Land pipe pile joint welding seam flaw detection device

Abstract

The invention belongs to the technical field of onshore pile foundations, and particularly relates to an onshore tubular pile joint weld flaw detection device, which comprises: an annular clamp coaxially sleeved outside a tubular pile, the annular clamp being fixed to the tubular pile or vertically sliding along the tubular pile; the surrounding device is arranged at the bottom of the annular clamp in a sliding manner; the fixed end of the telescopic rod is hinged to the bottom of the surrounding device through a hinge seat, and the telescopic end of the telescopic rod is fixedly connected with a mounting plate quick-splicing assembly; the parallelism adjusting assembly is installed at the fixed end of the telescopic rod and used for adjusting the axis of the telescopic rod to be horizontal with the axis of the pipe pile; and the mounting plate is detachably connected to the mounting plate quick-splicing assembly, and the mounting plate is used for mounting a grinding device, a flaw detection device or a repair welding device. The device solves the problem that the existing pipe pile joint weld flaw detection device cannot move around the pipe pile, and improves the detection and maintenance efficiency of the pipe pile weld.

Description

Technical Field

[0001] The invention belongs to the technical field of onshore pile foundations, and in particular relates to an onshore pipe pile joint weld flaw detection device. Background Art

[0002] Due to design and transportation issues, a pile cannot be driven into the designed depth, so it is necessary to connect the piles during the construction process. The joints of the piles are mechanical joints and welded joints. Due to reasons such as the site, weather, welding level of the welding master, and whether the welding is in accordance with the specifications, the weld quality of the welded joint cannot be fully guaranteed. The specifications require 10% weld flaw detection for important engineering welded piles. In the actual operation process, monitoring personnel are required to grind the welds and then perform ultrasonic flaw detection. The existing pipe pile joint weld flaw detection device cannot detect the surrounding pipe piles. Therefore, an onshore pipe pile joint weld flaw detection device is urgently needed to solve the problem. Summary of the invention

[0003] The purpose of the present invention is to provide an onshore pipe pile joint weld flaw detection device to solve the above-mentioned problem.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] An onshore pipe pile joint weld flaw detection device, comprising:

[0006] An annular clamp is coaxially sleeved outside the pipe pile, and the annular clamp is fixed to the pipe pile or slides vertically along the pipe pile;

[0007] A surrounding device, slidably disposed on the bottom of the annular clamp;

[0008] A telescopic rod, the fixed end of which is hinged to the bottom of the surrounding device through a hinge seat, and the telescopic end of the telescopic rod is fixedly connected to a mounting plate quick-joint assembly;

[0009] A parallelism adjustment assembly is installed at the fixed end of the telescopic rod and is used to adjust the axis of the telescopic rod to be level with the axis of the pile;

[0010] The mounting plate is detachably connected to the mounting plate quick-assembly assembly, and the mounting plate is used to install a grinding device, a flaw detection device or a repair welding device.

[0011] Preferably, the annular clamp comprises two half rings spliced ​​together, and the two half rings are fixed by bolts;

[0012] Both ends of the half ring are respectively provided with bolt holes for bolts to pass through;

[0013] A plurality of first rollers arranged at equal intervals are rotatably arranged on the small-diameter side wall of the semi-ring, and the first rollers are used for the semi-ring to slide vertically along the outer wall of the pipe pile;

[0014] Any one of the first rollers is drivingly connected to a brake stop portion.

[0015] Preferably, the brake stop portion includes a through hole, which is opened on the half ring, a threaded block is fixedly connected to the middle of the through hole, the threaded block is threadedly connected to a threaded rod, one end of the threaded rod is rotatably connected to a rubber block, the rubber block is in contact with the corresponding first roller, and the rubber block is used to lock the corresponding first roller.

[0016] Preferably, the surrounding device includes an arc-shaped slider, the top of which is fixedly connected to an arc-shaped slide rail, the arc-shaped slide rail is slidably arranged in an arc-shaped slide groove opened at the bottom of the semi-ring, the small diameter side of the arc-shaped slider is rotatably connected to a plurality of second rollers arranged at equal intervals, the second rollers are used for the arc-shaped slider to move around the axis of the pipe pile, and the hinged seat is fixedly connected to the bottom of the arc-shaped slider.

[0017] Preferably, the parallelism adjustment assembly includes a mounting block, which is fixed to one side of the fixed end of the telescopic rod, a second threaded rod is horizontally arranged in the mounting block, the second threaded rod is threadedly connected to the mounting block, and a ball is rotatably arranged on the end of the second threaded rod, and the ball is used to contact the outer wall of the pipe pile.

[0018] Preferably, the mounting plate quick-assembly assembly comprises a first clamping plate, the first clamping plate is movably connected to a second clamping plate, and the first clamping plate is limitedly connected to the mounting plate after being matched with the second clamping plate;

[0019] The first clamping plate and the second clamping plate are provided with a telescopic portion for relative movement of the first clamping plate and the second clamping plate and a locking portion for limiting the movement of the first clamping plate and the second clamping plate.

[0020] Preferably, the telescopic portion includes two symmetrically arranged slide grooves, the slide grooves are provided in the first clamping plate, a slide rod is slidably connected in the slide groove, one end of the slide rod is fixedly connected to the second clamping plate, the other end of the slide rod is limitedly matched with the locking portion, the diameter of the slide rod is smaller than the inner diameter of the slide groove, a slip ring is provided between the slide rod and the slide groove, the slip ring is coaxially fixedly connected to the outer side of the slide rod, and the outer wall of the slip ring is in contact with the inner wall of the slide groove;

[0021] The outer sleeve of the sliding rod is provided with a spring, and the spring is arranged between the sliding ring and the inner wall of the sliding groove. One end of the spring abuts against the sliding ring, and the other end of the spring abuts against the inner wall of the sliding groove.

[0022] Preferably, the locking portion comprises a locking rod sliding groove arranged perpendicular to the sliding groove space, a locking rod is slidably connected in the locking rod sliding groove, two limiting protrusions are arranged on the locking rod, the limiting protrusions are correspondingly arranged with the sliding rod, the limiting protrusions are limitedly matched with the limiting groove, and the limiting groove is arranged at the corresponding end of the sliding rod;

[0023] The side wall of the locking rod is fixedly connected with a spline, the spline is slidably provided with a horizontal groove, the horizontal groove is arranged in the first clamping plate, and the spline and the horizontal groove are limitedly cooperated to prevent the locking rod from rotating.

[0024] Preferably, one end of the locking rod is rotatably connected to a threaded cap, the threaded cap is threadably connected to a thread groove, and the thread groove is provided on the first clamping plate.

[0025] Compared with the prior art, the present invention has the following advantages and technical effects:

[0026] When in use, the annular clamp is sleeved on the outside of the pipe pile, the surrounding device is slidably arranged at the bottom of the annular clamp, the grinding device, the flaw detection device or the repair welding device is fixed on the mounting plate, and the mounting plate is mounted on the mounting plate quick-assembly assembly. The height of the grinding device, the flaw detection device or the repair welding device can be adjusted by the telescopic rod, and the parallelism degree of the axis of the telescopic rod and the axis of the pipe pile can be adjusted by the parallelism adjustment assembly. By adjusting the axis of the telescopic rod to be parallel to the axis of the pipe pile, it can be ensured that the grinding device, the flaw detection device or the repair welding device moves around the axis of the pipe pile. After the device is assembled, the annular clamp is first operated to slide vertically on the pipe pile, and the position is adjusted and locked, and then the length of the telescopic rod is adjusted to enable the grinding device, the flaw detection device or the repair welding device to cover the weld, and under the action of the surrounding device, grinding, detection, positioning, repair welding and other operations are performed around the weld. The device solves the problem that the existing pipe pile joint weld flaw detection device cannot move around the pipe pile, thereby improving the detection and maintenance efficiency of the pipe pile weld. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0028] Figure 1 It is a schematic diagram of the structure of the present invention;

[0029] Figure 2 It is a top cross-sectional view of the annular clamp of the present invention;

[0030] Figure 3 A top view of the surround device of the present invention;

[0031] Figure 4 For the present invention Figure 1 A partial enlarged view of the middle part;

[0032] Figure 5 A top view of the quick-assembly structure of the mounting plate of the present invention;

[0033] Figure 6 It is a left view of the quick-assembly assembly of the mounting plate of the present invention;

[0034] Among them, 1. annular clamp; 2. surrounding device; 3. mounting plate; 4. hinge seat; 5. telescopic rod; 6. parallelism adjustment assembly; 7. mounting plate quick assembly; 101. half ring; 102. bolt hole; 103. first roller; 104. through hole; 105. threaded block; 106. rubber block; 107. threaded rod; 201. arc slider; 202. arc slide rail; 203. second roller; 601. mounting block; 602. second threaded rod; 603. ball; 701. first clamp; 702. second clamp; 703. slide rod; 704. spring; 705. slide groove; 706. slip ring; 707. limit groove; 708. lock rod; 709. threaded cap; 710. threaded groove; 711. limit protrusion; 712. horizontal groove; 713. spline; 714. lock rod slide groove. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] Reference Figures 1 to 6 The present invention discloses an onshore pipe pile joint weld flaw detection device, comprising:

[0038] The annular clamp 1 is coaxially sleeved outside the pipe pile, and the annular clamp 1 is fixed to the pipe pile or vertically slides along the pipe pile;

[0039] A surrounding device 2 is slidably arranged at the bottom of the annular clamp 1;

[0040] A telescopic rod 5, the fixed end of which is hinged to the bottom of the surrounding device 2 through a hinge seat 4, and the telescopic end of the telescopic rod 5 is fixedly connected to a mounting plate quick-assembly assembly 7;

[0041] The parallelism adjustment component 6 is installed at the fixed end of the telescopic rod 5 and is used to adjust the axis of the telescopic rod 5 to be level with the axis of the pile;

[0042] The mounting plate 3 is detachably connected to the mounting plate quick-assembly assembly 7, and the mounting plate 3 is used for installing a grinding device, a flaw detection device or a repair welding device.

[0043] When in use, the annular clamp 1 is sleeved outside the pipe pile, the surrounding device 2 is slidably arranged at the bottom of the annular clamp 1, the grinding device, flaw detection device or repair welding device is fixed on the mounting plate 3, and the mounting plate 3 is mounted on the mounting plate quick assembly 7. The height of the grinding device, flaw detection device or repair welding device can be adjusted by the telescopic rod 5, and the parallelism degree of the axis of the telescopic rod 5 and the axis of the pipe pile can be adjusted by the parallelism adjustment assembly 6. By adjusting the axis of the telescopic rod 5 to be parallel to the axis of the pipe pile, it can be ensured that the grinding device, flaw detection device or repair welding device moves around the axis of the pipe pile. After the device is assembled, the annular clamp 1 is first vertically slid on the pipe pile, and the position is adjusted and locked. Then, the length of the telescopic rod 5 is adjusted to enable the grinding device, flaw detection device or repair welding device to cover the weld, and under the action of the surrounding device 2, grinding, detection, positioning, repair welding and other operations are performed around the weld. The device solves the problem that the existing pipe pile joint weld flaw detection device cannot move around the pipe pile, thereby improving the detection and maintenance efficiency of the pipe pile weld.

[0044] According to a further optimized solution, the annular clamp 1 includes two half rings 101 spliced ​​together, and the two half rings 101 are fixed by bolts;

[0045] Bolt holes 102 for bolts to pass through are respectively provided at both ends of the half ring 101;

[0046] A plurality of first rollers 103 arranged at equal intervals are rotatably arranged on the small diameter side wall of the semi-ring 101, and the first rollers 103 are used for the semi-ring 101 to slide vertically along the outer wall of the pile;

[0047] Any first roller 103 is transmission-connected with a brake stopper.

[0048] A further optimized solution is that the brake stop portion includes a through hole 104, which is opened on the half ring 101, a threaded block 105 is fixedly connected to the middle of the through hole 104, the threaded block 105 is threadedly connected to a threaded rod 107, one end of the threaded rod 107 is rotatably connected to a rubber block 106, the rubber block 106 is in contact with the corresponding first roller 103, and the rubber block 106 is used to lock the corresponding first roller 103.

[0049] When in use, two half rings 101 are spliced ​​into a circular ring, and a pipe pile is set between the two half rings 101. After the two half rings 101 are fixed by bolts, the horizontality of the half rings 101 is adjusted so that the axis of the circular ring formed by the two half rings 101 is colinear with the axis of the pipe pile.

[0050] The two half rings 101 can move along the axis of the pile through the first rollers 103. After moving into place, the rubber block 106 squeezes the corresponding first rollers 103 by rotating the threaded rod 107, so that one of the first rollers 103 cannot rotate, thereby fixing the half ring 101 relative to the pile.

[0051] A further optimized solution is that the surrounding device 2 includes an arc-shaped slider 201, a arc-shaped slide rail 202 is fixedly connected to the top of the arc-shaped slider 201, the arc-shaped slide rail 202 is slidably set in an arc-shaped slide groove opened at the bottom of the semi-ring 101, and the small diameter side of the arc-shaped slider 201 is rotatably connected to a plurality of second rollers 203 arranged at equal intervals, and the second rollers 203 are used for the arc-shaped slider 201 to move around the axis of the pile, and the articulated seat 4 is fixed to the bottom of the arc-shaped slider 201.

[0052] Before the two half rings 101 are fixed, the arcuate slide rail 202 of the arcuate slide block 201 is slid into the arcuate slide groove opened at the bottom of the half ring 101. The setting of the second roller 203 enables the arcuate slide block 201 to move around the axis of the pipe pile, and is used for the grinding device, flaw detection device or welding repair device to move around the weld of the pipe pile.

[0053] A plurality of arc-shaped sliders 201 can be provided, so that a grinding device, a flaw detection device and a repair welding device can be installed simultaneously under the annular fixture 1, thereby realizing the assembly line operation of grinding, detection, positioning and repair welding, and further improving efficiency.

[0054] A further optimized solution is that the parallelism adjustment component 6 includes a mounting block 601, which is fixed to one side of the fixed end of the telescopic rod 5. A second threaded rod 602 is horizontally arranged in the mounting block 601, and the second threaded rod 602 is threadedly connected to the mounting block 601. A ball 603 is rotatably arranged on the end of the second threaded rod 602, and the ball 603 is used to contact the outer wall of the pipe pile.

[0055] Since the pipe pile may be tilted, the axis of the telescopic rod 5 is not parallel to the axis of the pipe pile, which may cause the grinding device, flaw detection device or repair welding device to move close to or away from the side wall of the pipe pile when moving around the weld of the pipe pile, resulting in reduced detection accuracy and repair welding accuracy. Therefore, by rotating the second threaded rod 602, the extension length is changed under the action of the thread of the mounting block 601, so that the ball 603 contacts and rolls with the side wall of the pipe pile. The second threaded rod 602 can limit the distance between the telescopic rod 5 and the outer wall of the pipe pile. The operator presses the fixed end of the telescopic rod 5 to make the ball 603 close to the side wall of the pipe pile, thereby limiting the distance between the grinding device, flaw detection device or repair welding device and the outer wall of the pipe pile, avoiding the grinding device, flaw detection device or repair welding device and the outer wall of the pipe pile.

[0056] Further optimizing the scheme, the mounting plate quick assembly 7 includes a first clamping plate 701, the first clamping plate 701 is movably connected to the second clamping plate 702, and the first clamping plate 701 and the second clamping plate 702 are matched and connected to the mounting plate 3 in a limited position;

[0057] The first clamping plate 701 and the second clamping plate 702 are provided with a telescopic portion for relative movement of the first clamping plate 701 and the second clamping plate 702 and a locking portion for limiting the movement of the first clamping plate 701 and the second clamping plate 702 .

[0058] Further optimized solution, the telescopic part includes two symmetrically arranged slide grooves 705, the slide grooves 705 are opened in the first clamping plate 701, and a slide rod 703 is slidably connected in the slide groove 705, one end of the slide rod 703 is fixedly connected to the second clamping plate 702, and the other end of the slide rod 703 is limitedly matched with the locking part, the diameter of the slide rod 703 is smaller than the inner diameter of the slide groove 705, and a slip ring 706 is provided between the slide rod 703 and the slide groove 705, and the slip ring 706 is coaxially fixed to the outer side of the slide rod 703, and the outer wall of the slip ring 706 is in contact with the inner wall of the slide groove 705;

[0059] A spring 704 is disposed on the outer sleeve of the slide rod 703 . The spring 704 is disposed between the slip ring 706 and the inner wall of the slide groove 705 . One end of the spring 704 abuts against the slip ring 706 , and the other end of the spring 704 abuts against the inner wall of the slide groove 705 .

[0060] When in use, the locking portion is opened so that the slide rod 703 can slide relative to the slide groove 705, so that the second clamping plate 702 is pulled out. At this time, the spring 704 is compressed. When the distance between the first clamping plate 701 and the second clamping plate 702 increases, the mounting plate 3 can be placed between the first clamping plate 701 and the second clamping plate 702. Then, the second clamping plate 702 is released, the spring 704 is released, and the distance between the first clamping plate 701 and the second clamping plate 702 is reduced. After the first clamping plate 701 and the second clamping plate 702 firmly clamp the mounting plate 3, the distance between the first clamping plate 701 and the second clamping plate 702 is locked by the locking portion.

[0061] In a further optimized solution, the locking portion includes a locking rod sliding groove 714 vertically arranged in the sliding groove 705, a locking rod 708 is slidably connected in the locking rod sliding groove 714, and two limiting protrusions 711 are provided on the locking rod 708. The limiting protrusions 711 are provided corresponding to the sliding rod 703, and the limiting protrusions 711 are limitedly matched with the limiting groove 707, and the limiting groove 707 is provided at the end of the corresponding sliding rod 703;

[0062] A spline 713 is fixedly connected to the side wall of the locking rod 708 , and a horizontal groove 712 is slidably formed on the spline 713 . The horizontal groove 712 is provided in the first clamping plate 701 , and the spline 713 and the horizontal groove 712 are limitedly matched to prevent the locking rod 708 from rotating.

[0063] To further optimize the solution, one end of the locking rod 708 is rotatably connected to a threaded cap 709 , the threaded cap 709 is threadedly connected to a threaded groove 710 , and the threaded groove 710 is provided on the first clamping plate 701 .

[0064] After the spring 704 releases its length, the limiting groove 707 is pushed into the limiting protrusion 711 through the slip ring 706. At this time, the locking rod 708 is pushed to make the limiting protrusion 711 and the corresponding limiting groove 707 cooperate to achieve the locking between the first clamping plate 701 and the second clamping plate 702. At the same time, by rotating the threaded cap 709 and screwing the threaded cap 709 into the threaded groove 710, the locking rod 708 can be prevented from sliding, so that the limiting protrusion 711 and the corresponding limiting groove 707 can be more firmly cooperated.

[0065] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0066] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An onshore pipe pile joint weld flaw detection device, characterized in that: include: An annular clamp (1) is coaxially sleeved outside the pipe pile, and the annular clamp (1) is fixed to the pipe pile or slides vertically along the pipe pile; A surrounding device (2) is slidably arranged on the bottom of the annular clamp (1); A telescopic rod (5), the fixed end of the telescopic rod (5) being hinged to the bottom of the surrounding device (2) via a hinge seat (4), and the telescopic end of the telescopic rod (5) being fixedly connected to a mounting plate quick-assembly assembly (7); A parallelism adjustment component (6) is installed at the fixed end of the telescopic rod (5) and is used to adjust the axis of the telescopic rod (5) to be level with the axis of the pile; The mounting plate (3) is detachably connected to the mounting plate quick-assembly assembly (7); the mounting plate (3) is used to install a grinding device, a flaw detection device or a repair welding device.

2. The onshore pipe pile joint weld flaw detection device according to claim 1, characterized in that: The annular clamp (1) comprises two half rings (101) spliced ​​together, and the two half rings (101) are fixed by bolts; Both ends of the half ring (101) are respectively provided with bolt holes (102) for bolts to pass through; A plurality of first rollers (103) arranged at equal intervals are rotatably arranged on the small-diameter side wall of the semi-ring (101), and the first rollers (103) are used for the semi-ring (101) to slide vertically along the outer wall of the pipe pile; Any one of the first rollers (103) is transmission-connected with a brake stopper.

3. The onshore pipe pile joint weld flaw detection device according to claim 2, characterized in that: The brake stop portion comprises a through hole (104), wherein the through hole (104) is provided on the half ring (101), a threaded block (105) is fixedly connected to the middle of the through hole (104), the threaded block (105) is threadedly connected to a threaded rod (107), one end of the threaded rod (107) is rotatably connected to a rubber block (106), the rubber block (106) contacts the corresponding first roller (103), and the rubber block (106) is used to lock the corresponding first roller (103).

4. The onshore pipe pile joint weld flaw detection device according to claim 2, characterized in that: The surrounding device (2) comprises an arc-shaped slider (201), the top of which is fixedly connected to an arc-shaped slide rail (202), the arc-shaped slide rail (202) being slidably arranged in an arc-shaped slide groove provided at the bottom of the semi-ring (101), the small diameter side of the arc-shaped slider (201) being rotatably connected to a plurality of second rollers (203) arranged at equal intervals, the second rollers (203) being used for the arc-shaped slider (201) to move around the axis of the pile, and the hinge seat (4) being fixedly connected to the bottom of the arc-shaped slider (201).

5. The onshore pipe pile joint weld flaw detection device according to claim 1, characterized in that: The parallelism adjustment assembly (6) comprises a mounting block (601), wherein the mounting block (601) is fixed to one side of the fixed end of the telescopic rod (5), a second threaded rod (602) is horizontally arranged inside the mounting block (601), the second threaded rod (602) is threadedly connected to the mounting block (601), and a ball (603) is rotatably arranged at the end of the second threaded rod (602), and the ball (603) is used to contact the outer wall of the pipe pile.

6. The onshore pipe pile joint weld flaw detection device according to claim 1, characterized in that: The mounting plate quick-assembly assembly (7) comprises a first clamping plate (701), the first clamping plate (701) being movably connected to a second clamping plate (702), and the first clamping plate (701) and the second clamping plate (702) being matched to be position-limitedly connected to the mounting plate (3); The first clamping plate (701) and the second clamping plate (702) are provided with a telescopic portion for relative movement of the first clamping plate (701) and the second clamping plate (702) and a locking portion for limiting the movement of the first clamping plate (701) and the second clamping plate (702).

7. The onshore pipe pile joint weld flaw detection device according to claim 6, characterized in that: The telescopic portion includes two symmetrically arranged sliding grooves (705), wherein the sliding grooves (705) are provided in the first clamping plate (701), and a sliding rod (703) is slidably connected in the sliding groove (705), one end of the sliding rod (703) is fixedly connected to the second clamping plate (702), and the other end of the sliding rod (703) is limitedly matched with the locking portion, the diameter of the sliding rod (703) is smaller than the inner diameter of the sliding groove (705), and a slip ring (706) is provided between the sliding rod (703) and the sliding groove (705), and the slip ring (706) is coaxially fixedly connected to the outer side of the sliding rod (703), and the outer wall of the slip ring (706) is arranged in contact with the inner wall of the sliding groove (705); The outer sleeve of the sliding rod (703) is provided with a spring (704), and the spring (704) is arranged between the sliding ring (706) and the inner wall of the sliding groove (705). One end of the spring (704) abuts against the sliding ring (706), and the other end of the spring (704) abuts against the inner wall of the sliding groove (705).

8. The onshore pipe pile joint weld flaw detection device according to claim 7, characterized in that: The locking portion comprises a locking rod sliding groove (714) vertically arranged in the space of the sliding groove (705), a locking rod (708) is slidably connected in the locking rod sliding groove (714), two limiting protrusions (711) are provided on the locking rod (708), the limiting protrusions (711) are arranged corresponding to the sliding rod (703), the limiting protrusions (711) are limitedly matched with the limiting groove (707), and the limiting groove (707) is provided at the corresponding end of the sliding rod (703); The side wall of the locking rod (708) is fixedly connected with a spline (713), and the spline (713) is slidably provided with a horizontal groove (712). The horizontal groove (712) is provided in the first clamping plate (701), and the spline (713) and the horizontal groove (712) are limitedly matched to prevent the locking rod (708) from rotating.

9. The onshore pipe pile joint weld flaw detection device according to claim 8, characterized in that: One end of the locking rod (708) is rotatably connected to a threaded cap (709), and the threaded cap (709) is threadably connected to a threaded groove (710), and the threaded groove (710) is provided on the first clamping plate (701).

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