A water level monitoring device for water conservancy projects

By introducing telescopic pipes and lifting and rotating mechanisms into water level monitoring devices in water conservancy projects, and using waterproof motors and servo motors for drive, the problems of submersion and inconvenience in replacing and maintaining level sensors have been solved, and flexible height and position adjustment has been achieved.

CN224286053UActive Publication Date: 2026-05-26FUJIAN JINYU CONSTR ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN JINYU CONSTR ENG CO LTD
Filing Date
2025-06-27
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing water level monitoring devices in water conservancy projects cannot adjust their height when the water level rises, which may cause the level sensor to be submerged. Furthermore, the level sensor is located above the water surface, making it inconvenient to replace and repair.

Method used

The liquid level sensor is fixedly connected to a telescopic tube, and combined with a lifting mechanism and a rotating mechanism, the vertical and horizontal adjustment of the liquid level sensor is achieved by driving the threaded rod and gears through a waterproof motor and a servo motor, which facilitates replacement and maintenance.

Benefits of technology

It enables flexible adjustment of the height and position of the liquid level sensor, avoiding the risk of flooding and simplifying the replacement and maintenance process.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a water level monitoring device for water conservancy projects, comprising: a telescopic pipe fixedly connected to a liquid level sensor, and an electric telescopic rod installed inside the telescopic pipe; and a base plate with a lifting mechanism for adjusting the height of the liquid level sensor installed on the top of the base plate, and a mounting bracket installed on the upper side of the base plate. When the waterproof motor assembly is activated, the threaded rod rotates, causing the lifting plate to rise with the support rod. A limiting rod acts as a limit, facilitating vertical adjustment of the liquid level sensor's height. When the second gear rotates, the first gear rotates, causing the telescopic pipe to rotate with the liquid level sensor, thereby adjusting the sensor's position for easy replacement and maintenance. At this time, the circular rod moves within a moving groove, and a rotating wheel is installed on the lower side of the circular rod, allowing the telescopic pipe to rotate horizontally with the liquid level sensor.
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Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, specifically to a water level monitoring device for water conservancy projects. Background Technology

[0002] Water conservancy projects are engineering projects constructed to prevent and control water-related disasters and to develop and utilize water resources. They encompass water-related projects such as flood control, drainage, irrigation, water supply, hydropower generation, navigation, water resource protection, soil and water conservation, as well as aquaculture, tourism, and ecological environment improvement. Water conservancy projects play a crucial role in flood control, water supply, power generation, navigation, and ecological protection. Water conservancy projects require the use of water level monitoring devices to monitor the water level and obtain actual information about the water body. In water level engineering, ultrasonic level gauges are the most commonly used water level monitoring devices, accurately monitoring data such as water level, water depth, rainfall, and flow rate.

[0003] Referring to Chinese Patent Publication No. CN218935727U, published on April 28, 2023, a water level monitoring device for water conservancy projects is disclosed. This utility model, a water level monitoring device for water conservancy projects, can achieve automatic extension and retraction by setting an adjustment frame assembly. A servo motor drives a threaded shaft to rotate, and according to the thread structure, a moving plate causes the inner cylinder to extend and retract within the outer cylinder. This mechanical method replaces the manual adjustment of the crossbar, making operation more labor-saving and convenient. Furthermore, the adjustment method using a servo motor-driven crossbar assembly also offers higher precision.

[0004] However, during the use of this utility model, if the water level rises, the water level sensor may be submerged because the height of the device cannot be adjusted. Furthermore, when replacing or repairing the water level sensor, it is inconvenient to operate because the water level sensor is located above the water surface. Therefore, there is still room for further improvement.

[0005] Therefore, we propose a water level monitoring device for water conservancy projects to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a water level monitoring device for water conservancy projects, in order to solve the problems mentioned above. In the process of using the utility model, if the water level rises, the height of the device cannot be adjusted, so there is a possibility that the water surface will submerge the liquid level sensor. Furthermore, when replacing or repairing the liquid level sensor, it is inconvenient to operate because the liquid level sensor is located above the water surface. Therefore, there is still room for further improvement.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a water level monitoring device for water conservancy projects, comprising:

[0008] The telescopic tube is fixedly connected to the liquid level sensor, and an electric telescopic rod is installed inside the telescopic tube.

[0009] Also includes:

[0010] A base plate, on the top of which is a lifting mechanism for adjusting the height of the liquid level sensor, and a mounting bracket is provided on the upper side of the base plate;

[0011] The lower side of the telescopic tube is provided with a rotating mechanism for adjusting the orientation of the telescopic tube, and the telescopic tube is fixedly connected to the first gear, and the first gear is rotatably connected to the connecting column.

[0012] Preferably, the base plate has internal sliding connections with connecting pins, and the connecting pins are distributed in an array.

[0013] Preferably, the lifting mechanism is composed of a threaded rod, a waterproof motor assembly, a lifting plate, and a limiting rod. The threaded rod is threadedly connected to the mounting bracket and fixedly connected to the output shaft of the waterproof motor assembly. The waterproof motor assembly is located on the upper side of the lifting plate.

[0014] Preferably, the upper side of the lifting plate is provided with a limit rod, and the limit rod is slidably connected to the mounting frame. The upper side of the lifting plate is provided with a support rod, and the upper side of the support rod is provided with a connecting column.

[0015] Preferably, the rotating mechanism is composed of a first gear, a second gear, a servo motor, a round rod, a rotating wheel, a limiting disk, and a moving groove. The first gear and the second gear are meshed and connected, and the second gear is fixedly connected to the output shaft of the servo motor. The servo motor is also fixedly connected to the connecting column.

[0016] Preferably, a round rod is provided on the lower side of the telescopic tube, and a rotating wheel is provided on the lower side of the round rod, and the upper side of the rotating wheel is in close contact with the lower side of the limiting plate.

[0017] Preferably, the round rod passes through the moving groove, and the limiting plate is located on the outside of the connecting column.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: When the water level monitoring device for water conservancy projects is activated, the waterproof motor assembly will cause the threaded rod to rotate, thereby causing the lifting plate to rise with the support rod. The limiting rod plays a limiting role, which facilitates the vertical adjustment of the height of the liquid level sensor. When the second gear rotates, it will cause the first gear to rotate, thereby causing the telescopic tube to rotate with the liquid level sensor, thus adjusting the position of the liquid level sensor, which is convenient for replacement and maintenance. At this time, the round rod will move in the moving groove, and a rotating wheel is provided on the lower side of the round rod, so that the telescopic tube rotates horizontally with the liquid level sensor.

[0019] 1. It is equipped with a base plate, connecting pins and mounting brackets. The connecting pins are located on the underside of the base plate, which can be used to connect the base plate to the ground to enhance stability.

[0020] 2. It is equipped with a threaded rod, a waterproof motor assembly, and a limit rod. The support rod is fixedly connected to the lifting plate, and the upper side of the lifting plate is equipped with a waterproof motor assembly and a limit rod. The position relationship between the support rod and the base plate can be adjusted by moving the lifting plate. Activating the waterproof motor assembly will cause the threaded rod to rotate, thereby allowing the lifting plate to rise with the support rod. The limit rod plays a limiting role, which facilitates vertical adjustment of the height of the liquid level sensor.

[0021] 3. It is equipped with a first gear, a second gear, and a servo motor. Starting the servo motor will cause the second gear to rotate. When the second gear rotates, it will cause the first gear to rotate, which will cause the telescopic tube to rotate along with the liquid level sensor, thereby adjusting the position of the liquid level sensor for easy replacement and maintenance.

[0022] 4. It is equipped with a round rod, a rotating wheel and a moving groove. When the first gear rotates, the round rod will move in the moving groove, and the rotating wheel is provided on the lower side of the round rod, so that the telescopic tube carries the liquid level sensor to rotate horizontally. Attached Figure Description

[0023] Figure 1 This is a top view of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of this utility model from below;

[0025] Figure 3 This is an exploded view of the circular rod, rotating wheel, and limiting disc of this utility model;

[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of the telescopic tube of this utility model;

[0027] Figure 5 This is a schematic diagram of the telescopic tube in motion state of this utility model.

[0028] In the diagram: 1. Base plate; 2. Connecting pin; 3. Mounting bracket; 4. Threaded rod; 5. Waterproof motor assembly; 6. Lifting plate; 7. Limiting rod; 8. Support rod; 9. Connecting column; 10. First gear; 11. Second gear; 12. Servo motor; 13. Round rod; 14. Rotating wheel; 15. Limiting plate; 16. Moving groove; 17. Telescopic tube; 18. Liquid level sensor; 19. Electric telescopic rod. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-5 As shown, this utility model provides a technical solution: a water level monitoring device for water conservancy projects, comprising: a base plate 1, a connecting pin 2, a mounting frame 3, a threaded rod 4, a waterproof motor assembly 5, a lifting plate 6, a limiting rod 7, a support rod 8, a connecting column 9, a first gear 10, a second gear 11, a servo motor 12, a round rod 13, a rotating wheel 14, a limiting disc 15, a moving groove 16, a telescopic tube 17, a liquid level sensor 18, and an electric telescopic rod 19.

[0031] In the use of the existing utility model, if the water level rises, the height of the device cannot be adjusted, so there is a possibility that the water surface will submerge the liquid level sensor 18. Furthermore, when replacing or repairing the liquid level sensor 18, it is inconvenient to operate because the liquid level sensor 18 is located above the water surface. Therefore, there is still room for further improvement.

[0032] like Figure 1 , Figure 2 and Figure 5 As shown, the base plate 1 has a sliding connection of connecting pins 2, which are arranged in an array. The upper side of the base plate 1 is provided with a mounting bracket 3. The threaded rod 4 is threadedly connected to the mounting bracket 3. The threaded rod 4 is fixedly connected to the output shaft of the waterproof motor assembly 5. The waterproof motor assembly 5 is located on the upper side of the lifting plate 6. The upper side of the lifting plate 6 is provided with a limit rod 7, which is slidably connected to the mounting bracket 3. The upper side of the lifting plate 6 is provided with a support rod 8, and the upper side of the support rod 8 is provided with a connecting column 9.

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the telescopic tube 17 is fixedly connected to the first gear 10, the first gear 10 is rotatably connected to the connecting column 9, the first gear 10 is meshed with the second gear 11, the second gear 11 is fixedly connected to the output shaft of the servo motor 12, the servo motor 12 is fixedly connected to the connecting column 9, the round rod 13 passes through the moving groove 16, the limiting plate 15 is set on the outside of the connecting column 9, the round rod 13 is set on the lower side of the telescopic tube 17, the rotating wheel 14 is set on the lower side of the round rod 13, the upper side of the rotating wheel 14 is tightly fitted with the lower side of the limiting plate 15, the telescopic tube 17 is fixedly connected to the liquid level sensor 18, and the electric telescopic rod 19 is set inside the telescopic tube 17.

[0034] How to use:

[0035] like Figure 1 As shown, a connecting pin 2 is provided on the lower side of the base plate 1, and the connecting pin 2 is slidably connected to the base plate 1. When in use, the base plate 1 is first placed vertically to the ground. If the ground is not stable, the ground is repaired before placing the base plate 1. Then the connecting pin 2 is inserted into the ground. Since there are many connecting pins 2, the base plate 1 can be connected to the ground through the connecting pins 2, thereby enhancing stability. If the ground is soft, a longer connecting pin 2 can be used to enhance stability.

[0036] like Figure 1 and Figure 2 As shown, when the water level rises too much, there is a possibility that the water surface may submerge the liquid level sensor 18. The mounting bracket 3 is set on the upper side of the base plate 1, and a support rod 8 passes through the inside of the mounting bracket 3. The threaded rod 4 is threadedly connected to the mounting bracket 3, and the limiting rod 7 is slidably connected to the mounting bracket 3. The waterproof motor assembly 5 is set above the lifting plate 6, and the waterproof motor assembly 5 consists of a waterproof shell, a seal and a waterproof motor. When the waterproof motor assembly 5 is started, the threaded rod 4 will rotate, thereby moving the lifting plate 6 upward, and then moving the lifting plate 6 with the support rod 8 upward, thereby adjusting the height of the liquid level sensor 18. The limiting rod 7 limits the lifting plate 6, making it easy for the liquid level sensor 18 to rise vertically.

[0037] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, when the device is installed on the water surface, if the liquid level sensor 18 needs to be replaced or repaired, there is no need to disassemble the device. Start the servo motor 12, and the servo motor 12 will cause the second gear 11 to rotate. When the second gear 11 rotates, since the second gear 11 is meshed with the first gear 10 and the first gear 10 is rotatably connected to the connecting column 9, the first gear 10 will rotate. Since the first gear 10 is fixedly connected to the telescopic tube 17, the telescopic tube 17 will rotate with the liquid level sensor 18, thereby adjusting the position of the liquid level sensor 18, which is convenient for replacement and maintenance.

[0038] It should be noted that a round rod 13 is provided on the lower side of the first gear 10. When the first gear 10 rotates, the round rod 13 will move within the moving groove 16, which has a certain limiting effect. A rotating wheel 14 is provided on the lower side of the round rod 13. When the round rod 13 rotates, the rotating wheel 14 will rotate along the lower side of the limiting plate 15, thereby causing the telescopic tube 17 to rotate horizontally with the liquid level sensor 18. This prevents the side of the telescopic tube 17 connected to the liquid level sensor 18 from being subjected to excessive force, which would cause the first gear 10 and the second gear 11 to mesh unstablely.

[0039] like Figure 4 As shown, when it is necessary to adjust the position of the liquid level sensor 18 on the water surface, the electric telescopic rod 19 is activated, and a section inside the telescopic tube 17 will move, thereby moving the liquid level sensor 18 to facilitate monitoring. Both ends of the electric telescopic rod 19 are fixedly connected to the telescopic tube 17, so the two parts of the telescopic tube 17 will not fall off.

[0040] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0041] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A water level monitoring device for water conservancy projects, comprising: Telescopic tube (17), which is fixedly connected to liquid level sensor (18), and an electric telescopic rod (19) is provided inside the telescopic tube (17); Its characteristic is that it further includes: The base plate (1) is provided with a lifting mechanism for adjusting the height of the liquid level sensor (18) above the base plate (1), and a mounting bracket (3) is provided on the upper side of the base plate (1). The lower side of the telescopic tube (17) is provided with a rotating mechanism for adjusting the orientation of the telescopic tube (17), and the telescopic tube (17) is fixedly connected to the first gear (10), and the first gear (10) is rotatably connected to the connecting column (9).

2. The water level monitoring device for water conservancy projects according to claim 1, characterized in that: The base plate (1) is internally slidably connected with connecting pins (2), and the connecting pins (2) are distributed in an array.

3. The water level monitoring device for water conservancy projects according to claim 1, characterized in that: The lifting mechanism is composed of a threaded rod (4), a waterproof motor assembly (5), a lifting plate (6), and a limiting rod (7). The threaded rod (4) is threadedly connected to the mounting bracket (3), and the threaded rod (4) is fixedly connected to the output shaft of the waterproof motor assembly (5). The waterproof motor assembly (5) is located on the upper side of the lifting plate (6).

4. A water level monitoring device for water conservancy projects according to claim 3, characterized in that: The upper side of the lifting plate (6) is provided with a limit rod (7), and the limit rod (7) is slidably connected to the mounting frame (3). The upper side of the lifting plate (6) is provided with a support rod (8), and the upper side of the support rod (8) is provided with a connecting column (9).

5. A water level monitoring device for water conservancy projects according to claim 1, characterized in that: The rotating mechanism is composed of a first gear (10), a second gear (11), a servo motor (12), a round rod (13), a rotating wheel (14), a limiting disk (15), and a moving groove (16). The first gear (10) is meshed with the second gear (11), and the second gear (11) is fixedly connected to the output shaft of the servo motor (12). The servo motor (12) is fixedly connected to the connecting column (9).

6. A water level monitoring device for water conservancy projects according to claim 5, characterized in that: The telescopic tube (17) has a round rod (13) on its lower side, and a rotating wheel (14) is provided on the lower side of the round rod (13), and the upper side of the rotating wheel (14) is in close contact with the lower side of the limiting plate (15).

7. A water level monitoring device for water conservancy projects according to claim 6, characterized in that: The round rod (13) passes through the moving groove (16), and the limiting plate (15) is located on the outside of the connecting column (9).