Fire-fighting smoke-isolating door with good isolating effect

Abstract

The utility model relates to the technical field of fire protection engineering, and provides a fire protection smoke isolation door with good isolation effect, which comprises a door frame and a door leaf, the outer surface of the door frame is provided with two first notches, the outer surface of the door leaf is provided with two second notches, the inner surface of each first notch is movably embedded with two first telescopic rods, and the inner surface of each second notch is provided with a second telescopic rod. First telescopic heads and moving plates are fixedly connected to the outer surfaces of the two first telescopic rods correspondingly, two fixing rods are movably embedded in the inner surfaces of the two moving plates correspondingly, first springs movably sleeve the outer surfaces of the two fixing rods correspondingly, two sliding blocks are fixedly connected to the outer surfaces of the multiple moving plates correspondingly, and two sealing layers act at the same time. The fire-fighting smoke isolation door is better in smoke isolation effect, the second isolation piece and the first isolation piece are both made of polytetrafluoroethylene, the problem of elasticity reduction caused by aging along with time is solved, the sealing performance of the smoke isolation door is improved, smoke cannot permeate into the smoke isolation door, and the health of personnel is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of fire protection engineering, in particular to a fire protection smoke isolation door with good barrier effect. Background Art

[0002] Smoke doors are the physical barriers of the fire protection system. They work in conjunction with the early warning, evacuation and fire extinguishing systems and are an important part of the overall fire protection safety.

[0003] Although current technology has many advantages, its disadvantage is that because door leaves need to be opened and closed frequently, the sealing strip at the bottom of the door leaves is in contact with the ground for a long time. The sealing strip ages over time, the molecular structure hardens and cracks, and the elasticity decreases, resulting in reduced sealing of the door leaves, making it impossible for the sealing strip to fit tightly to the contact surface, increasing the gap, and allowing smoke to easily penetrate, allowing smoke to penetrate through the door leaves and endanger the health of personnel. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a fire smoke door with good barrier effect to solve the problems raised in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fire smoke-proof door with good barrier effect, comprising: a door frame and a door leaf, the outer surface of the door frame is provided with two notches 1, the outer surface of the door leaf is provided with two notches 2, the inner surfaces of the two notches 1 are movably embedded with two telescopic rods 1, the outer surfaces of the two telescopic rods 1 are fixedly connected with a telescopic head 1 and a movable plate, the inner surfaces of the two movable plates are movably embedded with two fixed rods, the outer surfaces of the two fixed rods are movably sleeved with a spring 1, and the outer surfaces of the plurality of movable plates are fixedly connected with two sliders The outer surfaces of the plurality of sliders are movably sleeved with rocker arms, and the plurality of rocker arms are evenly divided into two groups, and the outer surfaces of the two groups of rocker arms near the bottom are fixedly mounted with rotating shafts, and the outer surfaces of the two rotating shafts are fixedly mounted with two cams, and the inner surface of the door frame is provided with a first sealing mechanism, and the inner surface of the door leaf is provided with a second sealing mechanism. The simultaneous action of the two sealing layers makes the smoke-isolating effect of the fire-fighting smoke-isolating door better, and the materials of the isolation member 2 and the isolation member 1 are both polytetrafluoroethylene, which will not cause the problem of elasticity reduction due to aging over time, thereby improving the sealing of the smoke-isolating door, and smoke will not penetrate the smoke-isolating door.

[0008] As a preferred embodiment, the second sealing mechanism includes a fixed block 2 and two telescopic rods 2, the fixed block 2 being fixedly connected to the inner surface of the door leaf, the two telescopic rods 2 being movably embedded in the inner surfaces of the two slots 2, the bottom of the fixed block 2 being fixedly connected to two limit rods 2, the outer surfaces of the two limit rods 2 being movably sleeved with isolation pieces 2, the outer surfaces of the two limit rods 2 being movably sleeved with elastic pieces 1, the outer surfaces of the two limit rods 2 being fixedly connected with a telescopic head 2 and an angle plate, the outer surfaces of the telescopic rods 2 being movably sleeved with two elastic pieces 2, the outer surfaces of the two angle plates being fixedly connected with two limit blocks, a limit groove being provided on one side of the door leaf close to the two limit blocks, the two limit blocks being movably embedded in the inner surfaces of the two limit grooves, the limit groove can limit the movement trajectory of the limit block to avoid derailment of the limit block.

[0009] As a preferred embodiment, the first sealing mechanism includes two isolating members 1, the bottoms of the two isolating members 1 are fixedly connected with a fixing block 1, the inner surface of the fixing block 1 is movably embedded with a plurality of limiting rods 1, the outer surfaces of the plurality of limiting rods 1 are movably sleeved with springs 2, the plurality of springs 2 are fixedly connected to the bottom inner surface of the door frame, the plurality of springs 2 are fixedly connected to the bottom of the fixing block 1, a sliding hole is provided on one side of the door frame close to the two isolating members 1, the two isolating members 1 are movably embedded in the inner surfaces of the two sliding holes, and the limiting rod 1 can provide a good working environment for the spring 2.

[0010] As a preferred embodiment, the door leaf is connected to the outer surface of the door frame through a hinge, multiple fixing rods are fixedly connected to the inner surface of the door frame, multiple springs are fixedly connected to the inner wall of the door frame, and multiple springs are fixedly connected to the outer surface of the movable plate. The fixing rods can provide a good working environment for springs.

[0011] As a preferred embodiment, the two elastic members 1 are fixedly connected to the bottom of the fixed block 2, the two elastic members 1 are fixedly connected to the top of the isolation member 2, the isolation member 2 is movably embedded in the inner surface of the door frame, and the fixed block 2 can provide good support for the elastic member 1.

[0012] As a preferred embodiment, the two elastic members 2 are fixedly connected to the outer surfaces of the two angled plates, and the two elastic members 2 are fixedly connected to the inner wall of the door leaf, and the elastic members 2 can provide power for the reverse movement of the angled plates.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] In the utility model, the material of the second isolation member and the first isolation member are both polytetrafluoroethylene. The polytetrafluoroethylene sheet is almost not corroded by most chemical substances, is resistant to high temperature and aging, and still maintains good mechanical properties under long-term exposure. The simultaneous action of the two sealing layers makes the smoke isolation effect of the fire smoke door better, and the isolation member 2 of the door leaf and the two isolation members 1 of the door frame are sealed in a telescopic manner. The material of the second isolation member and the first isolation member are both polytetrafluoroethylene, which will not cause the problem of elasticity reduction due to aging over time, thereby improving the sealing of the smoke isolation door, smoke will not penetrate the smoke isolation door, and the health of personnel is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the main structure of a fire-fighting smoke-isolating door with good barrier effect provided by the utility model;

[0016] Figure 2 A schematic diagram of the internal structure of a fire smoke isolation door with good barrier effect provided by the utility model;

[0017] Figure 3 A schematic diagram of the position structure of a limit groove of a fire smoke isolation door with good barrier effect provided by the utility model;

[0018] Figure 4 A schematic diagram of the enlarged structure of the second position of the notch of a fire smoke isolation door with good barrier effect provided by the utility model;

[0019] Figure 5 A schematic diagram of the position structure of a limit block of a fire smoke isolation door with good barrier effect provided by the utility model;

[0020] Figure 6 The utility model provides a partial structural schematic diagram of a fire smoke isolation door with good barrier effect.

[0021] Legend:

[0022] 1. Door frame; 2. Door leaf; 3. Notch 1; 4. Telescopic rod 1; 5. Telescopic head 1; 6. Moving plate; 7. Fixed rod; 8. Spring 1; 9. Sliding block; 10. Limiting groove; 11. Rocker; 12. Rotating shaft; 13. Cam; 14. Limiting block; 15. Limiting rod 1; 16. Spring 2; 17. Fixed block 1; 18. Isolation piece 1; 19. Sliding hole; 20. Fixed block 2; 21. Limiting rod 2; 22. Elastic piece 1; 23. Isolation piece 2; 24. Notch 2; 25. Telescopic rod 2; 26. Telescopic head 2; 27. Elastic piece 2; 28. Angle plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6 The utility model provides a technical solution: a fire smoke-proof door with good barrier effect, comprising a door frame 1 and a door leaf 2, the outer surface of the door frame 1 is provided with two notches 3, the outer surface of the door leaf 2 is provided with two notches 24, the inner surfaces of the two notches 3 are movably embedded with two telescopic rods 4, the outer surfaces of the two telescopic rods 4 are fixedly connected with telescopic heads 5 and moving plates 6, the inner surfaces of the two moving plates 6 are movably embedded with two fixed rods 7, the outer surfaces of the two fixed rods 7 are movably sleeved with springs 8, the outer surfaces of the multiple moving plates 6 are fixedly connected with two sliders 9, the outer surfaces of the multiple sliders 9 Each movable sleeve is provided with a rocker arm 11, and the multiple rocker arms 11 are evenly divided into two groups. The outer surfaces of the two groups of rocker arms 11 near the bottom are fixedly installed with a rotating shaft 12, and the outer surfaces of the two rotating shafts 12 are fixedly installed with two cams 13. The inner surface of the door frame 1 is provided with a first sealing mechanism, and the inner surface of the door leaf 2 is provided with a second sealing mechanism. The simultaneous action of the two sealing layers makes the smoke isolation effect of the fire smoke isolation door better, and the materials of the isolation piece 23 and the isolation piece 18 are both polytetrafluoroethylene, which will not cause the problem of elasticity reduction due to aging over time, thereby improving the sealing of the smoke isolation door, and smoke will not penetrate the smoke isolation door, thereby ensuring the health of personnel.

[0025] like Figure 1-6 As shown, the second sealing mechanism includes a fixed block 20 and two telescopic rods 25, the fixed block 20 is fixedly connected to the inner surface of the door leaf 2, the two telescopic rods 25 are movably embedded in the inner surfaces of the two notches 24, the bottom of the fixed block 20 is fixedly connected with two limit rods 21, the outer surfaces of the two limit rods 21 are movably sleeved with an isolation piece 23, the outer surfaces of the two limit rods 21 are movably sleeved with an elastic piece 22, the outer surfaces of the two telescopic rods 25 are fixedly connected with a telescopic head 26 and an angle plate 28, the outer surface of the telescopic rod 25 is movably sleeved with two elastic pieces 27, the outer surfaces of the two angle plates 28 are fixedly connected with two limit blocks 14, and a limit groove 10 is provided on one side of the door leaf 2 close to the two limit blocks 14, the two limit blocks 14 are movably embedded in the inner surfaces of the two limit grooves 10, and the limit groove 10 can limit the movement trajectory of the limit block 14 to avoid the derailment of the limit block 14 and affect the use of the equipment.

[0026] like Figure 1-6As shown, the first sealing mechanism includes two isolating members 18, the bottoms of the two isolating members 18 are fixedly connected with a fixing block 17, the inner surface of the fixing block 17 is movably embedded with a plurality of limiting rods 15, the outer surfaces of the plurality of limiting rods 15 are movably sleeved with springs 16, the plurality of springs 16 are fixedly connected to the bottom inner surface of the door frame 1, the plurality of springs 16 are fixedly connected to the bottom of the fixing block 17, a sliding hole 19 is provided on one side of the door frame 1 close to the two isolating members 18, the two isolating members 18 are movably embedded in the inner surfaces of the two sliding holes 19, the limiting rods 15 can provide a good working environment for the springs 16, and improve the service life of the springs 15.

[0027] like Figure 1-6 As shown, the door leaf 2 is connected to the outer surface of the door frame 1 through a hinge, a plurality of fixing rods 7 are fixedly connected to the inner surface of the door frame 1, a plurality of springs 8 are fixedly connected to the inner wall of the door frame 1, and a plurality of springs 8 are fixedly connected to the outer surface of the movable plate 6. The fixing rods 7 can provide a good working environment for the springs 8 and improve the service life of the springs 8.

[0028] like Figure 1-6 As shown, two elastic members 22 are fixedly connected to the bottom of the fixed block 20, and two elastic members 22 are fixedly connected to the top of the isolation member 23. The isolation member 23 is movably embedded in the inner surface of the door frame 1. The fixed block 20 can provide good support for the elastic member 22 and extend the service life of the elastic member 22.

[0029] like Figure 1-6 As shown, the two elastic members 27 are fixedly connected to the outer surfaces of the two angle plates 28, and the two elastic members 27 are fixedly connected to the inner wall of the door leaf 2. The elastic members 27 can provide power for the reverse movement of the angle plates 28, so that the angle plates 28 move in the reverse direction.

[0030] Working principle: This device is a fire smoke isolation door with good barrier effect. Multiple springs 16 have elastic potential energy. When closing the door, the two telescopic heads 15 and the telescopic heads 26 squeeze each other, so that the two telescopic heads 15 shrink toward the inside of the two notches 3 on the door frame 1, and the two telescopic heads 26 shrink toward the inside of the two notches 24 on the door leaf 2. As the two telescopic heads 5 shrink, the two telescopic rods 4 drive the two moving plates 6 to move on the multiple fixed rods 7 and squeeze the multiple springs 8, so that the multiple springs 8 obtain elastic potential energy, and the two moving plates 6 drive the multiple fixed rods 7 to move on the multiple fixed rods 7 through the multiple sliders 9. The swing rod 11 makes an arc motion with the two rotating shafts 12 as the center, and drives the multiple cams 13 to rotate through the two rotating shafts 12, so that the multiple cams 13 no longer limit the fixed block 17. At this time, the springs 16 outside the multiple limiting rods 15 release the elastic potential energy, so that the fixed block 17 drives the two isolation members 18 to move on the inner surfaces of the two sliding holes 19, so that the two isolation members 18 extend out of the door frame 1 to form a first sealing layer. When the two telescopic heads 26 move, the two telescopic rods 25 squeeze the two angle plates 28, so that the two angle plates 28 are on the surface of the isolation member 23. The two elastic members 27 are stretched at this time, so that the two elastic members 27 obtain elastic potential energy. The cooperation of the two limiting blocks 14 and the limiting grooves 10 can limit the moving trajectory of the two angle plates 28. As the two angle plates 28 squeeze the isolation member 23, the isolation member 23 moves downward on the outer surface of the two limiting rods 21, and stretches the two elastic members 1 22 on the fixing block 20, so that the two elastic members 1 22 obtain the released elastic potential energy. The isolation member 23 will extend into the interior of the door frame 1 to form a second sealing layer. When the door is opened, multiple springs 1 8 release the elastic potential energy. , indirectly causing the multiple cams 13 to rotate in the opposite direction, pressing down the fixed block 17, so that the multiple springs 2 16 regain elastic potential energy, and the two telescopic rods 1 4 will also indirectly cause the two telescopic heads 1 5 to extend out of the two slots 3 due to the multiple springs 1 8, and the two elastic members 2 27 release the elastic potential energy, so that the two angle plates 28 extend the two telescopic heads 2 26 through the two telescopic rods 2 25, and the two angle plates 28 no longer squeeze the isolation member 23. At this time, the two elastic members 1 22 release the elastic potential energy to move the isolation member 2 23 to the initial position, and the two sealing layers make the smoke isolation effect of the fire smoke isolation door better.

[0031] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A fire smoke door with good barrier effect, comprising: The door frame (1) and the door leaf (2) are characterized in that: the outer surface of the door frame (1) is provided with two notches (3), the outer surface of the door leaf (2) is provided with two notches (24), the inner surfaces of the two notches (3) are both movably embedded with two telescopic rods (4), the outer surfaces of the two telescopic rods (4) are both fixedly connected with a telescopic head (5) and a movable plate (6), the inner surfaces of the two movable plates (6) are both movably embedded with two fixed rods (7), and the outer surfaces of the two fixed rods (7) are both movably sleeved with A spring (8) is provided, and the outer surfaces of the plurality of movable plates (6) are fixedly connected to two sliders (9), and the outer surfaces of the plurality of sliders (9) are movably sleeved with rocker arms (11), and the plurality of rocker arms (11) are evenly divided into two groups, and the outer surfaces of the two groups of rocker arms (11) near the bottom are fixedly installed with rotating shafts (12), and the outer surfaces of the two rotating shafts (12) are fixedly installed with two cams (13), and the inner surface of the door frame (1) is provided with a first sealing mechanism, and the inner surface of the door leaf (2) is provided with a second sealing mechanism.

2. A fire smoke door with good barrier effect according to claim 1, characterized in that: The second sealing mechanism comprises a second fixed block (20) and two second telescopic rods (25), wherein the second fixed block (20) is fixedly connected to the inner surface of the door leaf (2), and the two second telescopic rods (25) are movably embedded in the inner surfaces of the two second slots (24), and the bottom of the second fixed block (20) is fixedly connected to two second limiting rods (21), and the outer surfaces of the two second limiting rods (21) are movably sleeved with two isolating members (23), and the outer surfaces of the two second limiting rods (21) are movably sleeved with elastic Part 1 (22), the outer surfaces of the two telescopic rods (25) are fixedly connected with telescopic heads (26) and angle plates (28), the outer surfaces of the two telescopic rods (25) are movably sleeved with two elastic parts (27), the outer surfaces of the two angle plates (28) are fixedly connected with two limit blocks (14), and the side of the door leaf (2) close to the two limit blocks (14) is provided with limit grooves (10), and the two limit blocks (14) are movably embedded in the inner surfaces of the two limit grooves (10).

3. A fire smoke door with good barrier effect according to claim 1, characterized in that: The first sealing mechanism comprises two isolating members (18), the bottoms of the two isolating members (18) are fixedly connected to a fixing block (17), the inner surface of the fixing block (17) is movably embedded with a plurality of limiting rods (15), the outer surfaces of the plurality of limiting rods (15) are movably sleeved with springs (16), the plurality of springs (16) are fixedly connected to the inner surface of the bottom of the door frame (1), the plurality of springs (16) are fixedly connected to the bottom of the fixing block (17), a sliding hole (19) is provided on one side of the door frame (1) close to the two isolating members (18), and the two isolating members (18) are movably embedded in the inner surfaces of the two sliding holes (19).

4. A fire smoke door with good barrier effect according to claim 1, characterized in that: The door leaf (2) is connected to the outer surface of the door frame (1) via a hinge, a plurality of the fixing rods (7) are fixedly connected to the inner surface of the door frame (1), a plurality of the springs (8) are fixedly connected to the inner wall of the door frame (1), and a plurality of the springs (8) are fixedly connected to the outer surface of the movable plate (6).

5. A fire smoke door with good barrier effect according to claim 2, characterized in that: The two elastic members 1 (22) are fixedly connected to the bottom of the fixed block 2 (20), and the two elastic members 1 (22) are fixedly connected to the top of the isolation member 2 (23), and the isolation member 2 (23) is movably embedded in the inner surface of the door frame (1).

6. A fire smoke door with good barrier effect according to claim 2, characterized in that: The two elastic members (27) are both fixedly connected to the outer surfaces of the two angled plates (28), and the two elastic members (27) are fixedly connected to the inner wall of the door leaf (2).

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