CN211206164U

CN211206164U - Fixed water head soil permeability measuring device

Info

Publication number: CN211206164U
Application number: CN201921573051.8U
Authority: CN
Inventors: 王月玲; 马璠; 许浩; 万海霞; 韩新生; 郭永忠; 董立国; 蔡进军; 温淑红
Original assignee: Institute Of Desertification Control Ningxia Academy Of Agriculture And Forestry Sciences (ningxia Key Laboratory Of Sand Control And Soil And Water Conservation)
Current assignee: Institute Of Desertification Control Ningxia Academy Of Agriculture And Forestry Sciences (ningxia Key Laboratory Of Sand Control And Soil And Water Conservation)
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-08-07
Anticipated expiration: 2029-09-20

Abstract

The utility model provides a constant head soil permeability survey device relates to indoor survey technical field. This constant head soil permeability survey device, including the workstation, the last fixed surface of workstation installs the support, the lateral wall fixed mounting of support has the fixed arm, fixed mounting has the water head pipe on the lateral wall of fixed arm, the bottom threaded connection of water head pipe has the sample room, the bottom fixed mounting of sample room has the permeable stone, the upper surface of workstation and one side fixed mounting support column relative with the support, the top fixed mounting of support column has the water tank. Through the original state earth pillar infiltration capacity survey device who sets up the standard cutting ring of the special cooperation 100cm3 specification, guarantee that the survey experiment goes on under strict constant head condition, acquire accurate data, the device has designed weighing part and video shooting part, and convenient to use can reach unmanned on duty state with a simple and convenient mode, very big reduction intensity of labour.

Description

Fixed water head soil permeability measuring device

Technical Field

The utility model relates to an indoor survey technical field specifically is a constant head soil permeability survey device.

Background

In the soil physics research, a standard cutting ring with the specification of 100cm3 is used for obtaining an original-state soil column, the same cutting ring is connected to the cutting ring, then water is injected into the upper hollow cutting ring, water is dripped into a container after leaking through the original-state soil column, and the water conductivity is calculated according to the amount of leaked water in unit time by timing.

However, the simple method has the disadvantages that the upper and lower ring cutters are connected by waterproof tapes in each measurement, time and labor are wasted, the ring cutters are easy to topple in the sample measurement process to cause experiment failure under the condition of no matched device, the method is not a strict constant water head or variable water head measurement method, the accuracy of measurement data is greatly influenced, and the measurement result can only be used as a reference value but cannot be used as a more accurate model parameter.

Disclosure of Invention

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a constant head soil permeability survey device has solved current survey method and has wasted time and energy, and the accuracy of survey data receives very big influence simultaneously, and the testing result can only be as a reference value, and can't regard as the problem of more accurate model parameter.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a fixed head soil permeability measuring device comprises a workbench, wherein a support is fixedly arranged on the upper surface of the workbench, a fixed arm is fixedly arranged on the outer side wall of the support, a water head pipe is fixedly arranged on the side wall of the fixed arm, a sample chamber is in threaded connection with the bottom end of the water head pipe, a permeable stone is fixedly arranged at the bottom of the sample chamber, a support column is fixedly arranged on the upper surface of the workbench and on one side opposite to the support, a water tank is fixedly arranged at the top of the support column, a water pump is arranged at the inner bottom of the water tank, a water inlet pipe is fixedly arranged at the outlet of the water pump, one end of the water inlet pipe, which is far away from the water pump, extends into the water head pipe, an electronic balance is arranged on the upper surface of the workbench and between the support and the water tank, a weighing container is arranged above the electronic balance, and a mounting frame, the top of mounting bracket is provided with the record appearance, the record appearance is provided with the stopwatch with electronic balance's centre.

Preferably, the surface of water head pipe and the position that is close to the top are provided with the delivery port, delivery port fixedly connected with wet return, the one end that the delivery port was kept away from to the wet return extends to the inside of water tank.

Preferably, the inside of water head pipe and be close to the bottom position and be provided with the internal thread, the outside of sample room and be close to the top position and be provided with the external screw thread.

Preferably, the sample chamber is positioned right above the weighing container, and the top of the sample chamber is provided with an opening.

Preferably, the sample chamber is made of stainless steel material, and the wall thickness of the sample chamber is 5mm, the inner diameter is 56.5mm, and the net depth is 48 mm.

Preferably, the thickness of the permeable stone is 5mm, a silica gel ring is bonded on the circumference of the upper surface of the permeable stone, the length of the water head pipe is 16cm, and the wall thickness of the water head pipe is 5 mm.

The working principle is as follows: when in use, the sample cutting ring is put into the sample chamber, the water head pipe is screwed with the sample chamber, then the water head pipe is fixed on a fixing arm of the bracket, the electronic balance, the weighing container, the recorder and the stopwatch are arranged, the lens of the recorder is aligned with the display screen of the electronic balance, then the water pump is started, the water pump injects the water in the water tank into the water head pipe through the water inlet pipe, the water flow is regulated, the redundant water is discharged from the water outlet at the upper part of the water head pipe and flows back to the water tank for recycling, the timing and video shooting are started when the lower end of the sample chamber drips, then the time and the amount of the penetrating water can be recorded in an unattended way every 30min for calculating the water conductivity and the change thereof, the measurement is stopped after the water conductivity is stabilized, the measurement is ensured to be carried out under the strict constant water head condition by arranging the undisturbed soil column permeability measuring device specially matched with the standard cutting ring, the device has the advantages that accurate data are acquired, the weighing part and the video shooting part are designed, the use is convenient, the unattended state can be achieved in a simple and convenient mode, and the labor intensity is greatly reduced.

(III) advantageous effects

The utility model provides a constant head soil permeability survey device. The method has the following beneficial effects:

this constant head soil permeability survey device through setting up the original state earth pillar permeability survey device of the standard cutting ring of the special cooperation 100cm3 specification, guarantees that the survey experiment goes on under strict constant head condition, acquires accurate data, and the device has designed weighing part and video shooting part, and convenient to use can reach unmanned on duty state with a simple and convenient mode, very big reduction intensity of labour.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a work table; 2. a support; 3. a fixed arm; 4. a water head pipe; 5. a sample chamber; 6. a permeable stone; 7. a water tank; 8. a water pump; 9. a water inlet pipe; 10. an electronic balance; 11. weighing the container; 12. a recorder; 13. a stopwatch; 14. a water outlet; 15. a water return pipe; 16. a mounting frame; 17. and (4) a support column.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b):

as shown in FIG. 1, an embodiment of the present invention provides a constant head soil permeability measuring apparatus, which includes a workbench 1, a support 2 is fixedly installed on an upper surface of the workbench 1, a fixing arm 3 is fixedly installed on an outer side wall of the support 2, a water head pipe 4 is fixedly installed on a side wall of the fixing arm 3, a sample chamber 5 is connected to a bottom end thread of the water head pipe 4, a permeable stone 6 is fixedly installed at a bottom of the sample chamber 5, a supporting pillar 17 is fixedly installed on an upper surface of the workbench 1 and on a side opposite to the support 2, a water tank 7 is fixedly installed at a top of the supporting pillar 17, a water pump 8 is disposed at an inner bottom of the water tank 7, a water inlet pipe 9 is fixedly installed at an outlet of the water pump 8, one end of the water inlet pipe 9 far away from the water pump 8 extends to the inside of the water head pipe 4, an electronic balance 10 is disposed on, an installation frame 16 is fixedly installed on the upper surface of the workbench 1 and positioned between the electronic balance 10 and the water tank 7, a recorder 12 is arranged on the top of the installation frame 16, a stopwatch 13 is arranged between the recorder 12 and the electronic balance 10, when in use, a sample cutting ring is placed into the sample chamber 5, the water head pipe 4 is screwed with the sample chamber 5, the water head pipe 4 is fixed on the fixing arm 3 of the bracket 2, the electronic balance 10, the weighing container 11, the recorder 12 and the stopwatch 13 are arranged, the lens of the recorder 12 is aligned with the display screen of the electronic balance 10, then the water pump 8 is started, the water in the water tank 7 is injected into the water head pipe 4 through the water inlet pipe 9 by the water pump 8, attention is paid to regulating water flow, redundant water is discharged from the water outlet 14 at the upper part of the water head pipe 4 and flows back to the water tank 7 to be recycled, and timing and video shooting are started when, the device is characterized in that the device can be unattended, the time and the amount of water permeating are recorded every 30min, the device is used for calculating the water conductivity and the change of the water conductivity, the determination is stopped after the water conductivity is stable, the determination experiment is ensured to be carried out under the strict constant water head condition by arranging an undisturbed soil column permeability determination device specially matched with a standard cutting ring with the specification of 100cm3, accurate data are obtained, a weighing part and a video shooting part are designed, the device is convenient to use, the unattended state can be achieved in a simple and convenient mode, and the labor intensity is greatly reduced.

A water outlet 14 is arranged on the outer surface of the water head pipe 4 and close to the top, a water return pipe 15 is fixedly connected to the water outlet 14, one end, far away from the water outlet 14, of the water return pipe 15 extends into the water tank 7, the water outlet 14 is used for discharging redundant water, an internal thread is arranged on the position, close to the bottom, of the water head pipe 4, an external thread is arranged on the position, close to the top, of the outer portion of the sample chamber 5, the sample chamber 5 is located right above the weighing container 11, so that water seeped from the sample chamber 5 enters the weighing container 11 and is weighed through the electronic balance 10, the top of the sample chamber 5 is arranged in an opening, the sample chamber 5 is made of stainless steel materials, the wall thickness of the sample chamber 5 is 5mm, the inner diameter of the sample chamber is 56.5mm, the net depth of the sample chamber is 48mm, the thickness of the permeable stone 6 is 5mm, the length of the head pipe 4 is 16cm, and the wall thickness of the head pipe 4 is 5 mm.

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

Claims

1. The utility model provides a constant head soil permeability survey device, includes workstation (1), its characterized in that: the water-saving scale is characterized in that a support (2) is fixedly mounted on the upper surface of the workbench (1), a fixed arm (3) is fixedly mounted on the outer side wall of the support (2), a water head pipe (4) is fixedly mounted on the side wall of the fixed arm (3), a sample chamber (5) is connected to the bottom end of the water head pipe (4) in a threaded manner, a permeable stone (6) is fixedly mounted at the bottom of the sample chamber (5), a support pillar (17) is fixedly mounted on the upper surface of the workbench (1) and on one side opposite to the support (2), a water tank (7) is fixedly mounted at the top of the support pillar (17), a water pump (8) is arranged at the inner bottom of the water tank (7), a water inlet pipe (9) is fixedly mounted at an outlet of the water pump (8), one end, far away from the water pump (8), of the water inlet pipe (9) extends to the inside of the water head pipe (4), an electron (, the automatic weighing device is characterized in that a weighing container (11) is arranged above the electronic balance (10), an installation rack (16) is fixedly installed on the upper surface of the workbench (1) and in the middle of the electronic balance (10) and the water tank (7), a recorder (12) is arranged at the top of the installation rack (16), and a stopwatch (13) is arranged between the recorder (12) and the electronic balance (10).

2. The constant head soil permeability measuring device according to claim 1, wherein: the surface of water head pipe (4) and the position that is close to the top are provided with delivery port (14), delivery port (14) fixedly connected with wet return (15), the one end that delivery port (14) were kept away from in wet return (15) extends to the inside of water tank (7).

3. The constant head soil permeability measuring device according to claim 1, wherein: the inside of water head pipe (4) just is provided with the internal thread near the bottom position, the outside of sample room (5) just is close to the top position and is provided with the external screw thread.

4. The constant head soil permeability measuring device according to claim 1, wherein: the sample chamber (5) is positioned right above the weighing container (11), and the top of the sample chamber (5) is provided with an opening.

5. The constant head soil permeability measuring device according to claim 1, wherein: the sample chamber (5) is made of stainless steel materials, and the wall thickness of the sample chamber (5) is 5mm, the inner diameter of the sample chamber is 56.5mm, and the net depth of the sample chamber is 48 mm.

6. The constant head soil permeability measuring device according to claim 1, wherein: the thickness of permeable stone (6) is 5mm, and bonds on the upper surface circumference of permeable stone (6) and has the silica gel circle, the length 16cm of water head pipe (4), and the wall thickness 5mm of water head pipe (4).