Pipe wall internal defect detection device

Abstract

The utility model relates to the field of detection devices, in particular to a pipe wall internal defect detection device. The utility model provides a pipe wall internal defect detection device which can pressurize a water pipe and ensure the detection accuracy of internal defects of a water pipe wall. A pipe wall internal defect detection device comprises a water pipe, a connector, a spherical valve and a pressure mechanism, the connector is clamped on the water pipe, the upper portion of the connector is rotatably connected with the spherical valve, and the pressure mechanism capable of pressurizing the water pipe is arranged on the connector. The connecting block is pulled while the spherical valve is opened, the first sliding rod is driven to slide forwards on the supporting cylinder, the spring is stretched, then the spherical valve is closed, the spring is rebounded, and the first sliding rod is driven to move backwards, so that the effects of pressurizing the water pipe and ensuring the detection accuracy of internal defects of the water pipe wall are achieved.

Description

Technical Field

[0001] The utility model relates to the field of detection devices, in particular to a pipe wall internal defect detection device. Background Art

[0002] A pipeline is a device connected by pipes, pipe connectors and valves for transporting gas, liquid or fluid with solid particles. After the pipeline is produced, in order to ensure the sealing of the pipeline, the inner wall of the pipeline needs to be inspected for defects.

[0003] For example, a pipeline leakage detection device with a publication (announcement) number of CN218095485U includes a distance adjustment component, on which two water storage tanks arranged in parallel are installed, and the distance adjustment component is used to adjust the distance between the two water storage tanks, an electric push rod is installed inside the water storage tank, a piston is fixedly installed at the output end of the electric push rod, the piston and the inner wall of the water storage tank are in clearance, a fixed pipe is fixed through the water storage tank, a connecting tube is fixedly sleeved on the outside of one end of the fixed tube, and a sealing ring is fixed inside the connecting tube. The existing pipeline detection device is to guide water into the water pipe to be tested through the water storage tank, and then use the air pressure gauge and the water pressure gauge to determine whether the pipeline is leaking. However, when the pressure in the pipeline to be tested is insufficient, it may be difficult for water to flow out from the gap on the pipeline to be tested, which may easily lead to inaccurate detection results of internal defects in the water pipe wall, which is relatively inconvenient.

[0004] Therefore, a pipe wall internal defect detection device has been developed that can pressurize a water pipe to ensure the accuracy of the internal defect detection of the water pipe wall. Utility Model Content

[0005] In order to overcome the disadvantage of existing pipeline detection devices that when the pressure in the pipeline to be tested is insufficient, water may find it difficult to flow out from the gap on the pipeline to be tested, which may easily lead to inaccurate detection results of internal defects in the water pipe wall, the utility model provides a pipe wall internal defect detection device that can pressurize the water pipe to ensure the accuracy of internal defect detection of the water pipe wall.

[0006] The technical solution is: a device for detecting internal defects of a pipe wall, comprising a water pipe, a connector, a ball valve and a pressure mechanism, wherein the connector is clamped on the water pipe, the ball valve is rotatably connected to the upper part of the connector, and the connector is provided with the pressure mechanism capable of pressurizing the water pipe.

[0007] Furthermore, the pressure mechanism includes a support tube, a connecting block, a first sliding rod and a spring. The support tube is connected to the front side of the lower part of the connector, the first sliding rod is slidably connected to the support tube, the connecting block is connected to the front side of the first sliding rod, and the spring is connected between the connecting block and the support tube. When the ball valve is opened, the connecting block is pulled to drive the first sliding rod to slide forward on the support tube, the spring is stretched, and then the ball valve is closed, and the spring rebounds to drive the first sliding rod to move backward.

[0008] Furthermore, it also includes a sealing mechanism, which includes a sliding sleeve, a second sliding rod, an adjusting screw, a piston plate and an airbag, the left and right parts of the connector are both slidably connected to the second sliding rod, the sliding sleeve is connected between the lower sides of the second sliding rod, the sliding sleeve is located between the water pipe and the connector, the front side of the sliding sleeve is threadedly connected to the adjusting screw, the rear side of the adjusting screw is rotatably connected to the piston plate, the piston plate is slidably connected to the sliding sleeve, the airbag is connected to the sliding sleeve, the adjusting screw is rotated to make the piston plate slide backward on the sliding sleeve to push the gas into the airbag, so that the airbag expands.

[0009] Furthermore, the spherical valve is provided with a handle.

[0010] Furthermore, a gripping groove is provided on the connecting block.

[0011] Furthermore, the adjusting screw is provided with a knob.

[0012] The beneficial effects of the utility model are as follows: 1. The utility model opens the ball valve and pulls the connecting block at the same time, driving the first slide bar to slide forward on the support tube, stretching the spring, and then closing the ball valve, and then making the spring rebound, driving the first slide bar to move backward, thereby achieving the effect of pressurizing the water pipe and ensuring the accuracy of the internal defect detection of the water pipe wall.

[0013] 2. The utility model rotates the adjusting screw to make the piston slide backward on the sliding sleeve to push the gas into the airbag, causing the airbag to expand, thereby achieving the effect of being able to seal the water pipe and the connector to prevent water from flowing out of the water pipe and affecting the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model.

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure of the pressure mechanism of the utility model.

[0017] Figure 4 It is a cross-sectional view of the pressure mechanism of the utility model.

[0018] Figure 5 It is a three-dimensional structural schematic diagram of the sealing mechanism of the utility model.

[0019] Figure 6 It is a cross-sectional view of the sealing mechanism of the utility model.

[0020] Figure numbers: 1_water pipe, 2_connector, 3_ball valve, 4_pressure mechanism, 41_support cylinder, 42_connecting block, 43_first sliding rod, 44_spring, 5_sealing mechanism, 51_sliding sleeve, 52_second sliding rod, 53_adjusting screw, 54_piston plate, 55_air bag. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] A device for detecting internal defects of a pipe wall, such as Figure 1 and Figure 2 As shown, it includes a water pipe 1, a connector 2, a ball valve 3 and a pressure mechanism 4. The connector 2 is clamped on the water pipe 1, and the ball valve 3 is rotatably connected to the upper part of the connector 2. The ball valve 3 is provided with a handle to facilitate the control of opening and closing, and the pressure mechanism 4 is provided on the connector 2.

[0023] like Figure 1 , Figure 3 and Figure 4 As shown, the pressure mechanism 4 includes a support tube 41, a connecting block 42, a first slide rod 43 and a spring 44. The support tube 41 is connected to the front side of the lower part of the connector 2. The first slide rod 43 is slidably connected to the support tube 41. The front side of the first slide rod 43 is connected to the connecting block 42. A gripping groove is provided on the connecting block 42 for easy gripping. The spring 44 is connected between the connecting block 42 and the support tube 41.

[0024] When using the utility model, first connect the connector 2 to the water pipe 1, then rotate and open the ball valve 3 to allow water to flow into the water pipe 1, and pull the connecting block 42 while opening the ball valve 3, driving the first slide bar 43 to slide forward on the support tube 41, and the spring 44 is stretched. Then, close the ball valve 3, and then make the spring 44 rebound, driving the first slide bar 43 to move backward, thereby pressurizing the water pipe 1 and ensuring the accuracy of the internal defect detection of the water pipe 1 wall.

[0025] like Figure 1 , Figure 5 and Figure 6 As shown, it also includes a sealing mechanism 5, which includes a sliding sleeve 51, a second sliding rod 52, an adjusting screw 53, a piston plate 54 and an air bag 55. The left and right parts of the connector 2 are both slidably connected with the second sliding rod 52, the sliding sleeve 51 is connected between the lower sides of the second sliding rod 52, the sliding sleeve 51 is located between the water pipe 1 and the connector 2, the front side of the sliding sleeve 51 is threadedly connected with the adjusting screw 53, the adjusting screw 53 is provided with a knob for easy adjustment, the rear side of the adjusting screw 53 is rotatably connected with the piston plate 54, the piston plate 54 is slidably connected to the sliding sleeve 51, and the sliding sleeve 51 is connected with the air bag 55.

[0026] The sealing mechanism 5 of the device can be used to seal the water pipe 1 and the connector 2. The second sliding rod 52 is slid to make the sliding sleeve 51 located between the water pipe 1 and the connector 2. Then, the adjusting screw 53 is rotated to make the piston plate 54 slide backward on the sliding sleeve 51 to push the gas into the airbag 55, so that the airbag 55 expands, thereby sealing the water pipe 1 and the connector 2 and preventing water from flowing out of the water pipe 1 and affecting the detection accuracy.

[0027] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A device for detecting internal defects of a pipe wall, characterized in that: The invention comprises a water pipe (1), a connector (2), a ball valve (3) and a pressure mechanism (4); the connector (2) is clamped on the water pipe (1); the ball valve (3) is rotatably connected to the upper part of the connector (2); and the pressure mechanism (4) capable of pressurizing the water pipe (1) is provided on the connector (2).

2. A pipe wall internal defect detection device according to claim 1, characterized in that: The pressure mechanism (4) comprises a support tube (41), a connection block (42), a first slide bar (43) and a spring (44); the support tube (41) is connected to the front side of the lower part of the connector (2); the first slide bar (43) is slidably connected to the support tube (41); the connection block (42) is connected to the front side of the first slide bar (43); the spring (44) is connected between the connection block (42) and the support tube (41); when the ball valve (3) is opened, the connection block (42) is pulled, driving the first slide bar (43) to slide forward on the support tube (41), the spring (44) is stretched, and then the ball valve (3) is closed, and then the spring (44) rebounds, driving the first slide bar (43) to move backward.

3. A pipe wall internal defect detection device according to claim 2, characterized in that: The invention also comprises a sealing mechanism (5), the sealing mechanism (5) comprising a sliding sleeve (51), a second sliding rod (52), an adjusting screw (53), a piston plate (54) and an air bag (55). The left and right parts of the connector (2) are both slidably connected to the second sliding rod (52). The sliding sleeve (51) is connected between the lower sides of the second sliding rod (52). The sliding sleeve (51) is located between the water pipe (1) and the connector (2). The front side of the sliding sleeve (51) is threadedly connected to the adjusting screw (53). The rear side of the adjusting screw (53) is rotatably connected to the piston plate (54). The piston plate (54) is slidably connected to the sliding sleeve (51). The air bag (55) is connected to the sliding sleeve (51). The adjusting screw (53) is rotated to make the piston plate (54) slide backward on the sliding sleeve (51) to push gas into the air bag (55), so that the air bag (55) expands.

4. The device for detecting internal defects of a pipe wall according to claim 1, characterized in that: The spherical valve (3) is provided with a handle.

5. The device for detecting internal defects of a pipe wall according to claim 2, characterized in that: The connection block (42) is provided with a gripping groove.

6. The device for detecting internal defects of a pipe wall according to claim 3, characterized in that: The adjusting screw (53) is provided with a knob.

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