Adjustable orifice nozzle assembly, spray gun and high pressure sprayer having the same
By designing an adjustable orifice nozzle assembly, the problems of cumbersome and costly replacement of traditional spray gun nozzles are solved. It enables flexible adjustment of nozzle orifice diameter and filtration function, adapts to multiple size specifications, extends nozzle life and reduces costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG RONGPENG AIR TOOLS CO LTD
- Filing Date
- 2026-05-29
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional spray gun nozzles are cumbersome and costly to replace, cannot meet different flow rates and atomization requirements, and lack convenient filtration and cleaning functions.
Design an adjustable orifice nozzle assembly, including a nozzle sleeve, a nozzle plate assembly, a nozzle support, a connecting nut, and an adjusting component. The material opening and closing gap of the nozzle plate assembly is adjusted by the adjusting component, and the nozzle orifice diameter is flexibly adjusted and filtered by combining a filter screen and a sealing pressure plate.
It enables flexible adjustment of nozzle diameter to meet the needs of multiple sizes and specifications, extends nozzle life, reduces costs, and has convenient filtration and cleaning functions.
Smart Images
Figure CN122273706A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of spraying machines and their accessories, specifically to an adjustable orifice nozzle assembly, a spray gun, and a high-pressure spraying machine having the spray gun. Background Technology
[0002] Spray painting machines are common spraying tools in our lives, and spray guns are an important part of spray painting machines. Different surfaces require different nozzle diameters, and different purposes also require different nozzle diameters. Spraying different thicknesses of paint can also be achieved by changing the nozzle diameter. The traditional approach is to use different models of nozzles with different diameters. Currently, there are nearly 50 different models of nozzles for high-pressure spray guns, depending on the flow rate and amplitude. Each size requires a separate nozzle plate assembly, which is costly. Furthermore, because a backwash function is required, the sealing requirements for the design are high. This makes replacement very cumbersome and inconvenient. Therefore, it is necessary to solve the existing defects. Summary of the Invention
[0003] The purpose of this invention is to solve the problems mentioned in the background art and to provide an adjustable orifice nozzle assembly, a spray gun, and a high-pressure spraying machine having the spray gun.
[0004] To achieve the above objectives, the technical solution of the present invention is as follows: an adjustable orifice nozzle assembly, characterized in that it includes a nozzle sleeve, a nozzle plate assembly, a nozzle support, a connecting nut, and an adjusting component; the nozzle sleeve is provided with a material hole extending to both ends; the nozzle support cooperates with the nozzle sleeve to position and install the nozzle plate assembly at the end of the material hole; the nozzle plate assembly has a material passage opening and closing gap; the adjusting component is connected to the nozzle sleeve and can adjust the size of the material passage opening and closing gap in the nozzle plate assembly; and the connecting nut connects the nozzle sleeve with a mating spray gun.
[0005] The adjustable orifice nozzle assembly described above also includes a filter screen and a sealing plate. The sealing plate positions and installs the filter screen in the feed hole. The filter screen filters the feed material at the inlet end of the feed hole and then flows it to the nozzle plate assembly at the outlet end of the feed hole.
[0006] In the above-mentioned adjustable orifice nozzle assembly, the nozzle plate assembly includes an upper adjusting plate and a lower adjusting plate. The lower adjusting plate is positioned in the material hole of the nozzle sleeve, and the upper adjusting plate is positioned in the nozzle bracket. The end of the adjusting member is in the material hole and can be adjusted by pushing the upper adjusting plate in the nozzle bracket through the end, thereby causing the upper adjusting plate to move up and down in the nozzle bracket to change the size of the material passage opening and closing gap.
[0007] In the aforementioned adjustable orifice nozzle assembly, the nozzle sleeve has a mounting groove in its material orifice and a mounting hole in its nozzle bracket. The lower adjusting plate is installed in the mounting groove, and the upper adjusting plate is installed in the mounting hole. The mounting hole has an elastic support foot that allows the upper adjusting plate to be elastically abutted and positioned therein. The end of the adjusting member extends into the mounting hole and applies pressure to the upper adjusting plate. The end of the adjusting member pushes and adjusts the position of the upper adjusting plate in the mounting hole, and at the same time applies the pressure to the nozzle bracket, thereby positioning and installing the nozzle bracket in the material orifice.
[0008] In the aforementioned adjustable orifice nozzle assembly, the mounting groove matches the outer contour of the lower adjusting plate, and the elastic support foot and the mounting hole always form an installation space that matches the outer contour of the upper adjusting plate. The upper adjusting plate is positioned and installed in the mounting hole by the elastic resistance of the elastic support foot.
[0009] In the aforementioned adjustable orifice nozzle assembly, the nozzle support is provided with an opening, and the end of the adjusting member passes through the opening to press and adjust the side of the upper adjusting plate. The shape of the nozzle support matches the material orifice in a polygonal shape.
[0010] In the aforementioned adjustable orifice nozzle assembly, the adjusting member is threadedly connected to the nozzle sleeve, and the adjusting member adjusts the upper adjusting plate by rotating and engaging with the elastic support foot.
[0011] In the above-mentioned adjustable aperture nozzle assembly, the feed hole is provided with an installation step surface, the installation groove is provided on the installation step surface, the side of the nozzle bracket is positioned against the installation step surface, and the sliding contact surfaces of the upper and lower adjustment plates are on the same horizontal plane as the installation step surface.
[0012] The present invention also provides a spray gun, including a gun body, wherein the above-mentioned nozzle plate assembly is mounted and connected to the gun body via a connector thereon, and the spray assembly is connected to the connector via a connecting nut thereon, and the connector of the gun body abuts against the sealing pressure plate thereon after the connection is completed.
[0013] The present invention also provides a spray gun and a high-pressure spraying machine equipped with the above-described spray gun.
[0014] By adopting the above-described technical solution, the present invention has the following beneficial effects: The nozzle diameter in this invention can be adjusted according to flow rate and atomization requirements, meeting the requirements of multiple sizes and specifications, which is very convenient for practical use. In addition, when the nozzle is worn, it can be adjusted to be larger or smaller, extending the nozzle's service life and greatly saving costs. Furthermore, it has a built-in filter screen for filtration, making cleaning convenient. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is an exploded view of the spray assembly in this invention; Figure 2 This is a cross-sectional view of the spray assembly in this invention; Figure 3 This is a three-dimensional cross-sectional view of the nozzle sleeve in the spray assembly of the present invention; Figure 4 This is a partial cross-sectional structural diagram of the spray gun in this invention. Detailed Implementation
[0017] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0018] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.
[0019] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.
[0020] Please see Figures 1 to 4This invention provides an adjustable orifice nozzle assembly, including a nozzle sleeve 1, a nozzle plate assembly 2, a nozzle support 3, a connecting nut 4, and an adjusting component 5. The nozzle sleeve 1 is provided with a material hole 6 extending to both ends. The nozzle support 3 cooperates with the nozzle sleeve 1 to position and install the nozzle plate assembly 2 at the end of the material hole 6. The nozzle plate assembly 2 has a material passage opening and closing gap 7. The adjusting component 5 is connected to the nozzle sleeve 1 and can adjust the size of the material passage opening and closing gap 7 in the nozzle plate assembly 2. The connecting nut 4 connects the nozzle sleeve 1 with a mating spray gun.
[0021] Furthermore, it also includes a filter screen 8 and a sealing plate 9. The sealing plate 9 positions and installs the filter screen 8 in the feed hole 6. The filter screen 8 filters the feed material at the inlet end of the feed hole 6 and then flows it to the nozzle plate assembly 2 at the outlet end of the feed hole 6. In this embodiment, a port groove 6-1 is provided at the inlet end of the feed hole 6, and one end of the filter screen 8 and the sealing plate are placed and installed through the port groove.
[0022] Furthermore, the nozzle plate assembly 2 includes an upper adjusting plate 10 and a lower adjusting plate 11. In this embodiment, the upper adjusting plate 10 and the lower adjusting plate 11 are two interconnected plate structures. The lower adjusting plate 11 is positioned and installed in the material hole 6 of the nozzle sleeve 1, and the upper adjusting plate 10 is positioned and installed in the nozzle support 3. The end of the adjusting member 5 is located in the material hole 6 and can be adjusted by pushing the upper adjusting plate 10 in the nozzle support 3 through the end, thereby causing the upper adjusting plate 10 to move up and down in the nozzle support 3 to change the size of the material passage opening and closing gap 7.
[0023] Furthermore, the nozzle sleeve 1 has a mounting groove 12 in the material hole 6 and a mounting hole 13 in the nozzle bracket 3. The lower adjusting plate 11 is installed in the mounting groove 12, and the upper adjusting plate 10 is installed in the mounting hole 13. The mounting hole 13 has an elastic support foot 14 that allows the upper adjusting plate 10 to be elastically abutted and positioned therein. In this embodiment, the elastic support foot 14 is preferably an integral structure with the nozzle bracket 3. The end of the adjusting member 5 extends into the mounting hole 13 to form a top pressure on the upper adjusting plate 10. The end of the adjusting member 5 pushes and adjusts the upper adjusting plate 10 to be in the position of the mounting hole 13, and at the same time applies the top pressure to the nozzle bracket 3, thereby positioning and installing the nozzle bracket 3 in the material hole 6.
[0024] Furthermore, the mounting groove 12 is matched with the outer contour shape of the lower adjusting plate 11, and the elastic support 14 and the mounting hole 13 always form an installation space that matches the outer contour shape of the upper adjusting plate 10. The upper adjusting plate 10 is positioned and installed in the mounting hole 13 by the elastic resistance of the elastic support 14.
[0025] Furthermore, the nozzle support 3 is provided with an opening 15, and the end of the adjusting member 5 passes through the opening 15 to press and adjust the side of the upper adjusting plate 10. The shape of the nozzle support 3 matches the polygonal shape of the material hole 6, which facilitates the placement of the nozzles 3.
[0026] Furthermore, the adjusting member 5 is threadedly connected to the nozzle sleeve 1, and a screw hole 1-1 for connection is provided on the nozzle sleeve 1. The adjusting member 5 adjusts the upper adjusting plate 10 by rotating and cooperating with the elastic support foot 14.
[0027] Furthermore, the material hole 6 is provided with an installation step surface 16, the installation groove 12 is provided on the installation step surface 16, the side of the nozzle bracket 3 forms a positioning abutment with the installation step surface 16, and the sliding contact surfaces of the upper adjustment plate 10 and the lower adjustment plate 11 are on the same horizontal plane as the installation step surface 16.
[0028] In the specific implementation and installation, the lower adjusting plate 11 is placed in the mounting groove 12, and the upper adjusting plate 10 is installed in the mounting hole 13 of the nozzle bracket 3. The upper adjusting plate 10 and the nozzle bracket 3 are connected by elastic support 14. The upper adjusting plate 10 and the nozzle bracket 3 are placed together in the material hole 6. The nozzle bracket 3 slides along the material hole 6 to the mounting step surface 16. The adjusting member 5 is rotatably connected to the nozzle sleeve 1. The end of the adjusting member 5 passes through the opening 15 and presses against the side of the upper adjusting plate 10. At the same time, the top pressure is applied to the nozzle bracket 3, thereby positioning the nozzle bracket 3 in the material hole 6. The position in the mounting hole 13 is adjusted by rotating the adjusting member 5 to adjust the top pressure of the upper adjusting plate 10. The entire nozzle assembly is connected to the spray gun body through the connecting nut 4.
[0029] The present invention also discloses a spray gun, including a gun body 17, wherein the above-mentioned nozzle assembly is installed and connected to the gun body 17 via a connector 19 thereon, and the spray assembly 20 is connected to the connector 19 via a connecting nut 4 therein, and the connector 19 on the gun body 17 abuts against the sealing pressure plate 9 therein after the connection is completed.
[0030] The present invention also discloses a high-pressure spraying machine equipped with the spray gun 21 described above.
[0031] The adjustable orifice nozzle assembly, spray gun, and high-pressure spraying machine with the spray gun provided in the embodiments of the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the technical solutions disclosed in the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.
Claims
1. An adjustable orifice nozzle assembly, characterized in that: The nozzle sleeve (1), nozzle plate assembly (2), nozzle bracket (3), connecting nut (4), and adjusting component (5) are provided. The nozzle sleeve (1) is provided with a material hole (6) extending to both ends. The nozzle bracket (3) cooperates with the nozzle sleeve (1) to position and install the nozzle plate assembly (2) at the end of the material hole (6). The nozzle plate assembly (2) has a material passage opening and closing gap (7). The adjusting component (5) is connected to the nozzle sleeve (1) and can adjust the size of the material passage opening and closing gap (7) in the nozzle plate assembly (2). The connecting nut (4) connects the nozzle sleeve (1) with the matching spray gun.
2. The adjustable orifice nozzle assembly according to claim 1, characterized in that: It also includes a filter screen (8) and a sealing plate (9). The sealing plate (9) positions and installs the filter screen (8) in the material hole (6). The filter screen (8) filters the feed at the inlet end of the material hole (6) and then flows to the nozzle plate assembly (2) at the outlet end of the material hole (6).
3. An adjustable orifice nozzle assembly according to claim 1 or 2, characterized in that: The nozzle plate assembly (2) includes an upper adjusting plate (10) and a lower adjusting plate (11). The lower adjusting plate (11) is positioned in the material hole (6) of the nozzle sleeve (1), and the upper adjusting plate (10) is positioned in the nozzle bracket (3). The end of the adjusting member (5) is in the material hole (6) and can push the upper adjusting plate (10) in the nozzle bracket (3) to adjust it, thereby making the upper adjusting plate (10) move up and down in the nozzle bracket (3) to change the size of the material opening and closing gap (7).
4. An adjustable orifice nozzle assembly according to claim 3, characterized in that: The nozzle sleeve (1) has a mounting groove (12) in the material hole (6) and a mounting hole (13) in the nozzle bracket (3). The lower adjusting plate (11) is installed in the mounting groove (12) and the upper adjusting plate (10) is installed in the mounting hole (13). The mounting hole (13) has an elastic support foot (14) that allows the upper adjusting plate (10) to be elastically abutted and positioned therein. The end of the adjusting member (5) extends into the mounting hole (13) to form a top pressure on the upper adjusting plate (10). The end of the adjusting member (5) pushes and adjusts the position of the upper adjusting plate (10) in the mounting hole (13), and at the same time applies the top pressure to the nozzle bracket (3), thereby positioning the nozzle bracket (3) in the material hole (6).
5. An adjustable orifice nozzle assembly according to claim 4, characterized in that: The mounting groove (12) matches the outer shape of the lower adjusting plate (11), and the elastic support (14) and the mounting hole (13) always form an installation space that matches the outer shape of the upper adjusting plate (10). The upper adjusting plate (10) is positioned and installed in the mounting hole (13) by the elastic resistance of the elastic support (14).
6. An adjustable orifice nozzle assembly according to claim 4, characterized in that: The nozzle support (3) is provided with an opening (15). The end of the adjusting member (5) passes through the opening (15) to press and adjust the side of the upper adjusting plate (10). The shape of the nozzle support (3) matches the material hole (6) in a polygonal shape.
7. An adjustable orifice nozzle assembly according to claim 3, characterized in that: The adjusting component (5) is threadedly connected to the nozzle sleeve (1). The adjusting component (5) adjusts the upper adjusting plate (10) by rotating and cooperating with the elastic support foot (14).
8. An adjustable orifice nozzle assembly according to claim 4, characterized in that: The feed hole (6) is provided with an installation step surface (16), the installation groove (12) is provided on the installation step surface (16), the side of the nozzle bracket (3) forms a positioning abutment with the installation step surface (16), and the sliding contact surfaces of the upper adjustment plate (10) and the lower adjustment plate (11) are on the same horizontal plane as the installation step surface (16).
9. A spray gun, comprising a gun body (17), characterized in that: The gun body (17) is connected to the nozzle assembly (20) according to any one of claims 1 to 8 via the connector (19) thereon. The nozzle assembly (20) is connected to the connector (19) via the connecting nut (4) therein. After the connection is completed, the connector (19) of the gun body (17) abuts against the sealing pressure plate (9) therein.
10. A high-pressure spraying machine, characterized in that: Equipped with the spray gun (21) as described in claim 9.