CN2703939Y - Blast-port mechanism - Google Patents
Blast-port mechanism Download PDFInfo
- Publication number
- CN2703939Y CN2703939Y CN 200420022214 CN200420022214U CN2703939Y CN 2703939 Y CN2703939 Y CN 2703939Y CN 200420022214 CN200420022214 CN 200420022214 CN 200420022214 U CN200420022214 U CN 200420022214U CN 2703939 Y CN2703939 Y CN 2703939Y
- Authority
- CN
- China
- Prior art keywords
- steel cable
- shaft
- torsion spring
- switch plate
- switch board
- 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 relates to a blast-port mechanism, belonging to the fire-fighting type product and comprising a rope winding shaft, an electromagnet, a shaft arm, a tension spring, a blade and a casing. The blast-port mechanism is characterized in that the lower part of the rope winding shaft is provided with a locking torsional spring. One end of the locking torsional spring is fixed with the casing, and the other end is connected with the iron core of the electromagnet. The inner diameter of the locking torsional spring is smaller than the outer diameter of the rope winding shaft, and the upper part of the rope winding shaft is provided with a steel cable which crosses the case through a switch board and is connected with a pin shaft on the shaft arm. The lower side of the switch board is provided with a switch, and the left upper side of the switch board and the torsional spring are installed on the shaft of the switch board. The pin shaft which is fixed on the switch board is provided between the torsional spring and the steel cable. The steel cable is tightly winded on the rope winding shaft, and meanwhile, the steel cable controls the tightness of the blade. The position between the mechanism and the spindle arm have no requirement in distance, so the assembly process is simple, the reliability of the actuating mechanism is improved, and the production cost is low.
Description
Technical field
The utility model relates to a kind of air blowing opening mechanism, belongs to the fire-fighting series products.
Background technique
At present, in the supermarket, megastore, in the tall building, for security against fire needs, all be provided with air blowing opening, it is installed in the supermarket, megastore, the fire-fighting cup of tall building, air blowing opening is a closed condition during safe condition, when breaking out of fire, control by control centre, air blowing opening is opened, and send new wind to the fire-fighting cup, and air blowing opening of the prior art mechanism, mainly lock another lever by a lever, the working principle of another lever locking spindle arm is arranged again, and its shortcoming is: can only lean on the distance between regulating mechanism and the spindle arm to control the tightness that blade is closed when adjusting the tightness of blade, so higher to assembly technical requirement, and the complex structure of mechanism own, the production cost height.
Summary of the invention
The purpose of this utility model is to overcome prior art to have defective, and a kind of tight by steel cable control blade fully is provided, and the position between mechanism and the spindle arm is not had a kind of air blowing opening actuator of required distance.
For achieving the above object, the technical solution adopted in the utility model is: a kind of air blowing opening mechanism, it comprises wiring axle, electromagnet, armshaft, extension spring, blade, shell, be characterized in, wiring axle bottom is nested with the locking torsion spring, and an end and the shell of locking torsion spring are fixed, and the other end is connected with the iron core of electromagnet, the internal diameter of locking torsion spring is less than the external diameter of wiring axle, is equipped with steel cable on the wiring axle and passes shell by switch plate and be connected with bearing pin on the armshaft.The switch plate downside is equipped with switch.The upper left side of switch plate, torsion spring are installed on the switch plate axle, are equipped with the bearing pin that is fixed in switch plate between torsion spring and the steel cable.
The beneficial effects of the utility model are: in the wiring axle, control the tight of blade by steel cable by the steel cable lock ring simultaneously, the position between mechanism and the spindle arm is not had required distance, so assembly technology is simple, and improve the reliability of actuator, cost of production is low.
Description of drawings
Fig. 1 is a resetting structure schematic representation of the present utility model;
Fig. 2 is Fig. 1 partial sectional view;
Fig. 3 is that steel cable of the present utility model is released structural representation.
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.Shown in Fig. 1-3, a kind of air blowing opening mechanism, it comprises wiring axle, electromagnet, armshaft, extension spring, blade, shell, be characterized in, wiring axle 7 bottoms are nested with locking torsion spring 9, and the end and the shell 10 that connect locking torsion spring 9 are fixing, and the other end is connected with the iron core of electromagnet 8, the internal diameter of described locking torsion spring 9 is less than the external diameter of wiring axle 7, and wiring axle 7 tops are equipped with steel cable 5 that bearing pin is housed and pass shell 10 by switch plate 4 and be connected with bearing pin on the armshaft 11.Switch plate 4 downsides are equipped with switch 6.The upper left side of switch plate 4, torsion spring 2 are installed on the switch plate axle 1, are equipped with the bearing pin 3 that is fixed in switch plate 4 between torsion spring 2 and the steel cable 5.Pin sleeve on the bearing pin arm 11 is equipped with extension spring, steel cable 5.
Working principle of the present utility model: be sleeved on the external diameter of the internal diameter of the locking torsion spring 9 on the wiring axle 7 less than wiring axle 7, one end of locking torsion spring 9 and shell 10 are fixing, the other end is connected with the iron core of electromagnet 8, when electromagnet gets electric iron core by adhesive, one end of pulling locking torsion spring 9, make the internal diameter expansion of locking torsion spring 9 lose the resistance of opposing connection reel for rope, make wiring axle 7 can freely rotate release steel cable 5, the valve that makes air blowing opening revolves blade to turn 90 degrees under the effect of self unlatching by extension spring and opens.
One end of switch plate 4 and torsion spring 2 are set on the switch plate axle 1 simultaneously, are installed with lock shaft 3 on the switch plate 4, after steel cable 5 discharges, and loosen the other end of switch plate 4, depress the power supply of switch 6 tripping magnets 8 under the effect of torsion spring 2.
Manually rotation wiring axle 7 tightens up steel cable 5, and air blowing opening is closed, and when steel cable 5 continues to be tightened up, switch plate 4 is produced thrust, makes an end of switch plate 4 break away from switch 6, makes switch 6 connect the power supply of action next time.
Claims (2)
1. air blowing opening mechanism, it comprises wiring axle, electromagnet, armshaft, extension spring, blade, shell, it is characterized in that, wiring axle (7) bottom is nested with locking torsion spring (9), one end of locking torsion spring (9) and shell (10) are fixing, the other end is connected with the iron core of electromagnet (8), and the internal diameter of described locking torsion spring (9) is less than the external diameter of wiring axle (7), and wiring axle (7) top is equipped with steel cable (5) and passes shell (10) by switch plate (4) and be connected with bearing pin on the armshaft (11).Switch plate (4) downside is equipped with switch (6).
2. air blowing opening according to claim 1 mechanism is characterized in that the upper left side of described switch plate (4), torsion spring (2) are installed on the switch plate axle (1) simultaneously, is equipped with the bearing pin (3) that is fixed in switch plate (4) between described torsion spring (2) and the steel cable (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420022214 CN2703939Y (en) | 2004-04-26 | 2004-04-26 | Blast-port mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420022214 CN2703939Y (en) | 2004-04-26 | 2004-04-26 | Blast-port mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2703939Y true CN2703939Y (en) | 2005-06-08 |
Family
ID=34770267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420022214 Expired - Fee Related CN2703939Y (en) | 2004-04-26 | 2004-04-26 | Blast-port mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2703939Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751424A (en) * | 2019-03-19 | 2019-05-14 | 郑荣俊 | Valve linkage and smoke-and fire-preventing valve |
| CN111576161A (en) * | 2020-06-08 | 2020-08-25 | 邓昌杰 | Curing agent spreader |
| CN111677929A (en) * | 2020-06-23 | 2020-09-18 | 江苏特福隆自控设备有限公司 | Intelligent electric actuator for full-automatic fireproof smoke exhaust valve |
| CN115075438A (en) * | 2022-06-27 | 2022-09-20 | 符斌 | Building curtain wall |
-
2004
- 2004-04-26 CN CN 200420022214 patent/CN2703939Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109751424A (en) * | 2019-03-19 | 2019-05-14 | 郑荣俊 | Valve linkage and smoke-and fire-preventing valve |
| CN109751424B (en) * | 2019-03-19 | 2024-03-01 | 郑荣俊 | Valve linkage device and smoke-proof fire-proof valve |
| CN111576161A (en) * | 2020-06-08 | 2020-08-25 | 邓昌杰 | Curing agent spreader |
| CN111677929A (en) * | 2020-06-23 | 2020-09-18 | 江苏特福隆自控设备有限公司 | Intelligent electric actuator for full-automatic fireproof smoke exhaust valve |
| CN115075438A (en) * | 2022-06-27 | 2022-09-20 | 符斌 | Building curtain wall |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |