CN114545026A

CN114545026A - Underground water flow velocity multipoint detection device

Info

Publication number: CN114545026A
Application number: CN202210149726.6A
Authority: CN
Inventors: 殷国晶; 王志华; 李杭
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-05-27

Abstract

The invention relates to the technical field of underground water detection devices, in particular to an underground water flow velocity multipoint detection device which comprises a tubular pile, a group of lifting components are arranged beside the tubular pile, a group of angle adjusting components are arranged below the tubular pile, a group of driving components are arranged below the angle adjusting components, the invention can ensure that the plurality of groups of flow velocity measurement assemblies can be stably connected with the inner wall of the tubular pile under the action of the angle adjustment assembly, cannot shake under the action of groundwater and water flow, ensures the accuracy of a detection result, under the action of the plurality of groups of flow velocity measurement assemblies, the water quality of the underground water source is not adversely affected, and the test result is not influenced by environmental factors, and the dynamic change of the flow rate of the underground water in a period of time can be detected.

Description

Underground water flow velocity multipoint detection device

Technical Field

The invention relates to the technical field of underground water detection devices, in particular to an underground water flow velocity multipoint detection device.

Background

Under the seepage action, the underground water has great influence on hydrogeological conditions, engineering geological conditions, environmental geological conditions and the like, and the seepage of the underground water in the process of geological disasters such as landslide, debris flow, ground collapse and the like is very important; groundwater seepage also affects the geological conditions of the subsurface structures, piping leakage at the dam foundation, etc. In addition, the seepage action of underground water causes the migration of soil solutes, so the seepage of underground water is also of great significance to soil restoration and agricultural science, and is particularly important to the detection of the flow rate of underground water.

The conventional methods mainly comprise a pumping test method and a tracing method, the conventional pumping test method is not suitable for single-well monitoring and is time-consuming and labor-consuming, the tracing method comprises a radioactive isotope tracing method, a potential difference method, a thermal tracing method and the like, the potential difference method is to change the potential of underground water by injecting saline solution or distilled water and the like, a sensor is used for measuring the change of a potential field in time space so as to obtain the flow velocity and the flow direction of the underground water, radioactive substances required by the radioactive isotope tracing method can cause harm to human bodies and the environment, and the used tracing agent can perform physicochemical reactions such as ion exchange, adsorption, precipitation and the like with the underground water and rock-soil body based on the tracing method of the tracing agent to influence the measurement result; meanwhile, a tracer source throwing mechanism is not beneficial to realizing long-term automatic monitoring, the thermal tracing method has high requirements on the precision of the thermosensitive element, and along with the development of economic and technological levels, people put forward higher requirements on the measurement of the flow rate of underground water.

However, the existing devices for measuring the flow rate of groundwater still have the following problems:

(1) because the depth of underground water is usually deep, the tail end of the existing detection device is only fixed through a rope, and irregular shaking can occur under the action of underground water flow in the detection process of the flow rate of the underground water, so that the accuracy of a test result can be influenced;

(2) the existing detection device for the flow rate of the groundwater generally has adverse effects on the water quality of a groundwater source, and a test result is greatly influenced by environmental factors, so that the dynamic change of the flow rate of the groundwater within a period of time cannot be detected.

Disclosure of Invention

The present invention is directed to a device for detecting multiple points of flow velocity of underground water, so as to solve the above problems in the background art.

The technical scheme of the invention is as follows: the utility model provides an underground water velocity of flow multiple spot detection device which characterized in that: the pipe pile comprises a pipe pile, wherein a group of lifting assemblies are arranged beside the pipe pile, a group of angle adjusting assemblies are arranged below the pipe pile, a group of driving assemblies are arranged below the angle adjusting assemblies, and a plurality of groups of flow velocity measuring assemblies are arranged below the driving assemblies;

wherein, angular adjustment subassembly is including circular fixed cavity, many guide rails, a plurality of sliding block, many pressure spring and a plurality of slider, many the guide rail along circular fixed cavity's circumferencial direction interval sets up circular fixed cavity's top, every sliding block all with one the guide rail corresponds, every sliding block all with the guide rail sliding fit that corresponds, every sliding block all corresponds with a guide rail, every sliding block all sets up on the guide rail that corresponds, and every sliding block all through a pressure spring with be close to a sliding block fixed connection of sliding block, the top of every sliding block all is provided with a connecting rod, one side that pressure spring was kept away from to every sliding block all rotates and is connected with a fixed axle, a running roller of equal fixedly connected with on every fixed axle.

Further, the angular adjustment subassembly is still including first step motor, rolling disc, pivot and many catch bars, the vertical setting of first step motor is in the top of circular fixed cavity, the bottom of rolling disc with the output fixed connection of first step motor, the pivot sets up the top of rolling disc, just the pivot with the rolling disc is concentric setting, many the catch bar all along the circumferencial direction setting of rolling disc is in the bottom of rolling disc, every catch bar all with the rolling disc is articulated, every the catch bar all corresponds with a connecting rod, and one side that the rolling disc was kept away from to every catch bar all is articulated with the connecting rod that corresponds.

Furthermore, the rotating shaft is sleeved with a plurality of rotating wheels, each rotating wheel corresponds to one fixed shaft, and each rotating wheel is connected with the corresponding fixed shaft through a synchronous belt in a transmission mode.

Further, lifting unit is including rolling wheel, mount, leading wheel, cable rope and many fixed ropes, the rolling wheel sets up one side at tubular pile top, the mount sets up the top of tubular pile, the cable rope rotates to be connected on the mount, the end of cable rope is around establishing on the rolling wheel, the one end that the rolling wheel was kept away from to the cable rope is provided with a rotary joint, many fixed rope along rotary joint's circumferencial direction interval sets up in rotary joint's bottom, every fixed rope's bottom all with circular fixed cavity's top fixed connection.

Further, drive assembly is including second step motor, drive gear, a plurality of driven gear and a plurality of connecting axle, the inside of circular fixed cavity is the cavity form, the vertical setting of second step motor is in on the bottom inner wall of circular fixed cavity, drive gear cover is established on the output shaft of second step motor, a plurality of connecting axle intervals set up on the bottom inner wall of circular fixed cavity, and every connecting axle all with circular fixed cavity rotates to be connected, and every connecting axle all corresponds with a driven gear, and every driven gear all sets up at the top of the connecting axle that corresponds, every driven gear all through a set of gear train with drive gear transmission is connected.

Further, every group the velocity of flow measurement subassembly all includes cylindrical cavity, plastic ball, installation storehouse, two sets of baffles and two sets of parts that open and shut, cylindrical cavity sets up the bottom at a connecting axle, the inside of cylindrical cavity is the cavity form, and the circular through-hole has all been seted up to the both sides of cylindrical cavity, the plastic ball sets up the inside of cylindrical cavity, the installation storehouse sets up the bottom of cylindrical cavity, two sets of spouts have all been seted up on cylindrical cavity and the installation storehouse, and every group baffle all corresponds with a set of spout, and every group baffle all with the spout sliding fit that corresponds.

Further, every group part that opens and shuts all includes fixing base, waterproof motor, controller, sliding seat and rack, the fixing base sets up the bottom of installation storehouse inner wall, waterproof motor sets up the top at the fixing base, the vertical setting of sliding seat is in the side of waterproof motor, rack sliding connection is in on the sliding seat, be provided with a connection gear on the output of waterproof motor, connect gear and rack toothing, the top of rack with the bottom fixed connection of baffle.

Furthermore, a connecting column is arranged at the bottom of the circular fixed cavity, and a flow direction test plate is arranged at the bottom of the connecting column.

Furthermore, the one end that the spliced pole was kept away from to the flow direction is surveyed test panel and is provided with a gyroscope, all be provided with multiunit film pressure sensor on the both sides outer wall that the flow direction was surveyed test panel.

Furthermore, each group of baffle both sides all are provided with a pressure sensor, be provided with a time-recorder in the installation bin, film pressure sensor, pressure sensor and time-recorder all with controller electric connection.

The invention provides a multipoint detection device for the flow velocity of underground water by improvement, which has the following improvements and advantages compared with the prior art:

one is as follows: the invention can ensure that a plurality of groups of flow velocity measurement assemblies can be stably connected with the inner wall of the tubular pile under the action of the angle adjustment assembly, and cannot shake under the action of groundwater flow, thereby ensuring the accuracy of a detection result, in particular, a first step motor works to drive a rotating disc to rotate, the rotating disc can drive a pushing rod to move, the pushing rod continues to drive a connecting rod to move, thereby driving a plurality of slide blocks to move along a slide rail, along with the movement of the slide blocks, the sliding blocks can be driven to move through a compression spring, and then a plurality of groups of rollers are driven to move towards the inner wall of the tubular pile, so that the plurality of groups of rollers are all attached to the inner wall of the tubular pile, thereby fixing a plurality of groups of flow velocity measurement assemblies and a flow direction test plate below a circular fixed cavity, and cannot shake in the groundwater flow, so as to solve the problem that the conventional detection device proposed in the background technology can shake irregularly under the action of the groundwater flow, thereby affecting the accuracy of the test result.

The second step is as follows: the invention can not generate bad influence on the quality of underground water source under the action of a plurality of groups of flow velocity measuring components, the test result can not be influenced by environmental factors, and the dynamic change of the flow velocity of underground water in a period of time can be detected, in particular, when the cylindrical cavity is immersed in water, the cylindrical cavity can keep consistent with the flow direction of the underground water along with the flow direction of the flow direction test plate and the flow direction of the underground water, the measured flow velocity value of the underground water can be more accurate, a group of baffles close to the plastic ball body move downwards under the action of a second stepping motor and are separated from the plastic ball, the controller obtains the flow velocity of the underground water at the moment through calculation, the test process is not influenced by the change of the external environment, then the plurality of groups of cylindrical cavities rotate 180 degrees, the process is repeated, and the change of the flow velocity of the underground water in a period of time can be detected, the device solves the technical problems that the existing detection device for the flow rate of the groundwater, which is provided in the background technology, generally has adverse effects on the water quality of an underground water source, the test result is greatly affected by environmental factors, and the dynamic change of the flow rate of the groundwater within a period of time cannot be detected.

And thirdly: according to the invention, the rotary joint is arranged between the fixing rope and the cable rope, so that the cable rope cannot be curled when the circular fixing cavity rotates, and the service life of the device is prolonged.

Fourthly, the method comprises the following steps: according to the invention, the first stepping motor works to drive the rotating disc to rotate, the rotating disc can drive the pushing rods to move, the pushing rods continue to drive the connecting rods to move, and then drive the plurality of sliding blocks to move along the sliding rails, along with the movement of the sliding blocks, the sliding blocks can be driven to move through the compression springs, and then the plurality of groups of rollers are driven to move towards the inner wall of the tubular pile, so that the plurality of groups of rollers are all attached to the inner wall of the tubular pile, at the moment, synchronous belts between the rotating wheels and the corresponding fixed shafts can be tensioned, and therefore the plurality of groups of rollers are driven to rotate, and when the flow velocity measuring assembly can be stably fixed in the tubular pile, the flow direction testing plate can be driven to rotate in underground water.

And fifthly: according to the invention, under the action of the compression spring, the rollers can be always attached to the inner wall of the tubular pile within a certain angle range of the rotating disc, at the moment, the distance between each roller and the corresponding fixed shaft cannot be changed, and the rollers can be continuously driven to rotate under the action of the synchronous belt, so that the flow direction test board below the circular fixed cavity can be driven to rotate in underground water and keep stable, the test result accuracy is not influenced by the shaking of water flow, and when the test is finished, the rotating disc continuously rotates, so that the sliding blocks move towards the rotating disc, and the rollers are retracted, and the device can be smoothly recovered.

And the sixth step: according to the underground water flow detection device, the roller rotates to drive the flow direction test plate to rotate in underground water, when the controller detects that the numerical values of the multiple groups of thin film pressure sensors on the outer walls of the two sides of the flow direction test plate are at the lowest value, the rotation is stopped, the direction of the flow direction test plate is consistent with the flow direction of the underground water, the controller records data on the gyroscope on the flow direction test plate at the moment, further the flow direction data of the underground water are obtained, when the flow angle of the underground water changes, the roller continues to drive the flow direction test plate, and the angle change range of the flow direction of the underground water can be detected.

Drawings

The invention is further explained below with reference to the figures and examples:

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic cross-sectional perspective view of the present invention;

FIG. 3 is a schematic perspective view of a portion of the lift assembly of the present invention;

FIG. 4 is a perspective view of the angle adjustment assembly of the present invention;

FIG. 5 is an enlarged view at A in FIG. 4;

FIG. 6 is an enlarged view at B in FIG. 4;

FIG. 7 is a schematic perspective view of a portion of the angle adjustment assembly of the present invention;

FIG. 8 is an enlarged view at C of FIG. 7;

FIG. 9 is a schematic cross-sectional perspective view of the drive assembly of the present invention;

FIG. 10 is an enlarged view at D of FIG. 9;

FIG. 11 is a schematic perspective view of a flow rate measuring assembly according to the present invention;

FIG. 12 is a schematic cross-sectional perspective view of a flow rate measurement assembly according to the present invention;

fig. 13 is an enlarged view of fig. 12 at E.

Description of the reference numerals: 1. a winding wheel; 2. an electrical cable; 3. a fixed mount; 4. a guide wheel; 5. a tubular pile; 6. a rotary joint; 7. fixing a rope; 8. a circular fixed cavity; 9. a first step motor; 11. installing a bin; 12. a cylindrical cavity; 13. a guide rail; 14. rotating the disc; 15. a connecting rod; 16. a push rod; 17. a synchronous belt; 18. a rotating shaft; 19. a rotating wheel; 20. a roller; 21. a fixed shaft; 22. a slider; 23. a compression spring; 24. a slider; 25. a connecting shaft; 26. a driven gear; 27. a gear set; 28. connecting columns; 29. a flow direction test plate; 30. a second stepping motor; 31. a drive gear; 32. a baffle plate; 33. a pressure sensor; 34. a plastic sphere; 35. a circular through hole; 36. a fixed seat; 37. a waterproof motor; 38. a connecting gear; 39. a sliding seat; 40. a rack; 41. a chute.

Detailed Description

The present invention is described in detail below, and technical solutions in the embodiments of the present invention are clearly and completely described, 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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The first embodiment is as follows:

the invention provides an underground water flow velocity multipoint detection device through improvement, which comprises a tubular pile 5, wherein a group of lifting assemblies are arranged beside the tubular pile 5, a group of angle adjusting assemblies are arranged below the tubular pile 5, a group of driving assemblies are arranged below the angle adjusting assemblies, and a plurality of groups of flow velocity measuring assemblies are arranged below the driving assemblies;

wherein, the angle adjusting component comprises a circular fixed cavity 8, a plurality of guide rails 13, a plurality of sliding blocks 22, a plurality of compression springs 23 and a plurality of sliding blocks 24, the plurality of guide rails 13 are arranged at the top of the circular fixed cavity 8 along the circumferential direction of the circular fixed cavity 8 at intervals, each sliding block 22 corresponds to one guide rail 13, each sliding block 22 is in sliding fit with the corresponding guide rail 13, each sliding block 24 corresponds to one guide rail 13, each sliding block 24 is arranged on the corresponding guide rail 13, each sliding block 24 is fixedly connected with a sliding block 22 close to the sliding block 24 through a compression spring 23, the top of each sliding block 24 is provided with a connecting rod 15, one side of each sliding block 22 far away from the compression spring 23 is rotatably connected with a fixed shaft 21, and each fixed shaft 21 is fixedly connected with a roller 20; the user puts into tubular pile 5 that drills in advance with this device to adjust the length of hawser 2 through lifting unit, make the multiunit velocity of flow measurement of circular fixed cavity 8 below subassembly submerge in the groundwater, at this moment, a plurality of running rollers 20 still are in tubular pile 5.

Specifically, the angle adjustment assembly further comprises a first stepping motor 9, a rotating disc 14, a rotating shaft 18 and a plurality of pushing rods 16, wherein the first stepping motor 9 is vertically arranged at the top of the circular fixed cavity 8, the bottom of the rotating disc 14 is fixedly connected with the output end of the first stepping motor 9, the rotating shaft 18 is arranged at the top of the rotating disc 14, the rotating shaft 18 and the rotating disc 14 are concentrically arranged, the pushing rods 16 are arranged at the bottom of the rotating disc 14 along the circumferential direction of the rotating disc 14, each pushing rod 16 is hinged to the rotating disc 14, each pushing rod 16 corresponds to one connecting rod 15, one side, away from the rotating disc 14, of each pushing rod 16 is hinged to the corresponding connecting rod 15, a plurality of rotating wheels 19 are sleeved on the rotating shaft 18, each rotating wheel 19 corresponds to one fixed shaft 21, each rotating wheel 19 is in transmission connection with the corresponding fixed shaft 21 through a synchronous belt 17; the first stepping motor 9 works to drive the rotating disc 14 to rotate, the rotating disc 14 can drive the pushing rod 16 to move, the pushing rod 16 continues to drive the connecting rod 15 to move, and then drives the plurality of sliders 24 to move along the sliding rails, along with the movement of the sliders 24, the sliders 22 can be driven to move through the compression springs 23, and then the plurality of sets of rollers 20 are driven to move towards the inner wall of the tubular pile 5, so that the plurality of sets of rollers 20 are all attached to the inner wall of the tubular pile 5, at the moment, the synchronous belts 17 between the rotating wheels 19 and the corresponding fixed shafts 21 can be tensioned, so as to drive the plurality of sets of rollers 20 to rotate, and further drive the circular fixed cavity 8 to start rotating along the inner wall of the tubular pile 5, under the action of the compression springs 23, the rollers 20 can be always attached to the inner wall of the tubular pile 5 within a certain angle range when the rotating disc 14 rotates, at the moment, the distance between the rotating wheels 19 and the corresponding fixed shafts 21 cannot change, under the effect of hold-in range 17, can continue to drive running roller 20 and rotate to the flow direction of the circular fixed cavity 8 below of drive surveys test panel 29 and can remain stable in the groundwater pivoted, does not take place to rock along with rivers, and influences the accuracy of test result, and when the test was ended, rolling disc 14 continues to rotate, makes a plurality of sliding blocks 22 remove to rolling disc 14's direction, withdraws a plurality of running rollers 20, thereby can retrieve this device smoothly.

Specifically, the lifting assembly comprises a winding wheel 1, a fixing frame 3, a guide wheel 4, an electric cable 2 and a plurality of fixing ropes 7, wherein the winding wheel 1 is arranged on one side of the top of the tubular pile 5, the fixing frame 3 is arranged on the top of the tubular pile 5, the electric cable 2 is rotatably connected to the fixing frame 3, the tail end of the electric cable 2 is wound on the winding wheel 1, one end, far away from the winding wheel 1, of the electric cable 2 is provided with a rotary joint 6, the plurality of fixing ropes 7 are arranged at the bottom of the rotary joint 6 at intervals along the circumferential direction of the rotary joint 6, and the bottom of each fixing rope 7 is fixedly connected with the top of the circular fixing cavity 8; wind-up wheel 1 rotates, can be according to the different length of adjusting cable rope 2 of groundwater depth, sets up rotary joint 6 between fixed rope 7 and cable rope 2 and make circular fixed cavity 8 not can the cable rope 2 that can make when rotating take place to curl to prolong the life of this device.

Specifically, the driving assembly includes a second stepping motor 30, a driving gear 31, a plurality of driven gears 26 and a plurality of connecting shafts 25, the interior of the circular fixed cavity 8 is hollow, the second stepping motor 30 is vertically arranged on the inner wall of the bottom of the circular fixed cavity 8, the driving gear 31 is sleeved on the output shaft of the second stepping motor 30, the connecting shafts 25 are arranged on the inner wall of the bottom of the circular fixed cavity 8 at intervals, each connecting shaft 25 is rotatably connected with the circular fixed cavity 8, each connecting shaft 25 corresponds to one driven gear 26, each driven gear 26 is arranged at the top of the corresponding connecting shaft 25, and each driven gear 26 is in transmission connection with the driving gear 31 through a group of gear sets 27; the second stepping motor 30 drives the driving gear 31 to rotate, and the driving gear 31 can drive the driven gear 26 to rotate under the transmission action of the gear set 27, so as to drive the connecting shaft 25 to rotate, so that the connecting shaft 25 drives the cylindrical cavity 12 at the bottom of the connecting shaft 25 to rotate when rotating.

Specifically, each group of flow velocity measurement assemblies includes a cylindrical cavity 12, a plastic sphere 34, an installation bin 11, two groups of baffles 32 and two groups of opening and closing components, the cylindrical cavity 12 is arranged at the bottom of one connecting shaft 25, the inside of the cylindrical cavity 12 is hollow, circular through holes 35 are formed in two sides of the cylindrical cavity 12, the plastic sphere 34 is arranged inside the cylindrical cavity 12, the installation bin 11 is arranged at the bottom of the cylindrical cavity 12, two groups of sliding grooves 41 are formed in the cylindrical cavity 12 and the installation bin 11, each group of baffles 32 corresponds to one group of sliding grooves 41, and each group of baffles 32 is in sliding fit with the corresponding sliding groove 41; after each group of flow velocity measurement assemblies are immersed in underground water, the first stepping motor works to drive the plurality of groups of flow velocity measurement assemblies to rotate, and the rotation is stopped when the flow direction of the underground water and the cylindrical cavity 12 are in the same direction.

Specifically, each group of opening and closing components comprises a fixed seat 36, a waterproof motor 37, a controller, a sliding seat 39 and a rack 40, wherein the fixed seat 36 is arranged at the bottom of the inner wall of the installation bin 11, the waterproof motor 37 is arranged at the top of the fixed seat 36, the sliding seat 39 is vertically arranged at the side of the waterproof motor 37, the rack 40 is connected to the sliding seat 39 in a sliding manner, a connecting gear 38 is arranged at the output end of the waterproof motor 37, the connecting gear 38 is meshed with the rack 40, and the top of the rack 40 is fixedly connected with the bottom of the baffle 32; the waterproof motor 37 works to drive the connecting gear 38 to rotate, the connecting gear 38 rotates to further drive the rack 40 to move along the direction of the sliding seat 39, and then the two groups of baffles 32 are driven to move in the vertical direction, so that the movement of the plastic ball 34 in the underground water is adjusted.

Specifically, a connecting column 28 is arranged at the bottom of the circular fixing cavity 8, and a flow direction test board 29 is arranged at the bottom of the connecting column 28; the flow direction test plate 29 is used to effectively measure the flow direction of groundwater.

Specifically, one end of the flow direction test board 29, which is far away from the connecting column 28, is provided with a gyroscope, and the outer walls of the two sides of the flow direction test board 29 are provided with a plurality of groups of thin film pressure sensors; running roller 20 rotates and to drive the flow direction and survey test panel 29 and rotate in groundwater, and the numerical value that detects the flow direction and survey test panel 29 both sides outer wall on multiunit film force sensor stops rotating when being in the minimum, and the flow direction of surveying test panel 29 and the flow direction of groundwater are unanimous this moment, and the data on the gyroscope on the panel 29 is surveyed in the flow direction this moment to the controller record, and then reachs the flow direction data of groundwater.

Specifically, two sides of each group of baffles 32 are respectively provided with a pressure sensor 33, a timer is arranged in the mounting bin 11, and the film pressure sensors, the pressure sensors 33 and the timer are electrically connected with a controller; the initial angle of each group of cylindrical cavities 12 is parallel to the flow direction test board 29, after the cylindrical cavities 12 are immersed in water, the flow direction of the cylindrical cavities 12 is consistent with that of underground water along with the flow direction test board 29, the cylindrical cavities 12 can also keep consistent with that of the underground water, the measured flow velocity value of the underground water can be more accurate, one group of baffle plates 32 close to the plastic balls 34 move downwards under the action of the waterproof motor 37 and are separated from the plastic balls, the timer starts to time, the plastic balls can move along the cylindrical cavities 12 under the action of water flow, when the plastic balls collide with the pressure sensor 33 on the other group of baffle plates 32, the time is stopped, the time t for the timer to record the movement of the plastic balls is recorded, the movement distance of the plastic balls is the distance s between the two groups of baffle plates 32 all the time, and the controller obtains the initial angle according to V ═ s

t

The flow velocity V of groundwater in time, then the cylindrical cavities 12 rotate 180 degrees, and the process is repeated, so that the change of the flow velocity of groundwater in a period of time can be detected; the model of the controller is SPC-STW-1810, the model of the film pressure sensor is FSR-A406, the model of the pressure sensor 33 is LFC-50, and the model of the timer is LMC555 CTP/NOPB.

The working principle is as follows: a user puts the device into a pre-drilled tubular pile 5, and adjusts the length of the cable rope 2 through the rotation of the winding wheel 1, so that a plurality of groups of flow velocity measurement assemblies below the circular fixed cavity 8 are immersed into underground water, and at the moment, a plurality of rollers 20 are still positioned in the tubular pile 5;

the rotary joint 6 is arranged between the fixed rope 7 and the cable rope 2, so that the cable rope 2 cannot be curled when the circular fixed cavity 8 rotates, and the service life of the device is prolonged;

the first stepping motor 9 works to drive the rotating disc 14 to rotate, the rotating disc 14 can drive the pushing rod 16 to move, the pushing rod 16 continues to drive the connecting rod 15 to move, and then drives the plurality of sliding blocks 24 to move along the sliding rails, along with the movement of the sliding blocks 24, the sliding blocks 22 can be driven to move through the compression springs 23, and then the plurality of groups of rollers 20 are driven to move towards the inner wall of the tubular pile 5, so that the plurality of groups of rollers 20 are all attached to the inner wall of the tubular pile 5, at the moment, the synchronous belts 17 between the rotating wheels 19 and the corresponding fixed shafts 21 can be tensioned, so that the plurality of groups of rollers 20 are driven to rotate, and further the circular fixed cavity 8 is driven to start to rotate along the inner wall of the tubular pile 5;

under the action of the compression spring 23, the roller 20 can be always attached to the inner wall of the tubular pile 5 within a certain angle range when the rotating disc 14 rotates, at the moment, the distance between the rotating wheel 19 and the corresponding fixed shaft 21 cannot be changed, and the roller 20 can be continuously driven to rotate under the action of the synchronous belt 17, so that the flow direction test board 29 below the circular fixed cavity 8 can be driven to rotate in underground water and keep stable, the test result accuracy is not influenced due to the fact that the test board does not shake along with water flow, when the test is finished, the rotating disc 14 continuously rotates, the sliding blocks 22 can move towards the rotating disc 14, the roller 20 can be withdrawn, and the device can be smoothly recovered;

the running roller 20 rotates to drive the flow direction test board 29 to rotate in the groundwater, the controller stops rotating when detecting that the numerical values of a plurality of groups of thin film pressure sensors on the outer walls of the two sides of the flow direction test board 29 are at the lowest value, the direction of the flow direction test board 29 is consistent with the flow direction of the groundwater, the controller records data on a gyroscope on the flow direction test board 29 at the moment, further flow direction data of the groundwater are obtained, when the flow angle of the groundwater changes, the running roller 20 continues to drive the flow direction test board 29, and the angle change range of the groundwater in the flow direction can be detected;

the initial angle of every group of cylindrical cavity 12 all parallels with flow direction test board 29, after cylindrical cavity 12 submerges, along with flow direction test board 29 is unanimous with the flow direction of groundwater, cylindrical cavity 12 also can keep unanimous with the flow direction of groundwater, the velocity of flow value of groundwater that obtains of measurement this moment can be more accurate, a set of baffle 32 that is close to plastic ball 34 moves down under waterproof motor 37's effect, break away from with the plastic ball, the time-recorder begins the timing, later the plastic ball can be along cylindrical cavity 12 motion under the effect of rivers, when the plastic ball strikes the pressure sensors 33 on another group of baffle 32, the timing stops, the motion time t of plastic ball is recorded to the time-recorder, because the motion distance of plastic ball is interval s between two sets of baffles 32 all the time, the controller is according to the interval s between two sets of baffle 32 all the time, according to the controller

The flow velocity V of groundwater is obtained at the moment, then the cylindrical cavities 12 rotate 180 degrees, and the process is repeated, so that the change of the flow velocity of groundwater in a period of time can be detected.

The above-mentioned embodiments only express one embodiment of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides an underground water velocity of flow multiple spot detection device which characterized in that: the pipe pile comprises a pipe pile (5), wherein a group of lifting assemblies are arranged beside the pipe pile (5), a group of angle adjusting assemblies are arranged below the pipe pile (5), a group of driving assemblies are arranged below the angle adjusting assemblies, and a plurality of groups of flow velocity measuring assemblies are arranged below the driving assemblies;

wherein, angle adjustment subassembly is including circular fixed cavity (8), many guide rails (13), a plurality of sliding block (22), many pressure spring (23) and a plurality of slider (24), many guide rail (13) are along the circumferencial direction interval of circular fixed cavity (8) sets up the top of circular fixed cavity (8), every sliding block (22) all with one guide rail (13) correspond, every sliding block (22) all with corresponding guide rail (13) sliding fit, every sliding block (24) all corresponds with a guide rail (13), every sliding block (24) all sets up on corresponding guide rail (13), and every sliding block (24) all through a pressure spring (23) with a sliding block (22) fixed connection who is close to sliding block (24), the top of every sliding block (24) all is provided with a connecting rod (15), one side that every sliding block (22) kept away from pressure spring (23) all is connected with a fixed axle (21) And each fixed shaft (21) is fixedly connected with a roller (20).

2. The device of claim 1, wherein: the angle adjusting component also comprises a first stepping motor (9), a rotating disc (14), a rotating shaft (18) and a plurality of push rods (16), the first stepping motor (9) is vertically arranged at the top of the circular fixed cavity (8), the bottom of the rotating disc (14) is fixedly connected with the output end of the first stepping motor (9), the rotating shaft (18) is arranged at the top of the rotating disc (14), and pivot (18) with rolling disc (14) are the concentric setting, many catch bar (16) all along the circumferencial direction of rolling disc (14) sets up the bottom of rolling disc (14), every catch bar (16) all with rolling disc (14) are articulated, every catch bar (16) all correspond with a connecting rod (15), and one side that rolling disc (14) were kept away from to every catch bar (16) all is articulated with corresponding connecting rod (15).

3. The device of claim 2, wherein: the rotating shaft (18) is sleeved with a plurality of rotating wheels (19), each rotating wheel (19) corresponds to one fixed shaft (21), and each rotating wheel (19) is in transmission connection with the corresponding fixed shaft (21) through a synchronous belt (17).

4. The device of claim 1, wherein: lifting unit is including rolling wheel (1), mount (3), leading wheel (4), cable rope (2) and many fixed rope (7), rolling wheel (1) sets up one side at tubular pile (5) top, mount (3) set up the top of tubular pile (5), electric cable rope (2) rotate to be connected on mount (3), the end of electric cable rope (2) is around establishing on rolling wheel (1), the one end that rolling wheel (1) was kept away from in electric cable rope (2) is provided with a rotary joint (6), many fixed rope (7) along the circumferencial direction interval of rotary joint (6) sets up in the bottom of rotary joint (6), every the bottom of fixed rope (7) all with the top fixed connection of circular fixed cavity (8).

5. The device of claim 1, wherein: the driving component comprises a second stepping motor (30), a driving gear (31), a plurality of driven gears (26) and a plurality of connecting shafts (25), the interior of the circular fixed cavity (8) is hollow, the second stepping motor (30) is vertically arranged on the inner wall of the bottom of the circular fixed cavity (8), the driving gear (31) is sleeved on an output shaft of the second stepping motor (30), a plurality of connecting shafts (25) are arranged on the inner wall of the bottom of the circular fixed cavity (8) at intervals, and every connecting axle (25) all with circular fixed cavity (8) rotate to be connected, every connecting axle (25) all corresponds with a driven gear (26), and every driven gear (26) all sets up the top at corresponding connecting axle (25), every driven gear (26) all through a set of gear train (27) with drive gear (31) transmission is connected.

6. The device of claim 5, wherein: every group the velocity of flow measurement subassembly all includes cylindrical cavity (12), plastics spheroid (34), installation storehouse (11), two sets of baffle (32) and two sets of parts that open and shut, cylindrical cavity (12) set up the bottom at a connecting axle (25), the inside of cylindrical cavity (12) is the cavity form, and circular through-hole (35) have all been seted up to the both sides of cylindrical cavity (12), plastics spheroid (34) set up the inside of cylindrical cavity (12), installation storehouse (11) set up the bottom of cylindrical cavity (12), two sets of spout (41) have all been seted up on cylindrical cavity (12) and installation storehouse (11), and every group baffle (32) all correspond with a set of spout (41), and every group baffle (32) all with corresponding spout (41) sliding fit.

7. The device of claim 6, wherein: every group's part that opens and shuts all includes fixing base (36), waterproof motor (37), controller, sliding seat (39) and rack (40), fixing base (36) set up the bottom of installation storehouse (11) inner wall, waterproof motor (37) set up the top at fixing base (36), sliding seat (39) are vertical to be set up the side of waterproof motor (37), rack (40) sliding connection be in on sliding seat (39), be provided with one on the output of waterproof motor (37) and connect gear (38), connect gear (38) and rack (40) meshing, the top of rack (40) with the bottom fixed connection of baffle (32).

8. The device of claim 7, wherein: the bottom of the round fixed cavity (8) is provided with a connecting column (28), and the bottom of the connecting column (28) is provided with a flow direction test board (29).

9. The device of claim 8, wherein: the one end that spliced pole (28) was kept away from in flow direction survey test board (29) is provided with a gyroscope, all be provided with multiunit film force transducer on the flow direction survey test board's (29) both sides outer wall.

10. The device of claim 9, wherein: and each group of baffles (32) is provided with a pressure sensor (33) on two sides, a timer is arranged in the mounting bin (11), and the film pressure sensor, the pressure sensors (33) and the timer are electrically connected with the controller.