CN213838395U

CN213838395U - Fireproof door structure

Info

Publication number: CN213838395U
Application number: CN202022424650.2U
Authority: CN
Inventors: 刘静丽; 洪玮
Original assignee: Fujian Fusheng Door Manufacturing Co ltd
Current assignee: Fujian Fusheng Door Manufacturing Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-07-30
Anticipated expiration: 2030-10-27

Abstract

The application discloses a fireproof door structure, which relates to the technical field of fireproof doors and solves the problem that a large amount of dense smoke passes through a fireproof door, and comprises a door frame and a fireproof door plate, wherein a door handle lock is arranged between the door frame and the fireproof door plate, the door frame comprises an upper cross beam, a lower cross beam and vertical beams at two sides, hinge columns are arranged at intervals on one side of the fireproof door plate along the vertical direction of the fireproof door plate, hinge sleeves for the hinge columns to be inserted are correspondingly arranged on the vertical beam on one side of the fireproof door plate, supporting springs for keeping gaps among the fireproof door plate, the upper cross beam and the lower cross beam are arranged in the hinge sleeves, and the supporting springs are always in a compression state; the movable groove has been seted up along its length direction to the entablature bottom, and there is the closing plate that is used for sealing the clearance between entablature and the fire door board along vertical direction movable mounting in the movable groove, is provided with the drive assembly that drives closing plate downstream on the door frame and will prevent fire door and support tightly on the bottom end rail. This application can reduce dense cigarette and pass through from preventing fire door's clearance.

Description

Fireproof door structure

Technical Field

The utility model belongs to the technical field of fire door's technique and specifically relates to a fire door structure is prevented.

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. It is a fire-proof partition with certain fire resistance, which is arranged in fire-proof regions, evacuation staircases, vertical shafts, etc.

Refer to the china utility model bulletin number and be a fire door that CN207829740U discloses, it includes fire door board and door frame, fire door board includes steel curb plate one, steel curb plate two and center splint, steel curb plate one and two dismantlements of steel curb plate are connected, center splint clamp is established between steel curb plate one and steel curb plate two, center splint's both sides are equipped with a plurality of cellular round holes, the round hole endotheca is equipped with the fire prevention sponge piece. The fireproof door can keep the separation of the fire condition under the condition of the fire condition, and has stable fire resistance.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: a gap is usually reserved between the fireproof door plate and the door frame so as to ensure the normal opening and closing functions of the fireproof door. When the condition of a fire takes place, this kind of clearance can not have great influence to preventing fire door's fire prevention effect, but has a large amount of dense cigarettes and air to pass through from preventing between fire door board and the door frame to get into human respiratory track, cause great hidden danger to personnel's safety.

SUMMERY OF THE UTILITY MODEL

In order to reduce the passage of dense smoke from the gaps of a fire door, the present application provides a fire door structure.

The application provides a prevent fire door structure adopts following technical scheme:

a fireproof door structure comprises a door frame and a fireproof door plate, wherein a door handle lock is arranged between the door frame and the fireproof door plate;

the door frame comprises an upper cross beam, a lower cross beam and vertical beams at two sides, hinge columns are arranged on one side of the fireproof door panel at intervals along the vertical direction of the fireproof door panel, hinge sleeves for the hinge columns to be inserted are correspondingly arranged on the vertical beam at one side, supporting springs for keeping gaps among the fireproof door panel, the upper cross beam and the lower cross beam are arranged in the hinge sleeves, and the supporting springs are always in a compressed state;

the door frame is provided with a driving assembly which drives the sealing plate to move downwards and supports the fireproof door against the lower cross beam.

By adopting the technical scheme, when a fire occurs, the driving assembly drives the sealing plate to move downwards, the sealing plate abuts against the fireproof door plate, and the lower end of the fireproof door plate abuts against the lower cross beam due to the fact that the fireproof door plate is supported by the supporting spring and continues to move downwards; therefore, the passing of dense smoke from the gaps of the fireproof door is reduced, and the safety of personnel is improved.

Preferably, the driving assembly comprises a rotating shaft, a gear arranged on the rotating shaft and a driving piece for driving the rotating shaft to rotate, the length direction of the rotating shaft is the same as that of the movable groove, the rotating shaft is horizontally and rotatably arranged in the movable groove, the gear and the rotating shaft are coaxially arranged, and a tooth groove meshed with the gear is formed in the sealing plate.

Through adopting above-mentioned technical scheme, driving piece drive axis of rotation rotates, drives the closing plate through the meshing of gear and tooth's socket and descends, and then makes the closing plate support tightly on fire door plant to make the lower extreme of fire door plant support tightly on the bottom end rail, improve fire door's the cigarette effect that separates.

Preferably, the driving piece is a driving motor with a forward and reverse rotation function, the upper cross beam extends from one wide side wall of the movable groove to form a hollow groove for installing the driving motor, a driving shaft of the driving motor is coaxially connected with the rotating shaft, and a control panel for controlling the working state of the driving motor is arranged at the middle position of the vertical beam positioned on the same side with the driving motor.

Through adopting above-mentioned technical scheme, control panel installs in the middle part position of erecting the roof beam, and the personnel of being convenient for are to driving motor's operation control, and control panel controls driving motor's operating condition for driving motor control closing plate that has the function of just reversing rises or descends, thereby the clearance size between control fire door plant and the door frame.

Preferably, when preventing that fire door is in the closure state, the perpendicular roof beam that installs control panel goes up to run through along the direction of perpendicular to fire door plant and sets up the mounting groove that supplies control panel to place, sealed lid is all installed to the both sides notch of mounting groove.

Through adopting above-mentioned technical scheme, when preventing that arbitrary side of fire door takes place the condition of a fire, the personnel that are located the opposite side can directly open sealed lid, make driving motor carry out work through the control surface, support the closing plate tightly on fire door board, and then compress tightly the bottom of fire door board on the bottom end rail, carry out effectual cigarette that separates to preventing fire door.

Preferably, the sealing cover is hinged to a notch of the mounting groove, a magnet for adsorbing the sealing cover is arranged at the notch of the mounting groove, and a pull ring is arranged outside the sealing cover.

Through adopting above-mentioned technical scheme, sealed lid articulates in mounting groove notch department, keeps the closed condition of sealed lid through magnet, can be convenient for open sealed lid between the personnel through the setting of pull ring, and the practicality is strong.

Preferably, one side of the sealing cover facing the inside of the mounting groove is provided with a fireproof rubber ring.

Through adopting above-mentioned technical scheme, because the both sides of mounting groove are the opening setting, can further improve the sealed effect of mounting groove through the setting of fire prevention rubber circle.

Preferably, the bottom of the sealing plate and the bottom of the fireproof door plate are both provided with fireproof rubber strips.

Through adopting above-mentioned technical scheme, through the setting of fire prevention rubber strip for when closing plate bottom supported tightly in fire door plant top, and when fire door plant bottom supported tightly in the bottom end of the bottom end rail, can further reduce the possibility that dense cigarette passes through.

Preferably, the gear is provided with two and along axis of rotation length direction interval distribution, the tooth's socket has seted up two correspondingly.

Through adopting above-mentioned technical scheme, the gear is provided with two, and the tooth's socket that corresponds with it has seted up two for the process that the gear drove the closing plate and goes up and down is more stable.

In summary, the present application includes at least one of the following benefits:

1. when a fire occurs, the sealing cover is opened, the driving motor works through the control panel to drive the gear on the rotating shaft to rotate, so that the sealing plate is driven to move downwards to abut against the fireproof door plate, and the fireproof door plate moves towards under the action of the sealing plate, so that the lower end of the fireproof door plate abuts against the lower cross beam; therefore, potential safety hazards to a human body caused by the fact that dense smoke passes through gaps of the fireproof door are reduced;

2. through the setting of fire prevention rubber strip for when closing plate bottom supported tightly in fire door plant top, and when fire door plant bottom supported tightly in the bottom end of the bottom end rail, can further reduce the possibility that dense cigarette passes through.

Drawings

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

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is a cross-sectional view of the upper cross member, seal plate and drive assembly of this embodiment;

FIG. 4 is another perspective cross-sectional view of the top rail, seal plate and drive assembly of this embodiment;

FIG. 5 is a schematic structural view of the fire door panel and the sealing cover of the present embodiment when they are opened;

fig. 6 is an enlarged schematic view at B in fig. 5.

Description of reference numerals: 1. a door frame; 11. an upper cross beam; 111. a movable groove; 112. a sealing plate; 113. a fire-proof rubber strip; 114. an empty groove; 115. a working groove; 116. a tooth socket; 12. a lower cross beam; 13. erecting a beam; 131. a hinge sleeve; 132. a support spring; 133. mounting grooves; 134. a sealing cover; 135. a magnet; 136. a fireproof rubber ring; 137. a pull ring; 2. a fire door panel; 21. connecting columns; 22. a hinged column; 3. a door handle lock; 4. a drive assembly; 41. a rotating shaft; 42. a gear; 43. a drive motor; 44. a control panel.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses prevent fire door structure. Referring to fig. 1, the fire door structure includes a door frame 1 and a fire door panel 2. The door frame 1 includes an upper beam 11, a lower beam 12, and vertical beams 13 on both sides. The opening and closing state of the fireproof door is controlled between the fireproof door panel 2 and the door frame 1 through the door handle lock 3.

Referring to fig. 1 and 2, a connecting column 21 is welded at intervals along the vertical direction of one side edge of the fire door panel 2, and a hinge column 22 is welded and fixed at the bottom end of the connecting column 21. The vertical beam 13 on one side is correspondingly welded with a hinge sleeve 131 for the hinge column 22 to be inserted, the bottom of the hinge sleeve 131 is a sealing structure, and a support spring 132 is installed in the hinge sleeve 131. The supporting spring 132 is sleeved on the outer wall of the hinge post 22. One end of the supporting spring 132 abuts against the connecting post 21, and the other end abuts against the bottom of the hinge sleeve 131. The supporting spring 132 is always in a compressed state, and under the action of the supporting spring 132, the upper end and the lower end of the fireproof door panel 2 are kept to be spaced from the door frame 1, so that the normal opening and closing of the fireproof door panel 2 are maintained.

Referring to fig. 3, a movable groove 111 is formed in the bottom of the upper cross beam 11 along the length direction, a sealing plate 112 is movably installed in the movable groove 111 along the vertical direction, and fireproof rubber strips 113 are bonded to the bottom of the sealing plate 112 and the bottom of the fireproof door panel 2. The door frame 1 is provided with a driving assembly 4 for driving the sealing plate 112 to move downwards and tightly press the fire door against the lower beam 12. Through the setting of closing plate 112 and drive assembly 4, shelter from the clearance between fire door plant 2 and the door frame 1, through the dense cigarette of preventing fire door when reducing the condition of a fire and taking place.

Referring to fig. 3 and 4, the driving assembly 4 includes a rotating shaft 41, a gear 42 welded to the rotating shaft 41, and a driving member for driving the rotating shaft 41 to rotate. The driving member is a driving motor 43 with a forward and reverse rotation function. The upper beam 11 extends and is clamped on a wide side wall of the movable groove 111 to form a hollow groove 114 for installing the driving motor 43. The recess 114 is located at the end of the upper beam 11 remote from the hinge of the fire door panel 2. The driving motor 43 is fixed in the empty groove 114 by bolts. An electrifying cable connected with a power supply is embedded in the wall body in advance, penetrates through the door frame 1 and is connected with the driving motor 43, and then the driving motor 43 is supplied with power.

Referring to fig. 3 and 4, two gears 42 are provided and spaced apart from each other on the rotating shaft 41. A vertical side wall of the sealing plate 112 is provided with a tooth groove 116 engaged with the gear 42 along the vertical direction. One side of the movable groove 111 close to the tooth groove 116 is provided with a working groove 115 along the length direction thereof for rotating the rotating shaft 41 and the gear 42, and the working groove 115 is communicated with the empty groove 114. One end of the rotating shaft 41 is rotatably connected to one end wall of the working groove 115 through a bearing, and the other end is connected to a driving shaft of the driving motor 43.

Referring to fig. 5 and 6, a control panel 44 for controlling the operation of the driving motor 43 is mounted on the vertical beam 13 on the same side as the driving motor 43. When the fire door is in a closed state, the vertical beam 13 on which the control panel 44 is installed is penetrated with an installation groove 133 for placing control along a direction perpendicular to the fire door panel 2. The control panel 44 is connected to the driving motor 43 through a wire harness arranged in the vertical beam 13, and further controls the operating state of the driving motor 43.

Referring to fig. 5 and 6, sealing covers 134 are hinged to the notches of the two sides of the mounting groove 133, the upper ends of the sealing covers 134 are hinged to the notches of the mounting groove 133, and pull rings 137 convenient for being pulled by a human hand protrude outwards from the lower ends of the sealing covers 134. When a fire occurs on any side of the fire door panel 2, a person on the other side can directly open the sealing cover 134 to control the driving motor 43 to work. The inner wall of the notch of the mounting groove 133 is provided with a magnet 135 for adsorbing the sealing cover 134 in a protruding manner, and the sealing cover 134 contains a magnetic material. The inside circumference of sealed lid 134 bonds there is fire prevention rubber circle 136, and when sealed lid 134 sealed mounting groove 133, fire prevention rubber circle 136 supported tightly on the week side inner wall of mounting groove 133, improved sealed effect.

The implementation principle of the fireproof door structure in the embodiment of the application is as follows:

when a fire occurs, the sealing cover 134 is opened, the driving motor 43 is driven to work through the control panel 44, the gear 42 on the rotating shaft 41 is driven to rotate, the sealing plate 112 is driven to move downwards to abut against the fireproof door panel 2, and the fireproof door panel 2 moves towards under the action of the sealing plate 112, so that the lower end of the fireproof door panel 2 abuts against the lower cross beam 12; therefore, the potential safety hazard to the human body caused by the fact that dense smoke passes through the gap of the fireproof door is reduced.

After the fire is eliminated, the driving motor 43 drives the sealing plate 112 to move upwards, so that the sealing plate 112 is separated from the fireproof door plate 2, the fireproof door plate 2 rises under the action of the supporting spring 132, and gaps are reserved at the upper end and the lower end of the door frame 1 to maintain normal work.

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

Claims

1. A fireproof door structure comprises a door frame (1) and a fireproof door panel (2), wherein a door handle lock (3) is arranged between the door frame (1) and the fireproof door panel (2);

the method is characterized in that: the door frame (1) comprises an upper cross beam (11), a lower cross beam (12) and vertical beams (13) at two sides, hinge columns (22) are arranged at intervals on one side of the fireproof door panel (2) along the vertical direction of the fireproof door panel, a hinge sleeve (131) for the hinge columns (22) to be inserted is correspondingly arranged on the vertical beam (13) at one side, a support spring (132) for keeping the fireproof door panel (2), the upper cross beam (11) and the lower cross beam (12) to have gaps is arranged in the hinge sleeve (131), and the support spring (132) is always in a compression state;

the door frame is characterized in that a movable groove (111) is formed in the bottom of the upper cross beam (11) along the length direction of the upper cross beam, a sealing plate (112) used for sealing a gap between the upper cross beam (11) and the fireproof door panel (2) is movably mounted in the movable groove (111) along the vertical direction, and a driving assembly (4) which drives the sealing plate (112) to move downwards and tightly supports the fireproof door on the lower cross beam (12) is arranged on the door frame (1).

2. The fire rated door structure of claim 1, wherein: the driving assembly (4) comprises a rotating shaft (41), a gear (42) arranged on the rotating shaft (41) and a driving piece for driving the rotating shaft (41) to rotate, the length direction of the rotating shaft (41) is the same as that of the movable groove (111), the rotating shaft (41) is horizontally and rotatably arranged in the movable groove (111), the gear (42) and the rotating shaft (41) are coaxially arranged, and a tooth groove (116) meshed with the gear (42) is formed in the sealing plate (112).

3. A fire door construction in accordance with claim 2, further characterized by: the driving piece is driving motor (43) with positive and negative rotation function, the upper beam (11) extends in a broadside lateral wall of activity groove (111) and is offered dead slot (114) that supply driving motor (43) to install, the drive shaft and the axis of rotation (41) coaxial coupling of driving motor (43), wherein lie in with driving motor (43) and install control panel (44) of control driving motor (43) operating condition on the perpendicular roof beam (13) the middle part position on the same side.

4. A fire door construction in accordance with claim 3, further characterized by: when preventing fire door and being in the closure state, install vertical beam (13) of control panel (44) and go up along the direction of perpendicular to fire door board (2) and run through and offer mounting groove (133) that supply control panel (44) to place, sealed lid (134) are all installed to the both sides notch of mounting groove (133).

5. The fire rated door structure of claim 4, wherein: the sealing cover (134) is hinged to the notch of the mounting groove (133), a magnet (135) used for adsorbing the sealing cover (134) is arranged at the notch of the mounting groove (133), and a pull ring (137) is arranged outside the sealing cover (134).

6. The fire rated door structure of claim 5, wherein: one side of the sealing cover (134) facing the inside of the mounting groove (133) is provided with a fireproof rubber ring (136).

7. The fire rated door structure of claim 1, wherein: and fireproof rubber strips (113) are arranged at the bottom of the sealing plate (112) and the bottom of the fireproof door panel (2).

8. A fire door construction in accordance with claim 2, further characterized by: the gear (42) is provided with two and along axis of rotation (41) length direction interval distribution, tooth's socket (116) have seted up two correspondingly.