Spray head device
By extending the fixed tube on the nozzle of the nozzle device and increasing friction at the connection between the hood and the fixed tube, the problem of loosening the hood is solved. At the same time, the cyclone part and the exhaust passage are used to form a spiral air flow, disperse the spraying material, and achieve uniform spraying.
Patent Information
- Application Number
- CN202421848975.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-01
AI Technical Summary
The hood of the existing nozzle device is prone to loosening and falling off when a high air pressure air flow is formed, resulting in unstable spraying.
A nozzle device is designed, and a fixed tube is provided on the nozzle, and the wind cap is provided with a connecting part connected to and abuts the fixed tube, which increases the contact area between the wind cap and the nozzle, and prevents loosening by the friction force of the connection part by the fixed tube. At the same time, a cyclone part is provided on the outer periphery of the nozzle to form a spiral air flow, which is discharged through the exhaust passage, dispersed the spraying material, and achieve uniform spraying.
Effectively prevent the hood from loosening and falling off, ensure spraying stability, and disperse the spraying material through spiral airflow to improve the uniformity of spraying.
Smart Images
Figure CN222970061U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nozzles, and particularly refers to a nozzle device. Background Art
[0002] A nozzle is a commonly used tool in industry, which can spray paint onto the surface of an object. The commonly used spray gun nozzle for glass spraying at present includes a nozzle and a wind cap sleeved outside the nozzle. The wind cap is often in a converging shape and can be used to form an airflow with greater air pressure. When used under the impact of the airflow, the wind cap is prone to loosen and fall off from the nozzle. Content of the Utility Model
[0003] The main purpose of the utility model is to solve the deficiencies of the above background art and provide a nozzle device that is not easy to loosen.
[0004] The technical solution adopted by the utility model is: a nozzle device, which includes,
[0005] A nozzle, the nozzle is provided with a paint spraying channel, and a fixed pipe communicating with the paint spraying channel is fixedly arranged at the end of the nozzle;
[0006] A wind cap, the wind cap is provided with a connecting part that sleeves and abuts against the outer wall of the fixed pipe; an exhaust channel is formed between the inner wall of the connecting part and the outer wall of the fixed pipe.
[0007] Further, the outer diameter of the fixed pipe is smaller than the outer diameter of the end of the nozzle.
[0008] Further, a cyclone part is fixedly arranged on the outer periphery of the nozzle; a plurality of cyclone grooves are formed between the cyclone part and the inner wall of the wind cap; the exhaust channel communicates with the cyclone grooves.
[0009] Further, the cyclone grooves are obliquely arranged on the circumferential surface of the cyclone part in a spiral shape.
[0010] Further, the exhaust channel is continuously arranged along the spiral direction of the cyclone grooves.
[0011] Further, the inclination angle between the cyclone grooves and the axial direction of the paint spraying channel is 0 to 30°.
[0012] Further, the cyclone part includes a conical structure that is large at one end far from the fixed pipe and small at one end close to the fixed pipe.
[0013] Further, the end surface of the fixed pipe far from the paint spraying channel is located inside the connecting part.
[0014] Further, the exhaust channels are circumferentially spaced on the inner wall of the connecting part.
[0015] Further, the exhaust channels are arranged corresponding to the cyclone grooves one by one.
[0016] Further, the cyclone troughs are evenly arranged on the outer circumference of the cyclone part.
[0017] Further, it further includes a spray pipe and an air pipe; the spray pipe is fixedly connected to one end of the nozzle far from the fixed pipe; the air pipe is sleeved outside the spray pipe to form an air delivery channel between the air pipe and the spray pipe; the wind cap is fixedly connected to the air pipe and the exhaust channel communicates with the air delivery channel.
[0018] The advantages of the present utility model include: 1. The conventional wind cap is in a closed-mouth shape and is prone to loosening and falling off under the impact of the airflow when forming a stronger airflow; in the present utility model, a fixed pipe is provided with an extension on the nozzle, and the wind cap is provided with a connecting part that sleeves and abuts against the fixed pipe, increasing the contact area between the wind cap and the nozzle. The fixed pipe abuts against the connecting part with friction, making the wind cap not easily loosen and fall off; the setting of the fixed pipe and the connecting part extends the discharge port of the nozzle, and it is not easy to block the discharge port and the exhaust channel when in use;
[0019] 2. The cyclone part of the present utility model is used to form a spiral airflow, which can be discharged through the connection with the exhaust channel, and can disperse the sprayed material to make the spraying more uniform;
[0020] 3. The structure of the cyclone part is very simple. By arranging the cyclone troughs in a spiral shape on the surface of the cyclone part, spiral airflow can be generated, which is convenient for production;
[0021] 4. The exhaust channel is continuously arranged along the spiral direction of the cyclone trough, so that the spiral airflow formed in the cyclone part can continue to be spirally discharged, achieving the purpose of dispersing and spraying the sprayed material;
[0022] 5. The cyclone part is in a conical structure, which can make the cyclone troughs in a closed-mouth shape along the direction of the exhaust channel, which is beneficial to improving the pressure of the formed spiral airflow, thereby more effectively dispersing the sprayed material and avoiding blockage;
[0023] 6. The end of the fixed pipe is located inside the connecting part, avoiding the fixed pipe protruding outside the connecting part. The spiral airflow is affected by the protruding part of the fixed pipe and changes the airflow direction, resulting in a reduction in the effect of the airflow on the sprayed material; at the same time, the spiral airflow of the protruding fixed pipe part is beneficial to the discharge of the sprayed material and avoids blocking the discharge port of the fixed pipe;
[0024] 7. The multiple exhaust channels of the present utility model are circumferentially spaced apart, which is convenient for evenly discharging gas, improving the effect of dispersing the sprayed material, and making the spraying more uniform;
[0025] 8. The exhaust channels of the present utility model are arranged in one-to-one correspondence with the cyclone troughs, which is beneficial to discharging the formed spiral airflow, and avoiding that too few exhaust channels cause too large airflow pressure, which has an adverse effect on the uniform spraying of the sprayed material;
[0026] 9. The cyclone troughs of the present utility model are evenly arranged on the outer circumference of the cyclone part, which can make the formed spiral air flow more uniform and stable, so that the air flow at the local orientation of the nozzle's ejection port is uniform, achieving a better effect of uniform and dispersed spraying of materials.
[0027] 10. The present utility model provides a spray pipe and an air pipe for supporting use. The nozzle and the wind cap can be respectively fixed on the spray pipe and the air pipe to form a material conveying channel and an air conveying channel respectively. The gas conveyed through the air conveying channel can be discharged in the exhaust channel to disperse the sprayed materials discharged through the material conveying channel, and the spraying operation can be realized in a state where the wind cap is not easily detached.
[0028] The structure of the present utility model is simple and convenient to operate and use. By extending the fixed pipe arranged on the nozzle and the wind cap sleeved and abutted against the fixed pipe, the contact area between the wind cap and the nozzle is increased. The abutting connection part of the fixed pipe has friction, so that the wind cap is not easily loosened and detached. The air flow for spraying can be discharged through the exhaust channel to realize the spraying operation. Description of the Drawings
[0029] Figure 1 : Schematic structural diagram of the connection between the air pipe and the spray pipe of the present utility model;
[0030] Figure 2 : Schematic structural diagram of the present utility model;
[0031] Figure 3 : Schematic cross-sectional structural diagram of the wind cap of the present utility model;
[0032] Figure 4 : Schematic top view structural diagram of the wind cap of the present utility model;
[0033] Figure 5 : Schematic structural diagram of the nozzle of the present utility model;
[0034] Figure 6 : Schematic structural diagram of the cyclone part of the present utility model;
[0035] Figure 7 : Schematic top view structural diagram of the nozzle of the present utility model;
[0036] Wherein: 1 - nozzle; 11 - material spraying channel; 12 - fixed pipe; 13 - cyclone part; 131 - cyclone trough; 2 - wind cap; 21 - connection part; 22 - exhaust channel; 3 - air conveying channel; 4 - material conveying channel; 5 - air pipe; 6 - spray pipe. Detailed Embodiment
[0037] The following details the embodiments of the present utility model, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model and should not be construed as limiting the present utility model.
[0038] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.
[0039] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.
[0040] The present utility model will be further described in detail below with reference to the drawings and specific embodiments.
[0041] The present utility model relates to a nozzle device, which solves the problem that the conventional wind cap 2 is prone to loosen and fall off during use. The spray gun nozzle commonly used for glass spraying at present includes a nozzle 1 and a wind cap 2 sleeved outside the nozzle 1. The wind cap 2 is mostly threadedly connected to the air pipe 5. The wind cap 2 is often in a converging shape and can be used to form an air flow with a greater air pressure. Under the impact of the air flow, the wind cap 2 is prone to loosen and detach from the nozzle 1 during use. The nozzle 1 of the present utility model is provided with a fixed pipe 12 extending therefrom. The wind cap 2 is provided with a connecting portion 21 that sleeves and abuts against the fixed pipe 12, increasing the contact area between the wind cap 2 and the nozzle 1. The abutment of the fixed pipe 12 against the connecting portion 21 has frictional force, making the wind cap 2 not easily loosen and fall off.
[0042] A nozzle device, as Figures 1 to 7 shown, includes a nozzle 1 and a wind cap 2. The nozzle 1 is provided with a material spraying channel 11, and a fixed pipe 12 communicating with the material spraying channel 11 is fixedly provided at the end of the nozzle 1; preferably, the outer diameter of the fixed pipe 12 is smaller than the outer diameter of the end of the nozzle 1; the wind cap 2 is sleeved outside the nozzle 1, and the wind cap 2 is provided with a connecting portion 21 that sleeves and abuts against the outer wall of the fixed pipe 12; an exhaust channel 22 is formed between the inner wall of the connecting portion 21 and the outer wall of the fixed pipe 12. The gas for spraying can be ejected from the exhaust channel 22. Preferably, the connection of the connecting portion 21 to the fixed pipe 12 generates a certain pressure, which can increase the static friction and prevent the wind cap 2 connected to the air pipe 5 by threads from loosening and falling off under the impact of the air flow in the air pipe 5.
[0043] In a certain preferred embodiment, as Figure 2 、Figures 5 to 7 As shown, a cyclone part 13 is fixedly arranged on the outer periphery of the nozzle 1 for forming a spiral air flow; a plurality of cyclone grooves 131 are formed between the cyclone part 13 and the inner wall of the air cap 2; the exhaust passage 22 is communicated with the cyclone grooves 131. The air flow forms a spiral air flow through the cyclone grooves 131, increasing the air flow pressure, and then is discharged through the exhaust passage 22, which can disperse the sprayed material ejected from the nozzle 1 and make the spraying more uniform.
[0044] On the basis that the cyclone part 13 is fixedly arranged on the outer periphery of the nozzle 1, in an embodiment, such as Figure 7 As shown, the cyclone grooves 131 are spirally arranged on the circumferential surface of the cyclone part 13 in an inclined manner along the axial direction of the spraying material passage 11. The cyclone grooves 131 can be arc-shaped or strip-shaped, and are formed in a spiral shape. When the air flow passes through the cyclone grooves 131, a spiral air flow can be formed. The structure is simple and is convenient for batch production in factories.
[0045] On the basis that the cyclone grooves 131 are spirally arranged on the circumferential surface of the cyclone part 13 in an inclined manner, in an embodiment, the exhaust passage 22 is optimized. The exhaust passage 22 is continuously arranged along the spiral direction of the cyclone grooves 131, that is, the exhaust passage 22 is also spiral. The spiral air flow formed in the spiral cyclone grooves 131 can continue to be spirally discharged along the spiral path, further improving the effect of dispersing and ejecting the sprayed material and making the spraying uniform.
[0046] On the basis that the cyclone grooves 131 are spirally arranged on the circumferential surface of the cyclone part 13 in an inclined manner, in another embodiment, the inclination angle of the cyclone grooves 131 is specifically described, such as Figure 6 As shown, the inclination angle between the cyclone grooves 131 and the axial direction of the spraying material passage 11 is 0-30°, and any degree between 0-30° can be used, such as 0, 3, 5, 8, 10, 12.5, 15, 18, 21, 25, 27, 30°. When the inclination angle is 0°, the axial direction of the cyclone grooves 131 is parallel to the axial direction of the spraying material passage 11; since the cyclone grooves 131 are spiral, this inclination angle is the tangent angle between the cyclone grooves 131 and the axial direction of the cyclone part 13. The larger the inclination angle, the shorter the spiral period of the cyclone grooves 131, that is, the shorter the spiral pitch, and the greater the wind resistance formed. The inclination angle of 0-30° is reasonably set to avoid the short spiral period pitch caused by too large an inclination angle, resulting in air flow blockage and unable to achieve the purpose of dispersing the sprayed material.
[0047] On the basis that the cyclone part 13 is fixedly arranged on the outer periphery of the nozzle 1, in an embodiment, such as Figure 2 、 Figures 5 to 6As shown, the cyclone part 13 has a conical structure, with the end away from the fixed pipe 12 being larger and the end close to the fixed pipe 12 being smaller; the fixed pipe 12 is provided at the end of the conical small head, and the inner wall of the wind cap 2 fits the conical cyclone part 13, enabling the cyclone groove 131 to be in a converging shape along the direction of the exhaust passage 22, which is beneficial to increasing the pressure of the formed spiral air flow, thus more effectively dispersing the sprayed material and avoiding the blockage of the exhaust passage 22 by the sprayed material.
[0048] On the basis that the cyclone part 13 is fixedly provided on the outer periphery of the nozzle 1, in a certain embodiment, such as Figures 1 to 2 As shown, the end face of the end of the fixed pipe 12 away from the spraying material passage 11 is located within the connecting part 21, one end of the fixed pipe 12 is the material outlet, and the end face of this end of the fixed pipe 12 does not protrude from the end face of the connecting part 21 within the connecting part 21, avoiding the spiral air flow being affected by the protruding part of the fixed pipe 12 and changing the air flow direction, resulting in a reduction in the effect of the air flow on the sprayed material; at the same time, the spiral air flow of the protruding part of the fixed pipe 12 is beneficial to the discharge of the sprayed material and avoids the blockage of the material outlet of the fixed pipe 12.
[0049] In some embodiments, the exhaust passage 22 is described, such as Figures 3 to 4 As shown, the exhaust passages 22 are circumferentially spaced on the inner wall of the connecting part 21. Preferably, a plurality of exhaust passages 22 are circumferentially spaced evenly, which can form a uniform air flow in the circumferential direction at the end of the nozzle 1, improve the effect of dispersing the sprayed material, and make the spraying more uniform.
[0050] On the basis that the cyclone part 13 is fixedly provided on the outer periphery of the nozzle 1, in a certain embodiment, the exhaust passages 22 are in one-to-one correspondence with the cyclone grooves 131, enabling the spiral air flow formed in each cyclone groove 131 to be discharged through the corresponding exhaust passage 22, which is beneficial to discharging the formed spiral air flow, avoiding the excessive air flow pressure caused by too few exhaust passages 22, and avoiding the excessive air pressure on one side of the nozzle 1 affecting the spraying direction of the sprayed material, resulting in adverse effects such as the deviation of the spraying direction or uneven spraying.
[0051] On the basis that the cyclone part 13 is fixedly provided on the outer periphery of the nozzle 1, in a certain embodiment, such as Figure 6 As shown, the cyclone grooves 131 are evenly spaced on the circumferential outer side of the cyclone part 13, which can make the formed spiral air flow more uniform and stable, so that the air flow in the circumferential direction of the spray outlet part of the nozzle 1 is uniform, achieving a better effect of evenly dispersing the sprayed material.
[0052] Such as Figure 1As shown, in an embodiment, the nozzle device further includes a spray pipe 6 and an air pipe 5. The spray pipe 6 is fixedly connected to one end of the nozzle 1 away from the fixed pipe 12. The inner cavity of the spray pipe 6 serves as a material conveying channel 4 that communicates with the material spraying channel 11. The air pipe 5 is sleeved outside the spray pipe 6, and an air conveying channel 3 is formed between the inner wall of the air pipe 5 and the outer wall of the spray pipe 6. An air inlet is provided on the air pipe 5, and the air inlet is used to connect a gas driving device to provide a flowing air current for realizing the material spraying operation. The wind cap 2 is fixedly connected to the air pipe 5, and the exhaust channel 22 communicates with the air conveying channel 3. Both the nozzle 1 and the wind cap 2 can be connected to the air pipe 5 in a threaded connection manner, which is convenient for disassembling the wind cap 2 to maintain the nozzle 1.
[0053] During actual use, the nozzle 1 is fixedly connected to the spray pipe 6, and then the wind cap 2 is threadedly connected to the air pipe 5. When the wind cap 2 is tightened, the inner wall of the connecting portion 21 abuts against the outer wall of the fixed pipe 12, and the spiral exhaust channel 22 correspondingly communicates with the spiral cyclone groove 131, that is, the spiral cyclone groove 131 and the corresponding exhaust channel 22 are spirally and continuously arranged. Moreover, the inner wall of the wind cap 2 abuts against the circumferential outer wall of the cyclone portion 13, but the end of the inner wall of the wind cap 2 close to the connecting portion 21 abuts against the outer wall of the cyclone portion 13. The air current enters the wind cap 2 from the air conveying channel 3 to form a spiral air current with a greater air pressure in the cyclone portion 13 and is discharged from the spiral exhaust channel 22, which can disperse the sprayed material discharged from the material spraying channel 11 to achieve the effect of uniform spraying.
[0054] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.
Claims
1. A nozzle device, characterized in that: include, A nozzle (1), wherein the nozzle (1) is provided with a material spraying channel (11), and a fixed pipe (12) connected to the material spraying channel (11) is fixedly provided at the end of the nozzle (1); The hood (2) is provided with a connecting portion (21) which is sleeved and abuts against the outer wall of the fixed tube (12); an exhaust passage (22) is formed between the inner wall of the connecting portion (21) and the outer wall of the fixed tube (12).
2. A nozzle device according to claim 1, characterized in that: A cyclone portion (13) is fixedly arranged on the outer periphery of the nozzle (1); the cyclone portion (13) and the inner wall of the hood (2) form a plurality of cyclone grooves (131); and the exhaust passage (22) is connected to the cyclone grooves (131).
3. A nozzle device as claimed in claim 2, characterized in that: The cyclone groove (131) is obliquely arranged on the circumferential surface of the cyclone portion (13) in a spiral shape.
4. A nozzle device as claimed in claim 3, characterized in that: The exhaust passage (22) is continuously arranged along the spiral direction of the cyclone groove (131).
5. A nozzle device as claimed in claim 2, characterized in that: The cyclone portion (13) comprises a conical structure having a larger end away from the fixed pipe (12) and a smaller end close to the fixed pipe (12).
6. A nozzle device as claimed in claim 2, characterized in that: An end surface of the fixed tube (12) away from the material injection channel (11) is located in the connecting portion (21).
7. A nozzle device according to any one of claims 1 to 6, characterized in that: The exhaust passages (22) are arranged at circumferential intervals on the inner wall of the connecting portion (21).
8. A nozzle device as claimed in claim 2, characterized in that: The exhaust channels (22) are arranged in one-to-one correspondence with the cyclone grooves (131).
9. A nozzle device as claimed in claim 2, characterized in that: The cyclone grooves (131) are evenly spaced and arranged outside the circumference of the cyclone portion (13).
10. A nozzle device according to claim 7, characterized in that: It also comprises a nozzle (6) and an air pipe (5); the nozzle (6) is fixedly connected to one end of the nozzle (1) away from the fixed pipe (12); the air pipe (5) is sleeved on the outside of the nozzle (6) and forms an air supply channel (3) between the nozzle (6); the wind cap (2) is fixedly connected to the air pipe (5) and the exhaust channel (22) is connected to the air supply channel (3).