CN212154610U - Anti-falling rolling door - Google Patents
Anti-falling rolling door Download PDFInfo
- Publication number
- CN212154610U CN212154610U CN202020153067.XU CN202020153067U CN212154610U CN 212154610 U CN212154610 U CN 212154610U CN 202020153067 U CN202020153067 U CN 202020153067U CN 212154610 U CN212154610 U CN 212154610U
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- CN
- China
- Prior art keywords
- card arm
- chain wheel
- door
- chain
- arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model mainly relates to an anti-falling rolling door, which comprises a transmission mechanism, a door curtain, a slide rail, a girder pipe, an auxiliary plate and a rolling door machine, wherein the transmission mechanism comprises an installation bottom plate, a chain, a clamping arm, a driving chain wheel and a driven chain wheel; the mounting bottom plate is provided with a driving chain wheel and a driven chain wheel; the chain is wound on the driving chain wheel and the driven chain wheel; the card arm includes card arm and lower card arm, go up card arm and lower card arm and still be equipped with the torsional spring respectively and make it rotate on the fixed axle and make card arm and lower card arm end have the gyro wheel to lean on the chain, the other end of going up card arm and lower card arm is equipped with the protruding beak respectively. The utility model discloses simple structure, when installation or right side installation drive mechanism on a left side, after the chain rupture, the automatic big sprocket of dead load rolling slats door of card prevents that the rolling slats door from falling down, and the reliability is high, and with low costs, is suitable for extensive popularization, has positive technological effect.
Description
Technical Field
The utility model relates to a rolling slats door technical field especially relates to an anti-falling rolling slats door.
Background
The electric rolling door is driven by a chain of a transmission mechanism, some of the transmission mechanisms are arranged above the wall on the left side of the door opening, and some of the transmission mechanisms are arranged above the wall on the right side of the door opening. The chain in the transmission mechanism is broken accidentally due to abrasion or overload in the operation process, most rolling door machines are not provided with a safety protection anti-falling device, and the rolling door can fall by self weight to cause accidents. In order to solve the problem, the clamping block is arranged in the transmission mechanism to prevent the rolling door from falling.
For example, the problem that the roller shutter door accidentally breaks due to chain dropping is solved by a fireproof roller shutter door safety device disclosed in the Chinese patent application No. CN96236379 and a double roller shutter door machine with a falling-preventing self-locking device disclosed in the Chinese patent application No. CN 201320033597. However, the breaking prevention device of the device has unidirectionality, and is only suitable for being fixedly installed on one side of a wall and cannot be used for left and right installation. The operation of this device is shown in fig. 7: when drive mechanism installed in door opening right side wall, the unexpected fracture of chain, the fixture block blocks into in the tooth's socket of sprocket under the effect of torsional spring, and big sprocket can anticlockwise rotation when the door curtain descends, and at this moment, big sprocket exerts pressure to the fixture block, and it is tighter to block more, prevents that big sprocket from continuing to rotate, and the effect is effective. Or as shown in fig. 7: when the transmission mechanism is installed on the wall on the left side of the door opening, the transmission mechanism needs to be rotated 180 degrees to be installed, so that the large chain wheel of the transmission mechanism faces the outer side of the door opening, and the clamping block on the rotated transmission mechanism is arranged on the transmission mechanism. The chain is unexpected fracture, and the fixture block blocks under the effect of torsional spring in the tooth's socket of sprocket, but big sprocket can rotate clockwise when the door curtain tenesmus, and at this moment, big sprocket is exerted elasticity to the fixture block and is bounced off the fixture block, and big sprocket continues to rotate, prevents that disconnected effect is inefficacy.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the anti-falling rolling door is provided, so that the anti-falling transmission mechanism of the rolling door can play a good anti-falling role when being arranged on the right or on the left.
The utility model provides a technical scheme that its technique was taken is: the utility model provides a prevent weighing down rolling slats door, includes drive mechanism, door curtain, slide rail, girder pipe, subplate and rolling slats door machine, drive mechanism and subplate are installed respectively in the wall top of door opening both sides, girder pipe both ends are erect on drive mechanism and subplate, the vertical installation of slide rail is on the wall of door opening both sides, the door curtain winding is on the girder pipe and can follow the slide rail from top to bottom.
The transmission mechanism is provided with a mounting bottom plate, a chain, a clamping arm, a driving chain wheel and a driven chain wheel; a door rolling machine fixing support leg is arranged on one side of the mounting bottom plate, a driving chain wheel is arranged in the middle of the fixing support leg, and the door rolling machine is fixed on the fixing support leg and is in transmission with the driving chain wheel; a rotating shaft is arranged on the other side of the mounting bottom plate; the driven chain wheel is arranged on the rotating shaft and can rotate; the chain is wound on the driving chain wheel and the driven chain wheel; the card arm includes card arm and lower card arm, go up card arm and lower card arm setting inboard and fix on mounting plate through the fixed axle respectively at the chain, go up card arm and lower card arm still are equipped with the torsional spring respectively and make it rotate on the fixed axle and make and go up card arm and card arm end down have the gyro wheel to lean on the chain, go up the other end that card arm and lower card arm are equipped with protruding beak respectively, and this protruding beak satisfies: when the chain breaks, the convex beak can be clamped in the tooth groove of the driven chain wheel.
The utility model has the advantages that: the utility model discloses simple structure installs drive mechanism when still right side in door opening left side during installation rolling slats door, after the chain rupture, can both block the big sprocket of dead load rolling slats door automatically, prevents that the rolling slats door from falling down, and the reliability is high, and with low costs, is suitable for extensive popularization.
Drawings
Fig. 1 is the right installation schematic diagram of the utility model.
Fig. 2 is a left side installation schematic view of the present invention.
Fig. 3 is a perspective view of the right installation of the transmission mechanism of the present invention.
Fig. 4 is the left installation schematic diagram of the transmission mechanism of the present invention.
Fig. 5 is a front view of the right side of the transmission mechanism of the present invention.
Fig. 6 is a cross-sectional view of fig. 5 according to the present invention.
Fig. 7 is a schematic illustration of the left and right mounting of a prior art transmission.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.
As shown in fig. 1-7, the embodiment of the present invention: the utility model provides a prevent weighing down rolling slats door, includes drive mechanism 1, door curtain 2, slide rail 3, girder pipe 4, subplate 5 and rolling slats door machine 6, drive mechanism 1 and subplate 5 are installed respectively in the wall top of door opening both sides, erect respectively on drive mechanism 1 and subplate 5 at 4 both ends of girder pipe, 3 vertical installations of slide rail are on the wall of door opening both sides, 2 twines of door curtain on girder pipe 4 and can follow slide rail 3 from top to bottom.
The transmission mechanism 1 is provided with a mounting bottom plate 7, a chain 8, a clamping arm 9, a driving chain wheel 10 and a driven chain wheel 11; a rolling door machine fixing support leg 12 is arranged on one side of the mounting bottom plate 7, a driving chain wheel 10 is arranged in the middle of the fixing support leg 12, and the rolling door machine 6 is fixed on the fixing support leg 12 and is in transmission with the driving chain wheel 10; a rotating shaft 13 is arranged on the other side of the mounting bottom plate 1; the driven chain wheel 11 is arranged on the rotating shaft 13 and can rotate; the chain 8 is wound on the driving chain wheel 10 and the driven chain wheel 11; card arm 9 includes card arm 14 and lower card arm 15, go up card arm 14 and lower card arm 15 and set up at 8 inboards of chain and fix on mounting plate 7 through fixed axle 16 respectively, go up card arm 14 and lower card arm 15 and still be equipped with torsional spring 17 respectively and make it can be at fixed axle 16, go up card arm 14 and lower card arm 15 tip and be equipped with gyro wheel 18 respectively, gyro wheel 18 supports and leans on chain 8 under torsional spring 17's torsion effect down, the other end of going up card arm 14 and lower card arm 15 is equipped with protruding beak 19 respectively, and this protruding beak 19 satisfies: when the chain breaks, the protruding beak 19 can be caught in the tooth groove of the driven sprocket 11 by the torsion spring 17.
The utility model discloses a working process: first, install drive mechanism 1 in the wall top on door opening right side when installing the rolling slats door, the rolling slats door uses a period of time after, chain 8 is unexpected to be split, lower card arm 15 is under the effect of torsional spring 17, its protruding beak 19 chucking is in driven sprocket 11's tooth's socket, driven sprocket 11 anticlockwise rotates and with protruding beak 19 block more tight more, make driven sprocket 11 no longer rotate, prevent that the rolling slats door from weighing down. When the device is installed on the right side, the lower clamping arm 15 plays a role in preventing falling.
In the second example, when the roller shutter door is installed on the wall on the left side of the door opening, the driving mechanism 1 needs to be reversed up and down 180 degrees so that the driven sprocket 11 faces the outside of the door opening, and the upper clamping arm 14 on the reversed driving mechanism 1 is arranged below the driving mechanism 1. After the roller shutter door is used for a period of time, the chain 8 is accidentally broken, the convex beak 19 of the upper clamping arm 14 is clamped in the tooth groove of the driven sprocket 11 under the action of the torsion spring 17, and the driven sprocket 11 rotates clockwise and is clamped with the convex beak 19 more and more tightly, so that the driven sprocket 11 does not rotate any more, and the roller shutter door is prevented from falling. When the left side is installed, the upper clamping arm 14 plays a role in preventing falling.
Therefore, the utility model discloses during left side or right side installation drive mechanism, go up card arm 14 and card arm 15 down and can the driven sprocket 11 of chucking load rolling slats door respectively, improve the security performance of rolling slats door. The utility model discloses simple structure, the reliability is high, and with low costs, is suitable for extensive popularization.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (1)
1. The utility model provides a prevent weighing down rolling slats door which characterized in that: the door curtain winding mechanism comprises a transmission mechanism, a door curtain, a sliding rail, a girder pipe, an auxiliary plate and a door rolling machine, wherein the transmission mechanism and the auxiliary plate are respectively installed above walls on two sides of a door opening; the transmission mechanism is provided with a mounting bottom plate, a chain, a clamping arm, a driving chain wheel and a driven chain wheel; a door rolling machine fixing support leg is arranged on one side of the mounting bottom plate, a driving chain wheel is arranged in the middle of the fixing support leg, and the door rolling machine is fixed on the fixing support leg and is in transmission with the driving chain wheel; a rotating shaft is arranged on the other side of the mounting bottom plate; the driven chain wheel is arranged on the rotating shaft and can rotate; the chain is wound on the driving chain wheel and the driven chain wheel; the card arm includes card arm and lower card arm, go up card arm and lower card arm setting inboard and fix on mounting plate through the fixed axle respectively at the chain, go up card arm and lower card arm still are equipped with the torsional spring respectively and make it rotate on the fixed axle and make and go up card arm and lower card arm end have the gyro wheel to support and lean on the chain, go up the other end that card arm and lower card arm are equipped with protruding beak respectively, and this protruding beak satisfies: when the chain breaks, the convex beak can be clamped in the tooth groove of the driven chain wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020153067.XU CN212154610U (en) | 2020-02-05 | 2020-02-05 | Anti-falling rolling door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020153067.XU CN212154610U (en) | 2020-02-05 | 2020-02-05 | Anti-falling rolling door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212154610U true CN212154610U (en) | 2020-12-15 |
Family
ID=73711635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020153067.XU Expired - Fee Related CN212154610U (en) | 2020-02-05 | 2020-02-05 | Anti-falling rolling door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212154610U (en) |
-
2020
- 2020-02-05 CN CN202020153067.XU patent/CN212154610U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201215 Termination date: 20210205 |