CN203213937U - Downward starter for passive self-descending fire resisting shutter - Google Patents
Downward starter for passive self-descending fire resisting shutter Download PDFInfo
- Publication number
- CN203213937U CN203213937U CN 201320211089 CN201320211089U CN203213937U CN 203213937 U CN203213937 U CN 203213937U CN 201320211089 CN201320211089 CN 201320211089 CN 201320211089 U CN201320211089 U CN 201320211089U CN 203213937 U CN203213937 U CN 203213937U
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- CN
- China
- Prior art keywords
- sleeve
- starter
- shutter
- downward
- descending
- 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 discloses a downward starter for a passive self-descending fire resisting shutter and belongs to the technical field of fire fighting equipment. The downward starter is composed of an upper sleeve, a lower sleeve and compression springs. The upper sleeve and the lower sleeve are sleeved together, and the compression springs are mounted in a sleeve. The upper sleeve is fixed at the upper end of shutter guide rail, the bottom beam of a shutter contacts with the lower end of the lower sleeve before ascending in place, overcomes strength of the springs in the sleeve and drives the lower sleeve to continuously ascend in place, and the springs in the sleeve applies downward spring force to the bottom beam of the shutter. Once a brake mechanism is loosened, the spring force is released to be forced on the bottom beam of the shutter through the lower sleeve to start descending of the shutter. The downward starter for the passive self-descending fire resisting shutter has the advantage that the downward starter is simple in structure, reliable in motion, capable of staying in long-term working state and being maintenance free, and widely applicable to various existing fire resisting shutters.
Description
Technical field
The utility model relates to the facility that a kind of usefulness is helped the fire curtain effectively start.Belong to the extinguisher field.
Background technology
Fire curtain is to put down roller shutter when breaking out of fire, and the fire-fighting of playing the effect that cuts off the scene of a fire cuts off.Fire curtain as just enabling when the breaking out of fire twists at ordinary times on the cylinder and with braking mechanism and brakes.Because for a long time stagnation is motionless, the roller shutter cylinder is former thereby cause fire curtain after the releasing of brake mechanism still can not start the phenomenon of decline by dust viscous etc.Through on-the-spot investigation, this series products all can't be realized " passive from falling " function more than 90%.Hidden danger is very big.
Summary of the invention
The purpose of this utility model is the above-mentioned shortcoming that overcomes existing fire curtain, for passive self-declining type fire curtain provide a kind of can be to tripping force of static roller shutter to guarantee its startup and then the descending starter of normally transferring when transferring.
The descending starter that this passive self-declining type fire curtain is used is made of the compression spring that is sleeved on upper and lower sleeve together and be installed in the sleeve.During use the upper bush of this starter is fixed on the upper end of roller shutter guide rail, and makes the lower end of lower sleeve be positioned at the following 10-15cm position that the roller shutter bottom girder rises to bit positions.That is, when roller shutter rose, the bottom girder of roller shutter touches the lower end of lower sleeve earlier and overcomes the spring in the sleeve before rising puts in place tension band lower sleeve and is continued to go upward to and put in place, was stopped by the braking mechanism braking of roller shutter cylinder.Spring in the sleeve is in compressive state at this moment, and namely behind braking mechanism braking roller shutter cylinder, starter is applied with a downward spring force by the spring in the sleeve to roller shutter.In case releasing of brake mechanism, this spring force discharges, and acts on the roller shutter bottom girder by lower sleeve, thereby it is descending to start roller shutter.After finishing the descending startup of roller shutter, descending along with roller shutter, roller shutter increases in the deadweight of down direction, and roller shutter is transferred voluntarily.
The utility model has the advantages that simple in structurely, make easily reliable in action; Can be in for a long time and treat duty and service free.The reel curtain structure is not done any change, after installing to former roller shutter function without any influence.Can be widely used in existing various fire curtain uses.
Content of the present utility model further illustrates with the following Examples, but content of the present utility model is not limited only to content related among the embodiment.
Description of drawings
Fig. 1 is structural representation of the present utility model
Fig. 2 is the rise station schematic diagram of starter when putting in place of the bottom girder of roller shutter
Fig. 3 is the vertical view of Fig. 2
The specific embodiment
Shown in Fig. 1～3, the descending starter that this passive self-declining type fire curtain is used is made of the compression spring 3 that is sleeved on upper bush 1, lower sleeve 2 together and be installed in the upper and lower sleeve.4 for being fixed on the position-limitting pin on the lower sleeve 2 among the figure, and 5 for being opened in the groove on the upper bush 1 corresponding to position-limitting pin 4.Can certainly adopt other form of structure to constitute the sleeve of this energy relative motion.6 is the roller shutter guide rail, and 7 is roller shutter, and 8 is the roller shutter bottom girder.What adopt in the present embodiment is a kind of cylindrical sleeve, with an installing plate 9 it is welded on the roller shutter guide rail 6.The installation site of its lower end is looked the tension force of selected spring and is decided.In general, it is suitable it being installed in the tension force that puts station 100-150mm position in place, spring is had more than the 80kg that is lower than roller shutter bottom girder 8.To wideer fire curtain, can on two roller shutter guide rails, correspondence install and use this starter.
Claims (1)
1. the descending starter that passive self-declining type fire curtain is used is characterized in that described descending starter is made of the compression spring that is sleeved on upper and lower sleeve together and be installed in the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320211089 CN203213937U (en) | 2013-04-24 | 2013-04-24 | Downward starter for passive self-descending fire resisting shutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320211089 CN203213937U (en) | 2013-04-24 | 2013-04-24 | Downward starter for passive self-descending fire resisting shutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203213937U true CN203213937U (en) | 2013-09-25 |
Family
ID=49203484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320211089 Expired - Fee Related CN203213937U (en) | 2013-04-24 | 2013-04-24 | Downward starter for passive self-descending fire resisting shutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203213937U (en) |
-
2013
- 2013-04-24 CN CN 201320211089 patent/CN203213937U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20160424 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |