Flow measuring device for water conservancy geological survey and using method thereof

Abstract

The flow measuring device comprises a split type landfill base, a supporting frame, a photovoltaic charging assembly, an automatic tractor and a flow meter, the split type landfill base is buried in a foundation pit, and the supporting frame is longitudinally inserted into the split type landfill base in a penetrating mode and comprises a vertical rod, a transverse rod and a turning plate; the transverse rod is horizontally installed at the upper end of the vertical rod, the transverse rod and the vertical rod are connected through a turning plate, the photovoltaic charging assembly is installed on the vertical rod and composed of a solar cell panel, an inverter, a controller and a storage battery, and the solar cell panel is installed on the vertical rod, connected with the inverter and the controller through lines and used for storing electric power in the storage battery. According to the flow measuring device designed by the invention, the flow measuring device can be conveniently and quickly mounted and can be subsequently migrated, in addition, the automatic position adjustment treatment of the flow meter can be realized through the matched automatic tractor, and the disassembly and assembly convenience and the replacement convenience of the flow measuring device are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy flow measurement equipment, and in particular to a flow measurement device for water conservancy geological survey and a use method thereof. Background Art

[0002] Hydrogeological survey refers to the process of detailed investigation and survey of the geological characteristics, geological structure, groundwater conditions and geological disasters in the project area before the construction of water conservancy projects. Through hydrogeological survey, project planners and designers can understand the geological conditions of the project area and provide necessary geological basic data and information for the site selection, design and construction of water conservancy projects. There are various equipment for measuring water flow, including radar flowmeter, Doppler flowmeter and ultrasonic open channel flowmeter, etc. In order to facilitate the measurement of water flow in the basin, it is usually necessary to install the flowmeter on the bank of the basin with a special mounting frame and measure the water flow through the flowmeter.

[0003] However, the existing flowmeters for water conservancy surveys have the following problems during use: before installing the flowmeter, it is usually necessary to open a foundation pit at the installation location in advance and bury the mounting frame to the shore to ensure the stability of the mounting frame. However, once the installation is completed, it is not convenient to move the mounting frame as needed, and the mounting frame has a certain height. When the flowmeter installed at the end of the mounting frame needs to be inspected and replaced, it is necessary to climb and remove it manually or disassemble the mounting frame, which is cumbersome. Therefore, it is necessary to design a corresponding technical solution to solve the existing technical problems. Summary of the invention

[0004] The object of the present invention is to provide a flow measuring device for water conservancy and geological survey and a method of using the same, which solves the technical problem that before installing the flow meter, it is usually necessary to open a foundation pit at the installation location in advance and bury the mounting frame and fix it on the shore to ensure the stability of the mounting frame. However, once the installation is completed, it is not convenient to move the mounting frame as needed, and the mounting frame has a certain height. When the flow meter installed at the end of the mounting frame needs to be inspected and replaced, it is necessary to climb and remove it manually or disassemble the mounting frame, which is cumbersome.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a flow measurement device for water conservancy and geological survey, comprising a split landfill base, a support frame, a photovoltaic charging component, an automatic tractor and a flow meter, wherein the split landfill base is buried in a foundation pit, the support frame is longitudinally inserted into the split landfill base and comprises a vertical pole, a horizontal pole and a turning plate, the horizontal pole is horizontally installed on the upper end of the vertical pole and the two are connected by the turning plate, the photovoltaic charging component is installed on the vertical pole and consists of a solar panel, an inverter, a controller and a battery, the solar panel is installed on the vertical pole and is connected to the inverter and the controller through a line and stores electricity in the battery, the automatic tractor is slidably installed on the support frame and is connected to the flow meter at the bottom;

[0006] The split landfill base includes a main tube, an earth-entering cone, a water-injection stabilizing plug plate, a magnetic detacher and a floating mounting seat. The main tube is buried in a foundation pit. The earth-entering cone is divided into two groups and symmetrically installed at the bottom of the main tube. The surface of the main tube is symmetrically provided with four groups of mounting openings. The water-injection stabilizing plug plates are divided into four groups and are respectively inserted into the mounting openings. The bottom of the water-injection stabilizing plug plates is connected to the magnetic detacher. The floating mounting seat is threadedly inserted into the main tube and used in conjunction with the water-injection stabilizing plug plates. The lower end of the vertical rod is inserted into the floating mounting seat.

[0007] The automated tractor comprises a connecting block, a side plate, a driving gear and a driving motor. The lower end of the connecting block is connected to a flow meter. The side plates are divided into two groups and are symmetrically installed on the upper end of the connecting plate. The driving gear is installed between the two groups of side plates. The driving motor is installed on the side plate and the power output end is connected to the driving gear.

[0008] As a preferred embodiment of the present invention, guide grooves are provided on the surfaces of the vertical rods, horizontal rods and turning plates, a plurality of groups of latching teeth are formed in the guide grooves, two groups of slide grooves are symmetrically provided on both sides of the guide grooves, balls are slidably arranged in the slide grooves, and the lower ends of the balls are connected to the side plates through the rod body.

[0009] As a preferred embodiment of the present invention, the turning plate is in an arc-shaped structure and both ends thereof smoothly transition to the vertical rod and the horizontal rod.

[0010] As a preferred embodiment of the present invention, the inner end spacing of the two groups of water-filled stabilizing plug plates located at the upper part is greater than the spacing of the two groups of water-filled stabilizing plug plates located at the lower part.

[0011] As a preferred embodiment of the present invention, the water-injected stabilizing plug plate includes a hollow plug plate, a movable rod, an inner ball and a floating limit column. A guide cavity is formed inside the hollow plug plate and drainage channels are opened on both sides of the outer end. The drainage channel is connected to the guide cavity. The outer end of the movable rod is located outside the hollow plug plate and the inner end is connected to the inner ball. The floating limit column is divided into two groups and is symmetrically longitudinally inserted into the hollow plug plate. A reset spring is embedded on the floating limit column.

[0012] As a preferred embodiment of the present invention, the outer end of the hollow insert plate is in a conical structure and the inner end is in an arc structure, and the arc of the inner end of the hollow insert plate matches the lower end of the floating mounting seat.

[0013] As a preferred embodiment of the present invention, the magnetic separator includes a magnet fixed to the inner end of the hollow plug plate and an electromagnetic block installed on the inner wall of the main cylinder. The electromagnetic block is distributed corresponding to the magnet. The electromagnetic block is externally connected to a power supply and the inner end magnetic pole is the same as the outer end magnetic pole of the magnet when powered on.

[0014] As a preferred embodiment of the present invention, the floating mounting seat includes a floating column, a sealing rubber sleeve, a top plate and a rocker arm. The floating column is in a truncated cone structure and the diameter of the lower end is smaller than the diameter of the upper end. The floating column is threadedly inserted into the main tube. The sealing rubber sleeve is fixed on the floating column. The top plate is installed on the upper end of the floating column. The rocker arm is installed on the edge of the top plate. The floating column and the top plate are longitudinally provided with sockets, and the vertical pole is inserted into the sockets.

[0015] As a preferred embodiment of the present invention, the specific method of use is as follows:

[0016] When the support frame needs to be installed, the staff will open a foundation pit at the installation location in advance, and the opening depth of the foundation pit is controlled at 0.8m-1m. Then the staff will insert the split landfill base into the foundation pit and pour water into the main tube. The staff will use the handheld rocker to drive the floating mounting seat to move downward. During the downward movement, the floating column will move downward synchronously and resist the moving rod and the hollow plug plate to move outward. During the outward movement, the hollow plug plate will be inserted into the soil and the floating limit column will extend. At the same time, water will flow out from the drainage channel along the diversion cavity to moisten the soil, making it easier for the hollow plug plate to be inserted into the soil, thereby achieving the purpose of fixed installation of the split landfill base. After the installation is completed, the lower end of the support frame will be inserted into the socket to complete the installation of the support frame, and then the electric drive will be driven. The machine drives the driving gear to rotate, and the driving gear moves along the guide groove and climbs to the end of the support frame to complete the position adjustment of the flow meter. When the flow measuring device needs to be moved, the staff will pull out and disassemble the support frame, and at the same time reverse the floating mounting seat to make the floating mounting seat separate from the main cylinder, and energize the electromagnetic block. The electromagnetic block generates magnetic force when powered and pushes the magnet and the hollow plug plate to move inward, so that the hollow plug plate is separated from the soil, and the split landfill base can be taken out. In addition, when the flow meter needs to be repaired and replaced, the driving motor drives the driving gear to rotate, and the driving gear moves down along the guide groove and to the lower end of the guide groove, so that the flow meter can be repaired and replaced. The operation is simple and easy to use.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention designs a flow meter survey equipment which is convenient for efficient installation and disassembly. The flow measuring device comprises a split landfill base, a support frame, a photovoltaic charging component, an automatic tractor and a flow meter. When the support frame needs to be installed, the staff will open a foundation pit at the installation position in advance, and then insert the split landfill base into the foundation pit and adjust and install the split landfill base so that the stabilizing plug plate in the split landfill base extends out and is inserted into the soil to ensure the stability of the installation of the split landfill base. The support frame is then inserted into the split landfill base, and the automatic tractor climbs along the support frame and moves the flow meter to the end of the support frame. At the same time, the photovoltaic charging component converts solar energy into electrical energy and provides partial power for the flow meter. When the flow measuring equipment needs to be towed, the support frame is detached and the split landfill base is quickly taken out. When the flow meter needs to be repaired and replaced, the position of the flow meter can be adjusted by the automatic tractor, which is convenient for disassembly operation.

[0019] 2. The flow measuring device designed in the present invention is convenient for the rapid installation and subsequent migration of the flow measuring device. In addition, the automatic position adjustment processing of the flow meter can be realized through the matching automatic traction device, which greatly improves the convenience of disassembly and assembly and replacement of the flow measuring equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the overall structure diagram of the present invention;

[0021] Figure 2 This is a structural diagram of the support frame of the present invention;

[0022] Figure 3 This is a partial structural diagram of the split landfill base of the present invention;

[0023] Figure 4 This is a top view distribution diagram of the water-filled stable plugboard of the present invention;

[0024] Figure 5 This is a diagram showing the internal structure of the water-filled stabilizing plugboard of the present invention;

[0025] Figure 6 This is a structural diagram of the automated tractor described in the present invention.

[0026] In the figure: 1. flow meter; 2. vertical pole; 3. horizontal pole; 4. turning plate; 5. solar panel; 6. inverter; 7. controller; 8. battery; 9. main tube; 10. earth-entering cone; 11. water-injected stabilizing plug plate; 12. magnetic detacher; 13. floating mounting seat; 14. mounting port; 15. connecting block; 16. side plate; 17. driving gear; 18. driving motor; 19. guide groove; 20. latching tooth; 21. slide groove; 22. ball bearing; 23. hollow plug plate; 24. moving rod; 25. inner ball; 26. floating limit column; 27. diversion cavity; 28. drainage channel; 29. ​​reset spring; 30. magnet; 31. electromagnetic block; 32. floating column; 33. sealing rubber sleeve; 34. top plate; 35. rocker; 36. socket. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-6The present invention provides a technical solution: a flow measuring device for water conservancy and geological survey, comprising a split landfill base, a support frame, a photovoltaic charging component, an automatic tractor and a flow meter 1, the split landfill base is buried in a foundation pit, the support frame is longitudinally inserted into the split landfill base and comprises a vertical pole 2, a horizontal pole 3 and a turning plate 4, the horizontal pole 3 is horizontally installed on the upper end of the vertical pole 2 and the two are connected by the turning plate 4, the photovoltaic charging component is installed on the vertical pole 2 and consists of a solar panel 5, an inverter 6, a controller 7 and a battery 8, the solar panel 5 is installed on the vertical pole 2 and is connected to the inverter 6 and the controller 7 through a line and stores electricity in the battery 8, the automatic tractor is slidably installed on the support frame and is connected to the flow meter 1 at the bottom;

[0029] The split landfill base includes a main tube 9, an earth-entering cone 10, a water-injection stabilizing plug plate 11, a magnetic detacher 12 and a floating mounting seat 13. The main tube 9 is buried in the foundation pit. The earth-entering cone 10 is divided into two groups and symmetrically installed at the bottom of the main tube 9. The surface of the main tube 9 is symmetrically provided with four groups of mounting openings 14. The water-injection stabilizing plug plate 11 is divided into four groups and respectively inserted into the mounting openings 14. The bottom of the water-injection stabilizing plug plate 11 is connected to the magnetic detacher 12. The floating mounting seat 13 is threadedly inserted into the main tube 9 and used in conjunction with the water-injection stabilizing plug plate 11. The lower end of the vertical rod 2 is inserted into the floating mounting seat 13.

[0030] The automated traction device includes a connecting block 15, a side plate 16, a driving gear 17 and a driving motor 18. The lower end of the connecting block 15 is connected to the flow meter 1. The side plates 16 are divided into two groups and are symmetrically installed on the upper end of the connecting plate. The driving gear 17 is installed between the two groups of side plates 16. The driving motor 18 is installed on the side plate 16 and the power output end is connected to the driving gear 17. The driving motor 18 drives the driving gear 17 to rotate, and the driving gear 17 moves along the guide groove 19.

[0031] Further improvement, such as Figure 2 and Figure 6 As shown, guide grooves 19 are provided on the surfaces of the vertical rod 2, the horizontal rod 3 and the turning plate 4, and a plurality of groups of latch teeth 20 are formed in the guide grooves 19. Two groups of slide grooves 21 are symmetrically provided on both sides of the guide grooves 19, and balls 22 are slidably arranged in the slide grooves 21. The lower ends of the balls 22 are connected to the side plates 16 through the rod bodies. The driving motor 18 drives the driving gear 17 to rotate, and the driving gear 17 moves along the guide grooves 19.

[0032] Further improvement, such as Figure 2 As shown, the turning plate 4 is in an arc-shaped structure and its two ends smoothly transition with the vertical pole 2 and the horizontal pole 3, so that the automatic tractor can move along the vertical pole 2, the horizontal pole 3 and the turning plate 4.

[0033] Further improvement, such as Figure 4As shown, the inner end spacing of the two groups of water-filled stabilizing plug plates 11 located at the upper part is greater than the spacing of the two groups of water-filled stabilizing plug plates 11 located at the lower part. This design method facilitates the position adjustment of the shape of the floating column 32.

[0034] Further improvement, such as Figure 5 As shown, the water-injected stable plug plate 11 includes a hollow plug plate 23, a moving rod 24, an inner ball 25 and a floating limit column 26. A guide cavity 27 is formed inside the hollow plug plate 23 and drainage channels 28 are opened on both sides of the outer end. The drainage channel 28 is connected to the guide cavity 27. The outer end of the moving rod 24 is located on the outer side of the hollow plug plate 23 and the inner end is connected to the inner ball 25. The inner end of the moving rod 24 is a spherical structure. The floating limit column 26 is divided into two groups and is symmetrically longitudinally inserted on the hollow plug plate 23. A reset spring 29 is embedded on the floating limit column 26. During the outward movement of the moving rod 24, the inner ball 25 acts on the floating limit column 26, so that the floating limit column 26 can be pushed out to achieve the purpose of limiting.

[0035] Further improvement, such as Figure 3 As shown, the outer end of the hollow plug plate 23 is a conical structure and the inner end is an arc structure. The arc of the inner end of the hollow plug plate 23 fits with the lower end of the floating mounting seat 13, so as to facilitate the movement of the floating column 32.

[0036] Further improvement, such as Figure 3 As shown, the magnetic detacher 12 includes a magnet 30 fixed to the inner end of the hollow plug plate 23 and an electromagnetic block 31 installed on the inner wall of the main tube 9. The electromagnetic block 31 is distributed correspondingly to the magnet 30. The electromagnetic block 31 is externally connected to a power source and the inner end magnetic pole is the same as the outer end magnetic pole of the magnet 30 when powered on. When the electromagnetic block 31 is powered on, the electromagnetic block 31 generates a magnetic force and pushes the magnet 30 and the hollow plug plate 23 inward, so that the hollow plug plate 23 is separated from the soil.

[0037] Specifically, the floating mounting seat 13 includes a floating column 32, a sealing rubber sleeve 33, a top plate 34 and a rocker 35. The floating column 32 is a truncated cone structure and the diameter of the lower end is smaller than the diameter of the upper end. The floating column 32 is threadedly inserted into the main tube 9, the sealing rubber sleeve 33 is fixed on the floating column 32, the top plate 34 is installed at the upper end of the floating column 32, and the rocker 35 is installed on the edge of the top plate 34. A socket 36 is longitudinally opened in the floating column 32 and the top plate 34, and the vertical pole 2 is inserted into the socket 36. By holding the rocker 35 to drive the top plate 34 and the floating column 32 to move up and down synchronously, the position of the floating column 32 can be adjusted and then the position of the hollow plug plate 23 can be adjusted.

[0038] During use: when the support frame needs to be installed, the staff will open a foundation pit at the installation position in advance, and the opening depth of the foundation pit is controlled at 0.8m-1m. Then the staff will insert the split landfill base into the foundation pit and pour water into the main tube 9. The handheld rocker 35 drives the floating mounting seat 13 to move downward. During the downward movement, the floating column 32 moves downward synchronously and contacts the moving rod 24 and the hollow plug plate 23 to move outward. During the outward movement, the hollow plug plate 23 is inserted into the soil and the floating limit column 26 extends out. At the same time, water flows along the diversion cavity 27 and is discharged from the drainage channel 28 to moisten the soil, making it easier for the hollow plug plate 23 to be inserted into the soil, thereby achieving the purpose of fixed installation of the split landfill base. After the installation is completed, the lower end of the support frame is inserted into the socket 36 to complete the installation of the support frame, and then the motor 18 is driven to The driving gear 17 rotates, and the driving gear 17 moves along the guide groove 19 and climbs to the end of the support frame to complete the position adjustment of the flow meter 1. When the flow measuring device needs to be moved, the staff pulls out and disassembles the support frame, and at the same time reverses the floating mounting seat 13 to make the floating mounting seat 13 separate from the main cylinder 9, and energizes the electromagnetic block 31. The electromagnetic block 31 generates magnetic force in the energized state and pushes the magnet 30 and the hollow plug plate 23 to move inward, so that the hollow plug plate 23 is separated from the soil, and the split landfill base can be taken out. In addition, when the flow meter 1 needs to be repaired and replaced, the driving motor 18 drives the driving gear 17 to rotate, and the driving gear 17 moves down along the guide groove 19 to the lower end of the guide groove 19, so that the flow meter 1 can be repaired and replaced. The operation is simple and easy to use.

[0039] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0041] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flow measuring device for water conservancy and geological survey, characterized in that: The invention comprises a split landfill base, a support frame, a photovoltaic charging component, an automatic tractor and a flow meter (1), wherein the split landfill base is buried in a foundation pit, the support frame is longitudinally inserted into the split landfill base and comprises a vertical pole (2), a horizontal pole (3) and a turning plate (4), the horizontal pole (3) is horizontally mounted on the upper end of the vertical pole (2) and the two are connected via the turning plate (4), the photovoltaic charging component is mounted on the vertical pole (2) and comprises a solar panel (5), an inverter (6), a controller (7) and a storage battery (8), the solar panel (5) is mounted on the vertical pole (2) and is connected to the inverter (6) and the controller (7) via a line and stores electricity in the storage battery (8), the automatic tractor is slidably mounted on the support frame and is connected to the flow meter (1) at the bottom; The split-type landfill base comprises a main tube (9), an earth-entering cone (10), a water-injection type stabilizing plug plate (11), a magnetic detacher (12) and a floating mounting seat (13); the main tube (9) is buried in a foundation pit; the earth-entering cone (10) is divided into two groups and is symmetrically mounted on the bottom of the main tube (9); the surface of the main tube (9) is symmetrically provided with four groups of mounting openings (14); the water-injection type stabilizing plug plates (11) are divided into four groups and are respectively inserted into the mounting openings (14); the lower part of the water-injection type stabilizing plug plates (11) is connected to the magnetic detacher (12); the floating mounting seat (13) is threadedly inserted into the main tube (9) and is used in conjunction with the water-injection type stabilizing plug plates (11); and the lower end of the vertical rod (2) is inserted into the floating mounting seat (13); The automated tractor comprises a connecting block (15), a side plate (16), a driving gear (17) and a driving motor (18); the lower end of the connecting block (15) is connected to the flow meter (1); the side plate (16) is divided into two groups and symmetrically mounted on the upper end of the connecting plate; the driving gear (17) is mounted between the two groups of side plates (16); the driving motor (18) is mounted on the side plate (16) and the power output end is connected to the driving gear (17).

2. A flow measuring device for water conservancy and geological survey according to claim 1, characterized in that: The surfaces of the vertical rod (2), the horizontal rod (3) and the turning plate (4) are all provided with guide grooves (19), a plurality of groups of latching teeth (20) are formed in the guide grooves (19), two groups of slide grooves (21) are symmetrically provided on both sides of the guide grooves (19), a ball bearing (22) is slidably arranged in the slide grooves (21), and the lower end of the ball bearing (22) is connected to the side plate (16) through a rod body.

3. A flow measuring device for water conservancy and geological survey according to claim 2, characterized in that: The turning plate (4) has an arc-shaped structure and its two ends smoothly transition to the vertical rod (2) and the horizontal rod (3).

4. A flow measuring device for water conservancy and geological survey according to claim 1, characterized in that: The distance between the inner ends of the two groups of water-filled stabilizing plug plates (11) located at the top is greater than the distance between the two groups of water-filled stabilizing plug plates (11) located at the bottom.

5. A flow measuring device for water conservancy and geological survey according to claim 4, characterized in that: The water-injected stable plug plate (11) comprises a hollow plug plate (23), a movable rod (24), an inner ball (25) and a floating limit column (26); a flow guide cavity (27) is formed inside the hollow plug plate (23) and drainage channels (28) are provided on both sides of the outer end; the drainage channels (28) are connected to the flow guide cavity (27); the outer end of the movable rod (24) is located outside the hollow plug plate (23) and the inner end is connected to the inner ball (25); the floating limit column (26) is divided into two groups and symmetrically inserted longitudinally on the hollow plug plate (23); and a return spring (29) is embedded on the floating limit column (26).

6. A flow measuring device for water conservancy and geological survey according to claim 5, characterized in that: The outer end of the hollow insert plate (23) is in a conical structure and the inner end is in an arc structure, and the arc of the inner end of the hollow insert plate (23) fits with the lower end of the floating mounting seat (13).

7. A flow measuring device for water conservancy and geological survey according to claim 6, characterized in that: The magnetic disconnector (12) comprises a magnet (30) fixed to the inner end of the hollow plug plate (23) and an electromagnetic block (31) mounted on the inner wall of the main cylinder (9), wherein the electromagnetic block (31) is distributed correspondingly to the magnet (30), the electromagnetic block (31) is externally connected to a power source and the inner end magnetic pole is the same as the outer end magnetic pole of the magnet (30) when powered on.

8. A flow measuring device for water conservancy and geological survey according to claim 7, characterized in that: The floating mounting seat (13) comprises a floating column (32), a sealing rubber sleeve (33), a top plate (34) and a rocker (35); the floating column (32) is a truncated cone structure with a lower end diameter smaller than an upper end diameter; the floating column (32) is threadedly inserted into the main tube (9); the sealing rubber sleeve (33) is fixed on the floating column (32); the top plate (34) is installed on the upper end of the floating column (32); the rocker (35) is installed on the edge of the top plate (34); a socket (36) is longitudinally opened in the floating column (32) and the top plate (34); the vertical rod (2) is inserted into the socket (36).

9. The method for using the flow measuring device for hydrogeological survey according to claim 8, characterized in that: The specific usage is as follows: When the support frame needs to be installed, the staff will open a foundation pit at the installation location in advance, and the opening depth of the foundation pit is controlled to be 0.8m-1m. Then the staff will insert the split landfill base into the foundation pit and pour water into the main tube (9). The handheld rocker (35) drives the floating mounting seat (13) to move downward. During the downward movement, the floating column (32) moves downward synchronously and resists the moving rod (24) and the hollow plug plate (23) to move outward. During the outward movement, the hollow plug plate (23) is inserted into the soil and the floating limit column (26) extends. At the same time, water flows along the diversion cavity (27) and is discharged from the drainage channel (28) to moisten the soil, making it easier for the hollow plug plate (23) to be inserted into the soil, thereby achieving the purpose of fixing the split landfill base. After the installation is completed, the lower end of the support frame is inserted into the socket (36) to complete the installation of the support frame. Then the driving motor (18) drives the driving gear (17). The driving gear (17) is rotated, and moves along the guide groove (19) and climbs to the end of the support frame to complete the position adjustment of the flow meter (1). When the flow measuring device needs to be moved, the staff pulls out and disassembles the support frame, and at the same time reversely rotates the floating mounting seat (13) so that the floating mounting seat (13) is separated from the main cylinder (9), and the electromagnetic block (31) is energized. The electromagnetic block (31) generates magnetic force in the energized state and pushes the magnet (30) and the hollow plug plate (23) to move inward, so that the hollow plug plate (23) is separated from the soil, and the split landfill base can be taken out. In addition, when the flow meter (1) needs to be repaired and replaced, the driving motor (18) drives the driving gear (17) to rotate, and the driving gear (17) moves down along the guide groove (19) to the lower end of the guide groove (19), and the flow meter (1) can be repaired and replaced. The operation is simple and convenient to use.

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