Non-standard pipe fitting air tightness detection device

Abstract

The invention relates to the technical field of pipe fitting detection, and particularly discloses a non-standard pipe fitting air tightness detection device, which comprises two mounting plates, the two mounting plates are horizontally arranged up and down, a fixing box is mounted between the two mounting plates, an air hole is formed in the top of the top mounting plate in a penetrating manner, and the air hole is communicated with the air hole. An air pressure sensor is mounted at the bottom end of the inner wall of the fixing box on the bottom mounting plate, a detection mechanism is arranged in the fixing box, and sealing mechanisms are arranged at the two ends of the fixing box. By arranging a first driving wheel, a second driving wheel and a rotating roller, when the device performs airtightness detection on a pipe fitting through the fixing box, the first driving wheel and the second driving wheel abut against the pipe fitting, so that the mounting stability of the pipe fitting on the fixing box can be improved; and the situation that the connection part of the pipe fitting and the fixing box is loosened due to the weight of the pipe fitting in the detection process, and the detection accuracy of the device is affected is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of pipe fitting detection, and in particular to an air tightness detection device for non-standard pipe fittings. Background Art

[0002] Pipe fittings are a general term for components in pipeline systems that play a vital role in pipeline systems. They achieve the flexibility and functionality of pipeline systems through different forms and connection methods. Non-standard pipe fittings refer to pipe fittings that do not fully comply with national standards or industry standards. They have certain personalized needs and production requirements.

[0003] In order to ensure the air tightness and reliability of pipe fittings, air tightness testing is required after the pipe fittings are processed, usually the air tightness testing is performed on the joints of the pipe fittings. Currently, when air tightness testing is performed on pipe fittings, after one part of the testing is completed, the staff is required to manually change the testing position of the pipe fittings. In addition, during the testing process of the pipe fittings, since the pipe fittings themselves have a certain weight, the pipe fittings will be affected by their own weight during the testing process, and the connection between the pipe fittings and the air tightness testing device will be loose. This results in the device itself not being airtight during the testing process, resulting in inaccurate test results. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a non-standard pipe air tightness detection device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A non-standard pipe air tightness detection device comprises a mounting plate, wherein the number of the mounting plates is two, and the two mounting plates are horizontally arranged up and down, a fixing box is installed between the two mounting plates, an air hole is opened through the top of the top mounting plate, and the air hole extends into the interior of the top fixing box, an air pressure sensor is installed at the bottom end of the inner wall of the fixing box on the bottom mounting plate, a detection mechanism is provided inside the fixing box, sealing mechanisms are provided at both ends of the fixing box, and auxiliary mechanisms are provided at the positions of the two ends of the fixing box on the mounting plate.

[0006] Preferably, hydraulic rods are installed at the top four corners of the bottom mounting plate, the extension ends of the hydraulic rods face upward, and the extension ends of the hydraulic rods are connected to the bottom of the top mounting plate. The hydraulic rods can drive the upper mounting plate to rise and fall according to usage requirements.

[0007] Preferably, the detection mechanism includes a first movable block, a plurality of first movable blocks are evenly arranged on the bottom end of the inner wall of the fixed box, a second groove is opened on the side of the first movable block away from the bottom end of the inner wall of the fixed box, a sliding block is slidably installed inside the second groove, and a rotating roller is rotatably installed on the side of the sliding block away from the bottom end of the inner wall of the second groove.

[0008] Preferably, a second rotating motor is embedded and installed on one side of the first movable block close to the bottom end of the inner wall of the fixed box, and the mounting end of the second rotating motor is far away from the first movable block. A first electric lifting rod is provided on one side of the first movable block close to the bottom end of the inner wall of the fixed box, and the mounting end of the first electric lifting rod is connected to the bottom end of the inner wall of the fixed box, and the lifting end of the first electric lifting rod is connected to the mounting end of the second rotating motor.

[0009] Preferably, a pressure sensor is installed at the bottom end of the inner wall of the second slot, and a spring telescopic rod is installed on the side of the sliding block close to the pressure sensor, and one end of the spring telescopic rod facing the pressure sensor abuts against the pressure sensor.

[0010] Preferably, stabilizing grooves are provided on both inner walls of the second groove, and a stabilizing slider is installed on the side of the sliding block facing the stabilizing groove, and the stabilizing slider is slidably installed inside the stabilizing groove.

[0011] Preferably, the sealing mechanism comprises a first slot and an airbag, both ends of the fixing box are penetrated by the first slot, and the airbag is embedded and installed on the inner wall of the first slot.

[0012] Preferably, the auxiliary mechanism includes a second movable block and a third movable block, the mounting plate is provided with a second movable block at both ends of the fixed box, the first driving wheel is embedded and installed on the side of the second movable block away from the mounting plate, the mounting plate is provided with a third movable block on both sides of the second movable block, and the two third movable blocks are embedded and installed with the second driving wheel on the side close to each other.

[0013] Preferably, a first rotating motor is embedded and installed on a side of the second movable block close to the mounting plate, and a mounting end of the first rotating motor is away from the second movable block. A second electric lifting rod is provided on a side of the second movable block close to the mounting plate, and the mounting end of the second electric lifting rod is connected to the mounting plate, and the lifting end of the second electric lifting rod is connected to the mounting end of the first rotating motor.

[0014] Preferably, first sliding grooves are provided at the tops of both ends of the mounting plate at the positions on both sides of the second movable block, a first electric slider is slidably installed inside the first sliding groove, a movable plate is installed on the top of the first electric slider, a second sliding groove is provided on the side of the movable plate facing the second movable block, a rotating motor is embedded and installed on the side of the third movable block close to the movable plate, the mounting end of the rotating motor is away from the third movable block, the mounting end of the rotating motor is connected to the second electric slider, and the second electric slider is slidably installed inside the second sliding groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, by providing the first driving wheel, the second driving wheel and the rotating roller, when the device performs air tightness detection on the pipe fitting through the fixing box, the first driving wheel and the second driving wheel abut against the pipe fitting, thereby increasing the installation stability of the pipe fitting on the fixing box, and preventing the pipe fitting from loosening at the connection between the pipe fitting and the fixing box due to its own weight during the detection process, thereby affecting the detection accuracy of the device; After the detection of a section of the pipe fitting is completed, the length directions of the first driving wheel and the second driving wheel are both in a vertical use state with the length direction of the pipe fitting. The rotation of the first driving wheel and the second driving wheel can drive the pipe fitting to move, so that the pipe fitting can be automatically changed without manual operation by the staff, which reduces the labor intensity of the staff and increases the convenience of use of the device. The rotating roller abuts against the outside of the pipe fitting, and the length direction of the rotating roller is in a horizontal state with the length direction of the pipe fitting. The first driving wheel and the second driving wheel drive the pipe fitting to rotate. Under the abutment and extrusion of the rotating roller and the pipe fitting, the sliding block slides inside the second slot and squeezes the pressure sensor. The pressure sensor transmits the measured pressure value to the background control system. During the rotation of the pipe fitting, the pressure values ​​measured by multiple pressure sensors are compared through the background control system. If the difference in the pressure values ​​measured by the multiple pressure sensors exceeds the preset change interval value, it means that the outer circumference of the pipe fitting does not meet the standard. Through this operation mode, the automatic detection of the circumference of the pipe fitting can be completed, which increases the convenience of using the device. When the pipe is moving between the two fixed boxes, the rotating roller is rotated to a state where the length direction is perpendicular to the length direction of the pipe, and the rotating roller abuts against the outside of the pipe. During the movement of the pipe, the pressure value fed back by the pressure sensor is compared through the background control system. If multiple pressure values ​​exceed the preset pressure value variation range, it means that the outside of this section of the pipe is not straight. This operation method can complete the detection of the curvature of the outside of the pipe, increasing the diversity of the use functions of the device; The first movable block is driven by the first electric lifting rod to move toward the pipe until the rotating roller abuts against the outside of the pipe, and then the extrusion force between the rotating roller and the pipe is detected by the pressure sensor, and the first movable block completes the extrusion of the pipe under a preset pressure value, and then the changes on the outside of the pipe are observed. This operation method can complete the detection of the anti-extrusion force of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall side view structure of the present invention; Figure 3 It is a schematic diagram of the installation structure of the installation plate and the fixing box of the present invention; Figure 4 It is a schematic diagram of the installation structure of the first rotating electrical machine of the present invention; Figure 5 It is a schematic diagram of the installation structure of the first electric lifting rod and the first movable block of the present invention; Figure 6 It is a schematic diagram of the installation structure of the second rotating electrical machine of the present invention; Figure 7 It is a schematic diagram of the installation structure of the pressure sensor of the present invention; Figure 8 It is a schematic diagram of the connection structure between the sliding block and the pressure sensor of the present invention; Fig. 9 It is a schematic diagram of the installation structure of the movable plate and the third movable block of the present invention; Fig.10 It is a schematic diagram of the installation structure of the rotating motor of the present invention.

[0017] In the figure: 1. mounting plate; 2. air hole; 3. fixing box; 4. hydraulic rod; 5. moving plate; 6. air pressure sensor; 7. first electric lifting rod; 8. first movable block; 9. first slot; 10. air bag; 11. first slide; 12. first electric slider; 13. second electric lifting rod; 14. second movable block; 15. first driving wheel; 16. first rotating motor; 17. sliding block; 18. rotating roller; 19. second rotating motor; 20. second slot; 21. stabilizing slide; 22. stabilizing slider; 23. pressure sensor; 24. spring telescopic rod; 25. second slide; 26. second electric slider; 27. third movable block; 28. second driving wheel; 29. ​​rotating motor. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Reference Figure 1-10 A non-standard pipe fitting air tightness detection device includes a mounting plate 1, the number of mounting plates 1 is two, and the two mounting plates 1 are arranged horizontally up and down, a fixing box 3 is installed between the two mounting plates 1, an air hole 2 is opened through the top of the top mounting plate 1, and the air hole 2 extends into the interior of the top fixing box 3, and an air pressure sensor 6 is installed at the bottom end of the inner wall of the fixing box 3 on the bottom mounting plate 1, and a detection mechanism is provided inside the fixing box 3, and sealing mechanisms are provided at both ends of the fixing box 3. The mounting plate 1 is provided with auxiliary mechanisms at the positions of the two ends of the fixing box 3. By injecting preset pressure gas into the two fixing boxes 3 through the air hole 2, the air tightness detection of the pipe fitting can be completed in combination with the air pressure sensor 6, the detection mechanism can complete multiple functional detections of the pipe fitting, the auxiliary mechanism can increase the functional use stability of the device, and can also be used in conjunction with the device according to different use requirements to increase the functional use fluency of the device, and the sealing mechanism can increase the sealing of the space between the two fixing boxes 3, thereby ensuring the use effect of the device.

[0020] As a technical optimization solution of the present invention, hydraulic rods 4 are installed at the four corners of the top of the bottom mounting plate 1, and the extended ends of the hydraulic rods 4 face upward and are connected to the bottom of the top mounting plate 1.

[0021] As a technical optimization solution of the present invention, the detection mechanism includes a first movable block 8, a plurality of first movable blocks 8 are evenly arranged at the bottom end of the inner wall of the fixed box 3, a second slot 20 is provided on the side of the first movable block 8 away from the bottom end of the inner wall of the fixed box 3, a sliding block 17 is slidably installed inside the second slot 20, and a rotating roller 18 is rotatably installed on the side of the sliding block 17 away from the bottom end of the inner wall of the second slot 20. The rotating roller 18 can abut against the outer wall of the pipe fitting, and the sliding block 17 can slide inside the second slot 20, so as to complete the functional detection of the pipe fitting.

[0022] As a technical optimization solution of the present invention, a second rotary motor 19 is embedded and installed on one side of the first movable block 8 close to the bottom end of the inner wall of the fixed box 3, and the installation end of the second rotary motor 19 is far away from the first movable block 8. A first electric lifting rod 7 is provided on one side of the first movable block 8 close to the bottom end of the inner wall of the fixed box 3, and the installation end of the first electric lifting rod 7 is connected to the bottom end of the inner wall of the fixed box 3, and the lifting end of the first electric lifting rod 7 is connected to the installation end of the second rotary motor 19. The second rotary motor 19 can drive the first movable block 8 to rotate according to different usage requirements, and the first electric lifting rod 7 can drive the first movable block 8 to lift and lower according to different usage requirements.

[0023] As a technical optimization solution of the present invention, a pressure sensor 23 is installed at the bottom end of the inner wall of the second slot 20, and a spring telescopic rod 24 is installed on the side of the sliding block 17 close to the pressure sensor 23, and one end of the spring telescopic rod 24 facing the pressure sensor 23 abuts against the pressure sensor 23. By abutting the pressure sensor 23 with the spring telescopic rod 24, when the rotating roller 18 abuts against the pipe fitting, the sliding block 17 can slide, and when the sliding block 17 slides, the pressure sensor 23 can be squeezed by the spring telescopic rod 24. In this way, the device can complete multiple functional tests on the pipe fitting according to the change of the pressure value fed back by the pressure sensor 23.

[0024] As a technical optimization solution of the present invention, a stabilizing groove 21 is provided on both inner walls of the second slot 20, and a stabilizing slider 22 is installed on the side of the sliding block 17 facing the stabilizing groove 21, and the stabilizing slider 22 is slidably installed inside the stabilizing groove 21. By sliding the stabilizing slider 22 in the stabilizing groove 21, the sliding stability of the sliding block 17 in the second slot 20 can be increased.

[0025] As a technical optimization solution of the present invention, the sealing mechanism includes a first slot 9 and an airbag 10. The first slot 9 is penetrated at both ends of the fixing box 3, and the airbag 10 is embedded and installed on the inner wall of the first slot 9. When the airbag 10 is activated, the airbag 10 abuts against the outer wall of the pipe fitting, and seals the connection between the pipe fitting and the first slot 9, so that the space between the two fixing boxes 3 forms a closed space, so that the device can conveniently perform air tightness detection on the pipe fitting. The setting of the airbag 10 enables the device to measure pipe fittings of various specifications, which increases the convenience of using the device.

[0026] As a technical optimization solution of the present invention, the auxiliary mechanism includes a second movable block 14 and a third movable block 27. The mounting plate 1 is provided with a second movable block 14 at both ends of the fixing box 3. The second movable block 14 is embedded with a first driving wheel 15 on the side away from the mounting plate 1. The mounting plate 1 is provided with a third movable block 27 on both sides of the second movable block 14. The two third movable blocks 27 are embedded with a second driving wheel 28 on the side close to each other. The first driving wheel 15 and the second driving wheel 28 abut against the pipe fitting, which can drive the pipe fitting to rotate and move, and the first driving wheel 15 and the second driving wheel 28 abut against the pipe fitting, which can complete the fixing of the pipe fitting, and increase the stability of the pipe fitting when the device detects the pipe fitting.

[0027] As a technical optimization solution of the present invention, a first rotating motor 16 is embedded and installed on the side of the second movable block 14 close to the mounting plate 1, and the mounting end of the first rotating motor 16 is far away from the second movable block 14. A second electric lifting rod 13 is provided on the side of the second movable block 14 close to the mounting plate 1, and the mounting end of the second electric lifting rod 13 is connected to the mounting plate 1, and the lifting end of the second electric lifting rod 13 is connected to the mounting end of the first rotating motor 16. The first rotating motor 16 can drive the second movable block 14 to rotate, and the second electric lifting rod 13 can drive the second movable block 14 to lift and lower.

[0028] As a technical optimization solution of the present invention, first slide grooves 11 are provided at the top of both ends of the bottom mounting plate 1 at the positions on both sides of the second movable block 14, a first electric slider 12 is slidably installed inside the first slide groove 11, a moving plate 5 is installed on the top of the first electric slider 12, a second slide groove 25 is provided on the side of the moving plate 5 facing the second movable block 14, a rotating motor 29 is embedded and installed on the side of the third movable block 27 close to the moving plate 5, the mounting end of the rotating motor 29 is away from the third movable block 27, a second electric slider 26 is connected to the mounting end of the rotating motor 29, and the second electric slider 26 is slidably installed inside the second slide groove 25. The sliding of the first electric slider 12 in the first slide groove 11 can drive the moving plate 5 to move, and combined with the sliding of the second electric slider 26 in the second slide groove 25, the third movable block 27 can be driven to move according to different usage requirements.

[0029] When the present invention is in use, the electrical equipment used in the device is powered by an external power supply through a wire. The device controls the electrical equipment in the device by setting a control system. The air pressure sensor 6 and the pressure sensor 23 used in the device are both existing mature technologies, so they will not be elaborated on in detail. The top of the air hole 2 is connected to the booster air pump through a conduit, and the connection between the conduit and the air hole 2 is controlled by an electromagnetic valve. The two fixing boxes 3 are both provided with sealing strips at the abutment on one side close to each other. The airbag 10 is connected to the air pump, and the air pump is an existing mature technology, so it will not be elaborated on in detail.

[0030] When the air tightness test of the pipe is required, the device moves to the position as shown in the figure. Figure 2In the usage state shown, the staff then passes the pipe to be measured through the first slot 9 between the two fixed boxes 3, and the other end of the pipe passes through the first slot 9 at the other end between the two fixed boxes 3. At this time, the section of the pipe to be measured is located between the two fixed boxes 3. Then, the hydraulic rod 4 drives the upper mounting plate 1 to move downward, so that the two fixed boxes 3 abut against each other, and the airbag 10 is activated. The airbag 10 abuts against the outer wall of the pipe, and the connection between the pipe and the first slot 9 is sealed, so that the space between the two fixed boxes 3 forms a closed space. Then, the second electric lifting rod 13 drives the second movable block 14 to extend, and the movable plate 5 drives the third movable block 27 to move, so that the second movable block 14 and the third movable block 27 move toward the pipe until the first driving wheel 15 and The second driving wheels 28 are all in contact with the outside of the pipe fittings. The first driving wheel 15 and the second driving wheel 28 are in contact with the pipe fittings to fix the pipe fittings, thereby increasing the functional stability of the device. At this time, the space between the two fixing boxes 3 is pressurized by the booster air pump connected to the air hole 2. When the pressure is increased to a preset pressure value, the solenoid valve at the air hole 2 is closed, so that there is a constant preset air pressure value between the two fixing boxes 3. Subsequently, the air pressure between the two fixing boxes 3 is measured by the air pressure sensor 6, and the air pressure changes between the two fixing boxes 3 are compared within a preset time period. If the air pressure value changes beyond the preset air pressure value change range, it means that the air tightness of the measuring section of the pipe fitting does not meet the standard, otherwise it meets the standard. The air tightness detection of the pipe fitting can be completed by this measurement method.

[0031] After the detection of a section of the pipe is completed, the length directions of the first drive wheel 15 and the second drive wheel 28 are both in a vertical use state with respect to the length direction of the pipe, and then the airbag 10 is deflated until the airbag 10 no longer abuts against the outside of the pipe, and the first drive wheel 15 and the second drive wheel 28 rotate to drive the pipe to move, so that the pipe can be automatically changed without manual operation by the staff, thereby reducing the labor intensity of the staff and increasing the convenience of use of the device, and then the air tightness detection of another section of the pipe can be completed according to the above-mentioned operating steps.

[0032] In the process of changing sections for air tightness detection of pipe fittings, the first movable block 8 is driven to rise and fall by the first electric lifting rod 7, so that the first movable block 8 moves toward the pipe fitting until the rotating roller 18 abuts against the outside of the pipe fitting, and the first movable block 8 rotates so that the length direction of the rotating roller 18 is horizontal with the length direction of the pipe fitting, and the first driving wheel 15 and the second driving wheel 28 rotate until the length direction of the first driving wheel 15 and the second driving wheel 28 is horizontal with the length direction of the pipe fitting. At this time, the first driving wheel 15 and the second driving wheel 28 rotate to drive the pipe fitting to rotate. In the process of the pipe fitting rotating, the pipe fitting The outer wall of the pipe is in contact with the rotating roller 18. Under the contact and extrusion between the rotating roller 18 and the pipe, the sliding block 17 slides inside the second slot 20 and squeezes the spring telescopic rod 24. The spring telescopic rod 24 squeezes the pressure sensor 23. The pressure sensor 23 transmits the measured pressure value to the background control system. During the rotation of the pipe, the pressure values ​​measured by multiple pressure sensors 23 are compared through the background control system. If the difference in the pressure values ​​measured by the multiple pressure sensors 23 exceeds the preset change interval value, it means that the outer pi of the pipe does not meet the standard. Through this operation mode, the automatic detection of the pi of the pipe can be completed, which increases the convenience of using the device.

[0033] When the pipe is moved between the two fixed boxes 3, the rotating roller 18 is rotated to a state where the length direction is perpendicular to the length direction of the pipe, and the rotating roller 18 abuts against the outside of the pipe. During the movement of the pipe, the pressure value fed back by the pressure sensor 23 is compared through the background control system. If multiple pressure values ​​exceed the preset pressure value variation range, it means that the outside of this section of the pipe is not straight. This operation method can complete the detection of the straightness of the outside of the pipe, which increases the diversity of the device's usage functions.

[0034] The first movable block 8 is driven by the first electric lifting rod 7 to move toward the pipe until the rotating roller 18 abuts against the outside of the pipe. The extrusion force between the rotating roller 18 and the pipe is then detected by the pressure sensor 23, and the first movable block 8 completes the extrusion of the pipe at a preset pressure value. The changes on the outside of the pipe are then observed. This operation method can complete the detection of the anti-extrusion force of the pipe.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A non-standard pipe air tightness detection device, comprising a mounting plate (1), characterized in that: The number of the mounting plates (1) is two, and the two mounting plates (1) are arranged horizontally up and down, a fixing box (3) is installed between the two mounting plates (1), an air hole (2) is opened through the top of the top mounting plate (1), and the air hole (2) extends through and into the interior of the top fixing box (3), an air pressure sensor (6) is installed at the bottom end of the inner wall of the fixing box (3) on the bottom mounting plate (1), a detection mechanism is provided inside the fixing box (3), sealing mechanisms are provided at both ends of the fixing box (3), and auxiliary mechanisms are provided at the positions of the two ends of the fixing box (3) on the mounting plate (1).

2. The non-standard pipe air tightness detection device according to claim 1, characterized in that: Hydraulic rods (4) are installed at the four corners of the top of the bottom mounting plate (1), the extended ends of the hydraulic rods (4) face upward, and the extended ends of the hydraulic rods (4) are connected to the bottom of the top mounting plate (1).

3. The non-standard pipe air tightness detection device according to claim 1, characterized in that: The detection mechanism comprises a first movable block (8), a plurality of first movable blocks (8) are evenly arranged at the bottom end of the inner wall of the fixed box (3), a second slot (20) is provided on a side of the first movable block (8) away from the bottom end of the inner wall of the fixed box (3), a sliding block (17) is slidably mounted inside the second slot (20), and a rotating roller (18) is rotatably mounted on a side of the sliding block (17) away from the bottom end of the inner wall of the second slot (20).

4. The non-standard pipe air tightness detection device according to claim 3, characterized in that: A second rotating motor (19) is embedded and mounted on a side of the first movable block (8) close to the bottom end of the inner wall of the fixed box (3); a mounting end of the second rotating motor (19) is away from the first movable block (8); a first electric lifting rod (7) is provided on a side of the first movable block (8) close to the bottom end of the inner wall of the fixed box (3); the mounting end of the first electric lifting rod (7) is connected to the bottom end of the inner wall of the fixed box (3), and the lifting end of the first electric lifting rod (7) is connected to the mounting end of the second rotating motor (19).

5. The non-standard pipe air tightness detection device according to claim 3, characterized in that: A pressure sensor (23) is installed at the bottom end of the inner wall of the second slot (20), and a spring telescopic rod (24) is installed on the side of the sliding block (17) close to the pressure sensor (23), and one end of the spring telescopic rod (24) facing the pressure sensor (23) abuts against the pressure sensor (23).

6. The non-standard pipe air tightness detection device according to claim 3, characterized in that: Both inner walls of the second slot (20) are provided with stabilizing slots (21), and a stabilizing slide block (22) is installed on the side of the sliding block (17) facing the stabilizing slot (21), and the stabilizing slide block (22) is slidably installed inside the stabilizing slot (21).

7. The non-standard pipe air tightness detection device according to claim 1, characterized in that: The sealing mechanism comprises a first slot (9) and an airbag (10). The first slot (9) is penetrated through both ends of the fixing box (3), and the airbag (10) is embedded and installed on the inner wall of the first slot (9).

8. The non-standard pipe air tightness detection device according to claim 1, characterized in that: The auxiliary mechanism comprises a second movable block (14) and a third movable block (27); the mounting plate (1) is provided with second movable blocks (14) at both ends of the fixing box (3); a first driving wheel (15) is embedded and mounted on a side of the second movable block (14) away from the mounting plate (1); third movable blocks (27) are provided on both sides of the mounting plate (1) on the second movable block (14); and second driving wheels (28) are embedded and mounted on the sides of the two third movable blocks (27) close to each other.

9. The non-standard pipe air tightness detection device according to claim 8, characterized in that: A first rotating motor (16) is embedded and mounted on a side of the second movable block (14) close to the mounting plate (1); a mounting end of the first rotating motor (16) is away from the second movable block (14); a second electric lifting rod (13) is provided on a side of the second movable block (14) close to the mounting plate (1); the mounting end of the second electric lifting rod (13) is connected to the mounting plate (1), and the lifting end of the second electric lifting rod (13) is connected to the mounting end of the first rotating motor (16).

10. The non-standard pipe air tightness detection device according to claim 8, characterized in that: The top of both ends of the mounting plate (1) at the bottom are provided with first slide grooves (11) at positions on both sides of the second movable block (14); a first electric slider (12) is slidably installed inside the first slide groove (11); a moving plate (5) is installed on the top of the first electric slider (12); a second slide groove (25) is provided on the side of the moving plate (5) facing the second movable block (14); a rotating motor (29) is embedded and installed on the side of the third movable block (27) close to the moving plate (5); the mounting end of the rotating motor (29) is away from the third movable block (27); the mounting end of the rotating motor (29) is connected to the second electric slider (26); and the second electric slider (26) is slidably installed inside the second slide groove (25).

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