CN101424774A - Optical fiber joint sealing case and sealing method - Google Patents

Optical fiber joint sealing case and sealing method Download PDF

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Publication number
CN101424774A
CN101424774A CNA2007100475335A CN200710047533A CN101424774A CN 101424774 A CN101424774 A CN 101424774A CN A2007100475335 A CNA2007100475335 A CN A2007100475335A CN 200710047533 A CN200710047533 A CN 200710047533A CN 101424774 A CN101424774 A CN 101424774A
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CN
China
Prior art keywords
seal
pressing plate
fusion joining
joining disk
optical fiber
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Pending
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CNA2007100475335A
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Chinese (zh)
Inventor
雷震
巴青振
夏娟
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Tellabs Communication Technologies Shanghai Ltd
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Tellabs Communication Technologies Shanghai Ltd
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Publication date
Application filed by Tellabs Communication Technologies Shanghai Ltd filed Critical Tellabs Communication Technologies Shanghai Ltd
Priority to CNA2007100475335A priority Critical patent/CN101424774A/en
Publication of CN101424774A publication Critical patent/CN101424774A/en
Pending legal-status Critical Current

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Abstract

The invention relates to an improved optical fiber splice sealing box and a sealing method. The optical fiber splice sealing box is composed of an optical fiber fusion splice tray used for containing and fixing a main optical cable and a plurality of optical fibers, a sealing member used for matching the optical fiber fusion splice tray to fix the main optical cable and the optical fibers, a pressing plate used for fixing the sealing member on the optical fiber fusion splice tray, a square cavity box used for containing the optical fiber fusion splice tray and connected with the pressing plate and the sealing member to form a closed cavity. The optical fiber splice sealing method is as follows: the sealing member fixed with the main optical cable and the optical cables is arranged in a semi-closed cavity on one end of the optical fiber fusion splice tray and is fixedly connected with the optical fiber fusion splice tray through the pressing plate. The optical fiber splice sealing box uses an improved mechanical sealing form and has the advantages of reliable sealing method, simple and convenient operation, repeated use and convenient repair and market expansion.

Description

Fibre-optical splice seal box and encapsulating method
Technical field
The present invention relates to the optical communication field, particularly a kind of fibre-optical splice seal box and encapsulating method.
Background technology
In the optical communication field, usually adopt a main cable optical-fibre communications access service to be provided for all users of a specific region, such main cable is made up of the simple optical fiber that reaches tens, each root optical fiber can provide identical Communications service to designated user, and all designated users of this specific region are along the main cable series arrangement.
In ideal conditions, be directly connected to user side or optical network unit after every optical fiber is peeled off out from main cable.But in the actual conditions, main cable is continuous, and its length is also determined, can not change arbitrarily, and it is infeasible therefore independent optical fiber being peeled off at the construction field (site) fully.Common solution is to need to connect user's position with its protective seam strip off certain-length on main cable; one or more optical fiber that cut-out need connect also connects with the other optical fiber that is connected to user side or optical network unit; the optical fiber that has cut off is retained in the main cable, so that keep the continuous and complete of main cable.
The generally all uncontrollable out of doors environment in above-mentioned connection place is so guarantee that it is necessary that the optical fiber junction is avoided as Effect of Environmental such as humidity, temperature, oxidation even floods.
Usually such safeguard measure realizes with optical fiber joint sealing box.There are at present a lot of producers that the connector box of this function is provided on the home market, but the version complexity, on-the-spot poor operability.Such as aspect the sealing means, the existing connector boxs of great majority all adopt up and down the structure of two box bodys and two turnover line, its sealing means also is the two halves of using always up and down, or twine or fill with epoxy resin with slim rubber strip, the site operation complexity, basically can't reuse, be difficult to safeguard or dilatation.
Summary of the invention
The object of the present invention is to provide a kind of improved fibre-optical splice seal box and encapsulating method, it adopts the seal of an integral body, and is simple to operate, can reuse, and the maintenance dilatation is very convenient.
Another object of the present invention is to provide a kind of improved fibre-optical splice seal box and encapsulating method, its can be under guaranteeing the continuous situation of main cable the 1-4 root optical fiber in the main cable of welding simultaneously, have very strong operability.
Another object of the present invention is to provide a kind of fibre-optical splice seal box of square tubular, the sealing of sealing box one end needs the main cable that connects and needs welding optic fibre to be entered in the box by the other end, and an open end must seal the purpose that reaches protection.
To achieve these goals, fibre-optical splice seal box provided by the invention comprises:
The fused fiber splice dish, be used to hold and fixedly main cable and with the branch optical fiber of the main cable multifiber of welding mutually;
Seal is used to cooperate the fused fiber splice dish that main cable and multifiber are fixed; Pressing plate is used for seal is fixed in the fused fiber splice dish;
The square cavity box, it is the square shell of an end opening, being used to hold above-mentioned fused fiber splice dish and being formed by connecting with pressing plate and seal is the cavity of a sealing.
Described fused fiber splice dish is the whole fusion joining disk of a L type, comprises long end of fusion joining disk and the short end of fusion joining disk, and wherein fusion joining disk is short holds and have semi-enclosed cavity, and the shape of described semi-enclosed cavity is consistent with the shape of seal and be used for fixing and hold described seal.
The upper surface of the short end of described fusion joining disk is that sealing surface is that the pressing plate sealing surface connects by screw with the lower surface of pressing plate on the fusion joining disk, thereby the common primary sealing area that forms of the short end of pressing plate and fusion joining disk, have seal groove on this primary sealing area, primary sealing area is by O-ring seal and screw and the square cavity box formation closed cavity that is tightly connected.
The long end of described fusion joining disk comprises on fusion joining disk lower wall and the fusion joining disk and coiling, two more than half circular holes and four smaller part circular holes are arranged on the described semi-enclosed cavity, the position of wherein more than half circular hole is high slightly so that main cable is fixed in the fusion joining disk lower wall, and the position of described smaller part circular hole is low slightly so that multifiber is fixed on the fusion joining disk coils.
Have a plurality of big conical through-holes and fine taper through hole on the described seal, be used for fixing main cable and multifiber.
The material of described seal is an elastomeric compound, uses the mould one-shot forming.
The xsect of described square cavity box is near rectangle, and an end is semi-circular, and other end opening and band have mounting flange, and four jiaos have four screws and integrated location structure.
Described pressing plate is the L type, and the two ends of pressing plate have backing-up screw and integrated location structure.
Described integrated location structure is made up of screw, positioning convex, location shrinkage pool and embedding nut.
The material of described square cavity box, fused fiber splice dish and pressing plate is PBT, respectively the integral molded plastic moulding.
Fibre-optical splice encapsulating method provided by the invention comprises the steps:
The seal that is fixed with main cable and optical fiber is fit in the semi-enclosed cavity on fused fiber splice dish one end;
Pressing plate is fixedlyed connected with the fused fiber splice dish, thereby make seal under the radial compression of pressing plate, be out of shape and be full of the closed cavity that semi-enclosed cavity and pressing plate constitute and closely contact with optical fiber with main cable.
Fibre-optical splice seal box of the present invention has adopted improved mechanical seal mode, and its encapsulating method is reliable, and is simple to operation, and can reuse, and the maintenance dilatation is also very convenient.
Description of drawings
Fig. 1 is the whole decomposing schematic representation of fibre-optical splice seal box of the present invention;
Fig. 2 is the connection diagram of main cable and rubber seal;
Fig. 3 is L shaped fusion joining disk structural representation;
Fig. 4 is the decomposing schematic representation of main cable, rubber seal and L shaped fusion joining disk;
Fig. 5 is main cable among Fig. 4, rubber seal and L shaped fusion joining disk assembling synoptic diagram;
Fig. 6 is for being fit into the assembling synoptic diagram of optical fiber in assembly shown in Figure 5;
Fig. 7 is extruding rubber seal synoptic diagram;
Fig. 8 is for installing pressing plate dog screw synoptic diagram;
Fig. 9 is the locking pressure plate synoptic diagram;
Figure 10 is for installing the rubber seal synoptic diagram;
Figure 11 is the synoptic diagram of the L shaped fusion joining disk integral body of the good optical fiber of welding is packed into square cavity box and dog screw;
The synoptic diagram that Figure 12 finishes for fibre-optical splice seal box assembling of the present invention;
Another angle synoptic diagram that Figure 13 finishes for the assembling of the fibre-optical splice seal box among Figure 12.
Description of reference numerals:
1, square cavity box 2, L shaped fusion joining disk 3, pressing plate
4, rubber seal 5, rubber seal 6, backing-up screw
7, earthing screw 8, valve cock 9, PC cover plate
10, main cable 11, slit 12, big conical through-hole
14, fusion joining disk lower wall 15, pressing plate primary sealing area
16, coil on optical fiber 17, fine taper through hole 18, the fusion joining disk
20, dividing plate 21, bulkhead through-hole
22, seal groove 23, square cavity box openend 24, the long end of fusion joining disk
25, sealing surface 27, the short end of fusion joining disk on pressing plate sealing surface 26, the fusion joining disk
28, closed cavity 29, semi-enclosed cavity 30, more than half circular hole
31, smaller part circular hole 32, shallow cavity 33, positioning convex
34, location shrinkage pool 35, embedding nut
Embodiment
Fibre-optical splice seal box of the present invention is square tubular, and it has adopted an end to seal the open structure of an end, thereby has reduced seal length to greatest extent.Described square box body is the cavity of five face seals, and fusion joining disk is L shaped shape, and long end is fusion joining disk, and short end and pressing plate form sealing surface in conjunction with the back, and optical fiber is come in and gone out from joint.
Optical fiber pushes square box body in the fixing back of open space welding integral body, and lock-screw can be fixed joint.
The continuous main cable of length is clamp-oned in the through hole of seal by the slit of integral seal, the whole then cavity of sealing of putting into, pressing plate is from being pressed into, seal is in the cavity of sealing, material under pressure can only the radial compression through hole, thereby fit tightly the main cable of passing through hole, to reach the purpose of sealing.
This connector box mainly is installed in environment such as simple cabinet and uncontrollable environment such as corridor corridor equitemperature, humidity and oxidation of physical protection, thereby is used for providing protection to guarantee communication quality to the optical fiber junction.This connector box can reuse, and promptly main cable and optical fiber can repeat to pass in and out box body.
Below in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail.
Fig. 1 is the whole decomposing schematic representation of fibre-optical splice seal box of the present invention.
As shown in Figure 1, fibre-optical splice seal box of the present invention mainly is made up of following parts: square cavity box 1, L shaped fusion joining disk 2, pressing plate 3, seal 4, rubber seal 5, backing-up screw 6, earthing screw 7, valve cock 8 and PC cover plate 9 are formed.
Wherein, it is material that seal 4 adopts elastomeric compound, uses the mould one-shot forming, and the seal 4 in the present embodiment adopts rubber seal.Earthing screw 7 is used for shielding in case of necessity the ground connection of main cable, and valve cock 8 is used for inflating the impermeability of check box body in cavity.
Square cavity box 1, L shaped fusion joining disk 2, pressing plate 3 all adopt PBT as material, the moulding of whole part integral molded plastic.
Fig. 2 is the connection diagram of main cable and rubber seal.
As shown in the figure; on the main cable 10 the protective seam of strip off certain-length in order to and the welding mutually of user side optical fiber; main cable 10 is fit into the big conical through-hole 12 that is arranged in rubber seal 4 both sides by the slit on the rubber seal 4 11, thereby has guaranteed the continuous and complete of main cable 10.
Rubber seal 4 two ends have the big conical through-hole 12 in two cracks 11 with seam to import for continuous main cable, the fine taper through hole 17 of middle 4 sealings is used for the importing of user side optical fiber, the size of conical through- hole 12,17 determines that according to the diameter of main cable the design of conical through-hole can make things convenient for the importing of optical cable and the convenient elastic deformation that produces when being squeezed.
Fig. 3 is L shaped fusion joining disk structural representation.
As shown in the figure, L shaped fusion joining disk comprises long end 24 of fusion joining disk and the short end 27 of fusion joining disk.Wherein, the long end 24 of fusion joining disk is divided into two-layer up and down, is respectively on fusion joining disk lower wall 14 and the fusion joining disk and coils 18, separates by dividing plate 20 between two dishes up and down.
Comprise sealing surface 26 on the fusion joining disk that is used for connecting on the short end 27 of described fusion joining disk, have semi-enclosed cavity 29 on it, be used for fixing and hold rubber seal 4 with pressing plate 3.Rubber seal 4 among the present invention can repeat to put into seal chamber 29 easily.
Have two more than half circular holes 30 and four smaller part circular holes 31 on the semitight cavity 29, these two groups of semicircle orifices are positioned on two different planes, the axis of the big conical through-hole 12 at two ends is not with the axis of four middle fine taper through holes 17 not in one plane yet on the rubber seal 4 that semitight cavity 29 is held, the position of wherein more than half circular hole 30 and big conical through-hole 12 is high slightly moves towards fusion joining disk lower wall 14 with assurance main cable 10, and the position of smaller part circular hole 31 and fine taper through hole 17 is then low slightly to guarantee that optical fiber 16 moves towards to coil 18 on the fusion joining disk.
Fig. 4 is the decomposing schematic representation of main cable, rubber seal and L shaped fusion joining disk, and Fig. 5 is main cable among Fig. 4, rubber seal and L shaped fusion joining disk assembling synoptic diagram.
As shown in the figure, main cable 10 according to shown in Figure 2 be fit into rubber seal 4 after, integral body is put into the semi-enclosed cavity 29 on the L shaped fusion joining disk 2, regulates the length of main cable 10, and main cable 10 can reliablely and stablely be contained in the fusion joining disk lower wall 14 of L shaped fusion joining disk 2.
Fig. 6 is for being fit into the assembling synoptic diagram of optical fiber in assembly shown in Figure 5.
As shown in the figure, multifiber 16 passes dish 18 on the fusion joining disk that enters L shaped fusion joining disk 2 behind the fine taper through hole 17 on the rubber seal 4 and has obtained good fixing.
Fig. 7 is extruding rubber seal synoptic diagram.
As shown in the figure, rubber seal 4 semi-enclosed cavity 29 of shape unanimity with it of packing into correspondingly on rubber seal 4 and the semi-enclosed cavity 29 is provided with conical through- hole 12,17 and is used for penetrating of main cable and optical fiber.The rubber seal 4 of putting into closed cavity 29 is out of shape under pressing plate 3 extruding from top to down, because connecting back semi-enclosed cavity 29 with pressing plate 3 is closed, the material of rubber seal 4 can only be to the axially-movable of conical through- hole 12,17, thereby wherein main cable 10 and optical fiber 16 are passed in extruding, increased contact area and the contact pressure of rubber seal 4, reached the purpose of sealing with main cable and optical fiber.
Pressing plate 3 is the L type, becomes closed cavity after shallow cavity 32 engages with the semi-enclosed cavity on the L shaped fusion joining disk 2 29 on its sealing surface 25.
All has integrated location structure on pressing plate 3 and the L type fusion joining disk 2, comprise backing-up screw 6, positioning convex 33, location shrinkage pool 34 (see figure 8)s and embedding nut 35, be respectively applied for the connection of connection between pressing plate 3 and the L type fusion joining disk 2 and both connectors with square cavity box 1.This integrated location structure has reduced and has been connected and fixed the needed area of part, has made things convenient for the installation of part.
Fig. 8 is for installing pressing plate dog screw synoptic diagram.As shown in the figure, pressing plate 3 is connected by above-mentioned integrated location structure with L type fusion joining disk 2.
Wherein the edge of the dividing plate 20 on the L type fusion joining disk 2 have bulkhead through-hole 21 be used for from the branch optical fiber that main cable 10 is separated pass in case with optical fiber 16 weldings.
Fig. 9 is the locking pressure plate synoptic diagram.
As shown in the figure; the pressing plate 3 of packing into from top to down; with the backing-up screw 6 of going up both sides; do not twist too tight earlier; the optical fiber that has protective sleeve 16 that needs welding penetrated L shaped splicing box by fine taper through hole 17 and leave on the splicing box in the dish 18; at this moment lock backing-up screw 6 again, fix main cable 10 and optical fiber 16.
Branch optical fiber on the main cable of having cut off that needs welding 10 is passed bulkhead through-hole 21, use heat sealing machine on fusion joining disk, to coil 18 weldings.
Figure 10 is for installing the synoptic diagram of rubber seal.
Behind the welding optic fibre among Fig. 9, coiled optical fiber, push PC cover plate 9 with protection optical fiber.Pressing plate 3 is connected the common primary sealing area 15 that forms in back with the short end of splicing box, have seal groove 22 on it, and rubber seal 5 is inserted in from the long end of fusion joining disk, is fit in the seal groove 22.
Figure 11 is the synoptic diagram of the L shaped fusion joining disk integral body of the good optical fiber of welding is packed into square cavity box and dog screw.
As shown in the figure, the xsect of square cavity box 1 is near rectangle, and the top is semi-circular, and an end opening has mounting flange, and four jiaos is four backing-up screws and integrated location structure.
The assembly of installation among Figure 10 is inserted in square cavity box 1; square cavity box openend 23 forms closed cavity 28 with primary sealing area 15 by rubber seal 5 and backing-up screw 6 lock sealings, thereby has reached the good mechanical sealing in order to the main cable of protection the inside and the purpose of optical fiber.
The synoptic diagram that Figure 12 finishes for fibre-optical splice seal box assembling of the present invention; Another angle synoptic diagram that Figure 13 finishes for the assembling of the fibre-optical splice seal box among Figure 12.This fibre-optical splice seal box wherein of the present invention can be fixed with sling.
More than the preferred embodiments of the present invention are had been described in detail; but the present invention is not limited to above-mentioned particular implementation example; do not deviating under spirit of the present invention and the real situation thereof; skilled personnel can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong within the claims protection domain of the present invention.

Claims (11)

1, a kind of fibre-optical splice seal box is characterized in that, comprising:
Fused fiber splice dish (2), be used to hold and fixedly main cable (10) and with the branch optical fiber of the main cable multifiber of welding (16) mutually;
Seal (4) is used to cooperate fused fiber splice dish (2) that main cable (10) and multifiber (16) are fixed;
Pressing plate (3) is used for seal (4) is fixed in fused fiber splice dish (2);
Square cavity box (1), it is the square shell of an end opening, being used for receiving optical fiber fusion joining disk (2) and being formed by connecting with pressing plate (3) and seal (4) is a closed cavity.
2, fibre-optical splice seal box according to claim 1, it is characterized in that, described fused fiber splice dish (2) is the whole fusion joining disk of a L type, comprise the short end of long end of fusion joining disk (24) and fusion joining disk (27), wherein have semi-enclosed cavity (29) on the short end of fusion joining disk (27), the shape of the shape of described semi-enclosed cavity (29) and seal (4) is consistent and be used for fixing and hold described seal (4).
3, fibre-optical splice seal box according to claim 2, it is characterized in that, the upper surface of the short end of described fusion joining disk (27) is that the lower surface of the same pressing plate of sealing surface on the fusion joining disk (26) (3) is that pressing plate sealing surface (25) connects by screw, thereby pressing plate (3) forms primary sealing area (15) jointly with the short end of fusion joining disk (27), have seal groove (22) on this primary sealing area (15), primary sealing area (15) is tightly connected by O-ring seal and screw and square cavity box (1) and forms closed cavity (28).
4, fibre-optical splice seal box according to claim 2, it is characterized in that, the long end of described fusion joining disk (24) comprises dish (18) on fusion joining disk lower wall (14) and the fusion joining disk, two more than half circular holes (30) and four smaller part circular holes (31) are arranged on the described semi-enclosed cavity (29), wherein the position of more than half circular hole (30) is high slightly so that main cable (10) is fixed in fusion joining disk lower wall (14), and the position of described smaller part circular hole (31) is low slightly so that multifiber (16) is fixed in dish (18) on the fusion joining disk.
5, fibre-optical splice seal box according to claim 1 is characterized in that, has a plurality of big conical through-holes (12) and fine taper through hole (17) on the described seal (4), is respectively applied for fixedly main cable (10) and multifiber (16).
6, fibre-optical splice seal box according to claim 1 and 2 is characterized in that, the material of described seal (4) is an elastomeric compound, uses the mould one-shot forming.
7, fibre-optical splice seal box according to claim 1 is characterized in that, the xsect of described square cavity box (1) is near rectangle, and an end is semi-circular, and other end opening also has mounting flange, and four jiaos have four screws and integrated location structure.
8, fibre-optical splice seal box according to claim 1 is characterized in that, described pressing plate (3) is the L type, and the two ends of pressing plate (3) have backing-up screw and integrated location structure.
According to claim 7 or 8 described fibre-optical splice seal boxes, it is characterized in that 9, described integrated location structure is made up of screw (6), positioning convex (33), location shrinkage pool (34) and embedding nut (35).
10, fibre-optical splice seal box according to claim 1 is characterized in that, the material of described square cavity box (1), fused fiber splice dish (2) and pressing plate (3) is PBT, respectively the integral molded plastic moulding.
11, a kind of fibre-optical splice encapsulating method is characterized in that, comprises the steps:
The seal (4) that will be fixed with main cable (10) and optical fiber (16) is fit in the semi-enclosed cavity (29) on fused fiber splice dish (2) one ends;
Pressing plate (3) is fixedlyed connected with fused fiber splice dish (2), make seal (4) under the radial compression of pressing plate (3), be out of shape and be full of semi-enclosed cavity (29) with pressing plate (3) thus the closed cavity that constitutes closely contacts with optical fiber (16) with main cable (10).
CNA2007100475335A 2007-10-29 2007-10-29 Optical fiber joint sealing case and sealing method Pending CN101424774A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2007100475335A CN101424774A (en) 2007-10-29 2007-10-29 Optical fiber joint sealing case and sealing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007100475335A CN101424774A (en) 2007-10-29 2007-10-29 Optical fiber joint sealing case and sealing method

Publications (1)

Publication Number Publication Date
CN101424774A true CN101424774A (en) 2009-05-06

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CNA2007100475335A Pending CN101424774A (en) 2007-10-29 2007-10-29 Optical fiber joint sealing case and sealing method

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Country Link
CN (1) CN101424774A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102221735A (en) * 2010-04-16 2011-10-19 泰科电子(上海)有限公司 Cable connector box
CN105098791A (en) * 2014-05-20 2015-11-25 新能动力(北京)电气科技有限公司 Active dynamic reactive power compensation device
CN105625833A (en) * 2014-10-27 2016-06-01 因特瓦产品有限责任公司 Mechanical seal between actuator housing and cover and method for providing seal between actuator housing and cover
CN106154454A (en) * 2016-08-02 2016-11-23 国网山东省电力公司潍坊供电公司 The quick interconnecting device of optical cable
US20210373267A1 (en) * 2018-09-21 2021-12-02 Commscope Technologies Llc Fiber optic cable sealing device
CN114166387A (en) * 2021-12-16 2022-03-11 桂林汉西鸣科技有限责任公司 Flexible press-fit outlet connector of optical fiber sensor and design, installation and maintenance method thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102221735A (en) * 2010-04-16 2011-10-19 泰科电子(上海)有限公司 Cable connector box
CN102221735B (en) * 2010-04-16 2013-07-17 泰科电子(上海)有限公司 Cable connector box
CN105098791A (en) * 2014-05-20 2015-11-25 新能动力(北京)电气科技有限公司 Active dynamic reactive power compensation device
CN105625833A (en) * 2014-10-27 2016-06-01 因特瓦产品有限责任公司 Mechanical seal between actuator housing and cover and method for providing seal between actuator housing and cover
US10704691B2 (en) 2014-10-27 2020-07-07 Inteva Products, Llc Mechanical seal between an actuator housing and cover and method for providing a seal between an actuator housing and cover
CN106154454A (en) * 2016-08-02 2016-11-23 国网山东省电力公司潍坊供电公司 The quick interconnecting device of optical cable
US20210373267A1 (en) * 2018-09-21 2021-12-02 Commscope Technologies Llc Fiber optic cable sealing device
US11619790B2 (en) * 2018-09-21 2023-04-04 Commscope Technologies Llc Fiber optic cable sealing device
CN114166387A (en) * 2021-12-16 2022-03-11 桂林汉西鸣科技有限责任公司 Flexible press-fit outlet connector of optical fiber sensor and design, installation and maintenance method thereof

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Open date: 20090506