Urban drainage system blockage detection device

Abstract

The utility model provides an urban drainage system blocking detection device, which relates to the technical field of drainage pipe blocking detection, and comprises a detection pipe, a source connecting seat is embedded and fixedly connected in the pipe wall of the detection pipe, the top end of the connecting seat is hollow and is provided with an access cover, and the inner wall of the connecting seat is connected with a lifting seat in a sliding manner. By means of the mode that the detection pipes are installed at the two ends of the drainage pipeline, when water flow in the drainage pipeline passes through the detection pipes, the water flow acts on the buoyancy plate to generate upward thrust on the buoyancy plate, the buoyancy plate generates thrust on the penetrating frame, and then the penetrating frame generates pressure on the pressure sensor; the flow velocity of water flow entering and flowing out of the drainage pipeline can be judged in real time by judging and analyzing numerical values of the pressure sensors at the two ends of the drainage pipeline, and then whether the drainage pipeline is blocked or not can be judged conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage pipe blockage detection, in particular to a blockage detection device for an urban drainage system. Background Art

[0002] The urban drainage system is an engineering facility system that treats and removes urban sewage and rainwater. It is an integral part of urban public facilities. It is usually composed of pipes of different lengths and curvatures laid along established routes and heights, and is designed to take timely response measures when the drainage pipes are blocked.

[0003] After retrieval

[0004] A detection device for a drainage pipe blockage fault in the prior art has the publication number CN221146234U. When in use, first pull out the first support rod and the second support rod and adjust the length according to the depth of the sewer pipe, then lock them, and then insert the fixing ring into the drainage pipe. The output end of the motor drives the gear to rotate, and the gear 7 drives the limit ring to rotate through the annular rack on the inner side of the limit ring. When the limit ring rotates, the positioning pin is limited by the arc groove. The positioning pin drives the limit block to expand. When the limit block is extended, it is fixed to the inner wall of the drainage pipe through the fixing plate to fix the sensor. Then, the sensor is used to detect whether the drainage pipe is blocked.

[0005] However, when the existing technology is used, the drainage pipe is manually checked for blockage regularly or irregularly. However, the drainage pipe may be blocked during the period when the personnel have not checked the drainage pipe. Therefore, when the personnel check the drainage pipe, the drainage pipe is already blocked, which increases the difficulty of handling for the personnel. Therefore, the existing technology has certain instability when detecting whether the drainage pipe is blocked. Utility Model Content

[0006] The purpose of the utility model is to solve the problems existing in the prior art and to propose a blockage detection device for urban drainage systems.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a blockage detection device for an urban drainage system, comprising a detection tube, a source connection seat embedded in the wall of the detection tube, the top of the connection seat is hollowed out and is equipped with an inspection cover, the inner wall of the connection seat is slidably connected to a lifting seat, an electric push rod is connected between the corner of the inner bottom surface of the lifting seat and the inspection cover, and a through-frame is slidably connected through the inner bottom surface of the lifting seat, the bottom edge of the through-frame extends into the detection tube, and the outer bottom surface of the lifting seat is rotatably connected to a buoyancy plate that contacts the bottom edge of the through-frame, one of the inner side walls of the lifting seat is rotatably connected to a rotating arm, and the swinging end of the rotating arm is fixedly connected to a pressure sensor for contacting the top edge of the through-frame.

[0008] Preferably, an arc strip is provided through the surface of the buoyancy plate, one side of the arc strip extends upward and is provided through the bottom surface of the lifting seat, and a limit block for contacting the inner bottom surface of the lifting seat is fixedly connected to the penetration frame.

[0009] Preferably, a sealing plate extending into the wall of the detection tube is embedded in the bottom edge of the inner wall of one side of the lifting seat, the outer wall of the detection tube is hollowed out at the sealing plate, and the sealing plate extends outward from the side of the connecting seat and is slidably connected to the hollow part of the sealing plate, and an electric push rod is also fixedly connected between the connecting seat and the extension of the sealing plate.

[0010] Preferably, inclined springs are fixedly connected between the middle positions on both sides of the rotating arm and the inner wall of the lifting seat.

[0011] Preferably, a rack is slidably inserted into the inner bottom surface of the lifting seat and a gear is rotatably connected to the rack. One end of the gear is fixedly connected to a shift rod. One end of the shift rod is cylindrical and extends to be slidably connected to the side wall of the rotating arm.

[0012] Preferably, the side of the rack extends upward and is fixedly connected to a special-shaped rod, the end of the arc bar located in the lifting seat extends outward in a "7" shape, and the inner corner of the extended part of the arc bar is slidably connected to the surface of the special-shaped rod.

[0013] Preferably, the center of the arc strip is located at the rotation point of the buoyancy plate and the lifting seat.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are:

[0015] 1. In the present invention, by setting up a detection tube and utilizing the method of installing the detection tube at both ends of the drainage pipe, when the water flow in the drainage pipe passes through the detection tube, it acts on the buoyancy plate to generate an upward thrust on the buoyancy plate, and the buoyancy plate generates a thrust on the penetration frame, thereby enabling the penetration frame to generate pressure on the pressure sensor. By judging and analyzing the values of the pressure sensors at both ends of the drainage pipe, the flow rate of the water entering and flowing out of the drainage pipe can be judged in real time, thereby facilitating the judgment of whether the drainage pipe is blocked.

[0016] 2. In the utility model, by setting gears, racks and special-shaped rods, the pressure sensor can be shifted and the arc bar can be raised in sequence by moving the rack. That is, the limit on the top of the penetration frame is first released, and then the arc bar is used to drive the buoyancy plate to swing up, so that the buoyancy plate and the penetration frame enter the connecting seat, and then the connecting seat and the detection tube are separated by the provided sealing plate, so that the splashed silt can enter the connecting seat when flushing the drainage pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a schematic diagram of the three-dimensional structure of a blockage detection device for an urban drainage system proposed by the utility model;

[0018] Figure 2 This utility model proposes a device for detecting blockage in urban drainage system Figure 1 Schematic diagram of the cross-sectional structure;

[0019] Figure 3 This utility model proposes a device for detecting blockage in urban drainage system Figure 2 Schematic diagram of the cross-sectional structure;

[0020] Figure 4 for Figure 3 A side structural diagram of

[0021] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0022] Figure 6 for Figure 4 Front view of .

[0023] Legend: 1. Detection tube; 2. Connecting seat; 3. Inspection cover; 4. Electric push rod; 5. Closing plate; 6. Buoyancy plate; 7. Through-frame; 8. Curved bar; 9. Inclined spring; 10. Lifting seat; 11. Special-shaped rod; 12. Limit block; 13. Pressure sensor; 14. Push rod; 15. Rotating arm; 16. Rack; 17. Gear. DETAILED DESCRIPTION

[0024] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] like Figure 1-6 As shown, a blockage detection device for an urban drainage system includes a detection tube 1, which is installed at the junction of the pipe openings of two sections of drainage pipes. When in use, water flowing through the drainage pipe passes through the detection tube 1. By comparing the water flow rates in the detection tubes 1 of the two sections of the drainage pipe, it is determined whether there is a blockage in the section of the drainage pipe. The structure of detecting the water flow rate is as follows:

[0027] The detection tube 1 has a fixed connection source connection seat 2 embedded in the wall of the tube. The top of the connection seat 2 is hollowed out and is installed with an inspection cover 3. The inner wall of the connection seat 2 is slidably connected to a lifting seat 10. An electric push rod 4 is connected between the bottom corner of the lifting seat 10 and the inspection cover 3. By removing the inspection cover 3, the lifting seat 10 can be simultaneously pulled out of the connection seat 2 under the connection action of the electric push rod 4, which is convenient for inspecting the structure installed on the lifting seat 10. In addition, during use, the electric push rod 4 can be used to extend and retract according to the liquid level of the water flow in the drainage pipe. When the position of the inspection cover 3 remains unchanged, the lifting seat 10 can be raised and lowered to ensure that the structure set on its surface is in contact with the water. The water surface is detected and the water flow rate is detected. The inner bottom surface of the lifting seat 10 is slidably connected with a penetration frame 7. The bottom edge of the penetration frame 7 extends into the detection tube 1. The outer bottom surface of the lifting seat 10 is rotatably connected with a buoyancy plate 6 in contact with the bottom edge of the penetration frame 7. The buoyancy plate 6 is tilted. When the water flow rate is fast, the impact force acting on the buoyancy plate 6 is large, and the buoyancy plate 6 will be subjected to a large upward swinging thrust, which will in turn generate a large upward thrust on the penetration frame 7. When the water flow rate is slow, the impact force acting on the buoyancy plate 6 is small, and the buoyancy plate 6 will be subjected to a small upward swinging thrust, which will in turn generate a small upward thrust on the penetration frame 7.

[0028] The lifting seat 10 has a rotating arm 15 rotatably connected to one inner wall thereof, and a pressure sensor 13 for contacting the top edge of the penetration frame 7 is fixedly connected to the swing end of the rotating arm 15. The two sides of the rotating arm 15 are fixedly connected with an inclined spring 9 near the middle position and the inner wall of the lifting seat 10. The two inclined springs 9 can ensure that the position of the rotating arm 15 is stable when in use. Then, through the pressure sensor 13 arranged at its end, when the penetration frame 7 is subjected to a large upward thrust, the pressure sensor 13 is subjected to a large pressure. When the penetration frame 7 is subjected to a small upward thrust, the pressure sensor 13 is subjected to a small pressure. Therefore, the pressure sensor 13 can reflect the impact force exerted on the buoyancy plate 6 in real time by judging the readings of the pressure sensors 13 in the detection tubes 1 at both ends of the drainage pipe. When no other branch pipes are connected, when the readings of the pressure sensors 13 on both sides are the same, it indicates that the water flow in the drainage pipe is smooth and there is no blockage. When the readings of the pressure sensors 13 on both sides are significantly different, it indicates that there is a blockage in the drainage pipe, which affects the flow rate of the water.

[0029] In order to prevent the buoyancy board 6 and the through frame 7 from falling freely, an arc strip 8 is provided on the surface of the buoyancy board 6, and the arc strip 8 extends upward and penetrates the bottom surface of the lifting seat 10. Figure 5 and Figure 6As shown, the two ends of the arc-shaped bar 8 extend outward and respectively fit the inner bottom surface of the lifting seat 10 and the bottom surface of the buoyancy plate 6. Therefore, the arc-shaped bar 8 can ensure the initial tilt angle of the buoyancy plate 6, and the arc-shaped bar 8 runs through the buoyancy plate 6, so it will not interfere with the upward swing of the buoyancy plate 6 due to the impact force of the water flow. A limit block 12 for contacting the inner bottom surface of the lifting seat 10 is fixedly connected to the penetration frame 7. The limit block 12 can prevent the penetration frame 7 from continuing to descend, that is, to ensure that the length of the penetration frame 7 outside the lifting seat 10 just fits the upper surface of the buoyancy plate 6 with the initial tilt angle.

[0030] In order to prevent silt and debris from entering the connecting seat 2 when the drainage pipe is cleaned and unblocked: a sealing plate 5 extending into the wall of the detection tube 1 is embedded in the bottom edge of the inner wall of one side of the lifting seat 10, and the outer wall of the detection tube 1 is hollowed out at the sealing plate 5, and the sealing plate 5 extends outward from the side of the connecting seat 2 and is slidably connected to the hollow part of the sealing plate 5. An electric push rod 4 is also fixedly connected between the connecting seat 2 and the extension of the sealing plate 5. When the drainage pipe is blocked and flushed with a water rat, in order to prevent the flushed silt from entering the connecting seat 2, the electric push rod 4 outside the connecting seat 2 is contracted to realize that the sealing plate 5 is moved to seal the bottom of the connecting seat 2, that is, the connecting seat 2 is separated from the drainage pipe, and before separation, the through-frame 7 and the buoyancy plate 6 are lifted and stored in the connecting seat 2.

[0031] In order to ensure that the buoyancy plate 6 does not interfere with the sealing plate 5: the bottom surface of the lifting seat 10 is slidably connected with a rack 16 and a gear 17 that is rotatably connected to the rack 16. One end of the gear 17 is fixedly connected to the lever 14. One end of the lever 14 is cylindrical and extends to the side wall of the rotating arm 15 for sliding connection. Figure 5 As shown, the bottom of the lifting seat 10 is similarly provided with an electric push rod 4 to drive the rack 16 to move, and the rack 16 is used to drive the gear 17 to rotate. The rotation of the gear 17 drives the lever 14 to swing. During the swinging process of the lever 14, it pushes the rotating arm 15 to overcome the elastic force of the oblique tension spring 9 on one side and swing, so that the pressure sensor 13 is misaligned with the top edge of the through-frame 7, ensuring that the through-frame 7 can rise under the push of the buoyancy plate 6:

[0032] In addition, the side of the rack 16 extends upward and is fixedly connected to the special-shaped rod 11. The end of the arc strip 8 located in the lifting seat 10 extends outward in a "7" shape, and the inner corner of the extension of the arc strip 8 is slidably connected to the surface of the special-shaped rod 11. The center of the arc strip 8 is located at the rotation point of the buoyancy plate 6 and the lifting seat 10. The special-shaped rod 11 is composed of a horizontal part and a bent part. During the swinging process of the rack 16 driving the rotating arm 15, the horizontal part of the special-shaped rod 11 is slidably connected to the extension of the arc strip 8 to ensure that the arc strip 8 is under pressure. The sensor 13 will not swing before it is completely misaligned with the through-frame 7. After the pressure sensor 13 is completely misaligned with the through-frame 7, the bent portion of the special-shaped rod 11 contacts the extended portion of the arc strip 8 and pushes the extended portion of the arc strip 8 to slide upward. When the bottom end of the arc strip 8 interferes with the bottom surface of the buoyancy plate 6, the buoyancy plate 6 swings upward. At the same time, under the push of the buoyancy plate 6, the through-frame 7 rises. By contracting the electric push rod 4 on the inspection cover 3, the upward-swinging buoyancy plate 6 and the rising through-frame 7 can be further driven to rise into the connecting seat 2 for storage.

[0033] Working principle: detection tubes 1 are installed at both ends of the drainage pipe, and during the installation process, the inclination direction of the buoyancy plate 6 is ensured to correspond to the direction of water flow. When in use, the electric push rod 4 on the inspection cover 3 is extended to realize the lowering of the lifting seat 10 to a part of the buoyancy plate 6 into the water. Under the impact of the water flow, an upward swinging force is generated on the buoyancy plate 6. Through the conduction of force, the buoyancy plate 6 generates an upward thrust on the through-frame 7, and the through-frame 7 generates a thrust on the pressure sensor 13. The value is read by the pressure sensor 13, and the value at both ends of the drainage pipe is compared to determine whether the drainage pipe is blocked.

[0034] The wiring diagram of the electric push rod 4 and the pressure sensor 13 in the present invention is common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method and wiring arrangement of the electric push rod 4 and the pressure sensor 13 are not explained in detail. The pressure reading of the pressure sensor 13 can be remotely wirelessly transmitted through existing wireless transmission technology.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A device for detecting blockage in an urban drainage system, characterized in that: The invention comprises a detection tube (1), wherein a source connection seat (2) is embedded in the wall of the detection tube (1), the top of the connection seat (2) is hollowed out and is installed with an inspection cover (3), the inner wall of the connection seat (2) is slidably connected to a lifting seat (10), an electric push rod (4) is connected between the corner of the inner bottom surface of the lifting seat (10) and the inspection cover (3), and a through-frame (7) is slidably connected through the inner bottom surface of the lifting seat (10), the bottom edge of the through-frame (7) extends into the detection tube (1), and the outer bottom surface of the lifting seat (10) is rotatably connected to a buoyancy plate (6) in contact with the bottom edge of the through-frame (7), one of the inner side walls of the lifting seat (10) is rotatably connected to a rotating arm (15), and the swing end of the rotating arm (15) is fixedly connected to a pressure sensor (13) for contacting the top edge of the through-frame (7).

2. The urban drainage system blockage detection device according to claim 1, characterized in that: The surface of the buoyancy plate (6) is penetrated by an arc strip (8), one side of the arc strip (8) extends upward and penetrates the bottom surface of the lifting seat (10), and a limit block (12) for contacting the inner bottom surface of the lifting seat (10) is fixedly connected to the penetration frame (7).

3. The urban drainage system blockage detection device according to claim 1, characterized in that: A sealing plate (5) extending into the wall of the detection tube (1) is embedded in the bottom edge of the inner wall of one side of the lifting seat (10); the outer wall of the detection tube (1) is hollowed out at the sealing plate (5); and the side of the sealing plate (5) away from the connecting seat (2) extends outward and is slidably connected to the hollow part of the sealing plate (5); an electric push rod (4) is also fixedly connected between the connecting seat (2) and the extension of the sealing plate (5).

4. The urban drainage system blockage detection device according to claim 1, characterized in that: A canted spring (9) is fixedly connected between the middle position on both sides of the rotating arm (15) and the inner wall of the lifting seat (10).

5. The urban drainage system blockage detection device according to claim 4, characterized in that: The inner bottom surface of the lifting seat (10) is slidably connected with a rack (16) and rotatably connected with a gear (17) meshing with the rack (16); one end of the gear (17) is fixedly connected to a shifting rod (14); one end of the shifting rod (14) is cylindrical and extends to be slidably connected to the side wall of the rotating arm (15).

6. The urban drainage system blockage detection device according to claim 5, characterized in that: The side of the rack (16) extends upward and is fixedly connected to the special-shaped rod (11). The end of the arc-shaped bar (8) located in the lifting seat (10) extends outward in a "7" shape, and the inner corner of the extended portion of the arc-shaped bar (8) is slidably connected to the surface of the special-shaped rod (11).

7. The urban drainage system blockage detection device according to claim 6, characterized in that: The center of the arc strip (8) is located at the rotation point of the buoyancy plate (6) and the lifting seat (10).

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