Metal paint spraying gun

Abstract

The utility model discloses a metal paint spraying gun, which belongs to the technical field of paint spraying devices and comprises a gun body, the bottom of the gun body is communicated with a paint inlet pipe, the bottom end of the paint inlet pipe is communicated with a connecting shell, and a rotating middle body is rotatably mounted in an inner cavity of the connecting shell. Two groups of fluid channels which are intermittently communicated with the paint inlet pipe are formed in the rotary middle body, and a connector is arranged at one end of each group of fluid channel; the main paint barrel and the auxiliary paint barrel are arranged at the bottom of the gun body, after paint in the main paint barrel is used up, the angle positioning assembly can be opened, the main paint barrel and the auxiliary paint barrel can be rotated, and the auxiliary paint barrel is switched to be used for providing the paint for the gun body. The automatic paint spraying device has the advantage of being high in switching speed, the situation that paint spraying operation is interrupted for a long time due to paint barrel replacement can be avoided, spraying continuity can be guaranteed, and then the paint spraying efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of paint spraying devices, in particular to a metal paint spraying gun. Background Art

[0002] A paint spray gun is a tool for spraying paint. It is used for surface treatment of products and is a type of coating equipment. It uses compressed air to atomize the paint into fine paint droplets, which are then sprayed onto the surface of the object under the drive of the airflow. It is mainly composed of a spray cap, a nozzle, a needle valve and a gun body. At the same time, it needs to be connected to an external air pressure device, such as a pressure tank, a pressure barrel, a pump, etc.

[0003] A Chinese patent with a publication number of CN218340075U discloses a spray gun with an adjustable paint canister, which belongs to the technical field of spray guns. The spray gun with an adjustable paint canister includes a spray gun body and an adjustable paint canister assembly. The adjustable paint canister assembly includes an upper barrel, a lower barrel, a corrugated connecting barrel and an adjustable telescopic member, the top and bottom of the corrugated connecting barrel are respectively fixedly connected to the bottom end of the upper barrel and the top end of the lower barrel, the two fixed ends of the two adjustable telescopic members are respectively symmetrically arranged on the side walls of the bottom end of the upper barrel and the top end of the lower barrel, and the top end of the upper barrel is detachably connected to the paint inlet below the spray gun body. By setting the corrugated connecting barrel and the adjustable telescopic member, when spraying a larger area, the frequent disassembly and filling can be reduced, thereby improving the spraying efficiency.

[0004] The paint spray gun involved in the above patent chooses to increase the volume of the paint canister in order to reduce the frequency of disassembling and assembling the paint canister. However, after the paint in the paint canister is sprayed, the spraying operation needs to be suspended to replace the paint canister, resulting in the interruption of the painting operation, affecting the continuity of the spraying operation, and further affecting the spraying efficiency. Therefore, we need to propose a metal paint spray gun. Utility Model Content

[0005] The utility model aims to provide a metal paint spray gun, which has the advantage of being able to quickly switch paint cartridges to ensure spraying continuity, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides a metal paint spray gun, including a gun body, the bottom of the gun body is connected to a paint inlet pipe, the bottom end of the paint inlet pipe is connected to a connecting shell, the inner cavity of the connecting shell is rotatably installed with a rotating intermediate body, the interior of the rotating intermediate body is provided with two groups of fluid channels intermittently connected to the paint inlet pipe, and one end of each group of the fluid channels is provided with a connecting head, one end of the two groups of the connecting heads are respectively threadedly connected to a main paint barrel and a secondary paint barrel, one end of the connecting shell is installed with an angle positioning component for positioning the switching angle when switching the main paint barrel and the secondary paint barrel, and a sealing component for blocking the fluid channel is provided on the surface of the connecting shell and at the corresponding position of the fluid channel.

[0007] Preferably, the sealing assembly includes a sealing tube fixedly installed on both sides of the top of the connecting shell, the inner cavity of the sealing tube is slidably connected with a top block, a sealing bead is provided on one side of the top block, and a compression spring 1 is fixedly installed on the other side of the top block, and the end of the compression spring 1 away from the top block is fixedly connected to the inner wall of the sealing tube.

[0008] Preferably, a through hole is opened on the surface of the connecting shell at a position corresponding to the sealing tube, and the sealing bead passes through the through hole and is clamped to one end of the fluid channel.

[0009] Preferably, the angle positioning assembly includes a fixed shell fixedly mounted on one side of the connecting shell, a slide is slidably connected to the inner cavity of the fixed shell, a pull rod is fixedly mounted on one side of the slide, one end of the pull rod passes through the fixed shell and extends to the outside of the fixed shell, a compression spring 2 is fixedly mounted on one side of the slide and located outside the pull rod, one end of the compression spring 2 away from the slide is fixedly connected to the inner wall of the fixed shell, a limiting assembly is arranged between the slide and the fixed shell, and a clamping assembly for positioning the rotation angle of the rotating intermediate body is arranged on one side of the slide.

[0010] Preferably, the clamping assembly includes a square clamping column fixedly mounted on one side of the skateboard, two groups of square clamping grooves are opened at one end of the rotating intermediate body, and the two groups of square clamping grooves are arranged corresponding to the main paint cylinder and the auxiliary paint cylinder, and one end of the square clamping column passes through the connecting shell and extends to the inner cavity of the connecting shell to be clamped in the inner cavity of the square clamping groove.

[0011] Preferably, a square through slot matched with the square clamping column is formed at one end of the connecting shell, and the surface of the square clamping column is slidably connected to the inner wall of the square through slot.

[0012] Preferably, the limiting assembly includes limiting rods fixedly mounted on both sides of the inner cavity of the fixed shell, limiting grooves matching the limiting rods are provided on both sides of the slide plate, and the inner wall of the limiting groove is slidably connected to the surface of the limiting rod.

[0013] Preferably, an arc-shaped groove matched with the connecting head is formed at the bottom of the connecting shell, and the surface of the connecting head is slidably connected to the inner wall of the arc-shaped groove.

[0014] Preferably, a thread groove is provided on the surface of the connector, and internal threads are provided at the bottle mouths of the main paint cylinder and the auxiliary paint cylinder. The bottle mouths of the main paint cylinder and the auxiliary paint cylinder are tightened and fixed to one end of the connector by using the internal threads and the thread groove in combination.

[0015] Preferably, the surfaces of the main paint can and the auxiliary paint can are both provided with mounting grooves, and an observation window is fixedly installed in the inner cavity of the mounting groove.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] In the utility model, two groups of paint canisters, a main paint canister and a secondary paint canister, are arranged at the bottom of the gun body. After the paint in the main paint canister is used up, the angle positioning assembly can be opened and the main paint canister and the secondary paint canister can be rotated, and the secondary paint canister can be switched to provide paint to the gun body. Compared with the traditional method of disassembling and assembling the paint canister to replace it, the utility model has the advantage of fast switching speed, can avoid long-term interruption of the painting operation due to replacement of the paint canister, can ensure the continuity of spraying, and thus improves the efficiency of paint spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the angle positioning component of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure inside the connection shell of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure inside the fixed shell of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the sealing assembly of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the fluid channel of the utility model.

[0024] In the figure: 1. gun body; 2. paint inlet pipe; 3. connecting shell; 4. rotating intermediate body; 5. fluid channel; 6. connecting head; 7. main paint cylinder; 8. auxiliary paint cylinder; 9. sealing tube; 10. top block; 11. sealing bead; 12. compression spring 1; 13. through hole; 14. fixed shell; 15. slide plate; 16. pull rod; 17. compression spring 2; 18. square clamping column; 19. square clamping groove; 20. square through groove; 21. limiting rod; 22. limiting groove; 23. arc groove; 24. threaded groove; 25. mounting groove; 26. observation window. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 6The utility model provides a metal paint spray gun, including a gun body 1, the bottom of the gun body 1 is connected to a paint inlet pipe 2, the bottom end of the paint inlet pipe 2 is connected to a connecting shell 3, the inner cavity of the connecting shell 3 is rotatably mounted with a rotating intermediate body 4, the interior of the rotating intermediate body 4 is provided with two groups of fluid channels 5 intermittently connected to the paint inlet pipe 2, and one end of each group of fluid channels 5 is provided with a connector 6, and one end of the two groups of connectors 6 are respectively threadedly connected to a main paint cylinder 7 and an auxiliary paint cylinder 8.

[0027] In the present embodiment, two sets of paint canisters, a main paint canister 7 and a sub-paint canister 8, are provided at the bottom of the gun body 1. The main paint canister 7 is used first to provide paint for the gun body 1. After the paint inside the main paint canister 7 is used up, the user can rotate the main paint canister 7 and the sub-paint canister 8 to switch the sub-paint canister 8 to provide paint for the gun body 1. In the present embodiment, two sets of fluid channels 5 are opened inside the rotating intermediate body 4, which are used to respectively connect the main paint canister 7 and the sub-paint canister 8 with the paint inlet pipe 2 to provide paint for the gun body 1.

[0028] Preferably, the bottom of the connecting shell 3 is provided with an arc groove 23 adapted to the connecting head 6, and the surface of the connecting head 6 is slidably connected to the inner wall of the arc groove 23. The surface of the connecting head 6 is provided with a thread groove 24, and the bottle mouths of the main paint cylinder 7 and the auxiliary paint cylinder 8 are provided with internal threads, and the bottle mouths of the main paint cylinder 7 and the auxiliary paint cylinder 8 are tightened and fixed to one end of the connecting head 6 through the use of the internal threads and the thread groove 24. The surfaces of the main paint cylinder 7 and the auxiliary paint cylinder 8 are provided with mounting grooves 25, and the inner cavity of the mounting groove 25 is fixedly installed with an observation window 26.

[0029] Through the setting of the arc groove 23, when switching the main paint canister 7 and the auxiliary paint canister 8, the connecting head 6 will slide in the inner cavity of the arc groove 23, which can provide a moving space for the connecting head 6. Through the setting of the threaded groove 24, the main paint canister 7 and the auxiliary paint canister 8 can be installed and tightened on the connecting head 6. Through the setting of the observation window 26, the user can easily grasp the remaining paint inside the main paint canister 7 and the auxiliary paint canister 8. The observation window 26 is installed and fixed on the surface of the main paint canister 7 and the auxiliary paint canister 8 through the installation groove 25.

[0030] Among them, one end of the connecting shell 3 is installed with an angle positioning component for positioning the switching angle when switching the main paint cylinder 7 and the auxiliary paint cylinder 8, and the angle positioning component includes a fixed shell 14 fixedly installed on one side of the connecting shell 3, and the inner cavity of the fixed shell 14 is slidably connected with a slide plate 15, and a pull rod 16 is fixedly installed on one side of the slide plate 15, and one end of the pull rod 16 passes through the fixed shell 14 and extends to the outside of the fixed shell 14, and a compression spring 17 is fixedly installed on one side of the slide plate 15 and outside the pull rod 16, and the compression spring 17 is fixedly installed on the outside of the pull rod 16. One end of 17 away from the slide plate 15 is fixedly connected to the inner wall of the fixed shell 14, and a clamping assembly for positioning the rotation angle of the rotating intermediate body 4 is provided on one side of the slide plate 15. The clamping assembly includes a square clamping column 18 fixedly installed on one side of the slide plate 15. Two groups of square clamping grooves 19 are opened at one end of the rotating intermediate body 4, and the two groups of square clamping grooves 19 are arranged corresponding to the main paint cylinder 7 and the auxiliary paint cylinder 8. One end of the square clamping column 18 penetrates the connecting shell 3 and extends to the inner cavity of the connecting shell 3 to be clamped in the inner cavity of the square clamping groove 19.

[0031] Through the setting of the angle positioning component, when switching the main paint canister 7 and the auxiliary paint canister 8, the user must first pull the pull rod 16 to the outside to disconnect the square clamping column 18 from one group of square clamping slots 19, and then the user can rotate to switch the main paint canister 7 and the auxiliary paint canister 8. After the switching is completed, the user can release the pull rod 16. At this time, the reaction force generated by the contraction of the compression spring 17 will insert the square clamping column 18 into the inner cavity of the other group of square clamping slots 19 through the slide plate 15 to clamp and position the use angle of the main paint canister 7 and the auxiliary paint canister 8.

[0032] It is worth noting that a limiting assembly is arranged between the slide plate 15 and the fixed shell 14, and the limiting assembly includes limiting rods 21 fixedly installed on both sides of the inner cavity of the fixed shell 14, and limiting grooves 22 adapted to the limiting rods 21 are opened on both sides of the slide plate 15, and the inner wall of the limiting groove 22 is slidably connected to the surface of the limiting rod 21.

[0033] By setting the limit assembly, it is possible to prevent the slide plate 15 from rotating in the inner cavity of the fixed shell 14 when the slide plate 15 is pulled to move, thereby preventing the square clamping column 18 and the square clamping groove 19 from being misaligned. When the slide plate 15 moves, the limit grooves 22 on both sides thereof will slide on the surface of the limit rod 21.

[0034] Furthermore, a square through groove 20 adapted to the square clamping column 18 is provided at one end of the connecting shell 3, and the surface of the square clamping column 18 is slidably connected to the inner wall of the square through groove 20. Through the setting of the square through groove 20, a moving space can be provided for the square clamping column 18, so that one end of the square through groove 20 can pass through the square through groove 20 and be inserted into the inner cavity of the square clamping slot 19.

[0035] Furthermore, a sealing assembly for sealing the fluid channel 5 is provided on the surface of the connecting shell 3 and at a corresponding position of the fluid channel 5. The sealing assembly includes sealing tubes 9 fixedly installed on both sides of the top of the connecting shell 3. The inner cavity of the sealing tube 9 is slidably connected with a top block 10. A sealing bead 11 is provided on one side of the top block 10. A compression spring 12 is fixedly installed on the other side of the top block 10. One end of the compression spring 12 away from the top block 10 is fixedly connected to the inner wall of the sealing tube 9. A through hole 13 is opened on the surface of the connecting shell 3 and at a corresponding position of the sealing tube 9. The sealing bead 11 passes through the through hole 13 and is clamped to one end of the fluid channel 5.

[0036] By setting the sealing assembly, when one group of paint canisters provides paint to the gun body 1, the fluid channel 5 corresponding to the other group of paint canisters will be blocked and sealed by the sealing beads 11 to prevent residual paint from flowing out of the fluid channel 5 when the paint canisters are replaced. The sealing beads 11 are pressed tightly against one end of the fluid channel 5 by the pressing force of the compression spring 12.

[0037] Although the 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 metal paint spray gun, comprising a gun body (1), characterized in that: The bottom of the gun body (1) is connected to a paint inlet pipe (2), and the bottom end of the paint inlet pipe (2) is connected to a connecting shell (3). A rotating intermediate body (4) is rotatably installed in the inner cavity of the connecting shell (3). Two groups of fluid channels (5) intermittently connected to the paint inlet pipe (2) are opened inside the rotating intermediate body (4), and one end of each group of fluid channels (5) is provided with a connector (6). One end of the two groups of connectors (6) are respectively threadedly connected to a main paint cylinder (7) and an auxiliary paint cylinder (8). One end of the connecting shell (3) is installed with an angle positioning component for positioning the switching angle when switching the main paint cylinder (7) and the auxiliary paint cylinder (8). A sealing component for sealing the fluid channel (5) is provided on the surface of the connecting shell (3) and at a corresponding position of the fluid channel (5).

2. The metal paint spray gun according to claim 1, characterized in that: The sealing assembly comprises a sealing tube (9) fixedly mounted on both sides of the top of the connecting shell (3); the inner cavity of the sealing tube (9) is slidably connected to a top block (10); a sealing bead (11) is provided on one side of the top block (10); a compression spring (12) is fixedly mounted on the other side of the top block (10); and one end of the compression spring (12) away from the top block (10) is fixedly connected to the inner wall of the sealing tube (9).

3. The metal paint spray gun according to claim 2, characterized in that: A through hole (13) is provided on the surface of the connecting shell (3) at a position corresponding to the sealing tube (9), and the sealing bead (11) passes through the through hole (13) and is clamped to one end of the fluid channel (5).

4. The metal paint spray gun according to claim 1, characterized in that: The angle positioning assembly comprises a fixed shell (14) fixedly mounted on one side of the connecting shell (3); a slide plate (15) is slidably connected to the inner cavity of the fixed shell (14); a pull rod (16) is fixedly mounted on one side of the slide plate (15); one end of the pull rod (16) passes through the fixed shell (14) and extends to the outside of the fixed shell (14); a second compression spring (17) is fixedly mounted on one side of the slide plate (15) and located outside the pull rod (16); one end of the second compression spring (17) away from the slide plate (15) is fixedly connected to the inner wall of the fixed shell (14); a limiting assembly is arranged between the slide plate (15) and the fixed shell (14); and a clamping assembly for positioning the rotation angle of the rotating intermediate body (4) is arranged on one side of the slide plate (15).

5. The metal paint spray gun according to claim 4, characterized in that: The clamping assembly comprises a square clamping column (18) fixedly mounted on one side of the slide plate (15); one end of the rotating intermediate body (4) is provided with two groups of square clamping grooves (19), and the two groups of square clamping grooves (19) are arranged corresponding to the main paint cylinder (7) and the auxiliary paint cylinder (8); one end of the square clamping column (18) penetrates the connecting shell (3) and extends to the inner cavity of the connecting shell (3) to be clamped in the inner cavity of the square clamping groove (19).

6. The metal paint spray gun according to claim 5, characterized in that: A square through slot (20) adapted to the square clamping column (18) is formed at one end of the connection shell (3), and the surface of the square clamping column (18) is slidably connected to the inner wall of the square through slot (20).

7. The metal paint spray gun according to claim 5, characterized in that: The limiting assembly comprises limiting rods (21) fixedly mounted on both sides of the inner cavity of the fixed shell (14); limiting grooves (22) matching the limiting rods (21) are provided on both sides of the slide plate (15); and the inner wall of the limiting groove (22) is slidably connected to the surface of the limiting rod (21).

8. The metal paint spray gun according to claim 1, characterized in that: The bottom of the connection shell (3) is provided with an arc-shaped groove (23) adapted to the connection head (6), and the surface of the connection head (6) is slidably connected to the inner wall of the arc-shaped groove (23).

9. The metal paint spray gun according to claim 1, characterized in that: The surface of the connecting head (6) is provided with a thread groove (24), and the bottle mouths of the main paint cylinder (7) and the auxiliary paint cylinder (8) are provided with internal threads. The bottle mouths of the main paint cylinder (7) and the auxiliary paint cylinder (8) are screwed and fixed to one end of the connecting head (6) by using the internal threads and the thread groove (24) in combination.

10. The metal paint spray gun according to claim 1, characterized in that: The surfaces of the main paint cylinder (7) and the auxiliary paint cylinder (8) are both provided with mounting grooves (25), and the inner cavity of the mounting grooves (25) is fixedly provided with an observation window (26).

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