CN215292226U - Fireproof rolling shutter door - Google Patents

Abstract

The utility model relates to a fire prevention rolling slats door, relate to the field of rolling slats door, it includes the door frame, the door frame upper end rotates and is connected with the axis of rotation, the axis of rotation has flexible door curtain around rolling up outward, flexible door curtain establishes respectively to stiff end and free end along its length direction's both ends, stiff end and axis of rotation fixed connection, the door frame is equipped with drive axis of rotation pivoted drive arrangement, the door frame upper end all rotates along its width direction's both sides and is connected with first bracing piece, flexible door curtain free end is equipped with the horizontally gravity pole admittedly, the gravity pole both ends are all rotated and are connected with the second bracing piece, two first bracing pieces and two second bracing piece one-to-ones, first bracing piece all rotates with the one end that corresponds the second bracing piece and is close to each other and is connected. This application has the difficult effect that flutters of flexible door curtain, has improved the leakproofness.

Description

Fireproof rolling shutter door

Technical Field

The application relates to the field of rolling slats doors, especially to a fire prevention rolling slats door.

Background

The fire-proof rolling door and the fire-proof wall have the same horizontal fire-proof separation function, are generally arranged at the positions which are inconvenient to be separated by the fire-proof wall and cannot use fire-proof doors and windows due to the large opening in the building, and are indispensable fire-proof facilities in modern high-rise buildings.

The related art can refer to chinese patent with publication number CN212755222U and discloses a fire-proof rolling shutter door, including flexible door curtain and hoisting mechanism, hoisting mechanism is including the main shaft of rotation installation, the outside coaxial fixed rope winding wheel that sets up of main shaft, the winding rope in the rope winding wheel, the free end of haulage rope and the bottom fixed connection of flexible door curtain, the tip of main shaft has power unit through gear pair power connection, power unit includes first transmission shaft and second transmission shaft, first transmission shaft and second transmission shaft coaxial arrangement, first transmission shaft and second transmission shaft are the integral key shaft, coaxial cooperation installation spline sleeve between first transmission shaft and the second transmission shaft, spline sleeve can be along axial slip, first transmission shaft passes through gear pair and is connected with main shaft power, second transmission shaft tip passes through gear pair power connection motor.

In view of the above-mentioned related technologies, the inventor believes that the air in a fire scene expands due to heating and usually accompanies with the dense smoke flowing rapidly, and the flexible door curtain falls down by the gravity of the supporting plate, and the curtain is very easy to float under the blowing of the smoke, so that the dense smoke is leaked in a large amount, and the sealing performance to the smoke is poor.

SUMMERY OF THE UTILITY MODEL

In order to improve the leakproofness of rolling slats door, this application provides a fire prevention rolling slats door.

The application provides a fire prevention rolling slats door adopts following technical scheme:

the utility model provides a fire prevention rolling slats door, including the door frame, the door frame upper end rotates and is connected with the axis of rotation, the axis of rotation has flexible door curtain around rolling up outward, flexible door curtain establishes respectively to stiff end and free end along its length direction's both ends, stiff end and axis of rotation fixed connection, the door frame is equipped with drive axis of rotation pivoted drive arrangement, the door frame upper end all rotates along its width direction's both sides and is connected with first bracing piece, flexible door curtain free end is equipped with horizontally gravity pole admittedly, the gravity pole both ends are all rotated and are connected with the second bracing piece, two first bracing pieces and two second bracing piece one-to-ones, first bracing piece all rotates with the one end that corresponds the second bracing piece and is close to each other and is connected.

Through adopting above-mentioned technical scheme, drive arrangement drives the axis of rotation and rotates, unreels flexible door curtain, and flexible door curtain free end descends under the action of gravity rod gravity, the contained angle grow between first bracing piece and the second bracing piece that corresponds, and two sets of first bracing pieces and the cooperation gravity rod of second bracing piece of flexible door curtain carry on spacingly to flexible door curtain, and flexible door curtain is difficult for waving and makes the flue gas effluvium, and the leakproofness is better.

Optionally, both sides of the flexible door curtain include a decorative layer, a flame retardant layer and a smoke barrier layer from the outside to the inside.

By adopting the technical scheme, the flexible door curtain has strong fire and smoke insulation capabilities due to the flame-retardant layer and the flame-retardant layer, smoke cannot easily permeate the flexible door curtain, and the sealing performance is improved.

Optionally, a spray pipe is fixedly arranged at the upper end of the door frame, and a plurality of through holes are formed in one side, close to the flexible door curtain, of the spray pipe along the axial direction of the spray pipe.

Through adopting above-mentioned technical scheme, the shower sprays water to flexible door curtain through the via hole, improves the fire behavior of flexible door curtain, and flexible door curtain should not lead to burning out by high temperature simultaneously, and life is longer.

Optionally, a plurality of reinforcing rods are fixedly arranged at equal intervals along the length direction of the flexible door curtain.

Through adopting above-mentioned technical scheme, under the stiffener effect, flexible door curtain is difficult for taking place to warp along its width direction, is favorable to improving the leakproofness to the flue gas.

Optionally, the door frame is provided with first limiting grooves adapted to the first connecting rod and the second connecting rod along both sides of the door frame in the width direction, and the lower end of the door frame is provided with second limiting grooves adapted to the gravity rod.

Through adopting above-mentioned technical scheme, second spacing groove and first spacing groove are spacing from flexible door curtain circumference simultaneously through gravity pole, first bracing piece and second bracing piece, are favorable to improving the leakproofness.

Optionally, the driving device comprises a worm wheel and a worm, the worm is rotatably connected with the door frame, the worm wheel is fixedly connected with the rotating shaft, and the worm wheel and the worm are mutually matched.

Through adopting above-mentioned technical scheme, the worm rotates and drives the axis of rotation through the worm wheel and rotate, and worm wheel and worm complex auto-lock nature makes flexible door curtain be difficult for unexpected switch, simple structure and improved stability in use.

Optionally, sliding connection has spacing rack in the door frame, and the vertical setting of spacing rack and upper end have set firmly the backup pad, and the backup pad rotates with the worm to be connected, and the door frame internal rotation is connected with the gear with the rack adaptation, and the door frame rotates and is connected with the cross axle, and the cross axle extends to the door frame with gear fixed connection cross axle one end and has set firmly first hand wheel outward.

Through adopting above-mentioned technical scheme, first cell-phone rotates steerable rack promptly and drives the backup pad and descend, and then makes worm and worm wheel break away from the meshing, and the user still can lift flexible door curtain under the power failure state, has improved the suitability.

Optionally, one end of the cross shaft, which is far away from the first hand wheel, extends out of the door frame and is fixedly provided with a second hand wheel.

Through adopting above-mentioned technical scheme, but first hand wheel and second hand wheel convenient to use person make worm wheel and worm break away from the meshing in both sides, and the flexible door curtain all can be opened to power failure state both sides, has improved the suitability.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the first supporting rod and the second supporting rod, the driving device drives the rotating shaft to rotate, the flexible door curtain is unreeled, the free end of the flexible door curtain descends under the action of gravity of the gravity rod, the included angle between the first supporting rod and the corresponding second supporting rod is enlarged, the two groups of first supporting rods and the second supporting rods of the flexible door curtain are matched with the gravity rod to limit the flexible door curtain, the flexible door curtain is not easy to float to enable smoke to be emitted, and the sealing performance is good;

2. by arranging the reinforcing rod, the flexible door curtain is not easy to deform along the width direction under the action of the reinforcing rod, and the sealing performance to smoke is improved;

3. through setting up first spacing groove and second spacing groove, second spacing groove and first spacing groove are spacing from flexible door curtain circumference simultaneously through gravity pole, first bracing piece and second bracing piece to flexible door curtain, are favorable to improving the leakproofness.

Drawings

Fig. 1 is a schematic view of the overall structure of a fire-resistant rolling door.

Fig. 2 is a partial schematic view aimed at highlighting the position of the drive means, the limit rack, the transverse axis and the gear.

Fig. 3 is a schematic diagram for highlighting the positions of the first support rod, the second support rod, the first position-limiting groove and the second position-limiting groove.

Fig. 4 is intended to highlight the structural schematic of the flexible door curtain.

Description of reference numerals: 1. a door frame; 11. a protective box; 2. a rotating shaft; 3. a flexible door curtain; 4. a drive device; 31. a gravity bar; 12. a first support bar; 32. a second support bar; 33. a decorative layer; 34. a flame retardant layer; 35. a smoke barrier layer; 5. a shower pipe; 6. a reinforcing bar; 13. a first limit groove; 14. a second limit groove; 41. a worm; 42. a worm gear; 7. a limit rack; 71. a support plate; 8. a horizontal axis; 81. a gear; 82. a first hand wheel; 83. a second hand wheel.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses a fire-proof rolling shutter door.

Referring to fig. 1 and 2, a fire prevention rolling slats door, including door frame 1, door frame 1 is the rectangle frame form, the user fixes door frame 1 in building door and window wait position during the installation, axis of rotation 2 is installed to 1 upper end of door frame, 2 both ends of axis of rotation all rotate with door frame 1 and be connected, axis of rotation 2 is outer to have flexible door curtain 3 around rolling up, size and 1 adaptation of door frame of flexible door curtain 3, drive arrangement 4 is installed to door frame 1, when needing to start fire prevention rolling slats door, the user utilizes 2 rotations of drive arrangement 4 control axis of rotation, and then control flexible door curtain 3 unreel and extend to 1 tip under the door frame, in order to play the fire prevention effect.

Referring to fig. 1 and 2, a protective box 11 is fixedly installed at the upper end of a door frame 1, and a rotating shaft 2 is positioned in the protective box 11; flexible door curtain 3 establishes respectively into stiff end and free end along its length direction's both ends, stiff end and 2 fixed connection of axis of rotation, under 11 tip of protective housing offer with the bar hole of flexible door curtain 3 adaptations, the free end passes the bar hole and extends to protective housing 11 below.

Referring to fig. 1 and 2, the driving device 4 includes a driving motor, the driving motor is installed at the upper end of the door frame 1, the output shaft of the driving motor extends into the protection box 11 and is connected with the wall of the protection box 11 in a rotating manner, a worm 41 is installed coaxially and fixedly on the output shaft of the driving motor, when the roller shutter door needs to be started, a user starts the driving motor, the driving motor drives the worm 41 to rotate, a worm wheel 42 is installed coaxially and fixedly on one end of the rotating shaft 2 close to the driving motor, the worm wheel 42 is located above the worm 41 and meshed with the worm 41, the rotating shaft 2 rotates synchronously under the driving of the worm 41, and the unwinding of the flexible door curtain 3 is realized.

Referring to fig. 1 and 3, a horizontal gravity rod 31 is installed at the free end of the flexible door curtain 3, the gravity rod 31 is made of solid metal, in the unwinding process of the flexible door curtain 3, the gravity rod 31 automatically pulls the flexible door curtain 3 at the free end by utilizing gravity, and the flexible door curtain 3 is not easy to float; first spacing groove 13 has been seted up to 1 both sides of door frame, and gravity pole 31 descends the in-process, and the both ends imbed the first spacing groove 13 of 1 both sides of door frame respectively, and gravity pole 31 is difficult for breaking away from door frame 1, and flexible door curtain 3 is difficult for waving, and the tip is seted up with the second spacing groove 14 of gravity pole 31 adaptation under the door frame 1, and gravity pole 31 removes when the below, imbeds in the second spacing groove 14.

Referring to fig. 1 and 3, the upper end of the door frame 1 is rotatably connected to first support rods 12 along both sides of the width direction thereof, the two ends of the gravity rod 31 are rotatably connected to second support rods 32, both the first support rods 12 and the second support rods 32 are rotatable along a plane parallel to the flexible door curtain 3, the two first support rods 12 and the two second support rods 32 are in one-to-one correspondence, and are rotatably connected with the ends close to each other corresponding to the second support rods 32, during the unwinding process of the flexible door curtain 3, the gravity rod 31 drives the second support rods 32 to rotate, thereby driving the first support rod 12 to rotate, the included angle between the first support rod 12 and the second support rod 32 gradually increases, when the gravity rod 31 moves to the lowest position, the first support bars 12 and the corresponding second support bars 32 are close to 180 °, and at this time, the two sets of first support bars 12 and the two sets of second support bars 32 are respectively embedded into the two first limiting grooves 13.

Referring to fig. 1 and 3, the flexible door curtain 3 is provided with a plurality of reinforcing rods 6 at equal intervals along the length direction, the reinforcing rods 6 are made of materials which are not easy to bend, the flexible door curtain 3 is not easy to bulge to influence the sealing performance under the blowing action of smoke, and then the first supporting rod 12 and the second supporting rod 32 are matched to enable the flexible door curtain 3 to be fixed in the door frame 1 and not easy to float.

Referring to fig. 1 and 4, flexible door curtain 3 both sides all include decorative layer 33 within from outside, fire-retardant layer 34 with hinder cigarette layer 35, decorative layer 33 can be according to the colour of spraying collocation such as building wall colour, and can adopt comparatively pleasing to the eye material, when the contact flue gas, fire-retardant layer 34 can make flexible door curtain 3 possess stronger high temperature resistant anti combustion ability, difficult burning takes place under the effect of high temperature flue gas and loses the leakproofness, it is difficult for passing flexible door curtain 3 to the opposite side to hinder cigarette layer 35 when can making flue gas and flexible door curtain 3 contact, the leakproofness of flexible door curtain 3 has been ensured.

Referring to fig. 1 and 3, 1 upper end fixed mounting of door frame has shower 5, shower 5 is located one side that door frame 1 is close to the flue gas, the user switches on shower 5 and outside water pipe, during flexible door curtain 3 contacts the flue gas, the user supplies water in to shower 5 through controlling outside water pipe, a plurality of through-holes have been seted up along its axial to one side that shower 5 is close to flexible door curtain 3, water in the shower 5 sprays to one side that flexible door curtain 3 is close to the flue gas through the through-hole, continuously cool down flexible door curtain 3, improve flexible door curtain 3's anti combustion ability.

Referring to fig. 1 and 2, if a fire causes a power failure, the driving motor is not available, and the rotating shaft 2 cannot rotate under the self-locking action of the worm wheel 42 and the worm 41, so that the flexible door curtain 3 cannot fall; the door frame 1 is rotatably connected with a cross shaft 8, the cross shaft 8 and a gear 81 are fixedly connected, the cross shaft 8 is horizontally arranged, two ends of the cross shaft 8 extend to two sides of the door frame 1, a first hand wheel 82 and a second hand wheel 83 are fixedly installed on the cross shaft, and a user in a power failure state can control the cross shaft 8 to rotate from two sides of the door frame 1 through the first hand wheel 82 or the second hand wheel 83.

Referring to fig. 1 and 2, a gear 81 is fixedly installed on a portion of the cross shaft 8 located in the door frame 1, and drives the gear 81 to rotate synchronously; sliding connection has spacing rack 7 in door frame 1, and spacing rack 7 meshes with gear 81, and the vertical setting of spacing rack 7 reciprocates under the drive of gear 81, and spacing rack 7 upper end fixed mounting has backup pad 71, drives backup pad 71 and reciprocates.

Referring to fig. 1 and 2, the driving motor is fixedly installed on the supporting plate 71, the supporting plate 71 is rotatably connected with the worm 41, the supporting plate 71 drives the worm 41 and the driving motor to synchronously move downwards, the worm 41 and the worm wheel 42 are separated from a meshing state, and at the moment, the gravity action of the gravity rod 31 is matched with the manual pulling of a user, so that the flexible door curtain 3 can be quickly lowered, and the fireproof effect is realized.

The implementation principle of the fire-proof rolling door in the embodiment of the application is as follows: a user starts a driving motor, the driving motor drives the worm 41 to rotate, the worm wheel 42 is driven by the worm 41 to synchronously rotate with the rotating shaft 2, the flexible door curtain 3 is unreeled, the gravity rod 31 automatically pulls the flexible door curtain 3 at the free end by utilizing gravity, and the flexible door curtain 3 is not easy to float; gravity pole 31 descends in-process, the both ends imbed respectively in the first spacing groove 13 of 1 both sides of door frame, gravity pole 31 is difficult for breaking away from door frame 1, gravity pole 31 drives second bracing piece 32 and rotates, and then drive first bracing piece 12 and rotate, contained angle between first bracing piece 12 and the second bracing piece 32 grow gradually, gravity pole 31 removes when the below, two sets of first bracing pieces 12 and second bracing piece 32 imbed respectively in two first spacing grooves 13, 6 make 3 flue gases of flexible door curtain blow and be difficult for taking place the swell down, and then cooperate first bracing piece 12 and second bracing piece 32 to make flexible door curtain 3 fix and be difficult for waving in door frame 1, guarantee leakproofness.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A fire-resistant rolling shutter door comprises a door frame (1), and is characterized in that: door frame (1) upper end rotates and is connected with axis of rotation (2), axis of rotation (2) have flexible door curtain (3) around rolling up outward, establish respectively to stiff end and free end at its length direction's both ends flexible door curtain (3), stiff end and axis of rotation (2) fixed connection, door frame (1) is equipped with drive axis of rotation (2) pivoted drive arrangement (4), door frame (1) upper end all rotates along its width direction's both sides and is connected with first bracing piece (12), flexible door curtain (3) free end is equipped with horizontally gravity pole (31) admittedly, gravity pole (31) both ends all rotate and are connected with second bracing piece (32), two first bracing pieces (12) and two second bracing piece (32) one-to-ones, first bracing piece (12) all rotate with the one end that corresponds second bracing piece (32) and be close to each other and be connected.

2. A fire resistant roller door as claimed in claim 1, wherein: both sides of the flexible door curtain (3) comprise a decorative layer (33), a flame retardant layer (34) and a smoke barrier layer (35) from outside to inside.

3. A fire resistant roller door as claimed in claim 2, wherein: the upper end of the door frame (1) is fixedly provided with a spray pipe (5), and one side of the spray pipe (5) close to the flexible door curtain (3) is provided with a plurality of through holes along the axial direction.

4. A fire resistant roller door as claimed in claim 1, wherein: the flexible door curtain (3) is fixedly provided with a plurality of reinforcing rods (6) at equal intervals along the length direction.

5. A fire resistant roller door as claimed in claim 1, wherein: first spacing groove (13) with first connecting rod and second connecting rod adaptation are all seted up along its width direction's both sides in door frame (1), and second spacing groove (14) with gravity pole (31) adaptation are seted up to door frame (1) lower extreme.

6. A fire resistant roller door as claimed in claim 1, wherein: the driving device (4) comprises a worm wheel (42) and a worm (41), the worm (41) is rotatably connected with the door frame (1), the worm wheel (42) is fixedly connected with the rotating shaft (2), and the worm wheel (42) is matched with the worm (41).

7. A fire resistant roller door as claimed in claim 1, wherein: door frame (1) sliding connection has spacing rack (7), and the vertical setting of spacing rack (7) and upper end have set firmly backup pad (71), and backup pad (71) rotate with worm (41) and are connected, door frame (1) internal rotation be connected with gear (81) of rack adaptation, door frame (1) rotate and are connected with cross axle (8), and cross axle (8) and gear (81) fixed connection cross axle (8) one end extend to door frame (1) and set firmly first hand wheel (82) outward.

8. A fire resistant roller shutter door as claimed in claim 7, in which: one end of the transverse shaft (8) departing from the first hand wheel (82) extends out of the door frame (1) and is fixedly provided with a second hand wheel (83).

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