CN217033523U

CN217033523U - Groundwater permeability coefficient detection device

Info

Publication number: CN217033523U
Application number: CN202122621275.5U
Authority: CN
Inventors: 张旭; 郑悦; 常林祯; 刘普峰; 刘和民; 齐淑洁
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-07-22
Anticipated expiration: 2031-10-29

Abstract

The utility model belongs to the technical field of underground water permeability coefficient detection, and particularly relates to an underground water permeability coefficient detection device which aims at the problems that an existing detection device is inconvenient to use and single in function, can only perform detection on one size at a time, and is inconvenient to change the depth of a transparent plastic cylinder for loading a detection material. The utility model has convenient use, can detect the water permeability of different areas, is convenient to change the depth of the transparent plastic cylinder for loading the measuring material and has flexible use.

Description

Groundwater permeability coefficient detection device

Technical Field

The utility model relates to the technical field of underground water permeability coefficient detection, in particular to an underground water permeability coefficient detection device.

Background

The groundwater pumping test is to obtain relevant hydrogeological parameters such as permeability coefficient, water conductivity coefficient, pressure conductivity coefficient, water supply degree or elastic water release coefficient, overflow coefficient, influence radius and the like through a field pumping test in groundwater development and utilization. At present, underground water pumping tests are important technical means in the field of underground water environment research, and more attention is paid. There are various methods for measuring the permeability of groundwater, and there are many kinds of instruments and test methods for measuring the permeability coefficient k in a laboratory, but the methods can be roughly classified into a normal head method and a variable head method in terms of test principles.

The constant head test method is to keep the head constant throughout the test, so that the head difference is also constant.

During the test, a saturated sample with the section of A and the length of L is filled in a transparent plastic cylinder, and a water valve is opened to enable water to flow through the sample from top to bottom and be discharged from a water outlet. After the water head difference delta h and the seepage flow Q are stable, measuring the water quantity V flowing through the sample within a certain time t, and then

V＝Q*t＝ν*A*t

According to Darcy's law, v ═ k ═ i, then

V＝k*(△h/L)*A*t

Thereby obtaining

k＝q*L/A*△h＝Q*L/(A*△h)

As another example, publication (bulletin) No.: CN102410977B relates to an groundwater permeability coefficient testing arrangement, belongs to the hydraulic engineering field, and its IPC international patent classification number is E02B 1/00. The testing device comprises an operation control system, a water level sensor, a flow sensor, an online monitoring control device, a data acquisition system and a water pumping pump, wherein the water pumping pump is arranged below the water level sensor, and the flow sensor is connected with the water pumping pump through a system connecting valve. When the test is carried out, the water pumping pump is started, the underground water online water level sensor and the water pump water outlet flow sensor are started simultaneously, the data acquisition system can automatically record the real-time water level and water quantity, the water pumping quantity of the water pump and the corresponding underground water level depth lowering data are obtained, and therefore hydrogeological parameters such as the permeability coefficient of the corresponding aquifer can be calculated.

The existing measuring device is inconvenient to use and single in function, can only test one size at a time, and is inconvenient to change the depth of a transparent plastic cylinder for loading measuring materials.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that the existing measuring device is inconvenient to use and single in function, can only test one size at a time, and is inconvenient to change the depth of a transparent plastic cylinder for loading measuring materials, and the underground water permeability coefficient detecting device is provided.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an underground water permeability coefficient detection device, comprising a base plate, the stand is installed at the top of bottom plate, the electronic timer is installed in the outside of stand, rotary mechanism is installed at the top of stand, the last water storage section of thick bamboo that is connected with of rotary mechanism, the discharge conduit is installed in the outside of water storage section of thick bamboo, the filling opening is installed at the top of water storage section of thick bamboo, be provided with the valve on the discharge conduit, two are installed and are placed the dish at the top of bottom plate, it all is provided with the fixed unit of elasticity in the dish to place for two, a transparent plastic cylinder has all been placed in two are placed the dish, the size of two transparent plastic cylinders is different, all be provided with separation net mechanism in two transparent plastic cylinders, the outside of two transparent plastic cylinders all is provided with the drain pipe, the liquid collecting box has been placed at the top of bottom plate.

Preferably, rotary mechanism includes rotary disk, two springs, two trapezoidal pieces, and the swivelling chute has been seted up to the bottom of rotary disk, and the stand rotates with the swivelling chute to be connected, and two spring grooves have been seted up to the symmetry on the inner wall of swivelling chute, and trapezoidal piece and the spring groove sliding connection that corresponds, the one end of spring links to each other with the trapezoidal piece, and the other end of spring links to each other with the inner wall in spring groove, and a plurality of two-way draw-in grooves have evenly been seted up in the outside of stand, and trapezoidal piece and two-way joint of two-way draw-in groove.

Preferably, the top end of the upright post is provided with a bearing, and the outer ring of the bearing is connected with the inner wall of the rotating groove.

Preferably, the elastic fixing unit comprises two pressure springs and arc-shaped plates, the two arc-shaped plates are symmetrically arranged in the placing disc, and the plurality of pressure springs are arranged between the arc-shaped plates and the inner wall of the placing disc.

Preferably, the isolation net mechanism comprises a placing net, a support rod, a T-shaped rod and a bolt, the support rod is installed on the inner wall of the corresponding transparent plastic cylinder, the T-shaped rod is installed on the support rod in a sliding mode, the bottom end of the T-shaped rod is connected with the top of the placing net, the bolt is connected to the outer side of the support rod in a threaded mode, and the end of the bolt is matched with the T-shaped rod.

Preferably, the outside of the liquid collecting box is provided with a first scale mark, and the outside of the water storage cylinder is provided with a second scale mark.

Preferably, the top of the bottom plate is provided with a circular groove, and the liquid collecting box is movably connected with the circular groove.

Compared with the prior art, the utility model has the advantages that:

according to the scheme, the underground water in the water cylinder flows into the transparent plastic cylinder through the water flowing pipe, the underground water permeates into the bottom of the transparent plastic cylinder through the measuring material and is discharged into the liquid collecting box through the water discharging pipe, so that the permeated underground water can be collected, and the detection on the permeability of the underground water is facilitated through calculation;

the bolt is loosened to this scheme, can adjust the height of T type pole, can adjust the height that the survey material bore, simultaneously because the size of two transparent plastic section of thick bamboo is different, can detect to the infiltration rate of different areas, and convenient to use, convenient contrast detects, and two transparent plastic section of thick bamboo can conveniently take out cleanly, use in a flexible way.

The utility model has convenient use, can detect the water permeability of different areas, is convenient to change the depth of the transparent plastic cylinder for loading the measuring material and has flexible use.

Drawings

Fig. 1 is a schematic structural diagram of an underground water permeability coefficient detection device according to the present invention;

fig. 2 is a schematic cross-sectional structural diagram of an underground water permeability coefficient detection device according to the present invention;

FIG. 3 is a schematic view of a portion A of FIG. 2 according to the present invention;

FIG. 4 is a schematic structural diagram of a portion B of FIG. 2 according to the present invention;

fig. 5 is a schematic perspective view of a trapezoidal block according to the present invention.

In the figure: 1. a base plate; 2. a circular groove; 3. a liquid collection box; 4. placing a tray; 5. compressing the spring; 6. an arc-shaped plate; 7. a transparent plastic cylinder; 8. a drain pipe; 9. a first scale mark; 10. placing a net; 11. a support bar; 12. a T-shaped rod; 13. a bolt; 14. a column; 15. an electronic timer; 16. a water storage cylinder; 17. a second scale mark; 18. a liquid adding port; 19. a flow pipe; 20. a valve; 21. rotating the disc; 22. a rotating tank; 23. a bidirectional card slot; 24. a spring; 25. a trapezoidal block; 26. and (5) a bearing.

Detailed Description

The technical solutions in the present embodiment will be clearly and completely described below with reference to the drawings in the present embodiment, and it is obvious that the described embodiments are only a part of the embodiments, and not all of the embodiments.

Referring to fig. 1-5, the underground water permeability coefficient detection device comprises a bottom plate 1, wherein a stand column 14 is installed at the top of the bottom plate 1, an electronic timer 15 is installed on the outer side of the stand column 14, a rotating mechanism is installed at the top of the stand column 14, a water storage cylinder 16 is connected onto the rotating mechanism, a water flowing pipe 19 is installed on the outer side of the water storage cylinder 16, a liquid filling port 18 is installed at the top of the water storage cylinder 16, a valve 20 is arranged on the water flowing pipe 19, two placing discs 4 are installed at the top of the bottom plate 1, elastic fixing units are arranged in the two placing discs 4, transparent plastic cylinders 7 are placed in the two placing discs 4, the two transparent plastic cylinders 7 are different in size, an isolation net mechanism is arranged in the two transparent plastic cylinders 7, a drain pipe 8 is arranged on the outer sides of the two transparent plastic cylinders 7, and a liquid collection box 3 is placed at the top of the bottom plate 1.

In this embodiment, rotary mechanism includes rotary disk 21, two springs 24, two trapezoidal pieces 25, swivelling chute 22 has been seted up to rotary disk 21's bottom, stand 14 rotates with swivelling chute 22 to be connected, two spring grooves have been seted up to the symmetry on swivelling chute 22's the inner wall, trapezoidal piece 25 and the spring groove sliding connection that corresponds, spring 24's one end links to each other with trapezoidal piece 25, spring 24's the other end links to each other with the inner wall in spring groove, a plurality of two-way draw-in grooves 23 have evenly been seted up in stand 14's the outside, trapezoidal piece 25 and the two-way joint of two-way draw-in groove 23, bearing 26 is installed on stand 14's top, bearing 26's outer lane links to each other with swivelling chute 22's inner wall.

In this embodiment, the spring 24 that sets up provides elasticity for trapezoidal piece 25 can increase the stability of rotary disk 21 and water storage section of thick bamboo 16 in can getting into two-way draw-in groove 23, can conveniently adjust the angle of water storage section of thick bamboo 16, conveniently drains to two transparent plastic section of thick bamboos 7 inside.

In this embodiment, the elastic fixing unit includes two pressure springs 5 and two arc plates 6, the two arc plates 6 are symmetrically installed in the placing disc 4, and the pressure springs 5 are multiple and installed between the arc plates 6 and the inner wall of the placing disc 4.

In the present embodiment, the pressure spring 5 provides elasticity to the arc plate 6, so that the arc plate 6 can fix the transparent plastic cylinder 7.

In this embodiment, the separation net mechanism includes a placing net 10, a support rod 11, a T-shaped rod 12, and a bolt 13, the support rod 11 is installed on the inner wall of the corresponding transparent plastic cylinder 7, the T-shaped rod 12 is slidably installed on the support rod 11, the bottom end of the T-shaped rod 12 is connected to the top of the placing net 10, the bolt 13 is connected to the outer side of the support rod 11 in a threaded manner, and the end of the bolt 13 is matched with the T-shaped rod 12.

In this embodiment, the placing net 10 is arranged to carry the measuring materials without blocking water flow, and the height of the placing net 10 can be adjusted by loosening the bolts 13 and passing through the T-shaped rods 12, so that the loading capacity of the measuring materials can be adjusted.

In this embodiment, the outside of the liquid collecting box 3 is provided with the first scale mark 9, the outside of the water storage cylinder 16 is provided with the second scale mark 17, the circular groove 2 is opened at the top of the bottom plate 1, and the liquid collecting box 3 is movably connected with the circular groove 2.

In the embodiment, when the device is used, firstly, underground water is added into the water storage cylinder 16 through the liquid adding port 18, the capacity is recorded through the second scale mark 17, the bottom areas A of the two transparent plastic cylinders 7 are sequentially measured, the two transparent plastic cylinders 7 are respectively placed into the two placing discs 4, the dredging pressure spring 5 provides elasticity for the corresponding arc-shaped plate 6, so that the arc-shaped plate 6 fixes the transparent plastic cylinders 7, a measuring material (soil) is added into one transparent plastic cylinder 7, the distance between the placing net 10 and the top of the measuring material is measured, the height L of the soil is recorded, the water storage cylinder 16 is rotated, the trapezoidal block 25 enters the other bidirectional clamping groove 23 from one bidirectional clamping groove 23, the placing stability of the water storage cylinder 16 can be increased, the valve 20 is opened, the underground water in the water storage cylinder 16 flows into the transparent plastic cylinder 7 through the water flowing pipe 19, the time t is recorded through the electronic timer 15, groundwater gets into the bottom of transparent plastic cylinder 7 through survey material infiltration, through 8 discharge entering liquid of drain pipe in collecting box 3, can collect the groundwater of infiltration, collect box 3 through liquid and go on record water yield Q, measure remaining water content height delta h in the transparent plastic cylinder 7, utilize the formula: k is Q L/(A Δ h) calculation promptly, loosen bolt 13, can adjust the height of T type pole 12, can adjust the height that survey the material and bear, simultaneously because two transparent plastic tube 7's size is different, can detect to the infiltration rate of different areas, and convenient to use, convenient contrast detects, two transparent plastic tube 7 can conveniently take out cleanly, it is nimble to use, all structures in this application all can carry out the selection of material and length according to the in-service use condition, the drawing is the schematic structure chart, concrete actual dimension can make appropriate adjustment.

The above descriptions are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the scope of the present invention.

Claims

1. The underground water permeability coefficient detection device comprises a bottom plate (1), wherein a stand column (14) is installed at the top of the bottom plate (1), and is characterized in that an electronic timer (15) is installed at the outer side of the stand column (14), a rotating mechanism is installed at the top of the stand column (14), a water storage cylinder (16) is connected onto the rotating mechanism, a water flowing pipe (19) is installed at the outer side of the water storage cylinder (16), a liquid filling opening (18) is installed at the top of the water storage cylinder (16), a valve (20) is arranged on the water flowing pipe (19), two placing discs (4) are installed at the top of the bottom plate (1), elastic fixing units are arranged in the two placing discs (4), transparent plastic cylinders (7) are placed in the two placing discs (4), the two transparent plastic cylinders (7) are different in size, an isolation net mechanism is arranged in the two transparent plastic cylinders (7), and drain pipes (8) are arranged at the outer sides of the two transparent plastic cylinders (7), a liquid collecting box (3) is arranged on the top of the bottom plate (1).

2. The underground water permeability coefficient detection device of claim 1, wherein the rotating mechanism comprises a rotating disk (21), two springs (24) and two trapezoidal blocks (25), a rotating groove (22) is formed in the bottom of the rotating disk (21), the upright column (14) is rotatably connected with the rotating groove (22), two spring grooves are symmetrically formed in the inner wall of the rotating groove (22), the trapezoidal blocks (25) are slidably connected with the corresponding spring grooves, one end of each spring (24) is connected with the corresponding trapezoidal block (25), the other end of each spring (24) is connected with the inner wall of the corresponding spring groove, a plurality of bidirectional clamping grooves (23) are uniformly formed in the outer side of the upright column (14), and the trapezoidal blocks (25) are in bidirectional clamping connection with the bidirectional clamping grooves (23).

3. The underground water permeability coefficient detection device according to claim 2, wherein a bearing (26) is mounted at the top end of the upright (14), and the outer ring of the bearing (26) is connected with the inner wall of the rotary groove (22).

4. The underground water permeability coefficient detection device according to claim 1, wherein the elastic force fixing unit comprises two pressure springs (5) and two arc-shaped plates (6), the two arc-shaped plates (6) are symmetrically arranged in the placing disc (4), and the plurality of pressure springs (5) are arranged between the arc-shaped plates (6) and the inner wall of the placing disc (4).

5. The underground water permeability coefficient detection device according to claim 1, wherein the isolation net mechanism comprises a placing net (10), a support rod (11), a T-shaped rod (12) and a bolt (13), the support rod (11) is installed on the inner wall of the corresponding transparent plastic cylinder (7), the T-shaped rod (12) is installed on the support rod (11) in a sliding mode, the bottom end of the T-shaped rod (12) is connected with the top of the placing net (10), the bolt (13) is connected to the outer side of the support rod (11) in a threaded mode, and the end of the bolt (13) is matched with the T-shaped rod (12).

6. A groundwater permeability coefficient detecting device according to claim 1, characterized in that a first scale mark (9) is arranged on the outer side of the liquid collecting box (3), and a second scale mark (17) is arranged on the outer side of the water storage barrel (16).

7. The underground water permeability coefficient detection device of claim 1, wherein a circular groove (2) is formed at the top of the bottom plate (1), and the liquid collection box (3) is movably connected with the circular groove (2).