CN2478617Y

CN2478617Y - Automatic fire extinguisher for fire

Info

Publication number: CN2478617Y
Application number: CN 00225377
Authority: CN
Inventors: 刘在能
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-08-03
Filing date: 2000-08-03
Publication date: 2002-02-27
Anticipated expiration: 2010-08-03

Abstract

The utility model refers to an automatic fire extinguisher, consisting of the fire extinguishing agent container, nozzle, valve, valve drive mechanism and drive controlling mechanism. The drive mechanism is composed of the lever, the mounted plate, the torsional spring and the lever support. The drive controlling mechanism includes the contact thermometer, the fusible wire, the heating cord, the battery, the traverse and etc. Two long handles of the torsional spring arranged on the level support respectively pressed the far-ends of the level and the mounted plate. The fusible wire fastens the level and the mounted plate which are fixed in parallel. In addition, the heating cord is winded on the fusible wire and connected with the contact thermometer and the battery in a ring circuit. In case that temperature rises to the set value, the heating cord warmed up will burn out the fusible wire. As a result, the level with released bound will press down the spool and start the valve to blow out fire extinguishing agent and extinguish fire automatically, under the action of resilience force.

Description

Automatic fire extinguisher

The utility model belongs to fire-fighting equipment, is a kind of self-extinguishing utensil.

The automatic fire extinguisher that extensively adopts both at home and abroad has water jet automatic fire extinguisher, CO at present ₂Automatic Fire Extinguisher, 1211 Automatic Fire Extinguishers or the like, it mainly is made up of valve body, spool, spool driving mechanism and driving controlling organization etc., driving controlling organization is the glass tube of fusible metal locking plate and interior dress expanding liquid, its principle is: when temperature reached predetermined value, fusing of fusible metal sheet or glass tube were inflated liquid and burst, and cause the binding force of spool to be disengaged, valve is opened automatically, and the ejection extinguishing chemical is realized self-extinguishing.Because the fusing of fusible metal sheet needs a period of time, add the inconsistent of chemical analysis, also will cause the difference of fusing point, expanding liquid heat absorption in the glass tube is expanded and is also needed a period of time, add error, the error of addition and the inconsistency of glass tube intensity etc. of expanding liquid prescription, this has just caused existing automatic fire extinguisher to have following drawback: 1, temperature error big (the current standard allowable error is 15%); 2, response speed is slow; 3, poor reliability.Its result will cause: when temperature sharply rises to predetermined value or surpass several times of predetermined values, its extinguisher valve can't be opened fire extinguishing, so miss best fire extinguishing opportunity, lose or reduced the effect of Automatic Fire Extinguisher self-extinguishing, so fire incident still takes place repeatedly.

The purpose of this utility model provides a kind of temperature error little (＜1 ℃), response speed fast (＜2s), the automatic fire extinguisher of reliability height and highly versatile.

Major technique measure of the present utility model is as follows: it is by foamite container, the valve body of belt spool, extinguishing chemical jet pipe, spool driving mechanism and drive composition such as controlling organization.Spool is a compression leg.Driving controlling organization is made up of fusible line, heating wire, battery, lead and contact temperature meter etc.Wherein lever can rotate around leg, and on leg torsionspring is installed, and an end of torsionspring is pushed down lever, and the other end is pushed down fixed head.With fusible line lever far-end and fixed head far-end are strained and fixed then, make the lever near-end leave compression leg and be advisable, on fusible line, twine heating wire again, then with lead with heating wire, battery links to each other with the contact temperature meter and constitutes current loop.When temperature reaches predetermined value, the conducting of contact temperature meter, heating wire gets electric heating, and with fusible line fusing, lever is depressed compression leg under the effect of torsionspring bounce, opens valve.The ejection extinguishing chemical is realized self-extinguishing.

The utility model is owing to adopt said structure, its temperature error, response speed just depend on the contact temperature meter, and the contact temperature meter is very good in this performance on the one hand, so automatic fire extinguisher of the present invention has temperature error little (＜1 ℃), the fast (＜2s) advantages such as reliability height, highly versatile of response speed.

The invention will be further described below in conjunction with drawings and Examples:

Fig. 1 is the automatic fire extinguisher structural representation.

The utility model is mainly by foamite container 1; 2, fixing nut; 3, The extinguishing chemical spout; 4, valve; 5, compression leg; 6, lever; 7, reverse spring; 8, fixed head; 9, contact thermometer; 10, lead; 11, battery; 12, electric heating Silk; 13, fusible line; 14, outer cover; 15, lever leg; 16, the group such as safety fastener Become. Wherein driving mechanism by lever 6, fixed head 8, reverse spring 7 and lever props up Pin 15 forms, and reverses spring 7 and is sleeved on the lever leg 15, and lever leg 15 is thick stick Bar 6 and fixed head 8 join together, and rotation that can be freely. Drive control mechanism by easily Fuse 13, heating wire 12, battery 11, contact thermometer 9 consist of current loop. Work as temperature When degree rises to predetermined value, 9 conductings of contact thermometer, heating wire 12 heatings will be easily Fuse 13 blows, thereby has removed the constraint power to lever 6, and at this moment lever 6 is borrowed and reversed The reaction force of spring 7 is pressed compression leg 5 lower, opens valve, and the ejection extinguishing chemical goes out automatically Fire.

Embodiment:

As: Fig. 1 is the Automatic Fire Extinguisher of a band duck tongue type, and it can be dry powder extinguisher, CO ₂Fire extinguisher, air-foam fire extinguisher, chemical fire extinguisher, the port of export at foamite container 1, one duck tongue type valve 4 is installed, and fixing with hold-down nut 2, the driving mechanism of valve 4 is that compression leg 5, driving controlling organization comprise lever 6, torsionspring 7, fixed head 8, contact temperature meter 9, lead 10, battery 11, heating wire 12, fusible line 13.Lever 6 can rotate around leg 15, is equipped with a torsionspring 7 on leg, and the two ends of torsionspring 7 extend into two long handles, wherein a long handle presses fixed head 8, another long handle is pressed on the lever 6, with fusible line 13 lever 6 and fixed head 8 is strained and fixed, and makes it be in parastate.On fusible line 13, twine a heating wire 12, and heating wire 12, battery 11, contact temperature meter 9 are unified into loop with lead 10.When temperature reaches predetermined value, 9 conductings of contact temperature meter, fusible line 13 is blown in heating wire 12 heatings, and lever 6 rotates around leg under the bounce effect of torsionspring 7, compression leg 5 is depressed, open valve, the self-extinguishing of ejection extinguishing chemical is in order to prevent to shake disconnected fusible line 13 in transit, can add a safety fastener 16 at the same position that fusible line is installed, this safety fastener is removed when the state of alert.All parts all use outer cover 14 to cover, and outer cover 14 is fixed on the valve housing.

Claims

1, a kind of automatic fire extinguisher, have foamite container, valve body and spool, it is characterized in that: it also has a spool driving mechanism and and drives controlling organization, wherein drives controlling organization and comprises a contact temperature meter (9), fusible line (13), battery (11) and heating wire (12).Heating wire (12) is wrapped on the fusible line (13), and fusible line (13) cover hangs over the far-end of lever (6) and fixed head (8), and battery (11), heating wire (12), lead (10) constitute current loop with two contacts of contact temperature meter (9).

2, automatic fire extinguisher according to claim 1 is characterized in that: spool is a compression leg (5).The spool driving mechanism is lever (6), fixed head (8), lever leg (15), torsionspring (7).The far-end of lever (6) and fixed head (8) is pressed at the two ends of torsionspring (7) respectively.

3, automatic fire extinguisher according to claim 1 is characterized in that: be provided with an outer cover (14) and a safety fastener (16), safety fastener (16) two ends are hung on lever (6) and the fixed head (8), make both be in parastate.