CN213161381U - Paint spray gun - Google Patents

Abstract

The utility model provides a paint spray gun, including the rifle body and paint kettle, paint kettle includes the calash lid and the tubbiness kettle body of one end open-ended, and the one end of calash lid links to each other with the paint interface of the rifle body, and the other end of calash lid links to each other through clamping mechanism with the kettle body, and clamping mechanism is including setting up the annular joint groove on the calash lid and setting up the deformation hem on the kettle body, the joint groove comprises the inside groove face that is close to the pot lid axis, the outer tank face of keeping away from the pot lid axis and the tank bottom face between the two, is equipped with spacing boss on the outer tank face, and the junction of outer tank face and tank bottom face is equipped with the connection curved surface, the deformation hem is formed by the kettle wall of kettle body open end outwards turning over a book, and the deformation hem is annular plane, and the ring width. The beneficial effects of the utility model are that owing to adopt above-mentioned technical scheme, the connection of the kettle body and pot lid is convenient, and the kettle body disposable is used, need not clean the kettle body, reduces to poison and environmental pollution.

Description

Paint spray gun

Technical Field

The utility model relates to a paint spray gun.

Background

The paint spray gun is an important tool in spraying work, the paint spray gun is connected with a paint kettle and a compressed air source, when the compressed air source is sprayed out through a nozzle of the paint spray gun, a negative pressure area lower than the atmospheric pressure is generated at a kettle mouth of the paint kettle connected with the paint spray gun, paint is sucked out of the paint kettle by the negative pressure, and the paint is atomized into particles to be sprayed on the surface of an object to be coated under the action of high-speed jet force of compressed air.

In the prior art, paint mixing operation is mostly needed before spraying, paint with a target color is mixed through mixing of paints with different colors, a disposable plastic cup is mostly adopted as a paint mixing container, and after the paint mixing is completed in the disposable plastic cup, the paint is poured into a paint kettle for paint spraying operation. Paint spray guns and paint pots are mostly reused, and after each paint of one color is sprayed, the paint pot and the paint spray gun need to be cleaned, so that the condition that the paint blocks the paint spray gun after being dried or the paint color of the previous time interferes with the paint color of the next time is avoided. The cleaning process needs a paint solvent, the paint solvent mainly comprises banana oil, the banana oil has certain biotoxicity, adverse effects are brought to operators or the environment in each cleaning process, and reduction of the using amount of the banana oil has important significance for protection of the operators and the environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a paint spray gun, paint spray gun's paint kettle comprises the kettle body and pot lid, and the kettle body passes through the convenient linking to each other of joint structure with the pot lid, and the kettle body once only uses, only needs wash spray gun and pot lid, has reduced the washing area, has reduced the use of paint solvent to the reduction is poisoned and is polluted.

The technical scheme of the utility model is that:

the utility model provides a paint spray gun, includes the rifle body and paints the kettle, be equipped with nozzle, switch, air source interface on the rifle body and with paint kettle matched with paint the interface, paint the kettle including the pot lid and one end open-ended tubbiness kettle body, the one end of pot lid links to each other with the paint interface of the rifle body, and the other end of pot lid links to each other through clamping mechanism with the kettle body, and clamping mechanism is including setting up annular joint groove on the pot lid and setting up the deformation hem on the kettle body, the joint groove comprises the tank bottom face between the inner tank face that is close to the pot lid axis, the outer tank face of keeping away from the pot lid axis and the two, is equipped with spacing boss on the outer tank face, and the junction of outer tank face and tank bottom face is equipped with the connection curved surface, the deformation hem is formed by the kettle wall of kettle body open end outwards rolling over, and the deformation hem is annular plane shape, and.

The kettle cover is conical, a kettle nozzle is arranged at the tip end of the kettle cover, and the kettle nozzle is connected with a paint port of the spray gun through threads. The kettle body can adopt a disposable plastic cup.

2 are no less than to spacing boss, and spacing boss evenly distributed in the circumferential direction of outer groove face.

And a deformation area for adjusting the volume of the kettle body is arranged on the kettle wall of the kettle body far away from the opening end. The deformation area balances the pressure in the paint kettle in the process of adjusting the volume of the kettle body and sucking out the paint in the paint kettle, so that the situation that the negative pressure in the paint kettle is too large to suck out the paint is avoided.

Optionally, the deformation area is a telescopic corrugated part arranged on the side wall of the kettle body;

optionally, the deformation region is an elastic film disposed on the sidewall of the kettle body.

The inner diameter of the kettle body is gradually reduced from the opening end to the direction far away from the opening end, and a guide curved surface is arranged at the joint of the end surface of the kettle cover facing the kettle body and the inner groove surface.

A filter screen is arranged in the kettle cover.

The kettle body is provided with a safety valve.

The utility model has the advantages and positive effects that: by adopting the technical scheme, the kettle body and the kettle cover are convenient to connect, the kettle body can be used at one time, the kettle body does not need to be cleaned, the use of organic solvent banana oil is reduced, and the toxic hazard and the environmental pollution are reduced.

Drawings

FIG. 1 is a schematic view of a separated state of a cover and a body

FIG. 2 is a schematic view of the structure of the pot lid and the pot body in a clamping state

FIG. 3 is a detail view at A of FIG. 1

FIG. 4 is a detail view at B of FIG. 2

FIG. 5 is a schematic view of the structure of the limiting boss on the lid

In the figure:

1. pot lid 2, pot body 11, joint groove

12. Spout 21, deformed folded edge 22 and corrugated part

111. Inner groove bottom 112, outer groove bottom 113, groove bottom

114. Limiting boss 115, connecting curved surface 116 and guiding curved surface

Detailed Description

As shown in fig. 1-5, the utility model discloses:

a paint spray gun comprises a gun body and a paint kettle, wherein the gun body is provided with a nozzle, a switch, an air source interface and a paint interface matched with the paint kettle, the paint kettle comprises a kettle cover 1 and a barrel-shaped kettle body 2 with an opening at one end, one end of the kettle cover 1 is connected with a paint interface of a gun body, the other end of the kettle cover 1 is connected with the kettle body 2 through a clamping mechanism, the clamping mechanism comprises an annular clamping groove 11 arranged on the kettle cover 1 and a deformation folding edge 21 arranged on the kettle body 2, the clamping groove 11 consists of an inner groove surface 111 close to the axis of the kettle cover, an outer groove surface 112 far away from the axis of the kettle cover and a groove bottom surface 113 between the inner groove surface and the outer groove surface, a limit boss 114 is arranged on the outer groove surface 112, a connecting curved surface 115 is arranged at the joint of the outer groove surface 112 and the groove bottom surface 113, the deformation folding edge 21 is formed by outwards folding the kettle wall at the opening end of the kettle body, the deformation folding edge 21 is in an annular plane shape, and the annular width of the deformation folding edge is larger than the distance between the inner groove surface 111 and the outer groove surface 112.

The kettle cover 1 is conical, the tip of the kettle cover 1 is provided with a kettle nozzle 12, and the kettle nozzle 12 is connected with a paint port of the spray gun through threads. The pot body 2 can adopt a disposable plastic cup with the caliber of 95 mm.

The utility model discloses a kettle body is disposable to be used, and before the equipment, pot lid 1 and the 2 separation of the kettle body, the process of transferring lacquer directly goes on in the kettle body 2, transfers lacquer to accomplish the back, with the paint kettle of the 1 joint of the kettle body 2 and pot lid in combination state, and is further, with the hu zui 12 of paint kettle and the paint interface connection of the rifle body.

The clamping process of the kettle body 2 and the kettle cover 1 needs to be carried out by means of a sleeve, the diameter of the sleeve is matched with that of the clamping groove 11, the wall thickness of the sleeve is smaller than the width of the clamping groove 11, the kettle body 2 bearing the color-adjusting paint is placed at the end part of the sleeve, the main body of the kettle body 2 extends into the sleeve, the deformation folded edge 21 of the kettle body 2 is supported by the end part of the sleeve, the clamping groove 11 of the kettle cover is aligned with the end part of the sleeve to be pressed downwards, the deformation folded edge 21 is extruded, because the width of the deformed folding edge 21 is larger than that of the clamping groove 11, the deformed folding edge 21 is extruded into the clamping groove 11 in a U-shaped form, when the deformed folding edge 21 is completely extruded into the clamping groove 11, the outer edge of the deformed folding edge 21 abuts against the limiting boss 114, and under the action of elasticity, the end surface of the deformed folding edge 21 close to the pot lid 1 is attached to the groove bottom surface 113 and the connecting curved surface 115, so that the pot body 2 is hermetically connected with the pot lid 1.

The number of the limiting bosses 114 is 8, and the limiting bosses 114 are uniformly distributed in the circumferential direction of the outer groove surface 112.

The kettle wall of the kettle body 2 far away from the opening end is provided with a deformation area for adjusting the volume of the kettle body.

The paint in the paint kettle can be continuously consumed by the spray gun in the using process, the paint kettle is a sealed cavity, negative pressure is generated in the paint kettle due to the consumption of the paint, and therefore the paint cannot be sucked out or the kettle body deforms. Excessive deformation of the kettle body 2 can cause clamping failure, and the kettle body 2 is separated from the kettle cover 1, so that the paint is poured.

By providing the deformation zone, the volume of the paint can is adjusted by deformation of the deformation zone, counteracting the negative pressure generated by consumption of paint.

The deformation zone is a telescopic corrugated part 22 arranged on the side wall of the kettle body.

The inner diameter of the kettle body 2 gradually decreases from the opening end to the direction far away from the opening end, and a guide curved surface 116 is arranged at the joint of the end surface of the kettle cover 1 facing the kettle body and the inner groove surface 111.

When the deformed folded edge 21 of the kettle body 2 is clamped in the clamping groove 11, the guide curved surface 116 is in interference fit with the inner surface of the kettle body 2, and the sealing performance of the connection between the kettle body 2 and the kettle cover 1 is further enhanced.

A filter screen is arranged in the kettle cover 1.

A safety valve is arranged on the kettle body 2. The paint kettle is at the in-process that sprays paint, and the paint kettle sets up in the top of rifle body gravity direction, and the relief valve sets up in the tip that the open end was kept away from to the kettle body. When the deformation amount of the deformation area is not enough to offset the negative pressure generated by paint consumption, the safety valve is opened, and the paint kettle is communicated with the outside.

The safety valve is a through hole covering a film on the kettle body, the rupture pressure of the film is set, and when the negative pressure in the paint kettle reaches a certain value, the film is ruptured.

After the spraying paint is finished, the kettle body 2 is close to the kettle cover 1 and is extruded and deformed by hands, the outer edge of the deformed folded edge 21 of the kettle body 2 is separated from the limiting boss 114, then the kettle cover 1 and the kettle body 2 are separated, the kettle body 2 is properly treated as garbage, and only the kettle cover 1 and the gun body need to be cleaned.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims (7)

1. The utility model provides a paint spray gun, includes the rifle body and paint kettle, be equipped with nozzle, switch, air supply interface on the rifle body and with paint kettle matched with paint interface, its characterized in that: the paint kettle comprises a kettle cover and a barrel-shaped kettle body with one open end, one end of the kettle cover is connected with a paint interface of a gun body, the other end of the kettle cover is connected with the kettle body through a clamping mechanism, the clamping mechanism comprises an annular clamping groove arranged on the kettle cover and a deformation folding edge arranged on the kettle body, the clamping groove comprises an inner groove face close to an axis of the kettle cover, an outer groove face far away from the axis of the kettle cover and a groove bottom face between the inner groove face and the outer groove face, a limiting boss is arranged on the outer groove face, a connecting curved surface is arranged at the joint of the outer groove face and the groove bottom face, the deformation folding edge is formed by outwards folding a kettle wall at the opening end of the kettle body, the deformation folding edge is annular planar, and the annular width of the.

2. A paint spray gun according to claim 1, wherein: 2 are no less than to spacing boss, and spacing boss evenly distributed in the circumferential direction of outer groove face.

3. A paint spray gun according to claim 1, wherein: and a deformation area for adjusting the volume of the kettle body is arranged on the kettle wall of the kettle body far away from the opening end.

4. A paint spray gun according to claim 3, wherein: the deformation area is a telescopic corrugated part arranged on the side wall of the kettle body.

5. A paint spray gun according to claim 1, wherein: the inner diameter of the kettle body is gradually reduced from the opening end to the direction far away from the opening end, and a guide curved surface is arranged at the joint of the end surface of the kettle cover facing the kettle body and the inner groove surface.

6. A paint spray gun according to claim 1, wherein: a filter screen is arranged in the kettle cover.

7. A paint spray gun according to claim 1, wherein: the kettle body is provided with a safety valve.

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