Underground water level monitoring device

Abstract

The utility model discloses an underground water level monitoring device which comprises a monitoring well. The monitoring trolley comprises a trolley body and four groups of positioning feet; a platform is arranged on the surface of the trolley body, a circular through hole is formed in the platform, the distances from the circle center of the circular through hole to the four sets of positioning feet are the same, the four sets of positioning feet are installed at the bottom of the trolley body, and the positioning feet are telescopic jacking mechanisms. The water level monitoring assembly comprises a water level sensor and a protective sleeve, the protective sleeve coaxially covers a probe of the water level sensor, the protective sleeve is fixed to the probe of the water level sensor through a support, the top and the bottom of the protective sleeve are sealed, and a plurality of through holes are formed in the side wall of the protective sleeve; a cable of the water level sensor is installed on the monitoring trolley through a winding mechanism. The utility model has the advantages of sediment prevention, high stability, quick positioning and strong adaptability.

Description

Technical Field

[0001] This utility model relates to the field of hydrological monitoring technology. More specifically, this utility model relates to a groundwater level monitoring device. Background Technology

[0002] With the continuous expansion of groundwater resource development and utilization, groundwater level monitoring is becoming increasingly important in fields such as ecological environment protection, geological disaster early warning, and water conservancy project management. Traditional groundwater level monitoring devices typically use water level sensors directly lowered into monitoring wells, with the sensor probe contacting the water surface for detection. However, practical applications suffer from the following technical drawbacks: Sediment interference: Sediment in the well can easily enter the sensor probe area with the water flow, causing sensor blockage or even damage. Existing protective structures are mostly simple filters, which cannot effectively block small particles, and after long-term use, the filters are easily covered by sediment, affecting permeability. Insufficient positioning stability: During the lowering process, the sensor often deviates due to gravity and collides with the well wall, causing data errors; when the water flow is turbulent, the sensor is prone to shaking, further reducing monitoring accuracy. Existing technologies mostly rely on manual adjustment, which is inefficient and makes it difficult to ensure vertical lowering. Inconvenient equipment movement and fixing: Monitoring devices are mostly fixed installations or large vehicle-mounted equipment, making it difficult to quickly position them in narrow well openings, and lacking adjustment mechanisms to adapt to different well diameters, resulting in time-consuming and labor-intensive on-site deployment. The conflict between protection and storage: Some devices have added multiple layers of protection to prevent sediment buildup, but excessive wrapping can obstruct water flow from contacting the sensors. Furthermore, the positioning components lack adjustable design, occupying a large space during storage and affecting the device's portability. Therefore, there is an urgent need for a groundwater level monitoring device that combines sediment protection, high stability, rapid positioning, and strong adaptability to meet the long-term, accurate monitoring requirements under complex working conditions. Utility Model Content

[0003] The purpose of this invention is to provide a groundwater level monitoring device that combines the advantages of preventing sediment buildup, high stability, rapid positioning, and strong adaptability.

[0004] The technical solution adopted by this utility model to solve this technical problem is: a groundwater level monitoring device, characterized in that it includes:

[0005] Monitoring well;

[0006] The monitoring trolley includes a trolley body and four sets of positioning feet; the surface of the trolley body has a platform, and a circular through hole is opened on the platform. The distance from the center of the circular through hole to the four sets of positioning feet is the same. The four sets of positioning feet are installed at the bottom of the trolley body, and the positioning feet are retractable lifting mechanisms.

[0007] A water level monitoring component includes a water level sensor and a protective sleeve. The protective sleeve is coaxially mounted on the probe of the water level sensor. The protective sleeve is fixed to the probe of the water level sensor by a bracket. The top and bottom of the protective sleeve are sealed, and the side wall of the protective sleeve is provided with several through holes. The cable of the water level sensor is installed on the monitoring trolley by a cable winding mechanism.

[0008] As a further embodiment of this utility model, the winding mechanism includes a winch and a fixed pulley, the cable is wound on the winch, and the fixed pulley is fixed to the platform by a bracket.

[0009] As a further embodiment of this utility model, the well pipe of the monitoring well is symmetrically provided with arc-shaped grooves; the protective sleeve is detachably connected with a positioning component, the positioning component including a pair of positioning rods, the pair of positioning rods being slidably disposed in the arc-shaped grooves.

[0010] As a further embodiment of this utility model, the positioning component further includes an annular fixing member; the annular fixing member is threadedly connected to the bottom of the outer wall of the protective sleeve; and positioning rods are connected to the symmetrical ends of the annular fixing member.

[0011] As a further embodiment of this utility model, the positioning rod is rotatably connected to the annular fixing member; the positioning rod is an adjustable rod.

[0012] As a further embodiment of this utility model, the monitoring well also includes an extension platform and a well cover; the extension platform is disposed on the outer periphery of the monitoring well opening and fixed to the ground on the outer periphery of the well opening, the upper surface of the extension platform is horizontal, and the extension platform is provided with four sets of positioning slots for accommodating positioning feet; the well cover can cover the monitoring well opening.

[0013] As a further embodiment of this utility model, a push rod is provided on one side of the monitoring trolley.

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

[0015] 1. Resistant to sediment interference and improve sensor lifespan: The protective sleeve adopts a top and bottom sealing design and has micropores (0.5~2 mm) on the side wall. This can effectively block the intrusion of large particles of sediment while ensuring that water flows through the holes and contacts the sensor. This avoids the problems of traditional filter screens being easily clogged or over-wrapped, which affect the monitoring accuracy and significantly extends the service life of the sensor.

[0016] 2. Enhanced Precision Positioning and Stability: The monitoring trolley is lifted by four sets of retractable positioning feet, allowing the brake wheels to leave the ground. This, combined with the positioning slots on the extension platform, enables rapid fixation and avoids errors caused by manual adjustment. The cable winding mechanism (winch + fixed pulley) is designed with the cable axis and the circular through-hole axis aligned to ensure the water level sensor is lowered vertically, reducing collisions with the well wall. The positioning rod slides into the arc-shaped groove of the monitoring well, further limiting sensor sway caused by water flow impact and improving data reliability.

[0017] 3. High adaptability and efficient deployment: The adjustable length of the positioning rod (threaded connection to the pipe body) and the horizontal / vertical switching design make it compatible with monitoring wells of different diameters, solving the problem of poor well diameter compatibility of traditional devices; the wheel track matching design of the extension platform and the monitoring trolley facilitates the trolley to quickly pass through the wellhead for positioning, shortening the on-site deployment time;

[0018] 4. Optimized protection and maintenance convenience: The protective sleeve is fixed to the sensor probe by the bracket, and the detachable structure makes it easy to clean mud and sand or replace parts; the annular fastener is threadedly connected to the protective sleeve, which enables quick disassembly and assembly of the positioning component and reduces maintenance costs.

[0019] 5. Improved reliability of long-term monitoring: Multiple anti-offset designs (vertical centering and lowering, arc groove guidance, telescopic positioning foot fixation) ensure the stability of the sensor under complex working conditions, especially suitable for environments with rapid water flow or soft geological conditions, avoiding monitoring interruption or data distortion caused by offset of traditional devices.

[0020] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the groundwater level monitoring device of this utility model;

[0022] Figure 2 This is a partial schematic diagram of the groundwater level monitoring device of this utility model.

[0023] Among them, 1-monitoring well, 2-monitoring trolley, 3-positioning foot, 4-protective sleeve, 5-water level sensor, 6-through hole, 7-winch, 8-fixed pulley, 9-cable, 10-positioning rod, 11-ring fastener, 12-push rod. Detailed Implementation

[0024] The present invention will now be described in detail and completely with reference to the accompanying drawings. Those skilled in the art will be able to implement the present invention based on these descriptions. Before describing the present invention with reference to the accompanying drawings, it should be particularly noted that the technical solutions and features provided in the various parts of the present invention, including the following description, can be combined with each other without conflict.

[0025] Furthermore, the embodiments of the present invention described below are generally only a part of the embodiments of the present invention, and not all of the embodiments. Therefore, all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the protection scope of the present invention.

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The specific implementation process is as follows:

[0027] like Figures 1-2 As shown, this utility model provides a groundwater level monitoring device, comprising:

[0028] Monitoring well 1 is inserted into the groundwater layer;

[0029] The monitoring trolley 2 includes a trolley body and four sets of positioning feet 3. The wheels at the bottom of the trolley body are brake wheels. The surface of the trolley body has a platform with a circular through hole for the water level sensor 5 to pass through. The center of the circular through hole is equidistant from the four sets of positioning feet 3. The four sets of positioning feet 3 are installed at the bottom of the trolley body. The positioning feet 3 are retractable lifting mechanisms. After the four sets of positioning feet 3 are on the ground, they lift the monitoring trolley 2, raising the wheels of the trolley off the ground to facilitate the positioning of the water level sensor 5.

[0030] The water level monitoring component includes a water level sensor 5 and a protective sleeve 4. The protective sleeve 4 is coaxially mounted on the probe of the water level sensor 5. The protective sleeve 4 is fixed to the probe of the water level sensor 5 by a bracket. The top and bottom of the protective sleeve 4 are sealed. The side wall of the protective sleeve 4 is provided with several through holes 6, with a diameter of 0.5~2 mm. This arrangement of the protective sleeve 4 can block mud and sand larger than the diameter of the through holes 6, preventing mud and sand from clogging the water level sensor 5 and causing detection failure. The cable 9 of the water level sensor 5 is installed on the monitoring trolley 2 through a cable winding mechanism.

[0031] This technical solution may also include the following technical details to better achieve the technical effect: the winding mechanism includes a winch 7 and a fixed pulley 8. The cable 9 is wound on the winch 7, and the winch 7 realizes the winding and unwinding of the cable. The fixed pulley 8 is fixed to the platform by a bracket, so that after the cable 9 changes direction through the fixed pulley 8, when the cable 9 is stationary, the axis of the cable 9 coincides with the axis of the circular through hole, so that the water level sensor 5 is kept as close as possible to the central axis of the monitoring well 1 during the lowering process, reducing the probability of collision with the well wall.

[0032] This technical solution may also include the following technical details to better achieve the technical effect: the well pipe of the monitoring well 1 is symmetrically provided with arc-shaped grooves; the protective sleeve 4 is detachably connected with a positioning component, the positioning component includes a pair of positioning rods 10, the pair of positioning rods 10 are slidably disposed in the arc-shaped grooves to limit the shaking of the protective sleeve 4 and improve the stability of the monitoring device. When the water flow is turbulent, the protective sleeve 4 has a certain blocking effect to prevent the water level sensor 5 from shaking and affecting the monitoring accuracy.

[0033] This technical solution may also include the following technical details to better achieve the technical effect: the positioning component further includes an annular fixing member 11; the annular fixing member 11 is threadedly connected to the bottom of the outer wall of the protective sleeve 4; the two symmetrical ends of the annular fixing member 11 are connected to positioning rods 10. When the water level monitoring device is used, the winch 7 lowers the water level sensor 5, first aligning the two positioning rods 10 with the two arc-shaped grooves, and then the winch 7 continues to lower the water level sensor 5.

[0034] This technical solution may also include the following technical details to better achieve the technical effect: the positioning rod 10 is rotatably connected to the annular fixing member 11. In this embodiment, a pair of ear plates are welded on the annular fixing member 11, and the positioning rod 10 is fixed to the pair of ear plates by bolts. When monitoring is required, the positioning rod 10 is adjusted to a horizontal state, and when monitoring is not required, the positioning rod 10 is adjusted to a vertical state for easy storage; the positioning rod 10 is an adjustable rod. In this embodiment, the positioning rod 10 is composed of two threaded tubes, thereby adjusting the length of the positioning rod 10 to adapt to the detection of monitoring wells 1 of different diameters.

[0035] This technical solution may also include the following technical details to better achieve the technical effect: The monitoring well 1 also includes an extension platform and a well cover; the extension platform is set on the outer periphery of the well opening of the monitoring well 1 and fixed to the ground on the outer periphery of the well opening. The upper surface of the extension platform is horizontal. The extension platform is provided with four sets of positioning slots to accommodate positioning feet 3, which facilitates the positioning of the monitoring trolley 2. The size of the positioning slots is designed to be larger than the size of the lower end of the positioning feet 3. The distance between the wheels of the monitoring trolley is larger than the size of the extension platform, which facilitates the smooth passage of the monitoring trolley 2 through the extension platform; the well cover can cover the well opening of the monitoring well 1.

[0036] This technical solution may also include the following technical details to better achieve the technical effect: a push rod 12 is provided on one side of the monitoring trolley 2 to facilitate pushing the monitoring trolley 2 and adjusting the position of the monitoring trolley 2.

[0037] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and embodiments shown and described herein.

Claims

1. A groundwater level monitoring device, characterized in that, include: Monitoring well; The monitoring trolley includes the trolley body and four sets of positioning feet; The surface of the trolley body has a platform with a circular through hole. The center of the circular through hole is equidistant from four sets of positioning feet. The four sets of positioning feet are installed at the bottom of the trolley body and are retractable lifting mechanisms. A water level monitoring component includes a water level sensor and a protective sleeve. The protective sleeve is coaxially mounted on the probe of the water level sensor. The protective sleeve is fixed to the probe of the water level sensor by a bracket. The top and bottom of the protective sleeve are sealed, and the side wall of the protective sleeve is provided with several through holes. The cable of the water level sensor is installed on the monitoring trolley by a cable winding mechanism.

2. The groundwater level monitoring device as described in claim 1, characterized in that, The winding mechanism includes a winch and a fixed pulley. The cable is wound on the winch, and the fixed pulley is fixed to the platform by a bracket.

3. The groundwater level monitoring device as described in claim 1, characterized in that, The monitoring well has symmetrically arranged arc-shaped grooves on its well casing; the protective sleeve is detachably connected to a positioning component, which includes a pair of positioning rods that are slidably disposed in the arc-shaped grooves.

4. The groundwater level monitoring device as described in claim 3, characterized in that, The positioning assembly also includes an annular fastener; the annular fastener is threaded to the bottom of the outer wall of the protective sleeve; positioning rods are connected to the symmetrical ends of the annular fastener.

5. The groundwater level monitoring device as described in claim 4, characterized in that, The positioning rod is rotatably connected to the annular fixing member; the positioning rod is an adjustable rod.

6. The groundwater level monitoring device as described in claim 3, characterized in that, The monitoring well also includes an extension platform and a well cover; the extension platform is set on the outer periphery of the monitoring well opening and fixed to the ground on the outer periphery of the well opening, the upper surface of the extension platform is horizontal, and the extension platform is provided with four sets of positioning slots for accommodating positioning feet; the well cover can cover the monitoring well opening.

7. The groundwater level monitoring device as described in claim 6, characterized in that, A push rod is installed on one side of the monitoring trolley.

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