Underground water level meter probe for measuring water level of civil motor-pumped well

Abstract

The utility model relates to the technical field of water level measurement, in particular to an underground water level meter probe for measuring the water level of a civil motor-pumped well. According to the specific technical scheme, the underground water level meter probe for measuring the water level of the civil motor-pumped well comprises a water level meter probe body, a distance sensor is arranged below the water level meter probe body, the water level meter probe body is arranged in a length-adjustable pipe sleeve, and the distance sensor is arranged at the bottom of the pipe sleeve. The underground water level meter solves the problem that the probe of the water level meter is easily clamped by the water pumping device when the underground water level meter is used for measuring the underground water level.

Description

Technical Field

[0001] The utility model relates to the technical field of water level measurement, in particular to a groundwater level meter probe used for measuring the water level of a civil pumped well. Background Art

[0002] Groundwater level measurement refers to field surveys conducted to determine local groundwater levels. This typically involves measuring the water levels of multiple wells. Water level measurements help determine the direction of water flow and identify slope changes and seasonal fluctuations. They are also used for aquifer testing and groundwater sampling.

[0003] Currently, there are four types of groundwater level meters commonly used in the market for groundwater level measurement, namely: pendulum type, tracking type, float type, and pressure type.

[0004] However, in some arid areas with little rainfall and high evaporation throughout the year, the local groundwater level is generally deep, reaching as high as 100 meters in some areas. Groundwater is also the main source of water for local production and daily life. In order to use groundwater in their production and daily life, local residents often build groundwater wells and install well pumping devices. This pumping device usually uses a well pipe of a certain length and connects it with a flange. The diameter of the flange is larger than the diameter of the well pipe. When conducting local groundwater surveys, groundwater level surveys are usually conducted to obtain groundwater level information, which can better facilitate the investigation. Generally, investigators will choose to use a groundwater level meter, placing the water level meter probe into the groundwater well. When the probe contacts the water level surface, the water level meter will detect the signal change and thus be able to measure the groundwater level information.

[0005] However, since local groundwater wells are often equipped with pumping devices, which occupy part of the well space, and there is no light source in the well during measurement, surveyors cannot effectively avoid the pumping devices, and the water level meter cannot detect the spatial distribution of the pumping devices. It is very easy for the groundwater level meter probe to be stuck in the pumping device and cannot be removed, which ultimately leads to the inability to complete the groundwater level measurement and the loss of the groundwater level meter. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the utility model provides a groundwater level meter probe for measuring the water level of civil wells, which solves the problem that the water level meter probe is easily stuck by the pumping device when using a groundwater level meter to measure the groundwater level.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The utility model discloses a groundwater level meter probe for measuring the water level of a civil pumped well, comprising a water level meter probe. A distance sensor is arranged below the water level meter probe. The water level meter probe is arranged in a pipe sleeve with adjustable length, and the distance sensor is arranged at the bottom of the pipe sleeve.

[0009] Preferably, the pipe sleeve includes a fixing pipe for fixing the water level meter probe, and the fixing pipe is detachably connected to a connecting pipe.

[0010] Preferably, there may be multiple connecting pipes, which can be detachably connected in sequence.

[0011] Preferably, an insertion plate is provided on the end face of one end of the fixed tube and the connecting tube respectively, a wedge block with a triangular cross-section is provided on the outward side of the insertion plate, and a limiting hole that is adapted and corresponding to the wedge block is provided on the side wall of the other end of the connecting tube.

[0012] Preferably, a rubber sleeve is provided in the other end of the fixed tube, the water level meter probe is provided in the rubber sleeve, a slider is provided on the outer wall of the rubber sleeve near its top, and a sliding groove adapted to the slider is provided on the inner wall of the fixed tube along its axial direction, and the cable of the water level meter probe is fixed in the fixed tube and the connecting tube through a positioning ring.

[0013] Preferably, a fixing sleeve is provided through the center of the positioning ring, the cable passes through the fixing sleeve and is interference fit, and a gap for the cable to pass through is provided on the side walls of the positioning ring and the fixing sleeve, and the gap is provided in a trumpet shape from the fixing sleeve to the positioning ring.

[0014] Preferably, annular grooves are respectively provided on the inner walls of the top ends of the fixing tube and the connecting tube along their axial directions, at least one elastic column is vertically provided in the annular groove, the elastic column extends from the side wall of the annular groove, the positioning ring is located in the annular groove and is supported by the elastic column.

[0015] Preferably, the top surfaces of the positioning ring and the rubber sleeve are respectively provided with positioning cylinders, and the bottom surface of the positioning ring is detachably connected with a guide rod, and the guide rod corresponds to and adapts to the positioning cylinder, so that the positioning rings between different connecting tubes are connected through the guide rod, and in the fixed tube, the positioning ring and the rubber sleeve are connected through the guide rod.

[0016] Preferably, a pressing piece is obliquely provided on the outer wall of the connecting pipe, and the pressing piece is located above the limiting hole. A clamping block is provided on the side of the pressing piece facing the limiting hole, and the clamping block corresponds to the wedge block.

[0017] Preferably, a strip opening for the cable to pass through is provided on the side wall of the connecting tube along its axial direction, and the strip opening is staggered with the notch.

[0018] The utility model has the following beneficial effects:

[0019] 1. The utility model applies the design of a groundwater level meter probe with a distance sensor to groundwater level measurement, which can effectively solve the problem that the groundwater level meter probe is easily stuck by the pumping device during the groundwater level measurement process, thereby improving the timeliness of groundwater level measurement work.

[0020] 2. The present invention secures the water level probe within a pipe sleeve, which is primarily composed of a fixed pipe and at least one connecting pipe. This allows the length of the pipe sleeve to be adjusted as needed to accommodate wells of varying depths. Furthermore, the water level probe's cable is secured to a positioning ring within the connecting pipe. Annular grooves are provided in the connecting pipe and the fixed pipe, allowing the positioning ring to move along the grooves. Furthermore, guide rods connect adjacent positioning rings, as well as the positioning rings and the rubber sleeve securing the water level probe. When the positioning rings are driven axially along the grooves, the guide rods drive the water level probe toward the outside of the fixed pipe, allowing the water level probe to extend beyond the fixed pipe for measurement. Of course, if no obstruction is detected, the water level can be measured by directly inserting the end of the fixed pipe into the water. In this case, the water level probe does not need to be extended beyond the fixed pipe. If the water level cannot be measured even after detecting an obstruction and adjusting the pipe sleeve, the water level probe can be extended beyond the fixed pipe to see if it can pass through the obstruction for measurement. The utility model has the advantages of simple structure, simple device manufacturing and low cost, and is easy to carry and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the utility model;

[0022] Figure 2 Schematic diagram of the connecting pipe structure;

[0023] Figure 3 Schematic diagram of the bottom end of the connecting pipe and its cross-sectional view;

[0024] Figure 4 Schematic diagram of the positioning ring structure;

[0025] In the figure: water level meter probe 1, distance sensor 2, fixing tube 3, connecting tube 4, insert plate 5, wedge block 6, limiting hole 7, rubber sleeve 8, slider 9, slide groove 10, cable 11, positioning ring 12, fixing sleeve 13, notch 14, annular groove 15, elastic column 16, positioning cylinder 17, guide rod 18, pressing piece 19, card block 20, strip opening 21, cylindrical groove 22, expansion slot 23. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0028] refer to Figures 1-4 The utility model discloses a groundwater level meter probe for measuring the water level of a civil well, which is used for measuring the groundwater level of a deep well in arid areas. The probe comprises a water level meter probe 1, and a distance sensor 2 is provided below the water level meter probe 1. The distance sensor is annular and waterproof. The probe emits a particularly short light pulse and measures the time from the emission of the light pulse to the reflection of the object. Before use, the time difference response threshold of the distance sensor is set. When the water level meter probe is placed in a certain direction of a deep well in an arid area, the instrument is turned on for measurement. When the time for the light pulse to be reflected back meets the set threshold, a sound is emitted, indicating that there is an obstacle (mostly a pumping device) in the forward direction (or downward direction) of the water level probe. The surveyor can then change the direction in which the water level meter probe is placed and re-measure the water level instrument. This process is repeated until a direction in which the water level meter probe can be smoothly lowered is found and the water level measurement is completed.

[0029] At the same time, in order to facilitate the change of the measuring direction of the water level meter probe, the water level meter probe 1 is arranged in a pipe sleeve with adjustable length, and the purpose of changing the direction of the water level meter probe is achieved by changing the direction of the pipe sleeve. The distance sensor 2 is arranged at the bottom of the pipe sleeve and can be connected through a bracket. The annular distance sensor can be passed through by the water level meter probe. In some scenarios, the water level can be detected by driving the water level meter probe through the distance sensor. The cable of the distance sensor can be fixed to the outside of the pipe sleeve by bundling. Of course, it can also be fixed in the pipe sleeve together with the cable of the water level meter probe according to actual conditions. The specific setting conditions can be adaptively installed and adjusted according to actual conditions.

[0030] Furthermore, the pipe sleeve includes a fixed pipe 3 for fixing the water level gauge probe 1, and a connecting pipe 4 is detachably connected to the fixed pipe 3. There can be multiple connecting pipes 4, which can be detachably connected in sequence. Specifically: an insert plate 5 is correspondingly provided on the end face of one end of the fixed pipe 3 and the connecting pipe 4, and a wedge block 6 with a triangular cross-section is provided on the outward side of the insert plate 5, and a limiting hole 7 that is adapted and corresponding to the wedge block 6 is provided on the side wall of the other end of the connecting pipe 4. That is, the connecting pipe and the fixed pipe, and the connecting pipe and the connecting pipe are all connected through the insert plate and the limiting hole. As Figure 1 As shown, the end of the fixed pipe with the insert plate is inserted into the end of the connecting pipe with the limiting hole. Simultaneously, the connecting pipes are connected in the same manner, ultimately achieving a secure connection between multiple connecting pipes and between the connecting pipe and the fixed pipe. The length of the entire pipe sleeve can be adjusted by adding or removing connecting pipes to accommodate wells of varying depths. The wedge block on the insert plate has its slope facing upward and its end facing downward. The insert plate is inserted into the end of the connecting pipe with the limiting hole, and the wedge block is locked into the limiting hole, completing the connection between the two. The shapes of the wedge block and insert plate match those of the connecting pipe and the fixed pipe, ensuring easier connection between the connecting pipe and the fixed pipe, and between the connecting pipes. For example, if the connecting pipe and the fixed pipe are square, the insert plate is a straight plate; if the connecting pipe and the fixed pipe are cylindrical, the insert plate and wedge block are both arc-shaped and concentric with the connecting pipe and the fixed pipe.

[0031] Furthermore, in order to prevent the insert plate from being inserted into the connecting pipe and occupying a certain space, an annular cylindrical groove 22 is provided on the inner wall of the end of the connecting pipe with the limiting hole to reduce the wall thickness of the connecting pipe so that the insert plate is located in the area where the cylindrical groove is located. Figure 1 As another embodiment, the cylindrical groove may be provided only at the position where the limiting hole is located so that the insert plate can be inserted.

[0032] Furthermore, the water level probe is located within the fixed tube. Specifically, a rubber sleeve 8 is provided at the other end of the fixed tube 3. The water level probe 1 is disposed within the rubber sleeve 8, forming an interference fit with the rubber sleeve to secure the water level probe. To allow the water level probe to extend as far as possible within the fixed tube, the water level probe is secured to the rubber sleeve near its bottom end (i.e., near the end of the distance sensor). A slider 9 is provided on the outer wall of the rubber sleeve 8, near its top. Only two sliders may be provided, and they are positioned in a corresponding manner. A chute 10 is provided along the inner wall of the fixed tube 3 along its axial direction, adapted to fit the slider 9. The chute is adapted to fit the slider, and the slider is placed within the chute, allowing the rubber sleeve to move along the chute with the water level locator, thereby extending the water level probe out of the fixed tube. If an obstacle is still detected after adjusting the position of the sleeve, the water level probe can be extended out of the fixed tube to detect the water level. Note that this scenario applies to situations where the water level probe can pass through an obstacle, but the sleeve cannot. The cable 11 of the water level gauge probe 1 is fixed in the fixing pipe 3 and the connecting pipe 4 via a positioning ring 12 .

[0033] Specifically: A fixing sleeve 13 is provided through the center of the positioning ring 12, and the fixing sleeve is made of rubber. The cable 11 passes through the fixing sleeve 13 and is interference-fitted so that the cable is clamped. A notch 14 for the cable 11 to pass through is provided on the side walls of the positioning ring 12 and the fixing sleeve 13. The notch 14 is provided in a trumpet shape from the fixing sleeve 13 to the positioning ring 12. Figure 4 As shown, the cable is inserted into the fixing sleeve through the notch.

[0034] Furthermore, an annular groove 15 is provided on the inner wall of the top end of the fixed tube 3 and the connecting tube 4 along the axial direction thereof, and at least one elastic column 16 is vertically provided in the annular groove 15. The elastic column 16 extends from the side wall of the annular groove 15. The positioning ring 12 is located in the annular groove 15 and is supported by the elastic column 16. It should be noted that the height of the annular groove determines the length of the water level meter probe extending from the fixed tube. The elastic column is vertically arranged along the annular groove, and multiple elastic columns are arranged along its length. The spacing between each elastic column in the vertical direction determines the length of the water level meter probe extending out of the fixed tube each time. In order to increase the stability of the positioning ring in the cylindrical groove, at least two elastic columns are provided in the radial direction. When setting, the elastic column is embedded in the inner wall of the annular groove and connected by a spring, so that the elastic column can extend into the inner wall of the cylindrical groove for the positioning ring to pass through, and then pop out and reset.

[0035] Furthermore, the top surfaces of the positioning ring 12 and the rubber sleeve 8 are respectively provided with positioning cylinders 17, and the bottom surface of the positioning ring 12 is detachably connected to a guide rod 18, and the guide rod 18 corresponds to and adapts to the positioning cylinder 17, so that the positioning rings 12 between different connecting pipes 4 are connected through the guide rod 18, and the positioning ring 12 and the rubber sleeve 8 in the fixed pipe 3 are connected through the guide rod 18. It should be noted that: the positioning ring is connected to the rubber sleeve by the provided guide rod, and by pressing the positioning ring at the top of the pipe sleeve toward the fixed pipe, the other guide rods and rubber sleeves connected thereto also move toward the outside of the fixed pipe until the water level meter probe extends out of the fixed pipe, and by controlling the length of the positioning ring at the top moving toward the fixed pipe, the length of the water level meter probe extending out of the fixed pipe is controlled. As one embodiment, two positioning cylinders are provided, correspondingly provided at their centers, and the guide rods are inserted into the positioning cylinders, and the other ends of the guide rods are connected to the positioning rings by threads. In order to make it easier to connect and fix the guide rod and the positioning tube, the position of the guide rod on the positioning ring corresponds to the position of the positioning tube on the positioning ring. The end of the guide tube is tapered to make it easier to insert into the positioning tube.

[0036] Furthermore, a strip opening 21 for the cable 11 to pass through is provided on the side wall of the connecting tube 4 along its axial direction, so that the cable can be directly inserted into the connecting tube from the outside of the connecting tube and then fixed by a positioning ring. At the same time, in order to prevent the cable from being pulled out of the positioning ring, the strip opening 21 is staggered with the notch 14. Specifically: when installing the cable into the connecting tube, the cable is first inserted into the positioning ring so that the notch on the positioning ring faces the inside of the connecting tube, and then the positioning ring is inserted into the annular groove to prevent the notch from corresponding to the strip opening, that is, from being connected, thereby preventing the cable from running out through the notch and the strip opening. At the same time, the position of the positioning ring in each connecting tube is ensured to be the same. At the same time, in the fixed tube, the guide tube is ensured to correspond to the positioning tube on the rubber sleeve, so that during the installation of the positioning ring, the guide rod is inserted into the positioning tube on another positioning ring, thereby achieving connection between the positioning rings and between the positioning ring and the rubber sleeve, and finally enabling the water level meter probe to move along the slide.

[0037] Furthermore, to facilitate the removal of the connecting tube, a pressing piece 19 is provided obliquely on the outer wall of the connecting tube 4. The pressing piece 19 is located above the limiting hole 7 and corresponds to the limiting hole. A clamping block 20 is provided on the side of the pressing piece 19 facing the limiting hole 7, and the clamping block 20 corresponds to the wedge block 6. Specifically, the clamping block is close to the end face of the wedge block. By pressing the pressing piece, the wedge block is tilted toward the inside of the connecting tube until the restriction between the wedge block and the limiting hole is released, thereby separating the two connecting tubes or the connecting tube from the fixed tube. At the same time, to enable the pressing piece to press the wedge block as much as possible, an expansion slot 23 is provided on the side wall of the connecting tube below the connection point of the pressing piece. This slot can provide space to accommodate the pressing piece after it is pressed, allowing the clamping block on the pressing piece to directly push the wedge block out of the limiting hole, thereby separating the two connecting tubes and / or the connecting tube from the fixed tube.

[0038] When using the present invention, the number of connecting pipes is selected according to the depth of the well. After the water level gauge probe is fixed in the fixed pipe, the position of the positioning ring in the fixed pipe is adjusted. After the guide rod is connected to the positioning tube, the required number of connecting pipes are connected in sequence. In the process of connecting the connecting pipes, the orientation of the positioning ring in the connecting pipe is adjusted according to the orientation of the positioning ring in the fixed pipe, so that the cable is successfully fixed in the connecting pipe, and the guide rod is inserted into the positioning tube in sequence, finally achieving the installation of the pipe sleeve. Then, the entire pipe sleeve is extended into the well and gradually extended downward. When an obstacle is detected, the position of the pipe sleeve in the well is adjusted. When all positions have been tried and it is still impossible to move downward and measure, the positioning ring at the top of the pipe sleeve can be pressed downward to move the water level gauge probe outward along the slide to see if it can pass through the obstacle to detect the water level. Finally, the water level can be detected in a variety of ways.

[0039] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0040] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements to the technical solutions of the present invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A groundwater level meter probe for measuring water level in a civil pumped well, comprising a water level meter probe (1), characterized in that: A distance sensor (2) is provided below the water level meter probe (1); the water level meter probe (1) is provided in a length-adjustable pipe sleeve; and the distance sensor (2) is provided at the bottom of the pipe sleeve.

2. The groundwater level meter probe for measuring water level in a civil pumped well according to claim 1, characterized in that: The pipe sleeve comprises a fixing pipe (3) for fixing the water level meter probe (1), and a connecting pipe (4) is detachably connected to the fixing pipe (3).

3. The groundwater level meter probe for measuring water level in a civil pumped well according to claim 2, characterized in that: There can be multiple connecting pipes (4), which can be detachably connected in sequence.

4. The groundwater level meter probe for measuring water level in a civil pumped well according to claim 2, characterized in that: Insertion plates (5) are respectively provided on the end surfaces of one end of the fixed tube (3) and the connecting tube (4), a wedge-shaped block (6) with a triangular cross section is provided on the outward side of the insertion plate (5), and a limiting hole (7) adapted to and corresponding to the wedge-shaped block (6) is provided on the side wall of the other end of the connecting tube (4).

5. The groundwater level meter probe for measuring water level in a civil pumped well according to claim 4, characterized in that: A rubber sleeve (8) is provided in the other end of the fixed tube (3), the water level gauge probe (1) is provided in the rubber sleeve (8), a slider (9) is provided on the outer wall of the rubber sleeve (8) near the top thereof, a slide groove (10) adapted to the slider (9) is provided on the inner wall of the fixed tube (3) along its axial direction, and the cable (11) of the water level gauge probe (1) is fixed in the fixed tube (3) and the connecting tube (4) through a positioning ring (12).

6. The groundwater level meter probe for measuring water level in a civil pumped well according to claim 5, characterized in that: A fixing sleeve (13) is provided through the center of the positioning ring (12), and the cable (11) passes through the fixing sleeve (13) and is interference-fitted therewith. A notch (14) for the cable (11) to pass through is provided on the side walls of the positioning ring (12) and the fixing sleeve (13), and the notch (14) is provided in a trumpet shape from the fixing sleeve (13) to the positioning ring (12).

7. The groundwater level meter probe for measuring water level in a civil pumped well according to claim 6, characterized in that: An annular groove (15) is provided on the inner wall of the top end of the fixing tube (3) and the connecting tube (4) along the axial direction thereof, and at least one elastic column (16) is vertically provided in the annular groove (15). The elastic column (16) extends from the side wall of the annular groove (15). The positioning ring (12) is located in the annular groove (15) and is supported by the elastic column (16).

8. The groundwater level meter probe for measuring water level in a civil pumped well according to claim 6, characterized in that: The top surfaces of the positioning ring (12) and the rubber sleeve (8) are respectively provided with positioning cylinders (17), and the bottom surface of the positioning ring (12) is detachably connected to a guide rod (18). The guide rod (18) corresponds to and fits with the positioning cylinder (17), so that the positioning rings (12) between different connecting pipes (4) are connected through the guide rod (18), and the positioning ring (12) and the rubber sleeve (8) in the fixed pipe (3) are connected through the guide rod (18).

9. The groundwater level meter probe for measuring water level in a civil pumped well according to claim 4, characterized in that: A pressing piece (19) is obliquely provided on the outer wall of the connecting tube (4), and the pressing piece (19) is located above the limiting hole (7). A clamping block (20) is provided on the side of the pressing piece (19) facing the limiting hole (7), and the clamping block (20) corresponds to the wedge block (6).

10. The groundwater level meter probe for measuring water level in a civil pumped well according to claim 6, characterized in that: A strip-shaped opening (21) for the cable (11) to pass through is provided on the side wall of the connecting tube (4) along its axial direction, and the strip-shaped opening (21) is staggered with the notch (14).

Images