CN220339467U - Foundation ditch dewatering well water level monitoring instrument - Google Patents

Abstract

A foundation pit dewatering well water level monitoring tool comprises a supporting mechanism and a monitoring mechanism; the supporting mechanism comprises supporting seats, a bottom plate, a transverse box and a sliding component, wherein the two supporting seats are arranged on two sides of the bottom plate and fixedly connected with the bottom plate, a supporting column is fixedly arranged on the top surface of the bottom plate, the transverse box is erected on the top of the two supporting columns, a containing groove is formed in the inner side of the supporting column, and the sliding component is horizontally arranged in the transverse box in a sliding mode; the monitoring mechanism comprises a vertical rod, a sliding block, buoy balls and a range finder, wherein the vertical rod is in vertical sliding connection with the sliding component, third sliding grooves used for the horizontal sliding of the vertical rod are formed in the upper side and the lower side of the horizontal box, the vertical rod slides along the third sliding grooves through the sliding component, fourth sliding grooves are formed in the lower side of the vertical rod, the sliding block is in vertical sliding connection with the fourth sliding grooves, the two buoy balls are fixedly connected with the two sides of the sliding block, the buoy balls slide along the fourth sliding grooves through the sliding block, and the range finder is fixedly connected with the top of the fourth sliding grooves. The utility model has the characteristics of being convenient for accommodating the monitoring mechanism, not limited by environment and convenient for installation and movement.

Description

Foundation ditch dewatering well water level monitoring instrument

Technical Field

The utility model relates to the technical field of water level monitoring, in particular to a foundation pit dewatering well water level monitoring tool.

Background

The foundation pit dewatering is that when the foundation pit is excavated, the groundwater level is higher than the bottom surface of the excavation, the groundwater can be continuously infiltrated into the pit, so that the foundation pit can be constructed under the dry condition, the side slope instability, foundation sand flowing, pit bottom uplift, pit bottom piping and foundation bearing capacity reduction are prevented, the water level monitoring of a foundation pit dewatering well is very important, the accuracy of the traditional method is low, a large amount of manual operation and experience are relied on, the operation efficiency is low, the influence on the measurement accuracy is large, and in the operation, measurement staff generally need to stand at an observation wellhead to perform measurement, and a certain potential safety hazard exists. For observation of foundation pit dewatering wells, it is also very important to have more accurate observation data, and if the foundation pit is close to the surrounding buildings of the project, if the water level change can be accurately recorded, tracking analysis is also very important to the construction safety of the foundation pit.

The patent of the grant bulletin number CN216050172U discloses a foundation pit dewatering well water level monitoring tool, including paying out machine constructs and guiding mechanism, central through-hole has been seted up to well lid central point put, paying out machine constructs including cylinder, first support and control box, the center pin of cylinder passes through motor drive and rotates, guiding mechanism includes guide cylinder and second support, a plurality of pressure strain gauges are installed to the inner wall week side of guide cylinder, the one end of haulage rope is walked around the guide cylinder and passes central through-hole and is connected with the kickboard top in the foundation pit dewatering well, be provided with the encoder that is used for measuring the center pin rotation number of turns of guide cylinder on the second support. But this patent can not in time accomodate the damage that can cause the kickboard to the kickboard when not using and then influence the monitoring result, and this patent only can set up and monitor the work on the same working face of topography simultaneously, and the monitoring is restricted by the relief environment.

Disclosure of Invention

The utility model aims to solve the problems that a monitoring device is inconvenient to store and is easy to damage and monitoring is limited by the geographical environment, and provides a foundation pit dewatering well water level monitoring tool which is convenient for storing a monitoring mechanism, free from environmental limitation and convenient to install and move.

The utility model provides a foundation ditch dewatering well water level monitoring instrument which characterized in that: comprises a supporting mechanism and a monitoring mechanism;

the supporting mechanism comprises supporting seats, a bottom plate, a transverse box and a sliding component, wherein the two supporting seats are fixedly arranged on two sides of the bottom plate, supporting legs for adjusting the level of the supporting seats are arranged at two ends of the supporting seats, supporting columns are fixedly arranged on the top surface of the bottom plate, the transverse box is erected on the tops of the two supporting columns, a storage groove for storing and protecting the monitoring mechanism is formed in the inner side of one supporting column, and the sliding component is horizontally arranged in the transverse box in a sliding mode;

the monitoring mechanism comprises a vertical rod, a sliding block, buoy balls and a range finder, wherein the vertical rod is in vertical sliding connection with the sliding component, third sliding grooves used for the horizontal sliding of the vertical rod are formed in the upper side and the lower side of the horizontal box, the vertical rod slides along the third sliding grooves through the sliding component, fourth sliding grooves are formed in the lower side of the vertical rod, the sliding block is in vertical sliding connection with the fourth sliding grooves, the two buoy balls are fixedly connected with the two sides of the sliding block, the buoy balls slide along the fourth sliding grooves through the sliding block, and the range finder is fixedly connected with the top of the fourth sliding grooves.

Further, the extension rod is connected at the supporting seat both ends, and the landing leg is connected with the one end rotation that the extension rod kept away from the supporting seat, and the supporting seat top rotates and is connected with the second hand wheel, and the second hand wheel rotates and drives the extension rod and slide along the supporting seat level.

Further, one side of the extension rod, which is far away from the supporting leg, is fixedly connected with a second rack, a first gear is inserted at the bottom of the second hand wheel, and the second rack is meshed with the first gear.

Further, the landing leg includes first hand wheel, threaded rod and cushion, and the first hand wheel fixed connection of threaded rod one end, threaded rod other end and cushion fixed connection, the one end fixedly connected with sleeve that the second hand wheel was kept away from to the extension rod, and the threaded rod inserts and locates the sleeve and rotate with the sleeve and be connected.

Further, the bottom of the cushion block is provided with an anti-slip pad.

Further, a first chute for limiting the elongation of the extension rod is formed in the top surface of the supporting seat, the top of the extension rod is fixedly connected with a limiting rod, and the limiting rod penetrates through the first chute and horizontally slides along the first chute.

Further, the sliding component comprises a transverse plate, a first motor and a second pulley, four second pulleys are rotationally connected to the two sides of the transverse plate, a sliding rail is arranged on the upper inner wall and the lower inner wall of the transverse box, the transverse plate horizontally slides along the sliding rail through the second pulley, a through hole is formed in the transverse plate, a vertical rod penetrates through the through hole and is in vertical sliding connection with the transverse plate, and the first motor drives the second pulley to rotate.

Further, the top surface of the transverse plate is fixedly provided with a second motor, an output shaft of the second motor is fixedly connected with a second gear, a second sliding groove is formed in one side of the vertical rod, a first rack is arranged in the second sliding groove, and the second gear is meshed with the first rack.

Further, the four corners of the bottom surface of the bottom plate are fixedly provided with first pulleys for moving the supporting seat.

Compared with the prior art, the utility model has the beneficial effects that:

(1) according to the foundation pit dewatering well water level monitoring tool provided by the utility model, the storage groove is formed in the inner side of the support column, so that the buoy ball can be stored in the storage groove when not in use, the buoy ball is protected, and the buoy ball is prevented from being damaged.

(2) According to the foundation pit dewatering well water level monitoring tool provided by the utility model, the adjustable supporting legs are arranged, the ground surface is uneven, and the lengths of the supporting legs extending out of the supporting seats are adjusted to enable the four supporting legs to be in abutting connection with the working surface, so that the device is stably supported on the working surface, the monitoring work is smoothly carried out, and the construction period is not delayed.

(3) According to the foundation pit dewatering well water level monitoring tool provided by the utility model, the anti-slip pad is arranged on the bottom surface of the cushion block, so that the supporting legs can be stably supported on the working surface.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

fig. 1 is a schematic diagram of the overall structure of the foundation pit dewatering well water level monitoring tool in the utility model.

Fig. 2 is a sectional view showing the internal structure of the foundation pit dewatering well water level monitoring tool in the present utility model.

Fig. 3 is a schematic view of a specific structure of the support base in the present utility model.

Fig. 4 is a schematic view showing a specific structure of the extension rod in the present utility model.

Fig. 5 is a schematic view showing a specific structure of the sliding assembly in the present utility model.

In the figure: 1. a support base; 101. a first chute; 2. a bottom plate; 3. a support column; 4. a transverse box; 5. a vertical rod; 6. a second chute; 601. a first rack; 7. a third chute; 8. a support leg; 801. a first hand wheel; 802. a threaded rod; 803. a cushion block; 9. an extension rod; 901. a second rack; 902. a sleeve; 903. a limit rod; 10. the second hand wheel; 1001. a first gear; 11. a slide block; 12. a float ball; 13. a first pulley; 14. a fourth chute; 15. a storage groove; 16. a sliding assembly; 1601. a cross plate; 1602. a first motor; 1603. a second pulley; 1604. a through hole; 17. a second motor; 1701. a second gear; 18. a range finder; 19. a slide rail.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 and 2, the foundation pit dewatering well water level monitoring tool comprises a supporting mechanism and a monitoring mechanism. The supporting mechanism includes supporting seat 1, bottom plate 2, horizontal case 4 and slip subassembly 16, two supporting seat 1 are fixed to be set up in the both sides of bottom plate 2, the both ends of supporting seat 1 are provided with the landing leg 8 that is used for adjusting supporting seat 1 horizontally, the four corners of bottom plate 2 bottom surface is all fixed to be provided with the first pulley 13 that is used for removing supporting seat 1, the fixed support column 3 that is provided with in bottom plate 2 top surface, horizontal case 4 erects the top with two support columns 3, one of them support column 3 inboard is equipped with the storage tank 15 that is used for accomodating protection monitoring mechanism, slip subassembly 16 horizontal slip sets up in horizontal case 4 inside, the both sides welding of concretely speaking is two supporting seats 1 and bottom plate 2, the front and back both ends of supporting seat 1 are provided with landing leg 8 and are used for adjusting supporting seat 1 level, the welding of bottom surface four first pulleys 13 of bottom surface four corners of bottom plate 2, the welding of top surface both sides of bottom plate 2 has two support columns 3, the central point of bottom plate 2 puts and has seted up the perforation that supplies monitoring mechanism to pass, the top of horizontal case 4 and the top welding of horizontal case 4 and support column 3, the inboard welding of 3 has storage tank 15 to be used for accomodating protection mechanism, the inside welding of storage tank 15 of bottom surface 15, the inside of storage tank 15 is used for accomodating protection mechanism, the inside of bottom tank 15 and slip subassembly setting up with the slip subassembly horizontal case 16.

In the utility model, the storage groove 15 is arranged on the inner side of the support column 3, so that the buoy ball 12 can be stored in the storage groove 15 when not in use, thereby protecting the buoy ball 12 and preventing the buoy ball 12 from being damaged; by arranging the adjustable supporting legs 8, the bottom plate 2 can be arranged on the working surfaces of different terrains, so that the monitoring work can be smoothly carried out, and the construction period is not delayed.

The monitoring mechanism comprises a vertical rod 5, a sliding block 11, buoy balls 12 and a range finder 18, wherein the vertical rod 5 is vertically and slidably connected with a sliding component 16, a third sliding groove 7 for horizontally sliding the vertical rod 5 is formed in the upper side and the lower side of a transverse box 4, the vertical rod 5 slides along the third sliding groove 7 through the sliding component 16, a fourth sliding groove 14 is formed in the lower side of the vertical rod 5, the sliding block 11 is vertically and slidably connected with the fourth sliding groove 14, the two buoy balls 12 are fixedly connected with the two sides of the sliding block 11, the buoy balls 12 slide along the fourth sliding groove 14 through the sliding block 11, the range finder 18 is fixedly connected with the top of the fourth sliding groove 14, the concrete characteristics are that the vertical rod 5 penetrates through the sliding component 16 and vertically slides, the upper side and the lower side of the transverse box 4 are respectively provided with the third sliding groove 7, the montant 5 runs through horizontal case 4 and slip subassembly 16, slip subassembly 16 horizontal slip in horizontal case 4, montant 5 has seted up fourth spout 14 along third spout 7 horizontal slip along with slip subassembly 16 on the lower half lateral wall of montant 5, slider 11 sets up in fourth spout 14 inside and along the vertical slip of fourth spout 14, the both sides of slider 11 are equipped with connecting portion, connecting portion run through fourth spout 14 and buoy ball 12 are connected and fixed, distancer 18 is connected and fixed through the base with the top of fourth spout 14, when montant 5 inserts precipitation well bottom, buoy ball 12 receives buoyancy influence upwards to move, distancer 18 begins work survey buoy ball 12 and the distance at fourth spout 14 top and then confirm precipitation well water level.

The extension rod 9 is connected to the supporting seat 1 both ends, the landing leg 8 is connected with the one end rotation that the supporting seat 1 was kept away from to extension rod 9, the supporting seat 1 top rotates and is connected with second hand wheel 10, second hand wheel 10 rotates and drives extension rod 9 along supporting seat 1 horizontal slip, concretely speaking is supporting seat 1 is cavity structure and both ends are inserted and are equipped with extension rod 9, landing leg 8 is inserted and are located the one end that the supporting seat 1 was kept away from to extension rod 9 and with the vertical rotation of extension rod 9, the top surface central point of supporting seat 1 puts and inserts and be equipped with second hand wheel 10, extension rod 9 rotates along supporting seat 1 horizontal slip through second hand wheel 10.

As shown in fig. 3 and 4, a second rack 901 is fixedly connected to one side of the extension rod 9 away from the supporting leg 8, a first gear 1001 is inserted at the bottom of the second gear 10, the second rack 901 is meshed with the first gear 1001, in particular, the second rack 901 is welded at the part of the extension rod 9 inserted into the supporting seat 1, the first gear 1001 is inserted at the bottom of the second hand wheel 10 and fixed, the second gear 10 is rotated, the first gear 1001 rotates along with the second hand wheel 10, the second rack 901 is meshed with the first gear 1001, the second rack 901 slides along with the rotation of the first gear 1001, and the extension rod 9 slides horizontally along the supporting seat 1; the landing leg 8 includes first hand wheel 801, threaded rod 802 and cushion 803, threaded rod 802 one end first hand wheel 801 fixed connection, threaded rod 802 other end and cushion 803 fixed connection, the one end fixedly connected with sleeve 902 that second hand wheel 10 was kept away from to extension rod 9, threaded rod 802 inserts and locates sleeve 902 and rotate with sleeve 902 and be connected, cushion 803 bottom is provided with the slipmat, concretely speaking is threaded rod 802 top and first hand wheel 801 welding, threaded rod 802's bottom and cushion 803 welding, extension rod 9 is kept away from the one end welding of second hand wheel 10 has sleeve 902, sleeve 902 embeds with threaded rod 802 assorted screw thread, threaded rod 802 inserts and locates sleeve 902 inside and is connected with sleeve 902 rotation, rotate first hand wheel 801, threaded rod 802 rotates along sleeve 902 vertical removal along with first hand wheel 801, cushion 803 carries out vertical removal along with threaded rod 802, the bottom cover of cushion 803 is equipped with the slipmat and is used for stabilizing landing leg 8.

According to the utility model, the adjustable supporting legs 8 are arranged, so that the ground surface is uneven, the lengths of the supporting legs 8 on the supporting seat 1, which extend out, are adjusted to enable the four supporting legs 8 to be in abutting connection with the ground surface, so that the device is stably supported on the ground surface, the monitoring work is smoothly carried out, and the construction period is not delayed; the bottom surface of the cushion 803 is provided with a non-slip mat, so that the support leg 8 can be stably supported on the working surface.

The first sliding grooves 101 for limiting the elongation of the extension rod 9 are formed in the top surface of the supporting seat 1, the limiting rods 903 are fixedly connected to the top of the extension rod 9, the limiting rods 903 penetrate through the first sliding grooves 101 and slide horizontally along the first sliding grooves 101, the first sliding grooves 101 are formed in the two sides of the top surface of the supporting seat 1 and are used for limiting the elongation of the extension rod 9, the limiting rods 903 are welded to the top of the extension rod 9, and when the extension rod 9 slides horizontally, the limiting rods 903 slide horizontally along the first sliding grooves 101 along with the extension rod 9.

As shown in fig. 5, the sliding assembly 16 includes a cross plate 1601, a first motor 1602 and second pulleys 1603, the two sides of the cross plate 1601 are rotatably connected with four second pulleys 1603, the upper and lower inner walls of the cross plate 1601 are provided with sliding rails 19, the cross plate 1601 horizontally slides along the sliding rails 19 through the second pulleys 1603, the cross plate 1601 is provided with a through hole 1604, a vertical rod 5 penetrates through the through hole 1604 and is vertically slidably connected with the cross plate 1601, the first motor 1602 drives the second pulleys 1603 to rotate, the preferred first motor 1602 is a double-headed motor, four sliding rails 19 are fixedly arranged on the upper and lower inner walls of the cross plate 1601, a bayonet is arranged on the cross plate 1601, the first motor 1602 is embedded in the bayonet and is fixed, and four second pulleys 1603 are inserted on the two sides of the cross plate 1601, wherein the two second pulleys 1603 are inserted on the output shafts of the first motor 1601, the four second pulleys 1603 are clamped between the gaps of the upper and lower sliding rails 19 and horizontally slide, the through hole 1604 is arranged in the center of the cross plate 1601, and the vertical rod 5 penetrates through the through hole 1604 and vertically slides between the cross plate 1601.

The top surface of the transverse plate 1601 is fixedly provided with a second motor 17, an output shaft of the second motor 17 is fixedly connected with a second gear 1701, one side of a vertical rod 5 is provided with a second sliding groove 6, a first rack 601 is arranged in the second sliding groove 6, the second gear 1701 is meshed with the first rack 601, the position, close to a through hole 1604, of the top surface of the transverse plate 1601 is provided with the second motor 17, the second motor 17 is fixed with the top surface of the transverse plate 1601 through a motor base, the second motor 17 has a self-locking function, the output shaft of the second motor 17 is provided with a second gear 1701 in an inserted mode, one side, close to the second gear 1701, of the vertical rod 5 is provided with a second sliding groove 6, a first rack 601 is arranged in the second sliding groove 6, the second motor 17 rotates the output shaft, the second gear 1701 rotates along with the output shaft, the first rack 601 vertically slides along with the second rack 1701, and the second sliding groove 6 vertically slides along with the first rack 601, and the vertical rod 5 vertically slides along with the second sliding groove 6.

The working principle of the foundation pit dewatering well water level monitoring tool in the embodiment is as follows:

when monitoring work is carried out, the device is moved to the top of a dewatering well to be monitored, the first hand wheel 801 is rotated, all the four cushion blocks 803 are abutted to the working surface, the device is stably fixed on the working surface, the sliding assembly 16 horizontally slides in the transverse box 4 through the first motor 1602, the vertical rod 5 horizontally slides along with the sliding assembly 16, the buoy ball 12 is moved out of the storage groove 15 to a through hole in the bottom plate 2, the second motor 17 is used for dropping the vertical rod 5, the buoy ball 12 is dropped along with the vertical rod 5 into the dewatering well, the vertical rod 5 is inserted into the bottom of the well, the buoy ball 12 is upwards moved to the water surface under the influence of buoyancy of water, the distance meter 18 works for measuring distance, and then the water level in the dewatering well is determined.

After the monitoring work is finished, the vertical rod 5 is lifted by the second motor 17, the buoy ball 12 is lifted along with the vertical rod 5 until the buoy ball 12 passes through the perforation, the sliding assembly 16 horizontally slides in the transverse box 4 by the first motor 1602, the vertical rod 5 horizontally slides along with the sliding assembly 16, the buoy ball 12 is contained in the containing groove 15, the first hand wheel 801 is rotated, the cushion block 803 is separated from the working surface, the first pulley 13 is contacted with the working surface, and the device is moved to prepare for the next monitoring work.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (9)

1. The utility model provides a foundation ditch dewatering well water level monitoring instrument which characterized in that: comprises a supporting mechanism and a monitoring mechanism;

the supporting mechanism comprises supporting seats (1), a bottom plate (2), a transverse box (4) and sliding components (16), wherein the two supporting seats (1) are fixedly arranged on two sides of the bottom plate (2), supporting legs (8) for adjusting the level of the supporting seats (1) are arranged at two ends of the supporting seats (1), supporting columns (3) are fixedly arranged on the top surface of the bottom plate (2), the transverse box (4) is erected on the tops of the two supporting columns (3), a containing groove (15) for containing and protecting the monitoring mechanism is formed in one inner side of one supporting column (3), and the sliding components (16) are horizontally arranged inside the transverse box (4) in a sliding mode;

the monitoring mechanism comprises a vertical rod (5), a sliding block (11), a buoy ball (12) and a range finder (18), wherein the vertical rod (5) is in vertical sliding connection with a sliding component (16), a third sliding groove (7) for horizontally sliding the vertical rod (5) is formed in the upper side and the lower side of a transverse box (4), the vertical rod (5) slides along the third sliding groove (7) through the sliding component (16), a fourth sliding groove (14) is formed in the lower side of the vertical rod (5), the sliding block (11) is in vertical sliding connection with the fourth sliding groove (14), the buoy ball (12) is fixedly connected with the two sides of the sliding block (11), the buoy ball (12) slides along the fourth sliding groove (14) through the sliding block (11), and the range finder (18) is fixedly connected with the top of the fourth sliding groove (14).

2. The foundation pit dewatering well water level monitoring tool of claim 1, wherein: the support seat is characterized in that extension rods (9) are connected to two ends of the support seat (1), the support legs (8) are connected with one ends of the extension rods (9) away from the support seat (1) in a rotating mode, second hand wheels (10) are connected to the tops of the support seat (1) in a rotating mode, and the second hand wheels (10) rotate to drive the extension rods (9) to horizontally slide along the support seat (1).

3. The foundation pit dewatering well water level monitoring tool of claim 2, wherein: one side of extension rod (9) keeping away from landing leg (8) fixedly connected with second rack (901), first gear (1001) has been inserted to second hand wheel (10) bottom, second rack (901) with first gear (1001) meshing.

4. A foundation pit dewatering well water level monitoring tool according to claim 3, wherein: the landing leg (8) comprises a first hand wheel (801), a threaded rod (802) and a cushion block (803), one end of the threaded rod (802) is fixedly connected with the first hand wheel (801), the other end of the threaded rod (802) is fixedly connected with the cushion block (803), one end of the extension rod (9) away from the second hand wheel (10) is fixedly connected with a sleeve (902), and the threaded rod (802) is inserted into the sleeve (902) and is rotationally connected with the sleeve (902).

5. The foundation pit dewatering well water level monitoring tool of claim 4, wherein: and an anti-slip pad is arranged at the bottom of the cushion block (803).

6. The foundation pit dewatering well water level monitoring tool of claim 2, wherein: the support seat (1) top surface has seted up restriction extension rod (9) elongation's first spout (101), extension rod (9) top fixedly connected with gag lever post (903), gag lever post (903) run through first spout (101) and follow first spout (101) horizontal slip.

7. The foundation pit dewatering well water level monitoring tool of claim 1, wherein: the sliding assembly (16) comprises a transverse plate (1601), a first motor (1602) and a second pulley (1603), four second pulleys (1603) are rotatably connected to two sides of the transverse plate (1601), sliding rails (19) are arranged on the upper inner wall and the lower inner wall of a transverse box (4), the transverse plate (1601) horizontally slides along the sliding rails (19) through the second pulley (1603), a through hole (1604) is formed in the transverse plate (1601), and a vertical rod (5) penetrates through the through hole (1604) and is in vertical sliding connection with the transverse plate (1601), and the first motor (1602) drives the second pulley (1603) to rotate.

8. The foundation pit dewatering well water level monitoring tool of claim 7, wherein: the utility model discloses a motor, including diaphragm (1601), first rack (601) and second rack (601), diaphragm (1601) top surface is fixed to be provided with second motor (17), fixedly connected with second gear (1701) on the output shaft of second motor (17), second spout (6) have been seted up to one side of montant (5), first rack (601) are built-in to second spout (6), second gear (1701) with first rack (601) meshing.

9. The foundation pit dewatering well water level monitoring tool of claim 1, wherein: the four corners of the bottom surface of the bottom plate (2) are fixedly provided with first pulleys (13) for moving the supporting seat (1).