Water level measuring device

Abstract

The utility model belongs to the technical field of water conservancy equipment, and particularly relates to a water level measuring device which comprises a water level measuring vertical plate and a pulling rope, a fixed pulley A is installed at one end of a transverse cantilever, a fixed pulley B is installed at the other end of the transverse cantilever, one end of the pulling rope sequentially winds around the fixed pulley A and the fixed pulley B, and a floating disc is tied to one end of the pulling rope. The other end of the traction rope is tied with a counterweight plate, and the floating disc is linked with the counterweight plate, so that the automatic measurement of the water level is realized, and the problem of measurement errors caused by direct exposure of a traditional buoy device to a water body is avoided. The utility model also solves the problem that the traditional water level measuring device is difficult to read in a high fall scene. And through the combination of the counterweight plate and the water level indicating rod, the inconvenience of reading the water level depth in a severe environment is avoided. In addition, the movement of the traction rope is smoother due to the corrosion-resistant treatment of the fixed pulley and the design of a sealed bearing.

Description

Technical Field

[0001] This utility model belongs to the field of water conservancy equipment technology, specifically relating to a water level measuring device. Background Technology

[0002] Water level measuring devices are widely used in water conservancy projects, agricultural irrigation, and flood control. Their main function is to measure water level in real time for water resource management and disaster early warning. Currently, common water level measuring devices include buoy-type, ultrasonic-type, and photoelectric-type devices.

[0003] In existing technologies, buoy-type water level measuring devices are widely used due to their simple structure and low cost, but they also have some problems. For example, the float-type water level measuring device with patent number CN210441954U measures and reads the water level through the linkage of a float and a reading plate. However, in practical applications, the float and reading plate may be directly exposed to the water, making them susceptible to water flow impact, pollutant adhesion, and external environmental erosion, leading to increased measurement errors. In addition, the reflective surface of the reading plate may be difficult to read in low-light conditions. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a water level measuring device that can reduce the influence of the external environment on the measurement accuracy, reduce maintenance costs, and improve the accuracy and reliability of water level measurement.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A water level measuring device includes a water level measuring vertical plate and a traction rope. A horizontal cantilever is welded to the top of the water level measuring vertical plate. A fixed pulley A is installed at one end of the horizontal cantilever, and a fixed pulley B is installed at the other end of the horizontal cantilever. One end of the traction rope passes through the fixed pulley A and the fixed pulley B in sequence. A float is attached to one end of the traction rope, and a counterweight is attached to the other end of the traction rope. The float is used to float on the water surface to measure the water level height, and the counterweight is used to indicate the water level depth.

[0007] Furthermore, a scale line is provided on one side of the water level measuring vertical plate, and the scale line gradually increases in value from top to bottom. A water level indicator rod is provided at the bottom of the counterweight plate, and the water level indicator rod is used to indicate the water level depth read from the scale line.

[0008] Furthermore, the fixed pulley A and the horizontal cantilever are movably connected by a pivot, and the fixed pulley B is also movably connected to the horizontal cantilever by a pivot. The fixed pulleys A and B are used for the smooth movement of the traction rope.

[0009] Furthermore, a reinforcing frame is welded between the horizontal cantilever and the water level measuring vertical plate, and the reinforcing frame is used to reinforce the horizontal cantilever.

[0010] Furthermore, the bottom of the water level measuring vertical plate is provided with a base, and the base has a through hole inside.

[0011] Furthermore, the upper surface of the floating platform is provided with lifting lugs, the traction rope is attached to the lifting lugs, the mass of the counterweight plate is 0.2-0.4 times that of the floating platform, and the floating platform floats on the water surface.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The water level measuring device provided by this utility model achieves automatic water level measurement through the linkage of the float and the counterweight plate, avoiding the measurement error problem caused by the direct exposure of traditional buoy devices to the water body. Simultaneously, the smooth guidance of the traction rope through fixed pulleys A and B makes the movement of the float and counterweight plate more sensitive, improving measurement accuracy. The water level indicator rod at the bottom of the counterweight plate can accurately indicate the value of the scale line, avoiding the inconvenience of reading in traditional devices.

[0014] This invention also solves the problem of difficulty in reading water levels in scenarios with high drops using traditional water level measuring devices. By combining a counterweight plate with a water level indicator rod, the inconvenience of reading water depth in harsh environments is avoided. In addition, the corrosion-resistant treatment of the fixed pulley and the sealed bearing design make the movement of the traction rope smoother, reducing the measurement error caused by pulley jamming in traditional devices, thereby further improving the accuracy and reliability of water level measurement. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This utility model Figure 1 A magnified structural diagram of region A;

[0017] Figure 3 This utility model Figure 1 A magnified structural diagram of region B;

[0018] Figure 4 This utility model Figure 1 A magnified structural diagram of region C;

[0019] Figure 5 This is a three-dimensional structural diagram of the floating platform of this utility model;

[0020] Figure 6 This is a three-dimensional structural diagram of the present invention after assembly, with the water level rising.

[0021] Figure 7 This is a three-dimensional structural diagram of the present invention after assembly, with the water level dropping.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 101. Vertical plate for water level measurement; 111. Base; 112. Scale line; 102. Horizontal cantilever; 121. Fixed pulley A; 122. Fixed pulley B; 103. Reinforcing frame; 104. Traction rope; 105. Float; 151. Lifting lug; 106. Counterweight plate; 161. Water level indicator rod; 107. Dam; 108. Water surface. Detailed Implementation

[0024] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0025] like Figures 1-7 As shown, a water level measuring device includes a water level measuring vertical plate 101 and a traction rope 104. A horizontal cantilever 102 is welded to the top of the water level measuring vertical plate 101. A fixed pulley A121 is installed at one end of the horizontal cantilever 102, and a fixed pulley B122 is installed at the other end of the horizontal cantilever 102. Both fixed pulleys A121 and B122 are made of high-strength nylon material and their surfaces are treated with corrosion resistance to adapt to the environment of long-term outdoor use. One end of the traction rope 104 passes sequentially around fixed pulleys A121 and B122. The traction rope 104 is made of high-molecular-weight polyethylene material with a tensile strength of 200N. One end of the rope is attached to a float 105, and the other end is attached to a counterweight plate 106. The float 105 is used to float on the water surface 108 and drive the movement of the traction rope 104 by the change of water level to determine the water level height; the counterweight plate 106 is used to maintain the tension of the traction rope 104 and at the same time indicates the water level depth through the water level indicator rod 161.

[0026] like Figures 1-4 As shown, a scale line 112 is provided on one side of the water level measuring vertical plate 101. The scale line 112 is laser etched and coated with an anti-rust coating to ensure long-term visibility in humid environments. The scale line 112 gradually increases in value from top to bottom to indicate the specific value of the water level depth. A water level indicator rod 161 is welded to the bottom of the counterweight plate 106.

[0027] like Figures 1-3As shown, fixed pulley A121 and horizontal cantilever 102 are movably connected via a rotating shaft, and fixed pulley B122 is also movably connected to horizontal cantilever 102 via a rotating shaft. The rotating shaft has a diameter of 2cm and is made of wear-resistant alloy steel. Sealed bearings are installed at both ends of the rotating shaft to reduce friction during pulley rotation and improve the smoothness of the movement of the traction rope 104. The groove width of fixed pulleys A121 and B122 is designed to be 1.5 times the diameter of the traction rope 104, ensuring that the traction rope 104 does not experience jamming during its winding process, further improving the reliability of the device operation.

[0028] like Figure 1 As shown, a reinforcing frame 103 is welded between the horizontal cantilever 102 and the water level measuring vertical plate 101. The reinforcing frame 103 is made of Q235 carbon steel to provide stable support, strengthen the connection strength of the horizontal cantilever 102, and prevent deformation or loosening due to vibration or external force during long-term use.

[0029] like Figure 1 As shown, the bottom of the water level measuring vertical plate 101 is provided with a base 111. The base 111 has four through holes with a diameter of 20mm inside. The through holes are used to insert expansion bolts to securely install the device on the dam 107.

[0030] like Figures 1-5 As shown, the upper surface of the float 105 is provided with a lifting lug 151, and the traction rope 104 is tied to the lifting lug 151. The mass of the counterweight plate 106 is 0.2-0.4 times that of the float 105. The counterweight plate 106 is made of cast iron, with an anti-corrosion coating sprayed on the surface, and is firmly tied to the other end of the traction rope 104 by mechanical connection to ensure the balance and accuracy of the overall measuring device.

[0031] The working principle of this utility model is as follows:

[0032] First, assemble the whole assembly onto the dam 107, fix the base 111 onto the dam with expansion bolts, and place the floating plate 105 on the water surface 108.

[0033] When the water level rises, the float 105 rises accordingly, and the counterweight plate 106 at the other end of the traction rope 104 automatically descends under the action of gravity. The height of the water level indicator rod 161 at the bottom of the counterweight plate 106 changes, and the scale line 112 indicated by the corresponding water level indicator rod 161 is the changed water level depth.

[0034] When the water level drops, the float 105 drops accordingly, and the counterweight plate 106 at the other end of the traction rope 104 rises automatically under the pull of the float 105's gravity. The height of the water level indicator rod 161 at the bottom of the counterweight plate 106 changes, and the scale line 112 indicated by the corresponding water level indicator rod 161 is the changed water level depth.

[0035] Using this water level measurement method, the main body of the water level measuring vertical plate 101 and the horizontal cantilever 102 will not be eroded by the water flow, will not rust, and will not have moss attached to the surface to affect the reading of water level depth. At the same time, the water level measuring vertical plate 101 is set on the dam 107, which makes it easier to read the water level depth.

[0036] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A water level measuring device, comprising a water level measuring vertical plate (101) and a traction rope (104), characterized in that: A horizontal cantilever (102) is welded to the top of the water level measuring vertical plate (101). A fixed pulley A (121) is installed at one end of the horizontal cantilever (102), and a fixed pulley B (122) is installed at the other end of the horizontal cantilever (102). One end of the traction rope (104) passes around the fixed pulley A (121) and the fixed pulley B (122) in sequence. A float (105) is tied to one end of the traction rope (104), and a counterweight plate (106) is tied to the other end of the traction rope (104). The float (105) is used to float on the water surface to measure the water level height, and the counterweight plate (106) is used to indicate the water level depth.

2. The water level measuring device according to claim 1, characterized in that: The water level measuring plate (101) has a scale line (112) on one side, and the scale line (112) gradually increases in value from top to bottom. The counterweight plate (106) has a water level indicator rod (161) at the bottom, and the water level indicator rod (161) is used to indicate the water level depth read by the scale line (112).

3. The water level measuring device according to claim 1, characterized in that: The fixed pulley A (121) and the horizontal cantilever (102) are movably connected by a pivot, and the fixed pulley B (122) is also movably connected to the horizontal cantilever (102) by a pivot. The fixed pulley A (121) and the fixed pulley B (122) are used for the smooth movement of the traction rope (104).

4. The water level measuring device according to claim 1, characterized in that: A reinforcing frame (103) is welded between the horizontal cantilever (102) and the water level measuring vertical plate (101), and the reinforcing frame (103) is used to reinforce the horizontal cantilever (102).

5. The water level measuring device according to claim 1, characterized in that: The bottom of the water level measuring vertical plate (101) is provided with a base (111), and the base (111) has a through hole inside.

6. The water level measuring device according to claim 1, characterized in that: The upper surface of the floating plate (105) is provided with a lifting lug (151), the traction rope (104) is attached to the lifting lug (151), the mass of the counterweight plate (106) is 0.2-0.4 times that of the floating plate (105), and the floating plate (105) floats on the water surface.

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