CN111912498A

CN111912498A - Portable water level measuring device is used in hydraulic engineering reservoir management

Info

Publication number: CN111912498A
Application number: CN202010810182.4A
Authority: CN
Inventors: 白银珍
Original assignee: Individual
Current assignee: Quanshi Xiamen Technology Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2020-11-10
Anticipated expiration: 2040-08-13
Also published as: CN111912498B

Abstract

The invention discloses a portable water level measuring device for reservoir management of hydraulic engineering, which comprises a box body, universal wheels, accommodating grooves, copper columns and a splicing pipe, wherein the universal wheels are installed on the lower surface of the box body, the accommodating grooves are formed in the upper surface of the box body, a supporting rod is connected to the upper surface of the box body, a sliding rod is installed inside the supporting rod, a wire accommodating spring is arranged inside the supporting rod, rolling wheels are arranged on the lower surface of the supporting rod, a rubber pad is arranged on the lower end surface of the induction pipe, a waterproof block is installed on the upper end surface of the induction pipe, and the copper columns are installed inside the induction pipe. This portable water level measurement device is used in hydraulic engineering reservoir management is provided with box and bracing piece, and rotation through the bracing piece folds water level measurement device, reduces the whole shared space of water level measurement device to remove water level measurement device through the universal wheel, be convenient for measure the convenience of and increase the transportation to the water level of different positions.

Description

Portable water level measuring device is used in hydraulic engineering reservoir management

Technical Field

The invention relates to the technical field of hydraulic engineering, in particular to a portable water level measuring device for reservoir management of hydraulic engineering.

Background

The reservoir is generally explained as a hydraulic engineering building for storing and regulating flood and water flow, can be used for irrigation, power generation, flood control and fish culture, and is an artificial lake formed by building a barrage at a narrow opening of a mountain ditch or a river, and can play the roles of flood control, water storage irrigation, water supply, power generation, fish culture and the like after the reservoir is built, sometimes a natural lake is also called as a reservoir, the scale of the reservoir is usually divided into small, medium and large sizes according to the size of the reservoir capacity, and the water level of the reservoir needs to be measured in order to ensure that the water level of the reservoir does not exceed the safe height, but the existing reservoir water level measuring device has some defects, such as:

1. for example, a method for monitoring the water level of a reservoir with publication number CN200710067265.3, the reservoir water level is monitored by inserting a pipe wound with an optical cable into water and measuring the temperature of each monitoring point of the optical cable, but the optical cable is soaked in water for a long time and is easily corroded by water, and water remained on the surface of the optical cable is frozen when the temperature of the water surface of the reservoir is low in winter, which causes inaccurate water level measurement, and the optical cable can only be integrally replaced when the optical cable is damaged, which causes increase of maintenance cost and complexity of maintenance process;

2. the existing reservoir water level measuring device is of an integrated structure and is only suitable for a fixed base surface when being installed, once the fall between the base surface and the water surface is too large, the measuring device cannot measure the actual water level, and the water level measuring device does not have good portability due to the integrated structure of the measuring device, so that inconvenience is caused in the actual use and transportation process.

Aiming at the problems, innovative design is urgently needed on the basis of the original reservoir water level measuring device.

Disclosure of Invention

The invention aims to provide a portable water level measuring device for reservoir management of hydraulic engineering, which aims to solve the problems of inaccurate measurement, icing in winter and inconvenience in carrying and transportation in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a portable water level measuring device for water conservancy project reservoir management comprises a box body, universal wheels, an accommodating groove, a copper column and a splicing pipe, wherein the universal wheels are mounted on the lower surface of the box body, the accommodating groove is formed in the upper surface of the box body, a supporting rod is connected to the upper surface of the box body, a sliding rod is mounted inside the supporting rod, a wire accommodating spring is arranged inside the supporting rod, a roller is arranged on the lower surface of the supporting rod, a first gear is connected to the outer surface of the sliding rod, a second gear is connected to the outer surface of the first gear, a power line is wound on the outer surface of the second gear, the other end of the power line is connected with a heating ring, a resistance block is mounted inside the heating ring, an anti-blocking protective plate is mounted on the inner side surface of the heating ring, a flip cover is connected to one end of the, the utility model discloses a splicing pipe, including spliced pipe, splicing pipe, sensing pipe, clamping plate, iron piece, rubber pad, waterproof piece, and the internally mounted of response pipe has the cardboard, the one end that the gyro wheel was installed to the bracing piece is provided with the extension frame, and the internally connected of extension frame has spacing spring to the internally mounted of extension frame has spacing spring, splicing pipe has been placed to the inside of extension frame, and the surface of splicing pipe is provided with the limiting plate, splicing pipe's lower terminal surface is provided with the trip, and splicing pipe's upper end internally mounted has fixed spring to splicing pipe's upper end internally connected has the fixed plate, splicing pipe's inside is provided with the response pipe, and the inside of response pipe is provided with the tablet, the internally connected of response pipe has the electric capacity piece, and the surface of electric.

Preferably, the box body and the support rod form a rotating structure, the support rod and the slide rod form a sliding structure, and the slide rod and the support rod form an elastic structure through a take-up spring.

Preferably, the slide bar is in meshed connection with a first gear, the first gear is in meshed connection with a second gear, and the gear ratio of the first gear to the second gear is 1 to 2.

Preferably, the flip cover and the support rod form a rotating structure, the flip cover is attached to the upper surface of the copper column through the power supply column, and the lower surface of the flip cover is attached to the upper surface of the lengthening frame.

Preferably, the extension frame and the clamping plate form a sliding structure, the clamping plate and the extension frame form an elastic structure through a limiting spring, and the upper surface of one end of the clamping plate is attached to the lower surface of the limiting plate.

Preferably, the trip passes through the fixed plate and constitutes the block structure with the concatenation pipe, and the concatenation pipe constitutes sliding construction with the fixed plate to the fixed plate passes through fixed spring and constitutes elastic construction with the concatenation pipe.

Preferably, the lower surface of tablet and the upper surface of electric capacity piece are laminated mutually, and electric capacity piece passes through the iron plate and constitutes sliding structure with the induction pipe to the iron plate is the annular design.

Preferably, the inside of splicing pipe is provided with the buoyancy circle, and the buoyancy circle is run through by the induction pipe to the buoyancy circle is interior outer lane design.

Preferably, the splicing pipe and the induction pipe are of an integrated structure, the splicing pipe and the buoyancy ring form a sliding structure, and the inner ring of the buoyancy ring has magnetism.

Compared with the prior art, the invention has the beneficial effects that: the portable water level measuring device for reservoir management of hydraulic engineering,

1. the water level measuring device is provided with the box body and the supporting rod, the water level measuring device is folded through the rotation of the supporting rod, the space occupied by the whole water level measuring device is reduced, and the water level measuring device is moved through the universal wheels, so that the water levels at different positions can be conveniently measured, and the convenience in the transportation process is improved;

2. the heating ring is arranged, water around the splicing pipe is heated by floating on the water surface through the heating ring, the water surface around the splicing pipe is prevented from being frozen, and meanwhile, the water level measurement is not accurate due to the fact that the outer surface of the splicing pipe is prevented from being frozen;

3. the split type water level measuring device is provided with a containing groove, when the water level measuring device is not used, the split type water level measuring device splits the splicing pipe and puts the splicing pipe into the containing groove, the splicing pipe moves along with the movement of the box body, and meanwhile, the split type structure of the splicing pipe is convenient for replacing the induction pipe when a certain section of induction pipe breaks down;

4. be provided with the induction pipe, the buoyancy through water makes the lower surface of tablet and the upper surface laminating of electric capacity piece mutually to pass back the signal of telecommunication through the copper post and data processing center, the accurate numerical value of accurate learning the water level, simple structure also makes the installation maintenance cost reduce simultaneously, and the user of service also need not have the very deep understanding of this water level measurement device.

Drawings

FIG. 1 is a schematic overall front cross-sectional structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the connection between the case and the induction tube according to the present invention;

FIG. 3 is a schematic cross-sectional view of the connection between the case and the support rod according to the present invention;

FIG. 4 is a schematic cross-sectional view of the connection between the sensing plate and the capacitor block according to the present invention;

FIG. 5 is a schematic view of a cross-sectional view of the capacitor block and the inductor tube according to the present invention;

FIG. 6 is a schematic view of a cross-sectional view of the heating ring and the anti-seize shield according to the present invention;

FIG. 7 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 8 is an enlarged view of the structure at B in FIG. 4 according to the present invention;

FIG. 9 is a schematic cross-sectional view of the connection between the first gear and the second gear.

In the figure: 1. a box body; 2. a universal wheel; 3. a receiving groove; 4. a support bar; 5. a slide bar; 6. a wire take-up spring; 7. a first gear; 8. a second gear; 9. a power line; 10. a roller; 11. heating a ring; 12. an anti-jamming guard plate; 13. a resistance block; 14. a cover is turned; 15. a power supply post; 16. lengthening the frame; 17. clamping a plate; 18. a limiting spring; 19. an induction tube; 20. a limiting plate; 21. a hook is clamped; 22. fixing the spring; 23. a fixing plate; 24. an induction plate; 25. a capacitor block; 26. an iron block; 27. a waterproof block; 28. a rubber pad; 29. a buoyancy ring; 30. a copper pillar; 31. and (6) splicing the tubes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, the present invention provides a technical solution: a portable water level measuring device for reservoir management of hydraulic engineering comprises a box body 1, universal wheels 2, a containing groove 3, a support rod 4, a slide rod 5, a take-up spring 6, a first gear 7, a second gear 8, a power line 9, idler wheels 10, a heating ring 11, an anti-blocking protection plate 12, a resistance block 13, a flip cover 14, a power column 15, a lengthened frame 16, a clamping plate 17, a limiting spring 18, a sensing tube 19, a limiting plate 20, a clamping hook 21, a fixed spring 22, a fixed plate 23, a sensing plate 24, a capacitance block 25, an iron block 26, a waterproof block 27, a rubber pad 28, a buoyancy ring 29, a copper column 30 and a splicing tube 31, wherein the universal wheels 2 are installed on the lower surface of the box body 1, the containing groove 3 is formed in the upper surface of the box body 1, the support rod 4 is connected with the support rod 4, the slide rod 5 is installed inside the support rod 4, the take-up spring 6 is arranged inside the support rod 4, the, the outer surface of the sliding rod 5 is connected with a first gear 7, the outer surface of the first gear 7 is connected with a second gear 8, the outer surface of the second gear 8 is wound with a power line 9, the other end of the power line 9 is connected with a heating ring 11, a resistance block 13 is arranged inside the heating ring 11, an anti-blocking protection plate 12 is arranged on the inner side surface of the heating ring 11, one end of the supporting rod 4, which is provided with a roller 10, is connected with a flip 14, the lower surface of the flip 14 is provided with a power column 15, one end of the supporting rod 4, which is provided with the roller 10, is provided with an extension frame 16, a clamping plate 17 is connected inside the extension frame 16, a limiting spring 18 is arranged inside the extension frame 16, a splicing pipe 31 is placed inside the extension frame 16, the outer surface of the splicing pipe 31 is provided with a limiting plate 20, the lower end surface of the splicing pipe 31, and the upper end internal connection of concatenation pipe 31 has fixed plate 23, and the inside of concatenation pipe 31 is provided with sense tube 19, and the inside of sense tube 19 is provided with tablet 24, and the internal connection of sense tube 19 has electric capacity piece 25, and the surface of electric capacity piece 25 is provided with iron plate 26, and the lower terminal surface of sense tube 19 is provided with rubber pad 28, and the up end of sense tube 19 installs waterproof piece 27 to the internally mounted of sense tube 19 has copper post 30.

The box 1 and the bracing piece 4 constitute rotating-structure, and bracing piece 4 and slide bar 5 constitute sliding structure, and slide bar 5 constitutes elastic structure through receiving line spring 6 and bracing piece 4, and the rotation through bracing piece 4 is folded water level measurement device, reduces the whole shared space of water level measurement device, realizes receiving and releasing power cord 9 through the sliding structure that bracing piece 4 and slide bar 5 constitute, avoids power cord 9 to soak in aqueous for a long time.

The sliding rod 5 is in meshed connection with the first gear 7, the first gear 7 is in meshed connection with the second gear 8, the gear ratio of the first gear 7 to the second gear 8 is 1 to 2, and the sliding rod 5 is driven to slide in the supporting rod 4 through the matching of the first gear 7 and the second gear 8 to retract and release the power line 9.

The turning cover 14 and the supporting rod 4 form a rotating structure, the turning cover 14 is attached to the upper surface of the copper column 30 through the power column 15, the lower surface of the turning cover 14 is attached to the upper surface of the lengthened frame 16, and after the installation of the splicing tube 31 is completed, the power column 15 is driven to be attached to the copper column 30 in the induction tube 19 through the rotating supporting rod 4, so that the purpose of supplying power to the induction plate 24 is achieved.

Add long frame 16 and cardboard 17 and constitute sliding construction, and cardboard 17 constitutes elastic construction through spacing spring 18 and long frame 16 to the one end upper surface of cardboard 17 laminates mutually with limiting plate 20's lower surface, carries on spacingly through cardboard 17 to splicing pipe 31, makes when splicing pipe 31 splices, splicing pipe 31 can not fall into the aquatic.

The trip 21 constitutes the block structure through fixed plate 23 and concatenation pipe 31, and concatenation pipe 31 constitutes sliding construction with fixed plate 23 to fixed plate 23 constitutes elastic construction through fixed spring 22 and

concatenation pipe

31, and 2 sections concatenation pipe 31 block together through fixed plate 23 and trip 21, increase water level measuring device's measurement stroke.

The lower surface of the induction plate 24 is attached to the upper surface of the capacitor block 25, the capacitor block 25 and the induction pipe 19 form a sliding structure through an iron block 26, the iron block 26 is designed in an annular shape, and the capacitor block 25 and the induction plate 24 are attached to enable the induction plate 24 to send an electric signal to the data processing center to measure the water level.

The inside of splicing pipe 31 is provided with buoyancy circle 29, and buoyancy circle 29 is run through by induction pipe 19 to buoyancy circle 29 is interior outer lane design, and the outer lane of buoyancy circle 29 is made for basha timber matter, and the outer lane of buoyancy circle 29 is made for magnet.

Splicing pipe 31 and induction pipe 19 are integrated structure, and splicing pipe 31 and buoyancy ring 29 constitute sliding structure to the inner circle of buoyancy ring 29 has magnetism, and buoyancy ring 29 moves up through the buoyancy of water, and buoyancy ring 29 drives iron plate 26 through the magnetic force of inner circle to move upwards simultaneously, and iron plate 26 drives electric capacity piece 25 and induction plate 24 and laminates mutually.

The working principle is as follows: when the portable water level measuring device for water conservancy project reservoir management is used, as shown in fig. 2-3, firstly, the box body 1 is pushed to the edge of a base surface of a reservoir to be measured through the universal wheel 2, then the supporting rod 4 is turned over, the lengthening frame 16 extends out of the edge of the base surface and is positioned above a water surface, then the heating ring 11 is vertically put down, the heating ring 11 drives the power line 9 to move downwards and fall to the water surface through self gravity, as shown in fig. 8, meanwhile, as the power line 9 is pulled by the heating ring 11, the power line 9 drives the other end of the power line 9 wound on the outer surface of the second gear 8 through the roller 10, the second gear 8 rotates and releases the power line 9, and meanwhile, the second gear 8 drives the sliding rod 5 to slide through the first gear 7 and compresses the take-up spring 6, so that the water level measuring;

then, as shown in fig. 1-2, the split joint pipe 31 in the receiving groove 3 is taken out and the flip 14 is rotated to expose the upper end of the elongated frame 16, the end of the joint pipe 31 with the hook 21 is put into the elongated frame 16, the joint pipe 31 moves downwards under the action of gravity until the lower surface of the limit plate 20 is attached to the upper surface of the clamping plate 17, the joint pipe 31 is supported in the elongated frame 16, then the next joint pipe 31 is taken out, the hook 21 on the lower surface of the joint pipe 31 is inserted into the groove reserved on the upper surface of the first joint pipe 31, the hook 21 is inserted downwards and presses the fixing plate 23, the fixing plate 23 is pressed to slide towards the outside of the joint pipe 31 and presses the fixing spring 22, after the barb part of the hook 21 passes over the fixing plate 23, because the fixing spring 22 is in a compressed state and the fixing plate 23 loses the pressing action of the hook 21, the fixing spring 22 drives the fixing plate 23 to slide towards the inside of the joint pipe 31, until the fixing plate 23 is attached to the hook 21, so that the hook 21 cannot be disengaged from the groove reserved on the upper surface of the splicing tube 31, splicing of 2 splicing tubes 31 is completed, then as shown in fig. 7, the catch plate 17 attached to the limiting plate 20 is pulled to the outside of the lengthened frame 16, the catch plate 17 moves to the outside of the lengthened frame 16 and compresses the limiting spring 18, the limiting plate 20 loses the supporting force of the catch plate 17, so that the splicing tube 31 falls downward under the action of gravity until the limiting plate 20 falls onto the catch plate 17 below, then the catch plate 17 above is loosened, the catch plate 17 moves to the inside of the lengthened frame 16 and returns to the initial position under the driving of the limiting spring 18, then the catch plate 17 below is pulled, the catch plate 17 moves to the outside of the lengthened frame 16 and compresses the limiting spring 18, the limiting plate 20 loses the supporting force of the catch plate 17, so that the splicing tube 31 falls downward under the action of gravity until the limiting plate 20 of the splicing tube 31 of the 2 nd splicing tube 31 falls, repeating the above process until the lower end of the 1 st spliced pipe 31 passes through the heating ring 11 and extends into the water, then turning the flip 14 over, so that the lower end of the flip 14 is attached to the upper end of the copper column 30, and the power supply column 15 supplies power to the induction plate 24 through the copper column 30, thereby completing the splicing of the spliced pipe 31;

as shown in fig. 8, the lower end of the copper pillar 30 inside each section of the sensing tube 19 is attached to the upper end of the copper pillar 30 inside the sensing tube 19 below, so that the copper pillar 30 forms a complete circuit to facilitate power supply to the sensing board 24, and the exposed part of the copper pillar 30 is separated from water by the interference fit formed by the waterproof blocks 27 and the rubber pads 28 arranged on the upper and lower surfaces of the sensing tube 19, thereby ensuring the stability of the circuit;

when the water level rises, as shown in fig. 4-5, the buoyancy ring 29 moves upwards under the drive of the buoyancy provided by the water, the magnet at the inner ring of the buoyancy ring 29 drives the capacitor block 25 to move upwards through the attraction iron block 26 and finally contacts the induction plate 24, the induction plate 24 is triggered by the capacitor block 25 to send an electric signal back to the information processing center, the worker can easily measure the height of the current water level by calculating the number of the splicing pipes 31 and the height of the base surface, and simultaneously, as the water level rises, so that the heating coil 11 also rises along with the rise of the water level, the power cord 9 changes from a tight state to a loose state, as shown in fig. 8, because the wire-rewinding spring 6 is compressed, therefore, the wire take-up spring 6 drives the sliding rod 5 to roll the loose power wire 9 on the outer surface of the second gear 8 through the first gear 7 and the second gear 8, so that the power wire 9 cannot be soaked in water to cause potential safety hazards;

when the water level needs to be measured in cold weather in winter, the power line 9 is used for electrifying the resistance block 13, the resistance block 13 emits heat to heat the water surface around the splicing pipe 31, the outer surface of the splicing pipe 31 and the surrounding water surface are guaranteed not to be frozen, and the water level measuring device cannot lose the measuring function due to the freezing of the water surface, as shown in fig. 2 and 6, meanwhile, due to the existence of the anti-blocking protection plate 12, when the water level rises or falls, the anti-blocking protection plate 12 is turned over after contacting the limiting plate 20, so that the heating ring 11 cannot be blocked by the limiting plate 20 on the outer surface of the splicing pipe 31 and is located below the water surface or hung on the outer surface of the splicing pipe 31 for a long time, and the heating ring 11;

after water level measurement finishes, as shown in fig. 3, take out and split apart concatenation pipe 31 from the aquatic and place in accomodating groove 3, then upset bracing piece 4 for bracing piece 4 turns over the upper surface that turns over to box 1, accomplishes the folding to water level measurement device, has reduced water level measurement device and has taken space, has improved the portability, has increased holistic practicality.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a portable water level measurement device is used in hydraulic engineering reservoir management, includes box (1), universal wheel (2), accomodates groove (3), copper post (30) and concatenation pipe (31), its characterized in that: the lower surface of the box body (1) is provided with universal wheels (2), the upper surface of the box body (1) is provided with a containing groove (3), the upper surface of the box body (1) is connected with a supporting rod (4), the inside of the supporting rod (4) is provided with a sliding rod (5), the inside of the supporting rod (4) is provided with a take-up spring (6), the lower surface of the supporting rod (4) is provided with a roller (10), the outer surface of the sliding rod (5) is connected with a first gear (7), the outer surface of the first gear (7) is connected with a second gear (8), the outer surface of the second gear (8) is wound with a power line (9), the other end of the power line (9) is connected with a heating ring (11), the inside of the heating ring (11) is provided with a resistance block (13), and the inner side surface of the heating ring (11, the one end that gyro wheel (10) were installed to bracing piece (4) is connected with flip (14), and the lower surface of flip (14) is provided with power post (15), the one end that gyro wheel (10) were installed to bracing piece (4) is provided with lengthening frame (16), and the internal connection that lengthens frame (16) has cardboard (17), and the internally mounted that lengthens frame (16) has spacing spring (18), splicing pipe (31) has been placed to the inside of lengthening frame (16), and the surface of splicing pipe (31) is provided with limiting plate (20), the lower terminal surface of splicing pipe (31) is provided with trip (21), and the upper end internally mounted of splicing pipe (31) has fixed spring (22), and the upper end internally connected of splicing pipe (31) has fixed plate (23), the inside of splicing pipe (31) is provided with induction tube (19), and the inside of induction tube (19) is provided with tablet (24), the utility model discloses a water-proof induction heating device, including induction tube (19), the internally connected of induction tube (19) has electric capacity piece (25), and the surface of electric capacity piece (25) is provided with iron plate (26), the lower terminal surface of induction tube (19) is provided with rubber pad (28), and the up end of induction tube (19) installs waterproof piece (27) to the internally mounted of induction tube (19) has copper post (30).

2. The portable water level measuring device for hydraulic engineering reservoir management of claim 1, characterized in that: the box body (1) and the support rod (4) form a rotating structure, the support rod (4) and the slide rod (5) form a sliding structure, and the slide rod (5) and the support rod (4) form an elastic structure through a take-up spring (6).

3. The portable water level measuring device for hydraulic engineering reservoir management of claim 1, characterized in that: the sliding rod (5) is in meshed connection with the first gear (7), the first gear (7) is in meshed connection with the second gear (8), and the gear ratio of the first gear (7) to the second gear (8) is 1 to 2.

4. The portable water level measuring device for hydraulic engineering reservoir management of claim 1, characterized in that: the flip cover (14) and the support rod (4) form a rotating structure, the flip cover (14) is attached to the upper surface of the copper column (30) through the power column (15), and the lower surface of the flip cover (14) is attached to the upper surface of the lengthening frame (16).

5. The portable water level measuring device for hydraulic engineering reservoir management of claim 1, characterized in that: lengthening frame (16) and cardboard (17) constitute sliding construction, and cardboard (17) constitute elastic construction through spacing spring (18) and lengthening frame (16) to one end upper surface of cardboard (17) is laminated with the lower surface of limiting plate (20) mutually.

6. The portable water level measuring device for hydraulic engineering reservoir management of claim 1, characterized in that: the clamping hook (21) and the splicing pipe (31) form a clamping structure through the fixing plate (23), the splicing pipe (31) and the fixing plate (23) form a sliding structure, and the fixing plate (23) and the splicing pipe (31) form an elastic structure through the fixing spring (22).

7. The portable water level measuring device for hydraulic engineering reservoir management of claim 1, characterized in that: the lower surface of tablet (24) and the upper surface of electric capacity piece (25) are laminated mutually, and electric capacity piece (25) constitute sliding construction through iron plate (26) and induction pipe (19) to iron plate (26) are the annular design.

8. The portable water level measuring device for hydraulic engineering reservoir management of claim 1, characterized in that: the inner part of the splicing pipe (31) is provided with a buoyancy ring (29), the buoyancy ring (29) is penetrated by the induction pipe (19), and the buoyancy ring (29) is designed into an inner ring and an outer ring.

9. The portable water level measuring device for hydraulic engineering reservoir management according to claim 8, characterized in that: the splicing pipe (31) and the induction pipe (19) are of an integrated structure, the splicing pipe (31) and the buoyancy ring (29) form a sliding structure, and the inner ring of the buoyancy ring (29) has magnetism.