Fireproof door with good sealing performance

Abstract

The utility model discloses a fireproof door with good sealing performance, relates to the technical field of fireproof doors, and aims to solve the problem that certain gaps are easily generated between a protective door and two sides of an inner cavity surface of a door frame and between two fireproof door bodies, so that the sealing effect is poor when the fireproof door is closed. Symmetrically-distributed door bodies are installed on the two sides of an inner cavity of the door frame, symmetrically-distributed strip grooves are formed in the two sides of the inner cavity face of the door frame, sealing strips are inserted into the strip grooves, one sides of the sealing strips penetrate through the strip grooves in the adjacent positions and extend out of the door frame, and the sealing strips are arranged in an L shape. Symmetrically distributed fixing blocks are fixed at the upper and lower ends of the surface of one end of the door body; according to the utility model, a gap between the door body and one side of the inner cavity surface of the door frame and a gap attached to the door body when the door body is closed can be shielded, so that the sealing effect of closing the door body is improved, and the situation that smoke permeates from the gap can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof doors, in particular to a fireproof door with good sealing performance. 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 certain fire resistance, located between fire compartments, evacuation stairwells, vertical shafts, etc.

[0003] The fire door in the prior art is partially arranged as a double-door structure, so that in actual use, a certain gap is easily generated between the protective door and the two sides of the inner cavity surface of the door frame and between the two fire door bodies, resulting in poor sealing effect when the fire door is closed, and smoke is easily infiltrated from the gap, which is not conducive to use.

[0004] Therefore, a fire door with good sealing performance is needed to solve the problem in the prior art that a certain gap is easily generated between the protective door and the two sides of the inner cavity surface of the door frame and between the two fire door bodies, resulting in poor sealing effect when the fire door is closed. Utility Model Content

[0005] In order to solve the above technical problems, a fire door with good sealing performance is provided, which solves the problem in the prior art that certain gaps are easily generated between the protective door and the two sides of the inner cavity surface of the door frame and between the two fire door bodies, resulting in poor sealing effect when the fire door is closed.

[0006] To achieve the above objectives, the technical solution adopted by the utility model is: a fireproof door with good sealing performance, comprising a door frame and a door body, wherein symmetrically distributed door bodies are installed on both sides of the inner cavity of the door frame, and symmetrically distributed strip grooves are opened on both sides of the inner cavity surface of the door frame, and sealing strips are inserted into the interior of the strip grooves, and one side of the sealing strip passes through the interior of the strip grooves at adjacent positions and extends to the outside of the door frame, and the sealing strip is arranged in an L shape, and symmetrically distributed fixing blocks are fixed to the upper and lower ends of the surface of one end of the door body, and two movable plates are arranged at the middle positions of the two groups of the fixing blocks, wherein the surfaces of the two fixing blocks are threadedly connected with threaded rods, and the outer circumferential surfaces of the threaded rods are threadedly connected with threaded sleeves on both sides, and one end of one group of the threaded sleeves is fixed to the surface of the sealing strip at the adjacent position, and one end of the other group of the threaded sleeves is fixed to the surface of the movable plate at the adjacent position.

[0007] Preferably, two of the fixing blocks are located at the bottom of the threaded rod at adjacent positions and are rotatably connected with a rotating rod, and a first gear is fixedly sleeved on the outer circumference of the rotating rod.

[0008] Preferably, a second gear is fixedly sleeved on the outer circumferential surface of the threaded rod at a position close to the first gear, and the first gear is meshingly connected with the second gear at an adjacent position.

[0009] Preferably, the surfaces of the other two fixed blocks are movably inserted with limiting shafts, one side of one group of limiting shafts is fixed to the surface of the sealing strip at the adjacent position, and one side of the other group of limiting shafts is fixed to the surface of the movable plate at the adjacent position.

[0010] Preferably, a blocking block is fixed to the outer circumferential surface of the limiting shaft near the position of the adjacent position fixing block, and the diameter of the blocking block surface is larger than the diameter of the hole inside the adjacent position fixing block.

[0011] Preferably, two symmetrically distributed encryption strips are fixed to the surface of one side of one of the movable plates, and two symmetrically distributed sealing grooves are opened on the surface of the other side of the other movable plate, and one side of the encryption strip extends to the inside of the sealing groove at an adjacent position.

[0012] Compared with the prior art, the advantage of the utility model lies in that when the door body is closed, the two sealing strips can extend to the inside of the adjacent strip grooves and the encryption strip can extend to the inside of the adjacent sealing grooves, so that the gap on one side of the door body and the inner cavity surface of the door frame and the gap that fits when the door body is closed can be shielded, thereby improving the sealing effect of the door body closing, thereby avoiding the occurrence of smoke infiltration from the gap, and improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model in the front view direction;

[0014] Figure 2 For the utility model Figure 1 A schematic diagram of the structure enlargement at the center A;

[0015] Figure 3 It is an exploded schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 4 It is a three-dimensional structural schematic diagram of the local structure of the utility model.

[0017] The numbers in the figure are:

[0018] 1. Door frame; 2. Door body; 3. Sealing strip; 4. Strip groove; 5. Movable plate; 6. Threaded rod; 7. Threaded sleeve; 8. Rotating rod; 9. First gear; 10. Second gear; 11. Fixed block; 12. Limiting shaft; 13. Block; 14. Sealing groove; 15. Encryption strip. DETAILED DESCRIPTION

[0019] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0020] Example 1

[0021] Reference Figure 1 , Figure 2 and Figure 3 As shown, a fireproof door with good sealing performance comprises a door frame 1 and a door body 2, wherein the door bodies 2 are symmetrically installed on both sides of the inner cavity of the door frame 1, and strip grooves 4 are symmetrically distributed on both sides of the inner cavity surface of the door frame 1, and sealing strips 3 are inserted in the strip grooves 4, and one side of the sealing strip 3 passes through the interior of the strip grooves 4 at adjacent positions and extends out of the door frame 1, and the sealing strip 3 is arranged in an L shape, and the upper and lower ends of the surface of one end of the door body 2 are fixed with symmetrically distributed fixing blocks 11, and two movable plates 5 are arranged at the middle position of the two groups of fixing blocks 11, wherein the surfaces of the two fixing blocks 11 are threadedly connected with threaded rods 6, and the two sides of the outer circumferential surfaces of the threaded rods 6 are threadedly connected with threaded sleeves 7, wherein one end of one group of threaded sleeves 7 is fixed to the surface of the sealing strip 3 at adjacent positions, and one end of the other group of threaded sleeves 7 is fixed to the surface of the movable plate 5 at adjacent positions, and when the door body 2 is closed, the two sealing strips 3 can extend to the interior of the strip grooves 4 at adjacent positions, so as to shield the gap between the door body 2 and one side of the inner cavity surface of the door frame 1, thereby improving the sealing effect of the door body 2.

[0022] Please refer to Figure 1 , Figure 2 and Figure 3 As shown, two fixed blocks 11 are located at the bottom of the threaded rod 6 at adjacent positions and penetrate through and are rotatably connected with a rotating rod 8. A first gear 9 is fixedly sleeved on the outer circumference of the rotating rod 8, and a second gear 10 is fixedly sleeved on the outer circumference of the threaded rod 6 near the first gear 9. The first gear 9 is meshingly connected with the second gear 10 at the adjacent position. By rotating the rotating rod 8, the first gear 9 can be in a rotating state, so that the first gear 9 can mesh with the second gear 10 to enable the threaded rod 6 to be in a rotating state.

[0023] Please refer to Figure 1 and Figure 4As shown, the surfaces of the other two fixed blocks 11 are movably inserted with limiting shafts 12, one side of one group of limiting shafts 12 is fixed to the surface of the adjacent sealing strip 3, and one side of the other group of limiting shafts 12 is fixed to the surface of the adjacent movable plate 5. Since the limiting shafts 12 are restricted by the fixed blocks 11, the limiting shafts 12 can only extend in the horizontal direction, so as to limit the adjacent sealing strip 3 or the movable plate 5, so that the sealing strip 3 and the movable plate 5 can extend in the horizontal direction.

[0024] Example 2

[0025] Further in the embodiments, please refer to Figure 1 and Figure 4 As shown, a blocking block 13 is fixed to the outer circumferential surface of the limit shaft 12 near the adjacent position fixed block 11, and the diameter of the surface of the blocking block 13 is larger than the diameter of the hole inside the adjacent position fixed block 11. Due to the size of the limit shaft 12, it is prevented from detaching from the inner wall of the adjacent position fixed block 11 under the interference effect with the surface of the fixed block 11.

[0026] Please refer to Figure 1 and Figure 4 As shown, two symmetrically distributed encryption strips 15 are fixed to the surface of one side of one movable plate 5, and two symmetrically distributed sealing grooves 14 are opened on the surface of the other side of the other movable plate 5. One side of the encryption strip 15 extends to the inside of the sealing groove 14 at the adjacent position. Since the surface of one end of the movable plate 5 fits the surface of the door body 2 and the encryption strip 15 can extend to the inside of the sealing groove 14, the encryption strip 15 can play a shielding role on the gap that fits when the door body 2 is closed, thereby improving the sealing effect of the door body 2.

[0027] Working principle: In actual use, when the user needs to improve the sealing effect of the door body 2 when the door body 2 is closed, the user rotates the rotating rod 8 so that the first gear 9 can be in a rotating state, so that the first gear 9 can be in a rotating state under the meshing action with the second gear 10, and because the two sides of the outer circumference of the threaded rod 6 are provided with external thread structures in opposite directions, and the sealing strip 3 and the movable plate 5 are limited by the adjacent position limiting shaft 12, so that when the threaded rod 6 rotates, the internal thread structure on the inner wall of the threaded sleeve 7 and the outer wall of the threaded rod 6 are in contact with each other. Under the cooperation between the external thread structures at the corresponding positions of the circumferential surface, the movable plate 5 and the sealing strip 3 at adjacent positions can move away from each other until the sealing strip 3 moves in the horizontal direction so that one side of it can extend to the inside of the strip groove 4, and until the movable plate 5 moves in the direction of approaching each other so that the encryption strip 15 can extend to the inside of the sealing groove 14 at the adjacent position, so that the sealing strip 3 can block the gap on one side of the inner cavity surface of the door body 2 and the door frame 1, and the encryption strip 15 can block the direction in which the door body 2 is fitted, thereby improving the sealing effect when the door body 2 is closed.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fireproof door with good sealing performance, comprising a door frame (1) and a door body (2), characterized in that: The inner cavity of the door frame (1) is provided with symmetrically distributed door bodies (2), and the inner cavity surface of the door frame (1) is provided with symmetrically distributed strip grooves (4) on both sides, and a sealing strip (3) is inserted into the inner part of the strip groove (4), and one side of the sealing strip (3) passes through the inner part of the strip groove (4) at an adjacent position and extends out of the door frame (1). The sealing strip (3) is arranged in an L shape, and the upper and lower ends of the surface of one end of the door body (2) are fixed with symmetrically distributed fixing blocks (11), and two movable plates (5) are arranged at the middle position of the two groups of the fixing blocks (11), wherein the surfaces of the two fixing blocks (11) are threadedly connected with threaded rods (6), and the outer circumferential surfaces of the threaded rods (6) are threadedly connected with threaded sleeves (7) on both sides, wherein one end of one group of the threaded sleeves (7) is fixed to the surface of the adjacent sealing strip (3), and one end of the other group of the threaded sleeves (7) is fixed to the surface of the adjacent movable plate (5).

2. A fireproof door with good sealing performance according to claim 1, characterized in that: Two of the fixed blocks (11) are located at the bottom of the adjacent threaded rods (6) and are rotatably connected to a rotating rod (8). The outer peripheral surface of the rotating rod (8) is fixedly sleeved with a first gear (9).

3. A fireproof door with good sealing performance according to claim 2, characterized in that: A second gear (10) is fixedly sleeved on the outer circumferential surface of the threaded rod (6) at a position close to the first gear (9), and the first gear (9) is meshingly connected with the second gear (10) at an adjacent position.

4. A fireproof door with good sealing performance according to claim 2, characterized in that: The surfaces of the other two fixed blocks (11) are movably inserted with limiting shafts (12), one side of one group of limiting shafts (12) is fixed to the surface of the sealing strip (3) at the adjacent position, and one side of the other group of limiting shafts (12) is fixed to the surface of the movable plate (5) at the adjacent position.

5. A fireproof door with good sealing performance according to claim 4, characterized in that: A blocking block (13) is fixed to the outer peripheral surface of the limiting shaft (12) near the adjacent position fixing block (11), and the diameter of the surface of the blocking block (13) is greater than the diameter of the hole inside the adjacent position fixing block (11).

6. A fireproof door with good sealing performance according to claim 1, characterized in that: Two symmetrically distributed encryption strips (15) are fixed on the surface of one side of one of the movable plates (5), and two symmetrically distributed sealing grooves (14) are opened on the surface of the other side of the other movable plate (5), and one side of the encryption strip (15) extends to the inside of the adjacent sealing groove (14).

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