Floating ball device for monitoring water level of water conservancy dam

Abstract

The utility model discloses a floating ball device for water level monitoring of a water conservancy dam, which relates to the technical field of water level monitoring of water conservancy dams and particularly comprises a floating ball liquid level meter body and a protective structure. The protection structure comprises a power chamber connected with a fixing flange of the floating ball liquid level meter body, a mesh enclosure connected with the bottom of the power chamber and a first blocking plate matched with the bottom of the mesh enclosure, the first blocking plate is connected with the power chamber through a driving structure, and the mesh enclosure is of a multi-layer structure and sequentially comprises an inner mesh enclosure, a middle mesh enclosure and an outer mesh enclosure from inside to outside. The lower end of a guide rod of the floating ball liquid level meter body and the floating ball are both located in the middle of an inner cavity of the inner net cover. According to the floating ball device for monitoring the water level of the water conservancy dam, the protection structure is arranged, the net cover is used for filtering water flow, the probability that impurities are attached to the guide rod and the floating ball is reduced, when the water flow passes through the net cover, the net cover can comb the water flow, the impact force of the water flow to the floating ball is reduced, the probability that the floating ball deviates is reduced, and the monitoring precision of the floating ball device is guaranteed.

Description

Technical Field

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

[0002] In hydraulic engineering monitoring systems, water level monitoring devices are typically installed on dams to visually monitor the real-time water level. In related technologies, float-type measuring devices are commonly used to monitor the water level of hydraulic dams. However, during use, impurities easily adhere to the surface of the float guide rod, and continuous deposition of these impurities forms scale on the guide rod surface, which obstructs the movement of the float and affects measurement accuracy. Furthermore, water flow caused by water level fluctuations can impact the float, easily causing it to deviate from its direction of movement and exacerbating mechanical wear between the float and the guide rod. Therefore, this application proposes a float device for monitoring the water level of hydraulic dams. Utility Model Content

[0003] This invention provides a float device for monitoring water levels in hydraulic dams, which solves the problems mentioned in the background art, such as the easy formation of scale on the guide rod surface, which affects the measurement accuracy, and the easy aggravation of mechanical wear between the float and the guide rod by water flow impact.

[0004] This utility model provides the following technical solution: a float device for monitoring water level in a hydraulic dam, comprising a float level gauge body and a protective structure. The protective structure includes a power chamber connected to a fixed flange of the float level gauge body, a mesh cover connected to the bottom of the power chamber, and a first sealing plate adapted to the bottom of the mesh cover. The first sealing plate is connected to the power chamber through a driving structure. The mesh cover has a multi-layer structure, comprising an inner mesh cover, a middle mesh cover, and an outer mesh cover from the inside out. The lower end of the guide rod of the float level gauge body and the float are both located in the middle of the inner cavity of the inner mesh cover. A collection hopper is fixedly connected to the bottom of the inner mesh cover. An opening and closing door is provided at the bottom end of the collection hopper. A compensation sleeve is fixedly connected to the outer ring of the bottom end of the collection hopper.

[0005] Preferably, the drive structure includes a servo motor connected to the power chamber cavity, the output shaft of the servo motor being connected to a connecting rod at one end, and the other end of the connecting rod being connected to a first sealing plate.

[0006] Preferably, the outer diameter of the compensation sleeve is the same as the outer diameter of the inner mesh cover, and the bottoms of the compensation sleeve, the intermediate mesh cover, and the outer mesh cover are at the same height.

[0007] Preferably, the protective structure further includes a mesh cover cleaning assembly and a guide rod cleaning assembly. The mesh cover cleaning assembly includes a first scraper ring, a second scraper ring, and a third scraper ring. The first scraper ring, the second scraper ring, and the third scraper ring are respectively connected to the power chamber via an electric telescopic rod. The first scraper ring is located between the inner mesh cover and the middle mesh cover. The second scraper ring is located between the middle mesh cover and the outer mesh cover. The third scraper ring is movably sleeved on the outer ring of the outer mesh cover and is located inside the connecting rod.

[0008] Preferably, the guide rod cleaning assembly includes a fourth scraping ring movably sleeved on the outer ring of the guide rod. The fourth scraping ring is connected to the inner mesh cover via an electric telescopic rod. The top and bottom ends of the inner mesh cover are both provided with the fourth scraping ring.

[0009] Preferably, slots are provided on both sides of the bottom end of the collection hopper, and the opening and closing door includes a second sealing plate adapted to the slots. The second sealing plate is connected to the compensation sleeve through an electric telescopic rod.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The float device for water level monitoring of the water conservancy dam is equipped with a protective structure. The net filter filters the water flow, reducing the probability of impurities adhering to the guide rod and float. When the water flows through the net, the net can comb the water flow, reducing the impact force of the water flow on the float, thereby reducing the probability of the float deviating, ensuring the monitoring accuracy of this application, and avoiding the water flow impact from aggravating the mechanical wear of the float and guide rod.

[0012] 2. The float device for water level monitoring of the dam can clean impurities attached to the mesh cover by setting up a mesh cover cleaning component, so as to avoid impurities clogging the mesh cover and affecting the water level change inside the inner mesh cover, thereby ensuring the monitoring accuracy of this application; by setting up a guide rod cleaning component, it can clean the scale on the surface of the guide rod, reduce the floating ball movement resistance, and ensure the monitoring accuracy of the dam water level. Attached Figure Description

[0013] Figure 1 This is a front view of the structure of this utility model;

[0014] Figure 2 This is a bottom view of the structure of this utility model;

[0015] Figure 3 This is a schematic cross-sectional view of the structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the interior of the inner mesh cover of this utility model.

[0017] Figure 5 This is a schematic diagram of the explosion of the inner mesh cover of this utility model.

[0018] In the diagram: 1. Power chamber; 2. Electric telescopic rod three; 3. Float level gauge body; 4. Servo motor one; 5. Connecting rod; 6. First sealing plate; 7. Outer mesh cover; 8. Third scraper ring; 9. Electric telescopic rod one; 10. First scraper ring; 11. Second scraper ring; 12. Inner mesh cover; 13. Intermediate mesh cover; 14. Guide rod; 15. Electric telescopic rod two; 16. Gathering hopper; 17. Fourth scraper ring; 18. Compensation sleeve; 19. Second sealing plate; 20. Groove. 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] This utility model provides an embodiment: Please refer to Figures 1-5 A float device for monitoring water level in a hydraulic dam includes a float level gauge body 3 and a protective structure. The float level gauge body 3 is existing technology, and its model can be selected according to requirements, which is not limited here. In one embodiment of this application, the model of the float level gauge body 3 is UQZ-01-2000.

[0021] The protective structure includes a power chamber 1 and a mesh cover connected to the bottom of the power chamber 1. The power chamber 1 is connected to the bottom of the fixed flange of the float level gauge body 3. The mesh cover has a multi-layer structure, consisting of an inner mesh cover 12, a middle mesh cover 13, and an outer mesh cover 7 from the inside out. The central axes of the inner mesh cover 12, the middle mesh cover 13, and the outer mesh cover 7 are on the same straight line. The mesh diameters of the inner mesh cover 12, the middle mesh cover 13, and the outer mesh cover 7 are different. Preferably, the mesh diameters of the inner mesh cover 12, the middle mesh cover 13, and the outer mesh cover 7 gradually increase. The lower end of the guide rod 14 and the float of the float level gauge body 3 are located in the middle of the inner cavity of the inner mesh cover 12. In use, the mesh cover can filter the water flow that comes into contact with the guide rod 14 and the float, reducing the probability of impurities adhering to the guide rod 14 and the float. When the water flows through the mesh cover, the mesh cover can comb the water flow, reducing the impact force of the water flow on the float, thereby reducing the probability of the float deviating and ensuring the monitoring accuracy of this application. Furthermore, there is an isolation gap between the inner mesh cover 12 and the middle mesh cover 13 to facilitate the collection of filtered impurities, and there is an isolation gap between the middle mesh cover 13 and the outer mesh cover 7 to facilitate the collection of filtered impurities.

[0022] An inner mesh cover 12 is fixedly connected to a gathering hopper 16 at its bottom. The bottom of the gathering hopper 16 has an opening / closing door. A compensation sleeve 18 is fixedly connected to the outer ring of the bottom of the gathering hopper 16. The outer diameter of the compensation sleeve 18 is the same as the outer diameter of the inner mesh cover 12. The bottoms of the compensation sleeve 18, the intermediate mesh cover 13, and the outer mesh cover 7 are at the same height. With the gathering hopper 16, impurities in the inner mesh cover 12 can fall into the gathering hopper 16 when they settle. Grooves 20 are provided on both sides of the bottom of the gathering hopper 16. The opening / closing door includes a second sealing plate 19 adapted to the groove 20. The second sealing plate 19 is connected to the compensation sleeve 18 via an electric telescopic rod 2. With the opening / closing door, the extension and retraction of the electric telescopic rod 2 can change the position of the connected second sealing plate 19, thus sealing the bottom of the gathering hopper 16. Preferably, a filter plate is provided at the bottom of the collecting hopper 16, allowing impurities in the collecting hopper 16 to pass through it. The filter plate prevents large particles of impurities from entering the collecting hopper 16 during the cleaning process. The mesh diameter of both the filter plate and the mesh cover can be set as needed, and will not be elaborated upon here.

[0023] The top of the mesh cover is sealed by a first sealing plate 6. The first sealing plate 6 is connected to the power chamber 1 through a drive structure. The drive structure includes a servo motor 4 connected to the inner cavity of the power chamber 1. The output shaft of the servo motor 4 is connected to a connecting rod 5 through a reducer. The other end of the connecting rod 5 is connected to the first sealing plate 6. Through the setting of the drive structure, the rotation of the servo motor 4 can drive the connecting rod 5 connected to it to rotate. The connecting rod 5 can drive the first sealing plate 6 to rotate. The first sealing plate 6 can seal or release the bottom of the mesh cover.

[0024] The protective structure also includes a mesh cover cleaning assembly and a guide rod cleaning assembly. The mesh cover cleaning assembly includes a first scraper ring 10, a second scraper ring 11, and a third scraper ring 8. These three scraper rings are connected to the power chamber 1 via an electric telescopic rod 9. The first scraper ring 10 is located between the inner mesh cover 12 and the middle mesh cover 13. The second scraper ring 11 is located between the middle mesh cover 13 and the outer mesh cover 7. The third scraper ring 8 is movably fitted onto the outer ring of the outer mesh cover 7 and is located inside the connecting rod 5. The setup of the screen cleaning assembly allows the extension and retraction of the electric telescopic rod 9 to change the position of the first scraper ring 10, the second scraper ring 11, or the third scraper ring 8 connected to it. When the first scraper ring 10 moves, it can clean the outer wall of the inner screen 12 and the inner wall of the middle screen 13. When the second scraper ring 11 moves, it can clean the outer wall of the middle screen 13 and the inner wall of the outer screen 7. When the third scraper ring 8 moves, it can clean the outer wall of the outer screen 7, thus preventing impurities from clogging the screen and affecting the water level change inside the inner screen 12.

[0025] The guide rod cleaning assembly includes a fourth scraper ring 17 movably sleeved on the outer ring of the guide rod 14. The fourth scraper ring 17 is connected to the inner mesh cover 12 via an electric telescopic rod 2 15. The inner mesh cover 12 is provided with the fourth scraper ring 17 at both the top and bottom. By extending and retracting the electric telescopic rod 2 15, the position of the fourth scraper ring 17 connected to it can be changed. When the fourth scraper ring 17 moves, it can scrape off the scale adhering to the outer wall of the guide rod 14, which facilitates the movement of the float.

[0026] All electrical components involved in this application are prior art. Those skilled in the art understand their connection methods. With the help of those skilled in the art, all electrical components in this application and their compatible power supplies can be connected by wires. According to the actual situation, a suitable controller can be selected to meet the control requirements. For specific connections and control sequences, please refer to the description below. The electrical connection between each electrical component is completed in the order of operation. The detailed connection methods are well known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control.

[0027] In summary: When using the float device for monitoring the water level of the dam, the staff fixes the float device at a suitable location on the dam. The float level gauge body 3 can monitor the water level of the dam in real time. During the monitoring process, the mesh can intercept impurities in the water flow, reducing the probability of impurities adhering to the guide rod 14, thereby reducing the probability of scale formation on the guide rod 14 and facilitating the movement of the float. Furthermore, the mesh can sift the water flow. Through a step-by-step energy dissipation and turbulence dissipation mechanism, the mesh can significantly reduce the impact force of the water flow on the float, thereby reducing the probability of the float deviating and ensuring the reliability of this application. The controller inside the device can control the operation of the mesh cover cleaning component and the guide rod cleaning component as needed. When the mesh cover cleaning component is working, the electric telescopic rod 9 drives the first scraper ring 10, the second scraper ring 11 or the third scraper ring 8 connected to it to move, thereby cleaning the mesh cover. When the guide rod cleaning component is working, the electric telescopic rod 15 drives the fourth scraper ring 17 to move, scraping off the scale adhering to the surface of the guide rod, thereby cleaning the guide rod. The scraped scale can fall to the bottom of the inner cavity of the collection hopper 16 under the action of gravity. When it is necessary to clean the impurities inside the mesh cover, the electric telescopic rod 2 drives the second sealing plate 19 to move until the two second sealing plates 19 contact each other, and the bottom of the gathering hopper 16 is in a closed state. The electric telescopic rod 9 drives the first scraper ring 10, the second scraper ring 11, or the third scraper ring 8 connected to it to move until the first scraper ring 10 contacts the outer wall of the compensation sleeve 18. The drive structure drives the first sealing plate 6 to rotate, causing the first sealing plate 6 to separate from the mesh cover. The electric telescopic rod 9 continues to drive the first scraper ring 10, the second scraper ring 11, or the third scraper ring 8 connected to it to move until the first... The bottoms of scraper ring 10, second scraper ring 11, or third scraper ring 8 are flush with the bottom of the mesh cover. The first scraper ring 10, second scraper ring 11, and third scraper ring 8 push out the impurities inside the mesh cover, thus cleaning the impurities. During this process, the impurities at the bottom of the collection bucket 16 can be discharged into the dam water flow under the action of gravity. After the impurities are cleaned, the drive structure drives the first sealing plate 6 to reset. During the reset process of the first sealing plate 6, the impurities adhering to the first scraper ring 10, second scraper ring 11, and third scraper ring 8 can be scraped off. After the first sealing plate 6 is reset, the electric telescopic rod 9 drives the scraper ring connected to it to reset.

[0028] 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 structure adopt conventional technical means such as bolt connection that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A floating ball device for monitoring the water level of a water dam, comprising a floating ball liquid level gauge body (3) and a protective structure, characterized in that: The protection structure comprises a power chamber (1) connected with a fixed flange of a float ball liquid level meter body (3), a mesh cover connected with the bottom of the power chamber (1), and a first blocking plate (6) matched with the bottom of the mesh cover, wherein the first blocking plate (6) is connected with the power chamber (1) through a driving structure, the mesh cover is a multi-layer structure, and comprises an inner mesh cover (12), an intermediate mesh cover (13), and an outer mesh cover (7) from inside to outside, the lower end of a guide rod (14) of the float ball liquid level meter body (3) and a float ball are located in the middle of the inner cavity of the inner mesh cover (12), the bottom of the inner mesh cover (12) is fixedly connected with a collecting hopper (16), the bottom end of the collecting hopper (16) is provided with an opening and closing door, and the outer circle of the bottom end of the collecting hopper (16) is fixedly connected with a compensation sleeve (18).

2. The floating ball device for monitoring water level of a water dam according to claim 1, wherein: The driving structure comprises a servo motor (4) connected with the inner cavity of the power chamber (1), and the output shaft of the servo motor (4) is connected with a connecting rod (5), and the other end of the connecting rod (5) is connected with the first blocking plate (6).

3. The floating ball device for monitoring water level of a water dam according to claim 1, wherein: The outer diameter of the compensation sleeve (18) is the same as the outer diameter of the inner mesh cover (12), and the bottoms of the compensation sleeve (18), the intermediate mesh cover (13), and the outer mesh cover (7) are at the same height.

4. The water level monitoring floating ball device for a water dam according to claim 2, characterized in that: The protection structure further comprises a mesh cover cleaning assembly and a guide rod cleaning assembly, the mesh cover cleaning assembly comprises a first scraping ring (10), a second scraping ring (11), and a third scraping ring (8), the first scraping ring (10), the second scraping ring (11), and the third scraping ring (8) are connected with the power chamber (1) through a first electric telescopic rod (9), the first scraping ring (10) is located between the inner mesh cover (12) and the intermediate mesh cover (13), the second scraping ring (11) is located between the intermediate mesh cover (13) and the outer mesh cover (7), the third scraping ring (8) is movably sleeved on the outer circle of the outer mesh cover (7), and the third scraping ring (8) is located on the inner side of the connecting rod (5).

5. The water level monitoring float ball device for a water dam according to claim 4, characterized in that: The guide rod cleaning assembly comprises a fourth scraping ring (17) movably sleeved on the outer circle of the guide rod (14), and the fourth scraping ring (17) is connected with the inner mesh cover (12) through a second electric telescopic rod (15).

6. The water level monitoring float ball device for a water dam according to claim 1, characterized in that: The bottom end of the collecting hopper (16) is provided with a slot (20) on both sides, the opening and closing door comprises a second blocking plate (19) matched with the slot (20), and the second blocking plate (19) is connected with the compensation sleeve (18) through a third electric telescopic rod (2).

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