CN114753753A

CN114753753A - Compound steel fire prevention rolling slats door

Info

Publication number: CN114753753A
Application number: CN202210298693.1A
Authority: CN
Inventors: 骆浙兵; 骆柯羽; 吕玉雅
Original assignee: Hangzhou Huabo Fire Fighting Equipment Co ltd
Current assignee: Hangzhou Huabo Fire Fighting Equipment Co ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-07-15
Anticipated expiration: 2042-03-22
Also published as: CN114753753B

Abstract

The application discloses compound steel fire prevention rolling slats door, relate to fire prevention rolling slats door's technical field, including the portal, the curtain board, rotate the spool that sets up on the portal, drive spool pivoted rolling slats door machine, curtain board upper end fixed connection is on the spool, the curtain board comprises the linking of the curtain piece that the multichip structure is the same, the relative inboard of portal all is provided with and supplies the curtain piece to correspond the one end card and go into and the guide way that slides, be provided with the water storage box on the portal, be provided with between curtain board and the water storage box and be used for carrying the water in the water storage box to the curtain piece in and be used for with water by the inside outside spun water spray mechanism of curtain piece, be provided with the dry powder fire extinguishing agent in the curtain piece, be provided with the linkage piece through water spray mechanism with dry powder fire extinguishing agent blowout curtain piece in the curtain piece. This application plays through water, dry powder extinguishing agent and puts out a fire and reduce the effect of curtain board temperature, effectively improves the life of rolling slats door and long when with the contact of naked light.

Description

Compound steel fire prevention rolling slats door

Technical Field

The application relates to the technical field of fireproof rolling shutter doors, in particular to a composite steel fireproof rolling shutter door.

Background

The common steel fire-proof rolling door is a rolling door made of steel material, such as curtain plate, guide rail, seat plate, lintel and protective cover, and is matched with rolling door machine and control box. The fire-fighting equipment is used as important fire-fighting equipment in fire-fighting subareas of various industrial, civil and public buildings, has the functions of fire prevention, smoke isolation, fire spread inhibition and personnel evacuation protection, and is widely applied to occasions with dense personnel, such as high-rise buildings, large-scale shopping malls and the like.

With respect to the related art in the above, the inventors consider that: the common steel fire-proof rolling shutter door can prevent the spread of fire in a certain time range when a fire disaster happens, and when the fire disaster is serious, the rolling shutter door is burnt after being contacted with open fire for a long time, so that the improvement is needed.

Disclosure of Invention

In order to solve the problem that ordinary steel fire prevention rolling slats door can't contact with the naked light for a long time, this application provides a compound steel fire prevention rolling slats door.

The application provides a compound steel fire prevention rolling slats door adopts following technical scheme:

the utility model provides a compound steel fire prevention rolling slats door, includes portal, curtain board, rotates and sets up spool, drive spool pivoted rolling door machine on the portal, curtain board upper end fixed connection is on the spool, the curtain board comprises the linking of the curtain piece that the multi-disc structure is the same, the relative inboard of portal all is provided with and supplies the curtain piece to correspond one end card and go into and the guide way that slides, be provided with the water storage box on the portal, be provided with between curtain piece and the water storage box and be used for carrying the water in the water storage box to the curtain piece in and be used for with water by the inside outside spun water spray mechanism in the curtain piece, be provided with the dry powder fire extinguishing agent in the curtain piece, be provided with the linkage piece with dry powder fire extinguishing agent blowout curtain piece through water spray mechanism in the curtain piece.

By adopting the technical scheme, when a fire disaster occurs, the rolling door machine is started to drive the rolling shaft to rotate, so that the curtain plate descends from top to bottom along the extension direction of the guide groove, the water storage tank is externally connected with a water source to ensure that enough water is stored in the tank, the water spraying mechanism injects water in the water storage tank into the curtain plate to play a role in cooling the curtain plate so as to prolong the service life of the curtain plate, the water spraying mechanism enables the dry powder extinguishing agent to be sprayed out of the curtain plate through the linkage piece, volatile decomposition products of inorganic salt in the dry powder extinguishing agent and free radicals or active radicals generated by fuel in the combustion process have chemical inhibition and negative catalysis effects, so that the combustion chain reaction is interrupted, the fire behavior near the curtain plate is effectively reduced, the service life of the curtain plate is further prolonged, when the dry powder extinguishing agent is exhausted, the water is sprayed out of the curtain plate by the water spraying mechanism, the fire behavior near the curtain plate is continuously reduced, and the temperature of the curtain plate is reduced, and the service life of the curtain plate is further prolonged, and the service life of the roller shutter door and the contact time of the roller shutter door and open fire are effectively prolonged.

Optionally, be provided with a plurality of chambeies of placing in the curtain piece, the dry powder fire extinguishing agent sets up in placing the intracavity, curtain piece one side is provided with quantity and places the chamber and correspond and with the water conservancy diversion hole of placing the chamber intercommunication, the linkage sets up in placing the intracavity, water spray mechanism can communicate and place chamber and water storage box.

Through adopting above-mentioned technical scheme, the intracavity of placing of water transport to the curtain piece in the water storage box is constructed to the water spray for the linkage will place the dry powder fire extinguishing agent of intracavity and outwards spout through the water conservancy diversion hole in by the curtain board, realize the effect of putting out a fire, place the effect that the water of intracavity played the cooling to the curtain piece simultaneously, when dry powder fire extinguishing agent exhausts, place the water of intracavity and outwards spout through the water conservancy diversion hole, continue to put out a fire and the effect of cooling.

Optionally, the linkage includes the slide board, sets up the seal membrane on the slide board, the slide board slides and sets up and divide into the collection powder chamber, the chamber that catchments in placing the intracavity and will placing the chamber, the dry powder fire extinguishing agent sets up in the collection powder intracavity, the slide board is provided with the through-hole towards one side in water conservancy diversion hole, the seal membrane covers the through-hole, it is provided with the membrane piece of opening that is used for puncturing the seal membrane to place one side that the chamber is close to the water conservancy diversion hole.

By adopting the technical scheme, along with the sliding of the sliding plate, the capacities of the powder collecting cavity and the water collecting cavity are changed, and when the fire is in the initial stage or is small, water enters the water collecting cavities of the same curtain piece to play a role in cooling the curtain piece; when the fire becomes great, water is continuously injected into the curtain sheet, the sliding plate slides towards the direction close to the flow guide hole under the action of water, the dry powder extinguishing agent in the powder collection cavity is extruded to be sprayed out through the flow guide hole to extinguish the fire, when the sliding plate slides to abut against the sealing membrane and the film opening member, the film opening member punctures the sealing membrane, water enters the flow guide hole through the through hole and is sprayed out to extinguish the fire, so that the continuous fire extinguishing effect is realized, and the service life of the rolling door is effectively prolonged; when a fire disaster does not happen, a certain amount of water is injected into the water collecting cavity in advance and stored, and when the fire disaster happens, water is injected continuously, so that the plurality of sliding plates in the curtain sheet can slide synchronously, and the dry powder extinguishing agent and the water are sprayed synchronously.

Optionally, the film opening member is a film opening ring arranged on the side wall of the placing cavity, and a plurality of spikes arranged on one side of the film opening ring facing the sliding plate.

Through adopting above-mentioned technical scheme, the board that slides towards the direction that is close to the membrane ring of opening under the effect of water for seal membrane and spine butt, the spine can puncture the seal membrane fast, makes water pass through-hole, simple structure.

Optionally, curtain piece one end is provided with the inlet tube that the chamber was placed in the intercommunication, and is adjacent through the connecting pipe intercommunication between the inlet tube, the inlet tube communicates with the chamber that catchments that corresponds, water spray mechanism is including the outlet pipe of intercommunication water storage box, set up valve and the water pump on the outlet pipe, the outlet pipe passes through the connecting piece intercommunication with one of them inlet tube.

Through adopting above-mentioned technical scheme, the one end of keeping away from corresponding curtain piece except that the inlet tube outside the inlet tube on the curtain piece with spool fixed connection is sealed, and the water pump is used for taking the water in the water storage box out, makes water pass through outlet pipe, inlet tube, and the break-make of a plurality of inlet tubes of rethread connecting pipe intercommunication, valve control outlet pipe water-logging to realize the water injection of a plurality of curtain pieces.

Optionally, the adapter sleeve of outlet pipe one end is located for the cover to the connecting piece, adapter sleeve one end supplies the inlet tube that corresponds to insert and rotate, the circumference inner wall of adapter sleeve is provided with the ring that blocks water, the circumference inner wall of the ring that blocks water laminates with the circumference outer wall of inlet tube, the circumference inner wall of adapter sleeve is provided with at least three rotation groove, it is provided with the steel ball to rotate the inslot, the steel ball stretches out and rotates the groove and contact with the inlet tube, be provided with the annular that supplies steel ball card income and slide on the circumference outer wall of inlet tube.

By adopting the technical scheme, one end of the connecting sleeve is fixedly connected with the water outlet pipe, and the other end of the connecting sleeve is rotatably connected with the water inlet pipe, so that the water blocking ring can improve the connection tightness of the connecting sleeve and the water inlet pipe and effectively reduce the seepage of water; the steel balls extend out of the rotating groove to be in contact with the circumferential outer wall of the water inlet pipe, the water inlet pipe rotates around the axial lead of the connecting sleeve, and the steel balls rotate in the rotating groove, so that the rotating stability is improved; the connecting sleeve is rotationally connected with the water inlet pipe, and when the scroll drives the curtain sheet to rotate, the winding of the water outlet pipe caused by the displacement change of the water inlet pipe can be effectively reduced, and the circulation of water in the water outlet pipe is ensured; the steel ball is clamped and slides in the ring groove, so that the rotary connection of the connecting sleeve and the water inlet pipe is realized.

It is optional, be provided with locking groove and sliding tray in opposite directions on the pore wall in water conservancy diversion hole, the sliding tray internal slipping is provided with the sprue, drives the reset spring that the sprue slided, sprue one end inserts and locks the inslot, lock the inslot and be provided with the fuse, fuse one end and locking groove tank bottom connection, the other end are connected with the sprue.

By adopting the technical scheme, when the fuse link is connected with the blocking block, the blocking block partially extends out of the sliding groove and is inserted into the locking groove, the reset spring is stressed to generate elastic deformation and stretch, and the blocking block blocks the flow guide hole so as to block water and the dry powder extinguishing agent from passing through the flow guide hole; when the temperature of the fire is raised, the fuse wire is disconnected, the reset spring is elastically reset and contracted, the blocking block is moved out of the locking groove and returns to the sliding groove, so that water and the dry powder extinguishing agent pass through the flow guide hole, and the dispersion of the dry powder extinguishing agent can be reduced when the fire does not occur.

Optionally, one end of the reset spring is connected with the bottom of the sliding groove, the other end of the reset spring is connected with the blocking block, and a trigger button used for starting the valve and the water pump is arranged at the bottom of the sliding groove.

Through adopting above-mentioned technical scheme, reset spring elasticity resets and contracts, and when the sprue shifted out the locking groove and got back to the sliding tray, sprue extruded trigger button, trigger button started valve and water pump take the water of water storage box out to automatic accomplish earlier with the effect that dry powder extinguishing agent was put out a fire and the water was put out a fire again, can begin to put out a fire at the very first time that the intensity of a fire becomes big.

Optionally, one side of the placing cavity close to the diversion hole is provided with a butt spring, one end of the butt spring is connected with the sliding plate, and the other end of the butt spring is connected with the side wall of the placing cavity.

Through adopting above-mentioned technical scheme, when not taking place the conflagration, pour into a certain amount of water in advance to catchment the intracavity and, the butt spring can play the effect that the restriction slide board slided, avoids extruding the powder collection chamber with dry powder extinguishing agent in advance.

Optionally, the surface of the curtain sheet is provided with a sepiolite layer.

By adopting the technical scheme, the sepiolite layer is sepiolite coating, the sepiolite coating is coated on the outer surface of the curtain sheet, and the sepiolite has the effects of high temperature resistance, heat insulation and flame retardance so as to improve the high temperature resistance, heat insulation and flame retardance of the curtain sheet and prolong the service life of the curtain sheet.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the effects of extinguishing fire and reducing the temperature of the curtain plate are achieved through the water and the dry powder extinguishing agent, the service life of the rolling door is effectively prolonged, and the contact time with open fire is prolonged;

2. the sepiolite has the effects of high temperature resistance, heat insulation and flame retardance so as to improve the high temperature resistance, heat insulation and flame retardance of the curtain sheet and prolong the service life of the curtain sheet;

3. the effect of extinguishing fire by using the dry powder extinguishing agent firstly and then extinguishing fire by using water is automatically finished, and the fire can be extinguished at the first time when the fire intensity becomes large.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a gantry of an embodiment of the present application;

FIG. 3 is a schematic cross-sectional view of a shade panel according to an embodiment of the present application;

FIG. 4 is a schematic view of the curtain and water spray mechanism of an embodiment of the present application;

fig. 5 is a schematic cross-sectional view of a connecting sleeve of an embodiment of the present application.

Description of reference numerals: 1. a gantry; 11. mounting grooves; 12. a guide groove; 2. a curtain plate; 21. a curtain sheet; 22. a placement chamber; 221. a powder collecting cavity; 222. a water collection cavity; 23. a flow guide hole; 24. a water inlet pipe; 241. a ring groove; 25. a locking groove; 26. a sliding groove; 27. an abutment spring; 28. a connecting pipe; 3. a reel; 4. a door roller; 5. a water storage tank; 6. a water spraying mechanism; 61. a water outlet pipe; 62. a valve; 63. a water pump; 64. connecting sleeves; 641. a rotating groove; 65. a water-blocking ring; 66. steel balls; 7. a linkage member; 71. a slide plate; 72. sealing the film; 73. a through hole; 8. opening the membrane; 81. opening a membrane ring; 82. pricking by using a sharp needle; 9. blocking; 91. a return spring; 92. a fuse; 93. a trigger button; 10. a counterweight block;

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses compound steel fire prevention rolling slats door.

Referring to fig. 1 and 2, the composite steel fire-proof rolling door comprises a door frame 1, a curtain plate 2, a scroll 3, a rolling door machine 4 and a control box, wherein the control box controls the rolling door machine 4 to be started and closed. Mounting groove 11 has been seted up to portal 1 upper end, and spool 3 rotates to be connected in mounting groove 11, rolling door machine 4 fixed connection in mounting groove 11 and with the one end fixed connection of spool 3, rolling door machine 4 is used for driving spool 3 and rotates around self axial lead.

Referring to fig. 1 and 2, the lower end of the curtain plate 2 is fixedly connected with a balancing weight 10, so that the curtain plate 2 can slide downwards conveniently. The curtain board 2 is formed by connecting a plurality of curtain pieces 21 with the same structure, wherein one curtain piece 21 is fixedly connected with the scroll 3 through a bolt. The opposite inner sides of the gantry 1 are provided with guide grooves 12 extending along the vertical direction, and two ends of the curtain sheet 21 are respectively clamped into and slide in the corresponding guide grooves 12.

Referring to fig. 1 and 2, a water storage tank 5 is fixedly connected in the mounting groove 11, a water spraying mechanism 6 for conveying water in the water storage tank 5 into the curtain sheet 21 is installed between the water storage tank 5 and the curtain sheet 2, and the water spraying mechanism 6 is also used for spraying water outwards from the interior of the curtain sheet 21. The curtain sheet 21 is also filled with a dry powder extinguishing agent, the linkage 7 is installed in the curtain sheet 21, and the water spraying mechanism 6 sprays the dry powder extinguishing agent outwards from the interior of the curtain sheet 21 through the linkage 7.

Referring to fig. 3, a plurality of placing cavities 22 are integrally formed in the curtain sheet 21 (the number of the placing cavities 22 is selected according to actual requirements), the placing cavities 22 are arranged at intervals along the length direction of the curtain sheet 21, and the water spraying mechanism 6 can communicate the placing cavities 22 with the water storage tank 5. The curtain piece 21 is seted up quantity and position towards one side that the prevention takes place the intensity of a fire and is placed the water conservancy diversion hole 23 that the chamber 22 corresponds, and water conservancy diversion hole 23 one end is run through curtain piece 21 lateral wall, the other end and is placed the chamber 22 intercommunication, and water conservancy diversion hole 23 supplies dry powder extinguishing agent, water to pass through, and linkage 7 places in placing the chamber 22.

Referring to fig. 3, the link member 7 includes a sliding plate 71 and a sealing film 72 connected to the sliding plate 71, the sliding plate 71 slides in the placing cavity 22 toward a direction close to or away from the diversion hole 23, a gap communicated with the placing cavity 22 is formed by forming a gap on the side wall of the curtain 21, the gap is filled after the sliding plate 71 is placed, a butt spring 27 extending along the sliding direction of the sliding plate 71 is connected to the side wall of the placing cavity 22 close to the diversion hole 23, one end of the butt spring 27 is fixedly connected to the side wall of the sliding plate 71, and the other end of the butt spring is fixedly connected to the side wall of the placing cavity 22. The placing cavity 22 is divided into a powder collecting cavity 221 and a water collecting cavity 222 by the sliding plate 71, the diversion holes 23 are positioned in the powder collecting cavity 221, the powder extinguishing agent is filled in the powder collecting cavity 221, and the water collecting cavities 222 in the same curtain sheet 21 are mutually communicated.

Referring to fig. 3, a through hole 73 is formed through one side of the sliding plate 71 facing the diversion hole 23, and a sealing film 72 is fixedly connected to the through hole 73 and covers the through hole 73 to block water and the dry powder extinguishing agent from passing through the through hole 73. The side wall of the placing cavity 22 close to the diversion hole 23 is connected with a film opening member 8 for puncturing the sealing film 72, the film opening member 8 is fixedly connected with a film opening ring 81 on the side wall of the placing cavity 22 and a plurality of sharp spines 82 (the number of the sharp spines 82 is selected according to actual requirements) which are fixedly connected with the film opening ring 81 and face one side of the sliding plate 71, and the plurality of sharp spines 82 are arranged at intervals along the circumferential direction of the film opening ring 81.

Referring to fig. 4 and 5, one end of the curtain sheet 21 far away from the door rolling machine 4 is fixedly connected with a water inlet pipe 24, the water inlet pipe 24 is communicated with one of the placing cavities 22, the end of the water inlet pipe 24 communicated with the placing cavity 22 is positioned in the water collecting cavity 222, adjacent water inlet pipes 24 are communicated through a connecting pipe 28, the water spraying mechanism 6 comprises a water outlet pipe 61 communicated with the water storage tank 5, a valve 62 and a water pump 63 which are fixedly connected to the wall of the mounting groove 11 far away from the door rolling machine 4 and communicated with the water outlet pipe 61, the valve 62 and the water pump 63 are both electrically connected with a control box, and the control box controls the starting and the closing of the valve 62 and the water pump 63. The water inlet pipe 24 on the curtain sheet 21 fixedly connected with the scroll 3 is communicated with the water outlet pipe 61 through a connecting piece, and one end of the water inlet pipe 24 on the other curtain sheet 21, which is far away from the curtain sheet 21, is closed. The water inlet pipe 24, the water outlet pipe 61 and the connecting pipe 28 are hoses.

Referring to fig. 4 and 5, the connecting member is a connecting sleeve 64, one end of the connecting sleeve 64 is sleeved and fixed at one end of the water outlet pipe 61, the other end of the connecting sleeve 64 is used for inserting and rotating one end of the corresponding water inlet pipe 24, a water blocking ring 65 with the same axial line is fixedly connected to the circumferential inner wall of the connecting sleeve 64, the circumferential inner wall of the water blocking ring 65 is attached to the circumferential outer wall of the water inlet pipe 24, and the circumferential outer wall of the water blocking ring 65 is attached to the circumferential inner wall of the connecting sleeve 64.

Referring to fig. 4 and 5, three rotating grooves 641 are spaced apart from each other on the circumferential inner wall of the connecting sleeve 64, steel balls 66 are embedded in the rotating grooves 641, the steel balls 66 rotate in the rotating grooves 641, and the notches of the rotating grooves 641 are formed in a necking manner to limit the sliding of the steel balls 66 out of the rotating grooves 641. The part of the steel ball 66 far away from the rotating groove 641 extends out of the notch of the rotating groove 641 to be in contact with the circumferential outer wall of the water inlet pipe 24, the circumferential outer wall of the water inlet pipe 24 is provided with a ring groove 241 with the same axial line, and the steel ball 66 can be embedded and can slide around the axial line of the ring groove 241.

Referring to fig. 3 and 4, the locking groove 25 and the sliding groove 26 are provided on the hole wall of the diversion hole 23, the notch of the locking groove 25 and the notch of the sliding groove 26 are arranged in opposite directions, the sliding groove 26 is connected with the blocking block 9 sliding along the extending direction of the sliding groove 26, the reset spring 91 driving the blocking block 9 to slide, one end of the reset spring 91 is fixedly connected with the bottom of the sliding groove 26, and the other end of the reset spring is fixedly connected with the end of the blocking block 9 facing the sliding groove 26.

Referring to fig. 3, locking groove 25 in-connection has fuse 92, fuse 92 one end and the tank bottom fixed connection of locking groove 25, the other end and sprue 9 fixed connection, and the tip that sliding tray 26 was kept away from to sprue 9 stretches out sliding tray 26 and inserts in locking groove 25, and sprue 9 blocks guiding hole 23. A trigger button 93 is fixedly connected to the bottom of the sliding groove 26, and the trigger button 93 is electrically connected with the valve 62 and the water pump 63 and used for starting the valve 62 and the water pump 63. The side wall of the curtain piece 21 is provided with a gap to fill the gap with the blocking block 9, the return spring 91, the fuse 92 and the trigger button 93 after installation.

Referring to fig. 3, the curtain sheet 21 is connected with a sepiolite layer, and the sepiolite layer is sepiolite paint coated on the outer surface of the curtain sheet 21, so as to improve high temperature resistance, heat insulation and flame retardancy of the curtain sheet 21 and prolong the service life of the curtain sheet 21.

The implementation principle of the composite steel fireproof rolling door in the embodiment of the application is as follows:

when the conflagration takes place, start rolling door machine 4 and drive the spool 3 and rotate, and then curtain 2 descends from top to bottom along the extending direction of guide way 12, water storage box 5 has sufficient water storage in order to guarantee the incasement through external water source, through control box start-up water pump 63 with open valve 62, with the water injection in the water storage box 5 curtain piece 21 collect water in the chamber 222, play the effect of cooling to curtain piece 21, with the life of improvement curtain 2, and close water pump 63 and valve 62, it has a certain amount of water to keep collecting water and having in the chamber 222.

When the fire becomes bigger, the fuse wire 92 is heated and broken, the block 9 slides back to the sliding groove 26 under the elastic reset of the reset spring 91, the block 9 is abutted against the trigger switch, the trigger switch starts the water pump 63 and opens the valve 62, water is continuously injected in the water collecting cavity 222, the sliding plate 71 slides and extrudes the dry powder extinguishing agent to be sprayed out from the curtain sheet 21, the volatile decomposition products of the inorganic salt in the dry powder extinguishing agent and the free radicals or active groups generated by the fuel in the combustion process generate chemical inhibition and negative catalysis, the combustion chain reaction is interrupted, the fire near the curtain plate 2 is effectively reduced, the service life of the curtain plate 2 is further improved, when the dry powder extinguishing agent is exhausted, the sealing film 72 is contacted with the sharp pricks 82 and is pierced, water is sprayed out from the inside to the outside of the curtain sheet 21 through the through holes 73 and the flow guide holes 23, the fire near the curtain plate 2 is continuously reduced and the temperature of the curtain plate 2 is reduced, the service life of the curtain plate 2 is further prolonged, and the service life of the rolling door and the contact time of the rolling door and open fire are effectively prolonged.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a compound steel fire prevention rolling slats door, includes portal (1), curtain board (2), rotates and sets up spool (3), drive spool (3) pivoted rolling door machine (4) on portal (1), curtain board (2) upper end fixed connection is on spool (3), curtain board (2) are linked up by the same curtain piece of multi-disc structure (21) and are constituteed its characterized in that: the utility model discloses a dry powder extinguishing agent, including portal (1), portal (1) relative inboard all is provided with supplies curtain piece (21) to correspond one end card and go into and the guide way (12) that slide, be provided with water storage box (5) on portal (1), be provided with between curtain board (2) and water storage box (5) and be used for carrying the water in water storage box (5) to in curtain piece (21) and be used for with water by curtain piece (21) inside outside spun water spray mechanism (6), be provided with the dry powder extinguishing agent in curtain piece (21), be provided with linkage (7) through water spray mechanism (6) with dry powder extinguishing agent blowout curtain piece (21) in curtain piece (21).

2. A composite steel fire resistant rolling shutter door according to claim 1, characterised in that: be provided with a plurality of chambeies (22) of placing in curtain piece (21), the dry powder fire extinguishing agent sets up in placing chamber (22), curtain piece (21) one side is provided with quantity and places chamber (22) and correspond and with place water conservancy diversion hole (23) of chamber (22) intercommunication, linkage (7) set up in placing chamber (22), water spray mechanism (6) can communicate and place chamber (22) and water storage box (5).

3. A composite steel fire resistant rolling shutter door as claimed in claim 2, wherein: linkage (7) including slide plate (71), set up seal membrane (72) on slide plate (71), slide plate (71) slide set up place chamber (22) in and will place chamber (22) and divide into collection powder chamber (221), chamber (222) catchments, dry powder fire extinguishing agent sets up in collection powder chamber (221), slide plate (71) are provided with through-hole (73) towards one side of water conservancy diversion hole (23), seal membrane (72) cover through-hole (73), one side of placing chamber (22) and being close to water conservancy diversion hole (23) is provided with division membrane spare (8) that are used for puncturing seal membrane (72).

4. A composite steel fire resistant rolling shutter door as claimed in claim 3, wherein: the film opening piece (8) is a film opening ring (81) arranged on the side wall of the placing cavity (22) and a plurality of spikes (82) arranged on one side of the film opening ring (81) facing the sliding plate (71).

5. A composite steel fire resistant rolling shutter door as claimed in claim 3, wherein: curtain piece (21) one end is provided with inlet tube (24) that the intercommunication was placed chamber (22), and is adjacent through connecting pipe (28) intercommunication between inlet tube (24), inlet tube (24) and the chamber (222) intercommunication that catchments that corresponds, water spray mechanism (6) are including outlet pipe (61) of intercommunication water storage box (5), set up valve (62) and water pump (63) on outlet pipe (61), outlet pipe (61) pass through the connecting piece intercommunication with one of them inlet tube (24).

6. A composite steel fire resistant rolling shutter door according to claim 5, characterised in that: connecting sleeve (64) of outlet pipe (61) one end is located for the cover to the connecting piece, inlet tube (24) that connecting sleeve (64) one end confession corresponds are inserted and are rotated, the circumference inner wall of connecting sleeve (64) is provided with and hinders water ring (65), the circumference inner wall that hinders water ring (65) and the circumference outer wall laminating of inlet tube (24), the circumference inner wall of connecting sleeve (64) is provided with at least three rotation groove (641), be provided with steel ball (66) in rotation groove (641), steel ball (66) stretch out rotation groove (641) and inlet tube (24) contact, be provided with on the circumference outer wall of inlet tube (24) and supply steel ball (66) card to go into and annular (241) that slide.

7. A composite steel fire resistant rolling shutter door according to claim 5, characterised in that: be provided with locking groove (25) and sliding tray (26) on the pore wall in water conservancy diversion hole (23) in opposite directions, sliding tray (26) internal slipping is provided with sprue (9), drives reset spring (91) that sprue (9) slided, sprue (9) one end is inserted in locking groove (25), be provided with fuse (92) in locking groove (25), fuse (92) one end is connected, the other end is connected with sprue (9) with locking groove (25) tank bottom.

8. A composite steel fire resistant rolling shutter door according to claim 7, characterised in that: one end of the reset spring (91) is connected with the bottom of the sliding groove (26), the other end of the reset spring is connected with the blocking block (9), and a trigger button (93) used for starting the valve (62) and the water pump (63) is arranged at the bottom of the sliding groove (26).

9. A composite steel fire resistant rolling shutter door according to claim 3, characterised in that: one side of the placing cavity (22) close to the diversion hole (23) is provided with an abutting spring (27), one end of the abutting spring (27) is connected with the sliding plate (71), and the other end of the abutting spring is connected with the side wall of the placing cavity (22).

10. A composite steel fire resistant rolling shutter door as claimed in claim 1, wherein: the surface of the curtain sheet (21) is provided with a sea foam stone layer.