CN204679491U - A kind of new soil tensiometer - Google Patents
A kind of new soil tensiometer Download PDFInfo
- Publication number
- CN204679491U CN204679491U CN201520081296.4U CN201520081296U CN204679491U CN 204679491 U CN204679491 U CN 204679491U CN 201520081296 U CN201520081296 U CN 201520081296U CN 204679491 U CN204679491 U CN 204679491U
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- pipe
- head
- polycarbonate
- side opening
- water
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Abstract
The utility model belongs to observation and control technology field, discloses a kind of new soil tensiometer, and it comprises polycarbonate pipe, stainless steel pointer direct-reading instrument, air extractor and permeable-gas ceramics head.It is characterized in that: described polycarbonate pipe is the hollow circular-tube with 4 holes, wherein 1, tube head 1 and each 1 of tube head both sides at the bottom of pipe; Described stainless steel pointer direct-reading instrument is arranged on the interface of tube head side; Described air extractor is used for polycarbonate pipe water-filling; Described dome-type permeable-gas ceramics head is arranged on interface at the bottom of the pipe after being full of water, in semi-spherical shape.Dome-type permeable-gas ceramics head in the utility model has the feature of uniform force, overcomes and easily split easily broken shortcoming in installation and use procedure; General irrigation device can be eliminated by drawing water at the bottom of pipe and can produce the shortcoming of managing included wall bubble.The advantage that the utility model has detachably, permanance is high and measuring accuracy is high, is mainly used in the measurement of the soil matrix suction of scientific research and engineering construction.
Description
Technical field
The utility model belongs to observation and control technology field, is a kind of new soil tensiometer measuring soil matrix suction.
Background technology
The change of rainfall infiltration or underground water table can make unsaturated soil water cut change, thus has an impact to the matric suction in unsaturated soil, and matric suction equals pore air pressure and deducts pore water pressure.Matric suction is the central factor affecting unsaturated soil character, the core content of unsaturated soils theory research during the measurement of therefore matric suction.Compared with the fast development of unsaturated soil theory, for equipment and the technology of soil body Observation of The Suction, still there is a lot of defect and difficulty in current slower development.
Current more easy Soil Tension has following shortcoming: adopt the mode of pouring water from Guan Ding to carry out water-filling to tensiometer, and this mode can make the bubble producing attached wall in pipe, the precision that impact is measured; Existing permeable-gas ceramics head is generally elongated bullet shape, and the ceramic head ratio of this shape is easier in use ftracture or twisted off in installation process.
Utility model content
Technology to be solved in the utility model is for Problems existing in above-mentioned background technology, proposes a kind of detachable, permanance is high and measuring accuracy is high new soil tensiometer.
A kind of new soil tensiometer, is become with permeable-gas ceramics head group by polycarbonate pipe, pointer direct-reading instrument, air extractor, it is characterized in that: described polycarbonate pipe is a hollow circular-tube with some holes; Described pointer direct-reading instrument is arranged on the interface of polycarbonate pipe tube head side; Described air extractor is arranged on tube head interface; Described permeable-gas ceramics head is arranged on interface at the bottom of polycarbonate pipe pipe.
Described some holes comprise pipe bottom outlet, the first pipe side opening, the second pipe side opening and tube head hole.Described pipe bottom outlet is equipped with in the container of chilled water for installing permeable-gas ceramics head or being placed on, the first described pipe side opening is for installing pointer direct-reading instrument, the second described pipe side opening is used for mounting pipe lid or container filled with water, and described tube head hole is used for mounting pipe lid or air extractor.
Described permeable-gas ceramics head is dome-type, realizes installation and removal by reversing.
Soil Tension is when normally using, and the pipe bottom outlet of polycarbonate pipe, the first pipe side opening, the second pipe side opening and tube head hole have installed dome-type ceramic head, pointer direct-reading instrument, Guan Gai and Guan Gai respectively.
Soil Tension before use, need respectively pipe lid, air extractor and pointer direct-reading instrument to be arranged on the second pipe side opening of polycarbonate pipe, tube head hole and the first pipe side opening, and pipe bottom outlet be placed on be equipped with cooling boiling water container in, be then full of water by air extractor by tensiometer.
In normal use procedure, when water level obviously falls in pipe, after pipe lid need being taken off from the second pipe side opening and tube head hole, container filled with water and air extractor are arranged on the second pipe side opening and tube head hole respectively.
The advantage that the utility model has detachably, permanance is high and measuring accuracy is high, overcomes and easily split easily broken shortcoming in ceramic head installation and use procedure; Eliminate general irrigation device by the mode of drawing water at the bottom of pipe and can produce the shortcoming of managing included wall bubble.
Accompanying drawing explanation
Fig. 1 is the front view (FV) of Soil Tension normal operating period;
Fig. 2 is the front elevation of polycarbonate pipe;
Fig. 3 is the water-filling front view (FV) before Soil Tension uses;
Fig. 4 is the water-filling front view (FV) of Soil Tension operating period;
Fig. 5 is the front elevation of dome-type ceramic head;
Fig. 6 is the vertical view of dome-type ceramic head;
In figure: 1-polycarbonate pipe, 2-stainless steel pointer direct-reading instrument, 3-air extractor, 4-ceramic head, 5-pipe lid, 6-pipe bottom outlet, 7-first pipe side opening, 8-second pipe side opening, 9-tube head hole, 10-is equipped with the container of cooling boiling water, 11-container filled with water.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
A kind of new soil tensiometer, forms primarily of polycarbonate pipe 1, stainless steel pointer direct-reading instrument 2, air extractor 3 and permeable-gas ceramics head 4.Described polycarbonate pipe 1 is the hollow circular-tube with four holes, comprises pipe bottom outlet 6, first pipe side opening 7, second pipe side opening 8 and tube head hole 9; Described stainless steel pointer direct-reading instrument 2 is arranged on the first pipe side opening 7 of polycarbonate pipe 1, for measuring the vacuum tightness in pipe; Described air extractor 3 is arranged on the tube head hole 9 of polycarbonate pipe 1, for polycarbonate pipe water-filling; Described dome-type permeable-gas ceramics head 4 be arranged on polycarbonate pipe 1 be full of after water pipe bottom outlet 6, in semi-spherical shape.
Before use, by the air extractor 3 that is arranged on the tube head hole 9 of polycarbonate pipe 1 the polycarbonate pipe 1 soaked in water drawn water and make to be full of water in pipe; In use, be inserted at the bottom of the pipe of tensiometer in soil, when in managing, water level obviously falls, need the boiling water again supplementing cooling, at the second pipe side opening 8 of polycarbonate pipe 1, container filled with water 11 can be installed and water-filling is carried out to it, when there is attached wall bubble in pipe, and in pipe after stable level, slowly can draw water with the air extractor 3 being arranged on tube head hole 9, until there is no bubble.
The utility model is in the normal operating period, dome-type ceramic head 4, rust steel pointer direct-reading instrument 2, pipe lid 5 and pipe lid 5(have been installed respectively see Fig. 1 and Fig. 2 in pipe bottom outlet 6, first pipe side opening 7, the second pipe side opening 8 of polycarbonate pipe 1 and tube head hole 9), wherein the structure of dome-type ceramic head is see Fig. 5 and Fig. 6.
The utility model needs to be full of water to it before use, before water-filling, need respectively pipe lid 5, air extractor 3 and stainless steel pointer direct-reading instrument 2 to be arranged on the second pipe side opening 8 of polycarbonate pipe 1, tube head hole 9 and the first pipe side opening 7, and pipe bottom outlet 6 be placed on be equipped with cooling boiling water container 10 inside (see Fig. 3), then allow tensiometer be full of water by air extractor 3.
In normal use procedure, when in pipe, water level obviously falls, the boiling water of cooling need be supplemented to it.After pipe lid 5 is taken off from the second pipe side opening 8 and tube head hole 9, container filled with water 11 and air extractor 3 are arranged on the second pipe side opening 8 and tube head hole 9 respectively, when there is attached wall bubble in pipe, and in pipe after stable level, slowly can draw water with the air extractor 3 being arranged on tube head hole 9, until there is no bubble.
More than show and describe ultimate principle of the present utility model, principal character and advantage.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. a new soil tensiometer, is become with permeable-gas ceramics head group by polycarbonate pipe, pointer direct-reading instrument, air extractor, it is characterized in that: described polycarbonate pipe is a hollow circular-tube with some holes; Described pointer direct-reading instrument is arranged on the interface of polycarbonate pipe tube head side; Described air extractor is arranged on tube head interface; Described permeable-gas ceramics head is arranged on interface at the bottom of polycarbonate pipe pipe.
2. new soil tensiometer according to claim 1, is characterized in that, described some holes comprise pipe bottom outlet, the first pipe side opening, the second pipe side opening and tube head hole; Described pipe bottom outlet is equipped with in the container of chilled water for installing permeable-gas ceramics head or being placed on, the first described pipe side opening is for installing pointer direct-reading instrument, the second described pipe side opening is used for mounting pipe lid or container filled with water, and described tube head hole is used for mounting pipe lid or air extractor.
3. new soil tensiometer according to claim 1, is characterized in that: described permeable-gas ceramics head is dome-type, realizes installation and removal by reversing.
4. new soil tensiometer according to claim 3, it is characterized in that, Soil Tension is when normally using, and the pipe bottom outlet of polycarbonate pipe, the first pipe side opening, the second pipe side opening and tube head hole have installed dome-type ceramic head, pointer direct-reading instrument, Guan Gai and Guan Gai respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520081296.4U CN204679491U (en) | 2015-02-04 | 2015-02-04 | A kind of new soil tensiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520081296.4U CN204679491U (en) | 2015-02-04 | 2015-02-04 | A kind of new soil tensiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204679491U true CN204679491U (en) | 2015-09-30 |
Family
ID=54179174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520081296.4U Expired - Fee Related CN204679491U (en) | 2015-02-04 | 2015-02-04 | A kind of new soil tensiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204679491U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486838A (en) * | 2015-12-25 | 2016-04-13 | 中国科学院南京土壤研究所 | Convenient-to-maintain antifreezing tensiometer measuring soil water potential and test method |
-
2015
- 2015-02-04 CN CN201520081296.4U patent/CN204679491U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486838A (en) * | 2015-12-25 | 2016-04-13 | 中国科学院南京土壤研究所 | Convenient-to-maintain antifreezing tensiometer measuring soil water potential and test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20180204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |