A quick-install fastener for fire doors and steel door frames

Abstract

This utility model discloses a quick-installation fastener for fire doors and steel door frames, including a steel door frame body and a fire door body. Two mounting slots are provided on one side of the fire door body, and a cavity is formed inside the fire door body. Two fixing plates are fixedly connected inside the cavity, and a fixing structure is provided within the cavity. Protective components are provided on the fire door body. This utility model utilizes a rotating column, an elliptical column, a rotating disk, a sliding rod, a locking pin, a toggle pin, and a spring. The rotating disk moves the corresponding toggle pin through an arc-shaped groove. The toggle pin moves the corresponding sliding rod, which in turn moves the locking pin and compresses the spring, causing the locking pin to retract. Then, two locking blocks are inserted into the corresponding mounting slots. The elliptical column is then released, and under the elasticity of the spring, the locking pin engages with the corresponding locking hole, quickly installing the fire door body onto the steel door frame body, thus improving installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of rapid installation technology of fire doors and steel door frames, and in particular to a rapid installation fastener for fire doors and steel door frames. Background Technology

[0002] Fire doors are doors that can meet the requirements of fire resistance stability, integrity and heat insulation for a certain period of time. They can prevent the spread of fire and ensure the evacuation of people for a certain period of time, and are widely used in various types of buildings.

[0003] However, in existing equipment, most fire doors and steel door frames are connected by hinges, which are bolted to the fire door and steel door frame, resulting in low installation efficiency. Therefore, a quick-installation fastener for fire doors and steel door frames is proposed. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a quick-installation fastener for fire doors and steel door frames.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a quick-installation fastener for fire doors and steel door frames, comprising a steel door frame body and a fire door body, wherein two mounting slots are provided on one side of the fire door body, a cavity is provided inside the fire door body, two fixing plates are fixedly connected inside the cavity, a fixing structure is provided inside the cavity, a protective component is provided on the fire door body, a limit frame is fixedly connected to the inner wall of the steel door frame body, two rotating slots are provided on one side of the steel door frame body, a snap-fit ​​block is rotatably connected in each rotating slot, and a snap-fit ​​hole is provided on one side of each snap-fit ​​block;

[0006] The fixed structure includes a rotating column rotatably connected to one side of the cavity, one end of which passes through one side of the fire door body and is fixedly connected to an elliptical column.

[0007] As a further description of the above technical solution:

[0008] Two rotating disks are fixedly connected to the rotating column, and each rotating disk has two arc-shaped grooves on one side.

[0009] As a further description of the above technical solution:

[0010] Each of the fixed plates has a sliding rod slidably connected to one side, and a toggle post is fixedly connected to one end of each sliding rod. The opposite ends of each toggle post are slidably connected to the corresponding arc-shaped groove.

[0011] As a further description of the above technical solution:

[0012] Each of the two sliding rods has a locking pin fixedly connected to one end at a distance from the other. Each locking pin is slidably connected through the cavity to the corresponding side, and each locking pin is adapted to the corresponding locking hole.

[0013] As a further description of the above technical solution:

[0014] Each of the sliding rods is movably fitted with a spring, one end of each spring is fixedly connected to one side of the corresponding fixed plate, and the other end is fixedly connected to one side of the snap-fit ​​post.

[0015] As a further description of the above technical solution:

[0016] The protective component includes a fixed frame fixedly connected to one side of the fire door body. Each side of the fixed frame away from each other has a sliding groove. A protective cover is slidably connected in both sliding grooves. A magnetic piece is fixedly connected to the bottom of the protective cover.

[0017] As a further description of the above technical solution:

[0018] A fixing groove is provided on one side of the fixing frame, and a magnetic strip is fixedly connected inside the fixing groove.

[0019] This utility model has the following beneficial effects:

[0020] 1. Compared with existing technologies, this quick-installation fastener for fire doors and steel door frames utilizes a rotating column, an elliptical column, a rotating disk, a sliding rod, a locking pin, a toggle pin, and a spring. Rotating the elliptical column drives the rotating column, which in turn drives two rotating disks. The rotating disks, through arc-shaped grooves, move corresponding toggle pins, which in turn move corresponding sliding rods. The sliding rods then move locking pins and compress the springs, causing the locking pins to retract. The two locking blocks are then inserted into their corresponding mounting slots. Releasing the elliptical column allows the locking pins to engage with their corresponding locking holes under the spring's elasticity, quickly installing the fire door body onto the steel door frame body, thus improving installation efficiency.

[0021] 2. Compared with the existing technology, this quick-installation fastener for fire doors and steel door frames, by setting a fixed frame, protective cover, fixed groove and magnetic strip, etc., after installation, the protective cover is slid into the two sliding grooves on the fixed frame so that the protective cover covers the elliptical cylinder. At the same time, the magnetic piece is attracted to the magnetic strip to fix the protective cover and prevent the elliptical cylinder from rotating due to accident. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a quick-installation fastener for fire doors and steel door frames proposed in this utility model.

[0023] Figure 2A three-dimensional structural diagram of a closing protective cover for a quick-installation fixing component for fire doors and steel door frames proposed in this utility model;

[0024] Figure 3 A schematic diagram of a steel door frame for a quick-installation fastener for fire doors and steel door frames proposed in this utility model;

[0025] Figure 4 Exploded view of the steel door frame and snap-fit ​​block for a quick-installation fastener for fire doors and steel door frames proposed in this utility model;

[0026] Figure 5 A plan view of the main body of a fire door for a quick-installation fastener for fire doors and steel door frames, as proposed in this utility model;

[0027] Figure 6 A cross-sectional view of the main body of a fire door for a quick-installation fastener for fire doors and steel door frames, as proposed in this utility model.

[0028] Figure 7 A three-dimensional cross-sectional view of the main body of a fire door for a quick-installation fastener for fire doors and steel door frames, as proposed in this utility model.

[0029] Figure 8 This is a schematic diagram of the fixing structure of a quick-installation fastener for fire doors and steel door frames proposed in this utility model.

[0030] Figure 9 Exploded view of the fixing structure of a quick-installation fastener for fire doors and steel door frames proposed in this utility model;

[0031] Figure 10 This is a schematic diagram of a protective component for quick installation and fixing of fire doors and steel door frames, as proposed in this utility model.

[0032] Legend:

[0033] 1. Steel door frame body; 2. Fire door body; 3. Rotating groove; 4. Snap-fit ​​block; 5. Mounting groove; 6. Cavity; 7. Fixing structure; 701. Rotating column; 702. Elliptical column; 703. Rotating disk; 704. Sliding rod; 705. Snap-fit ​​column; 706. Actuating column; 707. Spring; 8. Protective components; 801. Fixing frame; 802. Protective cover; 803. Fixing groove; 804. Magnetic strip; 9. Limiting frame; 10. Fixing plate. Detailed Implementation

[0034] 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.

[0035] Reference Figures 1 to 10 This utility model provides a quick-installation fastener for fire doors and steel door frames: it includes a steel door frame body 1 and a fire door body 2. Two installation grooves 5 are opened on one side of the fire door body 2. A cavity 6 is opened inside the fire door body 2. Two fixing plates 10 are fixedly connected inside the cavity 6. A fixing structure 7 is provided inside the cavity 6. A protective component 8 is provided on the fire door body 2. A limit frame 9 is fixedly connected to the inner wall of the steel door frame body 1. A fireproof sealing gasket is fixedly provided on one side of the limit frame 9. The fireproof sealing gasket seals the gap between the steel door frame body 1 and the fire door body 2, reducing the probability of smoke leakage from the gap. Two rotating grooves 3 are opened on one side of the steel door frame body 1. A snap-fit ​​block 4 is rotatably connected in each rotating groove 3. A snap-fit ​​hole is opened on one side of each snap-fit ​​block 4.

[0036] To achieve rapid installation, the fixing structure 7 includes a rotating column 701 rotatably connected to one side of the cavity 6. One end of the rotating column 701 passes through one side of the fire door body 2 and is fixedly connected to an elliptical column 702. Two rotating disks 703 are fixedly connected to the rotating column 701. Each rotating disk 703 has two arc-shaped grooves on one side. A sliding rod 704 is slidably connected to one side of each fixing plate 10. A toggle post 706 is fixedly connected to one end of each sliding rod 704. The opposite ends of each toggle post 706 are slidably connected to the corresponding arc-shaped grooves. The opposite ends of the two sliding rods 704 are fixedly connected to a locking post 705. A spring 707 is movably sleeved on each sliding rod 704. One end of each spring 707 is fixedly connected to one side of the corresponding fixing plate 10, and the other end is fixedly connected to a locking post 705. One side of the connecting post 705 is fixedly connected, and each locking post 705 is slidably connected through the cavity 6 to the corresponding side. Each locking post 705 is adapted to the corresponding locking hole. Rotating the elliptical cylinder 702 causes the rotating column 701 to rotate, which in turn causes the two rotating disks 703 to rotate. The rotating disks 703 drive the corresponding actuating post 706 to move through the arc groove. The actuating post 706 drives the corresponding sliding rod 704 to move, which in turn drives the locking post 705 to move and compresses the spring 707, causing the locking post 705 to retract. Then, the two locking blocks 4 are inserted into the corresponding mounting slots 5. Then, the elliptical cylinder 702 is released, and under the elasticity of the spring 707, the locking post 705 is locked into the corresponding locking hole, so that the fire door body 2 is quickly installed on the steel door frame body 1, improving installation efficiency.

[0037] To achieve the purpose of protection, the protective component 8 includes a fixed frame 801 fixedly connected to one side of the fire door body 2. The fixed frame 801 has sliding grooves on both sides away from each other. A protective cover 802 is slidably connected in the two sliding grooves. A magnetic piece is fixedly connected to the bottom of the protective cover 802. A fixed groove 803 is opened on one side of the fixed frame 801. A magnetic strip 804 is fixedly connected inside the fixed groove 803. After installation, the protective cover 802 is slid into the two sliding grooves on the fixed frame 801 so that the protective cover 802 covers the elliptical cylinder 702. At the same time, the magnetic piece is attracted to the magnetic strip 804 to fix the protective cover 802 and prevent the elliptical cylinder 702 from rotating due to accident.

[0038] Working principle: Rotating the elliptical cylinder 702 drives the rotating cylinder 701 to rotate, which in turn drives the two rotating disks 703 to rotate. The rotating disks 703 drive the corresponding actuating column 706 to move through the arc groove. The actuating column 706 drives the corresponding sliding rod 704 to move, which in turn drives the locking column 705 to move and compresses the spring 707, causing the locking column 705 to retract. Then, the two locking blocks 4 are inserted into the corresponding mounting slots 5. The elliptical cylinder 702 is then released, and under the elasticity of the spring 707, the locking column 705 engages with the corresponding locking hole, quickly installing the fire door body 2 onto the steel door frame body 1, improving installation efficiency. After installation, the protective cover 802 is slid into the two sliding slots on the fixed frame 801, covering the elliptical cylinder 702. At the same time, the magnetic piece is attracted to the magnetic strip 804, fixing the protective cover 802 and preventing the elliptical cylinder 702 from rotating due to accidents.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-installation fastener for fire doors and steel door frames, comprising a steel door frame body (1) and a fire door body (2), characterized in that: Two mounting slots (5) are provided on one side of the fire door body (2). A cavity (6) is provided inside the fire door body (2). Two fixing plates (10) are fixedly connected inside the cavity (6). A fixing structure (7) is provided inside the cavity (6). A protective component (8) is provided on the fire door body (2). A limit frame (9) is fixedly connected to the inner wall of the steel door frame body (1). Two rotating slots (3) are provided on one side of the steel door frame body (1). A snap-fit ​​block (4) is rotatably connected in each rotating slot (3). A snap-fit ​​hole is provided on one side of each snap-fit ​​block (4). The fixed structure (7) includes a rotating column (701) rotatably connected to one side of the cavity (6), one end of the rotating column (701) passing through one side of the fire door body (2) and fixedly connected to an elliptical column (702).

2. The quick-installation fastener for fire doors and steel door frames according to claim 1, characterized in that: Two rotating disks (703) are fixedly connected to the rotating column (701), and two arc-shaped grooves are opened on one side of each rotating disk (703).

3. A quick-installation fastener for fire doors and steel door frames according to claim 2, characterized in that: A sliding rod (704) is slidably connected to one side of each of the fixed plates (10), and an actuating post (706) is fixedly connected to one end of each of the sliding rods (704). The opposite ends of each actuating post (706) are slidably connected in the corresponding arc-shaped groove.

4. A quick-installation fastener for fire doors and steel door frames according to claim 3, characterized in that: Each of the two sliding rods (704) has a locking pin (705) fixedly connected to one end of each sliding rod (704). Each locking pin (705) is slidably connected through the cavity (6) to the corresponding side. Each locking pin (705) is adapted to the corresponding locking hole.

5. A quick-installation fastener for fire doors and steel door frames according to claim 4, characterized in that: Each of the sliding rods (704) is movably fitted with a spring (707), one end of each spring (707) is fixedly connected to one side of the corresponding fixing plate (10), and the other end is fixedly connected to one side of the snap-fit ​​post (705).

6. A quick-installation fastener for fire doors and steel door frames according to claim 1, characterized in that: The protective component (8) includes a fixed frame (801) fixedly connected to one side of the fire door body (2). The fixed frame (801) has sliding grooves on the opposite sides. A protective cover (802) is slidably connected in both sliding grooves. A magnetic piece is fixedly connected to the bottom of the protective cover (802).

7. A quick-installation fastener for fire doors and steel door frames according to claim 6, characterized in that: A fixing groove (803) is provided on one side of the fixing frame (801), and a magnet strip (804) is fixedly connected inside the fixing groove (803).

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