Fireproof door convenient to install

Abstract

The fireproof door convenient to install comprises a door frame, a sealing expansion rubber strip is installed on the inner side of the door frame, an installation hole is formed in the surface of the inner side of the door frame, fireproof door leaves are movably connected to the two sides of the interior of the door frame, and a lock is installed on one side of each fireproof door leaf. According to the fireproof door convenient to install, through cooperative use of the inserting rods, the racks, the telescopic rods, the springs, the gears, the transmission shafts and the rotating handles, the fireproof door leaf is placed in the door frame during installation, a worker rotates the rotating handles to drive the gears to rotate, the racks are driven to ascend and descend under the meshing effect of the gears, and the inserting rods are retracted into the inner side of the fireproof door leaf; and after a worker aligns the inserting rod with the mounting hole in the door frame, the rotating handle is loosened, so that the inserting rod is ejected out and inserted into the mounting hole under the action of the spring, the mounting work of the fireproof door leaf is completed, the whole mounting process can be completed without auxiliary tools, and the dismounting and mounting mode is time-saving, labor-saving and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field related to fire doors, in particular to a fire door which is easy to install. Background Art

[0002] A fire door refers to a door that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time. It is a fire-resistant partition with a certain fire resistance installed in fire compartments, evacuation stairwells, vertical shafts, etc. It is specifically used to isolate fire sources in residential buildings and plays a huge role in fire fighting. Once a fire occurs, people can get a chance to escape through fire doors. In addition to the functions of ordinary doors, fire doors can also prevent the spread of fire and smoke. They can prevent the spread of fire within a certain period of time and ensure the evacuation of personnel.

[0003] However, the existing fire doors need to be installed with the help of other installation tools during the installation process, and the installation process is cumbersome. The staff needs to spend a long time to install and fix the fire doors. The installation is inconvenient, time-consuming, labor-intensive, and has poor practicality. Therefore, the present application provides a fire door that is easy to install to meet the needs. Utility Model Content

[0004] The purpose of the utility model is to provide a fireproof door which is easy to install, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fireproof door that is easy to install, comprising a door frame, a sealing expansion strip is installed on the inner side of the door frame, an installation hole is opened on the inner surface of the door frame, both sides of the interior of the door frame are movably connected with fireproof door leaves, a lock is installed on one side of the fireproof door leaf, a sealing strip is attached to the outer side of the fireproof door leaf, an insertion rod is movably connected to the interior of the fireproof door leaf, a rack is fixed under the insertion rod, a telescopic rod is fixed under the rack, a spring is sleeved on the outer side of the telescopic rod, a gear is movably connected to one side of the rack, a transmission shaft is fixed on one side of the gear, and a turning handle is fixed to one end of the transmission shaft.

[0006] Preferably, the sealing expansion strip is connected to the door frame by adhesive bonding, and the sealing expansion strip matches the size of the door frame.

[0007] Preferably, the interior of the fireproof door leaf is filled with sound insulation cotton, and the size of the sound insulation cotton is consistent with the internal size of the fireproof door leaf.

[0008] Preferably, the sealing strip is connected to the outer side of the fire door leaf by adhesive bonding, and the sealing strip is used in conjunction with a sealing expansion strip.

[0009] Preferably, the insertion rod forms a telescopic structure with the fire door leaf through a telescopic rod, and the insertion rod is symmetrically arranged with respect to the central axis of the fire door leaf.

[0010] Preferably, the rack and the gear are meshingly connected, and the rack and the gear are used in conjunction with each other.

[0011] Preferably, the gear forms a rotating structure with the fire door leaf through a transmission shaft, and the transmission shaft coincides with the central axis of the handle.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. This fire door that is easy to install uses a plug rod, a rack, a telescopic rod, a spring, a gear, a transmission shaft and a turn handle. During installation, the fire door leaf is placed in the door frame, and the staff turns the turn handle to drive the gear to rotate. Under the meshing action of the gear, the rack is driven up and down, and the plug rod is retracted into the inner side of the fire door leaf. After the staff aligns the plug rod with the installation hole inside the door frame, the turn handle is released, so that the plug rod is pushed out and inserted into the installation hole under the action of the spring, thereby completing the installation of the fire door leaf. The entire installation process can be completed without the aid of auxiliary tools, and the disassembly and assembly method is time-saving, labor-saving and easy to operate;

[0014] 2. The fireproof door is easy to install. The sealing expansion strip and the sealing strip are arranged. The sealing strip improves the sealing between the door frame and the fireproof door leaf. When a fire occurs, the sealing expansion strip expands to fill the gap of the fireproof door leaf, thereby isolating the thick smoke caused by the fire and improving the safety of the device.

[0015] 3. This fire door is easy to install. Through the setting of sound insulation cotton, after the fire door leaf is closed in daily use, the sound insulation cotton can improve the sound insulation effect of the device, and it is also highly practical in daily use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the door frame of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the fireproof door leaf of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the plug rod of the utility model;

[0020] Figure 5 It is an enlarged view of the structure shown in Figure A of the present utility model.

[0021] In the figure: 1. Door frame; 2. Sealing expansion strip; 3. Mounting hole; 4. Fireproof door leaf; 5. Sound insulation cotton; 6. Lock; 7. Sealing strip; 8. Insert rod; 9. Rack; 10. Telescopic rod; 11. Spring; 12. Gear; 13. Drive shaft; 14. Turn handle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3 The utility model provides a technical solution: a fire door that is easy to install, including a door frame 1, a sealing expansion strip 2 is installed on the inner side of the door frame 1, the sealing expansion strip 2 is connected to the door frame 1 by adhesive, the size of the sealing expansion strip 2 is consistent with the size of the door frame 1, when a fire occurs, the sealing expansion strip 2 expands to fill the gap of the fire door leaf 4, and isolates the thick smoke caused by the fire, the inner surface of the door frame 1 is provided with a mounting hole 3, the inner sides of the door frame 1 are movably connected with the fire door leaf 4, and the fireproof The interior of the door leaf 4 is filled with sound insulation cotton 5, and the size of the sound insulation cotton 5 is consistent with the internal size of the fire door leaf 4. After the fire door leaf 4 is closed in daily use, the sound insulation cotton 5 can improve the sound insulation effect of the device. A lock 6 is installed on one side of the fire door leaf 4. A sealing strip 7 is attached to the outer side of the fire door leaf 4. The sealing strip 7 is connected to the outer side of the fire door leaf 4 by adhesive bonding. The sealing strip 7 is used in conjunction with the sealing expansion strip 2. The setting of the sealing strip 7 improves the sealing between the door frame 1 and the fire door leaf 4.

[0024] See also Figure 3-5 , the fire door leaf 4 is movably connected with a plug rod 8, and the plug rod 8 forms a telescopic structure with the fire door leaf 4 through a telescopic rod 10. The plug rod 8 is symmetrically arranged with the central axis of the fire door leaf 4. The plug rod 8 can be inserted into the mounting hole 3 under the action of a spring 11, and will not be detached from the mounting hole 3 when in use. A rack 9 is fixed below the plug rod 8, and the rack 9 is meshed with a gear 12. The rack 9 and the gear 12 are used in conjunction with each other, and the rack 9 is driven to rise and fall under the meshing action of the gear 12, so that the plug rod 8 can be telescoped, and a telescopic rod 10 is fixed below the rack 9, and a spring 11 is sleeved on the outer side of the telescopic rod 10. One side of the rack 9 is movably connected with a gear 12, and a transmission shaft 13 is fixed to one side of the gear 12. The gear 12 forms a rotating structure with the fire door leaf 4 through the transmission shaft 13, and the transmission shaft 13 coincides with the central axis of the turning handle 14. The staff turns the turning handle 14 to drive the gear 12 to rotate, which is convenient for installation work, and a turning handle 14 is fixed to one end of the transmission shaft 13.

[0025] Working principle: When using the fire door that is easy to install, the staff first places the fire door leaf 4 in the door frame 1, and then turns the handle 14 to drive the gear 12 to rotate. Under the meshing action of the gear 12, the rack 9 is driven up and down, and the plug rod 8 is retracted into the inner side of the fire door leaf 4. After the staff aligns the plug rod 8 with the mounting hole 3 inside the door frame 1, the handle 14 is released, so that the plug rod 8 is pushed out and inserted into the mounting hole 3 under the action of the spring 11, thereby completing the installation of the fire door leaf 4. Secondly, when a fire occurs, the sealing expansion strip 2 expands to fill the gap in the fire door leaf 4 and isolate the thick smoke caused by the fire. The material of the sealing expansion strip 2 is an expandable graphite sealing strip. In this way, the use process of the fire door that is easy to install is completed.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fireproof door that is easy to install, comprising a door frame (1), characterized in that: A sealing expansion strip (2) is installed on the inner side of the door frame (1), and a mounting hole (3) is opened on the inner surface of the door frame (1). Both sides of the interior of the door frame (1) are movably connected with fireproof door leaves (4), and a lock (6) is installed on one side of the fireproof door leaf (4). A sealing strip (7) is attached to the outer side of the fireproof door leaf (4). The interior of the fireproof door leaf (4) is movably connected with an insertion rod (8), a rack (9) is fixed below the insertion rod (8), a telescopic rod (10) is fixed below the rack (9), and a spring (11) is sleeved on the outer side of the telescopic rod (10). A gear (12) is movably connected to one side of the rack (9), a transmission shaft (13) is fixed to one side of the gear (12), and a turning handle (14) is fixed to one end of the transmission shaft (13).

2. A fire door that is easy to install according to claim 1, characterized in that: The sealing expansion strip (2) is connected to the door frame (1) by adhesive bonding, and the size of the sealing expansion strip (2) matches that of the door frame (1).

3. The fire door that is easy to install according to claim 1, characterized in that: The interior of the fireproof door leaf (4) is filled with sound insulation cotton (5), and the size of the sound insulation cotton (5) is consistent with the internal size of the fireproof door leaf (4).

4. The fire door that is easy to install according to claim 1, characterized in that: The sealing strip (7) is connected to the outer side of the fireproof door leaf (4) by adhesive bonding, and the sealing strip (7) is used in conjunction with the sealing expansion strip (2).

5. The fire door that is easy to install according to claim 1, characterized in that: The insertion rod (8) forms a telescopic structure with the fire door leaf (4) via a telescopic rod (10), and the insertion rod (8) is symmetrically arranged with respect to the central axis of the fire door leaf (4).

6. The fire door that is easy to install according to claim 1, characterized in that: The rack (9) and the gear (12) are meshingly connected, and the rack (9) and the gear (12) are used in conjunction with each other.

7. The fire door that is easy to install according to claim 1, characterized in that: The gear (12) forms a rotating structure with the fireproof door leaf (4) via a transmission shaft (13), and the transmission shaft (13) coincides with the central axis of the turning handle (14).

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