Fireproof door convenient to install

Abstract

The utility model relates to the technical field of fireproof doors, in particular to a fireproof door convenient to install. The fireproof door comprises a fireproof door body and a fireproof door frame, a plurality of connecting grooves are formed in the side face of an inner cavity of the fireproof door frame, clamping grooves are formed in the tops of the connecting grooves, telescopic grooves are formed in the bottoms of the connecting grooves, telescopic rods are movably connected to inner cavities of the telescopic grooves, and connecting rotating shafts are fixedly connected to the tops of the telescopic rods; a spring is arranged on the surface of the telescopic rod, a hydraulic cylinder is movably connected to the bottom of the telescopic rod, the bottom of the spring is fixedly connected with the top of the hydraulic cylinder, and the shape and size of inner cavities of the clamping groove and the telescopic groove are consistent with the shape and size of the surface of the connecting rotating shaft. According to the fireproof door, the hydraulic cylinder is matched with the spring to enable the connecting rotating shaft to stretch and retract up and down, so that the installation process of the fireproof door during installation is more simplified, and the problem that the fireproof door is complex and tedious during installation is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire doors, and specifically, to a fire door that is convenient for installation. Background Technique

[0002] A fire door refers to a door that can meet the requirements of fire resistance stability, integrity, and heat insulation within a certain period of time. It is a fire separation with a certain fire resistance set in fire compartments, evacuation stairwells, vertical shafts, etc. In addition to the functions of an ordinary door, a fire door can also prevent the spread of fire and smoke, and can prevent the spread of fire within a certain period of time to ensure the evacuation of personnel.

[0003] In the prior art, for example, Chinese Patent Publication No. CN219061360U discloses a fire door that is convenient for installation, including a door frame and a fire door body. The bottom of the door frame is embedded in the ground, and the upper wall surface of the bottom of the door frame is flush with the ground. The fire door body is installed inside the door frame. Two sets of support structures are provided on the front surface of the fire door body. The support structure includes two sets of mounting frame groups, two rotating shafts, two mounting plates, and support feet. The two rotating shafts are respectively fixedly installed on the two sets of mounting frame groups. One end of each of the two mounting plates is provided with a shaft hole, and the two mounting plates are respectively rotatably sleeved on the two rotating shafts through the shaft holes. A card slot is formed on the inner surface of the mounting plate, and clamping blocks matching the card slot are provided on both sides of the support foot. The clamping blocks on both sides of the support foot are respectively inserted into the card slots on both sides. A locking structure is provided between the clamping blocks and the card slots to lock the relative movement of the clamping blocks and the mounting plates. The bottom of the support foot is in contact with the ground to support the fire door body.

[0004] However, there are still deficiencies in the existing fire doors. The installation process is relatively cumbersome and requires the assistance of many tools. Disassembly and replacement are even more inconvenient, thereby reducing the use effect of the existing fire doors. Moreover, when connecting the fire door body and the door frame, it is necessary to manually lift the door body and suspend it in the door frame for assembly, and the installation docking stability is not good, which poses a safety hazard. In view of this, we propose a fire door that is convenient for installation. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a fire door that is convenient for installation to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present utility model provides a fire door that is easy to install, including a fire door body and a fire door frame. A plurality of connecting grooves are provided on the inner side surface of the fire door frame. A clamping groove is provided at the top of the connecting groove, and a telescopic groove is provided at the bottom of the connecting groove. A telescopic rod is movably connected inside the telescopic groove. The top of the telescopic rod is fixedly connected with a connecting rotating shaft. A spring is arranged on the surface of the telescopic rod. The bottom of the telescopic rod is movably connected with a hydraulic cylinder. The bottom of the spring is fixedly connected with the top of the hydraulic cylinder. The shapes and sizes of the inner cavities of the clamping groove and the telescopic groove are the same as those of the surface of the connecting rotating shaft.

[0007] As a further improvement of this technical solution, a plurality of connecting seats are fixedly connected to one side of the fire door body close to the connecting groove. A connecting hole is provided on the surface of the connecting seat. The shape and size of the inner cavity of the connecting hole are the same as those of the surface of the connecting rotating shaft.

[0008] As a further improvement of this technical solution, a plurality of threaded holes are provided at the bottom of the fire door body. A threaded rod is rotatably connected to the inner surface of the threaded hole. The bottom of the threaded rod is fixedly connected with a support column. A hexagonal groove is provided at the bottom of the support column.

[0009] As a further improvement of this technical solution, an electric door closer is fixedly connected to the top of the fire door body. A folding rod is movably connected to the top of the electric door closer. One end of the folding rod is rotatably connected to the top of the fire door frame.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] For this fire door that is easy to install, through the cooperation of the connecting groove, clamping groove and telescopic groove on the inner side surface of the fire door frame with the connecting seats on the fire door body, and by using the cooperation of the hydraulic cylinder and the spring to make the connecting rotating shaft stretch up and down, the rapid installation and disassembly of the fire door are realized. Threaded rods and support columns are provided at the bottom of the fire door body. By adjusting the threaded rods, the support columns can be extended to support the fire door body to ensure its stability during the installation process. The electric door closer and the folding rod at the top of the fire door ensure the normal closing and opening functions of the fire door. The design of this fire door significantly simplifies the installation process, reduces the number of auxiliary tools required, and makes the installation, disassembly and replacement of the fire door more convenient, thus solving the problems of complexity and tediousness in the installation of fire doors. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0013] Figure 2 It is a schematic diagram of the hydraulic cylinder structure of the present utility model;

[0014] Figure 3 Schematic diagram of the connection groove structure of the present utility model;

[0015] Figure 4 Schematic diagram of the threaded rod assembly structure of the present utility model;

[0016] Figure 5 Schematic diagram of the threaded hole structure of the present utility model.

[0017] The meanings of each label in the figure are as follows:

[0018] 1, fire door body; 11, connection seat; 12, hexagonal groove; 13, support column; 14, threaded rod; 15, threaded hole; 16, connection hole; 2, fire door frame; 21, connection groove; 22, connection rotating shaft; 23, telescopic rod; 24, hydraulic cylinder; 25, spring; 26, clamping groove; 27, telescopic groove; 3, electric door closer; 31, folding rod. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0021] In addition, in the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0022] Please refer to Figure 2As shown in the figure, the present utility model provides a fire door that is convenient for installation, including a fire door body 1 and a fire door frame 2. A plurality of connecting grooves 21 are provided on the inner cavity side of the fire door frame 2. A clamping groove 26 is provided at the top of the connecting groove 21, and a telescopic groove 27 is provided at the bottom of the connecting groove 21. A telescopic rod 23 is movably connected in the inner cavity of the telescopic groove 27. A connecting rotating shaft 22 is fixedly connected to the top of the telescopic rod 23. A spring 25 is arranged on the surface of the telescopic rod 23. The bottom of the telescopic rod 23 is movably connected to a hydraulic cylinder 24. The bottom of the spring 25 is fixedly connected to the top of the hydraulic cylinder 24. The shapes and sizes of the inner cavities of the clamping groove 26 and the telescopic groove 27 are the same as those of the surface of the connecting rotating shaft 22. Such a design enables the connecting rotating shaft 22 to be telescoped up and down through the cooperation of the hydraulic cylinder 24 and the spring 25 when the fire door is installed, thus simplifying the installation process.

[0023] Please refer to Figure 5 As shown in the figure, in this embodiment, a plurality of connecting seats 11 are fixedly connected to one side of the fire door body 1 close to the connecting groove 21. A connecting hole 16 is provided on the surface of the connecting seat 11. The shape and size of the inner cavity of the connecting hole 16 are the same as those of the surface of the connecting rotating shaft 22. When the connecting rotating shaft 22 extends into the connecting hole 16, the fire door body 1 can be firmly fixed on the fire door frame 2.

[0024] Please refer to Figure 4 and Figure 5 As shown in the figure, further, a plurality of threaded holes 15 are provided at the bottom of the fire door body 1. A threaded rod 14 is rotatably connected to the inner cavity surface of the threaded hole 15. A support column 13 is fixedly connected to the bottom of the threaded rod 14. A hexagonal groove 12 is provided at the bottom of the support column 13. By rotating the threaded rod 14, the extending length of the support column 13 can be adjusted, so that the fire door body 1 can be stably supported on the ground during installation.

[0025] Please refer to Figure 1 As shown in the figure, specifically, an electric door closer 3 is fixedly connected to the top of the fire door body 1. A folding rod 31 is movably connected to the top of the electric door closer 3. One end of the folding rod 31 is rotatably connected to the top of the fire door frame 2. The electric door closer 3 can automatically close the fire door, and the folding rod 31 can be folded up when the fire door is opened, saving space.

[0026] Please refer to Figures 1-5 As shown in the figure, in addition, through the combined design of components such as the hydraulic cylinder 24, the spring 25, the connecting rotating shaft 22, the connecting seat 11, the connecting hole 16, the threaded rod 14, the support column 13, the electric door closer 3 and the folding rod 31, the installation process of the fire door is greatly simplified, and at the same time, the stability and safety of the fire door are ensured. This design is not only convenient for installation, but also convenient for disassembly and replacement, improving the use effect of the fire door.

[0027] In summary, the working principle of this solution is as follows:

[0028] When a fire door needs to be installed, a special tool is used to align with the hexagonal groove 12 on the surface of the bottom support column 13 of the fire door body 1, causing the support column 13 to rotate, thereby driving the threaded rod 14 to rotate and the support column 13 to move downward until the bottom of the fire door body 1 reaches the same horizontal plane as the fire door frame 2. Then, the hydraulic cylinder 24 drives the telescopic rod 23 to contract, retracting the connecting rotating shaft 22 into the inner cavity of the telescopic groove 27. The connecting seat 11 on the side of the fire door body 1 is placed into the connecting groove 21, and then the hydraulic cylinder 24 cooperates with the spring 25 to release the telescopic rod 23, thereby driving the connecting rotating shaft 22 to expand and contract upward. Since the connecting holes 16 on the surface of the connecting seat 11 are the same in shape and size as the clamping grooves 26 at the top and the telescopic grooves 27 at the bottom of the connecting groove 21, the connecting rotating shaft 22 will pass through the connecting seat 11 until it is fixed to the clamping groove 26. When disassembly is required, only the hydraulic cylinder 24 needs to be used to drive the connecting rotating shaft 22 to contract downward.

[0029] The above shows and describes the basic principle, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A fire door that is easy to install, comprising a fire door body (1) and a fire door frame (2), characterized in that: On the inner cavity side of the fire door frame (2), a number of connecting grooves (21) are provided. At the top of the connecting groove (21), a clamping groove (26) is provided. At the bottom of the connecting groove (21), a telescopic groove (27) is provided. A telescopic rod (23) is movably connected in the inner cavity of the telescopic groove (27). At the top of the telescopic rod (23), a connecting rotating shaft (22) is fixedly connected. A spring (25) is arranged on the surface of the telescopic rod (23). At the bottom of the telescopic rod (23), a hydraulic cylinder (24) is movably connected, where: The bottom of the spring (25) is fixedly connected to the top of the hydraulic cylinder (24). The shapes and sizes of the inner cavities of the clamping groove (26) and the telescopic groove (27) are the same as those of the surface of the connecting rotating shaft (22).

2. The fire door that is easy to install according to claim 1, wherein: On one side of the fire door body (1) close to the connecting groove (21), a number of connecting seats (11) are fixedly connected. A connecting hole (16) is provided on the surface of the connecting seat (11), where: The shape and size of the inner cavity of the connecting hole (16) are the same as those of the surface of the connecting rotating shaft (22).

3. The fire door convenient for installation according to claim 2, characterized in that: On the bottom of the fire door body (1), a number of threaded holes (15) are provided. A threaded rod (14) is rotatably connected to the inner cavity surface of the threaded hole (15). At the bottom of the threaded rod (14), a support column (13) is fixedly connected. A hexagonal groove (12) is provided at the bottom of the support column (13).

4. The fire door convenient for installation according to claim 3, wherein: An electric door closer (3) is fixedly connected to the top of the fire door body (1). A folding rod (31) is movably connected to the top of the electric door closer (3), where: One end of the folding rod (31) is rotatably connected to the top of the fire door frame (2).

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