Height-adjustable water level marker post
By using a fixed component and ball screw adjustable water level indicator design, the problems of limited measurement range and insufficient stability of water level indicator are solved, achieving flexible adjustment and high accuracy water level measurement.
Patent Information
- Application Number
- CN202520523961.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-24
AI Technical Summary
Existing water level markers have limited measurement range and cannot adapt to rapid changes in water level. Furthermore, setting up multiple markers is costly, takes up a lot of space, and is difficult to maintain stability and accuracy in complex environments.
The system employs a fixed assembly including a fixing plate, pins, lifting rings, and counterweights. Combined with water level markers one and two, which are adjusted via ball screws, it increases stability and measurement range. Sensors and motors are used to control the height of the water level markers.
It expands the water level measurement range, adapts to different depths and water level changes, improves the accuracy and stability of measurement, reduces manpower and time costs, and enhances applicability in complex environments.
Smart Images

Figure CN223796108U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of water level marking equipment, and specifically relates to a height-adjustable water level marker. Background Technology
[0002] A water level marker is a device used to measure and indicate water level. It is typically erected vertically in a body of water, with graduations on its surface. The water level is determined by observing the position of the water surface at the corresponding graduations. Water level markers help people understand water level changes and have wide applications in water conservancy projects, hydrological monitoring, port operations, and flood control and disaster reduction. However, commonly used water level markers have several significant drawbacks. First, their measurement range is limited. Due to the fixed length of the marker, when the water level exceeds the marker's measurement range, accurate water level data cannot be obtained. This is due to inherent design limitations. A common solution is to install multiple water level markers of different lengths, but this increases costs and occupies more space, affecting the surrounding environment and facility layout. Second, these water level markers are ill-suited to rapid water level changes. If the water level rises rapidly, the marker may quickly lose its measuring function because it cannot adjust its position in real time with the water level. The conventional approach is to increase the frequency of observations, but this requires more manpower and time. The usual solution is to perform regular calibration and maintenance, but this is not only time-consuming and labor-intensive, but may also affect normal water level monitoring during maintenance, and cannot completely avoid the subsequent impact of natural factors. Therefore, a new structure is needed to solve the above technical problems. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a height-adjustable water level indicator to solve the problems mentioned in the background art.
[0004] This utility model is achieved through the following technical solution: a height-adjustable water level indicator, comprising: a fixing component, a first water level indicator, and a second water level indicator. The fixing component includes: a fixing plate, pins, a lifting ring, and a counterweight. The counterweight is installed inside the fixing plate. A lifting ring is installed on the lower surface of the fixing plate. Pins are symmetrically installed on the left and right edges of the lower surface of the fixing plate. The first water level indicator is installed on the upper surface of the fixing plate. A scale line is provided on the outer surface of the first water level indicator. A float is fitted on the outer surface of the first water level indicator. A float plate is installed on the outer surface of the float. The second water level indicator is installed inside the first water level indicator via a ball screw. Sensors are installed on the outer surfaces of both the first and second water level indicators.
[0005] In a preferred embodiment, multiple counterweights are evenly installed inside the fixing plate. Multiple pins are evenly installed on the left and right edges of the lower surface of the fixing plate. Multiple lifting rings are evenly installed on the lower surface of the fixing plate. A water level indicator is installed at the center of the upper surface of the fixing plate. The counterweights increase the weight of the entire fixing assembly, enabling the water level indicator to remain stable in the water or when impacted by water flow, reducing swaying and displacement, thereby improving the accuracy of measurement. At the same time, the pins installed symmetrically on both sides can be inserted into the bottom of the water or other fixed positions, further enhancing the stability of the fixing assembly and preventing the water level indicator from shifting under the action of water flow.
[0006] In a preferred embodiment, the upper end of the first water level marker is open, and the diameter of the opening is the same as that of the second water level marker. A motor is installed at the bottom inside the first water level marker, and the output shaft of the motor is connected to a ball screw via a coupling. By combining the first and second water level markers and adjusting the ball screw, the range of water level measurement can be greatly expanded to adapt to different depths and situations with large water level variations. The height and measurement method of the water level markers can be flexibly adjusted, enhancing its applicability in various complex environments.
[0007] In a preferred embodiment, a slider is slidably mounted on the outer surface of the ball screw, and a second water level indicator is mounted on the upper surface of the slider. The outer surface of the second water level indicator abuts against the inner surface of the first water level indicator, and a scale line is provided on the outer surface of the second water level indicator.
[0008] In a preferred embodiment, two sensors are symmetrically installed on the outer surface of the second water level marker and the upper edge of the outer surface of the first water level marker, respectively. The sensors are electrically connected to the motor through a PLC controller.
[0009] In a preferred embodiment, a float with a circular structure is movably fitted on the outer surface of the water level indicator, and a float plate is installed at the center of the outer surface of the float.
[0010] After adopting the above technical solution, the beneficial effects of this utility model are as follows: By setting a fixing component, which includes a fixing plate, pins, a lifting ring, and a counterweight, the counterweight is installed inside the fixing plate, the lifting ring is installed on the lower surface of the fixing plate, and pins are symmetrically installed on the left and right edges of the lower surface of the fixing plate. When in use, the setting of the counterweight lowers the center of gravity of the equipment, so that the water level indicator can remain stable in the water or when it is impacted by water flow, reducing shaking and displacement, thereby improving the accuracy of measurement. At the same time, the pins installed symmetrically on the left and right can be inserted into the bottom of the water or other fixed positions, further enhancing the stability of the fixing component and preventing the water level indicator from shifting under the action of water flow.
[0011] By setting up water level marker one and water level marker two, water level marker one is installed on the upper surface of the fixed plate. The outer surface of water level marker one is marked with scale lines, and a float is fitted onto the outer surface of water level marker one. A float plate is installed on the outer surface of the float. Water level marker two is installed inside water level marker one via a ball screw. Sensors are installed on the outer surfaces of both water level marker one and water level marker two. In use, by combining water level marker one and water level marker two and adjusting the ball screw, the range of water level measurement can be greatly expanded to adapt to different depths and situations with large water level changes. The height and measurement method of the water level markers can be flexibly adjusted, enhancing its applicability in various complex environments. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the overall structure of a height-adjustable water level indicator according to the present invention.
[0014] Figure 2 This is a schematic diagram of a height-adjustable water level indicator, or a second water level indicator, according to the present invention.
[0015] In the diagram, 100 is the fixing plate, 110 is the pin, 120 is the lifting ring, and 130 is the counterweight.
[0016] 200 - Water level indicator, 210 - Scale line, 220 - Motor, 230 - Ball screw, 240 - Slider, 250 - Sensor;
[0017] 300 - Water Level Benchmark Two;
[0018] 400 - Float, 410 - Float plate. Detailed Implementation
[0019] 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.
[0020] Please see Figures 1 to 2This utility model provides a technical solution: a height-adjustable water level indicator, comprising: a fixing component, a water level indicator 200, and a water level indicator 300. The fixing component includes: a fixing plate 100, pins 110, a lifting ring 120, and a counterweight 130. The counterweight 130 is installed inside the fixing plate 100, and the lifting ring 120 is installed on the lower surface of the fixing plate 100. Pins are symmetrically installed on the left and right edges of the lower surface of the fixing plate 100. 110. A water level indicator 1 200 is installed on the upper surface of the fixed plate 100. A scale line 210 is provided on the outer surface of the water level indicator 1 200. A float 400 is fitted on the outer surface of the water level indicator 1 200. A float plate 410 is installed on the outer surface of the float 400. A water level indicator 2 300 is installed inside the water level indicator 1 200 through a ball screw 230. A sensor 250 is installed on the outer surface of both the water level indicator 1 200 and the water level indicator 2 300.
[0021] Please see Figure 1 , Figure 2 As the first embodiment of this utility model: multiple counterweights 130 are evenly installed inside the fixing plate 100, multiple pins 110 are evenly installed on the left and right edges of the lower surface of the fixing plate 100, multiple lifting rings 120 are evenly installed on the lower surface of the fixing plate 100, and a water level indicator 200 is installed at the center of the upper surface of the fixing plate 100.
[0022] When using the device, the user first takes some counterweights, such as iron blocks or other objects with a density greater than that of water, and then attaches them to the lower surface of the fixing plate 100 using ropes and lifting rings 120. The fixing plate 100 is then fixed in the water area to be measured. The pins 110 on the lower surface of the fixing plate 100 are inserted into the bottom of the water area. The counterweight 130 lowers the center of gravity of the device, making the water level indicator stable in the water or when impacted by water flow, reducing swaying and deviation, thereby improving the accuracy of the measurement. At the same time, the symmetrically installed pins 110 can be inserted into the bottom of the water or other fixed positions, further enhancing the stability of the fixing components and preventing the water level indicator from shifting under the action of water flow.
[0023] Please see Figure 1 , Figure 2 As a second embodiment of the present utility model: the upper end of the water level indicator 200 is open, and the diameter of the opening is the same as the diameter of the water level indicator 300. A motor 220 is installed at the bottom inside the water level indicator 200, and a ball screw 230 is installed on the output shaft of the motor 220 through a coupling.
[0024] A slider 240 is slidably mounted on the outer surface of the ball screw 230. A water level indicator 300 is mounted on the upper surface of the slider 240. The outer surface of the water level indicator 300 abuts against the inner surface of the water level indicator 200. A scale line 210 is provided on the outer surface of the water level indicator 300.
[0025] Two sensors 250 are symmetrically installed on the outer surface of water level indicator 200 and the upper edge of the outer surface of water level indicator 1. The sensors 250 are electrically connected to motor 220 through PLC controller.
[0026] The outer surface of the water level indicator 200 is fitted with a floating block 400 in a circular structure, and a floating plate 410 is installed at the center of the outer surface of the floating block 400.
[0027] In use, after the water level indicator 200 is fixed in the water area by the fixing components, the water surface will float the float 400 and the float plate 410, aligning the upper edge of the float 400 with the scale line 210 on the outer surface of the water level indicator 200. The user can then determine the water level at this location using the scale reading (the water level is the value of the scale line 210 on the water level indicator 200 minus the height of the float 400). When the water level rises, the magnetic float 400 and the float plate 410 will also rise. When the float 400 blocks the sensor 250, it indicates that the water level is outside the measurement range of the water level indicator 200. (The sensor 250 is existing technology; any model currently available on the market can be selected.) (The working principle and workflow will not be elaborated here.) The motor 220 will be started, causing the output shaft of the motor 220 to rotate, which in turn drives the ball screw 230 to rotate, thereby causing the slider 240 on its outer surface to rise, which in turn causes the water level indicator 300 on the upper surface of the slider 240 to rise (a waterproof sealing ring is provided at the sliding connection between the water level indicator 200 and the water level indicator 300). When the water level indicator 300 rises, the height of the water level measurement is increased, thus enabling subsequent measurements. Due to the combination of the water level indicator 200 and the water level indicator 300, as well as the adjustment of the ball screw 230, the range of water level measurement can be greatly expanded, adapting to different depths and situations with large water level changes. The height of the water level indicator and the measurement method can be flexibly adjusted, enhancing its applicability in various complex environments.
[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 height-adjustable water level indicator, comprising: The fixing assembly, water level indicator one (200) and water level indicator two (300) are characterized in that the fixing assembly includes: a fixing plate (100), a pin (110), a lifting ring (120) and a counterweight (130), wherein the counterweight (130) is installed inside the fixing plate (100) and the lifting ring (120) is installed on the lower surface of the fixing plate (100); The lower surface of the fixing plate (100) is symmetrically equipped with pins (110) on the left and right edges respectively. The upper surface of the fixing plate (100) is equipped with a water level indicator (200). The outer surface of the water level indicator (200) is provided with scale lines (210). The outer surface of the water level indicator (200) is fitted with a float (400). A float plate (410) is installed on the outer surface of the float (400), and a water level gauge (300) is installed inside the water level gauge one (200) through a ball screw (230). A sensor (250) is installed on the outer surface of both the water level gauge one (200) and the water level gauge two (300).
2. The height-adjustable water level indicator as described in claim 1, characterized in that: Multiple counterweights (130) are evenly installed inside the fixing plate (100). Multiple pins (110) are evenly installed on the left and right edges of the lower surface of the fixing plate (100). Multiple lifting rings (120) are evenly installed on the lower surface of the fixing plate (100). A water level indicator (200) is installed at the center of the upper surface of the fixing plate (100).
3. The height-adjustable water level indicator as described in claim 2, characterized in that: The upper end of the first water level indicator (200) is open, and the diameter of the opening is the same as that of the second water level indicator (300). A motor (220) is installed at the bottom inside the first water level indicator (200), and a ball screw (230) is installed on the output shaft of the motor (220) through a coupling.
4. The height-adjustable water level indicator as described in claim 3, characterized in that: A slider (240) is slidably mounted on the outer surface of the ball screw (230). A second water level indicator (300) is mounted on the upper surface of the slider (240). The outer surface of the second water level indicator (300) abuts against the inner surface of the first water level indicator (200). A scale line (210) is provided on the outer surface of the second water level indicator (300).
5. The height-adjustable water level indicator as described in claim 4, characterized in that: Two sensors (250) are symmetrically installed on the outer surface of the second water level marker (300) and the upper edge of the outer surface of the first water level marker (200). The sensors (250) are electrically connected to the motor (220) through a PLC controller.
6. The height-adjustable water level indicator as described in claim 5, characterized in that: The outer surface of the water level indicator (200) is fitted with a float (400) in a circular structure, and a float plate (410) is installed at the center of the outer surface of the float (400).