A fire door with two-way opening

Abstract

The utility model relates to the field of fire protection facilities, and specifically provides a two-way opening fire door, comprising a door frame, wherein a main door and a secondary door are installed on the inner side of the door frame to block the fire source, and a rotating shaft is provided between the main door and the secondary door, and one side of the main door and the secondary door are respectively connected to different positions on the outer side of the rotating shaft, and the secondary door and the main door can be rotated by the rotatable characteristic of the rotating shaft, so that the secondary door can be folded toward one side of the main door, so that the fire door composed of the main door and the secondary door can be folded to reduce its width when opened, so as to achieve the effect of not obstructing the passage and walking, and the fire door can be locked by a lock arranged in the middle of the secondary door, and a linkage shaft is installed on one side of the main door, and the main door and the secondary door can be rotated by the linkage shaft through the linkage shaft, so as to change the opening direction and position of the fire door, so that the opening or closing of the fire door will not be affected by the accumulation of debris, and the flexibility of the fire door is improved.

Description

Technical Field

[0001] The utility model relates to the field of fire protection facilities, in particular to a fire door with a two-way opening function. Background Art

[0002] A fire door is a fire protection facility installed in residential or commercial buildings. It can isolate flames or temperature for a certain period of time in the event of a fire. It is made of special fireproof materials and is generally installed in fire passages. When necessary, the fire door can be closed to block heat sources and fire sources. The door lock can be controlled from two directions to open or close the fire door, thereby facilitating personnel use while protecting their safety.

[0003] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: since fire is a sudden event, fire passages are often occupied and debris is piled up at fire doors before a fire occurs. When a sudden fire requires the fire door to be closed, the accumulation of debris may hinder the opening or closing of the fire door. Therefore, the existing opening and closing methods of fire doors are not flexible enough and cannot effectively and timely block the fire source. In addition, the wider fire doors occupy a lot of the width of the passage when they are not in use, causing inconvenience to walking. Utility Model Content

[0004] In order to improve the problem that the existing fire doors cannot be flexibly opened in two directions and the fire doors are relatively wide, the present application provides a fire door that can be opened in two directions.

[0005] The present application provides a two-way opening fire door adopts the following technical solution: a two-way opening fire door, comprising a door frame, a main door is movably mounted on one inner side of the door frame, one side of the main door is connected to a rotating shaft, a secondary door is movably mounted on the other inner side of the door frame, one side of the secondary door is connected to an outer side of the rotating shaft, a lock is installed in the middle of the secondary door, one end of the lock is movably engaged with the inner side of the door frame, linkage shafts are installed at both upper and lower ends of one side of the main door, one end of the linkage shafts is movably engaged with the inner side of the door frame.

[0006] It is further configured that track grooves are provided at both upper and lower ends of the inner side of the door frame, lock grooves are provided on both sides of the inner middle part of the door frame, and multiple bolts are equidistantly arranged on both sides of the inner side of the door frame, and the bolts can be connected to the wall.

[0007] It is further provided that the shaft rotating device comprises an outer tube and an inner shaft, and the interior of the outer tube is rotatably sleeved with the exterior of the inner shaft.

[0008] It is further provided that a main connecting head is provided on one side of the main door, one side of the main connecting head is fixedly connected to the outer side of the outer tube, and one side of the main connecting head is provided with a card slot.

[0009] It is further configured that auxiliary connecting heads are provided at both upper and lower ends of one side of the auxiliary door, one side of the auxiliary connecting head is fixedly connected to the outer sides of the two ends of the inner shaft, a sliding groove is provided inside one side of the auxiliary door, a baffle is slidably installed inside the sliding groove, and one end of the baffle is slidably engaged with the inside of the card slot.

[0010] It is further configured that the linkage shaft includes an L-shaped tube, one end of the L-shaped tube is rotatably connected to a swivel head, one end of the swivel head is slidably engaged with the inside of the track groove, one end of the swivel head is internally rotatably sleeved with a ball, and the outer side of the ball is in contact with the inside of the track groove.

[0011] It is further configured that the other end of the L-shaped tube is slidably sleeved with a T-shaped tube, and one end of the T-shaped tube is movably sleeved with fixed tubes at both upper and lower locations, and one side of the fixed tube is fixedly connected to the outer side of the main door.

[0012] Compared with the related art, the two-way opening fire door provided by the utility model has the following beneficial effects:

[0013] The utility model provides a two-way opening fire door, by arranging a shaft rotating device between a main door and a secondary door, by connecting a main connecting head with the outer side of an outer tube, and then by connecting the secondary connecting head with the outer sides of both ends of an inner shaft, because the outer tube and the inner shaft are rotatably sleeved, the secondary door and the main door can be rotated by the shaft rotating device, and the secondary door can be rotated toward the main door to achieve a folding effect, so that the fire door composed of the main door and the secondary door can be folded to reduce its width when opened or closed, thereby not affecting the effect of obstructing passage passage caused by the width of the fire door, and when the fire door needs to be closed, it can be rotated from a folded state to an unfolded state, without affecting the blocking of fire sources.

[0014] The utility model provides a two-way opening fire door, in which a linkage shaft is connected to one side of the main door, and the main door can be rotated to open by extending and retracting one end of the T-tube inside the L-tube and rotating the other end inside the fixed tube, and the track groove is provided so that one end of the rotating head can be clamped inside the L-tube, and at the same time, the rolling of the ball can make the linkage shaft slide along the track groove, thereby driving the main door to move laterally along the track groove. When there is accumulation of debris outside the fire door, making it inconvenient to open or close the door body, the main door can drive the position of the secondary door and the positive and negative directions to change by moving the folded main door and the secondary door and rotating the rotating head, so that the main door is no longer restricted by the accumulation of debris and cannot be opened or closed, and the lock can be locked after the main door changes direction through the lock grooves provided on both sides of the inner side of the door frame, thereby solving the problem that the existing opening and closing methods of the fire door are not flexible enough. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1A schematic structural diagram of a preferred embodiment of a two-way opening fire door provided by the utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure of the main door, the rotating shaft and the auxiliary door of the utility model;

[0017] Figure 3 This is a schematic diagram of the door frame structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the rotating shaft of the utility model;

[0019] Figure 5 This is a schematic diagram of the auxiliary door structure of the utility model;

[0020] Figure 6 This is a schematic diagram of the main door structure of the utility model;

[0021] Figure 7 This is a schematic diagram of the linkage shaft structure of the utility model.

[0022] Numbers in the figure: 1. door frame; 101. track groove; 102. lock groove; 103. bolt; 2. main door; 201. main connector; 202. slot; 3. shaft swivel; 301. outer tube; 302. inner shaft; 4. auxiliary door; 401. auxiliary connector; 402. slide groove; 403. baffle; 5. lock; 6. linkage shaft; 601. L-shaped tube; 602. swivel; 6021. ball bearing; 603. T-shaped tube; 604. fixed tube. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings show typical embodiments of the present invention.

[0024] Embodiment 1:

[0025] like Figure 1 and Figure 2As shown, a two-way fire door of the utility model comprises a door frame 1, through which the fire door can be installed at the position of the door opening inside the building, a main door 2 and a secondary door 4 are installed on the inner side of the door frame 1, and the main door 2 and the secondary door 4 play a role in blocking the fire source, and a rotating shaft 3 is provided between the main door 2 and the secondary door 4, and one side of the main door 2 and the secondary door 4 are respectively connected to different positions on the outer side of the rotating shaft 3, and the secondary door 4 and the main door 2 can be rotated by the rotatable characteristic of the rotating shaft 3, so that the secondary door 4 can be folded toward one side of the main door 2, so that the main door 2 and the secondary door 4 can be combined. The fire door is folded to reduce its width when opened so as not to obstruct passage and walking. The fire door can be locked by a lock 5 arranged in the middle of the auxiliary door 4. A linkage shaft 6 is installed on one side of the main door 2. The main door 2 can be rotated normally to open or close through the linkage shaft 6. At the same time, the linkage shaft 6 can slide inside the door frame 1, thereby driving the main door 2 and the auxiliary door 4 to move, and making the main door 2 and the auxiliary door 4 rotate in the direction of the linkage shaft 6, thereby changing the opening direction and position of the fire door, so that the opening or closing of the fire door will not be affected by the accumulation of debris, thereby improving the flexibility of the fire door.

[0026] like Figure 3 As shown, the track groove 101 is provided to enable the linkage shaft 6 to slide, the lock groove 102 is provided to enable one end of the lock 5 to be engaged therewith for locking, and the bolt 103 is used to install the door frame 1 on the wall.

[0027] like Figure 4 , Figure 5 and Figure 6 As shown, by the setting of the rotating sleeve connection between the outer tube 301 and the inner shaft 302, the outer tube 301 can be connected to the slot 202, and the inner shaft 302 can be connected to the secondary connector 401, so that the main door 2 and the secondary door 4 can be driven to rotate by the rotation of the outer tube 301 and the inner shaft 302.

[0028] like Figure 5 and Figure 6 As shown, by providing a sliding groove 402, the baffle 403 can slide inside it, and by providing a locking groove 202, the baffle 403 can slide so that one end of it can be moved to the inside to be locked, so that the baffle 403 can limit the position between the main door 2 and the auxiliary door 4 and block the fire source at the rotating shaft 3 at the same time.

[0029] like Figure 3 and Figure 7As shown, by providing an L-shaped tube 601 and a rotating head 602 in an active connection, the main door 2 can be rotated and opened by rotating the rotating head 602 as the center, and the setting of the ball 6021 can drive the rotating head 602 to slide and move inside the track groove 101. By providing a T-shaped tube 603, it can be extended and retracted so that the main door 2 can be normally rotated to open or close. By rotating and clamping the fixed tube 604 with one end of the T-shaped tube 603, the main door 2 can be normally rotated to open.

[0030] During implementation, a shaft rotating device 3 is provided between the main door 2 and the auxiliary door 4, and the main connecting head 201 is connected to the outer side of the outer tube 301, and then the auxiliary connecting head 401 is connected to the outer sides of both ends of the inner shaft 302. Since the outer tube 301 and the inner shaft 302 are rotatably sleeved, the auxiliary door 4 and the main door 2 can be rotated through the shaft rotating device 3, and the auxiliary door 4 can be rotated toward the main door 2 to achieve a folding effect, so that the fire door composed of the main door 2 and the auxiliary door 4 can be folded to reduce its width when opened or closed, thereby not affecting the effect of obstructing the passageway caused by the width of the fire door, and when the fire door needs to be closed, it can be rotated from a folded state to an unfolded state, without affecting the isolation of the fire source. At the same time, a linkage shaft 6 is connected to one side of the main door 2, and one end of the T-tube 603 is telescopically extended inside the L-tube 601. The rotation of the other end inside the fixed tube 604 can make the main door 2 rotate and open, and through the setting of the track groove 101, one end of the rotating head 602 can be clamped inside it, and at the same time, the rolling of the ball 6021 can make the linkage shaft 6 slide along the track groove 101, thereby driving the main door 2 to move laterally along the track groove 101. When there is accumulation of debris outside the fire door, making it inconvenient to open or close the door body, the main door 2 can be moved and the position and forward and reverse directions of the secondary door 4 can be changed by rotating the swivel 602, so that the main door 2 is no longer restricted by the accumulation of debris and cannot be opened or closed, and the lock grooves 102 provided on both sides of the inner side of the door frame 1 can make the lock 5 locked after the main door 2 changes direction, solving the problem that the existing opening and closing methods of fire doors are not flexible enough.

[0031] The advantages of this technical solution in practical applications include but are not limited to the following:

[0032] 1. The fire door is divided into two parts: a main door 2 and a secondary door 4, which are connected by a rotating shaft 3. The secondary door 4 and the main door 2 can be rotated and folded by the rotating shaft 3, thereby reducing the width of the fire door to avoid affecting the passageway;

[0033] 2. By setting a track groove 101 on the inner side of the door frame 1, the swivel 602 can be connected inside it, which can not only drive the main door 2 to move as a whole but also enable the main door 2 to rotate and open normally. At the same time, the main door 2 and the auxiliary door 4 can be rotated to open in the direction through the swivel 602, so that the fire door will not be blocked by debris and will not be affected by closing and opening, thereby increasing flexibility.

[0034] When the fire door is opened, the lock 5 is operated to release one end of the lock from the locking groove 102, and the main door 2 and the auxiliary door 4 are pushed to rotate the main door 2 around the turning head 602. At this time, the telescopic T-tube 603 in the L-tube 601 and the fixed tube 604 rotate around one end of the T-tube 603, so that the main door 2 can be rotated and opened from the inner side of the door frame 1. When the baffle 403 is moved so that one end of the main door 2 is no longer connected to the inside of the locking groove 202, the auxiliary door 4 can be rotated and folded toward one side of the main door 2 by the rotation of the inner shaft 302 in the outer tube 301, so that the width of the fire door is reduced after the auxiliary door 4 and the main door 2 are folded, so that the main door 2 will not occupy too much walking passage after it is rotated and opened. When a fire occurs and debris accumulates outside the fire door, making it difficult to close and open, the main door 2 can be pushed and the ball 6021 can roll inside the track groove 101 to move the turntable 602 along the track groove 101, so that the main door 2 drives the folded auxiliary door 4 to move to the other end of the track groove 101. At the same time, the main door 2 can be rotated through the turntable 602 to change the opening direction of the fire door. After the opening direction is changed, the folded auxiliary door 4 can be rotated in the opposite direction and unfolded, so that the auxiliary door 4 and the main door 2 are re-located inside the door frame 1 to block the fire source. Finally, the baffle 403 is moved to block the fire source at the shaft 3 and control the closing of the lock 5, so that the opening or closing of the fire door will not be affected by the accumulation of debris, thereby improving the flexibility of the fire door.

[0035] The above are only exemplary embodiments of the present disclosure, and the scope of the present disclosure cannot be limited thereto. That is, any equivalent changes and modifications made according to the teachings of the present disclosure are still within the scope of the present disclosure. After considering the disclosure of the specification and the truth of practice, it will be easy for those skilled in the art to think of other embodiments of the present disclosure. This application is intended to cover any variation, use or adaptive change of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary technical means in the technical field not recorded in the present disclosure.

Claims

1. A two-way opening fire door, comprising a door frame (1), characterized in that: A main door (2) is movably mounted on one side of the inner side of the door frame (1), a rotating shaft (3) is connected to one side of the main door (2), a secondary door (4) is movably mounted on the other side of the inner side of the door frame (1), one side of the secondary door (4) is connected to the outer side of the rotating shaft (3), a lock (5) is mounted in the middle of the secondary door (4), one end of the lock (5) is movably engaged with the inner side of the door frame (1), and linkage shafts (6) are mounted on both upper and lower ends of one side of the main door (2), one end of each linkage shaft (6) is movably engaged with the inner side of the door frame (1).

2. A two-way opening fire door according to claim 1, characterized in that: The upper and lower ends of the inner side of the door frame (1) are provided with track grooves (101), the inner middle part of the door frame (1) is provided with lock grooves (102) on both sides, and the inner sides of the door frame (1) are evenly spaced with a plurality of bolts (103), and the bolts (103) can be connected to the wall.

3. A two-way opening fire door according to claim 1, characterized in that: The shaft rotating device (3) comprises an outer tube (301) and an inner shaft (302), and the interior of the outer tube (301) is rotatably sleeved with the exterior of the inner shaft (302).

4. A two-way opening fire door according to claim 1, characterized in that: A main connecting head (201) is provided on one side of the main door (2), one side of the main connecting head (201) is fixedly connected to the outside of the outer tube (301), and one side of the main connecting head (201) is provided with a card slot (202).

5. A two-way opening fire door according to claim 1, characterized in that: Auxiliary connectors (401) are provided at both upper and lower ends of one side of the auxiliary door (4), one side of the auxiliary connector (401) is fixedly connected to the outer sides of the two ends of the inner shaft (302), a slide groove (402) is provided inside one side of the auxiliary door (4), a baffle (403) is slidably installed inside the slide groove (402), and one end of the baffle (403) is slidably engaged with the inside of the card slot (202).

6. A two-way opening fire door according to claim 1, characterized in that: The linkage shaft (6) comprises an L-shaped tube (601), one end of the L-shaped tube (601) is rotatably connected to a rotating head (602), one end of the rotating head (602) is slidably engaged with the inside of the track groove (101), one end of the rotating head (602) is internally rotatably sleeved with a ball (6021), and the outer side of the ball (6021) is in contact with the inside of the track groove (101).

7. A two-way opening fire door according to claim 6, characterized in that: The other end of the L-shaped tube (601) is slidably sleeved with a T-shaped tube (603), and one end of the T-shaped tube (603) is movably sleeved with a fixed tube (604) at both upper and lower positions, and one side of the fixed tube (604) is fixedly connected to the outer side of the main door (2).

Images