CN209514151U - A kind of continuous extrusion sealing structure of cable splice closure cable mouth - Google Patents
A kind of continuous extrusion sealing structure of cable splice closure cable mouth Download PDFInfo
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- CN209514151U CN209514151U CN201821908215.3U CN201821908215U CN209514151U CN 209514151 U CN209514151 U CN 209514151U CN 201821908215 U CN201821908215 U CN 201821908215U CN 209514151 U CN209514151 U CN 209514151U
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- cable
- continuous extrusion
- box body
- sealing
- splice closure
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Abstract
The utility model discloses a kind of continuous extrusion sealing structures of cable splice closure cable mouth, it is characterized by comprising upper cartridge body, lower box body and sealing elements, have to bury for the optical cable across optical cable on cable splice closure and connects hole, the optical cable, which buries, to be connect hole and is put together by upper cartridge body with lower box body, crushing block and pressure spring are provided on the upper cartridge body, crushing block is fixed on upper cartridge body, pressure spring is set to crushing block between upper cartridge body, to carry out continuous extrusion to crushing block, the sealing element, which is set to the optical cable and buries, to be connect in hole.The optical cable of the utility model cable splice closure, which buries, connects porose area using continuous extrusion sealing structure, both first completes the room temperature sealing of optical cable, then loosens pressure spring, and crushing block carries out continuous extrusion to sealing element under the action of pressure spring, and the sealing performance made is relatively reliable.
Description
Technical field
The utility model relates to a kind of continuous extrusion sealing structures of cable splice closure cable mouth
Background technique
Cable splice closure shields after mainly connecting to the optical cable on fiber optic network with optical cable, between optical cable
Connecting, which has, leads directly to difference two ways, this needs connector box to be designed to that can open up and down two distinguish formula structure.Existing optical cable
Connector box mostly uses unvulcanized rubber to seal greatly, and reuse need to increase unvulcanized rubber again, reuses at high cost, use
It is inconvenient.It is convenient to be reused using the cable splice closure of vulcanized rubber sealing, and conventional hermetic performance can reach national industry mark
Standard, but temperature Cycle does not reach requirement (national standard: Y/DT814-2007).Performance requirement is not achieved mainly has and is following
Some reasons: the optical cable that cable splice closure need to meet different-diameter uses, and the main portions to leak air are buried in optical cable to be connect at hole,
The thermal expansion coefficient of existing vulcanized rubber is bigger, and compression set is bigger, and after low-temperature test, volume can accordingly contract
Small, resilience performance reduces when low temperature, is the major reason that its sealing performance is deteriorated.
Utility model content
The purpose of the utility model is to overcome the above shortcomings in existing sealing technique, and provide a kind of optical cable
The continuous extrusion sealing structure of connector box cable mouth.Continuous extrusion sealing structure be suitable for cable splice closure bury connect bore region into
Row sealing.
The technical scheme in the invention for solving the above technical problem is:
A kind of continuous extrusion sealing structure of cable splice closure cable mouth, it is characterised in that: including upper cartridge body, lower box body and close
Sealing, has to bury for the optical cable across optical cable on cable splice closure and connects hole, and the optical cable, which buries, connects hole by upper cartridge body with lower box body
Be put together, the upper cartridge body and lower box body on be provided with crushing block and pressure spring, several receivings are set on the crushing block
The groove of pressure spring, is fixed on box body, and pressure spring is set to crushing block between box body, to carry out continuous extrusion to crushing block,
The sealing element, which is set to optical cable and buries, to be connect in hole.
Cable splice closure needs internal qi of chong channel ascending adversely 60Kpa, does loop test between -40 degree in+65 degree, and after finishing test
Air pressure decline is no more than 5Kpa, and very high to the material and structural requirement of product, present design can effectively solve fiber cable joint
Box sealing problem has at low cost, the advantage of good seal performance.Product sealing element is usually that the elastic material coefficient of expansion compares
Greatly, it is affected to sealing performance.Crushing block is to carry out continuous extrusion to sealing element with the effect of pressure spring, close when high temperature
Sealing volume expansion, sealing element squeeze crushing block, and pressure spring compression reduces the influence to product casing, when low temperature, sealing element body
Product reduces, pressure spring rebound, squeezes crushing block, carries out continuous extrusion to sealing element, guarantees the sealing performance of product.
Further, preferably, crushing block is equipped with several grooves for accommodating pressure spring, permission bolt is provided on box body
The through-hole passed through for crushing block to be fixed on box body with pressure spring, and carries out precompressed to pressure spring.
Further, preferably, sealing element inner wall is equipped with incremental protrusion.Using this structure, can effectively improve often
Warm sealing performance, when preventing from sealing element from squeezing optical cable sealing, gas is from gas leakage between the split gap of sealing element in box.
Further, preferably, having wavy bulge and groove in sealing element, the seal convexity and groove are along sealing
The setting of part inner wall.The sealing of optical cable within the scope of certain diameter can satisfy using this structure.
Further, preferably, being equipped with the inner cavity for allowing optical cable to pass through in the sealing element.Using this structure, in light
When cable difference operation, end of cable can enter connector box directly through the inner cavity, and sealing performance can more be effectively ensured.
Further, preferably, upper cartridge body and lower box body are equipped with block.Using this structure, the logical of product can be improved
With property, suitable block is selected according to the optical cable of different-diameter, when preventing Hawser mouth from sealing minor diameter optical cable, sealing element is from cable mouth
It squeezes out, is directed at seal failure, guarantees the leakproofness of product.
Further, preferably, pressure spring is with being equipped with gasket between box body.Using this structure, cell material can be reduced
Hardness requirement.
This technology is compared with the prior art, have the following advantages that and effect: the optical cable of the utility model cable splice closure buries
Region is connect using continuous extrusion sealing structure, both upper cartridge body was put together with lower box body, is completed to seal the room temperature of optical cable, be set on box body
There are crushing block and a pressure spring, when high temperature, sealing element volume expansion, sealing element squeezes crushing block, and pressure spring compression is reduced to product casing
Influence, when low temperature, sealing element volume-diminished, pressure spring rebound squeezes crushing block, and crushing block carries out continuous extrusion to sealing element,
The amount of sealing element volume-diminished is made up using the space that pressure spring is sprung back to guarantee the sealing performance of product.
Detailed description of the invention
Fig. 1 is one cable splice closure structural schematic diagram of the utility model case study on implementation
Fig. 2 is one upper cartridge body continuous extrusion sealed structural schematic diagram of the utility model case study on implementation
Fig. 3 is one lower box body continuous extrusion sealed structural schematic diagram of the utility model case study on implementation
Fig. 4 is one sealing element schematic diagram of the utility model case study on implementation
Fig. 5 is one crushing block schematic diagram of the utility model case study on implementation
Fig. 6 is one block schematic diagram of the utility model case study on implementation
Fig. 7 is two cable splice closure structural schematic diagram of the utility model case study on implementation
Fig. 8 is two upper cartridge body continuous extrusion sealed structural schematic diagram of the utility model case study on implementation
Fig. 9 is two lower box body continuous extrusion sealed structural schematic diagram of the utility model case study on implementation
Figure 10 is two sealing element schematic diagram of the utility model case study on implementation
Figure 11 is two crushing block schematic diagram of the utility model case study on implementation
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing and by case, and the case implemented below is
To the explanation of the utility model and the utility model is not limited to following case.
Case study on implementation one
Referring to Fig. 1-Fig. 6, the continuous extrusion sealing structure of the present embodiment cable splice closure cable mouth, including upper cartridge body 1, lower box
Body 2 and sealing element 3, have to bury for the optical cable across optical cable on cable splice closure and connect hole, and the optical cable, which buries, connects hole by upper cartridge body
1 is put together with lower box body 2, and the upper cartridge body 1 is equipped with the groove 11 for accommodating sealing element 3, crushing block 4 and pressure spring 5, is equipped with installation
The boss 13 of pressure spring 5 and gasket 7, equipped with the through-hole 12 installing the groove 14 of cushion block 8 and being passed through equipped with bolt 6.
Gasket 7 is set on lower box body side wall, and material uses metal, is improved box body to the endurance of spring, is reduced box body
Material hardness.
Crushing block 4 is equipped with the groove 41 of two receiving pressure springs 5, and crushing block 4 is fixed on upper cartridge body using nut 6, presses
Spring 5 is set to crushing block 4 with being in compressive state between gasket 7, to carry out continuous extrusion to crushing block 4.
Cushion block 8 is equipped with the boss 81 cooperated with upper cartridge body, is set on upper cartridge body, prevents Hawser mouth from sealing minor diameter light
When cable, sealing element is squeezed out from cable mouth, is directed at seal failure, is guaranteed the leakproofness of product.
Lower box body 2 is equipped with the groove 21 for accommodating sealing element 3, crushing block 4 and pressure spring 5, equipped with installation pressure spring 5 and gasket 7
Boss 23, equipped with the through-hole 22 installing the groove 24 of cushion block 8 and being passed through equipped with bolt 6.
Gasket 7 is set on lower box body side wall, and material uses metal, is improved box body to the endurance of spring, is reduced box body
Material hardness.
Crushing block 4 is equipped with two grooves 41 for accommodating pressure spring 5, and crushing block 4 is fixed on lower box body using nut 6, pressure spring 5
Crushing block 4 is set to being in compressive state between gasket 7, to carry out continuous extrusion to crushing block 4.
3 inner wall of sealing element is equipped with incremental protrusion 31, and the effect of incremental protrusion 31 is to prevent sealing element 3 from squeezing optical cable
When means of press seals, gas is leaked out from sealing element 3 with the spelling commissure of 3 inner wall of sealing element in box, has waveform in the sealing element
Protrusion 32 and groove 33 are arranged along sealing element inner wall, and the effect of wavy bulge 32 and groove 33 is can satisfy certain straight
Optical cable sealing within the scope of diameter.
Cushion block 8 is equipped with the boss 81 cooperated with upper cartridge body, is set on upper cartridge body, prevents Hawser mouth from sealing minor diameter light
When cable, sealing element is squeezed out from cable mouth, is directed at seal failure, is guaranteed the leakproofness of product.
Sealing principle are as follows:
When connector box encapsulates, upper cartridge body 1 is disturbed simultaneously tightly with the conjunction of lower box body 2 first, room temperature is completed and refers under construction temperature at that time
Sealing to optical cable, then bolt 6 is unscrewed, crushing block 4 carries out continuous extrusion to sealing element 3 under the action of pressure spring 5 is sprung back, high
Wen Shi, 3 volume expansion of sealing element, sealing element 3 squeeze crushing block 4, and pressure spring 5 compresses, and reduce the influence to product casing, low temperature
When, 3 volume-diminished of sealing element, pressure spring 5 is sprung back, and crushing block 4 carries out continuous extrusion to sealing element 3, the space sprung back using pressure spring 5
The amount of 3 volume-diminished of sealing element is made up to guarantee the sealing performance of product.
Case study on implementation two
Referring to Fig. 7-Figure 11, the continuous extrusion sealing structure of the present embodiment cable splice closure cable mouth, including upper cartridge body 1, under
Box body 2 and sealing element 3, have to bury for the optical cable across optical cable on cable splice closure and connect hole, and the optical cable, which buries, connects hole by upper box
Body 1 is put together with lower box body 2, and the upper cartridge body 1 is equipped with the groove 11 for accommodating sealing element 3, crushing block 4 and pressure spring 5, is equipped with peace
Fill the boss 13 of pressure spring 5 and gasket 7, and the through-hole 12 passed through equipped with bolt 6.
Gasket 7 is set on lower box body side wall, and material uses metal, is improved box body to the endurance of spring, is reduced box body
Material hardness.
Crushing block 4 is equipped with several grooves 41 for accommodating pressure spring 5, and crushing block 4 is fixed on upper cartridge body using nut 6,
Pressure spring 5 is set to crushing block 4 with being in compressive state between gasket 7, to carry out continuous extrusion to crushing block 4.
Lower box body 2 is equipped with the groove 21 for accommodating sealing element 3, crushing block 4 and pressure spring 5, equipped with installation pressure spring 5 and gasket 7
Boss 23, equipped with the through-hole 22 installing the groove 24 of cushion block 8 and being passed through equipped with bolt 6.
Gasket 7 is set on lower box body side wall, and material uses metal, is improved box body to the endurance of spring, is reduced box body
Material hardness.
Crushing block 4 is equipped with several grooves 41 for accommodating pressure spring 5, and crushing block 4 is fixed on lower box body using nut 6,
Pressure spring 5 is set to crushing block 4 with being in compressive state between gasket 7, to carry out continuous extrusion to crushing block 4.
The inner cavity 31 for allowing optical cable to pass through is equipped in sealing element 3, in optical cable difference operation, end of cable can be directly through
Inner cavity enters connector box, easy to operate, and sealing performance can more be effectively ensured.
Cushion block 8, which is equipped with, allows the inner hole that passes through of optical cable, is set to optical cable and buries and connects hole inner end, prevents Hawser mouth from sealing minor diameter
When optical cable, sealing element is squeezed out from cable mouth, is directed at seal failure, is guaranteed the leakproofness of product.
Sealing principle are as follows:
When connector box encapsulates, optical cable passes through 3 inner cavity of sealing element, and upper cartridge body 1 is disturbed simultaneously tightly with the conjunction of lower box body 2, completes room temperature
Refer to the sealing under construction temperature at that time to optical cable, then bolt 6 is unscrewed, crushing block 4 is under the action of pressure spring 5 is sprung back to sealing
Part 3 carries out continuous extrusion, and when high temperature, 3 volume expansion of sealing element, sealing element 3 squeezes crushing block 4, and pressure spring 5 compresses, and reduces to production
The influence of product shell, when low temperature, 3 volume-diminished of sealing element, pressure spring 5 is sprung back, and crushing block 4 carries out continuous extrusion, benefit to sealing element 3
The amount of 3 volume-diminished of sealing element is made up with the space that pressure spring 5 is sprung back to guarantee the sealing performance of product.
Above-mentioned case confirms that this structure is effective to sealing effect at cable splice closure cable mouth, temperature cycles through many experiments
Performance reaches cable splice closure professional standard (YD/814.1-2007).
Above content is only illustrate to examples for clearly illustrating the present invention described in this specification.The utility model
Person of ordinary skill in the field can make various modifications or additions to the described embodiments or using class
As mode substitute, content without departing from the utility model specification or surmount model defined in the claims
It encloses, all should belong to the protection range of the utility model.
Claims (8)
1. a kind of continuous extrusion sealing structure of cable splice closure cable mouth, it is characterised in that: including upper cartridge body, lower box body and sealing
Part, has to bury for the optical cable across optical cable on cable splice closure and connects hole, and the optical cable, which buries, to be connect hole and spelled by upper cartridge body with lower box body
It closes, crushing block and pressure spring is provided on the upper cartridge body and lower box body, crushing block is fixed on box body, and pressure spring is set to
Crushing block is between box body, and to carry out continuous extrusion to crushing block, the sealing element, which is set to optical cable and buries, to be connect in hole.
2. the continuous extrusion sealing structure of cable splice closure cable mouth according to claim 1, it is characterised in that: described to squeeze
Several grooves for accommodating pressure springs are set on briquetting, the through-hole for allowing bolt to pass through is provided on box body, for crushing block with
Pressure spring is fixed on box body, and carries out precompressed to pressure spring.
3. the continuous extrusion sealing structure of cable splice closure cable mouth according to claim 1, it is characterised in that: the sealing
Part distinguishes formula structure for two, is equipped with incremental protrusion.
4. the continuous extrusion sealing structure of cable splice closure cable mouth according to claim 3, it is characterised in that: the sealing
There is wavy bulge and groove, wavy bulge and groove are arranged along sealing element inner wall in part.
5. the continuous extrusion sealing structure of cable splice closure cable mouth according to claim 1, it is characterised in that: the sealing
The inner cavity for allowing optical cable to pass through is equipped in part.
6. the continuous extrusion sealing structure of cable splice closure cable mouth according to claim 1, it is characterised in that: on described
Block is equipped between box body and lower box body.
7. the continuous extrusion sealing structure of cable splice closure cable mouth according to claim 6, it is characterised in that: the gear
Block distinguishes formula structure for two.
8. the continuous extrusion sealing structure of cable splice closure cable mouth according to claim 1, it is characterised in that: the pressure spring
With being equipped with gasket between box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821908215.3U CN209514151U (en) | 2018-11-12 | 2018-11-12 | A kind of continuous extrusion sealing structure of cable splice closure cable mouth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821908215.3U CN209514151U (en) | 2018-11-12 | 2018-11-12 | A kind of continuous extrusion sealing structure of cable splice closure cable mouth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209514151U true CN209514151U (en) | 2019-10-18 |
Family
ID=68189830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821908215.3U Expired - Fee Related CN209514151U (en) | 2018-11-12 | 2018-11-12 | A kind of continuous extrusion sealing structure of cable splice closure cable mouth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209514151U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109445045A (en) * | 2018-11-12 | 2019-03-08 | 胡肖平 | A kind of continuous extrusion sealing structure of cable splice closure cable mouth |
-
2018
- 2018-11-12 CN CN201821908215.3U patent/CN209514151U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109445045A (en) * | 2018-11-12 | 2019-03-08 | 胡肖平 | A kind of continuous extrusion sealing structure of cable splice closure cable mouth |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191018 Termination date: 20211112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |