High-precision water level measuring instrument

Abstract

The utility model relates to the technical field of water level measurement, in particular to a high-precision water level measuring instrument which comprises a bottom cover in threaded connection with the lower end of a sensor body, a plurality of through holes are formed in the bottom cover and communicated with the sensor body, a first filtering assembly is arranged outside the bottom cover, and second filtering assemblies are arranged in the through holes. Before the filter is placed in liquid for use, an operator firstly installs the first filter assembly outside the bottom cover and then installs the second filter assembly in the through hole, so that when the filter is immersed in the liquid for measurement, large-particle impurities, precipitates and the like in the liquid are firstly filtered outside by the first filter assembly, and then the impurities are filtered out by the second filter assembly; small impurities and the like can be filtered outside by the second filtering assembly, so that the sensor probe is greatly prevented from being blocked, the measurement precision is improved, the use effect is enhanced, in addition, impurities are not cleaned frequently any more, only the filtering device needs to be cleaned, and the device is simple in structure, convenient and practical.

Description

Technical Field

[0001] The utility model relates to a measuring instrument, in particular to a high-precision water level measuring instrument, belonging to the technical field of water level measurement. Background Art

[0002] A water level meter is an instrument used to measure water level height. It is usually used in water conservancy, hydropower, hydrology and other fields. It can detect changes in water levels through various sensors and transmit data to a display or control system. There are many types of water level meters, such as float water level gauges, pressure water level gauges, ultrasonic water level gauges, radar water level gauges, etc. Each type has its own unique advantages and scope of application.

[0003] Among them, the immersion water level measuring instrument is a high-precision liquid level measuring instrument and also a pressure sensor for measuring liquid level. Its principle is to determine the liquid level by measuring the pressure at the bottom of the liquid. Specifically, when the water level meter is immersed in the liquid, its bottom will be subjected to the pressure of the liquid, and this pressure is proportional to the height of the liquid. By measuring this pressure, the water level meter can calculate the height of the liquid, thereby realizing the measurement of the liquid level. However, when the existing immersion water level measuring instrument is in use, the probe is directly immersed in the liquid, which is easily disturbed by factors such as debris and sediment in the liquid, causing the probe hole to be blocked, affecting the measurement accuracy, thereby affecting the use effect of the water level measuring instrument.

[0004] Therefore, it is urgent to improve the high-precision water level measuring instrument to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a high-precision water level measuring instrument. Before putting it into liquid for use, the operator first installs the first filter component on the outside of the bottom cover, and then installs the second filter component in the through hole. In this way, when immersed in liquid for measurement, firstly, large particles of debris, sediments, etc. in the liquid will be filtered on the outside by the first filter component, and then smaller debris will be filtered on the outside by the second filter component. In this way, the blockage of the sensor probe hole is greatly avoided, the measurement accuracy is improved, and the use effect is enhanced. In addition, cleaning of debris is no longer frequent, which increases labor. If cleaning is required, it is only necessary to unscrew the support column to clean the filter device. The structure is simple, convenient and practical.

[0006] In order to achieve the above-mentioned purpose, the main technical scheme adopted by the utility model includes: comprising a bottom cover and a sensor body, the bottom cover is threadedly connected to the lower end of the sensor body, a plurality of through holes are opened on the bottom cover, and the plurality of through holes are connected to the sensor body, a first filter component for the first filtering of large particles of debris is provided on the outside of the bottom cover, a second filter component for secondary filtration is provided in the through hole, the second filter component comprises a filter cartridge and an auxiliary cover, the filter cartridge is adapted to and connected to the through hole, and both ends of the filter cartridge pass through the through hole, one end of the filter cartridge is fixedly connected to the auxiliary cover, and the filter cartridge is movably connected to the through hole.

[0007] Preferably, the first filter assembly includes a plurality of filter screens and a filter frame, and the plurality of filter screens are fixedly connected to the filter frame.

[0008] Preferably, a fixing column is fixedly connected to the bottom of the bottom cover, and one end of the fixing column away from the bottom cover is threadedly connected to a supporting column.

[0009] Preferably, a cover sleeve is slidably connected to the outer side wall of the bottom cover.

[0010] Preferably, the filter frame includes an upper horizontal filter frame, a vertical filter frame and a lower horizontal filter frame, the upper horizontal filter frame is fixedly connected to the top of the vertical filter frame, the bottom of the vertical filter frame is fixedly connected to the lower horizontal filter frame, and the lower horizontal filter frame is parallel to the upper horizontal filter frame.

[0011] Preferably, the upper horizontal filter frame is fixedly connected to the outer side wall of the cover sleeve, and the lower horizontal filter frame is fixedly connected to the outer side wall of the support column.

[0012] Preferably, one end of the filter cartridge away from the auxiliary cover contacts the filter screen, one end of the filter cartridge close to the auxiliary cover penetrates the filter screen and extends to the outside, and the auxiliary cover is snap-fitted with the filter screen.

[0013] Preferably, a protective pad is sleeved on the upper end of the sensor body, and a cable is electrically connected inside the sensor body, and one end of the cable passes through the sensor body and the protective pad and extends to the outside.

[0014] The utility model has at least the following beneficial effects:

[0015] 1. Before putting it into the liquid for use, the operator first installs the first filter component on the outside of the bottom cover, and then installs the second filter component in the through hole. In this way, when immersed in the liquid for measurement, firstly, large particles of debris, sediments, etc. in the liquid will be filtered on the outside by the first filter component, and then smaller debris will be filtered on the outside by the second filter component. This greatly avoids the blockage of the sensor probe hole, improves the measurement accuracy, and enhances the use effect. In addition, cleaning of debris is no longer frequent, which increases labor. If you need to clean it, you only need to unscrew the support column to clean the filter device. The structure is simple, convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 An isometric structural schematic diagram provided for the utility model;

[0018] Figure 2 A front view provided for the utility model;

[0019] Figure 3 A partial structural schematic diagram provided for the utility model;

[0020] Figure 4 This is a partial structural exploded diagram provided by the utility model.

[0021] In the figure, 1. bottom cover; 2. sensor body; 3. through hole; 4. first filter assembly; 5. second filter assembly; 6. filter cartridge; 7. auxiliary cover; 8. filter screen; 9. filter frame; 10. fixing column; 11. supporting column; 12. cover sleeve; 13. upper horizontal filter frame; 14. vertical filter frame; 15. lower horizontal filter frame; 16. protective pad; 17. cable. DETAILED DESCRIPTION

[0022] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0023] like Figure 1-Figure 4As shown, the high-precision water level measuring instrument provided in this embodiment has a bottom cover 1 that is threadedly connected to the lower end of the sensor body 2, a plurality of through holes 3 are opened on the bottom cover 1, and the plurality of through holes 3 are connected to the sensor body 2. A first filter component 4 for the first filtering of large particles of debris is provided on the outside of the bottom cover 1, and a second filter component 5 for secondary filtering is provided in the through hole 3. The second filter component 5 includes a filter cartridge 6 and an auxiliary cover 7. The filter cartridge 6 is adapted to and connected to the through hole 3, and both ends of the filter cartridge 6 pass through the through hole 3, one end of the filter cartridge 6 is fixedly connected to the auxiliary cover 7, and the filter cartridge 6 is movably connected to the through hole 3.

[0024] Among them, Figure 1-Figure 4 As shown, the first filter assembly 4 includes a plurality of filter screens 8 and a filter frame 9 , and the plurality of filter screens 8 are fixedly connected to the filter frame 9 .

[0025] Further, such as Figure 1-Figure 4 As shown, a fixing column 10 is fixedly connected to the bottom of the bottom cover 1, and a support column 11 is threadedly connected to the end of the fixing column 10 away from the bottom cover 1. A cover sleeve 12 is slidably connected to the outer wall of the bottom cover 1, and the cover sleeve 12 is movably connected to the bottom cover 1. When the support column 11 is manually rotated, the cover sleeve 12 is rotationally and slidably connected to the bottom cover 1. The filter frame 9 includes an upper horizontal filter frame 13, a vertical filter frame 14 and a lower horizontal filter frame 15. The upper horizontal filter frame 13 is fixedly connected to the top of the vertical filter frame 14, and the bottom of the vertical filter frame 14 is fixedly connected to the lower horizontal filter frame 15. The lower horizontal filter frame 15 is parallel to the upper horizontal filter frame 13.

[0026] Furthermore, if Figure 1-Figure 4 As shown, the horizontal filter frame 13 is fixedly connected to the outer wall of the cover sleeve 12, the lower horizontal filter frame 15 is fixedly connected to the outer wall of the support column 11, the end of the filter cartridge 6 away from the auxiliary cover 7 is in contact with the filter screen 8, the end of the filter cartridge 6 close to the auxiliary cover 7 passes through the filter screen 8 and extends to the outside, and the auxiliary cover 7 is snap-connected with the filter screen 8.

[0027] Before putting it into the liquid for use, the operator manually slides the cover sleeve 12 onto the bottom cover 1, then tightens the support column 11 clockwise onto the fixing column 10, and finally passes the filter cartridge 6 through the outside of the filter screen 8, then enters the through hole 3 and penetrates its outside until it contacts the filter screen 8, and finally snaps the auxiliary cover 7 into the filter screen 8. When disassembly is required, it is necessary to first take out the second filter assembly 5 for cleaning, and then rotate the support column 11 counterclockwise, and then drive the first filter assembly 4 and the cover to slide downward along the central axis of the bottom cover 1, and finally take out the first filter assembly 4. The filter mesh holes of the second filter assembly 5 are much smaller than the filter mesh holes of the first filter assembly 4.

[0028] Furthermore, if Figure 1-Figure 4 As shown, a protective pad 16 is sleeved on the upper end of the sensor body 2, and a cable 17 is electrically connected inside the sensor body 2, and one end of the cable 17 passes through the sensor body 2 and the protective pad 16 and extends to the outside.

[0029] like Figure 1-Figure 4 As shown, the principle of the high-precision water level measuring instrument provided in this embodiment is as follows: before putting it into the liquid for use, the operator manually slides the cover sleeve 12 onto the bottom cover 1, and then tightens the support column 11 clockwise on the fixing column 10, and finally passes the filter cartridge 6 through the outside of the filter screen 8, and then enters the through hole 3 and penetrates its outside until it contacts the filter screen 8, and finally snaps the auxiliary cover 7 into the filter screen 8. When disassembly is required, it is necessary to first take out the second filter assembly 5 for cleaning, and then rotate the support column 11 counterclockwise, and then drive the first filter assembly 4 and the cover to slide downward along the central axis of the bottom cover 1, and finally take out the first filter assembly 4.

[0030] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0031] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

Claims

1. A high-precision water level measuring instrument, comprising a bottom cover (1) and a sensor body (2), characterized in that: The bottom cover (1) is threadedly connected to the lower end of the sensor body (2); a plurality of through holes (3) are formed on the bottom cover (1); a plurality of the through holes (3) are connected to the sensor body (2); a first filter assembly (4) for filtering large particles of debris is provided on the outside of the bottom cover (1); a second filter assembly (5) for secondary filtering is provided in the through hole (3); the second filter assembly (5) comprises a filter cartridge (6) and an auxiliary cover (7); the filter cartridge (6) is adapted to and connected to the through hole (3); both ends of the filter cartridge (6) pass through the through hole (3); one end of the filter cartridge (6) is fixedly connected to the auxiliary cover (7); and the filter cartridge (6) is movably connected to the through hole (3).

2. A high-precision water level measuring instrument according to claim 1, characterized in that: The first filter assembly (4) comprises a plurality of filter screens (8) and a filter frame member (9), and the plurality of filter screens (8) are fixedly connected to the filter frame member (9).

3. A high-precision water level measuring instrument according to claim 2, characterized in that: A fixing column (10) is fixedly connected to the bottom of the bottom cover (1), and one end of the fixing column (10) away from the bottom cover (1) is threadedly connected to a supporting column (11).

4. A high-precision water level measuring instrument according to claim 3, characterized in that: A cover sleeve (12) is slidably connected to the outer side wall of the bottom cover (1).

5. A high-precision water level measuring instrument according to claim 4, characterized in that: The filter frame member (9) comprises an upper horizontal filter frame (13), a vertical filter frame (14) and a lower horizontal filter frame (15); the upper horizontal filter frame (13) is fixedly connected to the top of the vertical filter frame (14); the bottom of the vertical filter frame (14) is fixedly connected to the lower horizontal filter frame (15); and the lower horizontal filter frame (15) is parallel to the upper horizontal filter frame (13).

6. A high-precision water level measuring instrument according to claim 5, characterized in that: The upper horizontal filter frame (13) is fixedly connected to the outer side wall of the cover sleeve (12), and the lower horizontal filter frame (15) is fixedly connected to the outer side wall of the support column (11).

7. A high-precision water level measuring instrument according to claim 2, characterized in that: One end of the filter cartridge (6) away from the auxiliary cover (7) contacts the filter screen (8), and one end of the filter cartridge (6) close to the auxiliary cover (7) penetrates the filter screen (8) and extends to the outside, and the auxiliary cover (7) is snap-connected with the filter screen (8).

8. A high-precision water level measuring instrument according to claim 1, characterized in that: The upper end of the sensor body (2) is sleeved with a protective pad (16), and the interior of the sensor body (2) is electrically connected to a cable (17), one end of the cable (17) passes through the sensor body (2) and the protective pad (16) and extends to the outside.

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