Fireproof door for fire-fighting passage

Abstract

This utility model discloses a fireproof door for fire escape routes that prevents jamming, belonging to the field of fire door technology. It includes a door frame and a door structure arranged inside the door frame for sealing or sliding open the fire escape route. The door structure includes a fire door and hinges arranged on one side of the fire door and door frame, and a movable frame slidably installed inside the fire door. In use, the door frame can be fixed at the fire escape route. Pushing the sealed door allows it to flip on the door frame via the hinges, thus opening the fire escape route. If the sealed door jams, the angle restriction on the movable baffle can be released by rotating the adjustment dial. Flipping the movable baffle then opens the movable frame, providing a passage for a single person to pass through, preventing complete door failure due to a malfunction of the single opening method, and facilitating rapid escape in emergencies.

Description

Technical Field

[0001] This utility model relates to the field of fire door technology, specifically to a fire door for fire escape routes that prevents jamming. Background Technology

[0002] Fire doors for fire escape routes are key facilities in buildings used to ensure the safety of fire escape routes. They are mainly used to prevent the spread of fire and smoke, ensure the safe evacuation of personnel and the smooth access of firefighters. These doors are usually made of steel or fire-resistant wood and have a certain degree of fire resistance.

[0003] In the existing technology, fire doors in fire escape routes mostly use electric opening methods, and the opening method is singular. If a power outage occurs in the event of a fire or other emergency, or if the door malfunctions and jams, the door may become completely inoperable and unable to be opened, preventing nearby people from escaping quickly. Utility Model Content

[0004] In view of the above-mentioned technical deficiencies, the purpose of this utility model is to provide a fireproof door for fire escape routes that prevents jamming, so as to solve the problem mentioned in the background art that most fireproof doors for fire escape routes adopt electric opening methods and have a single opening method. If a power failure or jamming occurs, the door may become completely ineffective and unable to be opened.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A fireproof door for fire escape routes designed to prevent jamming, comprising:

[0007] Door frame;

[0008] The door structure, located inside the door frame, is used to close off fire escape routes or to open them by sliding and flipping.

[0009] A sliding limit structure is arranged on the door structure to limit the sliding of the door structure;

[0010] A flip-stop structure is arranged on the door structure to limit the flip-opening of the door.

[0011] Preferably, the door structure includes:

[0012] Fire doors;

[0013] Hinges are installed on one side of the fire door and door frame;

[0014] The movable frame slides inside the fire door;

[0015] Fireproof baffles are rotatably installed inside the movable frame.

[0016] Preferably, the door structure further includes a storage groove, which is located inside the fire door, and the movable frame is slidably installed in the storage groove for storing the movable frame.

[0017] Preferably, the sliding limiting structure includes:

[0018] A shaft hole is formed inside the fire door;

[0019] The connecting shaft is rotatably mounted inside the shaft hole.

[0020] The L-shaped lever and knob are respectively located at both ends of the connecting shaft;

[0021] An L-shaped limiting plate is arranged on one side of the movable frame, and the L-shaped stop bar is in contact with the L-shaped limiting plate.

[0022] Preferably, the sliding limiting structure further includes a torsion spring, which is sleeved on the connecting shaft. One end of the torsion spring is arranged on the inner wall of the shaft hole, and the other end of the torsion spring is arranged on the connecting shaft.

[0023] Preferably, the flipping limiting structure includes:

[0024] The chute is located inside the fireproof baffle.

[0025] The slide bar is slidably installed in the slide groove;

[0026] Several pins are evenly arranged below the slide bar;

[0027] Several sockets are evenly distributed inside the movable frame, and the pins are movably installed in the corresponding sockets;

[0028] A fixed shaft is rotatably installed inside the fireproof baffle, and the fixed shaft is arranged on the movable frame;

[0029] The blocking components are arranged on the active frame.

[0030] Preferably, the blocking assembly includes a limiting baffle, which is arranged on the movable frame and contacts one side of the fireproof baffle to limit the flipping angle of the fireproof baffle.

[0031] Preferably, the flipping limiting structure further includes:

[0032] The guide rod is positioned on one side of the slide rod;

[0033] A guide groove is formed inside the fireproof baffle, and the guide rod is slidably installed in the guide groove;

[0034] A spring, one end of which is positioned on the inner wall of the slide rod and the slide groove;

[0035] Both adjusting dials are rotatably installed inside the fireproof baffle;

[0036] The linkage shaft is located between the two adjusting dials;

[0037] The connecting rod is rotatably mounted on the linkage shaft and the slide rod.

[0038] The beneficial effects of this utility model are as follows:

[0039] In use, the door frame can be fixed at the fire escape route. Pushing the sealed door will allow it to flip on the door frame via the hinges, thus opening the fire escape route. If the sealed door gets stuck, the angle restriction on the movable baffle can be released by rotating the adjustment dial. Flipping the movable baffle will open the movable frame, providing a passage for one person to pass through. This avoids the door from completely failing due to a malfunction of the single opening method, facilitating rapid escape in emergencies.

[0040] In this invention, if the sealed door and the bottom of the movable baffle are blocked by debris and cannot be flipped open, the restriction on the movable frame can be released by flipping the L-shaped lever. At this time, pushing the movable frame horizontally can drive the movable baffle into the storage slot, so that the passage can be opened by sliding. By adopting a variety of different opening methods, the probability of jamming can be further reduced. Moreover, the opening method adopted by this device does not require the power supply, which can ensure that a quick escape can still be made in the event of power failure or equipment failure. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 A structural schematic diagram of a fireproof door for fire escape routes that prevents jamming, provided for an embodiment of this utility model;

[0043] Figure 2 A side view of a fire door for fire escape routes designed to prevent jamming, provided as an embodiment of this utility model;

[0044] Figure 3 A schematic diagram of the fire door structure for an anti-jamming fire escape passage provided in this embodiment of the utility model;

[0045] Figure 4 A cross-sectional view of a fire door for preventing jamming in fire escape routes, provided for an embodiment of this utility model;

[0046] Figure 5A schematic diagram of the connecting shaft structure of a fireproof door for fire escape routes that prevents jamming, provided for an embodiment of this utility model;

[0047] Figure 6 This is a schematic diagram of the sliding rod structure of a fireproof door for fire escape routes that is designed to prevent jamming, as provided in an embodiment of this utility model.

[0048] Explanation of reference numerals in the attached figures:

[0049] 1. Door frame; 2. Fire door; 201. Hinge; 202. Storage slot; 203. Movable frame; 204. Fireproof baffle; 3. Shaft hole; 301. Connecting shaft; 302. L-shaped stop bar; 303. Knob; 304. L-shaped limit plate; 305. Torsion spring; 4. Slide groove; 401. Slide rod; 402. Pin; 403. Insertion hole; 404. Guide rod; 405. Guide groove; 406. Spring; 407. Adjusting turntable; 408. Linkage shaft; 409. Connecting rod; 410. Fixed shaft; 411. Limit baffle. Detailed Implementation

[0050] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0051] Example 1:

[0052] like Figures 1 to 6 As shown, this utility model provides a fireproof door for fire escape routes that prevents jamming, including: a door frame 1 and a door structure arranged inside the door frame 1 for closing the fire escape route or for sliding and flipping to open the fire escape route.

[0053] The door structure includes a fire door 2 and a hinge 201 arranged on one side of the fire door 2 and the door frame 1. A movable frame 203 is slidably installed inside the fire door 2. A fireproof baffle 204 is rotated and installed inside the movable frame 203. Pushing the fire door 2 can make it flip on the door frame 1 through the hinge 201, and at the same time drive the movable frame 203 and the fireproof baffle 204 to flip, thus opening the fire passage.

[0054] The door structure also includes a storage slot 202 inside the fire door 2 for storing the movable frame 203. The movable frame 203 is slidably installed in the storage slot 202 and can slide within the storage slot 202. When the movable frame 203 is stored in the storage slot 202, a passage for one person to pass through can be opened on the fire door 2.

[0055] Example 2:

[0056] Based on Example 1, in order to allow the fire escape passage to be opened horizontally when the bottom of the fire door 2 is blocked by a foreign object, a sliding limit structure is arranged on the door structure to limit the sliding of the door structure.

[0057] The sliding limiting structure includes a shaft hole 3 inside the fire door 2, a connecting shaft 301 rotatably installed inside the shaft hole 3, an L-shaped stop bar 302 and a knob 303 respectively arranged at both ends of the connecting shaft 301, and an L-shaped limiting plate 304 arranged on one side of the movable frame 203. The L-shaped stop bar 302 is in contact with the L-shaped limiting plate 304. By rotating the corresponding knob 303 or the L-shaped stop bar 302, the flipped L-shaped stop bar 302 will disengage from the L-shaped limiting plate 304, thereby releasing the restriction on the movable frame 203.

[0058] The sliding limiting structure also includes a torsion spring 305 sleeved on the connecting shaft 301. One end of the torsion spring 305 is arranged on the inner wall of the shaft hole 3, and the other end of the torsion spring 305 is arranged on the connecting shaft 301. The torsion spring 305 is in a compressed state. Under the elastic force of the torsion spring 305, the L-shaped stop bar 302 can always block the L-shaped limiting plate 304 on one side under normal conditions to prevent slippage.

[0059] Example 3:

[0060] Based on Example 1, in order to open the fire escape route in other ways when the fire door 2 is stuck in the flip, a flip-limiting structure is arranged on the door structure to limit the flip-opening of the door.

[0061] The flipping limiting structure includes a groove 4 inside the fireproof baffle 204, a slide rod 401 slidably installed in the groove 4, several pins 402 evenly arranged below the slide rod 401, several holes 403 evenly opened inside the movable frame 203, the pins 402 being movably installed in the corresponding holes 403, a fixed shaft 410 rotatably installed inside the fireproof baffle 204 and serving as a fulcrum for the rotation of the fireproof baffle 204, the fixed shaft 410 being arranged on the movable frame 203, and a blocking component arranged on the movable frame 203. When the slide rod 401 moves, it slides in the groove 4 and drives the pins 402 to disengage from the holes 403, thereby releasing the angle restriction on the fireproof baffle 204. At this time, pushing the fireproof baffle 204 can cause it to flip vertically on the fixed shaft 410, thereby opening a channel on the movable frame 203.

[0062] Specifically, the blocking component includes a limiting baffle 411 arranged on the movable frame 203 and in contact with one side of the fireproof baffle 204 to limit the rotation angle of the fireproof baffle 204. The limiting baffle 411 can limit the rotation angle of the fireproof baffle 204 and prevent it from over-rotating.

[0063] The flip-limiting structure also includes a guide rod 404 arranged on one side of the slide rod 401, a guide groove 405 opened inside the fireproof baffle 204, the guide rod 404 being slidably installed in the guide groove 405, a spring 406 slidably sleeved on the guide rod 404, one end of the spring 406 being arranged on the slide rod 401, and the other end of the spring 406 being arranged on the inner wall of the slide groove 4, two adjusting discs 407 rotatably installed inside the fireproof baffle 204, a linkage shaft 408 arranged between the two adjusting discs 407, and a connecting rod 409 rotatably installed on the linkage shaft 408 and the slide rod 401. Rotating the adjusting discs 407 can drive the linkage shaft 408 to rotate, so that the linkage shaft 408 pulls the slide rod 401 upward through the connecting rod 409. The moving slide rod 401 will slide in the slide groove 4 and compress the spring 406, while driving the guide rod 404 to slide in the guide groove 405, thereby limiting the movement direction of the slide rod 401.

[0064] Working principle: When in use, the door frame 1 can be fixed at the fire passage. By pushing the fire door 2, it can be flipped on the door frame 1 via the hinge 201. At the same time, it will cause the movable frame 203 and the fire baffle 204 to flip, opening the fire passage. If the flipping of the fire door 2 is stuck, the adjustment turntable 407 can be rotated to drive the linkage shaft 408 to rotate. This will cause the linkage shaft 408 to drive one end of the connecting rod 409 to move. The connecting rod 409 will pull the slide rod 401 to rise, so that the slide rod 401 can compress the spring 406 and drive the pin 402 to disengage from the socket 403. This will release the angle restriction on the fire baffle 204. At this time, pushing the fire baffle 204 will cause it to flip vertically on the fixed shaft 410, opening the passage on the movable frame 203 and providing a passage for one person to pass through.

[0065] When the fireproof baffle 204 needs to be closed, it is flipped back to its original position. The reset fireproof baffle 204 drives the pin 402 to realign with the socket 403. At this time, the adjusting turntable 407 is released, and the compressed spring 406 pushes the slide rod 401 to reset, which in turn drives the pin 402 to re-insert into the socket 403, thereby restricting the angle of the fireproof baffle 204 again.

[0066] If the bottom of the fire door 2 or the fire baffle 204 is blocked by foreign objects and cannot be flipped open, the corresponding knob 303 or L-shaped lever 302 can be rotated. When the L-shaped lever 302 is rotated, it can drive the connecting shaft 301 to rotate in the shaft hole 3 and further compress the torsion spring 305. The flipped L-shaped lever 302 will be released from the obstruction of the L-shaped limiting plate 304, thus releasing the restriction on the movable frame 203. Then, push the movable frame 203, and the movable frame 203 can slide in the storage slot 202. At the same time, it will drive the fire baffle 204 to be stored in the storage slot 202, thus opening the passage.

[0067] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A fire door for a fire exit which prevents a door from being stuck, characterized in that, include: Door frame (1); The door structure is arranged inside the door frame (1) and is used to close the fire passage or to open the fire passage by sliding and flipping. A sliding limit structure is arranged on the door structure to limit the sliding of the door structure; A flip-stop structure is arranged on the door structure to limit the flip-opening of the door.

2. A fireproof door for fire escape routes to prevent jamming, as described in claim 1, characterized in that, The door structure includes: Fire door (2); Hinges (201) are arranged on one side of the fire door (2) and the door frame (1); The movable frame (203) is slidably installed inside the fire door (2); Fireproof baffle (204) is rotatably installed inside the movable frame (203).

3. A fireproof door for fire escape routes to prevent jamming, as described in claim 1, characterized in that, The door structure also includes a storage slot (202), which is located inside the fire door (2). The movable frame (203) is slidably installed in the storage slot (202) to store the movable frame (203).

4. A fireproof door for fire escape routes to prevent jamming, as described in claim 1, characterized in that, The sliding limiting structure includes: A shaft hole (3) is formed inside the fire door (2); The connecting shaft (301) is rotatably mounted inside the shaft hole (3); The L-shaped lever (302) and the knob (303) are respectively arranged at both ends of the connecting shaft (301); An L-shaped limiting plate (304) is arranged on one side of the movable frame (203), and the L-shaped stop bar (302) is in contact with the L-shaped limiting plate (304).

5. A fireproof door for fire escape routes to prevent jamming, as described in claim 1, characterized in that, The sliding limit structure also includes a torsion spring (305), which is sleeved on the connecting shaft (301). One end of the torsion spring (305) is arranged on the inner wall of the shaft hole (3), and the other end of the torsion spring (305) is arranged on the connecting shaft (301).

6. A fireproof door for fire escape routes to prevent jamming, as described in claim 1, characterized in that, The flip-limiting structure includes: The chute (4) is formed inside the fireproof baffle (204); The slide bar (401) is slidably installed in the slide groove (4); Several pins (402) are evenly arranged below the slide bar (401); Several sockets (403) are evenly distributed inside the movable frame (203), and the pins (402) are movably installed in the corresponding sockets (403); A fixed shaft (410) is rotatably installed inside the fireproof baffle (204) and is arranged on the movable frame (203).

7. A fireproof door for fire escape routes to prevent jamming, as described in claim 6, characterized in that, The movable frame (203) is provided with a blocking component to limit the excessive flipping of the fireproof baffle (204).

8. A fireproof door for fire escape routes to prevent jamming, as described in claim 7, characterized in that, The blocking assembly includes a limiting baffle (411), which is arranged on the movable frame (203) and in contact with one side of the fireproof baffle (204) to limit the flipping angle of the fireproof baffle (204).

9. A fireproof door for fire escape routes to prevent jamming, as described in claim 1, characterized in that, The flip-limiting structure also includes: The guide rod (404) is arranged on one side of the slide rod (401); A guide groove (405) is formed inside the fireproof baffle (204), and the guide rod (404) is slidably installed in the guide groove (405); A spring (406) is sleeved on the guide rod (404).

10. A fireproof door for fire escape routes to prevent jamming, as described in claim 9, characterized in that, The fireproof baffle (204) is also provided with an adjusting turntable (407), the adjusting turntable (407) is provided with a linkage shaft (408), and a connecting rod (409) is provided between the linkage shaft (408) and the slide rod (401). The two ends of the connecting rod (409) are rotatably connected to the linkage shaft (408) and the slide rod (401), respectively.

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