Magnetic switching structure of spray gun nozzle

Abstract

The utility model relates to the technical field of spraying tools, and discloses a magnetic switching structure of a spray gun nozzle, which comprises a first connecting piece, the first connecting piece is rotatably connected with a rotating piece through a flow guide pipe, and a magnetic switching assembly is arranged between the rotating piece and the first connecting piece. The magnetic force switching assembly is used for providing repelling / attracting body feeling when the rotating piece is rotated through magnetic force. One end of the rotating piece is connected with a second connecting piece, the second connecting piece is used for being connected with a nozzle, and the two ends of the flow guide pipe are communicated with the first connecting piece and the second connecting piece respectively. And the spraying angle switching precision of the spraying gun is improved, the overall structure connection is more stable, and the normal spraying effect of the spraying gun is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying tools, in particular to a magnetic switching structure of a spray gun nozzle. Background Art

[0002] Existing spray gun nozzle technology incorporates a variety of innovative features to meet the needs of diverse industrial applications. These nozzles are typically constructed of wear-resistant materials for enhanced durability and reliability. Their design focuses on precise control of spray patterns and flow rates, ensuring uniformity and efficiency during the spraying process. Their modular design makes them easy to maintain and upgrade. Nozzles are used in a wide range of applications, from automotive painting, aerospace, and architectural coatings to petrochemicals, steel and metallurgy, the paper industry, and food processing. With the continuous advancement of technology, nozzle technology plays a significant role in improving industrial production efficiency, quality, and environmental performance. For example, the airless spray gun disclosed in patent US20130233945A1 provides an indexing mechanism for an airless spray gun. This indexing mechanism enables the spray gun's tip guard to rotate in 90-degree increments relative to the gun frame without loosening the retaining nut of the tip guard. However, this indexing mechanism suffers from issues such as incomplete rotation, structural jamming, and unstable connections. Furthermore, it cannot accurately determine whether the gear is fully rotated and suffers from poor gear adjustment accuracy. Summary of the Invention

[0003] The purpose of the present utility model is to overcome the shortcomings of the prior art and provide a magnetic switching structure for a spray gun nozzle, which enhances the user's physical sensation when switching the spray mode, allows the user to accurately judge the spray mode switching situation, improves the accuracy of the spray gun's spray angle switching, makes the overall structural connection more stable, and ensures the normal spraying effect of the spray gun.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A magnetic switching structure for a spray gun nozzle includes a first connecting member, which is used to connect to the spray gun and is rotatably connected to a rotating member via a guide tube. A magnetic switching component is provided between the rotating member and the first connecting member, and the magnetic switching component is used to provide a physical sensation of repulsion / attraction when the rotating member is rotated through magnetic force; one end of the rotating member is connected to a second connecting member, and the second connecting member is used to connect to the nozzle. The two ends of the guide tube are respectively connected to the first connecting member and the second connecting member.

[0006] One end of the first connecting member is provided with a connecting hole, and the connecting hole is provided with an internal thread. One end of the guide tube is provided with an external thread, and the external thread is fixedly connected to the internal thread of the connecting hole.

[0007] The magnetic switching assembly includes a first magnet and a second magnet magnetically connected to the first magnet. The first magnet and the second magnet are jointly arranged on the guide tube, and the first magnet is fixedly connected to the first connecting member, and the second magnet is fixedly connected to the rotating member.

[0008] The first magnet and the second magnet each have a plurality of alternately arranged N poles and S poles, and the number of the N poles and S poles of the first magnet is consistent with the number of the N poles and S poles of the second magnet.

[0009] Furthermore, a magnetic gasket is provided between the first magnet and the second magnet, and the magnetic gasket is used to facilitate relative smooth rotation between the first magnet and the second magnet.

[0010] Alternatively, the magnetic switching assembly includes at least one first fixed plate, at least two first N-pole magnets and first S-pole magnets alternately arranged on the first fixed plate, at least one second fixed plate and at least two second N-pole magnets and second S-pole magnets alternately arranged on the second fixed plate, the first fixed plate and the second fixed plate are jointly passed through the guide tube, and the first fixed plate is fixedly connected to the first connecting member, and the second fixed plate is fixedly connected to the rotating member, wherein each of the first N-pole magnets and the first S-pole magnet constitutes a first magnetic switching surface, and each of the second N-pole magnets and the second S-pole magnet constitutes a second magnetic switching surface.

[0011] Furthermore, a magnetic gasket is provided between the first magnetic switching surface and the second magnetic switching surface, and the magnetic gasket is used to facilitate the relative smooth rotation of the first magnetic switching surface and the second magnetic switching surface.

[0012] One end of the guide tube is connected with a sealing ring, which is used to prevent the leakage of the ejected material; the guide tube is provided with a circulation hole, which is used as a circulation channel for the ejected material.

[0013] The second connecting member is provided with a connecting end at one end which is sleeved on the guide tube. The outer surface of the connecting end is provided with a threaded hole which is used to connect the set screw. One side of the connecting end is provided with a threaded connecting end which is used to connect the nozzle.

[0014] The second connecting member is provided with a through hole, and the through hole is used as a flow channel for the spray.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. The magnetic switching component provides the user with a tactile sensation of repulsion / attraction when the rotating member and the first connecting member rotate relative to each other, thereby enhancing the user's physical sensation during the spray mode switching process, allowing the user to accurately judge the spray mode switching situation, and improving the accuracy of the spray angle switching of the spray gun.

[0017] 2. A magnetic gasket is provided between the first magnet and the second magnet, or between the first magnetic switching surface and the second magnetic switching surface, which can effectively reduce the magnetic attraction between the first magnet and the second magnet, or between the first magnetic switching surface and the second magnetic switching surface, ensuring that the first magnet and the second magnet, or the first magnetic switching surface and the second magnetic switching surface, rotate more smoothly relative to each other, allowing users to rotate the rotating part more smoothly and improving the physical sensation of rotation.

[0018] 3. The flange gasket at one end of the guide tube, combined with the sealing ring at the other end of the guide tube, improves the sealing between the spray gun and the first connecting piece, as well as between the second connecting piece and the nozzle, effectively preventing the liquid in the spray gun from leaking at various connections during the process of transporting it to the nozzle, thereby ensuring the normal spraying effect of the spray gun.

[0019] 4. The rotating part cooperates with the guide tube with a limit plate and is installed on the first connecting part, so that the rotating part can rotate around the guide tube on the first connecting part without being easily detached, ensuring the stability of the connection relationship between the rotating part, the guide tube and the first connecting part, making the overall structural connection of the utility model more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the present utility model.

[0021] Figure 2 It is an exploded view of the present utility model.

[0022] Figure 3 It is a cross-sectional view of the present utility model.

[0023] Figure 4 This is one of the exploded structural diagrams of the magnetic switching assembly of the present invention.

[0024] Figure 5 This is the second exploded structural diagram of the magnetic switching assembly of the present invention.

[0025] Description of Figure Numbers:

[0026] 1-first connecting member, 11-connecting hole, 12-internal thread, 2-flange gasket, 20-convex body, 3-magnetic switching assembly, 30-first magnet, 31-second magnet, 32-magnetic gasket, 33-first fixed plate, 34-first N-pole magnet, 35-first S-pole magnet, 36-second fixed plate, 37-second N-pole magnet, 38-second S-pole magnet, 4-flow guide tube, 40-external thread, 41-circuit hole, 42-limiting plate, 43-slot, 44-sealing ring, 5-rotating member, 50-screw hole, 51-bayonet, 6-stop screw, 7-rolling locking member, 8-circlip, 9-second connecting member, 90-connecting end, 900-threaded hole, 91-threaded connecting end, 92-through hole. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings: Specific embodiments

[0028] like Figure 1-5 As shown, the utility model relates to a magnetic switching structure of a spray gun nozzle, comprising a first connecting member 1, which is used to connect the spray gun, and the first connecting member 1 is rotatably connected to a rotating member 5 through a guide tube 4, and a magnetic switching component 3 is provided between the rotating member 5 and the first connecting member 1, and the magnetic switching component 3 is used to provide a repulsive / attractive sensation when the rotating member 5 is rotated through magnetic force; one end of the rotating member 5 is connected to a second connecting member 9, and the second connecting member 9 is used to connect the nozzle, and both ends of the guide tube 4 are respectively connected to the first connecting member 1 and the second connecting member 9; one end of the first connecting member 1 is provided with a connecting hole 11, and the connecting hole 11 is provided with an internal thread 12, and one end of the guide tube 4 is provided with an external thread 40, and the external thread 40 is fixedly connected to the internal thread 12 of the connecting hole 11.

[0029] like Figure 2-4 As shown, the magnetic switching assembly 3 includes a first magnet 30 and a second magnet 31 magnetically connected to the first magnet 30, the first magnet 30 and the second magnet 31 are jointly arranged on the guide tube 4, and the first magnet 30 is fixedly connected in the first connecting member 1, and the second magnet 31 is fixedly connected in the rotating member 5, wherein the first magnet 30 and the second magnet 31 are respectively provided with a plurality of alternating N poles and S poles, the number of N poles and S poles of the first magnet 31 is consistent with the number of N poles and S poles of the second magnet 32, and under normal conditions, the N pole of the first magnet 31 is magnetically connected to the S pole of the second magnet 32, and the S pole of the first magnet 31 is magnetically connected to the N pole of the second magnet 32.

[0030] Furthermore, the first magnet 30 and the second magnet 31 are preferably respectively provided with 4 N poles and 4 S poles alternately to realize horizontal or vertical switching of the spray state of the spray gun; assuming that the initial state of the spray gun is horizontal spraying, when the rotating part 5 is rotated, the second magnet 31 rotates with the rotating part 5. At this time, the N pole of the second magnet 32 ​​is close to the N pole of the first magnet 31, and the S pole of the first magnet 31 is close to the S pole of the first magnet 31, and "like repels like". The rotating part 5 continues to rotate, and when the N pole of the second magnet 32 ​​rotates to the next S pole of the first magnet 31, the N pole of the second magnet 32 ​​and the next S pole of the first magnet 31 are magnetically attracted, and the S pole of the second magnet 32 ​​and the next N pole of the first magnet 31 are magnetically attracted and stop rotating, completing one switching, and the spray gun The spray is switched to vertical spray; when the spray gun needs to be switched back to horizontal spray, it is only necessary to continue to rotate the rotating part 5. As described above, the "like repels like and opposites attract" of the magnetic switching component 3 can be used to give the user a "repulsion feeling" and "adsorption feeling" when rotating the rotating part 5, thereby enhancing the switching sensation, so that the user can more accurately grasp the accuracy of the switching gear; it should be noted that the number of N poles and S poles on the first magnet 30 and the second magnet 31 can be configured according to the switching angle and the number of gears required by the product, and no self-limitation is given here; in addition, the number of N poles and S poles on the first magnet 30 and the second magnet 31 is consistent, and the number of N poles and S poles must be greater than 2 to ensure that the product has gear adjustment and the switching process obtains the switching sensation.

[0031] In addition, in order to ensure the stability of the connection between the first magnet 30 and the first connecting member 1 and the second magnet 31 and the rotating member 5, and to prevent free rotation between the first magnet 30 and the first connecting member 1 or between the second magnet 31 and the rotating member 5, a limiting section (not shown) is provided on one side of the first magnet 30 and the second magnet 31 to ensure the normal operation of the mode switching process of the utility model.

[0032] like Figure 2 、 3 As shown, one end of the guide tube 4 is connected to a sealing ring 44, which is used to prevent leakage of the spray; the guide tube 4 is provided with a circulation hole 41, which is used as a circulation channel for the spray; further, a limit plate 42 is provided on the outside of the guide tube 4, which is used to prevent the rotating member 5 from detaching from the first connecting member 1; one end of the guide tube 4 is connected to a flange gasket 2, which is provided at one end of the connecting hole 11 of the first connecting member 1, and symmetrically provided with protrusions 20 on both sides of the flange gasket 2, which are used to better seal the two when the first connecting member 1 is connected to the spray gun, and to make the spray ejected along the circulation hole 41 of the guide tube 4, and the flange gasket 2 is used to prevent leakage of the spray.

[0033] like Figure 2 、3 As shown, the second connecting member 9 is provided with a connecting end 90 at one end, which is sleeved on the guide tube 4. The outer surface of the connecting end 90 is provided with a threaded hole 900, which is used to connect the set screw 6; a threaded connecting end 91 is provided on one side of the connecting end 90, which is used to connect the nozzle. The second connecting member 9 is provided with a through hole 92, which is used as a circulation channel for the spray.

[0034] Furthermore, if Figure 2 、 3 As shown, the magnetic switching assembly 3 is arranged between the first connecting member 1 and the rotating member 4, and the magnetic switching assembly 3 is sleeved on the guide tube 4, and the rotating member 5 is connected to the first connecting member 1 through the guide tube 4, and the rotating member 5 can rotate around the guide tube 4. At the same time, the rotating member 5 is limited by the limiting piece 42 provided on the guide tube 4, so that when the rotating member 5 rotates around the guide tube 4, it will not easily separate from the first connecting member 1; one end of the rotating member 5 is provided with a screw hole 50 that matches the threaded hole 900 provided at the connecting end 90 of the second connecting member 9, and the rotating member 5 and the second connecting member 9 are connected and fixed by a set screw 6, and when the rotating member 5 rotates, it can synchronously drive the second connecting member 9 to rotate.

[0035] like Figure 1-3 As shown, further, the rolling locking member 7 is sleeved on the rotating member 5, the retaining spring 8 is provided on the end bayonet 51 of the rotating member 5, and the sealing ring 44 is provided in the end bayonet 43 of the guide tube 4. When in use, the rotating member 5 is twisted to make the rotating member 5 drive the second magnet 31 to rotate around the guide tube 4, and the second connecting member 9 fixedly connected to the rotating member 5 rotates synchronously. Through the interaction between the multi-level magnetic poles provided on the second magnet 31 and the first magnet 30, when it is necessary to rotate to the injection gear, the second S pole 312 of the second magnet 31 rotates When it reaches the first S pole 302 of the first magnet 30, the repulsive force between the same poles makes it easier for the second connecting member 9 to rotate to the next gear, and then the second N pole 311 of the second magnet 31 rotates to the first S pole 302 of the first magnet 30. When the user continues to twist the rotating member 5, the hand will feel a larger magnetic resistance, so that it can be accurately judged that the gear has been adjusted to the right position, and after releasing the hand, the second connecting member 9 can automatically restore the gear position due to the interaction of the magnetic poles, and the gear position will not be unable to be accurately aligned due to missing or adding a certain angle of the button. Specific embodiment 2:

[0037] like Figure 1-3As shown in Figure 5, the utility model discloses a magnetic switching structure of a spray gun nozzle, wherein the magnetic switching assembly 3 includes at least one first fixed plate 33, at least two first N-pole magnets 34 and first S-pole magnets 35 alternately arranged on the first fixed plate 33, at least one second fixed plate 36, and at least two second N-pole magnets 37 and second S-pole magnets 38 alternately arranged on the second fixed plate 36, the first fixed plate 33 and the second fixed plate 36 are jointly passed through the guide tube 4, and the first fixed plate 33 is fixedly connected to the first connecting member 1, and the second fixed plate 36 is fixedly connected to the rotating member 5, wherein each of the first N-pole magnets 34 and the first S-pole magnet 35 constitutes a first magnetic switching surface, each of the first N-pole magnets 34 and the first S-pole magnet 35 is fixedly connected to the first fixed plate 33 by glue, each of the second N-pole magnets 37 and the second S-pole magnet 38 constitutes a second magnetic switching surface, and each of the second N-pole magnets 37 and the second S-pole magnet 38 is fixedly connected to the second fixed plate 36 by glue.

[0038] like Figure 5 As shown, a magnetic gasket 32 ​​is provided between the first magnetic switching surface and the second magnetic switching surface. Through the provision of the magnetic gasket 32, the magnetic force between the first magnetic switching surface and the second magnetic switching surface can be effectively weakened, so that the first magnetic switching surface and the second magnetic switching surface can rotate relatively smoothly.

[0039] The technical features not explained in this specific embodiment are explained using the technical features of specific embodiment 1 and will not be repeated here.

[0040] The utility model discloses a magnetic switching structure of a spray gun nozzle, which comprises at least two first N-pole magnets 34 and first S-pole magnets 35 alternately arranged as gear positions to form a first magnetic switching surface, and at least two second N-pole magnets 37 and second S-pole magnets 38 alternately arranged as gear positions to form a second magnetic switching surface. Under normal conditions of the utility model, the first N-pole magnet 34 is attracted to the second S-pole magnet 38, and the first S-pole magnet 35 is attracted to the second N-pole magnet 37.

[0041] When the user needs to switch the spray mode of the spray gun, they only need to rotate the rotating member 5. The second N-pole magnet 37 / second S-pole magnet 38 rotates with the rotating member 5. When the second N-pole magnet 37 / second S-pole magnet 38 approaches the next first N-pole magnet 34 / first S-pole magnet 35, "like poles repel each other" and the user will intuitively feel the "repulsion" and continue to rotate the rotating member 5. When the second N-pole magnet 37 / second S-pole magnet 38 approaches the next first S-pole magnet 35 / first N-pole magnet 34, "like poles attract each other". The user will intuitively feel the "attraction" and complete the spray mode switch. At this time, the user can more accurately feel the "repulsion" / "attraction" during the spray mode switch during the rotation process, thereby determining whether the spray mode switch has been switched to the correct position, improving the physical sensation of the spray mode switch and ensuring the accuracy of the spray mode switch.

[0042] In addition, in order to ensure the stability of the connection between the first magnetic switching surface and the first connecting member 1 and the second magnetic switching surface and the rotating member 5, and to avoid free rotation between the second magnetic switching surface and the first connecting member 1 or between the second magnetic switching surface and the rotating member 5, a limiting cut surface (not shown) is provided on one side of the first magnetic switching surface and the second magnetic switching surface respectively to ensure the normal operation of the mode switching process of the utility model.

[0043] It should be noted that, in the description of the present invention, the terms "upper", "lower", "inner", "one end", "end", "both sides", "one side" or "the other side" and the like to indicate positions or positional relationships are based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, cannot be understood as limiting the present invention; in addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; unless otherwise expressly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense, for example, "connected" ", can be a fixed connection, a detachable connection, or an integral connection; can be a mechanical connection, or an electrical connection; can be directly connected, or indirectly connected through an intermediate medium, or can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances; in addition, the standard parts used in this utility model can be purchased from the market. If special-shaped parts are involved, they can be customized according to the description and drawings. The specific connection methods of various parts adopt conventional means such as mature screws / bolts, hinged fasteners, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology and will not be described in detail here.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Therefore, without departing from the design spirit of the present invention, the equivalent changes or decorations made by ordinary engineering technicians in this field to the structure, features and principles described in the present invention should fall within the scope of protection of the patent application of the present invention.

Claims

1. A magnetic switching structure for a spray gun nozzle, comprising a first connecting member for connecting to a spray gun, characterized in that: The first connecting member is rotatably connected to the rotating member through a guide tube. A magnetic switching component is provided between the rotating member and the first connecting member. The magnetic switching component is used to provide a physical sensation of repulsion / attraction when the rotating member is rotated through magnetic force; one end of the rotating member is connected to a second connecting member, and the second connecting member is used to connect the nozzle. The two ends of the guide tube are respectively connected to the first connecting member and the second connecting member.

2. The magnetic switching structure of a spray gun nozzle according to claim 1, characterized in that: One end of the first connecting member is provided with a connecting hole, and the connecting hole is provided with an internal thread. One end of the guide tube is provided with an external thread, and the external thread is fixedly connected to the internal thread of the connecting hole.

3. The magnetic switching structure of a spray gun nozzle according to claim 1, characterized in that: The magnetic switching assembly includes a first magnet and a second magnet magnetically connected to the first magnet. The first magnet and the second magnet are jointly arranged on the guide tube, and the first magnet is fixedly connected to the first connecting member, and the second magnet is fixedly connected to the rotating member.

4. The magnetic switching structure of a spray gun nozzle according to claim 3, characterized in that: The first magnet and the second magnet each have a plurality of alternately arranged N poles and S poles, and the number of the N poles and S poles of the first magnet is consistent with the number of the N poles and S poles of the second magnet.

5. The magnetic switching structure of a spray gun nozzle according to claim 3, characterized in that: A magnetic gasket is provided between the first magnet and the second magnet, and the magnetic gasket is used to facilitate relative smooth rotation between the first magnet and the second magnet.

6. The magnetic switching structure of a spray gun nozzle according to claim 1, characterized in that: The magnetic force switching assembly includes at least one first fixed plate, at least two first N-pole magnets and first S-pole magnets alternately arranged on the first fixed plate, at least one second fixed plate and at least two second N-pole magnets and second S-pole magnets alternately arranged on the second fixed plate. The first fixed plate and the second fixed plate are jointly inserted into the flow guide pipe, and the first fixed plate is fixedly connected to the first connecting member, and the second fixed plate is fixedly connected to the rotating member, wherein each of the first N-pole magnets and the first S-pole magnet constitutes a first magnetic switching surface, and each of the second N-pole magnets and the second S-pole magnet constitutes a second magnetic switching surface.

7. The magnetic switching structure of a spray gun nozzle according to claim 6, characterized in that: A magnetic gasket is provided between the first magnetic switching surface and the second magnetic switching surface, and the magnetic gasket is used to facilitate the first magnetic switching surface and the second magnetic switching surface to rotate relatively smoothly.

8. The magnetic switching structure of a spray gun nozzle according to claim 1, characterized in that: One end of the guide tube is connected with a sealing ring, which is used to prevent the leakage of the ejected material; the guide tube is provided with a circulation hole, which is used as a circulation channel for the ejected material.

9. The magnetic switching structure of a spray gun nozzle according to claim 1, characterized in that: The second connecting member is provided with a connecting end at one end which is sleeved on the guide tube. The outer surface of the connecting end is provided with a threaded hole which is used to connect the set screw. One side of the connecting end is provided with a threaded connecting end which is used to connect the nozzle.

10. The magnetic switching structure of a spray gun nozzle according to claim 9, characterized in that: The second connecting member is provided with a through hole, and the through hole is used as a flow channel for the spray.

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