CN214997250U - Quick opening and closing layer door type automatic fireproof plugging device - Google Patents

Abstract

The utility model discloses an automatic fire prevention plugging device of quick switch layer gate-type, including fixing at the peripheral frame of building hole, arrange respectively that both ends just fix at four double-deck U type tracks of group, left fire prevention layer door and the right fire prevention layer door of frame about the building hole, every group double-deck U type track is equipped with one section approach towards the one end of building hole bending respectively, and it is equipped with left fire prevention layer door and right fire prevention layer door to move between two sets of double-deck U type tracks of upper and lower left side and the two sets of double-deck U type tracks of right side, all inlay in left fire prevention layer door, the right fire prevention layer door has double-deck fire prevention closure plate, the upper and lower both ends of left fire prevention layer door and right fire prevention layer door are equipped with convenient pivoted guide pulley respectively. The utility model has the advantages that: the utility model discloses, use fire alarm as starting signal, adopt fire prevention layer door to come shutoff building hole, not only promote safe fire prevention coefficient and efficiency, simple structure moreover, design cost is lower, and the installation is simplified more.

Description

Quick opening and closing layer door type automatic fireproof plugging device

Technical Field

The utility model relates to a fire prevention shutoff application technology field specifically is an automatic fire prevention plugging device of quick switch layer gate-type, belongs to fire prevention plugging device application technology field.

Background

The fireproof plugging device has the function of preventing a fire from spreading to an area adjacent to a fire source, and the purpose of protecting the safety of personnel and equipment is achieved.

The fireproof plugging device is used for more fireproof plugging devices in the current market, although the devices can meet the fireproof requirements, the floor door can be opened and closed quickly, and the current market does not exist.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at just lies in solving foretell problem, and provides an automatic fire prevention plugging device of quick switch layer gate-type, the utility model discloses both practice thrift the cost, reach fire prevention, back-fire relief purpose again, improve safe fire prevention coefficient and efficiency.

The purpose of the utility model can be realized by the following technical scheme: a rapid opening and closing layer door type automatic fireproof blocking device comprises a frame fixed on the periphery of a building hole, four groups of double-layer U-shaped rails, a left fireproof layer door and a right fireproof layer door, wherein the four groups of double-layer U-shaped rails, the left fireproof layer door and the right fireproof layer door are respectively arranged at the upper end and the lower end of the building hole and are fixed on the frame;

wherein, double-deck fire prevention closure plate has all been inlayed in left fire prevention layer door, the upper and lower both ends of right fire prevention layer door and left fire prevention layer door are equipped with the guide pulley that facilitates the rotation respectively, the guide pulley inlays in upper and lower double-deck U type track groove and rolls the arrangement, left fire prevention layer door is equipped with the sealed pad with right fire prevention layer door junction, and the sealed pad of left fire prevention layer door one end and the sealed pad of right fire prevention layer door one end are polyhedron butt joint, arrange the closed loop chain combination of sprocket drive in parallel with upper and lower double-deck U type track, closed loop chain combination hinges in left fire prevention layer door, right fire prevention layer door upper and lower both ends, start the motor under fire alarm controller's control, the output shaft and the driving sprocket of motor are connected, the driving sprocket passes through the coupling joint optical axis, coaxial driving sprocket is connected to the optical axis, drive closed loop chain clockwise rotation under motor drive, the closed loop chain runs synchronously through a second driven chain wheel and a third driven chain wheel, and the layer door connecting pieces hinged on the closed loop chain respectively drive the left fireproof layer door and the right fireproof layer door to move oppositely along the double-layer U-shaped track to drive the left fireproof layer door and the right fireproof layer door to close or open;

two side chains at the upper end and the lower end of a first closed-loop chain, a second closed-loop chain and a third closed-loop chain are respectively and horizontally provided with a layer door connecting piece, the closed-loop chain combination comprises the first closed-loop chain, the second closed-loop chain and the third closed-loop chain, the first closed-loop chain is horizontally arranged on both the upper end and the lower end of the frame, the second closed-loop chain is positioned on one side, close to a right fireproof layer door, below the frame, the third closed-loop chain is arranged on one side, close to the left fireproof layer door, below the frame, a third driving sprocket is arranged at one end, close to the right fireproof layer door, below the frame, a first coupler is arranged above the third driving sprocket, a second driven sprocket is arranged at one end, close to the left fireproof layer door, below the frame, a third expansion mechanism is arranged on one side of the second driven sprocket, a first driven sprocket is arranged at one end, close to the left fireproof layer door, above the frame, and a first motor is arranged at one end, close to the right fireproof layer door, at the bottom of the frame, first motor rotates with the third drive sprocket to be connected, and the frame top is close to the one end of right fire prevention layer door and installs first coaxial drive sprocket, install first optical axis between first coaxial drive sprocket and the first shaft coupling, the one end that second closed loop chain is close to third closed loop chain is installed first tight mechanism and the third driven sprocket of expanding, the one end that third closed loop chain is close to second closed loop chain is installed the second and is expanded tight mechanism and fifth driven sprocket, the coaxial drive sprocket of second is installed to the one end that second closed loop chain was kept away from to third closed loop chain, the second shaft coupling is installed to third closed loop chain one end, the second shaft coupling with install the second optical axis between the coaxial drive sprocket of second, the second motor is installed to the one end below that third closed loop chain is close to the second shaft coupling.

The utility model discloses a further technological improvement lies in: the end parts of the left side and the right side of the frame are respectively provided with a positioning block, and the two positioning blocks are respectively arranged corresponding to two limit displacement points of the left fireproof layer door and the right fireproof layer door.

The utility model discloses a further technological improvement lies in: each group of double-layer U-shaped rails can be provided with a single layer or multiple layers; a single group or a plurality of groups; one or more groups of guide rails are arranged on one section of guide rail which is bent integrally towards one end of the building hole.

The utility model discloses a further technological improvement lies in: and the guide wheels arranged at the upper end and the lower end of the left fireproof layer door and the right fireproof layer door respectively are provided with a plurality of groups.

The utility model discloses a further technological improvement lies in: and a first motor is further installed below one end of the third driving sprocket, and the upper part of the first motor is rotationally connected with the third driving sprocket through an output shaft.

The utility model discloses a further technological improvement lies in: and a fourth driven sprocket is installed at one end, close to the third closed-loop chain, of the second closed-loop chain, a second driving sprocket is rotatably connected above the second motor, and a sixth driven sprocket is installed at one end, close to the second closed-loop chain, of the third closed-loop chain.

The utility model discloses a further technological improvement lies in: the working method of the quick opening and closing layer door type automatic fireproof plugging device specifically comprises the following steps:

the method comprises the following steps: when smoke alarm occurs in a fire disaster, the automatic fire alarm control device automatically or manually starts a first motor, the first motor rotates clockwise, an output shaft of the first motor is connected with a third driving sprocket, the third driving sprocket is connected with a first optical axis through a first coupler, the first optical axis is connected with a first coaxial driving sprocket, a first closed loop chain is driven by the first motor to rotate clockwise, the first closed loop chain synchronously operates through a first driven sprocket and a second driven sprocket, a layer door connecting piece hinged on the first closed loop chain respectively drives a left fire-proof layer door and a right fire-proof layer door to move oppositely along a double-layer U-shaped track, and when the double-layer U-shaped track moves to the position where the double-layer U-shaped track is integrally bent to the building hole, the left fire-proof layer door and the right fire-proof layer door tightly press and close the building hole to the building wall surface;

step two: after the fire alarm is relieved, the first motor is manually started, the first motor rotates anticlockwise, an output shaft of the first motor is connected with the third driving sprocket, the third driving sprocket is connected with the first optical axis through the first coupler, the first optical axis is connected with the first coaxial driving sprocket, the first closed-loop chain is driven to rotate anticlockwise under the driving of the first motor, the first closed-loop chain runs synchronously through the first driven sprocket and the second driven sprocket, the layer door connecting piece hinged to the first closed-loop chain drives the left fireproof layer door respectively, the right fireproof layer door moves reversely to separate from the wall surface of the building hole along the guide rail, and the building hole is opened when the two sides of the building hole move to the limit positioning block position of the right fireproof layer door of the left fireproof layer door along the double-layer U-shaped rail.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses, use fire alarm as starting signal, adopt fire prevention layer door to come shutoff building hole, not only promote safe fire prevention coefficient and efficiency, simple structure moreover, design cost is lower, and the installation is simplified more.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a front view of a closed state of a first embodiment of the present invention.

FIG. 2 is a right side view of the closed position of the first embodiment of the present invention shown in FIG. 1;

FIG. 3 is a top plan view of the first embodiment of the present invention shown in FIG. 1 in a closed position;

FIG. 4 is a front view of the open position of the first embodiment of the present invention shown in FIG. 1;

fig. 5 is a top view of the open position of the first embodiment of the present invention shown in fig. 4;

fig. 6 is a front view of a closed state of the second embodiment of the present invention.

Fig. 7 is a plan view of a closed state of the second embodiment of the present invention shown in fig. 6.

Fig. 8 is a front view of the second embodiment of the present invention in fig. 6.

FIG. 9 is a plan view of the second embodiment of the present invention in FIG. 8 in an open state

Fig. 10 is a top view of the closed fireproof landing door of the present invention.

In the figure: 1. a frame; 2. a third drive sprocket; 3. a first coupling; 4. a second coupling; 5. a first driven sprocket; 6. a second driven sprocket; 7. a third expansion mechanism; 8. a first coaxial drive sprocket; 9. A first optical axis; 10. a left fire barrier door; 11. a right fire barrier door; 12. a first closed loop chain; 13. a landing door connector; 14. a guide wheel; 15. a gasket; 16. a double-layer U-shaped track; 17. positioning blocks; 18. a second coaxial drive sprocket; 19. a second closed loop chain; 20. a third closed loop chain; 21. a first expansion mechanism; 22. Guiding rails; 23. a second motor; 24. a double-layer fireproof plugging plate; 25. a third driven sprocket; 26. a fourth driven sprocket; 27. a second expansion mechanism; 28. a second drive sprocket; 29. a first motor; 30. a second optical axis; 31. a fifth driven sprocket; 32. a sixth driven sprocket; 33. and (5) building holes.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left" and "right" are used,

The terms "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in reference to the orientation or positional relationship shown in the drawings and are used merely to facilitate the description of the invention and to simplify the description, but 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 thus should not be construed as limiting the invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in interactive relation with one another. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It should be noted that, in the description of the present invention, the terms "first" and "second" are only used for convenience in describing different components, and are not to be construed as indicating or implying a sequential relationship, relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Example one

Referring to fig. 1-5, a quick-opening and closing landing door type automatic fire-proof blocking device comprises a frame 1 fixed on the periphery of a building hole 33, four groups of double-layer U-shaped rails 16, a left fire-proof landing door 10 and a right fire-proof landing door 11 which are respectively arranged at the upper end and the lower end of the building hole 33 and fixed on the frame 1, wherein one end of each group of double-layer U-shaped rails 16 facing to the building hole 33 is respectively and integrally bent to be provided with a section of guide rail 22, and the left fire-proof landing door 10 and the right fire-proof landing door 11 are movably arranged between the upper group of double-layer U-shaped rails 16 at the left side and the lower group of double-layer U-shaped rails 16 at the right side;

wherein, double-layer fireproof plugging plates 24 are respectively embedded in the left fireproof layer door 10 and the right fireproof layer door 11, guide wheels 14 which are convenient to rotate are respectively arranged at the upper end and the lower end of the left fireproof layer door 10 and the right fireproof layer door 11, the guide wheels 14 are embedded in grooves of an upper double-layer U-shaped track 16 and are arranged in a rolling manner, a sealing gasket 15 is arranged at the joint of the left fireproof layer door 10 and the right fireproof layer door 11, the sealing gasket 15 at one end of the left fireproof layer door 10 is in polyhedral butt joint with the sealing gasket 15 at one end of the right fireproof layer door 11, a closed-loop chain combination driven by a chain wheel is arranged in parallel with the upper double-layer U-shaped track 16 and the lower double-layer U-shaped track 16, the closed-loop chain combination is hinged at the upper end and the lower end of the left fireproof layer door 10 and the right fireproof layer door 11, a first motor 29 is started under the control of a fire alarm controller, an output shaft of the first motor 29 is connected with a third driving chain wheel 2, the third driving chain wheel 2 is connected with a first optical shaft coupling 3, the first optical axis 9 is connected with a first coaxial driving sprocket 8, a first closed loop chain 12 is driven by a first motor 29 to rotate clockwise, the first closed loop chain 12 runs synchronously through a first driven sprocket 5 and a second driven sprocket 6, a landing door connecting piece 13 hinged on the first closed loop chain 12 respectively drives a left fireproof landing door 10 and a right fireproof landing door 11 to move oppositely along a double-layer U-shaped track 16, and when the left fireproof landing door 10 and the right fireproof landing door 11 move to the position where the double-layer U-shaped track 16 faces an integral bending guide rail 22 of a building hole 33, the left fireproof landing door 10 and the right fireproof landing door 11 tightly press the wall surface of the building hole 33 to close the building hole 33;

the end parts of the left side and the right side of the frame 1 are respectively provided with a positioning block 17, and the two positioning blocks 17 are respectively arranged corresponding to two limit displacement points of the left fireproof layer door 10 and the right fireproof layer door 11.

Each group of double-layer U-shaped tracks 16 can be provided with a single layer or multiple layers; one or more sets of guide rails 22 are respectively and integrally bent at one end of the single-layer or multi-layer U-shaped track (16) facing the building hole 33.

The guide wheels 14 respectively arranged at the upper end and the lower end of the left fireproof layer door 10 and the right fireproof layer door 11 are provided with a plurality of groups.

The working method of the quick opening and closing layer door type automatic fireproof plugging device specifically comprises the following steps:

the method comprises the following steps: when smoke alarm occurs in fire, the automatic fire alarm control device automatically or manually starts the first motor 29, the first motor 29 rotates clockwise, the output shaft of the first motor 29 is connected with the third driving sprocket 2, the third driving sprocket 2 is connected with the first optical axis 9 through the first coupling 3, the first optical axis 9 is connected with the first coaxial driving sprocket 8, the first closed loop chain 12 is driven by the first motor 29 to rotate clockwise, the first closed loop chain 12 runs synchronously through the first driven chain wheel 5 and the second driven chain wheel 6, the landing door connecting piece 13 hinged on the first closed loop chain 12 respectively drives the left fireproof landing door 10 and the right fireproof landing door 11 to move oppositely along the double-layer U-shaped track 16, when the double-layer U-shaped rail 16 is moved to the position where the guide rail 22 is integrally bent and faces the building hole 33, the left fireproof landing door 10 and the right fireproof landing door 11 tightly press the wall surface of the building hole 33 to close the building hole 33;

step two: after the fire alarm is relieved, the first motor 29 is manually started, the first motor 29 rotates anticlockwise, an output shaft of the first motor 29 is connected with the third driving sprocket 2, the third driving sprocket 2 is connected with the first optical axis 9 through the first coupler 3, the first optical axis 9 is connected with the first coaxial driving sprocket 8, the first closed-loop chain 12 is driven by the first motor 29 to rotate anticlockwise, the first closed-loop chain 12 synchronously operates through the first driven sprocket 5 and the second driven sprocket 6, the landing door connecting piece 13 hinged to the first closed-loop chain 12 respectively drives the left fireproof landing door 10 and the right fireproof landing door 11 to move reversely to move along the guide rail 22 to be separated from the wall surface of the building hole 33, and the building hole 33 is opened when the building hole 33 moves to the two sides of the building hole 33 to the limit positioning blocks 17 of the left fireproof landing door 10 and the right fireproof landing door 11 along the double-layer U-shaped rail 16.

Example two

Referring to fig. 6-10, a quick-opening and closing landing door type automatic fire-proof blocking device includes a frame 1 fixed around a building hole 33, four sets of double-layer U-shaped rails 16 respectively arranged at the upper and lower ends of the building hole 33 and fixed to the frame 1, a left fire-proof landing door 10 and a right fire-proof landing door 11, wherein one end of each set of double-layer U-shaped rail 16 facing the building hole 33 is respectively and integrally bent to be provided with a section of guide rail 22, and the left fire-proof landing door 10 and the right fire-proof landing door 11 are movably arranged between the upper and lower left sets of double-layer U-shaped rails 16 and the right two sets of double-layer U-shaped rails 16;

wherein, double-deck fire prevention closure plate 24 is inlayed in left fire prevention layer door 10, right fire prevention layer door 11, the upper and lower both ends of left fire prevention layer door 10 and right fire prevention layer door 11 are equipped with guide pulley 14 convenient to rotate respectively, guide pulley 14 is inlayed in upper and lower double-deck U type track 16 groove and is rolled and arranged, left fire prevention layer door 10 and right fire prevention layer door 11 junction is equipped with the sealing gasket 15, and the sealing gasket 15 of one end of left fire prevention layer door 10 and the sealing gasket 15 of one end of right fire prevention layer door 11 are polyhedron butt joint; the two-side chains at the upper and lower ends of the second closed-loop chain 19 and the third closed-loop chain 20 are respectively horizontally provided with a landing door connecting piece 13, chain wheel-driven closed-loop chain combinations are arranged in parallel with the upper and lower double-layer U-shaped rails 16, the closed-loop chain combinations are hinged to the landing door connecting pieces 13 at the upper and lower ends of the left fireproof landing door 10 and the right fireproof landing door 11, each closed-loop chain combination comprises the second closed-loop chain 19 and the third closed-loop chain 20, the second closed-loop chain 19 is horizontally arranged at the upper and lower ends of the frame 1 and is positioned at one side, close to the right fireproof landing door 11, below the frame 1, the third closed-loop chain 20 is arranged at one side, close to the left fireproof landing door 10, below the frame 1, one end, close to the left fireproof landing door 10, below the frame 1 is provided with a second driving chain wheel 28, a second coupling 4 is arranged above the second driving chain wheel 28, and one end, close to the left fireproof landing door 10, below the frame 1 is provided with a fifth driven chain wheel 31, a second expansion mechanism 27 is installed on one side of a fifth driven sprocket 31, a third driven sprocket 25 is installed on one end, close to the right fireproof layer door 11, above the frame 1, a first motor 29 is installed on one end, close to the right fireproof layer door 11, of the bottom of the frame 1, the first motor 29 is rotatably connected with a third driving sprocket 2, a first coaxial driving sprocket 8 is installed on one end, close to the right fireproof layer door 11, above the frame 1, a first optical axis 9 is installed between the first coaxial driving sprocket 8 and the first coupler 3, a first expansion mechanism 21 and a third driven sprocket 25 are installed on one end, close to the third closed-loop chain 20, of the second closed-loop chain 20, a second expansion mechanism 27 and a fifth driven sprocket 31 are installed on one end, close to the second closed-loop chain 19, of the third closed-loop chain 20, a second coaxial driving sprocket 18 is installed on one end, far from the second closed-loop chain 19, a second coupling 4 is installed at one end of the third closed-loop chain 20, a second optical axis 30 is installed between the second coupling 4 and the second coaxial driving sprocket 18, and a second motor 23 is installed below one end of the third closed-loop chain 20 close to the second coupling 4.

A first motor 29 is further installed below one end of the third driving chain wheel 2, and the upper portion of the first motor 29 is rotatably connected with the third driving chain wheel 2 through an output shaft.

A fourth driven sprocket 26 is installed at one end of the second closed-loop chain 19 close to the third closed-loop chain 20, a second driving sprocket 28 is rotatably connected above the second motor 23, and a sixth driven sprocket 32 is installed at one end of the third closed-loop chain 20 close to the second closed-loop chain 19.

The utility model discloses the second embodiment adopts the theory of use and the working process of two motor drive modes as follows:

when smoke alarm occurs in a fire disaster, the automatic fire alarm control device automatically or manually starts the first motor 29 to rotate the second motor 23 anticlockwise and rotate clockwise, the output shaft of the motor 29 is connected with the third driving sprocket 2, the third driving sprocket 2 is connected with the first optical axis 9 through the first coupler 3, the first optical axis 9 is connected with the first coaxial driving sprocket 8, the second closed-loop chain 19 is driven by the first motor 29 to rotate anticlockwise, the second closed-loop chain 19 runs synchronously through the third driven sprocket 25 and the fourth driven sprocket 26, the layer door connecting piece 13 hinged on the second closed-loop chain 19 drives the right fireproof layer door 11 and the left fireproof layer door 10 to move oppositely along the double-layer U-shaped track 16, the second motor 23 rotates clockwise, the output shaft of the second motor 23 is connected with the second driving sprocket 28, the second driving sprocket 28 is connected with the second optical axis 30 through the second coupler 4, the second optical axis 30 is connected with the second coaxial driving sprocket 18, the third closed-loop chain 20 is driven by the second motor 23 to rotate clockwise, the third closed-loop chain 20 runs synchronously through the fifth driven sprocket 31 and the sixth driven sprocket 32, the landing door connecting piece 13 hinged on the third closed-loop chain 20 drives the left fireproof landing door 10 and the right fireproof landing door 11 to move oppositely along the double-layer U-shaped track 16, when the left fireproof landing door 10 and the right fireproof landing door 11 simultaneously move to the position where the double-layer U-shaped track 16 faces the building hole 33 integrated bending guide rail 22, the left fireproof landing door 10 and the right fireproof landing door 11 compress and close the building hole 33 towards the wall surface of the building hole 33.

In the same way, after the fire alarm is relieved, the first motor 29 is manually started to rotate the second motor 23 clockwise and rotate anticlockwise, the output shaft of the first motor 29 is connected with the third driving sprocket 2, the third driving sprocket 2 is connected with the first optical axis 9 through the first coupler 3, the first optical axis 9 is connected with the first coaxial driving sprocket 8, the second closed-loop chain 19 is driven by the first motor 29 to rotate clockwise, the second closed-loop chain 19 runs synchronously through the third driven sprocket 25 and the fourth driven sprocket 26, the layer door connecting piece 13 hinged on the second closed-loop chain 19 drives the right fireproof layer door 11 and the left fireproof layer door 10 to move along the double-layer U-shaped track 16 in a reverse motion manner, meanwhile, the second motor 23 rotates anticlockwise, the output shaft of the second motor 23 is connected with the second driving sprocket 28, the second driving sprocket 28 is connected with the second optical axis 30 through the second coupler 4, and the second optical axis 30 is connected with the second coaxial driving sprocket 18, the third closed-loop chain 20 is driven by the second motor 23 to rotate anticlockwise, the third closed-loop chain 20 runs synchronously through a fifth driven chain wheel 31 and a sixth driven chain wheel 32, the landing door connecting piece 13 hinged on the third closed-loop chain 20 drives the left fireproof landing door 10 and the right fireproof landing door 11 to move in opposite directions to move along the double-layer U-shaped track 16 to separate from the guide rail 22, and when the left fireproof landing door 10 and the right fireproof landing door 11 move to the position of the limit positioning block 17 of the left fireproof landing door 10 and the right fireproof landing door 11 simultaneously, the building hole 33 is opened.

A first motor 29 and a second motor 23, the first motor 29 rotates clockwise, an output shaft of the first motor 29 is connected with a third driving sprocket 2, the third driving sprocket 2 is connected with a first optical axis 9 through a first coupler 3, the first optical axis 9 is connected with a first coaxial driving sprocket 8, the second closed loop chain 19 is driven by the first motor 29 to rotate clockwise, the second closed loop chain 19 operates synchronously through a fourth driven sprocket 26 of a third driven sprocket 25, a layer door connecting piece 13 hinged on the second closed loop chain 19 drives a right fireproof layer door 11 and a left fireproof layer door 10 to move along a guide rail 22 in a reverse motion manner, meanwhile, the second motor 23 rotates counterclockwise, an output shaft of the second motor 23 is connected with a second driving sprocket 28, the second driving sprocket 28 is connected with a second optical axis 30 through a second coupler 4, the second optical axis 30 is connected with a fifth driven sprocket 31 and a sixth driven sprocket 32, the third closed-loop chain 20 is driven by the second motor 23 to rotate anticlockwise, the third closed-loop chain 20 runs synchronously through a fifth driven chain wheel 31 and a sixth driven chain wheel 32, the landing door connecting piece 13 hinged on the third closed-loop chain 20 drives the left fireproof landing door 10 and the right fireproof landing door 11 to move in opposite directions along the guide rail 22 to be separated from the wall surface of the building hole 33, and when the left fireproof landing door 10 and the right fireproof landing door 11 move to the limit positioning block 17 of the left fireproof landing door 10 and the right fireproof landing door 11 along the double-layer U-shaped rail 16, the building hole 33 is opened.

The utility model discloses in, one-way or two-way multiunit butt joint is closed or is opened a plurality of building holes to left fire prevention layer door, right fire prevention layer door and relevant accessory can be designed into, and each mounted position can design according to actual need to reach the purpose of a plurality of building holes of shutoff.

The utility model discloses still can be applicable to commodity circulation transmission system hole, track commodity circulation transmission system hole, electric power industry and tunnel, fire prevention partition etc. especially, it is huge to various building hole system effects.

The utility model discloses, use fire alarm as starting signal, adopt fire prevention layer door to come shutoff building hole, not only promote safe fire prevention coefficient and efficiency, simple structure moreover, design cost is lower, and the maintenance is simplified more.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (6)

1. The utility model provides an automatic fire prevention plugging device of quick switch layer door formula, includes fixes frame (1) at building hole (33) periphery, arranges respectively that both ends just fix in four double-deck U type tracks (16) of group, left fire prevention layer door (10) and right fire prevention layer door (11) of frame (1) about building hole (33), its characterized in that: one end of each group of double-layer U-shaped tracks (16) facing the building hole (33) is respectively provided with a section of guide rail (22) in an integrally bent mode, and a left fireproof landing door (10) and a right fireproof landing door (11) are movably arranged between the two groups of double-layer U-shaped tracks (16) on the upper side, the lower side and the left side and the two groups of double-layer U-shaped tracks (16) on the right side;

the fireproof door comprises a left fireproof layer door (10) and a right fireproof layer door (11), wherein double-layer fireproof plugging plates (24) are embedded in the left fireproof layer door (10) and the right fireproof layer door (11), guide wheels (14) convenient to rotate are arranged at the upper end and the lower end of the left fireproof layer door (10) and the upper end and the lower end of the right fireproof layer door (11) respectively, the guide wheels (14) are embedded in grooves of upper and lower double-layer U-shaped rails (16) and are arranged in a rolling mode, a sealing gasket (15) is arranged at the joint of the left fireproof layer door (10) and the right fireproof layer door (11), the sealing gasket (15) at one end of the left fireproof layer door (10) and the sealing gasket (15) at one end of the right fireproof layer door (11) are in polyhedral butt joint, a closed-loop chain combination driven by a chain wheel is arranged in parallel to the upper and lower double-layer U-shaped rails (16), and the closed loop chain combination is hinged to the upper end and the lower end of the left fireproof layer door (10) and the right fireproof layer door (11);

the two-side chains at the upper and lower ends of the first closed-loop chain (12), the second closed-loop chain (19) and the third closed-loop chain (20) are respectively and horizontally provided with a layer door connecting piece (13), the closed-loop chain combination comprises the first closed-loop chain (12), the second closed-loop chain (19) and the third closed-loop chain (20), the first closed-loop chain (12) is horizontally arranged at the upper and lower ends of the frame (1), the second closed-loop chain (19) is positioned at one side, close to the right fireproof layer door (11), below the frame (1), the third closed-loop chain (20) is arranged at one side, close to the left fireproof layer door (10), below the frame (1), the third driving chain wheel (2) is arranged at one end, close to the right fireproof layer door (11), below the frame (1), the first coupler (3) is arranged above the third driving chain wheel (2), and the second driven chain wheel (6) is arranged at one end, close to the left fireproof layer door (10), below the frame (1), a third expansion mechanism (7) is installed on one side of the second driven chain wheel (6), a first driven chain wheel (5) is installed at one end, close to the left fireproof layer door (10), of the upper portion of the frame (1), a first motor (29) is installed at one end, close to the right fireproof layer door (11), of the bottom of the frame (1), the first motor (29) is rotatably connected with a third driving chain wheel (2), a first coaxial driving chain wheel (8) is installed at one end, close to the right fireproof layer door (11), of the upper portion of the frame (1), a first optical axis (9) is installed between the first coaxial driving chain wheel (8) and the first coupler (3), a first expansion mechanism (21) and a third driven chain wheel (25) are installed at one end, close to the third closed-loop chain (20), of the third closed-loop chain (20) is installed at one end, close to the second closed-loop chain (19), and a second expansion mechanism (27) and a fifth driven chain wheel (31) are installed, the coaxial driving sprocket of second (18) is installed to the one end that second closed loop chain (19) was kept away from in third closed loop chain (20), second shaft coupling (4) are installed to third closed loop chain (20) one end, second shaft coupling (4) with install second optical axis (30) between the coaxial driving sprocket of second (18), second motor (23) are installed to the one end below that third closed loop chain (20) are close to second shaft coupling (4).

2. The automatic fire-proof blocking device of a quick-opening and closing landing door type as claimed in claim 1, wherein the end parts of the left and right sides of the frame (1) are provided with positioning blocks (17), and the two positioning blocks (17) are respectively arranged corresponding to the two limit displacement points of the left fire-proof landing door (10) and the right fire-proof landing door (11).

3. The automatic fire-proof sealing device of quick opening and closing layer door type according to claim 2, characterized in that each group of double-layer U-shaped rails (16) can be provided with single layer or multiple layers; one or more groups of guide rails (22) are respectively and integrally bent at one end of the double-layer U-shaped track (16) facing the building hole (33).

4. The automatic fireproof sealing device of claim 3, wherein the left fireproof landing door (10) and the right fireproof landing door (11) have a plurality of sets of guide wheels (14) respectively disposed at the upper and lower ends.

5. The automatic fire-proof blocking device of a fast opening and closing layer door type as claimed in claim 1, wherein a first motor (29) is further installed below one end of the third driving sprocket (2), and the upper part of the first motor (29) is rotatably connected with the third driving sprocket (2) through an output shaft.

6. The automatic fire-proof blocking device of a quick-opening and closing layer door type is characterized in that a fourth driven sprocket (26) is installed at one end, close to a third closed-loop chain (20), of the second closed-loop chain (19), a second driving sprocket (28) is rotatably connected above the second motor (23), and a sixth driven sprocket (32) is installed at one end, close to the second closed-loop chain (19), of the third closed-loop chain (20).

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