CN201815029U

CN201815029U - Automatic fire extinguishing device for automobiles

Info

Publication number: CN201815029U
Application number: CN2010201182790U
Authority: CN
Inventors: 年丰
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-02-25
Filing date: 2010-02-25
Publication date: 2011-05-04
Anticipated expiration: 2020-02-25

Abstract

An automatic fire extinguishing device for automobiles is used when automobile engines are in spontaneous combustion. The automatic fire extinguishing device consists of a stored pressure fire extinguisher and a trigger mechanism. The trigger mechanism mainly comprises a main spring 16 which is pre-compressed and arranged below a handle of the fire extinguisher, the bottom of a draw bar 12 penetrates through the main spring and handle of the fire extinguisher so that the draw bar is hung on a horizontal swing arm 10, the left end of the swing arm is erected on a vertical defecting lever 8, two pre-compressed trigger springs are arranged on the left side under the deflecting lever, each trigger spring is tensioned by a brake line, and the other end of the spring is retained in a fusible plug switch to remain stress. When a fusible plug 27 in an engine bin is fused under high temperature, the trigger springs 4 move rightwards to push the deflecting lever 8 to move leftwards, the swing arm 10 is then driven to fall and the draw bar 12 is driven to slip off, the main spring 16 is popped downwards to turn on the fire extinguisher through a puller 13, so that the fire extinguisher can be used for extinguishing fire.

Description

A kind of automobile automatic fire-fighting device

Affiliated technical field: the automatic fire-fighting device under the spontaneous combustion situation, particularly take place in a kind of automobile automatic fire-fighting device in the enging cabin of automobile.

Background technology: automobile bring convenience to people, comfortable in, the accident of spontaneous combustion takes place because of a variety of causes, also happen occasionally.Though all be equipped with fire extinguisher on each car, must go fire extinguishing by the hand-held operation of people and near burning things which may cause a fire disaster since spontaneous combustion when taking place suddenly with fast, the party generally can be panic.Existing automatic fire fighting technology adopts electron controls technology mostly, but because working environment is very abominable, has the unstable operation phenomenon easily, and when automobile is short-circuited the fault power shortage, can cause can't working when accident.

The utility model content: the purpose of this utility model is the keypoint part of spontaneous combustion easily to take place and a kind of automatic fire fighting unit of designing at automobile.

The technical solution of the utility model is: the reservoir pressure fire extinguisher and a cover automatic starting device of automobile are combined, automatically the switching device that triggers opened a main spring of compression in advance by being arranged in the Yin Wendu rising of starting in the cabin, main spring discharges elastic force and depresses the fire extinguisher handgrip, blows out extinguishing chemical by the jet pipe that prolongs fire position is put out a fire.

A kind of fire plant that adopts such scheme, its primary structure is: in the protection casing of device a reservoir pressure fire extinguisher is installed; A main spring of compression is in advance arranged below the handgrip of fire extinguisher; Pull bar backing passes main spring and its upper end of the upper and lower handgrip of fire extinguisher hangs over above the swing arm of a level, and the last intersection of pull bar and last handgrip also has a clip; The right-hand member of swing arm is rotating shaft, the deflection lever upper end that the left end frame is being holded up; Deflection lever lower end is close to the right side of the triggering spring of compression in advance; There is brake cable the centre of triggering spring, and the tension of brake cable right-hand member triggers spring, passes the protection casing left and extends in the enging cabin, and its left end is held in the fusible plug switch; The jet pipe of fire extinguisher is also corresponding to be extended in the enging cabin.When the fusible plug switch is experienced design temperature, can make the meltable stopper ring fusing in the switch, and cause the triggering spring of brake cable right-hand member to eject, finally cause this device to start.

Compared with prior art, this automatic fire-fighting device mainly adopts the mechanical type control mode, its objective is not rely on the car power supply as control, and the power shortage even automobile is short-circuited when accident, this device also can normally be had an effect.

(5) description of drawings

Figure one is that this apparatus structure signal of trigger mechanism overhead is graphic;

Figure two is that this apparatus structure signal of trigger mechanism underneath type is graphic;

Figure three is internal structure schematic diagrames of fusible metal plug switch;

Figure four is electric heating union switch structural representations that the fusible plug switch is formed in conjunction with bimetal leaf;

1 is fire extinguisher nozzle among the figure, the 2nd, and fusible plug switch, the 3rd, brake cable, the 4th, trigger spring, the 5th, spring shim, the 6th, sleeve pipe, the 7th, adjusting nut, the 8th, deflection lever, the 9th, lever shaft, the 10th, swing arm, the 11st, swing arm rotating shaft, the 12nd, buckle pull bar, the 13rd, fixedly draw button, the 14th, handgrip on the fire extinguisher, the 15th, main spring upper spacer, the 16th, main spring, the 17th, main spring bottom spacer, the 18th, fire extinguisher, the 19th, rubber locating piece, the 20th, device box, the 21st, the push-plate of band push rod, the 22nd, push rod holder, the 23rd, balancing spring, the 24th, fusible plug switch case, the 25th, steel wire bulb, the 26th, steel wire in the brake cable, the 27th, fusible metal ring plug, the 28th, bimetal leaf, the 29th, positive contact, the 30th, negative contact, the 31st, short circuit line, the 32nd, ground lead, the 33rd, insulating washer, the 34th, insulating barrier, the 35th, device line taking alarm.

(6) specific embodiment

Referring to figure one, 1 is the jet pipe nozzle of fire extinguisher in the drawings, and it and fusible plug switch 2 can walk abreast and be arranged in the select location of enging cabin, and it can have a plurality of branches.Referring to figure three, the shell of fusible plug switch 2 is metal-back pipes 24 simultaneously, and upper end closed only leaves an aperture, can only freely pass through the stone dead wire 26 in the brake cable 2; The lower port of the pipe funnel that caves inward, its small opening diameter is more bigger than the bulb 25 of steel wire end, can hold it freely passes through, between funnel and steel wire bulb 25, clip an annular stopper ring 27 of making by fusible metal, its internal diameter is littler than bulb 25, and external diameter is bigger than funnel aperture, thereby forms an obstruction between steel ball 25 and funnel.(will point out especially: the material of this fusible plug can be made with reference to the material of the safety fusible plug bottom the condenser in the ammonia machine; its Main Ingredients and Appearance is tin and antimony; its protectiveness fusing point is 75 ℃) characteristics of fusible plug switch guarantee do not melting under normal temperature exactly; form firm obstruction; and when the temperature of setting; can melt at once during such as 100 ℃, make to block to disappear.3 is brake cable among the figure.One end and the bulb 25 of the steel wire 26 in (the callipers brake fare that is equal to bicycle use), brake cable are fixed as one, and are stuck in fusible plug 27 outsides in the switch 2; There is one section screw mandrel at other end end, and same and steel wire 26 is fixed as one, and is held in the right-hand member that triggers spring 4 by adjusting nut on the screw mandrel 7 and pad 5.The outer protective sleeve of brake cable 3 is non-telescoping, and its end withstands on the shell of fusible plug switch 2, and the other end withstands on the outside of casing 20, leaves on the casing and only holds the eyelet that steel wire 26 passes through.It is compressed in advance triggering spring 4, strain because the steel wire in the brake cable passes in the middle of it and with it, and end gets clogged in addition, makes spring 4 remain on stress state.Each triggers spring all has a brake cable to connect mutually with the fusible plug switch, forms one group of complete trigger switch, and 2 or 4 groups of such trigger switches can be arranged in this device.The outside of adjusting nut 7 also has a sleeve pipe 6, and its effect is to make the release force that triggers spring can affact on the deflection lever 8 rightly; Deflection lever 8 is the levers of 9 swings around the shaft.Sleeve pipe 6 is close on its left side, lower end, and its upper end is slightly curved to the right, is supporting the left end of the swing arm 10 of a level above, a little ball is arranged, to increase the sensitivity of device on both contact-making surfaces.Swing arm 10 can be rotated around rotating shaft 11 equally; The top pull bar 12 of hanging a upper end buckle of pendulum thumb 10, pull bar 12 is passed down through the handgrip up and down of fire extinguisher, it is fixing with bottom spacer 17 to reach main spring dividing plate 15 and main spring 16, in this process, the junction on pull bar 12 and the fire extinguisher on the handgrip 14 also has one to draw button 13 and pull bar to be fixed as one.Main spring 16 is compressed in advance springs, and it is positioned at the below of dividing plate 15; Under safe condition, main spring 16 is strained by pull bar 12, keeps stress; Its pulling force make simultaneously the swing arm 10 on top be pressed on deflection lever 8 above.Fire extinguisher 18 is installed in the casing 20 with above-mentioned main device, at the fire extinguisher bottle rubber locating piece 19 is arranged all up and down, and this device compresses with case lid at ordinary times, can prevent that bottle from rolling, and shields to this device simultaneously.

The mechanism of device is such, when any one the fusible plug switch that is positioned at enging cabin is experienced high temperature (100 ℃) and make fusible plug 27 fusing, block and disappear, triggering spring 4 is inconjunction with steel wire 26 and moves to right together, its elastic force is greater than the reverse pressure of deflection lever 8, and promotion deflection lever 8 lower ends move to right more than the 2cm, be enough to make between lever top and the swing arm 10 and stagger, swing arm 10 is fallen under pull bar 12 pulling force at once, pull bar is landing also, main spring 16 ejects downwards, its elastic force fortune is greater than fire extinguisher handgrip opening force, by pull bar 12 and on the button 13 that draws the last handgrip 14 of fire extinguisher depressed, (pay special attention to: the safety plug of fire extinguisher should be in the state of unpluging all the time in this device) puts out a fire to fire position by jet pipe.

Figure two is depicted as the another kind of embodiment of this fire plant, and its cardinal principle structure is same as structure shown in the figure one, and difference is; Pull bar 12 upper ends are buckled on the fire extinguisher on the handgrip 14, and the lower end extends into a push rod overhead in deflection lever 8 upper ends; Lever 8 is vertical balancing point shapes, and there is the recessed slightly strong point upper end of rotating shaft 9; The push-plate 21 that a band push rod is arranged below deflection lever 8.Its left end is close to sleeve pipe 6, and right-hand member is close to the deflection lever, and push rod push-plate 21 is installed in the push rod holder 22, can move left and right; The right side also has a balancing spring 23 below lever 8, and its elastic force is weaker than and triggers spring 4, and its effect is to prevent from that deflection lever 8 and push rod push-plate 21 from moving to right because of vibrations to cause false triggering.Its mechanism is when triggering spring 4 At time of eject to the right, overcome the resistance of balancing spring 23, promoting push-plate push rod 21 moves to right, promote deflection lever 8 right pendulum, fall the upper end that causes lever 8 square neck left, causes pull bar 12 landing from the strong point, main spring 16 ejects downwards, thereby open fire extinguisher, the advantage of this structure is the side that trigger mechanism all can be arranged in fire extinguisher, thereby can further reduce the height of casing.

Figure 4 shows that the common electric smelting union switch structural representation that constitutes of bimetal leaf and fusible plug switch, its mechanism is such, and contact 29 directly links to each other with battery positive voltage, bimetal leaf 28

Insulate with housing 24, when bimetal leaf 28 is experienced high temperature (100 ℃), it curves inwardly and makes contact 29,30 closures, electric current to bimetal leaf, to fusible plug 27 1 sides, passes through lead-in wire 32 ground connection by short circuit line 31 by 29-30 again, form short-circuiting effect, fusible plug 27 melts at once, causes this device to start, and line 31 disconnects simultaneously; Meanwhile, also can pass through line 35 conducting alarms, produce and report to the police.

Also can use bimetal leaf separately, at this moment the magnetic valve of a band push rod can directly be set in the left side of deflection lever 8, magnetic valve is communicated with switch, direct promotion deflection lever 8 when having an effect and trigger this device with lead as temperature sensitive switch.

Claims

1. automobile automatic fire-fighting device, form by a reservoir pressure fire extinguisher and a cover trigger mechanism, it is characterized in that: location and installation has fire extinguisher (18) in the device box (20), there is a main spring (16) of compression in advance fire extinguisher handgrip below, pull bar (12) backing passes main spring and dividing plate (15) reaches, following handgrip and upper end hang over swing arm (10) above, deflection lever (8) upper end that swing arm (10) left end frame is being holded up, lever (8) lower end is close to the right side of the triggering spring (4) of compression in advance, steel wire (26) one ends tension in the brake cable (3) triggers spring (4), the other end is held in the fusible metal plug switch (2), fusible plug switch (2) can make stopper ring (27) fusing in the switch when experiencing design temperature, and causes this device to start.

2. automobile automatic fire-fighting device according to claim 1 is characterized in that: trigger the below that spring (4) and deflection lever (8) etc. all can be positioned at dividing plate (15); The upper end of pull bar (12) fastens the last handgrip (14) of fire extinguisher, be passed down through dividing plate (15) and main spring (16) and become the upper end of a push rod overhead at vertical deflection lever (8), push-plate (21) left end of a band push rod is attached to and triggers spring (4) right side, the right side is attached to the lower-left side of lever (8), the right side of lever (8) also has a balancing spring (23), and push-plate (21) can move right when stressed.

3. automobile automatic fire-fighting device according to claim 1, it is characterized in that: fusible metal plug switch (2) is to leave aperture by an one end, the cave inward tubular shell (24) of funnel of the other end, steel wire (26) in brake cable (3) and the brake cable, the fixedly bulb (25) of steel wire end, and the fusible metal ring plug (27) that is clipped between bulb (25) and the funnel is formed jointly.

4. automobile automatic fire-fighting device according to claim 1 is characterized in that: fusible metal plug switch can also be formed a union switch in conjunction with bimetal leaf; Positive contact (29) connects battery positive voltage on the car, and negative contact (30) is connected to meltable stopper ring (27), and lead-in wire (32) one ends connect fusible plug (27), other end ground connection.