CN105701977B - A kind of earthquake alarm bimetallic tube - Google Patents

Abstract

The invention provides a kind of earthquake alarm bimetallic tube, the bimetallic tube comprises at least the first bimetallic tube and the second bimetallic tube being connected with each other, first bimetallic tube and the second bimetallic tube include inner tube and outer tube, the main fiber and backhaul optical fiber in integrated are provided with inner tube, branched auxiliary optical fiber is provided with outer tube, auxiliary optical fiber includes the process section optical fiber and reverse-running section optical fiber in integrated；The first connection end and second connection end head are respectively equipped with first bimetallic tube and the corresponding connection end of the second bimetallic tube, first connection end includes socket end, second connection end head includes socket end corresponding with socket end, the outside of socket end is provided with external screw thread, internal thread is provided with the inside of socket end, the inside of the end of socket end is embedded with the first magnet, the inside of the tube wall of second bimetallic tube is embedded with second magnet corresponding with the first magnet, the first magnet and the second magnet in the state setting that attracts each other.It is installed, is easy to operate, and can be good at playing earthquake pre-warning effect.

Description

A kind of earthquake alarm bimetallic tube

Technical field

The present invention relates to a kind of earthquake alarm bimetallic tube.

Background technology

Earthquake is a kind of natural calamity, is the destructive natural calamity that a kind of impersonal force can be resisted, and earthquake is from ancient timesThere is generation, because manpower can not resist, what can be done is exactly to find in advance, gives warning in advance, withdraws in time, earthquake prewarning device causesThere are the generation that seismograph can predict earthquake in the great attention of the mankind, ancient times, and many peculiar geography are also had before earthquakePhenomenon can effective foreseeing earthquake, such as the Novel presentation of the Novel presentation of animal and weather, but due to industrialization and cityThe development of change, this natural prediction method have not applied to, and are nowadays both provided with earthquake prewarning device in many places, are modernThe crystallization of science and technology, but effect is not fine, is not well positioned to meet the demand of people.

Therefore, Chinese patent 201510741847.X discloses the method and dress that a kind of optical fiber of knowing clearly is used in earthquake alarmPut, including ground, shell, central circuit plate, lithium battery, generating laser, laser pickoff, power line, optical fiber, pipeline, companyGround pipe is taken over and returns, the outer casing bottom and ground, which coordinate, is installed, and central circuit plate, lithium battery are provided with the shell, is swashedOptical transmitting set, laser pickoff, the central circuit plate and lithium battery are electrically connected with, the generating laser, laser pickoffIt is electrically connected with central circuit plate, the lithium battery and power line are electrically connected with, and pipeline hole, the pipe are provided with the groundRoad hole and tube fit are installed, and are coordinated between the pipeline by connecting tube and installed, and with returning pipe coordinates peace for the pipeline bottomDress.The present invention is stable to be hardly damaged, efficiency high.But in actual use, optical fiber, which will generally extend, stretches to earth's surfaceLayer lower section 20km, or even 30km, 40km distance, there is the problem of installation, troublesome in poeration not easy in it.

The content of the invention

In view of this, installed it is an object of the invention to provide one kind, be easy to operate, and can be good at playing earthquake pre-warningA kind of earthquake alarm bimetallic tube of effect.

In order to solve the above-mentioned technical problem, the technical scheme is that：

A kind of earthquake alarm bimetallic tube, the bimetallic tube comprise at least the first bimetallic tube being connected with each other and the second bilayerPipe, first bimetallic tube and second bimetallic tube include inner tube and outer tube, the inner tube successively from inside to outsideThe interior main fiber and backhaul optical fiber being provided with integrated, the outer tube is interior to be provided with branched auxiliary optical fiber, the auxiliary optical fiber bagInclude the process section optical fiber and reverse-running section optical fiber in integrated；First bimetallic tube and the corresponding connection end of the second bimetallic tubePlace is respectively equipped with the first connection end and second connection end head, and first connection end includes socket end, second connectionTermination includes socket end corresponding with the socket end, and the outside of the socket end is provided with external screw thread, set on the inside of the socket endThere is internal thread, the inside of the end of the socket end is embedded with the first magnet, and the inside of the tube wall of second bimetallic tube is embeddingProvided with second magnet corresponding with first magnet, first magnet and second magnet are set in the state of attracting each otherPut.

Preferably, above-mentioned a kind of earthquake alarm bimetallic tube, connect wherein the outside of first connection end is also fixedIt is connected to first flange, the outside of the second connection end head is provided with second flange corresponding with the first flange, and described firstFlange is connected with the second flange by mechanical fixed part.

Preferably, above-mentioned a kind of earthquake alarm bimetallic tube, wherein the fill-in light fibre is along the transversal of the outer tubeFace circle is spaced apart setting in uniform circular.

Preferably, above-mentioned a kind of earthquake alarm bimetallic tube, wherein the fill-in light fibre is provided with 4.

Preferably, above-mentioned a kind of earthquake alarm bimetallic tube, wherein the main fiber and the backhaul optical fiber with it is describedThe first position limitation protection body is filled between the tube wall of inner tube；It is filled between the auxiliary optical fiber and the tube wall of the outer tubeSecond position limitation protection body.

Preferably, above-mentioned a kind of earthquake alarm bimetallic tube, wherein the first position limitation protection body and second limitPosition protective is polyurethane foam.

Compared with prior art, the technology of the present invention effect is mainly reflected in：Mutually connected using more length of tubing in the present inventionBinding structure, long range overall construction design being improved to multiple branch units, carries out structure design, its operation is greatly simplified,Convenient many is installed and used, and is designed using double-decker, main fiber and auxiliary optical fiber are set, prevent main fiber from damaging, noEarly warning can be played a part of.

Brief description of the drawings

Fig. 1：Schematic structural view of the invention；

Fig. 2：Bimetallic tube of the present invention is in structural representation when being integrally connected state；

Fig. 3：Structural section figure of the present invention.

Embodiment

Below in conjunction with accompanying drawing, the embodiment of the present invention is described in further detail, so that technical solution of the present invention is moreIt should be readily appreciated that and grasp.

As shown in Fig. 1, Fig. 2 and Fig. 3, a kind of earthquake alarm bimetallic tube, the bimetallic tube comprises at least the be connected with each otherThe bimetallic tube 2 of pair of lamina pipe 1 and second, first bimetallic tube 1 and second bimetallic tube 2 include internal layer successively from inside to outsidePipe 3 and outer tube 4, main fiber 5 and backhaul optical fiber 6 in integrated are provided with the inner tube 3, is provided with the outer tube 4Branched auxiliary optical fiber 7, the auxiliary optical fiber 7 include the process section optical fiber and reverse-running section optical fiber in integrated；Described first is double-deckIt is respectively equipped with the first connection end 8 and second connection end first 9 at 2 corresponding connection end of pipe 1 and second bimetallic tube, describedOne connection end 8 includes socket end, and the second connection end first 9 includes socket end corresponding with the socket end, the socketThe outside at end is provided with external screw thread, is provided with internal thread on the inside of the socket end, and the inside of the end of the socket end is embedded with theOne magnet 10, the inside of the tube wall of second bimetallic tube 2 are embedded with second magnet 11 corresponding with first magnet 10,First magnet 10 and second magnet 11 are in the state setting that attracts each other.

The outside of wherein described first connection end 8 is also fixedly connected with first flange, the second connection end first 9 it is outerSide is provided with second flange corresponding with the first flange, and the first flange passes through mechanical fixed part 12 with the second flangeIt is connected.

Cross circular section of the wherein described fill-in light fibre 7 along the outer tube 4 is spaced apart setting in uniform circular.Wherein instituteState auxiliary optical fiber 7 and be provided with 4.

The first spacing guarantor is filled between wherein described main fiber 5 and the backhaul optical fiber 6 and the tube wall of the inner tube 3Watch box 13；The second position limitation protection body 14 is filled between the auxiliary optical fiber 7 and the tube wall of the outer tube 4.Wherein describedOne position limitation protection body 13 and the second position limitation protection body 14 are polyurethane foam.

Structure is connected with each other using more length of tubing in the present invention, it is single that long range overall construction design is improved into multiple branchesMember, structure design is carried out, its operation is greatly simplified, and installs and uses convenient many, and is designed using double-decker, sets masterOptical fiber and auxiliary optical fiber, prevent main fiber from damaging, it is impossible to play a part of early warning.

Certainly, the above is the representative instance of the present invention, and in addition, the present invention can also have other a variety of specific implementationsMode, all technical schemes formed using equivalent substitution or equivalent transformation, is all fallen within the scope of protection of present invention.

Claims (6)

1. A kind of 1. earthquake alarm bimetallic tube, it is characterised in that：The bimetallic tube comprise at least be connected with each other the first bimetallic tube andSecond bimetallic tube, first bimetallic tube and second bimetallic tube include inner tube and outer tube, institute successively from inside to outsideThe main fiber and backhaul optical fiber being provided with inner tube in integrated are stated, branched auxiliary optical fiber is provided with the outer tube, it is described auxiliaryOptical fiber is helped to include process section optical fiber and reverse-running section optical fiber in integrated；First bimetallic tube and second bimetallic tube are relativeAnswer and the first connection end and second connection end head are respectively equipped with connection end, first connection end includes socket end, describedSecond connection end head includes socket end corresponding with the socket end, and the outside of the socket end is provided with external screw thread, the undertakingEnd inner side is provided with internal thread, and the inside of the end of the socket end is embedded with the first magnet, the tube wall of second bimetallic tubeInside be embedded with second magnet corresponding with first magnet, first magnet and second magnet are in mutually inhalingDraw state setting.
2. A kind of 2. earthquake alarm bimetallic tube according to claim 1, it is characterised in that：Outside first connection endSide is also fixedly connected with first flange, and the outside of the second connection end head is provided with the second method corresponding with the first flangeOrchid, the first flange are connected with the second flange by mechanical fixed part.
3. A kind of 3. earthquake alarm bimetallic tube according to claim 1, it is characterised in that：The auxiliary optical fiber is along described outerThe cross circular section of layer pipe is spaced apart setting in uniform circular.
4. A kind of 4. earthquake alarm bimetallic tube according to claim 1 or 3, it is characterised in that：The auxiliary optical fiber is setThere are 4.
5. A kind of 5. earthquake alarm bimetallic tube according to claim 1, it is characterised in that：The main fiber and the backhaulThe first position limitation protection body is filled between optical fiber and the tube wall of the inner tube；The auxiliary optical fiber and the tube wall of the outer tubeBetween be filled with the second position limitation protection body.
6. A kind of 6. earthquake alarm bimetallic tube according to claim 5, it is characterised in that：The first position limitation protection body andThe second position limitation protection body is polyurethane foam.