Submersible water flow velocity detection equipment for hydrogeological survey

Abstract

The present invention discloses a submersible water flow velocity detection device for hydrogeological exploration, which relates to the field of hydrogeological exploration. The lower surface of the flow velocity detector of this device is fixedly connected with a fixed seat, and a retractable balloon is arranged on the side of the fixed seat. A driving stud is installed inside the submerged counterweight seat through a servo motor. The top of the submerged counterweight seat is provided with a telescopic cover, and the telescopic cover is threadedly connected with the driving stud. An inflatable airbag is arranged inside the telescopic cover. A wire winding roller is arranged inside the fixed seat, and the wire winding roller is in transmission connection with the driving stud. The wire winding roller is in transmission connection with the retractable balloon through a traction steel cable. By setting its center of gravity at the bottom end, this device can automatically sink vertically when placed in water. When the servo motor is started and the inflatable airbag is inflated at the same time, the volume of the top end of this device expands, and multiple retractable balloons are filled, realizing stable rising, effectively preventing the device from turning over in the water body, and being able to quickly float to the water surface during recovery.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogeological exploration, and more specifically, to a submersible water flow velocity detection device for hydrogeological exploration. Background Art

[0002] During the process of hydrogeological exploration, it is usually necessary to detect the water flow velocity to understand the erosion effect of the river channel water flow on the river bank at different times. For this process, a water flow velocity detector is required. At the same time, to ensure the accuracy of the detection data, it is usually necessary to detect the flow velocity at different depths of the water body.

[0003] After searching the existing publicly disclosed patent with the publication number CN113624989B, this publicly disclosed patent introduces a submersible water flow velocity detection device for hydrogeological exploration. However, after a detailed understanding of this publicly disclosed patent, it is found that there are certain technical problems;

[0004] First, the submersible water flow velocity detection device for hydrogeological exploration introduced in this patent uses the same principle as a submarine. By filling water into the device main body, the overall density is increased, and then the device sinks. Then, by draining water, the overall density of the device is reduced to float. However, in the specification part of this publicly disclosed patent, it is recorded that "the device is put into the water, and thus the device will slowly sink. When it sinks to a certain extent, due to the weight of the device, the device cannot continue to sink. At this time, the first micro-motor in the water storage mechanism 5 is started" to fill water and sink. This shows that the overall density of the device in the initial state is greater than the water density. Therefore, when floating, the device cannot completely float out of the water surface, which brings trouble to the subsequent device recovery;

[0005] Secondly, this device is provided with "water storage mechanisms" on both sides of the "outer shell of the submersible water flow velocity detection device", which makes the overall density distribution of the device uneven. When measuring the water velocity underwater, the water body is in a flowing state, which makes the device as a whole flip and shake irregularly when sinking and hovering, affecting the detection work of the flow velocity detector, and when sinking to the bottom of the water, it cannot ensure that the velocity detector will not plunge into the silt, and cannot ensure that the detection work can be carried out smoothly;

[0006] In summary, a submersible water flow velocity detection device for hydrogeological exploration is provided to solve the above problems. Summary of the Invention

[0007] (1) Technical Problems to be Solved

[0008] In view of the deficiencies of the prior art, the present invention discloses a submersible water flow velocity detection device for hydrogeological exploration to solve the problems raised in the above background art.

[0009] (II) Technical solution

[0010] To achieve the above objectives, the present invention is implemented through the following technical solutions: a submersible water flow velocity detection device for hydrogeological survey, comprising a velocity detector and a submersible weight seat with adjustable overall density installed at the bottom of the velocity detector;

[0011] A flow velocity detector, wherein a fixing seat is fixedly connected to the lower surface of the flow velocity detector, and a plurality of shrinkable balloons are provided in a ring shape on the side surface of the fixing seat;

[0012] A submersible counterweight seat, the outer surface of which is fixedly welded with a bottom-sinking stabilizing bracket, a servo motor is arranged inside the submersible counterweight seat, a driving stud is fixedly installed on the output end of the servo motor, a telescopic cover that can move up and down is movably sleeved on the top outer surface of the submersible counterweight seat, the telescopic cover is threadedly connected with the driving stud, an inflatable airbag and an air compression tank are arranged inside the telescopic cover, and the inflatable airbag is connected to the inside of the air compression tank;

[0013] The fixing seat is fixedly connected to the top of the telescopic cover, and a rotatable winding roller is arranged inside the fixing seat, and the winding roller is transmission-connected to the driving stud, and multiple groups of traction cables are wound on the outer surface of the winding roller, and the traction cables are transmission-connected to the shrinkable balloon.

[0014] Preferably, a sealing rubber ring is installed on the inner wall of the bottom end of the telescopic cover, an anti-slip ring is fixedly welded to the top end of the submersible counterweight seat, the anti-slip ring is slidably connected to the inside of the telescopic cover, and a counterweight filler is arranged inside the submersible counterweight seat.

[0015] Preferably, multiple groups of batteries are fixedly installed inside the counterweight filler, the servo motor is arranged in the middle of the counterweight filler, the multiple groups of batteries are distributed in a circular array on the side of the servo motor, and the batteries are electrically connected to the servo motor, and a waterproof cover is arranged on the top of the counterweight filler.

[0016] Preferably, a sealing cover plate is fixedly welded to the inner top of the telescopic cover, an equipment seat is fixedly installed on the lower surface of the sealing cover plate, the air compression tank is fixedly installed inside the equipment seat, a one-way valve is fixedly installed on the top of the fixed seat, and the inflatable airbag is connected to the inside of the one-way valve.

[0017] Preferably, an exhaust pipe is fixedly installed on the top of the sealing cover plate, a connecting groove is provided inside the fixing seat, the exhaust pipe is connected to the one-way valve through the connecting groove, and a solenoid valve is provided between the inflatable airbag, the air compression tank and the exhaust pipe.

[0018] Preferably, an activity groove is formed inside the inflatable airbag. The top end of the driving stud penetrates through the activity groove and the equipment base, and the driving stud is threadedly connected to the sealing cover plate. A positioning shaft is fixedly connected to the lower surface of the equipment base. A positioning groove is formed inside the submerged counterweight base. The positioning shaft penetrates through the inflatable airbag, and the bottom end of the positioning shaft is movably inserted into the positioning groove.

[0019] Preferably, a slot is formed inside the inflatable airbag, and wear-resistant rubber pads are fixedly installed inside both the activity groove and the slot.

[0020] Preferably, a hexagonal driving rod is fixedly connected to the bottom of the wire winding roller. The bottom end of the hexagonal driving rod penetrates through the equipment base. A hexagonal assembly groove is formed inside the driving stud, and the hexagonal driving rod is movably inserted into the hexagonal assembly groove.

[0021] Preferably, a stabilizing frame is fixedly welded to the outer surface of the fixed seat. The stabilizing frame includes an L-shaped hollow support column and an annular fixing ring. The annular fixing ring is fixedly welded to the outer surface of a plurality of L-shaped hollow support columns. An air storage groove is formed at the inner top of the L-shaped hollow support column, and the air storage groove is communicated with the inside of the retractable balloon.

[0022] Preferably, the retractable balloon includes a balloon seat and a rubber balloon body. The rubber balloon body is fixedly connected to the top of the balloon seat. The balloon seat is fixedly installed on the top of the L-shaped hollow support column. The rubber balloon body is communicated with the inside of the air storage groove through the balloon seat. A piston is slidably connected to the inside of the air storage groove. A return spring is arranged at the bottom of the piston. The end of the traction steel cable is fixedly connected to the lower surface of the piston.

[0023] The present invention discloses a submersible water flow velocity detection device for hydrogeological exploration, and its beneficial effects are as follows:

[0024] 1. For the submersible water flow velocity detection device for hydrogeological exploration, by setting the whole device in a conical shape and arranging weight filling materials at the inner bottom of the submerged counterweight base. During use, by vertically placing the device into the water, starting the servo motor and simultaneously opening the electromagnetic valve between the air compression tank and the inflatable airbag, the telescopic cover extends upward and expands while the inflatable airbag is inflated. And the servo motor also drives the wire winding roller to rotate clockwise to release the connecting rope. At this time, under the action of the spring, multiple retractable balloons are simultaneously filled, so that the density at the top end of the device rapidly decreases. At this time, under the buoyancy of the water, the device is lifted upward by the telescopic cover and multiple retractable balloons, so as to ensure that the device can effectively avoid large-amplitude shaking and flipping during water flow velocity detection at different depths, and thus ensure the normal development of water flow velocity detection work.

[0025] 2. In the initial state of the submersible water flow velocity detection device for hydrogeological exploration, the telescopic cover is sleeved on the outer surface of the submerged counterweight seat. At this time, the inflatable airbag is in a compressed state, and at the same time, multiple rubber balloon bodies are also in a compressed state. At this time, the reset spring is also in a compressed state. At this time, the device is vertically placed in water. At this time, the overall density of the device is greater than the density of water. Therefore, the device can completely sink into the water. Then, by starting the servo motor and the electromagnetic valve between the air compression tank and the inflatable airbag, the overall density of the device rapidly decreases at this time, making the overall density of the device less than the density of water, so that the top of the device can float on the water surface, facilitating the operator to recover the device.

[0026] 3. For the submersible water flow velocity detection device for hydrogeological exploration, by setting the submerged counterweight seat to a conical shape and installing multiple bottom-sinking stabilizing brackets on the side of its bottom end, when the device sinks to the bottom of the water, it can be supported by contacting the riverbed bottom through the bottom-sinking stabilizing brackets, effectively preventing the device from tipping over. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the overall outer surface structure of the present invention;

[0028] Figure 2 Schematic diagram of the overall top structure of the present invention;

[0029] Figure 3 Cross-sectional view of the internal structure of the submerged counterweight seat of the present invention;

[0030] Figure 4 Schematic diagram of the inner bottom structure of the telescopic cover of the present invention;

[0031] Figure 5 Cross-sectional view of the telescopic cover structure of the present invention;

[0032] Figure 6 Schematic diagram of the lower surface structure of the fixed seat of the present invention;

[0033] Figure 7 Cross-sectional view of the internal structure of the fixed seat of the present invention;

[0034] Figure 8 For the present invention Figure 7 Enlarged view of the structure of part A.

[0035] In the figure: 1. Submersible weight seat; 2. Telescopic cover; 3. Flow rate detector; 4. Sinking stable bracket; 5. Fixed seat; 6. Stabilizing frame; 601. L-shaped hollow pillar; 602. Annular fixing ring; 7. Check valve; 8. Weight packing; 9. Battery; 10. Servo motor; 11. Anti-slip ring; 12. Waterproof cover; 13. Driving stud; 14. Hexagonal assembly groove; 15. Positioning groove; 16. Inflatable airbag; 17 , movable groove; 18, slot; 19, positioning shaft; 20, sealing rubber ring; 21, sealing cover; 22, equipment seat; 23, air compression tank; 24, exhaust pipe; 25, wear-resistant rubber pad; 26, connecting groove; 27, hexagonal transmission rod; 28, retractable balloon; 281, ball seat; 282, rubber balloon body; 29, winding roller; 30, air storage tank; 31, piston; 32, return spring; 33, traction cable. DETAILED DESCRIPTION

[0036] The embodiment of the present invention discloses a submersible water flow velocity detection device for hydrogeological survey, such as Figures 1-8 As shown, it includes a flow velocity detector 3 and a submersible weight seat 1 installed at the bottom of the flow velocity detector 3 and capable of adjusting the overall density;

[0037] A flow velocity detector 3, the lower surface of which is fixedly connected to a fixing seat 5, and a plurality of shrinkable balloons 28 are provided in a ring shape on the side surface of the fixing seat 5;

[0038] A submersible counterweight seat 1, the outer surface of which is fixedly welded with a bottom-sinking stabilizing bracket 4, a servo motor 10 is arranged inside the submersible counterweight seat 1, a driving stud 13 is fixedly installed at the output end of the servo motor 10, a telescopic cover 2 that can move up and down is movably sleeved on the top outer surface of the submersible counterweight seat 1, the telescopic cover 2 is threadedly connected with the driving stud 13, an inflatable airbag 16 and an air compression tank 23 are arranged inside the telescopic cover 2, and the inflatable airbag 16 is connected to the inside of the air compression tank 23;

[0039] The fixed seat 5 is fixedly connected to the top of the telescopic cover 2. A rotatable winding roller 29 is arranged inside the fixed seat 5. The winding roller 29 is transmission connected to the driving stud 13. A plurality of traction cables 33 are wound around the outer surface of the winding roller 29. The traction cables 33 are transmission connected to the shrinkable balloon 28.

[0040] See attached Figures 3-4 A sealing rubber ring 20 is installed on the inner wall of the bottom end of the telescopic cover 2, and an anti-slip ring 11 is fixedly welded on the top of the submersible counterweight seat 1. The anti-slip ring 11 is slidably connected to the inside of the telescopic cover 2. A counterweight filler 8 is arranged inside the submersible counterweight seat 1. The sealing rubber ring 20 can effectively prevent water from entering the inside of the telescopic cover 2.

[0041] See attached Figure 3, inside the counterweight filler 8, there are multiple groups of storage batteries 9 fixedly installed. The servo motor 10 is arranged in the middle of the counterweight filler 8. The multiple groups of storage batteries 9 are distributed in a circular array on the side of the servo motor 10, and the storage batteries 9 are electrically connected to the servo motor 10. At the top of the counterweight filler 8, there is a waterproof cover plate 12 to prevent water from entering the inside of the counterweight filler 8 and damaging the electrical components. It should be particularly noted that the servo motor 10 is a forward and reverse motor.

[0042] Refer to the appendix Figures 4-5 , at the inner top of the telescopic cover 2, there is a sealing cover plate 21 fixedly welded. On the lower surface of the sealing cover plate 21, there is a device seat 22 fixedly installed. The air compression tank 23 is fixedly installed inside the device seat 22. At the top of the fixed seat 5, there is a one-way valve 7 fixedly installed. The inflatable airbag 16 is communicated with the inside of the one-way valve 7. At the top of the sealing cover plate 21, there is an exhaust pipe 24 fixedly installed. Inside the fixed seat 5, there is a connecting groove 26 opened. The exhaust pipe 24 is connected to the one-way valve 7 through the connecting groove 26. Solenoid valves are arranged between the inflatable airbag 16 and both the air compression tank 23 and the exhaust pipe 24. There is also a wireless communication module inside the fixed seat 5. When the device is in use, it communicates and controls the connection with the outside through the wireless communication module, so as to realize the control of the solenoid valves and the servo motor 10.

[0043] Refer to the appendix Figure 5 , inside the inflatable airbag 16, there is an activity groove 17 opened. The top end of the driving stud 13 penetrates through the activity groove 17 and the device seat 22, and the driving stud 13 is threadedly connected to the sealing cover plate 21. The lower surface of the device seat 22 is fixedly connected with a positioning shaft 19. Inside the submersible counterweight base 1, there is a positioning groove 15 opened. The positioning shaft 19 penetrates through the inflatable airbag 16, and the bottom end of the positioning shaft 19 is movably inserted into the inside of the positioning groove 15. Inside the inflatable airbag 16, there is a slot 18 opened. Wear-resistant rubber pads 25 are fixedly installed inside both the activity groove 17 and the slot 18. When the telescopic cover 2 moves up and down under the action of the driving stud 13, at the same time, the inflation and deflation of the gas inside the inflatable airbag 16 are realized. During the whole process, the wear-resistant rubber pads 25 can protect the inflatable airbag 16 from being damaged and prevent it from bursting.

[0044] Refer to the appendix Figure 3 , 6 , 7, at the bottom of the winding roller 29, there is a hexagonal transmission rod 27 fixedly connected. The bottom end of the hexagonal transmission rod 27 penetrates through the device seat 22. Inside the driving stud 13, there is a hexagonal assembly groove 14 opened. The hexagonal transmission rod 27 is movably inserted into the inside of the hexagonal assembly groove 14. As the telescopic cover 2 extends upward, the driving stud 13 rotates clockwise. At this time, the driving stud 13 drives the hexagonal transmission rod 27 to rotate clockwise. At the same time, the hexagonal transmission rod 27 moves upward inside the hexagonal assembly groove 14, so that the hexagonal transmission rod 27 drives the winding roller 29 to rotate clockwise. At this time, the traction steel cable 33 on the outer surface of the winding roller 29 is released.

[0045] Refer to the attached Figures 6-8 Figures 6-8 , a stabilizing frame 6 is fixedly welded to the outer surface of the fixed seat 5. The stabilizing frame 6 includes an L-shaped hollow pillar 601 and an annular fixing ring 602. The annular fixing ring 602 is fixedly welded to the outer surface of a plurality of L-shaped hollow pillars 601. An air storage tank 30 is provided at the inner top of the L-shaped hollow pillar 601. The air storage tank 30 is communicated with the inside of the retractable balloon 28. The retractable balloon 28 includes a balloon seat 281 and a rubber balloon body 282. The rubber balloon body 282 is fixedly connected to the top of the balloon seat 281. The balloon seat 281 is fixedly installed at the top of the L-shaped hollow pillar 601. The rubber balloon body 282 is communicated with the inside of the air storage tank 30 through the balloon seat 281. A piston 31 is slidably connected to the inside of the air storage tank 30. A return spring 32 is provided at the bottom of the piston 31. The end of the traction cable 33 is fixedly connected to the lower surface of the piston 31. The hexagonal drive rod 27 drives the wire winding roller 29 to rotate clockwise. At this time, the traction cable 33 on the outer surface of the wire winding roller 29 is released. At this time, under the action of the return spring 32, the piston 31 is pushed upward, so that the piston 31 pushes the air inside the air storage tank 30 upward into the inside of the retractable balloon 28, causing the rubber balloon body 282 to bulge. At this time, a plurality of retractable balloons 28 arranged in an annular array ensure the stability of the whole device from the top, effectively preventing the device from shaking greatly due to the action of water flow.

[0046] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention and in the form of embodiments.

[0047] Embodiment 1

[0048] As Figures 1-8 shown, a submersible water flow velocity detection device for hydrogeological exploration includes a flow velocity detector 3 and a submersible counterweight seat 1 installed at the bottom of the flow velocity detector 3 and capable of adjusting the overall density;

[0049] Flow velocity detector 3, a fixed seat 5 is fixedly connected to the lower surface of the flow velocity detector 3, and a plurality of retractable balloons 28 are annularly arranged on the side surface of the fixed seat 5;

[0050] Submersible counterweight seat 1, a bottom stabilizing bracket 4 is fixedly welded to the outer surface of the submersible counterweight seat 1. A servo motor 10 is provided inside the submersible counterweight seat 1. The output end of the servo motor 10 is fixedly installed with a driving stud 13. A vertically movable telescopic cover 2 is movably sleeved on the outer surface of the top end of the submersible counterweight seat 1. The telescopic cover 2 is threadedly connected to the driving stud 13. An inflatable airbag 16 and an air compression tank 23 are provided inside the telescopic cover 2. The inflatable airbag 16 is communicated with the inside of the air compression tank 23;

[0051] The fixed seat 5 is fixedly connected to the top of the telescopic cover 2. A rotatable wire winding roller 29 is arranged inside the fixed seat 5. The wire winding roller 29 is in transmission connection with the driving stud 13. Multiple groups of traction cables 33 are wound on the outer surface of the wire winding roller 29. The traction cables 33 are in transmission connection with the retractable balloon 28;

[0052] A sealing rubber ring 20 is installed on the inner wall at the bottom end of the telescopic cover 2. An anti - detachment ring 11 is fixedly welded to the top end of the submersible counterweight seat 1. The anti - detachment ring 11 is slidably connected inside the telescopic cover 2. A counterweight filler 8 is arranged inside the submersible counterweight seat 1. Multiple groups of storage batteries 9 are fixedly installed inside the counterweight filler 8. The servo motor 10 is arranged in the middle of the counterweight filler 8. The multiple groups of storage batteries 9 are distributed in an annular array on the side of the servo motor 10, and the storage batteries 9 are electrically connected to the servo motor 10. A waterproof cover plate 12 is arranged at the top of the counterweight filler 8. A sealing cover plate 21 is fixedly welded to the inner top of the telescopic cover 2. A device seat 22 is fixedly installed on the lower surface of the sealing cover plate 21. An air compression tank 23 is fixedly installed inside the device seat 22. A one - way valve 7 is fixedly installed on the top of the fixed seat 5. The inflatable airbag 16 is communicated with the inside of the one - way valve 7. An exhaust pipe 24 is fixedly installed on the top of the sealing cover plate 21. A connecting groove 26 is opened inside the fixed seat 5. The exhaust pipe 24 is connected to the one - way valve 7 through the connecting groove 26. Solenoid valves are arranged between the inflatable airbag 16 and the air compression tank 23 and the exhaust pipe 24 respectively. An activity groove 17 is opened inside the inflatable airbag 16. The top end of the driving stud 13 penetrates through the activity groove 17 and the device seat 22, and the driving stud 13 is threadedly connected to the sealing cover plate 21. A positioning shaft 19 is fixedly connected to the lower surface of the device seat 22. A positioning groove 15 is opened inside the submersible counterweight seat 1. The positioning shaft 19 penetrates through the inflatable airbag 16, and the bottom end of the positioning shaft 19 is movably inserted into the positioning groove 15. A slot 18 is opened inside the inflatable airbag 16. Wear - resistant rubber pads 25 are fixedly installed inside the activity groove 17 and the slot 18;

[0053] In the initial state of the device, the telescopic cover 2 is sleeved on the outer surface of the submersible counterweight seat 1. At this time, the inflatable airbag 16 is in a compressed state, and at the same time, the multiple rubber balloon bodies 282 are also in a compressed state. At this time, the reset spring 32 is also in a compressed state, and the traction cable 33 is wound on the outer surface of the wire winding roller 29. The top end of the driving stud 13 is inserted into the fixed seat 5. At this time, the hexagonal transmission rod 27 is inserted into the driving stud 13;

[0054] During use, the device is vertically placed in water. At this time, under the action of the submersible counterweight seat 1, the whole device sinks downward into the water. And because the overall center of gravity of the device is below, the possibility of the device tipping over when sinking in the water body can be effectively avoided. Eventually, the device sinks to the bottom of the water. At this time, the device is supported by the contact of the bottom stabilizing bracket 4 with the bottom of the riverbed, effectively preventing the device from tipping over. At this time, the flow velocity detector 3 is used to detect the flow velocity at the bottom of the water body and store the detected data;

[0055] Then, by starting the servo motor 10 and simultaneously opening the solenoid valve between the air compression tank 23 and the inflatable airbag 16, the servo motor 10 drives the driving stud 13 to rotate clockwise. At this time, the driving stud 13 spirally moves inside the sealing cover plate 21. At the same time, under the action of the two positioning shafts 19, the telescopic cover 2 and the submersible counterweight seat 1 cannot rotate relative to each other, causing the telescopic cover 2 to slide upward. At the same time, during this process, the inflatable airbag 16 gradually fills, so as to fill the inside of the telescopic cover 2, making the overall volume of the device increase finally, but the overall mass remains unchanged. Therefore, the overall density will decrease. At this time, under the buoyancy of the water body, the device floats upward. And during the upward floating process, the start time of the servo motor 10 and the solenoid valve between the air compression tank 23 and the inflatable airbag 16 can be controlled to determine the amount of the overall volume expansion of the device, so as to adjust the overall density of the device, facilitating hovering at an appropriate water depth to detect the water flow velocity at different depths;

[0056] At the same time, during the use of the device, when the device is at a certain height in the water body, the volume of the device can also be compressed by starting the reverse rotation of the servo motor 10 and simultaneously opening the solenoid valve between the inflatable airbag 16 and the exhaust pipe 24. At the same time, the air inside the inflatable airbag 16 is squeezed out and discharged outward through the one-way valve 7. During this process, the one-way valve 7 can effectively prevent water from flowing back into the inside of the inflatable airbag 16, finally increasing the overall density of the device, realizing the depth descent of the device, and realizing the adjustment at any depth in the water body.

[0057] Embodiment 2

[0058] Such as Figures 1-8The submersible water flow velocity detection device for hydrogeological survey shown, on the basis of Embodiment 1, further includes that a hexagonal drive rod 27 is fixedly connected to the bottom of a wire winding roller 29. The bottom end of the hexagonal drive rod 27 penetrates through a device base 22. A hexagonal assembly groove 14 is provided inside a drive stud 13. The hexagonal drive rod 27 is movably inserted into the hexagonal assembly groove 14. A stabilizing frame 6 is fixedly welded to the outer surface of a fixed seat 5. The stabilizing frame 6 includes an L-shaped hollow support column 601 and an annular fixing ring 602. The annular fixing ring 602 is fixedly welded to the outer surfaces of a plurality of L-shaped hollow support columns 601. An air storage tank 30 is provided at the inner top of the L-shaped hollow support column 601. The air storage tank 30 is communicated with the inside of a shrinkable balloon 28. The shrinkable balloon 28 includes a balloon seat 281 and a rubber balloon body 282. The rubber balloon body 282 is fixedly connected to the top of the balloon seat 281. The balloon seat 281 is fixedly installed on the top of the L-shaped hollow support column 601. The rubber balloon body 282 is communicated with the inside of the air storage tank 30 through the balloon seat 281. A piston 31 is slidably connected inside the air storage tank 30. A return spring 32 is provided at the bottom of the piston 31. One end of a traction steel cable 33 is fixedly connected to the lower surface of the piston 31;

[0059] Meanwhile, during the operation of the device in Embodiment 1, as the telescopic cover 2 extends upward, the drive stud 13 rotates clockwise. At this time, the drive stud 13 drives the hexagonal drive rod 27 to rotate clockwise. At the same time, the hexagonal drive rod 27 moves upward inside the hexagonal assembly groove 14, so that the hexagonal drive rod 27 drives the wire winding roller 29 to rotate clockwise. At this time, the traction steel cable 33 on the outer surface of the wire winding roller 29 is released. At this time, under the action of the return spring 32, the piston 31 is pushed upward, so that the piston 31 pushes the air inside the air storage tank 30 upward into the inside of the shrinkable balloon 28, making the rubber balloon body 282 bulge. At this time, a plurality of shrinkable balloons 28 arranged in an annular array ensure the stability of the whole device from the top, effectively preventing the device from shaking greatly due to the action of water flow;

[0060] When the device sinks, as the drive stud 13 rotates counterclockwise, the wire winding roller 29 will wind up the traction steel cable 33. At this time, the piston 31 is pulled downward, making a negative pressure formed inside the air storage tank 30. At this time, under the action of the external water pressure and the negative pressure inside the air storage tank 30, the air inside the rubber balloon body 282 is pressed into the inside of the air storage tank 30. At this time, the overall volume of the device decreases uniformly, so that the device can still maintain a stable descent when sinking;

[0061] Meanwhile, when the device floats upward, when the telescopic cover 2 is fully deployed, at this time, the anti-detachment ring 11 abuts against the inner bottom of the telescopic cover 2. At the same time, the inflatable airbag 16 is in a fully inflated state, and at the same time, a plurality of retractable balloons 28 are also in a fully inflated state. At this time, the overall density of the device is at the minimum value. At this time, under the buoyancy of water, the device quickly floats upward. At the same time, due to the structural characteristics of the device, the center of gravity is at the lower end and the density at the top is small. Therefore, the device can float vertically upward smoothly, and finally makes multiple groups of rubber balloon bodies 282 float on the water surface. At this time, it is convenient for the operator to recover the device.

[0062] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A submersible water flow velocity detection device for hydrogeological survey, characterized in that; It comprises a flow rate detector (3) and a submersible weight seat (1) installed at the bottom of the flow rate detector (3) and capable of adjusting the overall density; A flow velocity detector (3), wherein a fixing seat (5) is fixedly connected to the lower surface of the flow velocity detector (3), and a plurality of collapsible balloons (28) are provided in an annular shape on the side surface of the fixing seat (5); A submersible counterweight seat (1), wherein a bottom-sinking stabilizing bracket (4) is fixedly welded to the outer surface of the submersible counterweight seat (1), a servo motor (10) is arranged inside the submersible counterweight seat (1), a driving stud (13) is fixedly installed at the output end of the servo motor (10), a telescopic cover (2) that can move up and down is movably sleeved on the outer surface of the top end of the submersible counterweight seat (1), the telescopic cover (2) is threadedly connected to the driving stud (13), an inflatable airbag (16) and an air compression tank (23) are arranged inside the telescopic cover (2), and the inflatable airbag (16) is connected to the inside of the air compression tank (23); The fixing seat (5) is fixedly connected to the top of the telescopic cover (2), and a rotatable winding roller (29) is arranged inside the fixing seat (5), and the winding roller (29) is drivingly connected to the driving stud (13), and the outer surface of the winding roller (29) is wound with multiple groups of traction cables (33), and the traction cables (33) are drivingly connected to the shrinkable balloon (28); A sealing cover plate (21) is fixedly welded to the inner top of the telescopic cover (2), an equipment seat (22) is fixedly mounted on the lower surface of the sealing cover plate (21), the air compression tank (23) is fixedly mounted inside the equipment seat (22), a one-way valve (7) is fixedly mounted on the top of the fixed seat (5), and the inflatable airbag (16) is connected to the inside of the one-way valve (7); The bottom of the winding roller (29) is fixedly connected to a hexagonal transmission rod (27), the bottom end of the hexagonal transmission rod (27) passes through the equipment seat (22), the interior of the driving stud (13) is provided with a hexagonal assembly groove (14), and the hexagonal transmission rod (27) is movably inserted into the interior of the hexagonal assembly groove (14); A stabilizing frame (6) is fixedly welded to the outer surface of the fixing seat (5), the stabilizing frame (6) comprising an L-shaped hollow support (601) and an annular fixing ring (602), the annular fixing ring (602) being fixedly welded to the outer surfaces of a plurality of L-shaped hollow support pillars (601), an air storage tank (30) being provided at the inner top of the L-shaped hollow support pillar (601), the air storage tank (30) being in communication with the interior of the collapsible balloon (28); The retractable balloon (28) includes a balloon seat (281) and a rubber balloon body (282). The rubber balloon body (282) is fixedly connected to the top of the balloon seat (281). The balloon seat (281) is fixedly installed on the top of the L-shaped hollow support (601). The rubber balloon body (282) is communicated with the inside of the air storage tank (30) through the balloon seat (281). A piston (31) is slidably connected to the inside of the air storage tank (30). A return spring (32) is arranged at the bottom of the piston (31). The end of the traction cable (33) is fixedly connected to the lower surface of the piston (31).

2. The submersible water flow velocity detection device for hydrogeological survey according to claim 1, characterized in that: A sealing rubber ring (20) is installed on the inner wall of the bottom end of the telescopic cover (2). An anti-detachment ring (11) is fixedly welded to the top end of the underwater counterweight seat (1). The anti-detachment ring (11) is slidably connected to the inside of the telescopic cover (2). A counterweight filler (8) is arranged inside the underwater counterweight seat (1).

3. The submersible water flow velocity detection device for hydrogeological survey according to claim 2, characterized in that: A plurality of groups of storage batteries (9) are fixedly installed inside the counterweight filler (8). The servo motor (10) is arranged in the middle of the counterweight filler (8). The plurality of groups of storage batteries (9) are distributed in an annular array on the side of the servo motor (10), and the storage batteries (9) are electrically connected to the servo motor (10). A waterproof cover plate (12) is arranged on the top of the counterweight filler (8).

4. The submersible water flow velocity detection device for hydrogeological survey according to claim 3, characterized in that: An exhaust pipe (24) is fixedly installed on the top of the sealing cover plate (21). A connection groove (26) is formed inside the fixed seat (5). The exhaust pipe (24) is connected to the one-way valve (7) through the connection groove (26). Solenoid valves are arranged between the inflatable airbag (16) and the air compression tank (23) and the exhaust pipe (24).

5. The submersible water flow velocity detection device for hydrogeological survey according to claim 4, characterized in that: An activity groove (17) is formed inside the inflatable airbag (16). The top end of the driving stud (13) penetrates through the activity groove (17) and the equipment seat (22), and the driving stud (13) is threadedly connected to the sealing cover plate (21). A positioning shaft (19) is fixedly connected to the lower surface of the equipment seat (22). A positioning groove (15) is formed inside the underwater counterweight seat (1). The positioning shaft (19) penetrates through the inflatable airbag (16), and the bottom end of the positioning shaft (19) is movably inserted into the inside of the positioning groove (15).

6. The submersible water flow velocity detection device for hydrogeological survey according to claim 5, characterized in that: A slot (18) is formed inside the inflatable airbag (16). Wear-resistant rubber pads (25) are fixedly installed inside the activity groove (17) and the slot (18).

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