CN103480521B

CN103480521B - Multifunctional spray gun

Info

Publication number: CN103480521B
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: 2015-06-17
Anticipated expiration: 2033-09-26
Also published as: CN103480521A

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 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, with the instrument of spray gun as spray paint or coating, convenient and labor-saving, spray gun kind is in the market more, according to feed mode, is broadly divided into hydrocone type, gravity type and pressure type three kinds, and this is wherein common with the air gun of hydrocone type, its use is the most extensive.

No matter which kind of spray gun, its principle is that the bottom of spray gun is with batch can, compressed air flows through at a high speed at spray tip, produce parital vacuum around, batch can inside courtyard inlet nozzle is atomized into coating cloud and is evenly sprayed on body surface, and in order to strengthen the effect of spraying, this spray gun has often installed air cap in rifle head part, air cap have with the hole with atomization and amplitude modulation, as this enhanced spraying effect.Existing spray gun mainly comprises the batch can that rifle body and logical charge tube are connected with rifle body, the installation site of batch can is divided into two kinds, a kind of bottom being arranged on rifle body, another kind is arranged on the top of rifle body, such as, application publication number is that the patent of invention of 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, application publication number is that the patent of invention of 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, all there is respective advantage.

But along with the development of spraying technology, because user demand improves constantly, and also there is certain defect in the spray gun of this unidirectional installation batch can in use, and this spray gun can only use a kind of coating, and therefore its scope of application is restricted.Such as, some coating uses a batch can splendid attire, the limited volume of batch can, the words that the coating of splendid attire sprays not, spray coating operations just can not disposablely complete, need again to add coating, and this adds process of the coating coating of successively spraying can be made to occur problems such as junction vestige is more obvious, and spraying effect is reduced greatly, in addition, the occasion of some spraying needs two kinds of different colours or coating of different nature to mix to spray, and chemical reaction can occur in atmosphere because some coating exposes or after mixing in atmosphere, chemical reaction occur thus cause its character to change, therefore this coating must mix in the space closed, or two kinds of different coating are when mixing for the first time, its undercompounding, uneven, cause the coating being sprayed on body surface also uneven, 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 object of the invention is to there are the problems referred to above for existing technology, propose that a kind of scope of application is comparatively wide, the more much higher function spray gun of spray efficiency.

Object of the present invention realizes 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 rifle head, gun breech and rifle waist composition, rifle head is provided with coaxial nozzle and air-flow cap, air-flow cap offers amplitude modulation hole and orifice, coating material passage is offered in rifle head, pressure channel is offered in rifle waist, coating material passage communicates with nozzle, pressure channel and amplitude modulation sky, orifice communicates, the upper and lower two ends of rifle head offer the first installing hole for installing batch can and the second installing hole respectively, first installing hole all communicates with coating material passage with the second installing hole, first installing hole side opening is provided with flow channel, flow channel and body of a gun ft connection and connectivity part is provided with amplitude modulation 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 of being axially opened in the adjacent side of the first installing hole and to be opened on rear side of the first installing hole and with the second air flue of the first air flue vertical connection, 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 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 first installing hole is obliquely installed to gun breech by 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, rifle waist is provided with trigger, trigger top is two installing plates of symmetrical parallel setting, the two ends up and down of installing plate offer the first bar hole and the second bar hole respectively, installing plate upper end is connected with bracing frame through the first bar hole by the first fixed axis, and installing plate lower end is connected with the body of a gun through the second bar hole by the second fixed axis.

In above-mentioned a kind of multifunction spray gun, the front end distance of the first bar hole and the second bar hole 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 chamber communicated with pressure channel, axially press rods is provided with between gun breech and nozzle, press rods is passed trigger and is flexibly connected with trigger, press rods is fixedly installed first piston, and the rear end of first piston is stretched in the first Pressure chamber.

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

In above-mentioned a kind of multifunction spray gun, the first inlet channel and the second inlet channel is offered in described pikestaff, first inlet channel communicates with the first Pressure chamber and the second Pressure chamber respectively, 3rd Pressure chamber communicates with the second inlet channel, and described second inlet channel is in closed and the two states that communicates with the movement of the second piston with the second Pressure chamber.

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

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

2, secondly, the trigger of spray gun changes 2 triggers connected into by original traditional trigger, owing to having installed two batch cans, the pressure needed in spray gun is original twice, therefore the phenomenon that resistance is larger when using spray gun can be caused, and the dynamics that the trigger of 2 connections makes spray gun required is in use less, more laborsaving.

Accompanying drawing explanation

Fig. 1 is the overall 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 material 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 chamber; 313, the first spring; 320, elastic force bar; 321, the second Pressure chamber; 322, the second spring; 323, fixed head; 330, the 3rd Pressure chamber; 331, the second piston; 332, the 3rd spring; 333, spring support; 400, trigger; 410, portion is pulled; 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.

Detailed description of the invention

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

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

Rifle head 100 place is provided with nozzle 110, air-flow cap 120 that is 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, amplitude modulation hole 121 and orifice 122 is offered in air-flow cap 120, the rear end being positioned at nozzle 110 in rifle head 100 offers coating material passage 130, rifle waist 200 part offers the pressure channel 210 communicated with outside, coating material passage 130 communicates with nozzle 110, pressure channel 210 and amplitude modulation hole 121, orifice 122 communicates, rifle head about 100 two ends offer the first installing hole 140 and the second installing hole 150 for installing different batch can respectively, offer the first charging hole 141 in first installing hole 140 and communicate with coating material passage 130, offer the second charging hole 151 in second installing hole 150 to communicate with coating material passage 130 simultaneously, first charging 141 hole side opening is provided with flow channel 160, flow channel 160 is mistake around the first charging hole 141, flow channel 160 offers amplitude modulation mouth and communicates with rifle head 100 outside, 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, first installing hole 140 is connected difformity and the material feeding jar 60 of splendid attire different materials or same material and blanking tank 70 respectively with the second installing hole 150, when cocking 400, under rifle body air pressure inside compression, material feeding jar 60 and the coating in blanking tank 70 to enter in coating material passage 130 respectively by the first charging hole 141 and the second charging hole 151 and mix, and then are forced out nozzle 110 under compressed air pressure in coating material passage 130.

The upper and lower side of rifle head 100 offers two the batch can installing holes communicated with coating material passage 130 simultaneously, and connect the batch can being loaded with different material, make rifle body once can carry two batch cans, not only can be used in coating less or coating type is single when, also two kinds of different colours or material of different nature can be used for used in combination in the space closed, and when two kinds of coating are pre-mixed, if coating mixes uneven for the first time, when two kinds of coating arrive spray gun inside simultaneously, due to compressed-air actuated impulsive force, mix uneven coating also can uniformly spray at body surface, its scope of application is expanded, use face is wider, spray efficiency is improved.

As shown in Figure 3, flow channel 160 comprise the first air flue 161 of being axially opened in the first adjacent side of charging hole 141 and to be opened on rear side of the first charging hole 141 and the second air flue 162, second air flue 162 be positioned at rifle head 100 and rifle waist 200 junction and with rifle head 100, rifle waist 200 is in vertical state, one end of second air flue 162 is closed, the other end communicates with outside and forms above-mentioned amplitude modulation mouth, locate the first air flue 161 inside amplitude modulation mouth to communicate with the second air flue 162, 170 are cut down by regulating the amplitude modulation of installing at amplitude modulation mouth, adjustable second air flue 162 leads to the air mass flow size of the first air flue 161, first air flue 161 walks around the first charging hole and amplitude modulation hole 121, orifice 122 communicates, second air flue 162 and pressure channel 210 vertical connection, because pressure channel 210 is axially opened in rifle waist 200 inside, second air flue 162 is vertical with pressure channel 210, first time turnover can be formed by the pressure channel 210 compressed air stream entered in the second air flue 162, first air flue 161 is vertical with the second air flue 162, second time turnover can be formed by the second air flue 162 compressed air stream entered in the first air flue 161, finally sprayed by amplitude modulation hole 121 and orifice 122 respectively.

Because the upper and lower side at rifle head 100 has offered the first installing hole 140 and the second installing hole 150 connecting batch can simultaneously, make the runner of the compressed air stream of traditional rifle body inside occupied, what cause that the compressed air in the pressure channel 210 that communicates with amplitude modulation hole 121 in air-flow cap 120 and orifice 122 cannot be straight enters in amplitude modulation hole 121 and orifice 122, and the first air flue 161 is offered in the adjacent side being positioned at the first charging hole 141, and the second air flue 162 communicated with the first air flue 161 is offered in the rear end of the first charging hole 141, compressed air in pressure channel 210 is successively through the second air flue 162, first air flue 161, not only still maintain 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 the wearing and tearing of compressed air to rifle body also reduce, when compressed air enters in the second air flue 162, because the second air flue 162 is vertical with pressure channel 210, the pressure at right angle be subject in second air flue 162 is maximum, but be then 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 being compressed air in first air flue 161 is shorter, compressed air is also relative with the wearing and tearing of the first air flue 161 inwall to be reduced, therefore whole rifle head 100 part compressed air through time frictional force all less, effectively reduce the degree of wear of rifle head 100 part, the service life of whole rifle body is extended.

Further, on the basis that compressed air in pressure channel 210 need turn to through twice, 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 the second air flue 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 again formed by pressure channel 210 compressed air entered in the second air flue 162 and turn to, less in windage in 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 is roughly " U " type and tilts to gun breech 300, bracing frame 220 has a long limit and a minor face and long limit is positioned at the top of minor face, long limit and minor face are all connected with rifle waist 200, and the top portion thereof 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 offered the first installing hole 140 and the second installing hole 150 respectively, after installing batch can 60, the nose heave amount of rifle of the pure tank spray gun that the weight ratio of rifle head 100 is traditional wants large, can be more painstaking during use spray gun, first installing hole 140 is tilted backwards and offers, when material feeding jar 60 is arranged in the first installing hole 140, weight is to gun breech 300 transfer, 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, staff is comparatively comfortable in use, spray gun is while easy to use, labour intensity is also lower, because the first installing hole 140 tilts to gun breech 300, when material feeding jar 60 is arranged in the first installing hole 140, material feeding jar 60 also tilts to gun breech 300, and the bracing frame 220 that rifle waist 200 is arranged just makes material feeding jar 60 can rest on bracing frame 220, material feeding jar 60 is made to be unlikely to unsettled, because this increasing 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 bracing frame 220 and rifle waist 200 respectively, axially press rods 310 is provided with and press rods 310 front end is stretched in rifle head 100 at gun breech 300, it is inner that rear end enters into nozzle 110, press rods 310 is passed trigger 400 and is attached thereto, press rods 310 is fixedly connected with first piston 311, gun breech 300 offers the first Pressure chamber 312, the rear end of first piston 311 is stretched in the first Pressure chamber 312, between the rear end of first piston 311 and the first Pressure chamber 312 inwall, the first spring 313 is installed, axially elastic force bar 320 is provided with in the bottom of press rods 310, the bottom of the first Pressure chamber 312 offers the second Pressure chamber 321, the first inlet channel 510 and the second inlet channel 520 is offered in pikestaff 50, first inlet channel 510 communicates with the first Pressure chamber 312 and the second Pressure chamber 321, the rear end of the second Pressure chamber 321 offers the 3rd Pressure chamber 330 that internal diameter is greater than the second Pressure chamber 321, 3rd Pressure chamber 330 communicates with the second inlet channel 520, the second piston 331 is provided with in 3rd Pressure chamber 330, elastic force bar 320 stretches in the second Pressure chamber 321 and the 3rd Pressure chamber 330, the elastic force bar 320 being positioned at the second Pressure chamber 321 is provided with a fixed head 323, elastic force bar 320 is provided with the second spring 322 and the two ends of the second spring 322 are resisted against the front end of fixed head 323 and the second piston 331 respectively, second piston 331 is provided with the 3rd spring 332 and the rear end of the 3rd spring 332 is resisted against on the spring support 333 that arranges in the 3rd Pressure chamber 330, 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 of the second Pressure chamber 321 and the 3rd Pressure chamber 330 and the second Pressure chamber 321 and the 3rd Pressure chamber 330 be separated, therefore closed state is between the second inlet channel 520 and the first inlet channel 510.

As Fig. 4, shown in Fig. 5, the lower end of trigger 400 is the portion of pulling 410, trigger 400 upper end is two installing plates 420 of symmetrical parallel setting, the two ends up and down of installing plate 420 offer the first bar hole 421 and the second bar hole 422 respectively, first bar hole 421 and the second bar hole 422 are arranged in splayed 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 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, first fixed axis 230 is installed in first bar hole 421 and installing plate 420 upper end is connected with bracing frame 220, second fixed axis 240 is installed in second bar hole 422 and installing plate 420 lower end is 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 offered the second Pressure chamber 321 and the 3rd Pressure chamber 330, in the 3rd Pressure chamber 330, be provided with the second piston 331 and the second Pressure chamber 321 and the 3rd Pressure chamber 330 are separated, when cocking 400 first, first second spring 322 is 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 into and successively by the second Pressure chamber 321, first Pressure chamber 312 enters in pressure channel 210, finally sprayed by by amplitude modulation hole 121 and orifice 122, this time cocking 400, for detecting compressed air flowing in whole rifle body whether unobstructed or flow for debugging rifle body compressed air, so all can do the air circulation in rifle body before each sprayed coating and detect successively, prevent while coating ejection, cause because compressed air does not circulate to carry out amplitude modulation and atomization to coating, the inconvenience preventing the waste of coating and cause to spraying, environmental protection more, if continue cocking 400, move backward along with trigger 400 and drive press rods 310 to move backward, front end axially-movable in coating material passage 130 and nozzle 110 of press rods 310, coating material passage 130 is made repeatedly to produce draught head with outside air pressure, coating is sucked outside coating material passage 130 and then jetting nozzle 110 by batch can, and now elastic force bar 320 moves backward, second piston 331 is opened, air inflow in whole rifle body increases, first piston 311 compresses the air in the first Pressure chamber 312 repeatedly, second piston 331 compresses the air in the second Pressure chamber 321 and the 3rd Pressure chamber 330 repeatedly, increase compressed-air actuated pressure, flow and flow velocity, make the better effects if of amplitude modulation and atomization.

Further, owing to having installed upper and lower two batch cans at rifle head 100, the spray gun that single batch can compared by the coating entered in coating material passage 130 is more, therefore resistance during cocking 400 is larger, and trigger 400 and the connection of rifle waist 200 are increased to two, when after cocking 400 first, when continuing cocking 400, trigger 400 fulcrum is converted to the second fixed axis 240 by the first fixed axis 230 during cocking 400 first, and 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 required power exported is less, therefore when spraying paint, when spraying paint, cocking 400 can be lighter, flexibly.

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

Step one: first cocking 400, under force, the relative position of the first bar hole 421 and the first fixed axis 230 is fixing, trigger 400 is that fulcrum is close to pikestaff 50 with the first fixed axis 230, second bar hole 422 rear end gradually away from the second fixed axis 240 while 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 first inlet channel 510 and pressure channel 210, under the effect of elastic force bar 320, first second spring 322 compresses, air in first inlet channel 510 is compressed and successively to the second Pressure chamber 321, flowing in first Pressure chamber 312, and then in feed pressure passage 210, last by amplitude modulation hole 121, orifice 122 sprays, step one can repeat, and this step repeats to detect whether spraying from amplitude modulation hole 121 and orifice 122 of spray gun compressed air, judge whether amplitude modulation hole 121 and orifice 122 block with this, also 170 are cut down to regulate the pressure of amplitude modulation and atomization required air by amplitude modulation, flow and flow velocity, thus obtain the amplitude modulation effect of needs.

Step 2: on the basis of step one, continue cocking 400, because the second fixed axis 240 after step one 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, the application point of a power is formed in the curved portions 411 of trigger 400 and the front end face of first piston 311, the fulcrum of trigger 400 is made to 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 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 to move backward, the second Pressure chamber 321 and the 3rd Pressure chamber 330 is made to be in open state, 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 the second piston 331 successively, first piston 311 compress in pressure channel 210, finally sprayed by amplitude modulation hole 121 and orifice 122, in the compressed-air actuated process of first piston 311, piston driving press rods 310 axially-movable in coating material passage 130 with nozzle 110, and it is poor constantly to produce inner and outer air pressure in coating material passage 130 with nozzle 110, material feeding jar 60 is constantly sucked in coating material 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 amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.

Claims

1. a multifunction spray gun, comprise the rifle body with 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) composition, rifle head (100) is provided with coaxial nozzle (110) and air-flow cap (120), air-flow cap (120) offers amplitude modulation hole (121) and orifice (122), coating material passage (130) is offered in rifle head (100), pressure channel (210) is offered in rifle waist (200), coating material passage (130) communicates with nozzle (110), pressure channel (210) and amplitude modulation hole (121), orifice (122) communicates, it is characterized in that: rifle head (100) up and down two ends offers the first installing hole (140) for installing batch can and the second installing hole (150) respectively, first installing hole (140) all communicates with coating material passage (130) with the second installing hole (150), first installing hole (140) side opening is provided with flow channel (160), flow channel (160) and the body of a gun (10) ft connection and connectivity part is provided with amplitude modulation 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) of being axially opened in the first installing hole (140) adjacent side 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, 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 first air flue (161) and the second air flue (162) are in same plane, and described pressure channel (210) is positioned at the top of the second air flue (162).

4. a kind of multifunction spray gun according to claim 1 or 2 or 3, is characterized in that: described 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) of symmetrical parallel setting, the two ends up and down of installing plate (420) offer the first bar hole (421) and the second bar hole (422) respectively, installing plate (420) upper end is connected with bracing frame (220) through the first bar hole (421) by the first fixed axis (230), installing plate (420) lower end is connected with the body of a gun (10) through the second bar hole (422) by the second fixed axis (240).

6. a kind of multifunction spray gun according to claim 5, is characterized in that: the first bar hole (421) is less than the rear end distance of the first bar hole (421) and the second bar hole (422) with the front end distance of 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 chamber (312) communicated with pressure channel (210), axially press rods (310) is provided with between gun breech (300) and nozzle (110), press rods (310) is through trigger (400) and be flexibly connected with trigger (400), press rods (310) is fixedly installed first piston (311), the rear end of first piston (311) is stretched in the first Pressure chamber (312).

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

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