Steel heat-insulation fireproof door lock catch fastening lining plate

Abstract

The utility model relates to the technical field of door locks, in particular to a steel heat-insulation fireproof door lock catch fastening lining plate which comprises a door plate, a door frame is arranged outside the door plate, a lining plate body is arranged in the middle of the left side of the door frame, and screw holes are formed in the upper middle portion, the middle portion and the lower middle portion of the lining plate body respectively. According to the steel heat-insulation fireproof door lock catch fastening lining plate, through the arrangement of the lining plate body, the positioning protruding points and the door frame, the steel heat-insulation fireproof door lock catch fastening lining plate can be conveniently installed and operated before use; the lining plate body can be clamped and connected with the punching concave points reserved in the inner side of the door frame through the positioning convex points, fixed-point limiting is achieved, and then the lining plate body is stably assembled on the door frame in a welding and screw fastening mode, so that the whole lining plate is more convenient and rapid to install and operate, and the machining steps of workers are reduced; and installation errors are not easy to occur, and the product quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of door lock technology, specifically a steel heat-insulating fireproof door lock fastening liner. Background Technology

[0002] Steel insulated fire doors are doors with steel frames, door leaf skeletons, and door leaf panels. The door leaf is filled with fireproof and heat-insulating materials that are non-toxic and harmless to the human body, and is equipped with fireproof hardware. They have specified fire resistance performance. In addition, during the manufacturing process of fire doors, the connection and fastening of the hardware to the fire door body requires the use of backing plates.

[0003] In the existing technology, when using lining plates to assist in the connection between fire doors and hardware, the fastening lining plates for fire door latches are small pieces. This process is inconvenient in the production and manufacturing of fire doors and cannot improve the product quality. Therefore, in order to address the above problems, a steel insulated fire door latch fastening lining plate is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a steel heat-insulating fireproof door lock fastening liner to solve the problem of inconvenient manufacturing process when using the liner in the prior art as mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A steel insulated fireproof door lock fastening liner includes a door panel, an outer door frame, a liner body located at the middle left side of the door frame, screw holes at the upper, middle, and lower center of the liner body, a locking groove between the upper and lower screw holes, positioning protrusions integrally formed at the upper and lower positions of the liner body, inner ribs welded to the left and right sides of the door panel, and a handle engaging with the positioning protrusions through pre-drilled recesses on the inner side.

[0007] Preferably, the door frame has a U-shaped structure, and the door frame and the door panel are rotatably connected by hinges, with a total of 3 hinges.

[0008] Preferably, a door closer is fixedly installed at the upper front end of the door panel, and the end of the movable support arm of the door closer is rotatably connected to the door frame.

[0009] Preferably, a handle and a lock are provided sequentially from top to bottom on the lower left side of the front end of the door panel, and the lock and the liner body are positioned opposite each other.

[0010] Preferably, the positioning protrusions and screw holes are arranged adjacent to each other vertically, there are a total of 3 screw holes, the buckle groove is a square hollow structure, and the buckle groove and the liner body are integrally formed.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this utility model, the liner body, positioning protrusions, and door frame facilitate the installation of the steel insulated fireproof door lock fastener. Before use, the liner body can be connected to the pre-drilled recesses on the inner side of the door frame via the positioning protrusions, achieving fixed-point positioning. Then, it is securely assembled onto the door frame through welding and screw fastening. This makes the entire liner installation operation more convenient and faster, and also reduces processing steps for workers during actual production. The liner's positioning structure also reduces the likelihood of installation errors when welded to the door frame, thus improving product quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the liner body structure of this utility model;

[0015] Figure 3 This is a top view of the door panel structure of this utility model.

[0016] In the diagram: 1. Door frame; 2. Door panel; 3. Liner body; 4. Snap-in groove; 5. Screw hole; 6. Positioning protrusion; 7. Inner frame; 8. Door closer; 9. Hinge; 10. Lock; 11. Handle. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-3 This utility model provides a technical solution:

[0019] A steel insulated fireproof door lock fastening liner includes a door panel 2, a door frame 1 on the outside of the door panel 2, a liner body 3 on the middle left side of the door frame 1, screw holes 5 on the upper, middle and lower middle positions of the liner body 3, a latching groove 4 between the upper and lower screw holes 5, positioning protrusions 6 integrally formed on the upper and lower positions of the liner body 3, inner bones 7 welded on the left and right sides of the door panel 2, and a handle 11 engaging with the positioning protrusions 6 through pre-drilled recesses on the inner side.

[0020] like Figure 1 As shown, the door frame 1 has a U-shaped structure. The door frame 1 and the door panel 2 are connected by hinges 9. There are three hinges 9 in total. With the help of the three hinges 9, the door panel 2 is installed inside the door frame 1 in a rotating connection so that it can be opened and closed later. A door closer 8 is fixedly installed at the upper front end of the door panel 2. The movable support arm of the door closer 8 is rotatably connected to the door frame 1. Because the door closer 8 is installed at the top of the door panel 2, the door panel 2 can be automatically closed by the door closer 8 after it is actually opened. A handle 11 and a lock 10 are arranged from top to bottom on the lower left side of the front end of the door panel 2. The lock 10 and the backing plate body 3 are arranged opposite each other. When installing the lock 10, the relative arrangement of the installation positions will facilitate the use of the latch in the lock 10 with the backing plate body 3 to help the fire door lock.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, the positioning protrusion 6 and the screw hole 5 are arranged adjacent to each other vertically. There are a total of 3 screw holes 5. The buckle groove 4 is a square hollow structure. The buckle groove 4 and the liner body 3 are integrally formed, which will facilitate the fitting and insertion of the square lock buckle in the lock 10.

[0022] Workflow: When installing a steel insulated fire door, such as installing a locking liner, firstly, weld the inner frame 7 to the door panel 2 to provide stable structural support for the steel insulated fire door during subsequent use. Then, during installation, align the positioning protrusion 6 of the liner body 3 with the pre-reserved recess on the inner side of the door frame 1, and insert the positioning protrusion 6 into the pre-reserved recess to achieve a locking connection. The liner body 3 can then be placed in place by fixing the points. Next, weld the liner body 3 to the inside of the door frame 1 along the edge of the liner body 3, and further tighten and secure the liner body 3 and the door frame 1 by assembling the screw holes 5 and screws. After this, the liner body 3 is securely installed on the door frame 1, and installation errors are less likely to occur, which is beneficial for the subsequent closing and use of the steel insulated fire door.

[0023] 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 steel insulated fireproof door lock fastening liner, comprising a door panel (2), characterized in that: The door panel (2) is provided with a door frame (1) on the outside. The door frame (1) is provided with a liner body (3) at the middle left side. The liner body (3) is provided with screw holes (5) at the upper, middle and lower middle positions respectively. A groove (4) is provided between the upper and lower screw holes (5). The liner body (3) is provided with positioning protrusions (6) integrally formed at the upper and lower positions. The door panel (2) is provided with inner bones (7) on the left and right sides respectively. The door frame (1) is connected by the pre-drilled recesses and positioning protrusions (6) on the inner side.

2. The steel insulated fireproof door lock fastening liner according to claim 1, characterized in that: The door frame (1) has a "U" shaped structure. The door frame (1) and the door panel (2) are rotatably connected by hinges (9). There are a total of 3 hinges (9).

3. The steel insulated fireproof door lock fastening liner according to claim 1, characterized in that: A door closer (8) is fixedly installed above the front end of the door panel (2), and the movable support arm end of the door closer (8) is rotatably connected to the door frame (1).

4. The steel insulated fireproof door lock fastening liner according to claim 1, characterized in that: The door panel (2) has a handle (11) and a lock (10) arranged from top to bottom on the lower left side of the front end. The lock (10) and the liner body (3) are arranged opposite each other in the left and right positions.

5. A steel insulated fireproof door lock fastening liner according to claim 1, characterized in that: The positioning protrusion (6) and the screw hole (5) are arranged adjacent to each other vertically. There are a total of 3 screw holes (5). The buckle groove (4) is a square hollow structure. The buckle groove (4) and the liner body (3) are integrally formed.

Images