Heat insulation fireproof door

Abstract

The utility model belongs to the technical field of anti-theft doors, and particularly relates to a heat insulation fireproof door which comprises a door frame and a door plate, the door frame is provided with a cavity located at the top and a straight groove located on the side face, a straight pipe and two baffles are installed in the cavity, and the two baffles are distributed below the straight pipe front and back. The baffle close to one side of the door plate inclines towards the direction close to the straight pipe, the bottom end of the straight pipe extends into the straight groove, and a waterproof negative pressure draught fan is installed in the middle of the straight groove and can convey air on the outer side of the fireproof door into the straight pipe and discharge the air towards the inner side of the fireproof door. The conveyed air obliquely flows downwards in the direction away from the door plate, smoke generated by a fire and staying above the door plate can be blown away from the door plate, the situation that the temperature of the area above the door plate rises due to long-time accumulation of the smoke is avoided, and fresh air on the outer side of the door plate can be conveyed to the inner side of the door plate; survivors near the door plate can breathe.

Description

Technical Field

[0001] The utility model belongs to the technical field of anti-theft doors, and in particular relates to a heat-insulating 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 installed in fire compartments, evacuation stairwells and vertical shafts to prevent the spread of fire and smoke.

[0003] Existing fire doors usually have good sealing properties, which can isolate smoke and prevent the spread of fire. However, this also means that the smoke generated by internal combustion cannot be effectively discharged, and the high-temperature smoke accumulates above the fire door for a long time, causing the temperature of the area above the fire door to rise rapidly, and there is a large temperature difference between the upper and lower areas of the fire door. This temperature difference can easily cause the door panel to deform, resulting in a defect of reduced fire protection ability.

[0004] The utility model designs a heat-insulating fireproof door to solve the above problems. Utility Model Content

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A heat-insulating fireproof door comprises a door frame and a door panel. The door frame is respectively provided with a cavity located at the top and a straight groove located at the side. A straight pipe and two baffles are installed in the cavity. A plurality of through holes are provided at the lower end of the straight pipe. The two baffles are distributed front and back below the straight pipe. The baffle close to the door panel is inclined toward the direction close to the straight pipe, and the top end of the baffle extends to directly below the through hole. A chain transmission mechanism capable of controlling the synchronous rotation of the two baffles is installed in the door frame. The bottom end of the straight pipe extends into the straight groove. A waterproof negative pressure fan is installed in the middle of the straight groove. A front cover plate and a rear cover plate respectively covering the front and rear ends of the straight groove are installed on the door frame. The upper end of the front cover plate extends to the front of the cavity. A protective frame located above the front cover plate is installed on the door frame.

[0007] As a preferred solution, a support shaft is provided in the cavity, a transmission rod is provided at the top of the baffle, and the chain transmission mechanism includes a driving sprocket respectively installed on the support shaft and a driven sprocket installed on the two transmission rods, and a transmission chain is sleeved on the driving sprocket and the driven sprocket.

[0008] As a preferred solution, a gear is installed on the support shaft, and a rack extending into the cavity is installed on the protective frame. When the protective frame moves upward, the top end of the rack can mesh with the gear.

[0009] As a preferred solution, a support platform connected to the straight tube and the transmission rod respectively is installed in the cavity.

[0010] As a preferred solution, a protective net is installed at the air inlet of the protective frame.

[0011] As a preferred solution, the negative pressure fan includes a protective shell and a base, a sealed cavity and a sealed end cover placed at the opening of the sealed cavity are provided in the base, a motor located in the sealed cavity is installed on the sealed end cover, the output shaft of the motor extends to the inside of the protective shell and is connected to the fan, and a through groove corresponding to the protective shell is provided at the upper end of the base.

[0012] As a preferred solution, a sealing plate in contact with the outer wall of the base is provided on the front cover plate, and the sealing plate is located at the lower side of the through groove.

[0013] Compared with the existing technology, the advantages of the utility model are:

[0014] 1. The negative pressure fan of the utility model can convey the air on the outside of the fire door into the straight pipe and discharge it to the inside of the fire door, and under the action of the baffle, the conveyed air can flow downward in a direction away from the door panel, so that the smoke generated by the fire and staying above the door panel can be blown away from the door panel, avoiding the situation where the temperature of the area above the door panel increases due to the long-term accumulation of smoke, and can convey the fresh air on the outside of the door panel to the inside of the door panel for breathing by the survivors passing near the door panel.

[0015] 2. The utility model can directly and continuously pour water into the straight groove. After adjusting the angle of the baffle, the water transported by the straight pipe can be directly sprayed on the door panel, achieving the rapid cooling and fire extinguishing effect on the door panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the utility model.

[0017] Figure 2 It is a schematic diagram of the positional relationship between the cavity and the straight groove of the utility model.

[0018] Figure 3 It is a rear view schematic diagram of the utility model.

[0019] Figure 4 It is a side sectional schematic diagram of the utility model.

[0020] Figure 5 This utility model Figure 2 Schematic diagram of perspective A.

[0021] Figure 6 This utility model Figure 2 Schematic diagram of perspective B.

[0022] Figure 7 This utility model Figure 3 Schematic diagram of the C perspective.

[0023] Figure 8 This utility model Figure 3Schematic diagram of the C-view support platform in the raised state.

[0024] Fig. 9 It is a schematic diagram of the negative pressure fan of the utility model.

[0025] Fig.10 It is a schematic diagram of the internal structure of the negative pressure fan of the utility model.

[0026] The names of the numbers in the figure are: 1. door frame; 2. door panel; 3. cavity; 4. straight groove; 5. straight pipe; 6. baffle; 7. through hole; 8. chain transmission mechanism; 9. negative pressure fan; 10. front cover; 11. rear cover; 12. protective frame; 20. support shaft; 21. transmission rod; 22. driving sprocket; 23. driven sprocket; 24. transmission chain; 25. gear; 26. rack; 27. support platform; 28. protective net; 30. protective shell; 31. base; 32. sealing chamber; 33. sealing end cover; 34. motor; 35. fan; 36. through groove; 37. sealing plate. DETAILED DESCRIPTION

[0027] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments or drawings are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] A heat-insulating fire door, such as Figures 1 to 5 As shown, it comprises a door frame 1 and a door panel 2. The door frame 1 is provided with a cavity 3 at the top and a straight groove 4 at the side. A straight tube 5 and two baffles 6 are installed in the cavity 3. A plurality of through holes 7 are provided at the lower end of the straight tube 5. The two baffles 6 are distributed front and back below the straight tube 5. The baffle 6 close to the door panel 2 is inclined toward the direction close to the straight tube 5, and the top end of the baffle 6 extends to the right below the through hole 7. A chain transmission mechanism 8 capable of controlling the synchronous rotation of the two baffles 6 is installed in the door frame 1.

[0029] like Figure 4 , Figure 7 and Figure 8 As shown, the bottom end of the straight pipe 5 extends into the straight groove 4, a waterproof negative pressure fan 9 is installed in the middle of the straight groove 4, the air inlet of the negative pressure fan 9 faces the outside of the fire door, and the air outlet of the negative pressure fan 9 faces the inside of the fire door. The door frame 1 is provided with a front cover plate 10 and a rear cover plate 11 respectively covering the front and rear ends of the straight groove 4, the upper end of the front cover plate 10 extends to the front of the cavity 3, and a protective frame 12 located above the front cover plate 10 is installed on the door frame 1, and a protective net 28 is installed at the air inlet of the protective frame 12. Under normal circumstances, air can pass through the protective net 28 and the protective frame 12, and when the protective frame 12 is controlled to rise, the opening area at the rear end of the straight groove 4 can be expanded to facilitate water injection into the straight groove 4.

[0030] The negative pressure fan 9 can convey the air outside the fire door into the straight pipe 5 and discharge it to the inside of the fire door, and under the action of the baffle 6, the conveyed air is made to flow downward in a direction away from the door panel 2, so that the smoke generated by the fire and staying above the door panel 2 can be blown away from the door panel 2, so as to avoid the situation where the temperature of the area above the door panel 2 increases due to the long-term accumulation of smoke, and the fresh air outside the door panel 2 can be conveyed to the inside of the door panel 2 for the survivors passing by the door panel 2 to breathe;

[0031] In addition, water can be continuously poured directly into the straight groove 4 , and after adjusting the angle of the baffle 6 , the water transported by the straight pipe 5 can be directly sprayed on the door panel 2 , thereby achieving a rapid cooling and fire extinguishing effect on the door panel 2 .

[0032] like Figure 4 and 6 As shown, there is a support shaft 20 in the cavity 3, a transmission rod 21 is arranged at the top of the baffle 6, and the chain transmission mechanism 8 includes a driving sprocket 22 respectively mounted on the support shaft 20 and a driven sprocket 23 mounted on two transmission rods 21, and a transmission chain 24 is sleeved on the driving sprocket 22 and the driven sprocket 23;

[0033] The two baffles 6 are kept in a synchronous rotation state by chain transmission. In the initial state, the positions of the baffles 6 are as follows: Figure 5 As shown, the baffle 6 close to the door panel 2 is inclined and extends to the bottom of the through hole 7, guiding the discharge direction of the straight pipe 5 to the direction away from the door panel 2. After controlling the two baffles 6 to rotate clockwise at the same time, the baffle 6 close to the door panel 2 is turned to a vertical state, and the other baffle 6 is turned to a state of inclination and extending to the bottom of the through hole 7, guiding the discharge direction of the straight pipe 5 to the direction of the door panel 2.

[0034] A gear 25 is mounted on the support shaft 20, and a rack 26 extending into the cavity 3 is mounted on the protection frame 12. When the protection frame 12 moves upward, the top of the rack 26 can mesh with the gear 25. A support platform 27 connected to the straight tube 5 and the transmission rod 21 is mounted in the cavity 3.

[0035] Controlling the protective frame 12 to rise is a preparatory action for pouring water into the straight groove 4 to quickly cool the door panel 2 and extinguish the fire. It can also drive the rack 26 to drive the gear 25 to rotate, and cooperate with the chain drive to realize the automatic rotation of the baffle 6 to a mode suitable for water flow guidance.

[0036] like Figures 8 to 10As shown, the negative pressure fan 9 includes a protective shell 30 and a base 31, a sealed cavity 32 and a sealed end cover 33 disposed at the opening of the sealed cavity 32 are disposed in the base 31, a motor 34 located in the sealed cavity 32 is mounted on the sealed end cover 33, an output shaft of the motor 34 extends to the inside of the protective shell 30 and is connected to a fan 35, a through groove 36 corresponding to the protective shell 30 is disposed at the upper end of the base 31, a sealing plate 37 in contact with the outer wall of the base 31 is disposed on the front cover 10, and the sealing plate 37 is located at the lower side of the through groove 36;

[0037] The negative pressure fan 9 is disassembled into a protective component for placing the fan 35 and a waterproof component for placing the motor 34, so as to achieve the effects of easy assembly and effective waterproofing.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A heat-insulating fire door, characterized in that: The invention comprises a door frame (1) and a door panel (2), wherein the door frame (1) is provided with a cavity (3) at the top and a straight groove (4) at the side, a straight tube (5) and two baffles (6) are installed in the cavity (3), a plurality of through holes (7) are provided at the lower end of the straight tube (5), the two baffles (6) are distributed front and back below the straight tube (5), the baffle (6) close to the door panel (2) is inclined in a direction close to the straight tube (5), and the top end of the baffle (6) extends to the bottom of the through hole (7), and the door panel (2) is provided with a plurality of through holes (7). A chain transmission mechanism (8) capable of controlling the synchronous rotation of the two baffles (6) is installed in the frame (1); the bottom end of the straight pipe (5) extends into the straight groove (4); a waterproof negative pressure fan (9) is installed in the middle of the straight groove (4); a front cover plate (10) and a rear cover plate (11) are installed on the door frame (1) and cover the front and rear ends of the straight groove (4) respectively; the upper end of the front cover plate (10) extends to the front of the cavity (3); and a protective frame (12) located above the front cover plate (10) is installed on the door frame (1).

2. A heat-insulating fireproof door according to claim 1, characterized in that: A support shaft (20) is arranged in the cavity (3); a transmission rod (21) is arranged at the top of the baffle (6); the chain transmission mechanism (8) comprises a driving sprocket (22) respectively mounted on the support shaft (20) and a driven sprocket (23) mounted on two transmission rods (21); a transmission chain (24) is sleeved on the driving sprocket (22) and the driven sprocket (23).

3. A heat-insulating fireproof door according to claim 2, characterized in that: A gear (25) is mounted on the support shaft (20), and a rack (26) extending into the cavity (3) is mounted on the protection frame (12); when the protection frame (12) moves upward, the top end of the rack (26) can mesh with the gear (25).

4. A heat-insulating fireproof door according to claim 2, characterized in that: A support platform (27) connected to the straight tube (5) and the transmission rod (21) respectively is installed in the cavity (3).

5. The heat-insulating fireproof door according to claim 1, characterized in that: A protective net (28) is installed at the air inlet of the protective frame (12).

6. The heat-insulating fireproof door according to claim 1, characterized in that: The negative pressure fan (9) comprises a protective shell (30) and a base (31); a sealed cavity (32) and a sealed end cover (33) disposed at an opening of the sealed cavity (32) are disposed in the base (31); a motor (34) disposed in the sealed cavity (32) is mounted on the sealed end cover (33); an output shaft of the motor (34) extends to the inside of the protective shell (30) and is connected to a fan (35); and a through groove (36) corresponding to the protective shell (30) is disposed at the upper end of the base (31).

7. The heat-insulating fireproof door according to claim 5, characterized in that: The front cover plate (10) is provided with a sealing plate (37) in contact with the outer wall of the base (31), and the sealing plate (37) is located at the lower side of the through groove (36).

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