Pipe diameter detection device for building water supply and drainage pipeline

Abstract

The utility model relates to the technical field of constructional engineering, and discloses a building water supply and drainage pipeline diameter detection device which comprises a bottom plate, an equipment plate is fixedly connected to the rear side of the top wall of the bottom plate, a first equipment frame is fixedly connected to the front side of the top wall of the equipment plate, and a second equipment frame is fixedly connected to the middle of the top wall of the equipment plate. The adjacent sides of the inner wall of the first equipment frame are fixedly connected with detector spring grooves, the inner bottom walls of the two detector spring grooves are fixedly connected with detector compression springs, and the adjacent sides of the two detector compression springs are fixedly connected with detector spring covers. The adjacent sides of the two detector spring covers are in threaded connection with two fixing screws. According to the utility model, the direction movement of the detection plate and the detection wheel is controlled through the expansion and contraction of the spring group of the detector and the spring group of the detection wheel, so that pipelines with different specifications and sizes are detected, and the working efficiency of engineers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering, in particular to a device for detecting the diameter of a building water supply and drainage pipeline. Background Art

[0002] The pipe diameter detection device for engineering water supply and drainage pipes is a device used to detect the pipe diameter of water supply and drainage pipes. It usually includes components such as sensors, data acquisition systems and displays. The sensor measures the internal diameter of the pipe, and transmits the measured data to the data acquisition system for processing and analysis, and finally displays the actual diameter information of the pipe on the display. This device can help engineering personnel accurately understand the size of the pipe and ensure the quality of the pipe.

[0003] Currently, most detection devices can only detect pipes of uniform diameter. Pipes at large-scale construction sites have the characteristics of various sizes and specifications, which consumes a lot of time and reduces the work efficiency of engineers. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a pipe diameter detection device for building water supply and drainage pipes, aiming to improve the problem that the detection device can only detect pipes with uniform diameters.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a device for detecting the diameter of a building water supply and drainage pipeline, comprising a bottom plate, a device plate is fixedly connected to the rear side of the top wall of the bottom plate, a first device frame is fixedly connected to the front side of the top wall of the device plate, a second device frame is fixedly connected to the middle part of the top wall of the device plate, adjacent sides of the inner wall of the first device frame are fixedly connected to a detector spring groove, the inner bottom walls of the two detector spring grooves are fixedly connected to a detector compression spring, the adjacent sides of the two detector compression springs are fixedly connected to a detector spring cover, the adjacent sides of the two detector spring covers are threadedly connected to two fixing screws, the outer walls of the two fixing screws are threadedly connected to the detection plate, the two detection plates are threadedly connected to the two detector spring covers using the two fixing screws, the adjacent sides of the two detection plates are fixedly connected to a detection sensor sheet, the inner top wall of the second equipment frame is fixedly connected to the detector spring groove, the inner top wall of the detector spring groove is fixedly connected to the detector compression Spring, the bottom end of the detector compression spring is fixedly connected with the detector spring cover, the bottom wall of the detector spring cover is threadedly connected with two fixing screws, the outer walls of the two fixing screws are threadedly connected with the detection plate, the inner wall of the detection plate is fixedly connected with the detection sensor sheet, the middle front side of the top wall of the bottom plate and the middle rear side of the top wall are fixedly connected with two detection wheel fixing columns, the top walls of multiple detection wheel fixing columns are fixedly connected with detection wheel spring grooves, the inner bottom walls of multiple detection wheel spring grooves are fixedly connected with detection wheel compression springs, the top walls of multiple detection wheel compression springs are fixedly connected with detection wheel spring covers, the top walls of multiple detection wheel spring covers are fixedly connected with detection wheel lower gaskets, the top walls of multiple detection wheel lower gaskets are fixedly connected with two detection wheel gasket connecting buckles, the top walls of multiple detection wheel gasket connecting buckles are fixedly connected with detection wheel upper gaskets, the inner walls of multiple detection wheel lower gaskets are rotatably connected with detection wheel inner pulley columns, and the outer walls of two detection wheel inner pulley columns are fixedly connected with tilted detection wheels.

[0006] As a further description of the above technical solution:

[0007] A plurality of correction hand fixing columns are equidistantly fixedly connected to the left and right sides of the bottom plate, a plurality of top walls of the correction hand fixing columns are fixedly connected to the correction hand fixing plates, a plurality of adjacent sides of the correction hand fixing plates are fixedly connected to the correction hand electric telescopic rods, a plurality of output ends of the correction hand electric telescopic rods are fixedly connected to the correction tentacles, a plurality of transmission wheel fixing columns are fixedly connected to the front side of the top wall of the bottom plate, a plurality of top walls of the transmission wheel fixing columns are fixedly connected to the pressure sensors, a plurality of top walls of the pressure sensors are fixedly connected to the transmission wheel lower gaskets, a plurality of top walls of the transmission wheel lower gaskets are fixedly connected to two transmission wheel gasket connecting buckles, a plurality of top walls of the transmission wheel gasket connecting buckles are fixedly connected to the transmission wheel upper gaskets, a plurality of inner walls of the transmission wheel lower gaskets are rotatably connected to the transmission wheel inner pulley columns, and a plurality of outer walls of the transmission wheel inner pulley columns are fixedly connected to the planar transmission wheel.

[0008] As a further description of the above technical solution:

[0009] A third equipment rack is fixedly connected to the rear side of the base plate, gravity detection columns are fixedly connected to the left and right sides of the inner top wall of the third equipment rack, gravity detection springs are fixedly connected to the bottom walls of the two gravity detection columns, connecting pieces are fixedly connected to the bottom ends of the two gravity detection springs, gravity detection electric telescopic rods are arranged inside the two gravity detection springs, the top walls of the two gravity detection electric telescopic rods are fixedly connected to the two gravity detection columns, the output ends of the two gravity detection electric telescopic rods are fixedly connected to the two connecting pieces, and gravity detection ropes are fixedly connected to the bottom walls of the two connecting pieces.

[0010] As a further description of the above technical solution:

[0011] An ultrasonic base plate is fixedly connected to the right side of the inner wall of the third equipment rack, an ultrasonic generator is fixedly connected to the left top end of the ultrasonic base plate, and an ultrasonic receiver is fixedly connected to the left bottom end of the ultrasonic base plate.

[0012] As a further description of the above technical solution:

[0013] An alarm light is fixedly connected to the rear side of the top wall of the first equipment rack, a buzzer is fixedly connected to the front side of the top wall of the first equipment rack, the alarm light is fixedly connected to the rear side of the top wall of the second equipment rack, and the buzzer is fixedly connected to the front side of the top wall of the second equipment rack.

[0014] As a further description of the above technical solution:

[0015] A tool box is fixedly connected to the left side of the top wall of the bottom plate.

[0016] As a further description of the above technical solution:

[0017] A console is fixedly connected to the right side of the top wall of the bottom plate.

[0018] As a further description of the above technical solution:

[0019] A hardness detector is fixedly connected to the lower top wall of the third equipment rack.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, the pipeline to be inspected is sent into the first equipment frame by the conveying wheel. The compression spring of the detector in the first equipment frame can be adjusted according to the pipelines of different diameters. The bottom inspection wheel can also be adjusted in height according to different pipelines. At the same time, the inspection plate can inspect it, which is more time-saving and labor-saving than manual inspection.

[0022] 2. In the present invention, the pipeline to be inspected only needs to be placed at the approximate position of the conveying wheel. The position of the pipeline is detected by the pressure sensor under the conveying wheel, and the correction tentacles can correct it to a vertical state, making it more convenient to enter the equipment frame for inspection, saving a lot of labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front view of a device for detecting the diameter of a building water supply and drainage pipeline proposed by the utility model;

[0024] Figure 2 This is a three-dimensional diagram of a pipe diameter detection device for building water supply and drainage pipes proposed by the utility model;

[0025] Figure 3 This is a structural schematic diagram of a pressure sensor for a pipe diameter detection device for building water supply and drainage pipes proposed by the utility model;

[0026] Figure 4 This is a structural schematic diagram of a tilt detection wheel of a building water supply and drainage pipe diameter detection device proposed by the utility model;

[0027] Figure 5 The utility model is a front view of a gravity detection column of a pipe diameter detection device for building water supply and drainage pipes.

[0028] Legend:

[0029] 1. Bottom plate; 2. Equipment plate; 3. First equipment rack; 4. Second equipment rack; 5. Third equipment rack; 6. Detector spring slot; 7. Detector compression spring; 8. Detector spring cover; 9. Fixing screws; 10. Detection plate; 11. Detection sensor sheet; 12. Detection wheel fixing column; 13. Detection wheel spring slot; 14. Detection wheel compression spring; 15. Detection wheel spring cover; 16. Detection wheel lower gasket; 17. Detection wheel gasket connecting buckle; 18. Detection wheel upper gasket; 19. Detection wheel inner pulley column; 20. Tilt detection wheel; 21. Transmission wheel fixing column; 22. Pressure sensor; 23. Transmission wheel 1. The lower gasket of the transmission wheel; 24. The connecting buckle of the transmission wheel gasket; 25. The upper gasket of the transmission wheel; 26. The inner pulley column of the transmission wheel; 27. The flat transmission wheel; 28. The fixing column of the correction hand; 29. ​​The fixing plate of the correction hand; 30. The electric telescopic rod of the correction hand; 31. The correction tentacle; 32. The alarm light; 33. The buzzer; 34. The tool box; 35. The control console; 36. The gravity detection column; 37. The gravity detection spring; 38. The electric telescopic rod of the gravity detection; 39. The connecting piece; 40. The gravity detection rope; 41. The ultrasonic bottom plate; 42. The ultrasonic generator; 43. The ultrasonic receiver; 44. The hardness detector. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1 , Figure 2 and Figure 4, an embodiment provided by the utility model: a device for detecting the diameter of a building water supply and drainage pipeline, comprising a bottom plate 1, a device plate 2 is fixedly connected to the rear side of the top wall of the bottom plate 1, a first device frame 3 is fixedly connected to the front side of the top wall of the device plate 2, a second device frame 4 is fixedly connected to the middle part of the top wall of the device plate 2, a detector spring groove 6 is fixedly connected to the adjacent side of the inner wall of the first device frame 3, a detector compression spring 7 is fixedly connected to the inner bottom wall of the two detector spring grooves 6, a detector spring cover 8 is fixedly connected to the adjacent side of the two detector spring covers 7, two fixing screws 9 are threadedly connected to the adjacent side of the two detector spring covers 8, a detection plate 10 is threadedly connected to the outer wall of the two fixing screws 9, the two detection plates 10 are threadedly connected to the two detector spring covers 8 using two fixing screws 9, a detection sensor sheet 11 is fixedly connected to the adjacent side of the two detection plates 10, a detector spring groove 6 is fixedly connected to the inner top wall of the second device frame 4, a detector spring groove 6 is fixedly connected to the inner top wall of the detector spring groove 6, a detector compression spring 7 is fixedly connected to the bottom of the detector compression spring 7 The end is fixedly connected with a detector spring cover 8, the bottom wall of the detector spring cover 8 is threadedly connected with two fixing screws 9, the outer walls of the two fixing screws 9 are threadedly connected with a detection plate 10, the inner wall of the detection plate 10 is fixedly connected with a detection sensor sheet 11, the middle front side of the top wall of the bottom plate 1 is fixedly connected with two detection wheel fixing columns 12, the top walls of multiple detection wheel fixing columns 12 are fixedly connected with detection wheel spring grooves 13, the inner bottom walls of multiple detection wheel spring grooves 13 are fixedly connected with detection wheel compression springs 14, and multiple The top walls of the multiple detection wheel compression springs 14 are fixedly connected with detection wheel spring covers 15, the top walls of the multiple detection wheel spring covers 15 are fixedly connected with detection wheel lower gaskets 16, the top walls of the multiple detection wheel lower gaskets 16 are fixedly connected with two detection wheel gasket connecting buckles 17, the top walls of the multiple detection wheel gasket connecting buckles 17 are fixedly connected with detection wheel upper gaskets 18, the inner walls of the multiple detection wheel lower gaskets 16 are rotatably connected with detection wheel inner pulley columns 19, and the outer walls of the two detection wheel inner pulley columns 19 are fixedly connected with tilted detection wheels 20;

[0032] Specifically, the detector spring slot 6, the detector compression spring 7 and the detector spring cover 8 in the first equipment frame 3 form a spring group, so that during the detection process, the distance between the spring groups can be adjusted so that the detection plate 10 on the adjacent side of the spring group can effectively fit the detected pipeline for precise measurement. The fixing screws 9 are used to fix the detection plate 10 and the spring group. During the detection process, the detection sensor sheet 11 rubs against the detected pipeline and is a wearing part. It is fixed by the fixing screws 9 for easy replacement. The surface of the inclined detection wheel 20 below is concave in the middle and convex on both sides. This shape is beneficial to the stability of the detected pipeline during the detection process and is not easy to move during the detection process. A spring group is also added below the detection wheel to adjust the pipelines of different specifications up and down so that pipelines of different specifications can be detected.

[0033] Reference Figure 1 , Figure 2 and Figure 3 , multiple correction hand fixing columns 28 are equidistantly fixedly connected to the left and right sides of the bottom plate 1, the top walls of the multiple correction hand fixing columns 28 are fixedly connected to the correction hand fixing plates 29, the adjacent sides of the multiple correction hand fixing plates 29 are fixedly connected to the correction hand electric telescopic rods 30, the output ends of the multiple correction hand electric telescopic rods 30 are fixedly connected to the correction tentacles 31, the front side of the top wall of the bottom plate 1 is fixedly connected to multiple transmission wheel fixing columns 21, the top walls of the multiple transmission wheel fixing columns 21 are fixedly connected to the pressure sensors 22, the top walls of the multiple pressure sensors 22 are fixedly connected to the transmission wheel lower gaskets 23, the top walls of the multiple transmission wheel lower gaskets 23 are fixedly connected to two transmission wheel gasket connecting buckles 24, the top walls of the multiple transmission wheel gasket connecting buckles 24 are fixedly connected to the transmission wheel upper gaskets 25, the inner walls of the multiple transmission wheel lower gaskets 23 are rotatably connected to the transmission wheel inner pulley columns 26, and the outer walls of the multiple transmission wheel inner pulley columns 26 are fixedly connected to the plane transmission wheels 27;

[0034] Specifically, when the inspected pipe is moved onto the planar conveyor wheel 27, it is not necessary to accurately align it with the inspection frame, but only needs to be roughly placed on the planar conveyor wheel 27. The pressure sensor 22 under the planar conveyor wheel 27 can accurately understand each planar conveyor wheel 27 through which the inspected pipe passes. The correction hand fixing column 28 and the correction hand fixing plate 29 play a supporting role, and then the correction hand is pushed through the correction hand electric telescopic rod 30 on the corresponding surface of the correction hand fixing plate 29. The correction tentacle 31 at the output end of the correction hand electric telescopic rod 30 is semi-arc-shaped, which can increase the contact area with the inspected pipe and prevent slipping during the pushing process.

[0035] Reference Figure 5 The rear side of the bottom plate 1 is fixedly connected with a third equipment rack 5, and the left and right sides of the inner top wall of the third equipment rack 5 are fixedly connected with gravity detection columns 36, and the bottom walls of the two gravity detection columns 36 are fixedly connected with gravity detection springs 37, and the bottom ends of the two gravity detection springs 37 are fixedly connected with connecting pieces 39, and the interiors of the two gravity detection springs 37 are provided with gravity detection electric telescopic rods 38, and the top walls of the two gravity detection electric telescopic rods 38 are fixedly connected with the two gravity detection columns 36, and the output ends of the two gravity detection electric telescopic rods 38 are fixedly connected with the two connecting pieces 39, and the bottom walls of the two connecting pieces 39 are fixedly connected with gravity detection ropes 40;

[0036] Specifically, after the first equipment rack 3 and the second equipment rack 4 are inspected, the gravity detection column 36 on the top of the third equipment rack 5 connects the gravity detection electric telescopic rod 38 and the gravity detection spring 37, and a connecting piece 39 is fixed thereunder. The connecting piece 39 is used to connect the gravity detection rope 40 at the bottom. When the inspected pipeline passes through the third equipment rack 5, the gravity detection electric telescopic rod 38 contracts to detect the tension of the gravity detection spring 37. The weight of the inspected pipeline can be obtained by calculation, and it can be inferred whether the pipeline meets the standards.

[0037] Reference Figure 5 The right side of the inner wall of the third equipment rack 5 is fixedly connected with an ultrasonic bottom plate 41, the left top end of the ultrasonic bottom plate 41 is fixedly connected with an ultrasonic generator 42, and the left bottom end of the ultrasonic bottom plate 41 is fixedly connected with an ultrasonic receiver 43;

[0038] Specifically, ultrasonic waves are emitted by the ultrasonic generator 42, and the ultrasonic receiver 43 receives the ultrasonic wave signals rebounded after the detection, so as to detect whether the inner wall of the detected pipeline is qualified.

[0039] Reference Figure 2 , an alarm light 32 is fixedly connected to the rear side of the top wall of the first equipment rack 3, a buzzer 33 is fixedly connected to the front side of the top wall of the first equipment rack 3, an alarm light 32 is fixedly connected to the rear side of the top wall of the second equipment rack 4, and a buzzer 33 is fixedly connected to the front side of the top wall of the second equipment rack 4;

[0040] Specifically, when passing through the corresponding equipment rack, if the test result is unqualified, the alarm light 32 will flash red and the buzzer 33 will sound an alarm to remind the inspector that the tested pipeline is unqualified.

[0041] Reference Figure 1 , a tool box 34 is fixedly connected to the left side of the top wall of the bottom plate 1;

[0042] Specifically, the tool box 34 is used to store wearing parts and equipment maintenance tools.

[0043] Reference Figure 1 , a console 35 is fixedly connected to the right side of the top wall of the bottom plate 1;

[0044] Specifically, the control console 35 can control the operating speed of the detection device and intuitively understand information such as the detected parameters.

[0045] Reference Figure 5 , a hardness detector 44 is fixedly connected to the lower top wall of the third equipment rack 5;

[0046] Specifically, the hardness detector 44 is used to detect whether the hardness of the tested pipe is qualified.

[0047] Working principle: the detector spring slot 6, the detector compression spring 7 and the detector spring cover 8 in the first equipment frame 3 form a spring group, so that during the detection process, the distance between the spring groups can be adjusted so that the detection plate 10 on the adjacent side of the spring group can effectively fit the detected pipeline for precise measurement. The fixing screws 9 are used to fix the detection plate 10 and the spring group. During the detection process, the detection sensor sheet 11 rubs against the detected pipeline and is a wearing part. It is fixed by the fixing screws 9 for easy replacement. The surface of the inclined detection wheel 20 below is concave in the middle and convex on both sides. This shape is conducive to the stability of the detected pipeline during the detection process and is not easy to move during the detection process. A spring group is also added below the detection wheel to adjust the pipelines of different specifications up and down so that pipelines of different specifications can be detected. The detector spring slot 6, the detector compression spring 7 and the detector spring cover 8 in the first equipment frame 3 form a spring group, so that during the detection process, the spacing between the spring groups can be adjusted, so that the detection plate 10 on the adjacent side of the spring group can effectively fit the detected pipeline for accurate measurement. The fixing screws 9 are used to fix the detection plate 10 and the spring group. During the detection process, the detection sensor sheet 11 rubs against the detected pipeline and is a wearing part. It is fixed by the fixing screws 9 for easy replacement. The surface of the inclined detection wheel 20 below is concave in the middle and convex on both sides. This shape is beneficial to the stability of the detected pipeline during the detection process and is not easy to move during the detection process. A spring group is also added below the detection wheel to adjust the pipelines of different specifications up and down so that pipelines of different specifications can be detected.

[0048] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting the diameter of a building water supply and drainage pipe, comprising a bottom plate (1), characterized in that: The rear side of the top wall of the bottom plate (1) is fixedly connected to an equipment plate (2), the front side of the top wall of the equipment plate (2) is fixedly connected to a first equipment frame (3), the middle part of the top wall of the equipment plate (2) is fixedly connected to a second equipment frame (4), the adjacent sides of the inner wall of the first equipment frame (3) are fixedly connected to a detector spring groove (6), the inner bottom walls of the two detector spring grooves (6) are fixedly connected to a detector compression spring (7), the adjacent sides of the two detector compression springs (7) are fixedly connected to a detector spring cover (8), and the adjacent sides of the two detector spring covers (8) are threadedly connected to Two fixing screws (9), the outer walls of the two fixing screws (9) are threadedly connected with a detection plate (10), the two detection plates (10) and the two detector spring covers (8) are threadedly connected using the two fixing screws (9), the adjacent sides of the two detection plates (10) are fixedly connected with a detection sensor sheet (11), the inner top wall of the second equipment frame (4) is fixedly connected with the detector spring groove (6), the inner top wall of the detector spring groove (6) is fixedly connected with the detector compression spring (7), and the bottom end of the detector compression spring (7) is fixedly connected with the detector spring cover ( 8), the bottom wall of the detector spring cover (8) is threadedly connected with two fixing screws (9), the outer walls of the two fixing screws (9) are threadedly connected with the detection plate (10), the inner wall of the detection plate (10) is fixedly connected with the detection sensor sheet (11), the middle front side of the top wall of the bottom plate (1) is fixedly connected with two detection wheel fixing columns (12), the top walls of the plurality of detection wheel fixing columns (12) are fixedly connected with detection wheel spring grooves (13), the inner bottom walls of the plurality of detection wheel spring grooves (13) are fixedly connected with detection wheel compression springs (14), and the plurality of detection wheels are fixedly connected with the detection wheel spring grooves (13). The top walls of the wheel compression springs (14) are all fixedly connected to the detection wheel spring covers (15), the top walls of the plurality of detection wheel spring covers (15) are all fixedly connected to the detection wheel lower gaskets (16), the top walls of the plurality of detection wheel lower gaskets (16) are all fixedly connected to two detection wheel gasket connecting buckles (17), the top walls of the plurality of detection wheel gasket connecting buckles (17) are all fixedly connected to the detection wheel upper gaskets (18), the inner walls of the plurality of detection wheel lower gaskets (16) are rotatably connected to the detection wheel inner pulley columns (19), and the outer walls of the two detection wheel inner pulley columns (19) are fixedly connected to the tilt detection wheel (20).

2. A device for detecting the diameter of a building water supply and drainage pipe according to claim 1, characterized in that: A plurality of correction hand fixing columns (28) are fixedly connected at equal distances on both left and right sides of the bottom plate (1); a correction hand fixing plate (29) is fixedly connected to the top walls of the plurality of correction hand fixing columns (28); a correction hand electric telescopic rod (30) is fixedly connected to the adjacent side of the plurality of correction hand fixing plates (29); a correction tentacles (31) are fixedly connected to the output ends of the plurality of correction hand electric telescopic rods (30); a plurality of transmission wheel fixing columns (21) are fixedly connected to the front side of the top wall of the bottom plate (1); and the top walls of the plurality of transmission wheel fixing columns (21) are fixedly connected to the front side of the top wall of the plurality of A pressure sensor (22) is fixedly connected, the top walls of the plurality of pressure sensors (22) are fixedly connected to a transmission wheel lower gasket (23), the top walls of the plurality of transmission wheel lower gaskets (23) are fixedly connected to two transmission wheel gasket connecting buckles (24), the top walls of the plurality of transmission wheel gasket connecting buckles (24) are fixedly connected to a transmission wheel upper gasket (25), the inner walls of the plurality of transmission wheel lower gaskets (23) are rotatably connected to a transmission wheel inner pulley column (26), and the outer walls of the plurality of transmission wheel inner pulley columns (26) are fixedly connected to a planar transmission wheel (27).

3. A device for detecting the diameter of a building water supply and drainage pipe according to claim 1, characterized in that: The rear side of the bottom plate (1) is fixedly connected to a third equipment frame (5); the left and right sides of the inner top wall of the third equipment frame (5) are fixedly connected to gravity detection columns (36); the bottom walls of the two gravity detection columns (36) are fixedly connected to gravity detection springs (37); the bottom ends of the two gravity detection springs (37) are fixedly connected to connecting pieces (39); gravity detection electric telescopic rods (38) are arranged inside the two gravity detection springs (37); the top walls of the two gravity detection electric telescopic rods (38) are fixedly connected to the two gravity detection columns (36); the output ends of the two gravity detection electric telescopic rods (38) are fixedly connected to the two connecting pieces (39); and the bottom walls of the two connecting pieces (39) are fixedly connected to gravity detection ropes (40).

4. A device for detecting the diameter of a building water supply and drainage pipe according to claim 3, characterized in that: An ultrasonic base plate (41) is fixedly connected to the right side of the inner wall of the third equipment rack (5), an ultrasonic generator (42) is fixedly connected to the left top end of the ultrasonic base plate (41), and an ultrasonic receiver (43) is fixedly connected to the left bottom end of the ultrasonic base plate (41).

5. A device for detecting the diameter of a building water supply and drainage pipe according to claim 1, characterized in that: An alarm light (32) is fixedly connected to the rear side of the top wall of the first equipment rack (3), a buzzer (33) is fixedly connected to the front side of the top wall of the first equipment rack (3), the alarm light (32) is fixedly connected to the rear side of the top wall of the second equipment rack (4), and the buzzer (33) is fixedly connected to the front side of the top wall of the second equipment rack (4).

6. A device for detecting the diameter of a building water supply and drainage pipe according to claim 1, characterized in that: A tool box (34) is fixedly connected to the left side of the top wall of the bottom plate (1).

7. A device for detecting the diameter of a building water supply and drainage pipe according to claim 1, characterized in that: A control console (35) is fixedly connected to the right side of the top wall of the base plate (1).

8. A device for detecting the diameter of a building water supply and drainage pipe according to claim 3, characterized in that: A hardness detector (44) is fixedly connected to the lower top wall of the third equipment rack (5).

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