Drill hole water level measuring device

Abstract

The invention discloses a drilling water level measuring device which comprises a supporting frame set, a winding frame set is arranged on the inner side of the supporting frame set, a guide frame set is arranged on the side face of the supporting frame set, a measuring line is wound around the outer side of the winding frame set, and one end of the measuring line penetrates through the guide frame set to be fixedly connected with a measuring head. The guiding frame set comprises a guiding main frame, the two ends of the guiding main frame are fixedly connected with the supporting frame set, and the inner side of the guiding main frame is fixedly connected with a guiding support. According to the drill hole water level measuring device provided by the invention, when the device is used, the measuring head is continuously put into the drill hole, and when the measuring head is in contact with the water surface, the measuring head gives an alarm, so that the water level depth is observed, and the winding frame group is rotated to realize the retraction operation of the measuring head; the measuring head can be guided through the guide frame group, so that the measuring head can be lifted in the middle, the friction between the measuring head and the hole wall and the friction between the measuring line and the hole wall can be reduced, and the interference and abrasion phenomena are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of water level measurement, in particular to a borehole water level measuring device. Background Art

[0002] A borehole water level measuring device for hydrogeological survey is an instrument used to measure groundwater levels. It usually consists of the following parts: Borehole logging instrument: This is an instrument that can be lowered into a borehole to measure the water level. It usually has a sensor that can sense the water level in the borehole and transmit relevant data to a data recorder or computer. Data recorder or computer: This is a device used to store and process borehole water level measurement data. It can receive signals from the borehole logging instrument and record water level measurement data. Communication equipment (optional): In some specific cases, the borehole water level measuring device may be equipped with communication equipment to transmit water level measurement data to geological engineers or other relevant personnel in real time. The function of the borehole water level measuring device is to determine the depth and distribution of groundwater levels.

[0003] When measuring the liquid water level inside the borehole, it is usually measured manually by holding and laying out the line. However, manual measurement is not conducive to the centering of the measuring head when it descends, causing friction between the measuring head and the measuring line and the hole wall. The measuring head is a precision component, which increases interference and wear. For this reason, the application proposes a borehole water level measuring device to solve the above-mentioned technical problems and provide a new technical solution. Summary of the invention

[0004] Based on this, it is necessary to provide a borehole water level measuring device to address the above-mentioned technical problems. When the equipment is in use, a measuring head is continuously placed inside the borehole. When the measuring head touches the water surface, an alarm will be triggered, so that the water level depth can be observed. The measuring head can be retracted and extended by rotating the winding frame group. The measuring head can be guided by the guide frame group to keep it centered and raised, thereby reducing the friction between the measuring head and the measuring line and the hole wall, and reducing interference and wear.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: A borehole water level measuring device is used for borehole water level measurement.

[0006] The borehole water level measuring device specifically comprises: A support frame group, wherein a winding frame group is arranged inside the support frame group, a guide frame group is arranged on the side of the support frame group, a measuring line is wound around the outer side of the winding frame group, and one end of the measuring line passes through the guide frame group and is fixedly connected to a measuring head; The guide frame group includes a guide main frame, both ends of the guide main frame are fixedly connected to the support frame group, the inner side of the guide main frame is fixedly connected with a guide bracket, a positioning hole is opened in the middle of the guide main frame, a wire receiving groove is opened in the middle of the guide bracket, and the measuring line is located inside the positioning hole and the wire receiving groove; A limit guide rod is provided on the side of the guide bracket, one end of the limit guide rod is fixedly connected to a guide ring, the measuring line is located on the inner side of the guide ring, a driving mechanism is provided above the guide bracket, the other end of the limit guide rod is connected to the driving mechanism, and the driving mechanism is used to drive the limit guide rod to reciprocate left and right; The driving mechanism includes an outer shell, which is fixedly connected to the guide bracket, and both ends of the inner side of the outer shell are rotatably connected to driving wheels, and the two driving wheels are connected by a transmission belt. A rectangular block is fixedly connected to the inside of the outer shell and on the inner side of the transmission belt, and a driving plug-in cylinder is fixedly connected to the outer side of the driving wheel. The limiting guide rod is plug-connected to the driving plug-in cylinder, and a cover body is fixedly connected to the outer side of the outer shell, and the limiting guide rod is slidably connected to the cover body through a guide wheel group.

[0007] As a preferred embodiment of the borehole water level measuring device provided by the present invention, one end of the outer shell is fixedly connected to a driving motor, the output end of the driving motor is fixedly connected to a driving gear, one end of the driving wheel extends to the outside of the outer shell, and the end of the driving wheel located on the outside of the outer shell is fixedly connected to a driven gear, and the driven gear is meshingly connected to the driving gear.

[0008] As a preferred embodiment of the borehole water level measuring device provided by the present invention, the guide wheel group includes a limit frame and a limit wheel group, the upper and lower ends of the cover body are provided with movable through grooves, both ends of the limit guide rod extend to the outside of the cover body through the movable through grooves, the outer side of the cover body is sleeved with a limit frame, both ends of the limit frame are fixedly connected to the end of the limit guide rod, two groups of limit wheel groups are fixedly connected to the limit frame, each group of the limit wheel group is provided with two guide wheels, and the cover body is provided with limit slide grooves at positions along the length direction and corresponding to the limit wheel groups, and the guide wheels of the limit wheel group are located inside the limit slide grooves.

[0009] As a preferred embodiment of the borehole water level measuring device provided by the present invention, a driving rod is arranged on the side of the limiting guide rod, one end of the driving rod is plug-connected with the driving plug cylinder, and the other end of the driving rod is fixedly connected with a driving tractor, and the driving tractor is slidably connected with the limiting guide rod.

[0010] As a preferred implementation of the borehole water level measuring device provided by the present invention, a protective ring is fastened inside the positioning hole, and the inner side of the protective ring is arranged in an arc shape.

[0011] As a preferred embodiment of the borehole water level measuring device provided by the present invention, the winding frame group includes a rotating shaft, bearings are provided at both ends of the rotating shaft, and the rotating shaft is fixedly connected with a limit baffle at a position close to the end, and the two limit baffles are fixedly connected with a winding plate on one side where they are tested against each other, and a plurality of support plates are fixedly connected at the outside of the rotating shaft and at a position between the two limit baffles, and the inner side of the winding plate is fixedly connected to the support plate.

[0012] As a preferred embodiment of the borehole water level measuring device provided by the present invention, the support frame group includes a mounting frame, the tops of both sides of the mounting frame are fixedly connected with vertical frames, the upper ends of the vertical frames are fixedly connected with ring frames, the bearings are located on the inner sides of the ring frames, the ends of the guide frame group are fixedly connected with the ring frames at the same ends, stabilizing frames are provided at the upper ends of the mounting frame and at positions on both sides of the vertical frames, the upper ends of the stabilizing frames are fixedly connected with the vertical frames, and the lower ends of the stabilizing frames are fixedly connected with the mounting frame.

[0013] As a preferred embodiment of the borehole water level measuring device provided by the present invention, a protective frame is arranged above the mounting frame, the lower end of the protective frame is fixedly connected to the ring frame of the through end, and the top of the protective frame is fixedly connected with a handle.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The borehole water level measuring device provided by the present invention, when the equipment is in use, a measuring head is continuously placed inside the borehole, and an alarm is triggered when the measuring head touches the water surface, so that the water level depth can be observed, and the retraction and extension operation of the measuring head can be realized by rotating the winding frame group, and the measuring head can be guided by the guide frame group to keep it centered and raised, thereby reducing the friction between the measuring head and the measuring line and the hole wall, and reducing the occurrence of interference and wear.

[0015] The borehole water level measuring device provided by the present invention can guide the retracted measuring line through the structural design of the driving mechanism and the limiting guide rod, so that the measuring line can be evenly wound on the surface of the winding frame group, and the phenomenon of wire piling caused by winding the measuring line at the same position can be effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the scheme of the present invention, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1A schematic diagram of the overall structure of the borehole water level measuring device provided by the present invention; Figure 2 A side view of the overall structure of the borehole water level measuring device provided by the present invention; Figure 3 A schematic diagram of the structure of the guide frame assembly and the driving mechanism of the borehole water level measuring device provided by the present invention; Figure 4 A schematic structural diagram of a guide frame assembly of a borehole water level measuring device provided by the present invention; Figure 5 A schematic diagram of the structure of the driving mechanism of the borehole water level measuring device provided by the present invention; Figure 6 A schematic diagram of the structure inside the outer shell of the borehole water level measuring device provided by the present invention; Figure 7 A schematic diagram of the structure of a driving motor and a driving gear of a borehole water level measuring device provided by the present invention; Figure 8 A schematic diagram of the structure of a limit wheel assembly of a borehole water level measuring device provided by the present invention; Fig. 9 A schematic diagram of the structure of the protection ring of the borehole water level measuring device provided by the present invention; Fig.10 A schematic diagram of the structure of a winding frame assembly of a borehole water level measuring device provided by the present invention; Fig.11 A schematic structural diagram of a support frame assembly for a borehole water level measuring device provided by the present invention.

[0018] The markings in the figure are as follows: 1. Support frame group; 2. Winding frame group; 3. Guide frame group; 4. Measuring line; 5. Measuring head; 6. Guide main frame; 7. Guide bracket; 8. Positioning hole; 9. Wire take-up groove; 10. Limit guide rod; 11. Driving mechanism; 12. Outer shell; 13. Cover body; 14. Driving wheel; 15. Transmission belt; 16. Rectangular block; 17. Driving plug cylinder; 18. Driven gear; 19. Driving motor; 20. Driving gear; 21. Movable through groove; 22. Limit slide groove; 23. Limit frame; 24. Limit wheel group; 25. Driving plug rod; 26. Driving tractor; 27. Protective ring; 28. Rotating shaft; 29. ​​Bearing; 30. Limit baffle; 31. Winding plate; 32. Support plate; 33. Mounting frame; 34. Stand; 35. Stabilizing frame; 36. Ring frame; 37. Protective frame; 38. Handle. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme 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. Obviously, the described embodiments 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 creative work should fall within the scope of protection of the present invention.

[0020] As described in the background art, manual measurement is not conducive to the centering of the measuring head when it descends, causing friction between the measuring head and the measuring line and the hole wall. The measuring head is a precision component, which increases interference and wear.

[0021] In order to solve this technical problem, the present invention provides a borehole water level measuring device, which is applied to borehole water level measurement.

[0022] Specifically, please refer to Figure 1 - Fig. 9 , the borehole water level measuring device specifically includes: A support frame group 1, a winding frame group 2 is arranged inside the support frame group 1, a guide frame group 3 is arranged on the side of the support frame group 1, a measuring line 4 is wound around the outer side of the winding frame group 2, and one end of the measuring line 4 passes through the guide frame group 3 and is fixedly connected to a measuring head 5; The guide frame group 3 includes a guide main frame 6, both ends of which are fixedly connected to the support frame group 1, a guide bracket 7 is fixedly connected to the inner side of the guide main frame 6, a positioning hole 8 is opened in the middle of the guide main frame 6, a wire collection groove 9 is opened in the middle of the guide bracket 7, and the measuring line 4 is located inside the positioning hole 8 and the wire collection groove 9; A limit guide rod 10 is provided on the side of the guide bracket 7, one end of the limit guide rod 10 is fixedly connected to a guide ring, the measuring line 4 is located inside the guide ring, a driving mechanism 11 is provided above the guide bracket 7, the other end of the limit guide rod 10 is connected to the driving mechanism 11, and the driving mechanism 11 is used to drive the limit guide rod 10 to reciprocate left and right; The driving mechanism 11 includes an outer shell 12, which is fixedly connected to the guide bracket 7. Both ends of the inner side of the outer shell 12 are rotatably connected to driving wheels 14, and the two driving wheels 14 are connected by a transmission belt 15. A rectangular block 16 is fixedly connected inside the outer shell 12 and on the inner side of the transmission belt 15. A driving plug-in cylinder 17 is fixedly connected to the outer side of the driving wheel 14. The limiting guide rod 10 is plug-connected to the driving plug-in cylinder 17. The outer side of the outer shell 12 is fixedly connected to a cover body 13, and the limiting guide rod 10 is slidably connected to the cover body 13 through a guide wheel group.

[0023] The borehole water level measuring device provided by the present invention, when the equipment is used, the measuring head 5 is continuously placed inside the borehole, and the measuring head 5 will alarm when it touches the water surface, so as to observe it and obtain the water level depth, and the measuring head 5 can be retracted and extended by rotating the winding frame group 2, and the measuring head 5 can be guided by the guide frame group 3 to keep it centered and raised, thereby reducing the friction between the measuring head 5 and the measuring line 4 and the hole wall, and reducing the occurrence of interference and wear.

[0024] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0025] Embodiment 1: Please refer to Figure 1 - Fig. 9 , a borehole water level measuring device, comprising: A support frame group 1 is provided with a winding frame group 2 on the inner side of the support frame group 1, a guide frame group 3 is provided on the side of the support frame group 1, a measuring line 4 is wound on the outer side of the winding frame group 2, and one end of the measuring line 4 passes through the guide frame group 3 and is fixedly connected with a measuring head 5; when the equipment is used, the measuring head 5 is continuously placed inside the borehole, and the measuring head 5 will alarm when it touches the water surface, so as to observe it and obtain the water level depth, and the measuring head 5 can be retracted and extended by rotating the winding frame group 2, and the measuring head 5 can be guided by the guide frame group 3 to keep it centered and raised, thereby reducing the friction between the measuring head 5 and the measuring line 4 and the hole wall, and reducing the occurrence of interference and wear.

[0026] Specifically, the guide frame group 3 includes a guide main frame 6, both ends of the guide main frame 6 are fixedly connected to the support frame group 1, a guide bracket 7 is fixedly connected to the inner side of the guide main frame 6, a positioning hole 8 is opened in the middle of the guide main frame 6, a wire collection groove 9 is opened in the middle of the guide bracket 7, and the measuring line 4 is located on the inner side of the positioning hole 8 and the wire collection groove 9; further, a limiting guide rod 10 is arranged on the side of the guide bracket 7, one end of the limiting guide rod 10 is fixedly connected to a guide ring, the measuring line 4 is located on the inner side of the guide ring, and a driving mechanism 11 is arranged above the guide bracket 7, the other end of the limiting guide rod 10 is connected to the driving mechanism 11, and the driving mechanism 11 is used to drive the limiting guide rod 10 to reciprocate left and right; wherein, in order to reduce the wear of the measuring line 4, a protective ring 27 is buckled inside the positioning hole 8, and the inner side of the protective ring 27 is arranged in an arc shape. It can be seen that the direction position of the measuring line 4 is limited by the guidance of the positioning hole 8, so that the centering lifting and lowering of the measuring head 5 is realized; in the process of winding the line, the limiting guide rod 10 is driven by the driving mechanism 11 to reciprocate left and right, so that the measuring line 4 can be evenly wound on the surface of the winding frame group 2.

[0027] Specifically, the driving mechanism 11 includes an outer shell 12, which is fixedly connected to the guide bracket 7. Both ends of the inner side of the outer shell 12 are rotatably connected to driving wheels 14, and the two driving wheels 14 are connected by a transmission belt 15. A rectangular block 16 is fixedly connected inside the outer shell 12 and on the inner side of the transmission belt 15. A driving plug-in cylinder 17 is fixedly connected to the outer side of the driving wheel 14. The limiting guide rod 10 is plug-connected to the driving plug-in cylinder 17. The outer side of the outer shell 12 is fixedly connected to a cover body 13, and the limiting guide rod 10 is slidably connected to the cover body 13 through a guide wheel group. It can be known that the driving belt 15 can be driven to move by rotating the driving wheel 14, thereby driving the driving insert cylinder 17 to perform a circular motion. The limiting guide rod 10 is plugged into the driving insert cylinder 17 to make the limiting guide rod 10 move synchronously with the driving insert cylinder 17. The guiding wheel group is slidably connected to the cover body 13 to limit the movement of the limiting guide rod 10, so that the limiting guide rod 10 reciprocates left and right, thereby dragging the measuring line 4 to be evenly wound left and right on the surface of the winding frame group 2 through the guide ring at the lower end of the limiting guide rod 10.

[0028] Furthermore, one end of the outer shell 12 is fixedly connected to a driving motor 19, and the output end of the driving motor 19 is fixedly connected to a driving gear 20, wherein the end of one driving wheel 14 extends to the outside of the outer shell 12, and the end of the driving wheel 14 located on the outside of the outer shell 12 is fixedly connected to a driven gear 18, and the driven gear 18 is meshingly connected with the driving gear 20; it can be seen that by starting the driving motor 19 to drive the driving gear 20 to rotate, and through the meshing connection between the driven gear 18 and the driving gear 20, the driving gear 20 can drive the driving wheel 14 to rotate synchronously when it rotates, thereby driving the transmission belt 15 to move through the rotating driving wheel 14.

[0029] Furthermore, the guide wheel group includes a limit frame 23 and a limit wheel group 24. The upper and lower ends of the cover body 13 are provided with movable through slots 21. Both ends of the limit guide rod 10 extend to the outside of the cover body 13 through the movable through slots 21. The outside of the cover body 13 is sleeved with a limit frame 23. Both ends of the limit frame 23 are fixedly connected to the ends of the limit guide rod 10. Two groups of limit wheel groups 24 are fixedly connected to the limit frame 23. Each group of limit wheel groups 24 is provided with two guide wheels. The cover body 13 is provided with limit slide grooves 22 at positions corresponding to the limit wheel groups 24 along the length direction. The guide wheels of the limit wheel groups 24 are located inside the limit slide grooves 22. Among them, a driving plug rod 25 is provided on the side of the limit guide rod 10. One end of the driving plug rod 25 is plug-connected with the driving plug cylinder 17. The other end of the driving plug rod 25 is fixedly connected with a driving tractor 26. The driving tractor 26 is slidably connected with the limit guide rod 10.

[0030] It can be known that the upper and lower limits of the limit guide rod 10 can be achieved through the cooperation of the limit wheel group 24 on the limit frame 23 and the limit slide groove 22, so that the limit guide rod 10 can only move laterally, and the limit guide rod 10 is connected to the drive plug cylinder 17 through the drive plug rod 25, so that when the drive plug cylinder 17 moves, it can drive the limit guide rod 10 to move synchronously, wherein the end of the drive plug rod 25 is slidably connected to the limit guide rod 10 through the drive tractor 26, so that when the drive plug rod 25 drives the limit guide rod 10 to move left and right, the limit guide rod 10 will not move up and down due to the limitation of the limit wheel group 24.

[0031] Embodiment 2: The borehole water level measuring device provided in Example 1 is further optimized, specifically, as follows: Fig.10 As shown, the winding frame group 2 includes a rotating shaft 28, bearings 29 are provided at both ends of the rotating shaft 28, and a limit baffle 30 is fixedly connected to the position of the rotating shaft 28 near the end, and a winding plate 31 is fixedly connected to the side where the two limit baffles 30 test each other, and a plurality of support plates 32 are fixedly connected to the outer side of the rotating shaft 28 and located between the two limit baffles 30, and the inner side of the winding plate 31 is fixedly connected to the support plate 32.

[0032] Through the above-mentioned structural design, the rotating shaft 28 is rotatably connected to the support frame group 1 through the bearing 29 at the end, the measuring line 4 is rolled up to the outside of the multiple winding plates 31, the winding plates 31 are supported by the support plates 32, and the rolled-up measuring line 4 is blocked and limited by the limit baffle 30.

[0033] Embodiment 3: The borehole water level measuring device provided in Example 1-2 is further optimized. Specifically, Fig.11 As shown, the support frame group 1 includes a mounting frame 33, and the tops of both sides of the mounting frame 33 are fixedly connected with vertical frames 34, the upper ends of the vertical frames 34 are fixedly connected with ring frames 36, the bearing 29 is located on the inner side of the ring frame 36, the end of the guide frame group 3 is fixedly connected to the ring frame 36 at the same end, and stabilizing frames 35 are provided at the upper end of the mounting frame 33 and at positions on both sides of the vertical frames 34, the upper ends of the stabilizing frames 35 are fixedly connected to the vertical frames 34, and the lower ends of the stabilizing frames 35 are fixedly connected to the mounting frame 33.

[0034] Furthermore, in order to facilitate the transportation and movement of the device, a protective frame 37 is provided above the mounting frame 33 , the lower end of the protective frame 37 is fixedly connected to the ring frame 36 at the through end, and a handle 38 is fixedly connected to the top of the protective frame 37 .

[0035] Through the above-mentioned structural design, the stability of the bottom of the support frame group 1 is ensured by the mounting frame 33, which is also convenient for the installation of the support frame group 1. The support of the vertical frame 34 is achieved by the stabilizing frame 35, so that the vertical frame 34 is relatively stable. The connection of the winding frame group 2 is achieved by the ring frame 36. The protection frame 37 and the handle 38 are used to protect the top of the support frame group 1 and provide a gripping place.

Claims

1. A borehole water level measuring device, characterized in that: include: A support frame group (1), wherein a winding frame group (2) is arranged on the inner side of the support frame group (1), a guide frame group (3) is arranged on the side of the support frame group (1), a measuring line (4) is wound around the outer side of the winding frame group (2), and one end of the measuring line (4) passes through the guide frame group (3) and is fixedly connected to a measuring head (5); The guide frame assembly (3) comprises a guide main frame (6), both ends of the guide main frame (6) are fixedly connected to the support frame assembly (1), a guide bracket (7) is fixedly connected to the inner side of the guide main frame (6), a positioning hole (8) is provided in the middle of the guide main frame (6), a wire receiving groove (9) is provided in the middle of the guide bracket (7), and the measuring line (4) is located inside the positioning hole (8) and the wire receiving groove (9); A limiting guide rod (10) is arranged on the side of the guide bracket (7), one end of the limiting guide rod (10) is fixedly connected to a guide ring, the measuring line (4) is located inside the guide ring, a driving mechanism (11) is arranged above the guide bracket (7), the other end of the limiting guide rod (10) is connected to the driving mechanism (11), and the driving mechanism (11) is used to drive the limiting guide rod (10) to reciprocate left and right; The driving mechanism (11) comprises an outer shell (12), the outer shell (12) being fixedly connected to a guide bracket (7), the inner ends of the outer shell (12) being rotatably connected to driving wheels (14), the two driving wheels (14) being transmission-connected via a transmission belt (15), a rectangular block (16) being fixedly connected inside the outer shell (12) and located on the inner side of the transmission belt (15), the outer side of the driving wheel (14) being fixedly connected to a driving plug-in cylinder (17), the limiting guide rod (10) being plug-connected to the driving plug-in cylinder (17), the outer side of the outer shell (12) being fixedly connected to a cover body (13), the limiting guide rod (10) being slidably connected to the cover body (13) via a guide wheel assembly.

2. The borehole water level measuring device according to claim 1, characterized in that: One end of the outer shell (12) is fixedly connected to a drive motor (19), and an output end of the drive motor (19) is fixedly connected to a drive gear (20), wherein an end of one of the drive wheels (14) extends to the outside of the outer shell (12), and an end of the drive wheel (14) located outside the outer shell (12) is fixedly connected to a driven gear (18), and the driven gear (18) is meshingly connected to the drive gear (20).

3. The borehole water level measuring device according to claim 1, characterized in that: The guide wheel group comprises a limit frame (23) and a limit wheel group (24). The upper and lower ends of the cover body (13) are both provided with movable through grooves (21). Both ends of the limit guide rod (10) extend to the outside of the cover body (13) through the movable through grooves (21). The outside of the cover body (13) is sleeved with a limit frame (23). Both ends of the limit frame (23) are fixedly connected to the end of the limit guide rod (10). Two groups of limit wheel groups (24) are fixedly connected to the limit frame (23). Each group of the limit wheel group (24) is provided with two guide wheels. The cover body (13) is provided with a limit slide groove (22) at a position corresponding to the limit wheel group (24) along the length direction. The guide wheel of the limit wheel group (24) is located inside the limit slide groove (22).

4. The borehole water level measuring device according to claim 1, characterized in that: A driving rod (25) is provided on the side of the limiting guide rod (10), one end of the driving rod (25) is plug-connected to the driving plug cylinder (17), the other end of the driving rod (25) is fixedly connected to a driving tractor (26), and the driving tractor (26) is slidably connected to the limiting guide rod (10).

5. The borehole water level measuring device according to claim 1, characterized in that: A protective ring (27) is buckled inside the positioning hole (8), and the inner side of the protective ring (27) is arranged in an arc shape.

6. The borehole water level measuring device according to claim 1, characterized in that: The winding frame assembly (2) comprises a rotating shaft (28), bearings (29) are provided at both ends of the rotating shaft (28), a limit baffle (30) is fixedly connected to the position of the rotating shaft (28) near the end, a winding plate (31) is fixedly connected to one side of the two limit baffles (30) that are mutually approaching, a plurality of support plates (32) are fixedly connected to the outer side of the rotating shaft (28) and located between the two limit baffles (30), and the inner side of the winding plates (31) is fixedly connected to the support plates (32).

7. The borehole water level measuring device according to claim 6, characterized in that: The support frame group (1) comprises a mounting frame (33), the tops of both sides of the mounting frame (33) are fixedly connected to a vertical frame (34), the upper end of the vertical frame (34) is fixedly connected to a ring frame (36), the bearing (29) is located inside the ring frame (36), the end of the guide frame group (3) is fixedly connected to the ring frame (36) at the same end, and a stabilizing frame (35) is provided at the upper end of the mounting frame (33) and at positions on both sides of the vertical frame (34), the upper end of the stabilizing frame (35) is fixedly connected to the vertical frame (34), and the lower end of the stabilizing frame (35) is fixedly connected to the mounting frame (33).

8. The borehole water level measuring device according to claim 7, characterized in that: A protective frame (37) is provided above the mounting frame (33), the lower end of the protective frame (37) is fixedly connected to the ring frame (36) at the through end, and the top of the protective frame (37) is fixedly connected to a handle (38).

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