A pipe sealing detection device

Abstract

The utility model discloses a pipe fitting leakproofness detection device relates to pipe fitting detection technical field, including detection box and rest board, detection box: the inside left and right two sides all are equipped with the limit slot, the left and right sides of rest board all are fixed with the limit block, the middle part of rest board top is fixed with arc seat, the sliding groove of rest board top both sides all slide and install with clamping plate, the bottom of detection box is connected and is installed with infusion pipe, the right side of detection box is equipped with detection unit, and the top of detection box is equipped with adjusting unit, this pipe fitting leakproofness detection device, through gas pipe and solenoid valve realizes the independent control of multichannel, can synchronous detection multiple pipe fittings, is equipped with two -way screw rod adaptive clamping mechanism and elastic buffer device, can stabilize and fix the test piece of different pipe diameter and reduce vibration interference, combines air pressure sensor and detection camera and realizes " pressure - image " two -dimensional detection.

Description

Technical Field

[0001] This utility model relates to the field of pipe fitting testing technology, specifically a pipe fitting sealing testing device. Background Technology

[0002] Pipe fittings are a collective term for components in a pipeline system that serve functions such as connection, control, direction change, flow diversion, sealing, and support. Pipe fitting sealing performance testing is a critical step in industrial manufacturing, especially in the fields of petroleum, chemical, and gas, where the sealing performance of pipelines directly affects system safety. Traditional testing methods often rely on manual visual inspection or hydrostatic testing, which suffer from low efficiency, high subjectivity, and difficulty in quantifying defects. Existing automated testing equipment is often structurally complex, unable to adapt to the rapid clamping of pipes of different diameters, and lacks real-time data acquisition and anomaly alarm functions. Furthermore, traditional devices are prone to pipe deformation due to uneven clamping force during testing, affecting testing accuracy. Therefore, we propose a pipe fitting sealing test device. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a pipe fitting sealing test device. It realizes independent control of multiple pipes through the air distribution pipe and solenoid valve, and can simultaneously test multiple pipe fittings. It is equipped with a bidirectional lead screw adaptive clamping mechanism and an elastic buffer device, which can stably fix test pieces of different pipe diameters and reduce vibration interference. It combines a pressure sensor and a test camera to realize "pressure-image" dual-dimensional detection, which greatly improves the detection accuracy and can effectively solve the problems in the background technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pipe fitting sealing performance testing device, comprising a testing box and a placement plate; Testing box: Limiting grooves are provided on both the left and right sides inside; limiting blocks are fixed on both the left and right sides of the placement plate; an arc-shaped seat is fixed in the middle of the top surface of the placement plate; clamping plates are slidably installed in the sliding grooves on both sides of the top surface of the placement plate; an infusion tube is connected to the bottom of the testing box; a testing unit is provided on the right side of the testing box; and an adjustment unit is provided on the top surface of the testing box. Detection unit: includes a hose, a solenoid valve, and a gas distribution pipe. The gas distribution pipe is fixed on the right side of the detection box. Solenoid valves are installed on the gas outlet pipes on the top surface of the gas distribution pipe. The gas outlet of the solenoid valve is connected to one end of the hose, and the other end of the hose is connected to the air inlet on the surface of the right clamping plate. It also includes a controller, which is located on the front side of the detection box. The input end of the solenoid valve is electrically connected to the output end of the controller, and the input end of the controller is electrically connected to the output end of an external power supply.

[0005] The limiting block slides inside the limiting groove, immersing the pipe fitting on the arc-shaped seat into the testing liquid inside the testing chamber. The external air pump is then activated to deliver testing gas to the pipe fitting fixed between the two clamping plates, thus allowing the sealing performance of the pipe fitting to be tested.

[0006] Furthermore, the detection unit also includes a detection camera, a camera mount, a mounting frame, and a pressure sensor. The mounting frame is fixed to the rear side of the top surface of the detection box. Camera mounts corresponding to the positions of the mounting plates are evenly arranged on the top surface of the mounting frame. The detection camera is placed inside the camera mount. The pressure sensor is installed on the surface of the clamping plate on the left side. The input end of the detection camera is electrically connected to the output end of the controller, and the output end of the pressure sensor is electrically connected to the input end of the controller. The pressure sensor can detect the air pressure inside the pipe in real time, while the detection camera inside the camera mount can detect bubbles or liquid leakage on the surface of the pipe, realizing "pressure-image" dual-dimensional verification and reducing the false judgment rate.

[0007] Furthermore, the adjustment unit includes an electric push rod, a top plate, a pressure plate, a spring, and a placement seat. The top plate is fixed to the left and right sides of the top surface of the detection box. The electric push rod is fixed to the top surface of the top plate, and its bottom end is connected to one side of the top surface of the pressure plate. The placement seat is fixed to the bottom of the left and right sides inside the detection box. A spring is fixed inside the placement seat, and the top end of the spring is connected to the bottom surface of the placement plate. The input end of the electric push rod is electrically connected to the output end of the controller. Activating the electric push rod drives the pressure plate to press the placement plate into the detection liquid inside the detection box, which can improve the accuracy of the detection. After the detection is completed, the spring extends and pushes the placement plate out of the detection box to complete the detection.

[0008] Furthermore, the adjustment unit also includes a bidirectional lead screw, a motor, and a rubber pad. The motor is fixed on the left side of the bottom surface of the placement plate, and the output shaft of the motor is connected to the left end of the bidirectional lead screw. The threads at both ends of the bidirectional lead screw are opposite. The two outer ends of the bidirectional lead screw are respectively threaded to the screw holes on the surfaces of the two corresponding clamping plates. The rubber pad is fixed on the inner side of the clamping plate. The input end of the motor is electrically connected to the output end of the controller. The motor drives the bidirectional lead screw to rotate, causing the two clamping plates to press and fix the two sides of the pipe fitting. The rubber pad can increase the sealing performance during clamping and protect the pipe wall. It is also suitable for sealing tests of pipe fittings of different specifications.

[0009] Furthermore, it also includes an intelligent liquid valve and a liquid level sensor. The intelligent liquid valve is installed on the outside of the infusion tube, and the liquid level sensor is installed on the rear side inside the detection box. The input end of the intelligent liquid valve is electrically connected to the output end of the controller, and the output end of the liquid level sensor is electrically connected to the input end of the controller. The liquid level sensor can detect the liquid level inside the detection box, and when the liquid level is low, the intelligent liquid valve is activated to replenish the liquid.

[0010] Furthermore, it also includes an audible and visual alarm, which is evenly fixed on the left side of the detection box. The input end of the audible and visual alarm is electrically connected to the output end of the controller. The audible and visual alarm is set to trigger immediately when a sudden drop in pressure or abnormal liquid level is detected, so as to avoid equipment damage or safety accidents caused by leakage, and at the same time remind personnel to check and adjust.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This pipe fitting sealing test device has the following advantages: 1. By activating an external air pump, the detection gas is delivered into the pipe fixed between two clamping plates. The installed air pressure sensor can detect the air pressure inside the pipe in real time. At the same time, the detection camera inside the camera mount can detect bubbles or liquid leakage on the surface of the pipe, realizing "pressure-image" dual-dimensional verification and reducing the false judgment rate. 2. By activating the electric push rod, the pressure plate is pressed into the test liquid inside the test chamber, which can improve the accuracy of the test. The motor drives the bidirectional screw to rotate, so that the two clamping plates press and fix the two sides of the pipe fitting. The rubber gasket can not only increase the sealing during clamping, but also protect the pipe wall. It is suitable for sealing tests of pipe fittings of different specifications. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the detection unit structure of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the placement plate of this utility model.

[0013] In the diagram: 1. Detection box, 2. Detection unit, 21. Hoses, 22. Solenoid valve, 23. Gas distribution pipe, 24. Detection camera, 25. Camera mount, 26. Placement rack, 27. Air pressure sensor, 3. Adjustment unit, 31. Electric push rod, 32. Top plate, 33. Pressure plate, 34. Spring, 35. Placement seat, 36. Bidirectional lead screw, 37. Motor, 38. Rubber pad, 4. Limit groove, 5. Placement plate, 6. Limit block, 7. Arc-shaped seat, 8. Clamping plate, 9. Infusion tube, 10. Intelligent liquid valve, 11. Liquid level sensor, 12. Audible and visual alarm, 13. Controller. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-3 This embodiment provides a technical solution: a pipe fitting sealing test device, including a test box 1 and a placement plate 5; Test box 1: Limiting grooves 4 are provided on both the left and right sides inside. Limiting blocks 6 are fixed on both the left and right sides of the placement plate 5. An arc-shaped seat 7 is fixed in the middle of the top surface of the placement plate 5. Clamping plates 8 are slidably installed in the sliding grooves on both sides of the top surface of the placement plate 5. An infusion tube 9 is connected to the bottom of the test box 1. A test unit 2 is provided on the right side of the test box 1. An adjustment unit 3 is provided on the top surface of the test box 1. The adjustment unit 3 includes an electric push rod 31, a top plate 32, a pressure plate 33, a spring 34, and a placement seat 35. The top plate 32 is fixed on the left and right sides of the top surface of the test box 1. The electric push rod 31 is fixed on the top surface of the top plate 32. The bottom end of the electric push rod 31 is connected to one side of the top surface of the pressure plate 33. The placement seat 35 is fixed to the bottom of the left and right sides inside the test box 1. A spring 34 is fixed inside the placement seat 35. The top end of the spring 34 is connected to the bottom surface of the placement plate 5. The input end of the electric push rod 31 is electrically connected to the output end of the controller 13. The electric push rod 31 is activated. The pressure plate 33 presses the placement plate 5 into the test liquid inside the test chamber 1, which can improve the accuracy of the test. After the test is completed, the spring 34 extends and pushes the placement plate 5 out of the test chamber 1 to complete the test. The adjustment unit 3 also includes a bidirectional lead screw 36, a motor 37 and a rubber pad 38. The motor 37 is fixed on the left side of the bottom surface of the placement plate 5. The output shaft of the motor 37 is connected to the left end of the bidirectional lead screw 36. The threads at both ends of the bidirectional lead screw 36 are opposite. The two outer ends of the bidirectional lead screw 36 are respectively threaded to the screw holes on the surface of the two corresponding clamping plates 8. The rubber pad 38 is fixed on the inner side of the clamping plate 8. The input end of the motor 37 is electrically connected to the output end of the controller 13. The motor 37 drives the bidirectional lead screw 36 to rotate so that the two clamping plates 8 press and fix the two sides of the pipe fitting. The rubber pad 38 can increase the sealing during clamping and protect the pipe wall. It is suitable for sealing tests of pipe fittings of different specifications. Detection unit 2 includes a hose 21, a solenoid valve 22, and a gas distribution pipe 23. The gas distribution pipe 23 is fixed to the right side of the detection box 1. Solenoid valves 22 are installed on the air outlets of the top surface of the gas distribution pipe 23. The outlet of the solenoid valve 22 is connected to one end of the hose 21, and the other end of the hose 21 is connected to the air inlet on the surface of the right-side clamping plate 8. Detection unit 2 also includes a detection camera 24, a camera mount 25, a mounting bracket 26, and a pressure sensor 27. The mounting bracket 26 is fixed to the rear side of the top surface of the detection box 1. The top surface of the mounting bracket 26 is evenly distributed with positions corresponding to the mounting plate 5. The corresponding camera mount 25 houses a detection camera 24, and a pressure sensor 27 is mounted on the surface of the clamping plate 8 on the left. The input of the detection camera 24 is electrically connected to the output of the controller 13, and the output of the pressure sensor 27 is electrically connected to the input of the controller 13. The pressure sensor 27 can detect the air pressure inside the pipe in real time, while the detection camera 24 inside the camera mount 25 can detect bubbles or liquid leakage on the surface of the pipe, realizing "pressure-image" dual-dimensional verification and reducing the false judgment rate. The system also includes a controller 13, located on the front side of the detection box 1. The input of the solenoid valve 22 is electrically connected to the output of the controller 13, which in turn is electrically connected to the output of an external power supply. The limiting block 6 slides within the limiting groove 4, immersing the pipe fitting on the arc-shaped seat 7 into the detection liquid inside the detection box 1. An external air pump is activated to deliver detection gas to the pipe fitting fixed between the two clamping plates 8, thus enabling the testing of the pipe fitting's sealing performance. The system also includes a smart liquid valve 10 and a liquid level sensor 11. The smart liquid valve 10 is installed on the outside of the infusion pipe 9, and the liquid level sensor 11 is installed on the rear side inside the detection box 1. The intelligent liquid valve 10 is electrically connected to the output of the controller 13 at its input end, and the liquid level sensor 11 is electrically connected to the input of the controller 13 at its output end. The liquid level sensor 11 can detect the liquid level inside the detection box 1. When the liquid level is low, the intelligent liquid valve 10 is activated to replenish the liquid. The detection box 11 also includes an audible and visual alarm 12, which is evenly fixed on the left side of the detection box 1. The input of the audible and visual alarm 12 is electrically connected to the output of the controller 13. The audible and visual alarm 12 is set to trigger immediately when a sudden drop in pressure or abnormal liquid level is detected, so as to avoid equipment damage or safety accidents caused by leakage, and at the same time remind personnel to check and adjust.

[0016] The working principle of the pipe fitting sealing test device provided by this utility model is as follows: First, the pipe fitting to be tested is placed inside the arc-shaped seat 7. The motor 37 drives the bidirectional lead screw 36 to rotate, so that the two clamping plates 8 press and fix the two sides of the pipe fitting. The rubber gasket 38 can not only increase the sealing during clamping, but also protect the pipe wall. It is suitable for sealing test of pipe fittings of different specifications. The electric push rod 31 is started to drive the pressure plate 33 to press the placement plate 5 into the test liquid inside the test chamber 1, which can improve the accuracy of the test. The external air pump is started to pump the test liquid into the test chamber 1. Gas is delivered into the pipe fixed between two clamping plates 8. The pressure sensor 27 can detect the pressure inside the pipe in real time. At the same time, the detection camera 24 inside the camera mount 25 can detect bubbles or liquid leakage on the surface of the pipe, realizing "pressure-image" dual-dimensional verification and reducing the false judgment rate. After the test is completed, the spring 34 extends and pushes the placement plate 5 out of the test box 1 to complete the test. The audible and visual alarm 12 is triggered immediately when a sudden drop in pressure or abnormal liquid level is detected to avoid equipment damage or safety accidents caused by leakage, and at the same time remind personnel to check and adjust.

[0017] It is worth noting that the controller 13 disclosed in the above embodiments is equipped with buttons corresponding to the solenoid valve 22, the detection camera 24, the pressure sensor 27, the electric actuator 31, the motor 37, the intelligent liquid valve 10, the liquid level sensor 11, and the audible and visual alarm 12. The controller 13 controls the operation of the solenoid valve 22, the detection camera 24, the pressure sensor 27, the electric actuator 31, the motor 37, the intelligent liquid valve 10, the liquid level sensor 11, and the audible and visual alarm 12 using methods commonly used in the prior art.

[0018] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pipe fitting sealing performance testing device, characterized in that: Includes a testing box (1) and a placement plate (5); The detection box (1) has a limiting groove (4) on both the left and right sides inside. The placement plate (5) has a limiting block (6) fixed on both the left and right sides. An arc-shaped seat (7) is fixed in the middle of the top surface of the placement plate (5). A clamping plate (8) is slidably installed in the sliding grooves on both sides of the top surface of the placement plate (5). An infusion tube (9) is connected to the bottom of the detection box (1). A detection unit (2) is provided on the right side of the detection box (1). An adjustment unit (3) is provided on the top surface of the detection box (1). Detection unit (2): includes a hose (21), a solenoid valve (22) and a gas distribution pipe (23). The gas distribution pipe (23) is fixed on the right side of the detection box (1). The gas outlet pipes on the top surface of the gas distribution pipe (23) are equipped with solenoid valves (22). The gas outlet of the solenoid valve (22) is connected to one end of the hose (21), and the other end of the hose (21) is connected to the air inlet on the surface of the right clamping plate (8). The system also includes a controller (13), which is located on the front side of the detection box (1). The input end of the solenoid valve (22) is electrically connected to the output end of the controller (13), and the input end of the controller (13) is electrically connected to the output end of an external power supply.

2. The pipe fitting sealing performance testing device according to claim 1, characterized in that: The detection unit (2) also includes a detection camera (24), a camera mount (25), a placement frame (26), and a pressure sensor (27). The placement frame (26) is fixed to the rear side of the top surface of the detection box (1). The top surface of the placement frame (26) is evenly provided with camera mounts (25) corresponding to the positions of the placement plate (5). The detection camera (24) is placed inside the camera mount (25). The pressure sensor (27) is installed on the surface of the clamping plate (8) on the left side. The input end of the detection camera (24) is electrically connected to the output end of the controller (13), and the output end of the pressure sensor (27) is electrically connected to the input end of the controller (13).

3. The pipe fitting sealing performance testing device according to claim 1, characterized in that: The adjustment unit (3) includes an electric push rod (31), a top plate (32), a pressure plate (33), a spring (34), and a placement seat (35). The top plate (32) is fixed on the left and right sides of the top surface of the test box (1). The electric push rod (31) is fixed on the top surface of the top plate (32). The bottom end of the electric push rod (31) is connected to one side of the top surface of the pressure plate (33). The placement seat (35) is fixed on the bottom of the left and right sides inside the test box (1). The spring (34) is fixed inside the placement seat (35). The top end of the spring (34) is connected to the bottom surface of the placement plate (5). The input end of the electric push rod (31) is electrically connected to the output end of the controller (13).

4. The pipe fitting sealing performance testing device according to claim 1, characterized in that: The adjustment unit (3) also includes a bidirectional lead screw (36), a motor (37) and a rubber pad (38). The motor (37) is fixed on the left side of the bottom surface of the placement plate (5). The output shaft of the motor (37) is connected to the left end of the bidirectional lead screw (36). The threads at both ends of the bidirectional lead screw (36) are opposite. The two outer ends of the bidirectional lead screw (36) are respectively threaded to the screw holes on the surfaces of the two corresponding clamping plates (8). The rubber pad (38) is fixed on the inner side of the clamping plate (8). The input end of the motor (37) is electrically connected to the output end of the controller (13).

5. The pipe fitting sealing performance testing device according to claim 1, characterized in that: It also includes a smart liquid valve (10) and a liquid level sensor (11). The smart liquid valve (10) is installed on the outside of the infusion tube (9), and the liquid level sensor (11) is installed on the rear side inside the detection box (1). The input end of the smart liquid valve (10) is electrically connected to the output end of the controller (13), and the output end of the liquid level sensor (11) is electrically connected to the input end of the controller (13).

6. The pipe fitting sealing performance testing device according to claim 1, characterized in that: It also includes an audible and visual alarm (12), which is evenly fixed on the left side of the detection box (1), and the input end of the audible and visual alarm (12) is electrically connected to the output end of the controller (13).

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