Pipe transverse defect flaw detection device

Abstract

The utility model discloses a pipe transverse defect flaw detection device which comprises supporting blocks, limiting frames are connected to the upper ends of the supporting blocks, a connecting strip is connected between the supporting blocks, an inserting cylinder is connected to one side of the connecting strip in a sliding mode, an inserting plate is connected to the inserting cylinder in a sliding mode, one end of the inserting plate is connected with a deflection frame, and a detection contact is connected to the deflection frame in a rotating mode. A detector is connected to one side of the deflection frame, a sliding groove is formed in the connecting strip, the inserting barrel is slidably connected to the sliding groove, a sliding rod is connected between the limiting frames, a sliding sleeve is connected to the inserting barrel, the sliding sleeve is slidably connected to the sliding rod, and a handle is connected to one side of the inserting barrel. According to the utility model, the insertion cylinder and sliding sleeve structure is adopted, so that when the transverse line defect detection is carried out on the pipe, the detection contact can always keep transverse movement and is matched with the screw to fix the insertion plate structure, so that the detection contact can always keep a state of being attached to the surface of the pipe to complete the detection, and the detection precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe flaw detection, in particular to a device for detecting transverse defects of pipes. Background Art

[0002] Pipe flaw detection aims to detect internal and external defects of pipes to ensure safe operation. Common methods include radiographic flaw detection, which uses rays to penetrate and image to judge defects, with intuitive results but high costs and radiation; ultrasonic flaw detection relies on analyzing reflected waves, is sensitive to cracks, fast in detection but not intuitive; magnetic particle flaw detection is applicable to the surface of ferromagnetic materials and is easy to operate; penetrant flaw detection can detect surface-opening defects of various materials. The flaw detection process includes cleaning the surface before flaw detection, operating according to the method specifications during flaw detection, and finally identifying and evaluating defects.

[0003] In industrial production and infrastructure construction, pipes are widely used to transport various fluids. Due to the long-term action of internal pressure, external environmental erosion, mechanical stress, etc. on pipes, defects are extremely likely to occur. If not discovered and dealt with in time, serious accidents such as leakage and explosion may be caused. Therefore, pipe flaw detection is crucial. Currently, the common method of pipe flaw detection is to manually hold a flaw detection device and slide it on the surface of the pipe to complete the detection. However, during transverse flaw detection operations, it is difficult for manual labor to ensure that the flaw detection contact head always moves horizontally, and the fitting force between the contact head and the pipe cannot be maintained consistently. This not only leads to large errors in the detection results but also may miss key defects.

[0004] Based on this, a device for detecting transverse defects of pipes is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to propose a device for detecting transverse defects of pipes in order to solve the above problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A device for detecting transverse defects of pipes includes a support block. A limit frame is connected to the upper end of the support block. A connecting bar is connected between the support blocks. A socket is slidably connected to one side of the connecting bar. A plug board is slidably connected to the socket. One end of the plug board is connected to a deflection frame. A detection contact head is rotatably connected to the deflection frame. A detector is connected to one side of the deflection frame.

[0008] Preferably, a chute is provided on the connecting bar, and the socket is slidably connected to the chute.

[0009] Preferably, a sliding rod is connected between the limit frames. A sliding sleeve is connected to the socket, and the sliding sleeve is slidably connected to the sliding rod.

[0010] Preferably, a handle is connected to one side of the socket.

[0011] Preferably, a screw is threadedly connected to the insertion cylinder, and one end of the screw abuts against the insertion plate.

[0012] Preferably, a placement box is connected to one side of the deflection frame, and the detector is arranged in the placement box.

[0013] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0014] 1. By adopting the insertion cylinder and sliding sleeve structure in this application, when detecting the horizontal defects of the pipe, the detection contact can always move horizontally. Cooperating with the screw to fix the insertion plate structure, the detection contact can always keep in contact with the surface of the pipe to complete the detection, improving the detection accuracy.

[0015] 2. By adopting the insertion plate structure in this application, the distance between the detection contact and the pipe can be adjusted arbitrarily by using the insertion plate, so as to achieve the effect of detecting the defects of pipes with different diameters. Cooperating with the handle structure, the movement of the detection contact can be easily completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shows a schematic structural diagram of the overall flaw detection device provided by an embodiment of the present utility model;

[0017] Figure 2 Shows a schematic structural diagram of the handle connection provided by an embodiment of the present utility model;

[0018] Figure 3 Shows an exploded structural diagram of the insertion plate connection provided by an embodiment of the present utility model.

[0019] LEGEND DESCRIPTION:

[0020] 1. Support block; 2. Limit frame; 3. Connection bar; 4. Insertion cylinder; 5. Deflection frame; 6. Placement box; 7. Slide groove; 8. Handle; 9. Detection contact; 10. Sliding sleeve; 11. Slide bar; 12. Detector; 13. Screw; 14. Insertion plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1 - 3 , the present utility model provides a technical solution:

[0023] A device for detecting transverse defects of pipes comprises a support block 1, wherein the upper end of the support block 1 is connected to a limit frame 2, and two support blocks 1 are provided. When the pipe is to be detected, the pipe needs to be placed on the limit frame 2, and when it is necessary to detect different positions of the pipe, the detection personnel can manually rotate the pipe to change the detection position of the pipe. A connecting strip 3 is connected between the support blocks 1, and the connecting strip 3 structure is arranged directly below the pipe. An insert tube 4 is slidably connected to one side of the connecting strip 3, and an insert plate 14 is slidably connected to the insert tube 4. The insert tube 4 is sleeved on the outside of the insert plate 14, and a deflection frame 5 is connected to one end of the insert plate 14. The deflection frame 5 and the insert plate 14 are vertically connected to each other. A detection contact 9 is rotatably connected to the deflection frame 5, and a detector 12 is connected to one side of the deflection frame 5. The detector 12 model is XUT560C, and the detector 12 is connected to the detection contact 9 through a lead.

[0024] Specifically, Figure 2 and Figure 3 As shown, a slide groove 7 is provided on the connecting strip 3, and the insert tube 4 is slidably connected to the slide groove 7. When the insert tube 4 slides on the slide groove 7, the detection contact 9 can move laterally along the pipe, and the horizontal position of the insert tube 4 is limited by the slide groove 7, thereby improving the stability of the horizontal movement of the insert tube 4.

[0025] Specifically, Figure 2 As shown, a slide bar 11 is connected between the limit frames 2, a slide sleeve 10 is connected to the insert cylinder 4, and the slide sleeve 10 is slidably connected to the slide bar 11. The slide bar 11 and the slide groove 7 jointly limit the insert cylinder 4 structure, ensuring that the detection contact 9 will not deviate during movement.

[0026] Specifically, Figure 2 As shown, a handle 8 is connected to one side of the insert tube 4. The handle 8 is provided to facilitate the detection personnel to move the detector 12, wherein the handle 8 is an inverted "U"-shaped structure in a vertical state, which is convenient for the detection personnel to hold and improves the convenience of movement. The handle 8 is away from the side of the detection contact 9, which also avoids interfering with the detection of the detection contact 9 and improves the detection accuracy.

[0027] Specifically, Figure 3 As shown, a screw 13 is threadedly connected to the insert tube 4, and one end of the screw 13 abuts on the plug plate 14. The screw 13 can be used to fix the plug plate 14 structure, thereby increasing the adjustability of the position of the detection contact 9. The fixation completed by the abutment of the screw 13 is simple to operate, thereby increasing the flexibility of adjusting the plug plate 14 structure.

[0028] Among them, the positioning method relying on the abutment of the screw 13 is carried out by extrusion. Although this positioning effect is worse than that of the screw hole structure, this positioning can be carried out at any position, which exactly meets the test requirements of variable pipe sizes. That is, pipes of different sizes need to be targeted for the positioning and fixing of the screw 13. However, the positioning position of the traditional screw hole positioning is limited by the position of the screw hole. When the pipe size positioning needs to be between two screw holes, this screw hole positioning method cannot be realized. Considering the problem of less demand for positioning force and that it will not affect the test, under the condition of strict requirements for the positioning position, this positioning method is adopted. This positioning can be understood as being fixed by clamping. Although the fixing stability is slightly lacking, in the case of a test without external force interference, it can fully meet the test requirements.

[0029] Specifically, as Figure 2 shown, a placement box 6 is connected to one side of the deflection frame 5, and the detector 12 is arranged in the placement box 6. By setting the placement box 6, the movement of the detector 12 becomes more stable, achieving the effect of accommodating the detector 12, and the stable structure of the detector 12 further ensures the accuracy of the detection data.

[0030] In summary, for a pipe transverse defect detection device provided by this embodiment, when it is necessary to detect the defects of the pipe, the pipe can be placed on the limit frame 2, adjust the depth of the insertion plate 14 inserted into the insertion cylinder 4, ensure that the detection contact 9 deflects to a certain angle, so that the detection contact 9 can fit with the outer wall of the pipe, and use the screw 13 to complete the fixation of the positions of the two structures. Subsequently, the operator only needs to hold the handle 8 to move the detection contact 9 to complete the detection of the transverse defects of the pipe. When it is necessary to change the horizontal position of the pipe, only rotate the pipe. At this time, the detection contact 9 does not need to be adjusted in position and can still ensure the fit between the detection contact 9 and the pipe. During the detection process, the detection contact 9 can always maintain horizontal movement, and the fit state between the detection contact 9 and the pipe is consistent, which can effectively ensure the detection accuracy of the transverse defects of the pipe.

[0031] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A transverse defect detection device for a pipe, comprising a support block (1), characterized in that: The upper end of the support block (1) is connected to a limit frame (2), a connecting strip (3) is connected between the support blocks (1), one side of the connecting strip (3) is slidably connected to an insert cylinder (4), an insert plate (14) is slidably connected to the insert cylinder (4), one end of the insert plate (14) is connected to a deflection frame (5), a detection contact (9) is rotatably connected to the deflection frame (5), and one side of the deflection frame (5) is connected to a detector (12).

2. A transverse defect detection device for pipes according to claim 1, characterized in that: The connecting strip (3) is provided with a sliding groove (7), and the inserting tube (4) is slidably connected to the sliding groove (7).

3. A transverse defect detection device for pipes according to claim 1, characterized in that: A sliding rod (11) is connected between the limiting frames (2), a sliding sleeve (10) is connected to the inserting cylinder (4), and the sliding sleeve (10) is slidably connected to the sliding rod (11).

4. A transverse defect detection device for pipes according to claim 1, characterized in that: A handle (8) is connected to one side of the insert tube (4).

5. The transverse defect detection device for pipes according to claim 1 is characterized in that: The insert cylinder (4) is threadedly connected with a screw (13), and one end of the screw (13) abuts against the insert plate (14).

6. A transverse defect detection device for pipes according to claim 1, characterized in that: A placement box (6) is connected to one side of the deflection frame (5), and the detector (12) is arranged on the placement box (6).

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