Underground drainage pipe drainage flow velocity detection device
By designing a flexible and adjustable radar flow meter device, the problem of floating objects interfering with water flow velocity measurement was solved, enabling accurate detection of water flow velocity in underground drainage pipes and stable operation of the device.
Patent Information
- Application Number
- CN202520528974.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-25
AI Technical Summary
When existing radar flow meters detect the flow velocity of water in underground drainage pipes, floating objects interfere with the reflection of radar waves, resulting in inaccurate and unstable measurement results.
A device was designed that includes a radar flow meter, a probe, a protective cover, a connecting frame, a telescopic tube, a base tube, an angle adjustment rod, and a waste diversion plate. The adjustment mechanism ensures that the radar flow meter is aligned with the water flow and effectively diverts floating debris, thereby improving detection accuracy.
It enables accurate detection of water flow velocity in underground drainage pipes, avoids the influence of floating objects on the measurement, improves detection efficiency and device stability, and prevents equipment damage.
Smart Images

Figure CN223897471U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flow velocity detection technology, and in particular to a device for detecting the flow velocity of underground drainage pipes. Background Technology
[0002] A radar flow meter is an advanced non-contact measuring device. It measures water flow velocity by emitting radar waves and receiving the reflected signals, utilizing the Doppler effect. This device boasts advantages such as high accuracy, real-time performance, and insensitivity to water quality, accurately reflecting the water flow conditions within drainage pipes. Furthermore, radar flow meters are easy to install, have low maintenance costs, and are suitable for monitoring drainage flow velocity in various complex environments, providing strong technical support for the management and maintenance of urban drainage systems.
[0003] In underground drainage pipe flow velocity detection, there are indeed some drawbacks when using radar flow meters placed on the water surface for velocity measurement, especially the influence of floating debris on the flow surface on the velocity detection results. Specifically:
[0004] Radar flow meters operate on the principle of the Doppler frequency shift effect during radar wave transmission and reception, calculating water flow velocity by measuring the frequency change of the reflected radar waves. However, when floating debris, such as leaves, garbage, or other impurities, is present on the water surface, it interferes with the reflection of radar waves. This debris can alter the reflection path of the radar waves, causing the reflected signal to weaken or scatter, thus affecting the accuracy of the radar flow meter's measurement of water flow velocity.
[0005] The presence of floating debris can also cause fluctuations in radar wave reflection signals, increasing the complexity of data processing. These fluctuations may lead to decreased stability of measurement results, affecting the reliability and accuracy of flow velocity data. Utility Model Content
[0006] The main objective of this invention is to provide a device for detecting the flow velocity of underground drainage pipes, which can effectively solve the problems mentioned in the background art.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0008] A device for detecting the flow velocity of underground drainage pipes includes a radar flow meter and a probe head. The probe head is located at the lower end of the radar flow meter, and the flow velocity of water in the underground drainage pipes is detected through the probe head.
[0009] A protective cover is installed on one side of the radar flow meter, and a connecting frame is installed on the other side of the radar flow meter. The connecting frame is connected to a telescopic pipe through a connecting seat, and a base pipe is connected to the rear end of the telescopic pipe. An mounting seat is installed at the tail end of the base pipe, and the radar flow meter is installed on the wall of the underground drainage pipe through the mounting seat. The position of the radar flow meter in the underground drainage pipe is adjusted by the telescopic pipe and the base pipe.
[0010] The side wall of the connecting frame is provided with an insertion hole, into which an insertion rod is inserted. A first angle adjustment rod is connected to the insertion rod via a sliding groove and a fastener. The lower end of the first angle adjustment rod is connected to a waste diversion plate via a second angle adjustment rod.
[0011] In a further preferred embodiment, the cross-section of the connecting frame is U-shaped, and the connecting frame and the connecting seat are connected by threads. Rotating the connecting seat allows for adjustment of the radar flow meter angle, and the connecting seat and the telescopic pipe are fixed by bolts.
[0012] In a further preferred embodiment, the side wall of the telescopic tube is provided with a pin hole, the telescopic tube is threadedly connected to the base tube, the base tube and the mounting base are designed as an integral part, the end face of the mounting base is provided with multiple mounting holes, and the end face of the mounting base is connected with an anti-slip pad by an adhesive.
[0013] In a further preferred embodiment, the insertion rod is fixed to the connecting frame by a nut and an anti-slip washer, and an anti-slip rubber sleeve is attached to the surface of the insertion rod by an adhesive. The groove is a through groove with an arc-shaped edge.
[0014] In a further preferred embodiment, the fastener includes a fastening nut, a fastening bolt, and an anti-slip washer. The fastening bolt passes through the first angle adjusting rod and the slide groove, and the fastening nut and the anti-slip washer are fitted to connect the first angle adjusting rod and the insert rod.
[0015] In a further preferred embodiment, the first angle adjustment rod is adjusted by a fastener, the first angle adjustment rod and the second angle adjustment rod are connected by another fastener, and the second angle adjustment rod is adjusted by a fastener.
[0016] In a further preferred embodiment, the second angle adjustment rod is integrated with the waste diversion plate, and the waste diversion plate has a plowshare design.
[0017] In a further preferred embodiment, the position of the waste diversion plate is adjusted by a telescopic tube and a base tube, and the tilt angle of the waste diversion plate is adjusted by a first angle adjustment rod and a second angle adjustment rod.
[0018] Compared with the prior art, the present invention has the following beneficial effects:
[0019] By adjusting the design of the mechanism, including the coordinated use of the telescopic pipe, base pipe, connecting frame, first angle adjustment rod, and second angle adjustment rod, flexible adjustment of the radar flow meter and waste diversion plate in the underground drainage pipe is achieved. This flexibility not only ensures that the radar flow meter can accurately target the water flow for velocity detection, but also allows the position and angle of the waste diversion plate to be adjusted according to different drainage pipe environments to achieve the best diversion effect.
[0020] The plowshare-shaped waste diversion plate effectively separates waste from the water flow, preventing floating debris from passing through the probe at the bottom of the radar flow meter, thus ensuring the accuracy of water flow velocity detection. This not only improves detection efficiency but also avoids equipment damage or detection errors caused by waste blockage.
[0021] The entire device is designed with stability and reliability in mind. The use of bolts, fasteners, anti-slip pads, and anti-slip rubber sleeves ensures that all parts of the device are securely connected and not easily loosened. Furthermore, the integrated design of the mounting base and base pipe, along with the use of anti-slip pads, further enhances the device's stability. This stability and reliability guarantee that the device can operate stably for extended periods in harsh underground drainage pipe environments, providing strong support for accurate water flow velocity detection. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is a diagram showing the overall structure of the present invention;
[0024] Figure 3 This is a side view of the overall structure of this utility model;
[0025] Figure 4 The diagram shows the radar flow meter, protective cover, and connecting frame of this utility model.
[0026] Figure 5 for Figure 1 Enlarged diagram of point A in the middle.
[0027] In the diagram: 1. Base pipe; 2. Telescopic pipe; 3. Mounting base; 4. Connecting base; 5. Connecting frame; 6. Radar flow meter; 7. Detector head; 8. Protective cover; 9. Insert rod; 10. First angle adjustment rod; 11. Second angle adjustment rod; 12. Waste diversion plate; 13. Insertion hole; 14. Slide groove; 15. Fastener. Detailed Implementation
[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0029] like Figure 1 - Figure 5 As shown, a drainage flow velocity detection device for underground drainage pipes mainly consists of a radar flow meter 6 and a probe 7. The probe 7 is located at the lower end of the radar flow meter 6, and can be used to accurately detect the flow velocity of water in underground drainage pipes.
[0030] To protect the radar flow meter 6, a protective cover 8 is installed on one side. A connecting frame 5 is installed on the other side, which is connected to the telescopic pipe 2 via a connecting seat 4. The rear end of the telescopic pipe 2 is connected to the base pipe 1, and a mounting seat 3 is installed at the tail end of the base pipe 1. Through the mounting seat 3, the entire device can be fixedly installed on the wall of the underground drainage pipe. The combined use of the telescopic pipe 2 and the base pipe 1 allows for flexible adjustment of the position of the radar flow meter 6 within the underground drainage pipe.
[0031] A socket 13 is provided on the side wall of the connecting frame 5, and a rod 9 is inserted into the socket 13. A first angle adjustment rod 10 is connected to the rod 9 via a sliding groove 14 and a fastener 15. The lower end of the first angle adjustment rod 10 is connected to a garbage diversion plate 12 via a second angle adjustment rod 11, thereby realizing the diversion of garbage and preventing floating objects from passing through the detector head 7 at the lower end of the radar flow meter 6, effectively realizing the detection of water flow velocity.
[0032] The connecting bracket 5 has a U-shaped cross-section, facilitating a threaded connection with the connecting seat 4. The angle of the radar flow meter 6 can be easily adjusted by rotating the connecting seat 4. The connecting seat 4 is fixed to the telescopic pipe 2 with bolts, ensuring the stability and reliability of the device.
[0033] The telescopic tube 2 has pin holes on its side wall and is connected to the base tube 1 via a threaded connection. The base tube 1 and the mounting base 3 are designed as an integrated structure. The end face of the mounting base 3 has multiple mounting holes for easy installation and fixation. Anti-slip pads are attached to the end face of the mounting base 3 with adhesive to enhance the stability of the device.
[0034] The insertion rod 9 is fixed to the connecting bracket 5 by a nut and an anti-slip washer. The surface of the insertion rod 9 is covered with an anti-slip rubber sleeve by adhesive to provide a better grip and anti-slip effect. The slide groove 14 is designed as a through groove with an arc-shaped edge to facilitate the sliding and positioning of the insertion rod 9.
[0035] Fastener 15 includes a fastening nut, a fastening bolt, and an anti-slip washer. The fastening bolt passes through the first angle adjusting rod 10 and the sliding groove 14, and is fitted with the fastening nut and the anti-slip washer, thereby achieving a secure connection between the first angle adjusting rod 10 and the insert rod 9. The angle of the first angle adjusting rod 10 can be easily adjusted using fastener 15.
[0036] The first angle adjusting rod 10 adjusts its angle via a fastener 15, and the first angle adjusting rod 10 and the second angle adjusting rod 11 are connected via another fastener 15. The second angle adjusting rod 11 adjusts its angle via a fastener 15, ensuring the flexibility and adaptability of the device.
[0037] The second angle adjustment rod 11 and the waste diversion plate 12 are designed as an integrated structure. The waste diversion plate 12 has a plowshare design, which can effectively divert waste from the water flow. By adjusting the telescopic pipe 2 and the base pipe 1, the position of the waste diversion plate 12 can be changed to adapt to different drainage pipe environments.
[0038] The waste diversion plate 12 is positioned via the telescopic tube 2 and the base tube 1, and its tilt angle is adjusted via the first angle adjustment rod 10 and the second angle adjustment rod 11. This allows for precise angle adjustment of the waste diversion plate 12 according to actual needs, achieving the best diversion effect.
[0039] Align the end face of mounting base 3 with the wall of the underground drainage pipe. Secure the base pipe 1 to mounting base 3 with bolts to ensure device stability. Attach anti-slip pads to the end face of mounting base 3 with adhesive to enhance device stability. Adjust the angle of radar flow meter 6 by rotating connecting base 4 to ensure it is aligned with the water flow in the underground drainage pipe. Connect telescopic pipe 2 to base pipe 1 with bolts to ensure device stability. A pin hole is provided on the side wall of telescopic pipe 2, which is connected to base pipe 1 via a threaded connection for easy position adjustment. Position probe 7 at the lower end of radar flow meter 6. Ensure probe 7 can accurately detect the flow velocity of water in the underground drainage pipe.
[0040] A protective cover 8 is installed on one side of the radar flow meter 6 to protect the equipment. A connecting bracket 5 is installed on the other side and connected to the telescopic pipe 2 via a connecting seat 4. The insertion rod 9 is inserted into the insertion hole 13 of the connecting bracket 5 and secured with a nut and anti-slip washer. A first angle adjusting rod 10 is connected to the insertion rod 9 via a sliding groove 14 and a fastener 15. The lower end of the first angle adjusting rod 10 is connected to the waste diversion plate 12 via a second angle adjusting rod 11. The angles of the first angle adjusting rod 10 and the second angle adjusting rod 11 are adjusted using the fastener 15 to ensure that the waste diversion plate 12 can effectively divert waste. The position of the waste diversion plate 12 is changed by adjusting the telescopic pipe 2 and the base pipe 1 to adapt to different drainage pipe environments. The tilt angle of the waste diversion plate 12 is adjusted using the fastener 15 to achieve the best diversion effect.
[0041] Turn on the radar flow meter 6 to accurately detect the water flow velocity in the underground drainage pipe. Adjust the position and angle of the probe head 7 and the waste diversion plate 12 as needed to ensure the accuracy of the detection results. Regularly inspect all components of the device to ensure they are working properly. Clean the probe head 7 and the radar flow meter 6 to prevent dirt from affecting the detection accuracy.
[0042] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A device for detecting the flow velocity of underground drainage pipes, comprising a radar flow meter (6) and a probe (7), wherein the probe (7) is located at the lower end of the radar flow meter (6), and the flow velocity of water in the underground drainage pipe is detected by the probe (7), characterized in that: A protective cover (8) is installed on one side of the radar flow meter (6), and a connecting frame (5) is installed on the other side of the radar flow meter (6). The connecting frame (5) is connected to a telescopic pipe (2) through a connecting seat (4), and a base pipe (1) is connected to the rear end of the telescopic pipe (2). A mounting seat (3) is installed at the tail end of the base pipe (1), and the base pipe (1) is installed on the wall of the underground drainage pipe through the mounting seat (3). The position of the radar flow meter (6) in the underground drainage pipe is adjusted by the telescopic pipe (2) and the base pipe (1). The side wall of the connecting frame (5) is provided with a socket (13), and a plug rod (9) is inserted into the socket (13). A first angle adjustment rod (10) is connected to the plug rod (9) through a slide groove (14) and a fastener (15). The lower end of the first angle adjustment rod (10) is connected to a waste diversion plate (12) through a second angle adjustment rod (11).
2. The underground drainage pipe flow velocity detection device according to claim 1, characterized in that: The cross-section of the connecting frame (5) is U-shaped, and the connecting frame (5) and the connecting seat (4) are connected by threads. Rotating the connecting seat (4) allows for adjustment of the angle of the radar flow meter (6). The connecting seat (4) and the telescopic tube (2) are fixed by bolts.
3. The underground drainage pipe flow velocity detection device according to claim 2, characterized in that: The telescopic tube (2) has a pin hole on its side wall. The telescopic tube (2) is threaded to the base tube (1). The base tube (1) is integrated with the mounting base (3). The mounting base (3) has multiple mounting holes on its end face. The mounting base (3) has an anti-slip pad connected to its end face by an adhesive.
4. The underground drainage pipe flow velocity detection device according to claim 3, characterized in that: The insertion rod (9) is fixed to the connecting frame (5) by nuts and anti-slip washers. The surface of the insertion rod (9) is connected with an anti-slip rubber sleeve by adhesive. The groove (14) is a through groove with an arc-shaped edge.
5. The underground drainage pipe flow velocity detection device according to claim 4, characterized in that: The fastener (15) includes a fastening nut, a fastening bolt and an anti-slip washer. The fastening bolt passes through the first angle adjustment rod (10) and the slide groove (14), and the fastening nut and the anti-slip washer are fitted to connect the first angle adjustment rod (10) and the insert rod (9).
6. The drainage flow velocity detection device for underground drainage pipes according to claim 5, characterized in that: The first angle adjustment rod (10) is adjusted by fastener (15). The first angle adjustment rod (10) and the second angle adjustment rod (11) are connected by another fastener (15). The second angle adjustment rod (11) is adjusted by fastener (15).
7. The drainage flow velocity detection device for underground drainage pipes according to claim 6, characterized in that: The second angle adjustment rod (11) is integrated with the waste diversion plate (12), which is designed in the shape of a plowshare.
8. The underground drainage pipe flow velocity detection device according to claim 7, characterized in that: The position of the waste diversion plate (12) is adjusted by the telescopic pipe (2) and the base pipe (1), and the tilt angle of the waste diversion plate (12) is adjusted by the first angle adjustment rod (10) and the second angle adjustment rod (11).