Automatic monitoring device for underground water environment

Abstract

The utility model discloses an automatic monitoring device for underground water environment, which comprises a control host and a water level monitoring mechanism, the control host is connected with the water level monitoring mechanism through a tensile cable, the water level monitoring mechanism comprises a cylinder, and the top end of the cylinder is fixedly connected with a speed reducing motor; when the throw-in type water level sensor is used, after the water level monitoring mechanism is thrown into an underground water monitoring well, the gear motor is started to drive the two-way screw rod to rotate, so that the two nuts can be driven to move reversely at the same time, the supporting plate is pushed by the connecting rod to be tightly attached to the well wall of the monitoring well, and the throw-in type water level sensor is fixed in the monitoring well. The size change of the tensile cable due to thermal expansion and cold contraction and the fluctuation of water in the monitoring well cannot influence the distance between the throw-in type water level sensor and the wellhead, so that the throw-in type water level sensor can accurately monitor the liquid level height in the monitoring well; the device is suitable for long-term monitoring of the water level height in an underground water monitoring well and has a good use effect.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater monitoring, in particular to an automatic groundwater environment monitoring device. Background Art

[0002] Groundwater monitoring is for groundwater monitoring management departments to monitor groundwater levels, water quality and other data within their jurisdiction in order to keep abreast of dynamic changes and provide long-term protection for groundwater.

[0003] After searching, the patent with announcement number CN221667029U discloses a groundwater resource water level monitoring device, which can effectively protect the water level monitor by arranging a protective box on the outside of the water level monitor to prevent it from being damaged by friction and collision with the well wall, thereby affecting the working effect. By arranging a buffer assembly, a protective counterweight block and an arc-shaped protective plate on the outer wall of the protective box for coordinated use, when the protective box is collided, the buffer assembly, the protective counterweight block and the arc-shaped protective plate can effectively buffer and reduce shock, thereby further improving the protective performance of the water level monitor and facilitating better working use. By arranging a base at the bottom of the water level monitor and movably connecting it with the fixed slot, and at the same time arranging a fixed sleeve, a compression spring, a movable rod and a limit sleeve at the bottom of the cover plate for coordinated use, the movable rod is movably connected to the fixed sleeve, and the limit sleeve is movably connected to the water level monitor, the water level monitor can be effectively fixed and limited, thereby further improving its working stability.

[0004] Although the above scheme can protect the water level monitor, in actual use, since the protection box and the water level monitor are only connected to the winding device through a pull rope, and the protection box is not fixed in the monitoring well, when the water flow in the monitoring well is unstable or the pull rope changes in size due to thermal expansion and contraction, the vertical distance between the water level monitor and the wellhead of the monitoring well will change, resulting in large errors in the monitoring data. Therefore, this scheme is not suitable for long-term monitoring of the water level height in the groundwater monitoring well and needs to be improved. Utility Model Content

[0005] The purpose of the present invention is to provide an automatic groundwater environment monitoring device to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] The control device of claim 1, wherein the control host is connected to the water level monitoring mechanism by a tensile cable. The water level monitoring mechanism comprises a cylinder, the top of the cylinder is fixedly connected to a reduction motor, and the reduction motor is connected to the tensile cable. The output shaft of the reduction motor is fixedly connected to a two-way threaded rod after passing through the cylinder, and the outer wall of the two-way threaded rod is cooperatively sleeved with two nuts. The outer wall of the cylinder is circumferentially provided with three support plates, and the support plates are connected to the cylinder through a guide mechanism. Open grooves are penetrated at the outer wall of the cylinder and the corresponding positions of each support plate. The outer wall of the support plate is hinged with two connecting rods, and one end of the connecting rod away from the support plate is passed through the open groove into the cylinder and is hinged with the corresponding nut. The bottom end of the cylinder is fixedly provided with a connecting pipe, and the bottom end of the connecting pipe is fixedly provided with an immersion water level sensor, and the wire of the immersion water level sensor is connected to the tensile cable.

[0008] As a further solution of the present invention: the guiding mechanism includes two conduits symmetrically arranged on both sides of the opening groove, one end of the conduit is fixedly connected to the cylinder, and the other end of the conduit is slidably penetrated by a guide rod, and the guide rod is fixedly connected to the corresponding support plate.

[0009] As a further solution of the present invention: the outer wall of the cylinder and the corresponding parts of each open groove are fixedly and sealedly connected with a rubber bellows, the end of the rubber bellows away from the open groove is fixedly and sealedly connected to the corresponding support plate, and the connecting rod, conduit and guide rod are all located in the corresponding rubber bellows.

[0010] As a further solution of the present invention: the reduction motor is fixedly and sealedly connected to the top end of the cylinder, the connecting pipe is fixedly and sealedly connected to the cylinder, and the immersion water level sensor is fixedly and sealedly connected to the connecting pipe.

[0011] As a further solution of the present invention: a plurality of guide wheels are installed on the bottom end of the connecting pipe in a circumferential distribution.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] When the utility model is in use, after the water level monitoring mechanism is thrown into the groundwater monitoring well, the reduction motor is started to drive the bidirectional screw to rotate, which can drive the two nuts to move in opposite directions at the same time, so that the supporting plate is pushed to fit tightly against the wall of the monitoring well by utilizing the connecting rod, so as to fix the immersive water level sensor in the monitoring well, so that the dimensional change of the tensile cable due to thermal expansion and contraction and the fluctuation of the water body in the monitoring well will not affect the distance between the immersive water level sensor and the wellhead, so that the immersive water level sensor can monitor the liquid level in the monitoring well more accurately, is suitable for long-term monitoring of the water level in the groundwater monitoring well, and has good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a structural diagram of an automatic groundwater environment monitoring device.

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0016] Figure 3 This is a schematic diagram of the distribution structure of the support plate in an automatic groundwater environment monitoring device.

[0017] Among them, the cylinder 1, the reduction motor 2, the tensile cable 3, the bidirectional threaded rod 4, the nut 5, the open groove 6, the connecting rod 7, the support plate 8, the conduit 9, the guide rod 10, the rubber bellows 11, the connecting pipe 12, the immersion water level sensor 13, the guide wheel 14, and the well wall 15. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figures 1 to 3 In the embodiment of the present utility model, an automatic monitoring device for underground water environment includes a control host and a water level monitoring mechanism. The control host is connected to the water level monitoring mechanism through a tensile cable 3. A scale bar is provided on the surface of the tensile cable 3. The water level monitoring mechanism includes a cylinder 1. The top of the cylinder 1 is fixedly connected to a waterproof reduction motor 2, and the reduction motor 2 is connected to the tensile cable 3. The output shaft of the reduction motor 2 is inserted into the cylinder 1 and fixedly connected to a bidirectional threaded rod 4. The outer wall of the bidirectional threaded rod 4 is fitted with two nuts 5. The outer wall of the cylinder 1 is Three support plates 8 are arranged in a circumferential distribution, and the support plates 8 are connected to the cylinder 1 through a guide mechanism. Open grooves 6 are provided through the outer wall of the cylinder 1 and the corresponding parts of each support plate 8. The outer walls of the support plates 8 are hinged with two connecting rods 7. The end of the connecting rod 7 away from the support plate 8 passes through the open groove 6 into the cylinder 1 and is hinged to the corresponding nut 5. A connecting pipe 12 is fixedly penetrated at the bottom end of the cylinder 1, and a immersion water level sensor 13 is fixedly installed at the bottom end of the connecting pipe 12. The wire of the immersion water level sensor 13 is connected to the tensile cable 3.

[0020] The utility model adopts the above-mentioned scheme. When in use, after the water level monitoring mechanism is thrown into the groundwater monitoring well, the scale bar on the tensile cable 3 is observed to be aligned with the wellhead, so that the water level monitoring mechanism is sunk to the required depth in the well, and then the reduction motor 2 is started to drive the bidirectional screw 4 to rotate, which can drive the two nuts 5 to move in opposite directions at the same time, so as to use the connecting rod 7 to push the support plate 8 away from the cylinder 1 until the support plate 8 is in close contact with the well wall 15 of the monitoring well, so as to fix the cylinder 1 and the immersion water level sensor 13 in the monitoring well, so that the dimensional change of the tensile cable 3 due to thermal expansion and contraction and the fluctuation of the water body in the monitoring well will not affect the distance between the immersion water level sensor 13 and the wellhead, so that the immersion water level sensor 13 can monitor the liquid level height in the monitoring well more accurately, is suitable for long-term monitoring of the water level height in the groundwater monitoring well, and has good use effect.

[0021] Specific combination Figure 1 and Figure 2 In one embodiment of the present utility model, the guiding mechanism includes two conduits 9 symmetrically arranged on both sides of the opening groove 6, one end of the conduit 9 is fixedly connected to the cylinder 1, and the other end of the conduit 9 is slidably penetrated by a guide rod 10, and the guide rod 10 is fixedly connected to the corresponding support plate 8.

[0022] Through the cooperation between the guide tube 9 and the guide rod 10 , the support plate 8 can be guided on the outside of the cylinder 1 to ensure the stability of the movement of the support plate 8 .

[0023] Specific combination Figure 1-3 In one embodiment of the present utility model, the outer wall of the cylinder 1 and the corresponding parts of each opening groove 6 are fixedly and sealedly connected with a rubber bellows 11, the end of the rubber bellows 11 away from the opening groove 6 is fixedly and sealedly connected to the corresponding support plate 8, and the connecting rod 7, the conduit 9 and the guide rod 10 are all located in the corresponding rubber bellows 11. Furthermore, the reduction motor 2 is fixedly and sealedly connected to the top of the cylinder 1, the connecting pipe 12 is fixedly and sealedly connected to the cylinder 1, and the immersion water level sensor 13 is fixedly and sealedly connected to the connecting pipe 12.

[0024] By setting the rubber bellows 11, the cylinder 1 can be sealed, so that the cylinder 1 and each rubber bellows 11 together form a sealed chamber, thereby effectively preventing groundwater in the monitoring well from entering the cylinder 1, so as to ensure that the bidirectional threaded rod 4 and the nut 5 can cooperate and operate stably for a long time. In order to avoid the buoyancy generated by the sealed chamber causing the water level monitoring mechanism to be difficult to sink in the monitoring well, deionized water can be injected into the sealed chamber in advance.

[0025] Specific combination Figure 1In one embodiment of the present invention, a plurality of guide wheels 14 are installed on the bottom end of the connecting pipe 12 in a circumferential distribution. Through the setting of the guide wheels 14, the probe end of the immersive water level sensor 13 can be effectively prevented from contacting the well wall 15 during the sinking process of the water level monitoring mechanism.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic groundwater environment monitoring device, characterized by: The invention comprises a control host and a water level monitoring mechanism, wherein the control host is connected to the water level monitoring mechanism via a tensile cable (3), and the water level monitoring mechanism comprises a cylinder (1), the top end of the cylinder (1) is fixedly connected to a reduction motor (2), and the reduction motor (2) is connected to the tensile cable (3), and the output shaft of the reduction motor (2) is inserted into the cylinder (1) and fixedly connected to a bidirectional threaded rod (4), the outer wall of the bidirectional threaded rod (4) is fitted with two nuts (5), and the outer wall of the cylinder (1) is provided with three support plates (8) in a circumferential distribution, and the support plates (8) are all connected by guide rails. The mechanism is connected to the cylinder (1); an open groove (6) is provided through the outer wall of the cylinder (1) and the corresponding position of each support plate (8); the outer wall of the support plate (8) is hinged with two connecting rods (7); one end of the connecting rod (7) away from the support plate (8) passes through the open groove (6) into the cylinder (1) and is hinged with the corresponding nut (5); a connecting pipe (12) is fixedly provided at the bottom end of the cylinder (1); a immersion water level sensor (13) is fixedly provided at the bottom end of the connecting pipe (12); and the lead of the immersion water level sensor (13) is connected to the tensile cable (3).

2. The automatic groundwater environment monitoring device according to claim 1, characterized in that: The guide mechanism comprises two conduits (9) symmetrically arranged on both sides of the opening groove (6), one end of the conduit (9) is fixedly connected to the cylinder (1), and the other end of the conduit (9) is slidably penetrated by a guide rod (10), and the guide rod (10) is fixedly connected to the corresponding support plate (8).

3. The automatic groundwater environment monitoring device according to claim 1, characterized in that: The outer wall of the cylinder (1) and the corresponding position of each opening groove (6) are fixedly and sealedly connected with a rubber bellows (11); one end of the rubber bellows (11) away from the opening groove (6) is fixedly and sealedly connected to the corresponding support plate (8); and the connecting rod (7), the conduit (9) and the guide rod (10) are all located in the corresponding rubber bellows (11).

4. The automatic groundwater environment monitoring device according to claim 3, characterized in that: The reduction motor (2) is fixedly and sealedly connected to the top end of the cylinder (1), the connecting pipe (12) is fixedly and sealedly connected to the cylinder (1), and the immersion water level sensor (13) is fixedly and sealedly connected to the connecting pipe (12).

5. The automatic groundwater environment monitoring device according to claim 1, characterized in that: A plurality of guide wheels (14) are installed on the bottom end of the connecting pipe (12) in a circumferentially distributed manner.

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