A multi-functional anti-clogging spray gun

Abstract

The present invention discloses a multifunctional anti-blocking spray gun, which relates to the technical field of spray gun equipment. The multifunctional anti-blocking spray gun includes a gun handle mechanism. The gun handle mechanism includes a gun handle. The bottom end of the gun handle is fixedly communicated with a first external connecting pipe of an external air pump. A first control valve for controlling the paint dosage is installed on the upper side edge of the gun handle. A gun body assembly is arranged above the gun handle mechanism, and a gun head assembly is arranged at the front end of the gun body assembly. The gun body assembly includes a wind flow mechanism, a filling mechanism and a joint mechanism. The gun head assembly includes a socket mechanism and a nozzle mechanism. The joint mechanism includes a joint cylinder. A retaining ring is fixedly sleeved on the outer rear end of the joint cylinder. A threaded strip fixedly sleeved on the outer side of the joint cylinder is arranged on the front side of the retaining ring. A dredging component is arranged inside the joint cylinder; in the multifunctional anti-blocking spray gun of the present invention, by leaving the needle inserting component inside the nozzle, there is no need to pull out the needle inserting component for use, avoiding the situation of losing the needle inserting component and improving the use convenience of the spray gun.

Description

Technical Field

[0001] The present invention relates to the technical field of spray gun equipment, and particularly to a multifunctional anti-clogging spray gun. Background Technique

[0002] Spray gun technology is widely used in multiple fields such as painting, cleaning, and agricultural spraying, covering various types such as pneumatic, electric, and manual. With the development of industrial automation and intelligent manufacturing, spray gun technology has been continuously progressing, involving interdisciplinary fields such as materials science, fluid mechanics, mechanical design, and control technology. Currently, significant progress has been made in spray gun technology at home and abroad, especially in high-pressure airless spraying. However, the high-end spray gun market is still monopolized by a few international enterprises, and there are obvious gaps in core technology innovation among domestic enterprises. With the advancement of Industry 4.0 and intelligent manufacturing, spray gun technology is continuously developing towards high efficiency, energy conservation, intelligence, and environmental protection, and the market demand for high-performance spray guns is increasing day by day. Especially in high-end manufacturing industries such as automobile manufacturing, aerospace, and electronic products, higher requirements are put forward for the accuracy, efficiency, and environmental protection performance of spray guns.

[0003] The Chinese patent with the publication number CN208810342U discloses a multifunctional lubricant spray gun to solve the problems that the existing lubricant spray gun has an easily clogged nozzle, a wide spraying range that is easy to splash onto others when in use, and the inability to see in real time how much liquid is left; the multifunctional lubricant spray gun includes a spray cap, a handle, a push switch, a return spring, a pump, an oil storage bottle, a transparent observation window, arc-shaped anti-slip bumps, a rubber plug, a limiting spring, a splash-proof cover structure, a multifunctional spray head structure, a multifunctional storage box structure, a conduit, and a collar. The spray cap is threadedly installed on the upper part of the oil storage bottle; the handle is adhesively connected to the upper right side of the spray cap; the push switch is pivotally connected to the upper left part inside the spray cap; the return spring is adhesively connected to the upper right side of the spray cap; the pump is adhesively connected to the upper middle part of the spray cap; the transparent observation window is longitudinally inlaid on the front right side of the oil storage bottle; the arc-shaped anti-slip bumps are integrally adhesively connected to the left and right sides of the oil storage bottle; the rubber plug is arranged on the left part inside the spray cap; the limiting spring is arranged between the rubber plug and the inside of the spray cap; the splash-proof cover structure is installed on the left end outside the spray cap; the multifunctional spray head structure is installed on the left end of the spray cap; the multifunctional storage box structure is sleeved on the upper left end outside the spray cap through a collar; the conduit is adhesively connected to the lower end inside the spray cap; the multifunctional spray head structure includes a rubber hose, a sealing joint, a nozzle, a slot, a fog adjustment piece, and a buckle. The rubber hose is inserted into the left side inside the sealing joint; the nozzle is sleeved on the left end outside the rubber hose; the slots are opened at the upper and lower ends on the left side of the front surface of the nozzle; the fog adjustment piece is hinge-connected to the rear left side of the nozzle; the buckles are adhesively connected to the upper and lower ends on the front left side of the fog adjustment piece. The setting of the thin needle is beneficial to dredging the nozzle after it is clogged.

[0004] In the above technical solution, the thin needle is inserted into the structure of the multifunctional storage box. When the nozzle is blocked, the thin needle can be taken out to dredge the nozzle. However, this method is very likely to cause the thin needle to fall off and be lost, with a high risk level and inconvenience for actual use. Therefore, there is an urgent need for a multifunctional anti-blocking spray gun to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a multifunctional anti-blocking spray gun to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A multifunctional anti-blocking spray gun includes a gun handle mechanism. The gun handle mechanism includes a gun handle, and the bottom end of the gun handle is fixedly connected and communicated with a first external connecting pipe of an external air pump.

[0007] A first control valve for controlling the coating dosage is installed on the upper side of the gun handle.

[0008] Above the gun handle mechanism, a gun body assembly is provided, and a gun head assembly is provided at the front end of the gun body assembly.

[0009] The gun body assembly includes an air flow mechanism, a filling mechanism, and a joint mechanism.

[0010] The gun head assembly includes a socket mechanism and a nozzle mechanism.

[0011] The joint mechanism includes a joint cylinder. A retaining ring is fixedly sleeved on the outer rear end of the joint cylinder, and a threaded strip fixedly sleeved on the outer side of the joint cylinder is provided on the front side of the retaining ring.

[0012] A dredging component is arranged inside the joint cylinder.

[0013] The socket mechanism is screwed onto the joint mechanism, and the nozzle mechanism is movably arranged on the front side of the socket mechanism.

[0014] The nozzle mechanism includes a nozzle cover. Two symmetrically fixed flanges are fixedly connected to both sides of the front surface of the nozzle cover. A nozzle is fixedly penetrated through the middle of the end face of the nozzle cover. The front end of the nozzle is inwardly converged, and the rear end of the nozzle is fixedly connected and communicated with an outwardly expanding pressure pipe. A connecting cylinder is fixedly connected between the pressure pipe and the nozzle cover. The outer sides of the pressure pipe and the connecting cylinder are attached to the inner side of the joint cylinder. Small columns are fixedly inserted into the inner wall of the rear port of the nozzle cover.

[0015] As a preferred technical solution of the present invention, columns are symmetrically and fixedly connected to both sides of the upper end of the gun handle, and a first air pipe is fixedly connected and communicated with the upper end of the gun handle.

[0016] The air flow mechanism includes a hollow air flow chamber. One side of the lower part of the air flow chamber is fixedly communicated with a second air pipe that docks with the first air pipe, and the other side of the lower part of the air flow chamber is fixedly communicated with a bent third air pipe;

[0017] On both sides of the upper part of the air flow chamber, membrane holes are respectively penetrated. An air-driven membrane is fixedly connected inside the membrane holes. An outer cover fixedly connected to the air flow chamber is sleeved outside each membrane hole, and a support column is fixedly connected corresponding to the lower side of the outer cover;

[0018] An elastic component is radially arranged inside each outer cover. Each elastic component includes a first spring. One end of the first spring is fixedly connected to the outer cover, and the other end of the first spring is fixedly connected to a spherical disc that fits the air-driven membrane.

[0019] A rotating rod is axially movably inserted through the air flow chamber through a bearing. A wind wheel assembly is sleeved on the rotating rod and is inside the air flow chamber. The wind wheel assembly is adapted to the air flow chamber. The wind wheel assembly includes a sleeve fixedly sleeved on the rotating rod, and wheel plates are fixedly connected to the outer side of the sleeve at equal intervals and evenly;

[0020] A second control valve for controlling the air flow rate is fixedly installed at the rear side of the air flow chamber.

[0021] The filling mechanism includes a solid connecting plate. The rear end of the connecting plate penetrates and is fixedly connected to the front wall of the air flow chamber. The front end of the connecting plate is fixedly connected to a through pipe. The front end of the through pipe is fixedly communicated with a connecting pipe. A second external connecting pipe for connecting external paint is fixedly communicated with the upper side of the through pipe;

[0022] A pressing handle is movably installed on the outside of the connecting plate through a torsion spring. The output end of the first control valve penetrates the gun handle and supports the bottom of the pressing handle;

[0023] The front port of the connecting pipe expands outward in a ring shape and is fixedly communicated with a joint cylinder. An annular pipe is fixedly sleeved on the outside of the front port of the connecting pipe. L-shaped air outlet pipes are fixedly communicated with the inside of the annular pipe at equal intervals and evenly. The air outlet pipes penetrate the front port of the connecting pipe. The port of the air outlet pipe away from the annular pipe faces forward. A fourth air pipe is fixedly communicated with the outside of the annular pipe. The port of the fourth air pipe away from the annular pipe penetrates and is inserted with a sleeve that fixedly covers the third air pipe.

[0024] The dredging component includes a first needle rod. A stirring fan is fixedly sleeved on the first needle rod and is inside the pressing pipe. An inserting needle component adapted to the inner receiving end of the nozzle is arranged at the front end of the first needle rod. The rear end of the first needle rod is movably sleeved through a bearing with a bracket fixedly connected to the joint cylinder;

[0025] The inserting needle component includes a second needle rod fixedly connected to the first needle rod. A spiral blade is fixedly wound around the outside of the second needle rod;

[0026] The front end of the rotating rod penetrates through the connecting plate and is fixedly connected to the first needle rod.

[0027] As a preferred technical solution of the present invention, the socket mechanism includes a socket cylinder, the inner side wall of the socket cylinder is provided with an internal thread adapted to the screwed thread strip, and the outer side of the rear end of the socket cylinder is fixedly sleeved with a grip ring that fits the retaining ring;

[0028] The front end of the socket cylinder is adapted to be inserted with a nozzle cap;

[0029] The outer side of the front end face of the grip ring is fixedly connected with an annular strip ring;

[0030] The upper side of the front end of the socket cylinder is provided with a first chute parallel to the axis, and the rear end of the first chute extends to form a second chute that winds clockwise around the socket cylinder;

[0031] The small column is adapted to be inserted into the first chute and the second chute;

[0032] The outer side of the socket cylinder is wound with a second spring, and the rear end of the second spring fits the grip ring.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] In the multifunctional anti-blocking spray gun of the present invention, through the design of the air flow path that the spray gun originally needs to convey, the connection of the rotating rod and the first needle rod drives the dredging component to rotate, improving the energy saving of the spray gun.

[0035] In the multifunctional anti-blocking spray gun of the present invention, when the spray gun is not working, both the wind wheel component and the dredging component remain stable, reducing involuntary rotation and the resulting wear, improving the working life of the spray gun and the safety of using the spray gun.

[0036] In the multifunctional anti-blocking spray gun of the present invention, by leaving the needle inserting component inside the nozzle, there is no need to store it separately, and there is no need to pull out the needle inserting component for use, thus avoiding the situation of losing the needle inserting component and improving the convenience of using the spray gun.

[0037] In the multifunctional anti-blocking spray gun of the present invention, when the nozzle mechanism is gradually moved towards the socket mechanism, the needle inserting component will also gradually insert from the inside to the outside into the inwardly retracted end of the nozzle, thereby effectively dredging the gun head component and improving the anti-blocking property of the spray gun.

[0038] In the multifunctional anti-blocking spray gun of the present invention, when the nozzle mechanism moves towards the socket mechanism, it rotates clockwise, so that through the spiral arrangement of the spiral blades, the dried waste inside the nozzle is sent out for cleaning together, improving the self-cleaning property of the spray gun.

[0039] In the multi-functional anti-blocking spray gun of the present invention, air flow is introduced into the gun head assembly through the gun handle. The air flow drives the wind wheel assembly to rotate, and then drives the dredging assembly to continuously rotate inside the nozzle and the pressure pipe, so as to timely and effectively stir the paint to be sprayed inside the nozzle and the pressure pipe, avoid its condensation, improve the uniformity of the sprayed paint, and improve the smoothness of the spray gun operation.

[0040] In the multi-functional anti-blocking spray gun of the present invention, during the use of the spray gun, the pin assembly retracts into the nozzle, so as to disperse and reduce the inner diameter of the nozzle, achieving a more efficient atomization effect on the paint and improving the spraying uniformity of the spray gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a front view of the structure of the present invention;

[0042] Figure 2 It is a rear view of the structure of the present invention;

[0043] Figure 3 It is a schematic diagram of the gun handle mechanism of the present invention;

[0044] Figure 4 It is a schematic diagram of the air flow mechanism of the present invention;

[0045] Figure 5 It is a schematic diagram of the outer cover of the present invention;

[0046] Figure 6 It is a schematic diagram of the air flow chamber of the present invention;

[0047] Figure 7 It is a schematic diagram of the filling mechanism of the present invention;

[0048] Figure 8 It is a schematic diagram of the joint mechanism of the present invention;

[0049] Figure 9 It is a schematic diagram of the dredging assembly of the present invention;

[0050] Figure 10 It is a schematic diagram of the gun head assembly of the present invention;

[0051] Figure 11 It is an internal schematic diagram of the gun head assembly in State 1 of the present invention;

[0052] Figure 12 It is an internal schematic diagram of the gun head assembly in State 2 of the present invention;

[0053] Figure 13 It is a schematic diagram of the socket mechanism of the present invention;

[0054] Figure 14 It is a schematic diagram of the first chute of the present invention;

[0055] Figure 15 Schematic diagram of the nozzle mechanism in the present invention;

[0056] Figure 16 For the present invention Figure 15 Enlarged schematic diagram at position A.

[0057] In the figure: 1. Gun handle mechanism; 101. Gun handle; 102. First external connecting pipe; 103. Support pillar; 104. First air pipe; 105. First control valve; 2. Air flow mechanism; 201. Air flow chamber; 202. Second air pipe; 203. Third air pipe; 204. Membrane holes; 205. Pneumatic membrane; 206. Outer cover; 207. First spring; 208. Ball plate; 209. Rotating rod; 210. Bush; 211. Wheel plate; 212. Second control valve; 3. Filling mechanism; 301. Connecting plate; 302. Through pipe; 303. Connecting pipe; 304. Second external connecting pipe; 305. Pressing handle; 306. Ring pipe; 307. Air outlet pipe; 308. Fourth air pipe; 309. Sleeve cover; 4. Connector mechanism; 401. Connector cylinder; 402. Retaining ring; 403. Threaded bar; 404. First needle rod; 405. Stirring fan; 406. Second needle rod; 407. Spiral blade; 408. Bracket; 5. Socket mechanism; 501. Socket cylinder; 502. Internal thread; 503. Holding ring; 504. Strip ring; 505. First sliding groove; 506. Second sliding groove; 507. Second spring; 6. Nozzle mechanism; 601. Nozzle cover; 602. Flap; 603. Nozzle; 604. Pressing pipe; 605. Connecting cylinder; 606. Small column. Specific implementation mode

[0058] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0059] Embodiment: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 , Figure 15 , Figure 16 , a multifunctional anti-blocking spray gun, including a gun handle mechanism 1, the gun handle mechanism 1 includes a gun handle 101, and the bottom end of the gun handle 101 is fixedly connected and communicated with a first external connecting pipe 102 of an external air pump;

[0060] A first control valve 105 for controlling the amount of paint used is installed on the upper side of the pistol grip 101;

[0061] Above the pistol grip mechanism 1, a gun body assembly is provided, and a gun head assembly is provided at the front end of the gun body assembly;

[0062] The gun body assembly includes an air flow mechanism 2, a filling mechanism 3, and a joint mechanism 4;

[0063] The gun head assembly includes a socket mechanism 5 and a nozzle mechanism 6;

[0064] The joint mechanism 4 includes a joint cylinder 401. A retaining ring 402 is fixedly sleeved on the outer rear end of the joint cylinder 401, and a threaded strip 403 fixedly sleeved on the outer side of the joint cylinder 401 is provided on the front side of the retaining ring 402;

[0065] A dredging component is provided inside the joint cylinder 401;

[0066] The socket mechanism 5 is screwed onto the joint mechanism 4, and the nozzle mechanism 6 is movably provided on the front side of the socket mechanism 5;

[0067] The nozzle mechanism 6 includes a nozzle cover 601. On both sides of the front surface of the nozzle cover 601, retaining pieces 602 are symmetrically and fixedly connected. In the middle of the end surface of the nozzle cover 601, a nozzle 603 is fixedly penetrated. The front end of the nozzle 603 is inwardly retracted, and the rear end of the nozzle 603 is fixedly communicated with an outwardly expanding pressure pipe 604. A connecting cylinder 605 is fixedly connected between the pressure pipe 604 and the nozzle cover 601. The outer sides of the pressure pipe 604 and the connecting cylinder 605 are in contact with the inner side of the joint cylinder 401. A small column 606 is fixedly inserted on the inner wall of the rear port of the nozzle cover 601.

[0068] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 9 , Figure 11 , Figure 12 , on both sides of the upper end of the pistol grip 101, struts 103 are symmetrically and fixedly connected respectively, and a first air pipe 104 is fixedly communicated with the upper end of the pistol grip 101.

[0069] The air flow mechanism 2 includes a hollow air flow chamber 201. On one side of the lower part of the air flow chamber 201, a second air pipe 202 connected to the first air pipe 104 is fixedly communicated, and on the other side of the lower part of the air flow chamber 201, a bent third air pipe 203 is fixedly communicated;

[0070] On both upper sides of the air flow bin 201, membrane holes 204 are respectively penetrated and provided. An air-operated membrane 205 is fixedly connected inside the membrane holes 204. An outer cover 206 fixedly connected to the air flow bin 201 is sleeved outside each membrane hole 204. A support column 103 is fixedly connected corresponding to the lower side of the outer cover 206;

[0071] An elastic component is radially arranged inside each outer cover 206. Each elastic component includes a first spring 207. One end of the first spring 207 is fixedly connected to the outer cover 206, and the other end of the first spring 207 is fixedly connected to a ball disc 208 that fits the air-operated membrane 205.

[0072] A rotating rod 209 is axially movably inserted through the air flow bin 201 by a bearing. A wind wheel assembly is sleeved on the rotating rod 209 and is inside the air flow bin 201. The wind wheel assembly is adapted to the air flow bin 201. The wind wheel assembly includes a sleeve 210 fixedly sleeved on the rotating rod 209, and evenly spaced and uniformly fixedly connected wheel plates 211 are arranged on the outer side of the sleeve 210;

[0073] A second control valve 212 for controlling the air flow rate is fixedly installed on the rear side of the air flow bin 201. The second control valve 212 controls the air flow rate by controlling the rotation speed of the wind wheel assembly.

[0074] The filling mechanism 3 includes a solid connecting plate 301. The rear end of the connecting plate 301 penetrates and is fixedly connected to the front wall of the air flow bin 201. The front end of the connecting plate 301 is fixedly connected to a through pipe 302. The front end of the through pipe 302 is fixedly communicated with a connecting pipe 303. A second external connecting pipe 304 for connecting external paint is fixedly communicated with the upper side of the through pipe 302;

[0075] A pressing handle 305 is movably installed outside the connecting plate 301 through a torsion spring. The output end of the first control valve 105 penetrates the gun handle 101 and supports the bottom of the pressing handle 305;

[0076] The front port of the connecting pipe 303 expands outward in a ring shape and is fixedly communicated with a joint cylinder 401. An annular pipe 306 is fixedly sleeved outside the front port of the connecting pipe 303. Evenly spaced and uniformly fixedly communicated L-shaped air outlet pipes 307 are arranged on the inner side of the annular pipe 306. The air outlet pipes 307 penetrate the front port of the connecting pipe 303. The ports of the air outlet pipes 307 far from the annular pipe 306 face forward. A fourth air pipe 308 is fixedly communicated with the outer side of the annular pipe 306. The port of the fourth air pipe 308 far from the annular pipe 306 is penetrated and inserted with a sleeve cover 309 fixedly sleeved on the third air pipe 203.

[0077] The dredging component includes a first needle rod 404. A stirring fan 405 is fixedly sleeved on the first needle rod 404 and is inside the pressure pipe 604. The front end of the first needle rod 404 is provided with a needle inserting component adapted to the inner receiving end of the spray head 603. Initially, the needle inserting component is not inserted into the inner receiving end of the spray head 603. The rear end of the first needle rod 404 is movably sleeved through a bearing with a bracket 408 fixedly connected to the joint cylinder 401;

[0078] The pin insertion assembly includes a second pin rod 406 fixedly connected to the first pin rod 404, and a spiral blade 407 is fixedly wound around the outer side of the second pin rod 406;

[0079] The front end of the rotating rod 209 penetrates through the connecting plate 301 and is fixedly connected to the first pin rod 404.

[0080] Please refer to Figure 11 、 Figure 12 、 Figure 13 、 Figure 14 For the socket mechanism 5, it includes a socket cylinder 501. An internal thread 502 adapted to the threaded strip 403 is provided on the inner side wall of the socket cylinder 501. A grip ring 503 fittingly sleeved on the outer side of the rear end of the socket cylinder 501 is fixedly sleeved;

[0081] The front end of the socket cylinder 501 is adaptively inserted with a nozzle cap 601;

[0082] A ring-shaped strip ring 504 is fixedly connected to the outer side of the front end face of the grip ring 503;

[0083] A first chute 505 parallel to the axis is provided on the upper side of the front end of the socket cylinder 501, and a second chute 506 wound around the socket cylinder 501 clockwise is extended at the rear end of the first chute 505;

[0084] The small post 606 is adaptively inserted into the first chute 505 and the second chute 506;

[0085] A second spring 507 is wound around the outer side of the socket cylinder 501, and the rear end of the second spring 507 abuts against the grip ring 503.

[0086] The working principle of the present invention is as follows:

[0087] The second outer connecting pipe 304 is externally connected to the coating material, and by pressing the pressing handle 305, the coating material and air are sprayed out from the gun head assembly together;

[0088] When using the spray gun, slide the small post 606 of the nozzle mechanism 6 to the front end position of the first chute 505. At this time, the pin insertion component is not inserted into the inner receiving end of the nozzle 603, maintaining an unobstructed state. Press the handle 305 to press the paint and air into the nozzle 603 through the pressure tube 604, and spray out from the inner receiving end of the nozzle 603. Through the openings of the second air tube 202 and the third air tube 203 on the air flow chamber 201, the air input by the external air pump connected to the first external connecting tube 102 is conveyed through the first air tube 104. The air inside the air flow chamber 201 is input through the second air tube 202 and output through the third air tube 203. Through the adaptation of the air flow chamber 201 and the wind wheel assembly, the wind wheel assembly is driven to rotate counterclockwise when the air flows through the air flow chamber 201. Through the design of the air flow path that the spray gun originally needs to convey, the connection between the rotating rod 209 and the first needle rod 404 drives the dredging component to rotate, improving the energy efficiency of the spray gun during use.

[0089] The outer cover 206 is sealed and maintained at a high pressure state. When the spray gun is not working, the air pressure inside the outer cover 206 is greater than the air pressure inside the air flow chamber 201, and under the support of the elastic component, the pneumatic membrane 205 bulges towards the inside of the air flow chamber 201, thereby hindering the rotation of the wheel plate 211. Therefore, in the state where the spray gun is not working, both the wind wheel assembly and the dredging component remain stable, reducing involuntary rotation and the resulting wear, improving the working life of the spray gun during use, and improving the safety of the spray gun during use.

[0090] By leaving the pin insertion component inside the nozzle 603, there is no need to store it separately, and there is no need to pull out the pin insertion component for use. Therefore, the situation of losing the pin insertion component is also avoided, improving the convenience of using the spray gun.

[0091] When the gun head component is blocked, first push the nozzle mechanism 6 backward to slide the small post 606 from the front end of the first chute 505 to the rear end, and then rotate the nozzle mechanism 6 along the second chute 506, gradually moving the nozzle mechanism 6 towards the socket mechanism 5. At this time, the pin insertion component will also gradually insert into the inner receiving end of the nozzle 603 from the inside out, effectively dredging the gun head component and improving the anti-blocking property of the spray gun.

[0092] During the process of moving the nozzle mechanism 6 towards the socket mechanism 5, the small post 606 of the nozzle mechanism 6 needs to move along the second chute 506. Therefore, the nozzle mechanism 6 rotates clockwise when moving towards the socket mechanism 5, and through the spiral setting of the spiral blade 407, the dried waste inside the nozzle 603 is sent out for cleaning together, improving the self-cleaning property of the spray gun.

[0093] During the use of the spray gun, air flow is introduced into the gun head assembly through the gun handle 101. The air flow drives the wind wheel assembly to rotate, which in turn drives the dredging assembly to continuously rotate inside the nozzle 603 and the pressure pipe 604, thereby timely and effectively stirring the paint to be sprayed inside the nozzle 603 and the pressure pipe 604, avoiding its condensation, improving the uniformity of the sprayed paint, and enhancing the smoothness of the spray gun operation.

[0094] During the use of the spray gun, the needle insertion assembly retracts into the nozzle 603, thereby dispersing and reducing the inner diameter of the nozzle 603, achieving a more efficient atomization effect on the paint, and improving the spraying uniformity of the spray gun.

[0095] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional anti-clogging spray gun, comprising a gun handle mechanism (1), the gun handle mechanism (1) comprising a gun handle (101), the bottom end of the gun handle (101) being fixedly connected to a first external pipe (102) for an external air pump; A first control valve (105) for controlling the amount of paint is installed on the upper side of the gun handle (101); A gun body assembly is arranged above the gun handle mechanism (1), and a gun head assembly is arranged at the front end of the gun body assembly; Features: The gun body assembly comprises an air flow mechanism (2), a filling mechanism (3) and a joint mechanism (4); The gun head assembly comprises a seat mechanism (5) and a nozzle mechanism (6); The joint mechanism (4) comprises a joint tube (401), a retaining ring (402) is fixedly sleeved on the outer rear end of the joint tube (401), and a threaded strip (403) is fixedly sleeved on the outer side of the joint tube (401) on the front side of the retaining ring (402); A dredging component is arranged inside the joint tube (401); The socket mechanism (5) is screwed onto the joint mechanism (4), and a nozzle mechanism (6) is movably arranged on the front side of the socket mechanism (5); The nozzle mechanism (6) comprises a nozzle cover (601), baffles (602) are symmetrically fixedly connected to both sides of the front surface of the nozzle cover (601), a nozzle (603) is fixedly connected through the middle of the end surface of the nozzle cover (601), the front end of the nozzle (603) is retracted, and the rear end of the nozzle (603) is fixedly connected to an outward-expanding pressure tube (604), a connecting tube (605) is fixedly connected between the pressure tube (604) and the nozzle cover (601), the outer sides of the pressure tube (604) and the connecting tube (605) are in contact with the inner side of the connecting tube (401), and a small column (606) is fixedly inserted into the inner wall of the rear port of the nozzle cover (601).

2. A multifunctional anti-clogging spray gun according to claim 1, characterized in that: Support pillars (103) are symmetrically fixedly connected to both sides of the upper end of the gun handle (101), and the upper end of the gun handle (101) is fixedly connected to a first air pipe (104).

3. A multifunctional anti-clogging spray gun according to claim 2, characterized in that: The air flow mechanism (2) comprises a hollow air flow chamber (201), one side of the lower portion of the air flow chamber (201) being fixedly connected to a second air pipe (202) docking with the first air pipe (104), and the other side of the lower portion of the air flow chamber (201) being fixedly connected to a bent third air pipe (203); The upper sides of the wind flow bin (201) are respectively penetrated by membrane holes (204), the inside of the membrane holes (204) is fixedly connected to a pneumatic membrane (205), and the outer side of each membrane hole (204) is covered with an outer cover (206) fixedly connected to the wind flow bin (201), and the lower side of the outer cover (206) corresponds to the fixed support (103); An elastic component is radially arranged inside each outer cover (206), and each elastic component comprises a first spring (207), one end of the first spring (207) is fixedly connected to the outer cover (206), and the other end of the first spring (207) is fixedly connected to a ball disk (208) that fits the pneumatic membrane (205).

4. A multifunctional anti-clogging spray gun according to claim 3, characterized in that: The wind flow chamber (201) is axially movable with a rotating rod (209) inserted therein via a bearing, the rotating rod (209) being sleeved with a wind wheel assembly located inside the wind flow chamber (201), the wind wheel assembly being adapted to the wind flow chamber (201), the wind wheel assembly comprising a shaft sleeve (210) fixedly sleeved with the rotating rod (209), the outer side of the shaft sleeve (210) being evenly and equidistantly fixedly connected with a wheel plate (211); A second control valve (212) for controlling the air flow rate is fixedly installed on the rear side of the air flow compartment (201).

5. A multifunctional anti-clogging spray gun according to claim 4, characterized in that: The filling mechanism (3) comprises a solid connecting plate (301), the rear end of the connecting plate (301) penetrates through the front wall of the fixed airflow bin (201), the front end of the connecting plate (301) is fixedly connected to a through pipe (302), the front end of the through pipe (302) is fixedly connected to a connecting pipe (303), and the upper side of the through pipe (302) is fixedly connected to a second external pipe (304) for externally connecting paint; A pressure handle (305) is movably mounted on the outer side of the connecting plate (301) via a torsion spring, and the output end of the first control valve (105) passes through the gun handle (101) and supports the bottom of the pressure handle (305); The front end of the connecting tube (303) is expanded outwardly in a ring shape and is fixedly connected to the joint tube (401); a ring tube (306) is fixedly sleeved on the outside of the front end of the connecting tube (303); an L-shaped air outlet pipe (307) is fixedly connected to the inside of the ring tube (306) at equal intervals; the air outlet pipe (307) passes through the front end of the connecting tube (303); the end of the air outlet pipe (307) away from the ring tube (306) faces the front side; the outside of the ring tube (306) is fixedly connected to a fourth air pipe (308); the end of the fourth air pipe (308) away from the ring tube (306) passes through a cover (309) fixedly connected to the third air pipe (203).

6. A multifunctional anti-clogging spray gun according to claim 5, characterized in that: The dredging assembly comprises a first needle rod (404), the first needle rod (404) being fixedly sleeved with a stirring fan (405) in a pressure tube (604), a pin assembly adapted to the inner retracted end of the spray head (603) being provided at the front end of the first needle rod (404), and a bracket (408) fixedly connected to the joint tube (401) being movably sleeved at the rear end of the first needle rod (404) via a bearing; The insertion needle assembly comprises a second needle rod (406) fixedly connected to the first needle rod (404), and a spiral leaf (407) is fixedly wound around the outer side of the second needle rod (406); The front end of the rotating rod (209) passes through the connecting plate (301) and is fixedly connected to the first needle rod (404).

7. The multifunctional anti-clogging spray gun according to claim 1, characterized in that: The receiving mechanism (5) comprises a receiving tube (501), an inner side wall of which is provided with an internal thread (502) adapted to be screwed onto the thread strip (403), and a grip ring (503) which fits the retaining ring (402) is fixedly sleeved on the outer side of the rear end of the receiving tube (501); The front end of the socket tube (501) is adapted to be plugged into the nozzle cover (601); An annular strip ring (504) is fixedly connected to the outer side of the front end surface of the grip ring (503); A first sliding groove (505) parallel to the axial direction is formed on the upper side of the front end of the connecting seat tube (501), and a second sliding groove (506) extending clockwise around the connecting seat tube (501) is formed at the rear end of the first sliding groove (505); The small column (606) is adapted to be inserted into the first slide groove (505) and the second slide groove (506); A second spring (507) is wound around the outer side of the receiving tube (501), and the rear end of the second spring (507) is in contact with the grip ring (503).

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