High-strength anti-deformation steel fireproof door

Abstract

The utility model relates to the technical field of fireproof doors, in particular to a high-strength anti-deformation steel fireproof door which comprises a door frame and a groove, the groove is formed in the door frame, a connecting plate is rotationally connected to the interior of the groove through a pin shaft, the end of the connecting plate is fixedly connected with a main door, a baffle is fixedly connected to the outer wall of the left side of the back of the main door, and the outer wall of the left side of the back of the main door is fixedly connected with the baffle. A clamping groove is formed in the door frame, and a locking mechanism is arranged in the main door. The end of the sliding rod retracts into the main door by rotating the rotating wheel, the handle is held by hand, the main door is reversely rotated, the door plate is located in the door frame, the rotating wheel is loosened, the spring drives the sliding rod to reversely slide under the elastic effect, the end of the sliding rod is inserted into the clamping groove, and the sliding rod and the clamping groove are matched to fixedly clamp the main door into the doorway. The number of the sliding rods is four, the main door is positioned in multiple directions, operation is easy, locking of the main door is convenient to achieve, and then the use performance of the high-strength anti-deformation steel fireproof door is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire doors, in particular to a high-strength anti-deformation steel fire door. Background Art

[0002] A fire door is a door that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time. It is a fire-resistant partition with a certain fire resistance installed between fire compartments, evacuation stairwells, vertical shafts, etc.

[0003] For example, a high-strength, anti-deformation steel fire door with patent number CN218509351U includes a main door body and an auxiliary door body, the auxiliary door body is located on the left end outer surface of the main door body, the inner end of the main door body is provided with a reinforced inner core, the left end of the main door body is provided with a track rod, and a sealing block is provided between the track rods. The above document still has shortcomings. When in use, the main door body, the auxiliary door body, the reinforced inner core, the track rod, the through hole, the movable part, the front sealing plate, the rear sealing plate, the sealing block, and the connecting hinge plate are provided. The front sealing plate and the rear end outer surface of the auxiliary door body are initially sealed, and the connectable hinge plate is passed through the through hole and the track rod to make the rear sealing plate located at the rear end of the connecting hinge plate and the front end outer surface of the auxiliary door body seal with each other. However, when the main door in the above document is closed, the main door is locked by the cooperation of the movable plate and the fixed block. The operation is more troublesome and it is not convenient to lock the main door, thereby reducing the performance of the high-strength, anti-deformation steel fire door. Utility Model Content

[0004] The utility model aims to solve the problem that it is inconvenient to lock the main door, and proposes a high-strength anti-deformation steel fireproof door.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A high-strength, deformation-resistant steel fireproof door is designed, comprising a door frame and a groove. The groove is arranged inside the door frame. A connecting plate is rotatably connected to the inside of the groove through a pin shaft. The end of the connecting plate is fixedly connected to the main door. A baffle is fixedly connected to the outer wall on the left side of the back of the main door. A card slot is provided inside the door frame, and a locking mechanism is provided inside the main door.

[0007] Preferably, the locking mechanism includes a disc, which is rotatably connected to the main door through a bearing, a rotating wheel is fixed to the surface of the disc, and the back of the disc is rotatably connected to four support rods through a pin shaft, and the ends of the support rods are rotatably connected to a sliding rod through a pin shaft, the outer wall of the sliding rod is slidably connected to the main door, the end of the sliding rod is engaged with the slot, and the outer wall of the sliding rod is sleeved with a spring, and the two ends of the spring are respectively fixedly connected to the main door and the sliding rod.

[0008] Preferably, a handle is fixedly connected to the surface of the main door, and a rubber strip is fixedly connected to the outer wall of the main door.

[0009] Preferably, the main door is fixedly connected to the outer wall of the cylinder.

[0010] Preferably, an observation window is fixedly connected to the inner wall of the cylinder.

[0011] The utility model proposes a high-strength anti-deformation steel fire door, which has the following beneficial effects: through the cooperation between the disc, the rotating wheel, the support rod, the sliding rod and the spring, the end of the sliding rod is retracted into the interior of the main door by rotating the rotating wheel, the handle is held and the main door is rotated in the opposite direction, the door panel is inside the door frame, the rotating wheel is released, and the spring drives the sliding rod to slide in the opposite direction under the elastic action, and the end of the sliding rod is inserted into the interior of the card slot. The sliding rod cooperates with the card slot to fix the main door to the interior of the doorway. Four sliding rods are provided to perform multi-directional positioning of the main door. The operation is relatively simple and it is convenient to lock the main door, thereby improving the performance of the high-strength anti-deformation steel fire door. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 This is a structural sectional view of the utility model;

[0014] Figure 3 This is a schematic structural diagram of the connection between the door frame, main door and rotating wheel in the present invention;

[0015] Figure 4 This is a structural diagram of the connection between the door frame and the card slot in the utility model;

[0016] Figure 5 This is a schematic structural diagram of the connection between the door frame, the groove and the connecting plate in the present invention;

[0017] Figure 6 It is a structural diagram of the connection between the cylinder and the observation window in the utility model.

[0018] In the figure: 1. door frame, 2. groove, 3. locking mechanism, 301. disc, 302. rotating wheel, 303. support rod, 304. sliding rod, 305. spring, 4. connecting plate, 5. main door, 6. baffle, 7. slot, 8. handle, 9. rubber strip, 10. cylinder, 11. observation window. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] Refer to the attached Figure 1-6: In this embodiment, a high-strength anti-deformation steel fire door includes a door frame 1 and a groove 2. The groove 2 is arranged inside the door frame 1. The interior of the groove 2 is connected to a connecting plate 4 by a pin. The door panel 4 rotates inside the groove 2. The groove 2 avoids the position of the connecting plate 4. The end of the connecting plate 4 is fixedly connected to the main door 5. The connecting plate 4 plays a supporting and guiding role for the main door 5. The internal material structure composition of the main door 5 and the principle of achieving high-strength anti-deformation are the same as those in a high-strength anti-deformation steel fire door with patent number CN218509351U;

[0021] A baffle 6 is fixed to the outer wall on the left side of the back of the main door 5, which preliminarily blocks the gap between the main door 5 and the door frame 1. A slot 7 is provided inside the door frame 1, and a locking mechanism 3 is provided inside the main door 5. The locking mechanism 3 locks the main door 5 and the door frame 1. A handle 8 is fixed to the surface of the main door 5, and the handle 8 drives the main door 5 to move. A rubber strip 9 is fixed to the outer wall of the main door 5, and the rubber strip 9 increases the sealing between the main door 5 and the door frame 1. The main door 5 is fixedly connected to the outer wall of the cylinder 10, and an observation window 11 is fixed to the inner wall of the cylinder 10. The back of the main door 5 can be observed through the observation window 11, and the observation window 11 is made of tempered glass.

[0022] The locking mechanism 3 includes a disc 301, a rotating wheel 302, a support rod 303, a slide bar 304, and a spring 305. The disc 301 is rotatably connected to the main door 5 via a bearing. The surface of the disc 301 is fixedly connected to the rotating wheel 302, which drives the disc 301 to rotate. The back of the disc 301 is rotatably connected to four support rods 303 via a pin. The disc 301 drives the four support rods 303 to move. The ends of the support rods 303 are rotatably connected to the slide bar 304 via a pin. The support rod 303 drives the slide bar 304 to move. The outer wall of the slide bar 304 is slidably connected to the main door 5, and the slide bar 304 slides inside the main door 5.

[0023] The end of the slide rod 304 is engaged with the card slot 7, and the end of the slide rod 304 cooperates with the card slot 7 to clamp and fix the main door 5 and the door frame 1. The outer wall of the slide rod 304 is sleeved with a spring 305. The model of the spring 305 is selected according to actual use requirements to meet the work needs. The two ends of the spring 305 are fixedly connected to the main door 5 and the slide rod 304 respectively. The spring 305 can drive the slide rod 304 to slide under the action of elasticity;

[0024] By rotating the wheel 302, the end of the sliding rod 304 is retracted into the interior of the main door 5, the handle 8 is held and the main door 5 is rotated in the opposite direction, the door panel 5 is inside the door frame 1, and the wheel 302 is released. The spring 305 drives the sliding rod 304 to slide in the opposite direction under the elastic action, and the end of the sliding rod 304 is inserted into the interior of the card slot 7. The sliding rod 304 cooperates with the card slot 7 to fix the main door 5 inside the doorway 1. There are four sliding rods 404, which can perform multi-directional positioning of the main door 5. The operation is relatively simple, which facilitates the locking of the main door 5, thereby improving the performance of the high-strength anti-deformation steel fire door.

[0025] Working principle:

[0026] When using high-strength anti-deformation steel fire doors for fire protection;

[0027] Main gate attack phase:

[0028] The rotating wheel 302 is rotated, and the rotating wheel 302 drives the disc 301 to rotate. The disc 301 drives the four supporting rods 303 to move. The supporting rods 303 drive the sliding rod 304 to move. The sliding rod 304 slides inside the main door 5 and compresses the spring 305. The end of the sliding rod 304 retracts into the inside of the main door 5 and separates from the slot 7. The handle 8 is pulled, and the handle 8 drives the main door 5 to move. The connecting plate 4 supports and guides the movement of the main door 5, and the main door 5 opens.

[0029] Main door closing stage:

[0030] When the cam 304 is unlocked, the spring 305 is released and the sliding rod 304 is driven to slide in the opposite direction, so that the end of the sliding rod 304 is inserted into the inner groove 7. The sliding rod 304 cooperates with the groove 7 to fix the main door 5 in the inner part of the door opening 1.

[0031] While the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A high-strength, anti-deformation steel fireproof door, comprising a door frame (1) and a groove (2), wherein the groove (2) is arranged inside the door frame (1), and is characterized in that: The interior of the groove (2) is rotatably connected to a connecting plate (4) via a pin shaft, the end of the connecting plate (4) is fixedly connected to the main door (5), a baffle (6) is fixedly connected to the outer wall on the left side of the back of the main door (5), a card slot (7) is provided inside the door frame (1), and a locking mechanism (3) is provided inside the main door (5).

2. A high-strength, anti-deformation steel fire door according to claim 1, characterized in that: The locking mechanism (3) comprises a disc (301), wherein the disc (301) is rotatably connected to the main door (5) via a bearing, a rotating wheel (302) is fixedly connected to the surface of the disc (301), and the back of the disc (301) is rotatably connected to four support rods (303) via a pin shaft, and the ends of the support rods (303) are rotatably connected to a slide rod (304) via a pin shaft, and the outer wall of the slide rod (304) is slidably connected to the main door (5), and the end of the slide rod (304) is engaged with the card slot (7), and the outer wall of the slide rod (304) is sleeved with a spring (305), and the two ends of the spring (305) are fixedly connected to the main door (5) and the slide rod (304) respectively.

3. The high-strength, anti-deformation steel fire door according to claim 1, characterized in that: A handle (8) is fixedly connected to the surface of the main door (5), and a rubber strip (9) is fixedly connected to the outer wall of the main door (5).

4. The high-strength, anti-deformation steel fire door according to claim 1, characterized in that: The main door (5) is fixedly connected to the outer wall of the cylinder (10).

5. The high-strength, anti-deformation steel fire door according to claim 4, characterized in that: An observation window (11) is fixedly connected to the inner wall of the cylinder (10).

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