Smoke-isolating fireproof rolling shutter door

Abstract

The utility model belongs to the technical field of roller shutter doors, and particularly relates to a smoke-isolating fireproof roller shutter door which comprises a shell, the interior of the shell is divided into an upper containing cavity and a lower limiting cavity, a roller shaft is installed in the containing cavity, an outer roller shutter set and an inner roller shutter set are connected to the roller shaft, and the top ends of the outer roller shutter set and the inner roller shutter set are fixedly connected with the roller shaft. The bottom ends of the outer roller shutter group and the inner roller shutter group extend into the limiting cavity; the outer roller shutter set is composed of a plurality of spliced outer roller shutter plates, and every two adjacent outer roller shutter plates are connected and fixed through a first connecting plate. The inner roller shutter set is composed of a plurality of spliced inner roller shutter plates, every two adjacent inner roller shutter plates are connected and fixed through a second connecting plate, and sealing strips are arranged on the end faces, facing the outer roller shutter plates, of the inner roller shutter plates. When the outer roller shutter plates are tightly attached to the inner roller shutter plates and the outer roller shutter plates are tightly attached to the inner wall of the limiting cavity, the gaps between the outer roller shutter sets and the inner wall of the shell can be greatly reduced, in addition, the gaps between every two adjacent outer roller shutter plates are covered with the sealing strips, and therefore the smoke isolation function is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rolling shutter doors, in particular to a smoke-proof and fire-proof rolling shutter door. Background Art

[0002] The rolling shutter door is a series of door panels with multiple joints. The door rotates up and down in a fixed slide with the scroll above the door as the center.

[0003] In order to achieve the function of free retraction, a certain gap exists between adjacent door panels of rolling shutter doors, so the sealing is insufficient and smoke cannot be effectively blocked in the event of a fire.

[0004] The utility model designs a smoke-proof and fire-proof rolling shutter 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 smoke-proof fireproof rolling shutter door, comprising a shell, wherein the interior of the shell is divided into an upper storage chamber and two lower limit chambers distributed on the left and right, a roller shaft is installed in the storage chamber, an outer rolling shutter group and an inner rolling shutter group are connected to the roller shaft, the top ends of the outer rolling shutter group and the inner rolling shutter group are fixedly connected to the roller shaft, and the bottom ends of the outer rolling shutter group and the inner rolling shutter group extend into the limit chamber;

[0007] The outer rolling curtain group is composed of a plurality of spliced ​​outer rolling curtain plates, and two adjacent outer rolling curtain plates are connected and fixed by a first connecting plate;

[0008] The inner rolling curtain group is composed of a plurality of spliced ​​inner rolling curtain plates, two adjacent inner rolling curtain plates are connected and fixed by a second connecting plate, and a sealing strip is arranged on the end surface of the inner rolling curtain plate facing the outer rolling curtain plate;

[0009] A push plate mechanism capable of pushing the outer rolling shutter plate and the inner rolling shutter plate to closely fit is installed in the limiting cavity, and a power mechanism for driving the roller shaft to rotate is installed in the storage cavity.

[0010] As a preferred solution, the push plate mechanism includes a push plate slidably connected to the limit cavity, the push plate is located on the inner side of the inner rolling shutter plate, a support rod is provided on the second connecting plate, and an inclined platform corresponding to the position of the support rod is provided on the push plate. When the push plate moves toward the direction close to the inner rolling shutter plate, the inclined platform can apply an oblique upward force to the support rod, and a cam assembly is installed in the limit cavity to drive the push plate to move.

[0011] As a preferred solution, the cam assembly includes a bracket installed in the storage cavity, on which a cam and a motor are respectively installed, the motor is dynamically connected to the cam, and the outer wall of the cam is in contact with the inner wall of the push plate.

[0012] As a preferred solution, the power mechanism includes a driving motor and a reduction gearbox installed in the storage cavity, and the reduction gearbox is respectively connected to the driving motor and the roller shaft power.

[0013] As a preferred solution, support frames connected to the left and right ends of the roller shaft are respectively installed in the storage cavity.

[0014] As a preferred solution, end covers are respectively installed on the left and right sides of the storage cavity.

[0015] As a preferred solution, a horizontal plate is connected to the bottom of the outer roller blind group.

[0016] Compared with the existing technology, the advantages of the utility model are:

[0017] 1. The outer rolling curtain group and the inner rolling curtain group designed by the utility model can greatly reduce the gap between the outer rolling curtain group and the inner wall of the outer shell when the outer rolling curtain plate is tightly fitted with the inner rolling curtain plate and the outer rolling curtain plate is tightly fitted with the inner wall of the limiting cavity. In addition, the sealing strip covers the gap between two adjacent outer rolling curtain plates, thereby achieving a smoke isolation function.

[0018] 2. The push plate and the inclined platform designed in the utility model can stagger the inner rolling shutter plate and the outer rolling shutter plate, so that the inner rolling shutter plate is blocked in the gap between two adjacent outer rolling shutter plates, thereby improving the smoke isolation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the utility model.

[0020] Figure 2 It is a front schematic diagram of the utility model.

[0021] Figure 3 It is a schematic diagram of the back side of the utility model.

[0022] Figure 4 It is a schematic diagram of the push plate mechanism of the utility model.

[0023] Figure 5 It is a schematic diagram of the outer roller blind group of the utility model.

[0024] Figure 6 It is a schematic diagram of the inner rolling curtain group of the utility model.

[0025] Figure 7 This utility model Figure 4 Schematic diagram of the positional relationship between the push plate and the inner rolling shutter plate from perspective A.

[0026] Figure 8 This utility model Figure 4 Schematic diagram of the push plate after moving from perspective A.

[0027] The reference numbers in the figure are as follows: 1. outer shell; 2. storage chamber; 3. limit chamber; 4. outer rolling curtain group; 5. inner rolling curtain group; 6. outer rolling curtain plate; 7. first connecting plate; 8. inner rolling curtain plate; 9. second connecting plate; 10. sealing strip; 11. push plate mechanism; 12. power mechanism; 13. cam assembly; 20. push plate; 21. support rod; 22. ramp; 23. bracket; 24. cam; 25. electric motor; 30. drive motor; 31. reduction gearbox; 32. support frame; 33. end cover; 34. cross plate. DETAILED DESCRIPTION

[0028] 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.

[0029] A smoke and fireproof rolling shutter door, such as Figures 1 to 6 As shown, it comprises a housing 1, the interior of the housing 1 is divided into an upper storage chamber 2 and two lower limit chambers 3 distributed on the left and right, a roller is installed in the storage chamber 2, an outer roller curtain group 4 and an inner roller curtain group 5 are connected to the roller, the top ends of the outer roller curtain group 4 and the inner roller curtain group 5 are fixedly connected to the roller, and the bottom ends of the outer roller curtain group 4 and the inner roller curtain group 5 extend into the limit chamber 3;

[0030] Support frames 32 connected to the left and right ends of the roller shaft are installed in the storage chamber 2, the roller shaft is rotatably connected to the support frame 32, and end covers 33 are installed on the left and right sides of the storage chamber 2. A horizontal plate 34 is connected to the bottom of the outer roller curtain group 4.

[0031] The outer rolling curtain group 4 is composed of a plurality of spliced ​​outer rolling curtain plates 6, and two adjacent outer rolling curtain plates 6 are connected and fixed by a first connecting plate 7, and the first connecting plate 7 is rotatably connected to the outer rolling curtain plates 6;

[0032] The inner rolling curtain group 5 is composed of a plurality of spliced ​​inner rolling curtain plates 8. Two adjacent inner rolling curtain plates 8 are connected and fixed by a second connecting plate 9. The second connecting plate 9 is rotatably connected to the inner rolling curtain plates 8. A sealing strip 10 is provided on the end surface of the inner rolling curtain plate 8 facing the outer rolling curtain plate 6. The sealing strip 10 is distributed around the outer edge of the inner rolling curtain plate 8.

[0033] A plate pushing mechanism 11 capable of pushing the outer rolling shutter plate 6 and the inner rolling shutter plate 8 to closely fit together is installed in the limiting cavity 3, and a power mechanism 12 for driving the roller shaft to rotate is installed in the storage cavity 2.

[0034] When the outer rolling curtain plate 6 is tightly fitted with the inner rolling curtain plate 8 and the inner wall of the limiting cavity 3, the gap between the outer rolling curtain group 4 and the inner wall of the outer shell 1 can be greatly reduced. In addition, the sealing strip 10 covers the gap between two adjacent outer rolling curtain plates 6, thereby achieving a smoke isolation function.

[0035] like Figure 4 , Figure 7 and Figure 8 As shown, the push plate mechanism 11 includes a push plate 20 slidably connected to the limit cavity 3, the push plate 20 is located on the inner side of the inner rolling shutter plate 8, a support rod 21 is provided on the second connecting plate 9, and an inclined platform 22 corresponding to the position of the support rod 21 is provided on the push plate 20. When the push plate 20 moves toward the direction close to the inner rolling shutter plate 8, the inclined platform 22 can apply an oblique upward force to the support rod 21, and a cam assembly 13 for driving the push plate 20 to move is installed in the limit cavity 3.

[0036] Under normal circumstances, the positions of the inner rolling curtain plate 8 and the outer rolling curtain plate 6 correspond, that is, when the roller reels the outer rolling curtain group 4 and the inner rolling curtain group 5, the rotation angles of the outer rolling curtain group 4 and the inner rolling curtain group 5 are at the same angle, which can reduce the gap between the outer rolling curtain group 4 and the inner rolling curtain group 5, so that the volume of the outer rolling curtain group 4 and the inner rolling curtain group 5 after rolling up is the same as that of a conventional single rolling curtain group.

[0037] During the forward movement of the push plate 20, the inclined platform 22 first contacts the support rod 21, and under the action of the inclined surface of the inclined platform 22, the support rod 21 is pushed to drive the inner rolling curtain plate 8 to move upward, so that the inner rolling curtain plate 8 and the outer rolling curtain plate 6 are staggered, and the inner rolling curtain plate 8 is blocked in the gap between the two adjacent outer rolling curtain plates 6. Then the push plate 20 presses the inner rolling curtain plate 8 and the outer rolling curtain plate 6 against the inner wall of the limiting cavity 3, thereby closing the gap between the two adjacent outer rolling curtain plates 6 and the gap between the outer rolling curtain plate 6 and the inner wall of the limiting cavity 3, thereby achieving a smoke isolation effect.

[0038] like Figure 3 and Figure 4 As shown, the cam assembly 13 includes a bracket 23 installed in the storage chamber 2, and a cam 24 and a motor 25 are respectively installed on the bracket 23. The motor 25 is connected to the cam 24 by power, and the outer wall of the cam 24 contacts the inner wall of the push plate 20.

[0039] like Figure 2 As shown, the power mechanism 12 includes a driving motor 30 and a reduction box 31 installed in the storage chamber 2, and the reduction box 31 is connected to the driving motor 30 and the roller shaft power respectively.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention fall within the protection scope of the present invention.

Claims

1. A smoke and fireproof rolling shutter door, characterized in that: The housing (1) comprises a housing (1), the interior of the housing (1) being divided into an upper storage chamber (2) and two lower limit chambers (3) distributed on the left and right, a roller shaft being installed in the storage chamber (2), an outer roller curtain group (4) and an inner roller curtain group (5) being connected to the roller shaft, the top ends of the outer roller curtain group (4) and the inner roller curtain group (5) being fixedly connected to the roller shaft, and the bottom ends of the outer roller curtain group (4) and the inner roller curtain group (5) extending into the limit chamber (3); The outer rolling curtain group (4) is composed of a plurality of spliced ​​outer rolling curtain plates (6), and two adjacent outer rolling curtain plates (6) are connected and fixed by means of a first connecting plate (7); The inner rolling curtain group (5) is composed of a plurality of spliced ​​inner rolling curtain plates (8), two adjacent inner rolling curtain plates (8) are connected and fixed by means of a second connecting plate (9), and a sealing strip (10) is provided on the end surface of the inner rolling curtain plate (8) facing the outer rolling curtain plate (6); A push plate mechanism (11) capable of pushing the outer rolling shutter plate (6) and the inner rolling shutter plate (8) to closely fit together is installed in the limiting cavity (3), and a power mechanism (12) for driving the roller shaft to rotate is installed in the storage cavity (2).

2. The smoke and fireproof rolling shutter door according to claim 1, characterized in that: The push plate mechanism (11) comprises a push plate (20) slidably connected to the limit cavity (3), the push plate (20) being located on the inner side of the inner rolling shutter plate (8), a support rod (21) being provided on the second connecting plate (9), and an inclined platform (22) corresponding to the position of the support rod (21) being provided on the push plate (20), when the push plate (20) moves in a direction close to the inner rolling shutter plate (8), the inclined platform (22) can exert an oblique upward force on the support rod (21), and a cam assembly (13) for driving the push plate (20) to move is installed in the limit cavity (3).

3. The smoke and fireproof rolling shutter door according to claim 2, characterized in that: The cam assembly (13) comprises a bracket (23) mounted in the storage chamber (2), a cam (24) and a motor (25) being mounted on the bracket (23), the motor (25) being connected to the cam (24) by power, and an outer wall of the cam (24) being in contact with an inner wall of the push plate (20).

4. The smoke and fireproof rolling shutter door according to claim 1, characterized in that: The power mechanism (12) comprises a driving motor (30) and a reduction box (31) installed in the storage chamber (2); the reduction box (31) is respectively connected to the driving motor (30) and the roller shaft in a power manner.

5. The smoke and fireproof rolling shutter door according to claim 1, characterized in that: Support frames (32) connected to the left and right ends of the roller shaft are respectively installed in the storage cavity (2).

6. The smoke and fireproof rolling shutter door according to claim 1, characterized in that: The storage cavity (2) is respectively provided with end covers (33) on the left and right sides.

7. The smoke and fireproof rolling shutter door according to claim 1, characterized in that: A horizontal plate (34) is connected to the bottom of the outer roller blind group (4).

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