Deepwater level measuring instrument convenient to adjust for drainage well

Abstract

The utility model relates to the field of water level measuring instruments, in particular to a drainage well deep water level measuring instrument convenient to adjust. The technical problems that in the prior art, the depth of a probe of a water level measuring instrument is generally inconvenient to adjust quickly, and when the measuring instrument needs to be replaced, the measuring instrument is inconvenient to disassemble and replace from a well quickly are solved. According to the technical scheme, the drainage well deep water level measuring instrument convenient to adjust comprises a fixing assembly; the device further comprises a guide assembly, a lifting assembly, an anti-winding assembly, a lifting assembly and a reinforcing assembly. The liquid level in a well can be detected by starting the measuring instrument on the anti-winding assembly, the reinforcing assembly is installed on the lifting assembly, then the reinforcing assembly is installed on the wall in the well, the stability after the fixing assembly and the lifting assembly are installed can be improved, and due to the fact that the anti-winding assembly can be rapidly disassembled and assembled from the lifting assembly, the anti-winding assembly can be rapidly disassembled and assembled from the lifting assembly. The measuring instrument is convenient to replace, and the technical problem is solved.

Description

Technical Field

[0001] The utility model belongs to the field of water level measuring instruments, and in particular relates to a conveniently adjustable drawdown well depth water level measuring instrument. Background Art

[0002] With the rapid development of my country's economy and society, the development and utilization of groundwater resources has increased, and higher requirements have been put forward for groundwater level monitoring. The measurement of the deep water level of the drawdown well is an important part of groundwater monitoring. The traditional water level measurement method usually uses a water level measuring instrument to measure the water level. The existing water level measuring instruments mainly include water level gauges, buoy water level gauges, pressure water level gauges, etc. However, the water level measuring instruments in the prior art are usually not convenient for quickly adjusting the depth of the probe. When the measuring instrument needs to be replaced, it is not convenient to quickly disassemble and replace it from the well, which needs further improvement. Utility Model Content

[0003] In order to overcome the problem that the water level measuring instrument in the prior art is usually not convenient for quickly adjusting the depth of the probe, and when the measuring instrument needs to be replaced, it is not convenient to quickly disassemble and replace it from the well.

[0004] The technical solution of the utility model is: a conveniently adjustable depth water level measuring instrument for a drawdown well, comprising a fixed component; further comprising a guide component, a lifting component, an anti-winding component, a lifting component and a reinforcement component; a guide component for guiding is arranged at the front end of the fixed component; a lifting component for lifting is arranged on the guide component; an anti-winding component for preventing winding is arranged on the lifting component; a lifting component for lifting the lifting component is arranged on the fixed component; and a reinforcement component for reinforcement is arranged on the lifting component.

[0005] Preferably, when in use, the fixing component is installed on the wall inside the well, and then the lifting component is turned on to adjust the height of the lifting component, the anti-winding component is installed on the lifting component, and the measuring instrument on the anti-winding component is turned on to detect the liquid level in the well, the reinforcement component is installed on the lifting component, and then the reinforcement component is installed on the wall inside the well, which can improve the stability of the fixing component and the lifting component after installation. Since the anti-winding component can be quickly disassembled and assembled from the lifting component, it solves the problem that the water level measuring instrument in the prior art is usually not convenient for quickly adjusting the depth of the probe, and when the measuring instrument needs to be replaced, it is not convenient to quickly disassemble and assemble it from the well for replacement.

[0006] Preferably, the fixing assembly includes a mounting plate, a first screw hole and a first threaded column; the mounting plate is divided into two; the front and rear ends of the mounting plate are penetrated by evenly distributed first screw holes; the inner wall of the first screw hole is threadedly installed with a first threaded column, and the mounting plate can be quickly fixed to the wall by passing the first threaded column through the first screw hole from front to back and threading it into the wall.

[0007] Preferably, the guide assembly includes a first fixed plate, a second fixed plate, a guide rail and a slider; the front end of the mounting plate is fixedly connected to two first fixed plates which are symmetrical about the central vertical section of the mounting plate; the front end of the first fixed plate is fixedly connected to the second fixed plate; the front end of the second fixed plate is fixedly connected to the guide rail; a slider is slidably mounted on the outer wall of the guide rail, and the slider can slide along the outer wall of the guide rail, thereby facilitating the adjustment of the height of the lifting assembly.

[0008] Preferably, the lifting assembly includes a third fixed plate, a supporting plate, a second screw hole, a fixed block, an ear plate and a through hole; the front ends of the two sliders are fixedly connected to the third fixed plate; the front end of the third fixed plate is fixedly connected to the supporting plate; the upper and lower ends of the supporting plate are penetrated with evenly distributed second screw holes; the rear end of the third fixed plate is fixedly connected to the fixed block; the upper end of the fixed block is fixedly connected to the ear plate; the upper and lower ends of the ear plate are penetrated with through holes, and when the slider moves up and down, it can drive the third fixed plate to move up and down, thereby facilitating the rapid adjustment of the height of the supporting plate.

[0009] Preferably, the anti-winding component includes a water level measuring instrument probe, a fixing ring, a second threaded column, a carrier, a first groove body, a rotating column, a fourth fixed plate, a water level measuring instrument body and a connecting line; the water level measuring instrument probe is threadedly installed on the inner wall of the second screw hole; the outer wall of the water level measuring instrument probe is fixedly connected to the fixing ring; the lower end face of the fixing ring and the upper end face of the carrier plate are fitted; the second threaded column is threadedly installed on the inner wall of another second screw hole; the upper end of the second threaded column is fixedly connected to the carrier; the first groove body is opened at the upper end of the carrier; the front and rear ends of the inner wall of the first groove body are rotatably installed with evenly distributed rotating columns; the front end of the carrier is fixedly connected to the fourth fixed plate. Fixed plate; the front end of the fourth fixed plate is fixedly connected with a water level measuring instrument body; a connecting wire is fixedly connected to the water level measuring instrument body; the connecting wire is fixedly connected to the water level measuring instrument probe through the first slot body along the outer wall of the lowest rotating column; the water level measuring instrument body is electrically connected to the water level measuring instrument probe through the connecting wire, the second threaded column is manually threaded on the inner wall of the second screw hole, and then the water level measuring instrument probe is threaded on the inner wall of another second screw hole after passing through the first slot body, so that the connecting wire passes through the first slot body and the lowest rotating column, which will avoid the entanglement of the connecting wire itself, and the water level measuring instrument body can be opened for detection using the water level measuring instrument probe.

[0010] Preferably, the lifting assembly includes a U-shaped plate, a second trough, a wire-taking roller, a motor, a support block, a top plate, a camera, a threaded barrel and a wire rope; a U-shaped plate is fixedly connected to the center of the front end of the mounting plate; a second trough is penetrated through the lower end of the U-shaped plate; a wire-taking roller is rotatably installed on the front and rear ends of the inner wall of the U-shaped plate; a motor is fixedly connected to the front end of the U-shaped plate; the rear end of the output shaft of the motor penetrates through the front end of the U-shaped plate and is fixedly connected to the rotating shaft at the front end of the wire-taking roller; a support block is fixedly connected to the upper end of the U-shaped plate; a top plate is fixedly connected to the upper end of the support block; a camera is fixedly connected to the lower end of the top plate; a threaded barrel is penetrated and fixedly connected to the upper and lower ends of the top plate; a wire rope is fixedly connected to the outer wall of the wire-taking roller; the other end of the wire rope is passed through the through hole and is arranged on the ear plate. When the ear plate needs to be lifted, the motor is turned on to rotate the wire-taking roller, so that the wire rope can be wound on the outer wall of the wire-taking roller, so that the ear plate can be lifted upward, thereby quickly lifting the lifting assembly.

[0011] Preferably, the reinforcement assembly includes a third threaded column, a threaded ring, a connecting block, a second bolt, a bearing block, a U-shaped block and a fixing column; the inner wall of the threaded barrel is threadedly installed with the third threaded column; the outer wall of the third threaded column is threadedly installed with the threaded ring; the outer wall of the threaded ring is fixedly connected with two connecting blocks symmetrical about the third threaded column; the front and rear ends of the connecting block are threadedly installed with the second bolt; the upper end of the third threaded column is fixedly connected with the bearing block; the upper end of the bearing block is fixedly connected with the U-shaped block; the inner wall of the U-shaped block is fixedly connected with the fixing column, the third threaded column is threadedly installed on the inner wall of the threaded barrel, and then the threaded ring is threadedly installed on the outer wall of the third threaded column, and the second bolt is passed through the connecting block to fix it in the wall, so as to improve the fixing effect of the top plate. When the device needs to be lifted, the bolt structure fixed to the wall is removed, and then the hook is hung on the fixing column, so that the device can be conveniently lifted upward as a whole, and the device can be conveniently moved and maintained.

[0012] Beneficial effects of the utility model:

[0013] 1. By installing the fixing component on the wall in the well, then opening the lifting component to adjust the height of the lifting component, installing the anti-winding component on the lifting component, opening the measuring instrument on the anti-winding component to detect the liquid level in the well, installing the reinforcement component on the lifting component, and then installing the reinforcement component on the wall in the well, the stability of the fixing component and the lifting component after installation can be improved. Since the anti-winding component can be quickly disassembled and assembled from the lifting component, it is convenient to replace the measuring instrument, which solves the problem that the water level measuring instrument in the prior art is usually not convenient to quickly adjust the depth of the probe, and when the measuring instrument needs to be replaced, it is not convenient to quickly disassemble and replace it from the well;

[0014] 2. The mounting plate can be quickly fixed on the wall by passing the first threaded column through the first screw hole from front to back and threading it into the wall. The slider can slide along the outer wall of the guide rail, so as to facilitate the height adjustment of the lifting assembly. When the slider moves up and down, it can drive the third fixing plate to move up and down, so as to facilitate the quick adjustment of the height of the load-bearing plate.

[0015] 3. Manually thread the second threaded column onto the inner wall of the second screw hole, then thread the water level measuring instrument probe through the first slot and then thread it onto the inner wall of another second screw hole, so that the connecting wire passes through the first slot and the lowest rotating column, which will avoid the entanglement of the connecting wire itself. The water level measuring instrument body can be turned on to detect using the water level measuring instrument probe. When the ear plate needs to be lifted, the motor is turned on to rotate the wire take-up roller, so that the wire rope can be wound on the outer wall of the wire take-up roller, so that the ear plate can be lifted upward, so that the lifting assembly can be quickly lifted;

[0016] 4. By threading the third threaded column on the inner wall of the threaded barrel, and then threading the threaded ring on the outer wall of the third threaded column, and fixing the second bolt through the connecting block to the wall, the fixing effect of the top plate can be improved. When the device needs to be lifted, remove the bolt structure fixed to the wall, and then hang the hook on the fixed column, the device can be easily lifted up as a whole, which is convenient for moving and maintaining the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The three-dimensional structure schematic diagram of a conveniently adjustable drawdown well deep water level measuring instrument of the utility model is shown;

[0018] Figure 2 The three-dimensional structure diagram of the fixing assembly, the guiding assembly and the lifting assembly of a conveniently adjustable drawdown well deep water level measuring instrument of the utility model is shown;

[0019] Figure 3 The three-dimensional structure diagram of the anti-winding component and the lifting component of a conveniently adjustable drawdown well deep water level measuring instrument of the utility model is shown;

[0020] Figure 4 What is shown is a three-dimensional structural schematic diagram of a reinforcement component of a conveniently adjustable drawdown well depth water level measuring instrument of the utility model.

[0021] The marks in the attached drawings are: 1. fixing assembly; 101. mounting plate; 102. first screw hole; 103. first threaded column; 2. guide assembly; 201. first fixing plate; 202. second fixing plate; 203. guide rail; 204. slider; 3. lifting assembly; 301. third fixing plate; 302. bearing plate; 303. second screw hole; 304. fixing block; 305. ear plate; 306. through hole; 4. anti-winding assembly; 401. water level measuring instrument probe; 402. fixing ring; 403. second threaded column; 404. bearing body; 40 5. The first trough body; 406. The rotating column; 407. The fourth fixed plate; 408. The water level measuring instrument body; 409. The connecting line; 5. The lifting assembly; 501. The U-shaped plate; 502. The second trough body; 503. The wire-receiving roller; 504. The motor; 505. The supporting block; 506. The top plate; 507. The camera; 508. The threaded barrel; 509. The wire rope; 6. The reinforcing assembly; 601. The third threaded column; 602. The threaded ring; 603. The connecting block; 604. The second bolt; 605. The bearing block; 606. The U-shaped block; 607. The fixing column. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] See also Figure 1 The utility model provides an embodiment: a conveniently adjustable drawdown well depth water level measuring instrument, comprising a fixing component 1; further comprising a guide component 2, a lifting component 3, an anti-winding component 4, a lifting component 5 and a reinforcement component 6; a guide component 2 for guiding is arranged at the front end of the fixing component 1; a lifting component 3 for lifting is arranged on the guiding component 2; an anti-winding component 4 for anti-winding is arranged on the lifting component 3; a lifting component 5 for lifting the lifting component 3 is arranged on the fixing component 1; a reinforcement component 6 for reinforcement is arranged on the lifting component 5.

[0024] See also Figure 2In this embodiment, the fixing assembly 1 includes a mounting plate 101, a first screw hole 102 and a first threaded column 103; the mounting plate 101 is divided into two; the front and rear ends of the mounting plate 101 are penetrated with uniformly distributed first screw holes 102; the inner wall of the first screw hole 102 is threadedly installed with the first threaded column 103; the guide assembly 2 includes a first fixing plate 201, a second fixing plate 202, a guide rail 203 and a slider 204; the front end of the mounting plate 101 is fixedly connected to two first fixing plates 201 symmetrical about the central vertical section of the mounting plate 101; the front end of the first fixing plate 201 is fixedly connected to the second fixing plate 202; the second fixing plate 202 The front end is fixedly connected with the guide rail 203; the outer wall of the guide rail 203 is slidably mounted with the slider 204; the lifting assembly 3 includes a third fixed plate 301, a bearing plate 302, a second screw hole 303, a fixed block 304, an ear plate 305 and a through hole 306; the front ends of the two sliders 204 are fixedly connected with the third fixed plate 301; the front end of the third fixed plate 301 is fixedly connected with the bearing plate 302; the upper and lower ends of the bearing plate 302 are penetrated with uniformly distributed second screw holes 303; the rear end of the third fixed plate 301 is fixedly connected with the fixing block 304; the upper end of the fixing block 304 is fixedly connected with the ear plate 305; the upper and lower ends of the ear plate 305 are penetrated with through holes 306.

[0025] See also Figure 3In this embodiment, the anti-winding component 4 includes a water level measuring instrument probe 401, a fixing ring 402, a second threaded column 403, a carrier 404, a first slot 405, a rotating column 406, a fourth fixing plate 407, a water level measuring instrument body 408 and a connecting line 409; the water level measuring instrument probe 401 is threadedly installed on the inner wall of the second screw hole 303; the outer wall of the water level measuring instrument probe 401 is fixedly connected to the fixing ring 402; the lower end surface of the fixing ring 402 is in contact with the upper end surface of the carrier plate 302; the inner wall of the other second screw hole 303 is threadedly installed A second threaded column 403 is installed; the upper end of the second threaded column 403 is fixedly connected to a carrier 404; a first slot 405 is opened at the upper end of the carrier 404; the front and rear ends of the inner wall of the first slot 405 are rotatably mounted with evenly distributed rotating columns 406; the front end of the carrier 404 is fixedly connected to a fourth fixing plate 407; the front end of the fourth fixing plate 407 is fixedly connected to a water level measuring instrument body 408; a connecting line 409 is fixedly connected to the water level measuring instrument body 408; the connecting line 409 passes through the first slot 405 and is fixed along the outer wall of the lowest rotating column 406 The water level measuring instrument body 408 is electrically connected to the water level measuring instrument probe 401 through a connecting line 409; the lifting assembly 5 includes a U-shaped plate 501, a second trough 502, a take-up roller 503, a motor 504, a support block 505, a top plate 506, a camera 507, a threaded cylinder 508 and a wire rope 509; the U-shaped plate 501 is fixedly connected to the front center of the mounting plate 101; the lower end of the U-shaped plate 501 is penetrated by a second trough 502; the take-up roller 503 is rotatably installed at the front and rear ends of the inner wall of the U-shaped plate 501 03; the front end of the U-shaped plate 501 is fixedly connected to a motor 504; the rear end of the output shaft of the motor 504 passes through the front end of the U-shaped plate 501 and is fixedly connected to the rotating shaft at the front end of the take-up roller 503; the upper end of the U-shaped plate 501 is fixedly connected to a support block 505; the upper end of the support block 505 is fixedly connected to a top plate 506; the lower end of the top plate 506 is fixedly connected to a camera 507; the upper and lower ends of the top plate 506 are fixedly connected to a threaded tube 508; the outer wall of the take-up roller 503 is fixedly connected to a wire rope 509; the other end of the wire rope 509 passes through the through hole 306 and is fastened to the ear plate 305.

[0026] See also Figure 4In this embodiment, the reinforcement component 6 includes a third threaded column 601, a threaded ring 602, a connecting block 603, a second bolt 604, a bearing block 605, a U-shaped block 606 and a fixing column 607; the inner wall of the threaded cylinder 508 is threadedly installed with the third threaded column 601; the outer wall of the third threaded column 601 is threadedly installed with a threaded ring 602; the outer wall of the threaded ring 602 is fixedly connected with two connecting blocks 603 symmetrical about the third threaded column 601; the front and rear ends of the connecting block 603 are threadedly installed with the second bolt 604; the upper end of the third threaded column 601 is fixedly connected to the bearing block 605; the upper end of the bearing block 605 is fixedly connected to the U-shaped block 606; the inner wall of the U-shaped block 606 is fixedly connected to the fixing column 607.

[0027] When working, first, the first threaded column 103 is threadedly installed in the wall through the first screw hole 102 from front to back, and the mounting plate 101 is quickly fixed on the wall. When the ear plate 305 needs to be lifted, the motor 504 is turned on to rotate the wire take-up roller 503, so that the wire rope 509 can be rolled up on the outer wall of the wire take-up roller 503, and the ear plate 305 can be lifted upward, so that the lifting assembly 3 can be quickly lifted;

[0028] Manually thread the second threaded column 403 onto the inner wall of the second screw hole 303, then thread the water level measuring instrument probe 401 through the first slot 405 and then thread it onto the inner wall of another second screw hole 303, so that the connecting wire 409 passes through the first slot 405 and the bottom rotating column 406, thus avoiding the entanglement of the connecting wire 409 itself. The water level measuring instrument body 408 can be opened to detect using the water level measuring instrument probe 401;

[0029] When in use, the third threaded column 601 is threadedly installed on the inner wall of the threaded tube 508, and then the threaded ring 602 is threadedly installed on the outer wall of the third threaded column 601, and the second bolt 604 is passed through the connecting block 603 and fixed in the wall, so as to improve the fixing effect of the top plate 506. When the device needs to be lifted, the bolt structure fixed to the wall is removed, and then the hook is hung on the fixing column 607, so that the device can be easily lifted up as a whole, and the device can be moved and maintained conveniently.

[0030] Through the above steps, when in use, the fixing component 1 is installed on the wall inside the well, and then the lifting component 5 is turned on to adjust the height of the lifting component 3, the anti-winding component 4 is installed on the lifting component 3, and the measuring instrument on the anti-winding component 4 is turned on to detect the liquid level in the well, and the reinforcement component 6 is installed on the lifting component 5, and then the reinforcement component 6 is installed on the wall inside the well. The stability of the fixing component 1 and the lifting component 5 after installation can be improved. Since the anti-winding component 4 can be quickly disassembled and assembled from the lifting component 3, the problem that the water level measuring instrument in the prior art is usually not convenient for quickly adjusting the depth of the probe, and when the measuring instrument needs to be replaced, it is not convenient to quickly disassemble and assemble it from the well for replacement is solved.

[0031] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A conveniently adjustable drawdown well depth water level measuring instrument, comprising a fixing assembly (1); characterized in that: The invention also comprises a guide component (2), a lifting component (3), an anti-winding component (4), a lifting component (5) and a reinforcement component (6); the front end of the fixed component (1) is provided with a guide component (2) for guiding; the guide component (2) is provided with a lifting component (3) for lifting; the lifting component (3) is provided with an anti-winding component (4) for preventing winding; the fixed component (1) is provided with a lifting component (5) for lifting the lifting component (3); and the lifting component (5) is provided with a reinforcement component (6) for reinforcement.

2. The conveniently adjustable drawdown well depth water level measuring instrument according to claim 1 is characterized in that: The fixing assembly (1) comprises a mounting plate (101), a first screw hole (102) and a first threaded column (103); the mounting plate (101) is divided into two; the front and rear ends of the mounting plate (101) are penetrated by evenly distributed first screw holes (102); the inner wall of the first screw hole (102) is threadedly mounted with a first threaded column (103).

3. The conveniently adjustable drawdown well depth water level measuring instrument according to claim 2 is characterized in that: The guide assembly (2) comprises a first fixed plate (201), a second fixed plate (202), a guide rail (203) and a slider (204); the front end of the mounting plate (101) is fixedly connected to two first fixed plates (201) symmetrical about the central vertical section of the mounting plate (101); the front end of the first fixed plate (201) is fixedly connected to the second fixed plate (202); the front end of the second fixed plate (202) is fixedly connected to the guide rail (203); and the outer wall of the guide rail (203) is slidably mounted with a slider (204).

4. The conveniently adjustable drawdown well depth water level measuring instrument according to claim 3 is characterized by: The lifting assembly (3) comprises a third fixing plate (301), a bearing plate (302), a second screw hole (303), a fixing block (304), an ear plate (305) and a through hole (306); the front ends of the two sliding blocks (204) are fixedly connected to the third fixing plate (301); the front end of the third fixing plate (301) is fixedly connected to the bearing plate (302); the upper and lower ends of the bearing plate (302) are penetrated with uniformly distributed second screw holes (303); the rear end of the third fixing plate (301) is fixedly connected to the fixing block (304); the upper end of the fixing block (304) is fixedly connected to the ear plate (305); the upper and lower ends of the ear plate (305) are penetrated with through holes (306).

5. The conveniently adjustable drawdown well depth water level measuring instrument according to claim 4 is characterized in that: The anti-winding component (4) comprises a water level measuring instrument probe (401), a fixing ring (402), a second threaded column (403), a bearing body (404), a first slot body (405), a rotating column (406), a fourth fixing plate (407), a water level measuring instrument body (408) and a connecting line (409); the water level measuring instrument probe (401) is threadedly mounted on the inner wall of the second screw hole (303); the fixing ring (402) is fixedly connected to the outer wall of the water level measuring instrument probe (401); the lower end surface of the fixing ring (402) is fitted with the upper end surface of the bearing plate (302); the second threaded column (403) is threadedly mounted on the inner wall of another second screw hole (303); the upper end of the second threaded column (403) is fixedly connected to the bearing body (304); A carrier (404); a first slot (405) is provided at the upper end of the carrier (404); evenly distributed rotating columns (406) are rotatably mounted at the front and rear ends of the inner wall of the first slot (405); a fourth fixing plate (407) is fixedly connected to the front end of the carrier (404); a water level measuring instrument body (408) is fixedly connected to the front end of the fourth fixing plate (407); a connecting line (409) is fixedly connected to the water level measuring instrument body (408); the connecting line (409) passes through the first slot (405) and is fixedly connected to the water level measuring instrument probe (401) along the outer wall of the lowest rotating column (406); the water level measuring instrument body (408) is electrically connected to the water level measuring instrument probe (401) via the connecting line (409).

6. The conveniently adjustable drawdown well depth water level measuring instrument according to claim 2, characterized in that: The lifting assembly (5) comprises a U-shaped plate (501), a second trough (502), a wire take-up roller (503), a motor (504), a support block (505), a top plate (506), a camera (507), a threaded cylinder (508) and a wire rope (509); the U-shaped plate (501) is fixedly connected to the center of the front end of the mounting plate (101); the second trough (502) is penetrated through the lower end of the U-shaped plate (501); the wire take-up roller (503) is rotatably installed at the front and rear ends of the inner wall of the U-shaped plate (501); the motor (504) is fixedly connected to the front end of the U-shaped plate (501); the motor (504) The rear end of the output shaft of the machine (504) passes through the front end of the U-shaped plate (501) and is fixedly connected to the rotating shaft at the front end of the take-up roller (503); the upper end of the U-shaped plate (501) is fixedly connected to a support block (505); the upper end of the support block (505) is fixedly connected to a top plate (506); the lower end of the top plate (506) is fixedly connected to a camera (507); the upper and lower ends of the top plate (506) are fixedly connected to threaded cylinders (508); the outer wall of the take-up roller (503) is fixedly connected to a wire rope (509); the other end of the wire rope (509) passes through the through hole (306) and is fastened to the ear plate (305).

7. The conveniently adjustable drawdown well depth water level measuring instrument according to claim 6, characterized in that: The reinforcement assembly (6) comprises a third threaded column (601), a threaded ring (602), a connecting block (603), a second bolt (604), a bearing block (605), a U-shaped block (606) and a fixing column (607); the inner wall of the threaded cylinder (508) is threadedly mounted with the third threaded column (601); the outer wall of the third threaded column (601) is threadedly mounted with the threaded ring (602); the outer wall of the threaded ring (602) is fixedly connected with two connecting blocks (603) symmetrical with respect to the third threaded column (601); the front and rear ends of the connecting block (603) are threadedly mounted with the second bolt (604); the upper end of the third threaded column (601) is fixedly connected with the bearing block (605); the upper end of the bearing block (605) is fixedly connected with the U-shaped block (606); the inner wall of the U-shaped block (606) is fixedly connected with the fixing column (607).

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