CN210953187U

CN210953187U - Connecting mechanism of optical fiber pressure gauge suitable for shaft installation

Info

Publication number: CN210953187U
Application number: CN201922497332.6U
Authority: CN
Inventors: 叶建良; 黄芳飞; 张敏; 邱海峻; 陆红锋; 何向阁; 刘玲; 陈爱华
Original assignee: Guangzhou Marine Geological Survey
Current assignee: Guangzhou Marine Geological Survey
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-07-07
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a connecting mechanism of an optical fiber pressure gauge suitable for shaft installation, which comprises an optical cable connecting component, a splicing box and an optical fiber pressure gauge, wherein the splicing box comprises a box body and an end cover arranged on the box body, the box body is of a hollow structure, the upper end and the lower end of the box body are both provided with first through holes which penetrate through the hollow structure, the optical cable connecting component is connected with the upper end of the box body, and the optical fiber pressure gauge is connected with the lower end of the box body; the optical cable connecting assembly is used for fixing the stripped end part of the optical cable package so that the optical fiber enters the splicing box through the first through hole; and the optical fiber pressure gauge is used for being connected with the optical fiber in the splicing box through the first through hole. The utility model discloses in, through will splicing the box setting between optical cable coupling assembling and optic fibre pressure gauge to arrange the good optic fibre melting point of butt fusion in splicing the box and protect, reduce the protection degree of difficulty of the terminal and optic fibre pressure gauge of optical cable.

Description

Connecting mechanism of optical fiber pressure gauge suitable for shaft installation

Technical Field

The utility model relates to an optical fiber connection mechanism especially relates to a coupling mechanism of optical fiber pressure gauge suitable for pit shaft installation.

Background

In the prior art, the connection of optical fibers is more complicated than the connection of electric wires, a special welding tool is needed to weld two sections of optical fibers together, and meanwhile, a welding point needs to be well protected. Meanwhile, when an existing manufacturer manufactures optical fibers into an optical cable, the optical fibers are usually packaged by adopting double-layer steel wire armoring and stainless steel pipes. When the steel wire armored optical cable is connected with the optical fiber pressure gauge, the sealing link is located in the stainless steel tube part with smaller specification, so that the connected optical fiber is placed everywhere, the conventional splicing tube connection cannot be used, the melting point of the spliced optical fiber cannot be well protected, and the protection difficulty of the optical fiber and the fusion point is increased.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a coupling mechanism suitable for optical fiber pressure gauge of pit shaft installation, it can solve the problem that the protection degree of difficulty is big of optic fibre and splice point.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a connecting mechanism of an optical fiber pressure gauge suitable for shaft installation comprises an optical cable connecting component, a splicing box and an optical fiber pressure gauge, wherein the splicing box comprises a box body and an end cover arranged on the wall of the box body, the box body is of a hollow structure, the upper end and the lower end of the box body are respectively provided with a first through hole penetrating through the hollow structure, the optical cable connecting component is connected with the upper end of the box body, and the optical fiber pressure gauge is connected with the lower end of the box body; the optical cable connecting assembly is used for fixing the stripping end part of the optical cable package so that the optical fiber enters the box body through the first through hole; and the optical fiber pressure gauge is used for being connected with the optical fiber in the box body through the first through hole.

Preferably, the box body is integrally of an arc-shaped structure.

Preferably, the optical cable connecting assembly comprises a first clamping device, a second clamping device and a first joint, the second clamping device is arranged between the first clamping device and the first joint, and the first joint is in screw connection with the upper end of the box body; the first clamping device is used for clamping the stripped end part of the double-layer steel wire package; the second clamping device is used for fixing the stripping end part of the stainless steel tube package so that the optical fiber enters the box body through the first through hole.

Preferably, the optical fiber pressure gauge comprises a shell and an optical fiber pressure sensor arranged in the shell, a cavity is arranged at one end of the shell, a plurality of second through holes communicated with the outside are formed in the cavity, a second connector is arranged at one end of the shell, the output end of the optical fiber pressure sensor is connected with the lower end of the box body through threads through the second connector, and the input end of the optical fiber pressure sensor is connected with the cavity.

Preferably, the optical cable connection assembly further comprises a first sealing element disposed between the optical cable connection assembly and the enclosure body.

Preferably, the fiber pressure gauge further comprises a second sealing element arranged between the fiber pressure gauge and the box body

Compared with the prior art, the beneficial effects of the utility model reside in that:

realize being connected of optical cable and optic fibre pressure gauge through splicing box, splicing box inside is hollow structure, can put the optical fiber dish that the butt fusion is good inside, carries out fine protection to the splice point, and splicing box inner and outer wall has crooked radian simultaneously, and laminating wellbore wall that this radian can be fine increases the installation reliability, avoids splicing box and the friction of pit shaft.

Drawings

Fig. 1 is a schematic structural diagram of a connection mechanism of an optical fiber pressure gauge suitable for installation in a shaft according to the present invention.

Fig. 2 is a sectional view taken along the line a-a of fig. 1.

Fig. 3 is a top view of the connection mechanism of the fiber pressure gauge suitable for use in a wellbore installation according to the present invention.

In the figure: 1-a cable connection assembly; 11-a first clamping device; 12-a second clamping device; 13-a first joint; 2-splicing box; 21-a box body; 22-end cap; 23-a first via hole; 3-a fiber optic pressure gauge; 31-a housing; 311-a cavity; 312 — a second via; 32-fiber optic pressure sensor; 33-a second linker; 4-a first sealing element; 5-a second sealing element.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention will be further described with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1 to 3, a connection mechanism for a fiber pressure gauge suitable for wellbore installation includes a fiber optic cable connection assembly 1, a splicing box 2 and a fiber pressure gauge 3, where the splicing box 2 includes a box body 21 and an end cover 22 disposed on the box body 21, the box body 21 is a hollow structure, and both upper and lower ends of the box body 21 are provided with first through holes 23 penetrating through the hollow structure, the fiber optic cable connection assembly 1 is connected with the upper end of the box body 21, preferably, the connection mechanism further includes a first sealing element 4, the first sealing element 4 is disposed between the fiber optic cable connection assembly 1 and the box body 21, the fiber pressure gauge 3 is connected with the lower end of the box body 21, preferably, the connection mechanism further includes a second sealing element 5, and the second sealing element 5 is disposed between the fiber pressure gauge 3 and the box body 21; the optical cable connecting assembly 1 is used for fixing the stripped end part of the optical cable package so that the optical fiber enters the splice closure 2 through the first through hole 23; and the optical fiber pressure gauge 3 is used for being connected with the optical fiber in the splicing box 2 through the first through hole 23.

Specifically, the box body 21 is integrally of an arc-shaped structure, and the end faces of the left side and the right side are both deviated to the same side. The optical cable connecting assembly 1 comprises a first clamping device 11, a second clamping device 12 and a first joint 13, wherein the second clamping device 12 is arranged between the first clamping device 11 and the first joint 13, and the first joint 13 is in screw connection with the upper end of a box body 21; the first clamping device 11 is used for clamping the stripped end part of the double-layer steel wire package; the second clamping device 12 is used for fixing the stripped end of the stainless steel tube package so that the optical fiber enters the box body 21 through the first through hole 23. The optical fiber pressure gauge 3 comprises a shell 31 and an optical fiber pressure sensor 32 arranged in the shell 31, one end of the shell 31 is provided with a cavity 311, the cavity 311 is provided with a plurality of second through holes 312 communicated with the outside, one end of the shell 31 is provided with a second connector 33, the output end of the optical fiber pressure sensor 32 is connected with the lower end of the box body 21 through the second connector 33 in a threaded manner, and the input end of the optical fiber pressure sensor 32 is connected with the cavity 311.

Specifically, the working principle and the components of the present invention are specifically described as follows:

as shown in fig. 1 to 3, in this embodiment, the connection mechanism of the optical fiber pressure gauge suitable for installation in a shaft is applied to the shaft, in order to increase the installation reliability, the whole body 21 of the splicing box 2 is in an arc-shaped structure, and the end faces of the left side and the right side are both deviated to the same side, so that the splicing box 2 can be better attached to the shaft, the installation difficulty is reduced, and the friction between the splicing box 2 and the shaft can be avoided.

In this embodiment, earlier optical cable coupling assembling 1 through the upper end screwed connection of first joint 13 with box body 21 to and optical fiber pressure gauge 3 passes through the lower extreme screwed connection of second joint 33 with box body 21, and is preferred, still includes first sealing element 4 and second sealing element 5, and wherein first sealing element 4 and second sealing element 5 can be sealing elements such as sealing washer, gasket and sealing ring, first sealing element 4 sets up between optical cable coupling assembling 1 and box body 21, second sealing element 5 sets up between optical fiber pressure gauge 3 and box body 21, improves the sealed effect of continuous box 2, avoids preventing that optic fibre and the splice point placed in box body 21 from receiving the damage. When optical fiber connection is carried out, the stripped end part of the armored optical cable is clamped on the optical cable connection assembly 1, specifically, the first clamping device 11 is a three-cone sleeve, the package of the double-layer steel wire of the armored optical cable is respectively clamped between the three mutually matched cone sleeves, the second clamping device 12 is a clamping sleeve, and the package of the stainless steel pipe of the armored optical cable is clamped in the clamping sleeve, so that the optical fiber enters the splicing box 2 through the first through hole 23. Meanwhile, the optical fiber at the output end of the optical fiber pressure sensor 32 is introduced into the box body 21 of the splicing box 2 to be fusion-spliced with the optical fiber at the end of the optical cable. After the fusion splicing is completed, the optical fiber disc is placed inside the box body 21, specifically, the hollow structure of the box body 21 is an internal space with a bending diameter meeting the requirements of the optical fiber, and then the end cover 22 of the splicing box 2 is covered on the box body 21, preferably, sealing elements similar to a sealing ring, a gasket, a sealing ring and the like are further arranged between the end cover 22 and the box body 21, so that a better sealing environment is formed inside the box body 21, and a fusion splicing point and the optical fiber are protected.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims

1. The utility model provides a coupling mechanism suitable for optical fiber pressure gauge of pit shaft installation which characterized in that: the splicing box comprises a box body and an end cover arranged on the box body, the box body is of a hollow structure, the upper end and the lower end of the box body are respectively provided with a first through hole penetrating through the hollow structure, the optical cable connecting assembly is connected with the upper end of the box body, and the optical fiber pressure gauge is connected with the lower end of the box body; the optical cable connecting assembly is used for fixing the stripping end part of the optical cable package so that the optical fiber enters the box body through the first through hole; and the optical fiber pressure gauge is used for being connected with the optical fiber in the box body through the first through hole.

2. The attachment mechanism for a fiber optic pressure gauge adapted for wellbore installation of claim 1, wherein: the box body is integrally of an arc-shaped structure.

3. The attachment mechanism for a fiber optic pressure gauge adapted for wellbore installation of claim 1, wherein: the optical cable connecting assembly comprises a first clamping device, a second clamping device and a first joint, wherein the second clamping device is arranged between the first clamping device and the first joint, and the first joint is in screw connection with the upper end of the box body; the first clamping device is used for clamping the stripped end part of the double-layer steel wire package; the second clamping device is used for fixing the stripping end part of the stainless steel tube package so that the optical fiber enters the box body through the first through hole.

4. The attachment mechanism for a fiber optic pressure gauge adapted for wellbore installation of claim 1, wherein: the optical fiber pressure gauge comprises a shell and an optical fiber pressure sensor arranged in the shell, wherein one end of the shell is provided with a cavity, the cavity is provided with a plurality of second through holes communicated with the outside, one end of the shell is provided with a second connector, the output end of the optical fiber pressure sensor is connected with the lower end of the box body through the second connector in a threaded manner, and the input end of the optical fiber pressure sensor is connected with the cavity.

5. The attachment mechanism for a fiber optic pressure gauge adapted for wellbore installation of claim 1, wherein: also included is a first sealing element disposed between the cable connection assembly and the enclosure body.

6. The attachment mechanism for a fiber optic pressure gauge adapted for wellbore installation of claim 1, wherein: the fiber pressure gauge further comprises a second sealing element, and the second sealing element is arranged between the fiber pressure gauge and the box body.