Anti-floating object counterweight flow velocity sensor
By introducing a counterweight ring and a conical baffle structure into the flow velocity sensor, the problem of the sensor being blocked by floating objects during its descent was solved, resulting in higher accuracy flow velocity measurement and a longer equipment lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 史小芹
- Filing Date
- 2025-07-17
- Publication Date
- 2026-05-12
AI Technical Summary
Existing flow velocity sensors are easily blocked by buoyancy or debris such as algae during the sinking process in water, resulting in inaccurate measurement results.
An anti-floating object counterweight flow velocity sensor was designed, including a sleeve, a counterweight ring, a conical baffle frame, and a conical head. The weight of the counterweight ring causes the sensor to sink rapidly, the conical head pushes away floating objects on the water surface, and the conical baffle frame blocks floating objects, ensuring that the sensor can successfully submerge in the water. The stainless steel material also improves the lifespan of the device.
It improves the accuracy of flow velocity measurement and the service life of the equipment, simplifies the sensor replacement and cleaning process, and reduces the interference of floating objects on the measurement.
Smart Images

Figure CN224231791U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water conservancy engineering technology, specifically to an anti-floating object counterweight flow velocity sensor. Background Technology
[0002] In the field of water conservancy engineering, counterweight flow velocity sensors are usually used to monitor the flow velocity of water below the water surface. First, the water surface needs to be divided into several sections, and counterweight flow velocity sensors are placed in each section. Then, the flow velocities measured in each section are statistically analyzed, and the average flow velocity of the entire water surface is calculated.
[0003] Most flow velocity sensors are manually thrown into the water. However, buoyancy or debris such as algae in the water often prevents the flow velocity sensor from sinking, causing it to float on the surface and making it difficult to effectively submerge. Therefore, an anti-floating object counterweight flow velocity sensor is proposed to facilitate the setting of a counterweight frame that can block algae and other debris, allowing the flow velocity sensor to sink smoothly into the water and improving the accuracy of the measurement results. Utility Model Content
[0004] To address the problems in the existing technology, this utility model provides an anti-floating object counterweight flow velocity sensor, which facilitates the setting of a counterweight baffle frame that can block algae and other debris, allowing the flow velocity sensor to sink smoothly into the water and improving the accuracy of the measurement results.
[0005] The technical solution adopted by this utility model to solve its technical problem is an anti-floating object counterweight flow velocity sensor, including a sleeve A and a fixing ring. The top of the sleeve A is provided with a top cover, and the bottom of the sleeve A is provided with a sleeve B. The bottom of the sleeve B is welded with a counterweight ring, and the bottom of the counterweight ring is provided with a conical baffle frame, and the bottom of the conical baffle frame is welded with a conical head.
[0006] The flow velocity sensor body is penetrated through both sleeve A and sleeve B. The bottom of the flow velocity sensor body is provided with a support column, and the bottom of the support column is provided with a sensor probe.
[0007] Specifically, a hook is welded to the center of the top of the cover, and a rope is fastened between the hooks.
[0008] Specifically, a threaded connecting pipe is welded to the bottom of the sleeve A, and a threaded connecting groove is opened on the top of the sleeve B, and the threaded connecting pipe is threadedly connected to the threaded connecting groove.
[0009] Specifically, the sleeve B has an inner tube wall, and L-shaped grooves are opened on both sides of the inner tube wall. The sleeve B is interconnected with the counterweight ring, the fixing ring and the conical stop frame. A bolt is tightened through the reserved hole at the top of the counterweight ring and is threadedly connected to the reserved hole at the top of the fixing ring.
[0010] Specifically, an anti-slip ring that fits into the inner tube wall is sleeved on the middle section of the outer periphery of the support column, and a locking block is welded to the bottom of the anti-slip ring on both sides of the support column, and the locking block engages with the L-shaped locking groove.
[0011] Specifically, the input end of the flow velocity sensor body and the output end of the sensor probe are electrically connected by wires.
[0012] The beneficial effects of this utility model are:
[0013] (1) The anti-floating object counterweight flow velocity sensor of this utility model can ensure that the flow velocity sensor body quickly submerges into the water due to the weight of the counterweight ring, the conical baffle and the conical head. The sharp structure of the conical baffle and the conical head can contact the water surface first and push away the floating objects on the water surface, effectively preventing the floating objects from hindering the submersion of the flow velocity sensor body and increasing the probability of the flow velocity sensor body floating up, thereby improving the accuracy of the measurement results.
[0014] (2) The anti-floating object counterweight flow velocity sensor of this utility model can be reclaimed. After the flow velocity sensor body is recovered, the sleeve A and the sleeve B can be disassembled to facilitate the replacement or maintenance of the flow velocity sensor body. The floating objects adhering to the surface of the conical baffle are also easy to clean, saving time and effort. Moreover, the device is made of stainless steel, which has the advantages of being waterproof and rustproof, thus improving the service life of the device. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0016] Figure 1 This is a schematic diagram of the overall design of this utility model;
[0017] Figure 2 This is a schematic diagram of sleeve B of this utility model;
[0018] Figure 3 This is a schematic diagram of the flow velocity sensor body of this utility model;
[0019] In the diagram: 1. Sleeve A; 2. Top cover; 3. Lifting ring; 4. Lifting rope; 5. Threaded connecting pipe; 6. Sleeve B; 7. Threaded connecting groove; 8. Inner pipe wall; 9. L-shaped groove; 10. Counterweight ring; 11. Tightening bolt; 12. Fixing ring; 13. Conical baffle; 14. Conical head; 15. Flow sensor body; 16. Support column; 17. Anti-slip ring; 18. Clamping block; 19. Sensor probe. Detailed Implementation
[0020] 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.
[0021] To facilitate the installation of a counterweighted baffle that can block algae and other debris, allowing the flow velocity sensor to submerge smoothly in the water and improve the accuracy of the measurement results, such as... Figure 1-3 As shown, the anti-floating object counterweight flow velocity sensor of this utility model includes a sleeve A1 and a fixing ring 12. The top of the sleeve A1 is provided with a top cover 2, and the bottom of the sleeve A1 is provided with a sleeve B6. The bottom of the sleeve B6 is welded with a counterweight ring 10, and the bottom of the counterweight ring 10 is provided with a conical baffle 13. The bottom of the conical baffle 13 is welded with a conical head 14.
[0022] The flow velocity sensor body 15 passes through the sleeve A1 and sleeve B6. The bottom of the flow velocity sensor body 15 is provided with a support column 16, and the bottom of the support column 16 is provided with a sensor probe 19.
[0023] When in use, the flow rate sensor body 15 first passes through the sleeve A1 and sleeve B6, and rotates and locks itself along the L-shaped slot 9. The anti-slip ring 17 can increase the friction between the support column 16 and the inner tube wall 8, and prevent the flow rate sensor body 15 from being affected by the buoyancy of the water in the sleeve B6 and causing it to shake. Then the sensor probe 19 can be inserted into the conical baffle 13.
[0024] The surveyor manually throws the flow velocity sensor device into the monitored water area. By setting up hook 3 and rope 4, the flow velocity sensor that is submerged in the river can be retrieved to prevent it from drifting away with the water flow.
[0025] During the process of the flow velocity sensor body 15 falling into the water, due to the weight of the counterweight ring 10, the conical baffle 13 and the conical head 14 first contact the water surface. The sharp structure of the conical head 14 can reduce the resistance caused by floating objects to the sensor. As the diving depth gradually increases, the conical baffle 13 can push away the floating objects on the water surface, effectively preventing the floating objects from hindering the diving of the flow velocity sensor body 15 and reducing the probability of the flow velocity sensor body 15 surfacing. The support column 16 has a hollow structure, through which the line connecting the flow velocity sensor body 15 and the sensor probe 19 can be passed. When the flow is flowing, the sensor probe 19 is washed and the flow velocity is transmitted to the flow velocity sensor body 15 through the wire to display the data.
[0026] After the flow rate sensor body 15 is recovered, the sleeve A1 can be disassembled from the sleeve B6, which facilitates the replacement or maintenance of the flow rate sensor body 15. The floating objects adhering to the surface of the conical baffle 13 are also easy to clean, saving time and effort. The entire device is made of stainless steel, which has the advantages of being waterproof and rustproof, thus improving the service life of the device.
[0027] To facilitate the recycling of flow rate sensors, for example, such as Figure 1As shown, this utility model also includes a hook 3 welded to the center of the top of the top cover 2, and a rope 4 fastened between the hooks 3.
[0028] When in use, by setting up hook 3 and rope 4, the surveyor can hold the other end of rope 4 to retrieve the current sensor that is submerged in the river water, preventing it from drifting away with the current.
[0029] For example, such as Figure 1 , Figure 2 As shown, the present invention also includes a threaded connecting pipe 5 welded to the bottom of the sleeve A1, a threaded connecting groove 7 opened at the top of the sleeve B6, and the threaded connecting pipe 5 being threadedly connected to the threaded connecting groove 7.
[0030] In use, sleeve A1 can be disassembled from sleeve B6, and the flow rate sensor body 15 can be placed inside sleeve B6 for easy replacement or maintenance.
[0031] For example, such as Figure 1 , Figure 2 As shown, the present invention also includes an inner tube wall 8 inside the sleeve B6, with L-shaped slots 9 on both sides of the inner tube wall 8. The sleeve B6 is interconnected with the counterweight ring 10, the fixing ring 12 and the conical stop frame 13. A tightening bolt 11 passes through the reserved hole at the top of the counterweight ring 10 and is threadedly connected to the reserved hole at the top of the fixing ring 12.
[0032] In use, the weight of the sensor probe 19 can be increased by the counterweight ring 10, the fixing ring 12, the conical baffle 13 and the conical head 14, so that it can be kept in a downward direction. The sharp structure of the conical head 14 can reduce the resistance caused by floating objects to the sensor. As the diving depth of the flow rate sensor body 15 gradually increases, the conical baffle 13 can effectively block the floating objects from hindering the diving of the flow rate sensor body 15 and reduce the probability of the flow rate sensor body 15 surfacing.
[0033] For example, such as Figure 1 , Figure 2 , Figure 3 As shown, the present invention also includes an anti-slip ring 17 that fits into the inner tube wall 8 and is sleeved on the middle section of the outer periphery of the support column 16. The bottom of the anti-slip ring 17 is welded on both sides of the support column 16. The locking blocks 18 engage with the L-shaped locking groove 9.
[0034] When in use, the support column 16 is slid down along the L-shaped slot 9 and then rotated so that the locking block 18 and one end of the L-shaped slot 9 are engaged with each other. The anti-slip ring 17 can increase the friction between the support column 16 and the inner tube wall 8, and prevent the flow rate sensor body 15 from being buoyed by water in the sleeve B6 and causing it to shake.
[0035] For example, such as Figure 3 As shown, the present invention also includes an electrical connection between the input end of the flow rate sensor body 15 and the output end of the sensor probe 19 via a wire.
[0036] When in use, the water flows and the sensor probe 19 transmits the flow velocity to the flow velocity sensor body 15 through the wire to display the data.
[0037] When using this utility model, the flow rate sensor body 15 first passes through the sleeve A1 and sleeve B6, and rotates and locks itself along the L-shaped slot 9. The anti-slip ring 17 can increase the friction between the support column 16 and the inner tube wall 8, and prevent the flow rate sensor body 15 from being affected by the buoyancy of the water in the sleeve B6 and causing it to shake. Then the sensor probe 19 can be inserted into the conical baffle 13.
[0038] The surveyor manually throws the flow velocity sensor device into the monitored water area. By setting up hook 3 and rope 4, the flow velocity sensor that is submerged in the river can be retrieved to prevent it from drifting away with the water flow.
[0039] During the process of the flow velocity sensor body 15 falling into the water, due to the weight of the counterweight ring 10, the conical baffle 13 and the conical head 14 first contact the water surface. The sharp structure of the conical head 14 can reduce the resistance caused by floating objects to the sensor. As the diving depth gradually increases, the conical baffle 13 can push away the floating objects on the water surface, effectively preventing the floating objects from hindering the diving of the flow velocity sensor body 15 and reducing the probability of the flow velocity sensor body 15 surfacing. The support column 16 has a hollow structure, through which the line connecting the flow velocity sensor body 15 and the sensor probe 19 can be passed. When the flow is flowing, the sensor probe 19 is washed and the flow velocity is transmitted to the flow velocity sensor body 15 through the wire to display the data.
[0040] After the flow rate sensor body 15 is recovered, the sleeve A1 can be disassembled from the sleeve B6, which facilitates the replacement or maintenance of the flow rate sensor body 15. The floating objects adhering to the surface of the conical baffle 13 are also easy to clean, saving time and effort. The entire device is made of stainless steel, which has the advantages of being waterproof and rustproof, thus improving the service life of the device.
[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An anti-drift weight flow rate sensor characterized by, Includes a sleeve A (1) and a fixing ring (12). The top of the sleeve A (1) is provided with a top cover (2), and the bottom of the sleeve A (1) is provided with a sleeve B (6). The bottom of the sleeve B (6) is welded with a counterweight ring (10). The bottom of the counterweight ring (10) is provided with a conical baffle (13), and the bottom of the conical baffle (13) is welded with a conical head (14). The flow velocity sensor body (15) passes through the sleeve A (1) and sleeve B (6). The bottom of the flow velocity sensor body (15) is provided with a support column (16), and the bottom of the support column (16) is provided with a sensor probe (19).
2. The anti-floating object counterweight flow velocity sensor according to claim 1, characterized in that, The top cover (2) has a hook (3) welded to the center of the top, and a rope (4) is fastened between the hooks (3).
3. The anti-floating object counterweight flow velocity sensor according to claim 1, characterized in that, The bottom of the sleeve A (1) is welded with a threaded connecting pipe (5), and the top of the sleeve B (6) is provided with a threaded connecting groove (7). The threaded connecting pipe (5) is threadedly connected to the threaded connecting groove (7).
4. The anti-floating object counterweight flow velocity sensor according to claim 1, characterized in that, The sleeve B (6) is provided with an inner tube wall (8), and L-shaped slots (9) are opened on both sides of the inner tube wall (8). The sleeve B (6) is connected to the counterweight ring (10), the fixing ring (12) and the conical baffle (13). The pre-reserved hole at the top of the counterweight ring (10) is filled with a tightening bolt (11), and is threadedly connected to the pre-reserved hole at the top of the fixing ring (12).
5. The anti-floating object counterweight flow velocity sensor according to claim 1, characterized in that, The outer periphery of the support column (16) is fitted with an anti-slip ring (17) that fits into the inner tube wall (8). The bottom of the anti-slip ring (17) on both sides of the support column (16) is welded with a locking block (18), and the locking block (18) engages with the L-shaped slot (9).
6. The anti-floating object counterweight flow velocity sensor according to claim 1, characterized in that, The input end of the flow velocity sensor body (15) and the output end of the sensor probe (19) are electrically connected by a wire.