CN110082872B - Buried pre-connection optical cable joint box and protective housing thereof - Google Patents
Buried pre-connection optical cable joint box and protective housing thereof Download PDFInfo
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- CN110082872B CN110082872B CN201910314934.5A CN201910314934A CN110082872B CN 110082872 B CN110082872 B CN 110082872B CN 201910314934 A CN201910314934 A CN 201910314934A CN 110082872 B CN110082872 B CN 110082872B
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- Prior art keywords
- optical cable
- joint box
- cable joint
- sliding
- barrel
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- 230000003287 optical effect Effects 0.000 title claims abstract description 59
- 230000001681 protective effect Effects 0.000 title claims abstract description 30
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 9
- 238000007664 blowing Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920007019 PC/ABS Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
- G02B6/501—Underground or underwater installation; Installation through tubing, conduits or ducts underground installation of connection boxes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Cable Accessories (AREA)
Abstract
The invention discloses a buried pre-connection optical cable joint box, which comprises a protective shell and an optical cable joint box arranged in the protective shell, wherein the optical cable joint box is used for butting a trunk optical cable with a distribution optical cable, the optical cable joint box after butting the optical cable is fixed on a fixing device, the protective shell comprises a barrel-shaped shell, two sliding grooves which are oppositely arranged from top to bottom are arranged on the inner wall of the shell, and the bottoms of the sliding grooves are provided with limiting stops; the fixed bolster, including the bottom plate, optical cable joint box detachable installs on the bottom plate, the bottom plate both ends are slip tip, and this slip tip and the spout sliding fit that shells inner wall set up relatively to stop mutually fixedly with the spacing of spout bottom. The protective shell provided by the invention has a complete machine protection function, so that the optical cable joint box is not influenced by external pressure intensity in the buried use process, the smooth passing of rainwater is effectively ensured, the rainwater cannot be accumulated in the cavity of the protective shell, the daily repeated opening and maintenance are convenient, and the service life of the optical cable joint box is prolonged.
Description
Technical Field
The invention relates to the technical field of optical communication equipment, in particular to a buried pre-connection optical cable joint box and a protective shell thereof.
Background
The optical cable joint box is one of very important equipment which is used in the engineering construction of optical cable lines and is used for connecting two or more optical cables together and has a connection part for protecting the components, and the quality of the optical cable joint box directly influences the quality of the optical cable lines and the service life of the optical cable lines.
At present, various difficulties are encountered when the small-capacity optical cable joint box (2 cores and below) is installed and laid: owners do not allow products to be laid on the inner and outer walls of a building, and the construction cost is extremely high because of inconvenience in operation caused by frequent opening and maintenance of the products in underground or pipeline installation. Therefore, the buried pre-connection optical cable joint box suitable for the air-blowing micro-cable laying mode needs to be developed, various performance tests such as waterproof and pressure bearing can be met, maintenance is convenient, and construction cost is reduced.
Disclosure of Invention
In order to solve the technical problems, the invention provides a buried pre-connection optical cable joint box and a protective shell thereof.
The invention adopts the following technical scheme:
the buried optical cable joint box protection shell comprises a barrel-shaped shell, wherein two sliding grooves which are oppositely arranged from top to bottom are formed in the inner wall of the shell, and limiting stops are arranged at the bottoms of the sliding grooves;
The fixed bolster, including the bottom plate, optical cable joint box detachable installs on the bottom plate, the bottom plate both ends are slip tip, and this slip tip and the spout sliding fit that shells inner wall set up relatively to stop mutually fixedly with the spacing of spout bottom.
Preferably, the sliding grooves are oppositely arranged from top to bottom, the upper end sliding groove is large in distance, the lower end sliding groove is small in distance, and the sliding end is in clearance fit with the upper end sliding groove and is in transition fit with the lower end sliding groove.
Preferably, the fixed support bottom plate is provided with an inclined vertical plate, the vertical plate is provided with a holding clamp, and the optical cable joint box is obliquely and detachably arranged on the holding clamp.
Preferably, the bottom plate of the fixed support is also provided with an elastic sliding arm, the elastic sliding arm is vertically arranged at two ends of the bottom plate, and the elastic sliding arm is positioned in the sliding groove.
Preferably, a positioning block is arranged on one surface of the elastic sliding arm facing the sliding groove, and a groove for accommodating the positioning block is arranged at the bottom of the sliding groove and close to the limiting block.
Preferably, the upper end of the elastic sliding arm is also connected with an inwards bent handheld clamp, and the handheld clamp is provided with concave-convex patterns.
Preferably, the buried optical cable joint box protective housing further comprises an upper cover, an optical cable inlet and an optical cable outlet are formed in the bottom of the barrel-shaped housing, and the top of the barrel-shaped housing is detachably and hermetically connected with the upper cover.
Preferably, the outer wall of the barrel-shaped shell is provided with a plurality of reinforcing ribs which are longitudinally and transversely staggered.
A buried pre-connectorized cable joint box comprising a protective housing, a cable joint box built into the protective housing for interfacing a trunk cable with a distribution cable, the cable joint box after interfacing the cable being secured to a mounting bracket, the protective housing being as claimed in any of claims 1 to 8.
Compared with the prior art, the protective shell has the function of protecting the whole machine, so that the optical cable joint box is not influenced by external pressure intensity in the buried use process, and the smooth passing of rainwater is effectively ensured through the fully-sealed protective shell, and the rainwater cannot be accumulated in the cavity of the protective shell; the upper cover of the barrel-shaped shell is of a portable opening structure, so that the maintenance of the barrel-shaped shell is convenient to repeatedly open in daily life, and the service life of the optical cable connector box is prolonged; the optical cable joint box can be quickly fixed at a certain position in the protective shell through the fixing device, and the optical cable joint box is convenient to take out during maintenance.
Drawings
Fig. 1 is an exploded view of the buried pre-connectorized cable tray of the present invention.
Fig. 2 is a schematic view of another angle structure of the barrel housing of the present invention.
Fig. 3 is a schematic view of the structure of the buried pre-connectorized cable joint box of the present invention.
Fig. 4 is a schematic structural view of the fixing bracket mated with the cable junction box.
In the drawing the view of the figure,
1: Barrel-shaped shell, 1-1: chute, 1-2: limit blocking, 1-3: cable hole, 1-4: cable outlet, 1-5: small holes, 1-6: positioning holes, 1-7: wire rubber plug, 1-8: a groove;
2: fixed bolster, 2-1: bottom plate, 2-2: sliding end, 2-3: tilting risers, 2-4: elastic sliding arm, 2-5: hand-held clip, 2-6: positioning blocks, 2-8: holding clamp, 2-9: fixed station, 2-10: pass through the slot;
3: an upper cover; 4: an optical cable splice closure.
Detailed Description
In order to facilitate understanding of the technical scheme of the present invention, the following detailed description is made with reference to the accompanying drawings and specific embodiments.
A buried optical cable joint box protective shell comprises a barrel-shaped shell 1, an upper cover 3 and a fixing support 2 for fixing the optical cable joint box.
The barrel-shaped shell 1 is of a barrel-shaped structure as a whole, the bottom of the barrel-shaped shell is provided with cable inlet and outlet ports 1-3 and 1-4, and the bottom surface of the barrel-shaped shell is provided with a drain hole 1-5 for draining water. The top of the barrel-shaped shell 1 is in sealing connection with the upper cover 2 through threads and gel, and the barrel-shaped shell is convenient to detach during maintenance. Two sliding grooves 1-1 which are oppositely arranged from top to bottom are arranged on the inner wall of the barrel-shaped shell 1, the space between the sliding grooves at the upper end of the sliding groove is large, the space between the sliding grooves at the lower end of the sliding groove is small, and a limit stop 1-2 is arranged near the bottom; the outer wall of the barrel-shaped shell is provided with a plurality of reinforcing ribs which are longitudinally and transversely staggered. The upper edge of the barrel-shaped shell 1 is also provided with a positioning hole 1-6 and a wire passing rubber plug 1-7, the positioning hole 1-6 is used for positioning an upper cover, and the wire passing rubber plug 1-7 is a wire passing hole of a household optical cable.
The fixed bracket 2 comprises a bottom plate 2-1, sliding end parts 2-2 at two ends of the bottom plate, inclined vertical plates 2-3 arranged on the bottom plate, and elastic sliding arms 2-4 vertically arranged on the sliding end parts 2-2 of the bottom plate. The sliding end part 2-2 is in sliding fit with a sliding groove which is arranged opposite to the inner wall of the shell and is fixed with the limit stop 1-2 at the bottom of the sliding groove, and the sliding end part is in clearance fit with the upper sliding groove and is in transition fit with the lower sliding groove. The elastic sliding arm 2-4 and the bottom plate form an L-shaped whole and are matched with the sliding groove 1-1, in addition, a positioning block 2-6 is arranged on one surface of the elastic sliding arm 2-4 facing the sliding groove, and a groove 1-8 which is correspondingly used for accommodating the positioning block 2-6 is arranged at the bottom of the sliding groove and is close to the limiting blocking position; the upper end of the elastic sliding arm is also connected with an inwards bent handheld clamp 2-5, and the handheld clamp is provided with concave-convex patterns which are convenient to grasp. The vertical plate 2-3 is provided with a holding clamp 2-8, the bottom plate is provided with an inclined fixing table 2-9, the fixing table is provided with a penetrating groove 2-10, and the optical cable joint box is obliquely and detachably arranged on the holding clamp and the fixing table 2-9.
The fixing bracket is fixed in the barrel-shaped shell by sliding the elastic sliding arm into the sliding groove from the upper end of the sliding groove and sliding to the limit stop at the bottom along the sliding groove, so that the optical cable joint box is also fixed in the barrel-shaped shell.
Further, the invention also provides a buried pre-connection optical cable joint box, which comprises a protective shell and an optical cable joint box 4 arranged in the protective shell, wherein the optical cable joint box 4 is used for butting a trunk optical cable with a distribution optical cable, the optical cable joint box 4 after butting the optical cable is fixed on the fixed support 2, and the protective shell is as described above. The elastic sliding arm is buckled into the sliding groove and slides to the limit stop at the bottom along the sliding groove, and the fixing support is fixed in the barrel-shaped shell, so that the optical cable joint box is also fixed in the barrel-shaped shell, and the buried pre-connection optical cable joint box is installed in an air-blowing micro-cable laying mode.
Preferably, the capacity requirement of the optical cable joint box is 1 core, the cable inlet hole 1PCS (supporting a D7mm air blowing pipe), the cable outlet hole 1PCS (installing a pre-connection adapter) are used as the buried pre-connection optical cable joint box for an air blowing micro-cable laying mode, and the laying mode is the most advanced optical cable laying technology in the world today, and has the advantages of reducing engineering investment, fully utilizing the existing pipeline resources, being low in cost, easy to lay and the like.
Preferably, the protective shell is made of PP+glass fiber materials (UV resistant, mould resistant and chemical corrosion resistant), and the optical cable joint box and the fixing device are PC/ABS; the whole buried pre-connection optical cable joint box adopts gel sealing, and the protection grade of the whole machine is IPX8; the metal component is made of stainless steel 304, so that the neutral salt fog 10d (240H) of the whole machine is ensured.
The buried pre-connection optical cable joint box is subjected to the following performance test, and the test result shows that the product has good impact resistance, anti-falling performance, pressure-bearing function and waterproof effect, and meets the RoHS and REACH regulation requirements.
A. The impact performance reaches temperature balance at (-15+/-2) DEGC, (23+/-2) DEGC and (45+/-2) DEGC respectively, and then a test sample is installed; 1. impacting the joint box at the height of 0.5m by using a steel ball of 1 kg; 2. the impact points are respectively positioned at the center positions of the connector boxes which rotate around the longitudinal axes of the connector boxes by 0 degree, 90 degrees, 180 degrees and 270 degrees; 3. each point is impacted once. The product is free from damage after the test.
B. After the free fall reaches temperature balance at (-15+/-2) DEGC, (23+/-2) DEGC and (45+/-2) DEGC, respectively, a test sample 1 and a falling height are installed: 75cm; 2. drop times: 1 time; 3. the dropping method comprises the following steps: and installing the optical cable with the length of 2 meters, clamping the end part of the optical cable, and releasing the sample to drop the test, so that the product is not damaged.
C. after the static pressure bearing reaches temperature balance at (-15+/-2) DEGC, (23+/-2) DEGC and (45+/-2) DEGC, respectively, mounting a test sample 1 and applying 1000N force on the 25cm2 area of the shell; 2. the force application points are respectively positioned on the top surface of the shell and the side surface of the shell at an angle of 0 degree, 90 degrees, 180 degrees and 270 degrees relative to the axis rotation; 3. the product was not damaged after each 10 minute duration of the test.
D. waterproof test IPx81, temperature: 15-35 ℃ 2, installing the product in a cable way for 3 days without air pressure, wherein the soaking depth is 1m and the duration is 3 days; the appearance is not damaged after the test, and the product does not enter water.
The foregoing is merely a preferred embodiment of the present invention, and the scope of the invention is defined by the claims, and those skilled in the art should also consider the scope of the present invention without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a buried optical cable joint box protective housing which characterized in that: the protective shell comprises a barrel-shaped shell (1), two sliding grooves (1-1) which are oppositely arranged from top to bottom are formed in the inner wall of the shell, and a limiting block (1-2) is arranged at the bottom of each sliding groove;
The fixed bracket (2) comprises a bottom plate (2-1), the optical cable joint box (4) is detachably arranged on the bottom plate (2-1), two ends of the bottom plate are sliding end parts (2-2), and the sliding end parts are in sliding fit with sliding grooves (1-1) which are oppositely arranged on the inner wall of the shell and are fixed with limit stops (1-2) at the bottoms of the sliding grooves;
the fixed support is characterized in that an elastic sliding arm (2-4) is further arranged on the bottom plate of the fixed support, the elastic sliding arm is vertically arranged at two ends of the bottom plate, the bottom plate (2-1) and the elastic sliding arm (2-4) form an L-shaped whole to be matched with the sliding groove (1-1), and the elastic sliding arm is located in the sliding groove (1-1).
2. A protective casing according to claim 1, characterized in that the upper end runner is provided with a large distance and the lower end runner is provided with a small distance from the upper runner (1-1) to the lower runner, and the sliding end (2-2) is in clearance fit with the upper runner and in transition fit with the lower runner.
3. A protective casing according to claim 1, characterized in that the fixed support base plate is provided with an inclined riser (2-3) provided with a holding clamp (2-8) on which the cable splice closure is inclined and detachably mounted.
4. The protective shell according to claim 1, wherein a positioning block (2-6) is arranged on one surface of the elastic sliding arm facing the sliding groove, and a groove (1-8) for accommodating the positioning block is arranged at the bottom of the sliding groove close to the limit stop.
5. A protective casing according to claim 1, wherein the upper end of the resilient wiper arm is further connected to an inwardly curved hand grip (2-5) provided with embossments.
6. The protective case of claim 1, further comprising an upper cover, wherein the bottom of the barrel-shaped housing is provided with an optical cable inlet and outlet, and wherein the top of the barrel-shaped housing is detachably and sealingly connected to the upper cover.
7. The protective case of claim 1, wherein: the outer wall of the barrel-shaped shell is provided with a plurality of reinforcing ribs which are longitudinally and transversely staggered.
8. The utility model provides a buried pre-connectorized fiber cable joint box which characterized in that: comprising a barrel-shaped housing (1), a cable splice closure (4) built into the barrel-shaped housing (1), the cable splice closure (4) for interfacing a trunk cable with a distribution cable, the cable splice closure after interfacing the cable being secured to a securing bracket (2), the barrel-shaped housing (1) as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910314934.5A CN110082872B (en) | 2019-04-18 | 2019-04-18 | Buried pre-connection optical cable joint box and protective housing thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910314934.5A CN110082872B (en) | 2019-04-18 | 2019-04-18 | Buried pre-connection optical cable joint box and protective housing thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110082872A CN110082872A (en) | 2019-08-02 |
| CN110082872B true CN110082872B (en) | 2024-08-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910314934.5A Active CN110082872B (en) | 2019-04-18 | 2019-04-18 | Buried pre-connection optical cable joint box and protective housing thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110082872B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210181271U (en) * | 2019-04-18 | 2020-03-24 | 浙江超前通信科技股份有限公司 | Protective housing and buried type pre-connection optical cable joint box |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2517206C1 (en) * | 2010-03-03 | 2014-05-27 | ЧИ Юй-фэнь | Body for connection and layout of communication cables with connecting part, hollow elongated cylindrical elements and attachable part |
| CN202472087U (en) * | 2012-03-23 | 2012-10-03 | 姚冬彬 | Optical cable joint protection box |
| CN104142547B (en) * | 2014-05-09 | 2017-01-11 | 杭州华宏通信设备有限公司 | Embedded optical cable splice box prevented from being submersed by water |
| CN206411305U (en) * | 2017-01-25 | 2017-08-15 | 浙江超前通信设备有限公司 | Fiber cable joint case base |
| CN106772875A (en) * | 2017-03-13 | 2017-05-31 | 方秀琴 | A kind of buried waterproof fiber-optic cabinet |
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2019
- 2019-04-18 CN CN201910314934.5A patent/CN110082872B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210181271U (en) * | 2019-04-18 | 2020-03-24 | 浙江超前通信科技股份有限公司 | Protective housing and buried type pre-connection optical cable joint box |
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| Publication number | Publication date |
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| CN110082872A (en) | 2019-08-02 |
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