CN103939336A

CN103939336A - Portable fire pump

Info

Publication number: CN103939336A
Application number: CN201410122749.3A
Authority: CN
Inventors: 余文凌
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-05-18
Filing date: 2014-05-18
Publication date: 2014-07-23
Anticipated expiration: 2034-05-18
Also published as: CN103939336B

Abstract

The invention discloses a portable fire pump. The portable fire pump is composed of a fire pump body, a gasoline engine and a support, wherein the fire pump body adopts a rotor pump; the rotor pump is composed of a pump body, a rotor, a piston, a partition piece and an eccentric shaft, and when a crankshaft of the gasoline engine drives the eccentric shaft of the rotor pump to rotate, the piston does a reciprocating motion in a radial hole of the rotor and can absorb and discharge water. The portable fire pump provided by the invention has the advantages that the volume is small, the weight is light, a person can lift the portable fire pump to a fireground, the time is saved, the rotor pump is free of water filling, water is out to quench the fire after the rotor pump is started, the portable fire pump has the strong suction capacity, the water is added after water is used up, namely the portable fire pump has a water-cutting self-recovering capacity, flow sand of the pump is large, a hydraulic head is high, the ejective water column has the large impact force, a spray sputtering area is also large, a fire behavior is powerfully controlled, and the fire is eliminated or the expansion of the fire behavior is relieved to wait for firefighters.

Description

Portable fire pump

Technical field

The present invention relates to a kind of displacement pump, particularly a kind of portable fire pump.

Background technique

The life causing because of fire and the loss of property are huge, add up according to fire department, 2006 1 to August, the whole nation is total to 159901 of breaking out of fires, dead 1052 people, injured 995 people, 51,334 ten thousand yuan of direct property damages, and, the people's fire of dying focuses mostly at house, the dead more than sixty percent is disadvantaged group, die people's fire and fire accidents mostly occurred at night, 22 was the multiple period of people's fire and fire accidents of dying up to 6 o'clock mornings, cause the reason of fire successively: because life is with accidentally fiery, violate the electric regulation of installing and using, smoking, play with fire, operate against regulations, spontaneous combustion and thunderbolt.

Fire department is reminded simultaneously.It latter 3 minutes is the best opportunity of fire extinguishing that fire occurs.

Comprehensive above-mentioned investigation, known, in three minutes, put out a fire, certainly will near the scene of a fire, have and can, for small portable fire water pump at any time, just can reach the requirement of fire extinguishing.

The patent No. 02274224.7 " Portable forest fire fighting pump ", the patent No. 00219511.9 " emergency fire pump ", the patent No. 200620079944.3 " portable fire pump ", the patent No. 200920138375.9 " and a kind of Mobile fire pump ", all provide flexibly, small-sized fire-fighting pump movably; They are made up of motor, fire water pump and frame, wherein, and fire water pump and motor direct connection; When scene of fire has a power failure, they can bring into play emergent fire extinguishing function; Be not difficult to find that above-mentioned all kinds of patents fire water pump has its common defect but carefully analyze, the 1st, fire water pump all adopts centrifugal pump, can not self-priming due to centrifugal pump, before start, must fill water to intake pipe, could water outlet after start, this just delays valuable flame extinction time; Afterwards, in the time that fire water pump is cut off the water supply, all will shut down and add water, defect is very obvious; The 2nd, owing to adding water, must be equipped with and add wetting system, as vacuum pump, sliding vane pump or tank, this has just increased overall weight, and therefore its frame is larger, heavier, mobile dumb, goes upstairs especially, walks arrow path, very inconvenient, and needs many people's operations.

The object of the invention is to: for the shortcoming of above-mentioned various trailer pumps, proposing a kind of fire water pump needn't pour water, start can water outlet, and a people that can " cutout is from continuous " after cutting off the water is exercisable portable fire pump.

In order to achieve the above object, portable fire pump of the present invention comprises fire water pump 1 and provides the petrol engine 2 of power and the support 3 of carrying fire water pump 1 and petrol engine 2 to described fire water pump 1, its special way is: described and fire water pump 1 petrol engine direct connection are rotor pumps 4, and described support 3 is by a base plate 5, two side arms 6, a portable simple framework that handle 7 forms; Described rotor pump 4 comprise with the pump housing 8 of suction port and exhaust port, be contained in the described pump housing 8 inner chambers and and its coaxial rotor 9, described rotor 9 be shaped with at least one row's radial direction through hole 10, in described radial direction through hole 10, be equipped with can be reciprocating by eccentric stiffener piston 11; The described pump housing 8 inner chambers are also equipped with coaxial cut water cover 12, on described cut water cover 12, be shaped with the cut water 13 of the zone of high pressure in the pump housing 8 and low pressure area isolation, the reciprocating eccentric shaft 14 of described drive piston 11 is made up of standard shaft section 15 and eccentric segment 16, the standard shaft section 15 of described eccentric shaft 14 and the bent axle direct connection of petrol engine 2; The eccentric segment 16 of described eccentric shaft 14 inserts in the inner sleeve of rolling bearing 17 of described piston 11 waists and is affixed with it; The axis of the standard shaft section 15 of described eccentric shaft 14 has a throw of eccentric E to the pump housing 8 inner chamber axis; The axis of the standard shaft section 15 of the axis of the eccentric segment 16 of described eccentric shaft 14 to described eccentric shaft 14 has an identical throw of eccentric E.

The cylindrical of the described rotor 9 described in technical solution of the present invention on rotor pump 4 can be fixedly mounted with a rotor cover 18, on described rotor cover 18, have the radial hole 19 that the diameter coaxial with the radial direction through hole 10 of described rotor 9 is less, the both sides of described radial hole 19 are shaped with the narrow groove 20 communicating with radial hole 19, form radial flow path.

Described cut water 13 described in technical solution of the present invention on rotor pump 4 can be a unsteady cut water 21, is provided with and discharges one-way valve 22 in described unsteady cut water 21; The width of described unsteady cut water 21 is greater than the width of radial passage on rotor cover 18.

Described in technical solution of the present invention, on rotor pump 4, float the elasticity gland 23 that the cut water 21 that floats is pressed to rotor and overlaps 18 surfaces can be housed on cut water 21.

Rotor pump 4 in the present invention is the motion principles that utilize eccentric stiffener, realize the suction function of pump, in the time that the bent axle of petrol engine drives eccentric shaft 14 to rotate, the radial direction through hole 10 that piston 11 rotates on an edge rotor 9 on one side around eccentric shaft 14 does relatively reciprocating motion, because two throw of eccentric E equate, the rotating speed of rotor 9 is the half of petrol engine rotational speed; If select the petrol engine of 1.5 horsepowers or 2 horsepowers, its maximum speed can reach per minute 5000 and turn, and at this moment, 9 of the rotors of rotor pump 4 turn 2500 and turn, and are suitable for the rotating speed of rotor pump; And the stroke of piston 11 is 4 times of throw of eccentric E; The to-and-fro motion of piston 11 produces volume-variation, sucks liquid and discharges liquid from discharge side again, constantly circulation from suction chamber; Due to the obstruct of cut water 13 on cut water cover 12, make to produce pressure difference between discharge side and suction chamber; The displacement pump principle of this volume-variation, hydraulic loss and volumetric loss are all little, efficiency is very high, piston 11 is double-action work, the rotor liquor charging twice that often rotates a circle, under petrol engine runs up, the steady no pulse of liquid stream output, vibrate little, noise is low.

Separation tongue gap sealing is the key structure that is related to fire water pump head pressure size, and for this reason, the present invention has taked following measures, improves sealing effect.

The present invention utilizes the feature of piston " short stroke, high frequency ", although its reciprocal time is very high, the flow of carrying is each time little, and therefore the diameter of the radial hole 19 of rotor cover 18 can dwindle; In addition, piston each inhale, its unit time sucks in row's cycle, discharge amount is also also unequal, piston is discharge amount maximum in the time of 90 degree position, piston is in the time of two limit positions, discharge capacity minimum, so the radial passage of the rotor cover 18 in the time of piston limit position can narrow down to into narrow groove 20, forms radial flow path, can increase like this sealing area, improve sealing effect.

In addition, in the present invention, adopt the structure of cut water 21 of floating, utilize elasticity gland 23 cut water 21 that will float to press to rotor and overlap 18 surfaces, and by threaded adjusting, making the gap of sealing surface be optimum value, has reduced backflow, has improved head pressure.

Float and be provided with that to discharge one-way valve 22 be while moving in the confined area of cut water 21 of floating for fear of piston 11 and produce vexed car phenomenon in cut water 21, when piston 11 enters behind the confined area of cut water width, when piston moves on discharge opeing, liquid, through discharging one-way valve and small channel to discharge side discharge opeing, is eliminated the vexed car phenomenon of pump.

Good effect of the present invention is: the 1st, and the volume of this portable fire pump is little, lightweight, and single can mentioning delivered to the scene of a fire, gains time; The 2nd, behind scene, rotor pump needn't be poured water, and start can be put out a fire in water outlet; 3 volume type rotor pumps have very strong suction capacity, even if water does not connect midway, needn't shut down, and in bucket, add after level, add water on one side, get final product water outlet on one side, have " runback of cutting off the water supply " ability; The 4th, rotor pump has plunger pump small flow, high-lift feature, owing to adopting multinomial measure to improve cut water sealing effect, makes the water column of ejection have very large impact force, and little fire is gone out at once, and big fire is controlled effectively, alleviates the intensity of a fire and stretches.

Brief description of the drawings

Fig. 1 is the structural drawing of facing of portable fire pump.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the plan view of Fig. 1.

Fig. 4 is the structural drawing of portable support.

Fig. 5 is the left view of Fig. 4.

Fig. 6 is the plan view of Fig. 4.

Fig. 7 is portable fire pump rotor pump structure figure.

Fig. 8 is the vertical view cutaway drawing of Fig. 7.

Fig. 9 is the cut away left side view of Fig. 7.

Figure 10 is the radial hole 19 on rotor cover 18 and the shape figure that squeezes groove 20.

Embodiment

Fig. 1 is the structural drawing of facing of portable fire pump, and Fig. 2 is the left view of Fig. 1, and Fig. 3 is the plan view of Fig. 1.Comprise fire water pump 1 and provide the petrol engine 2 of power and the support 3 of carrying fire water pump 1 and petrol engine 2 to described fire water pump 1, rotor pump as fire water pump is affixed by the seam of hitch 29 and petrol engine, the bent axle of petrol engine and rotor pump eccentric shaft direct connection, also have fuel tank 24 and flywheel protective cover 25 on petrol engine.

Fig. 4 is the structural drawing of portable support, and Fig. 5 is the left view of Fig. 4, and the plan view that Fig. 6 is Fig. 4 shows the simple in structure, lightweight of support in figure.

Fig. 7 is portable fire pump rotor pump structure figure, and Fig. 8 is the vertical view cutaway drawing of Fig. 7, and Fig. 9 is the cut away left side view of Fig. 7.In figure, show that rotor pump 4 comprises the pump housing 8 with suction port 26 and exhaust port 27; In the pump housing 8, be equipped with coaxial with it and be bearing in two rotors 9 on rolling bearing 28, the reciprocating piston 11 of energy is housed in the radial direction through hole 10 of rotor 9; The pump housing 8 inner chambers are also equipped with coaxial cut water cover 12, are shaped with the cut water 13 of the zone of high pressure in the pump housing 8 and low pressure area isolation on cut water cover 12; Drive the reciprocating eccentric shaft 14 of piston 11 to be formed by standard shaft section 15 and eccentric segment 16, the standard shaft section 15 of eccentric shaft 14 and the bent axle direct connection of petrol engine 2; The eccentric segment 16 of eccentric shaft 14 inserts in the inner sleeve of rolling bearing 17 of piston 11 waists and is affixed with it; The axis of the standard shaft section 15 of eccentric shaft 14 has a throw of eccentric E to the pump housing 8 inner chamber axis; The axis of the standard shaft section 15 of the axis of the eccentric segment 16 of eccentric shaft 14 to eccentric shaft 14 has an identical throw of eccentric E.

Claims

1. a portable fire pump, comprise fire water pump (1) and provide the petrol engine (2) of power and the support (3) of carrying fire water pump (1) and petrol engine (2) to described fire water pump (1), it is characterized in that: described and fire water pump (1) petrol engine direct connection is rotor pump (4), the portable simple framework that described support (3) is made up of a base plate (5), two side arms (6), a handle (7); Described rotor pump (4) comprise with the pump housing (8) of suction port and exhaust port, be contained in the described pump housing (8) inner chamber and and its coaxial rotor (9), described rotor (9) be shaped with at least one row's radial direction through hole (10), the piston (11) reciprocating by eccentric stiffener energy is housed in described radial direction through hole (10); The described pump housing (8) inner chamber is also equipped with coaxial cut water cover (12), on described cut water cover (12), be shaped with the cut water (13) of the zone of high pressure in the pump housing (8) and low pressure area isolation, the reciprocating eccentric shaft (14) of described drive piston (11) is made up of standard shaft section (15) and eccentric segment (16), the standard shaft section (15) of described eccentric shaft (14) and the bent axle direct connection of petrol engine (2); The eccentric segment (16) of described eccentric shaft (14) inserts in the inner sleeve of rolling bearing (17) of described piston (11) waist and is affixed with it; The axis of the standard shaft section (15) of described eccentric shaft (14) has a throw of eccentric E to the pump housing (8) inner chamber axis; The axis of the standard shaft section (15) of the axis of the eccentric segment (16) of described eccentric shaft (14) to described eccentric shaft (14) has an identical throw of eccentric E.

2. portable fire pump according to claim 1, it is characterized in that: the cylindrical of the described rotor (9) on described rotor pump (4) is fixedly mounted with a rotor cover (18), on described rotor cover (18), have the radial hole (19) that the diameter coaxial with the radial direction through hole (10) of described rotor (9) is less, the narrow groove (20) that the both sides of described radial hole (19) are shaped with and radial hole (19) communicates, forms radial flow path.

3. portable fire pump according to claim 1, it is characterized in that: the described cut water (13) on described rotor pump (4) is a unsteady cut water (21), is provided with and discharges one-way valve (22) in described unsteady cut water (21); The width of described unsteady cut water (21) is greater than the width of the upper radial passage of rotor cover (18).

4. portable fire pump according to claim 3, is characterized in that: on the upper cut water (21) that floats of described rotor pump (4), the elasticity gland (23) that the cut water (21) that floats is pressed to rotor cover (18) surface is housed.