Multifunctional anti-blocking spray gun

Abstract

The invention discloses a multifunctional anti-blocking spray gun, and relates to the technical field of spray gun equipment, the multifunctional anti-blocking spray gun comprises a gun handle mechanism, the gun handle mechanism comprises a gun handle, the bottom end of the gun handle is fixedly communicated with a first external connection pipe externally connected with an air pump, and a first control valve used for controlling the coating dosage is installed on the side of the upper portion of the gun handle; a gun body assembly is arranged above the gun handle mechanism, a gun head assembly is arranged at the front end of the gun body assembly, the gun body assembly comprises an air flow mechanism, a filling mechanism and a connector mechanism, the gun head assembly comprises a connecting seat mechanism and a spray head mechanism, the connector mechanism comprises a connector barrel, and the rear end of the outer side of the connector barrel is fixedly sleeved with a baffle ring; the front side of the baffle ring is provided with a threaded strip fixedly connected to the outer side of the connector barrel in a sleeving mode, and a dredging assembly is arranged in the connector barrel. According to the multifunctional anti-blocking spray gun, the contact pin assembly is reserved in the spray head, the contact pin assembly does not need to be pulled out for use, the situation that the contact pin assembly is lost is avoided, and the use convenience of the spray gun is improved.

Description

Technical Field

[0001] The invention relates to the technical field of spray gun equipment, in particular to a multifunctional anti-clogging spray gun. Background Art

[0002] Spray gun technology is widely used in many fields such as painting, cleaning, agricultural spraying, etc., covering various types such as pneumatic, electric, and manual. With the development of industrial automation and intelligent manufacturing, spray gun technology continues to advance, involving multidisciplinary cross-fields such as materials science, fluid mechanics, mechanical design, and control technology. At present, spray gun technology at home and abroad has made significant progress, especially in high-pressure airless spraying. However, the high-end spray gun market is still monopolized by a few international companies, and domestic companies have a clear gap in core technology innovation. With the advancement of Industry 4.0 and intelligent manufacturing, spray gun technology continues to develop in the direction of high efficiency, energy saving, intelligence, and environmental protection. The market demand for high-performance spray guns is increasing, especially in high-end manufacturing industries such as automobile manufacturing, aerospace, and electronic products, which puts higher requirements on the accuracy, efficiency, and environmental protection performance of spray guns.

[0003] The Chinese patent with announcement number CN208810342U discloses a multifunctional lubricant spray gun to solve the problems of existing lubricant spray guns, such as easy blockage of the spray head, easy splashing on others when the spray range is wide, and inability to see how much liquid is left in real time; the multifunctional lubricant spray gun includes a spray cover, a handle, a push switch, a return spring, an air pump, an oil storage bottle, a transparent observation window, an arc-shaped anti-skid protrusion, a rubber plug, a limiting spring, a splash cover structure, a multifunctional spray head structure, a multifunctional storage box structure, a conduit and a collar, the spray cover is threadedly installed on the upper part of the oil storage bottle; the handle is glued to the upper right side of the spray cover; the push switch is axially connected to the upper left part of the inner side of the spray cover; the return spring is glued to the upper right side of the spray cover; the air pump is glued to the middle and upper part of the spray cover; the transparent observation window is longitudinally inlaid in the front right side of the oil storage bottle; the arc-shaped anti-skid protrusion is integrally glued Connected to the left and right sides of the oil storage bottle; the rubber plug is arranged on the inner left part of the spray cover; the limiting spring is arranged on the inner side of the rubber plug and the spray cover; the splash cover structure is installed on the outer left end of the spray cover; the multifunctional spray head structure is installed on the left end of the spray cover; the multifunctional storage box structure is connected to the upper left end of the outer side of the spray cover through a ring; the conduit is glued to the lower end of the inner side of the spray cover; the multifunctional spray head structure includes a rubber hose, a sealing joint, a spray head, a slot, a mist adjustment sheet and a buckle, the rubber hose is plugged into the inner left side of the sealing joint; the spray head is sleeved on the outer left end of the rubber hose; the slot is opened at the upper and lower ends of the left side of the front surface of the spray head; the mist adjustment sheet hinge is connected to the left rear part of the spray head; the buckle is glued to the upper and lower ends of the left front part of the mist adjustment sheet, and the setting of the fine needle is conducive to unblocking the spray head after it is blocked.

[0004] The above technical solution inserts the fine needle into the multifunctional storage box structure. When the nozzle is blocked, the fine needle can be taken out to clear the nozzle. However, this method can easily cause the fine needle to fall off and be lost, which has a high risk and is not convenient for practical use. Therefore, a multifunctional anti-clogging spray gun is urgently needed to solve the above-mentioned problems. Summary of the invention

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

[0006] To achieve the above object, the present invention provides the following technical solution: a multifunctional anti-clogging spray gun, comprising a gun handle mechanism, wherein the gun handle mechanism comprises a gun handle, and the bottom end of the gun handle is fixedly connected to a first external pipe connected to an external air pump; A first control valve for controlling the amount of paint is installed on the upper side 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 seat mechanism and a nozzle mechanism; The joint mechanism comprises a joint tube, a retaining ring is fixedly sleeved on the rear end of the outer side of the joint tube, and a threaded strip fixedly sleeved on the outer side of the joint tube is arranged on the front side of the retaining ring; A dredging component is arranged inside the joint tube; The seat mechanism is screwed onto the joint mechanism, and a nozzle mechanism is movably arranged on the front side of the seat mechanism; The nozzle mechanism includes a nozzle cover, and baffles are symmetrically fixedly connected to the two sides of the front surface of the nozzle cover, and a nozzle is fixedly connected through the middle of the end surface of the nozzle cover. The front end of the nozzle is retracted, and the rear end of the nozzle is fixedly connected to an outward-expanding pressure tube. A connecting tube is fixedly connected between the pressure tube and the nozzle cover, and the outer sides of the pressure tube and the connecting tube fit the inner side of the connecting tube. A small column is fixedly embedded on the inner wall of the rear port of the nozzle cover.

[0007] As a preferred technical solution of the present invention, pillars are symmetrically fixedly connected to both sides of the upper end of the gun handle, and the upper end of the gun handle is fixedly connected to a first air pipe.

[0008] The wind flow mechanism comprises a hollow wind flow chamber, one side of the lower part of the wind flow chamber is fixedly connected with a second air pipe connected to the first air pipe, and the other side of the lower part of the wind flow chamber is fixedly connected with a bent third air pipe; The upper sides of the wind flow bin are respectively penetrated with membrane holes, the inside of the membrane holes is fixedly connected with a pneumatic membrane, the outer side of each membrane hole is covered with an outer cover fixedly connected to the wind flow bin, and the lower side of the outer cover corresponds to the fixed support; An elastic component is radially arranged inside each outer cover, and 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 ball disk that fits the pneumatic membrane.

[0009] The wind flow chamber is axially movable through the bearing and is interspersed with a rotating rod, the rotating rod sleeve is provided with a wind wheel assembly inside the wind flow chamber, the wind wheel assembly and the wind flow chamber are adapted, the wind wheel assembly includes a shaft sleeve fixedly sleeved with the rotating rod, and the outer side of the shaft sleeve is evenly and evenly fixedly connected with a wheel plate; A second control valve for controlling the air flow rate is fixedly installed on the rear side of the air flow compartment.

[0010] The filling mechanism comprises a solid connecting plate, the rear end of the connecting plate penetrates through the front wall of the fixed airflow bin, the front end of the connecting plate is fixedly connected with a through pipe, the front end of the through pipe is fixedly connected with a connecting pipe, and the upper side of the through pipe is fixedly connected with a second external pipe for externally connecting paint; A pressure handle is movably installed on the outer side of the connecting plate through a torsion spring, and the output end of the first control valve penetrates the gun handle and supports the bottom of the pressure handle; The front port of the connecting tube is expanded outward in a ring shape and is fixedly connected to a connecting tube. A ring tube is fixedly sleeved on the outside of the front port of the connecting tube. An L-shaped air outlet pipe is fixedly connected to the inside of the ring tube at equal intervals. The air outlet pipe passes through the front port of the connecting tube. The end of the air outlet pipe away from the ring tube faces the front side. The outside of the ring tube is fixedly connected to a fourth air pipe. The end of the fourth air pipe away from the ring tube passes through a cover fixedly connected to the third air pipe.

[0011] The dredging assembly comprises a first needle rod, the first needle rod is fixedly sleeved with a stirring fan in a pressure tube, the front end of the first needle rod is provided with a pin assembly adapted to the inner retracted end of the nozzle, and the rear end of the first needle rod is movably sleeved with a bracket fixedly connected to the joint tube through a bearing; The pin assembly comprises a second needle rod fixedly connected to the first needle rod, and a spiral leaf is fixedly wound around the outer side of the second needle rod; The front end of the rotating rod passes through the connecting plate and is fixedly connected to the first needle rod.

[0012] As a preferred technical solution of the present invention, the receiving mechanism comprises a receiving tube, the inner side wall of which is provided with an internal thread adapted to be screwed on the threaded strip, and a grip ring fitted with a retaining ring is fixedly sleeved on the outer side of the rear end of the receiving tube; The front end of the socket tube is adapted to be plugged into the nozzle cover; An annular strip ring is fixedly connected to the outer side of the front end surface of the grip ring; A first sliding groove parallel to the axial direction is formed on the upper side of the front end of the receiving seat tube, and a second sliding groove extending from the rear end of the first sliding groove and surrounding the receiving seat tube in a clockwise direction is formed; The small column is adapted to be inserted into the first slide groove and the second slide groove; A second spring is wound around the outer side of the receiving tube, and the rear end of the second spring is in contact with the grip ring.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The multifunctional anti-clogging spray gun of the present invention improves the energy saving of the spray gun by designing the flow passage of the air that originally needs to be transported by the spray gun and driving the unblocking component to rotate through the connection between the rotating rod and the first needle rod.

[0014] The multifunctional anti-clogging spray gun of the present invention keeps the wind wheel assembly and the dredging assembly stable when the spray gun is not working, thereby reducing involuntary rotation and the wear caused thereby, increasing the service life of the spray gun and improving the safety of the spray gun.

[0015] The multifunctional anti-clogging spray gun of the present invention retains the pin assembly inside the spray head, which eliminates the need for additional storage and the need to pull out the pin assembly for use, thereby avoiding the situation of losing the pin assembly and improving the convenience of using the spray gun.

[0016] The multifunctional anti-clogging spray gun of the present invention gradually moves the nozzle mechanism toward the receiving seat mechanism, and the pin assembly is gradually inserted into the inner end of the nozzle from the inside to the outside, thereby effectively unblocking the gun head assembly and improving the anti-clogging performance of the spray gun.

[0017] The multifunctional anti-clogging spray gun of the present invention has a spray head mechanism that rotates clockwise when moving toward the receiving seat mechanism, so that the dried waste in the spray head is sent out and cleaned through the spiral arrangement of the spiral blades, thereby improving the self-cleaning property of the spray gun.

[0018] The multifunctional anti-clogging spray gun of the present invention injects airflow into the gun head assembly through the gun handle, and the airflow drives the wind wheel assembly to rotate, thereby driving the dredging assembly to continuously rotate inside the nozzle and the pressure tube, thereby timely and effectively stirring the paint to be sprayed inside the nozzle and the pressure tube to avoid its condensation, thereby improving the uniformity of the sprayed paint and improving the smoothness of the spray gun operation.

[0019] The multifunctional anti-clogging spray gun of the present invention, when the spray gun is in use, has the pin assembly retracted in the spray head, thereby dispersing and reducing the internal aperture of the spray head, achieving a more efficient atomization effect on the paint and improving the spraying uniformity of the spray gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front schematic diagram of the structure of the present invention; Figure 2It is a schematic diagram of the back side of the structure of the present invention; Figure 3 is a schematic diagram of the gun handle mechanism of the present invention; Figure 4 is a schematic diagram of the wind flow mechanism in the present invention; Figure 5 is a schematic diagram of the outer cover in the present invention; Figure 6 It is a schematic diagram of the wind flow chamber in the present invention; Figure 7 It is a schematic diagram of the filling mechanism in the present invention; Figure 8 is a schematic diagram of the joint mechanism in the present invention; Fig. 9 is a schematic diagram of the dredging component in the present invention; Fig.10 is a schematic diagram of a gun head assembly in the present invention; Fig.11 This is an internal schematic diagram of the gun head assembly in state 1 of the present invention; Fig.12 This is an internal schematic diagram of the gun head assembly in state 2 of the present invention; Fig.13 It is a schematic diagram of the seat receiving mechanism in the present invention; Fig.14 is a schematic diagram of the first chute in the present invention; Fig.15 is a schematic diagram of the nozzle mechanism of the present invention; Fig.16 For the present invention Fig.15 An enlarged schematic diagram of point A.

[0021] In the figure: 1. gun handle mechanism; 101. gun handle; 102. first external pipe; 103. support; 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 hole; 205. pneumatic membrane; 206. outer cover; 207. first spring; 208. ball plate; 209. rotating rod; 210. shaft sleeve; 211. wheel plate; 212. second control valve; 3. filling mechanism; 301. connecting plate; 302. through pipe; 303. connecting pipe; 304. second external pipe; 305. pressing handle; 306. ring pipe; 307, air outlet pipe; 308, fourth air pipe; 309, sleeve cover; 4, joint mechanism; 401, joint tube; 402, retaining ring; 403, thread strip; 404, first needle rod; 405, stirring fan; 406, second needle rod; 407, spiral blade; 408, bracket; 5, seat mechanism; 501, seat tube; 502, internal thread; 503, grip ring; 504, strip ring; 505, first slide groove; 506, second slide groove; 507, second spring; 6, nozzle mechanism; 601, nozzle cover; 602, retaining plate; 603, nozzle; 604, pressure tube; 605, connecting tube; 606, small column. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example: See Figure 1 , Figure 2 , Figure 3 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.15 , Fig.16 A multifunctional anti-clogging spray gun includes 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 to a first external pipe 102 connected to 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; The gun body assembly includes a wind flow mechanism 2, a filling mechanism 3 and a joint mechanism 4; The gun head assembly includes 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 fixedly sleeved on the outer side of the joint tube 401 is arranged on the front side of the retaining ring 402; A dredging component is disposed 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 includes a nozzle cover 601, and baffles 602 are symmetrically fixedly connected to both sides of the front surface of the nozzle cover 601. A nozzle 603 is fixedly connected to 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 fit the inner side of the connecting tube 401, and a small column 606 is fixedly embedded on the inner wall of the rear port of the nozzle cover 601.

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Fig. 9 , Fig.11 , Fig.12 The upper ends of the gun handle 101 are symmetrically fixed with support pillars 103 on both sides thereof, and the upper end of the gun handle 101 is fixedly connected with a first air pipe 104 .

[0025] The air flow mechanism 2 includes a hollow air flow chamber 201, one side of the lower part of the air flow chamber 201 is fixedly connected to a second air pipe 202 connected to the first air pipe 104, and the other side of the lower part of the air flow chamber 201 is fixedly connected to a bent third air pipe 203; Membrane holes 204 are respectively provided on both sides of the upper part of the air flow chamber 201, and a pneumatic membrane 205 is fixedly connected to the inside of the membrane hole 204. The outer side of each membrane hole 204 is covered with an outer cover 206 fixedly connected to the air flow chamber 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 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 disk 208 that fits the pneumatic membrane 205 .

[0026] The wind flow chamber 201 is axially movable through a rotating rod 209, and the rotating rod 209 is sleeved with a wind wheel assembly inside the wind flow chamber 201. The wind wheel assembly and the wind flow chamber 201 are adapted. The wind wheel assembly includes a shaft sleeve 210 fixedly sleeved with the rotating rod 209, and the outer side of the shaft sleeve 210 is evenly and evenly 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 wind flow compartment 201. The second control valve 212 controls the air flow rate by controlling the rotation speed of the wind wheel assembly.

[0027] The filling mechanism 3 includes a solid connecting plate 301, the rear end of the connecting plate 301 penetrates the front wall of the fixed airflow bin 201, the front end of the connecting plate 301 is fixedly connected with a through pipe 302, the front end of the through pipe 302 is fixedly connected with a connecting pipe 303, and the upper side of the through pipe 302 is fixedly connected with a second external pipe 304 for external coating; A pressure handle 305 is movably mounted on the outer side of the connecting plate 301 through a torsion spring, and the output end of the first control valve 105 penetrates the gun handle 101 and supports the bottom of the pressure handle 305; The front port of the connecting tube 303 is expanded outward in a ring shape and is fixedly connected to the connecting tube 401. The outer side of the front port of the connecting tube 303 is fixedly sleeved with a ring tube 306. The inner side of the ring tube 306 is evenly and evenly fixedly connected with an L-shaped air outlet pipe 307. The air outlet pipe 307 passes through the front port of the connecting tube 303. The end of the air outlet pipe 307 away from the ring tube 306 faces the front side. The outer side of the ring tube 306 is fixedly connected with 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.

[0028] The dredging assembly includes a first needle rod 404, which is fixedly sleeved with a stirring fan 405 in a pressure tube 604, and a pin assembly adapted to the retracted end of the nozzle 603 is provided at the front end of the first needle rod 404. Initially, the pin assembly is not inserted into the retracted end of the nozzle 603, and a bracket 408 fixedly connected to the joint tube 401 is movably sleeved at the rear end of the first needle rod 404 through a bearing; The pin assembly comprises a second pin rod 406 fixedly connected to the first pin rod 404, and a spiral leaf 407 is fixedly wound around the outer side of the second pin 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 .

[0029] See also Fig.11 , Fig.12 , Fig.13 , Fig.14 The receiving mechanism 5 includes a receiving tube 501, an inner wall of which is provided with an internal thread 502 adapted to be screwed with the thread strip 403, and a grip ring 503 that 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 slide groove 505 parallel to the axial direction is formed on the upper side of the front end of the receiving tube 501, and a second slide groove 506 extending clockwise around the receiving tube 501 is formed at the rear end of the first slide 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 socket tube 501 , and the rear end of the second spring 507 is in contact with the grip ring 503 .

[0030] The working principle of the present invention is as follows: The second external tube 304 is connected to the paint, and the paint and air are sprayed out from the gun head assembly by pressing the pressure handle 305; When using the spray gun, the small column 606 of the spray head mechanism 6 is slid to the front end position of the first slide groove 505. At this time, the pin assembly is not inserted into the inner end of the spray head 603, and the spray head 603 is kept unobstructed. The pressure handle 305 is pressed to press the paint and air from the pressure tube 604 into the spray head 603, and the paint and air are sprayed out from the inner end of the spray head 603. The paint and air are sprayed out from the inner end of the spray head 603 through the opening of the second air pipe 202 and the third air pipe 203 on the wind flow bin 201. The air input by the external air pump of the first external pipe 102 is transported through the first air pipe 104, and the air inside the wind flow bin 201 is input by the second air pipe 202 and output by the third air pipe 203. The air is adapted to the wind flow bin 201 and the wind wheel assembly, so that the wind wheel assembly is driven to rotate counterclockwise when the air flows through the wind flow bin 201. By designing the flow passage of the air that the spray gun originally needs to transport, the dredging assembly is driven to rotate through the connection between the rotating rod 209 and the first needle rod 404, thereby improving the energy saving of the spray gun.

[0031] The outer cover 206 is sealed and maintains a high-pressure state. When the spray gun is not working, the air pressure in the outer cover 206 is greater than the air pressure in the wind flow chamber 201 and under the support of the elastic component, the pneumatic membrane 205 protrudes toward the inside of the wind flow chamber 201, thereby hindering the rotation of the wheel plate 211. Therefore, when the spray gun is not working, the wind wheel assembly and the dredging assembly remain stable, reducing involuntary rotation and the wear caused by it, thereby increasing the service life of the spray gun and improving the safety of the spray gun.

[0032] By leaving the pin assembly inside the spray head 603, there is no need to store it separately, and there is no need to pull out the pin assembly for use, thus avoiding the situation of losing the pin assembly and improving the convenience of using the spray gun.

[0033] When the gun head assembly is blocked, the small column 606 is first slid from the front end of the first slide groove 505 to the rear end by pushing the nozzle mechanism 6 backward, and then the nozzle mechanism 6 is rotated along the second slide groove 506 to gradually move the nozzle mechanism 6 toward the receiving seat mechanism 5. At this time, the pin assembly will also be gradually inserted into the inner end of the nozzle 603 from the inside to the outside, thereby effectively unblocking the gun head assembly and improving the anti-blockage performance of the spray gun.

[0034] In the process of moving the nozzle mechanism 6 toward the receiving mechanism 5, the small column 606 of the nozzle mechanism 6 needs to move along the second slide groove 506, so that the nozzle mechanism 6 rotates clockwise when moving toward the receiving mechanism 5, so that the dried waste in the nozzle 603 is sent out and cleaned through the spiral setting of the spiral blade 407, thereby improving the self-cleaning property of the spray gun.

[0035] During the use of the spray gun, air flow is injected into the gun head assembly through the gun handle 101, and the air flow drives the wind wheel assembly to rotate, thereby driving the dredging assembly to continuously rotate inside the nozzle 603 and the pressure tube 604, thereby timely and effectively stirring the paint to be sprayed inside the nozzle 603 and the pressure tube 604 to avoid its condensation, thereby improving the uniformity of the sprayed paint and improving the smoothness of the spray gun operation.

[0036] When the spray gun is in use, the pin assembly is retracted into the nozzle 603, thereby dispersing and reducing the internal aperture of the nozzle 603, achieving a more efficient atomization effect on the paint and improving the spraying uniformity of the spray gun.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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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