Small-particle-size atomizing spray gun

Abstract

The utility model discloses a small-particle-size atomizing spray gun, which belongs to the technical field of spray guns, and comprises a medium part, a connecting part and a spray head, the medium part comprises a liquid part and a gas part, and the gas part is provided with a pressure regulating valve and a pressure regulating knob; the liquid part is connected with a liquid pipeline, and the liquid pipeline is provided with a flow control valve; the gas part is connected with a gas pipeline; a Venturi tube is arranged at the front end of the connecting part, and the liquid pipeline and the gas pipeline are arranged in the connecting part and connected to the rear end of the Venturi tube; the front end of the spray head is hemispherical, discharging holes inclined in a divergent mode are formed in the front end of the spray head, a filter piece is connected between the hemispherical rear end and the internal threads in a clamped mode, and a rubber ring is connected to the rear end of the filter piece in a clamped mode. By arranging the pressure adjusting knob and the flow control valve, the pressure and the flow of gas and liquid can be accurately adjusted, fine control over the atomization process is achieved, the suitability of the gas-liquid mixing proportion is ensured, and therefore the atomization effect is optimized.

Description

Technical Field

[0001] The utility model belongs to the technical field of spray guns, and particularly relates to a small-particle-size atomizing spray gun. Background Art

[0002] In the existing technology, atomizing spray guns are widely used in many fields such as agriculture, industrial painting, medical treatment, and environmental protection to achieve uniform distribution and precise spraying of liquids. However, traditional atomizing spray guns have some limitations, especially in generating fine droplets. Common problems include large droplet sizes, easy clogging, low efficiency, and inconvenient maintenance. For example, in agricultural spraying, if the droplet size is too large, it will affect the uniform distribution of pesticides or fertilizers, reducing the use effect and the protection efficiency of crops. In the field of industrial painting, the atomization quality is directly related to the uniformity and adhesion of the coating. Larger droplets may cause unevenness on the coating surface, affecting the quality of the final product. Summary of the Invention

[0003] To solve the above-mentioned problems, the utility model discloses a small-particle-size atomizing spray gun, which provides better atomization effect, enhanced durability, and convenient maintenance performance. This can not only improve the operation efficiency but also ensure the spraying quality, meeting the high standards of modern agriculture and industry for fine operations.

[0004] To achieve the above object, the specific technical solution of this application is as follows:

[0005] A small-particle-size atomizing spray gun includes a medium part, a connecting part, and a nozzle. The medium part includes a liquid part and a gas part. The gas part is provided with a pressure regulating valve and a pressure regulating knob; the liquid part is connected to a liquid pipeline, and the liquid pipeline is provided with a flow control valve; the gas part is connected to a gas pipeline; the front end of the connecting part is provided with a Venturi tube, and the liquid pipeline and the gas pipeline are arranged in the connecting part and connected to the rear end of the Venturi tube; the front end of the connecting part is provided with an external thread, and the rear end of the nozzle is provided with an internal thread matching the external thread, thereby completing the mutual connection; the front end of the nozzle is hemispherical, and it is provided with divergently inclined discharge holes. A filter disc is clamped between the rear end of the hemispherical shape and the internal thread, and a rubber ring is clamped at the rear end of the filter disc.

[0006] Based on the above technical features, preferably, the end of the gas pipeline includes a gas distributor, and the gas distributor has a plurality of channels for optimizing the distribution of the gas flowing to the Venturi tube.

[0007] Based on the above technical features, preferably, the connecting part and the nozzle are made of silicon carbide material.

[0008] Based on the above technical features, preferably, the inner walls of the gas pipeline and the liquid pipeline are sprayed with a nickel-based alloy coating.

[0009] Based on the above technical features, preferably, the filter sheet is made of microporous material and has high filtration efficiency and anti-clogging characteristics.

[0010] Based on the above technical features, preferably, the liquid part is provided with an addition port.

[0011] Compared with the prior art, the beneficial effects of the present application are as follows:

[0012] By setting the pressure regulating knob and the flow control valve, the spray gun of the present utility model can precisely adjust the pressure and flow rate of gas and liquid, realize fine control of the atomization process, ensure the suitability of the gas-liquid mixing ratio, thereby optimizing the atomization effect and generating more uniform and finer droplets;

[0013] By adopting a Venturi tube and an optimized gas-liquid mixing structure, the droplet size is effectively reduced, and more uniform and finer droplets are generated, which is suitable for application scenarios with extremely high requirements for atomization quality;

[0014] The design of the gas distributor ensures that the gas can be evenly distributed before entering the Venturi tube, improves the efficiency of gas-liquid mixing, and thus enhances the atomization effect;

[0015] The design of the hemispherical nozzle and the diverging inclined discharge holes ensures a uniform atomization effect when the liquid is sprayed, has a wide spraying range, and avoids the common problem of uneven spraying of traditional spray guns;

[0016] The snap-in filter sheet reduces the maintenance frequency and cost of the spray gun, and at the same time, the wear-resistant and corrosion-resistant design reduces the replacement frequency caused by wear or corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic cross-sectional structure diagram of a small-droplet atomizing spray gun of the present utility model;

[0018] LIST OF DRAWING REFERENCES:

[0019] 1. Nozzle; 101. Discharge hole; 2. Filter sheet; 3. Connection part; 4. Venturi tube; 5. Liquid part; 6. Addition port; 7. Gas part; 8. Liquid pipeline; 9. Flow control valve; 10. Gas pipeline; 11. Pressure regulating knob; 12. Gas distributor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following further clarifies the present invention in conjunction with the drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0021] It should be noted that the terms "upper", "lower", "left", "right", "front" and "rear" used in the following description refer to the directions in the attached drawings, and the terms "inner" and "outer" refer to the directions towards or away from the geometric center of a specific component respectively. In addition, the terms "mounted", "connected" and "joined" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] As Figure 1 shown, a small particle size atomizing spray gun includes a medium part, a connecting part 3 and a nozzle 1, and the medium part includes a liquid part 5 and a gas part 7.

[0023] The gas part 5 is provided with a pressure regulating valve and a pressure regulating knob 11; the liquid part 5 is connected to a liquid pipeline 8, and the liquid pipeline 8 is provided with a flow control valve 9; the gas part 5 is connected to a gas pipeline 10; a Venturi tube 4 is provided at the front end of the connecting part 3, and the liquid pipeline 8 and the gas pipeline 10 are arranged inside the connecting part and connected to the rear end of the Venturi tube 4; the front end of the connecting part 3 is provided with an external thread, and the rear end of the nozzle is provided with an internal thread matching the external thread, thereby completing the mutual connection.

[0024] The front end of the nozzle 1 is hemispherical, and it is provided with diverging and inclined discharge holes 101. A filter sheet 2 is clamped between the rear end of the hemispherical shape and the internal thread, and a rubber ring is clamped at the rear end of the filter sheet.

[0025] Preferably, the end of the gas pipeline 10 includes a gas distributor 12, and the gas distributor 12 has a plurality of channels for optimizing the distribution of the gas flowing towards the Venturi tube.

[0026] Preferably, the connecting part 3 and the nozzle 1 are made of silicon carbide material, which improves the wear resistance and chemical resistance of the spray gun.

[0027] Preferably, the inner walls of the gas pipeline 10 and the liquid pipeline 8 are sprayed with a nickel-based alloy coating to further enhance the wear resistance and corrosion resistance.

[0028] Preferably, the filter sheet 2 is made of microporous material and has high filtration efficiency and anti-blocking characteristics. The nozzle is regularly disassembled to clean the filter sheet and the spray holes to keep the spray gun in the best working state.

[0029] Preferably, the liquid part 5 is provided with an addition port 6, which is convenient for adding or replacing the liquid and improves the flexibility of use.

[0030] In summary, the structure of this application is simple and is based on the gas-liquid mixing atomization technology. By precisely controlling the pressure and flow rate of the gas and liquid, the full mixing and acceleration of the gas and liquid in the Venturi tube are achieved, and finally fine droplets are formed at the nozzle. The working process includes four main steps: assembly, adjustment, atomization spraying, and maintenance, ensuring the efficient operation and long-term use of the spray gun.

[0031] It should be noted that the attached drawings only illustrate the technical idea of the present invention, and the protection scope of the present invention cannot be limited by this shape. For those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements all fall within the protection scope of the claims of the present invention.

Claims

1. A small particle size atomizing spray gun, characterized in that: It includes a medium part, a connection part and a nozzle. The medium part includes a liquid part and a gas part. The gas part is provided with a pressure regulating valve and a pressure regulating knob; the liquid part is connected to a liquid pipeline, and the liquid pipeline is provided with a flow control valve; the gas part is connected to a gas pipeline; the front end of the connection part is provided with a Venturi tube, and the liquid pipeline and the gas pipeline are arranged inside the connection part and connected to the rear end of the Venturi tube; the front end of the connection part is provided with an external thread, and the rear end of the nozzle is provided with an internal thread matching the external thread, thereby completing the mutual connection; the front end of the nozzle is hemispherical, and it is provided with divergently inclined discharge holes, a filter disc is clamped between the rear end of the hemispherical shape and the internal thread, and a rubber ring is clamped at the rear end of the filter disc.

2. The small-particle-size atomizing spray gun according to claim 1, wherein: The end of the gas pipeline includes a gas distributor which has a plurality of channels for optimizing the distribution of the gas flowing to the Venturi tube.

3. A small-particle-size atomizing spray gun according to claim 1, characterized in that: The connection part and the nozzle are made of silicon carbide material.

4. The small-particle-size atomizing spray gun according to claim 1, characterized in that: The inner walls of the gas pipeline and the liquid pipeline are sprayed with a nickel-based alloy coating.

5. The small-particle-size atomizing spray gun according to claim 1, characterized in that: The filter disc is made of microporous material.

6. The small particle size atomizing spray gun according to claim 1, characterized in that: The liquid part is provided with an addition port.

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