Pipeline welding seam liquid penetration detection device

Abstract

The utility model relates to the technical field of pipeline detection, in particular to a pipeline welding seam liquid penetration detection device which comprises a detection platform, a positioning assembly is arranged in the detection platform, and the positioning assembly comprises a limiting groove, a bidirectional motor, a bidirectional screw rod, a positioning rod, a limiting plate, a positioning block, a clamping plate, an inserting pipe and a sealing gasket. A pipeline body is arranged on the upper side of the detection platform, a first connecting block is fixedly connected to the left side surface of the left clamping plate, a pressurizing hose and a pressurizing pump are arranged on the left side of the first connecting block, a second connecting block is fixedly connected to the right side surface of the right clamping plate, and a water inlet hose and a suction pump are arranged on the right side of the second connecting block; the two-way motor drives the clamping plates on the two sides to slide and draw close, the two ends of the pipeline body are automatically clamped and fixed, the operation convenience is improved, the pipeline fixing speed is increased, the sealing performance of the two ends of the pipeline body is improved, meanwhile, the pressure pump pressurizes the interior of the pipeline, the states of pipeline weld joints under different water pressures are detected, and the detection effect is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline detection technical field, concretely relates to a pipeline weld liquid penetrant testing device. BACKGROUND

[0002] The pipeline is connected with the valve and so on for conveying gas, liquid or fluid with solid particles, when the pipeline length is insufficient, two groups of pipelines need to be welded together for use, in order to improve the safety of the pipeline in the process of using, the pipeline weld needs to be detected.

[0003] Among them, the announcement number CN221945837U discloses a kind of pipeline weld liquid penetrant testing device, by being provided with motor, gear, clamping assembly, pull rod and injection cylinder, by clamping assembly to pipe clamping fixed, then by pull rod, liquid in injection cylinder is injected into pipe, in by motor and gear drive clamping assembly and pipe rotation, so that weld is in contact with liquid constantly, to carry out weld penetration detection to pipe.

[0004] The device in the process of using, two groups of moving plate are pushed to inside, the both ends of pipe are blocked, then liquid is injected into pipe interior to carry out detection, operation process is more complicated, detection efficiency is lower, and because moving plate lacks effective locking device, liquid is easy to seep from the both ends of pipe in the process of injecting liquid, lead to the content of internal liquid is less, and the detection precision of weld is lower.

[0005] Therefore, it is necessary to invent a kind of pipeline weld liquid penetrant testing device to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of pipeline weld liquid penetrant testing device to solve the problem that liquid is easy to seep from the both ends of pipe in the process of injecting liquid, lead to the content of internal liquid is less, and the detection precision of weld is lower.

[0007] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a kind of pipeline weld liquid penetrant testing device, including detection platform, the inside of detection platform is provided with positioning assembly, positioning assembly includes limiting slot, bidirectional motor, bidirectional screw rod, positioning rod, limiting plate, positioning block, clamping plate, spigot, sealing gasket, the upper side of detection platform is provided with pipeline body, the left side surface of left side clamping plate is fixedly connected with first connecting block, the left side of first connecting block is provided with pressurizing hose and pressurizing pump, the right side surface of right side clamping plate is fixedly connected with second connecting block, the right side of second connecting block is provided with water inlet hose and suction pump.

[0008] By adopting the above technical scheme, the output end of the bidirectional motor drives the bidirectional screw to rotate forward, the bidirectional screw drives the two limiting plates, the positioning blocks and the clamping plates on the two sides to slide and close to each other, and the two ends of the pipeline body are automatically clamped and fixed, the pipeline fixing speed is improved, the operation convenience is improved, the sealing performance of the two ends of the pipeline body is improved in cooperation with the sealing gaskets, the detection liquid is pumped into the pipeline body by the suction pump, the pipeline is pressurized by the pressurizing pump, the state of the pipeline weld under different water pressures is detected, and the detection effect is effectively improved.

[0009] Optionally, the upper surface of the detection platform is provided with two groups of limiting grooves, the bidirectional motor is fixedly installed at the right end of the detection platform, the two ends of the bidirectional screw are rotatably connected with the inner walls on the left and right sides of the detection platform, the output end of the bidirectional motor is fixedly connected with the right end of the bidirectional screw, and the positioning rods are fixedly connected between the inner walls on the left and right sides of the detection platform and located at the positions in front of and behind the bidirectional screw.

[0010] By adopting the above technical scheme, the bidirectional motor is used to drive the bidirectional screw to rotate forward and reverse.

[0011] Optionally, the left and right ends of the two groups of limiting grooves are slidably connected with limiting plates, the lower ends of the two groups of limiting plates on the left and right sides are fixedly connected with positioning blocks, the middle parts of the two groups of positioning blocks are threadedly connected with the left and right ends of the bidirectional screw, and the front and rear ends of the two groups of positioning blocks are slidably connected with the surfaces of the two groups of positioning rods.

[0012] By adopting the above technical scheme, the positioning rods limit the positions of the positioning blocks, the stability of the positioning blocks in the sliding process is improved, the two positioning blocks on the two sides slide and close to each other in the forward rotation process of the bidirectional screw, and the two positioning blocks on the two sides slide and separate from each other in the reverse rotation process of the bidirectional screw.

[0013] Optionally, the upper ends of the two groups of limiting plates on the left and right sides are fixedly connected with clamping plates, the surfaces of the sides close to each other of the two groups of clamping plates are fixedly connected with sealing gaskets, and the centers of the two groups of clamping plates are fixedly connected with plug-in pipes.

[0014] By adopting the above technical scheme, the two clamping plates slide and close to each other, the two ends of the pipeline body are blocked, and the plug-in pipes are inserted into the two ends of the pipeline body.

[0015] Optionally, the left end of the first connecting block is fixedly connected with a pressurizing valve, the front end of the pressurizing hose is fixedly connected with the left end of the pressurizing valve, the rear end of the pressurizing hose is fixedly connected with the output end of the pressurizing pump, the upper end of the first connecting block is fixedly connected with an overflow pipeline, and the surface of the overflow pipeline is fixedly installed with a sealing valve.

[0016] By adopting the technical scheme, the pressurizing pump pressurizes the inside of the pipeline body through the pressurizing hose, and the overflow pipeline is used for discharging the air in the inside of the pipeline body, so that the inside of the pipeline body is filled with liquid.

[0017] Optionally, the right end of the second connecting block is fixedly connected with a water inlet valve, the front end of the water inlet hose is fixedly connected with the right end of the water inlet valve, and the rear end of the water inlet hose is fixedly connected with the water outlet of the suction pump.

[0018] By adopting the technical scheme, the suction pump inputs the detection liquid into the inside of the pipeline body through the water inlet hose.

[0019] Optionally, the lower side of the weld of the surface of the pipeline body is provided with a first water receiving box, the rear end of the first water receiving box is hingedly connected with a second water receiving box, the side wall of the first water receiving box is provided with a flow guide hole, and the rear end of the flow guide hole is fixedly connected with a flow guide pipe.

[0020] By adopting the technical scheme, the first water receiving box and the second water receiving box are used for receiving the liquid dripping at the weld, and the liquid is taken out through the flow guide pipe, so that the water stain is prevented from dripping on the surface of the detection platform.

[0021] Optionally, the lower surface of the pipeline body is provided with a plurality of support blocks, the lower end of the first water receiving box and the support block is fixedly connected with a limiting block, and the limiting block and the limiting groove are slidingly connected.

[0022] By adopting the technical scheme, the support block is used for supporting the pipeline body, and the support block and the first water receiving box can slide left and right on the surface of the detection platform.

[0023] In the above technical scheme, the technical effects and advantages of the utility model are provided:

[0024] 1. The output end of the bidirectional motor drives the bidirectional screw to rotate in the positive direction, the bidirectional screw drives the limiting plates, the positioning blocks and the clamping plates on both sides to slide and close to each other, the both ends of the pipeline body are automatically clamped and fixed, the pipeline fixing speed is improved, the operation convenience is improved, the stability of the pipeline body is effectively improved, the sealing property of the both ends of the pipeline body is improved in cooperation with the sealing gasket, and the detection effect is effectively improved.

[0025] 2. The liquid in the inside of the pipeline body is pressurized by the pressurizing pump, the inside of the pipeline body is in a high-pressure state, the weld in the pipeline body is detected under different pressure states, and the detection precision is improved.

[0026] 3. The first water receiving box and the second water receiving box are used for receiving the liquid dripping at the weld, and the liquid is taken out through the flow guide pipe, so that the water stain is prevented from dripping on the surface of the detection platform, and the cleanliness of the surface of the detection platform is improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is the whole structure schematic view of the utility model;

[0028] Figure 2 It is the detection platform external structure schematic view of the utility model;

[0029] Figure 3 It is the detection platform internal structure schematic view of the utility model;

[0030] Figure 4 It is the first connecting block structure schematic view of the utility model;

[0031] Figure 5 It is the second connecting block structure schematic view of the utility model;

[0032] Figure 6 It is the water receiving box structure schematic view of the utility model.

[0033] Reference signs explanation:

[0034] 1, detection platform; 11, limit slot; 12, bidirectional motor; 13, bidirectional screw; 14, positioning rod; 2, limit plate; 21, positioning block; 22, clamping plate; 23, plug-in pipe; 24, sealing gasket; 3, first connecting block; 31, pressurizing valve; 32, pressurizing hose; 33, pressurizing pump; 34, overflow pipeline; 35, sealing valve; 4, second connecting block; 41, water inlet valve; 42, water inlet hose; 43, suction pump; 5, first water receiving box; 51, flow guide hole; 52, flow guide pipe; 53, second water receiving box; 54, support block; 55, limit block; 6, pipeline body. DETAILED DESCRIPTION

[0035] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model will be introduced further in detail below in conjunction with the drawings.

[0036] The utility model provides a Figures 1 to 3The pipeline weld liquid penetrant testing device shown, including detection platform 1, the inside of detection platform 1 is provided with positioning assembly, positioning assembly includes limiting groove 11, bidirectional motor 12, bidirectional screw 13, positioning rod 14, limiting plate 2, positioning block 21, clamping plate 22, plug-in pipe 23, sealing gasket 24, the upper surface of detection platform 1 is provided with two groups of limiting groove 11, bidirectional motor 12 is fixedly installed at the right end of detection platform 1, the two ends of bidirectional screw 13 are rotatably connected with the inner walls of the left and right sides of detection platform 1, the output end of bidirectional motor 12 is fixedly connected with the right end of bidirectional screw 13, the positioning rod 14 is fixedly connected between the left and right inner walls of detection platform 1 and located at the front and rear sides of bidirectional screw 13, the left and right ends of the two groups of limiting groove 11 are slidably connected with limiting plate 2, the lower end of the two groups of limiting plate 2 on the left and right sides is fixedly connected with positioning block 21, the middle part of the two groups of positioning block 21 is threadedly connected with the left and right ends of bidirectional screw 13, the front and rear ends of the two groups of positioning block 21 are slidably connected with the surfaces of the two groups of positioning rod 14, the upper side of detection platform 1 is provided with pipeline body 6, the lower surface of pipeline body 6 is provided with a plurality of supporting blocks 54, the upper end of the two groups of limiting plate 2 on the left and right sides is fixedly connected with clamping plate 22, the surface of the side close to the left and right two groups of clamping plate 22 is fixedly connected with sealing gasket 24, the center of the two groups of clamping plate 22 is fixedly connected with plug-in pipe 23.

[0037] In use, the welded pipeline body 6 is erected on the surface of the supporting block 54, the bidirectional motor 12 is started at this time, the output end of the bidirectional motor 12 drives the bidirectional screw 13 to rotate forward, and then drives the two ends of the positioning block 21 to slide inward and close at the same time, the positioning block 21 on the two sides drives the limiting plate 2 on the surface to slide inward and close at the same time in the limiting groove 11, and then drives the clamping plate 22 on the two sides to slide inward and close at the same time, the clamping plate 22 is inserted into the two ends of the pipeline body 6 in the process of sliding, and the sealing gasket 24 is tightly abutted with the two ends of the pipeline body 6 at the same time, the two ends of the pipeline body 6 are blocked, the sealing property of the two ends of the pipeline body 6 is improved, and the fixing speed of the pipeline body 6 is improved.

[0038] Refer to Figure 4 And Figure 5The left surface of the left clamping plate 22 is fixedly connected with a first connecting block 3, the left side of the first connecting block 3 is provided with a pressurizing hose 32 and a pressurizing pump 33, the right surface of the right clamping plate 22 is fixedly connected with a second connecting block 4, the right side of the second connecting block 4 is provided with a water inlet hose 42 and a suction pump 43, the left end of the first connecting block 3 is fixedly connected with a pressurizing valve 31, the front end of the pressurizing hose 32 is fixedly connected with the left end of the pressurizing valve 31, the rear end of the pressurizing hose 32 is fixedly connected with the output end of the pressurizing pump 33, the upper end of the first connecting block 3 is fixedly connected with an overflow pipeline 34, the surface of the overflow pipeline 34 is fixedly installed with a sealing valve 35, the right end of the second connecting block 4 is fixedly connected with a water inlet valve 41, the front end of the water inlet hose 42 is fixedly connected with the right end of the water inlet valve 41, and the rear end of the water inlet hose 42 is fixedly connected with the water outlet of the suction pump 43.

[0039] Specifically, after sealing both ends of the pipeline body 6, first, the sealing valve 35 and the water inlet valve 41 are opened, then the suction pump 43 is started, the suction pump 43 injects liquid into the inside of the pipeline body 6 through the water inlet hose 42 and the right plug-in pipe 23, in the process of injecting liquid, the air in the inside of the pipeline body 6 is discharged through the overflow pipeline 34, until the inside of the pipeline body 6 is filled with liquid, at this time, the sealing valve 35 and the water inlet valve 41 are closed, then the pressurizing valve 31 is opened, at this time, the pressurizing pump 33 pressurizes the inside of the pipeline body 6 through the pressurizing hose 32, so that the pipeline body 6 is detected in a high-pressure environment, not only the welds are monitored for whether there are gaps, but also the pressure-bearing capacity of the welds is detected, so that the detection precision of the pipeline body 6 is improved.

[0040] Referring to Figure 1 , Figure 2 and Figure 6 , the lower side of the welds on the surface of the pipeline body 6 is provided with a first water receiving box 5, the rear end of the first water receiving box 5 is hingedly connected with a second water receiving box 53, the side wall of the first water receiving box 5 is provided with a flow guide hole 51, the rear end of the flow guide hole 51 is fixedly connected with a flow guide pipe 52, the lower end of the first water receiving box 5 and the support block 54 are both fixedly connected with a limiting block 55, and the limiting block 55 is slidably connected with the limiting groove 11.

[0041] In addition, the first water receiving box 5 and the second water receiving box 53 are both semicircular, before the pipeline body 6 is detected, the second water receiving box 53 is rotated forward to cover the upper side of the first water receiving box 5, the first water receiving box 5 and the second water receiving box 53 cooperate to shield the welds of the pipeline body 6, when there are gaps in the welds, the internal liquid will drip into the inside of the first water receiving box 5 and the second water receiving box 53, then the liquid is discharged through the flow guide hole 51 and the flow guide pipe 52, so that the liquid is prevented from dripping onto the surface of the detection platform 1, and the cleanliness of the surface of the detection platform 1 is improved.

[0042] Meanwhile, the limiting block 55 slides in the limiting groove 11, the position of the supporting block 54, the first water receiving box 5 and the second water receiving box 53 can be adjusted, and different length pipes and different position welds can be supported and detected.

[0043] The utility model discloses working principle: the output end of bidirectional motor 12 drive bidirectional screw rod 13 positive rotation, and bidirectional screw rod 13 drive both sides'stop plate 2, positioning block 21 and the clamping plate 22 opposite sliding close, and the both ends of pipeline body 6 are fixed with clamping, improve the fixed speed of pipeline body 6, improve the operation convenience, and effectively the stability of pipeline body 6, cooperate with sealing washer 24 and improve the sealing of the both ends of pipeline body 6, effectively improve the detection effect, through the utilization of pressurizing pump 33 to the liquid in the inside of pipeline body 6 is pressurized simultaneously, makes the inside of pipeline body 6 be in high pressure state, effectively detects the weld in pipeline body 6 under different pressure state, improves the detection precision.

[0044] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the utility model and do not limit the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements fall within the scope of the claimed utility model.

Claims

1. A device for liquid penetrant testing of pipe welds, comprising a testing platform (1), characterised in that: The inside of the detection platform (1) is provided with a positioning assembly, which comprises a limiting groove (11), a bidirectional motor (12), a bidirectional screw rod (13), a positioning rod (14), a limiting plate (2), a positioning block (21), a clamping plate (22), a plug-in pipe (23), a sealing gasket (24), the upper side of the detection platform (1) is provided with a pipeline body (6), the left surface of the left clamping plate (22) is fixedly connected with a first connecting block (3), the left side of the first connecting block (3) is provided with a pressure hose (32) and a pressure pump (33), the right surface of the right clamping plate (22) is fixedly connected with a second connecting block (4), the right side of the second connecting block (4) is provided with a water inlet hose (42) and a suction pump (43).

2. A device for the liquid penetrant testing of pipe welds according to claim 1, characterised in that: The upper surface of the detection platform (1) is provided with two limiting grooves (11), the bidirectional motor (12) is fixedly installed at the right end of the detection platform (1), the two ends of the bidirectional screw rod (13) are rotatably connected with the inner walls of the left and right sides of the detection platform (1), the output end of the bidirectional motor (12) is fixedly connected with the right end of the bidirectional screw rod (13), and the positioning rods (14) are fixedly connected between the left and right inner walls of the detection platform (1) and located at the front and rear sides of the bidirectional screw rod (13).

3. A device for the liquid penetrant testing of pipe welds as claimed in claim 1, wherein: The left and right ends of the two limiting grooves (11) are slidably connected with the limiting plates (2), the lower ends of the two limiting plates (2) on the left and right sides are fixedly connected with the positioning blocks (21), the middle parts of the two positioning blocks (21) are threadedly connected with the left and right ends of the bidirectional screw rod (13), and the front and rear ends of the two positioning blocks (21) are slidably connected with the surfaces of the two positioning rods (14).

4. A device for the liquid penetrant testing of pipe welds as claimed in claim 1, wherein: The upper ends of the two limiting plates (2) on the left and right sides are fixedly connected with the clamping plates (22), the side surfaces of the two clamping plates (22) close to each other are fixedly connected with the sealing gaskets (24), and the centers of the two clamping plates (22) are fixedly connected with the plug-in pipes (23).

5. A device for the liquid penetrant testing of pipe welds as defined in claim 1, wherein: The left end of the first connecting block (3) is fixedly connected with a pressure valve (31), the front end of the pressure hose (32) is fixedly connected with the left end of the pressure valve (31), the rear end of the pressure hose (32) is fixedly connected with the output end of the pressure pump (33), the upper end of the first connecting block (3) is fixedly connected with an overflow pipeline (34), and the surface of the overflow pipeline (34) is fixedly installed with a sealing valve (35).

6. A device for the liquid penetrant testing of pipe welds as defined in claim 1, wherein: The right end of the second connecting block (4) is fixedly connected with a water inlet valve (41), the front end of the water inlet hose (42) is fixedly connected with the right end of the water inlet valve (41), and the rear end of the water inlet hose (42) is fixedly connected with the drain port of the suction pump (43).

7. A device for the liquid penetrant testing of pipe welds as defined in claim 1, wherein: The lower side of the weld of the surface of the pipeline body (6) is provided with a first water receiving box (5), the rear end of the first water receiving box (5) is hingedly connected with a second water receiving box (53), the side wall of the first water receiving box (5) is provided with a flow guide hole (51), and the rear end of the flow guide hole (51) is fixedly connected with a flow guide pipe (52).

8. A device for the liquid penetrant testing of pipe welds according to claim 7, characterised in that: The lower surface of the pipeline body (6) is provided with a plurality of groups of supporting blocks (54), the first water receiving box (5) and the lower end of the supporting block (54) are fixedly connected with a limiting block (55), and the limiting block (55) is in sliding connection with the limiting groove (11).

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