A new type of spray gun nozzle

Abstract

The utility model relates to a novel spray gun nozzle, adopt the technical scheme is: including the spray gun body, the right end spout in the spray gun body is screwed and is installed the nozzle, the nozzle includes the middle pipeline, the right end fixed connection conical jet orifice of middle pipeline, the right end fixed connection funnel shape nozzle of conical jet orifice, the fixed ring is fixedly sheathed in the peripheral middle part of middle pipeline, the circumference array of fixed ring's left and right side wall is opened and is equipped with a plurality of gas holes, the left edge of fixed ring's outside wall left side extends and forms the shaft sleeve, the right edge of fixed ring's outside wall right side is fixedly connected sealing disc. The utility model has the advantages that: adopt the circumference array of porous design, can scatter material from multiple point positions simultaneously, cooperate the structure of conical jet orifice and funnel shape nozzle, make material be fully broken under the action of airflow, atomized particle is more fine, distribution is more uniform, improve the spraying effect.

Description

Technical Field

[0001] This utility model belongs to the field of spray gun nozzle technology and relates to a novel spray gun nozzle. Background Technology

[0002] A spray gun for spraying paint consists of a gun body with a nozzle. The nozzle typically contains a spray tip to atomize the paint at high operating speeds. Currently, the nozzle is usually installed at the gun head within the gun body. By increasing the fluid velocity and disrupting the fluid's continuity, atomization is achieved, thus improving the spraying effect.

[0003] Existing Chinese patent CN218637653U discloses an atomizing spray gun nozzle. It includes a body, an atomizing block at the center of the upper surface of the body, and a connector on the lower surface of the body. The body has an air outlet hole arranged annularly around the atomizing block. The outer surface of the connector has a threaded groove for connection with the spray gun head, and the connector has a connecting channel inside. An atomizing port is located at the end of the atomizing block away from the body, and the atomizing port has an inverted conical opening inside. In this invention, the body is installed at the spray gun head via the connector, the connecting channel communicates with the paint powder outlet end, and the air outlet hole communicates with the air outlet end.

[0004] However, the aforementioned atomizing nozzle, during use, suffers from poor material distribution uniformity due to the atomizing groove being located on the outer wall of the atomizing port and having a slanted bottom. This easily leads to localized flow velocity differences, affecting the consistency of atomized particles. Furthermore, while the nozzle relies on annular air outlets for secondary atomization, the secondary atomization effect is significantly weakened because the atomizing groove from the first atomization stage fails to adequately refine the material. This results in poor mist width and adhesion, limiting spraying efficiency and quality. Therefore, this invention provides a novel spray gun nozzle to solve these problems. Utility Model Content

[0005] In view of the problems existing in the prior art, this utility model discloses a novel spray gun nozzle. The technical solution adopted is as follows: it includes a spray gun body, and a nozzle is screwed into the nozzle at the right end of the spray gun body. The nozzle includes a central pipe, and a conical spray nozzle is fixedly connected to the right end of the central pipe. A funnel-shaped nozzle is fixedly connected to the right end of the conical spray nozzle. A fixing ring is fixedly sleeved in the middle of the outer periphery of the central pipe. Several air holes are circumferentially arranged on the left and right sidewalls of the fixing ring. The left edge of the outer sidewall of the fixing ring extends to the left to form a bushing, and a sealing disc is fixedly connected to the right edge of the outer sidewall of the fixing ring.

[0006] As a preferred embodiment of this utility model, the outer edge of the left end of the central pipe is chamfered.

[0007] As a preferred embodiment of this utility model, the outer wall of the right end of the central pipe is provided with an external hexagon; by providing an external hexagon, it is convenient to use a wrench to tighten or remove the nozzle from the spray port on the right side of the spray gun body.

[0008] As a preferred embodiment of this utility model, the funnel-shaped nozzle has a plurality of atomizing holes arranged in a circular array along the edge of its conical inner sidewall, which are connected to the outside. By creating atomizing holes in a circular array along the edge of the conical inner sidewall of the funnel-shaped nozzle, the continuity of the fluid is broken, and the fluid is broken into finer atomized particles. At the same time, the circular distribution layout makes the particles disperse more evenly, avoiding local atomization that is too coarse or too fine, thereby improving the fineness and uniformity of the overall atomization effect.

[0009] As a preferred embodiment of this utility model, a sealing ring is fixedly provided on the left and right sides at the connection between the bushing and the fixed ring, and the surface of the sealing ring is threaded.

[0010] As a preferred embodiment of this utility model, a limiting protrusion is fixedly provided at the part where the right side of the sealing disc connects with the right end of the fixing ring; by providing the limiting protrusion, it is convenient to rotate and limit the adjustment gun cap that is movably inserted into the nozzle.

[0011] The beneficial effects of this utility model are:

[0012] The atomizing holes on the conical inner wall of the funnel-shaped nozzle adopt a circumferential array multi-pore design, which can disperse materials from multiple points at the same time. Combined with the structure of the conical spray nozzle and the funnel-shaped nozzle, the materials are fully broken down under the action of airflow, and the atomized particles are finer and more evenly distributed.

[0013] The atomizing holes are located on the edge of the conical inner wall of the funnel-shaped nozzle. Combined with the air holes on the fixing ring, the fluid convergence and diffusion characteristics of the conical structure can be utilized to achieve efficient gas-liquid mixing and atomization. Compared with the simple diversion of the existing atomizing tank, the fluid dynamics are utilized more fully, the atomization efficiency is higher, and the spraying effect is improved. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the nozzle of this utility model;

[0016] Figure 3 This is a cross-sectional view of the nozzle of this utility model;

[0017] Figure 4 This is a schematic diagram of the nozzle installation of this utility model.

[0018] In the diagram: 1-Spray gun body, 11-Air inlet, 12-Air pressure adjustment knob, 13-Paint flow adjustment knob, 14-Spray width adjustment knob, 15-Trigger switch, 16-Paint inlet, 2-Nozzle, 21-Central pipe, 211-External hexagon, 22-Conical spray nozzle, 23-Funnel-shaped nozzle, 231-Atomizing hole, 24-Fixing ring, 241-Air hole, 242-Sleeve, 243-Sealing ring, 244-Thread, 25-Sealing disc, 251-Limiting protrusion ring, 3-Adjusting gun cap, 4-Nut. Detailed Implementation

[0019] Example 1

[0020] like Figures 1 to 4 As shown, the novel spray gun nozzle of this utility model adopts the following technical solution: it includes a spray gun body 1, an air inlet 11 is provided on the lower left side of the handle of the spray gun body 1, an air pressure adjustment knob 12 is provided on the lower right side of the handle of the air inlet 11, a paint flow adjustment knob 13 is provided on the right side of the spray gun body, a spray width adjustment knob 14 is provided on the upper part of the spray gun body above the paint flow adjustment knob 13, a trigger switch 15 is provided in the lower middle part of the spray gun body 1, and a paint inlet 16 is provided on the front side wall of the spray nozzle on the right side of the spray gun body 1.

[0021] A nozzle 2 is screwed into the nozzle at the right end of the spray gun body 1. The nozzle 2 includes a central pipe 21. The outer edge of the left end of the central pipe 21 is tapered and chamfered. An external hexagon 211 is formed on the outer wall of the right end of the central pipe 21. A tapered spray nozzle 22 is fixedly connected to the right end of the central pipe 21. A funnel-shaped nozzle 23 is fixedly connected to the right end of the tapered spray nozzle 22. A plurality of atomizing holes 231 communicating with the outside are arranged in a circular array on the edge of the tapered inner sidewall of the funnel-shaped nozzle 23. A fixed sleeve is fitted on the middle part of the outer periphery of the central pipe 21. A fixing ring 24 is provided, and a plurality of air holes 241 are circumferentially arranged on the left and right sidewalls of the fixing ring 24. The left edge of the outer sidewall of the fixing ring 24 extends to the left to form a bushing 242. A sealing ring 243 is fixedly provided on the left and right sides at the connection between the bushing 242 and the fixing ring 24. The surface of the sealing ring 243 is threaded 244. A sealing disc 25 is fixedly connected to the right edge of the outer sidewall of the fixing ring 24. A limiting protrusion ring 251 is fixedly provided at the connection between the right side of the sealing disc 25 and the right end of the fixing ring 24.

[0022] The external rotation of the nozzle 2 is also fitted with an adjusting cap 3;

[0023] The outer wall of the right end nozzle of the spray gun body 1 outside the adjusting gun cap 3 is screwed with a nut 4 to fix the adjusting gun cap 3.

[0024] The working principle of this utility model is as follows: When in use, the device is activated by pulling the trigger switch 15 of the spray gun body 1. Air enters through the air inlet 11, and its pressure can be adjusted by the air pressure adjustment knob 12. After the paint enters through the paint inlet 16, the flow rate is adjusted by the paint flow rate adjustment knob 13, and then flows into the central pipe 21 of the nozzle 2, and is delivered to the funnel-shaped nozzle 23 through the conical spray nozzle 22. At the same time, the air holes 241 of the circumferential array on the fixing ring 24 introduce airflow, mixes with the paint in the funnel-shaped nozzle 23, and achieves the initial atomization of the paint by cooperating with the atomizing holes 231 of the circumferential array on the edge of its conical inner sidewall. The spray width adjustment knob 14 can adjust the atomization range. The externally fitted adjustment gun cap 3 is fixed by the nut 4 to further refine the atomization pattern.

[0025] Electrical connection methods or structures not described in detail in this article are existing technologies.

[0026] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. A novel spray gun nozzle, comprising a spray gun body (1), characterized in that: A nozzle (2) is screwed into the nozzle at the right end of the spray gun body (1). The nozzle (2) includes a central pipe (21). A conical spray nozzle (22) is fixedly connected to the right end of the central pipe (21). A funnel-shaped nozzle (23) is fixedly connected to the right end of the conical spray nozzle (22). A fixing ring (24) is fixedly fitted in the middle of the outer periphery of the central pipe (21). Several air holes (241) are opened through the circumferential array on the left and right sidewalls of the fixing ring (24). The left edge of the outer sidewall of the fixing ring (24) extends to the left to form a bushing (242). A sealing disc (25) is fixedly connected to the right edge of the outer sidewall of the fixing ring (24).

2. The novel spray gun nozzle according to claim 1, characterized in that: The outer edge of the left end of the central conduit (21) is chamfered.

3. The novel spray gun nozzle according to claim 1, characterized in that: The outer hexagon (211) is provided on the outer side wall of the right end of the central conduit (21).

4. The novel spray gun nozzle according to claim 1, characterized in that: The funnel-shaped nozzle (23) has several atomizing holes (231) arranged in a circular array along the edge of its conical inner wall, which are connected to the outside.

5. A novel spray gun nozzle according to claim 1, characterized in that: A sealing ring (243) is fixedly provided on the left and right sides at the connection between the bushing (242) and the fixing ring (24), and the surface of the sealing ring (243) is threaded (244).

6. The novel spray gun nozzle according to claim 1, characterized in that: A limiting protrusion ring (251) is fixedly provided at the part where the right side of the sealing disc (25) connects with the right end of the fixing ring (24).

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