A drum type multi-shaft small space special fireproof curtain

Abstract

This utility model provides a roller-type multi-axis fire-resistant roller shutter for small spaces, which is a double-track, double-curtain fire-resistant roller shutter. The fire-resistant roller shutter includes a frame and a drive device. The frame is composed of two support plates and two fixing rods. Several rollers are evenly spaced within the frame. The roller on one edge is the starting roller, the roller on the other edge is the first roller, and the roller adjacent to the first roller is the second roller. The drive device is connected to the starting roller within the frame. Two layers of roller shutters are rolled up on the starting roller: the upper layer is the first roller shutter, and the lower layer is the second roller shutter. This utility model provides a roller-type multi-axis fire-resistant roller shutter for small spaces, which has lower cost, occupies less installation space, and compared with traditional double-track, double-curtain fire-resistant roller shutters, has a longer fire resistance time and better heat insulation and smoke prevention effects.

Description

Technical Field

[0001] This utility model belongs to the technical field of fireproof roller shutter doors, and in particular relates to a roller-type multi-axis small space extra-grade fireproof roller shutter. Background Technology

[0002] In existing technologies, traditional double-layer fire-resistant roller shutters still commonly use steel roller shutters. However, steel double-layer fire-resistant roller shutters still have the following problems in use: 1. The cost of double-layer steel roller shutters is high; the unit cost of the shutter surface is much higher than that of inorganic fabric roller shutters. 2. The top cover of the double-layer fire-resistant roller shutter (containing double rollers and a drive motor for rolling up the shutter) is generally a round or square column shape, which is large in size, occupies a large installation space, is inconvenient for installation, and encroaches on the passage height of doorways. Whether steel or fabric, the space occupied by the top cover of the double-layer roller shutter is considerable, making it inconvenient to install safety equipment (such as temperature control release devices or fuses). 3. The fire resistance time of double-layer steel fire-resistant roller shutters is only the sum of that of single-layer steel roller shutters; it has not achieved a substantial breakthrough or improvement in fire resistance. Therefore, the research objective of this utility model is to provide a fireproof roller shutter that is low in cost, easy to install, has high safety performance, and has a longer fire resistance time. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a roller-type multi-axis small-space extra-grade fireproof roller shutter.

[0004] The technical solution of this utility model is as follows: a roller-type multi-axis small space extra-grade fireproof roller shutter, wherein the fireproof roller shutter is a double-track double-curtain inorganic fabric fireproof roller shutter, and the fireproof roller shutter includes a frame and a driving device; the frame is composed of two support plates and two fixing rods on its periphery, and a number of rollers are arranged at equal intervals inside the frame; the roller on one side edge is the starting roller, the roller on the other side edge is the first roller, and the roller adjacent to the first roller is the second roller;

[0005] The frame is horizontally positioned at the top of the roller shutter door opening;

[0006] The drive device is connected to the starting reel drive within the frame;

[0007] The support plate is equipped with several gears, and adjacent rollers are driven by gears.

[0008] The starting roller is covered with two layers of roller blinds, the upper layer being the first roller blind and the lower layer being the second roller blind; both the first and second roller blinds have a frame at their starting ends and a bottom beam at their ends, and the two frames are connected to the starting roller by ropes.

[0009] Pressure blocks are attached to the top of the first and second rollers, and one side of the first and second rollers passes under the pressure blocks.

[0010] Furthermore, the drive device includes a drive motor and a transmission, the drive motor is connected to the transmission, and the output shaft of the transmission is connected to the rollers in the frame.

[0011] Furthermore, the interior of the first roller blind has three longitudinally spaced threads, each thread being 2 mm steel wire; the internal structure of the first roller blind is the same as that of the second roller blind.

[0012] Furthermore, both bottom beams are equipped with load-bearing blocks inside.

[0013] Furthermore, the frame of the first roller blind is connected to the starting roller shaft by a rope, the length of which is the distance from the starting roller shaft to the first roller shaft; the curtain body of the first roller blind hangs down from the first roller shaft.

[0014] Furthermore, the frame of the second roller blind is connected to the starting roller by a rope, the length of which is the distance from the starting roller to the second roller; the curtain of the second roller blind hangs down from the second roller.

[0015] Furthermore, the gap between the pressure block and the first roller shaft allows the curtain body of the first roller blind to pass through; the gap between the pressure block and the second roller shaft allows both layers of the first and second roller blinds to pass through together; the pressure block is a flame-retardant and fireproof sponge block.

[0016] The beneficial effects of this utility model are:

[0017] 1. In the technical solution of this utility model, the fireproof roller shutter is a double-curtain fireproof roller shutter, both curtains being inorganic fabric roller shutters, which greatly saves costs compared with traditional steel roller shutters; for specific data comparison, among steel fireproof roller shutters, the price of ordinary steel roller shutters is about 300-800 yuan / square meter, while high-end steel roller shutters can reach more than 1500 yuan / square meter; among inorganic fabric fireproof roller shutters, ordinary inorganic fabric roller shutters are about 180-350 yuan / square meter, while premium inorganic fabric roller shutters are about 360 yuan / square meter.

[0018] 2. In the technical solution of this utility model, the fireproof roller shutter is laid flat at the top of the roller shutter door opening, so that it has sufficient installation space, which facilitates the installation of the temperature control release device and the fuse. Compared with the horizontal roller shutter door, its top can save installation space, increasing the passage height of the roller shutter door by 20-25cm.

[0019] 3. In the technical solution of this utility model, the fireproof roller shutter has stronger fire resistance characteristics compared with traditional steel roller shutters. The fire resistance time of steel fireproof roller shutters can only meet market demands, while the inorganic fabric roller shutter has a longer fire resistance time. Specifically, the fire resistance limit of inorganic fabric fireproof roller shutters usually exceeds 4 hours, while the fire resistance limit of steel fireproof roller shutters is generally 3 hours. The fire resistance time achieved by stacking double-layer inorganic fabric roller shutters can often reach the national special grade standard. Moreover, steel fireproof roller shutters cannot effectively insulate heat due to the high thermal conductivity of metal, and need to be used in conjunction with a sprinkler system to achieve smoke prevention requirements. However, the inorganic fabric roller shutter with double track and double curtain structure, with the space design in the middle, combined with the high heat insulation of its fiber material, can effectively slow down the temperature rise of the unexposed side, and has better heat insulation. Its fiber structure can effectively block the spread of smoke, and can achieve smoke prevention effect without the need for an additional sprinkler system. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the frame in this utility model;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the first and second roller blinds in this utility model;

[0023] Figure 4 for Figure 3 Enlarged view of part A in the middle;

[0024] Figure 5 This is a schematic diagram of the structure of the first roller blind in this utility model;

[0025] Figure 6 for Figure 5 Enlarged view of section B;

[0026] Figure 7 This is one of the reference diagrams showing the usage state of this utility model;

[0027] Figure 8 The second reference figure shows the usage state of this utility model.

[0028] Reference numerals: 1. Frame; 2. Drive unit; 3. First roller blind; 4. Second roller blind; 5. Pressure block; 6. Frame; 7. Bottom beam; 8. Thread; 101. Support plate; 102. Fixing rod; 103. Rope; 104. Starting roller; 105. First roller; 106. Second roller; 201. Drive motor; 202. Gearbox; 701. Weight block. Detailed Implementation

[0029] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the present invention or its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0030] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] like Figure 1-8 As shown, a roller-type multi-axis small space special grade fireproof roller shutter is a double-track double-curtain inorganic fabric fireproof roller shutter. The fireproof roller shutter includes a frame 1 and a driving device 2. The frame 1 is composed of two support plates 101 and two fixing rods 102 on the outside. Several rollers are arranged at equal intervals inside the frame 1. The roller on one edge is the starting roller 104, the roller on the other edge is the first roller 105, and the roller adjacent to the first roller 105 is the second roller 106.

[0032] Frame 1 is horizontally installed at the top of the roller shutter door opening;

[0033] The drive unit 2 is connected to the starting reel 104 inside the frame 1;

[0034] Several gears are installed inside the support plate 101, and the two adjacent rollers are driven by gears.

[0035] Two layers of roller blinds are rolled up on the starting roller 104. The upper roller blind is the first roller blind 3, and the lower roller blind is the second roller blind 4. The starting ends of the first roller blind 3 and the second roller blind 4 are both equipped with frame 6, and the ends of both are equipped with bottom beam 7. The two frame 6 are connected to the starting roller 104 by rope 103.

[0036] A pressure block 5 is provided close to the top of the first roller 105 and the second roller 106, and one side of the first roller blind 3 and the second roller blind 4 both pass under the pressure block 5.

[0037] Specifically, the drive unit 2 includes a drive motor 201 and a transmission 202. The drive motor 201 is connected to the transmission 202 in a transmission connection, and the output shaft of the transmission 202 is connected to the roller in the frame 1 in a transmission connection.

[0038] Specifically, the interior of the first roller blind 3 has three longitudinally spaced threads 8, each thread being 2 mm steel wire; the internal structure of the first roller blind 3 is the same as that of the second roller blind 4.

[0039] Specifically, both bottom beams 7 are equipped with load-bearing blocks 701 inside.

[0040] Specifically, the frame 6 of the first roller blind 3 is connected to the starting roller 104 via a rope 103, the length of which is the distance from the starting roller 104 to the first roller 105; the curtain of the first roller blind 3 hangs down from the first roller 105.

[0041] Specifically, the frame 6 of the second roller blind 4 is connected to the starting roller 104 via a rope 103, the length of which is the distance from the starting roller 104 to the second roller 106; the curtain of the second roller blind 4 hangs down from the second roller 106.

[0042] Specifically, the curtain of the first roller blind 3 passes through the gap between the pressure block 5 and the first roller 105; the two layers of curtains of the first roller blind 3 and the second roller blind 4 pass through the gap between the pressure block 5 and the second roller 106; the pressure block 5 is a flame-retardant and fireproof sponge block.

[0043] During installation, frame 1 can be installed on the wall at the top of the roller shutter door opening. Frame 1 is set inside the door opening. If there is no wall to fix it at the top, it can also be suspended. The first roller shutter 3 and the second roller shutter 4 are laid flat on several rollers inside frame 1. This disperses the installation space and can increase the passage height of the roller shutter door.

[0044] When the roller shutter door needs to be closed, the drive device 2 drives the starting roller 104 to rotate counterclockwise. The first roller shutter 3 and the second roller shutter 4 are pulled down by the bottom beam 7 at their respective bottom ends (the bottom beam 7 is equipped with a load-bearing block 701, which has a large weight) until the roller shutter door is closed. When the roller shutter door needs to be opened, the drive device 2 drives the starting roller 104 to rotate clockwise. The starting roller 104 simultaneously rolls up the first roller shutter 3 and the second roller shutter 4. During the rolling process, the pressure block 5 is close to the first roller 105 and the second roller 106, which can press the first roller shutter 3 and the second roller shutter 4 passing under them, so that the first roller shutter 3 and the second roller shutter 4 generate a certain frictional resistance during the displacement process, which plays a role in flattening and tightening the curtain body of the two layers of roller shutters.

[0045] Among them, such as Figure 5As shown in the figure, the dotted lines represent the threads 8 passing through the curtain body. The threads 8 in the two layers of the roller blind are used to strengthen the overall toughness of the curtain surface, ensuring that the curtain surface can withstand the pulling force from both the starting roller 104 and the bottom beam 7 during the rising and falling process, so as to ensure that the curtain surface is not damaged.

[0046] Secondly, the length of the rope 103 tied to the frame 6 of the first roller blind 3 is the distance from the starting roller 104 to the first roller 105, that is, when the double roller blind is fully closed, the end of the first roller blind 3 just moves above the first roller 105; the length of the rope 103 tied to the frame 6 of the second roller blind 4 is the distance from the starting roller 104 to the second roller 106, that is, when the double roller blind is fully closed, the end of the second roller blind 4 just moves above the second roller 106.

[0047] Regarding the function of rope 103: see [link / reference] Figure 7 The figure shows a schematic diagram of the fireproof roller shutter in its open state. (See attached diagram.) Figure 8 The figure shows a schematic diagram of the fireproof roller shutter in its closed state. The edges 6 of the two roller shutters are not directly connected to the starting roller 104; instead, they are each connected by a section of rope 103. If the two roller shutters were directly connected to the starting roller 104, after the roller shutter door is fully closed, sections of the roller shutter (including the first roller shutter 3 and the second roller shutter 4) would still be laid flat on the frame 1 above several rollers, resulting in resource waste. Using rope 103 saves the curtain area of ​​the two roller shutters, reducing costs, and correspondingly reducing the rolling space of the starting roller 104. As one embodiment of the rope 103, the rope 103 can be made of fire-resistant and flame-retardant rope.

[0048] Furthermore, in practical implementation, similar to traditional fireproof roller shutters, the frame 1 is equipped with a cover, and each layer of the roller shutter is held in place by two guide rails on both sides during its ascent and descent. The cover and guide rails are well-known technologies in the field and are not related to the technical points of this design; therefore, they will not be described in detail here.

[0049] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0050] The embodiments described above only illustrate some implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A roller-type multi-axis small-space extra-grade fireproof roller shutter, wherein the fireproof roller shutter is a double-track, double-curtain inorganic fabric fireproof roller shutter, characterized in that: The fireproof roller shutter includes a frame (1) and a drive device (2); the frame (1) is surrounded by two support plates (101) and two fixing rods (102), and several rollers are arranged at equal intervals inside the frame (1); The roller on one side edge is the starting roller (104), the roller on the other side edge is the first roller (105), and the roller adjacent to the first roller (105) is the second roller (106). The frame (1) is horizontally set at the top of the roller shutter door opening; The drive device (2) is connected to the starting reel (104) inside the frame (1) in a transmission connection; The bracket plate (101) is provided with several gears, and two adjacent rollers are driven by gears. The starting roller (104) is covered with two layers of roller blinds, the upper layer being the first roller blind (3) and the lower layer being the second roller blind (4); the starting ends of the first roller blind (3) and the second roller blind (4) are both provided with frame (6), and the ends of both are provided with bottom beam (7); the two frame (6) are connected to the starting roller (104) by rope (103); A pressure block (5) is provided close to the top of the first roller (105) and the second roller (106), and one side of the first roller blind (3) and the second roller blind (4) passes under the pressure block (5).

2. The roller-type multi-axis small space extra-grade fireproof roller shutter according to claim 1, characterized in that: The drive device (2) includes a drive motor (201) and a transmission (202). The drive motor (201) is connected to the transmission (202) in a transmission, and the output shaft of the transmission (202) is connected to the roller in the frame (1) in a transmission.

3. The roller-type multi-axis small space extra-grade fireproof roller shutter according to claim 1, characterized in that: The first roller blind (3) has three threads (8) arranged at equal intervals in the longitudinal direction inside. The threads (8) are 2 mm steel wires. The internal structure of the first roller blind (3) is the same as that of the second roller blind (4).

4. The roller-type multi-axis small space extra-grade fireproof roller shutter according to claim 1, characterized in that: Both bottom beams (7) are equipped with load-bearing blocks (701).

5. A drum-type multi-axis small-space extra-grade fireproof roller shutter according to claim 1, characterized in that: The frame (6) of the first roller blind (3) is connected to the starting roller (104) by a rope (103), the length of which is the distance from the starting roller (104) to the first roller (105); the curtain of the first roller blind (3) hangs down from the first roller (105).

6. The roller-type multi-axis small space extra-grade fireproof roller shutter according to claim 1, characterized in that: The frame (6) of the second roller blind (4) is connected to the starting roller (104) by a rope (103), the length of which is the distance from the starting roller (104) to the second roller (106); the curtain of the second roller blind (4) hangs down from the second roller (106).

7. A drum-type multi-axis small space extra-grade fireproof roller shutter according to claim 1, characterized in that: The gap between the pressure block (5) and the first roller (105) allows the curtain of the first roller blind (3) to pass through; the gap between the pressure block (5) and the second roller (106) allows both layers of curtains of the first roller blind (3) and the second roller blind (4) to pass through together; the pressure block (5) is a flame-retardant and fireproof sponge block.

Images