CN106918888A - For the port sealing device of cable splice closure - Google Patents
For the port sealing device of cable splice closure Download PDFInfo
- Publication number
- CN106918888A CN106918888A CN201710301757.8A CN201710301757A CN106918888A CN 106918888 A CN106918888 A CN 106918888A CN 201710301757 A CN201710301757 A CN 201710301757A CN 106918888 A CN106918888 A CN 106918888A
- Authority
- CN
- China
- Prior art keywords
- cable
- adapter sleeve
- cable pipe
- elastic seal
- seal cartridge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
- G02B6/4446—Cable boxes, e.g. splicing boxes with two or more multi fibre cables
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Cable Accessories (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The present invention relates to a kind of port sealing device for cable splice closure, cassette bottom is provided with overhanging at least two and enters cable pipe at wainscot sheathing two ends, respectively enter the elastic seal cartridge for being provided with cable pipe and being used for that optical cable to be sealed and fixed, secondary seal connector and attachment cap, there is the loop at internal thread segment and rear portion in secondary seal connector in the hole of adapter sleeve, outer adapter sleeve periphery is provided with external screw thread and the reduced diameter portion formed by multiple axial notch positioned at external screw thread outside, elastic seal cartridge is sealingly mounted at into the hole of cable pipe, the interior adapter sleeve of secondary seal connector is screwed in on cable pipe and the outer annular edge of elastic seal cartridge is squeezed in between the end face and the loop of interior adapter sleeve of cable pipe, attachment cap spins on outer adapter sleeve and extrudes reduced diameter portion radial contraction and being wrapped in optical cable carries out sealing fixation.The present invention is rational in infrastructure, and assembling is simple, multi-stage sealed protection can be realized to inlet wire optical cable, with preferable air-tightness.
Description
Technical field
The present invention relates to a kind of port sealing device for cable splice closure, belong to the optical fiber distributing skill of optic communication transmission
Art field.
Background technology
At present, the prevailing transmission mode for having evolved into various communication networks of optical fiber cable.Its transmission capacity is big, transmission speed
Degree is fast, strong antijamming capability, the particular advantages such as small volume, lightweight, it is entered the popular visual field step by step.
As informatization deepens continuously, Optical Access Network is built like a raging fire.How according to network structure planning with
And the actual conditions of engineering construction, reasonable design and selection optical cable transmission distribution plant, it is the communication fortune of full commercial running at present
The problem that battalion headquarter's door and manufacture research and development department consider in the decision-making of project construction schemes.Safest network guarantee, most pass through
Dilatation etc. that the arrangement and method for construction of Ji, the low cost of overall network build, network continues be Optical Access Network design with the weight built in
Weight.The network structure of Optical Access Network will simultaneously meet both sides demand：Firstth, optical networking will be carried for upper strata access device
For flexible, reliable physical connection, the networking requirements of various topological structures, such as tree-like, star, annular, to each are adapted to
Plant business demand and unified carrying is provided.Second, in access network aspect, the demand of user is not only rich and varied, and change is soon, no
Certainty is big.In this regard, Optical Access Network need to use for reference traditional copper cable planar network architecture, using the concept of layering, by access network point main body
Partly (such as backbone optical cable) and tip portion (such as leading in cable), network is realized by stablizing relatively for retainer body part
Can run, can manage and sustainable development, terminal user is adapted to by the flexible deployment and quick response of tip portion not
Certainty simultaneously realizes flexible access.
Cable splice closure is the light in fused fiber splice, distribution, scheduling, the test being widely used between Optical Access Network optical cable
Communication terminal device, is the hinge of signal transmission between optical signal transceiver equipment, scheduling and conversion, the scheduling with optical signal,
The functions such as switching.Cable splice closure is made up of cassette bottom and lid as disclosed in CN 104238056A, several is set in cassette bottom and is melted
Disk is connect, the perforate of connector box two ends sets annular disjunctor seal between cassette bottom and lid, by secure component by lid and cassette bottom machine
Tool is sealed, and is respectively provided with above the two ends of disjunctor seal in sealing and covered, and the end of lid and disjunctor seal is formed below in sealing
Set fluted with plastic washer in two holes for optical cables, holes for optical cables, be somebody's turn to do and fixed seat is provided with cassette bottom, by fixed seat to line
Cable is fixed, and is entering when cable is operated, it is necessary to take a long time, and sealing hardly results in guarantee after maintenance, it is impossible to adapt to
Part such as pipeline, the severe place of buried use environment.
The content of the invention
Rational in infrastructure it is an object of the invention to provide one kind, assembling is simple, multi-stage sealed protection can be realized to inlet wire optical cable
The port sealing device for cable splice closure.
The present invention is that the technical scheme for reaching above-mentioned purpose is：A kind of port sealing device for cable splice closure, its
It is characterised by：Cassette bottom is provided with overhanging at least two and enters cable pipe at wainscot sheathing two ends, and external screw thread is provided with the cable pipe that enters of hollow form,
Respectively enter elastic seal cartridge, secondary seal connector and the connection for being provided with cable pipe and being used to that optical cable to be sealed and fixed
Cap, described secondary seal connector has interior adapter sleeve and outer adapter sleeve, in the hole of interior adapter sleeve with internal thread segment with after
The loop in portion, outer adapter sleeve periphery is provided with external screw thread and the varying diameter portion formed by multiple axial notch positioned at external screw thread outside
Point, elastic seal cartridge is sealingly mounted at into the hole of cable pipe, and elastic seal cartridge has the taper hole of interior expansion from inside to outside, described
The taper hole energy compressing and stretching of outer adapter sleeve and the sealing that connects with optical cable, the interior adapter sleeve of secondary seal connector are screwed in into cable pipe
Above and the outer annular edge of elastic seal cartridge is squeezed in between the end face and the loop of interior adapter sleeve of cable pipe, attachment cap is screwed in
On outer adapter sleeve and extrude reduced diameter portion radial contraction and being wrapped in optical cable carries out sealing fixation.
Wherein：Described elastic seal cartridge inner side periphery has for the conical surface of guiding and positioned at conical surface rear portion at least
Three external diameters anchor ring incremented by successively, elastic packing be set on into cable pipe with enter the cable seal of tube and be connected.
There is step-shaped hole, each anchor ring of elastic seal cartridge is arranged on into cable pipe pair in the described apertura lateralis for entering cable pipe
It is oriented in the step-shaped hole answered, is sealed and spacing.
The interior adapter sleeve periphery of the secondary seal connector is polygons more than both sides, the reduced diameter portion of outer adapter sleeve
On axial notch be along the circumferential direction symmetrical arranged, and axial notch radially be arranged in parallel or with radial direction in inclined-plane set.
Diameter of bore of the diameter of bore of the interior adapter sleeve more than outer adapter sleeve.
For the port sealing device of cable splice closure, what at cassette bottom two ends, wainscot sheathing was provided with overhanging one enters cable to the present invention
Pipe, makes backbone optical cable, feeder line optic cable and bifurcation optical cable be introduced in box body by entering cable pipe, and respectively enters to be provided with cable pipe and can be removably mounted simultaneously
For the elastic seal cartridge, secondary seal connector and the attachment cap that are sealed to optical cable and fixed, elastic seal cartridge sealing peace
It is mounted in into cable pipe, by the taper hole of elastic seal cartridge interior expansion from inside to outside, elastic packing is enclosed within diameter direction compressible
When stretching, therefore box body can be entered for different-diameter optical cable, it is adjusted by the decrement of elastic seal cartridge, can be with light
Cable forms good sealing.Secondary seal connector of the present invention has interior adapter sleeve and outer adapter sleeve, has in the hole of interior adapter sleeve
There are internal thread segment and loop, when secondary seal connector is screwed in on cable pipe, the outer annular edge of elastic seal cartridge can be extruded
Between the loop for entering the end face of cable pipe and interior adapter sleeve, realize end face seal and sealing property can be strengthened.Two grades of the present invention
The reduced diameter portion formed with multiple axial notch on the outer adapter sleeve of sealed connecting component on the outside of external screw thread, in attachment cap rotation
It is connected on outer adapter sleeve, the reduced diameter portion of the outer adapter sleeve of secondary seal connector can be extruded, makes lateral outside secondary seal connector
Inside reducing into cable mouthful diameter, and be wrapped in optical cable carries out sealing fixation, forms outermost end sealing protection, therefore port of the invention
Sealing device can realize multistage protection, by external activity influence interior cables welding interface displacement with damage, new clothes with and
Safeguard after repeating to assemble, its barrier propterty reaches IP68 grades of requirement, the protection method of more traditional two semicircles has preferably
Barrier propterty.Port sealing device of the invention is rational in infrastructure, with preferable air-tightness, work(is protected with optical cable welding difference
Can, assembling simple operations are convenient, and service response is rapid, and it is various severe that enable is applied to immersion, high temperature, humidity, intensive ultraviolet etc.
Environment.
Brief description of the drawings
Embodiments of the invention are described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the dimensional structure diagram that port sealing device of the present invention is arranged on box body.
Fig. 2 is the cross section structure diagram of port sealing device of the present invention.
Fig. 3 is the structural representation that cable splice closure opens the lid.
Fig. 4 is the B of Fig. 3 to structural representation.
Fig. 5 is the configuration schematic diagram of elastic seal cartridge of the present invention, secondary seal connector and attachment cap.
Fig. 6 is the cross section structure diagram of elastic seal cartridge of the present invention, secondary seal connector and attachment cap.
Wherein：1-attachment cap, 2-secondary seal connector, 2-1-outer adapter sleeve, 2-21-reduced diameter portion, 2-22-
Axial notch, 2-2-interior adapter sleeve, 3-lid, 3-1-lower annular groove, 4-cassette bottom, 4-1-enter cable pipe, 4-2-wainscot sheathing,
4-3-upper annular groove, 5-annular buckle, 6-pull finger panel, 7-elastic seal cartridge, 7-1-outer annular edge, 7-2-anchor ring,
7-3-the conical surface, 7-4-taper hole, 8-prefabricated sealing joint strip, 9-tightening stud, 10-earthing rod, 11-optical cable welding protection support
Disk, 12-weight tray.
Specific embodiment
As shown in Fig. 1~6, the present invention is used for the port sealing device of cable splice closure, wainscot sheathing 4- of the cassette bottom 4 at two ends
2 are provided with overhanging at least two enters cable pipe 4-1, and cassette bottom 4 has curved plate and the surrounding wainscot sheathing 4-2 with curved plate one
The lower chamber that welding group is fixed for installing optical cable is formed, makes cassette bottom 4 that the operating space of optical cable welding distribution is integrally formed, with box
Lid 3 fit after be internally formed hexahedral confined space, this enters cable pipe 4-1 and is structure as a whole with cassette bottom 4, can by backbone optical cable,
Feeder line optic cable and bifurcation optical cable are entered in box body by entering cable pipe 4-1, and external screw thread is provided with the cable pipe 4-1 that enters of hollow form, respectively enter cable
Elastic seal cartridge 7, secondary seal connector 2 and the attachment cap that can be used to that optical cable to be sealed and fixed are installed on pipe 4-1
1。
As shown in Fig. 1~6, secondary seal connector 2 of the invention has interior adapter sleeve 2-2 and outer adapter sleeve 2-1, interior company
There is the loop at internal thread segment and rear portion in the hole of female connector 2-2, and outer adapter sleeve 2-1 peripheries are provided with external screw thread and positioned at outer spiral shell
The reduced diameter portion 2-21 that line outside is formed by multiple axial notch 2-22, the internal diameter of the interior adapter sleeve 2-2 of secondary seal connector 2
More than the internal diameter of outer adapter sleeve 2-1, the interior adapter sleeve 2-2 peripheries of secondary seal connector 2 are polygons more than both sides, are such as adopted
With hexagon, revolved by hand and be threaded onto the screw thread on interior adapter sleeve 2-2 on cable pipe 4-1 by tool operation.
As shown in Fig. 1~6, elastic seal cartridge of the invention 7 is sealingly mounted at into the hole of cable pipe 4-1, and elastic packing
Set 7 has the taper hole 7-4 of interior expansion from inside to outside, and the elastic seal cartridge 7 uses the rubber parts of compressible stretching, extension, described taper hole
7-4 energy compressing and stretchings and the sealing that connects with optical cable, make elastic seal cartridge 7 in diameter direction and axially compressible stretching, extension, for not
After passing through the taper hole 7-4 of elastic seal cartridge 7 with diameter optical cable, realize adjusting by its decrement, optical cable is carried out to realize one-level
Sealing protection.As shown in Fig. 1~6, the interior adapter sleeve 2-2 of secondary seal connector 2 of the invention is screwed in on cable pipe 4-1 simultaneously
The outer annular edge 7-1 of elastic seal cartridge 7 is squeezed in between the end face and the loop of interior adapter sleeve 2-2 of cable pipe 4-1, in elasticity
While the internal diameter of sealing shroud 7 realizes sealing with optical cable, the outer annular edge 7-1 of elastic seal cartridge 7 will enter cable pipe 4-1 and secondary seal
Connector 2 realizes that secondary seal is protected, and attachment cap 1 spins on outer adapter sleeve 2-1 and extrudes reduced diameter portion 2-21 radial contractions
And being wrapped in optical cable carries out sealing fixation.The periphery of attachment cap of the invention 1 is polygon such as orthohexagonal, is easily installed in two grades
On sealed connecting component 2, attachment cap 1 spins when on outer adapter sleeve 2-1, the reduced diameter portion 2-21 of extruding secondary seal connector 2,
It is inwardly reduced into cable mouthful diameter, form outermost sealing protection, forming many places by port sealing device of the invention wraps
The multistage protection effect for being rolled on optical cable and inwardly compressing, makes the barrier propterty of cable splice closure reach IP68 grades.
As shown in Fig. 4~6, the axial notch 2-22 in the varying diameter portion of the outer adapter sleeve 2-1 of the present invention is along the circumferential direction symmetrical
Set, and axial notch 2-22 on circumferencial direction radially be arranged in parallel or is set in inclined-plane with radial direction, the inclined-plane can be flat
Face or cambered surface, when reduced diameter portion 2-21 is inwardly reduced into cable mouthful diameter, compress optical cable and realize end by the teeth portion that it is formed
Portion seals and fixed.
As shown in Fig. 2,5,6, the inner side periphery of elastic seal cartridge of the present invention 7 is with the conical surface 7-3 for guiding and is located at
At least three external diameters at conical surface 7-3 rear portions anchor ring 7-2 incremented by successively, elastic seal cartridge 7 is conducive to by conical surface 7-3 structures
In the hole for entering cable pipe 4-1 of cassette bottom of promoting comprehensively 4, and rear portion extends multiple faces of cylinder that step is formed, and makes elastic seal cartridge 7
Anchor ring 7-2 is tightly connected with the endoporus for entering cable pipe 4-1.As shown in Fig. 5,6, the present invention enters to be had in the apertura lateralis of cable pipe 4-1
Step-shaped hole, each anchor ring 7-2 of elastic seal cartridge 7 be arranged on into the corresponding step-shaped holes of cable pipe 4-1 be oriented to, seal and
Spacing effect, is oriented to by roundlet anchor ring 7-2, and the anchor ring 7-2 of centre is sealed and the anchor ring 7- of maximum
2 carry out spacing and further sealing, have both facilitated and have installed, and can carry out sealing protection to inlet wire optical cable again.
As shown in Fig. 1~6, inlet wire optical cable is penetrated in box body from the hole for entering cable pipe 4-1 of cassette bottom 4, by optical cable baring
Certain length, the position that the optical cable of non-stripping part is buckled by the T-shaped that larynx hoop is fixed on weight tray 12, the optical cable after stripping
Middle metallic strength member is fixed through the Kong Bingyong tightenings stud 9 of earthing rod 10, and the optical cable after stripping enters optical cable welding and protects support
Welding is carried out in the fusion joining disk of disk 11, after the completion of lightguide cable link welding, elastic seal cartridge 7 is enclosed within the optical cable of non-stripping part
Go up and be pushed into the hole of cable pipe 4-1, secondary seal connector 2 is spun elastic seal cartridge 7 is extruded on cable pipe 4-1, make
The radial variations of elastic seal cartridge 7 and with enter cable pipe 4-1 and optical cable sealing, while making to be connected with secondary seal into cable pipe 4-1 end faces
Part 2 is sealed, and attachment cap 1 is screwed on the outer adapter sleeve 2-1 of secondary seal connector 2, extruding secondary seal connector 2
Reduced diameter portion 2-21 inwardly reduce into cable mouthful diameter, multi-stage sealed and fixed effect is realized to inlet wire optical cable, it is not outside
The displacement and damage of activity influence interior cables welding interface, by the lower annular groove 3-1 alignments of lid 3 installed in the upper of cassette bottom 4
Prefabricated sealing joint strip 8 in annular groove 4-3, close lid 3, will be upper on the lower flange on lid 3 and cassette bottom 4 by fastener
Flange is connected, or as shown in Figure 1, finger panel 6 and the annular formation of buckle 5 two is pulled mutually using on lid 3 and cassette bottom 4
Mutually the component of occlusion, pulls to be hinged on lid 3 and pulls finger panel 6, and the lower ring side of annular buckle 5 is sleeved on the button of cassette bottom 4
Seat and be located at upper flange bottom, annular buckle 5 upper ring while be arranged on pull finger panel 6 on locking draw-in groove in, lower ring while
To cassette bottom 4 upper flange apply thrust, by prefabricated sealing joint strip 8 be crimped on lid 3 lower annular groove 3-1 and cassette bottom 4 it is upper
In annular groove 4-3, make to form sealed environment in box body, it is ensured that lightguide cable link joint quality.
Claims (5)
1. a kind of port sealing device for cable splice closure, it is characterised in that：Wainscot sheathing (4-2) of the cassette bottom (4) at two ends
It is provided with overhanging at least two and enters cable pipe (4-1), external screw thread is provided with the cable pipe (4-1) that enters of hollow form, respectively enters on cable pipe (4-1)
Elastic seal cartridge (7), secondary seal connector (2) and the attachment cap (1) that can be used to that optical cable to be sealed and fixed are installed,
Described secondary seal connector (2) has with interior adapter sleeve (2-2) and outer adapter sleeve (2-1) in the hole of interior adapter sleeve (2-2)
There is the loop at internal thread segment and rear portion, outer adapter sleeve (2-1) periphery is provided with external screw thread and positioned at external screw thread outside by multiple axles
To the reduced diameter portion (2-21) that notch (2-22) is formed, elastic seal cartridge (7) is sealingly mounted at into the hole of cable pipe (4-1), and
Taper hole (7-4) of the elastic seal cartridge (7) with interior expansion from inside to outside, the taper hole (7-4) of the elastic seal cartridge (7) can compress
Stretch and the sealing that connects with optical cable, the interior adapter sleeve (2-2) of secondary seal connector (2) is screwed in on cable pipe (4-1) and will
The outer annular edge (7-1) of elastic seal cartridge (7) is squeezed in between the loop of the end face with interior adapter sleeve (2-2) of cable pipe (4-1),
Attachment cap (1) spin on outer adapter sleeve (2-1) and extrude reduced diameter portion (2-21) radial contraction and be wrapped in optical cable carry out it is close
Sealing is determined.
2. the port sealing device for cable splice closure according to claim 1, it is characterised in that：Described is elastic close
Big envelope (7) inner side periphery has the conical surface (7-3) for guiding and at least three external diameters positioned at the conical surface (7-3) rear portion successively
Incremental anchor ring (7-2), elastic seal cartridge (7) be arranged on into cable pipe (4-1) with enter cable pipe (4-1) and be tightly connected.
3. the port sealing device for cable splice closure according to claim 2, it is characterised in that：Described enters cable pipe
Each anchor ring (7-2) in the apertura lateralis of (4-1) with step-shaped hole, elastic seal cartridge (7) is arranged on into cable pipe (4-1) correspondence
Step-shaped hole in be oriented to, sealed and spacing.
4. the port sealing device for cable splice closure according to claim 1, it is characterised in that：The secondary seal
Interior adapter sleeve (2-2) periphery of connector (2) is polygons more than both sides, the reduced diameter portion (2-21) of outer adapter sleeve (2-1)
On axial notch (2-22) be along the circumferential direction symmetrical arranged, and axial notch (2-22) radially be arranged in parallel or with radial direction be in
Inclined-plane is set.
5. the port sealing device for cable splice closure according to claim 1, it is characterised in that：The interior adapter sleeve
Diameter of bore of the diameter of bore of (2-2) more than outer adapter sleeve (2-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710301757.8A CN106918888B (en) | 2017-05-02 | 2017-05-02 | Port sealing device for optical cable joint box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710301757.8A CN106918888B (en) | 2017-05-02 | 2017-05-02 | Port sealing device for optical cable joint box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106918888A true CN106918888A (en) | 2017-07-04 |
| CN106918888B CN106918888B (en) | 2023-05-16 |
Family
ID=59568531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710301757.8A Active CN106918888B (en) | 2017-05-02 | 2017-05-02 | Port sealing device for optical cable joint box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106918888B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990158A (en) * | 2017-11-27 | 2018-05-04 | 安徽文尧智能光电科技有限公司 | A kind of luminescence unit of LED line light source |
| CN113555271A (en) * | 2021-05-21 | 2021-10-26 | 闫琪明 | Sealing waterproof device for photomultiplier |
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|---|---|---|---|---|
| CN101271182A (en) * | 2007-03-22 | 2008-09-24 | 茹志康 | Joint box sealing device adopting screw cap rotating impacted sealing ring automatic enclasping optical fibre cable |
| CN104238056A (en) * | 2014-09-24 | 2014-12-24 | 昆山市大唐通讯设备有限公司 | Cable splice closure with both ends mechanically sealed |
| CN104765112A (en) * | 2014-11-17 | 2015-07-08 | 宁波余大通信技术有限公司 | Double-sealing optical cable joint box |
| WO2015120901A1 (en) * | 2014-02-14 | 2015-08-20 | Prysmian S.P.A. | A port sealing device and assembly for an optical cable termination box |
| CN206002739U (en) * | 2016-08-31 | 2017-03-08 | 南通鸿威特种金属制造有限公司 | Ocean cable splice closure |
| CN206804944U (en) * | 2017-05-02 | 2017-12-26 | 常州太平通讯科技有限公司 | A kind of port sealing device for cable splice closure |
-
2017
- 2017-05-02 CN CN201710301757.8A patent/CN106918888B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271182A (en) * | 2007-03-22 | 2008-09-24 | 茹志康 | Joint box sealing device adopting screw cap rotating impacted sealing ring automatic enclasping optical fibre cable |
| WO2015120901A1 (en) * | 2014-02-14 | 2015-08-20 | Prysmian S.P.A. | A port sealing device and assembly for an optical cable termination box |
| CN104238056A (en) * | 2014-09-24 | 2014-12-24 | 昆山市大唐通讯设备有限公司 | Cable splice closure with both ends mechanically sealed |
| CN104765112A (en) * | 2014-11-17 | 2015-07-08 | 宁波余大通信技术有限公司 | Double-sealing optical cable joint box |
| CN206002739U (en) * | 2016-08-31 | 2017-03-08 | 南通鸿威特种金属制造有限公司 | Ocean cable splice closure |
| CN206804944U (en) * | 2017-05-02 | 2017-12-26 | 常州太平通讯科技有限公司 | A kind of port sealing device for cable splice closure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990158A (en) * | 2017-11-27 | 2018-05-04 | 安徽文尧智能光电科技有限公司 | A kind of luminescence unit of LED line light source |
| CN113555271A (en) * | 2021-05-21 | 2021-10-26 | 闫琪明 | Sealing waterproof device for photomultiplier |
| CN113555271B (en) * | 2021-05-21 | 2024-04-19 | 闫琪明 | Sealing waterproof device for photomultiplier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106918888B (en) | 2023-05-16 |
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