Scanning device

By designing a concave frame and a servo motor-driven scanning device, the problem of fixing and cleaning weld seams in pipes of different diameters was solved, enabling precise scanning and cleaning of weld seams and improving the applicability and accuracy of the scanning device.

CN223883525UActive Publication Date: 2026-02-06DALIAN LANDI NONDESTRUCTIVE TESTING CO LTD
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Patent Information

Application Number
CN202520160032.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2026-02-06
Estimated Expiration
2035-01-23

AI Technical Summary

Technical Problem

Existing pipeline weld inspection devices cannot fix pipes of different diameters, and dirt easily adheres to the weld after welding, resulting in inaccurate inspection.

Method used

A scanning device comprising a concave frame, an operation panel, a scanning probe, and a servo motor was designed. Different pipe diameters are fixed by a combination structure of a movable ring, a connecting plate, and a pressing plate. Combined with the servo motor drive and the cleaning function of the water spray head, the device achieves precise scanning of the weld seam.

Benefits of technology

It enables stable scanning and efficient cleaning of weld seams in pipes of different diameters, improving the accuracy of the scanning.

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Abstract

The scanning device comprises a concave frame, an operation panel, a scanning probe and a servo motor, the operation panel is installed on the side face of the concave frame, supporting frames are fixed to the two ends of the interior of the concave frame, clamping blocks are fixed to the inner ends of the supporting frames, movable rings are arranged at the front end and the rear end of the middle of the concave frame, and the clamping blocks are fixed to the clamping blocks. Tooth blocks are evenly fixed to the surfaces of the movable rings, sliding grooves are formed in the side faces of the movable rings, connecting plates are evenly fixed between the two movable rings, a mounting plate is fixed to the side, located between the connecting plates, between the two movable rings, and a scanning probe is mounted at the inner end of the mounting plate. According to the scanning device, through the use of the adjusting screw rods and the extrusion plates on the surface connecting plate of the movable ring, the pipeline on the inner side of the movable ring can be extruded and fixed through the three sets of extrusion plates, and the device can conveniently adapt to scanning of welding seams of different pipelines in cooperation with meshing rotation between a connecting gear and a tooth block on the surface of the movable ring.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the related technical field of PE gas pipeline weld, concretely is a kind of scanning device. BACKGROUND

[0002] PE gas pipe needs to be welded when using, to ensure the prolonged use of pipeline, and the PE gas pipe after welding needs to be scanned in the weld of pipeline, to assess the engineering quality of pipeline by checking whether there is blowhole, incomplete penetration and non-fusion in the welded part of pipeline;

[0003] The existing pipeline weld scanning device is inconvenient to fix and scan different pipe diameters, and dirt is adhered to the welded pipe weld, which is inconvenient to clean and prone to inaccurate scanning. Therefore, a scanning device is proposed to solve the problems mentioned above. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of scanning device to solve the problems of the existing pipeline weld scanning device in the prior art, which is inconvenient to fix and scan different pipe diameters, and dirt is adhered to the welded pipe weld, which is inconvenient to clean and prone to inaccurate scanning.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a scanning device, comprising a concave frame, an operation panel, a scanning probe and a servo motor, the side surface of the concave frame is provided with an operation panel, the inside of the concave frame is fixed with a support frame at both ends, and the inner end of the support frame is fixed with a clamping block, the middle part of the concave frame is provided with a movable ring at both ends, and the surface of the movable ring is uniformly fixed with a tooth block, the side surface of the movable ring is provided with a sliding groove, two groups of movable rings are uniformly fixed with a connecting plate between them, one side between the connecting plates of the two groups of movable rings is fixed with a mounting plate, and the inner end of the mounting plate is installed with a scanning probe, the side surface of the support frame on one side of the inside of the concave frame is fixed with a servo motor, and the output end of the servo motor is fixed with a rotating shaft, the both ends of the rotating shaft are fixed with a connecting gear, the lower part of the concave frame is fixed with a water storage frame, and the inside of the water storage frame is installed with a water pump on one side, one end of the water pump is provided with a water suction pipe, and a dirt separation filter screen is installed in the water storage frame on the water suction pipe, the other end of the water pump is provided with a drain pipe, the middle part of the front and rear ends of the concave frame is fixed with an electric telescopic rod, and the upper part of the electric telescopic rod is fixed with a supporting plate.

[0006] Preferably, the support frame is arranged in the shape of a "concave" character, and the clamping block at the inner end of the support frame is connected to the sliding groove on the outer surface of the movable ring in a clamping and sliding manner, which facilitates the rotation of the movable ring on the clamping block inside the support frame.

[0007] Preferably, the connecting plate is provided with three groups of equilateral angles at the inner end of the movable ring, the surface side of the connecting plate is threadedly connected with an adjusting screw, and the lower side of the adjusting screw is rotationally connected with a pressing plate, so that the adjusting screw drives the lower pressing plate to move downward by rotating the adjusting screw.

[0008] Preferably, the pressing plate is provided in an arc shape, and the lower surface of the pressing plate is uniformly rotationally connected with a rotating ball, and the upper side of the pressing plate is fixedly connected with a sliding rod slidingly connected to the surface of the connecting plate, so that the rotating ball below the pressing plate is in contact with the surface of the pipeline.

[0009] Preferably, the connecting gear and the tooth block on the surface of the movable ring are in meshing connection, so that the device can rotate on the outer side of the pipeline by meshing the connecting gear and the tooth block on the surface of the movable ring, and the welding seam can be scanned conveniently.

[0010] Preferably, the other end of the drain pipe is connected to a water collecting pipe fixed between the two groups of movable rings, and the inner end of the water collecting pipe is provided with a water jet head, so that the welding seam of the pipeline can be washed by the water jet head on the surface of the water collecting pipe, and the accuracy of the scanning of the welding seam of the pipeline is improved.

[0011] Compared with the prior art, the scanning device has the advantages that,

[0012] The adjusting screw and the pressing plate on the surface of the connecting plate of the movable ring are used to fix the pipeline on the inner side of the movable ring by the three groups of pressing plates, and the meshing rotation between the connecting gear and the tooth block on the surface of the movable ring is used to adapt the scanning of the welding seam of different pipelines.

[0013] The water pump in the water storage frame and the water jet head at the inner end of the water collecting pipe are used to wash the surface of the welding seam of the pipeline when the movable ring rotates back and forth, so that the accuracy of the scanning of the welding seam of the pipeline is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view structural schematic diagram of the utility model;

[0015] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0016] Figure 3 It is a front view structural schematic diagram of the utility model;

[0017] Figure 4 It is a side view structural schematic diagram of the utility model;

[0018] Figure 5 It is a front view structural schematic diagram of the utility model.

[0019] In the figure: 1, concave frame; 2, operation panel; 3, support frame; 4, clamping block; 5, movable ring; 6, tooth block; 7, sliding groove; 8, connecting plate; 9, adjusting screw; 10, extrusion plate; 11, rotating ball; 12, sliding rod; 13, mounting plate; 14, scanning probe; 15, servo motor; 16, rotating shaft; 17, connecting gear; 18, water storage frame; 19, water pump; 20, water suction pipe; 21, dirt separation filter frame net; 22, drain pipe; 23, water collecting pipe; 24, water spraying head; 25, electric telescopic rod; 26, support plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1-5 The utility model provides a kind of technical solutions: a scanning device, including concave frame 1, operation panel 2, scanning probe 14 and servo motor 15, operation panel 2 is installed in the side of concave frame 1, both ends in the inside of concave frame 1 are fixed with support frame 3, and the inner end of support frame 3 is fixed with clamping block 4, the middle part of concave frame 1 is provided with movable ring 5 at two ends, and the surface of movable ring 5 is uniformly fixed with tooth block 6, support frame 3 is arranged in the shape of "concave", and the clamping block 4 of the inner end of support frame 3 and the sliding groove 7 of the outer surface of movable ring 5 form snap-on sliding connection, can conveniently movable ring 5 is engaged on the clamping block 4 in the inside of support frame 3 and rotates, sliding groove 7 is opened in the side of movable ring 5, two groups of movable ring 5 are uniformly fixed with connecting plate 8, connecting plate 8 is provided with three groups at the inner end of movable ring 5 at equal angles, the surface of connecting plate 8 is screw-connected with adjusting screw 9 on one side, and adjusting screw 9 is rotatably connected with extrusion plate 10 below, can be moved downwards by rotating adjusting screw 9, so that adjusting screw 9 drives the extrusion plate 10 below to move downwards, extrusion plate 10 is arranged in the shape of arc, and the lower surface of extrusion plate 10 is rotatably connected with rotating ball 11, the upper side of extrusion plate 10 is fixed with sliding rod 12 slidingly connected on the surface of connecting plate 8, to facilitate the surface contact of rotating ball 11 below extrusion plate 10 with pipeline;

[0022] Please refer to Figures 1-5The side between the two groups of movable rings 5 between the connecting plates 8 is fixed with a mounting plate 13, and the inner end of the mounting plate 13 is provided with a scanning probe 14; the side of the support frame 3 inside the concave frame 1 is fixed with a servo motor 15, and the output end of the servo motor 15 is fixed with a rotating shaft 16; the two ends of the rotating shaft 16 are fixed with connecting gears 17; the connecting gears 17 are connected with the toothed blocks 6 on the surface of the movable rings 5 in a meshing manner; the device can rotate on the outside of the pipeline, and the welding seam can be scanned conveniently; the lower side of the concave frame 1 is fixed with a water storage frame 18, and the inner side of the water storage frame 18 is provided with a water pump 19; one end of the water pump 19 is provided with a water suction pipe 20, and the water suction pipe 20 is provided with a dirt separation filter screen 21 inside the water storage frame 18; the other end of the water pump 19 is provided with a water discharge pipe 22, and the other end of the water discharge pipe 22 is connected to a water collecting pipe 23 fixed between the two groups of movable rings 5; the inner end of the water collecting pipe 23 is provided with a water spraying head 24; the water spraying head 24 on the surface of the water collecting pipe 23 can be used to flush the welding seam of the pipeline, and the accuracy of the welding seam of the pipeline can be improved; the middle part of the front and rear ends of the concave frame 1 is fixed with an electric telescopic rod 25, and the upper side of the electric telescopic rod 25 is fixed with a supporting plate 26; the pipeline can be supported by the supporting plate 26.

[0023] Working principle: first, the welding seam of the PE gas pipeline is located in the middle of the movable ring 5, and the supporting plate 26 on the upper side of the electric telescopic rod 25 is used to support the pipeline by opening the electric telescopic rod 25 at both ends of the concave frame 1; the adjusting screw 9 on the surface of the connecting plate 8 is rotated, so that the adjusting screw 9 moves in a threaded manner on the surface of the connecting plate 8, so that the extrusion plate 10 below the adjusting screw 9 moves downward, and the rotatable rotating ball 11 on the lower surface of the extrusion plate 10 can be in contact with the outer wall of the pipeline;

[0024] Before scanning, the servo motor 15 is turned on, the servo motor 15 drives the connecting gears 17 to rotate through the rotating shaft 16, the connecting gears 17 drive the toothed blocks 6 on the surface of the movable ring 5 to mesh and rotate, the movable ring 5 is clamped and slides on the clamping blocks 4 at both ends inside the support frame 3 inside the concave frame 1, the water pump 19 inside the water storage frame 18 is turned on, the water pump 19 guides the internal water into the water collecting pipe 23 through the water suction pipe 20 and the water discharge pipe 22, the water spraying head 24 on the surface of the water collecting pipe 23 sprays water to flush the welding seam of the pipeline, and the scanning probe 14 on the surface of the mounting plate 13 can be used to scan the welding seam of the pipeline after flushing; the scanning probe 14 in the present scheme has the same structure as the probe in the scanning device for phased array ultrasonic detection of pipeline welds disclosed in patent publication No. CN212060066U; this is the working principle of the scanning device.

[0025] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A scanning device comprising a concave stand (1), an operating panel (2), a scanning probe (14) and a servo motor (15), characterized in that: The operation panel (2) is installed on the side of the concave frame (1), both ends of the concave frame (1) are fixedly provided with support frames (3), the inner end of the support frame (3) is fixedly provided with a clamping block (4), both ends of the middle part of the concave frame (1) are provided with movable rings (5), the surface of the movable ring (5) is uniformly fixedly provided with a tooth block (6), the side of the movable ring (5) is provided with a sliding groove (7), two groups of the movable ring (5) are uniformly fixedly provided with connecting plates (8), one side of the connecting plate (8) between the two groups of the movable ring (5) is fixedly provided with a mounting plate (13), the inner end of the mounting plate (13) is mounted with a scanning probe (14), the side of the support frame (3) on one side of the inside of the concave frame (1) is fixedly provided with a servo motor (15), the output end of the servo motor (15) is fixedly provided with a rotating shaft (16), both ends of the rotating shaft (16) are fixedly provided with connecting gears (17), the lower part of the concave frame (1) is fixedly provided with a water storage frame (18), one side of the inside of the water storage frame (18) is mounted with a water pump (19), one end of the water pump (19) is provided with a water suction pipe (20), the water suction pipe (20) is mounted with a dirt separation filter screen (21) located in the inside of the water storage frame (18), the other end of the water pump (19) is provided with a drain pipe (22), the middle part of both ends of the concave frame (1) is fixedly provided with an electric telescopic rod (25), the upper part of the electric telescopic rod (25) is fixedly provided with a supporting plate (26).

2. A scanning device according to claim 1, characterized in that: The support frame (3) is arranged in a "concave" shape, the clamping block (4) at the inner end of the support frame (3) and the sliding groove (7) on the outer surface of the movable ring (5) are in clamping and sliding connection.

3. A scanning device according to claim 1, wherein: The connecting plate (8) is provided with three groups at equiangular positions of the inner end of the movable ring (5), the surface of the connecting plate (8) is threadedly connected with an adjusting screw rod (9), and the lower part of the adjusting screw rod (9) is rotatably connected with an extrusion plate (10).

4. A scanning device according to claim 3, wherein: The extrusion plate (10) is arranged in an arc shape, and the lower surface of the extrusion plate (10) is rotatably connected with rotating balls (11), and the other side of the upper part of the extrusion plate (10) is fixedly provided with a sliding rod (12) slidably connected to the surface of the connecting plate (8).

5. A scanning device according to claim 1, characterized in that: The connecting gear (17) and the tooth block (6) on the surface of the movable ring (5) are in meshing connection.

6. A scanning device according to claim 1, characterized in that: The other end of the drain pipe (22) is connected to a water collecting pipe (23) fixed between the two groups of the movable ring (5), and the inner end of the water collecting pipe (23) is mounted with a water spraying head (24).

Citation Information

Patent Citations

  • Scanning device for phased array ultrasonic detection of pipeline weld joint

    CN212060066U