CN205116436U - Block structure at big space floor fireproof rolling shutter door upper portion entrance to a cave - Google Patents
Block structure at big space floor fireproof rolling shutter door upper portion entrance to a cave Download PDFInfo
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- CN205116436U CN205116436U CN201520792949.XU CN201520792949U CN205116436U CN 205116436 U CN205116436 U CN 205116436U CN 201520792949 U CN201520792949 U CN 201520792949U CN 205116436 U CN205116436 U CN 205116436U
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- fire prevention
- rolling shutter
- fire
- shutter door
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Abstract
The utility model discloses a block structure at big space floor fireproof rolling shutter door upper portion entrance to a cave, set up the main joist, equidistantly lay around upper and lower two main joists the secondary joist on the side and cover the fire prevention rock wool board on the secondary joist of side around in including crab -bolt, two upper and lower horizontal levels, it has fire prevention rock wool layer to fill between the fire prevention rock wool board of trailing flank in the front, two piece upper and lower main joists pass through the crab -bolt and install respectively on the downside of upper portion concrete beam board and lower part fireproof curtain box on the side. This block structure can carry out effective shutoff to the big space floor fireproof rolling shutter door upper portion entrance to a cave, and possesses sealed fire behavior, has better application prospect.
Description
Technical field
The utility model relates to a kind of fire prevention constructing structure, in particular for the plugging structure at hole, large space floor fire resistance rolling shutter door top.
Background technology
Fire resistance rolling shutter door plays an important role as the boundary of fire-fighting fire-proof subregion, and most fire resistance rolling shutter door be in place by design drawing after big city lighten a same gate-width of width on top, highly indefinite hole, by code requirement, the material that the shutoff at hole, top should adopt fire endurance to be not less than fire curtain carries out shutoff.At present, the shutoff at hole, fire resistance rolling shutter door top generally adopts two schemes, and a kind of is the mode adopting brick envelope, but needs build a whole piece concrete lintel or install a steel lintel, and lintel is laid bricks.Another scheme directly adopts fireproof shutter sheet shutoff.
In recent years, along with the continuous appearance of some large space floors, when adopting the first conventional scheme, needing the lintel checking large span whether can bear the brick load on top, bringing to construction necessarily loaded down with trivial details simultaneously.When adopting first scheme, a cord moving top to cannot carry out the fine fitment of surface layer, can not meet architectural aesthetics effect.
Utility model content
Utility model object: a kind of plugging structure that can carry out shutoff to hole, large space floor fire resistance rolling shutter door top is provided.
Technical scheme: the plugging structure at hole, large space floor fire resistance rolling shutter door top described in the utility model, the fire prevention rock cotton board comprise crab-bolt, upper and lower two transverse horizontal arrange main joist, being equidistantly laid in the secondary joist on upper and lower two main joist front and back sides and being covered on front and back sides secondary joist; Fire prevention rock wool layer is filled with between the fire prevention rock cotton board of front and back sides; Upper and lower two main joists are arranged on the downside of top concrete beam plate and the upper side of bottom fire curtain box respectively by crab-bolt.
Adopt and secondary joist is set on the front and back sides of upper and lower two main joists, support and connection effect can either be played to upper and lower two main joists, make plugging structure to the protective rolling curtain box mineralization pressure of bottom, fire prevention rock cotton board can not be conveniently installed again; Adopt and fire prevention rock cotton board is all set in side, front and back, in rolling door, can all play the effect of fire prevention isolation in outside; Adopt fire prevention rock wool layer can play the effect of fire prevention isolation further in plugging structure inside.
As further improvement of the utility model scheme, clog in the contact position of prevent fires rock cotton board and fire curtain box and seal glue-line of preventing fires.Adopt sealing fire prevention glue-line to play sealing function, fireproof performance can be improved further again.
As further restriction scheme of the present utility model, crab-bolt is chemical anchor bolts.Adopt chemical anchor bolts effectively can guarantee the installation strength of plugging structure.
The utility model compared with prior art, its beneficial effect is: (1) adopts and arrange secondary joist on the front and back sides of upper and lower two main joists, support and connection effect can either be played to upper and lower two main joists, plugging structure is made to the protective rolling curtain box mineralization pressure of bottom, fire prevention rock cotton board can not to be conveniently installed again; (2) employing all arranges fire prevention rock cotton board in side, front and back, can all play the effect of fire prevention isolation in outside in rolling door; (3) fire prevention rock wool layer is adopted can to play the effect of fire prevention isolation further in plugging structure inside.
Accompanying drawing explanation
Fig. 1 is side-looking structural representation of the present utility model;
Fig. 2 is I-I place sectional view in Fig. 1.
In figure: 1, crab-bolt, 2, main joist, 3, secondary joist, 4, fire prevention rock cotton board, 5, fire curtain box, 6, sealing fire prevention glue-line, 7, fire prevention rock wool layer, 8, concrete beam plate.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical solutions of the utility model are described in detail, but protection domain of the present utility model is not limited to described embodiment.
Embodiment 1:
As illustrated in fig. 1 and 2, the plugging structure at hole, large space floor fire resistance rolling shutter door top of the present utility model comprises: crab-bolt 1, upper and lower two transverse horizontal arrange main joist 2, are equidistantly laid in the secondary joist 3 on upper and lower two main joist 2 front and back sides and the fire prevention rock cotton board 4 that is covered on front and back sides secondary joist 3.
Wherein, between the fire prevention rock cotton board 4 of front and back sides, be filled with fire prevention rock wool layer 7; Upper and lower two main joists 2 are arranged on the downside of concrete beam plate 8 on top and the upper side of the fire curtain box 5 of bottom respectively by crab-bolt 1; Clog in the contact position of rock cotton board 4 with fire curtain box 5 that prevent fires and seal glue-line 6 of preventing fires; Crab-bolt 1 is chemical anchor bolts.
The plugging structure at hole, large space floor fire resistance rolling shutter door top of the present utility model is when constructing, and first commitment positions band line boring on the concrete beam plate 8 of large space floor, implants crab-bolt 1, be connected by the main joist 2 holding hole in advance successfully with crab-bolt 1; Above fire curtain box 5, adopt the main joist 2 that said method and both sides fire stop are connected and fixed, secondary joist 3 upper end is connected with the main joist 2 on top, and secondary joist 3 lower end is connected with the main joist 2 of bottom, forms integral support; While fire prevention rock cotton board 4 piecemeal is fixed on outside secondary joist 3, the rock wool layer 7 of filling fire prevention from bottom to top, until whole hole is all sealed tight, gap place fill plug seal between fire prevention rock cotton board 4 and fire curtain box 5 top is prevented fires glue-line 6, after hole becomes fire stop according to the method shutoff, secondary decoration can be carried out in fire prevention rock cotton board 4.
As mentioned above, although represented with reference to specific preferred embodiment and described the utility model, it shall not be construed as the restriction to the utility model self.Under the spirit and scope prerequisite of the present utility model not departing from claims definition, various change can be made in the form and details to it.
Claims (3)
1. the plugging structure at hole, large space floor fire resistance rolling shutter door top, is characterized in that: the fire prevention rock cotton board (4) comprising crab-bolt (1), upper and lower two transverse horizontal arrange main joist (2), be equidistantly laid in the secondary joist (3) on upper and lower two main joist (2) front and back sides and be covered on front and back sides secondary joist (3); Fire prevention rock wool layer (7) is filled with between the fire prevention rock cotton board (4) of front and back sides; Upper and lower two main joists (2) are arranged on the downside of top concrete beam plate (8) and the upper side of bottom fire curtain box (5) respectively by crab-bolt (1).
2. the plugging structure at hole, large space floor fire resistance rolling shutter door top according to claim 1, is characterized in that: clog in the contact position of rock cotton board (4) with fire curtain box (5) that prevent fires and seal glue-line (6) of preventing fires.
3. the plugging structure at hole, large space floor fire resistance rolling shutter door top according to claim 1 and 2, is characterized in that: crab-bolt (1) is chemical anchor bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520792949.XU CN205116436U (en) | 2015-10-14 | 2015-10-14 | Block structure at big space floor fireproof rolling shutter door upper portion entrance to a cave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520792949.XU CN205116436U (en) | 2015-10-14 | 2015-10-14 | Block structure at big space floor fireproof rolling shutter door upper portion entrance to a cave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205116436U true CN205116436U (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520792949.XU Active CN205116436U (en) | 2015-10-14 | 2015-10-14 | Block structure at big space floor fireproof rolling shutter door upper portion entrance to a cave |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205116436U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106760003A (en) * | 2016-12-13 | 2017-05-31 | 中国建筑第二工程局有限公司 | Fireproof plugging structure and its construction method below raised flooring |
| CN107288511A (en) * | 2017-07-31 | 2017-10-24 | 中国冶集团有限公司 | Fire resistance rolling shutter door guide rail plugging device and its construction method |
-
2015
- 2015-10-14 CN CN201520792949.XU patent/CN205116436U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106760003A (en) * | 2016-12-13 | 2017-05-31 | 中国建筑第二工程局有限公司 | Fireproof plugging structure and its construction method below raised flooring |
| CN106760003B (en) * | 2016-12-13 | 2022-04-19 | 中国建筑第二工程局有限公司 | Fireproof blocking structure below raised floor and construction method thereof |
| CN107288511A (en) * | 2017-07-31 | 2017-10-24 | 中国冶集团有限公司 | Fire resistance rolling shutter door guide rail plugging device and its construction method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |