A paint spray gun

Abstract

The present application provides a paint spray gun, which includes: a gun body, a paint pot and a handle; one end of the gun body is a spray head, and the other end is fixedly connected to the handle; the paint pot is arranged at one end close to the spray head and is connected to the gun body through a connecting pipe; a heating component is arranged on the surface of the handle, and the heating component includes a first power supply, a heating switch, an electric heating pipe and a heat-conducting layer, the first power supply is fixed to the bottom of the handle, the heating switch is arranged on the side of the gun body close to the handle end, the heating switch is respectively connected to the power supply and the electric heating pipe, the electric heating pipe surrounds the surface of the handle to form a heating layer, and the heat-conducting layer is sleeved on the outside of the heating layer. By arranging the heating component at the handle, the handle can be heated in a cold environment, which increases the comfort of the operator and reduces the discomfort or frostbite of the hand caused by low temperature. At the same time, the comfortable operating environment can reduce the number of times the operator needs to take frequent breaks due to the cold, thereby improving work efficiency.

Description

Technical Field

[0001] The present application relates to the field of spray guns, and in particular to a paint spray gun. Background Art

[0002] A paint spray gun is a tool for spraying paint. It is used for surface treatment of products and is a type of coating equipment. It uses compressed air to atomize the paint into fine paint droplets, which are then sprayed onto the surface of the object under the drive of the airflow to achieve the purpose of anti-corrosion, beautification, and marking. When in use, it needs to be connected to an external air pressure device, which uses compressed air or other means as a power source to convert the paint into fine paint droplets, which are evenly sprayed onto the surface of various objects to form a coating.

[0003] Paint spray guns are widely used in various industries and need to be used in various temperature and climate conditions. If the paint spray gun is operated for a long time in winter or in low temperature environments, the low temperature at the handle may cause discomfort or even frostbite to the operator's hands, affecting operating efficiency and safety. Wearing heavy gloves to keep warm may make it more difficult for the operator to accurately control the fine adjustments of the paint spray gun, further reducing work efficiency. Utility Model Content

[0004] In view of this, the present application provides a paint spray gun to solve the problem of the inconvenience of using the paint spray gun in winter.

[0005] To achieve the above purpose, the present application provides a paint spray gun, which adopts the following technical solution:

[0006] The present application provides a paint spray gun, comprising: a gun body, a paint pot and a handle; one end of the gun body is a spray head, and the other end is fixedly connected to the handle; the paint pot is arranged at one end close to the spray head and is connected to the gun body through a connecting pipe;

[0007] A heating component is provided on the surface of the handle, and the heating component includes a first power supply, a heating switch, an electric heating tube and a heat-conducting layer. The first power supply is fixed to the bottom of the handle, and the heating switch is provided on the side of the gun body close to the handle end. The heating switch is respectively connected to the power supply and the electric heating tube. The electric heating tube surrounds the surface of the handle to form a heating layer, and the heat-conducting layer is sleeved on the outside of the heating layer.

[0008] Optionally, an insulating protective layer is also included, and the insulating protective layer is arranged between the heating layer and the heat conducting layer.

[0009] Optionally, the material of the insulating protective layer is mica.

[0010] Optionally, the electric heating tube includes a tube body, an electric heating wire and an electric heating plate, the electric heating wire and the electric heating plate are arranged in the tube body, and the electric heating wire is fixed on the surface of the electric heating plate.

[0011] Optionally, a stirring assembly is provided in the paint pot, and the stirring assembly is fixed above the bottom plate of the paint pot.

[0012] Optionally, the stirring assembly includes: a second power supply, a stirring switch, a motor, a rotating shaft, and a stirring shaft; the motor is fixed on the bottom plate of the paint pot; the rotating shaft is arranged at the output end of the motor; the stirring shaft is fixed to the rotating shaft; the stirring switch is fixed to the outer wall of the paint pot, and one end is connected to the second power supply, and the other end is connected to the motor.

[0013] Optionally, there are multiple stirring shafts, each stirring shaft is arranged perpendicular to the rotating shaft, and one end of each stirring shaft is welded and fixed to the rotating shaft.

[0014] Optionally, an air inlet is provided at the bottom of the handle, and an air pressure regulating valve is provided on one side of the air inlet.

[0015] Optionally, an adjusting spray cap is further included, wherein the adjusting spray cap is arranged between the spray head and the gun body and is connected to the connecting pipe.

[0016] Optionally, the heating component further includes a first circuit board, which is respectively connected to the first power supply and the heating switch for overheating protection.

[0017] The present application provides a paint spray gun, comprising: a gun body, a paint pot and a handle; one end of the gun body is a spray head, and the other end is fixedly connected to the handle; the paint pot is arranged at one end close to the spray head and is connected to the gun body through a connecting pipe; a heating component is arranged on the surface of the handle, and the heating component comprises a first power supply, a heating switch, an electric heating pipe and a heat-conducting layer, the first power supply is fixed to the bottom of the handle, the heating switch is arranged on the side of the gun body close to the handle end, the heating switch is connected to the power supply and the electric heating pipe respectively, the electric heating pipe surrounds the surface of the handle to form a heating layer, and the heat-conducting layer is sleeved on the outside of the heating layer. By arranging a heating component at the handle, the handle can be heated in a cold environment, increasing the comfort of the operator, reducing hand discomfort or frostbite caused by low temperature, and making long-term spraying work easier and safer. At the same time, a comfortable operating environment can reduce the number of times the operator needs to take frequent breaks due to the cold, thereby improving work efficiency, and keeping the hands warm also helps maintain the flexibility of the hands and the accuracy of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application and, together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A schematic diagram of the structure of a paint spray gun provided in an embodiment of the present application;

[0020] Figure 2 A cross-sectional view of a paint spray gun and paint pot provided in an embodiment of the present application;

[0021] Figure 3 A cross-sectional view of a heating assembly of a paint spray gun provided in an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the internal structure of a paint spray gun heating assembly provided in an embodiment of the present application;

[0023] Figure 5 A cross-sectional view of a heating assembly of a paint spray gun provided in an embodiment of the present application.

[0024] Description of reference numerals:

[0025] 1-gun body; 2-paint pot; 3-connecting pipe; 4-adjusting spray cap; 5-spray head; 6-handle; 7-air inlet; 8-air pressure regulating valve; 9-stirring component; 10-stirring switch; 11-second power supply; 12-second circuit board; 13-motor; 14-rotating shaft; 15-stirring shaft; 16-heating component; 17-first power supply; 18-first circuit board; 19-tube body; 20-electric heating plate; 21-electric heating wire; 22-insulating protective layer; 23-thermal conductive layer; 24-heating switch.

[0026] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0027] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0028] Secondly, it should be noted that in the description of the present application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.

[0029] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0030] Paint spray guns are important coating equipment used for product surface treatment and are widely used in various industries. Their main function is to atomize the paint through compressed air and spray it onto the surface of the object to be coated to achieve the purpose of anti-corrosion, beautification, marking, etc. The paint is transformed into fine paint droplets through compressed air or other means as a power source and evenly sprayed onto the surface of various objects to form a layer of coating.

[0031] The paint spray gun is mainly composed of a nozzle, a needle valve, a trigger and a paint container. The paint is pressed into the nozzle by high-pressure air or a hydraulic pump, and tiny paint droplets are formed through the tiny opening of the nozzle to achieve paint atomization. The operator can adjust the flow control valve and fan adjustment knob on the paint spray gun to accurately control the flow rate and spray amplitude of the paint to achieve different spraying effects and requirements.

[0032] Paint spray guns are widely used in various industries and need to be used in various temperature and climate conditions. If you spray for a long time in winter or in low temperature environments, the handle may cause frostbite to the palm due to low temperature, which makes the operator less comfortable and less efficient in cold environments. If you operate the paint spray gun in a cold environment for a long time, the low temperature of the handle may cause discomfort or even frostbite to the operator's hands, affecting operating efficiency and safety. Wearing heavy gloves to keep warm may make it more difficult for the operator to accurately control the subtle adjustments of the paint spray gun, reducing work efficiency.

[0033] Therefore, the inventor proposes a paint spray gun to solve the problem that the paint spray gun is inconvenient to use in winter.

[0034] The present application is described in detail below with reference to the accompanying drawings and specific embodiments:

[0035] Figure 1 A schematic diagram of the structure of a paint spray gun provided in an embodiment of the present application; Figure 2A cross-sectional view of a paint spray gun and paint pot provided in an embodiment of the present application; Figure 3 A cross-sectional view of a heating assembly of a paint spray gun provided in an embodiment of the present application; Figure 4 A schematic diagram of the internal structure of a paint spray gun heating assembly provided in an embodiment of the present application; Figure 5 A cross-sectional view of a heating assembly of a paint spray gun provided in an embodiment of the present application.

[0036] Reference Figures 1 to 5 As shown, a paint spray gun provided in an embodiment of the present application includes: a gun body 1, a paint pot 2 and a handle 6; one end of the gun body 1 is a spray head 5, and the other end is fixedly connected to the handle 6; the paint pot 2 is arranged at one end close to the spray head 5 and is connected to the gun body 1 through a connecting pipe 3.

[0037] Specifically, the gun body 1 is the main structure of the paint spray gun, connecting all other components, not only providing mechanical support, but also ensuring precise control and stability during the painting process. A spray head 5 is installed at one end of the gun body 1 for uniformly atomizing the paint and spraying it onto the target surface.

[0038] The paint pot 2 is used to store the paint to be sprayed, and can continuously supply paint during the painting process to ensure the continuity and consistency of the spraying; the paint pot 2 is located at one end of the gun body 1 close to the nozzle 5, and is tightly connected to the gun body 1 through the connecting pipe 3 to ensure that the paint can flow smoothly to the nozzle. The connecting pipe 3 ensures the smooth transmission of the paint from the paint pot 2 to the nozzle to prevent paint leakage.

[0039] The handle 6 is fixed to the other end of the gun body 1, providing a comfortable holding position for the operator, thereby improving the accuracy and convenience of operation.

[0040] The surface of the handle 6 is provided with a heating assembly 16, which includes a first power supply 17, a heating switch 24, an electric heating pipe and a heat-conducting layer 23. The first power supply 17 is fixed to the bottom of the handle 6, and the heating switch 24 is provided on the side of the gun body 1 close to the end of the handle 6. The heating switch 24 is connected to the power supply and the electric heating pipe respectively. The electric heating pipe surrounds the surface of the handle 6 to form a heating layer, and the heat-conducting layer 23 is sleeved on the outside of the heating layer. The heat-conducting layer 23 is made of metal aluminum.

[0041] Specifically, the first power source 17 is located at the bottom of the handle 6, which can better ensure the stability of the power source and facilitate the management and maintenance of the power source. By integrating the power source at the bottom of the handle 6, the layout of the entire heating system is more compact and simple. The heating switch 24 is set on the side of the gun body 1 close to the end of the handle 6, so that the operator can easily control the switch with the thumb or index finger without moving the line of sight or pausing the spraying operation, which greatly improves the convenience and safety of operation.

[0042] The electric heating tubes surround the surface of the handle 6 to form a heating layer that can evenly distribute heat, so that the entire handle 6 area can be effectively heated, improve the heating efficiency, and avoid local overheating that may cause discomfort to the operator's hands. The heat-conducting layer 23 covers the outside of the heating layer and can play a protective role to prevent the electric heating tubes from being directly exposed to the external environment and being damaged; the heat-conducting layer 23 can also effectively transfer heat to the handle 6, while preventing the heat from being lost too quickly, and keeping the temperature of the handle 6 stable.

[0043] In low temperature or cold working environment, the heated grip 6 can significantly increase the comfort of the operator, reduce hand discomfort or frostbite caused by low temperature, and make long-term spraying work easier and safer. A comfortable operating environment can reduce the number of frequent breaks required by the operator due to cold, thereby improving work efficiency. In addition, keeping the hands warm also helps maintain hand flexibility and operating accuracy.

[0044] The present application provides a paint spray gun, which can heat the handle 6 in a cold environment by arranging a heating component 16 at the handle, thereby increasing the operator's comfort, reducing hand discomfort or frostbite caused by low temperature, and making long-term spraying work easier and safer. At the same time, a comfortable operating environment can reduce the number of frequent breaks required by the operator due to the cold, thereby improving work efficiency, and keeping the hands warm also helps maintain hand flexibility and operating accuracy.

[0045] In some embodiments, the paint spray gun further includes an insulating protective layer 22 , and the insulating protective layer 22 is disposed between the heating layer and the heat conducting layer 23 .

[0046] Specifically, the main function of the insulating protective layer 22 is to provide electrical insulation to prevent current from leaking to the outside of the handle 6, thereby protecting the operator and preventing leakage from causing harm to the operator. The insulating layer can withstand high heat resistance and can work stably even when the heating function is used continuously.

[0047] In some embodiments, the insulating protection layer 22 is made of mica.

[0048] Specifically, the insulating protective layer 22 is made of high-performance mica material, which not only has good high temperature resistance, but also can effectively isolate the current to ensure the safety of the operator during use. The insulating protective layer 22 is arranged between the heating layer and the heat-conducting layer 23, which not only protects the heating element, but also prevents the damage to the user caused by overheating.

[0049] In some embodiments, the electric heating tube includes a tube body 19 , a heating wire 21 and an electric heating plate 20 . The heating wire 21 and the electric heating plate 20 are arranged in the tube body 19 , and the heating wire 21 is fixed on the surface of the electric heating plate 20 .

[0050] Specifically, the electric heating plate 20 and the electric heating wire 21 are fixed in the tube body 19. This structural design makes heating more uniform and avoids the generation of local hot spots. The electric heating wire 21 is fixed on the surface of the electric heating plate 20, and the heat can be quickly and evenly transferred to various parts of the handle 6 through the material with high thermal conductivity.

[0051] In some embodiments, a stirring component 9 is disposed in the paint pot 2 , and the stirring component 9 is fixed above the bottom plate of the paint pot 2 .

[0052] Specifically, the stirring component 9 is fixed above the bottom plate of the paint pot 2, so that the stirring can directly act on the center position of the paint, thereby effectively promoting the mixing and circulation of the entire paint, stirring the sediment therein evenly, preventing internal paint blockage, and avoiding pigment precipitation or stratification, ensuring color consistency and coating quality during spraying.

[0053] In some embodiments, the stirring component 9 includes: a second power supply 11, a stirring switch 10, a motor 13, a rotating shaft 14, and a stirring shaft 15; the motor 13 is fixed on the bottom plate of the paint pot 2; the rotating shaft 14 is arranged at the output end of the motor 13; the stirring shaft 15 is fixed to the rotating shaft 14; the stirring switch 10 is fixed to the outer wall of the paint pot 2, and one end is connected to the second power supply 11, and the other end is connected to the motor 13.

[0054] Specifically, the second power supply 11 provides the required power for the stirring motor 13; the operator can control the start and stop of the stirrer through the stirring switch 10, which is convenient for the operator to control the stirring according to the actual paint condition, increasing the flexibility of the operation. The motor 13 is fixed on the bottom plate of the paint pot 2, has high stability, and improves the stirring effect. The rotating shaft 14 connects the output end of the motor 13 and the stirring shaft 15, effectively transmitting the power of the motor 13 to the stirring shaft 15, and realizing efficient paint mixing. The stirring shaft 15 is a rod-shaped structure, and blades with specific angles can also be selected to promote effective flow and mixing of the paint.

[0055] The stirring assembly 9 also includes a second circuit board 12, which is fixed to one side of the motor 13 and has an overload protection function. When the motor 13 is overloaded or the circuit is abnormal, the second circuit board 12 can automatically cut off the power supply to prevent the motor 13 from overheating or burning, thereby extending the service life of the equipment.

[0056] In some embodiments, there are multiple stirring shafts 15 , and the stirring shaft 15 is disposed perpendicular to the rotating shaft 14 , and one end of the stirring shaft 15 is welded and fixed to the rotating shaft 14 .

[0057] Specifically, multiple stirring shafts 15 can greatly improve the mixing efficiency of the paint. Each stirring shaft 15 works at a different angle or position, which can cover a larger range, thereby promoting more uniform and thorough mixing of the paint. The stirring shaft 15 is arranged perpendicular to the rotating shaft 14 to more effectively create a fluid dynamic effect, so that the shear force generated during stirring is more uniform, avoiding local over-stirring or insufficient stirring, thereby ensuring the stability and uniformity of the paint. Multi-axis stirring can significantly shorten the paint preparation time, thereby improving the spraying efficiency.

[0058] The welding fixation of the stirring shaft 15 and the rotating shaft 14 can withstand long-term continuous use, and can also ensure stability and durability when stirring in high-viscosity coatings, thereby reducing long-term maintenance costs and equipment failure rates.

[0059] In some embodiments, an air inlet 7 is disposed at the bottom of the handle 6 , and an air pressure regulating valve 8 is disposed on one side of the air inlet 7 .

[0060] Specifically, the air inlet 7 arranged at the bottom of the handle 6 is more convenient to connect to the compressed air source to provide the required compressed air for the spray gun. The air inlet 7 is arranged at the bottom of the handle 6 to make the air flow channel smoother and reduce the air pressure loss caused by the bending or excessive length of the pipeline.

[0061] The air pressure regulating valve 8 is located on one side of the air inlet 7, allowing the operator to accurately adjust the air pressure according to the viscosity of the paint and the spraying requirements; reasonable air pressure regulation can ensure a uniform and delicate spraying effect and avoid coating defects caused by excessive or insufficient air pressure. The air pressure regulating valve 8 enables the operator to quickly adjust and set the most suitable air pressure according to different working environments and paint types, greatly improving the adaptability and flexibility of the operation.

[0062] In some embodiments, the paint spray gun further includes an adjustable spray cap 4 , which is disposed between the spray head 5 and the gun body 1 and is connected to the connecting pipe 3 .

[0063] Specifically, the adjustment spray cap 4 is located between the nozzle 5 and the gun body 1. By changing the path of the paint or limiting the diffusion range of the paint, different spraying effects can be achieved. For example, it can be adjusted to point-shaped, mist-shaped or fan-shaped spraying to meet different coating requirements.

[0064] By adjusting the spray cap 4, the operator can adjust the output and range of the spray according to the specific requirements of the job, such as the thickness and coverage area of ​​the coating, which helps to improve the speed and efficiency of the spraying. Accurate spraying control reduces paint waste and overspray, reducing material costs.

[0065] In some embodiments, the heating assembly 16 further includes a first circuit board 18 , which is connected to the first power source 17 and the heating switch 24 , respectively, for overheat protection.

[0066] Specifically, the first circuit board 18 monitors the heating component 16 by setting a comparison circuit or a protection circuit. When the temperature exceeds a preset safety threshold, the power supply is automatically cut off to prevent equipment damage or fire caused by overheating. This intelligent control ensures safety and stability during long-term use.

[0067] The first circuit board 18 may also be integrated with an LED indicator light or other visual prompts to provide a status display for the operator. For example, when the heating component 16 is overheated, an LED light of a specific color will light up to remind the user to handle it in time, thereby increasing the convenience and safety of operation.

[0068] Those skilled in the art will easily conceive of other implementations of the present application after considering the specification and practicing the technical solutions disclosed herein.

[0069] This application is intended to cover any modifications, uses or adaptive changes of the present application, which follow the general principles of the present application and include common knowledge or customary technical means in the technical field that are not disclosed in this application.

[0070] The description and examples are to be considered as exemplary only, and the true scope and spirit of the present application are indicated by the claims. It should be understood that the present application is not limited to the precise structures that have been described and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A paint spray gun, characterized in that: include: A gun body, a paint pot and a handle; one end of the gun body is a spray head, and the other end is fixedly connected to the handle; The paint pot is arranged at one end close to the spray head and is connected to the gun body via a connecting pipe; A heating component is provided on the surface of the handle, and the heating component includes a first power supply, a heating switch, an electric heating tube and a heat-conducting layer. The first power supply is fixed to the bottom of the handle, and the heating switch is provided on the side of the gun body close to the handle end. The heating switch is respectively connected to the power supply and the electric heating tube. The electric heating tube surrounds the surface of the handle to form a heating layer, and the heat-conducting layer is sleeved on the outside of the heating layer.

2. The paint spray gun according to claim 1, characterized in that: It also includes an insulating protective layer, which is arranged between the heating layer and the heat conducting layer.

3. The paint spray gun according to claim 2, characterized in that: The material of the insulating protective layer is mica.

4. The paint spray gun according to claim 1, characterized in that: The electric heating tube comprises a tube body, an electric heating wire and an electric heating plate. The electric heating wire and the electric heating plate are arranged in the tube body, and the electric heating wire is fixed on the surface of the electric heating plate.

5. The paint spray gun according to claim 1, characterized in that: A stirring component is arranged in the paint pot, and the stirring component is fixed above the bottom plate of the paint pot.

6. The paint spray gun according to claim 5, characterized in that: The stirring assembly includes: a second power supply, a stirring switch, a motor, a rotating shaft, and a stirring shaft; the motor is fixed on the bottom plate of the paint pot; the rotating shaft is arranged at the output end of the motor; the stirring shaft is fixed to the rotating shaft; the stirring switch is fixed to the outer wall of the paint pot, and one end is connected to the second power supply, and the other end is connected to the motor.

7. The paint spray gun according to claim 6, characterized in that: There are multiple stirring shafts, each stirring shaft is arranged perpendicular to the rotating shaft, and one end of each stirring shaft is welded and fixed to the rotating shaft.

8. The paint spray gun according to claim 1, characterized in that: An air inlet is arranged at the bottom of the handle, and an air pressure regulating valve is arranged on one side of the air inlet.

9. The paint spray gun according to claim 1, characterized in that: It also includes an adjusting spray cap, which is arranged between the spray head and the gun body and is communicated with the connecting pipe.

10. The paint spray gun according to claim 1, characterized in that: The heating component also includes a first circuit board, which is connected to the first power supply and the heating switch respectively for overheating protection.

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