CN2676955Y - Portable near ground type wind fire extinguisher machine - Google Patents

Abstract

The utility model provides a portable near ground type wind power fire extinguisher for saving forest fire disaster, compising an engine, a clutch, a driving shaft assembly, a speed reducer, a blower and a wind-collection cover. The engine actuates the speed reducer via the clutch and the driving shaft assembly to drive the blower to rotate so as to use the wind power (energy)generated by the blower to extinguish fire. The portable near ground type wind power fire extinguisher has simple structure and light weight. The axial flow type blower is close to the ground (fire source), and the output wind direction of the axial flow type blower is direct to the fire source, so that a 'wind blowing' type is used to extinguish fire. Thus, the fire extinguishing wind speed of the portable near ground type wind power fire extinguisher is 3-4 times higher than common wind power extinguishers, and the wind energy availability is obviously increased with favorable fire extinguishing effect; the working parts of the portable near ground type wind power fire extinguisher is free from the burn of the flame with long service life, and thus operators can much approach to the fire source; the portable near ground type wind power fire extinguisher can be used for saving larger forest fire disaster. The wind-collection cover makes the wind power gathered with better fire extinguishing effect, and can protects the vanes of the blower from bumping with obstacles, such as tree branches, etc.

Description

Portable near-earth formula wind fire-extinguisher

Technical field:

The utility model relates to a kind of forest fire protection and extinguishing machinery, portable near-earth formula wind fire-extinguisher.

Background technology:

At present, known common wind fire-extinguisher all is to adopt the backpack centrifugal blower, and overhead far (〉=1m, wind speed≤26m/s), also useful flexible pipe extends to the air outlet of blower fan subaerial fan outlet during fire extinguishing.Other has the wind-force sweeping type spray (patent No.: 92245918.5), adopt the drawing-in type axial flow blower, the miniature band fire fire grain in the scene of a fire can only be sucked the air channel, extinguish through friction stir.

Hence one can see that, the problem that technique known exists is: well-known, the wind-force fire-fighting principle mainly is to utilize the kinetic energy of the wind-force that flows fast rapidly the heat energy in the scene of a fire to be taken away, and reduce combustible and comburant temperature and reach the fire extinguishing order, so wind-force is healed nearly effect better apart from burning things which may cause a fire disaster.Common wind fire-extinguisher air outlet overhead (burning things which may cause a fire disaster) too far away (〉=1m), the fire extinguishing wind speed is than the obvious decline of outlet, kinetic energy is and square being directly proportional of wind speed, it is a lot of therefore really to be used to the wind energy loss of putting out a fire, and can not make full use of the wind energy of blower fan.With flexible pipe air outlet is extended to subaerial common wind fire-extinguisher, overcome above-mentioned shortcoming to a certain extent, but with the way of lengthened hose, the one, the windage of flexible pipe is bigger, the wind energy loss is bigger, and the 2nd, it is not too convenient to operate, so problem does not obtain fine solution.In addition, described wind-force sweeping type spray: the one, the drawing-in type axial flow blower can only siphon away miniature band fire fire grain, fire extinguishing is helped little; The 2nd, be subjected to the restriction of portable spray, the air channel can not be oversize, otherwise the wind energy loss is too big, weight also is problem, so the band that sucks fire fire grain might not extinguished the air channel that just flown out, drop on outside the unburned scene of a fire, form new burning things which may cause a fire disaster, lead to new hidden danger; The 3rd, the blower fan air intake of this spray is easy to blocked, and the applicant may recognize this point, so increased filter at the inlet of blower fan; The 4th, the use of filter is shortened effective attack time of this spray greatly.Because the combustible in the scene of a fire is a lot of and varied, the cleaning after the obstruction is very bothersome time-consuming, does not resemble that the applicant is said gently then to be increased windage loss or will often shut down cleaning as long as suitably lift blower fan and can remove, and clears up untimely even may damage blower fan; The 5th, adopt the drawing-in type blower fan, blower fan and decelerator are under the barbecue of flame, and the strength of materials reduces, and the lost of life, particularly decelerator have the danger of being baked combustion explosion.

Summary of the invention:

The purpose of this utility model is that a kind of portable near-earth formula wind fire-extinguisher will be provided, and it is not only simple in structure, in light weight, and fire extinguishing wind speed height, wind energy utilization height, good extinguishing effect, do not stop up, can be self cooling.

The technical scheme in the invention for solving the technical problem is: this portable near-earth formula wind fire-extinguisher mechanically is linked in sequence and is formed by little (little) h type engine h, clutch, power transmission shaft combination, decelerator, blower fan, wind-collecting cover.The power of engine drives input shaft of speed reducer by clutch, power transmission shaft combination, is driven the blower fan of ground proximity (burning things which may cause a fire disaster) again by the output shaft of decelerator, by wind-force (energy) fire extinguishing that it produced.Described portable near-earth formula wind fire-extinguisher, the blower fan that is adopted is an axial-flow type, and the output wind direction promptly adopts the fire extinguishing of " blowing " formula to landing ground (burning things which may cause a fire disaster).Can certainly remove clutch, increase it just in order to improve that short distance is shifted and security during starting, to save fuel oil.Wind-collecting cover also is dispensable, installs that it can make that wind-force is more concentrated, barriers such as the blade that prevents blower fan and branch bump against the protection blower fan.Wind-collecting cover can be with respect to blade rotation, also can be motionless with respect to vanes fixed.With light-alloy with blower fan and wind-collecting cover cast solid structure, better effects if.The power transmission shaft pattern length is between 0.6-1.6m.

The advantage of the portable near-earth formula of the utility model wind fire-extinguisher is: one, the direct ground proximity of blower fan (burning things which may cause a fire disaster), under the situation of equal-wattage and rotating speed, the fire extinguishing wind speed can improve 3-4 doubly, Wind Power Utilization efficient height, good extinguishing effect.Two, axial flow blower is simple in structure, and is in light weight.Three, adopt the fire extinguishing of " blowing " formula, do not have the worry of stopping up.Though four blower fans are near-earth (burning things which may cause a fire disaster), adopt the fire extinguishing of " blowing " formula, decelerator and blower fan etc. are in the air inlet of blower fan near the parts of burning things which may cause a fire disaster, " self cooling " effect is arranged, and the strength of materials is guaranteed, and particularly decelerator can not be subjected to the barbecue of high temperature, can put out a fire for a long time, the life-span is long.Five, " blowing " formula fire extinguishing presses to flame away from the operator, helps the operator more near the burning things which may cause a fire disaster fire extinguishing, promptly can swat bigger forest fire.

Description of drawings:

Concrete structure of the present utility model is provided by the following examples and accompanying drawing.

Accompanying drawing is the building block principle figure according to the portable near-earth formula wind fire-extinguisher of design proposition of the present utility model.

In the accompanying drawing: 1. engine, 2. clutch, 3. power transmission shaft combination, 4. decelerator, 5. blower fan, 6. wind-collecting cover, 7. blade.

The specific embodiment:

Below in conjunction with the details of description of drawings according to the portable near-earth formula wind fire-extinguisher that the utility model proposes.

As accompanying drawing, this portable near-earth formula wind fire-extinguisher is connected to form by engine [1], clutch [2], power transmission shaft combination combination [3], decelerator [4], blower fan [5], wind-collecting cover [6] sequential machine.Engine [1] adopts the engine (nominal power 1.65kw/7000min) of 2GC-3 (DG3) type brush cutter, also can adopt little (little) h type engine h of other similar weight certainly, is that the engine of common wind fire-extinguisher is used as power as the 1E52F engine.The power of engine [1] is through the power shaft of clutch [2], power transmission shaft combination [3] driving decelerator [4], and its output shaft drives blade [7] rotation of blower fan [5], puts out a fire with the wind-force that it produced.Clutch [2] is centrifugal, and the quantity of blade [7] is preferably got 4-8 between 3-16.Power transmission shaft combination [3] one ends link to each other with engine [1], the other end links to each other with decelerator [4], play axially and radially stationary engine [1], clutch [2] driven disc, decelerator [4] and the power of engine [1] reached the effect of near-earth, its length is between 0.6-1.6m.The sharp angle of decelerator [4] power shaft and output shaft is 60 °, and speed reducing ratio is 3.5, adopts other numerical value also to be fine certainly, and just operability or fire extinguishing weak effect are a little.Blower fan [5] adopts simple and easy axial flow blower (rotating speed can be selected, and is preferably between the 2000-4000r/min) between 1000-7000r/min, wind direction is to ignition source during the fire fire, and promptly " blowing " formula is put out a fire.Wind-collecting cover [6] welds together with the outer end of the blade [7] of blower fan [5], fixes with respect to blade [7], for condition has been created in combined lighter development.The blade [7] of blower fan [5] is used the sheet metal punch forming, and the number of blade can adopt 3-16 sheet (originally being embodied as 8), and its outer end rotating diameter is 220mm.By the portable near-earth formula wind fire-extinguisher that embodiment makes, weight is close with common wind fire-extinguisher, and the common wind fire-extinguisher of power ratio is little more than 50%.The actual proof of using: fire-fighting efficiency improves 30% than common wind fire-extinguisher; Improve 10% than wind-force sweeping type spray, weight reduces 30%; The operator can be more near burning things which may cause a fire disaster fire extinguishing, the bigger forest fire of promptly can putting out a fire to save life and property.

Claims (4)

1, a kind of machinery that is used for forest fire protection and extinguishing, the portable near-earth formula wind fire-extinguisher that fire-fighting work parts ground proximity (burning things which may cause a fire disaster) is put out a fire, little (little) h type engine h [1], clutch [2], power transmission shaft combination [3], decelerator [4], blower fan [5], wind-collecting cover [6] be mechanical connection sequentially, it is characterized in that described spray has the blower fan [5] of power transmission shaft combination [3] and a ground proximity (burning things which may cause a fire disaster) work.

2, spray according to claim 1 it is characterized in that blower fan [5] is axial-flow type, and the output wind direction blows to ground (burning things which may cause a fire disaster).

3,, it is characterized in that there is a wind-collecting cover [6] outside of blower fan [5] according to claim 1,2 described sprays.

4, lighter according to claim 1, the length that it is characterized in that power transmission shaft combination [3] is between 0.6-1.6m.