Detachable spray gun

Abstract

The utility model relates to the technical field of spray guns, in particular to a detachable spray gun which comprises a gun body and a spray head, the gun body is in butt joint with the spray head, a first butt joint part is arranged on the gun body, a second butt joint part is arranged on the spray head, the first butt joint part and the second butt joint part are in butt joint with each other, and limiting convex grooves are formed in the two sides of the first butt joint part. A through limiting notch is formed in the limiting convex groove, locking pieces are arranged on the opposite sides of the two sides of the second butt joint part, the locking pieces are arranged in the limiting convex groove in a sliding mode, and a locking mechanism is arranged at the overlapping position of the first butt joint part and the second butt joint part. And the locking mechanisms are inserted into the limiting notches in the two sides of the first butt joint part to lock the locking pieces on the second butt joint part, according to the scheme, the gun body and the spray head can be rapidly locked and disassembled through the locking mechanisms, and therefore the use convenience of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spray guns, in particular to a detachable spray gun. Background Art

[0002] A spray gun is a device that uses the rapid release of liquid or compressed air as power. Spray guns are divided into two types: ordinary pressure type and pressurized type. When the compressed air generated by an air compressor passes through the air cap at the front of the spray gun and is ejected, a low-pressure area lower than the atmospheric pressure is generated in front of the paint nozzle connected thereto. The spray gun is included in the automation selection of Kuaiyiyou. This pressure difference generated at the spray gun nozzle sucks the paint out of the paint storage tank and, under the action of the high-speed jet force of the compressed air, atomizes it into fine particles and sprays them on the surface of the object to be painted.

[0003] The Chinese invention patent with the publication number CN116422494B in the prior art discloses a spray gun convenient for liquid addition, including a spray gun grip and a connection housing. A connection housing is arranged on one side of the spray gun grip, and a circulation pipe is arranged on the other side of the spray gun grip. A trigger is arranged on the side of the circulation pipe, and a nozzle is arranged at the end of the circulation pipe. For this spray gun convenient for liquid addition, when the adjustment disk is rotated clockwise, the adjustment disk squeezes the inclined surface with a conical end of the docking head, causing the docking head and the plugging head to slide in the connection groove inside the mounting disk. When the docking head slides upward, it simultaneously squeezes the first spring arranged on the docking head. When the docking head moves to the maximum position, the bottom of the docking head will fit on the upper surface of the adjustment disk, achieving the effect of plugging the bottom inlet of the diversion pipe. When moving to the next storage tank, the docking head will reset again, achieving the effect of quickly replacing the sprayed paint and quickly adding liquid.

[0004] However, the spray gun in the prior art cannot achieve the quick disassembly of the gun body and the nozzle, resulting in very inconvenient cleaning and maintenance of the spray gun. Content of the Utility Model

[0005] To solve the problem that the above-mentioned spray gun cannot achieve the quick disassembly of the gun body and the nozzle, the utility model provides a detachable spray gun, and the specific technical solution is as follows:

[0006] A detachable spray gun includes a gun body and a nozzle. The gun body and the nozzle are docked. A first docking part is arranged on the gun body, and a second docking part is arranged on the nozzle. The first docking part and the second docking part are docked with each other. Limiting convex grooves are arranged on both sides of the first docking part, and through limiting notches are arranged on the limiting convex grooves. Locking parts are arranged on the opposite sides of both sides of the second docking part. The locking parts are slidably arranged in the limiting convex grooves. A locking mechanism is arranged at the overlapping position of the first docking part and the second docking part. The locking mechanism is inserted into the limiting notches on both sides of the first docking part to lock the locking parts on the second docking part.

[0007] Further, the locking mechanism is a U-shaped elastic member, and both side arms of the U-shaped elastic member are embedded in the limiting notches on both side limiting grooves.

[0008] Further, both side segments of the U-shaped elastic member are bent to form folding feet. A guiding bevel is provided at a position below the first docking portion. The folding feet at the lower end of the U-shaped elastic member are in contact with the guiding bevel on the first docking portion. Press the U-shaped elastic member to expand both of its side arms and separate from the locking member.

[0009] Further, a pressing member is slidably arranged on the gun body, and the lower end of the pressing member abuts against the upper end of the U-shaped elastic member. Press down the pressing member to make the U-shaped elastic member slide downward in the limiting notch.

[0010] Further, a sealing ring is sleeved on the second docking portion, and the sealing ring seals the gap between the first docking portion and the second docking portion.

[0011] Further, a sliding edge is provided on one side of the locking member close to the first docking portion.

[0012] Further, anti-slip lines are provided on the top of the pressing member.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] First: In this solution, limiting grooves are provided on both sides of the first docking portion, and through limiting notches are provided on the limiting grooves. Locking members are provided on both opposite sides of the second docking portion. The locking members are slidably arranged in the limiting grooves. A locking mechanism is provided at the overlapping position of the first docking portion and the second docking portion. The first docking portion and the second docking portion can be locked and disassembled through the locking mechanism, so as to realize the quick disassembly and assembly of the gun body and the nozzle.

[0015] Second: The locking mechanism is a U-shaped elastic member. When it is necessary to install the gun body and the nozzle, press the pressing member to make the U-shaped elastic member slide downward in the limiting notch. Expand the lower opening of the U-shaped elastic member through the guiding bevel. At this time, insert the second docking portion into the first docking portion, and then release the pressing member. The U-shaped elastic member rebounds inward to lock the locking member. At the same time, the folding feet of the U-shaped elastic member slide upward along the guiding bevel to push up the pressing member to achieve reset. When it is necessary to separate the gun body and the nozzle, press down the pressing member to make the U-shaped elastic member slide downward in the limiting notch. Expand the lower opening of the U-shaped elastic member through the guiding bevel, so that the U-shaped elastic member is separated from the locking member. At this time, the U-shaped elastic member loses the locking of the first docking portion and the second docking portion, and then apply a force to the nozzle to pull it out of the gun body to achieve separation.

[0016] Thirdly, a sliding edge is provided on one side of the locking member close to the first docking portion. In this way, when installing the gun body and the nozzle, the second docking portion in the nozzle can be directly aligned with the first docking portion in the gun body. Apply force to the nozzle to insert the second docking portion into the first docking portion, and at the same time use the sliding edge to guide the U-shaped elastic member, so that the two arms of the U-shaped elastic member expand outwards. After the second docking portion is inserted into the appropriate position of the first docking portion, the U-shaped elastic member resets to lock the locking member. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the detachable spray gun;

[0018] Figure 2 is a schematic diagram of the disassembly of the detachable spray gun Figure 1 ;

[0019] Figure 3 is a schematic diagram of the disassembly of the detachable spray gun Figure 2 ;

[0020] Figure 4 is Figure 2 an enlarged schematic diagram of part A in

[0021] Figure 5 is Figure 3 an enlarged schematic diagram of part B in

[0022] Figure 6 is a schematic diagram of the state structure when the U-shaped elastic member is tightened on the second docking portion;

[0023] Figure 7 is a schematic diagram of the state structure when the U-shaped elastic member is unfolded on the second docking portion.

[0024] Reference numerals: gun body 1, first docking portion 11, limit convex groove 12, limit notch 121, guiding bevel 13, pressing member 14, nozzle 2, second docking portion 21, locking member 211, U-shaped elastic member 3, folding foot 31, sealing ring 4. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0026] Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents the selected embodiments of the present invention.

[0027] 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.

[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", and "coupled" 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 or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The present utility model will be further described in conjunction with the accompanying drawings.

[0031] As Figures 1 to 7 shown, a detachable spray gun includes a gun body 1 and a spray head 2. The gun body 1 and the spray head 2 are docked. A first docking portion 11 is provided on the gun body 1, and a second docking portion 21 is provided on the spray head 2. The first docking portion 11 and the second docking portion 21 are docked with each other to achieve the docking of the gun body 1 and the spray head 2. Limiting convex grooves 12 are provided on both sides of the first docking portion 11, and a through limiting notch 121 is provided on the limiting convex grooves 12. Locking members 211 are provided on the opposite sides of both sides of the second docking portion 21. The locking members 211 are slidably arranged in the limiting convex grooves 12. A locking mechanism is provided at the overlapping position of the first docking portion 11 and the second docking portion 21. The locking mechanism is inserted into the limiting notches 121 on both sides of the first docking portion 11 to lock the locking members 211 on the second docking portion 21.

[0032] In an embodiment of the present application, the locking mechanism is a U-shaped elastic member 3. The two side arms of the U-shaped elastic member 3 are embedded in the limiting notches 121 on the two side limiting grooves 12. The two side segments of the U-shaped elastic member 3 are bent to form folding feet 31. A guiding bevel 13 is provided at a position below the first docking portion 11. The folding feet 31 at the lower end of the U-shaped elastic member 3 are in contact with the guiding bevel 13 on the first docking portion 11. Press the U-shaped elastic member 3 to expand its two side arms and separate from the locking member 211. A pressing member 14 is slidably arranged on the gun body 1. The lower end of the pressing member 14 abuts against the upper end of the U-shaped elastic member 3. Press down the pressing member 14 to make the U-shaped elastic member 3 slide downward in the limiting notch 121.

[0033] As Figure 6 and Figure 7 shown, when the gun body 1 and the nozzle 2 need to be installed, press down the pressing member 14 to make the U-shaped elastic member 3 slide downward in the limiting notch 121, and expand the lower opening of the U-shaped elastic member 3 through the guiding bevel 13. At this time, insert the second docking portion 21 into the first docking portion 11, and then release the pressing member 14. The U-shaped elastic member 3 rebounds inward to lock the locking member 211. At the same time, the folding feet 31 of the U-shaped elastic member 3 slide upward along the guiding bevel 13 to push the pressing member 14 upward to achieve reset.

[0034] As Figure 6 and Figure 7 shown, when the gun body 1 and the nozzle 2 need to be separated, press down the pressing member 14 to make the U-shaped elastic member 3 slide downward in the limiting notch 121, and expand the lower opening of the U-shaped elastic member 3 through the guiding bevel 13, so that the U-shaped elastic member 3 is separated from the locking member 211. At this time, the U-shaped elastic member 3 loses the locking of the first docking portion 11 and the second docking portion 21, and then apply a force to the nozzle 2 to pull it out of the gun body 1 to achieve separation.

[0035] On this basis, a sliding edge is provided on one side of the locking member 211 close to the first docking portion 11. In this way, when the gun body 1 and the nozzle 2 are installed, the second docking portion 21 in the nozzle 2 can be directly aligned with the first docking portion 11 in the gun body 1. Apply a force to the nozzle 2 to insert the second docking portion 21 into the first docking portion 11, and at the same time use the sliding edge to guide the U-shaped elastic member 3, so that the two side arms of the U-shaped elastic member 3 expand outward. After the second docking portion 21 is inserted into the appropriate position of the first docking portion 11, the U-shaped elastic member 3 resets to lock the locking member 211.

[0036] In another embodiment of the present application, the locking mechanism is a locking pin. When the gun body 1 and the nozzle 2 need to be locked, the locking pin can be inserted into the limiting notch 121, and the locking pin is used to lock the locking piece 211, so that the overlapping position of the first docking portion 11 and the second docking portion 21 is locked. When the gun body 1 and the nozzle 2 need to be separated, the locking pin is pulled out of the limiting notch 121. At this time, the locking pin loses the lock on the locking piece 211, and the second docking portion 21 is pulled out from the first docking portion 11.

[0037] Preferably, a sealing ring 4 is sleeved on the second docking portion 21 , and the sealing ring 4 seals the gap between the first docking portion 11 and the second docking portion 21 .

[0038] Preferably, the top of the pressing member 14 is provided with anti-slip textures, so as to improve the user's feel when operating the pressing member 14 .

[0039] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the claims of the present invention.

Claims

1. A detachable spray gun, comprising a gun body (1) and a spray head (2), wherein the gun body (1) and the spray head (2) are butt-jointed, and characterized in that: The gun body (1) is provided with a first docking portion (11), and the nozzle (2) is provided with a second docking portion (21). The first docking portion (11) and the second docking portion (21) are docked with each other. Position limiting grooves (12) are provided on both sides of the first docking portion (11), and a through position limiting notch (121) is provided on the position limiting groove (12). Locking pieces (211) are provided on opposite sides of both sides of the second docking portion (21). The locking pieces (211) are slidably arranged in the position limiting grooves (12). A locking mechanism is provided at the overlapping position of the first docking portion (11) and the second docking portion (21). The locking mechanism is inserted into the position limiting notches (121) on both sides of the first docking portion (11) to lock the locking piece (211) on the second docking portion (21).

2. The spray gun according to claim 1, characterized in that The locking mechanism is a U-shaped elastic member (3), and the two side arms of the U-shaped elastic member (3) are embedded in the limiting notches (121) on the limiting convex grooves (12) on both sides.

3. The spray gun according to claim 2, characterized in that The two side sections of the U-shaped elastic member (3) are bent to form folded legs (31), and a guiding bevel (13) is provided at a position below the first docking portion (11). The folded legs (31) at the lower end of the U-shaped elastic member (3) are in contact with the guiding bevel (13) on the first docking portion (11), and the U-shaped elastic member (3) is pressed to unfold its two side arms and separate from the locking member (211).

4. The spray gun according to claim 3, characterized in that A pressing piece (14) is slidably provided on the gun body (1), and the lower end of the pressing piece (14) contacts the upper end of the U-shaped elastic piece (3). Pressing the pressing piece (14) downward causes the U-shaped elastic piece (3) to slide downward in the limiting notch (121).

5. The spray gun according to claim 2, characterized in that A sealing ring (4) is sleeved on the second butt joint portion (21), and the sealing ring (4) seals the gap between the first butt joint portion (11) and the second butt joint portion (21).

6. The spray gun according to claim 2, characterized in that A sliding edge is provided on one side of the locking member (211) close to the first docking portion (11).

7. The spray gun according to claim 4, characterized in that The top of the pressing piece (14) is provided with anti-slip textures.

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