CN2249849Y - Inorganic fire-resisting wire bounding support - Google Patents
Inorganic fire-resisting wire bounding support Download PDFInfo
- Publication number
- CN2249849Y CN2249849Y CN 95240266 CN95240266U CN2249849Y CN 2249849 Y CN2249849 Y CN 2249849Y CN 95240266 CN95240266 CN 95240266 CN 95240266 U CN95240266 U CN 95240266U CN 2249849 Y CN2249849 Y CN 2249849Y
- Authority
- CN
- China
- Prior art keywords
- cover plate
- fire
- utility
- housing
- model
- 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.)
- Expired - Fee Related
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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The utility model relates to an inorganic fire-resisting wire bounding support which is used for the laying of electric wires and cable wires. In order to effectively solve heat-radiating problem and to realize fire-resisting and fire-delaying purposes, a cover plate of the utility model is designed to a mobile-type cover plate; thus, under the normal condition, the cover plate is favorable to the ventilation and the heat radiation of cables and particularly the ventilation and the heat radiation of electric power cables of large capacity when the cover plate is supported off by a supporting rod. When the external part of the utility model happens a fire phenomenon, the mobile-type cover plate can be automatically tumbled and closed by using an interlocking device; thus, the utility model can be automatically closed.
Description
The utility model is the inorganic non-combustible type wire bounding support of using when supplying wiring, elastic cable paper.
The present steel cable testing bridge that generally uses, its shortcoming is to play fire protection flame retarding, and the isolation layer of elastic cable paper mainly adopts rubber and plastic production again, so when running into thermal source or kindling material, be easy to catch fire, and intensity of a fire development rapidly, is difficult to put out, and repair time is longer, used fire-retardant crane span structure on the Domestic market at present, but heat dispersion is not ideal enough, especially in some jumbo power circuits, even can cause ignition of cable to prolong combustion.
The purpose of this utility model is that a kind of improved inorganic non-combustible type wire bounding support will be provided, and it can solve heat dissipation problem effectively, the purpose of reach fire-retardant, prolonging combustion.
The purpose of this utility model is achieved in that the cover plate with inorganic non-combustible type wire bounding support is designed to movable cover plate.Under normal circumstances, cover plate is strutted by pole, helps cable, particularly the ventilation and heat of large-capacity power cable.When the outside caught fire, by interlock, movable cover plate can fall closure automatically, seals automatically.
The utility model is because only need strut cover plate, so structure is simple especially with pole.Because cover plate is propped up, and has played the effect of ventilation and heat, solved the consumable heating of cable in the large-capacity power circuit, the current-carrying capacity of cable depreciation is reduced, and when fire took place, movable cover plate fell automatically and seals, cable and burning things which may cause a fire disaster are isolated, thereby play fire-retardant, as to prolong combustion purpose.
The concrete structure of model utility is provided by following examples and accompanying drawing.
Fig. 1 is the sectional drawing of inorganic non-combustible wire bounding support.(1) be the outer box of inorganic board of this crane span structure, (2) are its steel inner box, and (3) are end cap, and there is a removable cover (8) top of crane span structure.There is an interlock (5) at the middle part of cover plate top.Fig. 2, Fig. 3 are respectively the sectional drawing and the plan views of interlock.This device comprises a housing (11), and a stage clip (12) is arranged in the middle of the housing, and compression spring sleeve is on axle (13), and there is depression bar (10) top of axle, and depression bar is located by fusible metal pin (14) and screw (9).Four pull bars (7) of outside stretching, extension are arranged at the bottom of housing (11).The outer end of pull bar has rested on the pole (4) of location and leading role.Link by extension spring (6) between housing and the pull bar.Under normal circumstances, cover plate (8) is propped by pole (4).Operating process is such, depression bar (10) is depressed, and with screw (9) and fusible metal pin (14) location, made it not by resilience.The axle (13) that descend to this moment promotes pull bar (7) and outwards stretches, and rests just on the pole (4).When meeting accident, when external temperature reaches about 100 ℃, fusible metal pin (14) is melted immediately, depression bar (10) flicks, at this moment, axle (13) gos up because of the effect of stage clip (12), pull bar (7) is under the effect of extension spring (6), draw in and reset to the center, make it to break away from pole (4), removable cover (8) falls along pole (4) immediately, cover on the box outside crane span structure (1), automatically seal, the temperature in the inner box (2) is remained on below 70 ℃ within a certain period of time, thereby reach the purpose of fire protection flame retarding.
Claims (3)
1, the inorganic non-combustible type wire bounding support that is used for wiring, elastic cable paper, this crane span structure comprises outer box (1), inner box (2), also has an end cap (3), there is a removable cover (8) top that it is characterized in that crane span structure, and there is an interlock (5) at the middle part of cover plate top
2, crane span structure according to claim 1, it is characterized in that interlock (5) comprises a housing (11), a stage clip (12) is arranged in the middle of the housing, compression spring sleeve is on axle (13), there is depression bar (10) top of axle, depression bar is located by fusible metal pin (14) and screw (9), four pull bars (7) of outside stretching, extension are arranged at the bottom of housing (11), the outer end of pull bar has rested on the pole (4) of location and leading role, link by extension spring (6) between housing and the pull bar, under normal circumstances, cover plate (8) is propped by pole (4).
3, crane span structure according to claim 1 is characterized in that outer box (1) makes of inorganic board, and inner box (2) is made by steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95240266 CN2249849Y (en) | 1995-08-07 | 1995-08-07 | Inorganic fire-resisting wire bounding support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95240266 CN2249849Y (en) | 1995-08-07 | 1995-08-07 | Inorganic fire-resisting wire bounding support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2249849Y true CN2249849Y (en) | 1997-03-19 |
Family
ID=33881872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95240266 Expired - Fee Related CN2249849Y (en) | 1995-08-07 | 1995-08-07 | Inorganic fire-resisting wire bounding support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2249849Y (en) |
-
1995
- 1995-08-07 CN CN 95240266 patent/CN2249849Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |