Frame fixing structure of protective airtight door

Abstract

The utility model relates to the technical field of frame fixing structures of protective air-tight doors, in particular to a frame fixing structure of a protective air-tight door, which comprises an upper frame and a lower frame, an assembly structure is arranged at the rear end of the upper frame and the rear end of the lower frame, a split type structure is arranged in the upper frame and the lower frame, and the assembly structure comprises a connecting seat. The connecting seats are arranged at the rear ends of the upper frame and the lower frame, T-shaped blocks are arranged at the front ends of the connecting seats, connecting grooves are formed in the upper frame and the lower frame, the T-shaped blocks arranged at the front ends of the connecting seats can be clamped in the connecting grooves, and inserting cavities are formed in the connecting seats. According to the frame fixing structure of the protective air-tight door, the frame of the protective air-tight door can be conveniently assembled, the frame can be conveniently replaced when needing to be replaced, bolts and nuts are not used for limiting the frame any more, the trouble that tools are needed for operation during replacement, and practicability and convenience of the device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of frame fixing structures for protective closed doors, in particular to a frame fixing structure for protective closed doors. Background Art

[0002] The protective closed door is a part of the civil air defense project. It is a door with a high degree of sealing performance, which can effectively isolate external dangerous factors, such as fire, gas leakage, etc., to protect the lives of personnel. The door cover is a building decoration term, which refers to the two door frames inside and outside the door. There are also direct door frames. Its main function is to fix the door leaf and protect the corners and decorations.

[0003] For example, a patent document with announcement number CN216277487U discloses a walk-in door frame structure, including a door frame body, a bottom plate, a filling strip, a fixing bolt, a cavity, a fastener, and an injection hole, wherein the door frame body is connected to the wall, the door frame body is connected to the bottom plate, a threaded fixing bolt is provided on the top of the door frame body, the fixing bolt is connected to the wall, a cavity is formed on the side wall of the door frame body, and filling strips are bonded in the cavities on the left and right sides, a plurality of fasteners are clamped on the upper part of the door frame body, the fasteners are connected to the front and rear sides of the door frame body, a plurality of injection holes are formed on the door frame body, and the injection holes penetrate the door frame body, and the injection holes are directed toward the door frame body.

[0004] The frames of existing doors are usually directly connected to the wall with bolts, which means that tools are needed to fix, disassemble or replace the door frames, which makes operation inconvenient and reduces work efficiency. Therefore, it is urgent to design a frame fixing structure for a protective sealed door to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a frame fixing structure for a protective closed door, so as to solve the problem proposed in the above background technology that the frame of the existing door is usually directly connected to the wall by bolts, resulting in the need to use tools to conveniently replace, disassemble or install the door frame when fixing and disassembling it, which leads to inconvenient operation and reduced work efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a frame fixing structure for a protective closed door, comprising: an upper frame and a lower frame, an assembly structure is arranged at the rear ends of the upper frame and the lower frame, a split structure is arranged inside the upper frame and the lower frame, the assembly structure comprises a connecting seat, the connecting seat is arranged at the rear ends of the upper frame and the lower frame, a T-block is arranged at the front end of the connecting seat, a connecting groove is provided inside the upper frame and the lower frame, the T-block arranged at the front end of the connecting seat can be clamped in the connecting groove, an insertion cavity is provided inside the connecting seat, a moving rod is slidably arranged inside the insertion cavity, the end of the moving rod away from the connecting seat is inserted into the upper frame and the lower frame, and a pull rod is fixedly connected to the upper end of the moving rod.

[0007] Preferably, one end of the moving rod inserted in the insertion cavity is fixedly connected to a spring, and one end of the spring away from the moving rod is fixedly connected to the inner wall of the insertion cavity.

[0008] Preferably, a sliding block is fixedly connected to the side wall of the movable rod, and the sliding block is slidably arranged inside a sliding groove, and the sliding groove is opened inside the connecting seat.

[0009] Preferably, mounting bolts are installed inside the connection seat, and the mounting bolts are installed inside the mounting surface.

[0010] Preferably, the split structure includes a mounting seat, the mounting seat is fixedly arranged at the bottom end of the upper frame, the mounting seat can be inserted into a mounting groove, and the mounting groove is opened inside the lower frame.

[0011] Preferably, a limiting bolt is installed inside the mounting seat, and the limiting bolt is installed inside the lower frame.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The frame fixing structure of the protective airtight door is provided with an assembly structure. When the frame fixing structure of the protective airtight door is used, the connecting seat can be connected to the wall first, and then the upper frame and the lower frame are assembled with the connecting seat. First, the pull rod is pulled to drive the moving rod to move in the direction close to the connecting seat, and then the connecting groove is adapted and assembled with the T-block set at the front end of the connecting seat. At this time, the spring is in a compressed and force-accumulating state. The pull rod is released, and the elastic force of the spring can be used to drive the moving rod to move in the direction away from the connecting seat, so that it enters the grooves provided inside the upper frame and the lower frame, and the frame of the protective airtight door can be conveniently fixed. Through this design, the frame fixing structure of the protective airtight door can realize the convenient assembly of the frame of the protective airtight door, and the frame can be conveniently replaced when it needs to be replaced, and it is no longer limited by bolts and nuts, which avoids the need to use tools to operate during replacement, thereby improving the practicability and convenience of the device.

[0014] 2. The frame fixing structure of the protective sealed door is provided with a split structure. When the frame fixing structure of the protective sealed door is used, its upper frame and lower frame are split structures, which can be inserted into the mounting groove using a mounting seat, so that they can be easily assembled and conveniently installed and replaced separately. Through this design, the frame fixing structure of the protective sealed door adopts a split structure, which makes it more convenient to assemble its frame, thereby improving the practicality and convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic front view of the three-dimensional structure of the utility model;

[0016] Figure 2 It is an exploded front view schematic diagram of the upper frame and the connecting seat structure of the utility model;

[0017] Figure 3 It is a schematic diagram of a top view cross section of the structure of the utility model;

[0018] Figure 4 For this utility model Figure 2 A schematic diagram of the structure enlargement in the middle;

[0019] Figure 5 For this utility model Figure 3 Enlarged schematic diagram of the structure at point B in the middle.

[0020] In the figure: 111, upper frame; 112, lower frame; 2, assembly structure; 211, connecting seat; 212, insertion cavity; 213, moving rod; 214, pulling rod; 215, spring; 216, slider; 217, slide groove; 218, mounting bolt; 219, connecting groove; 3, split structure; 311, mounting seat; 312, mounting groove; 313, limiting bolt. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-5 , an embodiment provided by the utility model:

[0023] A frame fixing structure for protecting a sealed door comprises: an upper frame 111 and a lower frame 112, an assembly structure 2 is arranged at the rear end of the upper frame 111 and the lower frame 112, a split structure 3 is arranged inside the upper frame 111 and the lower frame 112, the assembly structure 2 comprises a connecting seat 211, the connecting seat 211 is arranged at the rear end of the upper frame 111 and the lower frame 112, the connecting seat 211 is connected to the wall, a T-block is arranged at the front end of the connecting seat 211, a connecting groove 219 is opened inside the upper frame 111 and the lower frame 112, the T-block arranged at the front end of the connecting seat 211 can be stuck in the connecting groove 219, an inserting cavity 212 is opened inside the connecting seat 211, a moving rod 213 is slidably arranged inside the inserting cavity 212, and the moving rod 213 is away from the connecting seat 21 One end of 1 is inserted into the upper frame 111 and the lower frame 112, and the upper end of the moving rod 213 is fixedly connected with the pull rod 214. Through this design, when the frame fixing structure of the protective airtight door is used, the connecting seat 211 can be connected to the wall first, and then the upper frame 111 and the lower frame 112 are assembled with the connecting seat 211. First, the pull rod 214 is pulled to drive the moving rod 213 to move in the direction close to the connecting seat 211, and then the connecting groove 219 is adapted and assembled with the T-block set at the front end of the connecting seat 211, and then the pull rod 214 is pulled to drive the moving rod 213 to move in the direction away from the connecting seat 211, so that it enters the grooves opened in the upper frame 111 and the lower frame 112, so that the frame of the protective airtight door can be conveniently fixed.

[0024] Furthermore, one end of the moving rod 213 inserted into the insertion cavity 212 is fixedly connected with a spring 215, and the end of the spring 215 away from the moving rod 213 is fixedly connected to the inner wall of the insertion cavity 212. Through this design, when using the frame fixing structure of the protective airtight door, the connecting seat 211 can be connected to the wall first, and then the upper frame 111 and the lower frame 112 are assembled with the connecting seat 211. First, pull the pull rod 214 to drive the moving rod 213 to move in the direction close to the connecting seat 211, and then adapt and assemble the connecting groove 219 and the T-block set at the front end of the connecting seat 211. At this time, the spring 215 is in a compressed and stored state. Release the pull rod 214, and use the elastic force of the spring 215 to drive the moving rod 213 to move in the direction away from the connecting seat 211, so that it enters the groove opened in the upper frame 111 and the lower frame 112, so that the frame of the protective airtight door can be conveniently fixed.

[0025] Furthermore, a slider 216 is fixedly connected to the side wall of the moving rod 213, and the slider 216 is slidably set inside the slide groove 217. The slide groove 217 is opened inside the connecting seat 211. Through this design, when the moving rod 213 moves, the slider 216 slides synchronously inside the slide groove 217, making its movement more stable.

[0026] Furthermore, a mounting bolt 218 is installed inside the connection seat 211, and the mounting bolt 218 is installed inside the wall.

[0027] Furthermore, the split structure 3 includes a mounting seat 311, which is fixedly arranged at the bottom of the upper frame 111. The mounting seat 311 can be inserted into the mounting groove 312, and the mounting groove 312 is opened in the lower frame 112. Through this design, when the frame fixing structure of the protective sealed door is used, its upper frame 111 and the lower frame 112 are the split structure 3, which can be inserted into the mounting groove 312 using the mounting seat 311, so that they can be easily assembled and conveniently installed and replaced separately.

[0028] Furthermore, a limiting bolt 313 is installed inside the mounting seat 311, and the limiting bolt 313 is installed inside the lower frame 112. Through this design, the mounting seat 311 and the lower frame 112 are limited and fastened by the limiting bolt 313, which is convenient and stable.

[0029] Working principle:

[0030] When using the frame fixing structure of the protective airtight door, the connecting seat 211 can be connected to the wall first, and then the upper frame 111 and the lower frame 112 can be assembled with the connecting seat 211. First, pull the pull rod 214 to drive the movable rod 213 to move toward the connecting seat 211, and then adapt and assemble the connecting groove 219 and the T-block set at the front end of the connecting seat 211. At this time, the spring 215 is in a compressed and force-accumulating state. Release the pull rod 214, and use the elastic force of the spring 215 to drive the movable rod 213 to move away from the connecting seat 211, so that it enters the groove opened inside the upper frame 111 and the lower frame 112, so that the frame of the protective airtight door can be conveniently fixed.

[0031] When using the frame fixing structure of the protective sealed door, its upper frame 111 and lower frame 112 are split structures 3, which can be inserted into the installation groove 312 using the mounting seat 311, so that they can be easily assembled and easily installed and replaced. The operation is now completed.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A frame fixing structure for a protective closed door, comprising: an upper frame (111) and a lower frame (112), characterized in that: An assembly structure (2) is provided at the rear ends of the upper frame (111) and the lower frame (112); a split structure (3) is provided inside the upper frame (111) and the lower frame (112); the assembly structure (2) comprises a connecting seat (211); the connecting seat (211) is provided at the rear ends of the upper frame (111) and the lower frame (112); a T-shaped block is provided at the front end of the connecting seat (211); and a split structure (3) is provided inside the upper frame (111) and the lower frame (112). A connecting groove (219) is provided, and a T-shaped block arranged at the front end of the connecting seat (211) can be clamped in the connecting groove (219). An inserting cavity (212) is provided inside the connecting seat (211), and a moving rod (213) is slidably arranged inside the inserting cavity (212). One end of the moving rod (213) away from the connecting seat (211) is inserted into the upper frame (111) and the lower frame (112), and the upper end of the moving rod (213) is fixedly connected to a pull rod (214).

2. The frame fixing structure of a protective closed door according to claim 1, characterized in that: One end of the moving rod (213) inserted into the insertion cavity (212) is fixedly connected to a spring (215), and one end of the spring (215) away from the moving rod (213) is fixedly connected to the inner wall of the insertion cavity (212).

3. A frame fixing structure for a protective closed door according to claim 2, characterized in that: A sliding block (216) is fixedly connected to the side wall of the moving rod (213), and the sliding block (216) is slidably disposed inside a sliding groove (217), and the sliding groove (217) is provided inside the connecting seat (211).

4. The frame fixing structure of a protective closed door according to claim 1, characterized in that: A mounting bolt (218) is installed inside the connection seat (211), and the mounting bolt (218) is installed inside the mounting surface.

5. The frame fixing structure of a protective closed door according to claim 1, characterized in that: The split structure (3) comprises a mounting seat (311), wherein the mounting seat (311) is fixedly arranged at the bottom end of the upper frame (111), and the mounting seat (311) can be inserted into a mounting groove (312), and the mounting groove (312) is provided in the lower frame (112).

6. The frame fixing structure of a protective closed door according to claim 5, characterized in that: A limiting bolt (313) is installed inside the mounting seat (311), and the limiting bolt (313) is installed inside the lower frame (112).

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