Underground water level monitoring device

Abstract

The utility model relates to an underground water level monitoring device which comprises a probing pipe, a connecting rope penetrates through the probing pipe, the lower end of the connecting rope is connected with a water level monitoring device, the probing pipe comprises an outer pipe body and an inner pipe body, and the inner pipe body is inserted into the outer pipe body. A spiral groove extending in the length direction of the outer pipe body is formed in the inner wall of the outer pipe body, and a protrusion is arranged on the inner pipe body and matched in the spiral groove. A blade is arranged on the outer wall of the inner pipe body, and the low-position end of the blade is located below the inner pipe body. The utility model has the beneficial effects that the inner pipe body rotates while moving along the length direction of the outer pipe body under the action of external force, and the blades connected to the inner pipe body rotate along with the inner pipe body, so as to play a certain role in crushing rootstocks and obstacles which possibly appear in a drill hole; and the device is prevented from being incapable of penetrating into the drill hole due to the blocking effect of rhizomes or obstacles.

Description

Technical Field

[0001] The utility model belongs to the field of water level monitoring, and in particular relates to underground water level monitoring equipment. Background Art

[0002] Monitoring groundwater is an important measure to protect water resources, maintain ecological balance, safeguard public health, prevent geological disasters and promote scientific research.

[0003] In the prior art, a real-time monitoring device for groundwater level has been disclosed, with document number CN221198594U, comprising a supporting frame, a winding reel mounted on the supporting frame, a water level indicator disposed above the winding reel, a steel wire cable connected to the water level indicator, an end of the steel wire cable away from the water level indicator being connected to a water level monitoring assembly, the water level monitoring assembly comprising a protective tube, a water level measuring sensor probe being mounted inside the protective tube, a buffer assembly being equidistantly connected to the outside of the protective tube, and a roller being mounted on the side of the buffer assembly away from the protective tube.

[0004] However, in the above scheme, since there are often roots or other obstacles in the borehole, the water level monitoring component will be entangled or obstructed during the process of placing it into the borehole or underground well, causing the water level monitoring component to be unable to continue lowering, thereby causing the water level monitoring component to fail to work. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a groundwater monitoring device that can be smoothly lowered to a working position.

[0006] To achieve the above-mentioned object, the technical solution of the utility model is: a groundwater level monitoring device, comprising a probe tube, a connecting rope passing through the probe tube, the lower end of the connecting rope being connected to the water level monitoring device, the probe tube comprising an outer tube body and an inner tube body, the inner tube body being inserted into the outer tube body;

[0007] The inner wall of the outer tube is provided with a spiral groove extending along the length direction thereof, and the inner tube is provided with a protrusion, which is adapted to fit in the spiral groove;

[0008] The inner tube body end surface is provided with blades, which are distributed in a circular array around the central axis of the inner tube body.

[0009] Furthermore, an upper cover is provided on the end surface of the inner tube body at the high end, a through hole is provided at the center of the upper cover, and the lower end of the connecting rope passes through the through hole and is connected to the water level monitoring device.

[0010] Furthermore, an annular groove is provided on the upper cover plate, and a push tube is provided on the connecting rope, and the lower end of the push tube is adapted to be in the annular groove.

[0011] Furthermore, the water level monitoring device includes a fixing device and a water level sensor. The fixing device is connected to the lower end of the connecting rope, and the fixing device and the water level sensor are detachably connected.

[0012] Furthermore, the fixing device includes a top plate docked with the connecting rope, the top plate is vertically connected to four side guard plates, the side guard plates are threaded with locking rods, and the inner end of the locking rod is fixed with a chuck. When the locking rod is tightened, the chuck and the water level sensor can be tightly fitted.

[0013] Furthermore, a limiting device is provided on the fixing device, and the limiting device is located between the fixing device and the probe tube. The limiting device includes a sleeve and a buckle plate. The sleeve is located between the buckle plate and the fixing device, and the sleeve is sleeved on the connecting rope. The sleeve is detachably connected to the top plate.

[0014] Furthermore, a connecting rod is connected to the gusset plate, which is provided with two blind holes. The lower end of the connecting rod is inserted into the blind holes, and the upper end of the connecting rod is provided with a threaded section and the upper end of the connecting rod is threadedly connected to the probe pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the probe tube of the present invention comprises an outer tube body and an inner tube body, the inner tube body is inserted into the outer tube body, a spiral groove extending along the length direction of the outer tube body is provided on the inner wall of the outer tube body, a protrusion is provided on the inner tube body, the protrusion is adapted to the spiral groove, the inner tube body moves along the length direction of the outer tube body under the action of an external force while performing a rotational motion, and the blade connected to the inner tube body rotates accordingly, which has a certain crushing effect on roots and obstacles that may appear in the drill hole, thereby preventing the device from being unable to penetrate into the drill hole due to the obstruction of roots or obstacles;

[0016] In addition, a limit device is provided on the connecting rope. The setting of the limit device reduces the problem of deviation in measurement results caused by water flow fluctuations to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main cross-sectional structure when the limiting device of the utility model is a sleeve;

[0018] Figure 2 This is a schematic diagram of the main cross-sectional structure of the limit device of the utility model when it is in another situation;

[0019] Figure 3 This is a schematic diagram of the main cross-section of the probe tube of the utility model when it is working;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the probe tube of the utility model;

[0021] Figure 5 This is a schematic diagram of the expanded structure of the straight tube body of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the inner tube body of the utility model when viewed from above;

[0023] Figure 7 This is a schematic diagram of the top cover structure of the utility model;

[0024] Figure 8 This is a schematic diagram of the three-dimensional structure of the push tube of the utility model;

[0025] Figure 9 This is a schematic diagram of the structure of the water level monitoring device of the utility model when viewed from above;

[0026] In the figure, 1-introduction tube, 101-outer tube body, 1011-extension part, 1012-straight tube body, 102-inner tube body, 2-connecting rope, 3-retracting device, 4-water level monitoring device, 5-spiral groove, 6-upper cover, 601-first through hole, 602-annular groove, 7-protrusion, 8-blade, 10-push tube, 1101-top plate, 1102-side guard plate, 1103-locking rod, 1104-chuck, 12-water level sensor, 13-sleeve, 14-first extension part, 15-second extension part, 16-first locking bolt, 17-gusset plate, 18-connecting rod, 19-second locking bolt, 20-connecting rod. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention. In the embodiments, the components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for which protection is claimed, but merely represents selected embodiments of the present application.

[0028] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," "back," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections; electrical connections; hydraulic connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0030] See Figure 1 and Figure 2 As shown, an underground water level monitoring device 4 includes a probe tube 1, which is detachably connected to the borehole mouth. A connecting rope 2 passes through the probe tube 1, and the upper end of the connecting rope 2 is sleeved on the reeling device 3. The lower end of the connecting rope 2 is connected to the water level monitoring device 4. When in use, the water level monitoring device 4 is passed through the borehole, and the reeling device 3 is used to lower the water level monitoring device 4 to the depth of the borehole, and finally the water level monitoring device 4 is used to monitor the water level.

[0031] See Figures 3 to 7 As shown, the above-mentioned probe tube 1 includes an outer tube body, which includes a straight tube body 1012 and an extension portion 1011. The extension portion 1011 is vertically connected to the straight tube body 1012. A spiral groove 5 extending along its length direction is provided on the inner wall of the outer tube body 101. The straight tube body 1012 is sleeved with an inner tube body 102. An upper cover plate 6 is provided on the end surface of the inner tube body 102 at the high end. A first through hole 601 is provided at the center of the upper cover plate 6. The lower end of the connecting rope 2 can pass through the first through hole 601 and be connected to the water level monitoring device 4. A protrusion 7 is provided on the inner tube body 102, which is adapted to be in the spiral groove 5. A blade 8 is provided on the end surface of the inner tube body 102. The blade 8 is distributed in a circular array around the vertical center axis of the inner tube body 102.

[0032] An annular groove is provided on the outer surface of the upper cover plate 6 connected to the inner tube body 102. The inner diameter of the annular groove 602 is larger than the diameter of the through hole. A push tube 10 is sleeved on the above-mentioned connecting rope 2, and the lower end of the push tube 10 is against the annular groove 602. The push tube 10 is formed by docking two card shells with a "C"-shaped cross-section. The same side ends of the two card shells are hinged, and the other same side ends of the two card shells are clamped. After the two card shells are docked, a cylindrical shape is formed. Before using this device, first place the probe 1 at the borehole mouth, and then sleeve the push tube 10 on the connecting rope 2. At this time, the push tube 10 is located above the inner tube body 102 and the lower end of the push tube 10 is against the annular groove 602. The push tube 10 is pushed downward. Under the action of the push tube 10, the inner tube body 102 moves downward and rotates at the same time. When the inner tube body 102 rotates, it crushes the roots or obstacles in the borehole to prevent the roots or obstacles from hindering the water level monitoring device 4 from moving downward.

[0033] See Figure 9 As shown, the water level monitoring device 4 includes a fixing device and a water level sensor 12. The fixing device is connected to the lower end of the connecting rope 2. The water level sensor 12 is fixed to the fixing device. The fixing device includes a top plate 1101 connected to the connecting rope 2. Four vertical side guard plates 1102 are provided on the top plate 1101. Each side guard plate 1102 is vertically connected to the top plate 1101. The area between the four side guard plates 1102 is the area for placing the water level sensor 12. A threaded through hole is provided at the center of two side guard plates 1102 in relative positions. A locking rod 1103 passes through the threaded through hole. The locking rod 1103 is threadedly connected to the side guard plate 1102, and a chuck 1104 is fixed to the inner end of each locking rod 1103. The end face of the chuck 1104 is fitted with a rubber pad. When the locking rod 1103 is tightened, the chuck 1104 and the water level sensor 12 can be tightly fitted. At this time, the locking rod 1103 on the side guard plate 1102 clamps the water level sensor 12. In order to enhance the tight connection between the water level sensor 12 and the fixing device, locking rods 1103 can also be passed through the remaining two side guard plates 1102. At this time, the four locking rods 1103 tightly clamp the water level sensor 12.

[0034] See Figure 1As shown, a limiting device is provided on the fixing device, and the limiting device includes a sleeve 13 and a gusset plate 17. The sleeve 13 is located between the fixing device and the gusset plate 17. A second through hole is provided at the center of the gusset plate 17. The connecting rope 2 passes through the second through hole. The sleeve 13 is sleeved on the connecting rope 2. The sleeve 13 and the top plate 1101 of the fixing device are detachably connected. The structure of the sleeve 13 is roughly the same as that of the above-mentioned push tube 10. Both are formed by two card shells docking. The difference is that a first extension portion 14 is provided on the sleeve 13, and a second extension portion 15 is provided on the top plate 1101. Threaded through holes are provided on the first extension portion 14 and the second extension portion 15. The threaded through-holes on the extension portion 15 are connected, and the sleeve 13 is detachably connected to the top plate 1101 by screwing a first locking bolt 16 into the threaded through-holes; the buckle plate 14 and the sleeve 13 are also detachably connected, and a third extension portion 18 is further provided on the sleeve 13. Threaded through-holes are provided on both the third extension portion 15 and the buckle plate 14, and the buckle plate 17 is connected to the threaded through-holes on the third extension portion 18. The buckle plate 17 is detachably connected to the sleeve 13 by screwing a second locking bolt 19 into the threaded through-holes. The setting of the sleeve 13 makes the buckle plate 17 located at the drilled hole. The setting of the buckle plate 17 alleviates the problem of water surface fluctuations to a certain extent, thereby affecting the measurement accuracy of the water level sensor 12.

[0035] See Figure 2 As shown, in order to further alleviate the problem of measurement accuracy of the water level sensor 12 caused by water surface fluctuations, a connecting rod 20 is connected to the buckle plate 17, and two blind holes are provided on the buckle plate 17. The lower end of the connecting rod 20 is inserted into the blind hole, and the upper end of the connecting rod 20 is provided with a threaded section, and the upper end of the connecting rod 20 is threadedly connected to the extension portion 1011 of the outer tube body 101. When the groundwater flows, due to the limiting effect of the connecting rod 20, the horizontal height of the water level monitoring device 4 cannot be changed, which further reduces the measurement deviation of the water level monitoring device 4 caused by water surface fluctuations.

[0036] To facilitate the use of the monitoring device, the winding device 3 is used to reel in or release the connecting rope 2. The winding device 3 includes a rotating shaft with bearings at both ends for supporting and guiding the rotation of the rotating shaft. Two anti-slip discs are provided on the rotating shaft, and the bearings are located between the two anti-slip discs. One end of the rotating shaft is connected to the output shaft of the bidirectional drive motor, and the upper end of the connecting rope 2 is fixed to one end of the rotating shaft. When the drive motor rotates forward, the winding device 3 reels the connecting rope 2. When the drive motor rotates reversely, the winding device 3 releases the connecting rope 2. To prevent the outdoor environment from affecting the drive motor, the drive motor is arranged in a protective cover.

[0037] See Figures 1 to 3As shown, when using the above-mentioned water level monitoring device 4, first fix the probe tube 1 at the drill hole, at this time the water level sensor 12 is located inside the inner tube body 102, then put the push tube 10 on the connecting rope 2, and push the push tube 10. Under the action of the push tube 10, the inner tube body 102 moves downward while rotating. The blades on the inner tube body 102 will break the obstacles that hinder its downward movement, so that the water level monitoring device 4 can move downward smoothly; before lowering the water level monitoring device 4, select one of the above-mentioned limiting devices to be detachably connected to the fixing device, and finally use the reeling device 3 to place the water level monitoring device 4 into the groundwater at the depth of the hole.

[0038] In this technical solution, the driving motor used is a motor whose output shaft can rotate in forward and reverse directions, that is, the water level sensor 12 is an existing product. This technical solution only applies its function but does not improve its structure.

[0039] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based primarily on the scope of protection of the claims.

Claims

1. A groundwater level monitoring device, characterized in that: The probe comprises a probe tube, a connecting rope passing through the probe tube, the lower end of the connecting rope is connected to the water level monitoring component, the probe tube comprises an outer tube body and an inner tube body, the inner tube body is inserted into the outer tube body, and the water level monitoring component can pass through the inner tube body; The inner wall of the outer tube is provided with a spiral groove extending along the length direction thereof, and the inner tube is provided with a protrusion, which is adapted to fit in the spiral groove; The lower end surface of the inner tube body is provided with blades, which are distributed in a circular array around the central axis of the inner tube body. When the inner tube body moves downward, the blades move around the central axis of the inner tube body to crush roots or obstacles.

2. The groundwater level monitoring device according to claim 1, characterized in that: An upper cover is provided on the end surface of the inner tube body at the high end, a through hole is provided at the center of the upper cover, and the lower end of the connecting rope passes through the through hole and is connected to the water level monitoring device.

3. The underground water level monitoring device according to claim 2, characterized in that: An annular groove is provided on the upper cover plate, a push tube is sleeved on the connecting rope, and the lower end of the push tube is adapted to be in the annular groove.

4. A groundwater level monitoring device according to claim 1 or 2, characterized in that: The water level monitoring component further comprises a fixing device and a water level sensor. The fixing device is connected to the lower end of the connecting rope, and the fixing device is detachably connected to the water level sensor.

5. The underground water level monitoring device according to claim 4, characterized in that: The fixing device includes a top plate docked with the connecting rope, the top plate is vertically connected to four side guard plates, the side guard plates are threaded with locking rods, and the inner end of the locking rod is fixed with a chuck. When the locking rod is tightened, the chuck and the water level sensor can be tightly fitted.

6. The underground water level monitoring device according to claim 5, characterized in that: A limiting device is provided on the fixing device, and the limiting device is located between the fixing device and the probe tube. The limiting device includes a sleeve and a buckle plate. The sleeve is located between the buckle plate and the fixing device, and the sleeve is sleeved on the connecting rope. The sleeve is detachably connected to the top plate.

7. The underground water level monitoring device according to claim 6, characterized in that: The gusset plate is connected with a connecting rod, which is provided with two blind holes. The lower end of the connecting rod is inserted into the blind holes. The connecting rod is provided with a threaded section and the upper end of the connecting rod is threadedly connected to the probe pipe.

Images