Summary of the invention
The technical problem that the technical program will solve is that existing extinguishing device not easily moves and opening speed is slow, and the expulsion pressure of foam gun can not regulate according to actual needs in real time.
In order to solve the problems of the technologies described above, the technical program provides a kind of mobile foam fire-extinguishing apparatus, comprises base plate, handrail, equipment frame, fluid reservoir, at least one compressed air cylinder, air and liquid mixer, liquid inlet electromagnetic valve, air inlet electromagnetic valve, high-pressure water pipe, wrap-up, spray gun, starting switch and controller; Be provided with four universal wheels below base plate, handrail is inclined and mounted on the edge of base plate; Equipment frame and fluid reservoir are installed on the upper face of base plate; Two compressed air cylinders are arranged in equipment frame by bracing frame;
Wrap-up comprises rolling cylinder, rolling rotating shaft, rolling support and rotation seal joint; Rolling cylinder is by rolling axis of rotation formula and level is arranged on rolling support, and rolling support is positioned at equipment frame; Rotation seal joint is arranged on the rotating shaft inlet of rolling rotating shaft spindle nose end face, and the circumferential wall of rolling rotating shaft is provided with the rotating shaft liquid outlet communicated with rotating shaft inlet; High-pressure water pipe is around on rolling cylinder, and one end of high-pressure water pipe and rotating shaft liquid outlet connect;
Spray gun comprises shower nozzle, hand-held jet pipe, spray core, pilot pin and tube tooth interface; The front end of shower nozzle is provided with round nozzle, and the internal diameter of round nozzle is less than the internal diameter of shower nozzle; The inside, front end of hand-held jet pipe is coaxially fixed with a sleeve pipe; The front end outer wall of hand-held jet pipe is provided with spiral helicine cotter way; The rear end inwall of shower nozzle is provided with pin-and-hole; Also be provided with rubber washer in pin-and-hole, and the pin cap of pilot pin is embedded in pin-and-hole; The rear end of shower nozzle is set on the front end outer wall of hand-held jet pipe, and the shank of pilot pin is embedded in cotter way, and can slide along cotter way; Spray core is made up of compressing head and connecting rod; Compressing head is rugby shape, and the centerline collineation of the major axis of compressing head and hand-held jet pipe; One end of connecting rod is fixed on compressing head, and the other end is inserted by the front end of sleeve pipe and fixes; Tube tooth interface is arranged on the rear end of hand-held jet pipe, and connects with the other end of high-pressure water pipe; The front end outer wall of hand-held jet pipe is embedded with a circle sealing ring; The outer wall of shower nozzle is provided with rotation grip fin; The outer wall in hand-held jet pipe stage casing is provided with gripping antislip cog;
The gas outlet of compressed air cylinder divides two-way to connect, and a road is connected with the gas port pipeline that is mixed into of air and liquid mixer through air inlet electromagnetic valve, and another road is connected with the air inlet pipeline at fluid reservoir top; Liquid outlet bottom fluid reservoir is connected with the mixing inlet pipeline of air and liquid mixer through liquid inlet electromagnetic valve; The foam outlet of air and liquid mixer is connected with rotation seal joint pipeline;
Controller is electrically connected with liquid inlet electromagnetic valve, air inlet electromagnetic valve and starting switch respectively.
Adopt, under base plate, universal wheel be installed, can like a cork by extinguishing device the burning things which may cause a fire disaster moved to nearby put out a fire, improve the convenience that fire-fighting efficiency and fire fighter use; Adopt starting switch to send open command to controller, then controlled to open liquid inlet electromagnetic valve and air inlet electromagnetic valve by controller, make extinguishing device possess the function of a key unlatching, effectively improve the opening speed of extinguishing device, make fire extinguishing rapider; The compressed air of compressed air cylinder is delivered to air and liquid mixer and fluid reservoir respectively, the extinguishing chemical input pressure that air and liquid mixer is obtained and compressed air input pressure roughly equal, guarantee that the foam mixing rear acquisition is more even; Adopt pilot pin and cotter way to form helical structure, the length that nozzle set is located on hand-held jet pipe rotates change, and the gap simultaneously between compressing head and round nozzle also changes thereupon, and when same traffic, expulsion pressure also changes thereupon; Adopt sleeve pipe to fix spray core, can effectively prevent the compressing head of spray core from occurring the problem of disalignment; Employing sealing ring can prevent the junction leakage from shower nozzle and hand-held jet pipe; Adopt rotation grip fin can prevent from occurring skidding in rotary nozzle process; Adopt gripping antislip cog can prevent from occurring skidding in hand-held jet pipe process; Compressing head is designed to rugby shape, smooth extinguishing fluid transfer passage can either be formed, can match with round nozzle again; Adopt rubber washer that the shank of pilot pin can be made closely to be embedded in all the time in cotter way.
As the further improvement project of the technical program, the front end that sleeve pipe is arranged on hand-held jet pipe by four blocks of side plates is inner; Four blocks of side plates are distributed between the outer wall of sleeve pipe and the inwall of hand-held jet pipe in " ten " font, and are all parallel to the center line of hand-held jet pipe; The back-end closure of sleeve pipe, the other end of connecting rod is fixed by the rear end of screw through sleeve pipe.Four blocks of side plates are adopted to be distributed between the outer wall of sleeve pipe and the inwall of hand-held jet pipe in " ten " font, can not only support sleeve pipe, but also guide effect can be played to the extinguishing fluid in hand-held jet pipe, prevent extinguishing fluid from hand-held jet pipe, forming vortex, improve jeting effect; The back-end closure of sleeve pipe is fixed with screw, can prevents high pressure from spray core being sprayed from sleeve pipe.
As the further improvement project of the technical program, four equal correspondences of universal wheel are provided with a wheel brake gear for fixing universal wheel; Wheel brake gear comprises spring pipe box, extension spring and elastic rubber strip; Extension spring is fixedly mounted in spring pipe box, and the lower end of extension spring is connected with the upper end of elastic rubber strip; Spring pipe box is vertically arranged on the below of base plate, and is positioned at the rear side of corresponding universal wheel bearing; The upper end of elastic rubber strip is positioned at spring pipe box, and it is outer and contact to earth that spring pipe box is stretched out in lower end; The middle part of elastic rubber strip and the position relative with the wheel face of universal wheel is provided with arc-shaped recess.This is adopted to take turns brake gear when fixing universal wheel, only by handrail, extinguishing device rearward need be pulled, the lower end of elastic rubber strip is tilted to universal wheel place, and suppressed by the roller of universal wheel further, pull back further and elastic rubber strip is pulled out in spring pipe box, and roller is sunk in arc-shaped recess, thus carry out temporary fixed to universal wheel, thus guarantee that in fire extinguishing procedure, extinguishing device can not be pulled movement.
As the further improvement project of the technical program, the lower end of elastic rubber strip and be provided with face of slope with the wheel face opposite side of universal wheel.Adopt face of slope that the roller of universal wheel can be facilitated to be pressed on elastic rubber strip, the dynamics rearward pulled when alleviating fixing.
As the further improvement project of the technical program, the lower end of elastic rubber strip and be provided with anti-skidding rib with the wheel face phase dorsal part of universal wheel.Occur when adopting anti-skidding rib can tilt to universal wheel place in the lower end of elastic rubber strip skidding, and the roller of universal wheel suppress elastic rubber strip and pull back elastic rubber strip is pulled out in spring pipe box time, also can prevent from further skidding, and when roller sinks in arc-shaped recess, occur skidding between elastic rubber strip and ground when can also prevent from pulling.
As the further improvement project of the technical program, columniform hybrid chamber is provided with in air and liquid mixer, be mixed into gas port to communicate with a side end face of hybrid chamber, mixing inlet communicates with the circumferential wall of hybrid chamber, and foam outlet communicates with the opposite side end face of hybrid chamber; One piece of spoiler is at least provided with in hybrid chamber; Be mixed into gas port and mix the side that inlet is positioned at spoiler, foam outlet is positioned at the opposite side of spoiler.Adopt spoiler can either form the semi-closed structure of compressed air and extinguishing chemical in the side of hybrid chamber, again can compressed air and extinguishing chemical by time improve mixed effect further.
As the further restriction scheme of the technical program, spoiler is semicircle, and has three pieces; Three pieces of spoilers are interspersed in hybrid chamber, and the center line of the plate face of spoiler and hybrid chamber is perpendicular.Adopt three pieces of semicircular spoilers be interspersed can improve the sealing effect of semi-closed structure.
As the further restriction scheme of the technical program, the center line being mixed into gas port and the center line intersecting vertical mixing inlet, and the internal diameter being mixed into gas port is 1:0.8 ~ 1:1.2 with the ratio of the internal diameter mixing inlet.Being set to 1:0.8 ~ 1:1.2 by being mixed into gas port with the internal diameter ratio mixing inlet, under the condition that extinguishing chemical is roughly the same with compressed air input pressure, more uniform foam effect can being produced.
As the further improvement project of the technical program, the spindle nose of rolling rotating shaft is provided with a driven wheel of differential; Crank bearing is also provided with in equipment frame; On crank bearing, rotary type is provided with a crank rotating shaft; One end of crank rotating shaft is provided with the drive bevel gear be meshed with driven wheel of differential, and the other end is provided with crank.Adopt crank can facilitate high-pressure water pipe rolling on rolling cylinder after being used to complete.
As the further improvement project of the technical program, on crank bearing, threaded engagement has a hold-down bolt, and the screw tip of hold-down bolt is compressed in the circumferential wall of crank rotating shaft; The screw rod that hold-down bolt does not screw is arranged with spring.Adopt hold-down bolt relatively can fix rolling cylinder when not using; Adopt spring can to unclamp hold-down bolt more laborsaving.
The beneficial effect of the technical program is: (1) adopts and install universal wheel under base plate, can like a cork by extinguishing device the burning things which may cause a fire disaster moved to nearby put out a fire, improve the convenience that fire-fighting efficiency and fire fighter use; (2) adopt starting switch to send open command to controller, then controlled to open liquid inlet electromagnetic valve and air inlet electromagnetic valve by controller, make extinguishing device possess the function of a key unlatching, effectively improve the opening speed of extinguishing device, make fire extinguishing rapider; (3) compressed air of compressed air cylinder is delivered to air and liquid mixer and fluid reservoir respectively, the extinguishing chemical input pressure that air and liquid mixer is obtained and compressed air input pressure roughly equal, guarantee that the foam mixing rear acquisition is more even; (4) adopt pilot pin and cotter way to form helical structure, the length that nozzle set is located on hand-held jet pipe rotates change, and the gap simultaneously between compressing head and round nozzle also changes thereupon, and when same traffic, expulsion pressure also changes thereupon; (5) adopt sleeve pipe to fix spray core, can effectively prevent the compressing head of spray core from occurring the problem of disalignment; (6) employing sealing ring can prevent the junction leakage from shower nozzle and hand-held jet pipe; (7) rotation grip fin is adopted can to prevent from occurring skidding in rotary nozzle process; (8) gripping antislip cog is adopted can to prevent from occurring skidding in hand-held jet pipe process; (9) compressing head is designed to rugby shape, smooth extinguishing fluid transfer passage can either be formed, can match with round nozzle again; (10) adopt rubber washer that the shank of pilot pin can be made closely to be embedded in all the time in cotter way.
Detailed description of the invention
As shown in figs. 1-7, the mobile foam fire-extinguishing apparatus of the technical program comprises: base plate 1, handrail 2, equipment frame 5, fluid reservoir 6, at least one compressed air cylinder 7, air and liquid mixer 9, liquid inlet electromagnetic valve 10, air inlet electromagnetic valve 11, high-pressure water pipe 17, wrap-up, spray gun 18, starting switch 19 and controller; Be provided with four universal wheels 3 below base plate 1, handrail 2 is inclined and mounted on the edge of base plate 1; Equipment frame 5 and fluid reservoir 6 are installed on the upper face of base plate 1; Two compressed air cylinders 7 are arranged in equipment frame 5 by bracing frame 8.
Wrap-up comprises rolling cylinder 12, rolling rotating shaft 16, rolling support 13 and rotation seal joint 15; Rolling cylinder 12 is by rolling rotating shaft 16 rotary type and level is arranged on rolling support 13, and rolling support 13 is positioned at equipment frame 5; Rotation seal joint 15 is arranged on the rotating shaft inlet of rolling rotating shaft 16 spindle nose end face, and the circumferential wall of rolling rotating shaft 16 is provided with the rotating shaft liquid outlet 26 communicated with rotating shaft inlet; High-pressure water pipe 17 is around on rolling cylinder 12, and one end of high-pressure water pipe 17 and rotating shaft liquid outlet 26 connect.
As illustrated in figs. 5-7, spray gun 18 comprises shower nozzle 34, hand-held jet pipe 42, spray core, pilot pin 38 and tube tooth interface 44; The front end of shower nozzle 34 is provided with round nozzle 32, and the internal diameter of round nozzle 32 is less than the internal diameter of shower nozzle 34; The inside, front end of hand-held jet pipe 42 is coaxially fixed with a sleeve pipe 36; The front end outer wall of hand-held jet pipe 42 is provided with spiral helicine cotter way 40; The rear end inwall of shower nozzle 34 is provided with pin-and-hole 47; Also be provided with rubber washer 46 in pin-and-hole 47, and the pin cap of pilot pin 38 is embedded in pin-and-hole 47; The rear end of shower nozzle 34 is set on the front end outer wall of hand-held jet pipe 42, and the shank of pilot pin 38 is embedded in cotter way 40, and can slide along cotter way 40; Spray core is made up of compressing head 33 and connecting rod 39; Compressing head 33 is in rugby shape, and the centerline collineation of the major axis of compressing head 33 and hand-held jet pipe 32; One end of connecting rod 39 is fixed on compressing head 33, and the other end is inserted by the front end of sleeve pipe 36 and fixes; Tube tooth interface 44 is arranged on the rear end of hand-held jet pipe 42, and connects with the other end of high-pressure water pipe 17; The front end outer wall of hand-held jet pipe 42 is embedded with a circle sealing ring 37; The outer wall of shower nozzle 34 is provided with rotation grip fin 35; The outer wall in hand-held jet pipe 32 stage casing is provided with and grips antislip cog 43.
The gas outlet of compressed air cylinder 7 divides two-way to connect, and a road is connected with the gas port pipeline that is mixed into of air and liquid mixer 9 through air inlet electromagnetic valve 11, and another road is connected with the air inlet pipeline at fluid reservoir 6 top; Liquid outlet bottom fluid reservoir 6 is connected with the mixing inlet pipeline of air and liquid mixer 2 through liquid inlet electromagnetic valve 10; The foam outlet of air and liquid mixer 2 is connected with rotation seal joint 15 pipeline; The center line being mixed into gas port and the center line intersecting vertical mixing inlet, and the internal diameter being mixed into gas port is 1:0.8 ~ 1:1.2 with the ratio of the internal diameter mixing inlet.
Controller is electrically connected with liquid inlet electromagnetic valve 10, air inlet electromagnetic valve 11 and starting switch 19 respectively; When pressing starting switch 19, controller just have received start signal, just control liquid inlet electromagnetic valve 10 and air inlet electromagnetic valve 11 open work immediately, make compressed air one tunnel enter fluid reservoir 6 to compress extinguishing chemical and enter air and liquid mixer 9, another road directly enters air and liquid mixer 9, and compressed air and extinguishing chemical rapid mixing in air and liquid mixer 9 is foamed; If desired regulate expulsion pressure, only need turn shower nozzle 34 that the spacing between round nozzle 32 and compressing head 33 is changed.
As shown in Figure 6, sleeve pipe 36 is arranged on the inside, front end of hand-held jet pipe 42 by four blocks of side plates 45; Four blocks of side plates 45 are distributed between the outer wall of sleeve pipe 36 and the inwall of hand-held jet pipe 42 in " ten " font, and are all parallel to the center line of hand-held jet pipe 42; The back-end closure of sleeve pipe 36, the other end of connecting rod 39 is fixed by the rear end of screw 41 through sleeve pipe 36.
As shown in figs. 1 and 3, four equal correspondences of universal wheel 3 are provided with a wheel brake gear 4 for fixing universal wheel 3; Wheel brake gear 4 comprises spring pipe box 26, extension spring 27 and elastic rubber strip 28; Extension spring 27 is fixedly mounted in spring pipe box 26, and the lower end of extension spring 27 is connected with the upper end of elastic rubber strip 28; Spring pipe box 26 is vertically arranged on the below of base plate 1, and is positioned at the rear side of corresponding universal wheel 3 bearing; The upper end of elastic rubber strip 28 is positioned at spring pipe box 26, and it is outer and contact to earth that spring pipe box 26 is stretched out in lower end; At the middle part of elastic rubber strip 28 and the position relative with the wheel face of universal wheel 3 is provided with arc-shaped recess 29; Face of slope 30 is provided with in the lower end of elastic rubber strip 28 and with the wheel face opposite side of universal wheel 3; Anti-skidding rib 31 is provided with in the lower end of elastic rubber strip 28 and with the wheel face phase dorsal part of universal wheel 3.
As shown in Figure 1, in air and liquid mixer 2, be provided with columniform hybrid chamber, be mixed into gas port and communicate with a side end face of hybrid chamber, mixing inlet communicates with the circumferential wall of hybrid chamber, and foam outlet communicates with the opposite side end face of hybrid chamber; Three pieces of spoilers 48 are provided with in hybrid chamber; Be mixed into gas port and mix the side that inlet is positioned at spoiler 48, foam outlet is positioned at the opposite side of spoiler 48; Spoiler 48 is semicircle, and three pieces of spoilers 48 are interspersed in hybrid chamber, and the center line of the plate face of spoiler 48 and hybrid chamber is perpendicular.
As shown in Figures 2 and 4, the spindle nose of rolling rotating shaft 16 is provided with a driven wheel of differential 14; Crank bearing 20 is also provided with in equipment frame 5; On crank bearing 20, rotary type is provided with a crank rotating shaft 24; Be provided with the drive bevel gear 25 be meshed with driven wheel of differential 14 in one end of crank rotating shaft 24, the other end is provided with crank 21.On crank bearing 20, threaded engagement has a hold-down bolt 22, and the screw tip of hold-down bolt 22 is compressed in the circumferential wall of crank rotating shaft 24; The screw rod that hold-down bolt 22 does not screw is arranged with spring 23.