CN103480521A

CN103480521A - Multifunctional spray gun

Info

Publication number: CN103480521A
Application number: CN201310444490.XA
Authority: CN
Inventors: 楼斌
Original assignee: NINGBO LIS INDUSTRIAL Co Ltd
Current assignee: NINGBO LIS INDUSTRIAL Co Ltd
Priority date: 2013-09-26
Filing date: 2013-09-26
Publication date: 2014-01-01
Anticipated expiration: 2033-09-26
Also published as: CN103480521B

Abstract

The invention provides a multifunctional spray gun, belongs to the technical field of spray guns, and solves the technical problems that in the prior art, the spray gun is only provided with one material tank, spraying efficiency is low, and application range is narrow. The multifunctional spray gun comprises a body with a gun body and a gun handle. Coaxial airflow caps of a nozzle are arranged at the head of the gun body, amplitude modulation holes and atomization holes are arranged on the airflow caps, a coating channel and a pressure channel are arranged in the gun body, the coating channel is communicated with the nozzle, the pressure channel is communicated with the amplitude modulation holes and the atomization holes, a first mounting hole and a second mounting hole used for mounting the material tank are respectively arranged at an upper end and a lower end of the gun body, the first mounting hole and the second mounting hole are communicated with the coating channel, an airflow passage is arranged on one side of the first mounting hole, the airflow passage is communicated with the exterior of the gun body and is provided with an amplitude modulation valve, one end of the airflow passage is communicated with the amplitude modulation holes and the atomization holes, and the other end of the airflow passage is communicated with the pressure channel. Since the application range is enlarged, the multifunctional spray gun is wider in application range and spraying efficiency can be improved.

Description

A kind of multifunction spray gun

Technical field

The invention belongs to the lance technology field, relate to a kind of multifunction spray gun.

Background technology

Spray gun is a kind of comparatively common Spray painting tool in daily life, its scope of application is quite wide, instrument with spray gun as spray paint or coating, convenient and labor-saving, spray gun kind in the market is more, according to the feed mode, is broadly divided into three kinds of hydrocone type, gravity type and pressure types, and this is wherein common with the air gun of hydrocone type, its use is the most extensive.

Which kind of spray gun no matter, its principle is that the bottom of spray gun is with batch can, compressed air is in spray tip high velocity stream mistake, produce parital vacuum on every side, by coating inlet nozzle in batch can and be atomized into coating cloud and evenly be sprayed on body surface, in order to strengthen the effect of spraying, this spray gun has often been installed air cap in the rifle head part, have the hole of using with atomization and amplitude modulation on air cap, so strengthened spraying effect.Existing spray gun mainly comprises the batch can that rifle body and logical charge tube are connected with the rifle body, the installation site of batch can is divided into two kinds, a kind of bottom that is arranged on the rifle body, another kind is arranged on the top of rifle body, for example, the patent of invention that application publication number is CN102601007 discloses a kind of novel spray gun, comprise batch can and rifle body, batch can is arranged on the top of rifle body, and for example, the patent of invention that application publication number is CN102407192A discloses a kind of mist adjustment mechanism for spray gun, comprise batch can and rifle body, batch can is arranged on the bottom of rifle body, the batch can installation site of these two kinds of spray guns is the most general in existing spray gun, no matter batch can is arranged on bottom or the top of rifle body, advantage is separately all arranged.

But along with the development of spraying technology, because user demand improves constantly, and also there is certain defect in use in the spray gun of this unidirectional installation batch can, and this spray gun can only use a kind of coating, so its scope of application is restricted.For example, some coating is used a batch can splendid attire, the volume of batch can is limited, the coating of splendid attire is the words of spraying not, spraying work just can not disposablely complete, need to again add coating, and this process of adding coating can make the coating of successively spraying occur the problems such as the junction vestige is more obvious making spraying effect greatly reduce, in addition, the occasion of some spraying need to mix two kinds of different colours or coating of different nature to be sprayed, and due to some coating be exposed in air chemical reaction can occur or in air, mix after thereby chemical reaction occurs causes its character to change, therefore this coating must be mixed in the space of sealing, perhaps two kinds of different coating are when first the mixing, its undercompounding, inhomogeneous, the coating that causes being sprayed on body surface is also inhomogeneous, spraying effect is poor, these problems cause the scope of application of the spray gun of pure tank to be restricted, the scope of application is narrow, use face is too single, spray efficiency is lower.

Summary of the invention

The objective of the invention is to have the problems referred to above for existing technology, proposed that a kind of scope of application is wide, the more much higher function spray gun of spray efficiency.

Purpose of the present invention can realize by following technical proposal: a kind of multifunction spray gun, comprise the rifle body with the body of a gun and pikestaff, the body of a gun is by the rifle head, gun breech and rifle waist form, the rifle head is provided with coaxial nozzle and air-flow cap, offer amplitude modulation hole and orifice on the air-flow cap, offer the coating passage in the rifle head, offer pressure channel in the rifle waist, the coating passage communicates with nozzle, pressure channel and amplitude modulation sky, orifice communicates, the upper and lower two ends of rifle head offer respectively the first installing hole and the second installing hole for batch can is installed, the first installing hole all communicates with the coating passage with the second installing hole, the first installing hole side opening is provided with flow channel, flow channel and the body of a gun be outside to be communicated with and connectivity part is provided with amplitude modulation and cuts down, one end of described flow channel and amplitude modulation hole, orifice communicates, the other end communicates with pressure channel.

In above-mentioned a kind of multifunction spray gun, flow channel comprise the first air flue that axially is opened in the adjacent side of the first installing hole and be opened in the first installing hole rear side and with the second air flue of the first air flue vertical connection, the first air flue communicates with amplitude modulation hole, orifice, the second air flue and pressure channel vertical connection.

In above-mentioned a kind of multifunction spray gun, described the first air flue and the second air flue are in same plane, and described pressure channel is positioned at the top of the second air flue.

In above-mentioned a kind of multifunction spray gun, described the first installing hole is obliquely installed to gun breech by the rifle head, and the rear end of the first installing hole is tiltedly installed with bracing frame.

In above-mentioned a kind of multifunction spray gun, the rifle waist is provided with trigger, the trigger top is two installing plates that symmetrical parallel arranges, the two ends up and down of installing plate offer respectively the first bar hole and the second bar hole, the first fixed axis is connected the installing plate upper end through the first bar hole with bracing frame, the second fixed axis is connected the installing plate lower end through the second bar hole with the body of a gun.

In above-mentioned a kind of multifunction spray gun, the front end of the first bar hole and the second bar hole distance is less than the rear end distance of the first bar hole and the second bar hole.

In above-mentioned a kind of multifunction spray gun, gun breech offers the first pressure storehouse communicated with pressure channel, axially be provided with press rods between gun breech and nozzle, press rods is passed trigger and is flexibly connected with trigger, be fixedly installed first piston on press rods, the rear end of first piston is stretched in the first pressure storehouse.

In above-mentioned a kind of multifunction spray gun, the below in described the first pressure storehouse is opened and is offered successively the second pressure storehouse and the 3rd pressure storehouse, the second pressure storehouse communicates with the first pressure storehouse, the lower end of trigger is provided with the section of pulling, the front end that is provided with elastic force bar and elastic force bar in the second pressure storehouse and the 3rd pressure storehouse is resisted against in the section of pulling, be provided with the second piston between the second pressure storehouse and the 3rd pressure storehouse, move in sealing and the two states that communicates with the second piston with the 3rd pressure storehouse in the second pressure storehouse.

In above-mentioned a kind of multifunction spray gun, offer the first inlet channel and the second inlet channel in described pikestaff, the first inlet channel communicates with the first pressure storehouse and the second pressure storehouse respectively, the 3rd pressure storehouse communicates with the second inlet channel, described the second inlet channel with the movement of the second piston with the second pressure storehouse in sealing and the two states that communicates.

Compared with prior art, the present invention has following beneficial effect:

1, offer two batch can installing holes that communicate with the coating passage at the upper and lower side of the body of a gun simultaneously, make two batch cans of portability of rifle body, not only can be used in the situation that coating is less or coating type is single, also can mix and use in the space of sealing for two kinds of different colours or material of different nature, and in the situation that two kinds of coating are pre-mixed, if the first mixing of coating is inhomogeneous, when two kinds of coating arrive spray gun inside simultaneously, due to compressed-air actuated impulsive force, mixing inhomogeneous coating also can uniformly spray at body surface, its scope of application is enlarged, use face is wider, spray efficiency is improved,

2, secondly, the trigger of spray gun is changed into the trigger of 2 connections by original traditional trigger, due to two batch cans being installed, the pressure needed in spray gun is original twice, therefore can cause the larger phenomenon of resistance when using spray gun, and the trigger of 2 connections makes spray gun, required dynamics is less, more laborsaving in use.

The accompanying drawing explanation

Fig. 1 is the whole generalized section of a kind of multifunction spray gun of the present invention.

Fig. 2 is the assembling generalized section of a kind of multifunction spray gun of the present invention.

Fig. 3 is the face upwarding section of flow channel in a kind of multifunction spray gun of the present invention.

Fig. 4 is the partial enlarged drawing of gun breech part in a kind of multifunction spray gun of the present invention.

Fig. 5 is the side schematic view of trigger in a kind of multifunction spray gun of the present invention.

Fig. 6 is the front schematic view of trigger in a kind of multifunction spray gun of the present invention.

In figure, 10, the body of a gun; 100, rifle head; 110, nozzle; 120, air-flow cap; 121, amplitude modulation hole; 122, orifice; 130, coating passage; 140, the first installing hole; 141, the first charging hole; 150, the second installing hole; 151, the second charging hole; 160, flow channel; 161, the first air flue; 162, the second air flue; 170, amplitude modulation is cut down; 200, rifle waist; 210, pressure channel; 220, bracing frame; 230, the first fixed axis; 240, the second fixed axis; 300, gun breech; 310, press rods; 311, first piston; 312, the first pressure storehouse; 313, the first spring; 320, elastic force bar; 321, the second pressure storehouse; 322, the second spring; 323, fixed head; 330, the 3rd pressure storehouse; 331, the second piston; 332, the 3rd spring; 333, spring support; 400, trigger; 410, pull section; 411, curved portions; 420, installing plate; 421, the first bar hole; 422, the second bar hole; 50, pikestaff; 510, the first inlet channel; 520, the second inlet channel; 60, material feeding jar; 70, blanking tank.

The specific embodiment

Be below specific embodiments of the invention by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.

As shown in Figure 1, a kind of multifunction spray gun of the present invention, comprise the rifle body be comprised of the body of a gun 10 and pikestaff 50, and the body of a gun 10 is comprised of rifle head 100, gun breech 300 and rifle waist 200, and rifle waist 200 is connected with trigger 400.

Rifle head 100 places are provided with nozzle 110, air-flow cap 120 coaxial with nozzle 110 and that be threaded with rifle head 100 is installed in the periphery of nozzle 110, in order to increase spraying effect, offer amplitude modulation hole 121 and orifice 122 in air-flow cap 120, the rear end that is positioned at nozzle 110 in rifle head 100 offers coating passage 130, rifle waist 200 parts offer the pressure channel 210 with exterior, coating passage 130 communicates with nozzle 110, pressure channel 210 and amplitude modulation hole 121, orifice 122 communicates, the rifle head offers respectively the first installing hole 140 and the second installing hole 150 for different batch cans are installed in two ends Shang Xia 100, offer the first charging hole 141 in the first installing hole 140 and communicate with coating passage 130, offering the second charging hole 151 in the second installing hole 150 communicates with coating passage 130 simultaneously, the first charging 141 hole side openings are provided with flow channel 160, flow channel 160 is around the first charging hole 141 and mistake, flow channel 160 offer the amplitude modulation mouth and with rifle head 100 exterior, amplitude modulation mouth place is provided with amplitude modulation and cuts down 170, one end of flow channel 160 and amplitude modulation hole 121, orifice 122 communicates, the other end communicates with pressure channel 210,

As shown in Figure 2, the first installing hole 140 and the second installing hole 150 are connected respectively material feeding jar 60 and the blanking tank 70 of difformity splendid attire different materials or same material, when cocking 400, under rifle body air pressure inside compression, material feeding jar 60 enters in coating passage 130 and mixes by the first charging hole 141 and the second charging hole 151 respectively with the coating in blanking tank 70, and then is forced out nozzle 110 under the compressed air pressure in coating passage 130.

The upper and lower side of rifle head 100 is offered two batch can installing holes that communicate with coating passage 130 simultaneously, and connection is loaded with the batch can of different material, make two batch cans of portability of rifle body, not only can be used in the situation that coating is less or coating type is single, also can mix and use in the space of sealing for two kinds of different colours or material of different nature, and in the situation that two kinds of coating are pre-mixed, if the first mixing of coating is inhomogeneous, when two kinds of coating arrive spray gun inside simultaneously, due to compressed-air actuated impulsive force, mixing inhomogeneous coating also can uniformly spray at body surface, its scope of application is enlarged, use face is wider, spray efficiency is improved.

As shown in Figure 3, flow channel 160 comprises the first air flue 161 that axially is opened in the first charging hole 141 adjacent sides and is opened in the first charging hole 141 rear sides the second air flue 162 also, the second air flue 162 be positioned at rifle head 100 and rifle waist 200 junction and with rifle head 100, rifle waist 200 is vertical state, one end sealing of the second air flue 162, the other end and exterior and form above-mentioned amplitude modulation mouth, the inboard place of amplitude modulation mouth the first air flue 161 communicates with the second air flue 162, cut down 170 by the amplitude modulation that is adjusted in the installation of amplitude modulation mouth, can regulate the air mass flow size that the second air flue 162 leads to the first air flue 161, the first air flue 161 is walked around the first charging hole and amplitude modulation hole 121, orifice 122 communicates, the second air flue 162 and pressure channel 210 vertical connections, because pressure channel 210 axially is opened in rifle waist 200 inside, the second air flue 162 is vertical with pressure channel 210, the compressed air stream entered in the second air flue 162 by pressure channel 210 can form turnover for the first time, the first air flue 161 is vertical with the second air flue 162, the compressed air stream entered in the first air flue 161 by the second air flue 162 can form turnover for the second time, finally respectively by amplitude modulation hole 121 and orifice 122 ejections.

Because the upper and lower side at rifle head 100 has been offered the first installing hole 140 and the second installing hole 150 that connects batch can simultaneously, make the runner of compressed air stream of traditional rifle body inside occupied, compressed air in the pressure channel 210 that causes communicating with the interior amplitude modulation of air-flow cap 120 hole 121 and orifice 122 can't be straight enter in amplitude modulation hole 121 and orifice 122, and offer the first air flue 161 in the adjacent side that is positioned at the first charging hole 141, and offer the second air flue 162 communicated with the first air flue 161 in the rear end of the first charging hole 141, compressed air in pressure channel 210 is successively through the second air flue 162, the first air flue 161, not only still kept the function of original amplitude modulation and atomization, and compressed air is through twice break-in, compressed air is relative with the frictional force of rifle body to be weakened, therefore compressed air also reduces the wearing and tearing of rifle body, compressed air enters the second air flue 162 when interior, because the second air flue 162 is vertical with pressure channel 210, the pressure at right angle maximum be subject in the second air flue 162, but then be dispersed in the first air flue 161, and air flue and inwall and the position of the first charging hole far away, therefore also less to the effect of attrition of charging hole, because the distance of the first air flue 161 is shorter, compressed air is faster by the first air flue 161, more traditional linear pattern and longer air duct, the fraction time that is compressed air in the first air flue 161 is shorter, the wearing and tearing of compressed air and the first air flue 161 inwalls are relative reducing also, therefore the frictional force of whole rifle head 100 parts in the time of the compressed air process is all less, effectively reduce the degree of wear of rifle head 100 parts, make be extended the service life of whole rifle body.

Further, compressed air in pressure channel 210 need be through on the basis turned to for twice, the first air flue 161 and the second air flue 162 are in same plane, pressure channel 210 is positioned at the top of the second air flue 162, because the breach of pressure channel 210 to second air flues 162 is less, and the space of the second air flue 162 is larger, and pressure channel 210 is higher than the second air flue 162, therefore the compressed air entered in the second air flue 162 by pressure channel 210 again forms and turns to, less in windage in the second air flue 162, the inwall extent of damage of the second air flue 162 is lower.

As depicted in figs. 1 and 2, the top that rifle waist 200 is positioned at pressure channel 210 is provided with a bracing frame 220, the shape of bracing frame 220 roughly is " U " type and tilts to gun breech 300, bracing frame 220 has the top that a long limit and a minor face and long limit are positioned at minor face, long limit all is connected with rifle waist 200 with minor face, and the top inversion of material feeding jar 60 is arranged in the first installing hole 140 and the tank skin of batch can rests on bracing frame 220.

Because the upper and lower side at rifle head 100 has been offered respectively the first installing hole 140 and the second installing hole 150, install the nose heave amount of rifle of the pure tank spray gun that the weight ratio of rifle head 100 is traditional after batch can 60 and want large, can be more painstaking while using spray gun, the first installing hole 140 is receded and offers, material feeding jar 60 be arranged on the first installing hole 140 when interior weight to 300 transfers of gun breech, and the lower end of gun breech 300 is connected with pikestaff 50, therefore the weight of whole rifle head 100 is disperseed to gun breech 300, the staff is comparatively comfortable in use, spray gun is in convenient the use, labour intensity is also lower, because the first installing hole 140 tilts to gun breech 300, when material feeding jar 60 is arranged on the first installing hole 140 when interior, material feeding jar 60 also tilts to gun breech 300, and the bracing frame 220 that rifle waist 200 arranges just makes material feeding jar 60 can rest on bracing frame 220, make material feeding jar 60 be unlikely to unsettled, therefore increased the soundness of material feeding jar 60.

As Fig. 1, shown in Fig. 2, rifle waist 200 is provided with trigger 400, the upper end of trigger 400 is connected with the bottom of rifle waist 200 with bracing frame 220 respectively, axially be provided with press rods 310 and press rods 310 front ends stretch in rifle head 100 at gun breech 300, rear end enters into nozzle 110 inside, press rods 310 is passed trigger 400 and is attached thereto, be fixedly connected with first piston 311 on press rods 310, gun breech 300 offers the first pressure storehouse 312, the rear end of first piston 311 is stretched in the first pressure storehouse 312, between the rear end of first piston 311 and the first pressure storehouse 312 inwalls, the first spring 313 is installed, in the lower shaft of press rods 310 to being provided with elastic force bar 320, the first 312 bottom, pressure storehouse offers the second pressure storehouse 321, offer the first inlet channel 510 and the second inlet channel 520 in pikestaff 50, the first inlet channel 510 communicates with the first pressure storehouse 312 and the second pressure storehouse 321, the second 321 rear end, pressure storehouse offers the 3rd pressure storehouse 330 that internal diameter is greater than the second pressure storehouse 321, the 3rd pressure storehouse 330 communicates with the second inlet channel 520, be provided with the second piston 331 in the 3rd pressure storehouse 330, elastic force bar 320 stretches in the second pressure storehouse 321 and the 3rd pressure storehouse 330, be positioned on the elastic force bar 320 in the second pressure storehouse 321 and be provided with a fixed head 323, the two ends that the second spring 322 and the second spring 322 are installed on elastic force bar 320 are resisted against respectively the front end of fixed head 323 and the second piston 331, the rear end that the 3rd spring 332 and the 3rd spring 332 are installed on the second piston 331 is resisted against on the spring support 333 of the 3rd pressure storehouse 330 interior settings, the elastic force of the 3rd spring 332 is greater than the elastic force of the second spring 322, the elastic force of the 3rd spring 332 makes the front end of the second piston 331 be against the Hatch Opening place in the second pressure storehouse 321 and the 3rd pressure storehouse 330 and the second pressure storehouse 321 and the 3rd pressure storehouse 330 are separated, therefore between the second inlet channel 520 and the first inlet channel 510 in closed state.

As Fig. 4, shown in Fig. 5, the lower end of trigger 400 is the section of pulling 410, trigger 400 upper ends are two installing plates 420 that symmetrical parallel arranges, the two ends up and down of installing plate 420 offer respectively the first bar hole 421 and the second bar hole 422, the first bar hole 421 and the second bar hole 422 are the splayed setting to the back-end by front end, the rear end of the first bar hole 421 is inclined upwardly, the rear end of the second bar hole 422 is downward-sloping, therefore the front end of the first bar hole 421 and the second bar hole 422 distance is less than the rear end distance of the first bar hole 421 and the second bar hole 422, the first fixed axis 230 is installed in the first bar hole 421 and installing plate 420 upper ends are connected with bracing frame 220, the second fixed axis 240 is installed in the second bar hole 422 and installing plate 420 lower ends are connected with rifle waist 200, trigger 400 is bent to form a curved portions 411 backward with the junction of press rods 310.

Because gun breech 300 has been offered the second pressure storehouse 321 and the 3rd pressure storehouse 330, be provided with the second piston 331 and the second pressure storehouse 321 and the 3rd pressure storehouse 330 are separated in the 3rd pressure storehouse 330, when cocking 400 first, the second spring 322 is at first compressed, the curved portions 411 of trigger 400 is resisted against on the front end face of first piston 311, air in inlet channel is compressed and then successively by the second pressure storehouse 321, the first pressure storehouse 312 enters in pressure channel 210, finally by amplitude modulation hole 121 and orifice 122, sprayed, this cocking 400, for detection of the compressed air in whole rifle body, flow whether unobstructed or for debugging the flow of rifle body compressed air, so before each sprayed coating, all can do successively and detect the circulation of air in the rifle body, prevent in the coating ejection, because not circulating, compressed air do not cause carrying out amplitude modulation and atomization to coating, the waste of coating and the inconvenience caused to spraying have been prevented, environmental protection more, if continue cocking 400, along with moving backward and drive press rods 310, trigger 400 moves backward, the front end of press rods 310 is in coating passage 130 and the interior axially-movable of nozzle 110, make coating passage 130 and outside air pressure repeatedly produce draught head, coating is sucked outside coating passage 130 and then jetting nozzle 110 by batch can, and now elastic force bar 320 moves backward, make the second piston 331 open, air inflow in whole rifle body increases, first piston 311 is compressed the air in the first pressure storehouse 312 repeatedly, the second piston 331 is compressed the air in the second pressure storehouse 321 and the 3rd pressure storehouse 330 repeatedly, increased compressed-air actuated pressure, flow and flow velocity, make the better effects if of amplitude modulation and atomization.

Further, due to upper and lower two batch cans being installed at rifle head 100, entering coating in coating passage 130, to compare the spray gun of single batch can more, therefore resistance during cocking 400 is larger, and trigger 400 and being connected of rifle waist 200 are increased to two, after cocking 400 first, while continuing cocking 400, first fixed axis 230 of trigger 400 fulcrums during by cocking 400 first is converted to the second fixed axis 240, and the distance between the second fixed axis 240 and elastic force bar 320 is shorter, on mechanics, the distance of fulcrum and stress point is shorter, the power of required output is less, therefore when spraying paint, while spraying paint, cocking 400 can be lighter, flexibly.

Show that by above embodiment operation principle of the present invention is: at material feeding jar 60 blanking tanks 70, be arranged on respectively the first installing hole 140 and the second installing hole 150 when interior, under original state, elastic force due to the second spring 322 and the 3rd spring 332, elastic force bar 320 front ends are resisted against in the section that pulls 410 of trigger 400, the first fixed axis 230 is positioned at the front end of trigger 400 bar shaped the first installing holes 140, the second fixed axis 240 is positioned at the rear end of bar shaped the second installing hole 150, and now cocking 400 is divided into two steps;

Step 1: first cocking 400, under the effect of power, the relative position of the first bar hole 421 and the first fixed axis 230 is fixed, it is 50 close as fulcrum to pikestaff that trigger 400 be take the first fixed axis 230, the second bar hole 422 rear ends gradually away from the second fixed axis 240 while the bar hole front end is close to the second fixed axis 240 gradually, when the curved portions 411 of trigger 400 is resisted against the front end face of first piston 311, complete pulling for the first time of trigger 400, now the second fixed axis 240 is positioned at the front end of the second bar hole 422.In this process, remain unimpeded between the first inlet channel 510 and pressure channel 210, under the effect of elastic force bar 320, at first the second spring 322 compresses, air in the first inlet channel 510 are compressed and successively to the second pressure storehouse 321, the first pressure storehouse 312 is interior flows, and then in feed pressure passage 210, finally by amplitude modulation hole 121, orifice 122 ejections, step 1 can repeat, and this step repeats to detect whether spraying from amplitude modulation hole 121 and orifice 122 of spray gun compressed air, judge with this whether amplitude modulation hole 121 and orifice 122 stop up, also can cut down 170 pressure of regulating amplitude modulation and atomization required air by amplitude modulation, flow and flow velocity, thereby obtain the amplitude modulation effect needed.

Step 2: on the basis of step 1, continue cocking 400, because the second fixed axis 240 after step 1 is positioned at the front end of the second bar hole 422, the curved portions 411 of trigger 400 is resisted against on the front end face of first piston 311, form the application point of a power at the curved portions 411 of trigger 400 and the front end face of first piston 311, make the fulcrum of trigger 400 be converted to the second fixed axis 240 by the first original fixed axis 230, during cocking 400, the relative position of the second fixed axis 240 and the second bar hole 422 is fixed, and the first bar hole 421 moves forward, last the first fixed axis 230 is positioned at the rear end of the first bar hole 421, now step 2 completes.In this process, elastic force bar 320 drives the second piston 331 and moves backward, make the second pressure storehouse 321 and the 3rd pressure storehouse 330 in open state, the second inlet channel 520 communicates with the first inlet channel 510, air merges in the intersection of the second inlet channel 520 and the first inlet channel 510, and be subject to successively the second piston 331, compressing in pressure channel 210 of first piston 311, finally by amplitude modulation hole 121 and orifice 122 ejections, in the compressed-air actuated process of first piston 311, piston driving press rods 310 is in coating passage 130 and the interior axially-movable of nozzle 110, and constantly poor at coating passage 130 and the interior generation inner and outer air pressure of nozzle 110, material feeding jar 60 constantly is sucked in coating passage 130 with the coating in blanking tank 70 under the effect of draught head, finally by outside air pressure jetting nozzle 110.

Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.

Claims

1. a multifunction spray gun, the rifle body that comprises there is the body of a gun (10) and pikestaff (50), the body of a gun (10) is by rifle head (100), gun breech (300) and rifle waist (200) form, rifle head (100) is provided with coaxial nozzle (110) and air-flow cap (120), offer amplitude modulation hole (121) and orifice (122) on air-flow cap (120), offer coating passage (130) in rifle head (100), offer pressure channel (210) in rifle waist (200), coating passage (130) communicates with nozzle (110), pressure channel (210) and amplitude modulation hole (121), orifice (122) communicates, it is characterized in that: the upper and lower two ends of rifle head (100) offer respectively the first installing hole (140) and the second installing hole (150) for batch can is installed, the first installing hole (140) all communicates with coating passage (130) with the second installing hole (150), the first installing hole (140) side opening is provided with flow channel (160), flow channel (160) and the body of a gun (10) be outside to be communicated with and connectivity part is provided with amplitude modulation and cuts down (170), one end of flow channel (160) and amplitude modulation hole (121), orifice (122) communicates, the other end communicates with pressure channel (210).

2. a kind of multifunction spray gun according to claim 1, it is characterized in that: flow channel (160) comprise the first air flue (161) that axially is opened in the adjacent side of the first installing hole (140) and be opened in the first installing hole (140) rear side and with second air flue (162) of the first air flue (161) vertical connection, the first air flue (161) communicates with amplitude modulation hole (121), orifice (122), the second air flue (162) and pressure channel (210) vertical connection.

3. a kind of multifunction spray gun according to claim 2 is characterized in that: described the first air flue (161) is with the second air flue (162) in same plane, and described pressure channel (210) is positioned at the top of the second air flue (162).

4. according to claim 1 or 2 or 3 described a kind of multifunction spray guns, it is characterized in that: described the first installing hole (140) is obliquely installed to gun breech (300) by rifle head (100), and the rear end of the first installing hole (140) is tiltedly installed with bracing frame (220).

5. a kind of multifunction spray gun according to claim 4, it is characterized in that: rifle waist (200) is provided with trigger (400), trigger (400) top is two installing plates (420) that symmetrical parallel arranges, the two ends up and down of installing plate (420) offer respectively the first bar hole (421) and the second bar hole (422), the first fixed axis (230) is connected installing plate (420) upper end through the first bar hole (421) with bracing frame (220), the second fixed axis (240) is connected installing plate (420) lower end through the second bar hole (422) with the body of a gun (10).

6. a kind of multifunction spray gun according to claim 5 is characterized in that: the front end distance of the first bar hole (421) and the second bar hole (422) is less than the rear end distance of the first bar hole (421) and the second bar hole (422).

7. a kind of multifunction spray gun according to claim 6, it is characterized in that: gun breech (300) offers the first pressure storehouse (312) communicated with pressure channel (210), axially be provided with press rods (310) between gun breech (300) and nozzle (110), press rods (310) is passed trigger (400) and is flexibly connected with trigger (400), be fixedly installed first piston (311) on press rods (310), the rear end of first piston (311) is stretched in the first pressure storehouse (312).

8. a kind of multifunction spray gun according to claim 7, it is characterized in that: the below in described the first pressure storehouse (312) is opened and is offered successively the second pressure storehouse (321) and the 3rd pressure storehouse (330), the second pressure storehouse (321) communicates with the first pressure storehouse (312), the lower end of trigger (400) is provided with the section of pulling (410), the front end that is provided with elastic force bar (320) and elastic force bar (320) in the second pressure storehouse (321) and the 3rd pressure storehouse (330) is resisted against in the section of pulling (410), be provided with the second piston (331) between the second pressure storehouse (321) and the 3rd pressure storehouse (330), the second pressure storehouse (321) is mobile in sealing and the two states that communicates with the second piston (331) with the 3rd pressure storehouse (330).

9. a kind of multifunction spray gun according to claim 8, it is characterized in that: offer the first inlet channel (510) and the second inlet channel (520) in described pikestaff (50), the first inlet channel (510) communicates with the first pressure storehouse (312) and the second pressure storehouse (321) respectively, the 3rd pressure storehouse (330) communicates with the second inlet channel (520), described the second inlet channel (520) with the movement of the second piston (331) with the second pressure storehouse (321) in sealing and the two states that communicates.