Home-entry interlayer type fireproof door

Abstract

The utility model discloses a home-entry sandwich type fireproof door which comprises an outer door plate, an inner door plate and a middle frame, the middle frame is arranged between the outer door plate and the inner door plate, a frame-shaped groove is formed between the outer side of the middle frame and the outer door plate and the inner door plate, push plates are arranged on the four side faces of the outer portion of the middle frame, and a sealing ring of a frame-shaped structure is arranged in the frame-shaped groove. An adjusting plate is arranged in the middle frame, positioning openings are formed in the four side faces of the middle frame, positioning columns are arranged in the positioning openings, and a plurality of extrusion parts used for pushing the positioning columns outwards and achieving sealing between the sealing ring and the door frame are formed in the outer ring face of the adjusting plate in a protruding mode. The fireproof door is simple in structure, the fireproof door is provided with the combination of the inner door plate, the middle frame and the outer door plate, the inner door plate, the middle frame and the outer door plate can be independently detached, replacement and maintenance of the fireproof door are facilitated, and when a fire disaster happens, the gap between the fireproof door and the door frame can be sealed through the sealing ring moved outwards, and fire and smoke can be better blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof doors, in particular to an entrance sandwich type fireproof door. Background Art

[0002] Fire doors refer to doors that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time. They are fireproof partitions with a certain degree of fire resistance, located between fire compartments, evacuation stairwells, vertical shafts, etc. In addition to the functions of ordinary doors, fire doors can also prevent the spread of fire and smoke, and can prevent the spread of fire within a certain period of time to ensure the evacuation of personnel.

[0003] However, current fire doors have a simple structure and the sealing between the fire door and the door frame is poor. Once a fire occurs, flames and smoke can pass through the gap between the fire door and the door frame, causing the fire to spread and smoke to spread, posing a danger to people behind the fire door. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a sandwich fire door for entrance. The assembled fire door is convenient for disassembly and the sealing between the door frame is increased by the sealing ring moved outward to solve the problems raised in the above-mentioned background technology.

[0005] The utility model is realized through the following technical scheme: an entrance sandwich fireproof door, comprising an outer door panel, an inner door panel and a middle frame, wherein the middle frame is arranged between the outer door panel and the inner door panel, a frame-shaped groove is formed between the outer side of the middle frame and the outer door panel and the inner door panel, push plates are arranged on the four side surfaces of the outer side of the middle frame, a sealing ring of a frame-shaped structure is arranged in the frame-shaped groove, the inner side surface of the sealing ring abuts against the push plate, an adjustment plate is arranged inside the middle frame, positioning openings are arranged on the four side surfaces of the middle frame, positioning columns are arranged in the positioning openings, one end of the positioning columns extends to the outer side of the adjustment plate, and the other end is installed on the push plate, a plurality of extrusion parts for pushing the positioning columns outward and realizing sealing between the sealing ring and the door frame are protruded on the outer ring surface of the adjustment plate, a positioning opening is arranged at the center of the adjustment plate, a driving shaft for driving the adjustment plate to rotate is arranged in the positioning opening, and a driving mechanism for driving the adjustment plate to rotate is installed on the inner door panel.

[0006] As a preferred technical solution, the center of the inner side of the inner door panel protrudes to form a thickened portion, one side of the thickened portion contacts one side of the adjustment plate, and an operating groove is provided on the outer side of the inner door panel opposite to the thickened portion, and the operating groove extends to the inside of the thickened portion. A mounting hole is provided at the center of the operating groove, and a sealed bearing is installed in the mounting hole. A shaft rod is installed in the inner ring of the sealed bearing, one end of the shaft rod protrudes to form an insert portion, and one end of the drive shaft is recessed to form a slot, the insert portion is inserted into the slot, and a handwheel is installed at the other end of the shaft rod.

[0007] As a preferred technical solution, a ball bearing is embedded in the center of the inner side of the outer door panel, a rotating shaft is installed in the inner ring of the ball bearing, one end of the rotating shaft is installed on the drive shaft, and a positioning frame is installed on the end of the drive shaft away from the inner door panel, and one side of the positioning frame is in contact with the other side of the adjustment plate.

[0008] As a preferred technical solution, fixing blocks are provided on the four corners on the inner side of the middle frame, a connecting hole is provided at the center of the fixing block and passes through the fixing block, connecting columns are installed on the inner side of the rear door panel opposite to the connecting holes, the connecting columns are inserted into the connecting holes, and a first screw hole is provided at one end of the connecting column, and a second screw hole is provided on the inner door panel opposite to the first screw hole, and bolts are threadedly connected in the opposite first screw holes and second screw holes.

[0009] As a preferred technical solution, the sealing ring is made of silicone rubber material.

[0010] As a preferred technical solution, a card groove is provided on the outer surface of the handwheel, a hidden groove is provided on the inner ring surface of the operating groove, a card block is provided in the opening of the hidden groove, one end of the card block extends to the outside and contacts the outer ring surface of the handwheel, and a compression spring is installed on the other end, and the other end of the compression spring is installed on the inner wall surface of the hidden groove.

[0011] As a preferred technical solution, one side of the middle frame, the push plate and the sealing ring is provided with a mounting opening connecting the three.

[0012] The beneficial effects of the utility model are as follows: the utility model has a simple structure, and the fireproof door is composed of an inner door panel, a middle frame and an outer door panel, and the three can be disassembled independently, which is convenient for replacement and maintenance, and in the event of a fire, the gap between the fireproof door and the door frame can be sealed by the sealing ring moved outward, which can better block the fire and smoke, and the sealing ring does not contact the door frame when not in use, avoiding affecting the opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model after the inner door panel is removed;

[0016] Figure 3This is a schematic diagram of the structure of the utility model after the adjustment plate is further removed;

[0017] Figure 4 It is a structural schematic diagram of the inner door panel in the utility model.

[0018] Among them, 1. Inner door panel; 2. Outer door panel; 3. Sealing ring; 4. Mounting port; 5. Operating slot; 6. Hand wheel; 7. Card slot; 8. Card block; 9. Middle frame; 10. Push plate; 11. Positioning column; 12. Fixed block; 13. Connecting column; 14. Adjusting plate; 15. Extrusion part; 16. Slot; 17. Drive shaft; 18. Rotating shaft; 19. Positioning frame; 20. Thickened part; 21. Insert part; 22. Sealed bearing. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0021] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a sandwich fireproof door for entrance of the utility model comprises an outer door panel 2, an inner door panel 1 and a middle frame 9, wherein the middle frame 9 is arranged between the outer door panel 2 and the inner door panel 1, a frame-shaped groove is formed between the outer side of the middle frame 9 and the outer door panel 2 and the inner door panel 1, a push plate 10 is arranged on the four sides of the outer side of the middle frame 9, a sealing ring 3 of a frame-shaped structure is arranged in the frame-shaped groove, the inner side of the sealing ring 3 is in contact with the push plate 10, an adjusting plate 14 is arranged inside the middle frame 9, and the four sides of the middle frame 9 are A positioning opening is provided, and a positioning column 11 is provided in the positioning opening. One end of the positioning column 11 extends to the outside of the adjustment plate 14, and the other end is installed on the push plate 10. A plurality of extrusion parts 15 for pushing the positioning column 11 outward and realizing the sealing between the sealing ring 3 and the door frame are protruded on the outer ring surface of the adjustment plate 14. A positioning opening is provided at the center of the adjustment plate 14, and a driving shaft 17 for driving the adjustment plate 14 to rotate is provided in the positioning opening. A driving mechanism for driving the adjustment plate 14 to rotate is installed on the inner door panel 1.

[0023] In this embodiment, a thickened portion 20 is protruded at the center of the inner side of the inner door panel 1, and one side of the thickened portion 20 contacts one side of the adjustment plate 14. An operating groove 5 is provided on the outer side of the inner door panel 1 opposite to the thickened portion 20. The operating groove 5 extends to the inside of the thickened portion 20. A mounting hole is provided at the center of the operating groove 5. A sealed bearing 22 is installed in the mounting hole. A shaft rod is installed in the inner ring of the sealed bearing 22. One end of the shaft rod protrudes to form an insert portion 21, and one end of the drive shaft 17 is recessed to form a slot 16. The insert portion 21 is inserted into the slot 16, and a hand wheel 6 is installed at the other end of the shaft rod.

[0024] In this embodiment, a ball bearing is embedded in the center of the inner side of the outer door panel 2, and a rotating shaft 18 is installed in the inner ring of the ball bearing. One end of the rotating shaft 18 is installed on the driving shaft 17. A positioning frame 19 is installed on the end of the driving shaft 17 away from the inner door panel 1, and one side of the positioning frame 19 is in contact with the other side of the adjustment plate 14.

[0025] In this embodiment, fixing blocks 12 are provided on the four corners on the inner side of the middle frame 9, and a connecting hole penetrating the fixing block 12 is provided at the center of the fixing block 12. Connecting columns 13 are installed on the inner side of the rear door panel opposite to the connecting hole. The connecting columns 13 are inserted into the connecting hole, and a first screw hole is provided at one end of the connecting column 13. A second screw hole is provided at the inner door panel 1 opposite to the first screw hole, and bolts are threadedly connected in the first screw hole and the second screw hole relative to each other.

[0026] In this embodiment, the sealing ring 3 is made of silicone rubber material, which has good flame retardant effect and improves the fire prevention effect.

[0027] In this embodiment, a card groove 7 is provided on the outer surface of the handwheel 6, a hidden groove is provided on the inner ring surface of the operating groove 5, and a card block 8 is provided in the opening of the hidden groove. One end of the card block 8 extends to the outside and contacts the outer ring surface of the handwheel 6, and a compression spring is installed on the other end. The other end of the compression spring is installed on the inner wall surface of the hidden groove.

[0028] In this embodiment, a mounting opening 4 is provided on one side of the middle frame 9, the push plate 10 and the sealing ring 3 to connect the three, wherein a lock can be installed in the mounting opening so that the fire door can be fixed together with the door frame.

[0029] During installation, the connecting column on the rear door panel can be inserted into the connecting hole, and the inner door panel can cover the other side of the middle frame. The middle frame, the inner door panel and the outer door panel can be fixed together by bolts. The fixing method of the bolts facilitates the disassembly. After removing the bolts, the inner door panel, the outer door panel and the middle frame can be separated.

[0030] Among them, during installation, the drive shaft on the outer door panel can be inserted into the positioning hole of the adjustment plate until the positioning frame contacts one side of the adjustment plate, and the inserting portion on the inner door panel can be inserted into the slot of the drive shaft, and the thickened portion on the inner door panel contacts the other side of the adjustment plate, thereby centering the adjustment plate. Since the three are all plug-in arrangements, the disassembly of the outer door panel, inner door panel and middle frame is not affected.

[0031] Once a fire occurs, the handwheel can be rotated, and the rotation of the handwheel drives the shaft and the plug-in part, and the rotation of the plug-in part drives the drive shaft and the adjusting plate, and the adjusting plate synchronously drives the extrusion part, and the positioning column can be squeezed outward by the extrusion part, and the movement of the positioning column drives the push plate, and the outward moving push plate can make the sealing ring expand outward by one circle until the outer ring surface of the sealing ring is tightly against the inner surface of the door frame, which can better block the fire and smoke; on the contrary, during normal use, the sealing ring is hidden in the frame groove, and the outer surface of the sealing ring does not contact the inner surface of the door frame, which avoids friction between the fire door and the door frame and affects the opening of the fire door.

[0032] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A sandwich fire door for entrance, characterized by: The invention comprises an outer door panel (2), an inner door panel (1) and a middle frame (9), wherein the middle frame (9) is arranged between the outer door panel (2) and the inner door panel (1), a frame-shaped groove is formed between the outer side of the middle frame (9) and the outer door panel (2) and the inner door panel (1), a push plate (10) is arranged on the four side surfaces of the outer side of the middle frame (9), a sealing ring (3) of a frame-shaped structure is arranged in the frame-shaped groove, the inner side surface of the sealing ring (3) contacts the push plate (10), an adjusting plate (14) is arranged inside the middle frame (9), and positioning openings are arranged on the four side surfaces of the middle frame (9), A positioning column (11) is provided in each positioning opening, one end of each positioning column (11) extends to the outside of the adjustment plate (14), and the other end is mounted on the push plate (10). A plurality of extrusion portions (15) are protruded on the outer ring surface of the adjustment plate (14) for pushing the positioning column (11) outward and achieving sealing between the sealing ring (3) and the door frame. A positioning opening is provided at the center of the adjustment plate (14), and a driving shaft (17) for driving the adjustment plate (14) to rotate is provided in the positioning opening. A driving mechanism for driving the adjustment plate (14) to rotate is installed on the inner door panel (1).

2. The entrance sandwich fire door according to claim 1, characterized in that: The center of the inner side of the inner door panel (1) protrudes to form a thickened portion (20), one side of the thickened portion (20) contacts one side of the adjustment plate (14), an operating groove (5) is provided on the outer side of the inner door panel (1) opposite to the thickened portion (20), the operating groove (5) extends to the inside of the thickened portion (20), a mounting hole is provided at the center of the operating groove (5), a sealed bearing (22) is installed in the mounting hole, a shaft is installed in the inner ring of the sealed bearing (22), one end of the shaft protrudes to form an insert portion (21), one end of the drive shaft (17) is recessed to form a slot (16), the insert portion (21) is inserted into the slot (16), and a hand wheel (6) is installed at the other end of the shaft.

3. The entrance sandwich fire door according to claim 1, characterized in that: A ball bearing is embedded in the center of the inner side of the outer door panel (2), a rotating shaft (18) is installed in the inner ring of the ball bearing, one end of the rotating shaft (18) is installed on the driving shaft (17), and a positioning frame (19) is installed at the end of the driving shaft (17) away from the inner door panel (1), and one side of the positioning frame (19) contacts the other side of the adjustment plate (14).

4. The entrance sandwich fire door according to claim 1, characterized in that: The four corners of the inner side of the middle frame (9) are each provided with a fixing block (12), a connecting hole penetrating the fixing block (12) is provided at the center of the fixing block (12), a connecting column (13) is installed on the inner side surface of the rear door panel opposite to the connecting hole, the connecting column (13) is inserted into the connecting hole, and a first screw hole is provided at one end of the connecting column (13), and a second screw hole is provided on the inner door panel (1) opposite to the first screw hole, and bolts are threadedly connected in the first screw hole and the second screw hole opposite to each other.

5. The entrance sandwich fire door according to claim 1, characterized in that: The sealing ring (3) is made of silicone rubber material.

6. The entrance sandwich fire door according to claim 2, characterized in that: A clamping groove (7) is provided on the outer surface of the hand wheel (6), a hidden groove is provided on the inner ring surface of the operating groove (5), a clamping block (8) is provided in the opening of the hidden groove, one end of the clamping block (8) extends to the outside and contacts the outer ring surface of the hand wheel (6), and a compression spring is installed at the other end, and the other end of the compression spring is installed on the inner wall surface of the hidden groove.

7. The entrance sandwich fire door according to claim 1, characterized in that: A mounting opening (4) for connecting the middle frame (9), the push plate (10) and the sealing ring (3) is provided on one side of the middle frame (9), the push plate (10) and the sealing ring (3).

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