CN2765135Y

CN2765135Y - Improved deep-freezing tube

Info

Publication number: CN2765135Y
Application number: CNU2005200893169U
Authority: CN
Inventors: 陈晓飞
Original assignee: Shenyang Agricultural University
Current assignee: Shenyang Agricultural University
Priority date: 2005-02-06
Filing date: 2005-02-06
Publication date: 2006-03-15
Anticipated expiration: 2015-02-06

Abstract

The utility model relates to an improved deep-freezing tube, which comprises an outer tube, an inner tube, an upper end cover and a lower end plug. The utility model is characterized in that the outer tube is an integral hard PVC tube; both ends of the organic glass inner tube marked with scales are fixedly provided with rubber plugs; an emulsion tube is fixedly arranged in the inner tube; a cavity between the emulsion tube and the inner tube is provided with a micro-methylene solution; the upper end of the outer tube is assembled with a rubber plug; a rubber plug on the upper end of the inner tube is connected to the rubber plug on the upper end of the outer tube through a hanging rope. The utility model can avoid the problem that the connection point of an original deep-freezing tube is easy to penetrate water during use. Thus, the measuring precision is affected. Besides, the utility model can solve the problem that a frozen soil apparatus is easy to cut when taken out from soil in summer. Thus, fittings on the lower part are difficult to take out and are easy to bend. Meanwhile, the utility model can reduce cost more than 2/3, and has the advantages of long service life, measuring precision guarantee, simple operation, strong practicability and convenient repair.

Description

Improvedly freeze dark pipe

Technical field

The utility model belongs to the determinator of a kind of soil freezing degree of depth, thaw depth, particularly a kind of improved dark pipe that freezes.

Background technology

The hydraulic structure that is determined at cold district of the soil freezing degree of depth, thaw depth, industry and the freezing prevention of civil building, the artificial freezing method of employing on soft soil foundation aspect the construction, all there is important meaning in fields such as the circulation of land caloic, meteorological observation.At present, the assay method of the soil freezing degree of depth, thaw depth has thermometry, supercritical ultrasonics technology, TDR method and freezes dark Guan Fa etc.But the apparatus cost that first three methods needs is higher, in the deficiency that also exists aspect the convenience of instrumentation precision and use separately.And freeze dark pipe rule is a kind of preferably method of instrumentation precision.It is domestic that at present employed to freeze dark pipe mainly be the DTM-2 type, but cost is but than higher, every can be measured maximum frozen depth is about 900 yuans of the dark pipe retail price of freezing of 1.5m, and outer tube is made up of two sections rubberite tube couplings, is easy to into water in the use in the junction, thereby influences the instrumentation precision, take out from soil in summer and also to be easy to when freezing dark pipe disconnect, make that the bottom pipe fitting is difficult to take out, and the rigidity of ebonite tube is undesirable, crooked easily.

The utility model content

The purpose of this utility model provides a kind of improved dark pipe that freezes, and its outer tube does not have connecting portion, does not exist water inlet to reach the problem that disconnects easily when taking out in the use from soil, does not have bending, and cost is low, long service life.

The purpose of this utility model is achieved by the following technical solution: it comprises outer tube, interior pipe, upper end cover, following end plug, it is characterized in that: outer tube is whole hard PVC pipe, the interior pipe of the organic glass two ends that indicate scale install rubber plug, interior pipe internal fixation is equipped with emulsion tube, cavity between emulsion tube and interior pipe is equipped with the solution that contains micro-methylene blue, at the upper end of outer tube assembling rubber plug, the rubber plug of interior pipe upper end is connected on the rubber plug of outer tube upper end by lifting rope.

During use, inwardly pipe is filled with the no gas pure water that adds micro-methylene blue earlier, and interior pipe is put into outer tube and covered rubber plug and upper end cover.Use the earth boring auger identical in soil to be determined or medium, to punch then, the utility model is inserted in the hole of being accomplished fluently with the outer external diameter of pipe of the utility model.Observation is freezed, upper end cover is opened during thaw depth, and pipe is determined the interior pipe degree of depth of having frozen in taking out rapidly, and this is the depth of freezing; Just can determine two thaw depths of surveying up and down as long as in melting process, determined the position of the upper and lower side of icicle in the interior pipe.To as early as possible interior pipe be put back to outer tube and cover rubber plug and upper end cover after the observation.

The utility model has the advantages that: its outer tube is whole no connecting portion, thereby avoided junction that original DTM-2 type freezes dark pipe outer tube in use easily water inlet influence the instrumentation precision, and when from soil, taking out freezing meter summer, disconnect easily, make the bottom pipe fitting be difficult to problems such as taking-up; Can not bend in the use.Significantly reduced cost, every can be measured maximum frozen depth is that the dark pipe cost of freezing of 1.5m is no more than 100 yuans, can save more than 500 yuan of fund than DTM-2 type freezing meter; Long service life, secure, simple to operate, practical, the maintenance convenience of instrumentation precision.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Embodiment

See Fig. 1, concrete structure is: whole hard PVC outer tube 6 external diameters are 25.4mm, and wall thickness is 2mm; End plug 9 under the rubber is installed in lower end at outer tube 6, and assembling indicates the interior pipe 7 of organic glass of scale in the outer tube 6, and its external diameter is 20mm, and wall thickness is 2mm; It is 6mm that the internal fixation of the interior pipe 7 of organic glass is equipped with external diameter, and internal diameter is the interior pipe 8 of the latex of 4mm, manages 7 upper and lower sides assembling rubber plug 2,1 in the organic glass, and is cemented by seccotine.Fill with the no gas pure water that adds micro-methylene blue between the pipe 8 in interior pipe 7 and the latex, assemble rubber plug 3 in the upper end of outer tube 6, the rubber plug 2 of interior pipe 7 upper ends is connected on the rubber plug 3 by lifting rope 5.The length of inner and outer pipes can be adjusted according to the maximum frozen depth of mensuration medium.

Claims

1, a kind of improved dark pipe that freezes, it comprises outer tube, interior pipe, upper end cover, following end plug, it is characterized in that: outer tube is whole hard PVC pipe, the interior pipe of the organic glass two ends that indicate scale install rubber plug, interior pipe internal fixation is equipped with emulsion tube, cavity between emulsion tube and interior pipe is equipped with the solution that contains micro-methylene blue, and at the upper end of outer tube assembling rubber plug, the rubber plug of interior pipe upper end is connected on the rubber plug of outer tube upper end by lifting rope.