CN215977831U - Steel construction antidetonation induced air firebreak device - Google Patents

Abstract

The utility model discloses a steel structure anti-seismic induced air fireproof device which comprises a fireproof wall, an air pipe, a fireproof cotton layer and two annular steel baffles, wherein the fireproof wall is arranged on a steel structure building, the fireproof wall is provided with a abdicating hole, the air pipe is arranged on the steel structure building and penetrates through the abdicating hole, the fireproof cotton layer is filled between the inner side wall of the abdicating hole and the outer side wall of the air pipe, and the two annular steel baffles are sleeved on the outer side wall of the air pipe in a matched manner and are positioned on two sides of the fireproof wall. According to the steel structure earthquake-resistant induced air fireproof device, the problem that a fireproof cotton layer is easy to separate from two ends of a gap between an air pipe and a fireproof wall and fall off can be solved.

Description

Steel construction antidetonation induced air firebreak device

Technical Field

The utility model relates to an air pipe installation structure, in particular to a steel structure earthquake-resistant induced air fireproof device.

Background

The steel structure building is one of the assembly type buildings, and has the advantages of rich shapes, high factory prefabrication, high assembly construction speed, excellent material performance, recyclable materials, low comprehensive manufacturing cost and the like.

When the air duct is installed to the steel construction building, there is some tuber pipe to need pass the steel construction building and prevents hot wall, in order to improve fire prevention effect, generally can fill the cotton layer of fire prevention in the gap department between tuber pipe and the hot wall, but after the longer time or steel construction building when vibrations appear because of the earthquake, the cotton layer of fire prevention breaks away from and drops from the tuber pipe and the both ends of preventing the gap between the hot wall easily to influence fire prevention effect.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a steel structure earthquake-resistant induced air fireproof device which can solve the problem that a fireproof cotton layer is easy to separate from two ends of a gap between an air pipe and a fireproof wall and fall off.

According to the embodiment of the utility model, the steel structure earthquake-resistant induced air fireproof device comprises:

the firewall is arranged on the steel structure building and provided with a abdicating hole;

the air pipe is arranged on the steel structure building and penetrates through the abdicating hole;

the fireproof cotton layer is filled between the inner side wall of the abdicating hole and the outer side wall of the air pipe;

and the two annular steel baffles are sleeved on the outer side wall of the air pipe in a matching way and are positioned on two sides of the firewall.

The steel structure earthquake-resistant induced air fireproof device provided by the embodiment of the utility model at least has the following technical effects:

when needing the installation tuber pipe, set up the hole of stepping down on the firewall, then hoist and mount the tuber pipe in the below of the floor of steel construction building to make the tuber pipe pass the hole of stepping down, later pack the cotton layer of fire prevention between the lateral wall of the inside wall in hole of stepping down and tuber pipe, two annular steel baffle are established to the cooperation cover on the lateral wall of tuber pipe at last, and make two annular steel baffle be located prevent that the both sides of wall are outer and be close to prevent that the position of hot wall can. According to the steel structure anti-seismic induced air fireproof device provided by the embodiment of the utility model, the annular steel baffle plates are sleeved on the outer side wall of the air pipe and on the two sides of the fireproof wall, and the annular steel baffle plates can reduce the situation that the fireproof cotton layer is separated from the two ends of the gap between the air pipe and the fireproof wall, so that the fireproof effect is better.

According to some embodiments of the utility model, the annular steel baffle has an outer diameter dimension greater than a bore diameter dimension of the abduction hole.

According to some embodiments of the utility model, a steel sleeve is sleeved between the two annular steel baffles of the air pipe, the outer side wall of the steel sleeve is attached to the inner side wall of the abdicating hole, and the fireproof cotton layer is filled between the inner side wall of the steel sleeve and the outer side wall of the air pipe.

According to some embodiments of the utility model, two ends of the steel sleeve extend to the outside of two sides of the firewall and are attached to the end faces of the two annular steel baffles.

According to some embodiments of the utility model, annular steel flanges are arranged on the outer side walls of the two ends of the steel sleeve along the circumferential direction, and the end faces, close to the two annular steel flanges, of the two annular steel flanges are attached to the two side walls of the firewall.

According to some embodiments of the utility model, the steel structure earthquake-resistant induced draft fire protection device further comprises an earthquake-resistant bracket, the earthquake-resistant bracket comprising:

the air pipe is arranged on the mounting frame;

the two vertical hanging rods are arranged at the upper end of the mounting frame side by side and can be adjusted in a telescopic mode along the vertical direction, and the top ends of the vertical hanging rods are mounted on a floor slab of a steel structure building;

two slope jibs rotate install in the upper end of installation frame is located two one side that vertical jib deviates from mutually, the top of slope jib rotates to be installed on steel construction building's floor, two the slope jib extends from supreme orientation slope that deviates from each other down.

According to some embodiments of the utility model, the vertical suspension rod comprises a C-shaped channel vertically arranged at the upper end of the mounting frame and a first lead screw inserted into the C-shaped channel, the top end of the first lead screw is mounted on a floor slab of a steel structure building, and a stiffening bolt for locking the first lead screw is arranged on the C-shaped channel.

According to some embodiments of the utility model, the mounting frame comprises:

the bottom ends of the vertical hanging rod and the inclined hanging rod are connected with the top surface of the upper clamping plate, and two ends of the bottom surface of the upper clamping plate are vertically provided with second screw rods;

the two ends of the lower clamping plate are both vertically provided with mounting holes, the corresponding second screw rods are sleeved through the mounting holes, and the upper part and the lower part of the lower clamping plate of each second screw rod are both in threaded connection with locking nuts;

wherein, the tuber pipe centre gripping is in between the punch holder and the lower plate.

According to some embodiments of the utility model, rubber pads are arranged between the air pipe and the upper clamp plate and between the air pipe and the lower clamp plate.

According to some embodiments of the utility model, the layer of fire-blocking cotton is made of rock wool or glass wool.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a fire wall through which an air duct penetrates;

FIG. 3 is a schematic view of the installation of the air duct;

FIG. 4 is a cross-sectional view of a vertical boom;

reference numerals:

a firewall 100 and a yielding hole 101; an air pipe 200 and a fire damper 201; a layer of fire-resistant cotton 300; an annular steel baffle 400; a steel sleeve 500 and an annular steel flange 501; the anti-seismic support comprises an anti-seismic support 600, a mounting frame 601, a vertical suspension rod 602, an inclined suspension rod 603, a C-shaped channel steel 604, a first screw rod 605, a stiffening bolt 606, an upper clamping plate 607, a second screw rod 608, a lower clamping plate 609, a locking nut 610, a rubber pad 611, a first anti-seismic connecting piece 612, a second anti-seismic connecting piece 613, a bending part 614, a matching block 615 and an arc-shaped pressing piece 616; a floor slab 700; a suspended ceiling 800.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more and "plural groups" means two or more groups unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A steel structure earthquake-resistant induced draft fire protection apparatus according to an embodiment of the present invention will be described with reference to fig. 1 to 4.

According to the embodiment of the utility model, as shown in fig. 1 to 4, the steel structure earthquake-resistant induced air fireproof device comprises:

the firewall 100 is arranged on the steel structure building, and the firewall 100 is provided with a abdicating hole 101;

the air pipe 200 is arranged on the steel structure building and penetrates through the abdicating hole 101;

the fireproof cotton layer 300 is filled between the inner side wall of the abdicating hole 101 and the outer side wall of the air pipe 200;

and the two annular steel baffles 400 are sleeved on the outer side wall of the air pipe 200 in a matching manner and are positioned at two sides of the firewall 100.

In this embodiment, when needing to install tuber pipe 200, set up hole 101 of stepping down on preventing hot wall 100, then hoist tuber pipe 200 in the below of steel construction building's floor 700, and make tuber pipe 200 pass hole 101 of stepping down, later pack the cotton layer 300 of fire prevention between the inside wall of hole 101 of stepping down and the lateral wall of tuber pipe 200, two annular steel baffle 400 are established to the cooperation cover on the lateral wall of tuber pipe 200 at last, and make two annular steel baffle 400 be located prevent that hot wall 100's both sides are outer and be close to the position of preventing hot wall 100 can. According to the steel structure earthquake-resistant induced air fireproof device provided by the embodiment of the utility model, the annular steel baffle 400 is sleeved on the outer side wall of the air pipe 200 and on the two sides of the fireproof wall 100, and the annular steel baffle 400 can reduce the situation that the fireproof cotton layer 300 is separated from the two ends of the gap between the air pipe 200 and the fireproof wall 100, so that the fireproof effect is better.

It should be noted that the fire wall 100 is a main building component for fire-protection zones in a building, the fire wall 100 is composed of incombustible bodies, the fire resistance limit is not less than 3h, and the fire wall 100 can prevent fire from spreading to an adjacent fire-protection zone. The tuber pipe 200 is generally through the gallows hoist and mount in steel construction building's floor 700's below, is provided with fire prevention valve 201 on the tuber pipe 200 generally, and when the flue gas temperature in the tuber pipe 200 reached higher temperature, fire prevention valve 201 can self-closing to avoid the intensity of a fire to stretch. When the below of steel construction building's floor 700 is provided with furred ceiling 800, tuber pipe 200 generally is located between furred ceiling 800 and the floor 700, and furred ceiling 800 can be provided with the access hole. The annular steel baffle 400 is sleeved on the outer side wall of the air pipe 200, that is, the inner side wall of the annular steel baffle 400 is attached to the outer side wall of the air pipe 200, and after the annular steel baffle 400 is sleeved on the outer side walls of the air pipes 200 on the two sides of the firewall 100, the annular steel baffle 400 needs to be fixed with the outer side wall of the air pipe 200 so as to prevent the annular steel baffle 400 from influencing the plugging of the fireproof cotton layer 300 along the axial sliding of the air pipe 200. Annular steel baffle 400 can be connected through the tapping screw with tuber pipe 200, and is concrete, can set up the sleeve pipe in the inner of one side that two annular steel baffle 400 deviate from mutually, and the lateral wall of sheathed tube inside wall laminating tuber pipe 200 is connected the sleeve pipe with tuber pipe 200 through the tapping screw can. Of course, when the side wall of the air duct 200 is thick, the ring-shaped steel baffle 400 may be welded to the outer side wall of the air duct 200. Annular steel baffle 400 is formed for steel preparation, and annular steel baffle 400 self fireproof effect is better.

In some embodiments of the present invention, as shown in fig. 2, the outer diameter dimension of the annular steel baffle 400 is larger than the bore diameter dimension of the relief hole 101. That is along the axial projection of tuber pipe 200, the coincidence can appear between one end that tuber pipe 200 was kept away from to annular steel baffle 400 and the fire wall 100, and then can further reduce the condition that the cotton layer 300 of preventing fires breaks away from the both ends of the gap between tuber pipe 200 and the fire wall 100 to make the fire prevention effect better.

In some embodiments of the present invention, as shown in fig. 2, a steel sleeve 500 is sleeved between the two annular steel baffles 400 of the air duct 200, an outer sidewall of the steel sleeve 500 is attached to an inner sidewall of the abdicating hole 101, and the fireproof cotton layer 300 is filled between the inner sidewall of the steel sleeve 500 and the outer sidewall of the air duct 200. Set up steel casing 500, can keep apart firewall 100 and fireproof cotton layer 300, avoid preventing that firewall 100 from wetting fireproof cotton layer 300 and influencing the quality on fireproof cotton layer 300 by the moisture that produces after weing. In addition, because steel casing 500's lateral wall laminating yielding hole 101's inside wall, and then steel casing 500 can also play the supporting role, reduces and prevents that hot wall 100 from appearing the condition of collapsing in yielding hole 101 department, and the practicality is good. The steel sleeve 500 is made of steel, and the steel sleeve 500 has a good fireproof effect.

In some embodiments of the present invention, as shown in fig. 2, the two ends of the steel sleeve 500 extend out of the two sides of the firewall 100 and abut the adjacent end faces of the two ring-shaped steel baffles 400. And then enclose between steel casing pipe 500, tuber pipe 200 and two annular steel baffle 400 and close and form confined space, the cotton layer 300 of preventing fires is located this confined space to can avoid the cotton layer 300 of preventing fires completely from the condition that breaks away from the both ends in the gap between tuber pipe 200 and the fire wall 100, thereby make the fire prevention effect better.

In some embodiments of the present invention, as shown in fig. 2, the outer side walls of the two ends of the steel sleeve 500 are circumferentially provided with annular steel ribs 501, and the adjacent end surfaces of the two annular steel ribs 501 are attached to the two side walls of the firewall 100. Set up two laminating and prevent annular steel flange 501 of hot wall 100 lateral walls, not only can carry on spacingly to steel sleeve 500, avoid steel sleeve 500 to remove at will along the axial of tuber pipe 200. Moreover, the annular steel retaining edge 501 can reduce the situation that high-temperature flue gas passes through the gap between the outer side wall of the steel sleeve 500 and the inner side wall of the abdicating hole 101, so that the fireproof effect is better.

In some embodiments of the present invention, a fire-proof glue is filled between the outer sidewall of the steel casing 500 and the inner sidewall of the abdicating hole 101. And then can further reduce the condition that the high temperature flue gas passed from the clearance between the lateral wall of steel sleeve 500 and the inside wall of hole 101 of stepping down to make the fire prevention effect better.

In some embodiments of the present invention, as shown in fig. 3, the steel structure earthquake-proof induced draft fire protection device further includes an earthquake-proof support 600, the earthquake-proof support 600 includes a mounting frame 601, two vertical booms 602 and two inclined booms 603, the air duct 200 is mounted on the mounting frame 601, the two vertical booms 602 are disposed side by side at the upper end of the mounting frame 601 and can be telescopically adjusted in the vertical direction, the top ends of the vertical booms 602 are mounted on a floor 700 of the steel structure building, the two inclined booms 603 are rotatably mounted at the upper end of the mounting frame 601 and are located at the side where the two vertical booms 602 are away from each other, the top ends of the inclined booms 603 are rotatably mounted on the floor 700 of the steel structure building, and the two inclined booms 603 extend obliquely from bottom to top toward the direction away from each other. Specifically, the bottom end of the inclined boom 603 is rotatably connected with a first anti-seismic connector 612 and rotatably mounted on the upper end of the mounting frame 601 through the first anti-seismic connector 612, and the top end of the inclined boom 603 is rotatably connected with a second anti-seismic connector 613. During installation tuber pipe 200, pass through connecting pieces such as expansion bolts with the top of two vertical jib 602 and install on steel construction building's floor 700, then adjust vertical jib 602 to stretch out and draw back, make installation frame 601 be located the height that can install tuber pipe 200, later rotate two slope jibs 603, the second that makes two slope jib 603 tops resists earthquake connecting piece 613 can install in steel construction building's floor 700's bottom, and make the incline direction of two slope jibs 603 extend for the orientation slope that deviates from supreme down towards each other, later with tuber pipe 200 install on installation frame 601 can. In this embodiment, tuber pipe 200 hoists the below at steel construction building's floor 700 through two vertical jib 602 and two slope jibs 603, and structural strength is high, and anti-seismic performance is good, long service life. In addition, two vertical jibs 602 can go up and down, and two slope jibs 603 can rotate, and then can be according to the height of the installation of tuber pipe 200 height adjustment installation frame 601, that is to say can install tuber pipe 200 of co-altitude not, and the practicality is good.

In some embodiments of the present invention, as shown in fig. 3 and 4, the vertical suspension rod 602 includes a C-shaped channel 604 vertically disposed at an upper end of the mounting frame 601, and a first lead screw 605 inserted into the C-shaped channel 604, wherein a top end of the first lead screw 605 is mounted on a floor 700 of the steel structure building, and a stiffening bolt 606 for locking the first lead screw 605 is disposed on the C-shaped channel 604. Stiffening bolt 606 is the device that is used for locking the lead screw that is common on antidetonation support 600, it is concrete, can refer to publication number CN203686487U, the chinese patent document of the stiffening device of the main screw rod that hangs of a antidetonation support, the lateral wall of C shape channel-section steel 604 both sides is close to rectangular shape open-ended position and inwards buckles and form bending part 614, install the cooperation piece 615 of butt bending part 614 in the C shape channel-section steel 604, be provided with the screw hole on the cooperation piece 615, stiffening bolt 606 threaded connection is on the screw hole, stiffening bolt 606 is close to the one end rotation of first lead screw 605 and is connected with arc preforming 616, arc preforming 616 deviates from the one end of stiffening bolt 606 and sticiss the lateral wall of first lead screw 605 and make first lead screw 605 hug closely C shape channel-section steel 604, thereby lock first lead screw 605, avoid first lead screw 605 to follow self axial random movement. When the vertical hanging rod 602 needs to be adjusted in a telescopic mode, the stiffening bolt 606 is slightly rotated towards the set direction, the arc-shaped pressing piece 616 is slightly separated from the first lead screw 605, then the C-shaped channel steel 604 moves up and down relative to the first lead screw 605, when the vertical hanging rod 602 stretches to the required length, the stiffening bolt 606 is rotated towards the opposite direction of the set direction, and one end, deviating from the stiffening bolt 606, of the arc-shaped pressing piece 616 is pressed on the outer side wall of the first lead screw 605 again. It should be noted that the vertical suspension rod 602 may also be of other structures, for example, the vertical suspension rod may be a sleeve vertically disposed at the upper end of the mounting frame 601 and an insertion rod slidably inserted into the sleeve, the top end of the insertion rod is mounted on the floor 700 of the steel structure building, a threaded hole is disposed on the insertion rod, a plurality of adjusting holes are disposed on the sleeve along the vertical direction, when the vertical suspension rod 602 needs to be adjusted in a telescopic manner, the threaded hole is aligned with different adjusting holes, and then a bolt is inserted and tightened.

In some embodiments of the present invention, as shown in fig. 3, the mounting frame 601 includes an upper clamping plate 607 and a lower clamping plate 609, which are horizontally disposed, bottom ends of the vertical suspension rod 602 and the inclined suspension rod 603 are both connected to a top surface of the upper clamping plate 607, both ends of a bottom surface of the upper clamping plate 607 are both vertically provided with a second lead screw 608, both ends of the lower clamping plate 609 are both vertically provided with a vertically penetrating mounting hole and are sleeved with the corresponding second lead screw 608 through the mounting hole, the second lead screw 608 is both screwed with a locking nut 610 above and below the lower clamping plate 609, and the air duct 200 is clamped between the upper clamping plate 607 and the lower clamping plate 609. When the air duct 200 needs to be installed, the height of the upper clamping plate 607 is adjusted through the vertical suspension rod 602 and the inclined suspension rod 603, so that the lower end of the upper clamping plate 607 is abutted to the upper end of the air duct 200, then the lower clamping plate 609 is moved upwards, the upper end of the lower clamping plate 609 is abutted to the lower end of the air duct 200, and then the second screw rod 608 is screwed on the locking nut 610 above and below the lower clamping plate 609. In this embodiment, the air duct 200 is clamped by the upper clamp plate 607 and the lower clamp plate 609, so that the air duct 200 is more firmly installed and has better anti-seismic performance. In addition, the lower clamping plate 609 can move up and down relative to the second screw rod 608 to adjust the distance between the upper clamping plate 607 and the lower clamping plate 609, so that air pipes 200 with different sizes can be installed, and the practicability is good. Of course, the mounting frame 601 may have other configurations, such as a rectangular frame, and the mounting frame 601 of the configuration can mount the air duct 200 with a specific size.

In some embodiments of the present invention, as shown in fig. 3, rubber pads 611 are disposed between the air duct 200 and the upper clamp 607 and between the air duct 200 and the lower clamp 609. The rubber pad 611 plays a role in buffering, so that the rigid impact force between the air duct 200 and the upper clamp plate 607 and between the air duct 200 and the lower clamp plate 609 can be reduced, and further the damage to the air duct 200 caused by the overlarge rigid impact force can be avoided, so that the service life of the air duct 200 is longer.

In some embodiments of the present invention, the fire-blocking cotton layer 300 is made of rock wool or glass wool. The rock wool and the glass wool are cheap, have wide sources, good fireproof effect and convenient filling, and are relatively preferable materials for preparing the fireproof cotton layer 300.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. The utility model provides a steel construction antidetonation induced air firebreak device which characterized in that includes:

the firewall (100) is arranged on the steel structure building, and the firewall (100) is provided with a yielding hole (101); the air pipe (200) is mounted on the steel structure building and penetrates through the abdicating hole (101);

the fireproof cotton layer (300) is filled between the inner side wall of the abdicating hole (101) and the outer side wall of the air pipe (200);

and the two annular steel baffles (400) are sleeved on the outer side wall of the air pipe (200) in a matching way and are positioned on two sides of the firewall (100).

2. An earthquake-resistant induced draft fire protection device of a steel structure according to claim 1, wherein the outer diameter of the annular steel baffle (400) is larger than the aperture size of the abdicating hole (101).

3. The steel structure earthquake-resistant induced air fire protection device of claim 2, wherein the air pipe (200) is sleeved with a steel sleeve (500) between the two annular steel baffles (400), the outer side wall of the steel sleeve (500) is attached to the inner side wall of the abdicating hole (101), and the fireproof cotton layer (300) is filled between the inner side wall of the steel sleeve (500) and the outer side wall of the air pipe (200).

4. A steel structure earthquake-proof induced draft fire protection device according to claim 3, wherein both ends of the steel sleeve (500) extend to the outside of both sides of the fire protection wall (100) and are attached to the end faces of the two ring-shaped steel baffles (400) close to each other.

5. A steel structure earthquake-proof induced draft fire protection device according to claim 4, wherein the outer side walls at the two ends of the steel sleeve (500) are circumferentially provided with annular steel flanges (501), and the end surfaces of the two annular steel flanges (501) close to each other are attached to the two side walls of the fire protection wall (100).

6. A steel structure earthquake-proof induced draft fire protection device according to any of claims 1 to 5, further comprising an earthquake-proof bracket (600), said earthquake-proof bracket (600) comprising: the air pipe (200) is arranged on the mounting frame (601);

the two vertical suspenders (602) are arranged at the upper end of the mounting frame (601) side by side and can be adjusted in a telescopic mode along the vertical direction, and the top ends of the vertical suspenders (602) are mounted on a floor slab of a steel structure building;

two slope jib (603), rotate install in the upper end of installation frame (601) is located two one side that vertical jib (602) deviates from mutually, the top of slope jib (603) is rotated and is installed on the floor of steel construction building, two slope jib (603) are followed supreme orientation slope extension towards deviating from each other down.

7. The anti-seismic induced draft fire protection device of the steel structure according to claim 6, wherein the vertical hanger rod (602) comprises a C-shaped channel (604) vertically arranged at the upper end of the mounting frame (601) and a first lead screw (605) inserted into the C-shaped channel (604), the top end of the first lead screw (605) is installed on a floor slab of the steel structure building, and a stiffening bolt (606) for locking the first lead screw (605) is arranged on the C-shaped channel (604).

8. A steel structure earthquake-resistant induced draft fire protection device according to claim 6, wherein said mounting frame (601) comprises:

the bottom ends of the vertical hanging rod (602) and the inclined hanging rod (603) are connected with the top surface of the upper clamping plate (607), and two ends of the bottom surface of the upper clamping plate (607) are vertically provided with second screw rods (608);

the lower clamping plate (609) is horizontally arranged, mounting holes are vertically formed in two ends of the lower clamping plate (609), the corresponding second screw rods (608) are sleeved through the mounting holes, and locking nuts (610) are in threaded connection with the second screw rods (608) above and below the lower clamping plate (609);

wherein the air duct (200) is mounted between the upper clamp plate (607) and the lower clamp plate (609).

9. An earthquake-resistant induced draft fire protection device of steel structure according to claim 8, wherein rubber pads (611) are arranged between said air duct (200) and said upper clamp plate (607) and between said air duct (200) and said lower clamp plate (609).

10. An earthquake-resistant, induced air and fire protection arrangement according to any of claims 1 to 5, characterised in that said layer of fire-resistant cotton (300) is made of rock wool or glass wool.

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