A water conservancy pipeline quality detection device

Abstract

The present invention discloses a water conservancy pipeline quality detection device, which relates to the technical field of water conservancy engineering, and comprises a frame, air bags are connected to both ends of the frame, and the frame is also connected to an air pump that can inflate the air bags. When the air bags are filled with gas, the air bags, the frame and the pipeline cooperate with each other to enclose and form a detection space; the frame is connected to an air inlet pipe, the air pump and the air inlet pipe are connected, an air hole is opened in the air inlet pipe, and a sealing plug that can block the air pipe is slidably connected in the air inlet pipe. The device is easy to operate, can detect the air tightness of any position in the pipeline, is not limited by the diameter of the pipeline, has an intuitive detection effect, can realize rapid detection of pipeline quality, and has high detection accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy engineering, and in particular to a water conservancy pipeline quality detection device. Background Art

[0002] Water conservancy projects refer to various projects for the use of surface water and groundwater, including flood control, farmland water conservancy, hydroelectric power generation projects, shipping, water supply and drainage, etc. Water conservancy pipelines are often used in water conservancy projects. When testing the quality of water conservancy pipelines, the sealing of water conservancy pipelines is an important test data before the pipeline is used. The existing testing methods usually test the sealing by observing the changes in air pressure or water pressure. This method has a slow detection efficiency and the results are not intuitive enough.

[0003] For example, the patent with publication number CN 218916698U discloses a water conservancy project water pipeline sealing tester, including: a mounting platform, a detection water tank is arranged inside the mounting platform, the inner end of the driven gear is connected to a limited slider, and the upper end of the driving gear is connected to a lifting threaded rod; a mounting crossbar, the mounting crossbar is connected to the inner end of the threaded connection block, the front end of the connecting worm is connected to a connecting worm wheel, the outer side of the clamping transmission rod is installed with a mounting slider and is located on the lower side of the mounting crossbar, and the inner end of the clamping block is provided with a sealing gasket; a matching block, the matching block is connected to the upper end of the clamping block and is located inside the mounting slider, and the inner end of the fixed block is connected to a connecting slider. However, the device still has the following problems: although it can be applied to the detection of air tightness of different pipelines, its sealing effect is poor, and it is impossible to form a sufficiently closed space in the pipeline, and its detection results are not intuitive, and it is impossible to obtain the air tightness results well, which affects its detection efficiency and detection accuracy. Summary of the invention

[0004] In order to solve the above problems existing in the prior art, a water conservancy pipeline quality detection device is provided.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] The present invention proposes a water conservancy pipeline quality detection device, including a frame, wherein both ends of the frame are connected to air bags, and the frame is also connected to an air pump that can inflate the air bags. When the air bags are filled with gas, the air bags, the frame and the pipeline cooperate with each other to enclose and form a detection space; the frame is connected to an air inlet pipe, the air pump and the air inlet pipe are connected, an air hole is opened in the air inlet pipe, and a sealing plug that can seal the air pipe is slidably connected in the air inlet pipe.

[0007] Preferably, a piston is slidably connected in the air inlet pipe, an air outlet is provided in the air inlet pipe, the air outlet is connected to the detection space, and the air inlet pipe is connected to the airbag through an air hole.

[0008] Preferably, the sealing plug is slidably connected to the piston, and the sealing plug is connected to the piston via a first spring.

[0009] Preferably, the air intake pipe is rotatably connected with a nut, the nut is threadedly connected with a sliding seat, the sliding seat is connected to the air intake pipe, and the sliding seat is connected to the piston via a second spring.

[0010] Preferably, the elastic force of the second spring is smaller than the elastic force of the first spring. In the initial state, under the action of the second spring and the first spring, the piston is located between the air outlet and the air hole, and the air hole is in an open state.

[0011] Preferably, the frame is provided with a pressure relief hole, and the frame is slidably connected with a pressure relief rod which can block the pressure relief hole. The pressure relief rod is connected to the frame through a third spring. In the initial state, under the action of the third spring, the pressure relief rod blocks the pressure relief hole.

[0012] Preferably, the frame is slidably connected to a push rod which can push the pressure relief rod to move so as to open the pressure relief hole, the push rod is located on one side of the pressure relief rod, and the push rod is connected to the frame through a tension spring; the frame is fixedly connected to a motor, the motor is connected to a cylindrical cam, the cylindrical cam and the frame are rotatably connected, the cylindrical cam is provided with a sliding groove, the push rod is connected to a telescopic column, and the telescopic column is slidably arranged in the sliding groove.

[0013] Preferably, the slide groove includes a horizontal groove, an inclined groove and a vertical groove, and both ends of the vertical groove are respectively connected with the inclined groove and the horizontal groove, and the other end of the horizontal groove is connected with the other end of the inclined groove.

[0014] Preferably, the frame is fixedly connected with a sliding sleeve, a conductive block is fixedly connected inside the sliding sleeve, and a conductive column is slidably connected to the sliding sleeve. When the conductive column slides and contacts the conductive block, the motor can be energized.

[0015] Preferably, the frame is fixedly connected to an air intake cylinder, the air intake cylinder is slidably connected to a sliding plug, the sliding plug is connected to the air intake cylinder via a fourth spring, and the sliding plug is fixedly connected to the conductive column.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present application is provided with an airbag, which can be inflated by an air pump. The airbag can be in close contact with the inner wall of the pipe. The airbag, the frame and the pipe can form a closed detection space at this time. By inflating the airbag, on the one hand, it can adapt to pipes with different inner diameters, and on the other hand, it has better air tightness, which is convenient for pipeline detection. While improving the sealing effect, it can also be suitable for the detection of pipes with different inner diameters.

[0018] 2. The present application is provided with a piston. As the air pressure in the air inlet pipe increases, the piston can be pushed to move, and the piston can drive the sealing plug to move to achieve the blocking of the air hole. Then, as the air pressure continues to increase, the piston can be pushed to continue to move. At this time, relative sliding occurs between the piston and the sealing plug, and the gas in the air inlet pipe can enter the detection space from the air outlet, so as to realize the inflation work in the detection space. Only one air pump is needed to realize the inflation of the airbag and the detection space at the same time, which effectively simplifies the operation, eliminates the need for complicated control, and effectively reduces the overall cost of the device.

[0019] 3. The present application is provided with an air inlet cylinder. With the entry of gas into the detection space, when the air pressure reaches an appropriate level, the sliding plug can be driven to move, and the sliding plug can drive the conductive column to move. After the conductive column and the conductive block are in contact, the motor can be energized, and the motor can drive the cylindrical cam to rotate, and the cylindrical cam can drive the push rod to move. When the push rod moves for a sufficient time, it will drive the pressure relief rod to move and open the pressure relief hole. The above-mentioned structure can keep the pressure in the detection space for a sufficient and appropriate time. If the air tightness is appropriate, the pressure is directly relieved. The detection effect is intuitive, and rapid detection of pipeline quality can be achieved with high detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0021] Figure 1 It is the overall front view of the present invention;

[0022] Figure 2 yes Figure 1 Enlarged view of the structure of the middle K part (working state 1);

[0023] Figure 3 yes Figure 1 Enlarged view of the structure of the middle K part (working state 2);

[0024] Figure 4 yes Figure 1 Enlarged view of the structure of the middle K part (working state three);

[0025] Figure 5 is an overall side view of the present invention;

[0026] Figure 6 yes Figure 1 Stereoscopic diagram of the middle cylindrical cam structure;

[0027] Figure 7 yes Figure 1 Expanded diagram of the cylindrical cam structure.

[0028] Description of reference numerals:

[0029] 1 frame; 2 walking mechanism; 301 pipeline; 3 air pump; 31 air outlet; 32 solenoid valve; 33 air bag; 34 sealing plug; 35 air hole; 36 first spring; 37 piston; 38 second spring; 39 air inlet pipe; 4 sleeve; 41 conductive block; 42 motor; 43 cylindrical cam; 44 telescopic column; 45 pressure relief hole; 46 pressure relief rod; 47 third spring; 48 push rod; 49 tension spring; 5 air inlet cylinder; 51 sliding plug; 52 fourth spring; 53 conductive column; 54 guide rod; 61 inclined slot; 62 horizontal slot; 63 vertical slot; 7 slide seat. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0032] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figure 1-Figure 7 As shown, this embodiment proposes a water conservancy pipeline quality inspection device, including a frame 1, the frame 1 is connected to a walking mechanism, the walking mechanism includes an electric push rod fixedly connected to the frame 1, a walking wheel rotatably connected to the output shaft of the electric push rod, the walking wheel is connected to a driving motor, the electric push rod and the driving motor are connected to a controller, the driving motor can be controlled to work by the controller, so that the frame 1 can be moved, the electric push rod can drive the walking wheel to contact the inner wall of the pipeline 301, so as to adapt to different pipe diameters.

[0034] Airbags 33 are connected to both ends of the frame 1, and the frame 1 is also connected to an air pump 3 that can inflate the airbags 33. When the airbags 33 are filled with gas, the airbags 33, the frame 1 and the pipeline 301 cooperate with each other to enclose a detection space. After the airbags 33 and the inner walls of the pipeline 301 are connected, the detection space can maintain good air tightness. The airbags 33 are wrapped in a ring shape on both sides of the frame 1. The airbags 33 and the frame 1 are detachably connected. By replacing airbags 33 of different sizes, it can adapt to pipelines of different sizes, or it is convenient to replace the airbags 33.

[0035] By inflating the airbag 33, on the one hand, it can adapt to pipes 301 with different inner diameters, and on the other hand, it has better air tightness, which is convenient for testing the pipe 301. While improving the sealing effect, it can also be suitable for testing pipes with different inner diameters.

[0036] The frame 1 is connected to an air intake pipe 39, and the air pump 3 is connected to the air intake pipe 39. The air can be supplied to the air intake pipe 3 through the air pump 3. The air intake pipe 39 is also connected to a solenoid valve 32. The solenoid valve 32, the air pump 3 and the controller are connected. The air intake pipe 39 can be exhausted by the solenoid valve 32. When the airbag 33 needs to be deflated, the solenoid valve 32 can be controlled to open by the controller to achieve exhaust.

[0037] An air hole 35 is provided in the air inlet pipe 39, and a sealing plug 34 is slidably connected in the air inlet pipe 39 to seal the air inlet pipe 39. The air pump 3 can transport gas into the air inlet pipe 39, and then the gas can enter the airbag 33 through the air hole 35, thereby realizing the inflation of the airbag 33.

[0038] A piston 37 is slidably connected in the air inlet pipe 39 . The air inlet pipe 39 is provided with an air outlet 31 . The air outlet 31 is connected to the detection space. The air inlet pipe 39 is connected to the air bag 33 through the air hole 35 .

[0039] The sealing plug 34 is slidably connected to the piston 37 . The sealing plug 34 is connected to the piston 37 via a first spring 36 . One end of the first spring 36 is connected to the sealing plug 34 , and the other end of the first spring 36 is connected to the piston 37 .

[0040] The air intake pipe 39 is rotatably connected with a nut, the nut is threadedly connected with a slide seat 7, the slide seat 7 is connected to the air intake pipe 39, the slide seat 7 is connected to the piston 37 through a second spring 38, the right end of the second spring 38 is connected to the slide seat 7, and the left end of the second spring 38 is connected to the piston 37.

[0041] By rotating the nut, the slide 7 can be driven to move, thereby adjusting the distance between the slide 7 and the piston 37, thereby adjusting the elastic force of the second spring 38 in the initial state, thereby realizing the adjustment of the inflation amount of the airbag 33. Only when the airbag 33 is full of air and the air pressure in the intake pipe 39 reaches a certain level, will the piston 37 be driven to move and the second spring 38 be compressed.

[0042] In the initial state, under the action of the second spring 38 and the first spring 36, the piston 37 is located between the air outlet 31 and the air hole 35, and the air hole 35 is in an open state. Therefore, when the air pump 3 supplies air to the air inlet pipe 39 at this time, the gas will not enter the detection space through the air outlet 31, but will enter the airbag 33 through the air hole 35.

[0043] The elastic force of the second spring 38 is smaller than the elastic force of the first spring 36. Therefore, as the pressure in the intake pipe 39 increases, the second spring 38 is deformed first, and the piston 37 moves first. The piston 37 will drive the sealing plug 34 to move, thereby closing the air hole 35. Then, as the pressure continues to increase, the piston 37 continues to move, and the piston 37 and the sealing plug 34 slide relative to each other, and the air outlet 31 will open at this time.

[0044] The frame 1 is provided with a pressure relief hole 45, through which the detection space can be connected to the outside air, and the frame 1 is slidably connected with a pressure relief rod 46 which can block the pressure relief hole 45, and the pressure relief rod 46 is connected to the frame 1 through a third spring 47. In the initial state, under the action of the third spring 47, the pressure relief rod 46 blocks the pressure relief hole 45.

[0045] The frame body 1 is slidably connected with a push rod 48 which can push the pressure relief rod 46 to move so as to open the pressure relief hole 45. The push rod 48 is located on one side of the pressure relief rod 46. The push rod 48 is connected to the frame body 1 through a tension spring 49. The left end of the tension spring 49 is connected to the frame body 1, and the right end of the tension spring 49 is connected to the push rod 48. In the initial state, there is enough gap between the push rod 48 and the pressure relief rod 46.

[0046] The frame body 1 is fixedly connected with a guide rod 54, which is arranged in a horizontal direction. The top rod 48 and the guide rod 54 are slidably connected. The guide rod 54 guides and limits the movement of the top rod 48. The guide rod 54 and the tension spring 49 are arranged in parallel.

[0047] The frame 1 is fixedly connected to a motor 42, the motor 42 is connected to a cylindrical cam 43, the cylindrical cam 43 and the frame 1 are rotatably connected, the cylindrical cam 43 is provided with a slide groove, the push rod 48 is connected to a telescopic column 44, the telescopic column 44 is slidably set in the slide groove, the motor 42 is connected to a controller, and the motor 42 can drive the cylindrical cam 43 to rotate.

[0048] The telescopic column 44 is slidably connected to the push rod 48. The telescopic column 44 is connected to the push rod 48 via a fifth spring. The fifth spring can keep the telescopic column 44 in contact with the bottom end of the slide slot at all times, preventing the telescopic column 44 from leaving the slide slot.

[0049] The slide groove includes a horizontal groove 62, an inclined groove 61 and a vertical groove 63. The two ends of the vertical groove 63 are respectively connected to the inclined groove 61 and the horizontal groove 62. The other end of the horizontal groove 62 is connected to the other end of the inclined groove 61. When the telescopic column 44 slides in the inclined groove 61, it can drive the push rod 48 to move toward the direction close to the pressure relief rod 46.

[0050] When the telescopic column 44 slides into the horizontal groove 62, the push rod 48 has driven the pressure relief rod 46 to move a distance, and this distance enables the pressure relief hole 45 to open, thereby realizing the gas outlet of the detection space. Through the set horizontal groove 62, as the cylindrical cam 43 rotates, the pressure relief hole 45 can always be in an open state, thereby providing sufficient gas outlet time.

[0051] The frame 1 is fixedly connected to a sliding sleeve 4, a conductive block 41 is fixedly connected inside the sliding sleeve 4, a conductive column 53 is slidably connected to the sliding sleeve 4, both the conductive block 41 and the conductive column 53 are connected to power lines, and the power line is connected to the motor 42, so when the conductive column 53 slides and contacts the conductive block 41, the motor 42 can be energized.

[0052] The conductive column 53 can also be replaced by an inductive metal rod, and the conductive block 41 can be replaced by a proximity switch. The proximity switch is connected to the controller. When the inductive metal rod moves to one side of the proximity switch, the proximity switch can be controlled to work. At this time, the proximity switch transmits a corresponding signal to the controller, and the controller controls the motor 42 to energize, thereby driving the cylindrical cam 43 to rotate.

[0053] The conductive column 53 and the conductive block 41 are matched. When the two are in contact, the motor 42 is energized. The on-off power supply can be used to control the start and stop of the motor 42. In addition, the rotation of the motor 42 is preset in the controller so that the motor 42 drives the cylindrical cam 43 to rotate one circle each time, and the speed of rotation can be slowed down enough by connecting a reducer.

[0054] The rotation speed is adapted to the inflation time. Only when the detection space is filled with air, the conductive column 53 will slide and contact the conductive block 41. After a period of pressure maintenance, the circular cam 43 will drive the ejector rod 48 to move to a state of contact with the pressure relief rod 46. By adjusting the rotation of the cylindrical cam 43, sufficient pressure maintenance time can be provided. In addition, when the motor 42 starts to work, it indicates that the detection space is already filled with appropriate air pressure. At this time, the controller controls the air pump 3 to stop working.

[0055] The frame 1 is fixedly connected to the air intake cylinder 5, and the air intake cylinder 5 is slidably connected to the sliding plug 51. The sliding plug 51 is connected to the air intake cylinder 5 through the fourth spring 52. The sliding plug 51 is fixedly connected to the conductive column 53. One end of the fourth spring 52 is connected to the air intake cylinder 5, and the other end of the fourth spring 52 is connected to the sliding plug 51. The elastic force of the fourth spring 52 is adapted to the air pressure of the detection space. When a higher air pressure is required, it is only necessary to select the fourth spring 52 with appropriate elastic force.

[0056] A method for using a water conservancy pipeline quality detection device, using the above-mentioned water conservancy pipeline quality detection device, comprises the following steps:

[0057] S1: As the frame 1 moves, when the frame 1 moves to the designated position, the air pump 3 starts to work, and the air pump 3 inflates the air inlet pipe 39, and the gas enters the air bag 33 through the air hole 35 to inflate the air bag 33. At this time, the air bag 33, the frame 1 and the pipeline 301 form a detection space;

[0058] S2: With the inflow of gas, when the air pressure in the air inlet pipe 39 reaches a specified intensity, the air pressure will push the piston 37 to move, compressing the second spring 38, and the piston 37 drives the sealing plug 34 to move, so that the sealing plug 34 can seal the air hole 35;

[0059] S3: Then, as the air pressure continues to increase, the piston 37 continues to move. At this time, the piston 37 and the sealing plug 34 slide relative to each other, and the piston 37 moves to the side of the gas outlet 31. The air inlet pipe 39 is connected to the detection space through the gas outlet 31, and the air pump 3 can transport the gas to the detection space through the gas outlet 31.

[0060] S4: As the gas continues to enter the detection space, the air pressure pushes the sliding plug 51 to move, and the sliding plug 51 pushes the guide column 53 to move. When the air pressure in the detection space reaches a specified intensity, the guide column 53 and the conductive block 41 contact, so that the motor 42 is energized, and the motor 42 drives the cylindrical cam 43 to rotate;

[0061] S5: When the telescopic rod 44 slides in the inclined groove 61, the telescopic rod 44 drives the push rod 48 to move toward the direction close to the pressure relief rod 46. When the telescopic rod 44 slides into the horizontal groove 62, the push rod 48 pushes the pressure relief rod 46 to open the pressure relief hole 45. At this time, the gas in the detection space is discharged from the pressure relief hole 45. Then, as the cylindrical cam 43 continues to rotate, when the telescopic column 44 moves into the vertical groove 63, under the action of the tension spring 49, the push rod 48 is reset, and the air tightness detection of the pipeline 301 is completed.

[0062] When the controller detects that the motor 42 is not powered on at all and the power-off time reaches a specified time, it indicates that a leak has occurred in the pipeline 301, and the staff can mark the location for subsequent inspection.

[0063] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0064] What is disclosed above is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A water conservancy pipeline quality detection device, comprising a frame (1), characterized in that: The frame (1) is connected to air bags (33) at both ends, and the frame (1) is also connected to an air pump (3) capable of inflating the air bags (33). When the air bags (33) are filled with gas, the air bags (33), the frame (1) and the pipe (301) cooperate with each other to enclose and form a detection space. The frame (1) is connected to an air intake pipe (39), the air pump (3) and the air intake pipe (39) are in communication, an air hole (35) is provided in the air intake pipe (39), and a sealing plug (34) capable of sealing the air pipe (39) is slidably connected in the air intake pipe (39); A piston (37) is slidably connected in the air intake pipe (39), an air outlet (31) is provided in the air intake pipe (39), the air outlet (31) is connected to the detection space, and the air intake pipe (39) is connected to the air bag (33) through an air hole (35); The sealing plug (34) and the piston (37) are slidably connected, and the sealing plug (34) is connected to the piston (37) via a first spring (36); The air intake pipe (39) is rotatably connected to a nut, the nut is threadedly connected to a slide seat (7), the slide seat (7) is connected to the air intake pipe (39), and the slide seat (7) is connected to the piston (37) via a second spring (38); The elastic force of the second spring (38) is smaller than the elastic force of the first spring (36). In the initial state, under the action of the second spring (38) and the first spring (36), the piston (37) is located between the air outlet (31) and the air hole (35), and the air hole (35) is in an open state.

2. A water conservancy pipeline quality detection device according to claim 1, characterized in that: The frame body (1) is provided with a pressure relief hole (45), and the frame body (1) is slidably connected with a pressure relief rod (46) capable of blocking the pressure relief hole (45). The pressure relief rod (46) is connected to the frame body (1) via a third spring (47). In an initial state, under the action of the third spring (47), the pressure relief rod (46) blocks the pressure relief hole (45).

3. A water conservancy pipeline quality detection device according to claim 2, characterized in that: The frame (1) is slidably connected to a push rod (48) which can push the pressure relief rod (46) to move so as to open the pressure relief hole (45); the push rod (48) is located on one side of the pressure relief rod (46); the push rod (48) is connected to the frame (1) via a tension spring (49); the frame (1) is fixedly connected to a motor (42); the motor (42) is connected to a cylindrical cam (43); the cylindrical cam (43) and the frame (1) are rotatably connected; the cylindrical cam (43) is provided with a slide groove; the push rod (48) is connected to a telescopic column (44); the telescopic column (44) is slidably arranged in the slide groove.

4. A water conservancy pipeline quality detection device according to claim 3, characterized in that: The slide groove comprises a horizontal groove (62), an inclined groove (61) and a vertical groove (63); two ends of the vertical groove (63) are respectively connected to the inclined groove (61) and the horizontal groove (62); the other end of the horizontal groove (62) is connected to the other end of the inclined groove (61).

5. A water conservancy pipeline quality detection device according to claim 4, characterized in that: The frame (1) is fixedly connected to a sliding sleeve (4), a conductive block (41) is fixedly connected inside the sliding sleeve (4), and a conductive column (53) is slidably connected to the sliding sleeve (4). When the conductive column (53) slides and contacts the conductive block (41), the motor (42) can be energized.

6. A water conservancy pipeline quality detection device according to claim 5, characterized in that: The frame (1) is fixedly connected to an air intake cylinder (5), the air intake cylinder (5) is slidably connected to a sliding plug (51), the sliding plug (51) is connected to the air intake cylinder (5) via a fourth spring (52), and the sliding plug (51) is fixedly connected to the conductive column (53).

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