High pressure wash nozzle assembly and wash system

Abstract

The application relates to the technical field of cleaning, in particular to a high-pressure cleaning nozzle assembly and a cleaning system. The high-pressure cleaning nozzle assembly comprises a mounting seat used for connecting a high-pressure liquid pipeline and a compressed gas pipeline; a first nozzle and a second nozzle replaceably connected to the mounting seat; when the first nozzle is connected to the mounting seat, the first nozzle blocks the compressed gas pipeline and is in communication with the high-pressure liquid pipeline to spray liquid cleaning objects; when the second nozzle is connected to the mounting seat, the second nozzle blocks the high-pressure liquid pipeline and is in communication with the compressed gas pipeline to spray gas drying objects. According to the application, the outlet of the high-pressure liquid pipeline and the outlet of the compressed gas pipeline are integrated into the mounting seat, and the complex connection structure is integrated through the mounting seat, so that the structure of the first nozzle and the second nozzle can be simplified, and the first nozzle and the second nozzle are respectively provided with only one internal channel, so that the volume of the first nozzle and the second nozzle can be relatively small, so that the first nozzle and the second nozzle can be inserted into the interior of a workpiece to directly flush or blow, and the cleaning efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of cleaning technology, and more specifically, to a high-pressure cleaning nozzle assembly and cleaning system. Background Technology

[0002] Processed workpieces (such as automotive parts) require high-pressure cleaning, air drying, and packaging. Currently, nozzles are connected to separate liquid and compressed air supply lines. The liquid supply line provides high-pressure liquid, and the compressed air supply line provides compressed gas. The nozzles spray the high-pressure liquid and compressed gas respectively to achieve rinsing and drying. However, existing nozzle structures are complex, require large volumes of compressed air, and have a large overall fixed volume. When the workpiece surface or interior is complex, such as parts with deep holes or grooves, it cannot penetrate deep into the part for point-to-point air drying. This results in water residue after cleaning, leading to incomplete drying and low drying efficiency. Summary of the Invention

[0003] This application aims to provide a high-pressure cleaning nozzle assembly and cleaning system to solve the problem of low cleaning and drying efficiency in the prior art.

[0004] The embodiments of this application are implemented as follows:

[0005] In a first aspect, embodiments of this application provide a high-pressure cleaning nozzle assembly, comprising:

[0006] Mounting bracket for connecting liquid supply lines and gas supply lines;

[0007] The first nozzle and the second nozzle are alternatively connected to the mounting base;

[0008] When the first nozzle is connected to the mounting base, it blocks the compressed air line and is connected to the high-pressure liquid line to spray high-pressure liquid to clean the object.

[0009] When the second nozzle is connected to the mounting base, it blocks the high-pressure liquid line and is connected to the compressed gas line to spray compressed gas to dry the object.

[0010] In some embodiments of this application, the mounting base includes:

[0011] The first shaft tube has one end used to connect to the high-pressure liquid pipeline;

[0012] The second shaft tube is coaxially connected to the other end of the first shaft tube and has a gas flow channel for connecting the compressed gas pipeline. The gas flow channel extends from the outer peripheral surface of the second shaft tube to the inner peripheral surface of the second shaft tube.

[0013] A connecting sleeve is inserted into the first shaft tube and the second shaft tube. One end of the connecting sleeve is opposite to the high-pressure liquid pipeline. The connecting sleeve is provided with a first through hole, which extends from the outer circumferential surface of the connecting sleeve to the inner circumferential surface of the connecting sleeve to connect the gas flow channel.

[0014] The first nozzle and the second nozzle can be alternately inserted into the connecting sleeve.

[0015] In some embodiments of this application, a connecting sleeve is rotatably connected to a first shaft tube, and the connecting sleeve is rotatably and sealingly connected to a second shaft tube.

[0016] In some embodiments of this application, the gas flow channel includes a connecting hole and an annular groove, the annular groove being formed on the inner circumferential surface of the second shaft tube, the connecting hole extending from the outer circumferential surface of the second shaft tube to the annular groove, and the first through hole corresponding to the annular groove.

[0017] In some embodiments of this application, the diameter of the connecting hole is larger than the width of the annular groove.

[0018] In some embodiments of this application, the first nozzle includes a first nozzle body, a first connecting pipe, and a pipe connector connected in sequence. The first connecting pipe is used to be inserted into the connecting sleeve, and the pipe connector is used to be inserted into the high-pressure liquid pipeline, so that the first connecting pipe, the first nozzle body, and the high-pressure liquid pipeline are in communication. The outer peripheral surface of the first connecting pipe is fitted with the inner peripheral surface of the connecting sleeve to close the first through hole.

[0019] The second nozzle includes a second nozzle body, a second connecting pipe, and a plug connected in sequence. The second connecting pipe is used to be inserted into the connecting sleeve, and the plug is used to be inserted into the high-pressure liquid pipeline to seal the high-pressure liquid pipeline. The second connecting pipe is provided with a second through hole, which extends from the outer circumferential surface of the second connecting pipe to the inner circumferential surface of the second connecting pipe to connect with the first through hole.

[0020] In some embodiments of this application, a positioning block is provided at the end of the connecting sleeve opposite to the high-pressure hydraulic pipeline;

[0021] At least the outer peripheral surface of the second connecting pipe has a protrusion, and the protrusion has a positioning groove that cooperates with the positioning block.

[0022] In some embodiments of this application, the inner circumferential surface of the connecting sleeve includes a first inner circumferential surface and a second inner circumferential surface arranged along the axial direction of the connecting sleeve. The first inner circumferential surface is closer to the high-pressure hydraulic pipeline than the second inner circumferential surface. The second inner circumferential surface is in contact with the outer circumferential surface of the first connecting pipe and the outer circumferential surface of the second connecting pipe. The first inner circumferential surface is spaced apart from the outer circumferential surface of the first connecting pipe and the outer circumferential surface of the second connecting pipe to form a clearance space.

[0023] In some embodiments of this application, a stepped surface is formed between the first inner circumferential surface and the second inner circumferential surface, the stepped surface connecting the first inner circumferential surface and the second inner circumferential surface;

[0024] The connecting sleeve is also provided with a third through hole, which extends from the stepped surface to the end face of the second inner circumferential surface away from the first inner circumferential surface.

[0025] In some embodiments of this application, the second inner circumferential surface, the outer circumferential surface of the first connecting pipe, and the outer circumferential surface of the second connecting pipe are all tapered surfaces.

[0026] Secondly, this application provides a cleaning system comprising:

[0027] High-pressure hydraulic lines;

[0028] Compressed air pipeline;

[0029] As described in any one of the first aspects, the mounting base of the high-pressure cleaning nozzle assembly is connected to the high-pressure liquid line and the compressed air line, respectively.

[0030] In this application's technical solution, the high-pressure cleaning nozzle assembly includes a mounting base and a first nozzle and a second nozzle replaceably mounted on the mounting base. High-pressure liquid lines and compressed air lines are connected to the mounting base, integrating the outlets of the high-pressure liquid lines and compressed air lines into the mounting base. When the first nozzle is mounted on the mounting base, the compressed air line is blocked by its outer surface, and the inlet of the first nozzle is connected to the high-pressure liquid line. When the second nozzle is mounted on the mounting base, the high-pressure liquid line is blocked by its outer surface, and the inlet of the second nozzle is connected to the compressed air line. Thus, the first nozzle can have only a channel for high-pressure liquid flow, and the second nozzle can have only a channel for compressed gas flow. The first and second nozzles have simple structures and can be relatively small in size, allowing them to penetrate the workpiece and directly rinse and blow away its complex surface. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A perspective view of a high-pressure cleaning nozzle assembly (first nozzle) provided in an embodiment of this application;

[0033] Figure 2 A perspective view of a high-pressure cleaning nozzle assembly (second nozzle) provided in an embodiment of this application;

[0034] Figure 3 A top view of a high-pressure cleaning nozzle assembly (first nozzle) provided in an embodiment of this application;

[0035] Figure 4 for Figure 3 Section III-III;

[0036] Figure 5 A top view of a high-pressure cleaning nozzle assembly (second nozzle) provided in an embodiment of this application;

[0037] Figure 6 for Figure 5 VV cross-section diagram;

[0038] Figure 7 An exploded view of a mounting base provided in one embodiment of this application;

[0039] Figure 8 A perspective view of a connecting sleeve provided in an embodiment of this application;

[0040] Figure 9 A cross-sectional view of a first shaft tube provided in an embodiment of this application;

[0041] Figure 10 This is a top view of a connecting sleeve provided in an embodiment of this application;

[0042] Figure 11 for Figure 10 XX cross-sectional view;

[0043] Figure 12 A perspective view of a first nozzle provided in an embodiment of this application;

[0044] Figure 13 A perspective view of a second nozzle provided in an embodiment of this application.

[0045] Icons: 1-Mounting base, 11-First shaft tube, 12-Second shaft tube, 121-Connecting hole, 122-Annular groove, 123-Second sealing groove, 13-Connecting sleeve, 131-First through hole, 132-Boss, 133-First sealing groove, 134-Positioning block, 135-First inner circumferential surface, 136-Second inner circumferential surface, 137-Step surface, 138-Third through hole, 139-Clearing space, 14-Bearing, 15-Flange, 16-Support ring, 2-First nozzle, 21-First nozzle body, 22-First connecting pipe, 23-Pipe connector, 3-Second nozzle, 31-Second nozzle body, 32-Second connecting pipe, 321-Second through hole, 322-Protrusion, 323-Positioning groove, 33-Plug, 1000-Compressed air pipeline, 2000-Clamping claw. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The apparatus of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0047] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0048] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0049] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0050] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0051] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0052] Example

[0053] This application provides a high-pressure cleaning nozzle assembly and cleaning system for cleaning workpieces. It allows for precise point-to-point cleaning of deep holes or structures inside the workpiece, ensuring thorough cleaning and rapid drying of the workpiece, thereby improving the cleaning efficiency of the workpiece.

[0054] The cleaning system includes high-pressure liquid lines, compressed air lines, and high-pressure cleaning nozzle assemblies.

[0055] Combination Figure 1 and Figure 2 As shown, the high-pressure cleaning nozzle assembly includes a mounting base 1, a first nozzle 2, and a second nozzle 3, which are interchangeably mounted on the mounting base 1. Figure 1 A perspective view of the first nozzle 2 mounted on the mounting base 1 is shown. Figure 2 A perspective view of the second nozzle 3 mounted on the mounting base 1 is shown.

[0056] The high-pressure liquid line (not shown in the figure) and the compressed air line 1000 are respectively connected to the mounting base 1, so that both cleaning liquid and gas can be output through the mounting base 1.

[0057] The first nozzle 2 has only a channel for high-pressure liquid to flow inside. When the first nozzle 2 is installed on the mounting base 1, the inlet of the first nozzle 2 is connected to the high-pressure liquid pipeline, while the outer surface of the first nozzle 2 is blocked by the compressed air pipeline 1000, thereby realizing the spraying of cleaning liquid to rinse the workpiece.

[0058] The second nozzle 3 has only a channel for compressed gas to flow inside. When the second nozzle 3 is installed on the mounting base 1, the inlet of the second nozzle 3 is connected to the compressed gas pipeline 1000, while the outer surface of the second nozzle 3 blocks the high-pressure liquid pipeline, thereby realizing the spraying of gas to blow dry the workpiece.

[0059] This embodiment of the application divides the high-pressure cleaning nozzle assembly into a mounting base 1 and replaceable first nozzle 2 and second nozzle 3. The outlet of the high-pressure liquid pipeline and the outlet of the compressed air pipeline 1000 are integrated into the mounting base 1. On the one hand, the complex connection structure is integrated through the mounting base 1. On the other hand, the structure of the first nozzle 2 and the second nozzle 3 is simplified. The first nozzle 2 has only one channel corresponding to the high-pressure liquid pipeline, and the second nozzle 3 has only one channel corresponding to the compressed air pipeline 1000. Thus, the volume of the first nozzle 2 and the second nozzle 3 can be set to be smaller, so that the first nozzle 2 can be inserted into the workpiece for direct rinsing, and the second nozzle 3 can be inserted into the workpiece for direct blowing and drying. This reduces the rinsing blind spots and blowing blind spots of the workpiece, ensures that the workpiece is thoroughly cleaned and quickly dried, and improves the cleaning efficiency of the workpiece.

[0060] Figure 3 A top view of the first nozzle 2 mounted on the mounting base 1 is shown. Figure 4 It shows Figure 3 Cross-sectional view, Figure 5 A top view of the second nozzle 3 mounted on the mounting base 1 is shown. Figure 6 It shows Figure 5 A cross-sectional view. Combined with... Figure 3 , Figure 4 , Figure 5 and Figure 6 As can be seen, the mounting base 1 includes a first shaft tube 11, a second shaft tube 12, and a connecting sleeve 13. The first shaft tube 11 and the second shaft tube 12 are coaxially arranged and sleeved on the outside of the connecting sleeve 13. In other words, the connecting sleeve 13 passes through the first shaft tube 11 and the second shaft tube 12 in sequence.

[0061] One end of the first shaft tube 11 is connected to a high-pressure liquid pipeline so that the internal channel of the high-pressure liquid pipeline is opposite to the inner tube of the connecting sleeve 13.

[0062] The second shaft tube 12 is provided with a gas flow channel, which extends from the outer circumferential surface of the second shaft tube 12 to its inner circumferential surface. The connecting sleeve 13 is provided with a first through hole 131, which extends from the outer circumferential surface of the connecting sleeve 13 to its inner circumferential surface. The outer circumferential surface of the connecting sleeve 13 is in contact with the inner circumferential surface of the second shaft tube 12, and the first through hole 131 communicates with the gas flow channel. Thus, the gas in the compressed air pipeline 1000 can enter the inner cylinder of the connecting sleeve 13 through the gas flow channel and the first through hole 131.

[0063] Therefore, the high-pressure liquid pipeline is connected through the first shaft tube 11, and the compressed air pipeline 1000 is connected through the second shaft tube 12. The first shaft tube 11 and the second shaft tube 12 are then integrated through the connecting sleeve 13 to form the mounting base 1. The liquid in the high-pressure liquid pipeline and the gas in the compressed air pipeline 1000 both lead to the connecting sleeve 13. The first nozzle 2 and the second nozzle 3 can be inserted into the connecting sleeve 13 in an interchangeable manner, and both can switch between liquid spraying and air spraying.

[0064] In some embodiments, the connecting sleeve 13 is rotatably connected to the first shaft tube 11, and the connecting sleeve 13 is rotatably sealed to the second shaft tube 12. Thus, the connecting sleeve 13 can rotate relative to the first shaft tube 11 and the second shaft tube 12, causing the first nozzle 2 and the second nozzle 3 inserted into the connecting sleeve 13 to change their spray direction, so as to adapt to the surface changes of the workpiece and change the flushing and blowing direction, thereby further improving the flushing efficiency.

[0065] Figure 7 An exploded view of mounting base 1 is shown, combined with Figure 4 , Figure 6 and Figure 7 As shown, the mounting base 1 also includes a bearing 14, a flange 15, and a support ring 16.

[0066] The bearing 14 is disposed between the first shaft tube 11 and the connecting sleeve 13. The inner circumferential surface of the first shaft tube 11 is connected to the outer ring of the bearing 14, and the inner ring of the bearing 14 is connected to the outer circumferential surface of the connecting sleeve 13, so that the first shaft tube 11 and the connecting sleeve 13 are rotatably connected through the bearing 14.

[0067] A flange 15 is fitted over the connecting sleeve 13 and connects the first shaft tube 11 and the second shaft tube 12. The flange 15 has a protrusion on the side facing the first shaft tube 11, which supports the outer ring of the bearing 14. A support ring 16 is disposed between the flange 15 and the connecting sleeve 13 to support the inner ring of the bearing 14. A boss 132 is formed on the outer circumferential surface of the connecting sleeve 13, which presses the support ring 16 against the inner ring of the bearing 14.

[0068] In addition to abutting against the support ring 16, the boss 132 can also increase the wall thickness of the connecting sleeve 13 and improve the structural strength of the connecting sleeve 13. Figure 8 A perspective view of the connecting sleeve 13 is shown, as follows. Figure 8 As shown, in some embodiments, the first through hole 131 is provided at the position where the connecting sleeve 13 has the boss 132, so as to reduce the adverse effect of the first through hole 131 on the structural strength of the connecting sleeve 13.

[0069] An annular sealing cavity is formed between the flange 15 and the support ring 16. A first sealing groove 133 is provided on the outer circumferential surface of the connecting sleeve. The position of the first sealing groove 133 corresponds to that of the support ring 16. Elastic sealing rings are respectively provided in the annular sealing cavity and the first sealing groove 133 to seal the gap between the flange 15, the support ring 16 and the connecting sleeve 13. This serves to prevent dust and make the connection more stable.

[0070] Figure 9 A cross-sectional view of the second shaft tube 12 is shown, in conjunction with... Figure 4 , Figure 6 , Figure 7 and Figure 9 As shown, the gas flow channel in the second shaft tube 12 includes a connecting hole 121 and an annular groove 122. The annular groove 122 is formed on the inner circumferential surface of the second shaft tube 12. The connecting hole 121 extends from the outer circumferential surface of the second shaft tube 12 to the annular groove 122. The first through hole 131 corresponds to the annular groove 122.

[0071] By configuring the gas flow channel as a structure connecting the connecting hole 121 and the annular groove 122, it is convenient to connect to the compressed air pipeline 1000 through the connecting hole 121. On the other hand, the second shaft tube 12 is sleeved on the outside of the connecting sleeve 13, the outer circumferential surface of the connecting sleeve 13 is closed by the annular groove 122, and the first through hole 131 on the connecting sleeve 13 is connected to the annular groove 122, so that the rotation of the connecting sleeve 13 relative to the second shaft tube 12 does not affect the connection between the first through hole 131 and the gas flow channel, so that the workpiece can be blown continuously at multiple angles by the second nozzle 3.

[0072] In some embodiments, such as Figure 9 As shown, the diameter of the connecting hole 121 is larger than the width of the annular groove 122, so that the inlet of the annular groove 122 is smaller than the diameter of the connecting hole 121, so that the gas flow rate provided by the connecting hole 121 is greater than the required gas flow rate of the annular groove 122, ensuring that the gas pressure and flow rate in the annular groove 122 are constant, so that a stable airflow can be output to blow the workpiece.

[0073] The inner circumferential surface of the second shaft tube 12 is also provided with multiple second sealing grooves 123, and each second sealing groove 123 is provided with an elastic sealing ring to seal on both sides of the annular groove 122. Figure 6 and Figure 9 As shown, the inner circumferential surface of the second shaft tube 12 is also provided with two second sealing grooves 123. One second sealing groove 123 is located on the upper side of the annular groove 122, and the other second sealing groove 123 is located on the lower side of the annular groove 122. When the first shaft tube 11 is sleeved on the connecting sleeve 13, the outer circumferential surface of the connecting sleeve 13 presses the elastic sealing ring in the second sealing groove 123.

[0074] Figure 10A top view of the connecting sleeve 13 is shown. Figure 11 for Figure 10 The cross-sectional view shows the inner cylinder structure of the connecting sleeve 13. The inner circumferential surface of the connecting sleeve 13 includes a first inner circumferential surface 135 and a second inner circumferential surface 136. The first inner circumferential surface 135 and the second inner circumferential surface 136 are arranged along the axial direction of the connecting sleeve 13. The first inner circumferential surface 135 is closer to the high-pressure hydraulic pipeline than the second inner circumferential surface 136. The first inner circumferential surface 135 is spaced apart from the outer circumferential surface of the first nozzle 2 and the outer circumferential surface of the second nozzle 3 to form a clearance space 139. The second inner circumferential surface 136 is respectively attached to the outer circumferential surface of the first nozzle 2 and the outer circumferential surface of the second nozzle 3. The first through hole 131 is provided in the second inner circumferential surface 136. By providing the clearance space 139, the first inner circumferential surface 135 is prevented from interfering with the first nozzle 2 and the second nozzle 3, ensuring that the first nozzle 2 and the second nozzle 3 can be smoothly inserted into the high-pressure hydraulic pipeline. In addition, the connecting parts of the high-pressure hydraulic pipeline can also enter the clearance space 139 to strengthen the connection strength between the high-pressure hydraulic pipeline and the first nozzle 2 and the second nozzle 3. For example, such as Figure 1 As shown, the high-pressure liquid pipeline is connected to a clamp 2000, which extends into the clearance space 139. When the first nozzle 2 or the second nozzle 3 is inserted into the connecting sleeve 13 and the high-pressure liquid pipeline, the clamp 2000 clamps the outer peripheral surface of the first nozzle 2 or the outer peripheral surface of the second nozzle 3 to ensure a stable connection between the first nozzle 2 or the second nozzle 3 and the high-pressure liquid pipeline.

[0075] In some embodiments, such as Figure 10 and Figure 11 As shown, a stepped surface 137 is formed between the first inner circumferential surface 135 and the second inner circumferential surface 136. The stepped surface 137 connects the first inner circumferential surface 135 and the second inner circumferential surface 136. The connecting sleeve 13 is also provided with a third through hole 138, which extends from the stepped surface 137 to the end face of the second inner circumferential surface 136 away from the first inner circumferential surface 135.

[0076] When the first nozzle 2 or the second nozzle 3 is not properly connected to the high-pressure liquid pipeline, the clearance space 139 can allow liquid to seep out and discharge the seeped liquid through the third through hole 138, thereby preventing the first nozzle 2 or the second nozzle 3 from falling off under the impact of high-pressure liquid and avoiding safety accidents.

[0077] In some embodiments, there are multiple third through holes 138, which are arranged circumferentially around the connecting sleeve 13 on the stepped surface 137 to uniformly remove the circumferential water pressure of the first nozzle 2 or the second nozzle 3.

[0078] In some embodiments, the second inner circumferential surface 136 is configured as a tapered surface to facilitate the alignment and installation of the first nozzle 2 and the second nozzle 3, ensuring that the first nozzle 2 and the second nozzle 3 are inserted into the high-pressure liquid pipeline.

[0079] Figure 12 This is a three-dimensional schematic diagram of the first nozzle 2, as shown below. Figure 12 As shown, the first nozzle 2 includes a first nozzle body 21, a first connecting pipe 22, and a pipe connector 23 connected in sequence.

[0080] The first connecting tube 22 is used to be inserted into the connecting sleeve 13. The outer peripheral surface of the first connecting tube 22 is attached to the second inner peripheral surface 136 and closes the first through hole 131.

[0081] The pipe connector 23 is connected to the upper end of the first connecting pipe 22 for insertion and mating with the high-pressure liquid pipeline, so that the first connecting pipe 22, the first nozzle body 21 and the high-pressure liquid pipeline are connected.

[0082] The first nozzle body 21 is connected to the lower end of the first connecting pipe 22, in combination with Figure 4 and Figure 12 As shown, the first nozzle body 21 is constructed such that the cross-sectional area gradually decreases from one end to the other. The larger end of the first nozzle body 21 is connected to the first connecting pipe 22 and is provided with a liquid inlet. The smaller end of the first nozzle body 21 is provided with a liquid outlet, which facilitates the smaller end of the first nozzle body 21 to extend into the workpiece for rinsing.

[0083] Figure 13 This is a three-dimensional schematic diagram of the second nozzle 3, as shown below. Figure 13 As shown, the second nozzle 3 includes a second nozzle body 31, a second connecting pipe 32, and a plug 33 connected in sequence.

[0084] The second connecting tube 32 is used to be inserted into the connecting sleeve 13. The outer peripheral surface of the second connecting tube 32 is in contact with the second inner peripheral surface 136, and the second connecting tube 32 is provided with a second through hole 321. The second through hole 321 extends from the outer peripheral surface of the second connecting tube 32 to the inner peripheral surface of the second connecting tube 32 to connect with the first through hole 131, so that gas can enter the second connecting tube 32 through the second through hole 321.

[0085] The plug 33 is connected to the upper end of the second connecting pipe 32 for insertion and mating with the high-pressure liquid pipeline to seal the high-pressure liquid pipeline. At the same time, the plug 33 also seals the upper end of the second connecting pipe 32.

[0086] The second nozzle body 31 is connected to the lower end of the second connecting pipe 32, in combination with Figure 4 and Figure 12 As shown, the second nozzle body 31 is constructed such that the cross-sectional area gradually decreases from one end to the other. The larger end of the second nozzle body 31 is connected to the second connecting pipe 32 and is provided with a gas inlet. The smaller end of the second nozzle body 31 is provided with a gas outlet, which facilitates the smaller end of the second nozzle body 31 to extend into the workpiece to blow and dry it.

[0087] In some embodiments, such as Figure 13 As shown, a protrusion 322 is formed on the outer peripheral surface of the second connecting pipe 32, and a positioning groove 323 is provided on the protrusion 322. The opening of the positioning groove 323 faces the second connecting pipe 32 and is used to connect one end of the plug 33; combined with Figure 7 As shown, a positioning block 134 is provided at the end of the connecting sleeve 13 away from the high-pressure liquid pipeline. When the second nozzle 3 is inserted into the connecting sleeve 13, the positioning block 134 enters the positioning groove 323. The positioning groove 323 cooperates with the positioning block 134 to position the connecting sleeve 13 and the second connecting pipe 32, so that the first through hole 131 and the second through hole 321 are aligned to ensure stable airflow output.

[0088] In some embodiments, there are multiple first through holes 131 and multiple second through holes 321, with each of the multiple first through holes 131 and the multiple second through holes 321 corresponding one-to-one.

[0089] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high-pressure cleaning nozzle assembly, characterized in that, include: Mounting bracket for connecting high-pressure hydraulic lines and compressed air lines; The first nozzle and the second nozzle are alternatively connected to the mounting base; When the first nozzle is connected to the mounting base, it blocks the compressed air line and is connected to the high-pressure liquid line to spray high-pressure liquid to clean the object. When the second nozzle is connected to the mounting base, it blocks the high-pressure liquid line and is connected to the compressed gas line to spray compressed gas to dry the object. The mounting base includes: The first shaft tube has one end used to connect to the high-pressure liquid pipeline; The second shaft tube is coaxially connected to the other end of the first shaft tube and has a gas flow channel for connecting the compressed gas pipeline. The gas flow channel extends from the outer peripheral surface of the second shaft tube to the inner peripheral surface of the second shaft tube. A connecting sleeve is inserted into the first shaft tube and the second shaft tube. One end of the connecting sleeve is opposite to the high-pressure liquid pipeline. The connecting sleeve is provided with a first through hole, which extends from the outer circumferential surface of the connecting sleeve to the inner circumferential surface of the connecting sleeve to connect the gas flow channel. The first nozzle and the second nozzle can be alternately inserted into the connecting sleeve.

2. The high-pressure cleaning nozzle assembly according to claim 1, characterized in that, The connecting sleeve is rotatably connected to the first shaft tube, and the connecting sleeve is rotatably and sealingly connected to the second shaft tube.

3. The high-pressure cleaning nozzle assembly according to claim 1 or 2, characterized in that, The gas flow channel includes a connecting hole and an annular groove. The annular groove is formed on the inner circumferential surface of the second shaft tube. The connecting hole extends from the outer circumferential surface of the second shaft tube to the annular groove. The first through hole corresponds to the annular groove.

4. The high-pressure cleaning nozzle assembly according to claim 3, characterized in that, The diameter of the connecting hole is larger than the width of the annular groove.

5. The high-pressure cleaning nozzle assembly according to claim 1, characterized in that, The first nozzle includes a first nozzle body, a first connecting pipe, and a pipe connector connected in sequence. The first connecting pipe is used to be inserted into the connecting sleeve, and the pipe connector is used to be inserted into the high-pressure liquid pipeline, so that the first connecting pipe, the first nozzle body, and the high-pressure liquid pipeline are connected. The outer peripheral surface of the first connecting pipe is fitted with the inner peripheral surface of the connecting sleeve to close the first through hole. The second nozzle includes a second nozzle body, a second connecting pipe, and a plug connected in sequence. The second connecting pipe is used to be inserted into the connecting sleeve, and the plug is used to be inserted into the high-pressure liquid pipeline to seal the high-pressure liquid pipeline. The second connecting pipe is provided with a second through hole, which extends from the outer circumferential surface of the second connecting pipe to the inner circumferential surface of the second connecting pipe to connect with the first through hole.

6. The high-pressure cleaning nozzle assembly according to claim 5, characterized in that, The end of the connecting sleeve opposite to the high-pressure liquid pipeline is provided with a positioning block; At least the outer peripheral surface of the second connecting pipe has a protrusion, and the protrusion has a positioning groove that cooperates with the positioning block.

7. The high-pressure cleaning nozzle assembly according to claim 5, characterized in that, The inner circumferential surface of the connecting sleeve includes a first inner circumferential surface and a second inner circumferential surface arranged along the axial direction of the connecting sleeve. The first inner circumferential surface is closer to the high-pressure hydraulic pipeline than the second inner circumferential surface. The second inner circumferential surface is in contact with the outer circumferential surface of the first connecting pipe and the outer circumferential surface of the second connecting pipe. The first inner circumferential surface is spaced apart from the outer circumferential surface of the first connecting pipe and the outer circumferential surface of the second connecting pipe to form a clearance space.

8. The high-pressure cleaning nozzle assembly according to claim 7, characterized in that, A stepped surface is formed between the first inner circumferential surface and the second inner circumferential surface, and the stepped surface connects the first inner circumferential surface and the second inner circumferential surface; The connecting sleeve is also provided with a third through hole, which extends from the stepped surface to the end face of the second inner circumferential surface away from the first inner circumferential surface.

9. The high-pressure cleaning nozzle assembly according to claim 7 or 8, characterized in that, The second inner circumferential surface, the outer circumferential surface of the first connecting pipe, and the outer circumferential surface of the second connecting pipe are all tapered surfaces.

10. A cleaning system, characterized in that, include: High-pressure hydraulic lines; Compressed air pipeline; The high-pressure cleaning nozzle assembly as described in any one of claims 1 to 9, wherein the mounting base of the high-pressure cleaning nozzle assembly is connected to the high-pressure liquid line and the compressed air line, respectively.

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