CN212663943U

CN212663943U - Novel spray gun structure for coating plastic shell

Info

Publication number: CN212663943U
Application number: CN202021168363.3U
Authority: CN
Inventors: 韦鸣
Original assignee: Hefei Shengtaike Molding Technology Co ltd
Current assignee: Hefei Shengtaike Molding Technology Co ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-03-09
Anticipated expiration: 2030-06-22

Abstract

The utility model discloses a novel spray gun structure for coating plastic shells, which comprises a spray pipe and a spray gun main body, wherein the spray pipe is arranged on the outer wall of the front end of the spray gun main body, a nozzle is arranged on the outer wall of the front end of the spray pipe, when the spray gun is used, the coating is atomized into particles to be sprayed on the surface of the plastic, and the protective cover just blocks the coating of the particle particles, thereby preventing the coating from splashing back from the plastic shell or the nozzle, enabling the coating to be infected on the protective cover and then flow into a groove between an agnail block and the protective cover, preventing the coating from directly falling onto the ground, simultaneously, after long-time spraying, the fingers are easy to be sour, at the moment, a knob can be rotated, so that an adjusting screw rod and a rubber pad block a trigger can be clamped by the fingers, the spray gun can be used for long-time spraying, meanwhile, the manual operation trigger is replaced by the adjusting screw, so that the labor is saved.

Description

Novel spray gun structure for coating plastic shell

Technical Field

The utility model belongs to the technical field of the application is relevant, concretely relates to novel spray gun structure for plastic casing application.

Background

A spray gun is a device that uses a quick release of liquid or compressed air as a motive force. The spray gun is divided into a normal pressure type spray gun and a pressurized spray gun. The spray gun also comprises a pressure type spray gun, a Kale type spray gun and an automatic recovery type spray gun, the spray gun can be directly used for loading coating in the application in the industry, namely a simple spray gun can be installed in automatic equipment such as an automatic glue sprayer, an automatic glue spreader, an automatic paint sprayer, a coating machine and other spraying equipment, the spray gun comprises a gun body and a gun head, and the gun body and the gun head are connected through a connecting mechanism; the gun head comprises a nozzle, and a plurality of metal round steel bars are welded in the nozzle in a plug welding manner; the connecting mechanism comprises a flange and a chain pin, and the nozzle is manufactured into a flat shape; the replacement is more convenient, the cost is lower, and the falling and abrasion of the gun head can be effectively prevented.

The prior spray gun technology has the following problems: the shower nozzle of the equipment that carries out the spraying plastics shell at present is very short, and the user is close more easily inhales harmful gas and influences healthy near the shower nozzle, and the hand sour condition appears easily in the trigger of holding for a long time simultaneously.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel spray gun structure for plastic casing application to it inhales harmful gas more closely and influences the healthy problem that the hand is sour to appear easily to detain the trigger for a long time simultaneously to provide the user in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a novel spray gun structure for coating a plastic shell comprises a spray pipe and a spray gun main body, wherein the spray pipe is installed on the outer wall of the front end of the spray gun main body, a spray nozzle is arranged on the outer wall of the front end of the spray pipe, a protective cover is sleeved on the outer wall of the circumference of the spray pipe, a rubber sleeve is arranged inside the protective cover, a barb block is arranged on the inner wall of the circumference of the foremost end of the protective cover, a material tank is arranged on the spray gun main body at the rear side of the spray pipe, a handle is arranged on the spray gun main body, an air joint is arranged on the outer wall of the lower end of the handle, a trigger is arranged on the spray gun main body at the front side of the handle, fixing rods are arranged on the outer walls of the left end and the right end of the handle, the two fixing rods are fixedly connected through a connecting, and a rubber pad is arranged on the outer wall of the rear end of the adjusting screw.

Preferably, the protection cover is made of a hemispherical transparent plastic material, and the diameter of the protection cover is larger than that of the nozzle.

Preferably, the width of the rubber sleeve is larger than the thickness of the protective cover, and the inner diameter of the rubber sleeve is smaller than the outer diameter of the spray pipe.

Preferably, the outer walls of the fixing rod and the handle are both provided with screw holes, and the fixing rod and the handle are fixedly connected through nuts.

Preferably, the outer walls of the knob and the handle are both provided with anti-skid grains.

Preferably, the nozzle is flat, the rubber pad is cylindrical, and the diameter of the rubber pad is greater than the width of the trigger.

Compared with the prior art, the utility model provides a novel spray gun structure for plastic casing application possesses following beneficial effect:

the utility model discloses a spray gun is through increasing the protection casing on the spray tube, can avoid like this that coating from plastic casing or nozzle splash back, prevent to cause the injury to the human body, and after 5 triggers are detained for a long time, the sour condition of hand easily produces, through increasing adjusting screw on hand, conveniently push down the trigger through rotatory adjusting screw, reduce the condition that the trigger was withheld to the finger, before using the spray gun, dismantle the nozzle from the spray tube earlier, then overlap the rubber sleeve cover in the protection casing on the spray tube, then install the nozzle again in the front end of spray tube, when using this spray gun, pour coating into the material jar earlier, again install the material jar on the spray gun, the spray gun is held the handle by palm, thumb, little finger and ring finger, the middle finger and trigger of withholding, under the effect of compressed air high-speed jet force, coating atomizes into the particle and sprays by the plastic surface index finger, and the protection casing just in time blocks the coating of particle granule, avoided coating to splash back from plastic casing or nozzle, make coating be infected with on the protection casing, later flow into in the recess between barb piece and the protection casing, prevent that coating from directly falling into subaerially, after long-time spraying simultaneously, the finger is sour more easily, at this moment can the rotary knob, make adjusting screw and rubber pad block the trigger, can replace the finger to withhold the trigger like this, make the spray gun can carry out the spraying for a long time, this spray gun simple structure, convenient operation, reduce coating to the human body injury, replace manual operation trigger through adjusting screw simultaneously, the manpower is saved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

FIG. 1 is a schematic structural view of a novel spray gun for coating plastic shells according to the present invention;

fig. 2 is a schematic view of the dissected planar structure of the protective cover according to the present invention;

fig. 3 is a schematic view of a dissected planar structure of the fixing rod according to the present invention;

in the figure: 1. a nozzle; 2. a protective cover; 3. a nozzle; 4. a spray gun body; 5. a trigger; 6. fixing the rod; 7. a handle; 8. an air connector; 9. a charging bucket; 10. a rubber sleeve; 11. a barb block; 12. a rubber pad; 13. a knob; 14. adjusting the screw hole; 15. a connecting rod; 16. adjusting the screw rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a novel spray gun structure for coating a plastic shell comprises a spray pipe 3 and a spray gun body 4, wherein the spray pipe 3 is arranged on the outer wall of the front end of the spray gun body 4, the outer wall of the front end of the spray pipe 3 is provided with a nozzle 1, the nozzle 1 is flat, a rubber pad 12 is cylindrical, the diameter of the rubber pad 12 is larger than the width of a trigger 5, so that the nozzle 1 is convenient to replace and low in cost, and can effectively prevent a gun head from falling off and wearing, meanwhile, the rubber pad 12 is easy to contact with the trigger 5, the outer wall of the circumference of the spray pipe 3 is sleeved with a protective cover 2, the inside of the protective cover 2 is provided with a rubber sleeve 10, the inner wall of the circumference of the foremost end of the protective cover 2 is provided with a barb block 11, the spray gun body 4 at the rear side of the spray pipe 3 is provided with a material tank 9, the spray gun body 4 is provided, all be provided with dead lever 6 about handle 7 on the both ends outer wall, two dead levers 6 pass through connecting rod 15 fixed connection, and connecting rod 15 front end outer wall is inside to be provided with adjusting screw 14, and adjusting screw 16 has been cup jointed to adjusting screw 14's inside, is provided with knob 13 on the outer wall of adjusting screw 16 front end, is provided with rubber pad 12 on the outer wall of adjusting screw 16 rear end.

A novel spray gun structure for coating a plastic shell comprises a spray pipe 3 and a spray gun main body 4, wherein a protective cover 2 is made of hemispherical transparent plastic, the diameter of the protective cover 2 is larger than that of a spray nozzle 1, so that the condition of spraying the spray gun on the plastic shell can be observed through the protective cover 2, the coating is prevented from splashing on a human body and causing injury to the human body, the width of a rubber sleeve 10 is larger than the thickness of the protective cover 2, the inner diameter of the rubber sleeve 10 is smaller than the outer diameter of the spray pipe 3, the protective cover 2 and the rubber sleeve 10 can be conveniently sleeved on the spray pipe 3, the distance from the protective cover 2 to the spray nozzle 1 can be adjusted at the same time, screw holes are formed in the outer walls of a fixed rod 6 and a handle 7, the fixed rod 6 and the handle 7 are fixedly connected through nuts, so that the fixed rod 6 can be installed, conveniently, the outer walls of the knob 13 and the handle 7 are provided with anti-slip lines, so that the spray gun is prevented from slipping off from the hand when the handle 7 is held, and the spray gun is prevented from being broken.

The utility model discloses a theory of operation and use flow: after the utility model is installed, when the protective cover 2 is installed, the nozzle 1 is firstly detached from the spray pipe 3, then the rubber sleeve 10 in the protective cover 2 is sleeved on the spray pipe 3, then the nozzle 1 is installed at the front end of the spray pipe 3 again, then the fixed rod 6 is installed on the handle 7 through the nut, then the adjusting screw 16 is inserted into the adjusting screw hole 14 on the connecting rod 15, the rubber pad 12 is arranged at the front end of the adjusting screw 16, the spray gun is controlled by the trigger 5, the deeper the trigger 5 is buckled, the larger the liquid flow rate is, the trigger 5 is buckled rather than half in the traditional gun walking process of the electrostatic spraying equipment, in order to avoid accumulation of the sprayed coating when the gun walking is finished each time, the trigger 5 needs to be slightly loosened to reduce the paint supply amount, therefore, the rubber pad 12 needs to be used, the trigger 5 can be loosened, when the spray gun is used, firstly, the paint is poured into the material tank 9, then the material tank 9 is installed on the spray gun, the spray gun is held by a palm, a thumb, a little finger and a ring finger of a hand handle 7, a middle finger and a forefinger are used for pulling a trigger 5, the working principle of the spray gun is that compressed air generated by an air compressor is sprayed out through an air cap at the front part of the spray gun, a low-pressure area lower than the atmospheric pressure is generated at the front part of a paint nozzle 1 connected with the spray gun, the paint is sucked out of the material tank 9 by the pressure difference generated at the nozzle of the spray gun, atomized into particles under the action of high-speed spraying force of the compressed air and sprayed on the surface of the plastic, and the protective cover 2 just blocks the paint of the particles, so that the paint is prevented from returning from a plastic shell or the nozzle 1 to be stained on the protective cover 2 and then flows into a groove between a barb block 11, the coating is prevented from directly falling onto the ground, fingers are easy to be sour after long-time spraying, and the knob 13 can be rotated at the moment, so that the trigger 5 is clamped by the adjusting screw 16 and the rubber pad 12, the trigger 5 can be buckled by the fingers, and the spray gun can spray for a long time.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel spray gun structure for plastic casing application, includes spray tube (3) and spray gun main part (4), its characterized in that: the spray pipe (3) is arranged on the outer wall of the front end of the spray gun main body (4), the outer wall of the front end of the spray pipe (3) is provided with a nozzle (1), the outer wall of the circumference of the spray pipe (3) is sleeved with a protective cover (2), the inside of the protective cover (2) is provided with a rubber sleeve (10), the inner wall of the circumference of the foremost end of the protective cover (2) is provided with a barb block (11), the spray gun main body (4) at the rear side of the spray pipe (3) is provided with a material tank (9), the spray gun main body (4) is provided with a handle (7), the outer wall of the lower end of the handle (7) is provided with an air connector (8), the spray gun main body (4) at the front side of the handle (7) is provided with a trigger (5), the outer walls at the left end and the right end of the handle (7) are, the adjustable connecting rod is characterized in that an adjusting screw hole (14) is formed in the outer wall of the front end of the connecting rod (15), an adjusting screw rod (16) is sleeved inside the adjusting screw hole (14), a knob (13) is arranged on the outer wall of the front end of the adjusting screw rod (16), and a rubber pad (12) is arranged on the outer wall of the rear end of the adjusting screw rod (16).

2. The novel spray gun structure for plastic shell coating according to claim 1, characterized in that: the protection casing (2) is hemispherical transparent plastic material, the diameter of protection casing (2) is greater than the diameter of nozzle (1).

3. The novel spray gun structure for plastic shell coating according to claim 1, characterized in that: the width of the rubber sleeve (10) is larger than the thickness of the protective cover (2), and the inner diameter of the rubber sleeve (10) is smaller than the outer diameter of the spray pipe (3).

4. The novel spray gun structure for plastic shell coating according to claim 1, characterized in that: the outer walls of the fixing rod (6) and the handle (7) are provided with screw holes, and the fixing rod (6) is fixedly connected with the handle (7) through a nut.

5. The novel spray gun structure for plastic shell coating according to claim 1, characterized in that: and anti-skid grains are arranged on the outer walls of the knob (13) and the handle (7).

6. The novel spray gun structure for plastic shell coating according to claim 1, characterized in that: the nozzle (1) is flat, the rubber pad (12) is cylindrical, and the diameter of the rubber pad (12) is larger than the width of the trigger (5).