CN202122787U - Air-controlled mechanical delaying device - Google Patents
Air-controlled mechanical delaying device Download PDFInfo
- Publication number
- CN202122787U CN202122787U CN2011201674234U CN201120167423U CN202122787U CN 202122787 U CN202122787 U CN 202122787U CN 2011201674234 U CN2011201674234 U CN 2011201674234U CN 201120167423 U CN201120167423 U CN 201120167423U CN 202122787 U CN202122787 U CN 202122787U
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- release
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- push rod
- air
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Abstract
The utility model discloses an air-controlled mechanical delaying device, which relates to the technical field of the firefighting equipment and comprises a shell with an air inlet and an air outlet, wherein the air-controlled mechanical delaying device is characterized in that: the shell is internally provided with a triggering mechanism composed of a releasing cylinder (9) and a releasing arm (8), a mechanical delaying mechanism composed of a delayer start rod (7), a clockwork device (10) and a cam disk (6), and a linkage drive mechanism composed of a pawl rod (5), a pull rope (4), a linkage arm (3), a push rod (1) and a spring (2); the push rod drives the releasing rod to open the control valve so that the delayed extinguishing air can pass through the control valve; the device can ensure reliable evacuation delay time, thereby preventing casualties caused by low temperature and suffocation effects due to wrong ejection of the extinguishing system.
Description
Technical field
The utility model relates to the fire-fighting equipment technical field, is specifically related to a kind of gas control mechanical delay device when being used for the automatic gas fire extinguishing system and needing delay protection.
Background technology
Time-delay mechanism is used for the zone that the automatic gas fire extinguishing system needs delay protection, spurts extinguishing chemical after promptly evacuating through time-delay.In the milling train carbon dioxide automatic fire extinguishing system, be usually used between board-like filtration, the fire extinguishing of closed area such as basement spurts, purpose is personnel's when guaranteeing that fire takes place a evacuation time.
Milling equipment often uses the high-low pressure carbon dioxide automatic fire extinguishing system at present; When the breaking out of fire of certain protection zone; Detector is surveyed the condition of a fire automatically, and the delay procedure of automatic fire alarm control system sends the agent application control signal after through time-delay in 0～30 second, and control signal starts the gas circuit controller; Gas circuit controller control driving gas is opened selector valve and storage bottle, thus with the carbon dioxide application that stores in storage tank or the storage bottle to conflagration area.This delay function helps the evacuating personnel in the fire generation area, thus the protection personal security.The length of delay time is carried out the scene setting according to the actual Travel distance in flame failure protection district, accomplishes time-delay setting by the computer program of automatic fire alarm control system, generally is no more than 30 seconds.
What present domestic most cases adopted is the time-delay mode of electrical control; Its shortcoming is the influence owing to unfavorable factors such as internal electron line fault, outside thunderbolt, electromagnetic interference in running of electricity (son) control system; It is disorderly that control program is produced, and the not wrong situation of sending the fire extinguishing control signal through delaying time possibly occur, thereby cause the spray of fire extinguishing system mistake; Do not have evacuation to spurt carbon dioxide in advance when finishing personnel, cause personnel's suffocation accident easily.
Summary of the invention
In order to overcome the deficiency of prior art; The invention technical problem to be solved provides a kind of gas control mechanical delay device; This device is arranged on the driving gas pipeline; Reliable stable, can ensure reliable evacuation delay time, thereby can avoid causing that low temperature and smothering effect caused personnel's injures and deaths when the fire extinguishing system mistake was sprayed.
For realizing the foregoing invention purpose, following technical scheme is adopted in the invention:
The gas control mechanical delay device of the invention; Comprise shell with air inlet and gas outlet; Be provided with the trigger mechanism that discharges cylinder and release arm formation in the shell; The mechanical delay mechanism that delayer starting bar, clockwork and cam disc constitute, the linkage driving mechanism that pawl bar, stay cord, transmission arm, push rod and spring constitute; Wherein, release arm is hinged on the shell, and release arm is provided with protruding stops; Delayer starting bar tip portion one end is pressed against on the stops, and delayer starting bar other end rear portion is provided with clockwork, the front portion is provided with cam disc; Pawl bar tip portion one end is pressed against on the cam disc wheel rim, and the pawl bar other end is hinged on the shell, and this end of pawl bar connects stay cord one end; The stay cord other end is connected on the transmission arm, and transmission arm is connected with push rod one end, is arranged with spring on the push rod, and the push rod other end is through the release lever drive control valve; Air inlet links to each other with control valve through pipeline respectively with the gas outlet and constitutes pneumatic flow channel.
Be better implement the invention, also be provided with blocking lever in the shell, blocking lever is pressed against on the transmission arm, and blocking lever presses the transmission arm position switch contact on its top.
Be better implement the invention, said stay cord two ends are set to spheroid, and said spheroid is placed in the ball-and-socket of transmission arm respectively and the picking up in the groove of pawl bar.
Be better implement the invention, said release arm is an inverted T shape, and the perpendicular section of inverted T shape release arm top is a release cam, and said release cam presses the terminal location switch contact on its top; Inverted T shape release arm crosspiece is provided with protruding stops, and crosspiece one end bottom is provided with the release cylinder.
Because adopt aforesaid technical scheme, the invention has following superiority:
1, gas control mechanical type time-delay mechanism is set on the driving gas pipeline; Driving gas is only when the time-delay of gas control mechanical type time-delay mechanism is accomplished; Just be transported to the gas circuit controller; Open regional selector valve and extinguishing chemical bottle valve through the gas circuit controller, the extinguishing chemical that discharges in the storage tank (storage bottle) is put out a fire.Even electric control system has not been sent wrong control signal through time-delay at running, but because gas circuit delayer delay time does not arrive, driving gas can not arrive the gas circuit controller, so regional selector valve still can not move.Thereby avoid causing that low temperature and smothering effect caused personnel's injures and deaths when fire extinguishing system mistake was sprayed.
2, this gas control mechanical type time-delay mechanism is the time-delay mechanism of complete mechanical formula; The time of time-delay is adjustable at 0～30 second; Do not receive the influence of electric control system fault or external electromagnetic interference; Reliable stable, ensured reliable evacuation delay time, be the critical component that improves the automatic fire extinguishing system security.
Description of drawings
Accompanying drawing 1 is a gas control mechanical type time-delay mechanism theory diagram;
Accompanying drawing 2 is the structural representation of gas control mechanical type time-delay mechanism reset mode;
Among the figure: the 1-push rod; The 2-spring; The 3-transmission arm; The 4-stay cord; 5-pawl bar; The 6-cam disc; 7-delayer starting bar; The 8-release arm; 9-discharges cylinder; The 10-clockwork; The 11-release lever; The 12-blocking lever; The 13-release cam; 14-terminal location switch; The 15-control valve; 16-air inlet a; 17-air inlet b; The 18-gas outlet; 19-transmission arm position switch.
The specific embodiment
Below in conjunction with preferred implementation the invention is further specified:
Delayer is CO
2The part of fire extinguishing high-pressure system and low-pressure system, its effect are that the startup gas that gets into delayer is delayed time behind the certain hour, could be through the control valve of the delayer bottom of opening, thus starting the selector valve and extinguishing chemical storage bottle of fire extinguishing system, enforcement is put out a fire.The gas control mechanical type time-delay mechanism of present embodiment is to adopt pneumatic control to trigger the beginning of delay time, and be to adopt machinery control the early warning announcement time time delay, and adjustable.
In conjunction with Fig. 1, this device action principle is following: start bottle A reception and send fire extinguishing control signal FA from automatic fire alarm control system, this signal is the alarm signal of output immediately behind the fire.Start and export startup gas Q1 after bottle A receives signal FA, start gas Q1 and trigger the mechanical delay device, the time length of mechanical delay device time-delay can be carried out the scene setting, and delay time arrives, and drive rod F moves, and triggers control valve.Fire Autoalarm is sent fire extinguishing control signal FB simultaneously, starts to export driving gas Q2 after bottle B receives signal FB, and the control valve output of driving gas Q2 after triggering is opened extinguishing devices such as bottle group, valve, the enforcement fire extinguishing.
In conjunction with Fig. 2; When gas control mechanical type time-delay mechanism is in reset mode and is reset condition; The upper end is provided with the inverted T shape release arm 8 that is hinged on the shell in the shell, and the perpendicular section of inverted T shape release arm top is a release cam 13, and release cam presses terminal location switch 14 contacts on its top; Inverted T shape release arm crosspiece is provided with protruding stops, and crosspiece one end bottom is provided with and discharges cylinder 9; Delayer starting bar 7 tip portions one end is pressed against on the stops, and delayer starting bar other end rear portion is provided with clockwork 10, the front portion is provided with cam disc 6; Pawl bar 5 tip portions one end is pressed against on the cam disc wheel rim, and the pawl bar other end is hinged on the shell, and picking up of this end of pawl bar connects stay cord 4 one end end spheroids in the groove, and stay cord other end end spheroid is connected in the ball-and-socket of transmission arm 3; Transmission arm 3 is connected with push rod 1 one ends, is arranged with spring 2 on the push rod, and the push rod other end is through release lever 11 drive control valves 15; Wherein, spring is arranged between gas control mechanical type time-delay mechanism and the control valve, and air inlet links to each other with control valve through pipeline respectively with the gas outlet on the gas control mechanical type time-delay mechanism shell.
During the fire extinguishing action, no delayed startup gas discharges cylinder 9 by the pneumatic triggering of air inlet a16, and release cylinder 9 piston rods stretch out and lean release arm 8, and release arm 8 rotates counterclockwise, and release cam 13 drives terminal location switches 14, and this switch can be connected alarming horn; Delayer starting bar 7 slips over stops and leans on clockwork 10 to discharge counterclockwise and rotate.Simultaneously, cam disc 6 also rotates with the delayer starting bar, and pawl bar 5 most advanced and sophisticated ends of on cam disc 6 wheel rims, swinging also rotate with cam disc 6; When arriving the off-position, pawl bar 5 is shown cam disc 6, and stay cord 4 is loosened immediately.Time delay, after blocking lever 12 moved, pole shutoff 3 unclamped immediately when finishing, and interlocking is by electric monitoring.When stay cord 4 loosens, transmission arm 3 overturning forward, spring flicks release, and push rod 1 moves downward and drives release lever 11, opening controlling valve 15, air inlet b17 and gas outlet 18 make driving gas release through pipeline and the control valve pneumatic flow channel of formation that links respectively.Air inlet b17 is that electrical delay starts the gas access, and startup gas got into control valve 15 after electrical delay finished, after release lever 11 actions, by gas outlet 18 to selector valve and extinguishing chemical storage bottle enforcement fire extinguishing.
This gas control mechanical type time-delay mechanism can be used blocking lever 12 lockings, can prevent transmission arm 3 overturning forward after the locking, drives release lever 11 thereby stop push rod 1 to move downward.
If will adjust delay time, the screw that unclamps on the cam disc 6 is higher than clockwork 10 about 2～3mm up to adjusting to cam disc.Along when the pointer direction rotating cam dish, be extended time delay; And when counterclockwise rotating, then be shortened time delay.
Claims (4)
1. gas control mechanical delay device; Comprise shell with air inlet and gas outlet; It is characterized in that: be provided with the trigger mechanism that discharges cylinder (9) and release arm (8) formation in the shell; The mechanical delay mechanism that delayer starting bar (7), clockwork (10) and cam disc (6) constitute, the linkage driving mechanism that pawl bar (5), stay cord (4), transmission arm (3), push rod (1) and spring (2) constitute; Wherein, release arm (8) is hinged on the shell, and release arm is provided with protruding stops; Delayer starting bar (7) tip portion one end is pressed against on the stops, and delayer starting bar (7) other end rear portion is provided with clockwork (10), the front portion is provided with cam disc (6); Pawl bar (5) tip portion one end is pressed against on cam disc (6) wheel rim, and pawl bar (5) other end is hinged on the shell, and this end of pawl bar connects stay cord (4) one ends; The stay cord other end is connected on the transmission arm (3), and transmission arm (3) is connected with push rod (1) one end, is arranged with spring (2) on the push rod (1), and the push rod other end is through release lever (11) drive control valve (15); Air inlet links to each other with control valve (15) through pipeline respectively with the gas outlet and constitutes pneumatic flow channel.
2. gas control mechanical delay device according to claim 1 is characterized in that: also be provided with blocking lever (12) in the shell, blocking lever is pressed against on the transmission arm (3), and blocking lever presses transmission arm position switch (19) contact on its top.
3. gas control mechanical delay device according to claim 1 is characterized in that: said stay cord (4) two ends are set to spheroid, and said spheroid is placed in the ball-and-socket of transmission arm (3) respectively and the picking up in the groove of pawl bar (5).
4. gas control mechanical delay device according to claim 1 is characterized in that: said release arm (8) is an inverted T shape, and the perpendicular section of inverted T shape release arm top is release cam (13), and said release cam presses terminal location switch (14) contact on its top; Inverted T shape release arm crosspiece is provided with protruding stops, and crosspiece one end bottom is provided with and discharges cylinder (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201674234U CN202122787U (en) | 2011-05-24 | 2011-05-24 | Air-controlled mechanical delaying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201674234U CN202122787U (en) | 2011-05-24 | 2011-05-24 | Air-controlled mechanical delaying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202122787U true CN202122787U (en) | 2012-01-25 |
Family
ID=45485862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201674234U Expired - Lifetime CN202122787U (en) | 2011-05-24 | 2011-05-24 | Air-controlled mechanical delaying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202122787U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107537125A (en) * | 2016-06-28 | 2018-01-05 | 江苏华燕船舶装备有限公司 | For CO2The delay unit and its method of work of fire extinguisher system apparatus |
| CN112121348A (en) * | 2020-09-28 | 2020-12-25 | 山东久泰消防科技有限公司 | Action trigger mechanism for automatic fire-fighting device |
| CN112121338A (en) * | 2020-09-28 | 2020-12-25 | 山东久泰消防科技有限公司 | Automatic fire-fighting device |
-
2011
- 2011-05-24 CN CN2011201674234U patent/CN202122787U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107537125A (en) * | 2016-06-28 | 2018-01-05 | 江苏华燕船舶装备有限公司 | For CO2The delay unit and its method of work of fire extinguisher system apparatus |
| CN112121348A (en) * | 2020-09-28 | 2020-12-25 | 山东久泰消防科技有限公司 | Action trigger mechanism for automatic fire-fighting device |
| CN112121338A (en) * | 2020-09-28 | 2020-12-25 | 山东久泰消防科技有限公司 | Automatic fire-fighting device |
| CN112121338B (en) * | 2020-09-28 | 2021-12-17 | 山东久泰消防科技有限公司 | Automatic fire-fighting device |
| CN112121348B (en) * | 2020-09-28 | 2021-12-17 | 山东久泰消防科技有限公司 | Action trigger mechanism for automatic fire-fighting device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120125 |