Nozzle structure and sandblasting apparatus

Abstract

The application belongs to the technical field of sand blasting equipment, and provides a nozzle structure and a sand blasting equipment. The nozzle structure comprises a spray gun, a sand blasting nozzle, a connecting assembly and two moving pieces, and the spray gun has a first channel; the sand blasting nozzle comprises a mounting part and a supporting part connected with the mounting part, the mounting part and the supporting part are arranged along the length direction, the mounting part is inserted into the first channel, the connecting assembly is inserted into the mounting part and the spray gun to enable the sand blasting nozzle to be detachably connected with the spray gun; the sand blasting nozzle has a second channel; the two moving pieces are connected with the supporting part, the two moving pieces are oppositely arranged along the radial direction and can move along the radial direction relative to the supporting part; a space between the two moving pieces forms a third channel, and the first channel, the second channel and the third channel are communicated along the length direction. The process operation of the replacement or cleaning of the nozzle structure provided by the application is relatively simple and efficient.

Description

Technical Field

[0001] This application relates to the field of sandblasting equipment technology, and more particularly to a nozzle structure and sandblasting equipment. Background Technology

[0002] Sandblasting equipment is a type of mechanical equipment that uses high-speed jetting abrasives (such as sand particles, steel shot, glass beads, etc.) to clean, strengthen, modify, or decorate the surface of workpieces.

[0003] Sandblasting equipment includes a nozzle structure through which abrasive particles are ejected. The nozzle structure controls the direction, shape, and speed of the abrasive particles, thereby achieving cleaning, strengthening, modification, or decoration of the workpiece surface. The nozzle structure is easily worn or clogged by the abrasive particles, affecting the sandblasting effect. Therefore, when the nozzle structure becomes worn or clogged, the sandblasting equipment needs to be stopped to replace or clean the nozzle structure.

[0004] In related technologies, the process of replacing or cleaning the nozzle structure is relatively complex and inefficient. Summary of the Invention

[0005] This application provides a nozzle structure and sandblasting equipment. The process of replacing or cleaning the nozzle structure is relatively simple and efficient.

[0006] This application provides a nozzle structure including a spray gun, a sandblasting nozzle, a connecting assembly, and two movable members. The spray gun has a first channel extending along its length. The sandblasting nozzle includes a mounting portion and a support portion connected to the mounting portion. The mounting portion and the support portion are arranged along the length direction. The mounting portion is inserted into the first channel. The connecting assembly is inserted into the mounting portion and the spray gun to make the sandblasting nozzle detachably connected to the spray gun. The sandblasting nozzle has a second channel extending along its length. Both movable members are connected to the support portion. The two movable members are arranged radially opposite to each other and are capable of moving radially relative to the support portion. The space between the two movable members forms a third channel extending along its length. The first channel, the second channel, and the third channel are connected along the length direction.

[0007] In one possible implementation, the nozzle structure provided in this application includes a moving part comprising a body portion and a plug portion connected to the body portion. The thickness of the plug portion along the radial direction is less than the thickness of the body portion, and the plug portion is inserted into a second channel. The support portion has a first through hole extending radially, and the plug portion has a second through hole aligned radially with the first through hole. The nozzle structure also includes an adjusting member, which is inserted into the first through hole and the second through hole. The adjusting member is threadedly connected to the inner wall of the first through hole, and the adjusting member is engaged with the inner wall of the second through hole and can rotate relative to the inner wall of the second through hole.

[0008] In one possible implementation, the nozzle structure provided in this application has a groove on the inner wall of the second through hole and a protrusion on the adjusting member, the protrusion being located in the groove, so that the adjusting member engages with the inner wall of the second through hole and can rotate relative to the inner wall of the second through hole.

[0009] In one possible implementation, the nozzle structure provided in this application has a radially extending groove on the support portion and a slider on the body portion that matches the groove. The slider is inserted into the groove, and when the moving member moves radially relative to the support portion, the slider can slide in the groove.

[0010] In one possible implementation, the nozzle structure provided in this application has a third through hole on the mounting part and a fourth through hole on the spray gun that is radially aligned with the third through hole; the connecting component is inserted into the third through hole and the fourth through hole.

[0011] In one possible implementation, the nozzle structure provided in this application includes a connecting component and a first elastic member. One end of the first elastic member is connected to the connecting member, and the other end of the first elastic member is connected to the inner wall of the third through hole. Under the elastic force of the first elastic member, the connecting member is inserted into the third through hole and the fourth through hole.

[0012] In one possible implementation, the nozzle structure provided in this application has a third through hole with a diameter greater than that of a fourth through hole; the connector includes a first connecting segment and a second connecting segment, the first connecting segment having a diameter smaller than that of the fourth through hole, and a portion of the first connecting segment being located in the fourth through hole; the second connecting segment is connected to a first elastic member, the second connecting segment having a diameter greater than that of the fourth through hole and smaller than that of the third through hole, and the second connecting segment being located in the third through hole.

[0013] In one possible implementation, the nozzle structure provided in this application further includes a trigger member, part of which is inserted into the fourth through hole and part of which extends out of the fourth through hole. The trigger member is used to abut against the first connecting section.

[0014] In one possible implementation, the nozzle structure provided in this application includes a fourth through hole comprising a first through hole section and a second through hole section, the second through hole section facing the third through hole, and the diameter of the second through hole section being larger than the diameter of the first through hole section; the triggering element includes a trigger rod and a first limiting plate and a second limiting plate located at both ends of the trigger rod, the diameter of the first limiting plate and the diameter of the second limiting plate being larger than the diameter of the first through hole section and smaller than the diameter of the second through hole section, the second limiting plate being located in the second through hole section, and the first limiting plate being located outside the spray gun.

[0015] In one possible implementation, the nozzle structure provided in this application further includes a second elastic member, which abuts against the first limiting plate and the outer wall of the spray gun.

[0016] In one possible implementation, the nozzle structure provided in this application has a groove extending along the length direction on the inner wall of the spray gun, and the groove and the fourth through hole are evenly spaced along the circumference; the mounting part has a block that matches the groove, the block is located in the groove, and the block can move in the groove.

[0017] In one possible implementation, the nozzle structure provided in this application has a baffle between the mounting part and the support part, the diameter of the baffle being larger than the diameter of the first channel, and the baffle abutting against the periphery of the first channel.

[0018] This application also provides a blasting device, including a sandblasting device body, a feeding pipe and the above-mentioned nozzle structure, wherein the spray gun of the nozzle structure is connected to the sandblasting device body through the feeding pipe.

[0019] The nozzle structure provided in this application comprises a spray gun, a sandblasting nozzle, a connecting assembly, and two moving parts. The spray gun has a first channel extending along its length. The sandblasting nozzle includes a mounting part and a support part connected to the mounting part. The mounting part is inserted into the first channel, and the connecting assembly is inserted into the mounting part and the spray gun to detachably connect the sandblasting nozzle to the spray gun. The sandblasting nozzle has a second channel extending along its length. Both moving parts are connected to the support part, are arranged radially opposite to each other, and are capable of radial movement relative to the support part. The space between the two moving parts forms a third channel extending along its length. Depending on the specific location of blockage in the first, second, and third channels, the sandblasting nozzle can be removed or the moving parts can be moved to expose or increase the size of the blockage, allowing for convenient and quick cleaning of the blockage in the nozzle structure. Connecting the spray gun and the sandblasting nozzle by inserting the connecting assembly into the mounting part and the spray gun simplifies the disassembly and installation of the sandblasting nozzle, making the replacement of the nozzle structure simple and efficient. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the spraying device provided in the embodiments of this application;

[0022] Figure 2 This is a schematic diagram of the nozzle structure provided in the embodiments of this application;

[0023] Figure 3 This is an exploded view of the nozzle structure provided in an embodiment of this application;

[0024] Figure 4 This is a schematic diagram of the structure of the blasting nozzle and the moving part in the nozzle structure provided in the embodiments of this application;

[0025] Figure 5 A schematic diagram of the nozzle structure provided in the embodiment of this application, showing the adjusting member inserted in the first through hole and the second through hole;

[0026] Figure 6 This is a schematic diagram of the nozzle structure, including the spray gun, the trigger, and the second elastic element, provided in an embodiment of this application.

[0027] Figure 7 This is a schematic diagram illustrating the connection method between the spray gun and the sandblasting nozzle in the nozzle structure provided in the embodiments of this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100 - Sandblasting device body;

[0030] 200-Feeding tube;

[0031] 300-nozzle structure;

[0032] 310-Spray gun;

[0033] 311 - First Passage;

[0034] 312 - Fourth through hole; 3121 - First through hole section; 3122 - Second through hole section;

[0035] 313 - Card slot;

[0036] 320-Sandblasting nozzle;

[0037] 321-Mounting part; 3211-Third through hole; 3212-Clamping block;

[0038] 322-Support part; 3221-First through hole; 3222-Slide groove;

[0039] 323-Baffle;

[0040] 330 - Connection Component;

[0041] 331-Connector; 3311-First connecting section; 3312-Second connecting section;

[0042] 332 - First elastic element;

[0043] 340 - Moving parts;

[0044] 341 - Third Channel;

[0045] 342-Body part; 3421-Slider;

[0046] 343-Plug-in part; 3431-Second through hole; 3432-Groove;

[0047] 350 - Adjusting element; 351 - Protrusion;

[0048] 360 - Trigger element; 361 - Trigger lever; 362 - First limiting plate; 363 - Second limiting plate;

[0049] 370 - Second elastic element;

[0050] 400-Boost Components;

[0051] C - Circumferential direction; R - Radial direction; L - Length direction. Detailed Implementation

[0052] 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, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0053] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0054] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and 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.

[0055] The terms "first," "second," and "third" (if any) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0056] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such as a process, method, system, product, or maintenance tool that includes a series of steps or units, which is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or maintenance tool.

[0057] Sandblasting equipment is a type of mechanical equipment that uses high-speed jetting abrasives (such as sand particles, steel shot, glass beads, etc.) to clean, strengthen, modify, or decorate the surface of workpieces.

[0058] Sandblasting equipment includes a nozzle structure through which abrasive particles are ejected. The nozzle structure controls the direction, shape, and speed of the abrasive particles, thereby achieving cleaning, strengthening, modification, or decoration of the workpiece surface. For example, the impact force of the abrasive can remove dirt from the workpiece surface for cleaning. The impact force of the abrasive can introduce a layer of compressive stress on the workpiece surface, thereby increasing the workpiece's strength. Abrasive deposition on the workpiece surface can modify or decorate the surface. Workpieces can be, for example, guide wheels on a photovoltaic slicing machine; the surface of the guide wheel needs to have high strength and requires sandblasting treatment.

[0059] The nozzle structure is easily worn or clogged by abrasive materials, which can affect the sandblasting effect on the workpiece surface. Once the nozzle structure is worn or clogged, the sandblasting equipment needs to be stopped to replace or clean the nozzle structure. Alternatively, the nozzle structure needs to be replaced when the dimensions of the workpiece to be sandblasted change.

[0060] In related technologies, both replacing and cleaning the nozzle structure requires complete disassembly, which is a complex and inefficient process. Furthermore, the nozzle structure is relatively long, and the area through which the abrasive passes is small, making cleaning difficult.

[0061] Based on this, the present application provides a nozzle structure and a sandblasting device, and the process of replacing or cleaning the nozzle structure is relatively simple and efficient.

[0062] Figure 1 This is a schematic diagram of the spraying device provided in an embodiment of this application.

[0063] See Figure 1 As shown, the sandblasting equipment includes a sandblasting device body 100, a feeding pipe 200, and a nozzle structure 300. The nozzle structure 300 is connected to the sandblasting device body 100 through the feeding pipe 200.

[0064] The sandblasting device body 100 contains abrasive material. One end of the feed pipe 200 is connected to the sandblasting device body 100, and the other end is connected to the nozzle structure 300. The abrasive material in the sandblasting device body 100 can be transported to the nozzle structure 300 through the feed pipe 200. The abrasive material ejected by the nozzle structure 300 needs to have a certain pressure. Therefore, a pressure boosting component 400 can be installed on the feed pipe 200 to increase the pressure of the abrasive material ejected by the nozzle structure 300.

[0065] Figure 2 This is a schematic diagram of the nozzle structure provided in an embodiment of this application. Figure 3 This is an exploded view of the nozzle structure provided in an embodiment of this application. Figure 4 This is a schematic diagram of the structure of the blasting nozzle and the moving part in the nozzle structure provided in the embodiment of this application.

[0066] See Figures 2 to 4 As shown, the nozzle structure 300 includes a spray gun 310, a sandblasting nozzle 320, a connecting assembly 330, and two moving parts 340. The spray gun 310 has a first channel 311 extending along the length direction L. The sandblasting nozzle 320 includes a mounting portion 321 and a support portion 322 connected to the mounting portion 321. The mounting portion 321 and the support portion 322 are arranged along the length direction L, and the mounting portion 321 is inserted into the first channel 311. The connecting assembly 330 is inserted into the mounting portion 321 and the spray gun 310 to allow the sandblasting nozzle 320 to be detachably connected to the spray gun 310. The sandblasting nozzle 320 has a second channel (not shown) extending along the length direction L. Both moving parts 340 are connected to the support portion 322, and the two moving parts 340 are arranged opposite each other along the radial direction R and are capable of moving relative to the support portion 322 along the radial direction R. The space between the two moving parts 340 forms a third channel 341 extending along the length direction L, and the first channel 311, the second channel and the third channel 341 are connected along the length direction L.

[0067] The nozzle structure 300 can be cylindrical in shape, and the nozzle structure 300 has a length direction L, a radial direction R and a circumferential direction C.

[0068] The spray gun 310, the sandblasting nozzle 320, and the moving parts 340 are arranged sequentially along the length direction L. The support part 322 of the sandblasting nozzle 320 is connected to the moving parts 340, and the mounting part 321 of the sandblasting nozzle 320 is connected to the spray gun 310. The spray gun 310 is connected to the feed pipe 200. The feed pipe 200 is sequentially connected to the first channel 311 in the spray gun 310, the second channel in the sandblasting nozzle 320, and the third channel 341 formed by the two moving parts 340. The abrasive flows from the feed pipe 200 through the first channel 311 in the spray gun 310 and the second channel in the sandblasting nozzle 320, and is finally ejected from the third channel 341 formed by the two moving parts 340.

[0069] Two movable members 340 are arranged opposite each other in the radial direction R and can move in the radial direction R relative to the support 322. When the third channel 341 between the two movable members 340 is blocked, at least one of the two movable members 340 can be moved in the radial direction R, so that the radial dimension of the third channel 341 is increased, making it easier for cleaning tools to enter the third channel 341 for cleaning.

[0070] When the position where the second channel is aligned with the support 322 is blocked, at least one of the two moving parts 340 can be moved radially R, so that the radial dimension of the third channel 341 increases. The cleaning tool can pass through the third channel 341 to enter the position where the second channel is aligned with the support 322, so as to clean the abrasive in the second channel.

[0071] When the position where the second channel aligns with the mounting part 321 is blocked, the connecting assembly 330 can be pulled out, and the sandblasting nozzle 320 can be removed from the spray gun 310, exposing the mounting part 321, so as to clean the abrasive at the position where the second channel aligns with the mounting part 321.

[0072] When the first channel 311 is blocked, the connecting assembly 330 can be pulled out and the sandblasting nozzle 320 removed from the spray gun 310, so that the first channel 311 can be exposed to facilitate the cleaning of the abrasive in the first channel 311.

[0073] Therefore, depending on the specific location of the blockage in the nozzle structure 300, the sandblasting nozzle 320 can be removed or the moving part 340 can be moved to expose the blockage or increase the size of the blockage, so that the blockage in the nozzle structure 300 can be cleaned conveniently and quickly.

[0074] When the sandblasting nozzle 320 or the moving part 340 is worn, simply pull out the connecting assembly 330, remove the sandblasting nozzle 320 from the spray gun 310, replace it with a new sandblasting nozzle 320 and moving part 340, and then insert the connecting assembly 330 into the mounting part 321 and the spray gun 310. The spray gun 310 and the sandblasting nozzle 320 are connected by inserting the connecting assembly 330 into the mounting part 321 and the spray gun 310. This makes the disassembly and installation process of the sandblasting nozzle 320 relatively simple. Compared with related technologies that require the removal of the entire nozzle structure, the replacement process of the nozzle structure 300 is simpler and more efficient.

[0075] In addition, the two moving parts 340 can move radially R relative to the support 322, which can also change the size of the third channel 341 radially R, so that the nozzle structure 300 can be adapted to workpieces of different sizes to be sandblasted.

[0076] The following describes the specific process of the moving part 340 moving radially R relative to the support part 322.

[0077] Figure 5 This is a schematic diagram of the nozzle structure provided in the embodiments of this application, in which the adjusting member is inserted into the first through hole and the second through hole.

[0078] See Figure 4 and Figure 5 As shown, the movable member 340 includes a body portion 342 and a plug portion 343 connected to the body portion 342. The thickness of the plug portion 343 along the radial direction R is less than the thickness of the body portion 342. The plug portion 343 is inserted into the second channel. The support portion 322 has a first through hole 3221 extending along the radial direction R, and the plug portion 343 has a second through hole 3431 aligned with the first through hole 3221 along the radial direction R. The nozzle structure 300 also includes an adjusting member 350, which is inserted into the first through hole 3221 and the second through hole 3431. The adjusting member 350 is threadedly connected to the inner wall of the first through hole 3221. The adjusting member 350 is engaged with the inner wall of the second through hole 3431 and can rotate relative to the inner wall of the second through hole 3431.

[0079] The thickness of the insertion part 343 along the radial direction R is less than the thickness of the body part 342, which facilitates the insertion part 343 in the second channel. It also makes the strength of the body part 342 greater than the strength of the insertion part 343, so that the moving part 340 can be easily inserted into the second channel with a small reduction in the strength of the moving part 340.

[0080] The inner wall of the first through hole 3221 has an internal thread, and the outer wall of the adjusting member 350 has an external thread. The adjusting member 350 is inserted into the first through hole 3221 and is threadedly connected to the first through hole 3221. When the adjusting member 350 is rotated, the adjusting member 350 can move radially R relative to the support part 322.

[0081] The adjusting member 350 engages with the inner wall of the second through hole 3431. When the adjusting member 350 moves radially R, it can drive the insertion part 343 to move radially R, thereby driving the moving member 340 to move radially R relative to the support part 322. The adjusting member 350 can rotate relative to the inner wall of the second through hole 3431, which can prevent the insertion part 343 from rotating when the adjusting member 350 rotates.

[0082] In one possible implementation, a bearing may be provided between the interior of the adjusting member 350 and the interior of the second through hole 3431, so that the adjusting member 350 can rotate relative to the interior of the second through hole 3431.

[0083] Please continue reading Figure 5As shown, in another possible embodiment, the inner wall of the second through hole 3431 has a groove 3432, and the adjusting member 350 has a protrusion 351 located in the groove 3432, so that the adjusting member 350 engages with the inner wall of the second through hole 3431 and can rotate relative to the inner wall of the second through hole 3431.

[0084] A groove 3432 is formed on the inner wall of the second through hole 3431, and a protrusion 351 abuts against the side wall of the groove 3432 along the radial direction R, so that the adjusting member 350 is engaged with the inner wall of the second through hole 3431. Thus, the adjusting member 350 can drive the moving member 340 to move radially R. The protrusion 351 can be clearance-fitted with the groove 3432, so that the engagement of the adjusting member 350 with the second through hole 3431 does not interfere with the rotation of the adjusting member 350.

[0085] Please continue reading Figures 2 to 4 As shown, in one possible embodiment, the support portion 322 has a groove 3222 extending radially R, and the body portion 342 has a slider 3421 that matches the groove 3222. The slider 3421 is inserted into the groove 3222, and when the moving member 340 moves radially R relative to the support portion 322, the slider 3421 can slide in the groove 3222.

[0086] The groove 3222 is a recess formed on the end face of the support portion 322, extending radially R. The slider 3421 extends along the length direction L from the body portion 342 of the moving member 340 toward the support portion 322 and is inserted into the groove 3222. When the moving member 340 moves radially R relative to the support portion 322, the slider 3421 moves radially R within the groove 3222. The cooperation between the slider 3421 and the groove 3222 constrains the movement path of the moving member 340, preventing deviation and ensuring stable movement.

[0087] The following describes the specific method of detachable connection between the sandblasting nozzle 320 and the spray gun 310.

[0088] Figure 6 This is a schematic diagram of the nozzle structure, including the spray gun, trigger, and second elastic element, provided in the embodiments of this application. Figure 7 This is a schematic diagram illustrating the connection method between the spray gun and the sandblasting nozzle in the nozzle structure provided in the embodiments of this application.

[0089] See Figure 3 , Figure 4 , Figure 6 and Figure 7As shown, the mounting part 321 has a third through hole 3211, and the spray gun 310 has a fourth through hole 312 aligned radially with the third through hole 3211 along the radial direction R; the connecting assembly 330 is inserted into the third through hole 3211 and the fourth through hole 312 to make the sandblasting nozzle 320 detachably connected to the spray gun 310.

[0090] In one possible implementation, the connecting assembly 330 includes a connector 331 and a first elastic member 332. One end of the first elastic member 332 is connected to the connector 331, and the other end of the first elastic member 332 is connected to the inner wall of the third through hole 3211. Under the elastic force of the first elastic member 332, the connector 331 is inserted into the third through hole 3211 and the fourth through hole 312.

[0091] The first elastic element 332 can be an elastic sleeve or a coil spring. Figure 4 and Figure 7 In the embodiment shown, the first elastic element 332 is a helical spring. The connecting member 331 is a column. One end of the first elastic element 332 in the direction of elastic force can be fixedly connected to the inner wall of the first through hole 3221, and the other end of the first elastic element 332 in the direction of elastic force can be fixedly connected to the end face of the connecting member 331 facing the first through hole 3221, which can prevent the connecting member 331 from coming out of the first through hole 3221.

[0092] The length of the first elastic element 332 along the radial direction R is set. Under the action of the elastic force of the first elastic element 332, the connector 331 is partially located in the third through hole 3211 and partially located in the fourth through hole 312. The elastic force of the first elastic element 332 can also prevent the connector 331 from moving along the radial direction R. Thus, the connector 331 can be reliably inserted into the third through hole 3211 and the fourth through hole 312 to connect the sandblasting nozzle 320 and the spray gun 310.

[0093] When it is necessary to remove the sandblasting nozzle 320 from the spray gun 310, pressure is applied to the connector 331 to overcome the elastic force of the first elastic member 332, so that the connector 331 can be moved out of the fourth through hole 312, making it easier to remove the sandblasting nozzle 320 from the spray gun 310.

[0094] When the sandblasting nozzle 320 is installed on the spray gun 310, pressure is applied to the connector 331 to overcome the elastic force of the first elastic member 332, so that the connector 331 is completely located in the third through hole 3211. After the mounting part 321 of the sandblasting nozzle 320 is inserted into the first channel 311, as the mounting part 321 moves to align the third through hole 3211 with the fourth through hole 312, the connector 331 automatically enters the fourth through hole 312 under the action of the elastic force of the first elastic member 332, making the installation of the sandblasting nozzle 320 and the spray gun 310 more convenient.

[0095] Please continue reading Figure 4 and Figure 7 As shown, the diameter of the third through hole 3211 is larger than the diameter of the fourth through hole 312; the connector 331 includes a first connecting segment 3311 and a second connecting segment 3312, the diameter of the first connecting segment 3311 is smaller than the diameter of the fourth through hole 312, and a portion of the first connecting segment 3311 is located in the fourth through hole 312; the second connecting segment 3312 is connected to the first elastic member 332, the diameter of the second connecting segment 3312 is larger than the diameter of the fourth through hole 312 and smaller than the diameter of the third through hole 3211, and the second connecting segment 3312 is located in the third through hole 3211.

[0096] The diameter of the first connecting section 3311 is smaller than the diameter of the fourth through hole 312, and the diameter of the first connecting section 3311 is also smaller than the diameter of the third through hole 3211, so that the first connecting section 3311 can move in the third through hole 3211 to facilitate connecting the sandblasting nozzle 320 and the spray gun 310 or removing the sandblasting nozzle 320 from the spray gun 310.

[0097] The diameter of the second connecting section 3312 is larger than the diameter of the fourth through hole 312 and smaller than the diameter of the third through hole 3211, so that the second connecting section 3312 can only move in the third through hole 3211. When the connector 331 moves to the point where the second connecting section 3312 is close to the fourth through hole 312, the periphery of the fourth through hole 312 can block the connector 331 from continuing to move, thereby preventing the connector 331 from accidentally coming out of the spray gun 310.

[0098] Please continue reading Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the nozzle structure 300 also includes a trigger 360, part of which is inserted into the fourth through hole 312 and part of which extends out of the fourth through hole 312. The trigger 360 is used to abut against the first connecting section 3311.

[0099] When it is necessary to remove the sandblasting nozzle 320 from the spray gun 310, press the trigger 360. The trigger 360 abuts against the first connecting section 3311, which pushes the connecting member 331 to move radially R. The connecting member 331 overcomes the elastic force of the first elastic member 332 and disengages from the fourth through hole 312. Then, the sandblasting nozzle 320 can be removed from the spray gun 310. The trigger 360 facilitates operation for the operator.

[0100] Please continue reading Figure 7As shown, the fourth through hole 312 includes a first through hole section 3121 and a second through hole section 3122. The second through hole section 3122 faces the third through hole 3211, and the diameter of the second through hole section 3122 is larger than the diameter of the first through hole section 3121. The trigger member 360 includes a trigger rod 361 and a first limiting plate 362 and a second limiting plate 363 located at both ends of the trigger rod 361. The diameter of the first limiting plate 362 and the diameter of the second limiting plate 363 are larger than the diameter of the first through hole section 3121 and smaller than the diameter of the second through hole section 3122. The second limiting plate 363 is located in the second through hole section 3122, and the first limiting plate 362 is located outside the spray gun 310.

[0101] The diameters of the first limiting plate 362 and the second limiting plate 363 are larger than the diameter of the first through-hole section 3121, which prevents the trigger element 360 from falling into the first channel 311 or detaching from the spray gun 310. The diameter of the second limiting plate 363 is smaller than the diameter of the second through-hole section 3122, which prevents the second limiting plate 363 from interfering with the movement of the trigger element 360 in the fourth through-hole 312. The diameter of the first limiting plate 362 can be equal to the diameter of the second limiting plate 363, thereby making the structure of the trigger element 360 symmetrical and simplifying the manufacturing process.

[0102] In one possible implementation, the nozzle structure 300 further includes a second elastic element 370, which abuts between the first limiting plate 362 and the outer wall of the spray gun 310.

[0103] The second elastic element 370 can also be an elastic sleeve or a coil spring. Figure 6 and Figure 7 In the embodiment shown, the second elastic element 370 is a helical spring. The second elastic element 370 can be sleeved on the trigger rod 361. One end of the second elastic element 370 in the elastic direction abuts against the first limiting plate 362, and the other end of the second elastic element 370 in the elastic direction abuts against the outer wall of the spray gun 310.

[0104] The elastic force of the second elastic element 370 can limit the movement of the trigger element 360 and prevent the trigger element 360 from being displaced due to the shaking generated during the use of the nozzle structure 300.

[0105] Please continue reading Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, in one possible embodiment, the inner wall of the spray gun 310 has a slot 313 extending along the length direction L, and the slot 313 and the fourth through hole 312 are evenly spaced along the circumferential direction C; the mounting part 321 has a locking block 3212 that matches the slot 313, the locking block 3212 is located in the slot 313, and the locking block 3212 is movable in the slot 313.

[0106] The slot 313 is formed on the inner wall of the spray gun 310. The slot 313 extends along the length direction L. The extension length of the slot 313 can be set according to the length of the mounting part 321.

[0107] The mounting part 321 has a locking block 3212, which extends along the length direction L. When the mounting part 321 is inserted into the first channel 311, the locking block 3212 can be inserted into the slot 313. By engaging the slot 313 with the locking block 3212, the connection between the sandblasting nozzle 320 and the spray gun 310 can be made more stable, preventing the sandblasting nozzle 320 from shaking or shifting relative to the spray gun 310. In addition, when the mounting part 321 is inserted into the first channel 311, the engagement of the locking block 3212 with the slot 313 also serves a positioning function.

[0108] Please continue reading Figures 2 to 4 As shown, a baffle 323 is provided between the mounting part 321 and the support part 322. The diameter of the baffle 323 is larger than the diameter of the first channel 311, and the baffle 323 abuts against the periphery of the first channel 311. The baffle 323 can effectively block the gap connecting the spray gun 310 and the sandblasting nozzle 320, preventing abrasive from leaking out of the gap.

[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A nozzle structure, characterized in that, include: A spray gun having a first channel extending along its length; A sandblasting nozzle and a connecting assembly, the sandblasting nozzle including a mounting portion and a support portion connected to the mounting portion, the mounting portion and the support portion being arranged along the length direction, the mounting portion being inserted into a first channel, and the connecting assembly being inserted into the mounting portion and the spray gun to detachably connect the sandblasting nozzle to the spray gun; the sandblasting nozzle having a second channel extending along the length direction; Two movable members are arranged radially opposite each other. Each movable member includes a body portion and a plug portion connected to the body portion. The thickness of the plug portion along the radial direction is less than the thickness of the body portion. The plug portion is inserted into the second channel. The support portion has a first through hole extending radially, and the plug portion has a second through hole aligned radially with the first through hole. The nozzle structure further includes an adjusting member, which is inserted into the first through hole and the second through hole. The adjusting member is threadedly connected to the inner wall of the first through hole. The inner wall of the second through hole has a groove, and the adjusting member has a protrusion located in the groove, so that the adjusting member can engage with the inner wall of the second through hole and rotate relative to the inner wall of the second through hole; The two movable members are capable of moving radially relative to the support; the space between the two movable members forms a third channel extending along the length direction, and the first channel, the second channel and the third channel are connected along the length direction.

2. The nozzle structure according to claim 1, characterized in that, The support portion has a groove extending radially, and the body portion has a slider that matches the groove. The slider is inserted into the groove, and when the moving member moves radially relative to the support portion, the slider can slide in the groove.

3. The nozzle structure according to claim 1 or 2, characterized in that, The mounting part has a third through hole, and the spray gun has a fourth through hole aligned radially with the third through hole; the connecting assembly is inserted into the third through hole and the fourth through hole.

4. The nozzle structure according to claim 3, characterized in that, The connecting assembly includes a connector and a first elastic member. One end of the first elastic member is connected to the connector, and the other end of the first elastic member is connected to the inner wall of the third through hole. Under the elastic force of the first elastic member, the connector is inserted into the third through hole and the fourth through hole.

5. The nozzle structure according to claim 4, characterized in that, The diameter of the third through hole is larger than the diameter of the fourth through hole; The connector includes a first connecting segment and a second connecting segment, wherein the diameter of the first connecting segment is smaller than the diameter of the fourth through hole, and a portion of the first connecting segment is located in the fourth through hole; The second connecting segment is connected to the first elastic element. The diameter of the second connecting segment is larger than the diameter of the fourth through hole and smaller than the diameter of the third through hole. The second connecting segment is located in the third through hole.

6. The nozzle structure according to claim 5, characterized in that, It also includes a trigger, part of which is inserted into the fourth through hole and part of which extends out of the fourth through hole, and the trigger is used to abut against the first connecting segment.

7. The nozzle structure according to claim 6, characterized in that, The fourth through hole includes a first through hole section and a second through hole section, the second through hole section facing the third through hole, and the diameter of the second through hole section is larger than the diameter of the first through hole section; The triggering element includes a trigger rod and a first limiting plate and a second limiting plate located at both ends of the trigger rod. The diameters of the first limiting plate and the second limiting plate are greater than the diameter of the first through-hole section and smaller than the diameter of the second through-hole section. The second limiting plate is located in the second through-hole section, and the first limiting plate is located outside the spray gun.

8. The nozzle structure according to claim 7, characterized in that, It also includes a second elastic element, which abuts against the first limiting plate and the outer wall of the spray gun.

9. The nozzle structure according to claim 3, characterized in that, The inner wall of the spray gun has a slot extending along the length direction, and the slot and the fourth through hole are evenly spaced circumferentially; the mounting part has a block that matches the slot, the block is located in the slot, and the block can move in the slot.

10. The nozzle structure according to claim 3, characterized in that, A baffle is provided between the mounting part and the supporting part. The diameter of the baffle is larger than the diameter of the first channel, and the baffle abuts against the periphery of the first channel.

11. A sandblasting device, characterized in that, The device includes a sandblasting apparatus body, a feed pipe, and a nozzle structure as described in any one of claims 1 to 10, wherein the spray gun of the nozzle structure is connected to the sandblasting apparatus body via the feed pipe.

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