Auxiliary device for measuring underground water level

Abstract

The utility model provides an underground water level measuring auxiliary device. The underground water level measuring auxiliary device comprises a support, a winding shaft, a measuring belt and a balancing weight. The support is provided with a supporting arm, and the supporting arm is provided with a through hole and a centering component. The winding shaft is rotationally arranged above the supporting arm and connected with a rotation driving component. The measuring tape is wound on the winding shaft, passes through the through hole, extends out and is connected with a floating block; a locking structure is arranged between the balancing weight and the supporting arm; a groove is formed in the upper side surface of the floating block, so that when the balancing weight applies pressure to the groove, the floating block can sink into water and collect an underground water sample. Meanwhile, the rotation of the winding shaft is controlled by rotating the driving component, and the underground water level depth can be measured while sampling is completed in cooperation with the control of an operator on the straightening degree of the measuring belt. According to the underground water level measuring and taking auxiliary device, underground water level depth measurement and underground water sampling can be rapidly completed, the number of tools needing to be carried by operators is reduced, and the execution efficiency of underground water level measuring and taking operation is ensured.

Description

Technical Field

[0001] This application belongs to the field of groundwater monitoring technology, specifically relating to an auxiliary device for groundwater level measurement. Background Technology

[0002] With the development of my country's economy, the utilization rate of groundwater resources has increased rapidly. At the same time, it has also caused serious pollution to groundwater quality. Therefore, it is particularly necessary to strengthen the supervision and control of groundwater. By sampling and analyzing groundwater samples, and using tools to detect the depth of groundwater, the environmental conditions of the entire water body can be analyzed, which will greatly promote the protection of groundwater quality.

[0003] In existing technologies, groundwater level measurement and groundwater sampling are usually carried out simultaneously, but the methods and tools involved differ. Specifically:

[0004] When measuring the depth of groundwater level, an object that can float on the water surface (hereinafter referred to as "floating object") needs to be put into the borehole, and then the pull rope is pulled upward until the operator feels that the pull rope is taut and the floating object is pulled up. At this time, the length of the pull rope extending into the borehole is the depth of groundwater level. (Another measurement method is to put the floating object into the borehole and gradually release the pull rope until the operator feels that the pull rope can no longer be kept taut; the principle of the two measurement methods is the same, and will not be described in detail here.)

[0005] When sampling groundwater, objects that cannot float on the water surface (hereinafter referred to as "submerged objects") need to be dropped into the borehole, and then a rope is pulled upwards while keeping the rope stable. Finally, groundwater is sampled through the surface of the submerged object and placed in an upward-facing container.

[0006] The inventors discovered that when performing groundwater level measurement operations (including measuring groundwater depth and taking groundwater samples), it is necessary to carry at least two sets of tools, which puts a burden on the operators. At the same time, when performing multiple batches of measurement operations in multiple areas, the working time will increase exponentially, making it impossible to guarantee the efficiency of groundwater level measurement operations. Utility Model Content

[0007] This application provides a groundwater level measurement auxiliary device, which aims to quickly complete the measurement of groundwater level depth and groundwater sampling, reduce the amount of tools required for operators, and ensure the efficiency of groundwater level measurement operations.

[0008] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0009] A groundwater level measurement auxiliary device is provided, comprising:

[0010] A bracket for fixing to the ground; the bracket has a support arm extending in a horizontal direction, and the support arm has a through hole extending in a vertical direction; the bracket also has a centering member for connecting with a drill hole so that the through hole is coaxial with the drill hole.

[0011] A take-up shaft is disposed above the support arm and is rotatably connected to the bracket in the horizontal direction. The take-up shaft is also connected to a rotation drive component for driving its rotation.

[0012] A measuring tape is wound around the take-up shaft, with one end connected to the take-up shaft; the other end of the measuring tape extends through the through-hole and is connected to a float for floating on the water surface; and

[0013] A counterweight is disposed below the support arm and has a locking structure between it and the support arm; the locking structure is used to connect the counterweight and the support arm to restrict the movement of the counterweight; and the counterweight has a mounting hole suitable for the passage of the measuring belt, and a downwardly extending push rod for abutting against the float.

[0014] The upper side of the floating block is provided with a groove for accommodating groundwater samples;

[0015] When the counterweight moves downward until the push rod abuts the floating block, the combination of the floating block and the counterweight can sink into the groundwater, and the groundwater can enter the groove between the floating block and the counterweight.

[0016] In one possible implementation, the support includes:

[0017] Two support plates, for fixing to the ground, are located on either side of the drill hole; and

[0018] A top plate is disposed on the upper side of the support plates and is fixedly connected to the two support plates;

[0019] The support arm is located on the lower side of the top plate, and its two ends are respectively connected to the two support plates; and the winding shaft is rotatably connected to the top plate.

[0020] In one possible implementation, the centering component includes:

[0021] Two coaxial adjusting screws are slidably connected to the two support plates respectively; each adjusting screw is threaded with two limiting nuts, which respectively abut against the two sides of the corresponding support plate to limit the movement of the adjusting screw relative to the support plate; and

[0022] Two uprights are connected to the two adjusting screws respectively, and both are used to insert into the drill hole, so that both uprights abut against the inner peripheral wall of the drill hole.

[0023] In one possible implementation, anti-slip pads for contacting the inner peripheral wall of the borehole are connected to the opposite sides of both uprights.

[0024] In one possible implementation, the locking structure includes:

[0025] A wing plate, disposed on the counterweight, and extending outward in a horizontal direction; and

[0026] A slider is slidably connected to the lower side of the support arm, and has an elastic reset member between it and the support arm. The slider also has a cantilever extending toward the counterweight.

[0027] The elastic reset member is used to move the slider toward the counterweight block to the cantilever support the wing plate, thereby restricting the counterweight block from moving downward relative to the support arm.

[0028] In one possible implementation, the resilient reset member includes:

[0029] A fixing block is disposed on the side of the slider facing away from the counterweight block, and is fixedly connected to the support arm; and

[0030] A spring is disposed between the fixed block and the slider, and its two ends are respectively connected to the fixed block and the slider;

[0031] Specifically, when the slider moves to the cantilever supporting the wing plate, the spring is in its original length state or in an elastically compressed state; when the slider moves away from the counterweight to the cantilever to avoid the wing plate, the spring is in an elastically compressed state.

[0032] In one possible implementation, the slider has an anti-bend rod extending toward the fixed block; the anti-bend rod is inserted into the interior of the spring and slidably connected to the fixed block.

[0033] In one possible implementation, the push rods are multiple, and the multiple push rods are spaced apart around the mounting hole.

[0034] In one possible implementation, the float block is fixedly connected to a sleeve with an upward opening, suitable for insertion of the push rod.

[0035] In one possible implementation, the grooves are multiple, and the multiple grooves are spaced apart around the measuring band.

[0036] In this embodiment, by fixing the bracket to the ground and using the centering component to align the through hole with the borehole on the ground, the preliminary work of measuring the groundwater level can be completed. Based on this, by rotating the drive component to rotate the winding shaft, part of the measuring tape can be pulled out from the winding shaft under the gravity of the floating block, and finally the floating block lands on the water surface. Subsequently, the operator manually pulls the measuring tape upwards and feels the tightness of the measuring tape in real time. When the measuring tape is straightened and the floating block contacts the water surface, the distance between the lower end of the measuring tape and the ground is the measured value of the groundwater level depth.

[0037] When groundwater sampling is required, adjust the locking structure to allow the counterweight to fall along the measuring belt until the push rod abuts the floating block; simultaneously, release the measuring belt again to allow the combination of the counterweight and the floating block to sink into the groundwater, so that the groundwater enters the groove of the floating block from the gap between the floating block and the counterweight; finally, rotate the drive component to drive the winding shaft to rotate, so that the measuring belt is wound around the surface of the winding shaft, and the aforementioned combination can be pulled up to complete the recovery of the groundwater sample from the floating block, the counterweight, and the groove.

[0038] The groundwater level measurement auxiliary device provided in this embodiment, compared with the prior art, can quickly complete the measurement of groundwater level depth and groundwater sampling, reduce the amount of tools required for operators, and ensure the efficiency of groundwater level measurement operations. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is one of the structural schematic diagrams of the groundwater level measurement auxiliary device provided in the embodiments of this application;

[0041] Figure 2 for Figure 1 A magnified view of a portion of the middle circle A;

[0042] Figure 3 A second schematic diagram of the structure of the groundwater level measurement auxiliary device provided in the embodiments of this application;

[0043] Figure 4 This is an exploded structural diagram of the support plate and centering component used in the embodiments of this application;

[0044] Figure 5 This is a partial sectional view of the support plate and centering component used in the embodiments of this application;

[0045] Figure 6 This is a three-dimensional structural diagram of the counterweight used in the embodiments of this application;

[0046] Figure 7 This is a schematic diagram of the floating block and measuring strip used in the embodiments of this application in a combined state (the measuring strip is shown in cross-section for ease of display).

[0047] Figure 8 This is a schematic diagram of the top plate and winding shaft used in the embodiments of this application in their combined state;

[0048] Figure 9 This is a schematic diagram of the combined structure of the support arm and elastic reset component used in the embodiments of this application;

[0049] Explanation of reference numerals in the attached drawings: 1. Bracket; 11. Support plate; 12. Top plate; 2. Rewinding shaft; 21. Rotation drive component; 3. Measuring belt; 4. Counterweight; 41. Mounting hole; 42. Push rod; 5. Support arm; 51. Through hole; 6. Centering component; 61. Adjusting screw; 611. Limit nut; 62. Upright pole; 621. Anti-slip pad; 7. Floating block; 71. Groove; 72. Sleeve; 8. Locking structure; 81. Wing plate; 82. Slider; 821. Cantilever; 822. Anti-bend rod; 9. Elastic reset component; 91. Fixing block; 92. Spring. Detailed Implementation

[0050] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0051] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0052] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0054] Please refer to the following: Figures 1 to 9 The groundwater level measurement auxiliary device provided in this application will now be described. The groundwater level measurement auxiliary device proposed in this application includes a support 1, a winding shaft 2, a measuring belt 3, and a counterweight 4.

[0055] The bracket 1 is used to fix it to the ground, specifically to the ground directly above the borehole that is connected to the groundwater area.

[0056] The bracket 1 has a support arm 5 extending in the horizontal direction, and the support arm 5 has a through hole 51 extending in the vertical direction.

[0057] Furthermore, the bracket 1 also has a centering member 6, which is used to connect with the drill hole so that the through hole 51 is coaxially arranged with the drill hole.

[0058] The take-up shaft 2 is positioned above the support arm 5, and is rotatably connected to the bracket 1 in the horizontal direction. Specifically, both ends of the take-up shaft 2 have upright plates rotatably connected to it, and both upright plates are fixedly connected to the bracket 1. In this embodiment, the take-up shaft 2 is driven by a rotation drive component 21 for rotating it.

[0059] The measuring tape 3 is wound around the take-up shaft 2, with one end connected to the take-up shaft 2; and the other end of the measuring tape 3 extends out through the through hole 51 and is connected to a float 7 for floating on the water surface.

[0060] It should be noted that, in order to facilitate the determination of the length of the measuring tape 3 extending into the borehole, when selecting the measuring tape 3, the measuring tape strip can be used to replace it, and the zero mark end of the measuring tape strip is connected to the floating block 7. When the floating block 7 floats on the water surface and the measuring tape 3 is in a taut state, the distance between the floating block 7 and the ground can be determined by observing the scale that coincides with the ground of the measuring tape 3, thereby determining the depth of the groundwater level.

[0061] The counterweight 4 is located below the support arm 5 and has a locking structure 8 between it and the support arm 5. In actual use, by adjusting the locking structure 8, the counterweight 4 and the support arm 5 can be connected to restrict the movement of the counterweight 4 relative to the support arm 5. Correspondingly, the counterweight 4 and the support arm 5 can also be separated so that the counterweight 4 falls under its own weight.

[0062] In this embodiment, the counterweight 4 has a mounting hole 41 that extends vertically and is suitable for the measuring belt 3 to pass through. When the device is used in combination, the counterweight 4 can be slidably mounted on the measuring belt 3 by means of the mounting hole 41. Furthermore, the counterweight 4 also has a downwardly extending push rod 42 for abutting against the float block 7.

[0063] The reason for this design is that the upper side of the float block 7 has a groove 71 for accommodating groundwater samples. When the counterweight block 4 moves along the length of the measuring belt 3 until the push rod 42 abuts against the float block 7, a gap will be formed between the counterweight block 4 and the float block 7 due to the presence of the push rod 42, so that groundwater can pass through and enter the interior of the groove 71.

[0064] Specifically, when the counterweight 4 moves downwards until the push rod 42 abuts against the floating block 7, the combination of the floating block 7 and the counterweight 4 can sink into the groundwater, and the groundwater can enter the groove 71 through the gap between the floating block 7 and the counterweight 4.

[0065] In this embodiment, by fixing the bracket 1 to the ground and using the centering member 6 to make the through hole 51 coaxial with the borehole on the ground, the preliminary work of measuring the groundwater level can be completed. Based on this, by rotating the drive member 21 to drive the winding shaft 2 to rotate, part of the measuring tape 3 can be pulled out from the winding shaft 2 under the gravity of the floating block 7, and finally the floating block 7 falls on the water surface; then, the operator manually pulls the measuring tape 3 upward and feels the tightness of the measuring tape 3 in real time. When the measuring tape 3 is straightened and the floating block 7 contacts the water surface, the distance between the lower end of the measuring tape 3 and the ground is the measured value of the groundwater level depth.

[0066] When groundwater sampling is required, the locking structure 8 is adjusted so that the counterweight 4 falls along the measuring belt 3 until the push rod 42 abuts against the floating block 7. At the same time, the measuring belt 3 is released again so that the combination of the counterweight 4 and the floating block 7 sinks into the groundwater, allowing the groundwater to enter the groove 71 of the floating block 7 from the gap between the floating block 7 and the counterweight 4. Finally, by rotating the drive component 21, the winding shaft 2 is rotated so that the measuring belt 3 is wound around the surface of the winding shaft 2, and the aforementioned combination can be pulled up to complete the recovery of the groundwater sample from the floating block 7, the counterweight 4, and the groove 71.

[0067] The groundwater level measurement auxiliary device provided in this embodiment, compared with the prior art, can quickly complete the measurement of groundwater level depth and groundwater sampling, reduce the amount of tools required for operators, and ensure the efficiency of groundwater level measurement operations.

[0068] In some embodiments, such as Figure 1 and Figure 3 As shown, the bracket 1 includes two support plates 11 and a top plate 12.

[0069] Both support plates 11 are used to fix the ground, and are located on both sides of the ground hole respectively.

[0070] The top plate 12 is located on the upper side of the support plate 11 and is fixedly connected to the two support plates 11 to form a gate-shaped frame structure.

[0071] In this embodiment, the aforementioned support arm 5 is disposed on the lower side of the top plate 12, and its two ends are respectively connected to two support plates 11; and the winding shaft 2 is disposed on the upper side of the top plate 12 and is rotatably connected to it.

[0072] In some embodiments, such as Figures 3 to 5 As shown, the centering component 6 includes two adjusting screws 61 and two uprights 62.

[0073] Two adjusting screws 61 are coaxially arranged and slidably connected to two support plates 11 respectively; each adjusting screw 61 is threaded with two limiting nuts 611, which are used to abut against the two sides of the corresponding support plate 11 to limit the movement of the adjusting screw 61 relative to the support plate 11.

[0074] Two uprights 62 are connected to two adjusting screws 61 respectively. Specifically, the upper end of the upright 62 has a connecting part that extends radially outward (towards the adjusting screw 61) and contacts the ground, and the extended end of this connecting part is connected to the adjusting screw 61.

[0075] In actual use, both uprights 62 are used to insert into the drill hole and make both uprights 62 abut against the inner circumferential wall of the drill hole, thereby limiting the position of the bracket 1; based on this, by adjusting the distance between the two uprights 62 and the corresponding side support plate 11, the horizontal position of the through hole 51 can be adjusted so that the through hole 51 and the drill hole are set coaxially.

[0076] In some embodiments, such as Figures 3 to 5 As shown, anti-slip pads 621 are connected to the opposite sides of the two uprights 62 to prevent the uprights 62 from sliding against the inner wall of the borehole, thus preventing the support 1 from becoming unstable.

[0077] In some embodiments, such as Figures 1 to 3 As shown, the locking structure 8 includes a wing plate 81 and a slider 82.

[0078] The wing plate 81 is mounted on the counterweight block 4 and extends outward in the horizontal direction.

[0079] The slider 82 is slidably connected to the lower side of the support arm 5, and there is an elastic reset member 9 between the slider 82 and the support arm 5. The slider 82 has a cantilever 821 extending toward the counterweight 4.

[0080] In practical use, the elastic reset member 9 can drive the slider 82 to move toward the counterweight 4 until the cantilever 821 is under the wing plate 81 and supports the wing plate 81, thereby restricting the counterweight 4 from moving downward relative to the support arm 5. When the counterweight 4 needs to fall, the cantilever 821 and the wing plate 81 can be separated by manually overcoming the elastic force of the elastic reset member 9.

[0081] In some embodiments, such as Figure 2 and Figure 9 As shown, the elastic reset member 9 includes a fixing block 91 and a spring 92.

[0082] The fixing block 91 is located on the side of the slider 82 facing away from the counterweight block 4, and it is fixedly connected to the support arm 5.

[0083] Spring 92 is disposed between fixed block 91 and slider 82, and its two ends are connected to fixed block 91 and slider 82 respectively.

[0084] Based on this, when the slider 82 moves to the cantilever 821 to support the wing plate 81, the spring 92 is in its original length state or in an elastically compressed state; when the slider 82 moves away from the counterweight 4 to the cantilever 821 to avoid the wing plate 81, the spring 92 is in an elastically compressed state.

[0085] In some embodiments, such as Figure 2 As shown, the slider 82 has an anti-bending rod 822 extending toward the fixed block 91; this anti-bending rod 822 is inserted into the inside of the spring 92 and is slidably connected to the fixed block 91 to prevent the spring 92 from buckling along its radial direction.

[0086] In some embodiments, such as Figure 6 As shown, there are multiple push rods 42, and the multiple push rods 42 are arranged at intervals around the mounting hole 41 to ensure the uniformity of the thrust provided by the counterweight 4 to the floating block 7.

[0087] In some embodiments, such as Figure 7 As shown, a sleeve 72 with an upward opening, suitable for inserting the push rod 42, is fixedly connected to the floating block 7. By combining the push rod 42 and the sleeve 72, relative movement in the horizontal direction between the floating block 7 and the counterweight block 4 can be avoided, thus improving the structural stability of the device.

[0088] In some embodiments, such as Figure 7 As shown, there are multiple grooves 71, and the multiple grooves 71 are arranged at intervals around the measuring band 3 to realize the collection of multiple sets of groundwater samples; and, since the collected samples are distributed in a ring trajectory, even if the surface of the floating block 7 shakes during the upward movement of the floating block 7, the amount of groundwater sample that overflows is limited, thereby ensuring the stability of the groundwater sampling process.

[0089] The above content is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A groundwater level measurement auxiliary device, characterized in that, include: A bracket for fixing to the ground; the bracket has a support arm extending in a horizontal direction, and the support arm has a through hole extending in a vertical direction; the bracket also has a centering member for connecting with a drill hole so that the through hole is coaxial with the drill hole. A take-up shaft is disposed above the support arm and is rotatably connected to the bracket in the horizontal direction. The take-up shaft is also connected to a rotation drive component for driving its rotation. A measuring tape is wound around the take-up shaft, with one end connected to the take-up shaft; the other end of the measuring tape extends out through the through hole and is connected to a float for floating on the water surface. as well as A counterweight is disposed below the support arm and has a locking structure between it and the support arm; the locking structure is used to connect the counterweight and the support arm to restrict the movement of the counterweight; and the counterweight has a mounting hole suitable for the passage of the measuring belt, and a downwardly extending push rod for abutting against the float. The upper side of the floating block is provided with a groove for accommodating groundwater samples; When the counterweight moves downward until the push rod abuts the floating block, the combination of the floating block and the counterweight can sink into the groundwater, and the groundwater can enter the groove between the floating block and the counterweight.

2. The groundwater level measurement auxiliary device as described in claim 1, characterized in that, The support includes: Two support plates, for fixing to the ground, are located on either side of the drill hole; and A top plate is disposed on the upper side of the support plate and is fixedly connected to the two support plates; The support arm is located on the lower side of the top plate, and its two ends are respectively connected to the two support plates; and the winding shaft is rotatably connected to the top plate.

3. The groundwater level measurement auxiliary device as described in claim 2, characterized in that, The centering component includes: Two coaxial adjusting screws are slidably connected to the two support plates respectively; each adjusting screw is threaded with two limiting nuts, which respectively abut against the two sides of the corresponding support plate to limit the movement of the adjusting screw relative to the support plate; and Two uprights are connected to the two adjusting screws respectively, and both are used to insert into the drill hole, so that both uprights abut against the inner peripheral wall of the drill hole.

4. The groundwater level measurement auxiliary device as described in claim 3, characterized in that, Both uprights have anti-slip pads attached to their opposite sides for contact with the inner wall of the borehole.

5. The groundwater level measurement auxiliary device as described in any one of claims 1-4, characterized in that, The locking structure includes: A wing plate, disposed on the counterweight, and extending outward in a horizontal direction; and A slider is slidably connected to the lower side of the support arm, and has an elastic reset member between it and the support arm. The slider also has a cantilever extending toward the counterweight. The elastic reset member is used to move the slider toward the counterweight block to the cantilever support the wing plate, thereby restricting the counterweight block from moving downward relative to the support arm.

6. The groundwater level measurement auxiliary device as described in claim 5, characterized in that, The elastic reset component includes: A fixing block is disposed on the side of the slider facing away from the counterweight block, and is fixedly connected to the support arm; and A spring is disposed between the fixed block and the slider, and its two ends are respectively connected to the fixed block and the slider; Specifically, when the slider moves to the cantilever supporting the wing plate, the spring is in its original length state or in an elastically compressed state; when the slider moves away from the counterweight to the cantilever to avoid the wing plate, the spring is in an elastically compressed state.

7. The groundwater level measurement auxiliary device as described in claim 6, characterized in that, The slider has an anti-bend rod extending toward the fixed block; the anti-bend rod is inserted into the inside of the spring and is slidably connected to the fixed block.

8. The groundwater level measurement auxiliary device as described in claim 1, characterized in that, The push rods are multiple, and the multiple push rods are arranged at intervals around the mounting hole.

9. The groundwater level measurement auxiliary device as described in claim 1 or 8, characterized in that, A sleeve with an upward opening, suitable for inserting the push rod, is fixedly connected to the floating block.

10. The groundwater level measurement auxiliary device as described in claim 1, characterized in that, The grooves are multiple, and the multiple grooves are spaced apart around the measuring band.

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