Steel ruler water level gauge capable of preventing well wall water flow interference

Abstract

The technical scheme relates to the field of hydrology and water resource equipment, in particular to a steel ruler water level gauge capable of preventing well wall water flow interference, which comprises a metal probe shell, and the rear end of the metal probe shell is fixedly connected with a steel ruler cable measuring rope; the end part of the front end of the metal probe shell is open, a plurality of side holes are uniformly formed in the side wall of the front end of the metal probe shell at intervals, the outer side of the front end of the metal probe shell is fixedly sleeved with a waterproof cover, the end part of the front end of the waterproof cover is open, and a plurality of air holes are formed in the waterproof cover. And the air holes and the side holes are arranged at intervals along the circumferential direction of the metal probe shell. The utility model has the beneficial effects that by arranging the waterproof cover, water flow on the well wall can be effectively prevented from entering the metal probe shell from the side hole to influence the detection of the detection probe, so that the accuracy of a detection result is improved; meanwhile, the vent holes can prevent air in the waterproof cover from being discharged and preventing the detection probe from being in contact with the underground water surface.

Description

Technical Field

[0001] This technical solution relates to the field of hydrological and water resources equipment, and in particular to a steel ruler water level gauge that prevents interference from water flow in well walls. Background Technology

[0002] In hydrogeological, engineering geological, and environmental geological surveys, single-well / well group pumping tests are crucial for obtaining aquifer hydrogeological parameters. During pumping tests, it is essential to record groundwater level changes accurately and promptly. This involves using a well level gauge to measure the initial water level in the pumping well, intermittently measuring the dynamic water level during pumping, the final water level after stabilization, and the drawdown of surrounding observation wells. Lowering the level gauge rope and reading the readings is the most direct and effective means of understanding the water level situation on-site. Subsequent calculations of hydrogeological parameters under different boundary conditions can effectively grasp the changes in groundwater in the area.

[0003] In existing technologies, a steel tape level gauge is typically deployed into the well, and the water level is measured using the gauge's probe. However, during actual operation, continuous pumping causes groundwater to splash, the wellhead hose may drip from loose connections, or small leaks in the pipes may cause water to spill. In these situations, the probe makes a sound even when it touches the water, leading to inaccurate dynamic water level measurements. Therefore, repeated testing is often necessary to ensure the accuracy of the results. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a steel ruler water level gauge that prevents interference from water flow on the well wall, which can effectively prevent water flow on the well wall from affecting the accuracy of the detection structure.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A steel tape level gauge to prevent interference from well wall water flow includes a metal probe housing, a steel tape cable measuring rope is fixedly connected to the rear end of the metal probe housing, and a detection probe is fixedly installed inside the front end of the metal probe housing; the front end of the metal probe housing is open, a plurality of side holes are evenly spaced on the front side wall of the metal probe housing, a waterproof cover is fixedly fitted on the outer side of the front end of the metal probe housing, the front end of the waterproof cover is open, and a plurality of vent holes are provided on the waterproof cover, the vent holes and the side holes are spaced apart along the circumference of the metal probe housing.

[0006] The beneficial effects of this utility model are: by setting a waterproof cover, it can effectively prevent water from flowing from the well wall into the metal probe housing through the side hole and affecting the detection of the detection probe, thereby improving the accuracy of the detection results; at the same time, the setting of the vent hole can prevent the air inside the waterproof cover from being unable to escape and thus preventing the detection probe from contacting the groundwater surface.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the rear end of the waterproof cover is fixedly connected to the outer wall of the metal probe housing, and the middle inner wall and the front inner wall of the waterproof cover are spaced apart from the outer wall of the metal probe housing.

[0009] The beneficial effect of adopting the above-mentioned further solution is that an exhaust channel is formed between the middle and front inner wall of the waterproof cover and the outer wall of the metal probe housing, so that the air inside the metal probe housing can be smoothly discharged, and the groundwater in the well can be smoothly entered from the front end of the metal probe housing, thereby realizing the detection of water level.

[0010] Furthermore, the waterproof cover is funnel-shaped with an inner diameter that gradually increases from the rear end to the front end.

[0011] The advantages of adopting the above-mentioned further solution are: the waterproof cover adopts a funnel-shaped structure, which is convenient to manufacture and facilitates the formation of an exhaust channel.

[0012] Furthermore, the waterproof cover has a cylindrical structure, and a connecting part is fixedly provided on the inner wall of the rear end of the waterproof cover. The connecting part is abutted and fixed to the outer wall of the metal probe housing.

[0013] The beneficial effects of adopting the above-mentioned further solution are: the waterproof cover adopts a straight cylindrical structure, and the rear end is fixed to the outer wall of the metal probe shell through the connecting part, and then the connecting part is connected by welding the connecting part.

[0014] Furthermore, the rear end of the waterproof cover is fixedly connected to the outer wall of the metal probe housing by welding.

[0015] The beneficial effects of adopting the above-mentioned further solution are: the rear end of the waterproof cover is fixedly connected to the metal probe shell by welding, ensuring the strength of the fixed connection and improving the service life.

[0016] Furthermore, the rear end of the waterproof cover is detachably and fixedly connected to the outer wall of the metal probe housing.

[0017] The advantages of adopting the above-mentioned further solution are: the waterproof cover and the metal probe housing are connected by a detachable connection, which makes installation and disassembly convenient.

[0018] Furthermore, the metal probe housing has a cylindrical structure, the inner wall of the rear end of the waterproof cover is provided with internal threads, and the outer wall of the metal probe housing is provided with external threads. The internal threads and the external threads are detachably and fixedly connected by threads.

[0019] The advantages of adopting the above-mentioned further solution are: the waterproof cover and the metal probe housing are connected by threads for easy installation and disassembly.

[0020] Furthermore, the outer wall of the metal probe housing is provided with multiple arc-shaped protrusions, and the inner wall of the rear end of the waterproof cover is provided with multiple arc-shaped grooves that match the arc-shaped protrusions. The arc-shaped protrusions are fitted into the arc-shaped grooves one by one.

[0021] The advantages of adopting the above-mentioned further solution are: the metal probe housing is connected to the waterproof cover by means of arc-shaped protrusion and arc-shaped groove, which makes installation and disassembly convenient and facilitates the positioning of the ventilation hole and side hole.

[0022] Furthermore, the outer wall of the metal probe housing is provided with several limiting grooves, and the rear end of the waterproof cover is provided with a limiting threaded hole that matches the limiting groove. A limiting bolt is threaded into the limiting threaded hole, and the head of the limiting bolt is located in the limiting groove.

[0023] The advantages of adopting the above-mentioned further solution are: by inserting the limiting bolt into the limiting groove, the waterproof cover and the metal probe shell can be aligned and connected, making installation and disassembly convenient.

[0024] Furthermore, a limiting protrusion is provided on the outer wall of the metal probe housing, and the rear end of the waterproof cover abuts against the side wall of the limiting protrusion.

[0025] The beneficial effects of adopting the above-mentioned further solution are: the setting of the limiting protrusion ring can limit the installation position of the waterproof cover on the one hand, and prevent water on the outer wall of the rear end of the metal probe housing from flowing from the gap between the rear end of the waterproof cover and the metal probe housing to the front end of the metal probe housing on the other hand, thereby avoiding water from flowing into the metal probe housing from the side hole and affecting the detection results of the detection probe. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a cross-sectional view of the connection between the metal probe housing and the waterproof cover in Embodiment 1 of this utility model;

[0028] Figure 3 This is a cross-sectional view of the connection between the metal probe housing and the waterproof cover in Embodiment 2 of this utility model;

[0029] Figure 4 This is a cross-sectional view of the connection between the metal probe housing and the waterproof cover in Embodiment 3 of this utility model;

[0030] Figure 5 This is a cross-sectional view of the connection between the metal probe housing and the waterproof cover in Embodiment 4 of this utility model;

[0031] Figure 6 This is a cross-sectional view of the connection between the metal probe housing and the waterproof cover in Embodiment 5 of this utility model;

[0032] Figure 7 This is a cross-sectional view of the connection between the metal probe housing and the waterproof cover in Embodiment Six of this utility model;

[0033] The attached diagram lists the components represented by each number as follows:

[0034] 1. Metal probe housing; 2. Steel ruler cable measuring rope; 3. Side hole; 4. Waterproof cover; 5. Ventilation hole; 6. Connecting part; 7. Internal thread; 8. External thread; 9. Arc-shaped protrusion; 10. Arc-shaped groove; 11. Limiting groove; 12. Limiting threaded hole; 13. Limiting bolt; 14. Limiting protrusion ring. Detailed Implementation

[0035] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0036] like Figure 1 As shown, this utility model discloses a steel ruler water level gauge to prevent interference from well wall water flow. It includes a metal probe housing 1, with a steel ruler cable measuring rope 2 fixedly connected to the rear end of the metal probe housing 1. A detection probe is fixedly installed inside the front end of the metal probe housing 1. The front end of the metal probe housing 1 is open, and multiple side holes 3 are evenly spaced on the front side wall of the metal probe housing 1. A waterproof cover 4 is fixedly fitted onto the outer side of the front end of the metal probe housing 1. The front end of the waterproof cover 4 is open, and the waterproof cover 4 has several vent holes 5, which are spaced apart from the side holes 3 along the circumference of the metal probe housing 1. By setting the waterproof cover 4, water flow from the well wall can be effectively prevented from entering the metal probe housing 1 through the side holes 3, thus preventing it from affecting the detection of the detection probe and improving the accuracy of the detection results. Simultaneously, the vent holes 5 prevent air from being trapped inside the waterproof cover 4, thus preventing the detection probe from contacting the groundwater surface.

[0037] The rear end of the waterproof cover 4 is fixedly connected to the outer wall of the metal probe housing 1. The middle inner wall and the front inner wall of the waterproof cover 4 are spaced apart from the outer wall of the metal probe housing 1. The middle and front inner walls of the waterproof cover 4 are spaced apart from the outer wall of the metal probe housing 1 to form an exhaust channel, so that the air inside the metal probe housing 1 can be smoothly discharged, and the groundwater in the well can smoothly enter from the front end of the metal probe housing 1, thereby realizing the detection of water level.

[0038] Example 1

[0039] like Figure 2As shown, this embodiment includes a metal probe housing 1, with a steel ruler cable measuring rope 2 fixedly connected to the rear end of the metal probe housing 1, and a detection probe fixedly installed inside the front end of the metal probe housing 1; the front end of the metal probe housing 1 is open, and a plurality of side holes 3 are evenly spaced on the front side wall of the metal probe housing 1; a waterproof cover 4 is fixedly fitted on the outer side of the front end of the metal probe housing 1, the front end of the waterproof cover 4 is open, and a plurality of vent holes 5 are provided on the waterproof cover 4, with the vent holes 5 and the side holes 3 spaced apart along the circumference of the metal probe housing 1.

[0040] The rear end of the waterproof cover 4 is fixedly connected to the outer wall of the metal probe housing 1. The middle inner wall and the front inner wall of the waterproof cover 4 are spaced apart from the outer wall of the metal probe housing 1. The middle and front inner walls of the waterproof cover 4 are spaced apart from the outer wall of the metal probe housing 1 to form an exhaust channel, so that the air inside the metal probe housing 1 can be smoothly discharged, and the groundwater in the well can smoothly enter from the front end of the metal probe housing 1, thereby realizing the detection of water level.

[0041] An electrode holder is fixed inside the waterproof cover 4. Two electrodes (detection probes) are fixed at the front end of the electrode holder, and two wires are electrically connected to the rear ends of the two electrodes. The wires are located inside the steel ruler cable measuring rope 2, which serves as the outer insulating layer of the wires. Markings are set on the outside of the steel ruler cable measuring rope 2, allowing it to be used as a ruler. When the water level gauge comes into contact with the water at the bottom of the well, causing both electrodes to simultaneously touch the water surface, the water conducts electricity, connecting the two electrodes to form a circuit, and the water level gauge will emit a buzzer to indicate this.

[0042] The outer wall of the metal probe housing 1 is provided with a limiting protrusion ring 14. The rear end of the waterproof cover 4 abuts against the side wall of the limiting protrusion ring 14. The limiting protrusion ring 14 can limit the installation position of the waterproof cover 4 on the one hand, and prevent water on the rear outer wall of the metal probe housing 1 from flowing from the gap between the rear end of the waterproof cover 4 and the metal probe housing 1 to the front end of the metal probe housing 1 on the other hand, thereby avoiding water from flowing into the metal probe housing 1 from the side hole 3 and affecting the detection results of the detection probe.

[0043] In this embodiment, the waterproof cover 4 is a funnel shape with an inner diameter that gradually increases from the rear end to the front end, and the metal probe housing 1 is a cylindrical structure. The inner wall of the rear end of the waterproof cover 4 is provided with an internal thread 7, and the outer wall of the metal probe housing 1 is provided with an external thread 8. The internal thread 7 and the external thread 8 are detachably fixedly connected by threads. The waterproof cover 4 and the metal probe housing 1 are detachably connected by threads, making installation and disassembly convenient.

[0044] Example 2

[0045] like Figure 3 As shown, this embodiment includes a metal probe housing 1, with a steel ruler cable measuring rope 2 fixedly connected to the rear end of the metal probe housing 1, and a detection probe fixedly installed inside the front end of the metal probe housing 1; the front end of the metal probe housing 1 is open, and a plurality of side holes 3 are evenly spaced on the front side wall of the metal probe housing 1; a waterproof cover 4 is fixedly fitted on the outer side of the front end of the metal probe housing 1, the front end of the waterproof cover 4 is open, and a plurality of vent holes 5 are provided on the waterproof cover 4, with the vent holes 5 and the side holes 3 spaced apart along the circumference of the metal probe housing 1.

[0046] The rear end of the waterproof cover 4 is fixedly connected to the outer wall of the metal probe housing 1. The middle inner wall and the front inner wall of the waterproof cover 4 are spaced apart from the outer wall of the metal probe housing 1. The middle and front inner walls of the waterproof cover 4 are spaced apart from the outer wall of the metal probe housing 1 to form an exhaust channel, so that the air inside the metal probe housing 1 can be smoothly discharged, and the groundwater in the well can smoothly enter from the front end of the metal probe housing 1, thereby realizing the detection of water level.

[0047] An electrode holder is fixed inside the waterproof cover 4. Two electrodes (detection probes) are fixed at the front end of the electrode holder, and two wires are electrically connected to the rear ends of the two electrodes. The wires are located inside the steel ruler cable measuring rope 2, which serves as the outer insulating layer of the wires. Markings are set on the outside of the steel ruler cable measuring rope 2, allowing it to be used as a ruler. When the water level gauge comes into contact with the water at the bottom of the well, causing both electrodes to simultaneously touch the water surface, the water conducts electricity, connecting the two electrodes to form a circuit, and the water level gauge will emit a buzzer to indicate this.

[0048] The outer wall of the metal probe housing 1 is provided with a limiting protrusion ring 14. The rear end of the waterproof cover 4 abuts against the side wall of the limiting protrusion ring 14. The limiting protrusion ring 14 can limit the installation position of the waterproof cover 4 on the one hand, and prevent water on the rear outer wall of the metal probe housing 1 from flowing from the gap between the rear end of the waterproof cover 4 and the metal probe housing 1 to the front end of the metal probe housing 1 on the other hand, thereby avoiding water from flowing into the metal probe housing 1 from the side hole 3 and affecting the detection results of the detection probe.

[0049] In this embodiment, the waterproof cover 4 has a cylindrical structure. A connecting portion 6 is fixedly provided on the inner wall of the rear end of the waterproof cover 4. The connecting portion 6 is integrally fixedly connected to the outer shell of the waterproof cover 4, and the connecting portion 6 abuts against and is fixed to the outer wall of the metal probe shell 1. The waterproof cover 4 adopts a cylindrical structure, and its rear end is fixed to the outer wall of the metal probe shell 1 via the connecting portion 6. The connection of the connecting portion 6 is achieved by welding.

[0050] The metal probe housing 1 has a cylindrical structure. The inner wall of the rear end of the waterproof cover 4 is provided with an internal thread 7, and the outer wall of the metal probe housing 1 is provided with an external thread 8. The internal thread 7 and the external thread 8 are detachably fixedly connected by threads. The waterproof cover 4 and the metal probe housing 1 are detachably connected by threads, making installation and disassembly convenient.

[0051] Example 3

[0052] like Figure 4 As shown, this embodiment includes a metal probe housing 1, with a steel ruler cable measuring rope 2 fixedly connected to the rear end of the metal probe housing 1, and a detection probe fixedly installed inside the front end of the metal probe housing 1; the front end of the metal probe housing 1 is open, and a plurality of side holes 3 are evenly spaced on the front side wall of the metal probe housing 1; a waterproof cover 4 is fixedly fitted on the outer side of the front end of the metal probe housing 1, the front end of the waterproof cover 4 is open, and a plurality of vent holes 5 are provided on the waterproof cover 4, with the vent holes 5 and the side holes 3 spaced apart along the circumference of the metal probe housing 1.

[0053] The rear end of the waterproof cover 4 is fixedly connected to the outer wall of the metal probe housing 1. The middle inner wall and the front inner wall of the waterproof cover 4 are spaced apart from the outer wall of the metal probe housing 1. The middle and front inner walls of the waterproof cover 4 are spaced apart from the outer wall of the metal probe housing 1 to form an exhaust channel, so that the air inside the metal probe housing 1 can be smoothly discharged, and the groundwater in the well can smoothly enter from the front end of the metal probe housing 1, thereby realizing the detection of water level.

[0054] An electrode holder is fixed inside the waterproof cover 4. Two electrodes (detection probes) are fixed at the front end of the electrode holder, and two wires are electrically connected to the rear ends of the two electrodes. The wires are located inside the steel ruler cable measuring rope 2, which serves as the outer insulating layer of the wires. Markings are set on the outside of the steel ruler cable measuring rope 2, allowing it to be used as a ruler. When the water level gauge comes into contact with the water at the bottom of the well, causing both electrodes to simultaneously touch the water surface, the water conducts electricity, connecting the two electrodes to form a circuit, and the water level gauge will emit a buzzer to indicate this.

[0055] The outer wall of the metal probe housing 1 is provided with a limiting protrusion ring 14. The rear end of the waterproof cover 4 abuts against the side wall of the limiting protrusion ring 14. The limiting protrusion ring 14 can limit the installation position of the waterproof cover 4 on the one hand, and prevent water on the rear outer wall of the metal probe housing 1 from flowing from the gap between the rear end of the waterproof cover 4 and the metal probe housing 1 to the front end of the metal probe housing 1 on the other hand, thereby avoiding water from flowing into the metal probe housing 1 from the side hole 3 and affecting the detection results of the detection probe.

[0056] In this embodiment, the waterproof cover 4 is funnel-shaped with an inner diameter that gradually increases from the rear end to the front end. The outer wall of the metal probe housing 1 is provided with multiple arc-shaped protrusions 9, and the inner wall of the rear end of the waterproof cover 4 is provided with multiple arc-shaped grooves 10 that match the arc-shaped protrusions 9. The arc-shaped protrusions 9 are correspondingly engaged in the arc-shaped grooves 10. The metal probe housing 1 is connected to the waterproof cover 4 by engaging the arc-shaped protrusions 9 and the arc-shaped grooves 10, which is convenient for installation and disassembly, and facilitates the spacing and positioning of the vent hole 5 and the side hole 3.

[0057] Example 4

[0058] like Figure 5 As shown, this embodiment includes a metal probe housing 1, with a steel ruler cable measuring rope 2 fixedly connected to the rear end of the metal probe housing 1, and a detection probe fixedly installed inside the front end of the metal probe housing 1; the front end of the metal probe housing 1 is open, and a plurality of side holes 3 are evenly spaced on the front side wall of the metal probe housing 1; a waterproof cover 4 is fixedly fitted on the outer side of the front end of the metal probe housing 1, the front end of the waterproof cover 4 is open, and a plurality of vent holes 5 are provided on the waterproof cover 4, with the vent holes 5 and the side holes 3 spaced apart along the circumference of the metal probe housing 1.

[0059] The rear end of the waterproof cover 4 is fixedly connected to the outer wall of the metal probe housing 1. The middle inner wall and the front inner wall of the waterproof cover 4 are spaced apart from the outer wall of the metal probe housing 1. The middle and front inner walls of the waterproof cover 4 are spaced apart from the outer wall of the metal probe housing 1 to form an exhaust channel, so that the air inside the metal probe housing 1 can be smoothly discharged, and the groundwater in the well can smoothly enter from the front end of the metal probe housing 1, thereby realizing the detection of water level.

[0060] An electrode holder is fixed inside the waterproof cover 4. Two electrodes (detection probes) are fixed at the front end of the electrode holder, and two wires are electrically connected to the rear ends of the two electrodes. The wires are located inside the steel ruler cable measuring rope 2, which serves as the outer insulating layer of the wires. Markings are set on the outside of the steel ruler cable measuring rope 2, allowing it to be used as a ruler. When the water level gauge comes into contact with the water at the bottom of the well, causing both electrodes to simultaneously touch the water surface, the water conducts electricity, connecting the two electrodes to form a circuit, and the water level gauge will emit a buzzer to indicate this.

[0061] The outer wall of the metal probe housing 1 is provided with a limiting protrusion ring 14. The rear end of the waterproof cover 4 abuts against the side wall of the limiting protrusion ring 14. The limiting protrusion ring 14 can limit the installation position of the waterproof cover 4 on the one hand, and prevent water on the rear outer wall of the metal probe housing 1 from flowing from the gap between the rear end of the waterproof cover 4 and the metal probe housing 1 to the front end of the metal probe housing 1 on the other hand, thereby avoiding water from flowing into the metal probe housing 1 from the side hole 3 and affecting the detection results of the detection probe.

[0062] In this embodiment, the waterproof cover 4 has a cylindrical structure. A connecting portion 6 is fixedly provided on the inner wall of the rear end of the waterproof cover 4. The connecting portion 6 is fixedly abutted against the outer wall of the metal probe housing 1. Specifically, the outer wall of the metal probe housing 1 has multiple arc-shaped protrusions 9, and the inner wall of the connecting portion 6 has multiple arc-shaped grooves 10 that match the arc-shaped protrusions 9. The arc-shaped protrusions 9 are correspondingly engaged within the arc-shaped grooves 10. The metal probe housing 1 is connected to the waterproof cover 4 by engaging the arc-shaped protrusions 9 and the arc-shaped grooves 10, which facilitates installation and disassembly and allows for convenient positioning of the ventilation holes 5 and the side holes 3.

[0063] Example 5

[0064] like Figure 6 As shown, this embodiment includes a metal probe housing 1, with a steel ruler cable measuring rope 2 fixedly connected to the rear end of the metal probe housing 1, and a detection probe fixedly installed inside the front end of the metal probe housing 1; the front end of the metal probe housing 1 is open, and a plurality of side holes 3 are evenly spaced on the front side wall of the metal probe housing 1; a waterproof cover 4 is fixedly fitted on the outer side of the front end of the metal probe housing 1, the front end of the waterproof cover 4 is open, and a plurality of vent holes 5 are provided on the waterproof cover 4, with the vent holes 5 and the side holes 3 spaced apart along the circumference of the metal probe housing 1.

[0065] The rear end of the waterproof cover 4 is fixedly connected to the outer wall of the metal probe housing 1. The middle inner wall and the front inner wall of the waterproof cover 4 are spaced apart from the outer wall of the metal probe housing 1. The middle and front inner walls of the waterproof cover 4 are spaced apart from the outer wall of the metal probe housing 1 to form an exhaust channel, so that the air inside the metal probe housing 1 can be smoothly discharged, and the groundwater in the well can smoothly enter from the front end of the metal probe housing 1, thereby realizing the detection of water level.

[0066] An electrode holder is fixed inside the waterproof cover 4. Two electrodes (detection probes) are fixed at the front end of the electrode holder, and two wires are electrically connected to the rear ends of the two electrodes. The wires are located inside the steel ruler cable measuring rope 2, which serves as the outer insulating layer of the wires. Markings are set on the outside of the steel ruler cable measuring rope 2, allowing it to be used as a ruler. When the water level gauge comes into contact with the water at the bottom of the well, causing both electrodes to simultaneously touch the water surface, the water conducts electricity, connecting the two electrodes to form a circuit, and the water level gauge will emit a buzzer to indicate this.

[0067] The outer wall of the metal probe housing 1 is provided with a limiting protrusion ring 14. The rear end of the waterproof cover 4 abuts against the side wall of the limiting protrusion ring 14. The limiting protrusion ring 14 can limit the installation position of the waterproof cover 4 on the one hand, and prevent water on the rear outer wall of the metal probe housing 1 from flowing from the gap between the rear end of the waterproof cover 4 and the metal probe housing 1 to the front end of the metal probe housing 1 on the other hand, thereby avoiding water from flowing into the metal probe housing 1 from the side hole 3 and affecting the detection results of the detection probe.

[0068] In this embodiment, the waterproof cover 4 is funnel-shaped with an inner diameter that gradually increases from the rear end to the front end. The outer wall of the metal probe housing 1 is provided with several limiting grooves 11. The rear end of the waterproof cover 4 is provided with a limiting threaded hole 12 that matches the limiting groove 11. The internal thread 7 of the limiting threaded hole 12 is connected to a limiting bolt 13. The head of the limiting bolt 13 is located in the limiting groove 11. By inserting the limiting bolt 13 into the limiting groove 11, the waterproof cover 4 and the metal probe housing 1 are aligned and connected, making installation and disassembly convenient.

[0069] Example 6

[0070] like Figure 7 As shown, this embodiment includes a metal probe housing 1, with a steel ruler cable measuring rope 2 fixedly connected to the rear end of the metal probe housing 1, and a detection probe fixedly installed inside the front end of the metal probe housing 1; the front end of the metal probe housing 1 is open, and a plurality of side holes 3 are evenly spaced on the front side wall of the metal probe housing 1; a waterproof cover 4 is fixedly fitted on the outer side of the front end of the metal probe housing 1, the front end of the waterproof cover 4 is open, and a plurality of vent holes 5 are provided on the waterproof cover 4, with the vent holes 5 and the side holes 3 spaced apart along the circumference of the metal probe housing 1.

[0071] The rear end of the waterproof cover 4 is fixedly connected to the outer wall of the metal probe housing 1. The middle inner wall and the front inner wall of the waterproof cover 4 are spaced apart from the outer wall of the metal probe housing 1. The middle and front inner walls of the waterproof cover 4 are spaced apart from the outer wall of the metal probe housing 1 to form an exhaust channel, so that the air inside the metal probe housing 1 can be smoothly discharged, and the groundwater in the well can smoothly enter from the front end of the metal probe housing 1, thereby realizing the detection of water level.

[0072] An electrode holder is fixed inside the waterproof cover 4. Two electrodes (detection probes) are fixed at the front end of the electrode holder, and two wires are electrically connected to the rear ends of the two electrodes. The wires are located inside the steel ruler cable measuring rope 2, which serves as the outer insulating layer of the wires. Markings are set on the outside of the steel ruler cable measuring rope 2, allowing it to be used as a ruler. When the water level gauge comes into contact with the water at the bottom of the well, causing both electrodes to simultaneously touch the water surface, the water conducts electricity, connecting the two electrodes to form a circuit, and the water level gauge will emit a buzzer to indicate this.

[0073] The outer wall of the metal probe housing 1 is provided with a limiting protrusion ring 14. The rear end of the waterproof cover 4 abuts against the side wall of the limiting protrusion ring 14. The limiting protrusion ring 14 can limit the installation position of the waterproof cover 4 on the one hand, and prevent water on the rear outer wall of the metal probe housing 1 from flowing from the gap between the rear end of the waterproof cover 4 and the metal probe housing 1 to the front end of the metal probe housing 1 on the other hand, thereby avoiding water from flowing into the metal probe housing 1 from the side hole 3 and affecting the detection results of the detection probe.

[0074] In this embodiment, the waterproof cover 4 has a cylindrical structure. A connecting part 6 is fixedly provided on the inner wall of the rear end of the waterproof cover 4. The connecting part 6 abuts and is fixed to the outer wall of the metal probe housing 1. Specifically, the outer wall of the metal probe housing 1 is provided with a plurality of limiting grooves 11. The rear end of the waterproof cover 4 is provided with a limiting threaded hole 12 that matches the limiting groove 11. A limiting bolt 13 is connected to the internal thread 7 of the limiting threaded hole 12. The head of the limiting bolt 13 is located in the limiting groove 11. By inserting the limiting bolt 13 into the limiting groove 11, the waterproof cover 4 and the metal probe housing 1 are aligned and connected, making installation and disassembly convenient.

[0075] By setting up a waterproof cover 4, this utility model can effectively prevent water from flowing from the well wall into the metal probe housing 1 through the side hole 3 and affecting the detection of the detection probe, thereby improving the accuracy of the detection results; at the same time, the setting of the vent hole 5 can prevent the air inside the waterproof cover 4 from being unable to escape and thus preventing the detection probe from contacting the groundwater surface.

[0076] In the description of this utility model, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "circumferential", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the system 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.

[0077] In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0078] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0079] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0080] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steel tape water level gauge for preventing well wall water flow interference, characterized by, The utility model provides a kind of metal probe shell, the rear end of the metal probe shell (1) is fixedly connected steel ruler cable measuring rope (2), and the front end inside of the metal probe shell (1) is fixedly provided with detection probe;The front end of the metal probe shell (1) is open, and a plurality of side holes (3) are evenly spaced on the front end side wall of the metal probe shell (1), a waterproof cover (4) is fixedly covered on the outside of the front end of the metal probe shell (1), the front end of the waterproof cover (4) is open, and a plurality of air holes (5) are provided on the waterproof cover (4), and the air holes (5) and the side holes (3) are spaced along the circumference of the metal probe shell (1).

2. A steel tape water level gauge for preventing water flow interference with a borehole wall according to claim 1, characterized in that, A limiting convex ring (14) is provided on the outer wall of the metal probe shell (1), and the rear end of the waterproof cover (4) abuts against the side wall of the limiting convex ring (14).

3. A steel tape water level gauge for preventing water flow interference with a borehole wall according to claim 1, wherein The rear end of the waterproof cover (4) is fixedly connected with the outer wall of the metal probe shell (1), and the inner wall of the middle part and the front part of the waterproof cover (4) are spaced apart from the outer wall of the metal probe shell (1).

4. A steel tape water level gauge for preventing water flow interference with a borehole wall according to claim 3, characterized in that, The waterproof cover (4) is funnel-shaped, with the inner diameter gradually increasing from the rear end to the front end.

5. A steel tape water level gauge for preventing water flow interference with a borehole wall according to claim 3, wherein The waterproof cover (4) is a straight cylindrical structure, and a connecting portion (6) is fixedly provided on the inner wall of the rear end of the waterproof cover (4), and the connecting portion (6) is fixedly connected with the outer wall of the metal probe shell (1).

6. A steel tape water level gauge for preventing water flow interference with a well wall according to any one of claims 1 to 5, characterized in that, The rear end of the waterproof cover (4) is fixedly connected with the outer wall of the metal probe shell (1) by welding.

7. A steel tape water level gauge for preventing water flow interference with a well wall according to any one of claims 1 to 5, characterized in that, The rear end of the waterproof cover (4) is fixedly connected with the outer wall of the metal probe shell (1) by welding.

8. A steel tape water level gauge for preventing water flow interference with a borehole wall according to claim 7, characterized in that, The metal probe shell (1) is a cylindrical structure, the inner wall of the rear end of the waterproof cover (4) is provided with an inner thread (7), the outer wall of the metal probe shell (1) is provided with an outer thread (8), and the inner thread (7) and the outer thread (8) are detachably fixedly connected by threads.

9. A steel tape water level gauge for preventing water flow interference with a borehole wall according to claim 7, wherein A plurality of arc-shaped protrusions (9) are provided on the outer wall of the metal probe shell (1), a plurality of arc-shaped grooves (10) matched with the arc-shaped protrusions (9) are provided on the inner wall of the rear end of the waterproof cover (4), and the arc-shaped protrusions (9) are one-to-one correspondingly clamped in the arc-shaped grooves (10).

10. A steel tape water level gauge for preventing water flow interference with a borehole wall according to claim 7, characterized in that, A plurality of limiting grooves (11) are provided on the outer wall of the metal probe shell (1), a plurality of limiting threaded holes (12) matched with the limiting grooves (11) are provided on the rear end of the waterproof cover (4), a limiting bolt (13) is connected in the limiting threaded hole (12) through the inner thread (7), and the head of the limiting bolt (13) is arranged in the limiting groove (11).

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