A multifunctional groundwater measuring device

Abstract

The utility model discloses a kind of multifunctional groundwater measuring devices, comprising: protective shell, its bottom is set to opening, its top is fixedly connected with U-shaped handle;Annular support plate is fixedly connected in protective shell bottom, rectangular guide hole is all set on its four side inner walls. The utility model is supported outside wellhead of different specifications by a series of structures being set, four-way synchronous expansion or contraction adjustment mode is clamped, and when clamping support, automatically keep measuring rope in well center position, avoid the phenomenon that the irregular bending of subsequent edge pasting lowering measurement caused by uneven inside side of well leads to the phenomenon of the irregular bending of subsequent edge pasting lowering measurement, improve use applicability and measurement accuracy, and it is convenient to automatically alarm and remind personnel when measuring rope is lowered to groundwater level, reduce the phenomenon of measuring rope serious over-discharge, further improve measurement accuracy, can be safely stored and protected after detection Water float triggers alarm reminding component, avoid its direct exposure to pollution or damage phenomenon.

Description

Technical Field

[0001] This utility model relates to the field of groundwater level measurement technology, specifically a multifunctional groundwater measurement device. Background Technology

[0002] In groundwater level measurement work in the hydrogeological environment, groundwater levels are generally measured in wells (logging wells, pre-drilled side holes). The measuring rope method is a commonly used method in groundwater level exploration and measurement work. A float is lowered to the groundwater surface using a graduated measuring rope, and the groundwater level is determined by observing the scale. The measuring rope is supported by a bracket to achieve the effect of groundwater level measurement. In the measurement work, dozens of wells of various diameters are measured every day (some well openings are 180mm, some are 1000mm, and some are 500mm).

[0003] Existing groundwater measurement devices have the following shortcomings in use: 1. They lack a mechanism for centering and supporting the measuring rope at wellheads of different diameters. Since the sidewalls of various wells, such as water wells, are inevitably uneven, directly lowering the measuring rope along the edge can cause the rope to bend due to protrusions, resulting in serious measurement deviations and reducing measurement accuracy; 2. They do not have an automatic alarm reminder when the water level is reached. In the dim light underground, it is difficult for personnel to judge whether the water level has been reached, which can easily lead to over-release of the measuring rope and reduce measurement accuracy. In view of this, this application proposes a multifunctional groundwater measurement device to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a multifunctional groundwater measurement device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multifunctional groundwater measuring device, comprising:

[0006] The protective case has an opening at the bottom and a U-shaped handle fixedly connected to the top;

[0007] An annular support plate is fixedly connected to the bottom of the protective shell, and rectangular guide holes are provided on its four inner walls.

[0008] The support sleeve has an outer edge integrally provided at its bottom outer side and is fixedly connected to the inner side of the annular support plate. Its top is set as a conical structure and is fixedly connected to a guide rope sleeve.

[0009] The unwinding assembly is installed between the inner walls of both sides of the protective shell. A measuring rope is fixed to its outer side and wound around it. A scale line is provided on one side of the measuring rope. The bottom end of the measuring rope movably passes through the guide rope sleeve and extends into the support sleeve. The unwinding assembly is used to release or wind up the measuring rope.

[0010] The water-floating alarm component has a movable sleeve inside the upper part of the support sleeve and is fixedly connected to the bottom end of the measuring rope. The water-floating alarm component is used to automatically move downward under the action of gravity when the measuring rope is released, and to automatically alarm personnel when it moves to the groundwater surface in the well, so that personnel can be notified in time to stop the release work. In conjunction with the scale line on one side of the measuring rope, it allows personnel to clearly and accurately judge the groundwater level. It is also used to automatically store and hide the measuring rope inside the support sleeve for protection when it is subsequently wound up.

[0011] The four-way expansion and contraction clamp centering support assembly is installed in four rectangular guide holes and rotatably sleeved on the support sleeve. A drive motor with an output shaft fixedly connected to the four-way expansion and contraction clamp centering support assembly is fixedly installed on the inner wall of the left side of the protective shell. The four-way expansion and contraction clamp centering support assembly is used to synchronously expand or contract the clamp diameter in four directions when the drive motor is started, so as to support the outside of the well logging with clamps of different specifications. It is also used to ensure that the measuring rope is in the center position of the well logging when the clamp is supporting it, so as to avoid the phenomenon that the unevenness of the inside side of the well logging causes irregular bending when lowering it for measurement, which affects the measurement accuracy.

[0012] Preferably, the winding and unwinding assembly includes a winding reel and a brake motor. The winding reel is rotatably mounted on the inner wall of the left side of the protective shell. Both sides of the outer side of the winding reel are integrally provided with annular anti-detachment protrusions. The brake motor is fixedly mounted on the inner wall of the right side of the protective shell. The output shaft of the brake motor is fixedly connected to the middle of the right side of the winding reel. The measuring rope is wound around the outer side of the winding reel, and the top end of the measuring rope is fixedly connected to the outer side of the winding reel.

[0013] Preferably, the water-floating touch alarm component includes a round box-shaped counterweight, a hollow float, and an electronic buzzer. The round box-shaped counterweight is movably fitted inside the support sleeve. The top of the round box-shaped counterweight is configured with a conical sealing structure and is pressed tightly against the upper inner side of the support sleeve. The hollow float is slidably fitted inside the round box-shaped counterweight. The electronic buzzer is fixedly attached to the top of the round box-shaped counterweight with double-sided adhesive. The electronic buzzer is fixedly connected to a support rod. The bottom end of the support rod movably passes into the electronic buzzer and is fixedly connected to a waterproof tactile switch. The waterproof tactile switch is electrically connected to the electronic buzzer through a wire. The bottom end of the measuring rope is fixedly connected to the top of the round box-shaped counterweight.

[0014] Preferably, the four-way expansion and contraction card support centering component includes four L-shaped card support rods, four screws, four bevel gears, a bevel gear ring, an external gear ring, and a first gear. The four L-shaped card support rods are slidably sleeved in the corresponding rectangular guide holes. The two opposite L-shaped card support rods are symmetrically arranged. Anti-slip rubber blocks are glued and fixed on the inner wall of the opposing side of the two opposite L-shaped card support rods. The four screws are rotatably installed in the corresponding rectangular guide holes, and the four L-shaped card support rods are threaded onto the corresponding screws.

[0015] The four screws extend into the annular support plate at their closest ends and are fixedly connected to the corresponding bevel gears. The two bevel gears are symmetrically arranged. The bevel gear ring is movably sleeved on the outside of the support sleeve and meshes with the top of the four bevel gears. The outer gear ring is rotatably sleeved on the outside of the support sleeve and fixedly connected to the top of the bevel gear ring. The first gear meshes with the left side of the outer gear ring, and the top of the first gear is fixedly connected to the bottom end of the output shaft of the drive motor.

[0016] Preferably, the inner wall of the rear side of the protective shell is provided with multiple vent holes, and a filter screen adapted to the multiple vent holes is fixedly connected to the rear side of the protective shell.

[0017] Preferably, a lithium battery is fixedly installed on the inner right side of the protective shell, and both the brake motor and the drive motor are electrically connected to the lithium battery.

[0018] Preferably, each of the four L-shaped support rods has a threaded groove at one end, and the threaded groove is threadedly connected to the corresponding screw.

[0019] Preferably, the hollow float has limit grooves on both sides, and the round box-shaped counterweight has limit blocks fixedly connected to the inner walls on both sides, with the limit blocks slidably connected to the corresponding limit grooves.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. Through the combination of the protective shell, annular support plate, support sleeve and four-way expansion and contraction clamping center support assembly, it can clamp and support the outside of logging wellheads of different specifications in a four-way synchronous expansion or contraction adjustment manner. When clamping support, it automatically keeps the measuring rope in the center position of the logging well, realizing the effect of convenient and stable center support for the measuring rope at logging wellheads of different diameters. It avoids the phenomenon that unevenness on the inside side of the logging well causes irregular bending during subsequent edge-to-edge measurement, which affects the measurement accuracy, thus improving the applicability and measurement accuracy.

[0022] 2. Through the combination of the set support sleeve, protective shell, guide rope sleeve, measuring rope, winding and unwinding assembly and water-floating touch alarm reminder assembly, it can automatically alarm and remind personnel when the measuring rope is lowered to the groundwater level, so that personnel can be notified in time to stop the release work. In conjunction with the scale line on one side of the measuring rope, it allows personnel to clearly and accurately judge the groundwater level, avoiding the phenomenon of serious measurement errors caused by excessive release of the measuring rope due to failure to be notified in time, and further improving the measurement accuracy.

[0023] Furthermore, it can safely store and protect the water-floating alarm reminder component after testing, preventing it from being directly exposed to the outside and becoming dirty or damaged, thus improving its safety when carrying it after use.

[0024] This utility model features a series of structures that allow for simultaneous expansion or contraction in four directions to clamp and support the measuring rope on the outside of wellheads of different specifications. When clamped, the rope is automatically kept centered within the well, preventing unevenness on the well's inner edges from causing irregular bending during subsequent lowering and measurement, thus improving accuracy. It also features an automatic alarm to alert personnel when the rope reaches the groundwater level, reducing the risk of excessive rope release and further enhancing measurement accuracy. Furthermore, it allows for the safe storage and protection of the water-floating alarm component after testing, preventing direct exposure to contamination or damage. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a multifunctional groundwater measuring device proposed in this utility model;

[0026] Figure 2 This is a bottom view of the structure of a multifunctional groundwater measuring device proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the front sectional view of a multifunctional groundwater measuring device proposed in this utility model;

[0028] Figure 4 For the present utility model Figure 3 A magnified structural diagram of part A in the diagram.

[0029] In the diagram: 1. Protective shell; 101. Brake motor; 102. Rope reel; 103. Measuring rope; 2. Annular support plate; 201. Rectangular guide hole; 202. Screw; 203. L-shaped clamping rod; 204. Bevel gear; 205. Bevel gear ring; 206. External gear ring; 207. First gear; 208. Drive motor; 3. Support sleeve; 301. Rope guide sleeve; 302. Round box-shaped counterweight; 303. Hollow float; 304. Electronic buzzer; 305. Waterproof tactile switch. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] like Figures 1 to 4 As shown in this embodiment, a multifunctional groundwater measuring device includes:

[0032] The protective shell 1 has an opening at the bottom and a U-shaped handle fixedly connected to its top.

[0033] An annular support plate 2 is fixedly connected to the bottom of the protective shell 1, and rectangular guide holes 201 are provided on its four inner walls.

[0034] The support sleeve 3 has an outer edge integrally provided at its bottom outer side and is fixedly connected to the inner side of the annular support plate 2. Its top is set as a conical structure and is fixedly connected to a guide rope sleeve 301.

[0035] The winding assembly is installed between the inner walls of both sides of the protective shell 1. The measuring rope 103 is fixed on the outside and wound around it. A scale line is provided on one side of the measuring rope 103. The bottom end of the measuring rope 103 moves through the guide rope sleeve 301 and extends into the support sleeve 3. The winding assembly is used to release or wind up the measuring rope 103.

[0036] The water-floating alarm component has a movable sleeve inside the upper part of the support sleeve 3 and is fixedly connected to the bottom end of the measuring rope 103. The water-floating alarm component is used to automatically move downward under the action of gravity when the measuring rope 103 is released, and to automatically alarm personnel by using buoyancy when it moves down to the groundwater surface in the well, so that personnel can be notified in time to stop the release work. In conjunction with the scale line on one side of the measuring rope 103, it allows personnel to clearly and accurately judge the groundwater level. It is also used to automatically store and hide the measuring rope 103 inside the support sleeve 3 for protection when it is subsequently wound up.

[0037] The four-way expansion and contraction clamp centering support assembly is installed in four rectangular guide holes 201 and rotatably sleeved on the support sleeve 3. A drive motor 208 with an output shaft fixedly connected to the four-way expansion and contraction clamp centering support assembly is fixedly installed on the inner wall of the left side of the protective shell 1. The four-way expansion and contraction clamp centering support assembly is used to synchronously expand or contract the clamp diameter in four directions when the drive motor 208 is started, so that the clamp can be used to support the outside of the well logging of different specifications. It is also used to ensure that the measuring rope 103 is in the center position of the well logging when the clamp is supported, so as to avoid the phenomenon that the unevenness of the inside side of the well logging causes irregular bending when lowering the measurement along the edge, which affects the measurement accuracy.

[0038] In this embodiment, multiple ventilation holes are provided on the inner wall of the rear side of the protective shell 1. A filter screen adapted to the multiple ventilation holes is fixedly connected to the rear side of the protective shell 1, which facilitates the connection between the inside and outside of the protective shell 1 for normal internal ventilation and heat dissipation. Both sides of the guide rope sleeve 301 are fixedly connected to the top of the support sleeve 3 with L-shaped supports for support.

[0039] Furthermore, such as Figure 3 and 4As shown, the winding assembly includes a winding wheel 102 and a brake motor 101. The winding wheel 102 is rotatably mounted on the inner left side of the protective shell 1. Both sides of the outer side of the winding wheel 102 are integrally provided with annular anti-detachment protrusions. The brake motor 101 is fixedly mounted on the inner right side of the protective shell 1. The output shaft of the brake motor 101 is fixedly connected to the middle of the right side of the winding wheel 102. The measuring rope 103 is wound around the outer side of the winding wheel 102. The top end of the measuring rope 103 is fixedly connected to the outer side of the winding wheel 102.

[0040] In this embodiment, a support shaft is fixedly connected to the inner left side of the protective shell 1, and a first bearing is fixedly connected to the left side of the rope winding wheel 102. The inner ring of the first bearing is fixedly fitted to the outer side of the support shaft, which achieves the effect of rotating and installing the rope winding wheel 102.

[0041] In this embodiment, the rope winding wheel 102 and the brake motor 101 work together to drive the rope winding wheel 102 to rotate, thereby releasing or winding the measuring rope 103.

[0042] Furthermore, such as Figure 2 , 3 As shown in Figure 4, the water-floating touch alarm component includes a round box-shaped counterweight 302, a hollow float 303, and an electronic buzzer 304. The round box-shaped counterweight 302 is movably fitted inside the support sleeve 3. The top of the round box-shaped counterweight 302 is set with a conical sealing structure and is pressed tightly against the upper inner side of the support sleeve 3. The hollow float 303 is slidably fitted inside the round box-shaped counterweight 302. The electronic buzzer 304 is fixedly attached to the top of the round box-shaped counterweight 302 by double-sided adhesive. The electronic buzzer 304 is fixedly connected to a support rod. The bottom end of the support rod is movably inserted into the electronic buzzer 304 and fixedly connected to a waterproof tactile switch 305. The waterproof tactile switch 305 is electrically connected to the electronic buzzer 304 through a wire. The bottom end of the measuring rope 103 is fixedly connected to the top of the round box-shaped counterweight 302.

[0043] In this embodiment, limit grooves are provided on both sides of the hollow float 303, and limit blocks are fixedly connected to the inner walls of both sides of the round box-shaped counterweight 302. The limit blocks are slidably connected to the corresponding limit grooves, which can limit the hollow float 303 and prevent it from falling off. The top inner wall of the round box-shaped counterweight 302 is provided with a movable through hole, and the support rod is located in the movable through hole. The inner diameter of the movable through hole is larger than the outer diameter of the waterproof tactile switch 305.

[0044] In this embodiment, the circular box-shaped counterweight 302, hollow float 303, electronic buzzer 304, support rod, and waterproof tactile switch 305 work together to gradually reduce the tension on the circular box-shaped counterweight 302 when the measuring rope 103 is released. At this time, under the action of gravity, the circular box-shaped counterweight 302 moves downward from the support sleeve 3 and gradually moves down to the depth of the well. When the circular box-shaped counterweight 302 moves down to the groundwater surface, it also drives the hollow float. When 303 moves down to the water level, under the action of buoyancy, the hollow float 303 is initially supported by the water and stops moving. At this point, the cylindrical counterweight 302, which continues to move down, slides downwards on the hollow float 303. The cylindrical counterweight 302, through the electronic buzzer 304, causes the waterproof tactile switch 305 to press downwards against the top of the hollow float 303, thus actuating the waterproof tactile switch 305 and activating the electronic buzzer 304 to provide a loud alert to personnel. This design allows personnel to promptly detect when the water level is reached and close the brake motor 101. When the measuring rope 103 is released, it automatically moves downwards under gravity and automatically alarms when it reaches the groundwater level within the well, allowing personnel to stop the release in time. Combined with the scale lines on one side of the measuring rope 103, this enables personnel to clearly and accurately determine the groundwater level, preventing serious measurement errors caused by excessive release of the measuring rope 103 due to delayed detection, thus improving measurement accuracy. Subsequently, when the measuring rope 103 is retracted, the circular counterweight 302 is lifted, causing the circular counterweight 302 and its alarm structure to move upwards and be safely stored inside the support sleeve 3. This is achieved by pressing the upper conical slope of the circular counterweight 302 against the upper inner slope of the support sleeve 3, securing it in place. This ensures the safe storage and protection of the water-floating alarm component after detection, improving safety during transport.

[0045] Furthermore, such as Figure 1 , 2As shown in Figures 3 and 4, the four-way expanding and contracting clamp support assembly includes four L-shaped clamping rods 203, four screws 202, four bevel gears 204, a bevel gear ring 205, an external gear ring 206, and a first gear 207. The four L-shaped clamping rods 203 are slidably fitted into corresponding rectangular guide holes 201. Two opposing L-shaped clamping rods 203 are symmetrically arranged. Anti-slip rubber blocks are adhered and fixed to the inner walls of the opposing sides of the two opposing L-shaped clamping rods 203. The four screws 202 are rotatably installed in their respective rectangular guide holes 201. The four L-shaped clamping rods 203... 03 are threaded onto the corresponding screws 202 respectively; the near ends of the four screws 202 extend into the annular support plate 2 and are fixedly connected to the corresponding bevel gears 204. The two bevel gears 204 are symmetrically arranged. The bevel gear ring 205 is movably sleeved on the outside of the support sleeve 3 and meshes with the top of the four bevel gears 204. The outer gear ring 206 is rotatably sleeved on the outside of the support sleeve 3 and is fixedly connected to the top of the bevel gear ring 205. The first gear 207 meshes with the left side of the outer gear ring 206. The top of the first gear 207 is fixedly connected to the bottom end of the output shaft of the drive motor 208.

[0046] In this embodiment, threaded grooves are provided at the adjacent ends of the four L-shaped support rods 203. The threaded grooves are threadedly connected to the corresponding screws 202. The threaded connection between the screws 202 and the threaded grooves facilitates the lateral displacement of the corresponding L-shaped support rods 203 when the screws 202 rotate. A limiting groove is provided on the inner top wall of the L-shaped support rod 203. A limiting slider is fixedly connected to the inner bottom wall of the rectangular guide hole 201 and is slidably connected to the limiting groove, which limits and prevents the L-shaped support rod 203 from detaching. A second bearing is fixedly connected between the inner top wall and the inner bottom wall of the rectangular guide hole 201. The inner ring of the second bearing is fixedly connected to the outer side of the corresponding screw 202, which enables the screw 202 to be rotated and installed. Two third bearings are fixedly sleeved inside the outer gear ring 206. The inner ring of the third bearing is fixedly sleeved to the outer side of the support sleeve 3, which enables the outer gear ring 206 to be rotated and installed.

[0047] In this embodiment, four L-shaped support rods 203, four screws 202, four bevel gears 204, a bevel gear ring 205, an external gear ring 206, and a first gear 207 work together. A drive motor 208 drives the first gear 207 to rotate, which in turn drives the external gear ring 206 to rotate. The external gear ring 206 then drives the bevel gear ring 205 to rotate, which in turn drives the four bevel gears 204 meshing with it to rotate. Since the two opposite bevel gears 204 are symmetrically arranged, their rotation directions are opposite. At this time, the bevel gears 204 drive the four screws 202 to rotate, and the two opposite screws 202 rotate in opposite directions. When the four screws 202 rotate, they drive the four L-shaped support rods 203 to expand outward synchronously. By moving or retracting inward, the four L-shaped clamping rods 203 can be simultaneously expanded outward or retracted inward to adjust the inner diameter of the clamping support formed by the four L-shaped clamping rods 203. During measurement, the four L-shaped clamping rods 203 can be adjusted to a suitable size for clamping on the outer side of the top of the well of the corresponding specification, or directly enlarged and then retracted to achieve four-way clamping on the outer side of the top of the well. This achieves the effect of convenient clamping and support on the outer side of wells of different specifications during measurement. Moreover, by using the four-way synchronous adjustable or clamping support method, the measuring rope 103 can be automatically kept in the center position of the well during clamping, avoiding the phenomenon that unevenness on the inner side of the well causes irregular bending during measurement when lowering it to the edge, which affects the measurement accuracy, and further improves the measurement accuracy.

[0048] Furthermore, a lithium battery is fixedly installed on the inner right side of the protective shell 1, and both the brake motor 101 and the drive motor 208 are electrically connected to the lithium battery.

[0049] It should be noted that: the electronic buzzer 304 preferably uses the HND-2319 high-frequency buzzer with built-in power supply; the lithium battery preferably uses the Lunqu Technology P760S lithium battery with integrated charge and discharge protection function, which can safely supply power to the drive motor 208 and the brake motor 101; both the drive motor 208 and the brake motor 101 are equipped with motor switches connected by wires. The safe position of the two motor switches is preferably the top of the protective shell 1 and located inside the U-shaped handle, so that personnel can directly perform the corresponding start and stop control operations of the motors from the top; the technical solution of completing the start and stop control by connecting with the motor switches through flexible wires is a well-known and mature technical means in this field, and its specific working principle and conventional wire connection method will not be described in detail here.

[0050] The usage method of this embodiment is as follows: When using the multifunctional groundwater measuring device, the operator starts the drive motor 208 to drive the first gear 207 to rotate. The first gear 207 drives the outer gear ring 206 to rotate, which in turn drives the bevel gear ring 205 to rotate. The bevel gear ring 205 drives the four bevel gears 204 meshing with it to rotate. Since the two opposite bevel gears 204 are symmetrically arranged, their rotation directions are opposite. At this time, the bevel gears 204 drive the four screws 202 to rotate, and the two opposite screws 202 rotate in opposite directions. When the four screws 202 rotate, they drive the four L-shaped retaining rods 203 to expand outward or contract inward synchronously. 03 The device can be adjusted by simultaneously expanding outward or contracting inward, allowing for adjustment of the inner diameter of the clamping support formed by the four L-shaped clamping rods 203. During measurement, the four L-shaped clamping rods 203 can be adjusted to a suitable size for clamping on the outer side of the top of the corresponding well logging device, or directly enlarged and then contracted back to achieve four-way clamping on the outer side of the top of the well logging device. This achieves the effect of convenient clamping and support on the outer side of well logging devices of different sizes during measurement. Furthermore, by using the four-way synchronous adjustable or clamping support method, the measuring rope 103 can be automatically kept in the center position of the well logging device when clamping on well logging devices of different diameters. This avoids the phenomenon that unevenness on the inner side of the well logging device causes irregular bending during subsequent edge-to-edge measurement, which affects the measurement accuracy and improves the measurement precision.

[0051] When measuring the water level, the operator starts the brake motor 101 in the forward direction, causing it to drive the rope reel 102 to rotate and release the measuring rope 103. As the measuring rope 103 is released, the tension on the circular box-shaped counterweight 302 is gradually reduced. At this time, under the action of gravity, the circular box-shaped counterweight 302 moves downward from the support sleeve 3 and gradually moves deeper into the well. When the circular box-shaped counterweight 302 moves down to the groundwater surface, it also drives the hollow float 303 to move down to the water level. At this time, under the action of buoyancy, the hollow float 303 is first supported by the water and stops moving downward. The circular box-shaped counterweight 302, which continues to move downward, slides down on the hollow float 303. The circular box-shaped counterweight 302 is activated by the electronic buzzer 304. The waterproof tactile switch 305 is pressed downward against the top of the hollow float 303, causing the waterproof tactile switch 305 to be activated and control the electronic buzzer 304 to sound a loud alarm, so that the personnel can be notified in time that the water level has been reached and operate the brake motor 101 to close. This achieves the effect of the measuring rope 103 automatically moving downward under the action of gravity when it is released, and automatically alarming the personnel when it moves to the groundwater surface in the well, so that the personnel can be notified in time to stop the release. In conjunction with the scale line on one side of the measuring rope 103, the personnel can clearly and accurately judge the groundwater level, avoid the phenomenon of serious measurement error caused by the failure to know in time and the excessive release of the measuring rope 103, and improve the measurement accuracy.

[0052] After measurement, the operator reverses the start of the brake motor 101, causing it to drive the rope reel 102 to rotate and wind up the measuring rope 103. As the measuring rope 103 is wound up, the round box-shaped counterweight 302 is lifted, causing the round box-shaped counterweight 302 and its alarm structure to move upward and be stored and protected inside the support sleeve 3. This process continues until the upper conical slope of the round box-shaped counterweight 302 is pressed tightly against the upper slope of the inner side of the support sleeve 3, thus achieving the effect of safely storing and protecting the water-floating alarm reminder component after testing. This prevents it from being directly exposed to the outside and being contaminated or damaged, improving safety when carrying it after use.

[0053] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multifunctional groundwater measuring device, comprising a protective shell (1), characterized in that: include: The protective shell (1) has an opening at the bottom and a U-shaped handle fixedly connected to its top; An annular support plate (2) is fixedly connected to the bottom of the protective shell (1), and rectangular guide holes (201) are provided on the inner walls of its four sides; The support sleeve (3) has an outer edge integrally provided at its bottom outer side and is fixedly connected to the inner side of the annular support plate (2). Its top is set as a conical structure and is fixedly connected to a guide rope sleeve (301). The winding assembly is installed between the inner walls on both sides of the protective shell (1). A measuring rope (103) is fixed on its outer side and wound around it. A scale line is provided on one side of the measuring rope (103). The bottom end of the measuring rope (103) moves through the guide rope sleeve (301) and extends into the support sleeve (3). The water-floating touch alarm reminder component has an active sleeve on the upper part of the inner side of the support sleeve (3) and is fixedly connected to the bottom end of the measuring rope (103); The four-way expansion and contraction card support centering component is installed in four rectangular guide holes (201) and rotated on the support sleeve (3). The protective shell (1) has a drive motor (208) with the output shaft fixedly connected to the four-way expansion and contraction card support centering component.

2. The multifunctional groundwater measuring device according to claim 1, characterized in that: The winding assembly includes a winding wheel (102) and a brake motor (101). The winding wheel (102) is rotatably mounted on the inner left side of the protective shell (1). Both sides of the outer side of the winding wheel (102) are integrally provided with annular anti-detachment protrusions. The brake motor (101) is fixedly mounted on the inner right side of the protective shell (1). The output shaft of the brake motor (101) is fixedly connected to the middle of the right side of the winding wheel (102). The measuring rope (103) is wound around the outer side of the winding wheel (102), and the top end of the measuring rope (103) is fixedly connected to the outer side of the winding wheel (102).

3. The multifunctional groundwater measuring device according to claim 1, characterized in that: The water-floating touch alarm component includes a round box-shaped counterweight (302), a hollow float (303), and an electronic buzzer (304). The round box-shaped counterweight (302) is movably fitted inside the support sleeve (3). The top of the round box-shaped counterweight (302) is configured with a conical sealing structure and is pressed tightly against the upper inner side of the support sleeve (3). The hollow float (303) is slidably fitted inside the round box-shaped counterweight (302). The electronic buzzer... (304) is fixed to the top of the round box-shaped counterweight (302) by double-sided adhesive. The electronic buzzer (304) is fixedly connected to a support rod. The bottom end of the support rod is movably inserted into the electronic buzzer (304) and fixedly connected to a waterproof tactile switch (305). The waterproof tactile switch (305) is electrically connected to the electronic buzzer (304) through a wire. The bottom end of the measuring rope (103) is fixedly connected to the top of the round box-shaped counterweight (302).

4. The multifunctional groundwater measuring device according to claim 1, characterized in that: The four-way expansion and contraction card support centering support assembly includes four L-shaped card support rods (203), four screws (202), four bevel gears (204), a bevel gear ring (205), an external gear ring (206), and a first gear (207). The four L-shaped card support rods (203) are slidably sleeved in the corresponding rectangular guide holes (201). The two opposite L-shaped card support rods (203) are symmetrically arranged. Anti-slip rubber blocks are glued and fixed on the inner wall of the opposing side of the two opposite L-shaped card support rods (203). The four screws (202) are rotatably installed in the corresponding rectangular guide holes (201). The four L-shaped card support rods (203) are threaded onto the corresponding screws (202). The four screws (202) extend into the annular support plate (2) at their closest ends and are fixedly connected to the corresponding bevel gears (204). The two bevel gears (204) are symmetrically arranged. The bevel gear ring (205) is movably sleeved on the outside of the support sleeve (3) and meshes with the top of the four bevel gears (204). The outer gear ring (206) is rotatably sleeved on the outside of the support sleeve (3) and fixedly connected to the top of the bevel gear ring (205). The first gear (207) meshes with the left side of the outer gear ring (206). The top of the first gear (207) is fixedly connected to the bottom end of the output shaft of the drive motor (208).

5. A multifunctional groundwater measuring device according to claim 1, characterized in that: The protective shell (1) has multiple ventilation holes on its rear inner wall, and a filter screen that matches the multiple ventilation holes is fixedly connected to the rear side of the protective shell (1).

6. A multifunctional groundwater measuring device according to claim 2, characterized in that: A lithium battery is fixedly installed on the inner right side of the protective shell (1), and the brake motor (101) and the drive motor (208) are both electrically connected to the lithium battery.

7. A multifunctional groundwater measuring device according to claim 4, characterized in that: Each of the four L-shaped support rods (203) has a threaded groove at one end, and the threaded groove is threaded to the corresponding screw (202).

8. A multifunctional groundwater measuring device according to claim 3, characterized in that: The hollow float (303) has limit grooves on both sides, and the round box-shaped counterweight (302) has limit blocks fixedly connected to the inner walls on both sides, with the limit blocks slidingly connected to the corresponding limit grooves.

Images