Steel fireproof door convenient to install

Abstract

The utility model relates to the technical field of steel fireproof doors, and discloses a steel fireproof door convenient to install, which comprises a door frame, fireproof door shells are arranged on two sides of an inner cavity of the door frame, hinges are arranged on the surfaces of the fireproof door shells, and the hinges are connected with the inner wall of the door frame; the bearing plates are arranged at the four corners of the front face of the door frame, mounting grooves are formed in the surfaces of the bearing plates, mounting grooves are also formed in the inner wall of the door frame, and the mounting grooves of the bearing plates communicate with the mounting grooves of the door frame; the fireproof door shell can be supported by making the bottoms of the supporting wheels make contact with the ground, when a steel fireproof door is installed, only the edge of the fireproof door shell needs to make contact with the inner wall of a door frame, the fireproof door shell can be installed on the surface of the door frame through hinges, workers do not need to spend time in lifting the fireproof door shell, and the fireproof door shell can be installed conveniently. And the fireproof door shell is prevented from shaking during installation, and the fireproof door shell can be rapidly installed.

Description

Technical Field

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

[0002] Steel fire doors are made of steel for the door frame, door leaf frame, and door panel. They are usually filled with non-toxic fireproof insulation materials and equipped with fireproof hardware. These doors have specified fire resistance and meet fire protection regulations.

[0003] Announcement CN 212249739 U (A steel fire door designed for easy installation) comprises a door frame, wherein the bottom end of the door frame is provided with a base, the top surface of the base is provided with a slot, the bottom end of the door frame is fixedly connected to a connecting block, the surface of the connecting block is in contact with the inner wall of the slot, a rotating rod is fixedly connected to the top of the slot and on a side adjacent to the connecting block, a circular groove is provided on the side of the connecting block that matches the rotating rod, the inner wall of the circular groove is in contact with the surface of the rotating rod, a first threaded groove is provided on both the front and back sides of the base, a first screw is movably connected to the inner wall of the first threaded groove, and fixing holes are provided on the side of the door frame from top to bottom;

[0004] The above technology uses connecting blocks and rotating rods to make the fire door vertical to the ground, thereby achieving the effect of convenient installation. However, due to the heavy weight of the steel fire door, when installing the steel fire door, the staff needs to lift the steel fire door and install the hinges on the surface of the steel fire door before connecting the steel fire door to the door frame. When lifting the steel fire door, it is easy to cause the steel fire door to be unstable, resulting in the staff needing to spend a lot of time to install the steel fire door. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the present invention provides a steel fire door that is easy to install, so as to solve the problem raised in the above background technology that the steel fire door is easily unstable when it is lifted, resulting in the staff needing to spend a lot of time to install the steel fire door.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a steel fire door that is easy to install, comprising:

[0007] A door frame, wherein fire door shells are provided on both sides of the inner cavity of the door frame, and hinges are installed on the surfaces of the fire door shells, and the hinges are connected to the inner wall of the door frame;

[0008] The receiving plate is arranged at the four corners of the front of the door frame. The surface of the receiving plate is provided with a mounting groove. The inner wall of the door frame is also provided with a mounting groove. The mounting grooves of the receiving plate are communicated with the mounting grooves of the door frame.

[0009] The support wheels are arranged at the bottom of the fire door shell, and the support wheels are all extended into the inner cavity of the mounting groove. A fixing rod is installed at the bottom of the fire door shell, and a mounting frame is provided at the bottom of the fixing rod. The support wheels are connected to the inner wall of the mounting frame through bearings.

[0010] Preferably, a first sealing strip is installed on the surface of the fire door shell on the left side, and a first sealing groove is opened on the surface of the fire door shell on the right side. The first sealing strip and the first sealing groove improve the sealing between the fire door shells.

[0011] Preferably, the upper surface of the fire door shell is installed with a limit rod, and the limit rod is inserted in the inner cavity of the installation groove. Positioning rods are screwed between the receiving plate and the door frame. After the steel fire door is installed, the receiving plate located above can be installed, so that the positioning rod can be inserted into the installation groove, thereby improving the stability of the fire door shell.

[0012] Preferably, a second sealing strip is installed on the surface of the fire door shell, and a second sealing groove is opened on the inner walls on both sides of the door frame. The second sealing strip and the second sealing groove improve the sealing between the fire door shell and the door frame.

[0013] Preferably, a limiting block is installed at the bottom of the fixing rod, and a limiting groove is provided on the upper surface of the mounting frame. The limiting blocks are embedded in the inner cavity of the limiting groove. The limiting blocks and the limiting groove enable the mounting frame to rotate when connected to the fixing rod, thereby enabling the support wheel to rotate, and the support wheel will not be hindered by the inner wall of the mounting groove when moving.

[0014] Preferably, a limiting cylinder is installed on the upper surface of the mounting frame, and the fixing rods are inserted into the inner cavity of the limiting cylinder. The limiting cylinder is used to improve the stability of the fixing rods.

[0015] Preferably, a mounting ring is installed at the bottom of the limiting cylinder, and a threaded rod is evenly screwed between the mounting ring and the mounting frame. After the mounting ring is installed on the surface of the mounting frame, the limiting block can be limited so that the limiting block will not fall out of the limiting groove.

[0016] Compared with the prior art, the present invention provides a steel fire door that is easy to install and has the following beneficial effects:

[0017] The steel fire door which is easy to install can support the fire door shell by contacting the bottom of the support wheel with the ground. When installing the steel fire door, it is only necessary to move the support wheel into the installation groove so that the bottom of the fire door shell and the upper surface of the bottom plate of the door frame can be at the same level. It is only necessary to contact the edge of the fire door shell with the inner wall of the door frame so that the fire door shell can be installed on the surface of the door frame through the hinge, thereby eliminating the need for staff to spend time lifting the fire door shell, preventing the fire door shell from shaking during installation, and allowing it to be installed quickly, which facilitates the installation of the steel fire door by staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a structural diagram of the door frame of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the fire door shell of the utility model;

[0021] Figure 4 This is a structural diagram of the receiving plate of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the support wheel of the utility model;

[0023] Figure 6 This is an exploded perspective view of the mounting bracket of the utility model;

[0024] Figure 7 This is a schematic cross-sectional view of the outer shell of the structural fire door of the utility model.

[0025] In the figure: 1. Door frame; 2. Fire door shell; 3. Hinge; 4. Adapter plate; 5. Mounting groove; 6. Support wheel; 7. Fixing rod; 8. Mounting frame; 9. First sealing strip; 10. First sealing groove; 11. Limiting rod; 12. Positioning rod; 13. Second sealing strip; 14. Second sealing groove; 15. Limiting block; 16. Limiting groove; 17. Limiting cylinder; 18. Mounting ring; 19. Threaded rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] This utility model provides a technical solution, a steel fire door that is easy to install, please refer to Figure 1 , including a door frame 1, with fire door shells 2 on both sides of the inner cavity of the door frame 1, please refer to Figure 3 , hinges 3 are installed on the surface of the fire door shell 2, and the hinges 3 are connected to the inner wall of the door frame 1;

[0028] See also Figure 1 , the receiving plate 4 is set at the four corners of the front of the door frame 1, please refer to Figure 4 , the surface of the receiving plate 4 is provided with a mounting groove 5, please refer to Figure 2 , the inner wall of the door frame 1 is also provided with a mounting groove 5, and the mounting groove 5 of the receiving plate 4 is communicated with the mounting groove 5 of the door frame 1;

[0029] See also Figure 3 , support wheel 6, is set at the bottom of the fire door shell 2, please refer to Figure 4 , the support wheels 6 are all inserted into the inner cavity of the mounting groove 5, please refer to Figure 5 , the bottom of the fire door shell 2 is equipped with a fixing rod 7, the bottom of the fixing rod 7 is provided with a mounting frame 8, and the support wheels 6 are connected to the inner wall of the mounting frame 8 through bearings;

[0030] The fire door shell 2 can be supported by bringing the bottom of the support wheel 6 into contact with the ground. When installing the steel fire door, it is only necessary to move the support wheel 6 into the installation groove 5 so that the bottom of the fire door shell 2 and the upper surface of the bottom plate of the door frame 1 are at the same level. It is only necessary to bring the edge of the fire door shell 2 into contact with the inner wall of the door frame 1 so that the fire door shell 2 can be installed on the surface of the door frame 1 through the hinge 3. This eliminates the need for staff to spend time lifting the fire door shell 2, prevents the fire door shell 2 from shaking during installation, and allows it to be installed quickly.

[0031] See also Figure 1 A first sealing strip 9 is installed on the surface of the left fire door shell 2, and a first sealing groove 10 is opened on the surface of the right fire door shell 2. The first sealing strip 9 and the first sealing groove 10 improve the sealing between the fire door shell 2.

[0032] See also Figure 3 The upper surface of the fire door shell 2 is equipped with a limit rod 11, and the limit rod 11 is inserted into the inner cavity of the installation groove 5. Figure 4 A positioning rod 12 is screwed between the receiving plate 4 and the door frame 1. After the steel fire door is installed, the receiving plate 4 located above can be installed, so that the positioning rod 12 can be inserted into the installation groove 5, thereby improving the stability of the fire door shell 2.

[0033] See also Figure 7The surface of the fire door shell 2 is equipped with a second sealing strip 13, see Figure 2 A second sealing groove 14 is provided on both inner walls of the door frame 1 , and the second sealing strip 13 and the second sealing groove 14 improve the sealing between the fire door shell 2 and the door frame 1 .

[0034] See also Figure 6 A limiting block 15 is installed at the bottom of the fixing rod 7, and a limiting groove 16 is provided on the upper surface of the mounting frame 8. The limiting blocks 15 are embedded in the inner cavity of the limiting groove 16. The limiting blocks 15 and the limiting groove 16 enable the mounting frame 8 to rotate when connected to the fixing rod 7, thereby enabling the support wheel 6 to rotate, and the support wheel 6 will not be hindered by the inner wall of the mounting groove 5 when moving.

[0035] The upper surface of the mounting frame 8 is installed with a limiting cylinder 17 , and the fixing rod 7 is inserted into the inner cavity of the limiting cylinder 17 . The limiting cylinder 17 is used to improve the stability of the fixing rod 7 .

[0036] A mounting ring 18 is installed at the bottom of the limiting cylinder 17, and a threaded rod 19 is evenly screwed between the mounting ring 18 and the mounting frame 8. After the mounting ring 18 is installed on the surface of the mounting frame 8, the limiting block 15 can be limited so that the limiting block 15 will not detach from the limiting groove 16.

[0037] This device first makes the bottom of the support wheel 6 contact with the ground to support the fire door shell 2. When installing the steel fire door, it is only necessary to move the support wheel 6 into the installation groove 5 to make the bottom of the fire door shell 2 and the upper surface of the bottom plate of the door frame 1 at the same level. It is only necessary to make the edge of the fire door shell 2 contact with the inner wall of the door frame 1, and the fire door shell 2 can be installed on the surface of the door frame 1 through the hinge 3, so that the staff does not need to spend time lifting the fire door shell 2, preventing the fire door shell 2 from shaking during installation, and can quickly install it. Then, the surface of the door frame 1 is filled and leveled with cement. There is no need to disassemble the receiving plate 4. When the fire door outer shell 2 is opened or closed, the supporting wheel 6 will move along the inner cavity of the installation groove 5, thereby not hindering the opening and closing of the fire door outer shell 2. At the same time, it can also support the fire door outer shell 2, thereby improving the stability of the fire door outer shell 2. Finally, after the steel fire door is installed, the receiving plate 4 located above can be installed, so that the positioning rod 12 can be inserted into the installation groove 5, further improving the stability of the fire door outer shell 2.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel fire door that is easy to install, characterized by: include: A door frame (1), wherein both sides of the inner cavity of the door frame (1) are provided with fire door shells (2), and hinges (3) are installed on the surfaces of the fire door shells (2), and the hinges (3) are connected to the inner wall of the door frame (1); A receiving plate (4) is arranged at the four front corners of the door frame (1), the surface of the receiving plate (4) is provided with a mounting groove (5), the inner wall of the door frame (1) is also provided with a mounting groove (5), and the mounting grooves (5) of the receiving plate (4) are communicated with the mounting grooves (5) of the door frame (1); Support wheels (6) are arranged at the bottom of the fire door shell (2), and the support wheels (6) are all extended into the inner cavity of the mounting groove (5). The bottom of the fire door shell (2) is installed with a fixing rod (7), and the bottom of the fixing rod (7) is provided with a mounting frame (8). The support wheels (6) are all connected to the inner wall of the mounting frame (8) through bearings.

2. The easy-to-install steel fire door according to claim 1, characterized in that: A first sealing strip (9) is installed on the surface of the fire door shell (2) on the left side, and a first sealing groove (10) is opened on the surface of the fire door shell (2) on the right side.

3. The easy-to-install steel fire door according to claim 1, characterized in that: The upper surface of the fire door shell (2) is installed with a limit rod (11), and the limit rod (11) is inserted into the inner cavity of the installation groove (5). A positioning rod (12) is screwed between the receiving plate (4) and the door frame (1).

4. The easy-to-install steel fire door according to claim 1, characterized in that: The surface of the fire door shell (2) is provided with a second sealing strip (13), and the inner walls on both sides of the door frame (1) are provided with a second sealing groove (14).

5. The easy-to-install steel fire door according to claim 1, characterized in that: The bottom of each fixing rod (7) is provided with a limiting block (15), and the upper surface of each mounting frame (8) is provided with a limiting groove (16), and each limiting block (15) is embedded in the inner cavity of the limiting groove (16).

6. The easy-to-install steel fire door according to claim 1, characterized in that: A limiting cylinder (17) is installed on the upper surface of the mounting frame (8), and the fixing rods (7) are inserted into the inner cavity of the limiting cylinder (17).

7. The easy-to-install steel fire door according to claim 6, characterized in that: The bottom of each of the limiting cylinders (17) is provided with a mounting ring (18), and a threaded rod (19) is evenly screwed between the mounting ring (18) and the mounting frame (8).

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