Composite soundproof steel fire door

Abstract

The utility model belongs to fireproof door technical field, concretely is a kind of composite sound insulation steel fireproof door, including door frame and the door panel of rotation connection in its inside, the surface of door panel and the fixed connection of near bottom position has first support block, the lower end of first support block is equipped with article groove, the inner side wall of article groove is slidably inserted with second support block, the lower end of second support block penetrates article groove, the lower end of second support block is rotatably connected with universal wheel, the inner top of article groove and the left edge close place of sliding insertion are equipped with two vertical first guide rod, the lower end of first guide rod is fixedly connected with the upper end of second support block, the inner top of article groove and the right edge close place are equipped with sliding slot.The utility model is equipped with universal wheel and gear mechanism, not only can support door panel, but also can be adjusted according to actual site demand, satisfy the requirement of diversified use scene.

Description

Technical Field

[0001] This utility model relates to the field of fire door technology, and in particular to a composite soundproof steel fire door. Background Technology

[0002] Composite soundproof steel fire doors are multifunctional doors. They feature a steel frame, making them sturdy and durable. Internally, they employ a composite structure, typically designed with five layers: an outer steel plate layer, a first fireproof and soundproof filling layer, a middle steel plate layer, a second fireproof and soundproof filling layer, and an inner steel plate layer. Within a specified time, they can prevent the spread of fire and smoke, ensuring the safety of people and property. They are widely used in locations with high requirements for sound insulation and fire resistance, such as residences, office buildings, and computer rooms.

[0003] For composite soundproof steel fire doors that are large in size and heavy in weight, the hinges need to bear a greater load during use due to their weight, which can easily lead to hinge damage and thus affect the normal opening and closing of the fire door. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned in the background art and to propose a composite soundproof steel fire door.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A composite soundproof steel fire door includes a door frame and a door panel rotatably connected therein. A first support block is fixedly connected to the surface of the door panel near the bottom. A storage groove is provided at the lower end of the first support block. A second support block is slidably inserted into the inner wall of the storage groove, with its lower end penetrating the storage groove. A caster wheel is rotatably connected to the lower end of the second support block. Two vertically arranged first guide rods are slidably inserted into the inner top of the storage groove near the left edge. The lower ends of the first guide rods are fixedly connected to the upper ends of the second support blocks. A sliding groove is provided in the inner top of the storage groove near the right edge. A vertically arranged movable plate is slidably inserted into the inner wall of the sliding groove, with its lower end fixedly connected to the upper end of the second support block. The movable plate is fixedly connected to a vertically arranged rack. A horizontally arranged rotating rod is provided in the slide groove. A gear that meshes with the rack is fixedly sleeved on the outer wall of the rotating rod. The left end of the rotating rod is rotatably connected to the inner left side wall of the slide groove. A hexagonal storage groove is provided on the right side of the first support block. A hexagonal knob is slidably inserted on the inner side wall of the storage groove. The right end of the rotating rod passes through the first support block and extends into the storage groove. The rotating rod and the first support block are rotatably connected. A square connecting rod is slidably inserted on the right end of the rotating rod. The right end of the connecting rod is fixedly connected to the knob. A magnet that attracts the knob is fixedly connected to the left side of the knob and the inner left side wall of the storage groove. The magnet is arranged in a ring.

[0007] Preferably, the second support block is provided with vertically arranged limiting grooves on both the left and right sides, and a limiting block is slidably connected to the inner wall of the limiting groove. One end of the limiting block passes through the limiting groove and is fixedly connected to the inner wall of the storage groove.

[0008] Preferably, fixing blocks are fixedly connected to both sides of the movable plate and near the bottom, and the lower end of the fixing block is fixedly connected to the upper end of the second support block.

[0009] Preferably, two vertically arranged second guide rods are slidably inserted into the upper end of the movable plate, and the upper ends of the second guide rods are fixedly connected to the inner top of the slide groove.

[0010] Preferably, a pull ring is fixedly connected to the right side of the knob.

[0011] Preferably, the caster wheel is made of stainless steel.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model achieves the function of supporting the door panel by setting up universal wheels, a second support block and a first support block, effectively reducing the load on the hinges and extending their service life;

[0014] 2. This utility model, through the combined design of knob, connecting rod, rotating rod, gear, rack and pinion and movable plate, makes it easy for users to flexibly adjust the height of the casters, ensuring that they can make stable contact with the ground in different places, and significantly improving the adaptability of use;

[0015] 3. This utility model achieves reliable anti-loosening locking of the knob by combining a double magnet attraction structure with a hexagonal knob and a hexagonal storage slot, effectively enhancing structural stability;

[0016] 4. This utility model, through the setting of universal wheels and gears, can not only support the door panel, but also adjust its height according to the actual site requirements, thus meeting the requirements of diverse usage scenarios. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a composite soundproof steel fire door proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the first support block of a composite soundproof steel fire door proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of section A of a composite soundproof steel fire door proposed in this utility model.

[0020] In the diagram: 1-Door panel, 2-Door frame, 3-First support block, 4-Second support block, 5-Wheel caster, 6-First guide rod, 7-Limit block, 8-Moving plate, 9-Second guide rod, 10-Rotating rod, 11-Gear, 12-Connecting rod, 13-Knob, 14-Magnet, 15-Pull ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-3A composite soundproof steel fire door includes a door frame 2 and a door panel 1 rotatably connected inside it. A first support block 3 is fixedly connected to the surface of the door panel 1 near the bottom to support the door panel 1. The lower end of the first support block 3 is provided with a storage groove. A second support block 4 is slidably inserted into the inner wall of the storage groove to support the first support block 3. The lower end of the second support block 4 passes through the storage groove. A caster wheel 5 is rotatably connected to the lower end of the second support block 4 to support the second support block 4. The caster wheel 5 is made of stainless steel to improve durability and fire resistance. Vertically arranged limiting grooves are provided on both the left and right sides of the second support block 4. A limiting block 7 is slidably connected to the inner wall of the limiting groove to limit the movement of the second support block 4. One end of the limiting block 7 passes through the limiting groove and is fixedly connected to the inner wall of the storage groove.

[0023] In this embodiment, two vertically arranged first guide rods 6 are slidably inserted into the inner top of the storage slot near the left edge to guide the movement of the second support block 4. The lower end of the first guide rod 6 is fixedly connected to the upper end of the second support block 4. A sliding groove is provided in the inner top of the storage slot near the right edge. A vertically arranged movable plate 8 is slidably inserted into the inner side wall of the sliding groove to drive the second support block 4 to move. The lower end of the movable plate 8 is fixedly connected to the upper end of the second support block 4. Fixing blocks are fixedly connected to the left and right sides of the movable plate 8 near the bottom to support the movable plate 8. The lower end of the fixing blocks is fixedly connected to the upper end of the second support block 4. Two vertically arranged second guide rods 9 are slidably inserted into the upper end of the movable plate 8 to guide the movement of the movable plate 8. The upper end of the second guide rods 9 is fixedly connected to the inner top of the sliding groove.

[0024] In this embodiment, a vertically arranged rack is fixedly connected to the surface of the movable plate 8 to drive the movable plate 8 to move. A horizontally arranged rotating rod 10 is provided in the slide groove to drive the gear 11 to rotate. A gear 11 that meshes with the rack is fixedly sleeved on the outer wall of the rotating rod 10 to drive the rack to move. The left end of the rotating rod 10 is rotatably connected to the inner left side wall of the slide groove. A hexagonal storage groove is provided on the right side of the first support block 3. A hexagonal knob 13 is slidably inserted into the inner side wall of the storage groove to drive the connecting rod 12 to rotate. The right end of the 0 passes through the first support block 3 and extends into the storage slot. The rotating rod 10 is rotatably connected to the first support block 3. A square connecting rod 12 is slidably inserted into the right end of the rotating rod 10 to drive the rotating rod 10 to rotate. The right end of the connecting rod 12 is fixedly connected to the knob 13. Magnets 14 are fixedly connected to the left side of the knob 13 and the left side wall of the storage slot to prevent the knob 13 from falling out of the storage slot. The magnets 14 are ring-shaped. A pull ring 15 is fixedly connected to the right side of the knob 13 to facilitate the user to pull out the knob 13.

[0025] In this embodiment, the knob 13 is first manually pulled out of the hexagonal storage slot by pulling the pull ring 15. Then, the knob 13 is rotated to drive the square connecting rod 12 to rotate. The connecting rod 12 drives the rotating rod 10 to rotate synchronously, which in turn drives the gear 11 to rotate. The meshing action of the gear 11 and the rack pushes the movable plate 8 to move down. The movable plate 8 drives the second support block 4 to move down, so that the universal wheel 5 at the bottom of the second support block 4 contacts the ground. At this time, the universal wheel 5, the second support block 4 and the first support block 3 together form a stable support for the door panel 1. Finally, the hexagonal knob 13 is pushed back into the hexagonal storage slot. The matching shape of the two achieves anti-loosening positioning. At the same time, the mutual attraction of the two magnets 14 further prevents the knob 13 from accidentally falling out of the storage slot.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A composite soundproof steel fire door, comprising a door frame (2) and a door panel (1) rotatably connected therein, characterized in that: A first support block (3) is fixedly connected to the surface of the door panel (1) near the bottom. A storage groove is provided at the lower end of the first support block (3). A second support block (4) is slidably inserted into the inner wall of the storage groove. The lower end of the second support block (4) passes through the storage groove. A caster wheel (5) is rotatably connected to the lower end of the second support block (4). Two vertically arranged first guide rods (6) are slidably inserted into the inner top of the storage groove near the left edge. The lower ends of the first guide rods (6) are fixedly connected to the upper ends of the second support block (4). A sliding groove is provided in the inner top of the storage groove near the right edge. A vertically arranged movable plate (8) is slidably inserted into the inner wall of the sliding groove. The lower end of the movable plate (8) is fixedly connected to the upper end of the second support block (4). A vertically arranged rack is fixedly connected to the surface of the movable plate (8). The slide groove is provided with a horizontally arranged rotating rod (10). A gear (11) that meshes with a rack is fixedly sleeved on the outer side wall of the rotating rod (10). The left end of the rotating rod (10) is rotatably connected to the inner left side wall of the slide groove. The right side of the first support block (3) is provided with a hexagonal storage groove. A hexagonal knob (13) is slidably inserted on the inner side wall of the storage groove. The right end of the rotating rod (10) passes through the first support block (3) and extends into the storage groove. The rotating rod (10) and the first support block (3) are rotatably connected. A square connecting rod (12) is slidably inserted on the right end of the rotating rod (10). The right end of the connecting rod (12) is fixedly connected to the knob (13). The left side of the knob (13) and the inner left side wall of the storage groove are both fixedly connected with magnets (14) that attract each other. The magnets (14) are arranged in a ring.

2. The composite soundproof steel fire door according to claim 1, characterized in that: The second support block (4) has vertically arranged limiting grooves on both the left and right sides. A limiting block (7) is slidably connected to the inner wall of the limiting groove. One end of the limiting block (7) passes through the limiting groove and is fixedly connected to the inner wall of the storage groove.

3. A composite soundproof steel fire door according to claim 1, characterized in that: Fixed blocks are fixedly connected to both sides of the movable plate (8) and near the bottom. The lower end of the fixed block is fixedly connected to the upper end of the second support block (4).

4. A composite soundproof steel fire door according to claim 1, characterized in that: The upper end of the movable plate (8) is slidably fitted with two vertically arranged second guide rods (9), and the upper end of the second guide rods (9) is fixedly connected to the inner top of the slide groove.

5. A composite soundproof steel fire door according to claim 1, characterized in that: A pull ring (15) is fixedly connected to the right side of the knob (13).

6. A composite soundproof steel fire door according to claim 1, characterized in that: The caster wheel (5) is made of stainless steel.

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