CN216239057U - Expansion joint fireproof structure - Google Patents
Expansion joint fireproof structure Download PDFInfo
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- CN216239057U CN216239057U CN202121127411.9U CN202121127411U CN216239057U CN 216239057 U CN216239057 U CN 216239057U CN 202121127411 U CN202121127411 U CN 202121127411U CN 216239057 U CN216239057 U CN 216239057U
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Abstract
The utility model provides a fireproof structure of an expansion joint, which comprises a first steel plate, a second steel plate, a steel belt, a sliding member, a fire retardant material layer and an expansion strip, wherein the first steel plate is fixed on the first steel plate; the step at the upper end of the first steel plate is fixed to the upper surface of the left wall body through a fastener; the steel belt is fixed to the upper surface of the right wall body through a fastener, and the lower end of the steel belt is bent to form a rectangular steel belt pipe; the sliding component comprises a concave plate and a convex plate, the convex plate is slidably arranged in a groove of the concave plate, the concave plate is connected to the right wall body through a screw, and a rubber strip is arranged between the concave plate and the steel strip; the convex plate is connected with the side face of a second steel plate through a screw, the second steel plate is an n-shaped steel plate and is provided with a U-shaped groove with a downward opening; a U-shaped fire retardant material layer is further arranged between the left wall body and the right wall body, and supporting legs at two ends of the fire retardant material layer are respectively adhered to the U-shaped grooves of the first steel plate and the second steel plate; and metal foils are arranged on the upper surface and the lower surface of the fire retardant material layer.
Description
Technical Field
The utility model relates to the field of building expansion joints, in particular to a fireproof structure for an expansion joint.
Background
In high-rise buildings and large-volume buildings, gaps are usually reserved in some parts due to temperature, settlement, shock resistance and the like, and the gaps divide the buildings into a plurality of parts with independent structures, namely expansion joints. The arrangement of the deformation joint can solve the problems of excessive deformation and internal force generated by the building, but also brings new problems, such as the problem of fire prevention of the building with concealment and danger. The deformation joint penetrates through the whole building up and down, the caulking material has certain combustibility, the involved part is small, people usually cannot pay attention to the caulking material, and due to the chimney effect, fire and smoke can rapidly spread and expand through the part, so that the vertical fireproof subarea is completely ineffective, and great danger is realized.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a fireproof structure for an expansion joint, which has the advantages of better fireproof function and better anti-seismic performance, aiming at the defects and the defects of the prior art.
In order to achieve the purpose, the utility model adopts the technical scheme that: a fireproof structure for an expansion joint comprises a first steel plate, a second steel plate, a steel belt, a sliding component, a fire retardant material layer, a metal foil and an expansion strip; the first steel plate is a step-shaped strip-shaped steel plate, the upper end step of the first steel plate is fixed to the upper surface of the left wall body through a fastener, and a U-shaped groove with a downward opening is formed between the lower end step of the first steel plate and the side surface of the left wall body; the steel belt is in an inverted L shape, the steel belt is fixed to the upper surface of the right wall body through a fastener, the lower end of the steel belt is bent to form a rectangular steel belt pipe, a fireproof blanket is filled in the steel belt pipe, and a sliding component is arranged at the upper end of the steel belt pipe; the sliding component comprises a concave plate and a convex plate, the convex plate is slidably arranged in a groove of the concave plate, the concave plate is connected to the right wall body through a screw, and a rubber strip is arranged between the concave plate and the steel strip; the convex plate is connected with the side face of a second steel plate through a screw, the second steel plate is an n-shaped steel plate and is provided with a U-shaped groove with a downward opening; a U-shaped fire retardant material layer is further arranged between the left wall body and the right wall body, and supporting legs at two ends of the fire retardant material layer are respectively adhered to the U-shaped grooves of the first steel plate and the second steel plate; the fire retardant material layer comprises a first fire retardant material layer, a second fire retardant material layer and a third fire retardant material layer, and metal foils are arranged on the upper surface and the lower surface of the fire retardant material layer.
Preferably, an expansion strip is arranged between the fire retardant material layer and the left wall body.
Preferably, an expansion strip is arranged between the steel belt pipe and the fire retardant material layer and between the steel belt pipe and the right wall.
Preferably, the first fire retardant material layer and the third fire retardant material layer are ceramic blankets, and the second fire retardant material layer is a rock wool heat-insulating plate.
Preferably, metal foils can be arranged between the first fire retardant material layer and the second fire retardant material layer, and between the second fire retardant material layer and the third fire retardant material layer.
The utility model has the beneficial effects that: this structure is through setting up three-layer back-fire relief material layer, inflation strip and sliding member for fire prevention, flame retardant efficiency are good, through keeping apart, avoid spreading rapidly and enlarge, and the fire prevention effect is showing. Meanwhile, the influence of vibration on the internal fireproof component is reduced through the movement of the sliding component.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the principles of the utility model.
FIG. 1 is a schematic cross-sectional view of the present invention.
Wherein: 10 is left wall body, 20 is right wall body, 30 is first steel sheet, 31 is the fastener, 40 is the second steel sheet, 50 is the steel band, 51 is the steel band pipe, 52 is the fire blanket, 60 is the metal foil, 70 is the fire retardant material layer, 71 is first fire retardant material layer, 72 is the second fire retardant material layer, 73 is the third fire retardant material layer, 80 is sliding member, 81 is the notch board, 82 is the convex board, 83 is the rubber strip, 90 is the inflation strip.
Detailed Description
The present invention will be described in further detail with reference to fig. 1.
As shown in fig. 1, the fireproof structure for the expansion joint comprises a first steel plate 30, a second steel plate 40, a steel strip 50, a sliding member 80, a fire retardant material layer 70, a metal foil 60 and an expansion strip 90; the first steel plate 30 is a step-shaped strip-shaped steel plate, the upper end step of the first steel plate 30 is fixed to the upper surface of the left wall 10 through a fastener 31, and a U-shaped groove with a downward opening is formed between the lower end step of the first steel plate 30 and the side surface of the left wall 10; the steel belt 50 is in an inverted L shape, the steel belt 50 is fixed on the upper surface of the right wall body 20 through a fastener 31, the lower end of the steel belt 50 is bent to form a steel belt pipe 51 with a rectangular section, a fireproof blanket 52 is filled in the steel belt pipe 51, and the upper end of the steel belt pipe 51 is provided with a sliding member 80; the sliding member 80 comprises a concave plate 81 and a convex plate 82, the convex plate 82 is slidably arranged in a groove of the concave plate 81, the concave plate 81 is connected to the right wall body 20 through a screw, and a rubber strip 83 is arranged between the concave plate 81 and the steel strip 50; the convex plate 82 is connected with the side surface of the second steel plate 40 through a screw, and the second steel plate 40 is an n-shaped steel plate and is provided with a U-shaped groove with a downward opening; a U-shaped fire retardant material layer 70 is further arranged between the left wall 10 and the right wall 20, and supporting legs at two ends of the fire retardant material layer 70 are respectively adhered to the U-shaped grooves of the first steel plate 30 and the second steel plate 40; the fire retardant material layer 70 comprises a first fire retardant material layer 71, a second fire retardant material layer 72 and a third fire retardant material layer 73, and metal foils 60 are arranged on the upper surface and the lower surface of the fire retardant material layer 70.
In particular, an expansion strip 90 is disposed between the firestop material layer 70 and the left wall 10.
In specific implementation, an expansion strip 90 is respectively arranged between the steel belt pipe 51 and the fire retardant material layer 70 and between the steel belt pipe and the right wall 20.
In specific implementation, the first fire retardant material layer 71 and the third fire retardant material layer 73 are ceramic blankets, and the second fire retardant material layer 72 is a rock wool insulation board.
In particular, a metal foil 60 may be provided between the first and second layers 71, 72 and 73.
In practice, intumescent strip 90 helps prevent the migration of fire between right wall 20 and firestop material layer 70, and when exposed to high temperatures, helps fill any space between right wall 20 and firestop material layer 70 that is not protected by fire blanket 52.
Claims (5)
1. The utility model provides an expansion joint fire resistive construction which characterized in that: comprises a first steel plate, a second steel plate, a steel belt, a sliding component, a fire retardant material layer, a metal foil and an expansion strip; the first steel plate is a step-shaped strip-shaped steel plate, the upper end step of the first steel plate is fixed to the upper surface of the left wall body through a fastener, and a U-shaped groove with a downward opening is formed between the lower end step of the first steel plate and the side surface of the left wall body; the steel belt is in an inverted L shape, the steel belt is fixed to the upper surface of the right wall body through a fastener, the lower end of the steel belt is bent to form a rectangular steel belt pipe, a fireproof blanket is filled in the steel belt pipe, and a sliding component is arranged at the upper end of the steel belt pipe; the sliding component comprises a concave plate and a convex plate, the convex plate is slidably arranged in a groove of the concave plate, the concave plate is connected to the right wall body through a screw, and a rubber strip is arranged between the concave plate and the steel strip; the convex plate is connected with the side face of a second steel plate through a screw, the second steel plate is an n-shaped steel plate and is provided with a U-shaped groove with a downward opening; a U-shaped fire retardant material layer is further arranged between the left wall body and the right wall body, and supporting legs at two ends of the fire retardant material layer are respectively adhered to the U-shaped grooves of the first steel plate and the second steel plate; the fire retardant material layer comprises a first fire retardant material layer, a second fire retardant material layer and a third fire retardant material layer, and metal foils are arranged on the upper surface and the lower surface of the fire retardant material layer.
2. The fireproof structure for expansion joints according to claim 1, wherein: an expansion strip is arranged between the fire retardant material layer and the left wall body.
3. The fireproof structure for expansion joints according to claim 1, wherein: an expansion strip is respectively arranged between the belt pipe and the fire retardant material layer as well as between the belt pipe and the right wall.
4. The fireproof structure for expansion joints according to claim 1, wherein: the first fire retardant material layer and the third fire retardant material layer are ceramic blankets, and the second fire retardant material layer is a rock wool heat-insulating plate.
5. The fireproof structure for expansion joints according to claim 1, wherein: and metal foils are arranged between the first fire retardant material layer and the second fire retardant material layer as well as between the second fire retardant material layer and the third fire retardant material layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121127411.9U CN216239057U (en) | 2021-05-24 | 2021-05-24 | Expansion joint fireproof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121127411.9U CN216239057U (en) | 2021-05-24 | 2021-05-24 | Expansion joint fireproof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216239057U true CN216239057U (en) | 2022-04-08 |
Family
ID=80939858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121127411.9U Active CN216239057U (en) | 2021-05-24 | 2021-05-24 | Expansion joint fireproof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216239057U (en) |
-
2021
- 2021-05-24 CN CN202121127411.9U patent/CN216239057U/en active Active
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