CN112160665A - Opening and closing structure of fireproof door in staircase - Google Patents

Opening and closing structure of fireproof door in staircase Download PDF

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Publication number
CN112160665A
CN112160665A CN202011034131.3A CN202011034131A CN112160665A CN 112160665 A CN112160665 A CN 112160665A CN 202011034131 A CN202011034131 A CN 202011034131A CN 112160665 A CN112160665 A CN 112160665A
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CN
China
Prior art keywords
fixedly connected
door body
door
fire
pulley
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202011034131.3A
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Chinese (zh)
Inventor
金梓拓
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202011034131.3A priority Critical patent/CN112160665A/en
Publication of CN112160665A publication Critical patent/CN112160665A/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
    • E05F11/02—Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights
    • E05F11/04—Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights with cords, chains or cables
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
    • E05F11/54—Man-operated mechanisms for operating wings, including those which also operate the fastening for doors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
    • E05F5/08—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops with springs
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
    • E06B3/34—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement
    • E06B3/36—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement with a single vertical axis of rotation at one side of the opening, or swinging through the opening
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
    • E06B3/34—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement
    • E06B3/38—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement with a horizontal axis of rotation at the top or bottom of the opening
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/70—Door leaves
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/132—Doors
    • E05Y2900/134—Fire doors
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/70—Door leaves
    • E06B3/7015—Door leaves characterised by the filling between two external panels
    • E06B2003/7042—Door leaves characterised by the filling between two external panels with a fire retardant layer

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Special Wing (AREA)

Abstract

The invention discloses an opening and closing structure of a fireproof door in a staircase, which relates to the technical field of fireproof doors, and particularly relates to an opening and closing structure of a fireproof door in a staircase. Through setting up the cable wire, because the cable wire is connected in the one end that the PLASTIC LAMINATED was kept away from to the hinge, at the in-process that utilizes the cable wire upwards to stimulate the hinge, the arm of force that the cable wire was used in on the hinge is bigger, so the cable wire drives the hinge and rotates the power that consumes and will be much less for the one end that is close to the PLASTIC LAMINATED, uses more laborsaving.

Description

Opening and closing structure of fireproof door in staircase
Technical Field
The invention relates to the technical field of fireproof doors, in particular to an opening and closing structure of a fireproof door in a staircase.
Background
A fire door is a door that can meet the requirements of fire stability, integrity and thermal insulation within a certain period of time. The fireproof partition is arranged in fireproof partitions, evacuation staircases, vertical shafts and the like and has certain fire resistance, and the fireproof door has the functions of preventing fire from spreading and smoke from diffusing besides the function of a common door, can prevent the fire from spreading within a certain time and ensures personnel evacuation.
Chinese patent literature discloses a structure (201811108879.6) is opened and close to fire door is prevented to stairwell, including the door frame, the door body and fire prevention closing plate, fire prevention closing plate is in the same place through dismantling hinge structure AND gate body coupling, fire prevention closing plate is provided with the top pressure seat with the articulated department of the door body, the left side of door frame is provided with the top briquetting, thereby it drives fire prevention closing plate and removes towards door body one side round the swing of top pressure block through the top pressure seat, but the top pressure seat is close to articulated position, so the arm of force very short of top pressure seat and articulated department, need overcome very big power at the pivoted in-process and just can open fire prevention closing plate, the opening and close of inconvenient fire door prevents fire door, for this.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a staircase fireproof door opening and closing structure, which solves the problems in the background technology.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a structure is opened and close to fire door is prevented to staircase, includes the door frame, the inside of door frame articulates there is the door body, the bottom of door frame is provided with the step, the bottom of the door body articulates there is the PLASTIC LAMINATED, be provided with the hinge between the door body and the PLASTIC LAMINATED, the top fixedly connected with fixing base of PLASTIC LAMINATED, be provided with the pulling mechanism who drives the PLASTIC LAMINATED motion on the fixing base.
The pulling mechanism includes the top fixed connection's of fixing base cable wire, the top fixedly connected with movable pulley of cable wire, the outside winding of movable pulley has first haulage rope, the right-hand member fixedly connected with slide bar of first haulage rope, the bottom fixedly connected with second haulage rope of slide bar, the second haulage rope, the bottom fixedly connected with fag end of second haulage rope, the fixed axis of rotation that has cup jointed in inside of fag end, the left end regulation of axis of rotation has cup jointed drive gear, drive gear's bottom meshing has drive gear, the fixed actuating lever that has cup jointed in drive gear's inside, the both ends fixedly connected with drive wheel of actuating lever, the bottom fixedly connected with bumper shock absorber of PLASTIC LAMINATED.
Optionally, the number of the steel cables is two, the two steel cables are symmetrically distributed on two sides of the fixing seat, a through hole is formed in the front face of the door body, and the steel cables enter the door body through the through hole.
Optionally, the inside fixedly connected with fixed pulley of the door body, the bottom and the one end fixed connection of first haulage rope of fixed pulley, first haulage rope passes from the top of fixed pulley after encircling the movable pulley a circle.
Optionally, the inside fixedly connected with of the door body supports the pulley, support the pulley and be located the right side of fixed pulley, the right side of supporting the pulley is located the top of slide bar, first haulage rope passes from the top of supporting the pulley.
Optionally, the two ends of the sliding rod are fixedly connected with sliding blocks, the sliding grooves are clamped on the right sides of the sliding blocks, the sliding grooves are fixedly installed in the door body, and the sliding grooves are symmetrically distributed on the two sides of the sliding rod.
Optionally, the driving rod is movably sleeved inside the door body, the driving wheels are symmetrically distributed at two ends of the driving rod, and the bottom of the driving wheel protrudes out of the bottom of the door body and contacts with the ground.
Optionally, the inside of PLASTIC LAMINATED is including the fire prevention bottom plate, the fire prevention bottom plate is located the bottommost surface of PLASTIC LAMINATED, the top of fire prevention bottom plate is provided with first insulating layer, the top of first insulating layer is provided with the reinforcement, the reinforcement is the W shape, the top of reinforcement is provided with the second insulating layer, the top of second insulating layer is provided with the fire prevention roof.
Optionally, a damping spring is arranged inside the shock absorber, a damping block is fixedly connected to the bottom of the damping spring, the damping block is movably sleeved at the bottom of the shock absorber, and a cushion pad is fixedly connected to the bottom of the damping block.
Optionally, a slot is formed in the door body, a rotating handle is movably sleeved in the fireproof plate, and an inserting rod is fixedly connected to the top of the rotating handle.
The invention provides a staircase fireproof door opening and closing structure, which has the following beneficial effects:
1. this fire door opening and closing structure is prevented to staircase, through setting up the cable wire, because the one end of PLASTIC LAMINATED is kept away from at the hinge to the cable wire connection, at the in-process that utilizes the cable wire to upwards stimulate the hinge, the arm of force that the cable wire was used in the hinge is bigger, so the cable wire drives the hinge and rotates the power that consumes and will be much littleer for the one end that is close to the PLASTIC LAMINATED, it is more laborsaving to use, cooperation through fixed pulley and movable pulley is used, the laborsaving assembly pulley is constituteed jointly to fixed pulley and movable pulley, can know through the atress analysis, the pulling force of first haulage rope right-hand member only is half of pulling force on the cable wire, further allevia.
2. The structure for opening and closing the staircase fire door is characterized in that the first heat insulation layer and the second heat insulation layer are arranged in the fireproof plate, heat is isolated by the first heat insulation layer and the second heat insulation layer, heat is prevented from being transmitted through the fireproof plate, a good heat insulation and fire prevention effect is achieved, meanwhile, the strength of the fireproof plate can be increased by the reinforcing piece inside the fireproof plate, the fireproof plate is prevented from being burnt out by high-temperature flame, the shock absorber is arranged at the bottom of the fireproof plate, the shock absorption block can be compressed into the shock absorber in the process of putting down the fireproof plate, the generated impact force is buffered by the shock absorption spring, the fireproof plate is prevented from directly colliding with the ground, meanwhile, the buffer cushion at the bottom of the shock absorption block can protect the ground, the ground is prevented from being damaged, the slot formed in the door body is limited by utilizing the rotary handle and the inserted rod, and the fireproof plate and the door body are combined with, can be better attached.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic cross-sectional view of the back side of the present invention;
FIG. 3 is a schematic side view of the present invention;
FIG. 4 is a schematic structural view of the fire retardant panel of the present invention;
FIG. 5 is a schematic view of the structure of the shock absorber of the present invention.
In the figure: 1. a door frame; 2. a door body; 3. a step; 4. a fire-proof plate; 41. a fire-resistant floor; 42. a first insulating layer; 43. a reinforcement; 44. a second thermal insulation layer; 45. a fire roof; 5. a hinge; 6. a fixed seat; 7. a steel cord; 8. a through hole; 9. a movable pulley; 10. a first pull cord; 11. a fixed pulley; 12. a support pulley; 13. a slide bar; 14. a slider; 15. a chute; 16. a second pull cord; 17. a rope reel; 18. a rotating shaft; 19. a transmission gear; 20. a drive gear; 21. a drive rod; 22. a drive wheel; 23. a shock absorber; 24. a damping spring; 25. a damper block; 26. a cushion pad; 27. a slot; 28. rotating the handle; 29. and (4) inserting the rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 5, the present invention provides a technical solution: a fire door opening and closing structure of a staircase comprises a door frame 1, a door body 2 is hinged inside the door frame 1, a step 3 is arranged at the bottom of the door frame 1, a fire-proof plate 4 is hinged at the bottom of the door body 2, a fire-proof bottom plate 41 is arranged inside the fire-proof plate 4, the fire-proof bottom plate 41 is positioned at the bottommost surface of the fire-proof plate 4, a first heat-insulating layer 42 is arranged at the top of the fire-proof bottom plate 41, a reinforcing piece 43 is arranged at the top of the first heat-insulating layer 42, the reinforcing piece 43 is W-shaped, a second heat-insulating layer 44 is arranged at the top of the reinforcing piece 43, a fire-proof top plate 45 is arranged at the top of the second heat-insulating layer 44, the first heat-insulating layer 42 and the second heat-insulating layer 44 are used for isolating heat, the heat is prevented from being transmitted through the fire-proof plate 4, a good heat-insulating and fire, avoid PLASTIC LAMINATED 4 to be burnt out by high temperature flame, be provided with hinge 5 between door body 2 and the PLASTIC LAMINATED 4, the top fixedly connected with fixing base 6 of PLASTIC LAMINATED 4. The fixed seat 6 is provided with a pulling mechanism for pulling the fireproof plate 4.
The pulling mechanism comprises steel cables 7 fixedly connected with the top of a fixed seat 6, the number of the steel cables 7 is two, the two steel cables 7 are symmetrically distributed on two sides of the fixed seat 6, the steel cables 7 are arranged, the steel cables 7 are connected with one end, far away from the fireproof plate 4, of the hinge 5, in the process of utilizing the steel cables 7 to pull the hinge 5 upwards, the force arm of the steel cables 7 acting on the hinge 5 is larger, the force consumed by the steel cables 7 to drive the hinge 5 to rotate is much smaller than that of one end close to the fireproof plate 4, the use is more labor-saving, through holes 8 are formed in the front of the door body 2, the steel cables 7 enter the interior of the door body 2 through the through holes 8, a movable pulley 9 is fixedly connected with the top end of each steel cable 7, a first traction rope 10 is wound on the outer portion of each movable pulley 9, a fixed pulley 11 is fixedly connected with the interior of the door body 2, the bottom of the fixed pulley 11 is fixedly connected, through the cooperation use of the fixed pulley 11 and the movable pulley 9, the fixed pulley 11 and the movable pulley 9 jointly form a labor-saving pulley block, and through stress analysis, the tension at the right end of the first traction rope 10 is only half of the tension on the steel cable 7, further the tension required for pulling the hinge 5 is reduced, the hinge 5 is convenient to rapidly open and close, the door body 2 is fixedly connected with the supporting pulley 12, the supporting pulley 12 is positioned at the right side of the fixed pulley 11, the right side of the supporting pulley 12 is positioned at the top of the sliding rod 13, the first traction rope 10 penetrates through the top of the supporting pulley 12, the right end of the first traction rope 10 is fixedly connected with the sliding rod 13, the two ends of the sliding rod 13 are fixedly connected with the sliding blocks 14, the right side of the sliding block 14 is clamped with the sliding grooves 15, the sliding grooves 15 are fixedly arranged in the door body 2, the sliding grooves 15 are symmetrically distributed at two sides, utilize the straight lapse of slide bar 13 along spout 15, conveniently drive two first haulage ropes 10 to move down together simultaneously, guarantee the first haulage rope 10 synchronous motion of both sides, improved the stability of device, the bottom fixedly connected with second haulage rope 16 of slide bar 13, second haulage rope 16, the bottom fixedly connected with cable drum 17 of second haulage rope 16, the inside fixedly connected with cable drum 17 of cable drum 17 has fixed the axis of rotation 18, the left end of axis of rotation 18 stipulates to cup joint drive gear 19, the bottom meshing of drive gear 19 has drive gear 20, the inside fixedly connected with actuating lever 21 of drive gear 20, the both ends fixedly connected with drive wheel 22 of actuating lever 21, through setting up drive wheel 22, in the process that door frame 1 moves, drive wheel 22 can roll on the ground, thereby drive actuating lever 21 and rotate, make drive gear 20 on the actuating lever 21 drive gear 19 and rotate, the rope disc 17 is driven by the transmission gear 19 to rotate, so that the second traction rope 16 is wound on the rope disc 17, the fireproof plate 4 is conveniently driven to move in the opening and closing process of the door body 2, the driving rod 21 is movably sleeved inside the door body 2, the driving wheels 22 are symmetrically distributed at two ends of the driving rod 21, the bottom of the driving wheel 22 protrudes out of the bottom of the door body 2 and is in contact with the ground, the bottom of the fireproof plate 4 is fixedly connected with the shock absorber 23, the shock absorption spring 24 is arranged inside the shock absorber 23, the bottom of the shock absorption spring 24 is fixedly connected with the shock absorption block 25, the shock absorption block 25 is movably sleeved at the bottom of the shock absorber 23, the bottom of the shock absorption block 25 is fixedly connected with the buffer cushion 26, the shock absorption block 25 is arranged at the bottom of the fireproof plate 4, the shock absorption block 25 can be compressed into the shock absorber 23 in the process of putting down the fireproof plate 4, the generated impact force is, meanwhile, the cushion 26 at the bottom of the shock absorption block 25 can protect the ground, the ground is prevented from being damaged, the slot 27 is formed in the door body 2, the rotary handle 28 is movably sleeved in the fireproof plate 4, the inserted rod 29 is fixedly connected to the top of the rotary handle 28, the slot 27 formed in the door body 2 is limited by the rotary handle 28 and the inserted rod 29, the fireproof plate 4 and the door body 2 are combined with each other and can be better attached to each other, the fireproof plate 4 can be in close contact with the door body 2 after being quickly opened by the attachment, the door body 2 is protected, more importantly, a gap is formed between the general fireproof plate 4 and the door body after being erected, fire spreads and diffuses in the gap, the fireproof plate 4 cannot timely block the fire outside the door body, the fireproof effect of the fireproof door is extremely poor, in the application, in the process of opening the fireproof plate 4 along with the door body 2, utilize inserted bar 29 to insert slot 27's inside, though simple structure, the effect that can play prevents really that flame can't stretch between PLASTIC LAMINATED 4 AND gate body, because the multilayer design of PLASTIC LAMINATED 4, combine to make PLASTIC LAMINATED 4 can and gate body 2 between the in close contact with after opening fast, the fire prevention effect is very outstanding, simple structure cooperation [ promote the door body 2 to open can realize the in close contact with between PLASTIC LAMINATED 4 and the door body 2 ], unexpected effect has been realized. In the field of fire doors, no one has proposed in the market at present this measure and the resulting fire protection.
To sum up, when the structure for opening and closing the fire door of the staircase is used, the door body 2 is pushed to open, the door body 2 drives the driving wheel 22 to rotate, the driving wheel 22 drives the driving rod 21 to rotate, the driving gear 20 on the driving rod 21 drives the transmission gear 19 to rotate, the transmission gear 19 drives the rope disc 17 to rotate, the second traction rope 16 is wound on the rope disc 17, the sliding rod 13 is pulled downwards through the second traction rope 16, the right end of the first traction rope 10 is driven to move downwards, the starting pulley 9 is lifted upwards at the left end of the first traction rope 10, the movable pulley 9 is used for driving the steel cable 7 to move upwards, the fire-proof plate 4 is erected on the back surface of the door body 2, the fire-proof plate 4 is opened along with the door body 2, then the inserting rod 29 is inserted into the slot 27, the rotating handle 28 is rotated to be clamped in the slot 27 at ninety degrees, and the fire-proof plate 4 is connected with the, and (4) finishing.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims (9)

1. The utility model provides a structure is opened and close to fire door is prevented to stairwell, includes door frame (1), its characterized in that: the utility model discloses a fire-proof door, including door frame (1), door frame (2), door frame (1) and fireproof plate (4), the bottom of door frame (2) articulates there is fireproof plate (4), be provided with hinge (5) between door body (2) and fireproof plate (4), the top fixedly connected with fixing base (6) of fireproof plate (4), be provided with the pulling mechanism that drives fireproof plate (4) motion on fixing base (6).
2. The opening and closing structure of the fire door of the staircase according to claim 1, wherein: the pulling mechanism comprises a steel cable (7) connected to the top of the fixing seat (6), a movable pulley (9) is fixedly connected to the top end of the steel cable (7), a first traction rope (10) is wound on the outer portion of the movable pulley (9), a sliding rod (13) is fixedly connected to the right end of the first traction rope (10), a second traction rope (16) is fixedly connected to the bottom of the sliding rod (13), the second traction rope (16) is fixedly connected to the bottom of the second traction rope (16), a rope disc (17) is fixedly connected to the bottom of the second traction rope (16), a rotating shaft (18) is fixedly sleeved inside the rope disc (17), a transmission gear (19) is regularly sleeved at the left end of the rotating shaft (18), a driving gear (20) is meshed at the bottom of the transmission gear (19), a driving rod (21) is fixedly sleeved inside the driving gear (20), and two ends of the driving rod (21) are fixedly connected, the bottom of the fireproof plate (4) is fixedly connected with a shock absorber (23).
3. The opening and closing structure of the fire door of the staircase according to claim 2, wherein: the number of the steel cables (7) is two, the two steel cables are symmetrically distributed on two sides of the fixing seat (6), the front face of the door body (2) is provided with a through hole (8), and the steel cables (7) enter the interior of the door body (2) through the through hole (8).
4. The opening and closing structure of the fire door of the staircase according to claim 2, wherein: the inside fixedly connected with fixed pulley (11) of door body (2), the bottom of fixed pulley (11) and the one end fixed connection of first haulage rope (10), first haulage rope (10) are passed from the top of fixed pulley (11) after encircleing movable pulley (9) the round.
5. The opening and closing structure of the fire door of the staircase according to claim 2, wherein: the inside fixedly connected with of door body (2) supports pulley (12), support pulley (12) are located the right side of fixed pulley (11), the right side of supporting pulley (12) is located the top of slide bar (13), first haulage rope (10) are passed from the top of supporting pulley (12).
6. The opening and closing structure of the fire door of the staircase according to claim 2, wherein: the two ends of the sliding rod (13) are fixedly connected with sliding blocks (14), the right side of each sliding block (14) is clamped with a sliding chute (15), each sliding chute (15) is fixedly installed inside the door body (2), and the sliding chutes (15) are symmetrically distributed on the two sides of the sliding rod (13); the door body (2) is pushed to be opened, the door body (2) is utilized to drive the driving wheel (22) to rotate, the driving wheel (22) drives the driving rod (21) to rotate, the driving gear (20) on the driving rod (21) drives the transmission gear (19) to rotate, the transmission gear (19) drives the rope disc (17) to rotate, the second traction rope (16) is wound on the rope disc (17), the sliding rod (13) is pulled downwards through the second traction rope (16), the right end of the first traction rope (10) is driven to move downwards, the starting pulley (9) is lifted upwards at the left end of the first traction rope (19), the movable pulley (9) is utilized to drive the steel rope (7) to move upwards, the fireproof plate (4) is erected on the back surface of the door body (2), the fireproof plate (4) is opened along with the door body (2), then the inserting rod (29) is inserted into the inserting groove (27), the handle (28) is rotated to enable the inserting rod (29) to be clamped in the inserting groove (27), the fireproof plate (4) is connected with the door body (2).
7. The opening and closing structure of the fire door of the staircase according to claim 2, wherein: the driving rod (21) is movably sleeved inside the door body (2), the driving wheels (22) are symmetrically distributed at two ends of the driving rod (21), and the bottom of each driving wheel (22) protrudes out of the bottom of the door body (2) and is in contact with the ground.
8. The opening and closing structure of the fire door of the staircase according to claim 2, wherein: the inside of PLASTIC LAMINATED (4) is including fire prevention bottom plate (41), fire prevention bottom plate (41) are located the bottommost face of PLASTIC LAMINATED (4), the top of fire prevention bottom plate (41) is provided with first insulating layer (42), the top of first insulating layer (42) is provided with reinforcement (43), reinforcement (43) are the W shape, the top of reinforcement (43) is provided with second insulating layer (44), the top of second insulating layer (44) is provided with fire prevention roof (45).
9. The opening and closing structure of the fire door of the staircase according to claim 2, wherein: the shock absorber is characterized in that a shock absorption spring (24) is arranged inside the shock absorber (23), a shock absorption block (25) is fixedly connected to the bottom of the shock absorption spring (24), the shock absorption block (25) is movably sleeved at the bottom of the shock absorber (23), and a cushion pad (26) is fixedly connected to the bottom of the shock absorption block (25).
CN202011034131.3A 2020-09-27 2020-09-27 Opening and closing structure of fireproof door in staircase Withdrawn CN112160665A (en)

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CN209586164U (en) * 2019-01-15 2019-11-05 福建诚安蓝盾实业有限公司 A kind of heat-proof smoke-proof environmental protection walnut fire resistant doorsets
CN209780705U (en) * 2018-12-19 2019-12-13 安徽富煌门窗幕墙有限公司 Guardrail for door and window
CN210032974U (en) * 2019-03-20 2020-02-07 山东长江国粮仓储机械股份有限公司 Zipper type inner window

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0531246A1 (en) * 1991-09-04 1993-03-10 N. Noerholm & K. Lemming A/S A braking device for self-closing doors
US6460294B1 (en) * 1997-11-27 2002-10-08 Peter W. Harkins Window and door opening and closing mechanism
JP2003328635A (en) * 2002-05-16 2003-11-19 Hokuyo Automatic Co Smoke interruption sliding door
CN1890170A (en) * 2003-12-04 2007-01-03 奥蒂斯电梯公司 Elevator landing door system having fire protection device
CN201202346Y (en) * 2008-05-05 2009-03-04 江苏捷诚车载电子信息工程有限公司 Orifice opening and closing device
CN206758850U (en) * 2017-05-11 2017-12-15 江苏祥业电气有限公司 A kind of protection type distribution box
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CN109707288A (en) * 2018-12-01 2019-05-03 上海海钊民防设备有限公司 Steel construction closed guard gate
CN209780705U (en) * 2018-12-19 2019-12-13 安徽富煌门窗幕墙有限公司 Guardrail for door and window
CN209586164U (en) * 2019-01-15 2019-11-05 福建诚安蓝盾实业有限公司 A kind of heat-proof smoke-proof environmental protection walnut fire resistant doorsets
CN210032974U (en) * 2019-03-20 2020-02-07 山东长江国粮仓储机械股份有限公司 Zipper type inner window

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