Pipeline quality detection device for water conservancy project

Abstract

The invention relates to the technical field of pipeline quality detection, in particular to a water conservancy project pipeline quality detection device which comprises a base, a supporting frame is fixed to the base, two adjusting seats are arranged on the supporting frame, each adjusting seat is provided with a clamping jaw assembly used for clamping and fixing a pipeline, one adjusting seat is fixed to the supporting frame, and the other adjusting seat is fixed to the supporting frame. The other adjusting seat is arranged on the supporting frame in a sliding mode and is driven by a driving mechanism arranged on the supporting frame to achieve horizontal reciprocating motion. In the intermittent conveying process of the pipeline, the other clamping jaw assembly is used for clamping the pipeline when the clamping jaw assembly loosens the pipeline every time, the position deviation of the pipeline can be eliminated, and therefore the detection datum point cannot deviate every time the pipeline is conveyed forwards, the detection accuracy is improved, and the detection efficiency is improved. Multiple sections of detection data can be aligned, so that the influence of defect positioning error amplification on the detection precision is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline quality detection, in particular to a pipeline quality detection device for water conservancy projects. Background Art

[0002] During the manufacturing or service life inspection of water conservancy project pipelines, it is often necessary to perform non-destructive testing (such as ultrasonic testing and X-ray imaging) on ​​the pipelines in sections. Since some pipelines are long and heavy, they need to be intermittently conveyed by a clamping mechanism to meet the coverage requirements of the inspection stations. The existing typical conveying methods are as follows: Traditional clamping jaw intermittent conveying process: (1) Clamping stage: The clamping jaw closes and clamps one end of the pipeline; (2) Conveying stage: The clamping jaw is pushed by a driving mechanism such as a cylinder or a screw, driving the pipeline to move forward a fixed distance; (3) Release stage: The clamping jaw releases the pipeline and returns to the starting position; (4) Cycling stage: Repeat the above actions until the entire section of the pipeline is covered.

[0003] Although this mode realizes the automated transportation of water pipelines, there are significant problems in the water conservancy project pipeline inspection scenario: pipeline reset offset: after the clamps are released, the pipeline is prone to axial movement or radial rolling due to factors such as its own weight inertia, uneven friction of the support surface, and pipeline roundness error. As a result, when the pipeline is clamped again and transported forward, the inspection reference point is offset, multiple sections of inspection data cannot be aligned, and the defect positioning error is amplified. For this reason, we provide a pipeline quality inspection device for water conservancy projects to solve the above-mentioned problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a pipeline quality detection device for water conservancy projects to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A pipeline quality inspection device for water conservancy projects includes a base, a support frame fixed to the base, two adjustment seats provided on the support frame, each of the adjustment seats provided with a clamping claw assembly for clamping and fixing the pipeline, one of the adjustment seats is fixed to the support frame, and the other adjustment seat is slidably provided on the support frame and is driven by a driving mechanism provided on the support frame to achieve horizontal reciprocating movement; The two clamping jaw assemblies cooperate with each other through a linkage structure. When the clamping jaw assembly on one of the adjustment seats clamps the pipeline, the clamping jaw assembly on the other adjustment seat loosens the pipeline.

[0006] A pipeline quality inspection device for water conservancy projects as described above: the clamping jaw assembly includes a V-shaped frame fixed on an adjustment seat, two clamping jaws are hinged on the top of the V-shaped frame, a screw rod is rotatably provided on the V-shaped frame, a sleeve is threadedly engaged with the screw rod and is slidably engaged with the inside of the screw rod, a connecting rod is provided between the sleeve and the clamping jaw, and the two ends of the connecting rod are respectively hinged to the clamping jaw and the sleeve.

[0007] As described above, a pipeline quality inspection device for water conservancy projects: a main shaft is rotatably arranged on the support frame, a first gear mechanism is used to transmit transmission between the screw rod on one of the clamping jaw assemblies and the main shaft, and a second gear mechanism is used to transmit transmission between the screw rod on the other clamping jaw assembly and the main shaft, and when the main shaft rotates, the screw rod will be driven to rotate synchronously.

[0008] As described above, a pipeline quality inspection device for water conservancy projects: guide columns fixed on the support frame are respectively provided on both sides of the main shaft, a main shaft hole and a guide hole are opened on the adjustment seat, the main shaft is arranged through the main shaft hole, and the guide column is arranged through the guide hole.

[0009] As described above, in the pipeline quality inspection device for water conservancy projects, a motor is fixed on the support frame, and the output end of the motor is connected to the main shaft through a coupling to drive the main shaft to rotate.

[0010] As described above, in the pipeline quality inspection device for water conservancy projects, the first gear mechanism includes a first bevel gear fixed on the main shaft and a first bevel gear ring fixed on the screw rod, and the first bevel gear is meshed with the first bevel gear ring.

[0011] As described above, a pipeline quality inspection device for water conservancy projects: the second gear mechanism includes a second bevel gear rotatably mounted on an adjusting seat and slidably engaged on the main shaft through a sliding assembly, and a second bevel gear ring fixed on the screw rod. The second bevel gear is engaged with the second bevel gear ring, and the sliding assembly allows the second bevel gear to slide on the main shaft and rotate synchronously with the main shaft.

[0012] As described above, a pipeline quality inspection device for water conservancy projects: the sliding assembly includes a sleeve fixed on the second bevel gear, the second bevel gear and the sleeve are movably mounted on the main shaft, the sleeve is rotatably mounted on the adjustment seat, the inner wall of the sleeve is provided with a keyway, a key block is fixed on the main shaft, and the key block is movably embedded and clamped in the keyway.

[0013] As described above, in a pipeline quality detection device for water conservancy projects, the driving mechanism includes a cylinder fixed on a support frame, an output end of the cylinder is provided with a piston rod, and the piston rod is fixed to one of the adjustment seats.

[0014] In the above-mentioned pipeline quality inspection device for water conservancy projects, a non-slip sheet is fixedly adhered to the surface of the clamping jaw.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: when in use, two adjustment seats are provided on the support frame, and each adjustment seat is provided with a clamping claw assembly for clamping and fixing the pipeline, and one of the adjustment seats is fixed on the support frame, and the other adjustment seat is slidably provided on the support frame and can be driven by a driving mechanism to realize horizontal reciprocating movement. In addition, when the clamping claw assembly on one of the adjustment seats clamps the pipeline, the clamping claw assembly on the other adjustment seat releases the pipeline, that is, when the pipeline is inspected, one clamping claw assembly is released, and the other clamping claw assembly closes and clamps one end of the pipeline, driving the pipeline to move forward a fixed distance, and then the pipeline is released while one clamping claw assembly clamps the pipeline, and the other clamping claw assembly returns to the starting position to clamp the pipeline again, and at the same time one clamping claw assembly releases the pipeline, and the above actions are repeated until the entire section of the pipeline is covered; Therefore, the present invention can eliminate positional deviation of the pipeline by using another clamping jaw assembly to clamp the pipeline each time the clamping jaw assembly releases the pipeline during intermittent transportation of the pipeline, so that the detection reference point will not be offset each time the pipeline is transported forward, and multiple segments of detection data can be aligned, thereby avoiding the amplification of defect positioning errors and affecting the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a pipeline quality inspection device for water conservancy projects from a first perspective.

[0017] Figure 2 This is a schematic diagram of the overall structure of a pipeline quality inspection device for water conservancy projects from a second perspective.

[0018] Figure 3 A pipeline quality detection device for water conservancy projects Figure 2 Schematic diagram of the decomposed structure.

[0019] Figure 4 A pipeline quality detection device for water conservancy projects Figure 3 Schematic diagram of the decomposed structure.

[0020] Figure 5 The figure is a schematic structural diagram of a clamping jaw assembly on an adjustment seat of a pipeline quality inspection device for water conservancy projects.

[0021] Figure 6 This is a structural schematic diagram of a clamping jaw assembly on another adjustment seat of a pipeline quality inspection device for water conservancy projects.

[0022] Figure 7It is a local explosion structure schematic view of a pipeline quality detection device for water conservancy projects.

[0023] Figure 8 It is a local explosion structure schematic view of a pipeline quality detection device for water conservancy projects. Figure 7

[0024] Figure 9 It is a structure schematic view of another view of a pipeline quality detection device for water conservancy projects. Figure 8

[0025] Figure 10 It is a local explosion structure schematic view of a pipeline quality detection device for water conservancy projects. Figure 9

[0026] In the figure: 1, base; 2, support frame; 3, main shaft; 4, motor; 5, adjusting seat; 6, guide column; 7, air cylinder; 8, piston rod; 9, U-shaped frame; 10, clamping jaw; 11, pipeline; 12, lead screw; 13, sliding sleeve; 14, connecting rod; 15, first bevel gear; 16, first bevel gear ring; 17, second bevel gear; 18, second bevel gear ring; 19, sleeve; 20, key groove; 21, key block; 22, main shaft hole; 23, guide hole. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all.

[0028] Please refer to Figures 1-10 As an embodiment of the present application, a pipeline quality detection device for water conservancy projects comprises a base 1, the base 1 is fixed with a support frame 2, the support frame 2 is provided with two adjusting seats 5, each adjusting seat 5 is provided with a clamping jaw assembly for clamping and fixing the pipeline 11, one adjusting seat 5 is fixed on the support frame 2, and the other adjusting seat 5 is slidingly arranged on the support frame 2 and driven to move horizontally reciprocatingly by a driving mechanism arranged on the support frame 2. The two clamping jaw assemblies are matched through linkage structure, when the clamping jaw assembly on one adjusting seat 5 clamps the pipeline 11, the clamping jaw assembly on the other adjusting seat 5 releases the pipeline 11.

[0029] ​​​In the embodiment, two adjusting seats 5 are arranged on the support frame 2, and each adjusting seat 5 is provided with a clamping jaw assembly for clamping and fixing the pipeline 11. One adjusting seat 5 is fixed on the support frame 2, and the other adjusting seat 5 is slidingly arranged on the support frame 2 and can be driven to move horizontally reciprocatingly by a driving mechanism. In addition, when the clamping jaw assembly on one adjusting seat 5 clamps the pipeline 11, the clamping jaw assembly on the other adjusting seat 5 releases the pipeline 11. That is, when the pipeline 11 is detected, one clamping jaw assembly is released, and the other clamping jaw assembly clamps one end of the pipeline 11 and drives the pipeline 11 to move forward by a fixed distance. Then, the pipeline 11 is released, and one clamping jaw assembly clamps the pipeline 11 again, and the other clamping jaw assembly is retracted to the initial position to clamp the pipeline 11 again. At the same time, one clamping jaw assembly is released, and the above-mentioned action is repeated until the entire pipeline 11 is covered.

[0030] As a further scheme of the present application, the clamping jaw assembly comprises a U-shaped frame 9 fixed on the adjusting seat 5, two clamping jaws 10 hingedly connected to the top of the U-shaped frame 9, a lead screw 12 rotatably arranged on the U-shaped frame 9, a sliding sleeve 13 slidingly and detachably arranged in the lead screw 12, and a connecting rod 14 arranged between the sliding sleeve 13 and the clamping jaw 10 and hingedly connected to the clamping jaw 10 and the sliding sleeve 13 at both ends.

[0031] In the embodiment, when the lead screw 12 is rotated, the sliding sleeve 13 moves axially along the lead screw 12 due to its sliding and detachable arrangement in the lead screw 12 (to prevent itself from rotating), and then drives the two clamping jaws 10 to open and close synchronously around the hinge points through the connecting rod 14. When the sliding sleeve 13 moves upward, the lower end of the clamping jaw 10 is pulled close by the connecting rod 14, and the upper end of the clamping jaw 10 is closed to clamp the pipeline 11. When the sliding sleeve 13 moves downward, the upper end of the clamping jaw 10 is opened to release the pipeline 11.

[0032] As a further scheme of the present application, a main shaft 3 is rotatably arranged on the support frame 2, the lead screw 12 of one clamping jaw assembly is in transmission with the main shaft 3 through a first gear mechanism, and the lead screw 12 of the other clamping jaw assembly is in transmission with the main shaft 3 through a second gear mechanism. When the main shaft 3 is rotated, the lead screw 12 is synchronously rotated.

[0033] In the embodiment, by rotating the main shaft 3, the lead screw 12 of one clamping jaw assembly is in transmission with the main shaft 3 through a first gear mechanism, and the lead screw 12 of the other clamping jaw assembly is in transmission with the main shaft 3 through a second gear mechanism. Thus, the lead screws 12 of the two clamping jaw assemblies can be synchronously driven to rotate. When the main shaft 3 rotates forward, one clamping jaw assembly is clamped, and the other clamping jaw assembly is released. When the main shaft 3 rotates reversely, one clamping jaw assembly is released, and the other clamping jaw assembly is clamped.

[0034] As a further solution of the present invention, guide columns 6 fixed on the support frame 2 are respectively provided on both sides of the main shaft 3, and a main shaft hole 22 and a guide hole 23 are opened on the adjustment seat 5. The main shaft 3 is set through the main shaft hole 22, and the guide column 6 is set through the guide hole 23.

[0035] In this embodiment, the inner diameter of the main shaft hole 22 is adapted to the outer diameter of the main shaft 3, ensuring that the main shaft 3 can provide the adjustment seat 5 with the possibility of axial movement. The inner diameter of the guide hole 23 is adapted to the outer diameter of the guide column 6, and is sleeved on the guide column 6 to ensure that the sliding adjustment seat 5 can only move smoothly and horizontally back and forth along the axis direction of the main shaft 3 and the guide column 6, that is, the pipeline transportation direction, thereby limiting other degrees of freedom.

[0036] As a further solution of the present invention, a motor 4 is fixed on the support frame 2, and an output end of the motor 4 is connected to the main shaft 3 through a coupling to drive the main shaft 3 to rotate.

[0037] In this embodiment, the motor 4 is the power source for the clamping action. The motor 4 is electrically connected to the external power supply through a wire. Starting the motor 4 drives the main shaft 3 to rotate and cooperates with the gear mechanism to control the synchronous opening and closing state switching of the two clamping jaws 10 of the clamping jaw assembly.

[0038] As a further solution of the present invention, the first gear mechanism includes a first bevel gear 15 fixed on the main shaft 3 and a first bevel gear ring 16 fixed on the screw rod 12 , and the first bevel gear 15 is meshed with the first bevel gear ring 16 .

[0039] In this embodiment, when the main shaft 3 rotates, it drives the first bevel gear 15 to rotate. The first bevel gear 15 is engaged with the first bevel gear ring 16. The rotation of the first bevel gear 15 drives the first bevel gear ring 16 to rotate. When the first bevel gear ring 16 rotates, it drives the screw 12 to rotate synchronously.

[0040] As a further solution of the present invention, the second gear mechanism includes a second bevel gear 17 rotatably mounted on the adjustment seat 5 and slidably engaged on the main shaft 3 through a sliding assembly, and a second bevel gear ring 18 fixed on the screw rod 12. The second bevel gear 17 is engaged with the second bevel gear ring 18, and the sliding assembly enables the second bevel gear 17 to slide on the main shaft 3 and to rotate synchronously with the main shaft 3.

[0041] In this embodiment, a second bevel gear 17 is added to the second gear mechanism, and the second bevel gear 17 is connected to the main shaft 3 through a sliding assembly. The second bevel gear 17 can rotate with the main shaft 3 to transmit torque while allowing itself to slide axially along the main shaft 3. It should be noted that the second bevel gear 17 has the same specifications as the first bevel gear 15 and is symmetrically distributed on the main shaft 3, that is, when the main shaft 3 rotates, the first bevel gear ring 16 and the second bevel gear ring 18 have opposite rotation directions relative to the main shaft 3. The design goal is: when the main shaft 3 drives the first bevel gear ring 16 on the screw rod 12 to rotate in a certain direction, the second bevel gear ring 18 on the other screw rod 12 rotates in the opposite direction, thereby realizing the two jaw assemblies to be clamped or loosened respectively.

[0042] As a further solution of the present invention, the sliding assembly includes a sleeve 19 fixed on the second bevel gear 17. The second bevel gear 17 and the sleeve 19 are both movably mounted on the main shaft 3. The sleeve 19 is rotatably mounted on the adjustment seat 5. A key groove 20 is provided on the inner wall of the sleeve 19. A key block 21 is fixed on the main shaft 3. The key block 21 is movably embedded in the key groove 20.

[0043] In this embodiment, the sliding assembly is a typical keyway or spline connection structure, the key block 21 is fixed to the main shaft 3, the keyway 20 is opened on the inner wall of the sleeve 19, and the key block 21 is embedded in the keyway 20, so that the sleeve 19 and the second bevel gear 17 fixed thereto can slide freely along the axial direction of the main shaft 3, but when the main shaft 3 rotates, the key block 21 can contact the side of the keyway 20, forcing the sleeve 19 and the second bevel gear 17 to rotate synchronously, thereby achieving a balance between power transmission and sliding functions.

[0044] As a further solution of the present invention, the driving mechanism includes a cylinder 7 fixed on the support frame 2 , and a piston rod 8 is provided at the output end of the cylinder 7 , and the piston rod 8 is fixed to one of the adjustment seats 5 .

[0045] In this embodiment, the cylinder 7 is electrically connected to an external power supply through a wire. Starting the cylinder 7 can drive the piston rod 8 to extend and retract, thereby moving the adjustment seat 5. The cylinder 7 is the power source that pushes the adjustment seat 5 and the clamping jaw assembly thereon to move horizontally back and forth, and is responsible for performing the step-by-step conveying task of the pipeline 11.

[0046] As a further solution of the present invention, an anti-slip sheet is fixedly adhered to the surface of the clamping jaw 10 .

[0047] In this embodiment, the anti-slip sheet increases the friction between the contact surface of the clamping jaw 10 and the pipe 11, preventing the pipe 11 from slipping or rotating inside the clamping jaw 10 during the clamping and conveying process, thereby improving the stability and reliability of clamping and conveying. At the same time, the anti-slip sheet is made of rubber, which is soft and elastic. That is, when the clamping jaw 10 on one clamping jaw assembly slowly releases the pipe 11, the elastic clamping jaw 10 of the anti-slip sheet still has a clamping effect on the pipe 11, so that the clamping jaw 10 will not immediately cancel the fixation of the pipe 11 when it is slowly opened, and thus the pipe 11 will not move axially or roll radially inside the clamping jaw 10, ensuring that the clamping jaw 10 on this clamping jaw assembly will not completely release the pipe 11 until the clamping jaw 10 on the other clamping jaw assembly clamps the pipe 11.

[0048] The working principle of this invention is: S1, initial state: an adjustment seat 5 near the drive mechanism is at the starting end of its stroke. The control system controls the starting motor 4, driving the main shaft 3 to rotate, which in turn drives the screw 12 via the second gear mechanism to rotate, causing the other clamping jaw assembly to clamp one end of the pipe 11. At the same time, the rotation of the main shaft 3 drives the screw 12 on one adjustment seat 5 to rotate in the opposite direction via the first gear mechanism, causing one clamping jaw assembly to be in a loose state. S2, conveying stage: The control system controls the cylinder 7 to start, pushing the adjustment base 5 connected to its output end to move horizontally along the main shaft 3 and the guide column 6 by a stepping distance. Since the clamping jaws on the other adjustment base 5 clamp the pipe 11, while the clamping jaws on one adjustment base 5 are released, the entire pipe 11 is driven by the clamping jaws on the other adjustment base 5 and moves forward synchronously by the stepping distance. S3, clamping switching stage: After the pipe 11 is moved into position and the detection of this section is completed, the control system starts the motor 4 again, reverses the main shaft 3, and the reverse rotation of the main shaft 3 drives the screw 12 to reverse, causing the other clamping jaw assembly to release the pipe 11. At the same time, the screw 12 on the adjustment seat 5 is driven in the opposite direction through the first gear mechanism, causing one clamping jaw assembly to clamp the pipe 11. S4, reset phase: The control system controls the cylinder 7 to retract, driving the other adjustment seat 5 and the other clamping jaw assembly on it to move synchronously to the starting position. Since the other clamping jaw assembly is now released, it will not hinder the retraction of the other clamping jaw assembly. The key point is that this operation is to "reset the clamping jaw position" and does not move the pipe 11 itself. During the retraction of the other clamping jaw assembly, the pipe 11 remains at the end of the conveying position. During the entire movement process, only the other clamping jaw assembly itself and the other adjustment seat 5 retract; S5, re-clamping preparation: After the other adjustment seat 5 has fully returned to the starting end, the system is ready for the next conveying cycle. At this point, the state becomes: one clamping jaw assembly is released, and the other clamping jaw assembly has returned to its initial position. Repeat step 2: start the cylinder 7 again to push the other clamping jaw assembly forward, which will drive the pipe 11 forward the same distance again. S6, loop execution: repeat steps S1 to S5 until the entire length of the pipeline 11 is stepped and transported and all segment detections are completed.

[0049] The above embodiments are exemplary rather than restrictive, so any technical solution that can be implemented in other specific forms without departing from the spirit or basic features of the present invention is included in the present invention.

Claims

1. A pipe quality detection device for water conservancy projects, comprising a base (1), characterized in that: A support frame (2) is fixed on the base (1). Two adjusting seats (5) are arranged on the support frame (2). A clamping jaw assembly is arranged on each adjusting seat (5) for clamping and fixing a pipe (11). One of the adjusting seats (5) is fixed on the support frame (2), and the other adjusting seat (5) is slidably arranged on the support frame (2) and is driven by a driving mechanism arranged on the support frame (2) to achieve horizontal reciprocating movement; The two clamping jaw assemblies are cooperated through a linkage structure. When the clamping jaw assembly on one of the adjusting seats (5) clamps the pipe (11), the clamping jaw assembly on the other adjusting seat (5) loosens the pipe (11).

2. A water conservancy project pipeline quality detection device according to claim 1, characterized in that: The clamping jaw assembly includes a U-shaped frame (9) fixed on the adjusting seat (5). Two clamping jaws (10) are hinged at the top of the U-shaped frame (9). A screw rod (12) is rotatably arranged on the U-shaped frame (9). A sliding sleeve (13) that is slidably clamped inside the screw rod (12) is in threaded cooperation with the screw rod (12). A connecting rod (14) is arranged between the sliding sleeve (13) and the clamping jaw (10). Two ends of the connecting rod (14) are respectively hinged to the clamping jaw (10) and the sliding sleeve (13).

3. A water conservancy project pipeline quality detection device according to claim 2, characterized in that: A main shaft (3) is rotatably arranged on the support frame (2). The screw rod (12) on one clamping jaw assembly is driven by a first gear mechanism between the screw rod (12) and the main shaft (3). The screw rod (12) on the other clamping jaw assembly is driven by a second gear mechanism between the screw rod (12) and the main shaft (3). When the main shaft (3) rotates, it will drive the screw rod (12) to rotate synchronously.

4. A water conservancy project pipeline quality detection device according to claim 3, characterized in that: Guide columns (6) fixed on the support frame (2) are respectively arranged on two sides of the main shaft (3). A main shaft hole (22) and a guide hole (23) are formed on the adjusting seat (5). The main shaft (3) penetrates through the main shaft hole (22). The guide column (6) penetrates through the guide hole (23).

5. A water conservancy project pipeline quality detection device according to claim 4, characterized in that: A motor (4) is fixed on the support frame (2). The output end of the motor (4) is connected to the main shaft (3) through a coupling to drive the main shaft (3) to rotate.

6. A water conservancy project pipeline quality detection device according to claim 3, characterized in that: The first gear mechanism includes a first bevel gear (15) fixed on the main shaft (3) and a first bevel gear ring (16) fixed on the screw rod (12). The first bevel gear (15) meshes with the first bevel gear ring (16).

7. A water conservancy project pipeline quality detection device according to claim 3, characterized in that: The second gear mechanism includes a second bevel gear (17) that is rotatably installed on the adjusting seat (5) and is slidably clamped on the main shaft (3) through a sliding component and a second bevel gear ring (18) fixed on the screw rod (12). The second bevel gear (17) meshes with the second bevel gear ring (18). The sliding component enables the second bevel gear (17) to slide on the main shaft (3) and rotate synchronously with the main shaft (3).

8. A water conservancy project pipeline quality detection device according to claim 7, characterized in that: The sliding assembly includes a sleeve (19) fixed on the second bevel gear (17), the second bevel gear (17) and the sleeve (19) are both movably sleeved on the main shaft (3), the sleeve (19) is rotatably mounted on the adjustment seat (5), a key groove (20) is provided on the inner wall of the sleeve (19), a key block (21) is fixed on the main shaft (3), and the key block (21) is movably embedded in the key groove (20).

9. The water conservancy project pipeline quality detection device according to claim 1, characterized in that: The driving mechanism comprises a cylinder (7) fixed on the support frame (2), an output end of the cylinder (7) is provided with a piston rod (8), and the piston rod (8) is fixed to another adjustment seat (5).

10. The water conservancy project pipeline quality detection device according to claim 2, characterized in that: An anti-slip sheet is fixedly adhered to the surface of the clamping jaw (10).

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