Powder coating spray gun capable of adjusting spraying angle and distance

Abstract

The invention discloses a powder coating spray gun capable of adjusting the spraying angle and distance, the powder coating spray gun comprises a gun body, a rotating assembly, a lifting assembly, a locking assembly and an adjusting assembly, the rotating assembly comprises a vertical plate, the vertical plate is fixedly connected with the gun body, one side of the vertical plate is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a first rotating shaft, and the first rotating shaft is fixedly connected with a second rotating shaft. A first gear is fixedly connected to one side of the first rotating shaft, a second gear is connected to one side of the first gear in an engaged mode, a circular ring block is fixedly connected to one side of the vertical plate, the second gear is connected with the circular ring block, two long rods are connected to the top of the second gear, and moving rods are connected to the inner sides of the long rods. One side of the moving rod is connected with a fixing block, the fixing block is connected with the adjusting assembly, the lifting assembly comprises a round rod, the round rod is rotationally connected with the gun body, and one side of the gun body is connected with an outer cover.

Description

Technical Field

[0001] The invention relates to the technical field of coating spray guns, in particular to a powder coating spray gun with adjustable spraying angle and distance. Background Art

[0002] Powder coating is an efficient and environmentally friendly surface treatment technology. Its core lies in using a spray gun to accurately spray fine powder coating particles onto the surface of the workpiece, and through the subsequent high-temperature curing process, these powder particles melt and firmly adhere to the workpiece, forming a layer of coating that is both beautiful and durable. This technology occupies a pivotal position in many industrial fields such as automobile manufacturing, household appliances, and furniture decoration.

[0003] However, in actual application, powder coating still faces some limitations and challenges, especially in the ability to adjust the spraying angle and distance.

[0004] Insufficient spray angle adjustment: Traditional powder coating spray guns are usually designed with a fixed spray angle, which means that when faced with workpieces of various shapes and complex surfaces, the spray gun has difficulty adapting to subtle changes in the workpiece surface, resulting in uneven spraying effects.

[0005] Spraying distance limitation: On the other hand, the spraying distance between the spray gun and the workpiece is also a key factor affecting the coating quality. Existing spray guns can only work within a specific distance. However, when dealing with large workpieces or scenes that require long-distance spraying, this fixed spraying distance limits large-scale, high-efficiency spraying operations, increasing the difficulty and time cost of operation. In addition, spraying distances that are too close or too far may cause problems such as accumulation, sagging or insufficient adhesion of the coating, further affecting the quality and durability of the coating.

[0006] Therefore, it is necessary to provide a powder coating spray gun with adjustable spraying angle and distance to facilitate operation. Summary of the invention

[0007] The object of the present invention is to provide a powder coating spray gun with adjustable spraying angle and distance, so as to solve the problems raised in the above background technology.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a powder coating spray gun with adjustable spraying angle and distance comprises a gun body, a rotating assembly, a lifting assembly, a locking assembly, and an adjusting assembly.

[0009] The rotating assembly comprises a vertical plate, the vertical plate and the gun body are fixedly connected, one side of the vertical plate is fixedly connected to a motor 1, the output end of the motor 1 is fixedly connected to a rotating shaft 1, one side of the rotating shaft 1 is fixedly connected to a gear 1, one side of the gear 1 is meshingly connected to a gear 2, one side of the vertical plate is fixedly connected to a circular ring block, the gear 2 is connected to the circular ring block, the top of the gear 2 is connected to two long rods, the inner side of the long rods is connected to a moving rod, one side of the moving rod is connected to a fixed block, and the fixed block is connected to the adjustment assembly;

[0010] The lifting assembly comprises a round rod, the round rod and the gun body are rotatably connected, one side of the gun body is connected to an outer cover, one side of the outer cover is rotatably connected to a cross bar, the cross bar is connected to a locking mechanism, one side of the cross bar is fixedly connected to a bevel gear 1, one side of the bevel gear 1 is meshingly connected to a bevel gear 2, the bevel gear 2 and the round rod are fixedly connected, one side of the circular ring block is fixedly connected to a double plate, a square is placed inside the double plate, the square is connected to the round rod, the top of the square is fixedly connected to a limiting plate, the top of the limiting plate is fixedly connected to a cylinder, and the cylinder is connected to a fixed block;

[0011] The adjustment component comprises a second motor, the second motor and the fixed block are fixedly connected, the output end of the second motor is fixedly connected to a second rotating shaft, one side of the second rotating shaft is fixedly connected to a third gear, one side of the third gear is meshingly connected to a fourth gear, the top of the fourth gear is fixedly connected to a spray gun head, one side of the spray gun head is connected to a pipe, and the pipe is connected to a gun body;

[0012] The locking assembly includes a rotating block, the rotating block and the cross bar are fixedly connected, a short rod is fixedly connected to one side of the rotating block, a limiting rod is arranged inside the short rod, and a plurality of grooves are opened on one side of the outer cover, and the limiting rods and the grooves correspond to each other.

[0013] In one embodiment, the gear 2 and the circular ring block are rotatably connected, a circular groove is opened in the middle of the gear 2, the circular rod passes through the circular groove and the circular ring block, and the gear 2 and the long rod are fixedly connected.

[0014] In one embodiment, a thread is disposed on the outer side of the top of the round rod, and the round rod and the block are connected by threads.

[0015] In one embodiment, the long rod and the movable rod are slidably connected, the movable rod and the fixed block are fixedly connected, two long grooves are opened on the inner side of the long rod, and two long strips are fixedly connected on the outer side of the movable rod, and the long strips and the long grooves correspond to each other. A convex ring is fixedly connected to the top of the cylinder, and an annular groove is opened on the inner side of the bottom of the fixed block, and the convex ring and the annular groove correspond to each other.

[0016] In one embodiment, the gear three is a small gear, and the gear four is a large gear.

[0017] In one embodiment, a cross groove is provided on one side of the short rod, a stop block is fixedly connected to the outer side of the limit rod, a spring is provided on the outer side of the limit rod, a clamping block is fixedly connected to one side of the limit rod, and the clamping block corresponds to the cross groove.

[0018] In one embodiment, the cross groove has a deep transverse groove and a shallow vertical groove.

[0019] In one embodiment, the stop block and the interior of the short rod are slidably connected, and the spring and the inner side of the short rod are fixedly connected.

[0020] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0021] 1. The present invention is provided with a lifting assembly, so that the staff can easily adjust the distance between the spray gun head and the workpiece. This height adjustability enables the spray gun to adapt to the spraying requirements of different distances, thereby enhancing the adaptability and practicality of the device. At the same time, through the cooperation of the limit rod and the groove, the locking assembly can ensure the stability after the distance is adjusted, thereby avoiding uneven spraying caused by the shaking of the spray gun during the spraying process.

[0022] 2. The present invention is provided with an adjustment component, so that the spray gun head can be rotated left and right, thereby adjusting the spraying angle, enhancing the flexibility of the spraying operation, and the spray gun can meet the spraying needs of complex surfaces. By cooperating with the rotating component, the spray gun rotates after adjusting the angle, which can increase the spraying range and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0024] In the attached picture:

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a partial three-dimensional schematic diagram of the present invention;

[0027] Figure 3 It is a three-dimensional schematic diagram of the lifting assembly and the rotating assembly of the present invention;

[0028] Figure 4 It is a partial three-dimensional schematic diagram of the lifting assembly and the rotating assembly of the present invention;

[0029] Figure 5 It is a three-dimensional schematic diagram of the long rod and cylinder structure of the present invention;

[0030] Figure 6 is a three-dimensional schematic diagram of the adjustment assembly of the present invention;

[0031] Figure 7 It is a partial three-dimensional schematic diagram of the adjustment component of the present invention;

[0032] Figure 8 is a three-dimensional schematic diagram of the locking assembly of the present invention;

[0033] Fig. 9 is a partial three-dimensional schematic diagram of the locking assembly of the present invention;

[0034] Fig.10 is a schematic diagram of a limit rod of the present invention;

[0035] In the figure: 1, gun body; 101, outer cover; 102, vertical plate; 103, pipe; 104, round rod; 105, square; 106, double plate; 107, limit plate; 108, cylinder; 109, convex ring; 110, groove; 111, circular ring block;

[0036] 2. Motor 1; 201. Rotating shaft 1; 202. Gear 1; 203. Gear 2; 204. Long rod; 205. Moving rod; 206. Long strip; 207. Fixed block;

[0037] 3. Crossbar; 301. Bevel gear 1; 302. Bevel gear 2; 303. Rotating block; 304. Short rod; 305. Limit rod; 306. Stop block; 307. Spring; 308. Block;

[0038] 4. Motor 2; 401. Rotating shaft 2; 402. Gear 3; 403. Gear 4; 404. Spray gun head. DETAILED DESCRIPTION

[0039] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0040] See also Figure 1-10 The present invention provides a technical solution: a powder coating spray gun with adjustable spraying angle and distance, comprising a gun body 1, a rotating component, a lifting component, a locking component, and an adjusting component.

[0041] The rotating assembly includes a vertical plate 102, the vertical plate 102 and the gun body 1 are fixedly connected, a motor 2 is fixedly connected to one side of the vertical plate 102, the output end of the motor 2 is fixedly connected to a rotating shaft 201, a gear 202 is fixedly connected to one side of the rotating shaft 201, a gear 203 is meshedly connected to one side of the gear 202, a circular ring block 111 is fixedly connected to one side of the vertical plate 102, the gear 203 is connected to the circular ring block 111, two long rods 204 are connected to the top of the gear 203, the inner side of the long rod 204 is connected to a moving rod 205, one side of the moving rod 205 is connected to a fixed block 207, and the fixed block 207 is connected to the adjustment assembly;

[0042] The lifting assembly includes a round rod 104, the round rod 104 and the gun body 1 are rotatably connected, one side of the gun body 1 is connected to an outer cover 101, one side of the outer cover 101 is rotatably connected to a cross bar 3, the cross bar 3 is connected to a locking mechanism, one side of the cross bar 3 is fixedly connected to a bevel gear 1 301, one side of the bevel gear 1 301 is meshedly connected to a bevel gear 2 302, the bevel gear 2 302 and the round rod 104 are fixedly connected, one side of the circular ring block 111 is fixedly connected to a double plate 106, a square 105 is placed inside the double plate 106, the square 105 and the round rod 104 are connected, the top of the square 105 is fixedly connected to a limiting plate 107, the top of the limiting plate 107 is fixedly connected to a cylinder 108, and the cylinder 108 is connected to a fixed block 207;

[0043] The adjustment component includes a motor 2 4, the motor 2 4 and the fixed block 207 are fixedly connected, the output end of the motor 2 4 is fixedly connected to the rotating shaft 2 401, one side of the rotating shaft 2 401 is fixedly connected to the gear 3 402, one side of the gear 3 402 is meshedly connected to the gear 4 403, the top of the gear 403 is fixedly connected to the spray gun head 404, one side of the spray gun head 404 is connected to the pipe 103, and the pipe 103 is connected to the gun body 1;

[0044] The locking assembly includes a rotating block 303, which is fixedly connected to the cross bar 3. A short rod 304 is fixedly connected to one side of the rotating block 303, and a limiting rod 305 is arranged inside the short rod 304. A plurality of grooves 110 are opened on one side of the outer cover 101, and the limiting rod 305 corresponds to the groove 110.

[0045] Specifically, when the worker is ready to start spraying, the gun body 1, as the main part of the entire spray gun, carries all key components and is connected to the powder coating supply source through the internal pipe 103. The outer cover 101 covers one side of the gun body 1, which not only plays a protective role, but also provides installation space for the lifting component and the locking component.

[0046] The staff first opens the locking mechanism, that is, pulls up the limit rod 305, and the limit rod 305 no longer rests against the inside of the groove 110, thus releasing the lock. At this time, the staff rotates the rotating block 303, which causes the short rod 304 to rotate, so that the bevel gear 301 fixedly connected thereto can rotate. The short rod 304 and the outer cover 101 are rotatably connected, and the outer cover 101 provides a certain supporting force for the short rod 304, and the short rod 304 can rotate. When the bevel gear 1 301 rotates, the bevel gear 2 302 meshed with it rotates, so that the round rod 104 will rotate, because the round rod 104 and the gun body 1 are rotatably connected, the block 105 can move while the round rod 104 rotates, and the direction of rotation of the round rod 104 is different, and the block 105 can move upward or downward. When the block is upward, the limit plate 107 and the cylinder 108 are both moved upward, and the moving rod 205 is also moved upward, so that the fixed block 207 moves upward, that is, the gun body 1 is stretched as a whole, and the spray gun head 404 extends outward, so that the staff can adjust the length of the spray gun head 404 extending outward, facing the work of long-distance spraying, the spraying work can be better completed, and the spray gun head 404 is farther away from the staff, so as to ensure the health and safety of the staff as much as possible. After the spray gun is adjusted to the desired length, the limit rod 305 returns to the inside of the groove 110 at this time, and completes the locking again to ensure the stability after the length adjustment.

[0047] When the staff wants to make the spraying area larger, the motor 2 4 is turned on at this time, and the rotating shaft 2 401 at the output end rotates, driving the gear 3 402 to rotate, so that the gear 4 403 meshing with it rotates, and the spray gun head 404 rotates left and right accordingly. When the spray gun head 404 rotates to the left a little, the staff turns on the motor 1 2, and the rotating shaft 1 201 at the output end rotates, driving the gear 1 202 to rotate, and the gear 2 203 meshing with it rotates, and drives the long rod 204 to rotate, so that the moving rod 205 rotates, so that the fixed block 207 at the top rotates, that is, the spray gun head 404, and the spray gun head 404 is rotated to the left by a certain angle, and the spray gun head 404 is centered at the connection with the gear 4 403, and the spray gun head 404 changes from vertical to oblique, so that the spraying range of the spray gun head 404 will become larger when it rotates, thereby improving work efficiency.

[0048] When the staff wants to spray at different angles, the rotating component is not opened, and only the adjustment component is used to move the spray gun head 404 left and right, so that the angle can be adjusted, so that complex surfaces can also be sprayed completely.

[0049] The device is provided with a lifting component, so that the staff can easily adjust the distance between the spray gun head and the workpiece. The device can adapt to spraying at long and short distances, and has strong adaptability. By providing an adjustment component, the angle of the spray head 404 can be adjusted, which enhances the flexibility of the spraying operation. By providing a locking component, the stability after adjusting the distance is ensured. By adjusting the spraying angle and distance, the operator can quickly adapt to the spraying requirements of different workpieces, thereby improving work efficiency.

[0050] The second gear 203 and the annular block 111 are rotatably connected. A circular groove is provided in the middle of the second gear 203. The round rod 104 passes through the circular groove and the annular block 111. The second gear 203 and the long rod 204 are fixedly connected.

[0051] Specifically, the round rod 104 passes through the middle of the round groove and the circular ring block 111, that is, there is no connection, so that the lifting assembly and the rotating assembly can not interfere with each other. The circular ring block 111 provides a certain support force for the gear 2 203, and the rotating connection ensures that the gear 2 203 can rotate. The gear 2 203 and the long rod 204 are fixedly connected, so that when the gear 2 203 rotates, the long rod 204 can rotate accordingly.

[0052] The top outer side of the round rod 104 is provided with a thread, and the round rod 104 and the block 105 are connected by threads.

[0053] Specifically, because the round rod 104 and the block 105 are threadedly connected, when the round rod 104 rotates, the block 105 should move with the rotation, but the block 105 is restricted inside the double plates 106 and fits the double plates 106, thus limiting the rotation of the block 105, so that the block 105 can only move, thereby achieving overall lifting and lowering.

[0054] The long rod 204 and the movable rod 205 are slidably connected, and the movable rod 205 and the fixed block 207 are fixedly connected. Two long grooves are provided on the inner side of the long rod 204, and two long strips 206 are fixedly connected on the outer side of the movable rod 205, and the long strips 206 correspond to the long grooves. A convex ring 109 is fixedly connected to the top of the cylinder 108, and an annular groove is provided on the inner side of the bottom of the fixed block 207, and the convex ring 109 corresponds to the annular groove.

[0055] Specifically, the long rod 204 and the mobile rod 205 are connected in a sliding manner, so that the mobile rod 205 can be raised and lowered under the drive of the lifting assembly, and the two long strips 206 on the outside of the mobile rod 205 are just inside the two long grooves of the long rod 204, so that when the long rod 204 rotates, the long grooves press against the long strips 206 and rotate with the long strips 206, so that the mobile rod 205 can rotate, and through the design of the long grooves and the long strips 206, the mobile rod 205 can be raised and rotated, and the lifting and rotating do not affect each other. The convex ring 109 is inside the annular groove inside the bottom of the fixed block 207, and the convex ring 109 rotates inside, so that when the rotating assembly rotates with the fixed block 207, the cylinder 108 at the bottom can be immobile, and the cylinder 108 and the lifting assembly are together, that is, the rotation and lifting do not affect each other, and when the lifting assembly is raised, the convex ring 109 presses against the inside of the annular groove and pushes the annular groove upward, that is, the fixed block 207 is raised, and the mobile rod 205 can also be raised.

[0056] Gear three 402 is a small gear, and gear four 403 is a large gear.

[0057] Specifically, the small gear drives the large gear to rotate, and the large gear rotates slowly, so the angle of the spray gun head 404 can be better adjusted.

[0058] A cross slot is provided on one side of the short rod 304, a stop block 306 is fixedly connected to the outer side of the limiting rod 305, a spring 307 is provided on the outer side of the limiting rod 305, and a clamping block 308 is fixedly connected to one side of the limiting rod 305, and the clamping block 308 corresponds to the cross slot.

[0059] Specifically, when the limit rod 305 is stuck in the interior of the groove 110, it is in the locked state. To cancel the locked state, the staff pulls up the limit rod 305, that is, pulls it out from the interior of the groove 110, and along the horizontal part of the cross groove, the block 308 is pulled out of the outside of the short rod 304. At this time, the block 308 and the limit rod 305 are rotated as a whole, and the block 308 changes from horizontal to vertical. The block 308 is released, because there is elastic contraction near the limit rod 305, that is, when the limit rod 305 is lifted, the spring 307 is compressed The clamping block 308 shrinks, and at this time there is a rebound force, so the clamping block 308 is released. The clamping block 308 needs to be retracted and just fits into the vertical part of the cross groove. At this time, the limit rod 305 is not inserted into the inside of the groove 110, that is, it is not locked. The staff can hold the short rod 304 and rotate it as needed to adjust the overall length to a suitable length. At this time, the clamping block 308 can be lifted and changed from vertical to horizontal, and the clamping block 308 is released. Under the elastic contraction, the clamping block 308 and the fiber rod 305 will return to their original positions, that is, the locking is completed.

[0060] The cross groove is deep in the horizontal direction and shallow in the vertical direction.

[0061] Specifically, the deep groove has a certain limiting effect on the block 308, while the shallow groove fixes the block 308 in an unlocked state to prevent the block 308 from rebounding to the original position before the length adjustment is performed.

[0062] The stop block 306 and the interior of the short rod 304 are slidably connected, and the spring 307 and the inner side of the short rod 304 are fixedly connected.

[0063] Specifically, the stop block 306 is used to restrict the spring 307 to a certain extent. When the limit rod 305 is lifted, the stop block 306 is lifted, and the stop block 306 presses the spring 307, so that the spring 307 has a certain rebound force. The spring 307 and the inner side of the short rod 304 are fixed, which is to fix the spring 307.

[0064] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, internal communication between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the meanings of the above terms in this application can be understood according to specific circumstances.

[0065] The above is a detailed introduction to the powder coating spray gun with adjustable spraying angle and distance provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application; ordinary technicians in this field should understand that: they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. A powder coating spray gun with adjustable spraying angle and distance, comprising a gun body (1), a rotating assembly, a lifting assembly, a locking assembly, and an adjusting assembly, characterized in that: The rotating assembly comprises a vertical plate (102), wherein the vertical plate (102) and the gun body (1) are fixedly connected, a motor (2) is fixedly connected to one side of the vertical plate (102), an output end of the motor (2) is fixedly connected to a rotating shaft (201), a gear (202) is fixedly connected to one side of the rotating shaft (201), a gear (203) is meshingly connected to one side of the gear (202), a circular ring block (111) is fixedly connected to one side of the vertical plate (102), the gear (203) and the circular ring block (111) are connected, two long rods (204) are connected to the top of the gear (203), a moving rod (205) is connected to the inner side of the long rod (204), a fixed block (207) is connected to one side of the moving rod (205), and the fixed block (207) is connected to the adjusting assembly; The lifting assembly comprises a round rod (104), the round rod (104) and the gun body (1) are rotatably connected, one side of the gun body (1) is connected to an outer cover (101), one side of the outer cover (101) is rotatably connected to a cross bar (3), the cross bar (3) is connected to a locking mechanism, one side of the cross bar (3) is fixedly connected to a bevel gear 1 (301), one side of the bevel gear 1 (301) is meshingly connected to a bevel gear 2 (302), and the bevel gear 2 (302) is meshingly connected to the bevel gear 1 (301). ) and the round rod (104) are fixedly connected, a double plate (106) is fixedly connected to one side of the circular ring block (111), a square block (105) is placed inside the double plate (106), the square block (105) and the round rod (104) are connected, the top of the square block (105) is fixedly connected to a limiting plate (107), the top of the limiting plate (107) is fixedly connected to a cylinder (108), and the cylinder (108) and the fixed block (207) are connected; The adjustment component comprises a second motor (4), the second motor (4) and the fixed block (207) are fixedly connected, the output end of the second motor (4) is fixedly connected to a second rotating shaft (401), one side of the second rotating shaft (401) is fixedly connected to a third gear (402), one side of the third gear (402) is meshingly connected to a fourth gear (403), the top of the fourth gear (403) is fixedly connected to a spray gun head (404), one side of the spray gun head (404) is connected to a pipe (103), and the pipe (103) is connected to the gun body (1); The locking assembly comprises a rotating block (303), the rotating block (303) and the cross bar (3) are fixedly connected, a short bar (304) is fixedly connected to one side of the rotating block (303), a limiting rod (305) is arranged inside the short bar (304), and a plurality of grooves (110) are opened on one side of the outer cover (101), and the limiting rod (305) corresponds to the grooves (110).

2. The powder coating spray gun with adjustable spraying angle and distance according to claim 1, characterized in that: The second gear (203) and the circular ring block (111) are rotatably connected, a circular groove is opened in the middle of the second gear (203), the circular rod (104) passes through the circular groove and the circular ring block (111), and the second gear (203) and the long rod (204) are fixedly connected.

3. The powder coating spray gun with adjustable spraying angle and distance according to claim 2, characterized in that: The top outer side of the round rod (104) is provided with a thread, and the round rod (104) and the block (105) are connected by threads.

4. The powder coating spray gun with adjustable spraying angle and distance according to claim 1, characterized in that: The long rod (204) and the moving rod (205) are slidably connected, and the moving rod (205) and the fixed block (207) are fixedly connected. Two long grooves are provided on the inner side of the long rod (204), and two long strips (206) are fixedly connected on the outer side of the moving rod (205), and the long strips (206) correspond to the long grooves. A convex ring (109) is fixedly connected to the top of the cylinder (108), and an annular groove is provided on the inner side of the bottom of the fixed block (207), and the convex ring (109) corresponds to the annular groove.

5. The powder coating spray gun with adjustable spraying angle and distance according to claim 1, characterized in that: The gear three (402) is a small gear, and the gear four (403) is a large gear.

6. The powder coating spray gun with adjustable spraying angle and distance according to claim 1, characterized in that: A cross groove is provided on one side of the short rod (304); a stop block (306) is fixedly connected to the outer side of the limiting rod (305); a spring (307) is provided on the outer side of the limiting rod (305); a clamping block (308) is fixedly connected to one side of the limiting rod (305); and the clamping block (308) corresponds to the cross groove.

7. The powder coating spray gun with adjustable spraying angle and distance according to claim 6, characterized in that: The cross groove has a deep transverse groove and a shallow vertical groove.

8. The powder coating spray gun with adjustable spraying angle and distance according to claim 6, characterized in that: The stop block (306) and the interior of the short rod (304) are slidably connected, and the spring (307) and the inner side of the short rod (304) are fixedly connected.

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