CN1281932A - An Improved Mechanism for Fast Doors - Google Patents

Abstract

An improved structure of a quick door comprises a scroll, a torsion spring, an active adjusting device, a passive adjusting device, a first fixing device, a second fixing device, a gear set, a roller shutter door and a motor. According to the improved structure of the quick door, when the tightness of the torsion spring needs to be adjusted, one end of the long sleeve can be extended into the fluted disc, the tightness of the torsion spring can be adjusted only by pulling the ratchet wrench, and when the torsion spring cannot rotate any more, the torsion spring only needs to be reversely rotated by an angle and then pulled forwards.

Description

An Improved Mechanism for Fast Doors

The invention relates to an improved mechanism of a fast door, in particular to a rolling shutter structure of an electric rolling door.

In factories, schools and many public places, you can often see electric rolling shutter doors. They are installed in homes or factories, especially in places where the land is narrow and densely populated, because the characteristics of rolling shutter doors are that they can be opened and closed. The bottom shrinks and rolls up, but after the rolling door is used for a long time, its torsion spring will be loose, so there will be a reel adjustment device on the outside of the rolling door, as shown in Appendix 1 of Taiwan Patent Publication No. 368046. The conventional rolling door reel adjustment The device is a force-applying structure assembled on the outside of one end of the rolling shaft of the rolling shutter. It consists of a main body 31, a screw element 32, a nut 33 and an operating tool 34; The H-shaped ring body that section 312 forms, its central place is horizontally set a piercing shaft hole 313, and offers a piercing hole 314 on one corresponding side of polygonal transverse section 312, and sets respectively at the two ends of piercing hole 314 The circular concave hole 315 and the hexagonal concave hole 316; the screw element 32 can pass through the piercing hole 314 of the main body 31 and the perforation 11 of the reel 1, and the rod surface is provided with a male threaded rod body, and its head can be accommodated in the main body The inside of the round concave hole 315 of 31; the nut 33 is provided with a hexagonal element with male thread inside which can be screwed with the penetrating end of the screw fixing element 32, and it can be accommodated inside the hexagonal concave hole 316 of the main body 31; The operating tool 34 can be clamped to one corresponding side of the polygonal section 312 of the main body 31 to rotate the force applying element of the reel 1 , and its end 341 is preset with a clamping mouth whose inner diameter is the same as the distance from the corresponding side of the polygonal section 312 . It can use an operating tool 34 to rotate the force application element of the reel 1, use the force application element to rotate the rolling door reel 1, and then achieve the purpose of tightening the torsion spring, but it must extend the operation tool 34 into the main body 31 and clamp the main body The main body 31 can only be rotated behind the polygonal horizontal section 312 on the inner side of 31, and when the rolling shutter door is usually installed between the roof and the ceiling or is installed on the outside above the doorway, an iron sheet needs to be added to wrap the rolling shutter door, and when the rolling shutter door is installed on the roof Between the ceiling and the ceiling, the space is usually just enough to install the rolling shutter door. If the torsion spring of the reel 1 needs to be tightened, the operating space will be narrow, which is quite inconvenient for the operator to operate the open-end wrench. In addition, the operator needs to climb up a Only on the support can the rotating reel 1 be operated. If the operator is not careful, it will cause an accident. If it is exposed above the door, it will usually cover the drill skin just right for the sake of beauty. When rotating the reel 1 to tighten the torsion spring, its available operating space is also very small and difficult to operate. Moreover, when the operator uses the operating tool 34, it can only be rotated to an angle due to the limitation of space. Extract the operating tool 34 out of the main body 31, change an angle, and then insert the main body 31 to rotate, which is quite inconvenient. Between the roof and the ceiling or above the door, there is usually a cover that can be lifted up or opened down at the relative position where the scroll adjustment device is located, so that maintenance personnel can perform maintenance or adjust the scroll adjustment device of the shutter door from there.

As shown in the patent bulletin of Taiwan Patent Announcement No. 248242 shown in Annex 2, the reel spring tightness adjustment mechanism of this conventional rolling door is to set several reel wheels 50 and springs 40 on the reel 10 and fix several fixed blocks 41, one side of the spring 40 is fixed on the reel 50, the other side is fixed on the fixed block 41, one end of the rolling door 80 is fixed on the disc 51 and each reel 50, and the disc 51 is fixed by the fixed seat Driven by the motor 71 of 70, wherein: one end of the reel 10 is provided with a fixed box 60 and is covered with a fixed seat 70, the fixed box 60 is provided with a shaft hole 62 that can be worn with the reel 10, and a guide hole is provided at its upper end 64, and a worm wheel 20 fixed on the reel 10 and a worm 30 cooperating with the worm wheel 20 are arranged inside it, the mandrel 31 of the worm 30 is provided with a groove 32, and the mandrel 31 of the worm 30 is arranged in the guide hole 64 Among them, the above-mentioned fixed box 60 can be fixed with the fixed seat 70 sleeved on the reel 10. The conventional rolling door uses a worm wheel 20 to cooperate with the worm 30 to limit the rotation of the reel 10, but when the rolling door 80 is rotated, that is It will cause the vibration of the worm wheel 20 and the worm 30, because the worm wheel 20 and the worm 30 are driven by screw meshing, and the vibration of the worm wheel 20 and the worm 30 will cause the meshing screws to vibrate, and the result of the vibration Promptly can cause its helical angle to loosen, and the spring 40 of reel 10 is loosened more and more, and danger easily occurs.

The purpose of the present invention is to provide an improved structure of the fast door, so that the consumer can quickly and conveniently adjust the tightness of the torsion spring, and after the consumer has adjusted the tightness of the torsion spring, the active and passive adjustment device can be used The setting of the inner flywheel prevents the torsion spring from reversing to release its elastic potential energy, which can prevent the worm wheel from loosening due to the vibration generated when the rolling door is used, and release the elastic potential energy of the torsion spring.

In order to achieve the above object, the present invention is an improved structure of a fast door, including:

a scroll, with a first end and a second end;

A torsion spring, the torsion spring has a first end and a second end, and the first end of the torsion spring is pivotally fixed between the first end and the second end of the above-mentioned reel;

An active adjustment device, the active adjustment device is pivoted to the first end of the above-mentioned reel, and the second end of the above-mentioned torsion spring is fixed on one side of the active adjustment device;

a passive adjustment device, the passive adjustment device is pivotally fixed with the second end of the above-mentioned reel;

A first fixing device, the first fixing device is pivotally fixed with the other side of the above-mentioned active adjustment device;

a second fixing device, and the second fixing device is pivotally fixed to the other side of the above-mentioned passive adjustment device;

A gear set, the gear set is pivotally fixed to one side of the first fixing device, the gear set is provided with a safety device, and has the function of reverse idling.

A rolling door, one end of the rolling door is fixed on the tooth plate of the above-mentioned active adjustment device, and the other end is fixed on the coil of the above-mentioned passive adjustment device;

A motor, the motor is fixed under the above-mentioned active adjustment device, and one end of the motor is provided with a gear, and the end of the motor with the gear is meshed with the toothed plate of the active adjustment device, so that the rotation of the motor can be used to drive the active adjustment device. The adjustment device turns.

The present invention has following characteristics and advantages:

In the improved structure of the fast door of the present invention, when it is necessary to adjust the tightness of the torsion spring, one end of the long sleeve can be used to extend into the toothed plate to fit the driving shaft of the gear set, and the other end of the long sleeve can be used for The ratchet wrench with reversing function allows the user to adjust the tightness of the torsion spring just by pulling the ratchet wrench. angle, and then move forward.

In the improved structure of the fast door according to the present invention, the gear set is provided with a safety device in order to avoid wrong direction of operation, which can achieve a safety design that only idling occurs during anti-empty operation.

In the improved structure of the fast door of the present invention, the active and passive adjustment device is locked by the ratchet in the flywheel and the locking claw, so the vibration generated when the rolling door rotates will not cause any impact on the active and passive adjustment device of the present invention. Impact.

The accompanying drawings are as follows:

Fig. 1 is the three-dimensional perspective view of the first embodiment of the present invention;

Fig. 2 is a schematic internal state diagram of the flywheel of the first embodiment of the present invention;

Fig. 3 is a schematic internal state diagram of the flywheel of the first embodiment of the present invention;

Fig. 4 is a schematic diagram of a partial zoom-in operation in the first embodiment of the present invention;

Fig. 5 is a three-dimensional system diagram of the second embodiment of the present invention;

Fig. 6 is a state diagram of operating the one-way adjusting device according to the second embodiment of the present invention;

Fig. 7 is another state diagram of operating the one-way adjusting device according to the second embodiment of the present invention;

Fig. 8 is a three-dimensional system diagram of the third embodiment of the present invention.

Now illustrate the preferred embodiment of the present invention in conjunction with accompanying drawing.

The present invention provides an improved structure of a fast door, please refer to Fig. 1, wherein the scroll spring adjustment mechanism of the rolling door of the present invention is composed of a first and a second fixing device 100, 200, a gear set 300, an active and passive adjustment The devices 400, 500 are combined with a reel 600, wherein the first fixing device 100 is composed of a positioning plate 110, and the appropriate position of the positioning plate 110 is provided with a positioning seat 111 that is folded out in two pieces, and a fixing seat 120 is inserted into the The above-mentioned positioning seat 111 is tightly locked on the top of the positioning seat 111. After several screws 121 pass through the screw holes 112 of the positioning seat 111, the fixing seat 120 is screwed on the positioning plate 110, so that the fixing seat 120 cannot be self-positioned. Exit on the seat 111, the center of the upper end of the fixed seat 120 protrudes a support block 122 laterally, the center of the support block 122 is sunken into a U shape, and the appropriate position on both sides of the support block 122 is concavely provided with two vertical and opposite The symmetrical groove 123 is provided with a fixed piece 124, 125 on the outside of the two grooves 123 of the support block 122, wherein the fixed pieces 124, 125 are provided with a first end 1251 and a second end 1252, wherein the second end 1252 is screwed On both sides of the support block 122, and the first end 1251 is higher than the support block 122 of the fixing base 120, a tightening screw 126 fits on the top of the support block 122, the tightening screw 126 is formed into a ∩ shape, and at the same time the tightening screw 126 The two ends of the fastening screw 126 pass through and are locked in the two grooves 123 of the support block 122, and the two ends of the fastening screw 126 are respectively screwed with a nut 1261, so that the fastening screw 126 cannot be separated from the support block of the fixing seat 120. 122 exits in the groove 123.

A gear set 300, the gear set 300 is formed by the meshing of a driving gear 310 and a driven gear 320, and the end face of the driving gear 310 is provided with a plurality of unidirectional conical claws 3101, and the claws 3101 are relatively matched The end face is provided with a stopper 3102 in addition, and one end face of the stopper 3102 is also provided with a one-way conical claw 3103 that cooperates with the drive gear 310, so that the catch claw 3101 on the end face of the drive gear 310 is engaged with the catch claw 3103 of the brake 3102 At the same time, the two can rotate to the right together, and the two are idling to the left. The other end surface of the brake 3102 is provided with a hexagonal column-shaped pulling end 3104, wherein the driving gear 310 and the brake 3102 are driven by a driving shaft 330 Through pivoting, wherein the brake 3102 is longitudinally provided with a positioning pin and the through drive shaft positioning, the drive shaft 330 runs through and is pivoted to the first end 1251 of the above-mentioned two fixed pieces 124, 125, so that the drive gear 310 is driven by The shaft 330 is pivotally fixed to the outside of the first end 1251 of the fixed piece 125, and is also placed outside the first end 1251 of the fixed piece 125. The two ends of a worm 340 are pivotally fixed to the first ends of the above-mentioned two fixed pieces 124, 125 1251, and the worm 340 is placed between the two fixed pieces 124, 125, and several screw teeth 341 are evenly arranged, and one end of the worm 340 passes through the fixed piece 125, and is pivoted with the driven gear 320, so that the driven gear 320 The pinion is fixed on the outside of the first end 1251 of the fixed piece 125 , and the driven gear 320 is meshed with the driving gear 310 .

An active adjustment device 400, the active adjustment device 400 includes a fixed shaft 410, a convex rib 411 is arranged on the central ring of the fixed shaft 410, and the fixed shaft 410 forms a first end 412 and a second end by using the convex rib 411 413, its first end 412 is placed between the above-mentioned support block 122 and the tightening screw 126, and then the fixed shaft 410 is pivoted in the support block 122 of the fixing seat 120 due to the tightening screw 126, and cannot be separated from the fixing seat 120. The support block 122 is protruded upwards. In addition, one side of the convex rib 411 is against the end of the support block 122, so that the fixed shaft 410 can only be inserted into the inner side of the support seat 122 for a certain distance, and the second end 413 of the fixed shaft 410 is nearly convex. A threaded section 414 is provided at the rib 411 .

A flywheel 420, please refer to shown in Fig. 2 and Fig. 3, it is the internal structure of this flywheel 420, wherein it can be seen that a ratchet 421 is provided on the inner side of the flywheel 420, and two locking pawls 422 are pivotally arranged on the inner side of the ratchet 421, each An elastic body 423 is provided below the catch claws 422, so that the catch claws 422 can have a function of swinging up and down. A perforation 424 is provided at the axis of the flywheel 420, and a thread 425 is provided inside the perforation 424. The flywheel 420 is sleeved on the above-mentioned fixed shaft 410 through the through hole 424 , and is screwed with the threaded section 414 of the fixed shaft 410 through the thread 425 in the through hole 424 .

A worm wheel 430, a circular and hollow threaded part 431 protrudes in the axial direction of the worm wheel 430, a threaded part 432 is provided on the inner side of the threaded part 431, and a housing is provided on the inner edge of the other side of the worm wheel 430 space (not shown in the figure), the accommodating space is for the above-mentioned flywheel 420 to be inserted, and several screws 433 are evenly distributed on one side of the accommodating space of the worm wheel 430, and the several screws 433 are also stuck on the teeth of the flywheel 420. When the worm wheel 430 is rotated, it will also drive the flywheel 420 to rotate. The outer ring of the worm wheel 430 is provided with a number of teeth 434, which can be meshed with the thread 341 of the above-mentioned worm 340.

A toothed plate 440, the inside of the toothed plate 440 is provided with a protruding reel 442, and the above-mentioned worm wheel 340 is placed inside the toothed plate 440, and a convex portion 4422 is protruded on the outer side of the reel 442, and on the side of the convex portion 4422 The adjacent side is provided with a concave portion 4423, and the concave and convex portions 4423, 4422 are for the concave and convex rolling sheets of the rolling shutter door to cooperate and fix each other.

A passive adjustment device 500, which includes a reel 510, the reel 510 is provided with a matching part 511 at its axis, and a protruding part 512 is protruded outside the reel 510, and adjacent to the protruding part 512 A concave portion 513 is provided on the side, and the concave and convex portions 513 and 512 are used for the concave and convex rolling sheets of the rolling door 450 to cooperate and fix each other.

A worm wheel 520, a circular and hollow threaded part 521 protrudes in the axial direction of the worm wheel 520, a threaded part 522 is provided on the inner side of the threaded part 521, and a housing is provided on the inner edge of the other side of the worm wheel 520 Space 523, this accommodating space 523 is for accommodating a flywheel 530, and between the teeth on the outer edge of the flywheel 530 is provided with a number of screws 531, the number of screws 531 is screwed with the worm wheel 520, so when the worm wheel 520 rotates , it will also drive the flywheel 530 to rotate, and the inner side of the flywheel 530 is screwed to one end of a fixed shaft 540, and the other end of the fixed shaft 540 is inserted into the second fixing device 200.

A spool 600, the two ends of the spool 600 are respectively provided with a threaded part 610, 620, wherein one end of the spool 600 is inserted into the above-mentioned gear plate 440, and the threaded part 610 of this end is connected with the threaded part of the threaded part 431 of the above-mentioned worm wheel 430 432 are screwed together, two fixed blocks 630, 640 are fitted on the reel 600, and a torsion spring 650 is fitted on the reel 600, the torsion spring 650 is placed between the reel 442 of the sprocket 440 and the fixed block 630, the One end of the torsion spring 650 is screwed on the reel 442 of the toothed disc 440, and the other end of the torsion spring 650 is screwed on the fixed block 630, and the other end of the reel 600 is also fitted with a torsion spring 660, and the torsion One end of the spring 660 is screwed on another fixed block 640, and the other end of the torsion spring 660 is screwed on the inner side of the reel 510, and the other end of the reel 600 passes through the fitting portion 511 of the reel 510, and the end of the The threaded portion 620 is screwed to the threaded portion 522 of the worm wheel 520 described above.

Please continue to refer to FIG. 4 , which is a perspective view of the combination of the active adjustment device 400 , the first fixing device 100 and the gear set of the present invention. It can be seen in the figure that one end of a long sleeve 700 extends into the toothed disc 440 , and fitted on the pulling end 3104 of the brake 3102, and the other end of the long sleeve 700 can fit a ratchet wrench 710, the user only needs to turn the ratchet wrench 710 to drive the long sleeve 700 to rotate, and The long sleeve 700 also drives the rotation of the driving shaft 330 of the active adjustment device 400, and when the driving shaft 330 rotates, it rotates the driving gear 310 together, and the driving gear 310 drives the driven gear 320, and the rotation of the driven gear 320, namely It will drive the worm 340 to rotate together, and the rotation of the worm 340 will also cause the worm wheel 430 to rotate, and the rotation of the worm wheel 430 will cause the reel 600 to rotate together, and once the reel 600 rotates, it will drive the passive adjustment device 500 to rotate together, so that The two torsion springs 650, 660 are tightened together to achieve the purpose of tightening the two torsion springs 650, 660, because the two ends of the reel 600 are the fitting parts of the reels 442, 510 that run through the active and passive adjustment devices 400, 500 respectively 4421, 511, so when the user wants to put down the rolling door 450, the starter motor 720 drives the gear plate 440 to rotate, and the reels 442, 510 gradually put down the rolling door 450, because the reel 600 is sleeved on the inner side of the reels 442, 510, so when When toothed plate 440 rotates, reel 600 can not rotate thereupon, because one end of torsion spring 650,660 is fixed on the reel 442,510, and the other end is fixed on the fixed block 630,640, and torsion spring 650,660 because of The rotation of the gear plate 440 is tightened, and the tense torsion springs 650 and 660 store elastic energy inside. When the user wants to roll up the rolling door 450, the motor 720 needs to be started to drive the gear plate 440 to roll up the rolling door 450, and at the same time, it is tensioned. When the torsion springs 650 and 660 are stretched back to the original state, the elastic force will be released to assist the rotation of the toothed plate 440, so that the motor 720 can rotate the toothed plate 440 more easily to achieve labor-saving effect.

Please continue to refer to Fig. 2 and Fig. 3. Fig. 2 shows that the tension of the torsion springs 650 and 660 will decrease after a long period of use. Tightness, when the gear set 300 is transmitted to the worm wheel 430, because the flywheel 420 is placed inside the worm wheel 430, the gap between the teeth of the flywheel 420 is due to the screw 433 screwed on the worm wheel 430, so that the worm wheel 430 When rotating, it will drive the flywheel 420 to rotate, and when the user rotates the gear set 300 and adjusts the tightness of the torsion springs 650, 660, the worm gear 430 will rotate counterclockwise, and the flywheel 420 will also rotate counterclockwise. When 420 rotates counterclockwise, the ratchet wheel 421 on its inner side has an inclined surface 426 because of its wall surface, and the locking pawl 422 has a function of swinging up and down, so when the ratchet wheel 421 rotates, its inclined surface 426 will push the locking pawl 422 down. When the claw 422 is pressed down by the inclined surface 426, the elastic body 423 under the claw 422 will be compressed, so that the flywheel 420 will rotate, and then the flywheel 420 will be rotated. The worm wheel 430 drives the reel 600 to rotate, thereby tightening the torsion springs 650 and 660. When the user operates the gear set 300 to rotate the active adjustment device 400, the active adjustment device 400 is pivotally fixed to one end of the reel 600. The other end of the reel 600 is pivoted with the passive adjustment device 500, so when the active adjustment device 400 is operated by the user to operate the gear set 300, the active adjustment device 400 will use the reel 600 to drive the passive adjustment device 500 to rotate together, and Tighten the two torsion springs 650, 660 at the same time, and Fig. 3 shows that when the user no longer adjusts the tightness of the torsion springs 650, 660, the flywheels 420, 530 in the active adjustment device 400 and the passive adjustment device 500 When the locking pawl 422 is stuck inside the ratchet 421, and the inclined surface 426 no longer presses down on the locking pawl 422, the locking pawl 422 cannot press down on the elastic body 423, so that the elastic body 423 below the locking pawl 422 relaxes. Push up the pawl 422 so that the ratchet wheel 421 cannot be reversed, the flywheel 420 cannot rotate clockwise, and the worm wheel 430 cannot rotate clockwise. When the elastic energy stored in the torsion springs 650, 660 is about to be released, because the spool 600 is screwed to the worm wheel 430, and when the worm wheel 430 cannot rotate, the spool 600 cannot rotate either. 660 cannot drive the reel 600 to rotate, so that the torsion springs 650, 660 cannot rotate to release the elastic energy, so that the torsion springs 650, 660 can maintain the adjusted tightness.

For the second embodiment of the present invention, please refer to FIG. 5 , wherein the first fixing device 100 is composed of a positioning plate 110 ′, and the appropriate position of the positioning plate 110 ′ is provided with two positioning seats 111 ′ that are folded outwards, and A fixed seat 120' is inserted into the above-mentioned positioning seat 111', and placed above the positioning seat 111', and the screw 121' is used to pass through the screw hole 112' of the positioning seat 111', and then the fixed seat 120' is screwed to the positioning plate 110', so that the fixed seat 120' cannot withdraw from the positioning seat 111', and a support block 122' protrudes horizontally from the center of the upper end of the fixed seat 120', and the center of the support block 122' is sunken into a U-shape. The proper positions on both sides of the support base 122' are recessed with two vertical and symmetrical grooves 123', and a tightening screw 126' fits above the support block 122', and the tightening screw 126' is formed into a ∩ shape, The two ends of the tightening screw 126' go through and are locked in the two grooves 123' of the support seat 122', and the two ends of the tightening screw 126' are respectively screwed with a nut 1261', so that the tightening The screw 126' cannot exit from the groove 123' of the support block 122' of the fixing base 120'.

A motor 1 is provided with a driving wheel 2 at one end, and a fixed shaft 410' is provided with a convex rib 411' at the central ring of the fixed shaft 410', and the fixed shaft 410' forms a second One end 412' and the second end 413', the first end 412' is placed between the above-mentioned support block 122' and the tightening screw 126', so that the fixed shaft 410' is pivoted to the fixed seat by the tightening screw 126' 120' in the support block 122', and cannot escape upward from the support block 122' of the fixed seat 120', and the second end 413' of the fixed shaft 410' is set in the fixed hole 4 of a longitudinal gear 3, the longitudinal One end face of the movable gear 3 is provided with a fixed cylinder 5 .

A reel 600', wherein one end of the reel 600' is inserted into the above-mentioned fixed cylinder 5, and a positioning pin 7 is inserted longitudinally through a fixing ring 6 to position the reel 600', and two fixed pins are inserted on the reel 600'. Blocks 630', 640', a torsion spring 650' is sleeved on the reel 600', the torsion spring 650' is placed between the fixing cylinder 5 and the fixing block 630', and one end of the torsion spring 650' is screwed to the above-mentioned fixing On the end surface of the tube 5, the other end of the torsion spring 650' is screwed on the fixed block 630', and the other end of the reel 600' is also fitted with a torsion spring 660', and one end of the torsion spring 660' is screwed. On the other fixed block 640', the other end of the torsion spring 660' is screwed to the end surface of the other fixed cylinder 8, and the other end of the reel 600' is also positioned in the fixed cylinder 8 with the positioning pin 10 of a fixed ring 9 .

A one-way adjustment device 11, which includes a one-way ratchet seat 12, one end of the one-way ratchet seat 12 is a one-way ratchet 13, and the other end is a shaft portion 14, and the one-way ratchet seat 12 uses its shaft portion 14 Insert in the fixed cylinder 8 and insert a positioning pin 16 by a fixed ring 15, the one-way ratchet seat 12 is fixed on the fixed cylinder 8, and a rotating seat 17 is provided, one end of which is arranged on the end face of the one-way ratchet 13, and One end of the shaft 18 passes through the one-way ratchet 13 and enters the shaft 14, and the screw 19 provided on the shaft 14 is used to lock and fix the end of the shaft 18, so that the longitudinal space of the rotating seat 17 is positioned, and only Can produce the operation of pivoting type, the outer side of this rotating base 17 just can be coated on the outer edge of one-way ratchet 13, and for a pulling bar 20 to pass through it and one-way locking with one-way ratchet 13, and with the first The second fixing device 200 that is symmetrical to the fixing device 100' has a cantilever 22 arranged on the side of the fixing seat 21, and a catch 23 is arranged between the cantilever 22 to stop the one-way ratchet 13, forming the In the state shown in FIG. 7 , when the pull lever 20 is operated to pivot, it drives the one-way ratchet seat 12 to rotate, thereby achieving the operation purpose of the one-way adjusting device 11 .

The third embodiment of the present invention, as shown in Figure 8, only changes the positioning plates on the first and second fixing devices from the second embodiment to form an L-shaped positioning seat 24, so that Achieve the advantage of saving materials.

Claims (21)

1. An improved structure of a fast door, characterized in that it comprises: a scroll, with a first end and a second end; A torsion spring, the torsion spring has a first end and a second end, and the first end of the torsion spring is pivotally fixed between the first end and the second end of the above-mentioned reel; An active adjustment device, the active adjustment device is pivoted to the first end of the above-mentioned reel, and the second end of the above-mentioned torsion spring is fixed on one side of the active adjustment device; a passive adjustment device, the passive adjustment device is pivotally fixed with the second end of the above-mentioned reel; A first fixing device, the first fixing device is pivotally fixed with the other side of the above-mentioned active adjustment device; a second fixing device, and the second fixing device is pivotally fixed to the other side of the above-mentioned passive adjustment device; A gear set, the gear set is pivoted to one side of the first fixing device, the gear set is provided with a safety device, and has the function of reverse idling. A rolling door, one end of the rolling door is fixed on the tooth plate of the above-mentioned active adjustment device, and the other end is fixed on the coil of the above-mentioned passive adjustment device; A motor, the motor is fixed under the above-mentioned active adjustment device, and one end of the motor is provided with a gear, and the end of the motor with the gear is meshed with the toothed plate of the active adjustment device, so that the rotation of the motor can be used to drive the active adjustment device. The adjustment device turns. 2. An improved structure of a fast door, characterized by comprising: a reel having a first end and a second end; Two fixed blocks, the two fixed blocks are respectively pivoted between the first end and the second end of the above-mentioned reel; Two torsion springs, one end of the two torsion springs are respectively fixed on the above-mentioned corresponding fixed blocks; An active adjustment device, the active adjustment device is provided with a worm wheel in the toothed disc, and a flywheel is fixed inside the worm wheel, and the flywheel is screwed with one end of the fixed shaft, and the first end of the above-mentioned reel is through the rear of the toothed disc , which is pivotally fixed with the worm wheel; A passive adjustment device, the passive adjustment device is provided with a worm wheel in the reel, and a flywheel is fixed inside the worm wheel, and the flywheel is screwed with one end of the fixed shaft, and the first end of the above-mentioned reel is through the reel Finally, it is fixed with the worm wheel; A first fixing device, the other end of the fixing shaft of the above-mentioned active adjustment device is pivotally fixed in the first fixing device; A second fixing device, the other end of the fixed shaft of the above-mentioned passive adjustment device is pivotally fixed in the second fixing device; A gear set, the gear set is pivoted on one side of the first fixing device, and the gear set is provided with a safety device, which has the function of reverse idling, so as to prevent the lack of jamming caused by reverse operation; A rolling door, one end of the rolling door is fixed on the tooth plate of the above-mentioned active adjustment device, and the other end is fixed on the coil of the above-mentioned passive adjustment device; A motor, the motor is fixed under the above-mentioned active adjustment device, and one end of the motor is provided with a gear, and the end of the motor with the gear meshes with the toothed plate of the active adjustment device, so that the rotation of the motor can be used to drive the active adjustment device rotation; The elastic force of the torsion spring can be adjusted by operating the gear set, and the release of the elastic force of the second torsion spring can be prevented by actively and passively adjusting the setting of the flywheel in the device. 3. The improved structure of the fast door according to claim 1 or 2, characterized in that the first fixing device includes a positioning plate, and the appropriate position of the positioning plate is provided with a number of symmetrical positioning seats, and the fixing seats are inserted into the positioning seats Inside, and screw the fixing seat to the positioning plate. 4. The improved structure for fast door forming according to claim 3, characterized in that a support block protrudes laterally from the center of the fixing seat, the center of the support block is sunken into a U-shape, and is placed at an appropriate position on both sides of the support seat. There is a groove in the concave, and a fixing piece is provided on the outside of the groove of the support seat. The tightening screw is sleeved on the top of the support seat. The two ends of the tightening screw penetrate and are stuck in the two grooves of the support seat. The two ends of the tightening screw are respectively engaged with a nut, so that the tightening screw cannot withdraw from the groove of the fixed support block. 5. The improved structure of the fast door according to claim 1 or 2, characterized in that the middle gear set is formed by the meshing of the driving gear and the passive gear. 6. The improved structure of the fast door according to claim 3, characterized in that the middle driving gear is pivoted by the driving shaft, and the driving shaft penetrates and is pivoted on the above two fixed pieces, so that the driving gear The drive shaft is pivotally fixed on the outside of the fixed plate, and is also placed outside the first end of the fixed plate, and the end of the drive shaft on the outside of the driving gear forms a polygonal end. 7. The improved structure of the fast door according to claim 6, characterized in that both ends of the worm are pivotally fixed between the two fixed pieces, and one end of the worm passes through the fixed piece, and is pivotally fixed with the driven gear. , and then the driven gear is pivoted to the fixed piece, and is pivotally fixed with the driven gear, and then the driven gear is pivoted to the outside of the fixed piece, and the driven gear meshes with the driving gear. 8. The improved structure of the fast door according to claim 1 or 2, characterized by an active adjustment device, which is composed of a fixed shaft, a flywheel, and a worm gear toothed disc, wherein the central ring of the fixed shaft is provided with One end of the convex rib is placed between the above-mentioned support seat and the tightening screw, and one side of the convex rib is against one side of the support seat, and the other end of the fixed shaft is provided with a threaded section near the convex rib. 9. The improved structure for fast door forming according to claim 8, characterized in that there is a ratchet wheel on the inside of the flywheel, two locking claws are pivotally arranged on the inner side of the ratchet wheel, and an elastic body is arranged under each locking claw, so that The locking claw can swing up and down, and the flywheel is screwed with the above-mentioned fixed shaft. 10. The improved structure of the fast door according to claim 8, characterized in that the worm wheel is protrudingly provided with a screw joint, and the above-mentioned flywheel is fixed inside the worm wheel, and when the worm wheel rotates, it will also drive the flywheel to rotate, and the worm wheel and the above-mentioned worm Mesh. 11. The improved structure of the fast door according to claim 8, characterized in that a protruding part is provided on the inner side of the tooth plate, and a reel is protruded inside the protruding part, so that the tooth plate is in a stepped shape. The inner side of the disk is hollow, and several perforations are arranged on the side wall of the protruding part of the toothed disk. 12. The improved structure of the fast door according to claim 11, characterized in that a convex part is provided on the outside of the reel, and a concave part is provided on the adjacent side of the convex part, and the concave and convex parts are concave and convex for the rolling shutter door. Shaped rolls can cooperate with each other to fix. 13. The improved structure of the fast door according to claim 1 or 2, characterized in that the second adjustment device includes a combination of a reel, a worm wheel, a flywheel and a fixed shaft, wherein the reel is convexly provided with a fitting A convex portion is provided on the outer side of the reel, and a concave portion is provided on the adjacent side of the convex portion. The concave and convex portions are for the concave and convex coils of the rolling shutter door to cooperate and fix each other. 14. The improved structure of the fast door according to claim 13, characterized in that the worm wheel is provided with a hollow threaded part, the inner side of the screwed part is provided with a threaded part, and the inner side of the worm wheel accommodates the flywheel, and the flywheel Screws are set between the teeth on the outer edge, and these screws are screwed with the worm wheel, so when the worm wheel rotates, it also drives the flywheel to rotate. 15. The improved structure of the fast door according to claim 13, characterized in that the inner side of the flywheel is screwed to one end of the fixed shaft, and the other end of the fixed shaft is inserted into the second fixing device. 16. The improved structure of the fast door according to claim 1 or 2, characterized in that one end of the reel is inserted into the fitting part of the tooth plate of the main branch adjustment device, and then screwed with the worm gear of the above-mentioned active adjustment device . 17. The improved structure of the fast door according to claim 16, characterized in that several fixed blocks are fitted on the reel, and two torsion springs are fitted on the reel, wherein one torsion spring is placed between the reel of the chainring and the fixed block. One end of the torsion spring is screwed on the reel of the toothed disc, and the other end of the torsion spring is screwed on the fixed block. 18. The improved structure of the fast door according to claim 17, characterized in that one end of the other torsion spring is screwed on the other fixing block, and the other end of the torsion spring is screwed on the reel. 19. The improved structure of the fast door according to claim 16, characterized in that the other end of the reel passes through the fitting portion of the reel of the passive adjustment device, and is screwed with the worm wheel of the passive adjustment device. 20. An improved structure of a fast door, comprising: a reel having a first end and a second end; Two fixed blocks, the two fixed blocks are respectively pivoted between the first end and the second end of the above-mentioned reel; Two torsion springs, one end of the two torsion springs are respectively fixed on the above-mentioned corresponding fixed blocks; A first fixing device, which is arranged at the first end of the reel, and a transmission motor drives a gear between the first fixing device and the reel; A second fixing device is arranged at the second end of the reel, and a one-way adjustment device is provided between the second fixing device and the reel; The elastic force of the torsion spring can be adjusted by operating the one-way adjusting device, and the elastic force of the two torsion springs can be prevented from being released by the one-way design. 21. The improved structure of the fast door according to claim 20, characterized in that the one-way adjustment device includes a one-way ratchet seat, one end of the one-way ratchet seat is a one-way ratchet, and the other end is a shaft , the one-way ratchet seat is inserted into the fixed cylinder through its shaft and a positioning pin is inserted through a fixed ring, the one-way ratchet seat is fixed on the fixed cylinder, and a rotating seat is provided, one end of which is set on the end face of the one-way ratchet, And use one end of the shaft to pass through the one-way ratchet to enter the shaft, and then use the screw provided on the shaft to lock and fix the end of the shaft, so that the longitudinal space of the rotating seat is positioned, and only the pivoting type can be produced. Operation, the outer side of the rotating seat can just cover the outer edge of the one-way ratchet, and a pull rod can pass through to produce one-way locking with the one-way ratchet, and the second fixing device corresponding to the first fixing device A cantilever is provided on the side of the fixed seat, and a catch is set between the cantilevers to stop the one-way ratchet. When the lever is operated to pivot, it drives the one-way ratchet seat to rotate.

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