A groundwater depth measuring device

Abstract

The utility model discloses a kind of groundwater depth measuring devices, including rack, winding wheel, folding mechanism, collapsible support, meter counter, pulley and measuring rope, winding wheel is rotatably installed on rack, collapsible support includes pulley mounting support and meter counter wheel mounting support, it can be unfolded and stowed under the drive of folding mechanism, meter counter is installed on the second connecting arm of meter counter wheel mounting support, pulley is installed on the first connecting arm of pulley mounting support, measuring rope is led out from winding wheel and sequentially passes through meter counter and pulley, the head end of measuring rope is equipped with plumb bob. The utility model is convenient to fold the meter counter and pulley support that extend, thereby reduce storage space, avoid the process of moving transportation meter counter and pulley support knock.

Description

Technical Field

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

[0002] Groundwater depth measurement is a crucial foundational task in fields such as hydrogeological surveys, water resource management, and engineering construction. Its results directly impact assessments of groundwater resource distribution, dynamic changes, and development and utilization. Currently, the most common method for groundwater depth measurement is the rope method, which involves lowering a measuring rope with a plumb bob into an observation well. The length of the rope extending into the well when the plumb bob touches the water surface is measured, and this length represents the groundwater depth.

[0003] In the prior art, Chinese invention patent CN116147727A discloses a portable groundwater level measuring instrument. During measurement, the cable of the measuring instrument passes through the meter counter and pulley in sequence before being lowered into the measuring well. The meter counter and pulley need to be supported by outward-extending brackets. They cannot be folded during movement and transportation, occupy a large space, and are prone to collisions, especially the meter counter wheel, which is easily damaged. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a groundwater depth measuring device that allows for the folding of the extended meter counter and pulley support, thereby reducing storage space and preventing collisions between the meter counter and pulley support during transportation.

[0005] This utility model provides a groundwater depth measuring device, comprising: frame; A winding reel, which is rotatably mounted on the frame; A folding mechanism, comprising a sliding member and a driving member, wherein the sliding member is slidably mounted vertically at the front of the frame, and the driving member is used to drive the sliding member to move up and down; A foldable support bracket includes a pulley mounting bracket and a meter-counting wheel mounting bracket. The pulley mounting bracket includes two symmetrically arranged first swing arms and a first connecting arm. The rear ends of the two first swing arms are respectively hinged to the frame above the sliding member. The first connecting arm is connected between the front ends of the two first swing arms. The meter-counting wheel mounting bracket includes two symmetrically arranged second swing arms and a second connecting arm. One end of each second swing arm is correspondingly hinged to the middle of each first swing arm, and the other end of each second swing arm is respectively hinged to the sliding member. The second connecting arm is connected between the middle of the two second swing arms. A meter counter, which is mounted on the second connecting arm; A pulley, which is rotatably mounted on the first connecting arm; The measuring rope is led out from the winding wheel and passes sequentially through the meter counter and the pulley. A plumb bob is provided at the end of the measuring rope.

[0006] Furthermore, the frame includes a base plate, two side plates disposed on the upper left and right sides of the base plate, and a front baffle connecting the front portions of the two side plates, with a storage groove formed between the two side plates on the front side of the front baffle; The rear ends of the two first swing arms are respectively hinged to the inner sides of the two side plates. The sliding member is slidably mounted on the front baffle. One end of the two second swing arms is respectively hinged to the inner side of the two first swing arms, and the other end of the two second swing arms is respectively hinged to the outer sides of both ends of the sliding member.

[0007] Furthermore, the front baffle is provided with two guide grooves extending vertically in a symmetrical manner on the left and right sides. The sliding member is provided on the rear side of the front baffle. The two ends of the sliding member are provided with hinge seats that pass through the two guide grooves respectively. The two second swing arms are respectively hinged to the outside of the two hinge seats.

[0008] Furthermore, the driving component includes a lead screw and a drive motor. The rear side of the front baffle is provided with shaft seats mounted vertically opposite each other. The two ends of the lead screw are rotatably mounted on the two shaft seats respectively. The lead screw passes through the sliding member and is threadedly connected to it. The drive motor is used to drive the lead screw to rotate.

[0009] Furthermore, the two ends of the winding wheel are coaxially provided with rotating shafts that are rotatably mounted on the two side plates respectively.

[0010] Furthermore, it also includes a winding drive mechanism, which includes a winding motor, a driving wheel, a driven wheel, and a transmission belt. The winding motor is fixed on the base plate, and the output shaft of the winding motor passes through one side plate and is mounted on the driving wheel. The shaft on one side of the winding wheel passes through one side plate and is mounted on the driven wheel. The transmission belt is sleeved between the driving wheel and the driven wheel.

[0011] Furthermore, a water contact sensor is provided at the bottom of the plumb bob; It also includes a controller, which is electrically connected to the wound motor and the water contact sensor respectively.

[0012] Furthermore, the meter counter includes an encoder and a meter wheel. The second connecting arm is provided with a mounting plate, the encoder is fixed on the mounting plate, the meter wheel is installed at the output end of the encoder, and the measuring rope passes around the meter wheel.

[0013] Furthermore, it also includes a storage battery mounted on the frame for powering the electrical components of the device.

[0014] Furthermore, the bottom of the frame is provided with multiple rollers.

[0015] The beneficial effects of this utility model are reflected in: When using this device to measure groundwater depth, the pulley mounting bracket and the meter-counting wheel mounting bracket of the retractable support can be unfolded first by driving the retractable support through the folding mechanism. During unfolding, the control drive component drives the sliding component to slide upward, and the meter-counting wheel mounting bracket pushes the pulley mounting bracket to swing forward to the horizontal unfolded state. After the pulley mounting bracket and the meter-counting wheel mounting bracket are unfolded, the measuring rope on the winding wheel is led out and passes through the meter counter and pulley in sequence. Its head is vertically downward under the gravity of the plumb bob. Then, the position of the device is adjusted so that the plumb bob is in the center of the observation well. Then, the measuring rope is lowered through the winding wheel until the plumb bob is perpendicular to the groundwater level. The well contacts the groundwater surface, and the meter counter measures the length of the measuring rope as it is lowered to calculate the groundwater depth. After the measurement is completed, the measuring rope is wound up by a winding wheel. Once the rope is wound up, the control drive drives the sliding component to slide downwards. The meter wheel mounting bracket pulls the pulley mounting bracket downwards to a vertically retracted state. This facilitates the folding of the extended meter wheel mounting bracket and pulley mounting bracket, reducing storage space and preventing collisions and deformations during transportation. The retracted design also better protects the meter wheel and effectively prevents it from being damaged. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model; Figure 2 This is a longitudinal sectional view of an embodiment of the present utility model; Figure 3 This is a three-dimensional structural diagram of the concealed winding wheel and winding drive mechanism according to an embodiment of the present utility model. Figure 4 This is a three-dimensional structural diagram of the winding wheel and winding drive mechanism according to an embodiment of the present utility model.

[0018] In the attached diagram, 100-frame; 110-base plate; 120-side plate; 130-front baffle; 131-guide groove; 132-shaft seat; 140-roller; 210-winding wheel; 211-shaft; 220-winding drive mechanism; 221-winding motor; 222-driving wheel; 223-driven wheel; 224-transmission belt; 310-sliding component; 311-hinge seat; 320-driving component; 3 21-Lead screw; 322-Drive motor; 410-Pulley mounting bracket; 411-First swing arm; 412-First connecting arm; 420-Meter wheel mounting bracket; 421-Second swing arm; 422-Second connecting arm; 423-Mounting plate; 500-Meter counter; 510-Encoder; 520-Meter wheel; 600-Pulley; 700-Measuring rope; 710-Plumb bob; 800-Battery. Detailed Implementation

[0019] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0020] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0021] like Figures 1-4 As shown in the figure, this utility model embodiment provides a groundwater depth measuring device, including a frame 100, a winding wheel 210, a folding mechanism, a foldable support, a meter counter 500, a pulley 600, and a measuring rope 700.

[0022] The winding wheel 210 is rotatably mounted on the frame 100.

[0023] The folding mechanism includes a slider 310 and a drive 320. The slider 310 is vertically slidably mounted on the front of the frame 100, and the drive 320 is used to drive the slider 310 to move up and down.

[0024] The retractable bracket includes a pulley mounting bracket 410 and a meter-counting wheel mounting bracket 420. The pulley mounting bracket 410 includes two first swing arms 411 arranged symmetrically on the left and right and a first connecting arm 412. The rear ends of the two first swing arms 411 are respectively hinged to the frame 100 above the sliding member 310. The first connecting arm 412 is connected between the front ends of the two first swing arms 411. The meter-counting wheel mounting bracket 420 includes two second swing arms 421 arranged symmetrically and a second connecting arm 422. One end of each second swing arm 421 is correspondingly hinged to the middle of each first swing arm 411. The other end of each second swing arm 421 is respectively hinged to the sliding member 310. The second connecting arm 422 is connected between the middle of the two second swing arms 421.

[0025] The meter counter 500 is mounted on the second connecting arm 422.

[0026] The pulley 600 is rotatably mounted on the first connecting arm 412.

[0027] The measuring rope 700 is led out from the winding wheel 210 and passes through the meter counter 500 and pulley 600 in sequence. A plumb bob 710 is provided at the head end of the measuring rope 700.

[0028] When using this device to measure groundwater depth, the pulley mounting bracket 410 and the meter-counting wheel mounting bracket 420 of the retractable support can be unfolded first by driving the retractable support through the folding mechanism. During unfolding, the control drive 320 drives the sliding component 310 to slide upward, and the meter-counting wheel mounting bracket 420 pushes the pulley mounting bracket 410 to swing forward to the horizontal unfolded state. After the pulley mounting bracket 410 and the meter-counting wheel mounting bracket 420 are unfolded, the measuring rope 700 on the winding wheel 210 is led out and passes through the meter counter 500 and the pulley 600 in sequence. Its head is vertically downward under the gravity of the plumb bob 710. Then, the position of the device is adjusted so that the plumb bob 710 is in the center of the observation well. Then, the measuring rope 700 is lowered through the winding wheel 210 until the plumb bob 710 is lowered. The measuring device 500 contacts the groundwater surface of the observation well and measures the length of the measuring rope 700 as it is lowered, thereby calculating the depth of the groundwater. After the measurement is completed, the measuring rope 700 is wound up by the winding wheel 210. After the measuring rope 700 is wound up, the control drive 320 drives the sliding component 310 to slide downward. The measuring wheel mounting bracket 420 pulls the pulley mounting bracket 410 downward to swing down to a vertically retracted state. This makes it easier to fold up the extended measuring wheel mounting bracket 420 and pulley mounting bracket 410, thereby reducing the storage space and preventing the measuring wheel mounting bracket 420 and pulley mounting bracket 410 from being bumped and deformed during the movement and transportation. After being retracted, it can better protect the measuring wheel 520 and effectively prevent the measuring wheel 520 from being damaged.

[0029] In some embodiments, refer to Figure 1 The frame 100 includes a base plate 110, two side plates 120 located on the upper left and right sides of the base plate 110, and a front baffle 130 connected between the front parts of the two side plates 120. A storage groove is formed between the two side plates 120 on the front side of the front baffle 130.

[0030] The rear ends of the two first swing arms 411 are respectively hinged to the inner sides of the two side plates 120. The sliding member 310 is slidably mounted on the front baffle 130. One end of the two second swing arms 421 is respectively hinged to the inner side of the two first swing arms 411, and the other end of the two second swing arms 421 is respectively hinged to the outer sides of both ends of the sliding member 310.

[0031] With the above design, when the pulley mounting bracket 410 and the meter counter wheel mounting bracket 420 are folded up, they can be stored in the storage slot on the front side of the front baffle 130. After being stored up, the pulley mounting bracket 410 and the meter counter wheel mounting bracket 420 will not protrude from the front side of the frame 100. After being folded up, they are neater and more aesthetically pleasing, and can better protect the bracket, pulley 600 and meter counter 500.

[0032] Specifically, refer to Figure 3 Two guide grooves 131 extending vertically are symmetrically provided on the front baffle 130. The sliding member 310 is located on the rear side of the front baffle 130. The two ends of the sliding member 310 are provided with hinge seats 311 that pass through the two guide grooves 131 respectively. The two second swing arms 421 are respectively hinged to the outside of the two hinge seats 311.

[0033] Optionally, the drive component 320 includes a lead screw 321 and a drive motor 322. The rear side of the front baffle 130 is provided with upper and lower bearing seats 132. The two ends of the lead screw 321 are rotatably mounted on the two bearing seats 132 respectively. The lead screw 321 passes through the sliding member 310 and is threadedly connected to it. The drive motor 322 is used to drive the lead screw 321 to rotate.

[0034] In this embodiment, the sliding member 310 and the driving member 320 are located on the rear side of the front baffle 130, which will not obstruct the pulley mounting bracket 410 and the meter wheel mounting bracket 420, making reasonable use of space. At the same time, the sliding member 310 can be driven to move up and down by the drive motor 322 and the lead screw 321 to drive the pulley mounting bracket 410 and the meter wheel mounting bracket 420 to unfold and retract. The pulley mounting bracket 410 and the meter wheel mounting bracket 420 can be automatically locked when unfolded and retracted, so that they can be stably kept in the unfolded or retracted state.

[0035] In some embodiments, refer to Figure 1 and Figure 4 The two ends of the winding wheel 210 are coaxially provided with rotating shafts 211 respectively rotatably mounted on two side plates 120.

[0036] It is understood that the winding wheel 210 in this embodiment can be driven by hand or mechanically.

[0037] When mechanical drive is used, the device also includes a winding drive mechanism 220. The winding drive mechanism 220 includes a winding motor 221, a driving wheel 222, a driven wheel 223, and a transmission belt 224. The winding motor 221 is fixed on the base plate 110. The output shaft of the winding motor 221 passes through the side plate 120 on one side and is equipped with the driving wheel 222. The rotating shaft 211 on one side of the winding wheel 210 passes through the side plate 120 on one side and is equipped with the driven wheel 223. The transmission belt 224 is sleeved between the driving wheel 222 and the driven wheel 223. In this way, the winding motor 221 drives the winding wheel 210 to rotate forward and backward through the transmission belt 224, thereby realizing the winding and unwinding of the measuring rope 700.

[0038] Preferably, the bottom of the plumb bob 710 is provided with a water contact sensor. A water contact sensor is an electronic device that can detect whether an object is in contact with water (or other liquids), whether the liquid is present or not, or the liquid level. It can be of resistive, capacitive, optical, or other types, and is an existing technology, which will not be described in detail here.

[0039] The device also includes a controller, which is electrically connected to the wound motor 221 and the water contact sensor respectively. The controller can be a PLC or a relay.

[0040] It is understandable that the winding motor 221 and the controller can transmit signals via wired or wireless means, and the water contact sensor and the controller can transmit signals via wired means. In this case, the measuring rope 700 is a cable connecting the water contact sensor and the controller.

[0041] During groundwater depth measurement, the winding motor 221 drives the winding wheel 210 to lower the measuring rope 700. When the water contact sensor detects that the plumb bob 710 has come into contact with the groundwater, it sends a signal to the controller. After receiving the signal, the controller controls the winding motor 221 to stop working. At this time, the depth of the measuring rope 700 can be read by the meter counter 500, thereby obtaining the groundwater depth. After the measurement is completed, the winding motor 221 is controlled to rotate in the opposite direction to wind up the measuring rope 700.

[0042] In some embodiments, refer to Figure 1 and Figure 3 The meter counter 500 includes an encoder 510 and a meter wheel 520. A mounting plate 423 is provided on the second connecting arm 422. The encoder 510 is fixed on the mounting plate 423. The meter wheel 520 is installed at the output end of the encoder 510. The measuring rope 700 passes around the meter wheel 520.

[0043] When the measuring rope is lowered 700, it will drive the measuring wheel 520 to rotate. The encoder 510 counts the number of rotations of the measuring wheel 520. The length is obtained by converting the number of rotations of the measuring wheel 520 (circumference of measuring wheel 520 × number of rotations) and is directly displayed on the mechanical dial.

[0044] In some embodiments, refer to Figure 3 The device also includes a storage battery 800, which is mounted on the frame 100 and is used to power the electrical components of the device.

[0045] It is understood that in other embodiments, the device may also be powered by an external power source.

[0046] In some embodiments, refer to Figure 1 To facilitate the movement of the device, the bottom of the frame 100 is provided with multiple casters 140.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A groundwater depth measuring device, characterized in that, include: frame; A winding reel, which is rotatably mounted on the frame; A folding mechanism, comprising a sliding member and a driving member, wherein the sliding member is slidably mounted vertically at the front of the frame, and the driving member is used to drive the sliding member to move up and down; A foldable support bracket includes a pulley mounting bracket and a meter-counting wheel mounting bracket. The pulley mounting bracket includes two symmetrically arranged first swing arms and a first connecting arm. The rear ends of the two first swing arms are respectively hinged to the frame above the sliding member. The first connecting arm is connected between the front ends of the two first swing arms. The meter-counting wheel mounting bracket includes two symmetrically arranged second swing arms and a second connecting arm. One end of each second swing arm is correspondingly hinged to the middle of each first swing arm, and the other end of each second swing arm is respectively hinged to the sliding member. The second connecting arm is connected between the middle of the two second swing arms. A meter counter, which is mounted on the second connecting arm; A pulley, which is rotatably mounted on the first connecting arm; The measuring rope is led out from the winding wheel and passes sequentially through the meter counter and the pulley. A plumb bob is provided at the end of the measuring rope.

2. The groundwater depth measuring device according to claim 1, characterized in that, The frame includes a base plate, two side plates located on the upper left and right sides of the base plate, and a front baffle connecting the front parts of the two side plates. A storage groove is formed between the two side plates on the front side of the front baffle. The rear ends of the two first swing arms are respectively hinged to the inner sides of the two side plates. The sliding member is slidably mounted on the front baffle. One end of the two second swing arms is respectively hinged to the inner side of the two first swing arms, and the other end of the two second swing arms is respectively hinged to the outer sides of both ends of the sliding member.

3. The groundwater depth measuring device according to claim 2, characterized in that, The front baffle has two vertically extending guide grooves symmetrically arranged on the left and right sides. The sliding member is located on the rear side of the front baffle. The two ends of the sliding member are provided with hinge seats that pass through the two guide grooves respectively. The two second swing arms are respectively hinged to the outside of the two hinge seats.

4. The groundwater depth measuring device according to claim 3, characterized in that, The driving component includes a lead screw and a drive motor. The rear side of the front baffle is provided with two opposing bearings. The two ends of the lead screw are rotatably mounted on the two bearings respectively. The lead screw passes through the sliding member and is threadedly connected to it. The drive motor is used to drive the lead screw to rotate.

5. The groundwater depth measuring device according to claim 2, characterized in that, The two ends of the winding wheel are coaxially provided with rotating shafts that are rotatably mounted on the two side plates respectively.

6. The groundwater depth measuring device according to claim 5, characterized in that, It also includes a winding drive mechanism, which includes a winding motor, a driving wheel, a driven wheel, and a transmission belt. The winding motor is fixed on the base plate. The output shaft of the winding motor passes through one side plate and is mounted on the driving wheel. The shaft on one side of the winding wheel passes through one side plate and is mounted on the driven wheel. The transmission belt is sleeved between the driving wheel and the driven wheel.

7. The groundwater depth measuring device according to claim 6, characterized in that, A water contact sensor is installed at the bottom of the plumb bob; It also includes a controller, which is electrically connected to the wound motor and the water contact sensor, respectively.

8. The groundwater depth measuring device according to claim 1, characterized in that, The meter counter includes an encoder and a meter wheel. A mounting plate is provided on the second connecting arm. The encoder is fixed on the mounting plate. The meter wheel is installed at the output end of the encoder. The measuring rope passes around the meter wheel.

9. The groundwater depth measuring device according to claim 1, characterized in that, It also includes a storage battery, which is mounted on the frame and used to power the electrical components of the device.

10. The groundwater depth measuring device according to claim 1, characterized in that, The bottom of the frame is equipped with multiple rollers.

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