Spraying gun with self-cleaning function

Abstract

The utility model relates to the technical field of spray guns, in particular to a spray gun with a self-cleaning function, which comprises a spray gun body and a paint storage tank fixedly connected to one side of the upper end of the spray gun body and used for storing paint. One side of the lower end of the spraying gun body is fixedly connected with a main output pipe used for conveying high-pressure gas into the spraying gun body so that paint in the paint storage tank can be sprayed out of the spraying pipe, and one side of the lower end of the outer wall of the main output pipe is fixedly connected with an auxiliary output pipe. A cut-off assembly is arranged at the joint of the interior of the main output pipe and the auxiliary output pipe and used for adjusting the conveying direction of high-pressure gas. Compared with the prior art, the problem that in the prior art, it is difficult to automatically and efficiently solve paint residues and block the inner wall of the spray pipe on the premise that the spray pipe is not disassembled is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to spray gun technical field especially, it relates to a kind of spraying spray gun with self-cleaning function. BACKGROUND

[0002] On the broad stage of present coating industry, as core tool, the importance of spraying spray gun is self-evident, these spray guns are driven by introducing high-pressure gas as power source, drive internal structure precision operation, so that coating is under the action of high pressure, with unprecedented speed from the spray pipe of the front end of spray gun, realize accurate and accurate spraying operation, however, spraying spray gun in actual application process, often face a thorny problem: paint residue and blockage phenomenon frequently occur, these stubborn residues, especially tend to accumulate in the inner wall of the spray pipe of the front end of spray gun, if not timely and effective removal, not only can directly weaken the uniformity and precision of spraying, lead to product quality is greatly discounted, also can greatly increase cost expenditure due to frequent maintenance needs, affect overall work efficiency.

[0003] To cope with this challenge, although a variety of improved spraying spray guns have emerged in the market, but unfortunately, they are mostly designed complicated, cleaning process still needs to rely on manual disassembly spray pipe in the state of shutdown, considering the fast curing characteristics of paint coating, once spraying operation is suspended, operator needs to act in very short time window, complete the disassembly and cleaning work of spray pipe, which is undoubtedly a double test to time and human resources, this process not only intensifies the interruption frequency of spraying operation, but also significantly improves the labor intensity and complexity of manual cleaning.

[0004] Further, we disclose a kind of spraying spray gun with self-cleaning function to meet the practical needs of automatic and efficient solution to paint residue and blockage on the inner wall of spray pipe under the premise of not disassembling spray pipe in prior art. CONTENT OF UTILITY MODEL

[0005] Therefore, the purpose of the utility model is to provide a kind of spraying spray gun with self-cleaning function, to solve the problem that automatic and efficient solution to paint residue and blockage on the inner wall of spray pipe under the premise of not disassembling spray pipe in prior art.

[0006] In order to achieve the above object, the utility model provides a spray spray gun with self -cleaning function, including spray spray gun body and fixed connection in spray spray gun body upper end one side for storage paint paint storage tank, one end of spray spray gun body is fixedly connected with spray pipe, the lower end one side of spray spray gun body is fixedly connected with the main output pipe for conveying high pressure gas into the inside of spray spray gun body makes paint storage tank inside paint from spray pipe spray, the outer wall lower end one side of main output pipe is fixedly connected with vice output pipe, the junction of the inside of main output pipe with vice output pipe is provided with intercepting component, intercepting component is used for adjusting the delivery direction of high pressure gas, one side of the one end of spray pipe is close to spray spray gun body and is provided with self -cleaning component, self -cleaning component is used for the cleaning work of the inner wall of spray pipe and is cleaned by the high pressure gas of vice output pipe.

[0007] Preferably, the intercepting component includes a ball provided inside the main output pipe, the outer diameter of the ball is the same as the inner diameter of the main output pipe, a through hole is formed in the middle of the ball, the through hole is in the shape of a boomerang and has an angle of 140°.

[0008] Preferably, a rotating disc is provided on one side of the outer portion of the main output pipe, the rotating disc is fixedly connected to the ball inside the main output pipe through a rotating shaft, the rotating shaft is rotatably connected to the main output pipe, a clamping plate is rotatably connected to the middle of the rotating disc, a first spring is fixedly connected to the middle of one end surface of the clamping plate, a button is fixedly connected to one end of the first spring, a connecting plate is fixedly connected to one side of the outer wall of the button, a spring piece is fixedly connected to the end of the connecting plate away from the button, the spring piece is fixedly connected to the rotating disc at the lower end, the spring piece is made of elastic material, a second spring is fixedly connected to the middle of one side of the lower end surface of the spring piece, and the lower end of the second spring is fixedly connected to the rotating disc.

[0009] Preferably, the spring piece is annular and coaxial with the rotating disc, a limiting column is fixedly connected to the upper end of one end surface of the spring piece away from the rotating disc, a bracket is fixedly connected to one side of the lower end of the outer wall of the main output pipe, a ring plate is fixedly connected to the upper end of the bracket, the ring plate is annular and coaxial with the spring piece, three limiting holes are spaced apart on one side of the ring plate close to the spring piece, and the limiting column is clamped in the limiting hole.

[0010] Preferably, the self-cleaning component includes a shunt sleeve that is sleeved outside the spray pipe, a plurality of cleaning nozzles are uniformly and fixedly connected inside the shunt sleeve, the plurality of cleaning nozzles are L-shaped and extend into the inside of the spray pipe at the lower end, the output end of the cleaning nozzle faces the outlet of the spray pipe, and the cleaning nozzle is fixedly connected with the spray pipe.

[0011] Preferably, the shunt sleeve is hollow, a plurality of the cleaning spray heads are communicated with the shunt sleeve, and a connecting hose is fixedly connected to the middle of the lower end of the shunt sleeve.

[0012] Preferably, a gas supply pipe is threadedly connected to the lower end of the main output pipe.

[0013] The utility model discloses beneficial effect has:

[0014] The spraying spray gun greatly promotes the efficiency and convenience of spraying operation, when the user carries out spraying work, if the inner wall of the spray pipe needs to be cleaned, the user does not need to tediously disassemble the spray pipe, and only needs to simply operate the flow interception assembly, and this operation can rapidly change the conveying direction of the high-pressure gas, and make the high-pressure gas turn from the main output pipe originally used for spraying to the auxiliary output pipe, along with the high-pressure gas being sprayed from the auxiliary output pipe, the self-cleaning assembly is driven to start working, and the self-cleaning assembly carries out comprehensive and efficient cleaning on the inner wall of the spray pipe by using the high-pressure gas, this process not only saves the tedious steps of disassembly, cleaning and reassembly in the traditional cleaning mode, but also greatly shortens the time required for cleaning, improves the overall efficiency of operation, and after the cleaning work is completed, the user only needs to operate the flow interception assembly again, and the conveying direction of the high-pressure gas can be adjusted back to the main output pipe, so that spraying work can be continuously carried out, and this design makes spraying and cleaning realize seamless switching, and greatly improves the continuity and fluency of work. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only the utility model, and other drawings can be obtained by the ordinary skilled in the art without creating labor.

[0016] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0017] Figure 2 It is a main output pipe internal structure schematic view of the utility model;

[0018] Figure 3 It is a spray pipe internal structure schematic view of the utility model;

[0019] Figure 4 It is a limiting assembly partial three-dimensional structure schematic view of the utility model;

[0020] Figure 5 It is a ring plate three-dimensional structure schematic view of the utility model.

[0021] The marks in the drawing are:

[0022] 1, spray gun body; 2, paint storage tank; 3, main output pipe; 4, rotating disc; 5, gas supply pipe; 6, auxiliary output pipe; 7, connecting hose; 8, shunt sleeve; 9, spray pipe; 10, ball; 11, through hole; 12, cleaning nozzle; 13, limiting column; 14, elastic sheet; 15, connecting plate; 16, button; 17, first spring; 18, clamping plate; 19, second spring; 20, ring plate; 21, bracket; 22, limiting hole. DETAILED DESCRIPTION

[0023] To make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with specific examples.

[0024] It should be noted that, unless otherwise defined, technical terms or scientific terms used in the present application should be understood as the usual meaning understood by those skilled in the art to which the present application belongs. The terms "first", "second" and similar terms used in the present application do not represent any order, quantity or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar terms mean that the elements or objects before the terms cover the elements or objects listed after the terms and their equivalents, without excluding other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right" and the like are only used to represent relative positional relationships, which may change accordingly when the absolute position of the described object changes.

[0025] As shown in Figures 1 to 5 A spray gun with a self-cleaning function, comprising a spray gun body 1 and a paint storage tank 2 fixedly connected to one side of the upper end of the spray gun body 1 for storing paint, one end of the spray gun body 1 is fixedly connected with a spray pipe 9, one side of the lower end of the spray gun body 1 is fixedly connected with a main output pipe 3 for conveying high-pressure gas into the interior of the spray gun body 1 to make the paint inside the paint storage tank 2 sprayed from the spray pipe 9, one side of the lower end of the outer wall of the main output pipe 3 is fixedly connected with an auxiliary output pipe 6, the connection between the interior of the main output pipe 3 and the auxiliary output pipe 6 is provided with a flow blocking assembly, the flow blocking assembly is used to adjust the conveying direction of the high-pressure gas, one end of the spray pipe 9 close to one side of the spray gun body 1 is provided with a self-cleaning assembly, the self-cleaning assembly is used to clean the inner wall of the spray pipe 9 and the high-pressure gas conveyed through the auxiliary output pipe 6;

[0026] The spraying gun greatly improves the efficiency and convenience of the spraying operation. When the user needs to clean the inner wall of the spray pipe 9 during the spraying operation, the user only needs to simply operate the flow blocking assembly. This operation can quickly change the conveying direction of the high-pressure gas from the main output pipe 3 originally used for spraying to the auxiliary output pipe 6. As the high-pressure gas is sprayed from the auxiliary output pipe 6, it drives the self-cleaning assembly to start working. The self-cleaning assembly uses the high-pressure gas to comprehensively and efficiently clean the inner wall of the spray pipe 9. This process not only eliminates the cumbersome steps of disassembly, cleaning, and reassembly in the traditional cleaning method, but also greatly shortens the time required for cleaning, improves the overall efficiency of the operation, and improves the continuity and smoothness of the work.

[0027] Further, as shown in Figure 2 、 Figures 4 to 5 , the flow blocking assembly includes a ball 10 arranged inside the main output pipe 3. The outer diameter of the ball 10 is the same as the inner diameter of the main output pipe 3. A through hole 11 is formed in the middle of the ball 10. The through hole 11 is in the shape of a boomerang and has an angle of 140°. The outer side of the main output pipe 3 is provided with a turntable 4. The middle of the turntable 4 is fixedly connected to the ball 10 inside the main output pipe 3 through a rotating shaft. The rotating shaft is rotatably connected to the main output pipe 3. The middle of the turntable 4 is rotatably connected to a clamping plate 18. The middle of the end surface of one side of the clamping plate 18 is fixedly connected to a first spring 17. One end of the first spring 17 is fixedly connected to a button 16. The outer wall of one side of the button 16 is fixedly connected to a connecting plate 15. The end of the connecting plate 15 away from the button 16 is fixedly connected to a spring piece 14. The lower end of the spring piece 14 is fixedly connected to the turntable 4. The spring piece 14 is made of elastic material. The lower end surface of one side of the middle of the spring piece 14 is fixedly connected to a second spring 19. The lower end of the second spring 19 is fixedly connected to the turntable 4. The spring piece 14 is annular and coaxial with the turntable 4. The end surface of one side of the spring piece 14 away from the turntable 4 is fixedly connected to a limiting column 13. The lower end of one side of the outer wall of the main output pipe 3 is fixedly connected to a support 21. The upper end of the support 21 is fixedly connected to a ring plate 20. The ring plate 20 is annular and coaxial with the spring piece 14. Three limiting holes 22 are arranged at intervals on the end surface of one side of the ring plate 20 close to the spring piece 14. The limiting column 13 is clamped in the limiting hole 22.

[0028] The core component of the assembly is a ball 10 arranged inside the main output pipe 3, the outer diameter of the ball 10 is accurately matched with the inner diameter of the main output pipe 3, which ensures that it can stably rotate in the pipe without gas leakage. The middle part of the ball 10 is designed with a unique "boomerang" shaped through hole 11, the angle of the through hole 11 is 140°, this special design makes the high-pressure gas change direction according to the rotation position of the ball 10 when passing through, in order to control the rotation of the ball 10, the outer side of the main output pipe 3 is installed with a rotating disc 4, the rotating disc 4 is fixedly connected with the inside of the ball 10 through a rotating shaft, realizing the synchronous rotation of the rotating disc 4 and the ball 10, the middle part of the rotating disc 4 is also rotatably connected with a clamping plate 18, one side of the clamping plate 18 is connected with a button 16 through a first spring 17, the button 16 is connected with a spring piece 14 through a connecting plate 15, the spring piece 14 is made of elastic material, the lower end is fixed on the rotating disc 4, and the elastic reset ability is further enhanced through a second spring 19, the spring piece 14 is annular and coaxial with the rotating disc 4, and a limiting column 13 is arranged on the side end face away from the rotating disc 4, the outer wall of the main output pipe 3 is fixed with a support 21 on one side of the lower end, the upper end of the support 21 is provided with a ring plate 20, the ring plate 20 is also annular and coaxial with the spring piece 14, three limiting holes 22 are arranged on the side end face of the ring plate 20 close to the spring piece 14, the limiting column 13 can be clamped in these limiting holes 22, when it is needed to change the conveying direction of the high-pressure gas, the user only needs to press the button 16, through the transmission of the first spring 17 and the connecting plate 15, the spring piece 14 is elastically deformed, the limiting column 13 is separated from the current limiting hole 22, at this time, the rotating disc 4 and the ball 10 can rotate freely, when rotating to the required position, the button 16 is released, under the joint action of the first spring 17 and the second spring 19, the spring piece 14 resets, the limiting column 13 reenters another limiting hole 22, thereby fixing the position of the ball 10, in this way, the high-pressure gas will change direction through the "boomerang" shaped through hole 11 on the ball 10, realizing the quick switching between spraying and self-cleaning functions, the limiting groove is provided with three limiting holes respectively used for spraying, self-cleaning and pausing work of the spray gun.

[0029] Further, as shown in Figure 1 and Figure 3 , the self-cleaning assembly includes a shunt sleeve 8 arranged outside the spray pipe 9, a plurality of cleaning nozzles 12 are fixedly connected inside the shunt sleeve 8, the cleaning nozzles 12 are L-shaped and the lower ends extend into the inside of the spray pipe 9, the output end of the cleaning nozzle 12 faces the outlet of the spray pipe 9, the cleaning nozzle 12 is fixedly connected with the spray pipe 9, the shunt sleeve 8 is designed as hollow, the plurality of cleaning nozzles 12 are communicated with the shunt sleeve 8, the lower end of the shunt sleeve 8 is fixedly connected with the connecting hose 7, the lower end of the connecting hose 7 is fixedly connected with the auxiliary output pipe 6 and communicated with each other;

[0030] The assembly designs a shunt sleeve 8 sleeved outside the spray pipe 9, a plurality of L-shaped cleaning nozzles 12 are fixedly connected in the shunt sleeve 8 at uniform intervals, the lower ends of the cleaning nozzles 12 extend into the inside of the spray pipe 9, and the output ends of the cleaning nozzles 12 are accurately directed to the outlet of the spray pipe 9, so that when the high-pressure gas passes through, a strong airflow is formed to directly impact the inner wall of the spray pipe 9, thereby effectively cleaning, and when the spraying work is performed, the paint coating is not easy to enter the inside of the cleaning nozzle 12, the shunt sleeve 8 is hollow, so that the plurality of cleaning nozzles 12 are in communication with the inside of the shunt sleeve 8, when the high-pressure gas is conveyed from the auxiliary output pipe 6 and enters the shunt sleeve 8 through the connecting hose 7, the gas is uniformly distributed to each cleaning nozzle 12. Since the cleaning nozzle 12 is designed in an L shape, the cleaning nozzle 12 can guide the airflow to the inner wall of the spray pipe 9 to form a rotating or flushing effect, thereby further enhancing the cleaning strength, so that when the user changes the conveying direction of the high-pressure gas to be sprayed from the auxiliary output pipe 6 by operating the shutoff assembly, the high-pressure gas sequentially passes through the connecting hose 7, the shunt sleeve 8 and the cleaning nozzle 12, and finally forms comprehensive cleaning of the inner wall of the spray pipe 9, the entire cleaning process does not need to disassemble the spray pipe 9, greatly simplifies the operation process, improves the working efficiency, and simultaneously, since the cleaning nozzle 12 is fixedly connected with the spray pipe 9, the accuracy and stability of the cleaning are ensured, so that the self-cleaning assembly can long-term and effectively provide cleaning guarantee for the spraying gun.

[0031] Further, as shown in Figure 1 The lower end of the main output pipe 3 is threadedly connected with a gas supply pipe 5, the gas supply pipe 5 is connected with the air pump to realize high-pressure gas supply of the spraying gun, and the threaded connection improves the convenience of installation and disassembly.

[0032] It should be understood by those skilled in the art that the above discussion of any embodiment is only exemplary and is not intended to imply that the scope (including claims) of the utility model is limited to these examples; under the idea of the utility model, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the utility model as described above, which are not provided in details for the sake of brevity.

[0033] The utility model aims at covering all such alternatives, modifications and variations falling within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. made in the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A spray gun with a self-cleaning function, comprising a spray gun body (1) and a paint storage tank (2) fixedly connected to one side of the upper end of the spray gun body (1) for storing paint, characterized in that: One end of the spray gun body (1) is fixedly connected to a nozzle (9), and one side of the lower end of the spray gun body (1) is fixedly connected to a main output pipe (3) for conveying high-pressure gas into the interior of the spray gun body (1) so that the paint in the paint storage tank (2) is sprayed out from the nozzle (9). One side of the lower end of the outer wall of the main output pipe (3) is fixedly connected to an auxiliary output pipe (6). A cut-off component is provided at the connection between the interior of the main output pipe (3) and the auxiliary output pipe (6). The cut-off component is used to adjust the conveying direction of the high-pressure gas. A self-cleaning component is provided on the side of one end of the nozzle (9) close to the spray gun body (1). The self-cleaning component is used to clean the inner wall of the nozzle (9) and clean the high-pressure gas conveyed through the auxiliary output pipe (6).

2. The spray gun with a self-cleaning function according to claim 1, characterized in that: The intercepting assembly comprises a sphere (10) arranged inside the main output pipe (3), the outer diameter of the sphere (10) being the same as the inner diameter of the main output pipe (3), and a through hole (11) being provided in the middle of the sphere (10), the through hole (11) being in the shape of a "boomerang" and having an angle of 140°.

3. The spray gun with a self-cleaning function according to claim 2, characterized in that: A turntable (4) is provided on one side of the outside of the main output tube (3). The middle of the turntable (4) is fixedly connected to the sphere (10) inside the main output tube (3) via a rotating shaft. The rotating shaft is engaged and rotatably connected to the main output tube (3). The middle of the turntable (4) is engaged and rotatably connected to a clamping plate (18). A first spring (17) is fixedly connected to the middle of one end surface of the clamping plate (18). One end of the first spring (17) is fixedly connected to a button (16). A connecting plate (15) is fixedly connected to one side of the outer wall of the button (16). An end of the connecting plate (15) away from the button (16) is fixedly connected to a spring (14). The lower end of the spring (14) is fixedly connected to the turntable (4). The spring (14) is made of elastic material. A second spring (19) is fixedly connected to one side of the middle of the lower end surface of the spring (14). The lower end of the second spring (19) is fixedly connected to the turntable (4).

4. The spray gun with a self-cleaning function according to claim 3, characterized in that: The spring piece (14) is annular and coaxial with the turntable (4); the upper end of the end surface of the spring piece (14) away from the turntable (4) is fixedly connected to the limiting column (13); the lower end of the outer wall of the main output tube (3) is fixedly connected to a bracket (21); the upper end of the bracket (21) is fixedly connected to a ring plate (20); the ring plate (20) is annular and coaxial with the spring piece (14); the end surface of the ring plate (20) close to the spring piece (14) is provided with three limiting holes (22) at intervals, and the limiting column (13) is engaged in the limiting hole (22).

5. The spray gun with a self-cleaning function according to claim 4, characterized in that: The self-cleaning component comprises a diverter sleeve (8) sleeved on the outside of the nozzle (9), a plurality of cleaning nozzles (12) are evenly spaced and fixedly connected to the inside of the diverter sleeve (8), the plurality of cleaning nozzles (12) are all L-shaped and the lower ends extend into the interior of the nozzle (9), the output ends of the cleaning nozzles (12) face the outlet of the nozzle (9), and the cleaning nozzles (12) are fixedly connected to the nozzle (9).

6. The spray gun with a self-cleaning function according to claim 5, characterized in that: The diverter sleeve (8) is of hollow design, and the plurality of cleaning nozzles (12) are all connected to the diverter sleeve (8). A connecting hose (7) is fixedly connected to the middle portion of the lower end of the diverter sleeve (8), and the lower end of the connecting hose (7) is fixedly connected to and communicates with the auxiliary output pipe (6).

7. The spray gun with a self-cleaning function according to claim 6, characterized in that: The lower end of the main output pipe (3) is threadedly connected to an air supply pipe (5).

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