CN2758695Y

CN2758695Y - Deep frozen soil pipe

Info

Publication number: CN2758695Y
Application number: CN 200420055746
Authority: CN
Inventors: 陈晓飞
Original assignee: Shenyang Agricultural University
Current assignee: Shenyang Agricultural University
Priority date: 2004-12-14
Filing date: 2004-12-14
Publication date: 2006-02-15
Anticipated expiration: 2014-12-14

Abstract

The utility model relates to a novel deep frozen pipe, which comprises an outer pipe, an inner pipe, an upper end cover and a lower end plug. The utility model is characterized in that the outer pipe is an integrated and hard PVC pipe; both ends of the emulsoid inner pipe marked with scales are fixedly provided with iron blocks; the upper end of the outer pipe is assembled with a rubber plug; an iron block on the upper end of the inner pipe is connected to the rubber plug through a low elastic hanging rope. The utility model can avoid the problem that the connection point of an original deep frozen pipe is easy to feed water when an original deep frozen pipe is used. Thereby, the measurement accuracy of an original deep frozen pipe is affected. Besides, a soil frozen device is also easy to disconnect from soil in summer, and 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, accurate measuring accuracy with guarantee, simple operation, strong practicability and convenient repair.

Description

Novelly 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 novel 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 novel 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 latex two ends that indicate scale install iron and block up, at the upper end of outer tube assembling rubber plug, the iron of interior pipe upper end is stifled to be connected on the rubber plug by the low suspension rope that plays.

During use, earlier inside pipe is filled with no gas pure water or is added the no gas pure water of micro-methylene blue, 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 3 external diameters are 25.4mm, in the lower end of outer tube 3 end plug 1 under the rubber are installed, assembling indicates the interior pipe 4 of latex of scale in the outer tube 3, pipe 4 external diameters are 8mm in the latex, and pipe 4 upper and lower sides assembling iron is stifled 5 and 2 in the latex, and fastening by outer hoop 9.The interior no gas pure water of filling with no gas pure water in 4 or adding micro-methylene blue of managing, at the upper end of outer tube 3 assembling rubber plug 7, the iron stifled 5 of interior pipe 4 upper ends is connected on the rubber plug 7 by the low suspension rope 6 that plays, and makes pipe 4 suspention in outer tube 3 in the integral body, does not bend.The length of inner and outer pipes can be adjusted according to the maximum frozen depth of mensuration medium.

Claims

1, a kind of novel 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 latex two ends that indicate scale install iron and block up, at the upper end of outer tube assembling rubber plug, the iron of interior pipe upper end is stifled to be connected on the rubber plug by the low suspension rope that plays.