Telescopic fireproof roller shutter

Abstract

The utility model discloses a telescopic fire resisting shutter which comprises a fixing cross rod and fixing rings, the fixing rings are evenly fixed to the outer side of the fixing cross rod, and adjusting grooves are formed in the two sides of the interior of the fixing cross rod. The adjusting rod is arranged, in the using process, the knob is rotated to drive the screw rod and the screw hole to be loosened, the adjusting rod is pulled outwards to drive the fixing disc to move outwards so as to adapt to door frames of different sizes, reverse operation is conducted after adjustment is completed, the screw rod and the screw hole are connected, and the pressing plate can be attached to the fixing transverse rod. The fireproof roller shutter is simple to operate and convenient to use, the extension curtain is arranged and connected with the fireproof roller shutter body through the first hook face sticker and the first suede face sticker, when a narrow door is met, the extension curtain can be folded, when a wide door is met, the folding part can be opened to block the door, and therefore the effect of adjusting the width of the fireproof roller shutter body can be achieved; and the application range is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof rolling curtains, in particular to a retractable fireproof rolling curtain. Background Art

[0002] During firefighting and rescue, in order to prevent extreme fire phenomena such as flashover and backdraft caused by opening the door, it is necessary to fix fireproof roller shutters on the door;

[0003] Chinese patent authorization announcement number CN 209398303 U discloses a fireproof roller shutter, including ceramic fiber cloth, a roller, a roller handle and a fireproof belt. The roller handle is fixed to one end of the roller, the ceramic fiber cloth is wound on the roller, the roller handle is tied with an insulation belt, the sides of the ceramic fiber cloth are all wrapped with fireproof belts, the first side of the ceramic fiber cloth is paved with fireproof decorative cloth, the first side of the ceramic fiber cloth is paved with fireproof heat-insulating cotton, and the fireproof heat-insulating cotton is paved with heat-radiation-proof cloth. Beneficial effects of the utility model: the utility model is provided with ceramic fiber cloth, a roller, a roller handle and a fireproof belt. The ceramic fiber cloth is wound on the roller, and the hand-cranked roller handle drives the roller to rotate, thereby realizing the lifting and lowering of the roller shutter; the insulation belt on the roller handle has a heat-insulating effect, the ceramic fiber cloth, the fireproof decorative cloth and the fireproof belt have a fireproof effect, the fireproof heat-insulating cotton and the heat-radiation-proof cloth have a fireproof heat-insulating effect, and the multiple fireproof layers thereby improve the fireproof effect of the roller shutter;

[0004] The above-mentioned existing technical solutions have the following shortcomings: the scope of application of the technical solutions is limited when in use, the size of the blocked door body is inconvenient to adjust, it cannot adapt to residential fires, and there is a certain optimization space. Therefore, it is necessary to design a retractable fireproof roller shutter to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a retractable fireproof rolling shutter to solve the problem of inconvenience in adjusting the size of the applicable range proposed in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a retractable fireproof roller shutter, comprising a fixed crossbar and a fixed ring, wherein the fixed ring is evenly fixed on the outer side of the fixed crossbar;

[0007] Adjustment slots are provided on both sides of the interior of the fixed crossbar, and adjustment blocks are movably connected inside the adjustment slots, adjustment rods are fixed on the outsides of the adjustment blocks, and fixed plates are fixed on the outsides of the adjustment rods, screw holes are provided inside the adjustment blocks, pressure plates are connected on both sides of one end of the fixed crossbar, and a knob is rotatably connected to one end of the pressure plate, a screw is connected to the inside of the knob, and the screw is threadedly connected to the screw hole;

[0008] The bottom end of the fixed ring is connected to the fireproof roller shutter body, and the two sides of the fireproof roller shutter body are connected to the extension curtain, the top of one end of the extension curtain is fixed with a winding belt, the bottom end of the extension curtain is provided with a first counterweight block, and the bottom end of the fireproof roller shutter body is provided with a second counterweight block.

[0009] Preferably, the outer sides of the fixing plates are provided with anti-skid pads, and the outer sides of the anti-skid pads are evenly provided with anti-skid protrusions.

[0010] Preferably, the cross-section of the anti-slip protrusions is semicircular, and the material of the anti-slip pad is rubber.

[0011] Preferably, a connecting ring is fixed to the bottom of one end of the fireproof roller shutter body, telescopic through holes are evenly opened inside the fireproof roller shutter body, a winding column is fixed to the top of one end of the fireproof roller shutter body, a pull rope is connected to the outside of the connecting ring, and one end of the pull rope passes through the telescopic through hole and is wrapped around the outside of the winding column.

[0012] Preferably, the inner side of the extension curtain is connected to a first hook surface sticker, both sides of one end of the fireproof rolling curtain body are connected to a first velvet surface sticker, and the first velvet surface sticker is connected to the first hook surface sticker.

[0013] Preferably, a through-groove channel is provided at the top end of the winding belt, a second hook sticker and a second suede sticker are respectively fixed to the two ends of the winding belt, and a through-groove portion is provided at the bottom of the winding belt.

[0014] Preferably, the through-groove portion is in an inwardly inclined state, and the diameter of the through-groove portion is smaller than the inner diameter of the through-groove channel.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the retractable fireproof roller shutter realizes the function of being easy to adjust;

[0016] By providing an adjustment rod, during use, the knob is turned to loosen the screw rod and the screw hole, and the adjustment rod is pulled outward to drive the fixed plate to move outward, so as to adapt to door frames of different sizes. After the adjustment is completed, the reverse operation is performed to connect the screw rod with the screw hole and the pressure plate with the fixed cross bar. The operation is simple and convenient to use. An extension curtain is provided, and it is connected to the fireproof rolling curtain body through a first hook surface sticker and a first velvet surface sticker. When encountering a narrow door, the extension curtain can be folded. When encountering a wider door, the folded part can be opened to achieve a blocking effect on the door, thereby playing a role in adjusting the width of the fireproof rolling curtain body to improve its scope of application;

[0017] Based on the use of the above-mentioned extension curtain, the outer winding belt of the extension curtain is wound around the outer side of the adjustment rod, and the through-groove portion passes through the through-groove channel, and the second hook surface sticker and the second velvet surface sticker are connected to play the function of fixing the extension curtain;

[0018] By providing a pull rope, which passes through the telescopic through holes in sequence and is wound around the outside of the winding column, when the pull rope is loosened during use, the fireproof roller shutter body automatically droops to achieve a rapid shielding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the fireproof rolling curtain main body and the extension curtain of the utility model;

[0022] Figure 3 It is a schematic diagram of the forward and reverse three-dimensional structure of the winding belt of the utility model;

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the adjustment rod of the utility model;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure inside the fireproof rolling shutter body and the extension curtain of the utility model.

[0025] Explanation of the reference numerals in the figure: 1. Fixed cross bar; 2. Fixed ring; 3. Adjusting rod; 4. Fixed plate; 5. Anti-skid pad; 6. Anti-skid protrusion; 7. Adjusting groove; 8. Winding belt; 9. Extension curtain; 10. Connecting ring; 11. Pull rope; 12. Telescopic through hole; 13. Fireproof roller shutter body; 14. Winding column; 15. First hook surface sticker; 16. First velvet sticker; 17. Grooved channel; 18. Second hook surface sticker; 19. Second velvet sticker; 20. Grooved part; 21. Adjusting block; 22. Screw hole; 23. Screw; 24. Knob; 25. Pressing plate; 26. First counterweight block; 27. Second counterweight block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 5, the utility model provides the following technical solutions:

[0028] Embodiment 1

[0029] In order to solve the problem in the prior art that it is inconvenient to adjust according to the door frame width, the following solution is disclosed, specifically: Figure 1 and Figure 4 As shown, it includes a fixed cross bar 1 and a fixed ring 2. The fixed ring 2 is evenly fixed on the outside of the fixed cross bar 1. Adjustment grooves 7 are provided on both sides of the inside of the fixed cross bar 1, and the inside of the adjusting grooves 7 is movably connected with an adjustment block 21. Adjustment rods 3 are fixed to the outside of the adjustment blocks 21, and fixed plates 4 are fixed to the outside of the adjusting rods 3. Anti-skid pads 5 are provided on the outside of the fixed plates 4, and anti-skid protrusions 6 are evenly provided on the outside of the anti-skid pads 5. The cross-section of the anti-skid protrusions 6 is semicircular. The material of the anti-skid pads 5 is rubber. Screw holes 22 are provided in the inside of the adjustment blocks 21. Pressing plates 25 are connected to both sides of one end of the fixed cross bar 1, and one end of the pressing plate 25 is rotatably connected with a knob 24. Screws 23 are connected to the inside of the knob 24, and the screws 23 are threadedly connected to the screw holes 22.

[0030] In this embodiment, when in use, the knob 24 is turned to loosen the screw rod 23 and the screw hole 22, and the adjusting rod 3 is pulled outward so that it can drive the fixing plate 4 to move outward to adapt to door frames of different sizes. After the adjustment is completed, the reverse operation is performed so that the screw rod 23 is connected to the screw hole 22 and the pressure plate 25 is fitted with the fixed cross bar 1. The operation is simple and convenient to use. Under the action of the anti-slip pad 5 and the anti-slip protrusion 6, the friction of the fixing plate 4 can be increased, thereby enhancing the installation effect of the fixed cross bar 1.

[0031] Embodiment 2

[0032] This embodiment is different from the first embodiment. The range is further adjusted by setting an extension curtain 9. Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, the bottom end of the fixing ring 2 is connected to a fireproof rolling shutter body 13, a connecting ring 10 is fixed to the bottom of one end of the fireproof rolling shutter body 13, telescopic through holes 12 are evenly opened inside the fireproof rolling shutter body 13, a winding column 14 is fixed to the top of one end of the fireproof rolling shutter body 13, a pull rope 11 is connected to the outside of the connecting ring 10, and one end of the pull rope 11 passes through the telescopic through hole 12 and is wound around the outside of the winding column 14, and both sides of the fireproof rolling shutter body 13 are connected to extension curtains 9, the inner side of the extension curtains 9 is connected to a first hook surface sticker 15, and both sides of one end of the fireproof rolling shutter body 13 are connected to A first velvet patch 16 is provided, and the first velvet patch 16 is connected to the first hook patch 15. A winding belt 8 is fixed to the top of one end of the extension curtain 9. A groove channel 17 is provided at the top of the inner part of the winding belt 8. A second hook patch 18 and a second velvet patch 19 are fixed to the two ends of the winding belt 8 respectively. A groove portion 20 is provided at the bottom of the winding belt 8. The groove portion 20 is inclined inwardly. The diameter of the groove portion 20 is smaller than the inner diameter of the groove channel 17. A first counterweight block 26 is provided at the bottom end of the inner part of the extension curtain 9, and a second counterweight block 27 is provided at the bottom end of the inner part of the fireproof rolling shutter body 13.

[0033] In this embodiment, when in use, it is provided with an extension curtain 9, and it is connected to the fireproof roller shutter body 13 through a first hook surface sticker 15 and a first velvet sticker 16. When encountering a narrow door, the extension curtain 9 can be folded, and when encountering a wider door, the folded part can be opened to achieve a blocking effect on the door, thereby playing a role in adjusting the width of the fireproof roller shutter body 13 to improve its scope of application. When in use, the outer winding belt 8 of the extension curtain 9 is wound around the outside of the adjusting rod 3, and the through-groove part 20 passes through the through-groove channel 17, and its second hook surface sticker 18 and the second velvet sticker 19 are connected to play a fixing function for the extension curtain 9. Further, a pull rope 11 is provided, which passes through the telescopic through hole 12 in turn and is wound around the outside of the winding column 14. When the pull rope 11 is loosened during use, the fireproof roller shutter body 13 automatically droops to achieve a rapid shielding effect.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A retractable fireproof rolling shutter, comprising a fixed crossbar (1) and a fixed ring (2), wherein the fixed ring (2) is evenly fixed on the outer side of the fixed crossbar (1); Features: The fixed cross bar (1) is provided with adjustment grooves (7) on both sides thereof, and the adjustment grooves (7) are movably connected with adjustment blocks (21), the adjustment blocks (21) are fixed with adjustment rods (3) on the outside thereof, and the adjustment rods (3) are fixed with fixed disks (4), the adjustment blocks (21) are provided with screw holes (22), the fixed cross bar (1) is provided with pressure plates (25) on both sides thereof, and one end of the pressure plates (25) is rotatably connected with a knob (24), the inner side of the knobs (24) is connected with screw rods (23), and the screw rods (23) are threadedly connected with the screw holes (22); The bottom end of the fixing ring (2) is connected to a fireproof rolling shutter body (13), and both sides of the fireproof rolling shutter body (13) are connected to extension curtains (9), a winding belt (8) is fixed to the top of one end of the extension curtain (9), a first counterweight block (26) is arranged at the bottom end of the extension curtain (9), and a second counterweight block (27) is arranged at the bottom end of the fireproof rolling shutter body (13).

2. The retractable fireproof roller shutter according to claim 1, characterized in that: The outer sides of the fixed plates (4) are all provided with anti-skid pads (5), and the outer sides of the anti-skid pads (5) are evenly provided with anti-skid protrusions (6).

3. The retractable fireproof roller shutter according to claim 2, characterized in that: The cross-section of the anti-skid protrusions (6) is arranged to be semicircular, and the material of the anti-skid pads (5) is rubber.

4. The retractable fireproof roller shutter according to claim 1, characterized in that: A connecting ring (10) is fixed at the bottom of one end of the fireproof rolling shutter body (13), telescopic through holes (12) are evenly arranged inside the fireproof rolling shutter body (13), a winding column (14) is fixed at the top of one end of the fireproof rolling shutter body (13), a pull rope (11) is connected to the outside of the connecting ring (10), and one end of the pull rope (11) passes through the telescopic through hole (12) and is wound around the outside of the winding column (14).

5. The retractable fireproof roller shutter according to claim 1, characterized in that: The inner side of the extension curtain (9) is connected to a first hook surface sticker (15), and both sides of one end of the fireproof rolling curtain body (13) are connected to a first velvet surface sticker (16), and the first velvet surface sticker (16) is connected to the first hook surface sticker (15).

6. The retractable fireproof roller shutter according to claim 1, characterized in that: The top end of the winding belt (8) is provided with a through-groove channel (17), the two ends of the winding belt (8) are respectively fixed with a second hook surface sticker (18) and a second velvet sticker (19), and the bottom of the winding belt (8) is provided with a through-groove portion (20).

7. The retractable fireproof roller shutter according to claim 6, characterized in that: The through-groove portion (20) is in an inwardly inclined state, and the diameter of the through-groove portion (20) is smaller than the inner diameter of the through-groove channel (17).

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