阅读说明：本技术 一种用于汽车维修的喷枪结构及喷漆方法 (Spray gun structure for automobile maintenance and paint spraying method ) 是由 李波 李阳 于 2021-09-30 设计创作，主要内容包括：本发明属于汽车维修技术领域,具体涉及一种用于汽车维修的喷枪结构和喷漆方法。本发明提供的一种用于汽车维修的喷枪结构,包括上罩体和下罩体,上罩体上设有喷枪和泄压阀,喷枪通过枪体上的凹肩与上罩体密闭连接,喷枪的喷嘴设置在罩体的内部,喷枪的末端与内部盛装有喷涂材料的第二罐体密闭连接,喷枪的侧面设有手柄,手柄通过第三管道与提供压缩气的第三罐体密闭连接,手柄的下侧设有板把,板把与内部喷射装置连接,上罩体的侧面设有若干个气门座,气门座与盛装有气体的第一罐体进行密闭连接,气门座与喷头进行连接。本发明结构简单,操作方便,减少了喷漆中的皱纹和流挂现象,喷漆效果好且效率高。(The invention belongs to the technical field of automobile maintenance, and particularly relates to a spray gun structure and a spray painting method for automobile maintenance. The invention provides a spray gun structure for automobile maintenance, which comprises an upper cover body and a lower cover body, wherein a spray gun and a pressure release valve are arranged on the upper cover body, the spray gun is hermetically connected with the upper cover body through a concave shoulder on the gun body, a nozzle of the spray gun is arranged in the cover body, the tail end of the spray gun is hermetically connected with a second tank body in which spraying materials are contained, a handle is arranged on the side surface of the spray gun, the handle is hermetically connected with a third tank body which provides compressed gas through a third pipeline, a plate handle is arranged on the lower side of the handle and is connected with an internal spraying device, a plurality of valve seats are arranged on the side surface of the upper cover body, the valve seats are hermetically connected with a first tank body in which gas is contained, and the valve seats are connected with the spray head. The invention has simple structure, convenient operation, good paint spraying effect and high efficiency, and reduces the wrinkles and sagging phenomena in paint spraying.)

1. The utility model provides a spray gun structure for auto repair, includes the cover body that transparent material made, the last cover body (3) and the lower cover body (1) sealing connection of the cover body, be equipped with spray gun (5) and relief valve (14) on the last cover body (3) respectively, its characterized in that, spray gun (5) through concave shoulder (51) on the rifle body (53) and last cover body (3) sealing connection, nozzle (52) of spray gun (5) set up in the inside of the cover body, the end of spray gun (5) is through second pipeline (7) and the second jar body (12) sealing connection of inside splendid attire spraying material, the side of spray gun (5) is equipped with handle (6) that go on with internal connection, the end of handle (6) is through third pipeline (9) and the third jar body (13) sealing connection that provide compressed gas, the downside of handle (6) is equipped with board (8), the plate handle (8) is connected to the internal spray device.

2. A spray gun structure for automobile maintenance according to claim 1, characterized in that the upper cover body (3) is made of hard transparent material, the side of the upper cover body (3) is provided with a plurality of valve seats (2), the valve seats (2) are hermetically connected with a first tank (11) containing gas through a first pipeline (4) and a fourth pipeline (10), the valve seats (2) are connected with a spray head (32) arranged inside the upper cover body (3), and the spray head (32) and the spray nozzle (52) have the same height.

3. Spray gun structure for auto repair according to claim 1, characterized in that the upper cover (3) is provided with a rail (31), said rail (31) being movably connected and sealed with a concave shoulder (51).

4. Spray gun structure for auto repair according to claim 1, characterized in that the lower hood (1) is snapped in with the connection position of the upper hood (3) by means of a connection body (33).

5. Spray gun structure for auto repair according to claim 1 characterized in that a telescopic body (34) is provided on the lower cover body (1), the lower cover body (1) is made of elastic transparent soft material.

6. Spray gun structure for automotive maintenance according to claim 1, characterised in that the lower hood (1) is provided with a sealing gasket (15).

7. Spray gun structure for automotive maintenance according to claim 6, characterized in that the bottom surface of the sealing gasket (15) is provided with double-sided adhesive tape or suction cups.

8. A method for painting a structure of a spray gun for vehicle repair according to any one of claims 1 to 7, characterized in that it comprises the following steps:

step 1: the protective film is used for covering and firmly adhering the outer side of the working surface of the pre-spraying position of the automobile body;

step 2: an operator lifts the handle (6) to lift the lower cover body (1) to align with the working surface at the pre-spraying position, presses down the handle (6) to completely cover and compress the working surface at the pre-spraying position by the lower cover body (1), and then compresses the double-sided adhesive tape or the sucker rotating ring at the bottom surface of the sealing gasket (15) to enable the lower cover body (1) and the working surface to be in a closed state;

and step 3: adjusting a nozzle (52) on a spray gun (5) on a track (31) to ensure that the nozzle (52) is opposite to and fixed with a working surface at a pre-spraying position, starting a switch of a first tank body (11), leading gas in the first tank body (11) to enter a cover body from a valve seat (2) through a spray head (32), blowing the gas entering the cover body to the position where vehicle paint is sprayed out from the nozzle (52), and leading the vehicle paint to be in a suspension state:

and 4, step 4: the lower plate is pressed to open and close the switch (8), so that the spraying material in the second tank body (12) and the compressed air in the third tank body (13) are sprayed out from the nozzle (52), the working surface is sprayed, and the sprayed vehicle paint is suspended;

and 5: in the spraying process, an operator can observe the sprayed working surface at any time through the transparent upper cover body (2) and the transparent lower cover body (1) until all the working surfaces are sprayed;

step 6: and (5) after standing for at least 2 hours, tearing off the protective film, and polishing and waxing the spraying position by using a polishing machine.

9. The method for spraying paint on a structure of a spray gun for vehicle repair according to claim 8, characterized in that the gas in the first tank (11) is carbon dioxide gas or nitrogen gas.

10. The method for spraying paint on a spray gun structure for automobile repair according to claim 8, characterized in that the pressure relief valve (14) is set to a pressure relief value of 1.10 to 1.50 atmospheres.

Technical Field

The invention belongs to the technical field of automobile maintenance equipment, and particularly relates to a spray gun structure and a spray painting method for automobile maintenance.

Background

With the popularization and the large-scale use of automobiles, in use, the automobiles are frequently damaged due to various collisions, the automobiles need to be maintained after being damaged, after the metal plates on the surfaces of the automobiles are repaired, the repaired surface parts need to be sprayed with paint, and after the paint is sprayed, a protective film can be formed on the surface of an automobile body, the automobile body is not easy to corrode, the service life of the automobiles is prolonged, and beautiful enjoyment can be brought to people. When an automobile spray gun is used for repairing and spraying paint, the problems of wrinkles, shrinkage deformation and sagging caused by local uneven thickness of the surface of finish paint due to the fact that the spraying quality is not easy to control often occur, when the phenomenon is slight, after the finish paint is dried, a defective area can be firstly wet-sprayed by fine sand paper, and then waxing and polishing are carried out. In case of serious phenomena, the paint needs to be sprayed again after the defective area is sprayed, and in case of serious conditions, the paint layer needs to be removed until the metal layer is exposed and then the paint is sprayed again.

Disclosure of Invention

In order to solve the technical problems, the invention provides a spray gun structure and a spray painting method for automobile maintenance, which reduce wrinkles and sagging phenomena in spray painting through an upper cover body, a lower cover body, a valve seat arranged on the upper cover body, a spray head, a spray nozzle and the used spray painting method, and achieve the purposes of convenient operation, good spray painting effect and high spray painting efficiency.

In order to achieve the purpose, the invention provides a spray gun structure for automobile maintenance, which comprises a cover body made of transparent materials, wherein an upper cover body and a lower cover body of the cover body are hermetically connected, a spray gun and a pressure release valve are respectively arranged on the upper cover body, the spray gun is hermetically connected with the upper cover body through a concave shoulder on the gun body, a nozzle of the spray gun is arranged in the cover body, the tail end of the spray gun is hermetically connected with a second tank body filled with spraying materials through a second pipeline, a handle connected with the inside is arranged on the side surface of the spray gun, the tail end of the handle is hermetically connected with a third tank body providing compressed air through a third pipeline, and a plate handle is arranged on the lower side of the handle and connected with an internal spraying device.

According to the preferable technical scheme, the upper cover body is made of hard transparent materials, a plurality of valve seats are arranged on the side face of the upper cover body, the valve seats are connected with a first tank body containing gas in a sealing mode through a first pipeline and a fourth pipeline, the valve seats are connected with a spray head arranged inside the upper cover body, and the spray head and the spray nozzle are the same in height.

According to the preferable technical scheme, the upper cover body is provided with a rail, and the rail is movably connected with the concave shoulder and sealed.

According to the preferable technical scheme, the lower cover body is clamped with the upper cover body through the connecting body.

According to the preferable technical scheme, the lower cover body is provided with a telescopic body and is made of elastic and transparent soft materials.

According to the preferable technical scheme, a sealing gasket is arranged on the lower cover body.

According to the preferable technical scheme, the bottom surface of the sealing gasket is provided with a double-sided adhesive tape or a sucker.

A method for painting a spray gun structure for vehicle maintenance, characterized in that it comprises the following steps:

step 1: the protective film is used for covering and firmly adhering the outer side of the working surface of the pre-spraying position of the automobile body;

step 2: an operator lifts the handle to lift the lower cover body to align with the working surface at the pre-spraying position, presses down the handle to completely cover and press the working surface at the pre-spraying position by the lower cover body, and presses the double-sided adhesive tape or the sucker rotating ring at the bottom surface of the sealing gasket tightly to enable the lower cover body and the working surface to be in a closed state;

and step 3: adjusting the nozzle on the spray gun on the track and letting the nozzle just fixed the working face of spraying position in advance, opening the switch of the first jar of body, let the internal gas of first jar cover internally from the valve holder through the shower nozzle entering, it just blows to carry out the air-blowing from the position of nozzle blowout car lacquer to enter into the gas that covers the body, makes the car lacquer become the suspension form:

and 4, step 4: pressing the switch on the lower plate to spray the spraying material in the second tank and the compressed air in the third tank from the nozzle to spray the working surface to make the sprayed vehicle paint in a suspended state;

and 5: in the spraying process, an operator can observe the sprayed working surface at any time through the transparent upper cover body and the transparent lower cover body, and after all the working surfaces are sprayed;

step 6: and (5) after standing for at least 2 hours, tearing off the protective film, and polishing and waxing the spraying position by using a polishing machine.

In a preferred technical scheme, the gas in the first tank body is carbon dioxide gas or nitrogen gas.

According to the preferable technical scheme, the pressure relief value arranged on the pressure relief valve is 1.10-1.50 atmospheric pressures.

Compared with the prior art, the invention has the following beneficial effects: .

1. The invention has simple structure, convenient operation, good paint spraying effect and high paint spraying efficiency;

2. the cover body is arranged, so that the working environment of operators is improved, and the health of the operators is guaranteed;

2. the invention reduces the wrinkles and sagging phenomenon in painting.

Drawings

FIG. 1 is an external structural view of a spray gun structure for automobile repair according to the present invention;

FIG. 2 is an internal structural view of FIG. 1;

FIG. 3 is a left side view of another enlarged configuration of the spray gun and shroud of FIG. 1.

Reference numerals

In the figure: 1-lower cover body; 2-valve seat; 3-upper cover body, 31-track, 32-spray head, 33-connecting body, 34-telescopic body; 4-a first conduit; 5-spray gun, 51-concave shoulder, 52-nozzle, 53-gun body; 6, a handle; 7-a second conduit; 8-plate handle; 9-a third conduit; 10-a fourth conduit; 11-a first tank; 12-a second tank; 13-a third tank; 14-pressure relief valve; 15-sealing gasket.

Detailed Description

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Example 1

As shown in fig. 1 to 3, the spray gun structure for automobile repair provided by the invention comprises a cover body made of transparent material, the cover body made of transparent material is selected, the state and progress of internal spray painting can be conveniently observed, wherein the upper cover body 3 and the lower cover body 1 are connected in a sealing way, the upper cover body 3 is respectively provided with a spray gun 5 and a pressure release valve 14, the spray gun 5 is connected with the upper cover body 3 in a sealing way through a concave shoulder 51 on a gun body 53, a nozzle 52 of the spray gun 5 is arranged in the cover body, the tail end of the spray gun 5 is connected with a second tank body 12 which is internally filled with spraying materials in a sealing way through a second pipeline 7, the side surface of the spray gun 5 is provided with a handle 6 which is connected with the inside, the tail end of the handle 6 is connected with a third tank body 13 which provides compressed air in a sealing way through a third pipeline 9, the lower side of the handle 6 is provided with a plate handle 8, and the plate handle 8 is connected with an internal injection device. In order to enable the vehicle paint sprayed from the nozzle 52 to be in a suspension state, achieve the effect of uniform sprayed vehicle paint and eliminate wrinkles and sagging of the sprayed paint, a plurality of valve seats 2 are arranged on the side surface of the upper cover body 3, the valve seats 2 are hermetically connected with the first tank body 11 containing gas through the first pipeline 4 and the fourth pipeline 10, the valve seats 2 are connected with the spray head 32 arranged inside the upper cover body 3, and the spray head 32 is as high as the nozzle 52. In this embodiment, the gas in the first tank 11 is carbon dioxide gas, and because carbon dioxide gas is heavier than air, the carbon dioxide gas sprayed from the nozzle 32 can spray the mist paint sprayed from the nozzle 52, so as to rapidly blow and expand the mist paint, and the gas in the cover has larger buoyancy, so as to increase the uniformity of the mist paint formed by the sprayed paint. In order to quickly and accurately adjust the spraying position of the nozzle 5 on the spray gun 5, the upper cover 3 is provided with a rail 31, the rail 31 is movably connected with the concave shoulder 51 and is sealed, and the spray gun 5 can be fixed at any position on the rail 31.

As shown in fig. 3, in order to conveniently replace the lower cover 1, in an optimal technical scheme, the lower cover 1 is conveniently detached and installed through the connection position of the connection body 33 and the upper cover 3, and the connection body 33 is of a clamping structure. In order to be able to be quickly disassembled and to ensure the sealing effect, the lower cover body 1 is provided with a sealing gasket 15. In this embodiment, the bottom surface of the sealing pad 15 is selectively provided with a double-sided tape or a suction cup. In order to quickly adjust the height of the lower cover body 1 and timely adjust the volume in the cover body, a telescopic body 34 is arranged on the lower cover body 1, the lower cover body 1 is made of elastic transparent soft material, when an operator tightly connects a double-sided adhesive tape or a sucker on the lower cover body 1 with a working surface at a pre-spraying position of a vehicle body, the handle 6 is lifted upwards, the telescopic body 34 is lifted, and the functions of increasing the height of the lower cover body 1 and increasing the volume in the cover body are achieved, so that the pressure intensity in the cover body is reduced; when the handle 6 is pressed downwards, the telescopic body 34 is pressed downwards, and the functions of reducing the height of the lower cover body 1, reducing the volume in the cover body and increasing the pressure intensity can be achieved.

A method of painting using an auto repair gun structure comprising the steps of:

step 1: the protective film is used for covering and firmly adhering the outer side of the working surface of the pre-spraying position of the automobile body;

step 2: an operator lifts the handle 6 to lift the lower cover body 1 to align with the working surface at the pre-spraying position, presses down the handle 6 to completely cover and press the working surface at the pre-spraying position by the lower cover body 1, and presses all the rotating rings of the double-sided adhesive tape or the sucker on the bottom surface of the sealing gasket 15 to realize the purpose of realizing the sealing state of the lower cover body 1 and the working surface;

and step 3: adjusting a nozzle 52 on the spray gun 5 on the track 31 to ensure that the nozzle 52 is opposite to and fixed on a working surface at a pre-spraying position, starting a switch of the first tank body 11 to ensure that gas in the first tank body 11 enters the cover body from the valve seat 2 through the spray head 32, and blowing the gas entering the cover body to a position where vehicle paint is sprayed out from the nozzle 52 to ensure that the vehicle paint is in a suspension state:

and 4, step 4: the switch 8 is switched on and off by pressing the lower plate, so that the spraying material in the second tank body 12 and the compressed air in the third tank body 13 are sprayed out from the nozzle 52, and the working surface is sprayed, so that the sprayed vehicle paint is in a suspension state;

and 5: in the spraying process, an operator can observe the sprayed working surface at any time through the transparent upper cover body 2 and the transparent lower cover body 1, and after all the working surfaces are sprayed;

step 6: and (5) after standing for at least 2 hours, tearing off the protective film, and polishing and waxing the spraying position by using a polishing machine.

In order to make the sprayed paint spread more uniformly and realize the spraying under positive pressure, the preferable technical scheme is that the pressure relief value range set on the pressure relief valve 14 is 1.10-1.50 atmospheric pressures, the preferable technical scheme is that the pressure relief value set on the pressure relief valve 14 is 1.10, 1.20, 1.30, 1.40 or 1.50 atmospheric pressures, and when the set pressure value is exceeded, the pressure relief valve 14 is opened to release the higher pressure. In this embodiment, the pressure relief numerical value that sets up on the relief valve 14 is 1.50 atmospheric pressure to guarantee that the spraying effect under carbon dioxide is better.

Example 2

This example is further improved on the basis of example 1, with the difference that: the spraying method of the spray gun structure for automobile maintenance provided by the embodiment is characterized in that nitrogen is selected as the gas in the first tank body 11, the specific gravity of the nitrogen is slightly smaller than the weight of air and is not easy to react with other substances, the nitrogen sprayed from the spray head 32 can firstly slightly adjust the buoyancy in the cover body, secondly can also quickly spread the atomized paint sprayed from the spray nozzle 52, and finally can also play a role in ensuring the safety of the spraying operation. In order to ensure the painting effect in the nitrogen gas, the pressure relief value set on the pressure relief valve 14 is 1.10 atmospheric pressures.

The preferred embodiments and examples of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the embodiments and examples described above, and various changes can be made within the knowledge of those skilled in the art without departing from the concept of the present invention.