Underdrain flow measuring device

By adopting an adjusting arm, telescopic plate, and slot structure in the culvert flow measurement device, the problem of unstable installation of existing devices has been solved, enabling stable installation on the inner walls of culverts of different shapes, simplifying maintenance and repair, and improving the adaptability and stability of the device.

CN224933508UActive Publication Date: 2026-11-03济南市水利工程服务中心 +1
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Patent Information

Application Number
CN202521965757.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-12
Publication Date
2026-11-03
Estimated Expiration
2035-09-12

AI Technical Summary

Technical Problem

Existing flow measurement devices are difficult to install securely on the inner wall of culverts, making maintenance and repair work difficult.

Method used

A flow measurement device for underground channels was designed, which adopts an adjusting arm, telescopic plate and slot structure. A stable connection is achieved by the matching of the plug and the slot, and the stability and flexibility are enhanced by the use of rubber material and spring.

Benefits of technology

It enables stable installation on the inner walls of culverts of different shapes, simplifies maintenance and repair work, and improves the adaptability and stability of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to flow measurement technical field, and disclose the culvert flow measuring device, including measuring device body, both sides of measuring device body all are fixedly connected with the adjusting arm, the bottom installation of measuring device body has the measuring mechanism, the inside of adjusting arm is provided with the contraction groove, the inside sliding connection of contraction groove has the expansion plate, the side fixed connection of expansion plate away from adjusting arm has the straight groove, the bottom of expansion plate is provided with the straight groove, both ends in the straight groove are provided with a plurality of insertion slots. The culvert flow measuring device, the staff pushes the adjusting block to the inside of adjusting groove, drives the plug -in block to remove the spacing between the insertion slot and drives the plug -in block to remove the spacing between the insertion slot in the process of adjusting block movement, and the staff adjusts the position of expansion plate according to the width of pipeline or ditch, makes the straight groove adhere to the inner wall of pipeline or ditch, so as to reach the effect of stable measurement.
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Description

Technical Field

[0001] This utility model relates to the field of flow measurement technology, and in particular to a flow measurement device for underground channels. Background Technology

[0002] In many fields such as water conservancy, municipal drainage, and industrial wastewater treatment, culverts serve as important water transport channels. The accurate measurement of their flow data plays an irreplaceable and crucial role in the rational allocation of water resources, flood control and drainage planning, sewage discharge monitoring, and production process control.

[0003] The structure of culverts is diverse, including circular pipes, rectangular trenches, and various irregularly shaped culverts. Existing flow measurement devices are often not designed with full consideration of the complex space and shape characteristics of the inner wall of the culvert, resulting in equipment that is too large or irregular in shape and cannot meet the installation requirements of different culverts. For example, some large flow measurement devices cannot be installed smoothly in circular pipes due to diameter limitations. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantage of being difficult to install securely and reasonably on the inner wall of the culvert, which leads to many difficulties in the later maintenance and repair work. Therefore, we propose a culvert flow measurement device.

[0005] To achieve the above objectives, this application adopts the following technical solution: a culvert flow measurement device, comprising a measuring device body, with adjusting arms fixedly connected to both sides of the measuring device body, a measuring mechanism installed at the bottom of the measuring device body, a contraction groove inside the adjusting arm, a telescopic plate slidably connected inside the contraction groove, a fitting plate fixedly connected to the side of the telescopic plate away from the adjusting arm, a straight groove at the bottom end of the telescopic plate, several slots at both ends of the straight groove, an adjusting box fixedly connected to the bottom of the adjusting arm, adjusting grooves at both ends of the adjusting box, an adjusting block slidably connected inside the adjusting groove, a through groove at the top end of the adjusting groove, and an insert fixedly connected to the top end of the adjusting block.

[0006] Preferably, the size of the slot is adapted to the size of the plug, and the surface of the slot is inserted into the interior of the plug.

[0007] Preferably, the bonding plate is made of rubber, and the side of the bonding plate away from the telescopic plate is provided with anti-slip texture.

[0008] Preferably, a storage spring is fixedly connected to the side of the adjusting block near the inside of the adjusting groove, and the side of the storage spring away from the adjusting block is fixedly connected to the inside of the adjusting groove.

[0009] Preferably, sliding grooves are provided on both sides of the adjustment groove, and sliders are fixedly connected to both sides of the adjustment block, with the surface of the sliders slidingly connected to the inside of the sliding groove.

[0010] Preferably, a return spring is fixedly connected to the side of the telescopic plate near the inside of the shrinkage groove, and the side of the return spring away from the telescopic plate is fixedly connected to the inside of the shrinkage groove.

[0011] Preferably, guide grooves are provided on both sides of the inside of the shrinkage groove, and guide blocks are fixedly connected to both ends of the telescopic plate, with the surface of the guide block slidingly connected to the inside of the guide groove.

[0012] The technical effects and advantages of this utility model are as follows: In this invention, the operator pushes the adjusting block into the adjusting groove. As the adjusting block moves, it simultaneously moves the insert block and releases the limiting position between the insert block and the slot. The operator adjusts the position of the telescopic plate according to the width of the pipe or ditch, so that the straight groove fits the inner wall of the pipe or ditch to achieve a stable measurement. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a partial cross-sectional view of the present invention. Figure 3 This is a partial cross-sectional view of the adjustment box of this utility model; Figure 4 This is a schematic diagram of the internal structure of the shrinkage groove of this utility model; Figure 5 This is a schematic diagram of the internal structure of the adjustment groove of this utility model.

[0014] Legend: 1. Measuring device body; 2. Adjusting arm; 3. Measuring mechanism; 4. Shrinkage groove; 5. Telescopic plate; 6. Straight groove; 7. Slot; 8. Adjusting box; 9. Adjusting groove; 10. Adjusting block; 11. Through groove; 12. Insert block; 13. Storage spring; 14. Slide groove; 15. Sliding block; 16. Return spring; 17. Guide groove; 18. Guide block; 19. Adhesive plate. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0016] Reference Figures 1-5As shown, this utility model provides a technical solution: a culvert flow measurement device, including a measuring device body 1, with adjusting arms 2 fixedly connected to both sides of the measuring device body 1, a measuring mechanism 3 installed at the bottom of the measuring device body 1, a contraction groove 4 opened inside the adjusting arm 2, a telescopic plate 5 slidably connected inside the contraction groove 4, a bonding plate 19 fixedly connected to the side of the telescopic plate 5 away from the adjusting arm 2, a straight groove 6 opened at the bottom end of the telescopic plate 5, and several slots 7 opened at both ends inside the straight groove 6, and an adjusting box 8 fixedly connected to the bottom of the adjusting arm 2. Both ends of the device are provided with adjustment grooves 9. An adjustment block 10 is slidably connected inside the adjustment groove 9. A through groove 11 is provided at the top of the adjustment groove 9. An insert block 12 is fixedly connected to the top of the adjustment block 10. When the operator pushes the adjustment block 10 into the adjustment groove 9, the insert block 12 moves simultaneously as the adjustment block 10 moves, and the insert block 12 is released from the limit between itself and the slot 7. The operator adjusts the position of the telescopic plate 5 according to the width of the pipe or ditch, so that the straight groove 6 fits the inner wall of the pipe or ditch, so as to achieve a stable measurement function.

[0017] Reference Figure 4 and Figure 5 As shown in this embodiment: the size of the slot 7 is adapted to the size of the plug 12, and the surface of the slot 7 is inserted into the interior of the plug 12. By adapting the size of the slot 7 to the size of the plug 12, the plug 12 can be stably inserted into the slot 7, thereby achieving a stable connection between the telescopic plate 5 and the adjusting block 10.

[0018] Reference Figure 4 As shown in this embodiment: the bonding plate 19 is made of rubber, and the side of the bonding plate 19 away from the telescopic plate 5 is provided with anti-slip texture. By making the bonding plate 19 of rubber material, the friction between the bonding plate 19 and the contact surface can be increased, preventing slippage and improving stability. At the same time, the rubber material has good elasticity and wear resistance, which can extend the service life of the bonding plate 19. The anti-slip texture further enhances the anti-slip effect of the bonding plate 19, so that the bonding plate 19 can remain stable and not easily slip in various environments.

[0019] Reference Figure 5As shown in this embodiment: a storage spring 13 is fixedly connected to the side of the adjusting block 10 near the inside of the adjusting groove 9, and the side of the storage spring 13 away from the adjusting block 10 is fixedly connected to the inside of the adjusting groove 9. When the operator pushes the adjusting block 10 into the adjusting groove 9, the adjusting block 10 compresses the storage spring 13 to store force, and drives the insert block 12 to release the limit between itself and the slot 7. After the operator adjusts the applicable position of the telescopic plate 5, the insert block 12 is aligned with the slot 7 and the adjusting block 10 is released. Under the action of the rebound force of the storage spring 13, the insert block 12 quickly snaps into the inside of the slot 7 to achieve limit fixation. Through the above setting, it is not only convenient for the operator to adjust the position of the telescopic plate 5, but also the stability after adjustment is improved.

[0020] Reference Figure 5 As shown in this embodiment: sliding grooves 14 are provided on both sides of the adjustment groove 9, and sliders 15 are fixedly connected to both sides of the adjustment block 10. The surface of the slider 15 is slidably connected to the inside of the sliding groove 14. When the operator moves the adjustment block 10, the adjustment block 10 drives the slider 15 to slide inside the sliding groove 14. Through the above settings, not only is the movement of the adjustment block 10 smoother, but the range of movement of the adjustment block 10 is also effectively limited to prevent it from excessively deviating or falling off, thereby ensuring the stability and reliability of the overall structure.

[0021] Reference Figure 5 As shown in this embodiment: a return spring 16 is fixedly connected to the side of the telescopic plate 5 near the inside of the contraction groove 4, and the side of the return spring 16 away from the telescopic plate 5 is fixedly connected to the inside of the contraction groove 4 to prevent the telescopic plate 5 from shifting during use, thereby ensuring the stability and reliability of the overall structure. When the operator pushes the telescopic plate 5 into the inside of the contraction groove 4, the telescopic plate 5 compresses the return spring 16 to store force. When the operator needs to install the measuring device body 1, the limit of the telescopic plate 5 is released, and the telescopic plate 5 is quickly pushed under the action of the return spring 16, and the straight groove 6 is driven to fit against the inner wall of the ditch or pipe.

[0022] Reference Figure 4 As shown in this embodiment: guide grooves 17 are provided on both sides inside the shrinkage groove 4, and guide blocks 18 are fixedly connected to both ends of the telescopic plate 5. The surface of the guide block 18 is slidably connected to the inside of the guide groove 17. When the operator moves the adjusting block 10, the adjusting block 10 drives the guide block 18 to slide inside the guide groove 17. Through the above settings, not only is the movement of the adjusting block 10 more stable and smooth, but the connection strength between the telescopic plate 5 and the shrinkage groove 4 is also effectively enhanced to adapt to different working environments and needs, further improving the overall practicality and flexibility.

[0023] Working principle: By pushing the adjusting block 10 into the adjusting groove 9, the operator simultaneously moves the insert block 12, releasing it from its limiting position with the slot 7. The operator adjusts the position of the telescopic plate 5 according to the width of the pipe or trench, ensuring the straight groove 6 fits snugly against the inner wall of the pipe or trench for stable measurement. The matching size of the slot 7 and the insert block 12 allows the insert block 12 to be stably inserted into the slot 7, achieving a secure connection between the telescopic plate 5 and the adjusting block 10. The rubber material of the straight groove 6 increases the friction between the straight groove 6 and the contact surface. To prevent slippage and improve stability, the rubber material has good elasticity and wear resistance, which can extend the service life of the straight groove 6. The anti-slip texture further enhances the anti-slip effect of the straight groove 6, making it stable and not easy to slip in various environments. When the operator pushes the telescopic plate 5 into the shrinkage groove 4, the telescopic plate 5 compresses the return spring 16 to store force. When the operator needs to install the measuring device body 1, the limit of the telescopic plate 5 is released, and the telescopic plate 5 is quickly pushed under the action of the return spring 16, which drives the straight groove 6 to fit against the inner wall of the ditch or pipe. When the operator moves the adjusting block 10, Adjusting block 10 drives slider 15 to slide inside slide groove 14. This design not only makes the movement of adjusting block 10 smoother but also effectively limits its range of motion, preventing excessive offset or detachment, thus ensuring the stability and reliability of the overall structure. When the operator pushes adjusting block 10 into the adjusting groove 9, adjusting block 10 compresses and stores force on the storage spring 13, causing insert block 12 to release its limit from the slot 7. After the operator adjusts the telescopic plate 5 to the appropriate position, insert block 12 is aligned with slot 7 and adjusting block 10 is released. Under the rebound force of storage spring 13, insert block 12 quickly engages. Inside slot 7, a limiting and fixing mechanism is implemented. This not only facilitates the adjustment of the position of telescopic plate 5 by the operator, but also improves the stability after adjustment, preventing displacement of telescopic plate 5 during use, thereby ensuring the stability and reliability of the overall structure. When the operator moves the adjusting block 10, the adjusting block 10 drives the guide block 18 to slide inside the guide groove 17. This design not only makes the movement of the adjusting block 10 more stable and smooth, but also effectively enhances the connection strength between the telescopic plate 5 and the shrinkage groove 4, adapting to different working environments and needs, and further improving the overall practicality and flexibility.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flow measurement device for a culvert, comprising a measuring device body (1), characterized in that: Adjusting arms (2) are fixedly connected to both sides of the measuring device body (1). A measuring mechanism (3) is installed at the bottom of the measuring device body (1). A shrinkage groove (4) is opened inside the adjusting arm (2). A telescopic plate (5) is slidably connected inside the shrinkage groove (4). A fitting plate (19) is fixedly connected to the side of the telescopic plate (5) away from the adjusting arm (2). A straight groove (6) is opened at the bottom end of the telescopic plate (5). Several slots (7) are opened at both ends inside the straight groove (6). An adjusting box (8) is fixedly connected to the bottom of the adjusting arm (2). An adjusting groove (9) is opened at both ends of the adjusting box (8). An adjusting block (10) is slidably connected inside the adjusting groove (9). A through groove (11) is opened at the top end inside the adjusting groove (9). An insert block (12) is fixedly connected to the top end of the adjusting block (10).

2. The culvert flow measurement device according to claim 1, characterized in that: The size of the slot (7) is adapted to the size of the plug (12), and the surface of the slot (7) is inserted into the interior of the plug (12).

3. The culvert flow measurement device according to claim 1, characterized in that: The bonding plate (19) is made of rubber, and the side of the bonding plate (19) away from the telescopic plate (5) is provided with anti-slip texture.

4. The culvert flow measurement device according to claim 1, characterized in that: A storage spring (13) is fixedly connected to the side of the adjusting block (10) near the inside of the adjusting groove (9), and the side of the storage spring (13) away from the adjusting block (10) is fixedly connected to the inside of the adjusting groove (9).

5. The culvert flow measurement device according to claim 1, characterized in that: The adjustment groove (9) has sliding grooves (14) on both sides, and the adjustment block (10) has sliders (15) fixedly connected to both sides. The surface of the slider (15) is slidably connected to the inside of the sliding groove (14).

6. The culvert flow measurement device according to claim 1, characterized in that: A return spring (16) is fixedly connected to the side of the telescopic plate (5) near the inside of the shrinkage groove (4), and the side of the return spring (16) away from the telescopic plate (5) is fixedly connected to the inside of the shrinkage groove (4).

7. The culvert flow measurement device according to claim 1, characterized in that: The shrinkage groove (4) has guide grooves (17) on both sides inside, and guide blocks (18) are fixedly connected to both ends of the telescopic plate (5). The surface of the guide block (18) is slidably connected to the inside of the guide groove (17).