Underground water level measuring device

Abstract

The utility model relates to an underground water level measuring device. A side plate and a mounting plate; the side plate is installed on the top face of the bottom plate through bolts and is close to the left end of the bottom plate. According to the underground water level measuring device, by arranging the limiting assembly, when the measuring device needs to be moved after water level measurement is finished, a limiting rod in the limiting assembly is inserted into a limiting hole formed in the left side of a take-up wheel, so that the take-up wheel can be rapidly fixed, and the take-up wheel can be effectively prevented from rotating in the moving process; the water level sensor fixed at the other end of the connecting rope shakes or collides, so that the water level sensor is damaged; the scales are arranged on the outer surface of the connecting rope, when a water level sensor is matched to measure the water level, the water level can be observed through the scales, the water level measurement precision can be effectively improved through the scales and measurement data of the water level sensor, and the problem of errors of measurement results is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of water level measurement, in particular to an underground water level measuring device. Background Art

[0002] Groundwater level measurement has extremely broad significance and role in geological exploration, mining, civil construction and other fields. In recent years, with the continuous development of the construction field to the underground, pile foundation projects and deep and large foundation pits have continued to appear, and it is necessary to have a good grasp of the groundwater pressure that affects pile foundation projects and foundation pit excavation. The more common water level measurement devices include indicating instruments, cables, and water level sensors fixed at the ends of the cables. When in use, the water level sensor is usually passed through the cable along the water level hole, and the water surface position is judged according to the indicating instrument and the scale on the cable is read to measure the groundwater level.

[0003] For example, a Chinese utility model (Announcement No.: CN219620580U) discloses a water level measuring device, whose technical solution is as follows: comprising a spool, a cable is wound around the spool, one end of the cable is fixedly connected to the spool, a water sensor is fixedly connected to the other end of the spool, a support plate is fixedly connected to the lower end of the cable, a pulley for providing guidance for the cable is provided above the support plate, the axis of the pulley is parallel to the upper end surface of the support plate, two pulleys are staggered up and down, a gap is left between the two pulleys for the cable to pass through, and a connecting mechanism for adjusting the position of the pulley is provided between the support plate and the pulley; the beneficial effect brought about by adopting the above technical solution is to protect the cable and at the same time improve the service life of the cable;

[0004] The applicant has found that in the above technical solution, when the water level measuring device is moved, the spool is not limited, so the spool rotates when the water level measuring device is moved, causing the water level sensor connected to the other end of the cable to shake, and may also cause the water level sensor to collide. The water level sensor contains some relatively sophisticated electronic components, and a collision may cause the water level sensor to malfunction and fail to operate normally.

[0005] Therefore, we propose a groundwater level measuring device to solve the above problems. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides an underground water level measuring device, which has the advantage of being able to be conveniently fixed by an absolute take-up reel, thereby solving the problem of damage to the water level sensor caused by collision when the measuring device is moving because the take-up reel is not fixed.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a groundwater level measuring device comprises a bottom plate; a side plate and a mounting plate;

[0008] The side plate is mounted on the top surface of the bottom plate near its left end by bolts;

[0009] The mounting plate is fixed to the top surface of the bottom plate and close to its right end;

[0010] The right end of the side plate is rotatably connected to a rotating shaft that penetrates the mounting plate and is rotatably connected to the mounting plate through a bearing;

[0011] Two take-up wheels are fixed on the outer surface of the rotating shaft;

[0012] A take-up disk is fixed between the two take-up wheels;

[0013] A hand wheel is fixed to the right end of the rotating shaft to drive the rotating shaft to rotate;

[0014] A connecting rope is wound and fixed on the outer surface of the take-up drum, and a scale mark for observing the sinking depth is provided on the connecting rope;

[0015] A water level sensor is fixed to one end of the connecting rope away from the take-up reel;

[0016] The side plate is provided with a limit assembly;

[0017] The limiting assembly includes a limiting rod, a handle, a spring and a retaining ring. The limiting rod is slidably connected to the side plate, the retaining ring is fixed to the outer surface of the limiting rod, the handle is fixed to the left end of the limiting rod, and the left end of the retaining ring is fixed to the right end of the spring.

[0018] Furthermore, the left end of the spring is fixed to the right end of the side plate, and the spring is sleeved with the limiting rod.

[0019] Furthermore, a sliding hole connected to the right end of the side plate is opened at the left end, and the sliding hole is slidably connected to the limiting rod. The left end of the left take-up wheel is opened with limiting holes distributed in a ring shape, and the right end of the limiting rod is located inside the limiting hole and is clamped therein.

[0020] Furthermore, the upper surface of the bottom plate is provided with a through hole which penetrates and is connected to the lower surface thereof and is used for the connection rope to pass through.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] 1. The groundwater level measuring device is provided with a limit assembly. When the measuring device needs to be moved after the water level measurement is completed, the limit rod in the limit assembly is inserted into the limit hole provided on the left side of the take-up wheel, so that the take-up wheel can be quickly fixed. This can effectively prevent the take-up wheel from rotating during the movement, causing the connecting rope to slip out, and further causing the water level sensor fixed at the other end of the connecting rope to shake or collide, causing damage to the water level sensor.

[0023] 2. The groundwater level measuring device sets a scale on the outer surface of the connecting rope. When the water level is measured with a water level sensor, the water level can also be observed through the scale. The measurement data of the scale and the water level sensor can effectively improve the accuracy of water level measurement and avoid the problem of error in measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the left end of the utility model;

[0026] Figure 3 It is a schematic diagram of the structure enlarged at point A of the utility model.

[0027] In the figure: 1. bottom plate; 2. side plate; 3. mounting plate; 4. rotating shaft; 5. take-up wheel; 6. take-up drum; 7. hand wheel; 8. connecting rope; 9. water level sensor; 10. limit rod; 11. handle; 12. spring; 13. retaining ring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1 and Figure 2, a groundwater level measuring device in this embodiment includes a bottom plate 1; a side plate 2 and a mounting plate 3; the side plate 2 is mounted on the top surface of the bottom plate 1 and close to its left end by bolts; the mounting plate 3 is fixed to the top surface of the bottom plate 1 and close to its right end; the right end of the side plate 2 is rotatably connected to a rotating shaft 4 that penetrates the mounting plate 3 and is rotatably connected to it through a bearing; two take-up wheels 5 are fixed to the outer surface of the rotating shaft 4; a take-up drum 6 is fixed between the two take-up wheels 5; a hand wheel 7 for driving the take-up drum 6 to rotate is fixed to the right end of the rotating shaft 4; a connecting rope 8 is wound and fixed on the outer surface of the take-up drum 6, and a scale mark for observing the sinking depth is provided on the connecting rope 8; a water level sensor 9 is fixed to the end of the connecting rope 8 away from the take-up drum 6; a limit assembly is provided on the side plate 2.

[0030] In this embodiment, by setting a limit assembly, the take-up wheel 5 can be conveniently fixed when the measuring device needs to be transported, thereby preventing the take-up wheel 5 from rotating during movement, causing the water level sensor 9 to shake and cause damage to the water level sensor 9.

[0031] A through hole is provided through the upper surface of the bottom plate 1 and connected to the lower surface thereof for the connection rope 8 to pass through.

[0032] By setting a scale on the outer surface of the connecting rope 8, the water level can also be observed through the scale when measuring the water level in combination with the water level sensor 9. The measurement data of the scale and the water level sensor 9 can effectively improve the accuracy of water level measurement and avoid the problem of errors in measurement results.

[0033] Among them, the specific model of the water level sensor 9 can be RR1840 sensor.

[0034] See also Figure 3 In order to fix the water level sensor 9, the limit assembly in this embodiment includes a limit rod 10, a handle 11, a spring 12 and a retaining ring 13. The limit rod 10 is slidably connected to the side plate 2, the ring 13 is fixed to the outer surface of the limit rod 10, the handle 11 is fixed to the left end of the limit rod 10, and the left end of the retaining ring 13 is fixed to the right end of the spring 12.

[0035] In this embodiment, when it is necessary to fix the length of the connecting rope 8 fixed to the water level sensor 9, first, pull the handle 11 to the left end to further fit the top surface of the water level sensor 9 with the bottom surface of the base plate 1, and then loosen the handle 11 to drive the limit rod 10 to be inserted into the limit hole at the left end of the take-up wheel 5 to fix the take-up wheel 5, so as to avoid the problem of damage to the water level sensor 9 caused by shaking or collision when transporting the measuring device.

[0036] The left end of the spring 12 is fixed to the right end of the side plate 2, the spring 12 is socketed with the limit rod 10, the left end of the side plate 2 is provided with a sliding hole connected to its right end, the sliding hole is slidably connected with the limit rod 10, the left end of the left take-up wheel 5 is provided with limiting holes distributed in a ring shape, the right end of the limit rod 10 is located inside the limiting hole and is clamped therein.

[0037] By setting the limit assembly as mentioned above, when the water level measurement is completed and the measuring device needs to be moved, the limit rod 10 in the limit assembly is inserted into the limit hole opened on the left side of the take-up wheel 5, so that the take-up wheel 5 can be quickly fixed, which can effectively prevent the take-up wheel 5 from rotating during the movement, causing the connecting rope 8 to slip out, and then causing the water level sensor 9 fixed at the other end of the connecting rope 8 to shake or collide, causing the water level sensor 9 to be damaged.

[0038] The working principle of the above embodiment is:

[0039] When it is necessary to measure the groundwater level, first place the base plate 1 to a suitable position, then pull the handle 11 to the left end with one hand, the handle 11 drives the limit rod 10 to move to the left end, and in the process of the limit rod 10 moving to the left end, it drives the retaining ring 13 fixed on the outer surface of the limit rod 10 to move to the left, and the retaining ring 13 further compresses the spring 12, so that the spring 12 is compressed and deformed, and further by turning the hand wheel 7, the hand wheel 7 drives the rotating shaft 4 to rotate, and in the process of the rotation of the rotating shaft 4, it drives the take-up wheel 5 fixed on the outer surface of the rotating shaft 4 to rotate, so that the connecting rope 8 wrapped around the outer surface of the take-up wheel 5 drives the water level sensor 9 to move downward, and drives the water level sensor 9 into the water, so as to measure the water level, and in the measurement process of the water level sensor 9, by observing the scale set on the outer surface of the connecting rope 8, it can also be used to measure the water level. The water level is measured, and by observing the water level data given by the water level sensor 9 and the scale on the connecting rope 8, the measurement accuracy can be effectively improved. When the measurement is completed and the measuring device needs to be transported, first, by turning the hand wheel 7, the take-up wheel 5 is driven to reel in the connecting rope 8, and the water level sensor 9 is further driven to move upward. When the water level sensor 9 moves upward and fits with the bottom surface of the base plate 1, the handle 11 is loosened, and under the elastic action of the spring 12, the retaining ring 13 is driven to move to the right by the elastic force of the spring 12, and the limit rod 10 is further driven to move to the right, so that the limit rod 10 is inserted into the limit hole opened on the take-up drum 6, thereby fixing the take-up drum 5, and avoiding the problem that the water level sensor 9 is damaged due to shaking or collision caused by the connection rope 8 not being tightened when the measuring device is moved.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A groundwater level measuring device, characterized in that: It comprises a bottom plate (1); a side plate (2) and a mounting plate (3); The side plate (2) is mounted on the top surface of the bottom plate (1) near its left end by means of bolts; The mounting plate (3) is fixed on the top surface of the bottom plate (1) and close to its right end; The right end of the side plate (2) is rotatably connected to a rotating shaft (4) penetrating the mounting plate (3) and rotatably connected to the mounting plate (3) via a bearing; Two wire-taking wheels (5) are fixed on the outer surface of the rotating shaft (4); A wire take-up disk (6) is fixed between the two wire take-up wheels (5); A hand wheel (7) is fixed to the right end of the rotating shaft (4) for driving the rotating shaft (4) to rotate; A connecting rope (8) is wound and fixed on the outer surface of the take-up drum (6), and a scale mark for observing the sinking depth is provided on the connecting rope (8); A water level sensor (9) is fixed to one end of the connecting rope (8) away from the take-up drum (6); The side plate (2) is provided with a limit assembly; The limiting assembly comprises a limiting rod (10), a handle (11), a spring (12) and a retaining ring (13); the limiting rod (10) is slidably connected to the side plate (2); the retaining ring (13) is fixed to the outer surface of the limiting rod (10); the handle (11) is fixed to the left end of the limiting rod (10); and the left end of the retaining ring (13) is fixed to the right end of the spring (12).

2. A groundwater level measuring device according to claim 1, characterized in that: The left end of the spring (12) is fixed to the right end of the side plate (2), and the spring (12) is sleeved with the limiting rod (10).

3. The underground water level measuring device according to claim 1, characterized in that: The left end of the side plate (2) is provided with a sliding hole connected to the right end thereof, and the sliding hole is slidably connected to the limiting rod (10). The left end of the left take-up wheel (5) is provided with limiting holes distributed in an annular shape, and the right end of the limiting rod (10) is located inside the limiting hole and is engaged therewith.

4. A groundwater level measuring device according to claim 1, characterized in that: The upper surface of the bottom plate (1) is provided with a through hole which penetrates and is connected to the lower surface thereof and is used for the connection rope (8) to pass through.

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