CN110302910B - Spray gun with integrated function - Google Patents

Spray gun with integrated function Download PDF

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Publication number
CN110302910B
CN110302910B CN201810229139.1A CN201810229139A CN110302910B CN 110302910 B CN110302910 B CN 110302910B CN 201810229139 A CN201810229139 A CN 201810229139A CN 110302910 B CN110302910 B CN 110302910B
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CN
China
Prior art keywords
gun
spray gun
air inlet
screw rod
air
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CN201810229139.1A
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Chinese (zh)
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CN110302910A (en
Inventor
夏爱吾
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Qingyuan Yuqi Coating Technology Co., Ltd
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Qingyuan Yeshi Coating Industrial Technology Co ltd
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Priority to CN201810229139.1A priority Critical patent/CN110302910B/en
Publication of CN110302910A publication Critical patent/CN110302910A/en
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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
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/40—Filters located upstream of the spraying outlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
    • B05B7/2408—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle characterised by the container or its attachment means to the spray apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2478—Gun with a container which, in normal use, is located above the gun

Abstract

The invention provides a spray gun with integrated function, which comprises a gun body, a gun handle and a trigger, wherein the spray gun is provided with an air inlet and an air outlet, an upper pipeline and a lower pipeline which are mutually communicated are arranged inside the spray gun, the air inlet is arranged on the gun handle in a way of being communicated with the lower pipeline, the air inlet is connected with an external air pipe, the air outlet is arranged on the gun body in a way of being communicated with the upper pipeline, the part of the gun body close to the air inlet forms a control area, the part of the gun body far away from the air inlet forms a compression area, and the trigger is rotatably connected to the gun body; a filtering spray can is arranged above the compression area, a uniform leakage body is arranged below the filtering spray can, and a valve switch is arranged at the rear end of the gun body and is rotationally connected with the gun body; the rifle handle lower extreme is equipped with the rotation air inlet portion and is slow in order to solve current spray gun efficiency, easily extravagant air supply, and the inhomogeneous defect of spraying.

Description

Spray gun with integrated function
Technical Field
The invention relates to the technical field of paint spray guns, in particular to a spray gun with an integrated function.
Background
The paint spraying gun is a common spraying tool in the production industry, adopts a mode of generating an atomization effect by air pressure to spray paint on the surface of an object in a fog shape, has good spraying effect, uniform spraying and paint material saving, is the most widely spraying mode in the current industrial application, in the prior art, for example, the Chinese patent of CN105499002A, discloses a paint spraying gun with an adjustable fog surface, the paint spraying gun is convenient to hold and operate, has strong practicability and is the first choice of a plurality of operators, the paint spraying gun has the greatest characteristic that a wrench which is rotationally connected with the gun body is arranged on the gun body, the operators spray the paint in an atomization mode by squeezing the wrench, because impurities can not be generated or formed in the production and use processes of the paint, for example, the Chinese patent of CN206701550U, if the impurities and the paint particles can not be fully filtered, the paint particles and the impurities enter the interior of the paint spraying gun to damage the spray gun paint or block the oil path of the paint spraying gun, influence the use;
in addition when paint gets into spray gun inside, if can not even equivalent entering, will produce the section in spray gun inside, the incomplete face appears when leading to spraying paint, influences the effect of spraying paint to increase the cost of labor, simultaneously, spray gun need connect the air supply pipe at the stock of spray gun when using. The existing spray gun generally adopts a threaded air inlet connector, the spray gun is directly connected with an air source pipe, and in the using process, because the using position and the orientation of the spray gun need to be changed ceaselessly, the air inlet pipe is easy to twist and rebound, the flexibility of the spray gun during operation is influenced, air leakage is easy, and the spray gun is very inconvenient to use.
Moreover, when the paint spray gun is used, the valve switch also plays an important role, the existing valve switch can rotate at will, and therefore the valve can rotate excessively from an open state to an open state if an operator cares, and air source waste is caused.
Disclosure of Invention
The present invention has been made in view of the above problems, and it is an object of the present invention to provide a spray gun with integrated functions, which is convenient for users to overcome the disadvantages of the prior art. The spray gun comprises a gun body, a gun handle and a trigger, wherein an air inlet and an air outlet are arranged on the spray gun, an upper pipeline and a lower pipeline which are mutually communicated are arranged inside the spray gun, the air inlet is arranged on the gun handle in a way of being communicated with the lower pipeline, an external air pipe is connected to the air inlet, the air outlet is arranged on the gun body in a way of being communicated with the upper pipeline, the part of the gun body close to the air inlet forms a control area, the part of the gun body far away from the air inlet forms a compression area, and the trigger is rotatably connected to the gun body;
the spray gun also comprises
A filter watering can disposed on the gun body above the compression zone in a manner to fill the compression zone with filtered paint;
the uniform leakage body is arranged on the gun body between the compression area and the filtering spray can in a mode of uniformly filling the paint flowing out of the filtering spray can into the compression area;
the valve switch is arranged on the gun body close to one side of the control area in a mode of opening or closing a passage between the upper pipeline and the lower pipeline and is rotationally connected with the gun body;
the rotary air inlet part is arranged on the gun handle close to one side of the air inlet in a manner that the spray gun and the external air pipe can rotate mutually.
Preferably, the uniform leakage body comprises a shell and a uniform filter screen arranged in the shell;
the shell comprises a circular top surface, a plurality of fixed pillars vertically connected with the outer edge of the circular top surface and an annular discharge hole; the annular discharge hole is parallel to the round top surface and the circle center of the annular discharge hole is opposite to that of the round top surface; one end of the fixed strut is connected with the outer edge of the circular top surface, the other end of the fixed strut is connected with the annular discharge port, and the outer edge of the annular discharge port is provided with a plurality of layers of sealing snap springs;
even filter screen encloses into a cylinder, and the one end and the laminating of circular top surface of even filter screen cylinder, the other end and the laminating of the internal surface of cyclic annular discharge gate, just even filter screen cylinder is tangent with the fixed bolster.
Specifically, even equivalent when above-mentioned structure can make paint get into the compression zone can not produce the cutout when making paint transition to the compression zone, has avoided appearing because of the incomplete condition of spraying that the cutout leads to.
Preferably, the center of the circular top surface is provided with a feeding column in the direction away from the annular discharge port, and one end of the feeding column away from the circular top surface is provided with a spherical bulge.
Specifically, the spherical bulge can open the plug at the discharge port of the filtering spray can, and after the plug is opened, the paint in the filtering spray can flows into the uniform leakage body.
Preferably, be equipped with the through-hole on the body of a gun, the through-hole rotates the connection valve switch, the valve switch is including the switch spare of connecting tolerance adjust knob and O type circle simultaneously, O type circle cup joints tolerance adjust knob with the valve switch junction.
Specifically, this structure has guaranteed to set up valve switch in the control area, makes its control to the air supply promote the accuracy to this structure has guaranteed the accurate control to the air supply.
Preferably, the air volume adjusting knob is a hollow cylinder, a round protrusion is arranged at one end of the air volume adjusting knob, a square protrusion is arranged on the round protrusion, and an air hole is arranged on the outer wall of the other end of the air volume adjusting knob;
a rotating piece is arranged at one end of the switch piece and used for providing a holding point for twisting the valve control switch; the middle part of the switch part is a solid cylinder; a notch is arranged on one side of the outer wall of the switch part close to the rotating part; the lower part of the inner wall of the other end of the switch piece is provided with a circular groove, the circular groove is connected with the circular protrusion in a matched mode, the center of the circular groove is provided with a square groove, and the square groove is connected with the square protrusion in a clamped mode.
Specifically, above-mentioned structure has guaranteed the structural stability of valve switch body on the one hand, and on the other hand, this structure is more convenient for operating personnel's use, does not cause the waste of air supply afterwards.
Preferably, the slot is an arc slot, and when the air volume adjusting knob is connected with the switch piece, the air hole is aligned with the arc end face of any side of the arc slot.
Specifically, the structure of accurate location of valve switch has been realized to above-mentioned structure, has guaranteed can not lead to the valve from the open mode because of user's carelessness, and rotatory to the open mode has avoided the waste of air supply.
Preferably, the rotary air inlet part comprises a core pipe, an upper screw rod, a lower screw rod and a plurality of sealing rings;
the top end of the core pipe protrudes outwards, the lower part of the outer diameter of the core pipe is provided with external threads, the middle part of the outer diameter of the core pipe is provided with a plurality of sealing grooves, and the sealing rings are arranged in the sealing grooves;
the upper screw rod is hollow and is rotatably sleeved on the outer diameter of the core pipe, and the upper part of the outer side of the upper screw rod is provided with an external thread;
the lower screw rod is hollow, an internal thread is arranged at the upper part of the lower screw rod, and the lower screw rod is connected with the external thread at the lower part of the core pipe through the internal thread; and the lower part of the lower screw rod is provided with an external thread.
Specifically, the arrangement of the structure ensures that a user cannot bend or even break an external air pipe due to rotation of the paint spray gun when using the paint spray gun.
Preferably, the upper end of the inner diameter of the core tube is communicated with an external air source, and the top end of the outer diameter of the core tube protrudes outwards to block the top end face of the upper screw rod.
Preferably, the lower part of the outer surface of the upper screw is hexagonal, the bottom of the inner side of the upper screw is concave upwards, and the inner surface of the upper screw is smooth;
the upper portion of the outer surface of the lower screw rod is hexagonal, the top of the inner side of the lower screw rod protrudes upwards, and the bottom of the inner side of the upper screw rod is sunken upwards and is meshed with the upward protrusion of the bottom of the inner side of the lower screw rod.
Preferably, the filtering sprinkling can comprises an oil can body and a filtering net, the oil can body comprises an upper cylindrical part and a lower conical part, and the cylindrical part and the conical part are integrally connected; an oil pot cover is screwed on an opening at the upper end of the cylindrical part, and an oil pot nozzle is arranged in the center of the oil pot cover; a discharge hole is formed below the conical part;
the filter screen is arranged on the inner wall of the conical part of the oil can body, the edge of the filter screen is provided with a sealing ring, and the sealing ring is tightly attached to the inner wall of the conical part; the closed ring is provided with a plurality of convex handles on the upper surface.
Advantageous effects
1. The arrangement of the uniform leakage body ensures that the paint uniformly and equivalently enters a compression area of a paint spraying gun after passing through the filtering spray can, so that the uneven spraying caused by the injection of the paint from one side wall during the spraying can be avoided;
2. filter watering can, through set up the filter screen inside the kettle, can fully filter impurity and paint granule on the paint source, paint granule, impurity get into inside damage spray gun of spray gun or block up the spray gun oil circuit. Meanwhile, the filter screen is provided with the handle, so that the filter screen can be replaced and cleaned regularly, and the use is convenient; overall structure is simple, simple to operate and efficient to repeatedly wash the use, economic benefits is high, long service life.
3. Due to the arrangement of the valve switch, the accurate limiting of the valve is guaranteed, a user does not need to consider the rotation force during operation, and the operation efficiency is improved;
4. the mode of rotating the sleeve core pipe of the upper screw rod arranged at the air inlet part enables the joint to be connected with the air inlet pipe part and can rotate 360 degrees, so that the flexibility of the spray gun during use is improved; through setting up rubber seal, effectively prevent to connect gas leakage and reduce and connect the friction, the long life who connects.
Drawings
Fig. 1 is a schematic view showing a paint spray gun of the embodiment.
Fig. 2 is a schematic structural view showing a filtering watering can according to an embodiment.
Fig. 3 is a sectional view showing a front view side of the filtering watering can of the embodiment.
Fig. 4 is a schematic view showing a filter net of the embodiment.
FIG. 5 is a schematic view showing a homodrain of the embodiment.
FIG. 6 is a schematic view showing a front view side of a leak leveler in the embodiment.
Fig. 7 is a schematic diagram showing a valve switch of the embodiment.
Fig. 8 is a schematic view illustrating an air volume adjusting knob of an embodiment.
Fig. 9 is a front sectional view of the switch according to the embodiment.
Fig. 10 is a schematic view showing an internal structure of the paint spray gun according to the embodiment.
Fig. 11 is a schematic view showing a rotary intake portion of the embodiment.
Fig. 12 is a schematic view showing a combination structure of the rotary intake portion of the embodiment.
Description of the reference numerals
1 spray gun, 11 gun body, 12 gun handle, 13 cavity, 14 air inlet, 15 air outlet, 16 upper pipeline, 17 lower pipeline, 18 compression area and 19 control area.
2a filtering sprinkling can, 21 a kettle nozzle, 22 a kettle cover, 23 a filter screen, 24 a kettle body, 25 a discharge hole, 26 a feeding hole, 211 an air inlet hole, 221 a socket, 231 a sealing ring, 232 a handle and 233 through holes.
3 uniform leakage bodies, 31 shells, 32 uniform filter screens, 33 circular top surfaces, 34 fixed supporting columns, 35 annular discharge ports, 36 feeding columns, 37 spherical bulges, 38 clamp springs and 39 feeding joints.
4 valve switch, 41 switch parts, 42O-shaped ring, 43 air volume adjusting knob, 44 round bulge, 45 square bulge, 46 air hole, 47 rotating part, 48 groove, 49 round groove and 491 square groove.
5, rotating the air inlet part, 51 a core pipe, 52 an upper screw rod, 53 a lower screw rod, 54 a sealing ring and 55 a sealing groove.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
as shown in fig. 1 to 12, the present embodiment provides a spray gun 1 with integrated functions, which includes a gun body 11, a gun handle 12 and a trigger, wherein the spray gun 1 is provided with an air inlet 14 and an air outlet 15, an upper pipeline 16 and a lower pipeline 17 which are communicated with each other are provided inside the spray gun 1, the air inlet 14 is provided on the gun handle 12 in a manner of being communicated with the lower pipeline 17, the air inlet 14 is connected with an external air pipe, the air outlet 15 is provided on the gun body 11 in a manner of being communicated with the upper pipeline 16, a control area 19 is formed on a part of the gun body 11 close to the air inlet 14, a compression area 18 is formed on a part of the gun body 11 far away from the air inlet 14, and the trigger is rotatably connected on the; paint in the compression zone 18 is caused to be sprayed in a mist by depressing the trigger.
The spray gun 1 also comprises
A filtering watering can 2, said filtering watering can 2 being arranged on the gun body 11 above the compression zone 18 in such a way that the compression zone 18 is filled with filtered paint;
as shown in fig. 2 to 4, the filtering watering can 2 includes a can mouth 21, a can lid 22, a filter screen 23 and a can body 24; the oil can nozzle 21 is arranged above the oil can cover 22; the oil can cover 22 is screwed with the oil can body 24; the filter screen 23 is arranged inside the oil pot body 24;
the filter screen 23 is arranged at the lower end in the oil kettle body 24, a sealing ring 231 is arranged at the edge of the filter screen 23, and the sealing ring 231 is tightly attached to the inner wall of the funnel-shaped discharge hole 25;
the facing surface of the sealing ring 231 and the inner wall of the oil pot body is an inclined surface, and the upper surface of the sealing ring 231 is provided with three convex handles 232;
the upper surface of the closing ring 231 is an inclined surface which is inclined downwards along the inner wall of the oil can body 24.
Three through holes 233 are arranged on the sealing ring 231, and the diameter of each through hole 233 is 0.2 mm-1 mm; for example 0.4mm, the head of the oil can nozzle 21 is in a circular cap shape, and the diameter of the circular cap is larger than that of the insertion opening 221 of the oil can cover; the tail part of the oil bottle nozzle 21 is a round convex block; a socket 221 for embedding and connecting the oil can cover, and an air inlet hole 211 is arranged at the head of the oil can nozzle 21. The oil can mouth 21 is covered, the air inlet hole 211 is communicated with the inside of the oil can body 24, the oil can mouth 21 is pulled up, and the air inlet hole 211 and the inside of the oil can body 24 are disconnected.
The closed ring 231 is provided with a through hole 233, and the diameter of the through hole 233 is extremely small and is equivalent to the filtering hole of the filtering net 23; the through hole 233 is formed in the sealing ring 231, so that when the paint is used up at last, the liquid accumulated on the upper surface of the sealing ring 231 can be filtered through the through hole 233 in the sealing ring 231 and finally flows to the outlet of the oil can body 24, unnecessary waste is avoided, and the filter screen 23 which is detached is convenient to clean.
The oil can cover 22 is circular, the upper surface of the oil can cover is provided with a concave insertion opening 221, and a connecting air hole is formed in the insertion opening 221 and used for communicating the air inlet hole 211 with the inside of the oil can body 24.
The oil pot body 24 is provided with a feeding port 26 and a discharging port 25, and the feeding port 26 is arranged at the upper end of the oil pot body 24;
the discharge hole 25 is arranged at the lower end of the oil pot body 24 and is funnel-shaped.
The material of the sealing ring 231, the oil pot nozzle 21, the oil pot cover 22 and the oil pot body 24 is PPSU material.
The filter screen 23 is made of nylon.
A strainer 3, the strainer 3 being provided on the gun body 11 between the compression area 18 and the filtering and sprinkling can 2 so as to uniformly fill the compressed area 18 with the paint flowing out of the filtering and sprinkling can 2;
as shown in fig. 5 and 6, the strainer 3 includes a housing 31 and a strainer 32 installed in the housing 31;
the shell 31 comprises a circular top surface 33, a plurality of fixed pillars 34 vertically connected with the outer edge of the circular top surface 33 and an annular discharge hole 35; the annular discharge hole 35 and the circular top surface 33 are parallel to each other and have opposite circle centers; one end of the fixed support column 34 is connected with the outer edge of the circular top surface 33, and the other end is connected with the annular discharge hole 35;
even filter screen 32 encloses into a cylinder, and the one end and the laminating of circular top surface 33 of even filter screen 32 cylinder, the other end and the laminating of the internal surface of cyclic annular discharge gate 35, just even filter screen 32 cylinder is tangent with fixed stay 34.
The center of the circular top surface 33 is provided with a feeding column 36 in the direction far away from the annular discharge hole 35, and one end of the feeding column 36 far away from the circular top surface 33 is provided with a spherical bulge 37.
And four layers of clamp springs 38 are arranged on the outer side edge of the annular discharge hole 35. The shell 31 is made of PE material. The uniform filtering net 32 adopts a 50-mesh nylon net. The mesh size of the uniform filter screen 32 is 0.3 mm.
The uniform filter screen 32 of the spray gun 1 is arranged in a feeding connector 39 of the spray gun, and the uniform filter screen 32 is clamped and fixed with the feeding connector 39 through a clamp spring 38; and then connects the feed connection 39 to the filtering watering can 2. The uniform filter screen 32 of the spray gun 1 is installed in a clamping mode of the clamp spring 38, installation is convenient, efficiency is high, the spray gun can be repeatedly cleaned and used, economy is high, and service life is long.
The feeding gland is arranged in the filtering spray can 2, the spherical bulge 37 on the feeding column 36 jacks up the feeding gland in the filtering spray can 2, paint flows out of the filtering spray can 2 and enters the feeding joint 39, and then flows out of the annular discharge port 35 through the filtering of the uniform filter screen 32 and enters the spray gun 1.
A valve switch 4, wherein the valve switch 4 is arranged on the gun body 11 close to one side of the control area 19 in a manner of opening or closing a passage between the upper pipeline 16 and the lower pipeline 17, and the valve switch 4 is rotatably connected with the gun body 11;
as shown in fig. 7 to 10, a cavity 13 is formed on the gun body 11, the cavity 13 is rotatably connected with the valve switch 4, and the valve switch 4 comprises a switch member 41 which is connected with an air volume adjusting knob 43 and an O-ring 42 at the same time.
The air volume adjusting knob 43 is a hollow cylinder, a round protrusion 44 is arranged at the upper part of the air volume adjusting knob 43, a square protrusion 45 is arranged on the round protrusion 44, and an air hole 46 is arranged on the outer wall of the air volume adjusting knob 43;
the upper part of the switch element 41 is provided with a rotating element 47 which is used for providing a holding point for twisting the valve switch 4; the middle part of the switch piece 41 is a solid cylinder; a notch 48 is arranged on the outer wall of the switch member 41 in the radial direction; the lower part of the inner wall of the valve switch 4 is provided with a circular groove 49, the circular groove 49 is matched and connected with the circular protrusion 44, the center of the circular groove 49 is provided with a square groove 491, and the square groove 491 is clamped and connected with the square protrusion 45.
The slot 48 is an arc slot, and when the air volume adjusting knob 43 is connected with the switch part 41, the air hole 46 is aligned with the arc end face of any side of the arc slot 48.
The tolerance adjust knob 43 adopts the material of Hpb59-1, tolerance adjust knob 43 surface chromium plating, the gas pocket 46 is circular gas pocket, O type circle 42 adopts rubber materials, valve switch 4 adopts the material of Hpb59-1, it is equipped with protruding line to rotate piece 47, solid cylinder surface is equipped with sunken perpendicular line.
A rotary air inlet part 5, wherein the rotary air inlet part 5 is arranged on the gun handle 12 close to one side of the air inlet 14 in a manner that the spray gun 1 and an external air pipe can rotate mutually.
As shown in fig. 11 and 12, the rotary air intake part 5 includes a core tube 51, an upper screw 52, a lower screw 53, and two sealing rings 54;
the lower part of the core pipe 51 is provided with an external thread, the middle part of the outer surface of the core pipe 51 is provided with two sealing grooves 55, and the sealing ring 54 is arranged in the sealing grooves 55;
the upper screw rod 52 is arranged on the outer diameter of the core pipe 51 in a sleeved mode; the upper part of the lower screw 53 is provided with internal threads, and the lower screw 53 is connected with external threads on the lower part of the core pipe 51 through the internal threads; the lower part of the lower screw 53 is provided with an external thread, and the upper end of the thread is provided with a sealing ring 54.
The upper end of the inner diameter of the core pipe 51 is communicated with an external air source, and the top end of the outer diameter of the core pipe 51 protrudes outwards.
The diameter of the upper part of the upper screw rod 52 is smaller than that of the lower part of the upper screw rod 52, the upper part of the upper screw rod 52 is provided with external threads, and the outer surface of the lower part of the upper screw rod 52 is hexagonal;
the diameter of the upper part of the lower screw 53 is larger than that of the lower part, the outer surface of the lower part of the lower screw 53 is hexagonal, and the lower part of the upper screw 52 is connected with the upper part of the lower screw 53 in a clamping way.
The sealing ring 54 is a rubber ring-shaped sealing ring, a thread locking agent is coated when the external thread on the lower part of the core pipe 51 is connected with the internal thread on the upper part of the lower screw 53, and the core pipe 51, the upper screw 52 and the lower screw 53 are made of stainless steel.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims (9)

1. A spray gun with integrated function comprises a gun body, a gun handle and a trigger, wherein an air inlet and an air outlet are arranged on the spray gun, an upper pipeline and a lower pipeline which are mutually communicated are arranged inside the spray gun, the air inlet is arranged on the gun handle in a way of being communicated with the lower pipeline, an external air pipe is connected onto the air inlet, the air outlet is arranged on the gun body in a way of being communicated with the upper pipeline, the gun body part close to the air inlet forms a control area, the gun body part far away from the air inlet forms a compression area, and the trigger is rotatably connected onto the gun body;
the method is characterized in that: the spray gun also comprises
A filter watering can disposed on the gun body above the compression zone in a manner to fill the compression zone with filtered paint;
the uniform leakage body is arranged on the gun body between the compression area and the filtering spray can in a mode of uniformly filling the paint flowing out of the filtering spray can into the compression area;
the valve switch is arranged on the gun body close to one side of the control area in a mode of opening or closing a passage between the upper pipeline and the lower pipeline and is rotationally connected with the gun body; the gun body is provided with a through hole which is rotationally connected with a valve switch, the valve switch comprises a switch piece which is simultaneously connected with an air quantity adjusting knob and an O-shaped ring, and the O-shaped ring is sleeved at the joint of the air quantity adjusting knob and the valve switch;
the rotary air inlet part is arranged on the gun handle close to one side of the air inlet in a manner that the spray gun and the external air pipe can rotate mutually.
2. The spray gun of claim 1, wherein: the uniform leakage body comprises a shell and a uniform filter screen arranged in the shell;
the shell comprises a circular top surface, a plurality of fixed pillars vertically connected with the outer edge of the circular top surface and an annular discharge hole; the annular discharge hole is parallel to the round top surface and the circle center of the annular discharge hole is opposite to that of the round top surface; one end of the fixed strut is connected with the outer edge of the circular top surface, the other end of the fixed strut is connected with the annular discharge port, and the outer edge of the annular discharge port is provided with a plurality of layers of sealing snap springs;
even filter screen encloses into a cylinder, and the one end and the laminating of circular top surface of even filter screen cylinder, the other end and the laminating of the internal surface of cyclic annular discharge gate, just even filter screen cylinder is tangent with the fixed bolster.
3. The spray gun of claim 2, wherein: the center of circular top surface is kept away from cyclic annular discharge gate direction and is equipped with the feeding post, the one end of keeping away from circular top surface of feeding post is equipped with spherical bulge.
4. The spray gun of claim 1, wherein: the air quantity adjusting knob is a hollow cylinder, a round protrusion is arranged at one end of the air quantity adjusting knob, a square protrusion is arranged on the round protrusion, and an air hole is formed in the outer wall of the other end of the air quantity adjusting knob;
a rotating piece is arranged at one end of the switch piece and used for providing a holding point for twisting the valve control switch; the middle part of the switch part is a solid cylinder; a notch is arranged on one side of the outer wall of the switch part close to the rotating part; the lower part of the inner wall of the other end of the switch piece is provided with a circular groove, the circular groove is connected with the circular protrusion in a matched mode, the center of the circular groove is provided with a square groove, and the square groove is connected with the square protrusion in a clamped mode.
5. The spray gun of claim 4, wherein: the air hole is aligned with the arc-shaped end face of any side of the arc-shaped notch when the air volume adjusting knob is connected with the switch piece.
6. The spray gun of claim 1, wherein: the rotary air inlet part comprises a core pipe, an upper screw rod, a lower screw rod and a plurality of sealing rings;
the top end of the core pipe protrudes outwards, the lower part of the outer diameter of the core pipe is provided with external threads, the middle part of the outer diameter of the core pipe is provided with a plurality of sealing grooves, and the sealing rings are arranged in the sealing grooves;
the upper screw rod is hollow and is rotatably sleeved on the outer diameter of the core pipe, and the upper part of the outer side of the upper screw rod is provided with an external thread;
the lower screw rod is hollow, an internal thread is arranged at the upper part of the lower screw rod, and the lower screw rod is connected with the external thread at the lower part of the core pipe through the internal thread; and the lower part of the lower screw rod is provided with an external thread.
7. The spray gun of claim 6, wherein: the upper end of the inner diameter of the core pipe is communicated with an external air source, and the top end of the outer diameter of the core pipe protrudes outwards to block the top end face of the upper screw rod.
8. The spray gun of claim 7, wherein: the lower part of the outer surface of the upper screw is hexagonal, the bottom of the inner side of the upper screw is concave upwards, and the inner surface of the upper screw is smooth;
the upper portion of the outer surface of the lower screw rod is hexagonal, the top of the inner side of the lower screw rod protrudes upwards, and the bottom of the inner side of the upper screw rod is sunken upwards and is meshed with the upward protrusion of the bottom of the inner side of the lower screw rod.
9. The spray gun of claim 1, wherein: the filtering sprinkling can comprises an oil can body and a filtering net, the oil can body comprises an upper cylindrical part and a lower conical part, and the cylindrical part and the conical part are integrally connected; an oil pot cover is screwed on an opening at the upper end of the cylindrical part, and an oil pot nozzle is arranged in the center of the oil pot cover; a discharge hole is formed below the conical part;
the filter screen is arranged on the inner wall of the conical part of the oil can body, the edge of the filter screen is provided with a sealing ring, and the sealing ring is tightly attached to the inner wall of the conical part; the closed ring is provided with a plurality of convex handles on the upper surface.
CN201810229139.1A 2018-03-20 2018-03-20 Spray gun with integrated function Active CN110302910B (en)

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Publication number Priority date Publication date Assignee Title
CN112976760A (en) * 2019-12-02 2021-06-18 杭州特种纸业有限公司 Special paper gluing compounding machine
CN112871486A (en) * 2021-01-13 2021-06-01 周作忠 Electrostatic spray gun capable of dispersing paint particles for automobile coating
CN113731669B (en) * 2021-08-30 2022-07-15 深圳市慧智慧科技有限公司 Fluid storage tank

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CN1376541A (en) * 2001-02-16 2002-10-30 Itw有限公司 Improvement of sprayer
CN103517765A (en) * 2011-06-30 2014-01-15 萨塔有限两合公司 Easy-to-clean spray gun, attachments for the same, and mounting and demounting methods
CN204134775U (en) * 2014-07-31 2015-02-04 萨塔有限两合公司 Spray gun
CN105499002A (en) * 2015-11-30 2016-04-20 广西凯纵机械制造有限公司 Spray gun capable of adjusting mist-spray surface
DE212016000027U1 (en) * 2016-04-19 2017-06-13 Zhejiang Prulde Electric Appliance Co., Ltd. spray gun
CN107309110A (en) * 2010-07-12 2017-11-03 卡莱流体技术有限公司 Include the system of the spray equipment with liquid supply container

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1376541A (en) * 2001-02-16 2002-10-30 Itw有限公司 Improvement of sprayer
CN107309110A (en) * 2010-07-12 2017-11-03 卡莱流体技术有限公司 Include the system of the spray equipment with liquid supply container
CN103517765A (en) * 2011-06-30 2014-01-15 萨塔有限两合公司 Easy-to-clean spray gun, attachments for the same, and mounting and demounting methods
CN204134775U (en) * 2014-07-31 2015-02-04 萨塔有限两合公司 Spray gun
CN105499002A (en) * 2015-11-30 2016-04-20 广西凯纵机械制造有限公司 Spray gun capable of adjusting mist-spray surface
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