Fireproof rolling shutter door capable of conveniently preventing smog from penetrating

Abstract

The utility model relates to the technical field of fire-resistant rolling shutter doors, in particular to a fire-resistant rolling shutter door capable of preventing smoke from penetrating through conveniently. The curtain comprises a curtain piece, a box body is arranged above the curtain piece, movable plates are symmetrically arranged on the front face and the back face of the curtain piece, and bidirectional telescopic plates are fixedly connected to the inner side surfaces of the movable plates. Firstly, the anti-scald handle rotates to drive the two-way screw rod to rotate, then the two-way screw rod rotates to drive the first chain wheel and the second chain wheel to rotate, then the first chain wheel and the second chain wheel rotate to drive the first chain and the second chain to rotate, and the first chain and the second chain rotate to drive other first chain wheels and second chain wheels to rotate. Other first chain wheels and second chain wheels rotate to drive other two-way lead screws to rotate, the two-way lead screws rotate at the same time to drive the moving plate to evenly attach the U-shaped fireproof strips to the curtain pieces, the U-shaped fireproof strips can be well attached to the curtain pieces without glue pasting, and the U-shaped fireproof strips are convenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof rolling shutter doors, in particular to a fireproof rolling shutter door which is convenient for preventing smoke from penetrating. Background Art

[0002] In order to prevent smoke from penetrating, fire shutter doors are usually made of materials with good fire resistance, and the design takes into account the special requirements of smoke prevention.

[0003] There are many existing technologies for fire shutter doors, such as:

[0004] Chinese patent application No. 202320644654.2 discloses a first mounting portion, a second mounting portion, a winding device, and a fire curtain. The first mounting portion and the second mounting portion are arranged opposite each other, and are respectively suitable for installation at opposite ends of a door or window opening. The first mounting portion is provided with a cavity, and the winding device is disposed within the cavity. One end of the fire curtain is connected to the winding device, and the other end of the fire curtain protrudes from the first mounting portion. The end of the fire curtain protruding from the first mounting portion is provided with a first connecting portion. The second mounting portion is provided with a second connecting portion, and the first and second connecting portions are detachably connected. This application is suitable for installation in doorways or window openings of household kitchens, making the fire curtain easy to retract and deploy, facilitating escape for personnel while improving fireproofing and partitioning capabilities.

[0005] However, in the use of existing fireproof rolling shutter doors that are easy to block smoke penetration, the fireproof strips are fixed by glue or adhesive. However, when the glue adheres to the fireproof strips and ages or needs to be replaced, the operation is relatively inconvenient. In addition, the traces left by the glue may affect the aesthetics of the rolling shutter door. In view of this, we propose a fireproof rolling shutter door that is easy to block smoke penetration. Utility Model Content

[0006] The purpose of this utility model is to solve the above shortcomings and provide a fire shutter door that is convenient for blocking smoke penetration;

[0007] To achieve the above-mentioned object, the utility model provides a fireproof rolling shutter door that is convenient for blocking smoke from penetrating, comprising a curtain piece, a box body is provided above the curtain piece, movable plates are symmetrically provided on the front and back sides of the curtain piece, a two-way telescopic plate is fixedly connected to the inner surface of the movable plate, a mounting plate is fixedly connected to the middle end of the inner surface of the two-way telescopic plate, the mounting plates are symmetrically arranged on both sides of the curtain piece, a two-way screw rod is rotatably connected inside the mounting plate, the two-way screw rod is threadedly connected to the inside of the movable plate near the outer surface of the middle end, a U-shaped fireproof strip is provided between the movable plate and the curtain piece, and the U-shaped fireproof strip is symmetrically arranged on the front and back sides of the curtain piece;

[0008] The movable plate moves on the bidirectional screw rod along its length direction.

[0009] As a further improvement of the present technical solution, the number of the bidirectional screw rods is four, the outer surfaces of the four bidirectional screw rods are fixedly connected to the second sprocket, the outer surface of the second sprocket is rotatably connected to the second chain, the second chain is symmetrically arranged on the left and right sides of the curtain piece, and the lower side bidirectional screw rod is fixedly connected to the first sprocket near the outer surface of the middle end, and the outer surface of the first sprocket is rotatably connected to the first chain.

[0010] As a further improvement of the present technical solution, an anti-scalding handle is fixedly connected to the end of the bidirectional screw rod.

[0011] As a further improvement of the present technical solution, a slide groove is provided at the bottom of the box body, a slider is slidably connected inside the slide groove, an L-shaped plate is fixedly connected to the bottom of the slider, a rotating plate is rotatably connected to the top of the L-shaped plate, the top of the rotating plate is rotatably connected to the bottom of the box body, and a clamping plate is fixedly connected to the bottom of the L-shaped plate.

[0012] As a further improvement of the present technical solution, a cylinder is fixedly connected to the outer surface of the L-shaped plate, and the outer surface of the cylinder is fixedly connected to the bottom of the box.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] First, the anti-scald handle rotates to drive the bidirectional screw to rotate, and then the bidirectional screw rotates to drive the first sprocket and the second sprocket to rotate. Then the first sprocket and the second sprocket rotate to drive the first chain and the second chain to rotate, and the first chain and the second chain rotate to drive other first sprockets and second sprockets to rotate. The rotation of other first sprockets and second sprockets drives other bidirectional screws to rotate, so that the bidirectional screws rotate at the same time, driving the movable plate to evenly fit the U-shaped fireproof strip on the curtain piece, so that the U-shaped fireproof strip can fit well with the curtain piece without glue, and the U-shaped fireproof strip is easy to install and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the rotating structure of the utility model;

[0017] Figure 3 For the utility model Figure 2 Schematic diagram of point A;

[0018] Figure 4 This is a schematic diagram of the sealing structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the mobile structure of the utility model;

[0020] Figure 6 For the utility model Figure 5 Schematic diagram of point B.

[0021] The meaning of each number in the figure is:

[0022] 1. Curtain slats; 11. Box body; 111. Slide; 12. Cylinder;

[0023] 2. U-shaped fireproof strip; 21. Two-way telescopic plate; 22. Movable plate; 23. Two-way screw; 24. First sprocket; 25. First chain; 26. Second sprocket; 27. Second chain; 28. Anti-scalding handle; 29. Mounting plate;

[0024] 3. Clamping plate; 31. Slider; 32. Rotating plate; 33. L-shaped plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In order to prevent smoke from penetrating, fire shutter doors are usually made of materials with good fire resistance, and the design takes into account the special requirements of smoke prevention.

[0027] See also Figures 1-6 As shown, this embodiment provides a fire shutter door that is convenient for blocking smoke penetration, including a curtain sheet 1, a box body 11 is provided above the curtain sheet 1, and in order to facilitate the installation and removal of the fireproof strip, the details are as follows: the front and back surfaces of the curtain sheet 1 are symmetrically provided with movable plates 22, the inner surface of the movable plate 22 is fixedly connected with a two-way telescopic plate 21, the middle end of the inner surface of the two-way telescopic plate 21 is fixedly connected with a mounting plate 29, the mounting plates 29 are symmetrically provided on both sides of the curtain sheet 1, and the mounting plates 29 are internally rotatably connected with a two-way screw rod 23, and the two-way screw rod 23 is close to the inner surface of the curtain sheet 1. The outer surface of the middle end is threadedly connected to the inside of the movable plate 22. A U-shaped fireproof strip 2 is provided between the movable plate 22 and the curtain piece 1. The U-shaped fireproof strip 2 is symmetrically arranged on the front and back of the curtain piece 1. The movable plate 22 moves along its length on the bidirectional screw rod 23. However, during use, the fireproof strips of the existing fireproof rolling shutter doors that are easy to block smoke penetration are fixed by glue or adhesive. However, when the glue adheres to the fireproof strip and ages or needs to be replaced, the operation is relatively inconvenient. In addition, the traces left by the glue may affect the aesthetics of the rolling shutter door.

[0028] The improvement of this embodiment is that:

[0029] First, the anti-scald handle 28 rotates to drive the bidirectional screw rod 23 to rotate, and then the bidirectional screw rod 23 rotates to drive the first sprocket 24 and the second sprocket 26 to rotate, and then the first sprocket 24 and the second sprocket 26 rotate to drive the first chain 25 and the second chain 27 to rotate, and the first chain 25 and the second chain 27 rotate to drive other first sprockets 24 and second sprockets 26 to rotate, and other first sprockets 24 and second sprockets 26 rotate to drive other bidirectional screw rods 23 to rotate, so that the bidirectional screw rods 23 rotate at the same time, driving the movable plate 22 to evenly fit the U-shaped fireproof strip 2 on the curtain piece 1, so that the U-shaped fireproof strip 2 can be well fitted to the curtain piece 1 without glue, and the U-shaped fireproof strip 2 is easy to install and disassemble.

[0030] In order to prevent the U-shaped fireproof strip 2 from leaking smoke when a fire occurs, the number of the two-way screw rods 23 is four, and the outer surfaces of the four two-way screw rods 23 are fixedly connected to the second sprocket 26, and the outer surface of the second sprocket 26 is rotatably connected to the second chain 27. The second chain 27 is symmetrically arranged on the left and right sides of the curtain piece 1. The lower two-way screw rod 23 is fixedly connected to the first sprocket 24 near the outer surface of the middle end, and the outer surface of the first sprocket 24 is rotatably connected to the first chain 25. First, the two-way screw rod 23 in the lower right corner rotates to drive the first chain The wheel 24 and the second sprocket 26 rotate, and then the first sprocket 24 and the second sprocket 26 rotate to drive the first chain 25 and the second chain 27 to rotate, and then the first chain 25 and the second chain 27 rotate to drive other first sprockets 24 and second sprockets 26 to rotate, and other first sprockets 24 and second sprockets 26 rotate to drive other bidirectional screw rods 23 to rotate, so that the bidirectional screw rods 23 rotate at the same time, driving the movable plate 22 to fit the U-shaped fireproof strip 2 on the curtain piece 1, and the U-shaped fireproof strip 2 does not leak smoke when a fire occurs.

[0031] In order to facilitate the rotation of the bidirectional screw rod 23, an anti-scalding handle 28 is fixedly connected to the end of the bidirectional screw rod 23. First, the anti-scalding handle 28 rotates to drive the bidirectional screw rod 23 to rotate, and then the bidirectional screw rod 23 is rotated conveniently.

[0032] Secondly, in order to prevent the U-shaped fireproof strip 2 from falling, a sliding groove 111 is opened at the bottom of the box body 11, and a slider 31 is slidably connected inside the sliding groove 111. The bottom of the slider 31 is fixedly connected to an L-shaped plate 33, and the top of the L-shaped plate 33 is rotatably connected to a rotating plate 32. The top of the rotating plate 32 is rotatably connected to the bottom of the box body 11, and the bottom of the L-shaped plate 33 is fixedly connected to the clamping plate 3. First, the rotating plate 32 rotates to drive the slider 31 to slide inward, and then the rotating plate 32 rotates to drive the L-shaped plate 33 and the clamping plate 3 to move inward. The U-shaped fireproof strip 2 is clamped by the inward movement of the clamping plate 3, so that the U-shaped fireproof strip 2 does not fall.

[0033] Considering that the L-shaped plate 33 moves unstably, a cylinder 12 is fixedly connected to the outer surface of the L-shaped plate 33, and the outer surface of the cylinder 12 is fixedly connected to the bottom of the box 11. First, the cylinder 12 extends and retracts to drive the L-shaped plate 33 to move, and then the L-shaped plate 33 is stably moved.

[0034] In summary, the working principle of this solution is as follows:

[0035] When a fire occurs, the anti-scalding handle 28 is manually rotated, and the anti-scalding handle 28 drives the bidirectional screw rod 23 to rotate, and then the bidirectional screw rod 23 rotates to drive the first sprocket 24 and the second sprocket 26 to rotate, and then the first sprocket 24 and the second sprocket 26 rotate to drive the first chain 25 and the second chain 27 to rotate, and the first chain 25 and the second chain 27 rotate to drive another first sprocket 24 and the second sprocket 26 to rotate, and the other first sprocket 24 and the second sprocket 26 rotate to drive another bidirectional screw rod 23 to rotate, so that the bidirectional screw rod 23 rotates at the same time, driving the movable plate 22 to evenly squeeze the U-shaped fireproof strip 2 onto the curtain piece 1, and no gaps will leak smoke due to the different squeezing forces of the movable plate 22 on the U-shaped fireproof strip 2. When a fire occurs, it is more dangerous and urgent, and only the anti-scalding handle 28 needs to be rotated, and the bidirectional screw rod 23 needs to be rotated by the anti-scalding handle 28. The rotation of the first sprocket 24 and the second sprocket 26 drives the other two-way screw rod 23 to rotate simultaneously, so that all U-shaped fireproof strips 2 can be quickly fitted on the curtain sheet 1, with faster speed, and the number of fireproof strips is two, respectively, inside and outside the curtain sheet 1, which can better prevent the spread of fire smoke and harm to human body and block the smoke outside the curtain sheet 1. When the U-shaped fireproof strip 2 needs to be replaced, the cylinder 12 is retracted to drive the slider 31 to slide outward, and the L-shaped plate 33 and the clamping plate 3 move outward, and the L-shaped plate 33 moves outward to drive the rotating plate 32 to rotate, so that the U-shaped fireproof strip 2 can be disassembled. When the U-shaped fireproof strip 2 needs to be installed and fixed, the cylinder 12 is extended to drive the slider 31 to slide inward, and the L-shaped plate 33 and the clamping plate 3 move inward, and the L-shaped plate 33 moves inward to drive the rotating plate 32 to rotate, so that the clamping plate 3 clamps the U-shaped fireproof strip 2, so that the U-shaped fireproof strip 2 is easy to install and replace, and the sealing effect is good.

[0036] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A fireproof rolling shutter door that is convenient for preventing smoke from penetrating, comprising a curtain sheet (1), a box body (11) being arranged above the curtain sheet (1), and characterized in that: The curtain sheet (1) is symmetrically provided with movable plates (22) on the front and back sides, the inner surface of the movable plate (22) is fixedly connected with a bidirectional telescopic plate (21), the middle end of the inner surface of the bidirectional telescopic plate (21) is fixedly connected with a mounting plate (29), the mounting plates (29) are symmetrically provided on both sides of the curtain sheet (1), the inside of the mounting plate (29) is rotatably connected with a bidirectional screw rod (23), the bidirectional screw rod (23) is threadedly connected to the inside of the movable plate (22) near the outer surface of the middle end, a U-shaped fireproof strip (2) is provided between the movable plate (22) and the curtain sheet (1), and the U-shaped fireproof strip (2) is symmetrically provided on the front and back sides of the curtain sheet (1); The movable plate (22) moves on the bidirectional screw rod (23) along its length direction.

2. The fireproof rolling shutter door for preventing smoke penetration according to claim 1, characterized in that: The number of the bidirectional screw rods (23) is four, and the outer surfaces of the four bidirectional screw rods (23) are fixedly connected to the second sprocket (26), and the outer surface of the second sprocket (26) is rotatably connected to the second chain (27), and the second chain (27) is symmetrically arranged on the left and right sides of the curtain sheet (1). The outer surface of the lower bidirectional screw rod (23) near the middle end is fixedly connected to the first sprocket (24), and the outer surface of the first sprocket (24) is rotatably connected to the first chain (25).

3. The fireproof rolling shutter door for preventing smoke penetration according to claim 1, characterized in that: The end of the bidirectional screw rod (23) is fixedly connected with an anti-scalding handle (28).

4. The fireproof rolling shutter door for preventing smoke penetration according to claim 1, characterized in that: The bottom of the box body (11) is provided with a slide groove (111), the inside of the slide groove (111) is slidably connected to a slider (31), the bottom of the slider (31) is fixedly connected to an L-shaped plate (33), the top of the L-shaped plate (33) is rotatably connected to a rotating plate (32), the top of the rotating plate (32) is rotatably connected to the bottom of the box body (11), and the bottom of the L-shaped plate (33) is fixedly connected to a clamping plate (3).

5. The fireproof rolling shutter door for preventing smoke penetration according to claim 4, characterized in that: The outer surface of the L-shaped plate (33) is fixedly connected to a cylinder (12), and the outer surface of the cylinder (12) is fixedly connected to the bottom of the box body (11).

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