Underground water level measuring device for hydrogeological survey

Abstract

The utility model discloses an underground water level measuring device for hydrogeological survey, which belongs to the technical field of underground water level measurement, and comprises a sensing probe and a scale lead fixedly connected to the end part of the sensing probe, and further comprises a guide pipe arranged outside the scale lead, and through holes are formed in the side surface and the bottom surface of the guide pipe; and the supporting disc is fixedly connected to the top of the guide pipe. The scale lead is guided and lowered through the guide mechanism, so that the sensing probe is not prone to colliding with the inner wall of the guide pipe in the lowering process, and meanwhile, through holes are formed in the side face and the bottom face of the guide pipe, so that when the guide pipe enters the probe hole, water in the guide pipe can enter the probe hole from the bottom face and the side face of the guide pipe; and the water level in the sensing probe is always kept consistent with the water level in the detection hole, so that the sensing probe can be more accurately contacted with the water surface of the detection hole for measurement in the downward moving process.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater level measurement, in particular to a groundwater level measurement device for hydrogeological investigation. Background Technique

[0002] In hydrogeological exploration operations, it is necessary to use a groundwater level detector in the prior art to detect the groundwater level. Usually, a detection hole with a known diameter needs to be dug to communicate with the groundwater flow, and then the sensing probe of the groundwater level detector is inserted into the groundwater in the detection hole. When the sensor probe touches the water surface, a beeping sound will be emitted. At this time, the groundwater level position can be read through the scale lead connected to the sensor probe. In actual use, the sensing probes of existing groundwater level detectors are directly inserted into the detection holes without protection. In some flowing groundwater, sediment and stones are likely to damage the sensing probe, affecting the service life of the sensing probe. For example, the Chinese utility model patent with the publication number CN210426681U discloses a groundwater level detection device for hydrogeology. By arranging the sensing probe inside the detection tube, the bottom of the detection tube is a coarse filtering part, and the coarse filtering holes on the surface of the coarse filtering part are used to introduce groundwater into the detection tube and block the coarse sediment and stones to prevent them from entering the detection tube and damaging the sensing probe. Although it can play a good protective role for the sensing probe, only through the coarse filtering part at the bottom to connect the detection tube with the detection hole, the speed of groundwater in the detection hole entering the detection tube is slow, and it cannot be kept level with the liquid level in the detection hole in real time. Therefore, during the downward movement of the sensing probe, the water level in the detection tube may not reach the position flush with the actual liquid level inside the detection hole, resulting in a large error in the final measurement result. Content of the Utility Model

[0003] The purpose of the utility model is to provide a groundwater level measurement device for hydrogeological investigation to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A groundwater level measurement device for hydrogeological investigation, including a sensing probe and a scale lead fixedly connected to the end of the sensing probe, further including:

[0005] A guiding tube, which is arranged outside the scale lead, and through holes are opened on the side and bottom surfaces of the guiding tube;

[0006] A supporting disk, which is fixedly connected to the top of the guiding tube, and a through groove communicating with the guiding tube is opened on the surface of the supporting disk;

[0007] The guiding mechanism is arranged on the top of the supporting disc. The guiding mechanism includes two brackets fixedly connected to the top of the supporting disc. The two brackets are symmetrically distributed on both sides of the through groove. A guiding plate is fixedly connected between the two brackets. A guiding groove is formed in the middle of the guiding plate, and a straight groove is formed on the surface of the guiding plate.

[0008] As a further scheme of the present utility model: wherein, the dimension value of the guiding groove corresponds to the wire diameter value of the scale lead, so that the scale lead can enter the guiding groove, and the guiding groove can stably guide it.

[0009] As a further scheme of the present utility model: wherein, the shape of the guiding groove is arc-shaped, and the guiding groove and the guiding tube are concentrically arranged. When the sensing probe moves downward under the conveyance of the scale lead, it can always maintain the middle position of the guiding tube and keep it in a vertical state, so that more accurate data measurement can be carried out.

[0010] As a further scheme of the present utility model: wherein, one end of the straight groove is communicated with the guiding groove, and the other end of the straight groove penetrates through the side wall of the guiding plate, so that the scale lead can pass through the straight groove and enter the guiding groove during use.

[0011] As a further scheme of the present utility model: wherein, a horizontal calibration mechanism is arranged inside the supporting disc. The horizontal calibration mechanism includes two spirit levels fixedly embedded in the top of the supporting disc. A plurality of threaded sleeves are rotatably connected to the bottom of the supporting disc. The inner side surface of the threaded sleeve is threadedly connected with a threaded rod, and a guiding member is arranged outside the threaded rod.

[0012] As a further scheme of the present utility model: wherein, the two spirit levels are arranged perpendicular to each other, so that the two spirit levels can cooperate with each other to detect the inclination in different directions.

[0013] As a further scheme of the present utility model: wherein, the guiding member includes a vertical groove formed in the inner side surface of the supporting disc. A guiding block is fixedly connected to the outer surface of the threaded rod, and the guiding block is slidably connected with the inner side surface of the vertical groove. Under the guiding and restricting action of the vertical groove, the guiding block can only perform linear motion in the vertical direction along the vertical groove. Thus, when the threaded sleeve rotates, it can drive the threaded rod to perform stable vertical motion.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. The underground water level measuring device for hydrogeological survey guides and lowers the scale lead wire through a guiding mechanism, so that the sensing probe is not easily rubbed against the inner wall of the guiding tube during the lowering process. At the same time, through holes are provided on both the side and the bottom of the guiding tube, so that when the guiding tube enters the detection hole, the water inside it can enter its interior from the bottom and side of the guiding tube, making the water level inside it always consistent with the water level inside the detection hole. Thus, when the sensing probe moves downward, it can more accurately contact the water surface of the detection hole for measurement.

[0016] 2. The underground water level measuring device for hydrogeological survey can adjust the levelness of the guiding tube during its use through the use of a support plate and a horizontal calibration mechanism, so that it can maintain a vertical state after entering the detection hole. Thus, when the sensing probe is lowered, it can always be on the central axis of the guiding tube, so that the scale lead wire always remains vertical, and the underground water level can be measured more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a top view of the present utility model;

[0018] Figure 2 is a bottom view of the present utility model;

[0019] Figure 3 is the present utility model Figure 2 the enlarged structural schematic diagram at A in;

[0020] Figure 4 is the structural schematic diagram of the positional relationship between the scale lead wire and the guiding plate of the present utility model;

[0021] Figure 5 is the present utility model Figure 4 the enlarged structural schematic diagram at B in;

[0022] Figure 6 is the structural schematic diagram of the support plate of the present utility model;

[0023] Figure 7 is the internal structural schematic diagram of the support plate of the present utility model;

[0024] Figure 8 is the present utility model Figure 7 the enlarged structural schematic diagram at C in

[0025] The corresponding relationship between the reference numerals and the component names in the drawings is as follows:

[0026] 1. Sensing probe; 2. Scale lead wire; 3. Guide tube; 4. Through hole; 5. Support disc; 6. Through slot; 7. Guide mechanism; 71. Bracket; 72. Guide plate; 73. Guide groove; 74. Straight groove; 8. Horizontal calibration mechanism; 81. Level; 82. Threaded sleeve; 83. Threaded column; 84. Guide member; 841. Vertical groove; 842. Guide block. Detailed implementation mode

[0027] Please refer to Figures 1 to 8 : A groundwater level measuring device for hydrogeological investigation, including a sensing probe 1 and a scale lead wire 2 fixedly connected to the end of the sensing probe 1. The scale lead wire 2 is an electric wire with scale lines engraved on its surface, which is prior art and will not be elaborated here. The groundwater level measuring device for hydrogeological investigation further includes: a guide tube 3, which is arranged outside the scale lead wire 2, and through holes 4 are opened on the side and bottom of the guide tube 3; a support disc 5, which is fixedly connected to the top of the guide tube 3, and a through slot 6 communicating with the guide tube 3 is opened on the surface of the support disc 5; a guide mechanism 7, which is arranged on the top of the support disc 5. The guide mechanism 7 includes two brackets 71 fixedly connected to the top of the support disc 5. The two brackets 71 are symmetrically distributed on both sides of the through slot 6. A guide plate 72 is fixedly connected between the two brackets 71. A guide groove 73 is opened in the middle of the guide plate 72, and a straight groove 74 is opened on the surface of the guide plate 72.

[0028] In this embodiment, the dimension value of the guide groove 73 corresponds to the wire diameter value of the scale lead wire 2, so that the scale lead wire 2 can enter the guide groove 73, and the guide groove 73 can stably guide it.

[0029] In this embodiment, the shape of the guide groove 73 is arc-shaped, and the guide groove 73 is concentric with the guide tube 3. When the sensing probe 1 moves downward under the conveyance of the scale lead wire 2, it can always remain in the middle position of the guide tube 3 and keep it vertical, so as to perform more accurate data measurement.

[0030] In this embodiment, one end of the straight groove 74 is communicated with the guide groove 73, and the other end of the straight groove 74 penetrates through the side wall of the guide plate 72, so that the scale lead wire 2 can pass through the straight groove 74 and enter the guide groove 73 during use.

[0031] In this embodiment, a horizontal calibration mechanism 8 is arranged inside the support disc 5. The horizontal calibration mechanism 8 includes two levels 81 fixedly embedded in the top of the support disc 5. A plurality of threaded sleeves 82 are rotatably connected to the bottom of the support disc 5. The inner side surface of the threaded sleeve 82 is threadedly connected with a threaded column 83, and a guide member 84 is arranged outside the threaded column 83.

[0032] In this embodiment, the two spirit levels 81 are arranged perpendicular to each other, so that the two spirit levels 81 can cooperate with each other to detect the inclination in different directions.

[0033] In this embodiment, the guiding member 84 includes a vertical groove 841 formed on the inner side surface of the supporting disc 5. A guiding block 842 is fixedly connected to the outer surface of the threaded post 83. The guiding block 842 is slidably connected to the inner side surface of the vertical groove 841. Under the guiding and restricting action of the vertical groove 841, the guiding block 842 can only perform linear motion in the vertical direction along the vertical groove 841. Thus, when the threaded sleeve 82 rotates, it can drive the threaded post 83 to perform stable vertical motion.

[0034] Working principle: During use, the guiding tube 3 is placed into the detection hole. Since through holes 4 are formed in the bottom and side surfaces of the guiding tube 3, when the guiding tube 3 contacts the water surface in the detection hole, the water inside it starts to quickly enter the guiding tube 3, making the real-time water level in the guiding tube 3 the same as the real-time water level in the detection hole. Then, the supporting disc 5 is supported at the top position of the detection hole. At this time, according to the spirit level 81 provided on the top of the supporting disc 5, it is checked whether the supporting disc 5 is in a horizontal state. When it is inclined, the operator rotates the threaded sleeve 82 at the corresponding position. Due to the guiding and restricting action of the vertical groove 841, the guiding block 842 can only perform linear motion in the vertical direction. Thus, when the threaded sleeve 82 rotates, the threaded post 83 can perform vertical motion, enabling the height of the supporting disc 5 at this position to be adjusted, thereby adjusting the overall levelness of the supporting disc 5 to keep the supporting disc 5 in a horizontal state. When the supporting disc 5 reaches the horizontal state, the guiding tube 3 at its bottom reaches the vertical state;

[0035] At this time, the operator puts the sensing probe 1 into the guiding tube 3, and makes the scale lead 2 pass through the straight groove 74 and enter the guiding groove 73. Then, the operator tilts the pay-off end of the scale lead 2 in a direction away from the straight groove 74 and slowly pays out the line, so that the sensing probe 1 can smoothly move downward along the central axis of the guiding tube 3, thereby enabling more accurate measurement of the groundwater level inside the detection hole.

[0036] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A groundwater level measuring device for hydrogeological survey, comprising a sensor probe (1) and a scale lead (2) fixedly connected to the end of the sensor probe (1), characterized in that: Also includes: A guide tube (3) is arranged outside the scale lead (2), and the side surface and bottom surface of the guide tube (3) are both provided with through holes (4); A support plate (5) fixedly connected to the top of the guide tube (3), wherein a through groove (6) communicating with the guide tube (3) is formed on the surface of the support plate (5); A guide mechanism (7) is arranged on the top of the support plate (5), the guide mechanism (7) comprising two brackets (71) fixedly connected to the top of the support plate (5), the two brackets (71) being symmetrically distributed on both sides of the through slot (6), a guide plate (72) being fixedly connected between the two brackets (71), a guide slot (73) being provided in the middle of the guide plate (72), and a straight slot (74) being provided on the surface of the guide plate (72).

2. The groundwater level measuring device for hydrogeological survey according to claim 1, characterized in that: The size value of the guide groove (73) corresponds to the wire diameter value of the scale lead (2).

3. The underground water level measuring device for hydrogeological survey according to claim 1, characterized in that: The guide groove (73) is in the shape of an arc, and the guide groove (73) and the guide tube (3) are arranged cocentrically.

4. The underground water level measuring device for hydrogeological survey according to claim 1, characterized in that: One end of the straight groove (74) is connected to the guide groove (73), and the other end of the straight groove (74) passes through the side wall of the guide plate (72).

5. The underground water level measuring device for hydrogeological survey according to claim 1, characterized in that: A horizontal correction mechanism (8) is arranged inside the support plate (5), and the horizontal correction mechanism (8) comprises two spirit levels (81) fixedly embedded in the top of the support plate (5); a plurality of threaded sleeves (82) are rotatably connected to the bottom of the support plate (5); a threaded column (83) is threadedly connected to the inner side surface of the threaded sleeve (82); and a guide member (84) is arranged outside the threaded column (83).

6. The underground water level measuring device for hydrogeological survey according to claim 5, characterized in that: The two levels (81) are arranged perpendicular to each other.

7. The underground water level measuring device for hydrogeological survey according to claim 5, characterized in that: The guide member (84) comprises a vertical groove (841) formed on the inner side of the support plate (5); a guide block (842) is fixedly connected to the outer surface of the threaded column (83); and the guide block (842) is slidably connected to the inner side of the vertical groove (841).

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