Adjustable nondestructive testing device for pipeline welding seam

Abstract

The utility model relates to an adjustable nondestructive testing device for a pipeline welding seam, which comprises a machine body, two hollow boxes are arranged on the bottom side of the machine body, a positioning shaft is arranged between two side walls in each hollow box, a spring steel belt is arranged on the peripheral wall of each positioning shaft, and one end of each spring steel belt extends to the outer side of the end part of the corresponding hollow box. The utility model relates to the technical field of pipeline welding seam detection. When the adjustable nondestructive testing device for the pipeline welding seam is used, a spring steel belt is matched with a limiting assembly for positioning, a machine body can smoothly perform circular motion around the welding seam through a guide assembly when the pipeline welding seam is detected, and deviation is avoided during circular motion; and the stability and the accuracy are improved when the welding seam is detected.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline weld detection, in particular to an adjustable nondestructive detection device for pipeline welds. Background Art

[0002] Nondestructive testing technology refers to the technology of detecting and evaluating internal and surface defects through physical or chemical methods without destroying the material or structure. In pipeline welds, nondestructive testing is mainly used for the detection and control of weld quality to ensure the integrity and sealing of the welds. Common nondestructive testing methods include penetration testing, magnetic particle testing, acoustic testing and x-ray testing. Among them, penetration testing and magnetic particle testing are mainly used for surface testing of pipeline welds to see if cracks appear, while acoustic testing and x-ray testing are mainly used to detect the specific conditions inside the welds. Most pipeline welds are mainly tested using acoustic testing and x-ray testing, and x-rays are generally used for testing in order to improve detection efficiency and for more intuitive observation.

[0003] The commonly used method in the prior art is generally to tie the x-ray detector to the pipeline with a strap, and then continuously tighten the strap until the x-ray detector is fixed on the pipeline, and then inspect the weld on the pipeline. However, when tightening the strap, it is necessary to operate through the pull rod on the x-ray detector, and when moving the x-ray detector, the strap needs to be loosened and tightened again after moving, which affects the efficiency of the inspection. In addition, when moving the x-ray detector, it is easy for the detection head to deviate from the weld on the pipeline, thereby affecting the accuracy of the x-ray inspection. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an adjustable non-destructive testing device for pipeline welds, so as to solve the technical problems mentioned in the above background technology.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] An adjustable nondestructive testing device for pipeline welds includes a body, two hollow boxes are installed on the bottom side of the body, a positioning shaft is installed between the two side walls inside the hollow box, a spring steel belt is installed on the outer peripheral wall of the positioning shaft, one end of the spring steel belt extends to the outside of the end of the hollow box, sliding grooves are opened on both sides of the spring steel belt, guide components are installed on the outside of the two hollow boxes, and a limiting component is installed on the bottom side of the body.

[0007] In a preferred example, the utility model can be further configured as follows: the guide assembly includes two support plates, the two support plates are installed at the bottom of the body and are located on both sides of the hollow box, the bottom ends of the support plates are connected to rubber plates, and a positioning piece is installed on one side of the rubber plate close to the hollow box.

[0008] In a preferred example, the utility model can be further configured as follows: the positioning member includes a number of holes and grooves, the holes and grooves are opened on the side of the rubber plate close to the hollow box, the inner end of the holes and grooves is connected to a positioning spring, the end of the positioning spring is connected to a positioning rod, a guide groove is opened on the side of the hollow box close to the positioning rod, the end of the positioning rod extends into the slide groove and is rotatably installed with a positioning bead, the positioning bead is slidably connected to the guide groove, and the side corners of the hollow box are inclined.

[0009] In a preferred example, the utility model can be further configured as follows: a hook is installed at the end of the clockwork steel strip, a notch is opened at one end of the hollow box away from the end of the clockwork steel strip, and a hanging rod is installed in the notch.

[0010] In a preferred example, the utility model can be further configured as follows: the limit assembly includes two groups of clamps, the two groups of clamps are respectively installed on the two side sides of the bottom of the body, each group of clamps has two, the opposite sides of the clamps in the same group are connected with connecting rods, the connecting rods are installed with torsion springs, the ends of the torsion springs are connected to the limit plates, and the limit shafts are connected between the two connecting rods.

[0011] In a preferred example, the utility model can be further configured as follows: two toothed rings are installed on the outer peripheral wall of the limit shaft, a number of tooth grooves are opened on the clockwork steel belt, and the toothed rings are meshed with the tooth grooves.

[0012] In summary, the present invention includes at least one of the following beneficial technical effects:

[0013] 1. The adjustable nondestructive testing device for pipeline welds can be positioned by the spring steel belt and the limit assembly when in use, and the guide assembly can make the body smoothly move in a circular motion around the weld when testing the pipeline weld, and avoid deviation during the circular motion, thereby improving the stability and accuracy of the weld detection;

[0014] 2. The adjustable nondestructive testing device for pipeline welds, after the hook is arranged around the pipeline, is inserted into the notch of the hollow box and the hook is hung on the hanging rod, the spring steel belt will shrink and tighten, and at the same time, the spring steel belt at the sliding groove at one end of the hook will be aligned with the guide groove on the side wall of the hollow box, so that the body can perform a circular motion around the pipeline;

[0015] 3. The adjustable nondestructive testing device for pipeline welds has a clamping plate and a connecting rod with a torsion spring. When installed on the pipeline, the limit plate can be pushed to drive the limit shaft to move in a circle. At this time, the limit shaft will be close to the spring steel belt, and the limit shafts on both sides of the body will be clamped on the spring steel belt. Then, the limit of the spring steel belt itself can prevent the body from deflecting.

[0016] 4. The adjustable nondestructive testing device for pipeline welds has a toothed ring and a toothed groove on the spring steel belt that mesh with each other. After the limit shaft is positioned, the toothed ring will be driven to rotate on the spring steel belt when the machine body moves, further preventing the machine body from shifting and improving the accuracy of detecting welds when the machine body is used. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 The utility model is a schematic diagram of the overall structure of the adjustable nondestructive testing device for pipeline welds.

[0019] Figure 2 The utility model is a schematic diagram of the dissected structure of an adjustable nondestructive testing device for pipeline welds.

[0020] Figure 3 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0021] In the figure, 1. body; 2. hollow box; 3. positioning shaft; 4. spring steel belt; 5. slide groove; 6. guide assembly; 7. limit assembly; 8. support plate; 9. rubber plate; 10. positioning piece; 11. hole groove; 12. positioning spring; 13. positioning rod; 14. positioning bead; 15. guide groove; 16. hook; 17. missing groove; 18. hanging rod; 19. splint; 20. connecting rod; 21. torsion spring; 22. limit plate; 23. limit shaft; 24. gear ring; 25. tooth groove. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] Example:

[0024] Reference Figure 1 - Figure 3The utility model discloses an adjustable nondestructive testing device for pipeline welds, comprising a body 1, two hollow boxes 2 are installed on the bottom side of the body 1, a positioning shaft 3 is installed between the two side walls inside the hollow box 2, a spring steel belt 4 is installed on the outer peripheral wall of the positioning shaft 3, one end of the spring steel belt 4 extends to the outside of the end of the hollow box 2, and slide grooves 5 are opened on both sides of the spring steel belt 4, guide components 6 are installed on the outside of the two hollow boxes 2, and a limiting component 7 is installed on the bottom side of the body 1.

[0025] In this embodiment, when in use, the body 1 is placed on the pipeline to be monitored, and then the detection head of the body 1 is aligned with the weld, and the body 1 is parallel to the pipeline, and the hollow box 2 arranged at the bottom of the body 1 is placed against the pipeline. The hollow box 2 is made of rubber or silicone, and then the spring steel belt 4 is pulled out and wrapped around the pipeline, and the end of the spring steel belt 4 is fixed by the set limit component 7, wherein a gap is left between the body 1 and the hollow box 2, and the body 1 is moved by the set guide component 6, and makes a circular motion around the slide groove 5 of the spring steel belt 4, and at the same time, the detection is performed by the detection head of the body 1, so that when in use, the body 1 can be conveniently moved in a circular motion around the weld, and the body 1 is prevented from being offset, thereby improving the accuracy of x-ray detection.

[0026] In a further preferred embodiment of the present invention, Figure 1-3 As shown, the guide assembly 6 includes two support plates 8, which are installed at the bottom of the body 1 on both sides of the hollow box 2. The bottom ends of the support plates 8 are connected to rubber plates 9, and a positioning member 10 is installed on one side of the rubber plate 9 close to the hollow box 2.

[0027] In this embodiment, the support plate 8 is provided to support the body 1, and the adding plate and the positioning member 10 are slidably connected with the hollow body. After the spring steel belt 4 is connected, the body 1 moves along the slide groove 5 on the spring steel belt 4, so that the body 1 can smoothly move in a circular motion around the weld to avoid deviation.

[0028] In a further preferred embodiment of the present invention, Figure 1-3 As shown, the positioning member 10 includes a plurality of holes 11, and the hole 11 is opened on the side of the rubber plate 9 close to the hollow box 2. The inner end of the hole 11 is connected to a positioning spring 12, and the end of the positioning spring 12 is connected to a positioning rod 13. A guide groove 15 is opened on the side of the hollow box 2 close to the positioning rod 13, and the end of the positioning rod 13 extends into the slide groove 5 and is rotatably installed with a positioning bead 14, and the positioning bead 14 is slidably connected to the guide groove 15, wherein the side corners of the hollow box 2 are inclined.

[0029] In this embodiment, the slots are used to install the positioning springs 12 and the positioning rods 13. The positioning rods 13 have positioning beads 14 at their ends, and the positioning rods 13 extend into the guide grooves 15. The positioning beads 14 and the positioning rods 13 are used as limiters to allow the machine body 1 to be slidably connected to the hollow box 2. When the machine body 1 is moved, the positioning rods 13 will be driven to move, and the positioning beads 14 will roll in the guide grooves 15. When the machine body 1 is moved to the hypotenuse of the corner of the side of the hollow box 2, the positioning springs 12 will extend. At this time, the positioning beads 14 will slide into the slide grooves 5, and the machine body 1 will move along the path of the slide grooves 5. In addition, the rubber plates 9 can be deformed at the curved position to facilitate the rolling of the positioning rods 13 and the positioning beads 14 in the slide grooves 5, thereby preventing the movement of the machine body 1 from being affected by friction.

[0030] In a further preferred embodiment of the present invention, Figure 1-3 As shown, a hook 16 is installed at the end of the clockwork steel strip 4, and a slot 17 is formed at one end of the hollow box 2 away from the end of the clockwork steel strip 4, and a hanging rod 18 is installed in the slot 17.

[0031] In this embodiment, after the hook 16 is arranged around the pipe, it is inserted into the notch 17 of the hollow box 2 and the hook 16 is hung on the hanging rod 18, the spring steel belt 4 will retract and tighten, and at the same time, the slide groove 5 at one end of the spring steel belt 4 located at the hook 16 will be aligned with the guide groove 15 on the side wall of the hollow box 2, so as to facilitate the circular motion of the body 1 around the pipe.

[0032] In a further preferred embodiment of the present invention, Figure 1-3 As shown, the limit assembly 7 includes two groups of clamps 19, and the two groups of clamps 19 are respectively installed on the two side sides of the bottom of the body 1, and each group of clamps 19 has two, and the opposite sides of the clamps 19 in the same group are connected with connecting rods 20, and the connecting rods 20 are installed with torsion springs 21. The ends of the torsion springs 21 are connected to the limit plates 22, and the limit shafts 23 are connected between the two connecting rods 20.

[0033] In this embodiment, the clamping plate 19 and the connecting rod 20 cooperate with the torsion spring 21. When installed on the pipe, they can push the limit plate 22 to drive the circular motion of the limit shaft 23. At this time, the limit shaft 23 will be close to the spring steel belt 4, and the limit shafts 23 located on both sides of the body 1 will be clamped on the spring steel belt 4, and then the spring steel belt 4 itself will be limited to prevent the body 1 from deflecting.

[0034] In a further preferred embodiment of the present invention, Figure 1-3 As shown, two tooth rings 24 are installed on the outer peripheral wall of the limiting shaft 23 , and a number of tooth grooves 25 are opened on the clockwork steel belt 4 , and the tooth rings 24 are meshed with the tooth grooves 25 .

[0035] In this embodiment, the toothed ring 24 is meshed with the toothed groove 25 on the spring steel belt 4. After the limit shaft 23 is positioned, the toothed ring 24 will be driven to rotate on the spring steel belt 4 when the body 1 moves, thereby further preventing the body 1 from shifting and improving the accuracy of detecting the weld when the body 1 is in use.

[0036] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An adjustable nondestructive testing device for pipeline welds, comprising a body (1), characterized in that: Two hollow boxes (2) are installed on the bottom side of the body (1), a positioning shaft (3) is installed between the two side walls inside the hollow box (2), a spring steel belt (4) is installed on the outer peripheral wall of the positioning shaft (3), one end of the spring steel belt (4) extends to the outside of the end of the hollow box (2), and the two sides of the spring steel belt (4) are provided with sliding grooves (5), and the outer sides of the two hollow boxes (2) are installed with guide components (6), and a limiting component (7) is installed on the bottom side of the body (1).

2. The adjustable nondestructive testing device for pipeline welds according to claim 1, characterized in that: The guide assembly (6) comprises two support plates (8), the two support plates (8) being mounted at the bottom of the machine body (1) and located on both sides of the hollow box (2), the bottom ends of the support plates (8) being connected to rubber plates (9), and a positioning member (10) being mounted on one side of the rubber plate (9) close to the hollow box (2).

3. The adjustable nondestructive testing device for pipeline welds according to claim 2, characterized in that: The positioning member (10) comprises a plurality of holes (11), wherein the holes (11) are provided on a side of the rubber plate (9) close to the hollow box (2), a positioning spring (12) is connected to the inner end of the holes (11), a positioning rod (13) is connected to the end of the positioning spring (12), a guide groove (15) is provided on a side of the hollow box (2) close to the positioning rod (13), the end of the positioning rod (13) extends into the slide groove (5) and is rotatably mounted with a positioning bead (14), the positioning bead (14) is slidably connected to the guide groove (15), wherein the side corners of the hollow box (2) are inclined.

4. The adjustable nondestructive testing device for pipeline welds according to claim 3, characterized in that: A hook (16) is installed at the end of the spring steel strip (4), and a notch (17) is provided at one end of the hollow box (2) away from the end of the spring steel strip (4), and a hanging rod (18) is installed in the notch (17).

5. The adjustable nondestructive testing device for pipeline welds according to claim 4, characterized in that: The limit assembly (7) comprises two groups of clamping plates (19), which are respectively mounted on two side edges of the bottom of the machine body (1), each group of clamping plates (19) comprises two clamping plates, and opposite sides of the clamping plates (19) of the same group are connected with connecting rods (20), a torsion spring (21) is mounted on the connecting rod (20), an end of the torsion spring (21) is connected with a limit plate (22), and a limit shaft (23) is connected between the two connecting rods (20).

6. The adjustable nondestructive testing device for pipeline welds according to claim 5, characterized in that: Two toothed rings (24) are installed on the outer peripheral wall of the limiting shaft (23), a number of toothed grooves (25) are opened on the spring steel belt (4), and the toothed rings (24) are meshed with the toothed grooves (25).

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