CN202309010U - Fireproof protection box for protecting intermediate joint of cable - Google Patents
Fireproof protection box for protecting intermediate joint of cable Download PDFInfo
- Publication number
- CN202309010U CN202309010U CN2011203117288U CN201120311728U CN202309010U CN 202309010 U CN202309010 U CN 202309010U CN 2011203117288 U CN2011203117288 U CN 2011203117288U CN 201120311728 U CN201120311728 U CN 201120311728U CN 202309010 U CN202309010 U CN 202309010U
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- cable
- fire
- protection box
- flameproof protection
- housing
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Abstract
The utility model relates to the technical field of a cable accessory used in the electric power and communication cable engineering, in particular to a fireproof protection box for protecting an intermediate joint of a cable, which comprises a shell, flexible package material and sealing material, wherein the shell is formed by a fireproof board and is constructed into a detachable opening and closing closed structure which is provided with an inner cavity and two cable access holes respectively arranged at the two ends of the inner cavity; the flexible package material is positioned at the two ends of the inner cavity of the shell; the sealing material is coated at a gap of the shell and a joint between the shell and the cable close to the cable access holes; the intermediate joint of the cable is arranged in the middle part of the inner cavity; and at least part of the cable arranged in the shell is packaged by the flexible package material. According to the fireproof protection box for protecting the intermediate joint of the cable, the layer of flexible package material which can be used for effectively preventing flame from being leaked outside when the intermediate joint of the cable explodes or is on fire is added into the shell, so that the aim of effectively controlling propagation or spread of the fire can be achieved when the intermediate joint of the cable explodes or is on fire.
Description
Technical field
The utility model relates to the electric cable accessories technical field of using in electric power and the telecommunication cable engineering, particularly a kind of flameproof protection box that is used to protect cable intermediate joint.
Background technology
In electric power and telecommunication cable engineering, the main effect of cable intermediate joint protection box is to prevent that the material that the cable intermediate joint blast produces from leaking.At present, the cable intermediate joint protection box kind that industry is often used is numerous, and for example, two semicolumns that formed by cast iron die casting assemble and two cable intermediate joint protection boxes that semicolumn is fixed through the bolt at its edge; And for example, two semicolumns being processed by high strength glass fiber reinforced plastic assemble and two cable intermediate joint protection boxes that semicolumn is fixed through the bolt at its edge; For another example, two semicolumns and two cable intermediate joint protection boxes that semicolumn is fixed through the bolt at its edge of processing by ABS plastic; Or the like.
Particularly, for example, Chinese patent CN200820058972.6 discloses the structure of a kind of cable intermediate joint protection box: have up and down that two parts half rounds cylinder constitutes, through bolt, and fill explosion-proof clay in the centre.
Again for example, Chinese patent CN201010273553.6 discloses a kind of structure of cable intermediate joint protection box: two parts ABS semicylinder formation is up and down arranged, and through bolt, and at middle filling epoxy resin.
Yet; The existing cable intermediate joint protection box product that comprises above-mentioned patent; The non-fire proofing material of most employings makes up and forms; One of weak point of this existing cable intermediate joint protection box product is when cable mid head is on fire fragile, can't effectively control flame transmission or spreads, thereby can not effectively realize purpose of safety.
Therefore, for the effective and safe purpose, industry is needed a kind of cable intermediate joint protection box that can when the cable intermediate joint blast is perhaps on fire, effectively control flame transmission or spread badly.
The utility model content
The technical problem of mentioning in view of the aforementioned technical background, at least one purpose of the utility model are to provide a kind of flameproof protection box that is used to protect cable intermediate joint that can when the cable intermediate joint blast be perhaps on fire, effectively control flame transmission or spread.
At least one technical scheme of the utility model is achieved in that
A kind of flameproof protection box that is used to protect cable intermediate joint comprises:
Housing, this housing is formed by fire-proof board, and the cable accessing port at the both ends that are configured to have inner chamber and be formed on inner chamber removably open entire enclosed construction;
Flexible lapping, this flexibility lapping is positioned at the two ends of the inner chamber of housing; With
Encapsulant, sealing material are coated on the place, slit of housing and the seam crossing of near housing of cable accessing port and cable;
The transition joint of cable place the centre position of inner chamber and the cable that is positioned at housing at least part by flexible lapping parcel.
According to the utility model, fire-proof board can be selected from a kind of in fire protection flame retarding sheet material with single structure and the fire protection flame retarding sheet material with composite construction.Particularly, have a kind of that the fire protection flame retarding sheet material of single structure can be in inorganic homogeneous fire-proof board and the organic homogeneous fire-proof board.Inorganic homogeneous fire-proof board for example can comprise a kind of in calcium silicate board and the steel plate, and organic homogeneous fire-proof board for example can comprise flame retardant polyurethane sheet material.Preferably, the thickness of fire protection flame retarding sheet material that has single structure is greater than 1 millimeter.
According to the utility model, the fire protection flame retarding sheet material with composite construction can include but not limited to top surface, intermediate layer, network structure and lower surface material.Preferably, the thickness of housing that has composite construction is greater than 3 millimeters.
Preferably, housing is a whole sandwich type element.
Particularly, top surface can be selected from a kind of in metallic plate, inorganic fiberboard, ceramic beaverboard and the carbon fiber board.
Particularly, the intermediate layer can be by macromolecular material, and swelling agent and fire retardant are composited.Wherein, macromolecular material can be selected from one or more in neoprene, butadiene-styrene rubber, polyurethane, epoxy resin, the ethylene propylene diene rubber; Swelling agent can be selected from one or more in polyphosphoric acid ammonium salt, aluminium hydroxide, the magnesium hydroxide; Fire retardant can be selected from one or more in expanded graphite, silicic acid mineral salt, sodium metasilicate, the perlite.
Particularly, network structure can be selected from hexangle type wire netting, embroider wire netting, twist a kind of in the flower wire netting.
Particularly, the lower surface material can be selected from metal forming, fire-retardant film material, not fire a kind of in the thin-film material.
According to the utility model, flexible lapping can be selected from one or more in nonwoven ceramic fiber blanket, mineral fibres blanket, the flame resistant glass tapetum fibrosum.
According to the utility model, encapsulant includes but not limited to the waterproof fireproofing fluid sealant.
Particularly, the waterproof fireproofing fluid sealant as encapsulant can be composited by macromolecular material and fire retardant.Particularly, macromolecular material can be selected from one or more in silicone, polyacrylic acid, polyurethane, epoxy resin, the ethylene propylene diene rubber.Fire retardant can be selected from one or more in Firebrake ZB, aluminium hydroxide, the magnesium hydroxide.
What deserves to be mentioned is, the flameproof protection box that the utility model provides, the midway of housing inner chamber is the placement of flexible lapping further, and like this, the part of the entering housing of the transition joint of cable and cable is wrapped up by flexible lapping.
The utility model has following technique effect at least:
The flameproof protection box that is used to protect cable intermediate joint that the utility model provides; In housing, set up the flexible lapping that one deck can effectively stop flame to leak in cable intermediate joint blast or when on fire, thereby be implemented in the cable intermediate joint blast or effectively control flame transmission or the purpose that spreads when on fire.Simultaneously, the flameproof protection box that is used to protect cable intermediate joint that the utility model provides adopts the waterproof fireproofing fluid sealant to seal at the cable interface place at fire proofing material two ends, thereby effectively realizes anti-fire action and waterproof sealing effect.Therefore; The flameproof protection box that is used to protect cable intermediate joint that the utility model provides; Can replace existing cable intermediate joint protection box; Be applied in electric power and the telecommunication cable engineering, effectively the control flame transmission perhaps spreads when the cable intermediate joint blast is perhaps on fire, thereby plays safety effect effectively.In addition, the flameproof protection box that is used to protect cable intermediate joint that the utility model provides is specially adapted to such as the flameproof protection under the various environment such as cable intermediate joint of cable trough, cable tunnel and outdoor cable.
Description of drawings
In order to let the above-mentioned of the utility model and other purpose, characteristic and the advantage can be more obviously understandable, the utility model be described further below in conjunction with accompanying drawing and embodiment.
Fig. 1 is the structural representation that is used to protect the flameproof protection box of cable intermediate joint for a kind of in the specific embodiment of the utility model.
Among the figure: the 1-housing; The 1a-inner chamber; The 1b-cable accessing port; The flexible lapping of 2-; 3-waterproof fireproofing fluid sealant; The 4-cable.
Embodiment
Describe the embodiment of the utility model below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish label is represented same or analogous element.The embodiment that is described with reference to the drawings below is exemplary, is intended to explain the utility model, and can not be interpreted as a kind of restriction to the utility model.
The utility model provides a kind of flameproof protection box that is used to protect cable intermediate joint.Referring to Fig. 1; A kind of flameproof protection box that is used to protect the transition joint of cable 4; Comprise: housing 1, this housing 1 form and be configured to have inner chamber 1a by fire-proof board and be formed on inner chamber 1a both ends cable accessing port 1b removably open entire enclosed construction; Flexible lapping 2, this flexibility lapping 2 is positioned at the two ends of the inner chamber 1a of housing 1; With, encapsulant 3, sealing material 3 are coated on the place, slit of housing 1 and the seam crossing of near housing 1 of cable accessing port 1b and cable 4; The transition joint of cable 4 place the centre position of inner chamber 1a and the cable 4 that is positioned at housing 1 at least part by flexible lapping 2 parcels.Like this; The flameproof protection box that is used to protect cable intermediate joint that the utility model provides; In housing, set up the flexible lapping that one deck can effectively stop flame to leak when the cable intermediate joint blast is perhaps on fire; Be implemented in cable intermediate joint blast or effectively control flame transmission or the purpose that spreads when on fire, thereby play safety effect effectively.
Particularly, among the embodiment as shown in Figure 1, housing 1 has that mid portion is the polygon cube of prolongation and two ends are apered to the enclosed construction of cable accessing port.Certainly, in other embodiments, the concrete structure of housing 1 is not limited thereto, and can the intermediate portion be enclosed constructions such as rectangle cube, cylinder etc. for example.Preferably, the housing with enclosed construction 1 that adopts in the utility model is a rigidity.Be easy to protect inner cable intermediate joint like this, more.Preferably, the housing in the utility model is a whole sandwich type element.Particularly; The flameproof protection box that is used to protect cable intermediate joint that the utility model provides; Before use, a side of housing can be opened entire, and in use; Detachable apparatus through for example screw connection etc. with the entire side of opening of housing fixing and locate with the slit of encapsulant seal casinghousing then and cable accessing port near the seam crossing of housing and cable, thereby cable and transition joint thereof are sealed in the flameproof protection box housing.Like this, by two cable intermediate joint protection boxes of being assembled of half independently, the housing in the utility model is easy to install more with respect to existing.
According to the utility model, the fire-proof board that forms housing 1 can be selected from a kind of in fire protection flame retarding sheet material with single structure and the fire protection flame retarding sheet material with composite construction.
According to some embodiment of the utility model, have a kind of that the fire protection flame retarding sheet material of single structure can be in inorganic homogeneous fire-proof board and the organic homogeneous fire-proof board.Particularly, inorganic homogeneous fire-proof board for example can be a kind of in calcium silicate board and the steel plate, and organic homogeneous fire-proof board for example can be a flame retardant polyurethane sheet material.Certainly, the material with fire protection flame retarding sheet material of single structure is not limited thereto, and may be used to make the fire protection flame retarding sheet material with single structure in the utility model as long as can realize any material of fire protection flame retarding.Preferably, the thickness of fire protection flame retarding sheet material that has single structure is greater than 1 millimeter.
According to other embodiment of the utility model, the fire protection flame retarding sheet material with composite construction can comprise top surface, intermediate layer, network structure and lower surface material.Preferably, the thickness of housing that has composite construction is greater than 3 millimeters.
According to the utility model, the main effect of top surface is mechanical support and the inner intermediate layer of protection.Particularly, top surface can be selected from a kind of in metallic plate, inorganic fiberboard, ceramic beaverboard and the carbon fiber board.Certainly, the material of top surface is not limited thereto, can also adopt any can mechanical support and protect other material in intermediate layer.
Particularly, the intermediate layer can be by macromolecular material, and swelling agent and fire retardant are composited.Wherein, macromolecular material can be selected from one or more in neoprene, butadiene-styrene rubber, polyurethane, epoxy resin, the ethylene propylene diene rubber; Swelling agent can be selected from one or more in polyphosphoric acid ammonium salt, aluminium hydroxide, the magnesium hydroxide; Fire retardant can be selected from one or more in expanded graphite, silicic acid mineral salt, sodium metasilicate, the perlite.Certainly, in the utility model, can also be doped with other auxiliary agent in the intermediate layer, carburization zone for example, it has good thermal insulation and intensity after expansion.
According to the utility model, the intermediate layer that is composited by above-mentioned material has good pliability, and when under meeting fire or high-temperature condition, expanding, its expanding volume can reach 4-15 times of original volume.
According to the utility model, cancellated main effect is after expansion, the intermediate layer to be unified into a slice fully and not to come off.Particularly, network structure can be selected from hexangle type wire netting, embroider wire netting, twist a kind of in the flower wire netting.Certainly, cancellated material is not limited thereto, and can also adopt any material that can unite the intermediate layer after the expansion.
According to the utility model, the main effect of lower surface material is to protect the effect in intermediate layer and extra commerce to represent effect.Particularly, the lower surface material can be selected from metal forming, fire-retardant film material, not fire a kind of in the thin-film material.Certainly, the material of lower surface material is not limited thereto, and can also adopt other material with similarity.
According to the utility model, flexible lapping 2 can be selected from one or more in nonwoven ceramic fiber blanket, mineral fibres blanket, the flame resistant glass tapetum fibrosum.According to the utility model, flexible lapping 2 is preferably the layered composite of above-mentioned tapetum fibrosum.According to the utility model, the main effect of flexible lapping 2 is when blasting burning, to play the effect that stops flame to leak.
According to the utility model, encapsulant can but to be not limited to be the waterproof fireproofing fluid sealant.Waterproof fireproofing fluid sealant 3 can be composited by macromolecular material and fire retardant.Particularly, macromolecular material can be selected from one or more in silicone, polyacrylic acid, polyurethane, epoxy resin, the ethylene propylene diene rubber.Fire retardant can be selected from one or more in Firebrake ZB, aluminium hydroxide, the magnesium hydroxide.According to the utility model, waterproof fireproofing fluid sealant 3 has better elastic, and plays the effect of fire prevention and waterproof sealing.In addition, the encapsulant in the utility model can also adopt for example anti-chamotte or silicon rubber.
In addition; The structure of being filled by packing material is adopted in inside with respect to cable intermediate joint protection box of the prior art; A kind of flameproof protection box that is used to protect cable intermediate joint that the utility model provides; Adopt the cavity form in enclosure interior, and do not fill any material, thereby can improve the radiating effect of whole protecting box.In addition; In the embodiment of part by flexible lapping parcel of the entering housing of the transition joint of cable and cable; Though the enclosure interior of flameproof protection box provided by the invention is all filled the distinctive flexible lapping of the present invention; Especially the characteristics such as structure that flexible lapping itself is loose, also other packing material than prior art helps heat radiation more.
Below provide a kind of some specific embodiments that are used to protect the flameproof protection box of cable intermediate joint that provide about the utility model, and according to these specific embodiments explanations with set forth advantage of the present invention and benefit.
Specific embodiment 1:
According to a preferred specific embodiment of the utility model, referring to Fig. 1, a kind of flameproof protection box that is used to protect cable intermediate joint.Particularly, in this specific embodiment, it is the fire protection flame retarding sheet material with composite construction of 7mm that housing 1 adopts thickness, and it is the ceramic fiber blanket of 38mm that flexible lapping 2 adopts thickness, and waterproof fireproofing fluid sealant 3 then adopts silicone type waterproof fireproofing fluid sealant.Through test, result of the test proves: in the cable blast process, the flameproof protection box that is made up of above-mentioned material can play leaking of flame that prevention causes by blast fully.
Specific embodiment 2:
According to another preferred specific embodiment of the utility model, a kind of flameproof protection box that is used to protect cable intermediate joint.Wherein, with reference to specific embodiment 1, this specific embodiment replaces to acrylic type waterproof fireproofing fluid sealant, other material and parameter constant with the silicone type waterproof fireproofing fluid sealant in the specific embodiment 1.Through test, result of the test proves: in the cable blast process, the protection box can play leaking of flame that prevention causes by blast fully.
Specific embodiment 3:
According to another preferred specific embodiment of the utility model, a kind of flameproof protection box that is used to protect cable intermediate joint.Wherein, with reference to specific embodiment 1, this specific embodiment is the flexible lapping of fibre glass chopped stand mat that the flexible lapping 2 of ceramic fiber blanket of 38mm replaces to same thickness with the thickness in the specific embodiment 1, other material and parameter constant.Through test, result of the test proves: in the cable blast process, the protection box can play leaking of flame that prevention causes by blast fully.
Therefore; A kind of flameproof protection box that is used to protect cable intermediate joint that the utility model provides; In housing, set up the flexible lapping that one deck can effectively stop flame to leak in cable intermediate joint blast or when on fire, thereby be implemented in the cable intermediate joint blast or effectively control flame transmission or the purpose that spreads when on fire.Simultaneously, the flameproof protection box that is used to protect cable intermediate joint that the utility model provides preferably adopts the waterproof fireproofing fluid sealant to seal at the cable interface place at fire proofing material two ends, thereby effectively realizes anti-fire action and waterproof sealing effect.Therefore; The flameproof protection box that is used to protect cable intermediate joint that the utility model provides; Can replace existing cable intermediate joint protection box; Be applied in electric power and the telecommunication cable engineering, effectively the control flame transmission perhaps spreads when the cable intermediate joint blast is perhaps on fire, thereby plays safety effect effectively.In addition, the flameproof protection box that is used to protect cable intermediate joint that the utility model provides is specially adapted to such as the flameproof protection under the various environment such as cable intermediate joint of cable trough, cable tunnel and outdoor cable.
The embodiment of above-mentioned the utility model only exemplary explanation the principle and the effect thereof of the utility model; But not be used to limit the utility model; Know and it will be understood by those skilled in the art that; Under the situation of spirit that does not depart from the utility model and scope, any change that the utility model is done and improving all in the scope of the utility model.The rights protection scope of the utility model, should as the application claim defined is as the criterion.
Claims (15)
1. flameproof protection box that is used to protect the transition joint of cable is characterized in that said flameproof protection box comprises:
Housing (1), said housing is formed by fire-proof board, and be configured to have inner chamber (1a) and be formed on the both ends of said inner chamber cable accessing port (1b) removably open entire enclosed construction;
Flexible lapping (2), said flexible lapping is positioned at the two ends of the said inner chamber of said housing; With
Encapsulant (3), said encapsulant are coated near the seam crossing of said housing and said cable slit place and the said cable accessing port of said housing;
The transition joint of said cable place the centre position of said inner chamber and the said cable that is positioned at said housing at least part by said flexible lapping parcel.
2. flameproof protection box as claimed in claim 1, wherein:
Said fire-proof board is selected from a kind of in fire protection flame retarding sheet material with single structure and the fire protection flame retarding sheet material with composite construction.
3. flameproof protection box as claimed in claim 2, wherein:
Said fire protection flame retarding sheet material with single structure is a kind of in inorganic homogeneous fire-proof board and the organic homogeneous fire-proof board.
4. flameproof protection box as claimed in claim 3, wherein:
Said inorganic homogeneous fire-proof board comprises a kind of in calcium silicate board and the steel plate.
5. flameproof protection box as claimed in claim 3, wherein:
Said organic homogeneous fire-proof board comprises flame retardant polyurethane sheet material.
6. flameproof protection box as claimed in claim 3, wherein:
The thickness of said fire protection flame retarding sheet material with single structure is greater than 1 millimeter.
7. flameproof protection box as claimed in claim 2, wherein:
Said fire protection flame retarding sheet material with composite construction comprises top surface, intermediate layer, network structure and lower surface material.
8. flameproof protection box as claimed in claim 7, wherein:
Said top surface is selected from a kind of in metallic plate, inorganic fiberboard, ceramic beaverboard and the carbon fiber board.
9. flameproof protection box as claimed in claim 7, wherein:
Said network structure is selected from hexangle type wire netting, embroider wire netting, twist a kind of in the flower wire netting.
10. flameproof protection box as claimed in claim 7, wherein:
Said lower surface material is selected from metal forming, fire-retardant film material, do not fire a kind of in the thin-film material.
11. flameproof protection box as claimed in claim 7, wherein:
The thickness of said fire-proof board with composite construction is greater than 3 millimeters.
12. flameproof protection box as claimed in claim 2, wherein:
Said housing is a whole sandwich type element.
13. flameproof protection box as claimed in claim 1, wherein:
Said flexible lapping is selected from one or more in nonwoven ceramic fiber blanket, mineral fibres blanket, the flame resistant glass tapetum fibrosum.
14. flameproof protection box as claimed in claim 1, wherein:
Said encapsulant comprises the waterproof fireproofing fluid sealant.
15. flameproof protection box as claimed in claim 1 also comprises:
Be positioned at the flexible lapping in the centre position of said inner chamber, the transition joint of wherein said cable is by said flexible lapping parcel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203117288U CN202309010U (en) | 2011-08-25 | 2011-08-25 | Fireproof protection box for protecting intermediate joint of cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203117288U CN202309010U (en) | 2011-08-25 | 2011-08-25 | Fireproof protection box for protecting intermediate joint of cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202309010U true CN202309010U (en) | 2012-07-04 |
Family
ID=46377824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203117288U Expired - Lifetime CN202309010U (en) | 2011-08-25 | 2011-08-25 | Fireproof protection box for protecting intermediate joint of cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202309010U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099830A (en) * | 2016-08-18 | 2016-11-09 | 上海市政工程设计研究总院（集团）有限公司 | A kind of non-wet environment Fuse Type cable connector fireproof protection box |
| CN112018714A (en) * | 2020-08-27 | 2020-12-01 | 山东鲁阳节能材料股份有限公司 | Cable joint protection box |
-
2011
- 2011-08-25 CN CN2011203117288U patent/CN202309010U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099830A (en) * | 2016-08-18 | 2016-11-09 | 上海市政工程设计研究总院（集团）有限公司 | A kind of non-wet environment Fuse Type cable connector fireproof protection box |
| CN112018714A (en) * | 2020-08-27 | 2020-12-01 | 山东鲁阳节能材料股份有限公司 | Cable joint protection box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |