Liquid level sensor capable of preventing mud blockage

Abstract

The utility model discloses a liquid level sensor capable of preventing mud blockage, and particularly relates to a liquid level sensor which comprises a probe rod, inserting ring pieces distributed in a linear array are inserted on the outer wall of the probe rod, and a plurality of shielding plate pieces distributed in a circumferential array are fixedly installed on the outer walls of the inserting ring pieces. A gap is reserved between every two adjacent shielding plates, so that an overflowing groove is formed; and the non-woven geotextile wraps the outer sides of the plurality of baffle plates. According to the utility model, the problem that the detection sensitivity is reduced or misjudgment is caused due to the fact that slurry covers the detection end of the liquid level sensor is solved.

Description

Technical Field

[0001] This utility model relates to liquid level sensors, specifically to a liquid level sensor that prevents mud blockage. Background Technology

[0002] Liquid level sensors are used to detect the liquid level in storage containers. They are typically used in conjunction with control devices such as solenoid valves to control changes in the liquid interface inside the storage container.

[0003] Some equipment, such as water pumps, is equipped with level sensors to protect the equipment from damage caused by running it unloaded. However, during actual operation, mud can accumulate on the sensor's detection end, reducing its sensitivity or causing false readings. Utility Model Content

[0004] The purpose of this invention is to provide a liquid level sensor that prevents mud blockage, thereby solving the above-mentioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A level sensor for preventing mud blockage includes a probe rod, the outer wall of which is inserted with plug rings arranged in a linear array, and the outer walls of the plug rings are fixedly installed with a plurality of shielding plates arranged in a circumferential array, with a predetermined gap between two adjacent shielding plates to form a flow channel.

[0007] It also includes non-woven geotextiles, which are wrapped around the outside of multiple shielding panels.

[0008] Preferably, the plug ring is a plastic part, and its inner wall is fixedly provided with protrusions arranged in a circumferential array, with every two protrusions forming a water passage gap.

[0009] Preferably, the number of the plug-in rings is not less than three.

[0010] Preferably, the sidewall of the plug ring is fixedly provided with an extension, and the extensions coaxially distributed on the three plug rings are connected to the shielding plate as a whole.

[0011] Preferably, the two ends of the shielding plate are respectively provided with inclined portions extending toward the probe rod, and the length of the inclined portions is 2mm-3mm.

[0012] Preferably, the inclined portions are inclinedly distributed, and the inclined portions between two adjacent shielding plates are funnel structures, the funnel structure having a narrow opening and a wide opening, the narrow opening being adjacent to the probe rod.

[0013] In the above technical solution, the liquid level sensor provided by this utility model for preventing mud blockage has the following beneficial effects: mud and sand are blocked by non-woven geotextile, and then liquid penetrates into the interior of non-woven geotextile. Then, the liquid enters through the flow channel, so that the liquid level is detected by the probe rod, thereby solving the problem that mud will cover the detection end of the liquid level sensor, causing the detection sensitivity to decrease or misjudgment. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0016] Figure 2 Provided for the embodiments of this utility model Figure 1 A schematic diagram of the partial structure of the explosion;

[0017] Figure 3 A schematic diagram of the structure of the nonwoven geotextile and shielding plate provided in the embodiments of this utility model;

[0018] Figure 4 Provided for the embodiments of this utility model Figure 3 A partially enlarged structural diagram.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Probe rod; 2. Connecting ring; 21. Protrusion; 22. Water passage gap; 3. Baffle plate; 4. Flow channel; 5. Extension; 6. Inclined part; 7. Non-woven geotextile. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] like Figure 1-4 As shown, a level sensor for preventing mud blockage includes a probe rod 1. The outer wall of the probe rod 1 is inserted with a linear array of insertion rings 2. The outer walls of the multiple insertion rings 2 are fixedly installed with multiple shielding plates 3 arranged in a circular array, and there is a predetermined gap between two adjacent shielding plates 3 to form a flow channel 4.

[0023] It also includes non-woven geotextile 7, which is wrapped around the outside of multiple shielding panels 3.

[0024] Specifically, the non-woven geotextile 7 wraps around multiple shielding plates 3. The non-woven geotextile 7 is cylindrical, with one end open and the other end closed. The plug-in ring 2 and the shielding plate 3 are both plastic parts.

[0025] The number of the aforementioned plug-in ring 2 shall not be less than three.

[0026] In the above technology, the mud and sand are blocked by the non-woven geotextile 7, and then the liquid penetrates into the interior of the non-woven geotextile 7. The liquid then enters through the flow channel 4, so that the liquid level is detected by the probe 1. This solves the problem that mud will cover the detection end of the liquid level sensor, causing a decrease in detection sensitivity or misjudgment.

[0027] As a further embodiment of this utility model, combined with Figure 4 As shown, the plug-in ring 2 is specifically a plastic part, and its inner wall is fixedly provided with protrusions 21 distributed in a circumferential array, with every two protrusions 21 forming a water passage gap 22.

[0028] Specifically, the water gap 22 contacts the side wall of the probe rod 1. When the liquid enters the non-woven geotextile 7, it contacts the insertion ring 2 during the liquid rise. Then, because of the water gap 22, the probe rod 1 can normally detect the height of the liquid that has entered.

[0029] As a further embodiment of this utility model, combined with Figure 3 and Figure 4 As shown, the side wall of the plug ring 2 is fixedly provided with an extension 5, and the extensions 5 coaxially distributed on the three plug rings 2 are connected to the baffle plate 3 as a whole.

[0030] Specifically, the purpose of the extension 5 is to maintain a predetermined distance between the shielding plate 3 and the probe 1.

[0031] As another embodiment further provided by this utility model, combined with Figure 3 and Figure 4 As shown, the two ends of the shielding plate 3 are respectively provided with inclined portions 6 extending toward the probe rod 1, and the length of the inclined portions 6 is 2mm-3mm.

[0032] Furthermore, the inclined portion 6 is inclinedly distributed, and the inclined portion 6 between two adjacent shielding plates 3 is a funnel structure with a narrow opening and a wide opening, the narrow opening being adjacent to the probe rod 1.

[0033] Specifically, the liquid entering the interior through the nonwoven geotextile 7 will pass through the funnel structure, i.e., the flow channel 4, and enter the area between the baffle plate 3 and the probe 1. It should be noted that there will be a certain error between the liquid level inside and outside the nonwoven geotextile 7 in this embodiment, but this error is acceptable during the detection process of the probe 1.

[0034] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A level sensor for preventing mud blockage, comprising a probe (1), characterized in that, The outer wall of the probe (1) is fitted with a linear array of insertion rings (2), and a plurality of shielding plates (3) arranged in a circular array are fixedly installed on the outer wall of the plurality of insertion rings (2), and a predetermined gap is formed between two adjacent shielding plates (3) to form a flow channel (4). It also includes nonwoven geotextile (7), which is wrapped around the outside of multiple shielding panels (3).

2. The level sensor for preventing mud blockage according to claim 1, characterized in that, The plug ring (2) is specifically a plastic part, and its inner wall is fixedly provided with protrusions (21) arranged in a circumferential array, and every two protrusions (21) form a water passage gap (22).

3. A level sensor for preventing mud blockage according to claim 1, characterized in that, The number of the plug-in rings (2) is not less than three.

4. A level sensor for preventing mud blockage according to claim 1, characterized in that, The side wall of the plug ring (2) is fixedly provided with an extension (5), and the extensions (5) coaxially distributed on the three plug rings (2) are connected to the shielding plate (3) as a whole.

5. A level sensor for preventing mud blockage according to claim 1, characterized in that, The shielding plate (3) has inclined portions (6) extending toward the probe (1) at both ends.

6. A level sensor for preventing mud blockage according to claim 5, characterized in that, The length of the inclined portion (6) is 2mm-3mm.

7. A level sensor for preventing mud blockage according to claim 5, characterized in that, The inclined portion (6) is inclined, and the inclined portion (6) between two adjacent shielding plates (3) is a funnel structure. The funnel structure has a narrow opening and a wide opening, and the narrow opening is adjacent to the probe (1).

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