Paint spray gun

Abstract

The utility model provides a paint spray gun, which is used for installing a paint container and can spray paint in the paint container in a mist form, the paint spray gun comprises a gun-shaped main body, the gun-shaped main body comprises a grip part, a gun barrel part transversely arranged at the top end of the grip part and a muzzle part arranged at the front end of the gun barrel part, the muzzle part is used for fixing a paint container in a penetrating mode and is arranged to be annular, an air outlet nozzle is arranged on the lower side of the muzzle part, one end of the air outlet nozzle is used for being connected with an air pump, and the other end of the air outlet nozzle is obliquely arranged upwards and can spray high-pressure air flow flowing through a discharging nozzle of the paint container. When the paint spraying gun is used, oil in a paint container can flow to the discharging nozzle under the action of gravity, the oil can be sprayed out through airflow with small pressure, use of high-pressure gas in the spraying process is reduced, the size of the gas tank can be reduced, and then the size of the paint spraying gun is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying devices, and in particular to a paint spray gun. Background Art

[0002] Paint spray guns are commonly used tools in the spraying industry. According to the spraying principle, they can be divided into three types: gravity spray guns, pressure-feed spray guns, and suction-type spray guns. Among them, suction-type spray guns are widely used in large-area spraying operations because they have better paint atomization and can meet the thickness and gloss requirements of the paint film. Patent announcement number CN218250918U utility model patent discloses a paint spray gun, which belongs to the suction-type spray gun. The paint tank is located at the bottom of the spray gun. The paint nozzle corresponds to the position of the air nozzle, which is generally located slightly forward of the air outlet of the air nozzle. The compressed air is generated by the air pressure device of the spray gun. When it is ejected through the air nozzle at the front of the spray gun, negative pressure is formed at the front end of the paint nozzle, and the paint is sucked out of the paint tank. After the paint meets the compressed air, the compressed air will atomize the paint and blow it to the object to be coated. Compressed air is sprayed under stable pressure and small fluctuations, and the paint atomization is more uniform, so the spraying effect will be better, so it is necessary to seal and maintain the pressure of the compressed air.

[0003] However, the applicant found in actual application that since the air nozzle of the paint spray gun is located below the paint nozzle, a high-pressure air flow is required to smoothly suck out the paint in the paint can. The gas usage is large, and a larger gas tank is required for gas storage, which makes the paint spray gun larger in size. Utility Model Content

[0004] The utility model aims to provide a paint spray gun which has smooth material discharge, small size and is convenient to use.

[0005] In order to achieve the above objectives, the utility model provides the following technical solutions:

[0006] The utility model provides a paint spray gun, which is used for installing a paint container and can spray the paint in the paint container in a mist form. The paint spray gun comprises a gun-shaped main body, the gun-shaped main body comprises a grip part, a barrel part horizontally arranged at the top end of the grip part and a muzzle part arranged at the front end of the barrel part, the muzzle part is used for passing and fixing the paint container and is arranged in a ring shape, an air outlet nozzle is arranged at the lower side of the muzzle part, one end of the air outlet nozzle is used for connecting with an air pump, the other end of the air outlet nozzle is arranged to be inclined upward, and can spray a high-pressure airflow flowing through a discharge nozzle of the paint container.

[0007] In one embodiment, the angle between the axis of the muzzle and the center line of the grip is an obtuse angle, so that the muzzle is slightly tilted upward to prevent oil from dripping from the discharge nozzle when the paint spray gun is idle.

[0008] In one embodiment, the gun barrel is provided with a slot, and the paint container is clamped in the slot when installed on the gun-shaped body.

[0009] In one embodiment, the opening of the slot is arranged upward, and its cross section is an arc shape.

[0010] In one embodiment, a limiting protrusion is provided on the inner side of the muzzle, and the limiting protrusion is used to be embedded in a preset limiting groove on the paint container when the paint container is inserted.

[0011] In one embodiment, the gun-shaped body includes a shell, the barrel portion and the muzzle portion are arranged at the upper end of the shell, and the handle portion is arranged at the lower end of the shell; the air pump is arranged in the shell, and a control switch for controlling the on-off of the air path between the air outlet nozzle and the air pump is arranged on the shell.

[0012] In one embodiment, the muzzle portion, the barrel portion and the grip portion are integrally formed.

[0013] In one embodiment, the barrel portion protrudes from the muzzle portion to form a lower jaw portion, the lower jaw portion is hollow, and the air outlet nozzle passes through the top end of the lower jaw portion.

[0014] In one embodiment, the control switch includes a button, and the housing is provided with a button mounting portion at the handle portion, the button mounting portion forms a shield protruding from a side surface of the housing, and the button can elastically pass through the shield.

[0015] In one embodiment, the outer diameter of the muzzle gradually decreases along the direction approaching the air outlet nozzle.

[0016] The beneficial effects of the technical solution provided by the utility model are as follows: the paint spray gun of the utility model arranges the paint container at the top and the air outlet nozzle at the bottom, so that the oil in the paint container can flow to the outlet nozzle under the action of gravity when in use, and the oil can be sprayed out smoothly by an air flow with a relatively low pressure, thereby reducing the amount of high-pressure gas used during spraying, reducing the volume of the air pump, and thus reducing the size of the paint spray gun, making it more convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments of the present utility model.

[0018] Figure 1 A three-dimensional diagram of a paint spray gun provided in one embodiment of the utility model;

[0019] Figure 2 for Figure 1 A schematic structural diagram of the paint spray gun from another perspective;

[0020] Figure 3 for Figure 1 The schematic diagram of the structure of the paint spray gun and the paint container is shown. DETAILED DESCRIPTION

[0021] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0022] It should be understood that the various steps described in the method implementation of the present utility model can be performed in different orders and / or performed in parallel. In addition, the method implementation may include additional steps and / or omit the steps shown. The scope of the present utility model is not limited in this respect.

[0023] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "connected" may be directly connected or indirectly connected through intermediate components (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0024] See also Figures 1 to 3 The utility model relates to a paint spray gun, which is used to install a paint container and spray the oil in the paint container in a mist form, and can be suitable for spraying paint on products such as automobiles, high-end furniture, doors and windows, and household appliances. The oil can be paint or pigment.

[0025] The paint spray gun 100 includes a shell and an air supply device, a power module and a control switch 50 arranged in the shell. The air supply device includes an air pump arranged in the shell and an air outlet nozzle 40 exposed to the shell. The power module is used to supply power to the air supply device, and the control switch 50 is used to control the on and off of the gas.

[0026] In one embodiment, the housing is generally pistol-shaped, that is, the paint spray gun 100 has a gun-shaped body. The gun-shaped body further has an integrally formed handle portion 10, a barrel portion 20 and a muzzle portion 30, the barrel portion 20 is transversely arranged at the top of the handle portion 10, and the muzzle portion 30 is arranged at the front end of the barrel portion 20. It should be noted that the gun-shaped body is formed by two injection-molded and substantially symmetrical half shells connected by a number of buckles and screws.

[0027] The muzzle portion 30 is used to penetrate and fix the paint container 200 and is set in a ring shape. An air outlet nozzle 40 is provided on the lower side of the muzzle portion 30. One end of the air outlet nozzle 40 is used to connect to the air pump. The other end of the air outlet nozzle 40 is tilted upward and can spray high-pressure airflow flowing through the discharge nozzle 210 of the paint container 200.

[0028] In one embodiment, the angle between the axis of the muzzle portion 30 and the center line of the grip portion 10 is an obtuse angle, so that the muzzle portion 30 is slightly tilted upward to prevent oil from dripping from the discharge nozzle 210 when the paint spray gun 100 is idle.

[0029] It is understandable that in order to facilitate the suction of paint, the inclination angle of the muzzle portion 30 should not be too large, and the angle between the axis of the muzzle portion 30 and the center line of the grip portion 10 can be set between 95° and 100°.

[0030] In one embodiment, the barrel portion 20 is provided with a substantially C-shaped slot 21 having a certain elasticity. When the paint container 200 is installed on the gun-shaped body, it is clamped in the slot 21, which facilitates the installation and use of the paint container 200.

[0031] In one embodiment, the opening of the slot 21 is arranged upward, and its cross section is an arc shape.

[0032] In one embodiment, the barrel portion 20 protrudes from the muzzle portion 30 to form a lower jaw portion 60 . The lower jaw portion 60 is hollow, and the air outlet nozzle 40 passes through the top end of the lower jaw portion 60 .

[0033] In one embodiment, the outer diameter of the muzzle portion 30 gradually decreases along a direction approaching the air outlet nozzle 40 .

[0034] In one embodiment, a limiting protrusion 31 is provided inside the muzzle 30, and the limiting protrusion 31 is used to be embedded in a preset limiting groove on the paint container 200 when the paint container 200 is inserted, so as to facilitate the installation and limiting of the paint container 200. In addition, the limiting protrusion 31 and the limiting groove are arranged so that when the paint container 200 is installed on the paint spray gun 100, the discharge nozzle 210 and the air outlet nozzle 40 are close to each other, and the distance between the two is 1 to 2 mm, so as to facilitate the airflow to suck out the oil and avoid gas waste.

[0035] The air outlet nozzle 40 is made of metal material to have high mechanical strength to avoid damage that affects the service life of the paint spray gun.

[0036] The control switch 50 includes a button. The housing is provided with a button mounting portion at the handle portion 10 . The button mounting portion forms a protective cover 11 protruding from the side of the housing. The button can elastically pass through the protective cover 11 .

[0037] The paint spray gun 100 of the utility model arranges the paint container 200 at the top and the air outlet nozzle 40 at the bottom, so that the oil in the paint container 200 can flow to the outlet nozzle 210 under the action of gravity during use, and the air flow with a relatively low pressure can smoothly suck out the oil, thereby reducing the amount of high-pressure gas used during spraying, reducing the volume of the air pump, and thus reducing the size of the paint spray gun 100, making it more convenient for users to use.

[0038] The above description is only a preferred embodiment of the utility model and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the utility model is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the above utility model. For example, the above features are replaced with the technical features of the utility model (but not limited to) with similar functions in the utility model of the utility model to form a technical solution.

[0039] Although the subject matter has been described in language specific to structural features and / or methodological logical actions, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. On the contrary, the specific features and actions described above are merely example forms of implementing the claims.

Claims

1. A paint spray gun, used to install a paint container and spray the paint in the paint container in a mist form, characterized in that: The gun-shaped body includes a handle, a barrel portion horizontally arranged at the top of the handle, and a muzzle portion arranged at the front end of the barrel portion. The muzzle portion is used to penetrate and fix a paint container and is arranged in a ring shape. An air outlet nozzle is arranged on the lower side of the muzzle portion. One end of the air outlet nozzle is used to be connected to an air pump, and the other end of the air outlet nozzle is arranged to be inclined upward and can spray a high-pressure airflow flowing through a discharge nozzle of the paint container.

2. The paint spray gun according to claim 1, characterized in that: The angle between the axis of the muzzle and the center line of the grip is an obtuse angle.

3. The paint spray gun according to claim 2, characterized in that: The gun barrel is provided with a clamping groove, and the paint container is clamped in the clamping groove when it is installed on the gun-shaped body.

4. The paint spray gun according to claim 3, characterized in that: The opening of the card slot is arranged upward, and its cross section is an arc shape.

5. The paint spray gun according to claim 1, characterized in that: A limiting protrusion is arranged on the inner side of the muzzle, and the limiting protrusion is used to be embedded in a preset limiting groove on the paint container when the paint container is inserted.

6. The paint spray gun according to claim 1, characterized in that: The gun-shaped body comprises a shell, the barrel portion and the muzzle portion are arranged at the upper end of the shell, and the grip portion is arranged at the lower end of the shell; the air pump is arranged inside the shell, and a control switch for controlling the on-off of the air path between the air outlet nozzle and the air pump is arranged on the shell.

7. The paint spray gun according to claim 6, characterized in that: The muzzle portion, the barrel portion and the grip portion are integrally formed.

8. The paint spray gun according to claim 6, characterized in that: The barrel portion protrudes from the muzzle portion to form a lower jaw portion, the lower jaw portion is hollow, and the air outlet nozzle passes through the top end of the lower jaw portion.

9. The paint spray gun according to claim 6, characterized in that: The control switch comprises a button, and the housing is provided with a button mounting portion at the handle portion, the button mounting portion forms a shield protruding from the side surface of the housing, and the button can elastically pass through the shield.

10. The paint spray gun according to claim 1, characterized in that: The outer diameter of the muzzle portion gradually decreases in a direction approaching the air outlet nozzle.

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