Adjustable reservoir liquid level gauge

Abstract

This utility model discloses an adjustable reservoir level gauge, relating to the field of level gauge technology. It includes a signal processing unit with a connecting cable at its bottom. An aviation connector is attached to the bottom of the connecting cable, and an extension cable is detachably mounted to the bottom of the aviation connector. A sensor is mounted at the bottom of the extension cable. A steel cylinder is positioned below the signal processing unit. A first suspension block is mounted on the outer surface of the extension cable above the sensor. A second suspension block is mounted on one side of the first suspension block. Counterweights are mounted at the bottom of both the first and second suspension blocks. A first support plate is mounted at the bottom of the signal processing unit. This utility model, through a series of structural features, allows the reservoir level gauge to be flexibly adjusted, making it suitable for reservoirs of different depths, thus expanding its applicability. It also ensures that the sensor is always more than 20 centimeters above the bottom, improving the monitoring accuracy of the reservoir level gauge.

Description

Technical Field

[0001] This utility model relates to the field of liquid level gauge technology, specifically an adjustable reservoir liquid level gauge. Background Technology

[0002] Reservoir level gauges are an important tool for water conservancy informatization. A reservoir level gauge is an instrument specifically used to measure the liquid level of large water bodies such as reservoirs, lakes, and rivers. It is also known as a water level gauge or liquid level gauge. Its core function is to provide key data support for water resource management, flood control scheduling, and ecological protection by monitoring water level changes in real time.

[0003] Most reservoir level gauges use pressure-type level sensors, which work by immersing the sensor in water. After immersion, the positive pressure chamber is subjected to the hydrostatic pressure of the liquid, while the negative pressure chamber is connected to atmospheric pressure through a gas-conducting cable to counteract the influence of atmospheric pressure. The net pressure is then measured, and the level is measured through the hydrostatic principle. Most existing pressure-type level sensors are directly immersed in the water, and the position of the sensor is controlled by the traction force of the cable to prevent the sensor from contacting the bottom. Since the cable cannot be adjusted or replaced, it cannot be adapted to reservoirs of different depths, which has certain limitations. Moreover, the sensor cannot rise or fall with the water level and cannot remain in the middle layer of water, which may lead to inaccurate monitoring. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable reservoir level gauge to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable reservoir level gauge, comprising a signal processing unit, a connecting cable at the bottom of the signal processing unit, an aviation plug at the bottom of the connecting cable, an extension cable detachably mounted at the bottom of the aviation plug, a sensor mounted at the bottom of the extension cable, a steel cylinder below the signal processing unit, a first suspension block mounted on the outer surface of the extension cable above the sensor, a second suspension block mounted on one side of the first suspension block, counterweights mounted at the bottom of both the first and second suspension blocks, a first support plate mounted at the bottom of the signal processing unit, a first sleeve fitted onto one end of the first support plate, a second support plate mounted at the top of the steel cylinder, and a second sleeve fitted onto one end of the second support plate.

[0006] Preferably, a winding device is installed at the top of the extension cable, a motor is installed at one end of the winding device, a telescopic rod is installed at one end of the motor, and one end of the telescopic rod is installed on the outer surface of the first frame. The output end of the motor is connected to the winding device through a one-way bearing. When the sensor moves downward, it pulls the winding device, causing the extension cable to unwind. When the sensor moves upward, the top of the extension cable moves upward. The motor can be remotely monitored and controlled to rotate the winding device and wind the top of the extension cable onto the outer surface of the winding device.

[0007] Preferably, the top of each of the first and second support plates is provided with two screws. Both the first and second sleeves are L-shaped. The top of each of the first and second sleeves is provided with a long groove that matches the screws. The top of the screws extends out of the long groove. The bent ends of the first and second sleeves are installed on the concrete surface of the reservoir, so that the signal processing unit and the steel cylinder are fixed above the water surface of the reservoir. The bottom end of the steel cylinder extends into the water. The screws and the water grooves work together to limit the first and second support plates respectively. The first and second support plates can be extended and retracted at one end of the first and second sleeves to adjust the extension length. A nut is installed at the top of the screw. The support plate is locked by contacting the sleeve with the nut, which ensures that the bottom of the steel cylinder can extend into the water.

[0008] Preferably, water inlets are provided on both sides of the steel cylinder, flange rings are provided at the top and bottom of the steel cylinder, and a conical bottom is detachably installed at the bottom of the steel cylinder. For reservoirs of different depths, multiple steel cylinders can be connected to ensure that the sensor can be lowered inside the steel cylinder so that the sensor is located in the middle layer of water.

[0009] Preferably, the top of the first and second suspension blocks are provided with mounting blocks, and the two mounting blocks are matched with the extension cable. A locking element is installed at the top of any one of the mounting blocks. The first and second suspension blocks are fixed together by the mounting blocks and sleeved on the outer surface of the extension cable. The locking element is a screw structure. Twisting the screw causes the screw to move in the direction of the extension cable. One end of the screw contacts the extension cable, locking the first and second suspension blocks in place.

[0010] Preferably, the sensor extends into the steel cylinder, and the sensor is protected by the steel cylinder to prevent turbulent water currents from impacting the sensor and to ensure monitoring accuracy.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This adjustable reservoir level gauge, consisting of a split signal processing unit, sensor, and steel cylinder, allows for the connection of an extension cable of appropriate length to the signal processing unit before installation, based on the current water depth of the reservoir. Multiple steel cylinders are connected end to end, ensuring that the lowest cylinder contacts the bottom of the water to protect the sensor. This allows the reservoir level gauge to be flexibly adjusted and is suitable for reservoirs of different depths, thus expanding its applicability.

[0013] This adjustable reservoir level gauge uses a steel cylinder, a first suspension block, a second suspension block, and a counterweight in conjunction. When the sensor is immersed in water through the steel cylinder, the first and second suspension blocks above the sensor provide buoyancy, while the counterweight provides gravity. The first and second suspension blocks counteract the gravity of the counterweight. When the torques of the two are balanced, the sensor can remain stable in the water layer, allowing it to rise and fall with the water level. This ensures that the sensor is always in the middle layer of water, improving the monitoring accuracy of the reservoir level gauge. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the extension cable structure of this utility model;

[0016] Figure 3 This is a schematic diagram showing the disassembled structure of the first and second suspension blocks of this utility model;

[0017] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0018] In the diagram: 1. Signal processing unit; 2. Connecting cable; 3. Aviation plug; 4. Rewinding component; 5. Extension cable; 6. Steel cylinder; 7. First support plate; 8. First frame; 9. Motor; 10. Second frame; 11. Second support plate; 12. Water inlet; 13. Conical bottom; 14. Screw; 15. Counterweight; 16. Sensor; 17. First suspension block; 18. Mounting block; 19. Second suspension block; 20. Locking component; 21. Telescopic rod. 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] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] like Figures 1 to 4 As shown, this embodiment of the adjustable reservoir level gauge includes a signal processing unit 1. A connecting cable 2 is located at the bottom of the signal processing unit 1. The signal processing unit 1 performs mathematical operations and transformations on the input signal. An aviation connector 3 is located at the bottom of the connecting cable 2. An extension cable 5 is detachably installed at the bottom of the aviation connector 3. The aviation connector 3 is a cylindrical component with high connection tightness and corrosion resistance, allowing the connecting cable 2 to be tightly connected to the extension cable 5. Both the connecting cable 2 and the extension cable 5 are polyurethane-specific cables with excellent waterproof properties, facilitating signal transmission. A sensor 16 is installed at the bottom of the extension cable 5. The sensor 16 measures the liquid level by sensing the hydrostatic pressure of the liquid and converting it into an electrical signal. A steel cylinder 6 is located below the signal processing unit 1, extending into the water. The sensor 16 can be placed inside the steel cylinder 6. Water from the reservoir enters the steel cylinder 6 through two inlets 12, immersing the sensor 16 in the water for monitoring. The sensor 16 is equipped with a first suspension block 17 on the outer surface of the extension cable 5 above it. A second suspension block 19 is installed on one side of the first suspension block 17. A counterweight 15 is installed at the bottom of both the first suspension block 17 and the second suspension block 19. The first suspension block 17 and the second suspension block 19 work together with the counterweight 15 to counteract the weight of the counterweight 15. When the torques of the two are balanced, the sensor 16 can be stabilized in the middle layer of water. A first support plate 7 is installed at the bottom of the signal processing unit 1. A first frame 8 is sleeved on one end of the first support plate 7. A second support plate 11 is installed at the top of the steel cylinder 6. A second frame 10 is sleeved on one end of the second support plate 11. The first support plate 7 can extend and retract at one end of the first frame 8. The second support plate 11 can extend and retract at one end of the second frame 10. The signal processing unit 1 and the steel cylinder 6 are extended outward from the concrete of the reservoir and installed at a predetermined position.

[0022] Specifically, a winding member 4 is installed at the top of the extension cable 5. A motor 9 is installed at one end of the winding member 4, and a telescopic rod 21 is installed at one end of the motor 9. One end of the telescopic rod 21 is installed on the outer surface of the first frame 8. The output end of the motor 9 is connected to the winding member 4 through a one-way bearing. When the sensor 16 moves downward, it pulls the winding member 4, causing the extension cable 5 to unwind. When the sensor 16 moves upward, the top of the extension cable 5 moves upward. The motor 9 can be remotely monitored and controlled to rotate the winding member 4 and wind the top of the extension cable 5 onto the outer surface of the winding member 4.

[0023] Furthermore, two screws 14 are provided at the top of the first support plate 7 and the second support plate 11. The first sleeve 8 and the second sleeve 10 are both L-shaped. The top of the first sleeve 8 and the second sleeve are provided with long slots that match the screws 14. The top of the screws 14 extends out of the long slots. The bent ends of the first sleeve 8 and the second sleeve 10 are installed on the concrete surface of the reservoir, so that the signal processing unit 1 and the steel cylinder 6 are fixed above the water surface of the reservoir. The bottom end of the steel cylinder 6 extends into the water. The screws 14 and the water tank are used in conjunction to limit the first support plate 7 and the second support plate 11 respectively. The first support plate 7 and the second support plate 11 can be extended and retracted at one end of the first sleeve 8 and the second sleeve 10 to adjust the extension length. The top of the screw 14 is equipped with a nut, which locks the support plate by contacting the sleeve, ensuring that the bottom of the steel cylinder 6 can extend into the water.

[0024] Furthermore, water inlets 12 are provided on both sides of the steel cylinder 6, and flange rings are provided at the top and bottom of the steel cylinder 6. A conical bottom 13 is detachably installed at the bottom of the steel cylinder 6. For reservoirs of different depths, multiple steel cylinders 6 can be connected to ensure that the sensor 16 can be lowered inside the steel cylinder 6 so that the sensor 16 is located in the middle layer of water.

[0025] Furthermore, each of the first suspension block 17 and the second suspension block 19 is provided with a mounting block 18 at its top. The two mounting blocks 18 are matched with the extension cable 5. A locking member 20 is installed at the top of any one of the mounting blocks 18. The first suspension block 17 and the second suspension block 19 are fixed together by the mounting blocks 18 and are sleeved on the outer surface of the extension cable 5. The locking member 20 is a screw structure. Twisting the screw causes the screw to move in the direction of the extension cable 5. One end of the screw contacts the extension cable 5, locking the first suspension block 17 and the second suspension block 19.

[0026] Furthermore, the sensor 16 extends into the steel cylinder 6, and the sensor 16 is protected by the steel cylinder 6 to prevent turbulent water currents from impacting the sensor 16 and to ensure monitoring accuracy.

[0027] The usage method of this embodiment is as follows: Using a reservoir level gauge, select multiple steel cylinders 6 and connect them end to end according to the current water level of the reservoir. Install a conical bottom 13 at the bottom end of the lowest steel cylinder 6 to isolate the bottom silt. Then, select an extension cable 5 of appropriate length and connect it to the connecting cable 2. After assembly, adjust the extension length of the first support plate 7 and the second support plate 11 at one end of the first frame 8 and the second frame 10. After adjusting to the appropriate extension length, lock the support plate by contacting the frame with the nut. Install the bent ends of the first frame 8 and the second frame 10 into the concrete of the reservoir. The steel cylinder 6 is placed on the soil surface to ensure that the bottom of the steel cylinder 6 can extend into the water. A first suspension block 17 and a second suspension block 19 are installed on the outer surface of the extension cable 5 above the sensor 16. The sensor 16 is placed inside the steel cylinder 6 so that the sensor 16 is immersed in the water. The first suspension block 17 and the second suspension block 19 work together with the counterweight 15. The first suspension block 17 and the second suspension block 19 counteract the weight of the counterweight 15. When the torques of the two are balanced, the sensor 16 can be stabilized in the water layer. The sensor 16 is protected by the steel cylinder 6 to prevent turbulent currents in the water from impacting the sensor 16 and to ensure monitoring accuracy.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. An adjustable reservoir level gauge, comprising a signal processing unit (1), characterized in that: The signal processing unit (1) is provided with a connecting cable (2) at its bottom end. The connecting cable (2) is provided with an aviation plug (3) at its bottom end. An extension cable (5) is detachably installed at the bottom end of the aviation plug (3). A sensor (16) is installed at the bottom end of the extension cable (5). A steel cylinder (6) is provided below the signal processing unit (1). A first suspension block (17) is installed on the outer surface of the extension cable (5) above the sensor (16). A second suspension block (19) is installed on one side of the first suspension block (17). A counterweight (15) is installed at the bottom end of both the first suspension block (17) and the second suspension block (19). A first support plate (7) is installed at the bottom end of the signal processing unit (1). A first sleeve (8) is sleeved on one end of the first support plate (7). A second support plate (11) is installed on the top end of the steel cylinder (6). A second sleeve (10) is sleeved on one end of the second support plate (11).

2. The adjustable reservoir level gauge according to claim 1, characterized in that: The top of the extension cable (5) is equipped with a winding member (4), one end of which is equipped with a motor (9), and one end of which is equipped with a telescopic rod (21). One end of the telescopic rod (21) is installed on the outer surface of the first frame (8).

3. The adjustable reservoir level gauge according to claim 1, characterized in that: The top of the first support plate (7) and the second support plate (11) are provided with two screws (14). The first frame (8) and the second frame (10) are both L-shaped. The top of the first frame (8) and the second frame (10) are provided with long grooves that match the screws (14). The top of the screws (14) extends out of the long grooves.

4. The adjustable reservoir level gauge according to claim 1, characterized in that: The steel cylinder (6) has water inlets (12) on both sides, flange rings on the top and bottom of the steel cylinder (6), and a conical bottom (13) detachably installed on the bottom of the steel cylinder (6).

5. The adjustable reservoir level gauge according to claim 1, characterized in that: The top of the first suspension block (17) and the second suspension block (19) are provided with mounting blocks (18), and the two mounting blocks (18) are matched with the extension cable (5). A locking member (20) is installed on the top of any one of the mounting blocks (18).

6. The adjustable reservoir level gauge according to claim 1, characterized in that: The sensor (16) extends into the interior of the steel cylinder (6).

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