic pipe; 21-an end plate; 22-rubber ring; 23-mounting the barrel; 24-a telescopic rod; 25-a fixed seat; 26-a connecting ball; 27-a tube body; 3-supporting a tube; 4-a support seat; 41-mounting ring; 42-a pressing seat; 421-a baffle plate; 422-spring plate; 423-rubbing edge; 43-an adjustment member; 431-a carrier block; 432-rubber pad; 433-a tightening frame; 434-a guide bar; 435-adjusting block; 436-a puller block; 437-first spring; 438-a second spring; 5-pipeline inspection ring; 51-shell; 52-coil; 53-first screw; 54-a stripper plate; 55-paperboard; 6-water spraying piece; 61-a positioning plate; 62-a filter screen; 63-connecting pipe; 64-a reinforcement seat; 65-a water inlet cover; 66-fixing plate; 67-water spray pipe; 68-housing.

Detailed Description

The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

Examples

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the invention is further described with reference to the figures and the specific embodiments.

The pipeline inspection device of the present invention will be described in detail with reference to fig. 1 to 7.

Referring to fig. 1, the pipeline detection device of the present application includes a water pipe 1, an extension pipe 2, a support pipe 3, a support seat 4, a pipeline inspection ring 5 and a water spraying member 6. The water spraying piece 6 and the extension tube 2 are respectively coaxially connected with the two ends of the support tube 3 by bolts and communicated with the inner cavity of the support tube 3. The support base 4 is fixed to the outside of the support tube 3 by bolts. The water pipe 1 is communicated with the water inlet of the telescopic pipe 2.

In use, the support 4 is supported on the inner wall of the pipeline being inspected and the support tube 3 extends along the lumen of the pipeline being inspected. Water enters into flexible pipe 2 and stay tube 3 from water pipe 1, flow at last in water spray 6, water sprays the lateral wall of pipeline from the lateral wall that water spray 6 followed on, if the lateral wall of pipeline leaks, then water sprays away from the point location of should leaking water and splashes to pipeline inspection circle 5 on, the wetting by water spraying of the relevant position department of pipeline inspection circle 5, thereby confirm the point location of leaking of pipeline, the realization is to the accurate detection of the leakproofness of pipeline, the point location of leaking of pipeline is in time investigated and located. By adjusting the length of the telescopic pipe, the inspection requirements of pipelines with various lengths are met.

Referring to fig. 2, the telescopic tube 2 comprises an end plate 21, a rubber ring 22, a mounting tube 23, a telescopic rod 24, a fixed seat 25, a connecting ball 26 and a tube body 27.

The tube body 27 is a circular tube with a hollow inner cavity, and one end of the tube body 27 extends into the support tube 3 and is connected with the support tube by screw threads. The end plate 21 is circular and the end plate 21 is integrally connected to the end of the tube 27 and pressed against the inner wall of the support tube 3. The central portion of the end plate 21 is circular and communicates with the interior cavity of the tube 27. The end plate 21 is closely attached to the inner wall of the support tube 3, so that water is prevented from leaking from a gap between the end plate 21 and the support tube 3, and the sealing property is improved.

The rubber ring 22 is annular, and an annular seal groove is concavely provided at the end of the support tube 3, and the rubber ring 22 is located in the seal groove. The rubber ring 22 is squeezed between the tube body 27 and the support tube 3.

The mounting tube 23 is tubular, and the mounting tube 23 is fixed to the outer wall of the pipe body 27 by bolts and is located outside the support pipe 3. The mounting tube 23 extends in the axial direction of the tube body 27. The telescopic rod 24 is connected to the mounting cylinder 23 by screw threads. The extension rod 24 can be screwed into or out of the mounting tube 23 as needed, and the length of the extension rod 24 extending to the outside of the mounting tube 23 can be adjusted. The fixing seat 25 is circular, and the fixing seat 25 is fixed in the water inlet of the pipe body 27 by bolts. The connecting ball 26 is spherical, and the connecting ball 26 is pivoted in the fixing seat 25.

In use, the support tube 3 is inserted into the lumen of the tube in the axial direction of the tube to be inspected. Promote telescopic link 24, telescopic link 24 promotes an installation section of thick bamboo 23, and an installation section of thick bamboo 23 drives body 27, and body 27 drives stay tube 3, and stay tube 3 slides along the inner chamber that is detected the pipeline, and stay tube 3 drives the target position department that is detected that water spray 6 removed the pipeline.

According to the detected position of the pipeline, the telescopic rod 24 is screwed in or out of the installation cylinder 23, the axial lengths of the telescopic rod 24 and the installation cylinder 23 are adjusted, the position of the supporting pipe 3 is adjusted, the position of the water spraying piece 6 is adjusted, the water spraying piece 6 is conveniently adjusted to the detected position of the pipeline, and the pipeline detection with various lengths is met.

The rubber ring 22 seals the gap between the pipe body 27 and the support pipe 3, prevents water from leaking from the joint between the pipe body 27 and the support pipe 3, and improves the sealing performance.

For different use scenes, the position and the direction of the pipeline detection device need to be adjusted, so that the pipeline can be conveniently checked. The direction of the water pipe 1 needs to be adjusted accordingly. The water pipe 1 is bonded to the connection ball 26. The water pipe 1 is a plastic hose and can be bent as required. When the pipe body 27 is rotated, the water pipe 1 pulls the connecting ball 26, and the connecting ball 26 rotates relative to the fixed seat 25, so that the position and the direction of the water pipe 1 relative to the pipe body 27 are adjusted, and the requirements of various use scenes are met.

Referring to fig. 3, the support seat 4 includes a mounting ring 41, a pressing seat 42, and an adjusting member 43. The mounting ring 41 is annular. The pressing bases 42 are arc-shaped, and a plurality of the pressing bases 42 surround the mounting ring 41 in a circular shape. The adjusting member 43 is bolted between the mounting ring 41 and the pressing base 42.

When in use, the supporting seat 4 is arranged in the detected pipeline in a penetrating way. According to the size of the inner cavity of the pipeline, the adjusting piece 43 is lengthened or shortened, and the adjusting piece 43 drives the extrusion seat 42 to be pressed on the inner wall of the pipeline, so that the supporting seat 4 is pressed on the inner wall of the pipeline.

Referring to fig. 4, the adjusting member 43 includes a bearing block 431, a rubber pad 432, a tightening frame 433, a guide rod 434, an adjusting block 435, a tightening block 436, a first spring 437, and a second spring 438.

The tightening frame 433 is a rectangular parallelepiped, a rectangular sliding cavity is provided in the tightening frame 433, and a through hole is provided at one end of the sliding cavity. The guide rod 434 is a circular rod shape, one end of the guide rod 434 is fixed to the tightening frame 433 by a screw connection, and the other end of the guide rod 434 protrudes from an open end of the sliding chamber. The guide rod 434 extends in the axial direction of the slide chamber. The sliding chamber is rectangular. The adjusting block 435 is rectangular, the adjusting block 435 is slidably sleeved on the guide rod 434, and the adjusting block 435 is slidably arranged in the sliding cavity. The tightening block 436 slidably fits over an end of the guide rod 434 and slides within the sliding cavity. The tightening block 436 has a rectangular parallelepiped shape.

The first spring 437 and the second spring 438 are sleeved on the guide rod 434 and respectively press two sides of the adjusting block 435. The second spring 438 is compressed between the adjustment block 435 and the knock-up frame 433. The first spring 437 is compressed between the adjustment block 435 and the tightening block 436.

The bearing blocks 431 are quarter-cylindrical, and two bearing blocks 431 are respectively fixed on two sides of one end of the tightening frame 433, which is far away from the tightening block 436, by bolts. The rubber pad 432 is made of rubber material, and the rubber pad 432 is fixed on the cylindrical curved surface of the bearing block 431 by bolts.

In use, the pressing base 42 is pressed against the inner wall of the detected pipeline, and the pressing base 42 presses the tightening frame 433 and the rubber pad 432 inwards after being pressed by the pipeline. The tight frame 433 in top drives the guide bar 434, and the guide bar 434 slides along the inner chamber of the tight piece 436 in top, and the tight frame 433 in top slides along the outside of the tight piece 436 in top simultaneously to the tight piece 436 in top slides the inner chamber of the tight frame 433 in top, and the tight piece 436 in top and the tight frame 433 in top's longitudinal length reduces.

The first spring 437 and the second spring 438 are compressed to deform, so as to relieve the pressing force and play a role in buffering protection. Meanwhile, the first spring 437 and the second spring 438 generate reverse acting force to the tightening frame 433, the tightening frame 433 drives the bearing block 431 and the rubber pad 432, and the bearing block 431 and the rubber pad 432 are tightly pressed on the extrusion seat 42 to support the extrusion seat 42. Meanwhile, the rubber pad 432 is deformed by extrusion to relieve the extrusion force, so that the buffer protection effect is achieved. The pressing base 42 is pressed against the inner wall of the pipe to achieve the position fixing.

Referring to fig. 5, the pressing base 42 includes a blocking plate 421, a spring plate 422, and a friction rib 423. The shield 421 is circular arc-shaped. The spring plate 422 is arc-shaped, and the spring plate 422 is fixed at both ends of the inner wall of the baffle 421 by bolts. The spring plate 422 is made of spring steel. The two ends of the outer wall of the baffle 421 are concavely provided with friction grooves, and the side walls of the friction grooves are cylindrical curved surfaces which are sunken into the baffle 421. A friction rib 423 is formed between adjacent two of the friction grooves. The plurality of friction ridges 423 are distributed along the arc direction of the blocking plate 421.

The friction grooves and the friction ridges 423 are spaced apart. When baffle 421 presses against the inner wall of the pipe, a frictional force is generated between baffle 421 and the inner wall of the pipe. Because the friction grooves and the friction ridges 423 form an uneven surface, friction between the baffle 421 and the inner wall of the pipeline is increased, friction between the extrusion seat 42 and the pipeline is improved, and installation stability is improved.

Referring to fig. 7, the water spray member 6 includes a positioning plate 61, a filter 62, a connection pipe 63, a reinforcing seat 64, a water inlet cover 65, a fixing plate 66, a water spray pipe 67, and a housing 68. The housing 68 is cylindrical, a water storage cavity is formed in the housing 68, the water storage cavity is cylindrical, and a water outlet hole penetrates through the side wall of the housing 68. The water outlet is truncated cone-shaped, penetrates through the side wall of the shell 68 and is communicated with the water storage cavity. The plurality of outlet holes are distributed along the circumferential direction of the housing 68.

The connection pipe 63 is a circular pipe shape, and the connection pipe 63 penetrates the housing 68 at one end of the housing 68 in the axial direction of the housing 68 and is fixed with a bolt. The screen 62 is circular and the screen 62 is screwed to the bottom of the inner cavity of the connection tube 63. The screen 62 is within a housing 68. Circular filter holes are perforated in the filter screen 62.

The positioning plate 61 is fixed to the outside of the lower portion of the connecting pipe 63 with bolts, and the positioning plate 61 is bolted to the inside of the top of the housing 68. The reinforcement base 64 is fixed to the outside of the connection pipe 63 by bolts, and the reinforcement base 64 is bolted to the outside of the top of the housing 68.

The fixing plate 66 is a circular thin plate, and the fixing plate 66 is fixed at the outlet of the water outlet hole by bolts. The end of the outlet opening near the outer edge of the housing 68 is smaller in size than the end facing away from the outer edge of the housing 68. The spray pipe 67 is a circular pipe, the spray pipe 67 is arranged in the water outlet hole in a penetrating way, and the spray pipe 67 is connected to the fixing plate 66 through screw threads.

The inlet shroud 65 is threaded onto the end of the spout 67 that extends into the outlet bore. The water inlet cover 65 is in a circular truncated cone shape, the water inlet cover 65 is made of rubber materials, and one end, with a larger port size, of the water inlet cover 65 deviates from the water spray pipe 67. The side wall of the water inlet cover 65 is pressed against the side wall of the water outlet hole.

When in use, the water outlet of the support tube 3 is connected to the connecting tube 63 by screw threads. Water flows out of the support pipe 3 and then enters the connecting pipe 63, and particles in the water are blocked by the filter screen 62, so that the particles in the water are filtered.

Water enters the water storage cavity, then enters the water spraying pipe 67 through the water inlet cover 65, the water is pumped into the water pipe 1 through the water pump, when the water amount is large and the pressure is enough, the water can be sprayed out from the water spraying pipe 67, the water outlet of the water spraying pipe 67 faces the paper board 55, and the water is sprayed onto the paper board 55. When one or more of the paper boards 55 are sprayed with water, the corresponding position of the pipeline is broken and water leakage is caused, and the tightness of the pipeline is checked.

Referring to fig. 6, the pipe inspection ring 5 includes a housing 51, a screw 52, a first screw 53, a pressing plate 54, and a paper plate 55. The shell 51 is tubular. The coil 52 is in the form of a circular tube, and the coil 52 is fixed to the case 51 by bolts. The coil 52 extends in the radial direction of the shell 51, and a plurality of coils 52 are distributed in the circumferential direction of the shell 51. The first screw 53 is inserted into the screw tube 52 and is connected by screw threads. The pressing plate 54 is screwed to the end of the first screw 53 that protrudes into the housing 51. A plurality of paper sheets 55 are bonded in a circular shape. The pressing plate 54 presses the paper sheet 55 against the outside of the pipe to be tested.

In use, a plurality of sheets 55 are bonded together to form a ring structure that is wrapped around the outside of the pipe being tested. According to the size of the detected pipeline, the number of the paperboards 55 is adjusted, so that the size of the enclosed circular ring is adjusted, and the wrapping and inspection of the outer parts of pipelines with various sizes are realized.

The shell 51 is sleeved on the outer side of the detected pipeline, the first screw 53 is rotated, the first screw 53 drives the extrusion plate 54, the paperboard 55 is pressed tightly on the outer wall of the detected pipeline by the extrusion plate 54, and therefore the paperboard 55 is attached to the pipeline tightly, and the phenomenon that the paperboard 55 slides to influence the detection accuracy is avoided.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A pipeline detection device is characterized by comprising a water pipe (1), an extension pipe (2), a support pipe (3), a support seat (4), a pipeline inspection ring (5) and a water spraying piece (6);

the water spraying piece (6) and the extension pipe (2) are respectively coaxially connected to two ends of the support pipe (3) and communicated with the inner cavity of the support pipe (3); the supporting seat (4) is fixed outside the supporting tube (3); the water pipe (1) is communicated with the water inlet of the telescopic pipe (2);

the telescopic pipe (2) comprises an end plate (21), a rubber ring (22), an installation cylinder (23), a telescopic rod (24), a fixed seat (25), a connecting ball (26) and a pipe body (27);

the tube body (27) is a round tube with a hollow inner cavity, and one end of the tube body (27) extends into the support tube (3) and is connected with the support tube by threads;

the end plate (21) is integrally connected with the end part of the pipe body (27) and extruded on the inner wall of the supporting pipe (3);

the rubber ring (22) is squeezed between the tube body (27) and the support tube (3);

the mounting cylinder (23) is fixed on the outer wall of the pipe body (27) and is positioned outside the supporting pipe (3);

the telescopic rod (24) is connected to the mounting cylinder (23) by threads;

the fixed seat (25) is fixed in the water inlet of the pipe body (27) by bolts;

the connecting ball (26) is pivoted in the fixed seat (25).

2. The pipeline inspection device according to claim 1, wherein the support base (4) comprises a mounting ring (41), a pressing base (42) and an adjusting piece (43);

the mounting ring (41) is annular;

the extrusion seats (42) are encircled into a circle and surround the outer side of the mounting ring (41);

the adjusting piece (43) is connected between the mounting ring (41) and the extrusion seat (42).

3. The pipeline inspection device according to claim 2, wherein the adjusting member (43) comprises a bearing block (431), a rubber pad (432), a tightening frame (433), a guide rod (434), an adjusting block (435), a tightening block (436), a first spring (437) and a second spring (438);

the tightening frame (433) is cuboid, a sliding cavity is arranged in the tightening frame (433), and one end of the sliding cavity is provided with a through hole;

one end of the guide rod (434) is fixed on the tightening frame (433) and the other end of the guide rod extends out of the sliding cavity;

the adjusting block (435) is sleeved on the guide rod (434) in a sliding manner and slides in the sliding cavity;

the jacking block (436) is sleeved at one end of the guide rod (434) in a sliding way and slides in the sliding cavity;

the first spring (437) and the second spring (438) are sleeved on the guide rod (434) and respectively extrude two sides of the adjusting block (435);

the bearing block (431) is in a quarter-cylinder shape and is fixed on two sides of one end of the tightening frame (433) which is far away from the tightening block (436);

the rubber pad (432) is fixed on the cylindrical curved surface of the bearing block (431).

4. The pipeline inspection device of claim 2, wherein the extrusion seat (42) includes a stop plate (421), a spring plate (422), and a friction rib (423);

the baffle (421) is arc-shaped;

the spring plates (422) are fixed at two ends of the inner wall of the baffle plate (421);

two ends of the outer wall of the baffle (421) are concavely provided with friction grooves, and a friction edge (423) is formed between every two adjacent friction grooves.

5. The pipeline inspection device according to claim 1, wherein the pipeline inspection ring (5) comprises a shell (51), a coil (52), a first screw (53), a pressing plate (54) and a paper plate (55);

the shell (51) is tubular;

the screw pipe (52) is fixed on the shell (51) by a bolt;

the first screw (53) is arranged in the screw pipe (52) in a penetrating way and is connected by threads;

the extrusion plate (54) is connected with one end of the first screw rod (53) extending into the shell (51) by screw threads;

a plurality of paper plates (55) are bonded into a circular shape; the pressing plate (54) presses the paper board (55) to the outside of the detected pipeline.

6. The pipeline detection device according to claim 1, wherein the water spraying member (6) comprises a positioning plate (61), a filter screen (62), a connecting pipe (63), a reinforcing seat (64), a water inlet cover (65), a fixing plate (66), a water spraying pipe (67) and a shell (68);

the shell (68) is cylindrical, a water storage cavity is arranged on the shell (68), and a water outlet hole penetrates through the side wall of the shell (68);

the connecting pipe (63) is fixed at one end of the shell (68); the filter screen (62) is fixed at the bottom of the inner cavity of the connecting pipe (63);

the positioning plate (61) is fixed at the outer side of the lower part of the connecting pipe (63) and connected to the inner side of the top of the shell (68);

the reinforcing seat (64) is fixed on the outer side of the connecting pipe (63) and connected to the outer side of the top of the shell (68);

the fixed plate (66) is fixed at the outlet of the water outlet hole;

the water spray pipe (67) penetrates through the water outlet hole and is connected to the fixing plate (66) through threads;

the water inlet cover (65) is screwed to the end of the water spray pipe (67) extending into the water outlet hole.