WO2022011811A1 - 一种喷雾枪 - Google Patents

一种喷雾枪 Download PDF

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Publication number
WO2022011811A1
WO2022011811A1 PCT/CN2020/114219 CN2020114219W WO2022011811A1 WO 2022011811 A1 WO2022011811 A1 WO 2022011811A1 CN 2020114219 W CN2020114219 W CN 2020114219W WO 2022011811 A1 WO2022011811 A1 WO 2022011811A1
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WO
WIPO (PCT)
Prior art keywords
spray
channel
liquid
wall
spraying
Prior art date
Application number
PCT/CN2020/114219
Other languages
English (en)
French (fr)
Inventor
王金峰
Original Assignee
宁波圣捷喷雾泵有限公司
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Publication date
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Publication of WO2022011811A1 publication Critical patent/WO2022011811A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0008—Sealing or attachment arrangements between sprayer and container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0027—Means for neutralising the actuation of the sprayer ; Means for preventing access to the sprayer actuation means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0059—Components or details allowing operation in any orientation, e.g. for discharge in inverted position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0086—Arrangements for allowing spraying and pouring

Definitions

  • the invention relates to the technical field of liquid pressure pumps, in particular to a spray gun that can be connected to a liquid pressure pump, in particular a spray gun with the functions of forward spraying, reverse spraying and 360-degree oblique side spraying.
  • Liquid pressure pumps are widely used in daily life, such as oily cleaning liquids, shampoos, cosmetics perfumes, insect repellents and other bottled liquid products used in the kitchen, all of which use liquid pressure pump technology. Compared with the traditional bottle opening method, it is more convenient and efficient, and the output is very large.
  • the spray gun is an indispensable tool for use with the commonly used liquid pressure pump, which usually includes the gun body, the piston rod and the trigger and other structures, and is used in conjunction with the liquid container. Its main working principle is to use the internal pressure of the piston to increase the internal pressure of the liquid container by compressing the space, so as to realize the pressure of the liquid in the liquid container.
  • the existing spray gun can only spray the liquid in the vertical forward spraying process.
  • the spraying position needs to spray the liquid pressure pump obliquely or backwardly at any position of 360 degrees, or the liquid is lower than the suction pressure
  • the liquid pipe When the liquid pipe is located, it cannot be used normally, which leads to great limitations in the use of the liquid pressure pump.
  • Chinese patent document (announcement date: June 29, 2018, announcement number: CN108216946A) discloses an inverted foam pump, including a storage bottle, a pump body is installed at the opening of the storage bottle, and an input end of the pump body extends into In the storage bottle, the input end of the pump body is sleeved with a reverse suction pipe, the pump body has a concave part opposite to the input port of the reverse suction pipe, the top of the pump body is provided with an annular groove, and the annular groove is sleeved with a It forms a sealing elastic gasket with the air supply hole of the pump body.
  • the output end of the pump body is connected with a net, the net is connected with a pressing head, and a pressing nozzle is installed at the end of the pressing head, and the side of the pressing nozzle is provided with soft rubber.
  • a spring is connected between them, and a ball valve is arranged at the input end of the pump body.
  • This inverted foam pump is easier to install, and the side of the nozzle is provided with a foldable valve plate made of soft rubber, which can effectively prevent foam overflow and residue, and make the product cleaner.
  • the above technical solution is a special reverse spray foam pump, which is generally used in special reverse spray equipment, which mainly solves the problem that a lot of foam liquid remains in the mouth of the pressing head in the prior art. Although it has the function of backward spraying, it cannot realize the multi-function of forward spraying, backward spraying and 360-degree oblique side spraying at any position.
  • the announcement number is: CN109835603A, and the announcement date is June 4, 2019. It is mainly to achieve the following purposes: 1. Improve the overall sealing performance of the spray gun, the ability to quickly cut off the flow and the isolation effect; 2. . Through the improvement of the elastic pin seat structure, the service life of the spray gun can be extended, so that it can still maintain better performance after long-term and frequent use; 3. By improving the transmission components connecting the trigger and the piston, the overall device can be extended. Fourth, after installing the spray gun of this technical solution, the liquid container is well isolated from the outside world; Fifth, the sealing and reset ability of the spray gun is improved to ensure excellent spray effect.
  • the purpose of this application is to optimize the technical solution of the spray gun submitted by the applicant with the announcement number: CN109353683A under the premise of ensuring the overall tightness, rapid current interruption capability, isolation effect, etc., in order to achieve the Under the premise that the spray gun can spray normally, the overall sealing performance is good, the ability to quickly cut off the flow and the isolation effect, etc., it can also realize the function of backward spraying and 360-degree oblique side spraying at any position. At the same time, it can also realize spraying or spraying foam or different spray lines.
  • the spraying requirements of the function and can prevent the spray gun from overflowing the liquid in the bottle due to the trigger force during the transportation process, which is beneficial to environmental protection.
  • a spray gun comprising:
  • a gun body wherein the gun body is provided with a liquid spray channel and a hydraulic pressure channel that are communicated with each other;
  • the nozzle part which is rotatably connected to the gun body, is used to open or close the liquid spray channel and realize the function of spraying or foam;
  • the pressure chamber part is arranged on the gun body and is parallel to the liquid spray channel and is arranged below the liquid spray channel for use.
  • the pressure chamber part includes a piston cylinder, a pressure chamber and a piston, and the piston sliding seal is arranged inside the pressure chamber and the suction action of the spray gun is realized through the air pressure change in the pressure chamber; wherein , the piston is provided with air holes along the axis direction from the outside of the piston to the middle position; it also includes,
  • the liquid communication part is integrally arranged at the lower part of the gun body to realize the liquid feeding and liquid passing parts;
  • an opening and closing device is arranged inside the liquid communication part
  • the side of the opening and closing device facing the liquid container is sealed and plugged with a reverse spray device that realizes the functions of forward spraying, reverse spraying and 360-degree oblique side spraying of the spray gun;
  • the side wall of the bottom of the pressure chamber facing the liquid communication part is provided with gas and liquid ports respectively communicating with the pressure liquid channel and the opening and closing device.
  • the spray gun is equipped with a reverse spray device to realize the functions of forward spray, reverse spray and 360-degree oblique side spray of the spray gun, and by setting air holes on the piston, the air pressure inside and outside the liquid container can be adjusted through the air holes.
  • An opening and closing device is set in the liquid communication part, which effectively ensures the sealing performance and rapid flow-off capability of the spray gun during use.
  • the spray gun has good sealing performance, the liquid is not easy to overflow and flow out, and the overall sealing performance, rapid flow cut-off ability and isolation effect are good; Tipping and inversion will not cause seal failure, and realize the functions of forward spraying, reverse spraying, and oblique side spraying at any angle of the spray gun, which is convenient for users to use at will, and can meet the requirements of different occasions.
  • the reverse spray device includes a valve body that is plug-in connection with the opening and closing device and has the functions of spray gun forward spray, reverse spray, and oblique side spray; the valve body is integrally provided with a forward spray channel and a reverse spray.
  • a valve, an air return valve and an intubation channel; the forward injection channel, the reverse injection valve and the intubation channel are internally connected to form a valve body three-way structure.
  • the reverse spray device is provided with a forward spray channel, a reverse spray valve and an air return valve on the valve body.
  • the reverse spray valve When the reverse spray device is applied to a spray gun for use, the reverse spray valve is provided with a reverse spray valve, and the reverse spray valve includes: The reverse injection valve body and the reverse injection valve, the forward injection channel, the reverse injection valve and the intubation channel are internally connected to form a valve body three-way structure. The channel is connected; it can effectively realize the functions of forward spray, reverse spray and oblique side spray.
  • the reverse spray device is provided with an air return valve, through which the functions such as rapid suction and quick reset of the spray gun during use are realized, thereby ensuring the sealing performance and rapid flow cut-off capability of the entire reverse spray device.
  • the valve body adopts an integrated design and can be made of flexible materials by injection molding, which is convenient for production and can ensure the sealing performance during use. At the same time, the functions can not affect each other, and the design structure is more reasonable and the production is more convenient.
  • the backward spray valve includes a backward spray valve body and a backward spray valve ball; the backward spray valve body is provided with a backward spray channel; the backward spray valve ball is movably arranged inside the backward spray valve body for use in In order to realize the on-off of the reverse spray channel inside the reverse spray valve body; the forward spray channel and the reverse spray channel are connected at the inlet end of the forward spray channel, and the intubation channel is connected along the forward spray channel and the reverse spray channel.
  • the axial direction of the valve body is extended downward to form a three-way structure of the valve body; the upper end of the backward spray channel is provided with a plug connection structure.
  • the above structure makes the reverse spray valve ball seal at the point where the reverse spray channel communicates with the forward spray channel to block the reverse spray channel, and the liquid enters the forward spray channel through the cannula channel and finally sprays out, which will not affect the normal operation of the spray gun.
  • the reverse spray valve ball opens the connection between the reverse spray channel and the forward spray channel, and the liquid enters through the reverse spray channel and then passes through the forward spray channel.
  • the spray can realize the functions of reverse spray and oblique side spray, so as to realize the function that the spray gun can be used in the positive position, the reverse position, and the oblique side position of each angle.
  • the reverse spray channel is provided with at least one liquid inlet, and the liquid inlet is opened on the side wall of the reverse spray channel;
  • the forward spray channel is arranged as a vertical channel along the axial direction, and the The upper port of the positive spray channel is provided with a bell mouth, and a snap ring groove is arranged on the inner wall below the bell mouth.
  • At least one liquid inlet is arranged on the reverse spray channel, and the preferred solution is to provide two liquid inlets, which can ensure that the liquid can smoothly enter the reverse spray channel and realize the function of reverse spray or oblique side spray.
  • the above structure of the forward spray channel is to facilitate the connection with the opening and closing device.
  • a sealing cavity surface is provided at the connection between the lower end of the backward spraying channel and the forward spraying channel.
  • the backward spraying valve ball abuts on the sealing cavity surface to form a sealing structure, and the backward spraying channel is sealed;
  • the ball of the reverse spray valve is far away from the surface of the sealing cavity, thereby opening the reverse spray channel.
  • the sealing cavity surface is provided at the connection between the lower end of the backward spray channel and the forward spray channel to facilitate the backward spray valve ball to seal the communication port during forward spray, so as to ensure the normal operation of the forward spray.
  • the air return valve includes an air return valve body and a return air valve ball movably arranged inside the air return valve body, and a return air passage is arranged inside the air return valve body; the air return valve ball The reciprocating motion along the return air passage inside the return air valve body opens or closes the return air passage.
  • the diameter of the upper passage of the air return passage is smaller than the diameter of the lower passage, and an upper sealing cavity surface is provided where the lower passage communicates with the upper passage, and a lower buckle is provided at the air return port at the lower end of the air return passage;
  • the return air valve ball switches between the upper sealing cavity surface and the lower buckle position to realize the opening and closing of the return air passage.
  • the return air passage is provided with the upper sealing cavity surface and the lower buckle position in order to facilitate the sealing of the return air valve ball to block or open the return air passage.
  • the setting of the lower buckle position is to limit the position of the return air valve ball.
  • the return air valve ball When the reverse spray device is used in the positive position, the return air valve ball is at the lower buckle position, and there are two symmetrically arranged lower buckle positions. When the return air valve ball is used When matched with the lower buckle, other parts of the air return port at the lower end are still communicated with the interior of the liquid container, so as to facilitate the entry of air into the interior of the liquid container.
  • the air return port at the lower end of the return port can be designed to be higher than the liquid inlet of the reverse channel, so that In the process of backward spraying and oblique side spraying, the gas can only enter the return valve through the return gas channel, but will not enter the backward spray channel.
  • a first sealing position for sealing or opening the air hole and a second sealing position for sealing or opening the gas and liquid port are respectively provided on the outer wall of the end of the piston facing the inside of the pressure chamber.
  • the first sealing position is set to realize the sealing and opening of the air hole, so as to realize the blocking and communication between the inside of the liquid container and the outside world, so as to ensure the change of the air pressure inside and outside the liquid container during use, and then realize the spraying of the spray gun or the liquid.
  • the setting of the second sealing position is to realize the sealing or opening of the gas and liquid port, and also to cooperate with the air pressure change to realize the overall linkage of the spray gun, and finally realize the function of spraying or adding liquid.
  • the nozzle part is provided with a foam head cap; the foam head cap comprises a cap seat and a foam net arranged on the cap seat.
  • a foam head cap is set at the liquid outlet of the nozzle part.
  • the foam head cap is turned upwards and the liquid is sprayed from the liquid outlet in the shape of a spray;
  • the foam head cap is turned down to cover the liquid outlet.
  • the liquid is in a foam shape when sprayed from the liquid outlet through the foam head cap, which satisfies different shapes of spraying. requirements, and will not affect the overall shape of the nozzle part.
  • the nozzle part is provided with a liquid outlet, and the inside of the nozzle part is provided with a plurality of liquid flow channels that communicate with the liquid outlet and the liquid spray channel; the outer side of the liquid outlet is provided with a card The inner side of the clamping groove is provided with a buckle structure; the foam head cap is rotatably connected to the clamping groove and can open or cover the liquid outlet to realize spray spraying or foam spraying.
  • the nozzle part is also provided with a rotation stop structure.
  • the nozzle part is provided with an anti-rotation structure to prevent children from turning the nozzle part to eject the liquid, preventing children from misoperation and causing safety problems, thereby ensuring the safety of the spray gun.
  • the spray gun is also provided with a trigger
  • the trigger is flexibly connected to the piston through a trigger connector and a piston connector, and the trigger connector and the piston connector are compressed by pulling the trigger, thereby driving the piston reciprocating motion.
  • the trigger is the operating part of the spray gun. By pulling the trigger, the piston can be driven to reciprocate, so as to increase or decrease the internal pressure of the pressure chamber, thereby realizing the suction action.
  • an overflow prevention buckle is movably clamped between the trigger and the piston; one end of the overflow prevention buckle is inserted and clamped outside the piston cylinder, and the other end of the overflow prevention buckle is clamped on the outside of the piston cylinder.
  • the anti-overflow clip includes an integrated snap ring, a card body and a ring buckle, and the card body is provided with a hook that is clipped with the trigger.
  • the anti-spill buckle is set between the trigger and the piston to ensure that the trigger is forced during the transportation of the spray gun, so that the liquid inside the liquid container overflows, causing environmental pollution.
  • a reset piece is also arranged between the trigger and the pressure chamber, and the reset piece is an integral component, including a reset elastic strip, a front-end clip and a rear-end arc clip that are symmetrically arranged on the left and right sides.
  • the front end of the reset piece is clamped with the trigger, and the rear end of the reset piece is clamped between the outer wall of the piston cylinder and the liquid communication part.
  • the setting of the reset part is to realize the reset of the trigger, and then realize the reciprocating motion of the piston, so as to realize the compression of the gas inside the pressure chamber, so that the spray gun can spray or apply liquid; Moreover, this structure ensures that the entire component not only has an elastic reset function, but also is conducive to recycling, and is more conducive to the all-plastic production of the entire spray gun, which is environmentally friendly.
  • a cylinder through pipe and three layers of connecting walls are arranged on the coaxial line of the liquid communication part, and the cylinder through pipe is arranged perpendicular to the axis of the piston cylinder and communicates with the pressure chamber through the gas and liquid port;
  • the three-layer connecting wall includes an inner wall, a middle wall and an outer wall; the lower end faces of the inner wall, the middle wall and the outer wall are sequentially arranged incrementally; the inner wall, the middle wall and the outer wall are sequentially arranged.
  • the wall is ringed from inside to outside and from top to bottom to form a base sealing connection inner cavity and a base sealing plug-in card outer cavity.
  • the cylinder through pipe and the three-layer connecting wall are arranged in the liquid communication part.
  • the cylinder through pipe is arranged to facilitate the setting of the opening and closing device, so as to connect or block the hydraulic channel and realize the function of injection or blocking of injection; and the three-layer connection
  • the wall is provided to facilitate the plug-in sealed connection of the opening and closing device.
  • the setting of the gas channel enables the external atmosphere and the inside of the liquid container to form intake or return gas during use, increase or decrease the air pressure inside the liquid container and form an isobaric state with the outside to ensure the suction and injection of the liquid.
  • a gas return hole is opened at the connection between the upper part of the inner cavity of the base seal and the piston cylinder, and the gas hole on the piston, the air return hole, the inner cavity of the base sealing connection and the backward spray device form a gas channel together;
  • the upper ring of the outer wall of the inner wall is provided with a sealing and clamping structure; the inner side of the outer wall is provided with an inclined wall.
  • the setting of the gas channel is to realize the communication and blocking of the internal and external air pressure of the liquid container, and then realize the air pressure difference or equal pressure, so as to realize the spraying and liquid feeding action of the spray gun, and ensure the use effect of the entire spray gun.
  • the opening and closing device includes a base, an elastic sealing seat and a sealing valve
  • the upper seat surface of the base is provided with a stepped opening and closing cavity
  • the coaxial line ring with the stepped opening and closing cavity is provided with an inner inserting ring wall
  • the inner wall of the inner insertion ring is provided with a sealing structure
  • the outer wall of the outer insertion ring wall is provided with an anti-separation structure.
  • the opening and closing device is provided with a base, an elastic sealing seat and a sealing valve.
  • the base and the three-layer connecting wall form a structure of mutual plug-in sealing connection, which is convenient for installation and can also ensure the sealing performance after the card is inserted.
  • the base, elastic sealing seat and sealing valve in the opening and closing device are all made of flexible materials, all plastic production is realized, which can It is convenient for the overall recycling, and the flexible material has good sensitive performance during use, which makes the opening and closing effect faster, the reset is fast, the liquid is not easy to overflow and flow out, and the overall sealing performance, rapid current interruption ability and isolation effect are good.
  • the sealing valve is movably sealed inside the elastic sealing seat
  • the elastic sealing seat is arranged inside the cavity formed by the inner inserting ring wall of the base and can be elastically deformed up and down, and is connected with the upper seat of the base. Face seal crimp.
  • the elastic sealing seat is deformed downward under the action of air pressure to let out the liquid outlet space, thereby realizing the spraying function of the spray gun, and after the air pressure disappears, the elastic sealing seat is reset by its own elasticity to assist in completing the suction action .
  • the elastic sealing seat has good elastic performance, fast deformation and reset, and good sealing performance.
  • the lower seat surface of the base is provided with a liquid inlet channel coaxially with the step opening and closing cavity, the lower end of the outer wall of the liquid inlet channel is provided with a plugging slope, and the outer wall of the liquid inlet channel is provided with a plugging slope.
  • the middle part of the valve seat is provided with a clamping protrusion; a return valve seat is arranged parallel to the axis of the liquid inlet channel, and the base between the inner plug ring wall and the outer plug ring wall where the air return valve seat is located is opened with a The air return port; the liquid inlet channel is provided with an air return valve seat on the other side of the base with a reverse spray valve seat.
  • the above structure of the base is to facilitate the quick plug-in sealing connection of the pouring device, which can not only ensure the quick and convenient connection, but also ensure the sealing effect, so that the liquid container has a good isolation effect from the outside world, and can be tilted, poured, and inverted. It will not cause seal failure, and at the same time, it can also meet the multi-directional spraying requirements such as reverse spraying and oblique side spraying.
  • the spray gun is provided with a reverse spray device, so that the entire spray gun has a novel, compact and reasonable structure design, can realize multi-functions such as forward spray, reverse spray, oblique side spray, etc., and has good stability and sealing effect.
  • the spray gun can achieve the spray function in the upright, inverted or 360-degree oblique position, and realize the purpose that the spray gun can be used in the upright, inverted, and oblique positions of various angles; and the spray gun is in the
  • the liquid outlet is equipped with a foam head cap, which can realize the requirements of multi-functional and different-shaped spraying such as spraying and foaming, and meet the multi-functional requirements of different customers for different spraying shapes.
  • the spray gun is also provided with an anti-overflow buckle between the trigger and the piston, which prevents the trigger force of the spray gun during transportation, which causes the liquid inside the liquid container to overflow, resulting in the occurrence of environmental pollution.
  • the setting of the opening and closing device of the spray gun makes the whole spray gun have good sealing performance, the liquid is not easy to overflow and flow out, and the overall sealing performance, rapid flow breaking ability and isolation effect are good; can cause seal failure.
  • Fig. 1 is a kind of structural representation of spray gun of the present invention
  • Fig. 2 is a kind of sectional view of spray gun of the present invention
  • Fig. 3 is a kind of structural representation of reverse spray device of the present invention.
  • Fig. 4 is a kind of structural schematic diagram of another angle of the reverse spray device of the present invention.
  • Fig. 5 is a kind of sectional structure schematic diagram of the backward spray device in the present invention.
  • FIG. 6 is a schematic structural diagram of the connection between the nozzle portion and the foam head cap in the present invention.
  • Fig. 7 is a kind of structural representation of anti-overflow buckle in the present invention.
  • Fig. 8 is a kind of structural representation of the trigger connector and the piston connector in the present invention.
  • Fig. 9 is a kind of structural representation of gun body in the present invention.
  • Figure 10 is a schematic structural diagram of the connection between the gun body and the nozzle part in the present invention.
  • Fig. 11 is a kind of structural representation of the opening and closing device in the present invention.
  • Figure 12 is a structural schematic diagram of the connection between the gun body, the anti-overflow buckle and the reverse spray device in the present invention.
  • Fig. 13 is a kind of structural representation when the spray gun of the present invention is spraying
  • Fig. 14 is a kind of structural representation that the spray gun of the present invention is spraying liquid
  • Fig. 15 is a kind of structural representation when the fog gun of the present invention is sprayed backwards
  • Fig. 16 is a kind of structural representation of spray gun of the present invention pouring liquid
  • Reverse injection device 11, valve body, 12, forward injection channel, 121, bell mouth, 122, snap ring groove, 13, reverse injection valve, 131, reverse injection valve body, 132, reverse injection valve Ball, 133, Reverse spray channel, 134, Liquid inlet, 135, Seal cavity surface, 136, Plug connection structure, 14, Air return valve, 141, Air return valve body, 142, Air return valve ball, 143, Return air channel, 144, end return air port, 145, upper sealing cavity surface, 146, lower buckle position, 15, intubation channel;
  • Nozzle part, 200 liquid flow channel, 201, liquid outlet, 202, snap groove, 203, snap structure;
  • the base is sealed to connect the inner cavity, 233, the base seal is inserted into the outer cavity of the card, 234, the air return hole, 235, the gas channel;
  • Anti-rotation structure 270, Anti-rotation block, 271, Anti-rotation groove;
  • trigger, 280 trigger connector, 281, piston connector, 282, hook groove, 283, connecting rod, 284, fixed body, 285, rotating groove, 286, rotating insert groove;
  • the left and right referred to in the present invention refer to the upper and lower parts of the upright position of the spray gun when the nozzle part of the spray gun is perpendicular to the human body during normal spraying.
  • a spray gun includes:
  • the gun body 2 the gun body is provided with a liquid spray channel 8 and a pressure liquid channel 22 that communicate with each other;
  • the nozzle part 20 is a component rotatably connected to the gun body 2 for opening or closing the liquid spray channel 8 and realizing the function of spraying or foaming;
  • the pressure chamber part 21 is arranged on the gun body 2 and is parallel to the liquid spray channel 8 and is arranged below the liquid spray channel 8 for realizing air compression;
  • the pressure chamber part 21 includes a piston cylinder 210, a pressure chamber 211 and Piston 212, the piston 212 is slidably sealed inside the pressure chamber 211, and the suction action of the spray gun is realized by the change of the air pressure inside the pressure chamber 211; wherein, the piston 212 is upward along the axis direction from the outside of the piston to the middle position Open with air holes 2120; also include,
  • the liquid communication part 23 is integrally arranged at the lower part of the gun body 2 for realizing the liquid loading and liquid passing;
  • liquid communication part 23 is provided with an opening and closing device 24;
  • the side of the opening and closing device 24 facing the liquid container is sealed and plugged with a reverse spray device 1 that realizes the functions of forward spraying, reverse spraying and 360-degree oblique side spraying of the spray gun;
  • the side wall of the bottom of the pressure chamber 212 facing the liquid communication part is provided with gas and liquid ports 248 respectively communicating with the pressure liquid channel 22 and the opening and closing device 24 .
  • the reverse spray device 1 includes a valve body 11 that is connected to the opening and closing device in a card-type manner and has the functions of spray gun forward spray, reverse spray, and oblique side spray; the valve body 11 is on the A forward injection channel 12, a reverse injection valve 13, a return valve 14 and an intubation channel 15 are integrally provided; the forward injection channel 12, the reverse injection valve 13 and the intubation channel 15 communicate with each other to form a valve body three-way structure.
  • the back-spray valve 13 includes a back-spray valve body 131 and a back-spray valve ball 132 ; the back-spray valve body 131 is provided with a back-spray channel 133 ; the back-spray valve ball 132 is movably arranged inside the back-spray valve body 131 It is used to realize the on-off of the reverse injection channel 133 inside the reverse injection valve body 131; the forward injection channel 12 is communicated with the reverse injection channel 133 at the inlet end of the forward injection channel 12, and the intubation channel 15 is along the forward injection channel.
  • the axial direction of the communication between the channel 12 and the backward spray channel 133 is extended downward, thereby forming a valve body three-way structure; the upper end of the backward spray channel 133 is provided with a plug connection structure 136 .
  • the backward spray channel 133 is provided with at least one liquid inlet 134, and the liquid inlet 134 is opened on the side wall of the backward spray channel 133;
  • the forward spray channel 12 is arranged as a vertical channel along the axial direction, and the
  • the upper port of the forward spray channel 12 is provided with a bell mouth 121 , and the inner wall below the bell mouth 121 is provided with a snap ring groove 122 .
  • a sealing cavity surface 135 is provided at the lower end of the backward spray channel 133 in communication with the forward spray channel 12.
  • the backward spray valve ball 132 abuts on the sealing cavity surface 135 to form a sealing structure, and the backward spray channel 133 is sealed;
  • the reverse spray valve ball 132 is away from the sealing cavity surface 135 , thereby opening the reverse spray channel 133 .
  • the return valve 14 includes a return valve body 141 and a return valve ball 142 movably arranged inside the return valve body 141.
  • the return valve body 141 is provided with a return air passage 143; the return valve ball 142 reciprocates along the return air passage 143 inside the return air valve body 141 to open or close the return air passage 143 .
  • the diameter of the upper passage of the air return passage 143 is smaller than the diameter of the lower passage, and an upper sealing cavity surface 145 is provided where the lower passage communicates with the upper passage.
  • the return air valve ball 142 switches between the upper sealing cavity surface 145 and the lower buckle position 146 to realize the opening and closing of the return air passage.
  • a first sealing position 2121 for sealing or opening the air hole 2120 and a second sealing position 2122 for sealing or opening the gas and liquid port 248 are respectively provided on the outer wall of the end of the piston facing the inside of the pressure chamber 211 .
  • the nozzle part 20 is provided with a foam head cap 25 ;
  • the foam head cap 25 includes a cap seat 250 and a foam net 251 arranged on the cap seat.
  • the nozzle part 20 is provided with a liquid outlet 201, and the nozzle part 20 is provided with a plurality of liquid flow channels 200 connected with the liquid outlet 201 and the liquid ejection channel 8 inside; the liquid outlet
  • the outer side of the mouth 201 is provided with a snap groove 202, and the inside of the snap groove 202 is provided with a snap structure 203; the foam head cap 25 is rotatably connected to the snap groove 202 and can open or cover the liquid outlet 201 achieves spray spray or foam spray.
  • the nozzle portion 20 is further provided with a rotation-stopping structure 27 .
  • the spray gun is also provided with a trigger 28.
  • the trigger 28 is flexibly connected to the piston 212 through a trigger connector 280 and a piston connector 281, and the trigger connector 280 and the trigger connector 280 are compressed by pulling the trigger 28.
  • the piston connecting piece 281 drives the reciprocating motion of the piston.
  • An overflow prevention buckle 29 is also movably clamped between the trigger 28 and the piston 212;
  • the anti-overflow buckle 29 includes a snap ring 290, a card body 291 and a ring buckle 292 that are integrally arranged, and the card body 291 is provided with a hook that is snapped with the trigger 29.
  • a reset member 26 is also provided between the trigger 28 and the pressure chamber portion 21 .
  • the reset member 26 is an integral component, including a reset elastic strip 260 , a front clip 261 and a rear end symmetrically arranged on the left and right sides.
  • the front end of the reset member 26 is clamped with the trigger 28
  • the rear end of the reset member 26 is clamped between the outer wall of the piston cylinder and the liquid communication portion 23 .
  • a cylinder through pipe 230 and three layers of connecting walls 231 are coaxially disposed on the liquid communication portion 23 , and the cylinder through pipe 230 is arranged perpendicular to the axis of the piston cylinder 210 and passes through the gas and liquid port 248 It communicates with the pressure chamber 211;
  • the three-layer connecting wall 231 includes an inner wall 2310, a middle wall 2311 and an outer wall 2312; the lower end surfaces of the inner wall 2310, the middle wall 2311 and the outer wall 2312 increase sequentially
  • the inner wall 2310 , the middle wall 2311 and the outer wall 2312 are ringed from the inside to the outside and from top to bottom to form a base sealing connection inner cavity 232 and a base sealing card outer cavity 233 .
  • a gas return hole 234 is formed at the connection between the upper part of the base sealing connection cavity 232 and the piston cylinder 210, and the air hole 2120 on the piston, the air return hole 234, the base sealing connection cavity 232 and the backward spray device together form a gas
  • the opening and closing device 24 includes a base 240 , an elastic sealing seat 241 and a sealing valve 242 .
  • the upper seat surface of the base 240 is provided with a stepped opening and closing cavity 243 , which is the same as the stepped opening and closing cavity 243 .
  • the axis ring is provided with an inner plug-in ring wall 244 and an outer plug-in ring wall 245, the inner wall of the inner plug-in ring wall 244 is provided with a sealing structure 246, and the outer wall of the outer plug-in ring wall 245 is provided with a sealing structure 246.
  • An anti-dropping structure 247 is provided on it.
  • the sealing valve 242 is movably sealed inside the elastic sealing seat 241, and the elastic sealing seat 241 is arranged inside the cavity formed by the inner inserting ring wall of the base 240 and can perform elastic deformation movement up and down, and is connected with the base 240.
  • the lower seat surface of the base 240 is provided with a liquid inlet channel 30 coaxially with the step opening and closing cavity 243, and the lower end of the outer wall of the liquid inlet channel 30 is provided with a plugging slope 31.
  • the liquid inlet channel The middle part of the outer wall of 30 is provided with a snap-on protrusion 32; a return valve seat 33 is arranged parallel to the axis of the liquid inlet channel 30, and the inner plug ring wall 244 and the outer plug ring where the air return valve seat 33 is located
  • a return air port 34 is opened on the base 240 between the walls 245 ; a reverse jet valve seat 35 is set on the base on the other side of the liquid inlet channel 30 with the return air valve seat 33 .
  • the spray gun mainly includes a gun body 2, a cover body 4 used to cover the gun body inside and realize a beautifying appearance, an internal threaded connector 5 used to realize the threaded connection with the liquid container, and also include a pump body for pumping.
  • Liquid suction pipe 6, the spray gun can be connected to any shape of liquid container 7 for use.
  • the cover body includes an upper cover body 40 and a lower cover body 41 ; the upper cover body and the lower cover body are snap-connected; the internal thread connector 5 is movably connected to the gun body 2 .
  • the main parts such as the cover body, nozzle part, gun body, reset piece, trigger, sealing valve, base, internal thread connection piece, reverse spray device, buckle and so on are all made of PP material, realizing all-plastic production. All can be recycled, environmentally friendly and pollution-free.
  • the spray gun is mainly provided with a reverse spray device 1, and the reverse spray device 1 includes:
  • the valve body 11 is a valve body connected to the base of the spray gun in a card-type manner for realizing the functions of forward spray, reverse spray and oblique side spray of the spray gun; the valve body 11 is provided with a forward spray channel 12, a reverse spray valve 13 and Return valve 14;
  • the reverse injection valve 13 includes a reverse injection valve body 131 and a reverse injection valve ball 132 ; the reverse injection valve ball 132 is movably arranged inside the reverse injection valve body 131 to realize reverse injection inside the reverse injection valve body 131 On-off of channel 133;
  • the return valve 14 includes a return valve body 141 and a return valve ball 142 movably arranged inside the return valve body 141 .
  • the return valve ball 142 is along the return air passage 143 inside the return valve body 141 . The reciprocating motion opens or closes the return air passage;
  • the forward injection channel 12 communicates with the reverse injection channel 133 inside the reverse injection valve body at the inlet end of the forward injection channel, and extends downward along the axial direction at the connection between the forward injection channel 12 and the reverse injection channel 133
  • a cannula channel 15 to form a valve body three-way structure.
  • the valve body 11 is a flexible material member provided in an integrated structure; the axes of the forward injection channel 12 , the reverse injection channel 133 and the air return channel 143 are arranged parallel to each other, and the reverse injection channel 133 and the return air are arranged in parallel with each other.
  • the channels 143 are respectively arranged on both sides of the forward spray channel 12; the liquid inlet 134 of the backward spray channel 133 is opened on the side wall of the backward spray channel 133, and the lower end of the air return channel 143 is on the plane where the air return port 144 is located.
  • the forward spray channel 12 is arranged as a vertical channel along the axial direction, the upper port of the forward spray channel 12 is provided with a bell mouth 121, and the lower part of the bell mouth 121 A snap ring groove 122 is provided on the inner wall of the .
  • the valve body is made of one-piece flexible material, which can realize all-plastic environmental protection design, the valve body can be recycled, and the one-piece structure is convenient to manufacture, which is more convenient to ensure the sealing performance during use.
  • the forward spray channel, the reverse spray channel and the return air channel are designed in parallel, so that each function can not affect each other during use, and this design structure is more reasonable, and the production is more convenient.
  • the channel goes into the return valve, but not into the backspray channel.
  • the positive spray channel is vertically arranged, the upper port is provided with a bell mouth, and the snap ring groove is arranged on the inner wall to facilitate the plug-in connection with the base on the spray gun, realize quick sealing and plug connection, and make the operation more convenient and quick.
  • a sealing cavity surface 135 is provided at the lower end of the backward spray channel 133 in communication with the forward spray channel 12.
  • the backward spray valve ball 132 abuts on the sealing cavity surface 135 to form a sealing structure, and the backward spray channel 133 is sealed;
  • the The upper end of the backward spray channel 133 is provided with a plug connection structure 136;
  • the diameter of the upper channel of the air return channel 143 is smaller than the diameter of the lower channel, and an upper sealing cavity surface 145 is provided where the lower channel communicates with the upper channel.
  • the air return port 144 at the lower end of the air passage 143 is provided with a lower buckle position 146 ; when spraying forward or backward, the air return valve ball 142 is switchably sealed between the upper sealing cavity surface 145 and the lower buckle position 146 .
  • the setting of the lower buckle position is to limit the position of the return air valve ball.
  • the return air valve ball 142 is located at the lower buckle position 146, and two lower buckle positions are symmetrically arranged.
  • the valve ball 142 is matched with the lower buckle position 146, other parts of the lower air return port 144 are still communicated with the interior of the liquid container, so as to facilitate the entry of air into the interior of the liquid container.
  • the reverse spray device is provided with a forward spray channel, a reverse spray valve and a gas return valve on the valve body.
  • the reverse spray valve includes a reverse spray The valve body and the reverse injection valve, and the forward injection channel is communicated with the reverse injection channel inside the reverse injection valve body at the inlet end of the forward injection channel, and the forward injection channel and the reverse injection channel are communicated downward along the axial direction.
  • the three-way structure enables the forward spray or the reverse spray and oblique side spray to communicate with two channels; when the forward spray, the reverse spray valve ball is sealed in the reverse spray channel and communicates with the forward spray channel The reverse spray channel is blocked at the same time, and the liquid enters the forward spray channel through the cannula channel and is finally sprayed out, which will not affect the normal use of the spray gun; when it is necessary to spray backward or obliquely (the oblique side spray can be performed at any angle of 360 degrees) When the spray gun is in an upside-down or oblique position, the reverse spray valve ball opens the connection between the reverse spray channel and the forward spray channel.
  • the liquid enters through the reverse spray channel and then sprays out through the forward spray channel, which can realize reverse spray and oblique side spray. function, so that the spray gun can be used in the positive position, the inverted position, and the oblique side position of all angles; as long as there is liquid in the inverted spray device, it can be sprayed out through the inverted spray valve by the backward spray method, so that the liquid can be sprayed out.
  • the liquid inside the container can be fully utilized without residue.
  • the liquid outlet 201 of the nozzle part 20 is provided with a foam head cap 25.
  • the foam head cap 25 includes a cap seat 250 and a foam net 251 arranged on the cap seat.
  • the foam net is made of PP material net.
  • the mesh of the foam mesh 251 is preferably 60-100 mesh, preferably 80 mesh as a common mesh, and the specific mesh setting is determined according to the foam effect;
  • the inner side of the connecting groove 202 is provided with a snap structure 203; the foam head cap 25 and the nozzle part 20 are integrally rotated and connected to the snap groove 202 of the nozzle part 20 through the elasticity of the foam head cap 25 itself and can be opened or closed.
  • the nozzle part 20 is provided with a rotation stop structure 27, and the rotation stop structure is a rotation stop block 270 arranged on the upper cover body 40 and a rotation stop block 270 arranged on the nozzle part.
  • Anti-rotation groove 271 on 20; anti-rotation grooves 271 are respectively provided around the nozzle part 20.
  • the anti-rotation block 270 cooperates with the anti-rotation groove 271 to limit the rotation of the nozzle part.
  • a foam head cap 25 is provided at the liquid outlet of the nozzle part.
  • the flip foam head cap When it is necessary to spray in a spray shape, open the flip foam head cap upwards, and the liquid is sprayed out from the liquid outlet in the shape of a spray; and when it is necessary to form a spray shape in a foam shape, turn down the foam head cap 25, and put the foam head cap It is snapped on the snap groove to cover the liquid outlet.
  • the nozzle part 20 is also provided with a number of liquid flow channels 200.
  • the inlet of the liquid flow channel 200 is connected with the liquid outlet of the liquid spray channel 8, and the outlet is connected with the liquid outlet 201 of the nozzle part;
  • the liquid flow channel 200 is provided with at least Two, and the nozzle part 20 is provided with the same number of through gear slots and off gear slots as the liquid flow channel 200, and the gun body 2 is provided with a convex body for being stuck in the through gear slot or in the off gear slot.
  • the through-gear grooves and the off-gear grooves are distributed equiangularly with each other in turn; taking two liquid flow channels 200 as an example, when the convex body is stuck in one through-gear groove, one liquid flow channel 200 is connected to the liquid outlet of the liquid spray channel 8, and the connection between the other liquid flow channel 200 and the liquid outlet 201 is blocked by the sealing wall.
  • the channel 200 is connected to the liquid outlet of the liquid spray channel 8, and the convex body can cooperate with the through-gear slot and the off-gear slot to improve the positioning effect, ensure the stability during the working process or ensure the sealing positioning effect.
  • the on-gear slot and the off-gear slot can be set to four gears, of which the first gear is set as the spray gear, the third gear is set as the spray line gear, and the second and fourth gears are closed gears.
  • the difference between the first gear or the third gear is whether it is to spray coarse foam or fine foam.
  • the first gear is selected, the fine foam is sprayed, and the third gear is selected.
  • a trigger 28 is also provided, and the trigger 28 is flexibly connected to the piston 212 through a trigger connector 280 and a piston connector 281; and the trigger connector 280 and the piston connector 281 are compressed by pulling the trigger 28, thereby driving the piston
  • the trigger 28 is provided with a hook groove 282; the trigger connector 280 and the piston connector 281 are respectively an elastic sphere, as shown in FIG. 8 , the trigger connector 280 and the piston connector 281 are connected by a connecting rod 283 as It is integrated and made of PP material, and also includes a fixed body 284.
  • the fixed body 284 is provided with a rotating groove 285, and the piston connecting piece 281 is rotatably embedded in the rotating groove 285;
  • the inner side of the side of the trigger close to the piston cylinder is provided with a rotating insert groove 286 , and the trigger connecting piece 280 is rotatably embedded in the rotating insert groove 286 .
  • the rotary adjustment can be performed according to the force direction of the trigger, which avoids the problem that the rigid piston connecting rod is easily displaced during use, resulting in poor sealing performance.
  • a reset piece 26 is also provided between the trigger 28 and the pressure chamber portion 21.
  • the reset piece 26 is an integral component, and the reset piece is an integral PP material component, including reset bombs symmetrically arranged along the gun body.
  • the front end of the reset piece 26 is clamped with the trigger 28 , and the rear end of the reset piece 26 is clamped between the outer wall of the piston cylinder and the upper part of the liquid communication part 23 .
  • the trigger compresses the reset piece 26, and pushes the movement to move inward; when the trigger is released, the reset piece 26 drives the trigger to reset under the action of the elastic force, and the reset piece 26 is made of one-piece injection molding, which is convenient to manufacture and facilitates recovery. environmental Protection.
  • the matching effect formed by the piston connecting piece 280 and the trigger connecting piece 281 is compared with the common piston rod.
  • the common piston rod is usually directly connected to the bottom of the piston, and the length is relatively large. In the process of use, it is easy to age and break, and the rigid piston rod itself is affected by the bending force during the turning process of the trigger, which makes the cooperation effect between the trigger and the piston poor; some elastic piston rods have poor orientation. It is easy to tilt, and the movement performance of the piston driven by compression is poor.
  • the shorter connecting rod 283 is not easy to age and break, and has good orientation
  • the piston connecting piece 280 and the trigger connecting piece 281 are elastic spheres with Rotation ability, the bending force that should act on the rigid cylindrical body is transformed by rotation, so that the elastic sphere itself is deformed by force.
  • the sphere itself causes damage, and it can still maintain good shape characteristics and mechanical properties after long-term use.
  • An overflow prevention buckle 29 is also movably clamped between the trigger 28 and the piston 212; as shown in FIG.
  • the other end of the overflow buckle 29 is clamped on the trigger 28; as shown in FIG. 7 , the overflow prevention buckle 29 includes a snap ring 290 and a card body 291 and a ring buckle 292, which are integrally arranged.
  • 291 is provided with a hook 293 that is hooked to the trigger, and the hook 293 is connected to the hook groove 282 in a card-type manner.
  • the trigger is the operating part of the spray gun. By pulling the trigger, the piston can be driven to reciprocate, so that the pressure inside the pressure chamber can be increased or decreased, thereby realizing the suction action.
  • the anti-spill buckle is arranged between the trigger and the piston to ensure that the trigger of the spray gun is forced to overflow the liquid inside the liquid container during transportation, causing environmental pollution.
  • a cylinder through pipe 230 and three layers of connecting walls 231 are coaxially disposed in the liquid communication part 23 , and the cylinder through pipe 230 is arranged perpendicular to the axis of the piston cylinder 210 and is close to the piston cylinder.
  • the bottom wall of the body 210 communicates with the pressure chamber 211 through a gas and liquid port 248;
  • the three-layer connecting wall 231 includes an inner wall 2310, an intermediate wall 2311 and an outer wall 2312; the inner wall 2310 , the lower end faces of the middle wall 2311 and the outer wall 2312 are sequentially arranged incrementally; the inner wall 2310, the middle wall 2311 and the outer wall 2312 are ringed from the inside to the outside and from the top to the bottom to form a base sealingly connecting the inner cavity 232 and the base
  • the outer cavity 233 of the plug-in card is sealed, and the upper part of the base sealing connection inner cavity 232 is connected with the piston cylinder 210 and a return air hole 234 is opened.
  • the gas channel 235 is formed together with the gas return channel 143 on the reverse spray device.
  • the outer wall of the inner wall is provided with a sealing and clamping structure 2313 ; the inner side of the outer wall is provided with an inclined wall 2314 .
  • the cylinder through pipe and the three-layer connecting wall are arranged in the liquid communication part.
  • the cylinder through pipe is arranged to facilitate the setting of the opening and closing device, so as to connect or block the hydraulic channel and realize the function of injection or blocking of injection; and the three-layer connection
  • the wall is provided to facilitate the plug-in sealed connection of the opening and closing device.
  • the opening and closing device 24 includes a base 240 , an elastic sealing seat 241 and a sealing valve 242 .
  • the upper seat surface of the base 240 is provided with a stepped opening and closing coaxial with the cylinder through pipe 230 .
  • Cavity 243, the coaxial ring of the step opening and closing cavity 243 is provided with an inner plug ring wall 244 and an outer plug ring wall 245, and the inner wall of the inner plug ring wall 244 is provided with a sealing structure 246.
  • the outer wall of the outer plug-in ring wall 245 is provided with an anti-separation structure 247 ;
  • the sealing valve 242 is movably sealed inside the elastic sealing seat 241 , and the elastic sealing seat 241 is elastically pressed on the bottom of the base 240 The inner side is inserted into the cavity formed by the ring wall and is sealed and crimped with the upper seat surface of the base 240;
  • the upper part of the elastic sealing seat 241 is provided with a plug-in sealing horn tube 2410, the outer wall of the plug-in sealing horn tube 2410 and the inner wall of the cylinder through pipe 230 Elastic sealing connection;
  • the elastic sealing seat 241 is provided with a sealing cavity 2411 along the axis, the sealing valve 242 is movably sealed inside the sealing cavity 2411 and moves up and down along the sealing cavity 2411, the lower part of the elastic sealing seat 241 is provided with an annular sealing body 2412, the annular sealing The outer wall of the body 2412 is sealed with the inner wall of the inner
  • the opening and closing device is provided with a base, an elastic sealing seat and a sealing valve.
  • the base and the three-layer connecting wall form a structure of mutual plug-in sealing connection, which is convenient for installation and can also ensure the sealing performance after the card is inserted.
  • it is compressed downward or elastically reset under the action of the pressure of the pressure chamber, so that the liquid container is connected or blocked with the pressure fluid passage.
  • the sealing valve on the elastic sealing seat will also open upward during the suction action of the piston.
  • the base, elastic sealing seat and sealing valve in the opening and closing device are all made of flexible materials, all plastic production is realized, which can It is convenient for the overall recycling, and the flexible material has good sensitive performance during use, which makes the opening and closing effect faster, the reset is fast, the liquid is not easy to overflow and flow out, and the overall sealing performance, rapid current interruption ability and isolation effect are good.
  • the lower seat surface of the base 240 is provided with a liquid inlet channel 30 coaxially with the step opening and closing cavity 243, and the lower end of the outer wall of the liquid inlet channel 30 is provided with a plugging slope 31.
  • the liquid inlet channel The middle part of the outer wall of 30 is provided with a snap protrusion 32; a return valve seat 33 is provided parallel to the axis of the liquid inlet channel 30, and the inner plug ring wall and the outer plug ring where the air return valve seat 33 is located
  • the base between the walls is provided with an air return port 34; the base on the other side of the liquid inlet channel 30 is provided with a return air valve seat 33 is provided with a reverse jet valve seat 35.
  • the above structure of the base is to facilitate the quick plug-in sealing connection of the pouring device, which can not only ensure the quick and convenient connection, but also ensure the sealing effect, so that the liquid container has a good isolation effect from the outside world, and can be tilted, poured, and inverted. It will not cause seal failure, and at the same time, it can also meet the multi-directional spraying requirements such as reverse spraying and oblique side spraying.
  • a sealing ring 9 is also arranged between the base 240 and the inner threaded connecting piece 5 to seal the liquid inside the liquid container and prevent the leakage of the liquid.
  • the spray gun When the spray gun is in use, it is screwed together with the liquid container 7 through the inner threaded connecting piece 5, the nozzle part 20 is rotated to make it in an open state, and the spraying or foaming or spraying line is selected according to the needs. If the spraying function is selected , the foam head cap 25 is opened.
  • the connecting piece 281 further pushes the piston 212 to move toward the inside of the pressure chamber 211, compressing the air inside the pressure chamber 211, and the compressed air enters the cylinder through-pipe 230 from the pressure chamber through the gas-passing liquid port 248, and pushes the elastic sealing seat 241 to deform downwards move, so as to allow the liquid outlet space A, the liquid outlet space and the liquid spray channel 8 to communicate with the outside of the nozzle part, at this time, the air pressure inside the liquid container 7 is greater than the air pressure at the liquid outlet space, and the sealing valve 242 moves upward under the action of the internal air pressure Movement, open the liquid channel, the liquid inside the liquid container is sucked into the positive spray channel 12 through the suction pipe 6, enters the liquid outlet space A through the step opening and closing cavity 243, and then passes through the pressure liquid channel 22 and the liquid spray channel 8, Finally, it is sprayed out through the liquid flow channel 200 and the liquid outlet 201 in a spray shape, or finally sprayed out in a foam shape through the foam net
  • the pressure generated in the liquid container becomes smaller.
  • the first sealing position 2121 of the piston exceeds the air return hole 234 of the gun body and the sealing of the air return hole disappears.
  • the external air passes through The air hole 2120 on the piston enters the return air hole 234, and then enters the liquid container 7 through the gas channel 235, so that the internal pressure of the liquid container 7 is consistent with the external atmospheric pressure (see FIG. 13);
  • the liquid inside the liquid container 7 enters the liquid outlet space A through the positive spray channel 12 through the suction pipe 6 to complete a new liquid application (see Figure 14). Repeat the above steps to achieve continuous spraying.
  • the liquid container 7 and the spray gun are turned upside down together or placed at an inclined side at any angle.
  • the backward spraying valve ball 132 is in the state of opening the backward spraying channel 133
  • the air return valve ball 142 is located at the upper sealing cavity surface 145, which seals the air return channel 143, pulls out the anti-overflow buckle 29, pulls the trigger 28, and the trigger 28 drives the trigger connector 280 and the piston connector 281 to push the piston 212 moves to the inside of the pressure chamber 211, compresses the air inside the pressure chamber 211, and the compressed air enters the cylinder through pipe 230 from the pressure chamber through the gas and liquid port 248, and pushes the elastic sealing seat 241 to deform and move downward, thereby allowing the liquid to be discharged.
  • the liquid outlet space A and the liquid spray channel 8 are communicated with the outside of the nozzle part.
  • the air pressure inside the liquid container 7 is greater than the air pressure at the liquid outlet space, and the sealing valve 242 moves upward under the action of the internal air pressure to open the liquid channel.
  • the liquid inside the liquid container enters the forward spray channel 12 through the reverse spray channel, enters the liquid outlet space A through the stepped opening and closing cavity 243, then passes through the pressure liquid channel 22 and the liquid spray channel 8, and finally passes through the liquid flow channel 200 and
  • the liquid outlet 201 is sprayed out in the form of a spray, or is finally sprayed out in the form of a foam through the foam net 251 .
  • the pressure generated in the liquid container becomes smaller.
  • the first sealing position 2121 of the piston exceeds the air return hole 234 of the gun body and the sealing of the air return hole disappears.
  • the external air passes through The air hole 2120 on the piston enters the air return hole 234, and then enters the liquid container 7 through the air passage 235.
  • the air pressure will lift the air return valve ball 142, so that the air enters the liquid inside the container, so that the internal pressure of the liquid container 7 is consistent with the external atmospheric pressure; release the trigger 28, the trigger 28 is reset under the action of the reset member 26, at this time, the gas passage 235 is blocked by the first piston seal 2121 on the piston, and at the same time, The air return valve ball 142 falls back to the upper sealing cavity surface 145 and seals with the upper sealing cavity surface to further block the gas channel 235; the liquid inside the liquid container 7 enters the forward spraying channel 12 through the reverse spraying channel, and then flows from the positive spraying channel.
  • the spray channel 12 enters the liquid outlet space A, completes a new liquid application, and repeats the above steps to achieve continuous spraying.
  • the spray gun is equipped with a reverse spray device to realize the functions of forward spray, reverse spray and oblique side spray of the spray gun. Since the reverse spray device is provided with a valve body three-way structure, when the spray gun is spraying forward, the spray gun is reversed.
  • the valve ball seal blocks the reverse spray channel at the connection between the reverse spray channel and the forward spray channel, and the liquid enters the forward spray channel through the cannula channel and is finally sprayed out, which will not affect the normal use of the spray gun;
  • the reverse spray valve ball opens the connection between the reverse spray channel and the forward spray channel, and the liquid enters through the reverse spray channel and then sprays out through the forward spray channel, which can realize reverse spray and oblique side spray.
  • the spray gun has good sealing performance, the liquid is not easy to overflow and flow out, and the overall sealing performance, the ability to quickly cut off the flow and the isolation effect are good; Pouring and inversion will not cause seal failure.
  • the spray gun Since the spray gun is provided with an air return valve on the reverse spray device, whether it is forward spray or reverse spray and any oblique side spray at a 360-degree angle, after spraying or spraying foam, the gas inside and outside the liquid container can be cleaned in time. Partition, in the reset process after the trigger is pressed to the bottom and released, the partition resets quickly, and no air enters the liquid spray channel 8, so as to ensure that no gas enters the liquid container, and avoids a small amount of liquid in the liquid spray channel 8 in the prior art. When the phenomenon of dripping outflow occurs, after the spray gun sprays or sprays foam or spray line in a single time, the trigger reset process is fast, which can realize rapid reset and isolation, and avoid the occurrence of residual dripping.

Abstract

一种喷雾枪，包括：枪体（2），枪体（2）内部设置有相互连通的喷液通道（8）和压液道（22）；还包括喷嘴部（20）和压力腔部（21），压力腔部（21）包括活塞缸体（210）、压力腔（211）和活塞（212），所述的活塞（212）滑动密封设置在压力腔（211）内部并且通过压力腔（211）内部的气压变化实现喷雾枪的抽吸动作；活塞（212）上沿轴线方向自活塞（212）的外部向中部位置开设有气孔（2120）；液体连通部（23），液体连通部（23）内部设置有启闭装置（24）；启闭装置（24）朝向液体容器的一侧密封插接有一实现喷枪正喷、倒喷以及360度斜侧喷功能的倒喷装置（1）；压力腔（211）的腔底朝向液体连通部（23）一侧的侧壁上设置有分别连通压液道（22）和启闭装置（24）的过气过液口（248）。该喷雾枪能够实现正喷、倒喷和360度斜侧喷以及喷雾或喷泡沫、喷线功能，同时能够有效避免儿童操作，防止运输过程中液体溢出。

Description

一种喷雾枪 技术领域
本发明涉及液体压泵技术领域，尤其涉及一种可以连接到液体压泵使用的喷雾枪，特别具有正喷、倒喷和360度斜侧喷功能的喷雾枪。
背景技术
液体压泵在日常生活中的应用非常广泛，如厨房用的油污清洁液、洗发水、化妆类用品香水、驱虫剂等瓶装液体用品，均会使用到液体压泵技术，液体压泵技术相较于传统的开瓶方式更加方便、高效，而且产量非常大。
喷雾枪则是配合常用液体压泵使用的必不可少的工具，其通常包括枪体、活塞杆和扳机等结构，与液体容器配合使用。其主要工作原理是利用活塞内压，通过压缩空间使得液体容器内压增大，从而实现将液体容器内的液体压出。
但是现有的喷雾枪在使用过程中只能是直立式正喷才能够将液体喷出，当喷射的位置需要将液体压泵360度任意位置斜侧喷或倒喷时，或者液体低于吸液管位置时，则无法正常使用，这导致了液体压泵使用存在极大的局限性。
中国专利文献(公告日：2018年6月29日，公告号：CN108216946A)公开了一种倒喷泡沫泵，包括储料瓶，储料瓶开口处安装有泵体，泵体的输入端伸入储料瓶内，泵体的输入端套装有倒吸液管，泵体上具有与倒吸液管的输入口相对的凹陷部，泵体的顶端设有环形凹槽，环形凹槽内套装有与泵体的补气孔形成密封的弹性垫片，泵体的输出端连接有网通，该网通上连接有按头，按头端部安装有按咀，该按咀侧面设置有由软胶制作的、可翻折的阀片，该阀片内形成储液槽，泵体内分别安装有大、小活塞，小活塞内设置有针柱，该针柱外套装有副柱，该副柱与小活塞之间连接有弹簧，泵体的输入端设置有球阀。这种倒喷泡沫泵更易于安装，按咀侧面设置有由软胶制作的、可翻折的阀片，可以有效防止泡沫溢出和残留，使产品使用更加清洁。
上述技术方案是一种专门的倒喷泡沫泵，一般是装配在专用的倒喷设备中使用的，其主要是解决现有技术部会有较多泡沫液体残留在按头的嘴部问题。其虽然具有倒喷功能，但是并不能够实现正喷、倒喷和360度任意位置斜侧喷这种多功能。
申请人在先提交的专利申请，如公告号为：CN109353683A，公告日为2019年2月19公开的一种喷雾枪，其旨在解决的是喷雾枪头密封效果不佳，机构稳定性较差的问题；而公告号为：CN109835603A，公告日为2019年6月4日，其主要为了实现以下几个目的：一、提高喷雾枪整体密封性、快速断流能力和隔绝效果等方面性能；二、通过弹性弹子座结构的 改进，延长喷雾枪的使用寿命，使其在长期、频繁地使用后仍能够保持较优的性能；三、通过对连接扳机和活塞的传动组件进行改进，延长整体装置的使用寿命，改善使用手感；四、确保在装设本技术方案喷雾枪后，液体容器与外界隔绝效果良好；五、提高喷雾枪的密封复位能力，保障喷雾效果优异。
而本申请的目的旨在保证整体密封性、快速断流能力、隔绝效果等方面要求的前提下，通过对申请人在先提交的公告号为：CN109353683A的喷雾枪技术方案进行优化，以期实现在喷雾枪能够正常喷射，整体密封性好，快速断流能力和隔绝效果等前提下，还能够实现倒喷和360度任意位置斜侧喷功能，同时，还可以实现喷雾或喷泡沫或喷线不同功能的喷射要求，并能防止喷雾枪在运输过程因扳机受力使瓶内液体溢出现象的发生，有利于环保。
发明内容
为了实现本申请的上述发明目的，而提供一种整体密封性、快速断流能力、隔绝效果好，能够实现正喷、倒喷和360度斜侧喷以及能够实现喷雾或喷泡沫或喷线功能，同时能够有效避免防止儿童操作，防止运输过程中液体溢出的喷雾枪。
本发明实现其发明目的所采用的技术方案为：一种喷雾枪，包括：
枪体，所述的枪体内部设置有相互连通的喷液通道和压液道；
喷嘴部，转动连接在枪体上用于打开或关闭喷液通道并且实现喷雾或泡沫喷射功能的部件；压力腔部，设置在枪体上并且平行于喷液通道设置在喷液通道下方用于实现空气压缩的部位；所述的压力腔部包括活塞缸体、压力腔和活塞，所述的活塞滑动密封设置在压力腔内部并且通过压力腔内部的气压变化实现喷雾枪的抽吸动作；其中，所述的活塞上沿轴线方向自活塞外部向中部位置开设有气孔；还包括，
液体连通部，一体设置在枪体的下部用于实现上液和过液的部位；
其中，所述的液体连通部内部设置有启闭装置；
所述的启闭装置朝向液体容器的一侧密封插接有一实现喷枪正喷、倒喷以及360度斜侧喷功能的倒喷装置；
所述的压力腔的腔底朝向液体连通部一侧的侧壁上设置有分别连通压液道和启闭装置的过气过液口。
该喷雾枪，通过设置一倒喷装置，实现了喷雾枪的正喷、倒喷及360度任意角度的斜侧喷功能，而且通过在活塞上设置气孔，通过气孔实现液体容器内外气压的变化调节，在液体连通部设置启闭装置，有效保证了喷雾枪在使用过程中的密封性和快速断流能力。使得该喷雾枪，密封性能好，液体不易外溢、外流，整体密封性、快速断流能力和隔绝效果等方面 性能好；液体容器装配该喷雾枪后，液体容器与外界隔绝效果优异，斜置、倾倒、倒置均不会引起密封失效，实现了喷雾枪的正喷、倒喷、任意角度斜侧喷功能，方便了用户的随意使用，能够满足不同场合使用的要求。
作为优选，所述的倒喷装置包括一与启闭装置插卡式连接具有喷枪正喷、倒喷、斜侧喷功能的阀体；所述的阀体上一体设置有正喷通道、倒喷阀、回气阀和插管通道；所述的正喷通道、倒喷阀和插管通道内部连通形成阀体三通结构。该倒喷装置，在阀体上设置有正喷通道、倒喷阀和回气阀，在将该倒喷装置应用到喷雾枪上使用时，由于设置有倒喷阀，而倒喷阀包括有倒喷阀体和倒喷阀，正喷通道、倒喷阀和插管通道内部连通形成阀体三通结构，阀体三通结构使得正喷或倒喷或360度斜侧喷时能够两两通道连通；可以有效实现正喷、倒喷和斜侧喷等功能。而且该倒喷装置上设置有回气阀，通过回气阀实现喷雾枪在使用过程中快速抽吸快速复位等功能，从而保证了整个倒喷装置的密封性和快速断流能力。阀体采用一体式设计，可以采用柔性材料注塑制成，既方便制作，同时还能够保证在使用过程中的密封性能，在设计时将正喷通道、倒喷通道和回气通道平行设计，使用时各功能能够互不影响，而且这样的设计结构更加合理，制作更加方便。
作为优选，所述的倒喷阀包括倒喷阀体和倒喷阀球；所述的倒喷阀体内部设置有倒喷通道；所述的倒喷阀球活动设置在倒喷阀体内部用于实现倒喷阀体内部倒喷通道的通断；所述的正喷通道与倒喷通道在正喷通道的进口端处连通，所述的插管通道沿正喷通道和倒喷通道连通处的轴线方向向下延伸设置，从而形成阀体三通结构；所述的倒喷通道的上端设置有插接连接结构。上述结构，使得当正喷时，倒喷阀球密封在倒喷通道与正喷通道连通处阻断倒喷通道，液体通过插管通道进入正喷通道最后喷出，不会影响喷雾枪的正常使用；而当需要倒喷或斜侧喷时，喷雾枪处于倒置或斜侧位置，倒喷阀球打开倒喷通道与正喷通道的连通处，液体通过倒喷通道进入然后经正喷通道后喷出，能够实现倒喷和斜侧喷功能，从而实现了喷雾枪在正位、倒位、各个角度的斜侧位都能够使用的功能。
作为优选，所述的倒喷通道上设置有至少一个进液口，所述的进液口开设在倒喷通道的侧壁上；所述的正喷通道沿轴向设置成垂直通道，所述的正喷通道的上部端口设有喇叭口，所述的喇叭口下方的内壁上设置有卡接环槽。倒喷通道上设置有至少一个进液口，优选方案是设置两个进液口，可以保证液体能够顺利进入倒喷通道，实现倒喷或斜侧喷功能。正喷通道的上述结构是为了方便与启闭装置的连接。
作为优选，所述的倒喷通道下端与正喷通道连通处设置有密封腔面，正喷时，倒喷阀球抵接在密封腔面上形成密封结构，倒喷通道被密闭；倒喷或斜侧喷时，倒喷阀球远离密封 腔面，从而打开倒喷通道。在倒喷通道下端与正喷通道连通处设置密封腔面是为了方便倒喷阀球能够在正喷时密封住连通口，保证正喷的正常进行。
作为优选，所述的回气阀包括回气阀体和活动设置在回气阀体内部的回气阀球，所述的回气阀体内部设置有回气通道；所述的回气阀球沿回气阀体内部的回气通道往复运动打开或关闭回气通道。
作为优选，所述的回气通道的上部通道直径小于下部通道直径并且在下部通道与上部通道连通处设置有上部密封腔面，所述的回气通道的下端回气口处设置有下部扣位；当正喷或倒喷以及斜侧喷时，所述的回气阀球在上部密封腔面和下部扣位之间切换式实现回气通道的启闭。回气通道设置上部密封腔面和下部扣位是为了方便回气阀球的密封阻断或打开回气通道。下部扣位的设置是为了对回气阀球的限位，当倒喷装置处于正位使用时，回气阀球处于下部扣位处，下部扣位对称设置有两个，当回气阀球与下部扣位配合时，下端回气口的其他部位仍然与液体容器内部连通，以方便空气进入液体容器内部。为了保证在倒喷使用过程中密封性，使气体不会进入倒喷通道，从而保证上液的手感以及喷液效果，可以将回气口的下端回气口设计高于倒通道的进液口，这样在倒喷斜侧喷过程中气体只能够通过回气通道进入回气阀，而不会进入倒喷通道。
作为优选，所述的活塞朝向压力腔内部一端的外壁上分别设置有用于密封或打开气孔的第一密封位和用于密封或打开过气过液口的第二密封位。设置第一密封位是为了实现气孔的密封和打开，以实现液体容器内部与外界的阻断与连通，从而保证在使用过程中液体容器内外气压的变化，进而实现喷雾枪的喷射击或上液功能。而第二密封位的设置是为了实现对过气过液口的密封或打开，也是为了配合气压变化从而实现喷雾枪的整体连动，最终实现喷射或上液功能，
作为优选，所述的喷嘴部上设置有泡沫头帽；所述的泡沫头帽包括帽座和设置在帽座上的泡沫网。为了实现多功能不同形状喷射的要求，在喷嘴部的出液口设置泡沫头帽，当需要进行喷雾形状的喷射时，向上打开翻转泡沫头帽，液体以喷雾的形状从出液口喷出；而当需要形成泡沫形状的喷射时，向下翻盖泡沫头帽，使其覆盖住出液口，此时，液体从出液口经泡沫头帽喷射出时是呈泡沫状，满足了不同形状喷射的要求，而且对喷嘴部的整体形状不会产生影响。
作为优选，所述的喷嘴部上设置有出液口，所述的喷嘴部的内部设有多个连通出液口和喷液通道的液流道；所述的出液口的外侧设置有卡接槽，所述的卡接槽内侧设置有卡扣结构；所述的泡沫头帽转动连接在卡接槽上并且可打开或盖住出液口实现喷雾喷或泡沫喷。
作为优选，所述的喷嘴部上还设置有止转结构。在喷嘴部设置有止转结构，是为了防止儿童转动喷嘴部，使液体喷出，防止儿童误操作造成安全问题，从而保证了喷雾枪使用的安全性。
作为优选，所述的喷雾枪还设置有扳机，所述的扳机通过一扳机连接件和一活塞连接件与活塞柔性连接，并且通过扳机的扳动压缩扳机连接件和活塞连接件，从而带动活塞的往复运动。扳机是喷雾枪的操作部件，通过扳动扳机可以带动活塞往复运动，从而实现压力腔内部压力的增减，进而实现抽吸动作。
作为优选，所述的扳机和活塞之间还活动卡接有一防溢卡扣；所述的防溢卡扣一端插卡在活塞缸体的外部，所述的防溢卡扣另一端卡接在扳机上；所述的防溢卡扣包括一体设置的卡环、插卡体和环扣，所述的插卡体上设置有与扳机卡接的卡钩。在扳机与活塞之间设置防溢卡扣，是为了保证喷雾枪在运输过程中扳机受力使液体容器内部的液体溢出，造成环境污染。
作为优选，所述的扳机与压力腔部之间还设置有复位件，所述的复位件为一体式构件，包括左右对称设置的复位弹条、前端卡条和后端弧形卡条，所述的复位件的前端与扳机卡接，所述的复位件的后端卡接在活塞缸体外壁与液体连通部之间。复位件的设置是为了实现扳机的复位，进而实现活塞的往复运动，从而实现压缩压力腔内部气体，使喷雾枪进行喷液或上液；而复位件设置为一体式结构，方便通过注塑制造，而且这种结构保证了整个部件既具有弹性复位功能，同时还有利于回收利用，更有利于整个喷雾枪的全塑制作，环保。
作为优选，所述的液体连通部同轴线设置有缸通管和三层连接壁，所述的缸通管垂直于活塞缸体的轴线设置并且通过过气过液口与压力腔连通；所述的三层连接壁包括内层壁、中间壁和外层壁；所述的内层壁、中间壁和外层壁的下端面依次递增设置；所述的内层壁、中间壁和外层壁由内向外由上向下环设形成底座密封连接内腔和底座密封插卡外腔。在液体连通部设置缸通管和三层连接壁，缸通管的设置是为了方便启闭装置的设置，从而连通或阻断压液道，实现喷射或阻断喷射的功能；而三层连接壁的设置是为了方便启闭装置的插卡式密封连接。气体通道的设置使得在使用过程中外部大气与液体容器内部形成进气或回气，使液体容器内部气压增加或减小以及与外部形成等压状态，保证液体的抽吸和喷射。
作为优选，所述的底座密封连接内腔的上部与活塞缸体连接处开设有回气孔，所述的活塞上的气孔、回气孔和底座密封连接内腔以及倒喷装置共同形成气体通道；所述的内层壁的外壁上环设有密封卡接结构；所述的外层壁的内侧设置有倾斜壁。气体通道的设置是为了实现液体容器内部与外部气压的连通与阻断，进而实现气压差或等压，从而实现喷雾枪的喷 射及上液动作，保证整个喷雾枪的使用效果。
作为优选，所述的启闭装置包括底座、弹性密封座和密封阀，所述的底座的上座面上设置有阶梯启闭腔，与阶梯启闭腔同轴线环设有内侧插接环壁和外侧插接接环壁，所述的内侧插接环壁的内壁上环设有密封结构，所述的外侧插接环壁的外壁上设置有防脱结构。启闭装置设置有底座、弹性密封座和密封阀，底座与三层连接壁之间形成相互插卡式密封连接的结构，既方便安装同时还能够保证插卡后的密封性能，弹性密封座在使用过程中在压力腔压力的作用下向下压缩或弹性复位，从而使得液体容器与压液道连通或阻断，同时，弹性密封座上的密封阀也会在活塞抽吸动作过程中向上打开或向下关闭弹性密封座上的液体通道，使液体向上流出或阻断液体的流出，由于启闭装置中的底座、弹性密封座和密封阀均采用柔性材料制作，实现了全塑制作，能够方便整体的回收利用，且在使用过程中柔性材料的灵敏性能好，使得启闭效果更加快捷，复位快，液体不易外溢、外流，整体密封性、快速断流能力和隔绝效果等方面性能好。
作为优选，所述的密封阀活动密封设置在弹性密封座内部，所述的弹性密封座设置在底座的内侧插接环壁形成的腔体内部并可上下作弹性变形运动，并与底座的上座面密封压接。弹性密封座通过其自身的弹性，在气压的作用下向下变形让出出液空间，从则实现喷雾枪的喷射功能，而气压消失后，弹性密封座通过自身弹性复位，辅助完成抽吸动作。弹性密封座的弹性性能好，变形和复位快速，密封性能好。
作为优选，所述的底座的下座面上与阶梯启闭腔同轴线设置有进液通道，所述的进液通道的外壁的下端设置有插接斜面，所述的进液通道的外壁的中部设置有卡接凸起；平行于进液通道的轴线设置有回气阀座，所述的回气阀座所在的内侧插接环壁和外侧插接环壁之间的底座上开设有回气口；进液通道设有回气阀座的另一侧的底座上设置有倒喷阀座。底座的上述结构是为了方便倒喷装置的快速插卡式密封连接，既能够保证连接的快捷方便，同时还能够保证密封效果，使得液体容器与外界隔绝效果好，而且斜置、倾倒、倒置均不会引起密封失效，同时还能够满足倒喷、斜侧喷等多方位的喷射要求。
本发明的有益效果是：该喷雾枪由于设置有倒喷装置，使得整个喷雾枪结构设计新颖，紧凑合理，能够实现正喷、倒喷、斜侧喷等多功能，而且稳定性好，密封效果好；喷雾枪处于正立、倒置或360度斜侧位置均能够实现喷射功能，实现了喷雾枪在正位、倒位、各个角度的斜侧位都能够使用的目的；而且该喷雾枪在的出液口设有泡沫头帽，实现喷雾、泡沫喷等多功能不同形状喷射的要求，满足了不同的客户对喷射形状不同的多功能要求，同时在喷嘴部设置有止转结构，有效避免了因儿童误操作而造成的不安全因素的问题，从而保证了喷 雾枪使用的安全性。该喷雾枪还中扳机与活塞之间设置防溢卡扣，杜绝了喷雾枪在运输过程中扳机受力使液体容器内部的液体溢出，造成环境污染现象的发生。而且该喷雾枪的启闭装置的设置，使得整个喷雾枪，密封性能好，液体不易外溢、外流，整体密封性、快速断流能力和隔绝效果等方面性能好；斜置、倾倒、倒置均不会引起密封失效。
附图说明
图1是本发明喷雾枪的一种结构示意图；
图2是本发明喷雾枪的一种剖视图；
图3是本发明倒喷装置的一种结构示意图；
图4是本发明倒喷装置另一角度的一种结构示意图；
图5是本发明中倒喷装置一种剖视结构示意图；
图6是本发明中喷嘴部和泡沫头帽连接的一种结构示意图；
图7是本发明中防溢卡扣的一种结构示意图；
图8是本发明中扳机连接件和活塞连接件的一种结构示意图；
图9是本发明中枪体的一种结构示意图；
图10是本发明中枪体与喷嘴部连接的一种结构示意图；
图11是本发明中启闭装置的一种结构示意；
图12是本发明中枪体与防溢卡扣以及倒喷装置等连接的一种结构示意图；
图13是本发明喷雾枪正喷喷雾时的一种结构示意图；
图14是本发明喷雾枪正喷上液的一种结构示意图；
图15是本发明雾枪倒喷喷雾时的一种结构示意图；
图16是本发明喷雾枪倒喷上液的一种结构示意图；
图中：1、倒喷装置，11、阀体，12、正喷通道，121、喇叭口，122、卡接环槽，13、倒喷阀，131、倒喷阀体，132、倒喷阀球，133、倒喷通道，134、进液口，135、密封腔面，136、插接连接结构，14、回气阀，141、回气阀体，142、回气阀球，143、回气通道，144、端回气口，145、上部密封腔面，146、下部扣位，15、插管通道；
2、枪体；
20、喷嘴部，200、液流道，201、出液口，202、卡接槽，203、卡扣结构；
21、压力腔部，210、活塞缸体，211、压力腔，212、活塞，2120、气孔，2121、第一密封位，2122、第二密封位；
22、压液道；
23、液体连通部，230、缸通管，231、三层连接壁，2310、内层壁，2311、中间壁，2312、外层壁，2313、密封卡接结构，2314、倾斜壁，232、底座密封连接内腔，233、底座密封插卡外腔，234、回气孔，235、气体通道；
24、启闭装置，240、底座，241、弹性密封座，2410、插接密封喇叭管，2411、密封腔，2412、环形密封体，242、密封阀，243、阶梯启闭腔，244、内侧插接环壁，245、外侧插接接环壁，246、密封结构，247、防脱结构，248、过气过液口；A、出液空间；
25、泡沫头帽，250、帽座，251、泡沫网；
26、复位件，260、复位弹条，261、前端卡条，262、后端弧形卡条；
27、止转结构，270、止转块，271、止转槽；
28、扳机，280、扳机连接件，281、活塞连接件，282、卡钩槽，283、连接杆，284、固定体，285、转动槽，286、转动嵌槽；
29、防溢卡扣，290、卡环，291、插卡体，292、环扣；
30、进液通道，31、插接斜面，32、卡接凸起，33、回气阀座，34、回气口，35、倒喷阀座；
4、罩体，40、上罩体，41、，下罩体；
5、内螺纹连接件；
6、吸液管；
7、液体容器；
8、喷液通道；
9、密封圈。
具体实施方式
下面通过具体实施例并结合附图对本发明的技术方案作进一步详细的说明。本发明所说的左右指相对于正喷时，喷雾枪喷嘴部垂直于人体而言的，上下是指喷雾枪正立位置的上部和下部而言的。
实施例1：
在图1、图2所示的实施例中，一种喷雾枪，包括：
枪体2，所述的枪体内部设置有相互连通的喷液通道8和压液道22；
喷嘴部20，转动连接在枪体2上用于打开或关闭喷液通道8并且实现喷雾或泡沫喷射功能的部件；
压力腔部21，设置在枪体2上并且平行于喷液通道8设置在喷液通道8下方用于实现空气压缩的部位；所述的压力腔部21包括活塞缸体210、压力腔211和活塞212，所述的活塞212 滑动密封设置在压力腔211内部并且通过压力腔211内部的气压变化实现喷雾枪的抽吸动作；其中，所述的活塞212上沿轴线方向自活塞外部向中部位置开设有气孔2120；还包括，
液体连通部23，一体设置在枪体2的下部用于实现上液和过液的部位；
其中，所述的液体连通部23内部设置有启闭装置24；
所述的启闭装置24朝向液体容器的一侧密封插接有一实现喷枪正喷、倒喷以及360度斜侧喷功能的倒喷装置1；
所述的压力腔212的腔底朝向液体连通部一侧的侧壁上设置有分别连通压液道22和启闭装置24的过气过液口248。
如图3、图4、图5所示，倒喷装置1包括一与启闭装置插卡式连接具有喷枪正喷、倒喷、斜侧喷功能的阀体11；所述的阀体11上一体设置有正喷通道12、倒喷阀13、回气阀14和插管通道15；所述的正喷通道12、倒喷阀13和插管通道15内部连通形成阀体三通结构。
倒喷阀13包括倒喷阀体131和倒喷阀球132；所述的倒喷阀体131内部设置有倒喷通道133；所述的倒喷阀球132活动设置在倒喷阀体131内部用于实现倒喷阀体131内部倒喷通道133的通断；所述的正喷通道12与倒喷通道133在正喷通道12的进口端处连通，所述的插管通道15沿正喷通道12和倒喷通道133连通处的轴线方向向下延伸设置，从而形成阀体三通结构；所述的倒喷通道133的上端设置有插接连接结构136。
倒喷通道133上设置有至少一个进液口134，所述的进液口134开设在倒喷通道133的侧壁上；所述的正喷通道12沿轴向设置成垂直通道，所述的正喷通道12的上部端口设有喇叭口121，所述的喇叭口121下方的内壁上设置有卡接环槽122。
倒喷通道133下端与正喷通道12连通处设置有密封腔面135，正喷时，倒喷阀球132抵接在密封腔面135上形成密封结构，倒喷通道133被密闭；倒喷或斜侧喷时，倒喷阀球132远离密封腔面135，从而打开倒喷通道133。
回气阀14包括回气阀体141和活动设置在回气阀体141内部的回气阀球142，所述的回气阀体141内部设置有回气通道143；所述的回气阀球142沿回气阀体141内部的回气通道143往复运动打开或关闭回气通道143。
回气通道143的上部通道直径小于下部通道直径并且在下部通道与上部通道连通处设置有上部密封腔面145，所述的回气通道143的下端回气口144处设置有下部扣位146；当正喷或倒喷以及斜侧喷时，所述的回气阀球142在上部密封腔面145和下部扣位146之间切换式实现回气通道的启闭。
活塞朝向压力腔211内部一端的外壁上分别设置有用于密封或打开气孔2120的第一密封位2121和用于密封或打开过气过液口248的第二密封位2122。
如图6所示，喷嘴部20上设置有泡沫头帽25；所述的泡沫头帽25包括帽座250和设置在帽座上的泡沫网251。
如图10所示，喷嘴部20上设置有出液口201，所述的喷嘴部20的内部设有多个连通出液口201和喷液通道8的液流道200；所述的出液口201的外侧设置有卡接槽202，所述的卡接槽202内侧设置有卡扣结构203；所述的泡沫头帽25转动连接在卡接槽202上并且可打开或盖住出液口201实现喷雾喷或泡沫喷。
如图1所示，喷嘴部20上还设置有止转结构27。
如图2所示，喷雾枪还设置有扳机28，所述的扳机28通过一扳机连接件280和一活塞连接件281与活塞212柔性连接，并且通过扳机28的扳动压缩扳机连接件280和活塞连接件281，从而带动活塞的往复运动。
扳机28和活塞212之间还活动卡接有一防溢卡扣29；所述的防溢卡扣29一端插卡在活塞缸体210的外部，所述的防溢卡扣29另一端卡接在扳机29上；所述的防溢卡扣29包括一体设置的卡环290、插卡体291和环扣292，所述的插卡体291上设置有与扳机29卡接的卡钩。
如图12所示，扳机28与压力腔部21之间还设置有复位件26，所述的复位件26为一体式构件，包括左右对称设置的复位弹条260、前端卡条261和后端弧形卡条262，所述的复位件26的前端与扳机28卡接，所述的复位件26的后端卡接在活塞缸体外壁与液体连通部23之间。
如图10所示，液体连通部23同轴线设置有缸通管230和三层连接壁231，所述的缸通管230垂直于活塞缸体210的轴线设置并且通过过气过液口248与压力腔211连通；所述的三层连接壁231包括内层壁2310、中间壁2311和外层壁2312；所述的内层壁2310、中间壁2311和外层壁2312的下端面依次递增设置；所述的内层壁2310、中间壁2311和外层壁2312由内向外由上向下环设形成底座密封连接内腔232和底座密封插卡外腔233。
所述的底座密封连接内腔232的上部与活塞缸体210连接处开设有回气孔234，所述的活塞上的气孔2120、回气孔234和底座密封连接内腔232以及倒喷装置共同形成气体通道235；所述的内层壁2310的外壁上环设有密封卡接结构2313；所述的外层壁2312的内侧设置有倾斜壁2314。
如图11所示，所述的启闭装置24包括底座240、弹性密封座241和密封阀242，所述 的底座240的上座面上设置有阶梯启闭腔243，与阶梯启闭腔243同轴线环设有内侧插接环壁244和外侧插接接环壁245，所述的内侧插接环壁244的内壁上环设有密封结构246，所述的外侧插接环壁245的外壁上设置有防脱结构247。
所述的密封阀242活动密封设置在弹性密封座241内部，所述的弹性密封座241设置在底座240的内侧插接环壁形成的腔体内部并可上下作弹性变形运动，并与底座240的上座面密封压接。
所述的底座240的下座面上与阶梯启闭腔243同轴线设置有进液通道30，所述的进液通道30的外壁的下端设置有插接斜面31，所述的进液通道30的外壁的中部设置有卡接凸起32；平行于进液通道30的轴线设置有回气阀座33，所述的回气阀座33所在的内侧插接环壁244和外侧插接环壁245之间的底座240上开设有回气口34；进液通道30设有回气阀座33的另一侧的底座上设置有倒喷阀座35。
该喷雾枪，其主要包括一枪体2、用于将枪体罩设在内部且实现美化外观的罩体4，用于实现与液体容器螺纹连接的内螺纹连接件5，还包括用于抽吸液体的吸液管6，该喷雾枪可以连接在任何形状的液体容器7上使用。罩体包括上罩体40和下罩体41；上罩体与下罩体卡扣式连接；内螺纹连接件5活动连接在枪体2上。该喷雾枪中，罩体、喷嘴部、枪体、复位件、扳机、密封阀、底座、内螺纹连接件、倒喷装置、卡扣等主要部件全部采用PP材料制作，实现了全塑制作，能够全部回收利用，环保无污染。
该喷雾枪主要是设有一倒喷装置1，而倒喷装置1，包括：
阀体11，与喷雾枪底座插卡式连接用于实现喷雾枪正喷、倒喷、斜侧喷功能的阀体；所述的阀体11上设置有正喷通道12、倒喷阀13和回气阀14；
其中，所述的倒喷阀13包括倒喷阀体131和倒喷阀球132；所述的倒喷阀球132活动设置在倒喷阀体131内部用于实现倒喷阀体131内部倒喷通道133的通断；
所述的回气阀14包括回气阀体141和活动设置在回气阀体141内部的回气阀球142，所述的回气阀球142沿回气阀体141内部的回气通道143往复运动打开或关闭回气通道；
其中，所述的正喷通道12与倒喷阀体内部的倒喷通道133在正喷通道的进口端处连通，并且在正喷通道12和倒喷通道133连通处沿轴线方向向下延伸设置有插管通道15，从而形成阀体三通结构。
如图5所示，阀体11为一体式结构设置的柔性材料构件；所述的正喷通道12、倒喷通道133和回气通道143的轴线相互平行设置，并且倒喷通道133与回气通道143分设在正喷通道12的两侧；所述的倒喷通道133的进液口134开设在倒喷通道133的侧壁上，所述的 回气通道143的下端回气口144所在的平面低于倒喷通道进液口134的高度；所述的正喷通道12沿轴向设置成垂直通道，所述的正喷通道12的上部端口设有喇叭口121，所述的喇叭口121下方的内壁上设置有卡接环槽122。阀体采用一体式柔性材料构成制成，采用柔性材料制作，可以实现全塑环保设计，阀体可以进行回收利用，而且一体式结构制作方便，更方便保证在使用过程中的密封性能，在设计时将正喷通道、倒喷通道和回气通道平行设计，使用时各功能能够互不影响，而且这样的设计结构更加合理，制作更加方便，为了保证在倒喷使用过程中密封性，使气体不会进入倒喷通道，从而保证上液的手感以及喷液效果，将回气口的下端回气口设计高于倒通道的进液口，这样在倒喷斜侧喷过程中气体只能够通过回气通道进入回气阀，而不会时入倒喷通道。正喷通道垂直设置且上部端口设置有喇叭口、同时在内壁上设置卡接环槽是为了方便与喷雾枪上的底座插卡式连接，实现快速密封插接，使操作更方便快捷。
倒喷通道133下端与正喷通道12连通处设置有密封腔面135，正喷时，倒喷阀球132抵接在密封腔面135上形成密封结构，倒喷通道133被密闭；所述的倒喷通道133的上端设置有插接连接结构136；所述的回气通道143的上部通道直径小于下部通道直径并且在下部通道与上部通道连通处设置有上部密封腔面145，所述的回气通道143的下端回气口144处设置有下部扣位146；当正喷或倒喷时，所述的回气阀球142在上部密封腔面145和下部扣位146之间切换式密封。下部扣位的设置是为了对回气阀球的限位，当倒喷装置处于正位使用时，回气阀球142处于下部扣位146处，下部扣位对称设置有两个，当回气阀球142与下部扣位146配合时，下端回气口144的其他部位仍然与液体容器内部连通，以方便空气进入液体容器内部。
该倒喷装置，在阀体上设置有正喷通道、倒喷阀和回气阀，在将该倒喷装置应用到喷雾枪上使用时，由于设置有倒喷阀，倒喷阀包括倒喷阀体和倒喷阀，且正喷通道与倒喷阀体内部的倒喷通道在正喷通道的进口端处连通，并且在正喷通道和倒喷通道连通处沿轴线方向向下延伸设置有插管通道，从而形成阀体三通结构，三通结构使得正喷或倒喷斜侧喷时能够两两通道连通；当正喷时，倒喷阀球密封在倒喷通道与正喷通道连通处阻断倒喷通道，液体通过插管通道进入正喷通道最后喷出，不会影响喷雾枪的正常使用；而当需要倒喷或斜侧喷(可以在360度任意角度进行斜侧喷)时，喷雾枪处于倒置或斜侧位置，倒喷阀球打开倒喷通道与正喷通道的连通处，液体通过倒喷通道进入然后经正喷通道后喷出，能够实现倒喷和斜侧喷功能，从而实现了喷雾枪在正位、倒位、各个角度的斜侧位都能够使用的功能；该倒喷装置只要有液体，都可以通过倒喷的方式经倒喷阀喷出，使液体容器内部的液体能够全 部利用，而无残留。
如图6所示，所述的喷嘴部20的出液口201设置有泡沫头帽25，泡沫头帽25包括帽座250和设置在帽座上的泡沫网251，泡沫网采用PP材料网，泡沫网251的网目选择60-100目为佳，优选80目作为常用网目，具体网目的设置，根据泡沫效果而定；所述的喷嘴部20设置有卡接槽202，所述的卡接槽202内侧设置有卡扣结构203；所述的泡沫头帽25与喷嘴部20一体式转动设置，通过泡沫头帽25自身的弹性连接在喷嘴部20的卡接槽202上并且可打开或盖住出液口实现喷雾喷或泡沫喷或线状喷；所述的喷嘴部20设置有止转结构27，止转结构为设置在上罩体40上的止转块270和设置在喷嘴部20上的止转槽271；喷嘴部20的四周分别设置有止转槽271，当喷嘴部处于关闭状态或打开状态时，止转块270与止转槽271配合以限制喷嘴部的转动，当需要打开喷嘴部时，用力转动喷嘴部则可以使止转块与止转槽脱开，这样能够有效避免儿童打开喷嘴部，从而保证了使用安全。为了实现多功能不同形状喷射的要求，在喷嘴部的出液口设置泡沫头帽25，泡沫头帽直接与喷嘴部一体式设置，通过其塑料的柔性转动连接在喷嘴部的卡接槽上，当需要进行喷雾形状的喷射时，向上打开翻转泡沫头帽，液体以喷雾的形状从出液口喷出；而当需要形成泡沫形状的喷射时，向下翻盖泡沫头帽25，将泡沫头帽卡扣在卡接槽上，使其覆盖住出液口，此时，液体从出液口经泡沫头帽喷射出时是呈泡沫状，满足了不同形状喷射的要求，而且对喷嘴部的整体形状不会产生影响。喷嘴部20内还设有若干个液流道200，液流道200的进口与喷液通道8的出液口连接，出口与喷嘴部出液口201相连；所述液流道200设有至少两个，且喷嘴部20上设有与液流道200数量相同的通档位槽和断档位槽，枪体2上设有用于卡在通档位槽或卡在断档位槽中的凸体；在出液口201周向上，通档位槽和断档位槽依次相互间隔等角分布；以两个液流道200为例，凸体卡在一个通档位槽中时，一个液流道200连通至喷液通道8的出液口，另一个液流道200和出液口201的连接处受封壁阻断，同理凸体卡在另一个通档位槽时，另一个液流道200连通至喷液通道8的出液口，凸体可与通档位槽、断档位槽相互配合，提升定位效果，保障工作过程中的稳定性或保障密封定位效果。本实施例中，通档位槽和断档位槽可以设置四个档位，其中一档设置为喷雾档位，三档设置为喷线档位，而二档和四档为关闭档位，当选择泡沫喷时，选择一档或三档其区别在于是喷粗泡还是细泡，当选择一档位时则喷出的是细泡，而选择三档位时则喷出的是粗泡。
还设置有扳机28，所述的扳机28通过一扳机连接件280和一活塞连接件281与活塞212柔性连接；并且通过扳机28的扳动压缩扳机连接件280和活塞连接件281，从而带动活塞的往复运动；扳机28上设置卡钩槽282；扳机连接件280和活塞连接件281分别为一弹性 球体，如图8所示，扳机连接件280和活塞连接件281通过一连接杆283连接为一体，而且采用PP材料制成，还包括一固定体284，固定体284上设置有转动槽285，活塞连接件281转动嵌设在转动槽285内部；固定体284与活塞212内壁卡接连接；扳机靠近活塞缸体的一侧的内侧设置有转动嵌槽286，扳机连接件280转动嵌设在转动嵌槽286。在使用过程中可以根据扳机的使力方向进行转动式调节，避免了刚性活塞连杆在使用过程中容易偏移，导致密封性能差的问题。
在扳机28与压力腔部21之间还设置有复位件26，如图9所示，复位件26为一体式构件，复位件为一体式PP材料构件，包括沿枪体左右对称设置的复位弹条260和前端卡条261、后端弧形卡条262，复位件26的前端与扳机28卡接，复位件26的后端卡接在活塞缸体外壁与液体连通部23上部之间。在使用时，扳动扳机，扳机压缩复位件26，推动活动向内部运动；松开扳机，复位件26在弹力的作用下带动扳机复位，复位件26采用一体式注塑件，制作方便，利于回收环保。
在复位过程中，活塞连接件280和扳机连接件281所形成的配合效果相较于常见的活塞杆而言，普通的活塞杆通常直接连接至活塞底部，长度较大，部分刚性活塞杆在长期使用过程中存在容易老化断裂，并且扳机转向过程中刚性活塞杆本身受到弯折力的影响，使得扳机和活塞之间的配合使用效果较差；还有部分弹性活塞杆则存在取向性较差，易倾斜、压缩带动活塞的运动性能较差等问题。而本发明的活塞连接件280和扳机连接件281相互配合时，首先较短的连接杆283不易老化断裂，且具有良好的取向性，而活塞连接件280和扳机连接件281采用弹性球体，具有转动能力，将本应作用在刚性柱状体之上的弯折力通过转动进行转化，使其弹性球体自身受力变形，由于弹性球体本身具有良好的弹性和韧性，受力影响小、不会对球体本身造成损伤，长期使用仍能够保持良好的形状特征和力学性能。
所述的扳机28和活塞212之间还活动卡接有一防溢卡扣29；如图12所示，所述的防溢卡扣29一端插卡在活塞缸体210的外部，所述的防溢卡扣29另一端卡接在扳机28上；如图7所示，所述的防溢卡扣29包括一体设置的卡环290和插卡体291以及环扣292，所述的插卡体291上设置有与扳机卡接的卡钩293，卡钩293与卡钩槽282对卡式连接。扳机是喷雾枪的操作部件，通过扳动扳机可以带动活塞往复运动，从而实现压力腔内部压力的增减，进而实现抽吸动作。而在扳机与活塞之间设置防溢卡扣，是为了保证喷雾枪在运输过程中扳机受力使液体容器内部的液体溢出，造成环境污染。
如图10所示，所述的液体连通部23同轴线设置有缸通管230和三层连接壁231，所述的缸通管230垂直于活塞缸体210的轴线设置并且在靠近活塞缸体210底壁处与通过一过 气过液口248与压力腔211连通；所述的三层连接壁231包括内层壁2310、中间壁2311和外层壁2312；所述的内层壁2310、中间壁2311和外层壁2312的下端面依次递增设置；所述的内层壁2310、中间壁2311和外层壁2312由内向外由上向下环设形成底座密封连接内腔232和底座密封插卡外腔233，底座密封连接内腔232的上部与活塞缸体210连接处开设有回气孔234，活塞缸体210外部、活塞上的气孔2120、回气孔234和底座密封连接内腔232以及倒喷装置上的回气通道143共同形成气体通道235，所述的内层壁的外壁上环设有密封卡接结构2313；所述的外层壁的内侧设置有倾斜壁2314。在液体连通部设置缸通管和三层连接壁，缸通管的设置是为了方便启闭装置的设置，从而连通或阻断压液道，实现喷射或阻断喷射的功能；而三层连接壁的设置是为了方便启闭装置的插卡式密封连接。
如图11所示，所述的启闭装置24包括底座240、弹性密封座241和密封阀242，所述的底座240的上座面上设置有与缸通管230同轴线设置的阶梯启闭腔243，所述的阶梯启闭腔243同轴线环设有内侧插接环壁244和外侧插接接环壁245，所述的内侧插接环壁244的内壁上环设有密封结构246，所述的外侧插接环壁245的外壁上设置有防脱结构247；所述的密封阀242活动密封设置在弹性密封座241内部，所述的弹性密封座241弹性压设在底座240的内侧插接环壁形成的腔体内部并与底座240的上座面密封压接；弹性密封座241上部设置有插接密封喇叭管2410，插接密封喇叭管2410的外壁与缸通管230的内壁弹性密封连接；弹性密封座241沿轴线设置有密封腔2411，密封阀242活动密封设置在密封腔2411内部并沿密封腔2411上下运动，弹性密封座241的下部设置有环形密封体2412，环形密封体2412的外壁与内层壁2310的内壁密封连接，缸通管230内壁以及弹性密封座上插接密封喇叭管2410的外壁以及环形密封体2412的内壁之间在液体连通部形成的空间为出液空间A。启闭装置设置有底座、弹性密封座和密封阀，底座与三层连接壁之间形成相互插卡式密封连接的结构，既方便安装同时还能够保证插卡后的密封性能，弹性密封座在使用过程中在压力腔压力的作用下向下压缩或弹性复位，从而使得液体容器与压液道连通或阻断，同时，弹性密封座上的密封阀也会在活塞抽吸动作过程中向上打开或向下关闭弹性密封座上的液体通道，使液体向上流出或阻断液体的流出，由于启闭装置中的底座、弹性密封座和密封阀均采用柔性材料制作，实现了全塑制作，能够方便整体的回收利用，且在使用过程中柔性材料的灵敏性能好，使得启闭效果更加快捷，复位快，液体不易外溢、外流，整体密封性、快速断流能力和隔绝效果等方面性能好。
所述的底座240的下座面上与阶梯启闭腔243同轴线设置有进液通道30，所述的进液通道30的外壁的下端设置有插接斜面31，所述的进液通道30的外壁的中部设置有卡接凸起 32；平行于进液通道30的轴线设置有回气阀座33，所述的回气阀座33所在的内侧插接环壁和外侧插接接环壁之间的底座上开设有回气口34；进液通道30设有回气阀座33的另一侧的底座上设置有倒喷阀座35。底座的上述结构是为了方便倒喷装置的快速插卡式密封连接，既能够保证连接的快捷方便，同时还能够保证密封效果，使得液体容器与外界隔绝效果好，而且斜置、倾倒、倒置均不会引起密封失效，同时还能够满足倒喷、斜侧喷等多方位的喷射要求。
在底座240与内螺纹连接件5之间还设置有密封圈9，以实现对液体容器内部液体的密封，防止液体的泄漏。
该喷雾枪在使用时，与液体容器7通过内螺纹连接件5螺纹连接在一起，转动喷嘴部20，使其处于打开状态，并且根据需要选择是喷雾还是泡沫或者是喷线，若选择喷雾功能的，则将泡沫头帽25处于打开状态。
如图13、图14所示，当正喷时，将液体容器7与喷雾枪一起处于正立位置，此时，倒喷阀球132处于密封腔面135处，关闭倒喷通道133，液体只能通过正喷通道12吸入，而回气阀球142处于下部扣位146处，将回气通道143密封，拔掉防溢卡扣29，扳动扳机28，扳机28带动扳机连接件280和活塞连接件281进而推动活塞212向压力腔211内部运动，压缩压力腔211内部的空气，压缩空气从压力腔通过过气过液口248进入到缸通管230内部，推动弹性密封座241向下变形运动，从而让出液空间A，出液空间与喷液通道8与喷嘴部外部连通，此时，液体容器7内部的气压大于出液空间处的气压，密封阀242在内部气压的作用下向上运动，打开液体通道，液体容器内部的液体通过吸液管6被吸入到正喷通道12中，经阶梯启闭腔243进入到出液空间A，后经压液道22和喷液通道8，最后通过液流道200和出液口201呈喷雾状喷出，或最后经泡沫网251呈泡沫状喷出。此时，由于液体喷出，液体容器内产的压力变小，在扳机板进，活塞第一密封位2121超过枪体的回气孔234后对回气孔的密封消失，此时，外部的空气通过活塞上的气孔2120进入到回气孔234，然后通过气体通道235进入到液体容器7内部使得液体容器7内部气压与外部大气压一致(见图13)；松开扳机28，扳机28在复位件26的作用下复位，液体容器7内部的液体通过吸液管6，以正喷通道12进入出液空间A，完成新一次上液(见图14)，重复上述步骤，则实现不断的喷射。
如图15、图16所示，当倒喷或斜侧喷时，将液体容器7与喷雾枪一起倒置或任意角度斜侧置，此时，倒喷阀球132处于打开倒喷通道133的状态，而回气阀球142处于上部密封腔面145处，将回气通道143密封，拔掉防溢卡扣29，扳动扳机28，扳机28带动扳机连接件280和活塞连接件281进而推动活塞212向压力腔211内部运动，压缩压力腔211内部 的空气，压缩空气从压力腔通过过气过液口248进入到缸通管230内部，推动弹性密封座241向下变形运动，从而让出液空间A，出液空间A与喷液通道8与喷嘴部外部连通，此时，液体容器7内部的气压大于出液空间处的气压，密封阀242在内部气压的作用下向上运动，打开液体通道，液体容器内部的液体通过倒喷通道进入到正喷通道12中，经阶梯启闭腔243进入到出液空间A，后经压液道22和喷液通道8，最后通过液流道200和出液口201呈喷雾状喷出，或最后经泡沫网251呈泡沫状喷出。此时，由于液体喷出，液体容器内产的压力变小，在扳机板进，活塞第一密封位2121超过枪体的回气孔234后对回气孔的密封消失，此时，外部的空气通过活塞上的气孔2120进入到回气孔234，然后通过气体通道235进入到液体容器7内部，在倒喷装置处由于外部气压高于内部气压，气压将回气阀球142顶起，使空气进入液体容器内部，使得液体容器7内部气压与外部大气压一致；松开扳机28，扳机28在复位件26的作用下复位，此时气体通道235通过活塞上的活塞第一密封件2121阻断，同时，回气阀球142回落到上部密封腔面145处并与上部密封腔面密封配合进一步阻断气体通道235；液体容器7内部的液体通过通过倒喷通道进入到正喷通道12中，再从正喷通道12进入出液空间A，完成新一次上液，重复上述步骤，则实现不断的喷射。
该喷雾枪，通过设置倒喷装置，实现了喷雾枪的正喷、倒喷及斜侧喷功能，由于倒喷装置上设置有阀体三通结构，因此，当喷雾枪正喷时，倒喷阀球密封在倒喷通道与正喷通道连通处阻断倒喷通道，液体通过插管通道进入正喷通道最后喷出，不会影响喷雾枪的正常使用；而当需要倒喷或斜侧喷时，喷雾枪处于倒置或斜侧位置，倒喷阀球打开倒喷通道与正喷通道的连通处，液体通过倒喷通道进入然后经正喷通道后喷出，能够实现倒喷和斜侧喷功能。而且该喷雾枪，密封性能好，液体不易外溢、外流，整体密封性、快速断流能力和隔绝效果等方面性能好；液体容器装配该喷雾枪后，液体容器与外界隔绝效果优异，斜置、倾倒、倒置均不会引起密封失效。
该喷雾枪，由于在倒喷装置上设置有回气阀，无论是采用正喷还是采用倒喷以及360度角任意斜侧喷时，在喷雾或者喷泡沫后，能够及时进行液体容器内外气体的隔断，在扳机按压到底、释放后的复位过程中，隔断复位迅速，无空气进入喷液通道8，从而保证无气体进入到液体容器内部，避免了现有技术中喷液通道8内少量液体呈滴水状流出现象的发生，该喷雾枪单次喷雾或喷泡沫或喷线结束后，扳机复位过程快速，能够实现快速的复位和隔断，避免了残留滴水现象的发生。
上述实施例仅是本发明其中的一分部实施例，而不是全部实施例。同时，基于本发明中所述的实施例，本领域普通技术人员在没有做出创造性劳动的前提下，在本申请的技术方 案的基础上所获得的所有其他实施例，都应当属于本发明保护的范围。

Claims (19)

  1. 一种喷雾枪，其特征在于包括：
    枪体(2)，所述的枪体内部设置有相互连通的喷液通道(8)和压液道(22)；
    喷嘴部(20)，转动连接在枪体(2)上用于打开或关闭喷液通道(8)并且实现喷雾或泡沫喷射功能的部件；
    压力腔部(21)，设置在枪体(2)上并且平行于喷液通道(8)设置在喷液通道(8)下方用于实现空气压缩的部位；所述的压力腔部(21)包括活塞缸体(210)、压力腔(211)和活塞(212)，所述的活塞(212)滑动密封设置在压力腔(211)内部并且通过压力腔(211)内部的气压变化实现喷雾枪的抽吸动作；其中，所述的活塞(212)上沿轴线方向自活塞外部向中部位置开设有气孔(2120)；还包括，
    液体连通部(23)，一体设置在枪体(2)的下部用于实现上液和过液的部位；
    其中，所述的液体连通部(23)内部设置有启闭装置(24)；
    所述的启闭装置(24)朝向液体容器的一侧密封插接有一实现喷枪正喷、倒喷以及360度斜侧喷功能的倒喷装置(1)；
    所述的压力腔(212)的腔底朝向液体连通部一侧的侧壁上设置有分别连通压液道(22)和启闭装置(24)的过气过液口(248)。
  2. 根据权利要求1所述的一种喷雾枪，其特征在于：所述的倒喷装置包括一与启闭装置插卡式连接具有喷枪正喷、倒喷、斜侧喷功能的阀体(11)；所述的阀体(11)上一体设置有正喷通道(12)、倒喷阀(13)、回气阀(14)和插管通道(15)；所述的正喷通道(12)、倒喷阀(13)和插管通道(15)内部连通形成阀体三通结构。
  3. 根据权利要求2所述的一种喷雾枪，其特征在于：所述的倒喷阀(13)包括倒喷阀体(131)和倒喷阀球(132)；所述的倒喷阀体(131)内部设置有倒喷通道(133)；所述的倒喷阀球(132)活动设置在倒喷阀体(131)内部用于实现倒喷阀体(131)内部倒喷通道(133)的通断；所述的正喷通道(12)与倒喷通道(133)在正喷通道(12)的进口端处连通，所述的插管通道(15)沿正喷通道(12)和倒喷通道(133)连通处的轴线方向向下延伸设置，从而形成阀体三通结构；所述的倒喷通道(133)的上端设置有插接连接结构(136)。
  4. 根据权利要求3所述的一种喷雾枪，其特征在于：所述的倒喷通道(133)上设置有至少一个进液口(134)，所述的进液口(134)开设在倒喷通道(133)的侧壁上；所述的正喷通道(12)沿轴向设置成垂直通道，所述的正喷通道(12)的上部端口设有喇叭口(121)，所述的喇叭口(121)下方的内壁上设置有卡接环槽(122)。
  5. 根据权利要求3所述的一种喷雾枪，其特征在于：所述的倒喷通道(133)下端与正喷通 道(12)连通处设置有密封腔面(135)，正喷时，倒喷阀球(132)抵接在密封腔面(135)上形成密封结构，倒喷通道(133)被密闭；倒喷或斜侧喷时，倒喷阀球(132)远离密封腔面(135)，从而打开倒喷通道(133)。
  6. 根据权利要求2所述的一种喷雾枪，其特征在于：所述的回气阀(14)包括回气阀体(141)和活动设置在回气阀体(141)内部的回气阀球(142)，所述的回气阀体(141)内部设置有回气通道(143)；所述的回气阀球(142)沿回气阀体(141)内部的回气通道(143)往复运动打开或关闭回气通道(143)。
  7. 根据权利要求6所述的一种喷雾枪，其特征在于：所述的回气通道(143)的上部通道直径小于下部通道直径并且在下部通道与上部通道连通处设置有上部密封腔面(145)，所述的回气通道(143)的下端回气口(144)处设置有下部扣位(146)；当正喷或倒喷以及斜侧喷时，所述的回气阀球(142)在上部密封腔面(145)和下部扣位(146)之间切换式实现回气通道的启闭。
  8. 根据权利要求1至7任意一项所述的一种喷雾枪，其特征在于：所述的活塞朝向压力腔(211)内部一端的外壁上分别设置有用于密封或打开气孔(2120)的第一密封位(2121)和用于密封或打开过气过液口(248)的第二密封位(2122)。
  9. 根据权利要求1至7任意一项所述的一种喷雾枪，其特征在于：所述的喷嘴部(20)上设置有泡沫头帽(25)；所述的泡沫头帽(25)包括帽座(250)和设置在帽座上的泡沫网(251)。
  10. 根据权利要求9所述的一种喷雾枪，其特征在于：所述的喷嘴部(20)上设置有出液口(201)，所述的喷嘴部(20)的内部设有多个连通出液口(201)和喷液通道(8)的液流道(200)；所述的出液口(201)的外侧设置有卡接槽(202)，所述的卡接槽(202)内侧设置有卡扣结构(203)；所述的泡沫头帽(25)转动连接在卡接槽(202)上并且可打开或盖住出液口(201)实现喷雾喷或泡沫喷。
  11. 根据权利要求1至7任意一项所述的一种喷雾枪，其特征在于：所述的喷嘴部(20)上还设置有止转结构(27)。
  12. 根据权利要求1至7任意一项所述的一种喷雾枪，其特征在于：所述的喷雾枪还设置有扳机(28)，所述的扳机(28)通过一扳机连接件(280)和一活塞连接件(281)与活塞(212)柔性连接，并且通过扳机(28)的扳动压缩扳机连接件(280)和活塞连接件(281)，从而带动活塞的往复运动。
  13. 根据权利要求12所述的一种喷雾枪，其特征在于：所述的扳机(28)和活塞(212)之间还活动卡接有一防溢卡扣(29)；所述的防溢卡扣(29)一端插卡在活塞缸体(210)的外 部，所述的防溢卡扣(29)另一端卡接在扳机(29)上；所述的防溢卡扣(29)包括一体设置的卡环(290)、插卡体(291)和环扣(292)，所述的插卡体(291)上设置有与扳机(29)卡接的卡钩。
  14. 根据权利要求12所述的一种喷雾枪，其特征在于：所述的扳机(28)与压力腔部(21)之间还设置有复位件(26)，所述的复位件(26)为一体式构件，包括左右对称设置的复位弹条(260)、前端卡条(261)和后端弧形卡条(262)，所述的复位件(26)的前端与扳机(28)卡接，所述的复位件(26)的后端卡接在活塞缸体外壁与液体连通部(23)之间。
  15. 根据权利要求1至7任意一项所述的一种喷雾枪，其特征在于：所述的液体连通部(23)同轴线设置有缸通管(230)和三层连接壁(231)，所述的缸通管(230)垂直于活塞缸体(210)的轴线设置并且通过过气过液口(248)与压力腔(211)连通；所述的三层连接壁(231)包括内层壁(2310)、中间壁(2311)和外层壁(2312)；所述的内层壁(2310)、中间壁(2311)和外层壁(2312)的下端面依次递增设置；所述的内层壁(2310)、中间壁(2311)和外层壁(2312)由内向外由上向下环设形成底座密封连接内腔(232)和底座密封插卡外腔(233)。
  16. 根据权利要求15所述的一种喷雾枪，其特征在于：所述的底座密封连接内腔(232)的上部与活塞缸体(210)连接处开设有回气孔(234)，所述的活塞上的气孔(2120)、回气孔(234)和底座密封连接内腔(232)以及倒喷装置共同形成气体通道(235)；所述的内层壁(2310)的外壁上环设有密封卡接结构(2313)；所述的外层壁(2312)的内侧设置有倾斜壁(2314)。
  17. 根据权利要求1至7任意一项所述的一种喷雾枪，其特征在于：所述的启闭装置(24)包括底座(240)、弹性密封座(241)和密封阀(242)，所述的底座(240)的上座面上设置有阶梯启闭腔(243)，与阶梯启闭腔(243)同轴线环设有内侧插接环壁(244)和外侧插接接环壁(245)，所述的内侧插接环壁(244)的内壁上环设有密封结构(246)，所述的外侧插接环壁(245)的外壁上设置有防脱结构(247)。
  18. 根据权利要求17所述的一种喷雾枪，其特征在于：所述的密封阀(242)活动密封设置在弹性密封座(241)内部，所述的弹性密封座(241)设置在底座(240)的内侧插接环壁形成的腔体内部并可上下作弹性变形运动，并与底座(240)的上座面密封压接。
  19. 根据权利要求17所述的一种喷雾枪，其特征在于：所述的底座(240)的下座面上与阶梯启闭腔(243)同轴线设置有进液通道(30)，所述的进液通道(30)的外壁的下端设置有插接斜面(31)，所述的进液通道(30)的外壁的中部设置有卡接凸起(32)；平行于进液通道(30)的轴线设置有回气阀座(33)，所述的回气阀座(33)所在的内侧插接环壁(244) 和外侧插接环壁(245)之间的底座(240)上开设有回气口(34)；进液通道(30)设有回气阀座(33)的另一侧的底座上设置有倒喷阀座(35)。
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