Fabricated fireproof door with fixing pieces

Abstract

The utility model discloses an assembly type fireproof door with fixing pieces, which belongs to the technical field of fireproof doors and comprises a fireproof door body and a door frame, the fireproof door body is hinged to the left edge of the door frame through hinges, the door frame is fixedly mounted on the edge of a wall through expansion bolts, and a door lock is arranged on the front side of the fireproof door body. A door closer is fixedly mounted above the fireproof door body, a door closer connecting rod is connected and mounted to the front side of the door frame, fixing piece shells are fixedly mounted on the left side and the right side of the outer side of the door frame, clamping blocks are arranged in the fixing piece shells in the front-back direction, embedded parts are packaged in the edges of the wall body through cement, and clamping grooves are formed in the embedded parts; and the clamping blocks are connected to the interiors of the clamping grooves to form reinforcing structures. The fabricated fireproof door with the fixing piece has the advantages of being convenient and efficient to install and stable and reliable in connection, is suitable for installation of fireproof doors of various buildings, and effectively guarantees fireproof safety of the buildings.

Description

Technical Field

[0001] This utility model relates to the field of fire door technology, specifically to an assembled fire door with fixing components. Background Technology

[0002] Fire doors are a crucial line of defense for building fire safety, typically installed in stairwells, elevator lobbies, and pipe shafts. They consist of fire-resistant panels, fire-resistant glass, and fire-resistant hardware. In the event of a fire, their fire-resistant and heat-insulating properties effectively prevent the spread of fire and smoke, buying valuable time for evacuation and fire rescue. Based on their fire resistance rating, fire doors are classified into three levels: A, B, and C, with different types installed according to specific needs in different locations. Their reliable fire resistance greatly reduces the hazards of fire and protects the lives and property within buildings. However, the fasteners of existing prefabricated fire doors still have certain problems in use:

[0003] For example, a prefabricated fire door fastener with application number 202220867085.3 has the following technical solution: it includes a steel fire door, a door frame, an external mechanism, and three sets of fixing mechanisms. The door frame is arranged in an inverted U-shape, and one side of the door frame is hinged to one side of the steel fire door. The external mechanism includes a top subframe and two side subframes, which are respectively fixed to the top and two sides of the door frame. The three sets of fixing mechanisms are respectively set on the top subframe and the two side subframes. However, the existing fire door fasteners require repeated alignment of screw holes and tightening with various tools during installation, which is cumbersome and time-consuming. If the wall surface is uneven or the horizontal benchmark is not accurately found in the early stage of installation, the fasteners are difficult to adjust the height balance flexibly, resulting in problems such as tilting and difficulty in opening and closing the fire door after installation.

[0004] In view of this, in-depth research was conducted on the above issues, which led to the creation of this case.

[0005] To address the aforementioned issues, an innovative design was developed based on the existing fire door fasteners. Utility Model Content

[0006] The purpose of this utility model is to provide a prefabricated fire door with fixing components, so as to solve the problem mentioned in the background art that the installation steps of the fixing components of the prefabricated protective door are troublesome and it is inconvenient to adjust the height balance.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An assembled fire door with fasteners includes a fire door body and a door frame. The fire door body is hinged to the left edge of the door frame, and the door frame is fixedly installed at the edge of the wall. A door lock is provided on the front side of the fire door body, and a door closer is fixedly installed on the top of the fire door body. The door closer connecting rod is connected and installed on the front side of the door frame. Fastener housings are fixedly installed on the left and right sides of the outer side of the door frame, and locking blocks are provided at the front and back inside the fastener housings. An embedded part is cement-sealed inside the wall edge, and the embedded part has a locking groove inside. The locking blocks are connected to the locking groove to form a reinforcement structure.

[0009] Preferably, the door frame is fixedly welded with a fixing shell at the top and bottom positions on both the left and right sides, and a rotating head is provided on the front side of the fixing shell.

[0010] By adopting the above technical solution, the fixed components housings welded to the upper and lower positions on both sides of the door frame and the rotating head set on the front side increase the number of connection points between the fixed components and the wall, making the connection between the door frame and the wall more stable. The rotating head provides an operating position for subsequent adjustment of the threaded rod, making it convenient for construction personnel to install and adjust.

[0011] Preferably, a threaded rod is connected and installed on the rear side of the rotating head, and the thread directions of the front and rear sides of the threaded rod are opposite, and the rear end of the threaded rod is rotatably connected to the rear side of the inner shell of the fixing component.

[0012] The above technical solution uses a threaded rod connected to the rear side of the rotating head, with the threads on the front and rear sides of the threaded rod having opposite directions. This design allows the moving blocks on the front and rear sides to move synchronously in opposite directions through threaded transmission when the threaded rod is rotated, thus facilitating the adjustment of the position of the locking block.

[0013] Preferably, the outer front and rear sides of the threaded rod are threaded with movable blocks, and the movable blocks are slidably connected to the bottom groove of the fixing component housing via a slider.

[0014] The above technical solution involves a movable block with threads connecting the front and rear sides of the outer side of the threaded rod. The movable block is slidably connected to the bottom groove of the fixed part housing via a slider. The cooperation between the slider and the groove ensures the stability of the movable block during movement, preventing it from shifting or shaking, and ensuring that the snap-fit ​​block can accurately align with the snap-fit ​​groove of the embedded part.

[0015] Preferably, a snap-fit ​​block is fixedly installed on the outside of the movable block, and the snap-fit ​​block constitutes a forward and backward movable structure.

[0016] By adopting the above technical solution, the snap-fit ​​block fixedly installed on the outside of the moving block forms a forward and backward moving structure, which allows the snap-fit ​​block to flexibly enter and exit the snap-fit ​​groove, making it convenient to adjust and fix the position when installing fire doors, thus enhancing the practicality and flexibility of the fastener.

[0017] Preferably, the embedded part has a long hollow structure, and the front and rear sides of the embedded part are provided with snap-fit ​​grooves.

[0018] Using the above technical solution, the embedded part has a long hollow structure, and the front and rear sides of the interior are provided with snap-fit ​​grooves. The long hollow structure increases the contact area between the embedded part and the cement in the wall, and improves the fixing effect of the embedded part in the wall. The snap-fit ​​grooves on the front and rear sides provide more snap-fit ​​position options for the snap-fit ​​block, further enhancing the stability of the connection between the door frame and the wall.

[0019] Preferably, the snap-fit ​​blocks are moved back and forth and connected to the snap-fit ​​groove to form a fixed structure, and the internal cavity structure of the embedded part is fixed by cement encapsulation.

[0020] Using the above technical solution, the snap-fit ​​blocks move back and forth and are connected to the snap-fit ​​groove to form a fixed structure. The internal cavity structure of the embedded part is fixed by cement sealing. This fixing method forms a reliable connection between the door frame and the wall, effectively preventing the fire door from loosening or shifting during use, and ensuring the normal use and fire resistance performance of the fire door.

[0021] Compared with the prior art, the beneficial effects of this utility model are: the assembled fire door with fixing components,

[0022] 1. Convenient and efficient installation: Through the cooperation of the rotating head, threaded rod, moving block and snap-fit ​​block, the construction personnel can easily adjust the position of the snap-fit ​​block without repeatedly aligning the screw holes and using a variety of complicated tools, which greatly simplifies the installation process and improves installation efficiency.

[0023] 2. Stable and reliable connection: The door frame and the wall are connected by embedded parts and snap-fit ​​blocks. The embedded parts are fixed by cement sealing, and the snap-fit ​​blocks can be adapted to the installation height and fit tightly with the snap-fit ​​groove, making the fire door more stable after installation and avoiding problems such as tilting and difficulty in opening and closing, ensuring that the fire door can effectively play its fire protection role in the event of a fire. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the fire door body structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the side structure of the fixing component housing of this utility model;

[0027] Figure 4 This is a schematic diagram of the outer shell structure of the fastener of this utility model;

[0028] Figure 5This is a cross-sectional view of the inner side of the housing of the fastener of this utility model;

[0029] Figure 6 This is a schematic diagram of the outer side structure of the fixing component housing of this utility model.

[0030] In the diagram: 1. Fire door body; 2. Door frame; 3. Wall; 4. Door lock; 5. Hinge; 6. Door closer; 7. Fixture housing; 8. Rotary head; 9. Threaded rod; 10. Moving block; 11. Snap-fit ​​block; 12. Embedded part; 13. Snap-fit ​​groove. Detailed Implementation

[0031] 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.

[0032] Please see Figure 1-6 This utility model provides a technical solution:

[0033] A prefabricated fire door with fasteners includes a fire door body 1 and a door frame 2. The fire door body 1 is hinged to the left edge of the door frame 2 via a hinge 5, and the door frame 2 is fixedly installed at the edge of the wall 3 via expansion bolts. A door lock 4 is provided on the front side of the fire door body 1, and a door closer 6 is fixedly installed on the top of the fire door body 1. The door closer 6 is connected to the front side of the door frame 2 via a connecting rod. Fastener housings 7 are fixedly installed on the left and right sides of the outer side of the door frame 2, and locking blocks 11 are provided at the front and back inside the fastener housings 7. An embedded part 12 is cement-encapsulated inside the edge of the wall 3, and a locking groove 13 is provided inside the embedded part 12. The locking blocks 11 are connected to the locking groove 13 to form a reinforcement structure.

[0034] The door frame 2 has fixedly welded housings 7 on both the left and right sides, top and bottom. Each fixed housing 7 has a rotating head 8 on its front side. A threaded rod 9 is connected to the rear side of each rotating head 8, with opposite thread directions on the front and rear sides. The rear end of the threaded rod 9 is rotatably connected to the rear side inside the fixed housing 7. Moving blocks 10 are threadedly connected to the front and rear sides of the outer side of the threaded rod 9. The moving blocks 10 are slidably connected to a groove on the bottom surface inside the fixed housing 7 via a slider. A locking block 11 is fixedly installed on the outer side of the moving blocks 10, forming a forward and backward moving structure. The multiple fixed housings 7 on the left and right sides, top and bottom, and rotating heads 8 on the front increase the connection points between the door frame 2 and the wall 3, improving the overall stability of the connection. The rotating heads 8 facilitate operation by construction personnel, allowing adjustment of the fixed structure by rotating the rotating heads 8, reducing costs. The installation is complex because the threaded rod 9 connected to the rear of the rotating head 8 has opposite threads on the front and rear sides, and its rear end is rotatably connected to the rear side inside the housing 7 of the fixing part. This special thread design allows the rotating rod 9 to simultaneously drive the moving blocks 10 on both the front and rear sides to move in opposite directions, achieving precise adjustment of the position of the snap-fit ​​block 11. The moving blocks 10 connected to the front and rear threads on the outer side of the threaded rod 9 are slidably connected to the sliding groove on the bottom surface of the housing 7 of the fixing part through a slider. The cooperation between the slider and the sliding groove ensures the stability of the moving blocks 10 during movement, avoiding deviation or jamming, and ensuring that the snap-fit ​​block 11 can accurately align with the snap-fit ​​groove 13 on the embedded part 12, thus improving the installation accuracy. The snap-fit ​​block 11 fixedly installed on the outer side of the moving block 10 forms a front-to-back moving structure. The movement of the moving block 10 allows the snap-fit ​​block 11 to be flexibly connected according to the position of the embedded part 12.

[0035] The embedded part 12 has a long, hollow structure, and the front and rear sides of the embedded part 12 are provided with snap-fit ​​grooves 13. The snap-fit ​​blocks 11 move back and forth and are connected to the snap-fit ​​grooves 13 to form a fixed structure. The hollow structure inside the embedded part 12 is fixed by sealing with cement. The long, hollow structure of the embedded part 12 increases the contact area between the embedded part 12 and the cement in the wall 3, making its fixation in the wall 3 more secure. The snap-fit ​​grooves 13 on the front and rear sides are for snapping... The connecting block 11 provides more snap-fit ​​options, further improving the reliability of the connection between the door frame 2 and the wall 3. The snap-fit ​​block 11 moves back and forth and is connected to the inside of the snap-fit ​​groove 13 to form a fixed structure. The embedded part 12 is provided with cement injection holes. The internal cavity structure of the embedded part 12 is fixed by cement sealing. This fixing method makes the connection between the door frame 2 and the wall 3 tight and stable, effectively preventing the fire door from loosening or shifting during long-term use, and ensuring the normal use and fire resistance performance of the fire door.

[0036] Working principle:

[0037] During assembly, the following steps are taken: First, an opening is chiseled into the inner edge of the wall 3 near the door frame. The embedded part 12 is then embedded into the opening according to the design requirements. Cement is used to initially seal and fix the outer side of the embedded part 12. The door frame 2 is then horizontally fitted inside the opening of the embedded part 12 according to the position of the snap-fit ​​block 11 on the outer shell 7 of the fixing part. The snap-fit ​​blocks 11 are snapped close to each other in the middle of the snap-fit ​​groove 13. The door frame 2 is an assembly type. The construction worker rotates the rotating head 8 on the front side of the fixing part outer shell 7. The rotating head 8 drives the threaded rod 9 to rotate. Since the front and rear threads of the threaded rod 9 are opposite, the moving block 10 connected to the front and rear threads on its outer side will rotate on the threaded rod 9. Under the rotation, it moves synchronously in the opposite direction along the sliding groove on the bottom surface of the fixed part housing 7. The snap-fit ​​block 11 fixedly installed on the outside of the moving block 10 moves with the moving block 10. When the snap-fit ​​block 11 moves to the position corresponding to the snap-fit ​​groove 13 inside the embedded part 12, the snap-fit ​​block 11 enters the snap-fit ​​groove 13, completing the further reinforcement connection between the door frame 2 and the wall 3. The internal space of the embedded part 12 is sealed with cement. Finally, the door frame 2 is reinforced and assembled at the edge of the wall 3 with expansion bolts. In daily use, the door closer 6 ensures that the fire door can automatically close after being opened. The door lock 4 is used to control the opening and closing of the door. The fire door body 1 is connected to the door frame 2 through the hinge 5 to realize the normal opening and closing function.

[0038] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated fire door with fasteners, comprising a fire door body (1) and a door frame (2), wherein the fire door body (1) is hinged to the left edge of the door frame (2) via a hinge (5), and the door frame (2) is fixedly installed at the edge of a wall (3), a door lock (4) is provided on the front side of the fire door body (1), and a door closer (6) is fixedly installed on the top of the fire door body (1), and the connecting rod of the door closer (6) is connected and installed on the front side of the door frame (2), characterized in that: The door frame (2) is fixedly installed with a fixing part shell (7) on the left and right sides outside, and a clamping block (11) is arranged inside the fixing part shell (7) front and back, the cement of the wall body (3) edge inside is packaged with a pre-buried part (12), the clamping groove (13) is arranged inside the pre-buried part (12), and the clamping block (11) is connected in the clamping groove (13) to form a reinforcing structure.

2. The assembled fire door with a fixing member according to claim 1, characterized in that: The door frame (2) is fixedly welded with a fixing part shell (7) on the left and right sides up and down, and a rotating head (8) is arranged on the front side of the fixing part shell (7).

3. The assembled fire door with a fixing member according to claim 2, characterized in that: The rotating head (8) is connected and installed with a threaded rod (9) on the rear side, the threaded direction of the threaded rod (9) is opposite on the front and back sides, and the rear end of the threaded rod (9) is rotatably connected to the rear side inside the fixing part shell (7).

4. The assembled fire door with a fixing member according to claim 3, characterized in that: The threaded rod (9) is externally and front and back connected with a moving block (10), and the moving block (10) is slidably connected to the bottom surface sliding groove inside the fixing part shell (7) through a sliding block below.

5. The prefabricated fire door with a fixing member according to claim 4, characterized in that: The moving block (10) is fixedly installed with a clamping block (11) on the outside, and the clamping block (11) forms a front and back moving structure.

6. The prefabricated fire door with a fixing member according to claim 1, characterized in that: The pre-buried part (12) is a long cavity structure, and the clamping groove (13) is arranged on the front and back sides inside the pre-buried part (12).

7. The prefabricated fire door with a fixing member according to claim 6, characterized in that: The clamping block (11) is movably connected in the clamping groove (13) to form a fixing structure, and the cavity structure inside the pre-buried part (12) is fixed by cement packaging.

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