Fireproof door convenient to open

Abstract

The utility model relates to a fireproof door convenient to open, and belongs to the technical field of fireproof equipment. The door comprises a door frame and a door leaf rotationally arranged on the door frame through a hinge, a baffle is arranged on the side, close to the interior of a room, of the door frame, so that the door leaf can only be opened towards the interior of a staircase, and a clamping groove is formed in the side, away from the hinge, of the door frame. The depth of the side, close to the baffle, of the clamping groove is larger than the depth of the side, away from the baffle, of the clamping groove, a trapezoidal clamping block is slidably arranged in the clamping groove, a locking assembly and an unlocking assembly are further arranged on the door frame, and the locking assembly is connected with the clamping block and used for driving the clamping block to move away from the baffle. The unlocking assembly is connected with the clamping block and used for driving the clamping block to move towards the baffle. The fireproof door has the effect that the fireproof door can be conveniently opened in a fire disaster.

Description

Technical Field

[0001] The present application relates to the field of fire protection equipment technology, and in particular to a fire protection door that is easy to open. Background Art

[0002] Fire doors refer to doors that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time. They are fireproof partitions with certain fire resistance, installed between fire compartments, evacuation stairwells, vertical shafts, etc. Existing fire doors usually have pneumatic devices installed on the upper part of the fire doors, so that the fire doors are in a normally closed state.

[0003] When a fire occurs, the pneumatic device on the fire door is destroyed by the fire and is in a power-off state, making it difficult to open the fire door and affecting people's escape through the safe passage. Summary of the invention

[0004] In order to facilitate opening of the fire door in case of fire, the present application provides a fire door that is easy to open.

[0005] The present application provides a fire door that is easy to open using the following technical solution:

[0006] A fireproof door that is easy to open, comprises a door frame and a door leaf that is rotatably arranged on the door frame by means of hinges, a baffle being arranged on the side of the door frame close to the interior of the room so that the door leaf can only be opened toward the stairwell, a clamping groove is arranged on the door frame and on the side of the door frame away from the hinge, the depth of the clamping groove on the side close to the baffle is greater than the depth of the clamping groove on the side away from the baffle, a trapezoidal clamping block is slidably arranged in the clamping groove, a locking assembly and an unlocking assembly are also arranged on the door frame, the locking assembly is connected to the clamping block and is used to drive the clamping block to move away from the baffle, and the unlocking assembly is connected to the clamping block and is used to drive the clamping block to move toward the baffle.

[0007] Optionally, sliding grooves parallel to the bottom wall of the clamping groove are provided on both side walls of the clamping groove, and sliding blocks adapted to the sliding grooves are provided on both sides of the clamping block.

[0008] Optionally, the locking assembly includes a spring, which is located in the snap-in groove, and one end of the spring is connected to the inner wall of the snap-in groove, and the other end is connected to the snap-in block, and the spring makes the snap-in block always have a tendency to move away from one side of the baffle.

[0009] Optionally, the clamping block is provided with rounded corners.

[0010] Optionally, the unlocking assembly includes a magnet block, and a storage box for storing the magnet block is provided on the side of the door leaf facing the interior of the room, and the clamping block is made of magnetic conductive metal.

[0011] Optionally, a placement rack is provided on the door frame at a position opposite to the clamping groove.

[0012] Optionally, an electromagnet is embedded on the door leaf and on the side wall of the clamping groove close to the baffle.

[0013] Optionally, the door frame is covered with a fluorescent coating around the placement rack, and the door leaf is also covered with a fluorescent coating around the placement box.

[0014] In summary, the present application includes at least one of the following beneficial technical effects:

[0015] 1. The door leaf rotates to approach the baffle, and the door leaf drives the clamping block to move toward the end of the clamping groove with a deeper depth. The gap between the clamping block and the door leaf tends to increase, and the door leaf can smoothly move to fit the baffle. After the door leaf is closed, the clamping block always tends to move toward the end of the clamping groove with a shallower depth under the action of the locking assembly. At this time, the clamping block clamps the door leaf on the door frame, thereby locking the door leaf.

[0016] 2. When opening the door leaf, the unlocking component drives the card block to move toward the baffle, and the gap between the card block and the door leaf increases, so that the door leaf can be opened smoothly. Through the cooperation of the locking component and the unlocking component, the door leaf can be locked or opened, avoiding the problem that the civil air defense door cannot be opened due to power failure of the pneumatic device, which facilitates the opening of the civil air defense door. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.

[0018] Figure 2 The door frame Figure 1 A sectional view with sectioning along line AA.

[0019] Description of reference numerals:

[0020] 1. Door frame; 2. Door leaf; 21. Snap-in groove; 22. Slide groove; 23. Placement box; 3. Baffle; 4. Snap-in block; 5. Spring; 6. Magnet block; 7. Placement rack; 8. Electromagnet. DETAILED DESCRIPTION

[0021] Combine the following with Figure 1-2 This application is described in further detail.

[0022] The present application embodiment discloses a fire door that is easy to open, referring to Figure 1 and Figure 2A fireproof door that is easy to open includes a door frame 1 and a door leaf 2. The door leaf 2 is rotatably arranged on one side of the door frame 1 through a hinge. A baffle 3 is arranged on the side of the door frame 1 close to the room. The baffle 3 makes the cross-sectional shape of the door frame 1 column and the crossbeam L-shaped, so that the door leaf 2 can only be opened toward the stairwell, but not toward the room. A clamping groove 21 is provided on the door frame 1 and on the side of the door frame 1 away from the hinge. The cross-sectional shape of the clamping groove 21 is a right-angled trapezoid. The depth of the side of the clamping groove 21 close to the baffle 3 is greater than the depth of the side of the clamping groove 21 away from the baffle 3. A trapezoidal clamping block 4 is slidably arranged in the clamping groove 21. One side of the clamping block 4 is in contact with the bottom wall of the clamping groove 21, and the other side is flush with the surface of the door frame 1. The door frame 1 is also provided with a locking assembly and an unlocking assembly. The locking assembly is connected to the clamping block 4. The locking assembly is used to drive the clamping block 4 to move away from the baffle 3, so that the clamping block 4 always has a tendency to move toward the shallow end of the clamping groove 21. In the initial position, the clamping block 4 partially protrudes out of the door frame 1 under the action of the locking assembly. The unlocking assembly is connected to the clamping block 4. The unlocking assembly is used to drive the clamping block 4 to move toward the baffle 3, that is, the unlocking assembly drives the clamping block 4 to move toward the deep end of the clamping groove 21.

[0023] When the door leaf 2 is closed, the door leaf 2 rotates to approach the baffle 3. At this time, the side of the door leaf 2 drives the clamping block 4 to move toward the baffle 3, thereby driving the clamping block 4 to move toward the end of the clamping groove 21 with a deeper depth. At this time, the gap between the clamping block 4 and the door leaf 2 has a tendency to increase, and the door leaf 2 can smoothly move to fit with the baffle 3. After the door leaf 2 is closed, because the clamping block 4 always has a tendency to move toward the end of the clamping groove 21 with a shallower depth under the action of the locking assembly, at this time, one side of the clamping block 4 fits with the bottom wall of the clamping groove 21, and the other side fits with the door leaf 2. When it is necessary to open the civil air defense door, the door leaf 2 has a tendency to drive the clamping block 4 to continue to move away from the baffle 3 under the action of friction. At this time, the clamping block 4 clamps the door leaf 2 on the door frame 1, thereby realizing the normal closing of the door leaf 2. At this time, when the door leaf 2 is opened, the unlocking assembly drives the clamping block 4 to move toward the baffle 3, and the gap between the clamping block 4 and the door leaf 2 increases, so that the door leaf 2 can be opened smoothly. Through the cooperation of the locking component and the unlocking component, the door leaf 2 can be locked or opened, avoiding the problem that the civil air defense door cannot be opened due to power failure of the pneumatic device, making it easier to open the civil air defense door.

[0024] Reference Figure 1 and Figure 2, slide grooves 22 parallel to the bottom wall of the clamping groove 21 are provided on both side walls of the clamping groove 21, and sliders (not shown in the figure) adapted to the slide grooves 22 are provided on both sides of the clamping block 4. The cooperation between the slider and the slide groove 22 enables the clamping block 4 to always move in a direction parallel to the bottom wall of the clamping groove 21 when moving in the clamping groove 21, that is, one side of the inclined surface of the clamping block 4 always fits with the bottom wall of the clamping groove 21, ensuring that the contact area between the clamping block 4 and the bottom wall of the clamping groove 21 is large enough, thereby enabling the clamping block 4 to press the door leaf 2 against the door frame 1.

[0025] Reference Figure 1 and Figure 2 The locking assembly includes a spring 5, which is located in the clamping groove 21, and one end of the spring 5 is connected to the inner wall of the clamping groove 21 close to the baffle 3, and the other end of the spring 5 is connected to the clamping block 4. The spring 5 is always in a compressed state, so the spring 5 makes the clamping block 4 always have a tendency to move in the clamping groove 21 toward the side away from the baffle 3. The spring 5 makes the door leaf 2 rotate to fit with the door frame 1, and then the clamping block 4 is clamped on the door leaf 2 to limit the door leaf 2 when the door leaf 2 moves away from the baffle 3. Furthermore, in order to make the clamping block 4 move more smoothly in the clamping groove 21, the edge of the clamping block 4 is rounded.

[0026] Reference Figure 1 and Figure 2 The unlocking assembly includes a magnet block 6. A placement box 23 for storing the magnet block 6 is provided on the side of the door leaf 2 facing the indoor room. The clamping block 4 is made of magnetic conductive metal. A placement rack 7 is provided on the door frame 1 facing the indoor side. The placement rack 7 is opposite to the clamping groove 21. The placement rack 7 is used to accommodate the magnet block 6. When the civil air defense door needs to be opened, the magnet block 6 is taken out of the placement box 23 and placed in the placement rack 7. The magnet block 6 generates an attraction force on the clamping block 4, and drives the clamping block 4 to move along the clamping groove 21 toward the magnet block 6, and then drives the clamping block 4 to move toward the deep end of the clamping groove 21, so that the gap between the clamping block 4 and the door leaf 2 is increased, so that the door leaf 2 can be opened smoothly.

[0027] Furthermore, in order to indicate the position of the placement rack 7, a fluorescent coating is provided on the door frame 1 facing the indoor side and opposite to the clamping groove 21. In case of a fire, there may be a power outage or thick smoke. At this time, the fluorescent coating can well indicate the position of the placement rack 7 and the placement box 23, so that it is convenient for personnel to take out the magnet block 6 from the placement box 23 and put it into the placement rack 7.

[0028] Reference Figure 2An electromagnet 8 is embedded on the side wall of the door leaf 2 and located near the baffle 3 on the side of the clamping groove 21. When the electromagnet 8 is turned on, it can also generate a suction force on the clamping block 4. In normal use scenarios, the opening and closing of the civil air defense door is controlled by opening and closing the electromagnet 8, so that the civil air defense door is normally closed in a normal state.

[0029] The implementation principle of a fire door that is easy to open in an embodiment of the present application is as follows: when the civil air defense door needs to be opened, the door leaf 2 has a tendency to drive the clamping block 4 to continue to move away from the baffle 3 under the action of friction. At this time, the clamping block 4 clamps the door leaf 2 on the door frame 1, thereby closing the door leaf 2. When the door leaf 2 is opened at this time, the clamping block 4 is driven to move toward the baffle 3 through the unlocking component, and the gap between the clamping block 4 and the door leaf 2 is increased, so that the door leaf 2 can be opened smoothly. Through the cooperation of the locking component and the unlocking component, the door leaf 2 can be locked or opened, thereby avoiding the problem that the civil air defense door cannot be opened due to power failure of the pneumatic device, and facilitating the opening of the civil air defense door.

[0030] Finally, it should be noted that in the description of this application, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0031] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fireproof door that is easy to open, comprising a door frame (1) and a door leaf (2) rotatably arranged on the door frame (1) via a hinge, characterized in that: A baffle (3) is arranged on the side of the door frame (1) close to the interior of the room, so that the door leaf (2) can only be opened toward the stairwell; a clamping groove (21) is arranged on the side of the door frame (1) away from the hinge; the depth of the clamping groove (21) on the side close to the baffle (3) is greater than the depth of the side of the clamping groove (21) away from the baffle (3); a trapezoidal clamping block (4) is slidably arranged in the clamping groove (21); a locking assembly and an unlocking assembly are also arranged on the door frame (1); the locking assembly is connected to the clamping block (4) and is used to drive the clamping block (4) to move away from the baffle (3); and the unlocking assembly is connected to the clamping block (4) and is used to drive the clamping block (4) to move toward the baffle (3).

2. The easy-to-open fire door according to claim 1, characterized in that: The side walls on both sides of the clamping groove (21) are provided with sliding grooves (22) parallel to the bottom wall of the clamping groove (21), and the two sides of the clamping block (4) are provided with sliding blocks adapted to the sliding grooves (22).

3. The easy-to-open fire door according to claim 1, characterized in that: The locking assembly comprises a spring (5), wherein the spring (5) is located in the clamping groove (21), and one end of the spring (5) is connected to the inner wall of the clamping groove (21), and the other end is connected to the clamping block (4), and the spring (5) enables the clamping block (4) to always have a tendency to move away from one side of the baffle (3).

4. The easy-to-open fire door according to claim 1, characterized in that: The clamping block (4) is provided with rounded corners.

5. The easy-to-open fire door according to claim 1, characterized in that: The unlocking assembly comprises a magnet block (6); a storage box (23) for storing the magnet block (6) is provided on the side of the door leaf (2) facing the interior of the room; and the clamping block (4) is made of magnetic conductive metal.

6. The easy-to-open fire door according to claim 5, characterized in that: A placement rack (7) is provided on the door frame (1) at a position opposite to the clamping groove (21).

7. The easy-to-open fire door according to claim 1, characterized in that: An electromagnet (8) is embedded on the door leaf (2) and on a side wall of the clamping groove (21) close to the baffle (3).

8. The easy-to-open fire door according to claim 7, characterized in that: The door frame (1) is covered with a fluorescent coating around the placement rack (7), and the door leaf (2) is also covered with a fluorescent coating around the placement box (23).

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