A maintenance-free water level monitoring and protection device for field reservoirs

Abstract

The present invention relates to a maintenance-free water level monitoring and protection device for outdoor water reservoirs, comprising an inner cover and an outer cover. The inner cover is a hollow spherical structure. The upper end of the inner cover is provided with an inner cover flange A. A fixed sleeve is provided inside the inner cover flange A. The fixed sleeve is coaxially fixed with a liquid level gauge, and the measuring end of the liquid level gauge is located at the center of the inner cover. The side wall of the inner cover is provided with multiple groups of water permeable holes A. The outer cover is a hemispherical thin-walled structure. The two outer covers are fitted on the outside of the inner cover. The side wall of the outer cover is provided with multiple groups of water permeable holes B. The outer cover and the inner cover can rotate relative to each other so that the water permeable holes A and the water permeable holes B can overlap or stagger. The present invention can encapsulate the existing liquid level sensor as a whole, ensuring that the liquid level gauge is isolated from impurities in the water body without interfering with its normal operation. The water permeable holes of the protective device can effectively filter impurities without affecting the normal entry and exit of liquid, thereby avoiding affecting its water pressure. This method can ensure that the liquid level sensor is maintenance-free for a long time.

Description

Technical Field

[0001] The invention relates to the technical field of field liquid level monitoring, in particular to a maintenance-free water level monitoring and protection device for a field water reservoir. Background Art

[0002] Water levels are typically measured using a level gauge. Existing level gauges are mostly used in water tanks, oil pipelines, and indoor pools. These pools are typically clean and easy to maintain, so these level gauges utilize a small hole at the measuring end to monitor water pressure. In these scenarios, the level gauges must be cleaned monthly to ensure proper operation.

[0003] The traditional method of use involves immersing the level gauge directly in water and removing it from the measured liquid once a month for cleaning. Therefore, the liquid being monitored must be relatively clean, free of granular solid impurities, and requires periodic maintenance. Traditionally, level gauges are typically installed vertically. Because the level gauge itself is a rigid cylindrical joint, the measuring end is the effective starting point for measurement. If the level gauge is placed at an angle in the liquid, measurement errors can be significant.

[0004] However, forest fires are frequent in my country. To facilitate timely firefighting, many outdoor reservoirs have been built in high-risk counties. These reservoirs are mostly located in mountainous or forested areas with limited access, resulting in high daily management and maintenance costs. Therefore, water level monitoring is necessary. When the water level drops below a certain threshold, timely replenishment is required to prevent a lack of water in the event of a fire. These reservoirs are generally crudely constructed, and because they are located in a wild environment, they often experience large amounts of sediment washed into them by rain. Over time, the silt at the bottom of the reservoir becomes thick, which can affect the performance of the level meter and, in severe cases, render it inoperable. These reservoirs are generally large in size, with a certain slope at the edge. The effective measurement position is generally far from the edge, and suspended installation is not possible. Therefore, the level meter must be submerged in the water at a certain distance from the shore, and the distance between the measuring end and the bottom of the reservoir must be kept constant. Summary of the Invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a maintenance-free water level monitoring and protection device for field water reservoirs.

[0006] The purpose of the present invention is achieved through the following technical solutions:

[0007] A maintenance-free water level monitoring and protection device for outdoor water reservoirs, comprising an inner cover and an outer cover, wherein the inner cover is a hollow spherical structure, an inner cover flange A is provided at the upper end of the inner cover, a fixed sleeve is provided on the inner side of the inner cover flange A, the fixed sleeve is coaxially fixed with a liquid level gauge, and the measuring end of the liquid level gauge is located at the center of the sphere of the inner cover, a plurality of groups of water permeable holes A are provided on the side wall of the inner cover, and the outer cover is a hemispherical thin-walled structure, two outer covers are fitted on the outside of the inner cover, a plurality of groups of water permeable holes B are provided on the side wall of the outer cover, and the outer cover and the inner cover can rotate relative to each other so that the water permeable holes A and the water permeable holes B can overlap or stagger.

[0008] Furthermore, the liquid level meter is a immersion type liquid level meter.

[0009] Furthermore, an outer cover flange A is provided at the upper end of the outer cover, and a damping ring A is provided between the inner cover flange A and the outer cover flange A.

[0010] Furthermore, an inner cover flange B is provided at the lower end of the inner cover, an outer cover flange B is provided at the lower end of the outer cover, and a damping ring B is provided between the inner cover flange B and the outer cover flange B.

[0011] Furthermore, a plug is installed on the inner side of the inner cover flange B, the longitudinal section of the plug is a T-shaped structure, and the plug is pressed on the damping ring B.

[0012] Furthermore, the inner cover and the outer cover are both made of stainless steel.

[0013] Furthermore, the damping ring A and the damping ring B are both made of nylon.

[0014] Furthermore, the inner and outer surfaces of the inner cover and the outer cover are coated with a galvanized coating.

[0015] Furthermore, the outer diameter of the inner cover is equal to the inner diameter of the outer cover.

[0016] The present invention has the following advantages:

[0017] 1. The existing liquid level sensor can be encapsulated as a whole to ensure that it does not interfere with its normal operation and isolate the liquid level meter from impurities in the water body. The water-permeable holes of the protective device can effectively filter impurities without affecting the normal inflow and outflow of liquid, so as not to affect its water pressure. This method can ensure that the liquid level sensor is maintenance-free for a long time.

[0018] 2. The device has a spherical shape. After the level gauge is installed, the measuring end of the level gauge is exactly located at the center of the protective cover. When in use, the entire device can be put into the water. The placement of the entire device is not restricted by the measured scene, and the convenience of use is greatly improved. No matter what posture the level gauge is in, its height from the bottom of the pool is the radius of the sphere. When calculating the liquid level depth, the radius of the sphere can be compensated.

[0019] 3. The inner cover and the outer cover can rotate relative to each other, and they will overlap or misalign during the rotation process to control the actual water inlet hole size. This can not only ensure that the protective cover is connected to the external fluid without affecting the normal operation of the liquid level meter, but also adjust the flow hole size so that particulate impurities larger than the aperture size cannot interfere with the operation of the liquid level meter.

[0020] 4. The material of this device is rust-resistant and corrosion-resistant (stainless steel 304, stainless steel 316, galvanized coating treatment are all within the protection range), which can ensure long-term stable and reliable operation in harsh environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a schematic cross-sectional view of the present invention;

[0023] Figure 3 for Figure 2 A in the middle is an enlarged structural diagram;

[0024] Figure 4 for Figure 2 The enlarged structural diagram at B in the middle;

[0025] Figure 5 It is a schematic diagram of the explosion structure of the present invention;

[0026] In the figure: 1-inner cover, 2-outer cover, 3-liquid level gauge, 4-fixing sleeve, 5-damping ring A, 6-plug, 7-damping ring B, 8-water hole A, 9-water hole B. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0028] like Figures 1 to 5As shown, a maintenance-free water level monitoring and protection device for outdoor water reservoirs includes an inner cover 1 and an outer cover 2. The inner cover 1 is a hollow spherical structure. The upper end of the inner cover 1 is provided with an inner cover flange A. A fixing sleeve 4 is provided inside the inner cover flange A. The fixing sleeve 4 is coaxially fixed with a liquid level gauge 3, and the measuring end of the liquid level gauge 3 is located at the center of the sphere of the inner cover 1. No matter what posture the device is put into the water, its height from the bottom of the pool is the radius of the sphere. The side wall of the inner cover 1 The outer cover 2 has multiple sets of water-permeable holes A8. The outer cover 2 is a hemispherical, thin-walled structure. The two outer covers 2 are fitted onto the outside of the inner cover 1. In this embodiment, the outer diameter of the inner cover 1 is the same as the inner diameter of the outer cover 2, allowing the inner wall of the outer cover 2 to adhere tightly to the outer wall of the inner cover 1. The sidewalls of the outer cover 2 have multiple sets of water-permeable holes B9. The outer cover 2 and the inner cover 1 are relatively rotatable, allowing the water-permeable holes A8 and B9 to overlap or stagger. During monitoring, if the monitoring value of the liquid level gauge 3 is H and the outer diameter of the outer cover 2 is R, then the actual liquid level value is H+R.

[0029] Furthermore, the liquid level meter 3 is a immersion type liquid level meter.

[0030] Furthermore, the outer cover 2 has an outer cover flange A at its upper end, with a damping ring A5 positioned between the inner and outer cover flanges A. The inner cover 1 has an inner cover flange B at its lower end, and the outer cover 2 has an outer cover flange B at its lower end, with a damping ring B7 positioned between the inner and outer cover flanges B. Damping rings A5 and B7 ensure the connection between the inner and outer covers 1 and 2 while providing a certain degree of damping during relative rotation, preventing them from rotating freely relative to each other.

[0031] Furthermore, a plug 6 is installed on the inner side of the inner cover fold B, the longitudinal section of the plug 6 is a T-shaped structure, and the plug 6 is pressed on the damping ring B7.

[0032] Furthermore, the inner cover 1 and the outer cover 2 are both made of stainless steel, which can be 304 stainless steel and 316 stainless steel, to ensure that corrosion will not occur when used in harsh underwater environments and to avoid protection failure.

[0033] Furthermore, the damping ring A5 and the damping ring B7 are both made of nylon. Due to its natural hygroscopicity, when used in an underwater environment, the damping ring only has a tendency to expand, ensuring that the damping will not fail.

[0034] Furthermore, the inner and outer surfaces of the inner cover 1 and the outer cover 2 are coated with a galvanized coating, which further improves the corrosion resistance and can ensure long-term stable and reliable operation in harsh environments.

[0035] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A maintenance-free water level monitoring and protection device for a field reservoir, characterized by: The invention comprises an inner cover (1) and an outer cover (2), wherein the inner cover (1) is a hollow spherical structure, an inner cover flange A is provided at the upper end of the inner cover (1), a fixed sleeve (4) is provided on the inner side of the inner cover flange A, the fixed sleeve (4) is coaxially fixed with the liquid level gauge (3), and the measuring end of the liquid level gauge (3) is located at the spherical center of the inner cover (1), a plurality of water holes A (8) are provided on the side wall of the inner cover (1), the outer cover (2) is a hemispherical thin-walled structure, two outer covers (2) are fitted on the outer side of the inner cover (1), a plurality of water holes B (9) are provided on the side wall of the outer cover (2), the outer cover (2) and the inner cover (1) can rotate relative to each other so that the water holes A (8) and the water holes B (9) can overlap or stagger, and the material of the inner cover (1) and the outer cover (2) are both 304 stainless steel.

2. The maintenance-free water level monitoring and protection device for a field reservoir according to claim 1 is characterized in that: The liquid level meter (3) is a drop-in type liquid level meter.

3. The maintenance-free water level monitoring and protection device for a field reservoir according to claim 2 is characterized in that: An outer cover flange A is provided at the upper end of the outer cover (2), and a damping ring A (5) is provided between the inner cover flange A and the outer cover flange A.

4. The maintenance-free water level monitoring and protection device for a field reservoir according to claim 3 is characterized by: The lower end of the inner cover (1) is provided with an inner cover flange B, the lower end of the outer cover (2) is provided with an outer cover flange B, and a damping ring B (7) is provided between the inner cover flange B and the outer cover flange B.

5. The maintenance-free water level monitoring and protection device for a field reservoir according to claim 4 is characterized in that: A plug (6) is installed on the inner side of the inner cover fold B. The longitudinal section of the plug (6) is a T-shaped structure. The plug (6) is pressed on the damping ring B (7).

6. The maintenance-free water level monitoring and protection device for a field reservoir according to claim 4, characterized in that: The damping ring A (5) and the damping ring B (7) are both made of nylon.

7. The maintenance-free water level monitoring and protection device for a field reservoir according to claim 1 is characterized by: The inner and outer surfaces of the inner cover (1) and the outer cover (2) are both coated with a galvanized coating.

8. The maintenance-free water level monitoring and protection device for a field reservoir according to claim 1 is characterized by: The outer diameter of the inner cover (1) is equal to the inner diameter of the outer cover (2).

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