Embedded fire exit door

Abstract

The utility model discloses a pre-embedded type fire exit door which comprises a door frame and a door body, the door body is arranged on the inner side of the door frame, a hinge is hinged to the surface of one side of the door body, installation grooves are formed in the upper end and the lower end of the surface of one side of the door frame, and grooves are formed in the upper surface and the lower surface of each installation groove. A groove is formed in the bottom end of the door frame, a clamping block is slidably connected to the interior of the groove, a telescopic rod structure is arranged between the clamping block and the bottom end of the interior of the groove, and a spring structure is arranged on the surface of the telescopic rod structure. The hinge of the fire exit door body is clamped in through the mounting groove, after the hinge is clamped in, force facing the inner side of the mounting groove is applied to the clamping block through the spring structure and the telescopic rod structure, the hinge is clamped on the inner side of the door frame and prevented from sliding out, the two ends of the clamping block can be directly welded after mounting is completed, and therefore the pre-embedded mounting construction mode is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire doors, and in particular relates to a pre-buried fire door. Background Art

[0002] In recent years, with the improvement of people's living standards, a large number of buildings are put into use every year, and a large number of doors are used in buildings. Due to the increasing number of various electrical appliances, circuits are prone to fire after aging, leading to fires. Fire prevention facilities have been added in many occasions, such as adding fire hydrants and fire extinguishers, and some places use fire room doors instead of ordinary doors.

[0003] Embedded fire doors refer to a fire door installation method in which the door frame and door leaf of the fire door are embedded in the wall together with the building structure during the design and construction stage of the building. Embedded fire doors can be divided into two types: embedded in the groove and embedded in the pile.

[0004] At present, the embedded fire doors are usually installed during pouring. When the fire door is installed after embedding the door frame, several fixed structures are required to fix the hinges and the like on the inside of the door frame. This construction method is relatively complicated and has certain limitations when used. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a pre-buried fire door to solve the problem mentioned in the above background technology that the current pre-buried fire door is usually installed during pouring. When the construction method of pre-buried door frame first and then installed the fire door is adopted, several fixing structures are required to fix the hinges and the like on the inner side of the door frame. This construction method is relatively complicated and has certain limitations when used.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pre-embedded fire door, comprising a door frame and a door body, the door body is arranged on the inner side of the door frame, a hinge is hinged on one side surface of the door body, installation grooves are provided at the upper and lower ends of one side surface of the door frame, grooves are provided on the upper and lower surfaces of the installation groove, a clamping block is slidably connected inside the groove, a telescopic rod structure is arranged between the clamping block and the inner bottom end of the groove, a spring structure is arranged on the surface of the telescopic rod structure, limiting grooves are provided on both side surfaces of the groove, the limiting rods are fixedly connected inside the limiting grooves, and the limiting blocks are slidably connected on the surface of the limiting rods.

[0007] Preferably, the limiting blocks are respectively fixedly connected to one end of the two side surfaces of the clamping block.

[0008] Preferably, alloy steel is fixedly welded to the top of the block.

[0009] Preferably, a first handle is provided on the surface of the door body.

[0010] Preferably, a fire protection window is installed at the inner upper end of the door body.

[0011] Preferably, a second handle is installed on the fire window.

[0012] Preferably, a casting groove is provided on the outer surface of the door frame.

[0013] Compared with the prior art, the utility model provides a pre-buried fire door, which has the following beneficial effects:

[0014] 1. The utility model provides a card block and an installation groove and other structures. When in use, after the door frame is pre-buried and poured for construction and installation, the hinge of the fire door body is inserted into the installation groove. After the hinge is inserted, the card block is exerted with a force toward the inside of the installation groove by the spring structure and the telescopic rod structure, and the hinge is clamped to the inside of the door frame to prevent the hinge from sliding out. After the installation is completed, the two ends of the card block can be directly welded to realize the construction method of pre-buried installation, which effectively avoids the current pre-buried fire door. When the installation is completed, the installation is usually completed during pouring. When the construction method of pre-buried door frame first and then installing the fire door is adopted, several fixed structures are required to fix the hinge and the like on the inside of the door frame. This construction method is relatively complicated and has certain limitations when used;

[0015] 2. The utility model provides a first handle and a second handle, and the first handle facilitates opening the fire door body, and the second handle facilitates opening the fire window. The provided casting trough facilitates pre-embedded casting of the door frame of the fire door. The provided alloy steel effectively prevents the hinge of the door body from wearing and breaking the card block when installing the fire door body, and increases the stability of the card block material structure;

[0016] 3. The utility model provides a limit block, a limit rod and a limit groove. When in use, the limit block slides on the surface of the limit rod, thereby realizing the sliding of the limit block in the inner position of the limit groove, limiting the sliding distance of the limit block, and finally achieving the purpose of limiting the sliding distance of the card block, effectively preventing the problem of structural damage caused by the card block sliding overtravel; BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a structural schematic diagram of a pre-buried fire door proposed by the utility model;

[0019] Figure 2 This is a front view of a pre-buried fire door proposed by the utility model;

[0020] Figure 3 A cross-sectional view of an installation groove in a pre-buried fire door proposed by the utility model;

[0021] Figure 4 A pre-buried fire door proposed by the utility model Figure 3 The enlarged view of point A in the middle;

[0022] In the figure: 1. door frame; 2. door body; 3. casting groove; 4. first handle; 5. fire window; 6. second handle; 7. installation groove; 8. groove; 9. block; 10. alloy steel; 11. telescopic rod structure; 12. spring structure; 13. limit groove; 14. limit rod; 15. limit block. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-4 The utility model provides a technical solution: a pre-buried fire door, including a door frame 1 and a door body 2, the inner side of the door frame 1 is provided with the door body 2, one side surface of the door body 2 is hinged with a hinge, the upper and lower ends of the one side surface of the door frame 1 are provided with mounting grooves 7, the upper and lower surfaces of the mounting groove 7 are provided with grooves 8, the inner part of the groove 8 is slidably connected with a clamping block 9, a telescopic rod structure 11 is provided between the clamping block 9 and the inner bottom end of the groove 8, a spring structure 12 is provided on the surface of the telescopic rod structure 11, and the two side surfaces of the groove 8 are provided with limiting grooves 13, the inner part of the limiting groove 13 is fixedly connected with a limiting rod 14, and the surface of the limiting rod 14 is slidably connected with a limiting block 15. Through the provided structures such as the clamping block 9 and the mounting groove 7, When in use, after the door frame 1 is pre-buried and poured for construction and installation, the hinge of the fire door body 2 is inserted into the installation groove 7. After the hinge is inserted, the clamping block 9 will be exerted with a force toward the inside of the installation groove 7 by the spring structure 12 and the telescopic rod structure 11, and the hinge will be clamped on the inside of the door frame 1 to prevent the hinge from slipping out. After the installation is completed, the two ends of the clamping block 9 can be directly welded to realize the pre-buried installation construction method, which effectively avoids the current pre-buried fire door during installation, which is usually installed during pouring. When the construction method of pre-buried door frame 1 first and then installing the fire door is adopted, several fixed structures are required to fix the hinge and the like on the inside of the door frame 1. This construction method is relatively complicated and has certain limitations when used.

[0025] In the utility model, preferably, the limit blocks 15 are respectively fixedly connected to one end of the two side surfaces of the block 9, and through the set limit blocks 15, limit rods 14 and limit grooves 13, when in use, the limit blocks 15 slide on the surface of the limit rods 14, thereby realizing the sliding of the limit blocks 15 in the internal position of the limit grooves 13, limiting the sliding distance of the limit blocks 15, and finally achieving the purpose of limiting the sliding distance of the block 9, effectively preventing the problem of structural damage caused by the block 9 sliding overtravel.

[0026] In the utility model, preferably, the top of the block 9 is fixedly welded with alloy steel 10. The alloy steel 10 can effectively prevent the hinge of the door body 2 from wearing and breaking the block 9 when installing the fire door body 2, thereby increasing the stability of the material structure of the block 9.

[0027] In the present invention, preferably, a first handle 4 is provided on the surface of the door body 2 .

[0028] In the present invention, preferably, a fire window 5 is installed at the inner upper end of the door body 2 .

[0029] In the present utility model, preferably, a second handle 6 is installed on the fire window 5. By setting the first handle 4 and the second handle 6, the fire door body 2 can be opened conveniently through the first handle 4, and the fire window 5 can be opened conveniently through the second handle 6.

[0030] In the present invention, preferably, a casting groove 3 is provided on the outer surface of the door frame 1, and the casting groove 3 is provided to facilitate the pre-embedded casting construction of the door frame 1 of the fire door through the casting groove 3.

[0031] The working principle and use process of the utility model are as follows: when in use, through the provided card block 9 and installation groove 7 and other structures, after the door frame 1 is pre-buried and cast for construction and installation, the hinge of the fire door body 2 is inserted through the installation groove 7. After the hinge is inserted, the card block 9 will be applied with a force toward the inside of the installation groove 7 by the spring structure 12 and the telescopic rod structure 11, so that the hinge is stuck to the inside of the door frame 1 to prevent the hinge from sliding out. After the installation is completed, the two ends of the card block 9 can be directly welded to realize the construction method of pre-buried installation, which effectively avoids the current pre-buried fire door. When the installation is completed, the installation is usually completed during casting. When the construction method of pre-buried door frame 1 and then installing the fire door is adopted, several fixing structures are required to fix the hinge and the like on the inside of the door frame 1. This construction method is relatively complicated and has certain limitations when used. By means of the first handle 4 and the second handle 6, the fire door body 2 can be opened conveniently through the first handle 4, and the fire window 5 can be opened conveniently through the second handle 6. By means of the casting trough 3, it is convenient to pre-embed the door frame 1 of the fire door through the casting trough 3. By means of the alloy steel 10, when installing the fire door body 2, the hinge of the door body 2 can be effectively prevented from wearing and breaking the block 9, thereby increasing the stability of the material structure of the block 9. By means of the limit block 15, the limit rod 14 and the limit groove 13, when in use, the limit block 15 slides on the surface of the limit rod 14, thereby realizing the sliding of the limit block 15 in the internal position of the limit groove 13, limiting the sliding distance of the limit block 15, and finally achieving the purpose of limiting the sliding distance of the block 9, effectively preventing the problem of structural damage caused by the overtravel of the block 9.

[0032] 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 pre-buried fire door, comprising a door frame (1) and a door body (2), characterized in that: A door body (2) is arranged on the inner side of the door frame (1), and a hinge is hinged on one side surface of the door body (2). Installation grooves (7) are provided at both upper and lower ends of one side surface of the door frame (1), and grooves (8) are provided on the upper and lower surfaces of the installation groove (7). A clamping block (9) is slidably connected inside the groove (8), and a telescopic rod structure (11) is arranged between the clamping block (9) and the inner bottom end of the groove (8). A spring structure (12) is arranged on the surface of the telescopic rod structure (11). Limiting grooves (13) are provided on both side surfaces of the groove (8), and a limiting rod (14) is fixedly connected inside the limiting groove (13), and a limiting block (15) is slidably connected to the surface of the limiting rod (14).

2. The embedded fire door according to claim 1, characterized in that: The limit blocks (15) are respectively fixedly connected to one end of the two side surfaces of the clamping block (9).

3. The embedded fire door according to claim 1, characterized in that: The top end of the clamping block (9) is fixedly welded with alloy steel (10).

4. The embedded fire door according to claim 1, characterized in that: A first handle (4) is provided on the surface of the door body (2).

5. The embedded fire door according to claim 1, characterized in that: A fire window (5) is installed at the inner upper end of the door body (2).

6. The embedded fire door according to claim 5, characterized in that: A second handle (6) is installed on the fire window (5).

7. The embedded fire door according to claim 1, characterized in that: A casting groove (3) is provided on the outer surface of the door frame (1).

Images