Double-curtain fireproof and heat-insulating fireproof rolling door
By introducing a cleaning roller and dust collection disc structure into the fireproof rolling shutter door, the problems of poor cleaning effect and small cleaning range in the existing technology are solved, achieving more comprehensive dust cleaning and collection, and improving the practicality and aesthetics of the fireproof rolling shutter door.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENXING FIRE FIGHTING EQUIP PANYU GUANGZHOU
- Filing Date
- 2025-05-07
- Publication Date
- 2026-05-22
AI Technical Summary
The existing fireproof roller shutter doors have poor cleaning performance, a small cleaning range, and affect aesthetics and practicality.
The design incorporates a cleaning roller and a dust collection disc structure. The cleaning roller is rotated by a rotating shaft to expand the cleaning range, while the dust collection disc is driven to oscillate back and forth by the attraction of opposite poles of magnets, thus achieving effective cleaning and collection of dust.
It improves the cleaning efficiency and effectiveness of fireproof roller shutters, prevents dust from sticking again, and enhances the aesthetics and practicality of fireproof door curtains.
Smart Images
Figure CN224266466U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fireproof rolling shutter door technology, specifically a double-curtain fire-resistant and heat-insulating fireproof rolling shutter door. Background Technology
[0002] Double-curtain fire-resistant roller shutters are high-performance fire-resistant isolation facilities that provide special functions such as fire prevention, smoke isolation, suppression of fire spread, and protection of personnel evacuation. Therefore, they are widely used in commercial buildings, industrial buildings, underground buildings, and public buildings. However, in actual use, after prolonged exposure to the outside environment, dust and impurities can easily accumulate on the surface of the fire-resistant roller shutter. If not cleaned regularly, these impurities will adhere to the surface of the fire-resistant curtain, affecting not only its fire-resistant performance but also its aesthetics and practicality.
[0003] To overcome the above-mentioned defects, in the prior art 1 (Chinese patent application number CN202420029416.5, application date 2024-01-05), a fireproof rolling shutter door is provided. By setting a cleaning brush, the cleaning brush is driven to rotate under the action of the winding shaft, the first gear and the second gear during the opening and closing of the fireproof rolling shutter door, thereby cleaning the fireproof door curtain. This can effectively improve the aesthetics of the fireproof rolling shutter door. Although the prior art can achieve the rotation and cleaning of dust and impurities adhering to the surface of the fireproof door curtain, the cleaning effect of cleaning by rotation alone is not very good. At the same time, the cleaning range is small, and it can only rotate and clean the fireproof door curtain in the same position, which is not practical. Therefore, the double-curtain fire-resistant and heat-insulating fireproof rolling shutter door is proposed, which can effectively solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to provide a double-curtain fire-resistant and heat-insulating fireproof rolling shutter door to solve the problems mentioned in the background art, such as the poor cleaning effect of the current market's rotating cleaning method, the small cleaning range, and the fact that it can only be used to rotate and clean the fireproof door curtain in the same position, resulting in poor practicality.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-curtain fire-resistant and heat-insulating fireproof rolling shutter door, comprising an installation box and a winding roller rotatably installed inside the installation box for winding, wherein a fireproof door curtain is connected to the outer side of the winding roller, and the bottom of the fireproof door curtain extends through to the outer bottom of the installation box; the right end of the winding roller is meshed with a bevel gear set, and the bottom end of the bevel gear set is connected to a handle, and the bottom end of the handle extends through to the outer bottom of the installation box; protective sleeves are provided on both sides of the fireproof door curtain; a rotating shaft is rotatably installed inside the installation box via two positioning plates, and cleaning rollers are symmetrically slidably installed through the surface of the rotating shaft, with the two cleaning rollers corresponding to the fireproof door curtain.
[0006] Preferably, a compression spring is provided at the middle position of the rotating shaft, and cleaning rollers are respectively connected to both ends of the compression spring, and the two cleaning rollers have the same structure.
[0007] Preferably, the cleaning roller is mounted with a mounting rod on the side near the mounting box, and the outer end of the mounting rod is slidably connected to an arc-shaped seat, wherein the arc-shaped seat is mounted on the outside of the positioning plate.
[0008] Preferably, a take-up roller is connected to the outer side of the rotating shaft via a transmission assembly, wherein the diameter of the take-up roller is larger than the diameter of the rotating shaft.
[0009] Preferably, a drive shaft is rotatably mounted on the top inner side of the mounting box, and a row of dust collection trays is installed at equal intervals below the drive shaft, with a fireproof door curtain corresponding to the bottom of the row of dust collection trays.
[0010] Preferably, one end of a torsion spring is connected to the right side of the drive shaft, and the other end of the torsion spring is connected to a mounting box.
[0011] Preferably, a first magnet is installed on the right side of the drive shaft, and a second magnet is correspondingly installed at the bottom of the first magnet. The second magnet is installed on the outer surface of the connecting disc, which is installed on the right side of the take-up roller. The magnetic poles of the first magnet and the second magnet are opposite.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] (1) A cleaning roller is provided. A rotating shaft is installed inside the mounting box, and a cleaning roller is slidably installed on the outside of the rotating shaft through a compression spring. While the fireproof door curtain is being rolled up and moved by the winding roller, the two cleaning rollers installed on the outside of the rotating shaft are driven by the transmission component to clean the dust and impurities adhering to the surface of the fireproof door curtain. This prevents dust and impurities from sticking to the surface of the fireproof door curtain and affecting its fireproof use in the later stage, thus improving its practicality.
[0014] (2) Furthermore, by utilizing the mounting rod installed on the outside of the cleaning roller and the arc-shaped seat installed on the inside of the positioning plate to form a sliding connection, the mounting rod and the arc-shaped seat can be driven to reciprocate and slide at the same time as the rotating shaft drives the cleaning roller to rotate. At this time, the reciprocating arc-shaped seat will drive the cleaning roller to extend its position on the outside of the rotating shaft, thereby expanding the cleaning range of the fireproof door curtain and improving the dust removal efficiency of the fireproof door curtain, making it more practical.
[0015] (3) Furthermore, by using a compression spring in the middle of the rotating shaft and cleaning rollers connected to both ends of the compression spring, the compression spring can elastically reset the reciprocating compression cleaning rollers through its own elastic force, so as to achieve a more comprehensive dust removal treatment for the fireproof door curtain, which is more practical.
[0016] (4) A dust collection tray is provided. A drive shaft is rotatably installed on the top inner side of the mounting box, and a row of dust collection trays is set below the drive shaft. When the winding roller drives the fireproof door curtain to roll up, it drives the second magnet on the outside of the connecting plate to drive the drive shaft to reciprocate through the principle of magnetic attraction between opposite magnetic fields. At this time, the reciprocating drive shaft will drive a row of dust collection trays to swing back and forth, thereby expanding the dust collection range of a row of dust collection trays and preventing the dust after cleaning from being scattered in the air and sticking to the surface of the fireproof door curtain again.
[0017] (5) Furthermore, by using a torsion spring connected to the right end of the drive shaft and a mounting box connected to the other end of the torsion spring, the position of the drive shaft after rotation can be elastically reset by the elastic force of the torsion spring itself, so that the drive shaft can drive a row of dust collection discs to swing back and forth in the later stage, thereby improving the cleaning effect of the cleaning roller. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a partial three-dimensional structural diagram of the mounting box and winding roller of this utility model;
[0020] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0021] Figure 4 This is a partial three-dimensional structural diagram of the winding roller and rotating shaft of this utility model;
[0022] Figure 5 This is a partial three-dimensional structural diagram of the winding roller and drive shaft of this utility model;
[0023] Figure 6 This is a partial three-dimensional structural diagram of the drive shaft and dust collection disc of this utility model.
[0024] In the diagram: 1. Mounting box; 2. Rewind roller; 3. Fireproof door curtain; 4. Protective sleeve; 5. Turning handle; 6. Collection box; 7. Bevel gear set; 8. Shaft; 9. Cleaning roller; 10. Transmission assembly; 11. Positioning plate; 12. Arc-shaped seat; 13. Mounting rod; 14. Drive shaft; 15. Dust suction disc; 16. First magnet; 17. Connecting disc; 18. Second magnet; 19. Torsion spring; 20. Compression spring. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] This utility model provides the following technical solution: a double-curtain fire-resistant and heat-insulating fire-resistant roller shutter door:
[0027] Example 1: To address the shortcomings of existing rotary cleaning methods, such as poor cleaning effect, limited cleaning range, and limited practicality (only able to clean the fireproof door curtain 3 at the same location), the following invention is disclosed: a mounting box 1, and a winding roller 2 rotatably mounted inside the mounting box 1 for winding, with the fireproof door curtain 3 connected to the outer side of the winding roller 2, and the bottom of the fireproof door curtain 3 extending through to the outer bottom of the mounting box 1. Protective sleeves 4 are provided on both sides of the fireproof door curtain 3. The right end of the winding roller 2 is meshed with a bevel gear set 7, and the bottom end of the bevel gear set 7 is connected to a handle 5, with the bottom end of the handle 5 extending through to the outer bottom of the mounting box 1. Inside the mounting box 1, a rotating shaft 8 is rotatably mounted via two positioning plates 11, and cleaning rollers 9 are symmetrically and slidably mounted through the surface of the rotating shaft 8, with each of the two cleaning rollers 9 corresponding to a fireproof door curtain 3.
[0028] A compression spring 20 is provided in the middle of the rotating shaft 8, and cleaning rollers 9 are connected to both ends of the compression spring 20. The two cleaning rollers 9 have the same structure. A mounting rod 13 is installed on the side of the cleaning roller 9 near the mounting box 1, and an arc-shaped seat 12 is slidably connected to the outer end of the mounting rod 13. The arc-shaped seat 12 is installed on the outside of the positioning plate 11. A take-up roller 2 is connected to the outside of the rotating shaft 8 through the transmission assembly 10. The diameter of the take-up roller 2 is larger than the diameter of the rotating shaft 8.
[0029] like Figures 1-4As shown, when the fireproof curtain 3 needs to be rolled up, simply turn the handle 5 to drive the winding roller 2 to reverse through the bevel gear set 7. At this time, the reversed winding roller 2 will drive the fireproof curtain 3 to be rolled up. Subsequently, the rotating winding roller 2 will drive the two cleaning rollers 9 set on the outside of the rotating shaft 8 through the transmission component 10 to rotate and clean the dust and impurities adhering to the surface of the fireproof curtain 3. At this time, the two rotating cleaning rollers 9 will drive the mounting rod 13 to reciprocate and extend through the arc seat 12, which can increase the cleaning range of the two cleaning rollers 9 and prevent dust and impurities from adhering to the surface of the fireproof curtain 3 and affecting its normal fireproof use later. Finally, the compression spring 20 will reset the two compression and moving cleaning rollers 9 by its own elasticity, so as to achieve a more comprehensive dust removal treatment of the fireproof curtain 3 and improve its practicality.
[0030] Example 2 differs from Example 1 in that a dust-collecting mechanism can be used to absorb the dust generated by the cleaning roller 9, preventing the dust from scattering in the air and re-adhering to the surface of the fireproof door curtain 3. This improves the cleaning effect of the cleaning roller 9. The following is disclosed:
[0031] A drive shaft 14 is rotatably mounted on the top inner side of the mounting box 1, and a row of dust collection discs 15 are evenly spaced below the drive shaft 14. A fireproof curtain 3 is located at the bottom of the row of dust collection discs 15. One end of a torsion spring 19 is connected to the right side of the drive shaft 14, and the other end of the torsion spring 19 is connected to the mounting box 1. A first magnet 16 is mounted on the right side of the drive shaft 14, and a second magnet 18 is located at the bottom of the first magnet 16. The second magnet 18 is mounted on the outer surface of the connecting plate 17, which is mounted on the right side of the take-up roller 2. The magnetic poles of the first magnet 16 and the second magnet 18 are opposite.
[0032] like Figures 1-6 As shown, while the take-up roller 2 drives the fireproof door curtain 3 to take up its load, the connecting plate 17 installed on the right end of the take-up roller 2 will drive the second magnet 18 and the first magnet 16 to drive the transmission shaft 14 to rotate through the principle of magnetic attraction between opposite poles. At this time, a row of dust suction discs 15 set on the transmission shaft 14 will swing and absorb the dust scattered after being cleaned by the two cleaning rollers 9. Then, the dust will be transported to the collection box 6 through the hose, so as to prevent the cleaned dust from being scattered in the air and sticking to the surface of the fireproof door curtain 3 again, thus improving the cleaning effect of the cleaning rollers 9. Finally, the position of the transmission shaft 14 after rotation can be elastically reset by the elastic force of the torsion spring 19, so that the transmission shaft 14 can drive the row of dust suction discs 15 to swing back and forth for dust collection in the later stage, which is more practical.
[0033] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0034] The contents not described in detail in this specification are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A double-curtain fire-resistant and heat-insulating fireproof rolling shutter door, comprising a mounting box (1) and a winding roller (2) rotatably installed inside the mounting box (1) for winding, wherein a fireproof door curtain (3) is connected to the outside of the winding roller (2), and the bottom of the fireproof door curtain (3) extends through to the bottom outside of the mounting box (1), and protective sleeves (4) are provided on both sides of the fireproof door curtain (3); Its features are: The right end of the take-up roller (2) is connected to a bevel gear set (7) through a bevel gear set (7), and the bottom end of the bevel gear set (7) is connected to a throttle (5), while the bottom end of the throttle (5) extends through to the bottom outside of the mounting box (1). The mounting box (1) has a rotating shaft (8) mounted inside by two positioning plates (11), and cleaning rollers (9) are symmetrically slidably mounted on the surface of the rotating shaft (8), and the two cleaning rollers (9) correspond to the fireproof door curtain (3).
2. The fire-resistant rolling shutter door with double-curtain fire resistance and heat insulation as described in claim 1, characterized in that: A compression spring (20) is provided at the middle position of the rotating shaft (8), and cleaning rollers (9) are connected to both ends of the compression spring (20), and the two cleaning rollers (9) have the same structure.
3. A double-curtain fire-resistant and heat-insulating fireproof rolling shutter door according to claim 2, characterized in that: The cleaning roller (9) is equipped with an installation rod (13) on the side near the mounting box (1), and the outer end of the installation rod (13) is slidably connected to an arc-shaped seat (12), wherein the arc-shaped seat (12) is installed on the outside of the positioning plate (11).
4. A double-curtain fire-resistant and heat-insulating fireproof rolling shutter door according to claim 2, characterized in that: The outer side of the rotating shaft (8) is connected to a take-up roller (2) via a transmission assembly (10), wherein the diameter of the take-up roller (2) is larger than the diameter of the rotating shaft (8).
5. A double-curtain fire-resistant and heat-insulating fireproof rolling shutter door according to claim 1, characterized in that: The top inner side of the mounting box (1) is rotatably mounted with a drive shaft (14), and a row of dust collection trays (15) are installed at equal intervals below the drive shaft (14), and a fireproof door curtain (3) is corresponding to the bottom of the row of dust collection trays (15).
6. A double-curtain fire-resistant and heat-insulating fire-resistant roller shutter door according to claim 5, characterized in that: The right side of the drive shaft (14) is connected to one end of a torsion spring (19), and the other end of the torsion spring (19) is connected to a mounting box (1).
7. A double-curtain fire-resistant and heat-insulating fire-resistant roller shutter door according to claim 6, characterized in that: A first magnet (16) is installed on the right side of the drive shaft (14), and a second magnet (18) is located at the bottom of the first magnet (16). The second magnet (18) is installed on the outer surface of the connecting disc (17), which is installed on the right side of the take-up roller (2). The magnetic poles of the first magnet (16) and the second magnet (18) are opposite.