A hand-held spray gun

Abstract

This utility model belongs to the field of spraying tool technology, and in particular relates to a handheld spray gun, including an aerosol can body, a nozzle fixedly installed at the opening at the top of the aerosol can body, an air jet assembly configured at the top of the nozzle, an upper handle inner wall covering the outer wall of a fixing base and fastened by screws, a detachable fixing frame fitted on the outside of the aerosol can body, an installation groove adapted to the aerosol can body on the end face of the fixing frame, foldable side plates on both sides of the fixing frame, the side plates being rigidly connected to the fixing base by a connecting frame, the two ends of the connecting frame being bolted to the fixing base and the fixing frame respectively, and an air jet nozzle detachably connected to the side of the fixing base located below the upper handle, the internal channel of the air jet nozzle being in communication with the fixing base; compared with the prior art, this utility model, while ensuring airtightness, also has the functions of labor-saving operation, safety protection, flexible adjustment and portable hanging, significantly improving the efficiency of spraying operations and the comfort of operation.

Description

Technical Field

[0001] This utility model relates to the field of spraying tool technology, and more specifically, to a handheld spray gun. Background Technology

[0002] A spray gun is an important painting tool that can spray paint in a mist to achieve uniform coloring. It is widely used in the cosmetics industry, interior design, outdoor advertising, publishing and printing, and film and animation.

[0003] Currently, the most common way to use aerosol cans on the market is to hold the can and press the nozzle to spray. This method can easily cause hand fatigue when used for a long time or when precise control of the spray direction is required, and it lacks an effective mechanism to prevent misoperation.

[0004] Therefore, it is particularly important to develop a new type of handheld aerosol can tool that can both improve user comfort and prevent accidental presses. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a handheld spray gun that can improve the comfort of use and prevent accidental pressing.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A handheld spray gun includes an aerosol can body, a nozzle fixedly mounted at the opening at the top of the aerosol can body, and an air jet assembly disposed at the top of the nozzle.

[0008] The jet assembly includes a fixed base, an upper handle, a lower handle, a fixed frame, a pressure rod, and a pressure head. The fixed base is fixedly installed above the nozzle and maintains communication with the aerosol can body. The pressure rod is slidably installed inside the fixed base. A spring is sleeved on the outer periphery of the pressure rod. The lower end of the pressure rod is connected to the pressure head, which extends into the nozzle.

[0009] The inner wall of the upper handle covers the outer wall of the fixing base and is fastened together with screws. The lower handle is symmetrically arranged with the upper handle. A pivot is installed in the corresponding connecting hole on the side wall of both handles. The end of the pivot is fixed by a retaining spring.

[0010] The mounting bracket has an installation slot on its end face for the aerosol can body to pass through.

[0011] The mounting bracket has foldable side plates on both sides, which are rigidly connected to the mounting base via a connecting frame. Both ends of the connecting frame are bolted to the mounting base and the mounting bracket, respectively.

[0012] The mounting base is located on the side below the upper handle and is detachably connected to the air nozzle. The internal channel of the air nozzle is in communication with the mounting base.

[0013] The present invention is further configured such that: a sliding groove communicating with the mounting groove is formed on the surface of the fixing frame, and a connecting mechanism located on one side of the sliding groove is provided on the upper end face of the fixing frame.

[0014] The connecting mechanism includes a base and connecting rods symmetrically arranged on both sides of the base. A rotating rod is rotatably connected to the side wall of the base, and two connecting rods are connected to each end of the rotating rod.

[0015] A second spring is sleeved on the outer periphery of the connecting rod. The two ends of the second spring have limiting rods. A snap-fit ​​rod with a rotating plate is provided between the two connecting rods. The outer edge of the rotating plate forms an abutment fit with the fixed seat on the other side of the slide groove.

[0016] The present invention is further configured such that: the inner wall of the lower handle is provided with a stop block with a limiting groove, and a handle limiting baffle is embedded in the limiting groove.

[0017] A rotating shaft 2 is provided in the mounting hole corresponding to the upper handle. One end of the handle limiting baffle is sleeved on the outer circumference of the rotating shaft 2, and the end of the rotating shaft 2 passes through the upper handle and is fixed by the snap ring 2.

[0018] The present invention is further configured such that: the jet nozzle includes a stainless steel rod, a connector and an adjustable angle hose, the stainless steel rod is connected to the fixed seat by a thread, one end of the connector is connected to the stainless steel rod, the other end of the connector is connected to the adjustable angle hose, one end of the stainless steel rod placed in the fixed seat is provided with a flexible conduit, and the other end of the flexible conduit is connected to the pressure head.

[0019] The present invention is further configured such that: each of the two side plates has a docking hole, a hook is provided in the docking hole, and a hanging rope is connected between the two hooks.

[0020] Compared with the shortcomings of the prior art, the beneficial effects of this utility model are as follows:

[0021] The spray nozzle can be operated with a single hand by pressing a lever and spring, reducing the force required to directly press the nozzle. Combined with the extended spray distance, it allows for standing operation. The swivel connection between the upper and lower handles makes the grip more ergonomic. The handle limit baffle and swivel form a double safety mechanism to effectively prevent misoperation. The adjustable angle hose, with its hinge structure and stainless steel guide tube, allows for multi-angle spray adjustment to meet different work needs. The elastic hooks and hanging ropes on the folding plates on both sides of the mounting bracket make it easy to carry and use in various scenarios. The detachable mounting bracket and mounting slot allow for quick disassembly and maintenance. The overall structure ensures airtightness while also providing labor-saving operation, safety protection, flexible adjustment, and portable hanging functions, significantly improving spraying efficiency and operating comfort. Attached Figure Description

[0022] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the jet assembly in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the internal structure of the handle in an embodiment of the present utility model.

[0025] 1. Aerosol can body; 2. Nozzle; 3. Jet assembly; 4. Mounting base; 5. Upper handle; 6. Lower handle; 7. Mounting frame; 8. Pressure rod; 9. Pressure head; 10. Spring 1; 11. Rotating shaft 1; 12. Snap ring 1; 13. Connecting frame; 14. Side plate; 15. Jet nozzle; 16. Base; 17. Connecting rod; 18. Rotating rod; 19. Spring 2; 20. Limiting rod; 21. Rotating plate; 22. Snap rod; 23. Stop block; 24. Handle limiting baffle; 25. Rotating shaft 2; 26. Snap ring 2; 27. Stainless steel rod body; 28. Connector; 29. ​​Adjustable angle hose; 30. Flexible conduit; 31. Hook; 32. Hanging rope. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Working principle: When in use, adjust the handle limit baffle 24 to the unrestricted position. When gripping the upper handle 5 and the lower handle 6, the lower handle 6 rotates and presses down through the pivot 11, which drives the pressure rod 8 to compress the spring 10, causing the pressure head 9 to move down and act on the inside of the nozzle 2 to start spraying. The mist enters the air nozzle 15 through the channel of the fixed seat 4, and is output in a directional manner through the flexible conduit 30, the stainless steel rod 27 and the adjustable angle hose 29. The user can adjust the hose angle to achieve precise spraying.

[0029] After releasing the handle, the spring 10 returns to its original position, causing the pressure rod 8 and the pressure head 9 to return to their original positions and close the nozzle 2. When finished using the product, the handle limit baffle 24 is engaged with the limit slot of the lower handle 6 stop block 23 to lock the handle in the open / closed state and prevent accidental contact with the pressure rod 8.

[0030] The entire system is activated by pressing a lever 8 in conjunction with a spring 10 to start and stop spraying. Combined with an adjustable-angle hose 29, it enables multi-directional spraying. Simultaneously, a safety locking function is achieved through a handle limit baffle 24 and a stop block 23.

[0031] like Figures 1 to 3 As shown,

[0032] It includes an aerosol can body 1, a nozzle 2 is fixedly installed at the opening at the top of the aerosol can body 1, and an air jet assembly 3 is configured on the top of the nozzle 2 to spray out the liquid inside the aerosol can body 1 through the air jet assembly 3.

[0033] The jet assembly 3 includes a fixed base 4, an upper handle 5, a lower handle 6, a fixed bracket 7, a pressure rod 8, and a pressure head 9. The fixed base 4 is fixedly installed above the nozzle 2 and keeps in communication with the aerosol can body 1, so that the liquid in the aerosol can body 1 can be sprayed out when in use.

[0034] The surface of the fixing frame 7 is provided with a sliding groove that communicates with the mounting groove. The upper end face of the fixing frame 7 is provided with a connecting mechanism located on one side of the sliding groove. The fixing frame 7 is fixed by the connecting mechanism to prevent the fixing frame 7 from moving.

[0035] The connecting mechanism includes a base 16 and connecting rods 17 symmetrically arranged on both sides of the base 16. A rotating rod 18 is rotatably connected to the side wall of the base 16. The two ends of the rotating rod 18 are respectively connected to the two connecting rods 17. A second spring 19 is sleeved on the outer peripheral wall of the connecting rod 17. The two ends of the second spring 19 have limiting rods 20. A snap-fit ​​rod 22 with a rotating plate 21 is provided between the two connecting rods 17. The outer edge of the rotating plate 21 forms an abutment fit with the fixed seat 4 on the other side of the slide groove.

[0036] When loading and unloading aerosol cans, the rotating rod 18 drives the two connecting rods 17 to move in opposite directions, compressing the second spring 19 to generate buffer resistance. The rotating plate 21 on the locking rod 22 elastically abuts against the fixed seat 4 as the connecting rod 17 moves, and the rebound force of the second spring 19 locks the aerosol can in the predetermined position of the slide groove. At the same time, the limiting block restricts the stroke of the connecting rod 17 to prevent overload. The extension and retraction characteristics of the second spring 19 and the friction positioning of the rotating plate 21 realize the gradual locking and rapid release of the aerosol can in the slide groove of the fixed frame 7, ensuring a smooth and reliable loading and unloading process.

[0037] The pressure rod 8 is slidably disposed inside the fixed base 4. A spring 10 is sleeved on the outer periphery of the pressure rod 8. The lower end of the pressure rod 8 is connected to the pressure head 9, which extends into the nozzle 2 to deliver the liquid placed in the aerosol can body 1.

[0038] The inner wall of the upper handle 5 covers the outer wall of the fixing seat 4 and is fastened with screws. The lower handle 6 is symmetrically arranged with the upper handle 5. The connecting holes on the side walls of the two handles are equipped with a rotating shaft 11. The end of the rotating shaft 11 is fixed by a snap ring 12 to realize the function of rotating and pressing down.

[0039] The lower handle 6 has a stop block 23 with a limiting slot on its inner wall. An adjustable handle limiting baffle 24 is embedded in the limiting slot. A rotating shaft 25 is provided in the corresponding mounting hole on the outer wall of the upper handle 5. One end of the handle limiting baffle 24 is sleeved on the outer circumference of the rotating shaft 25. The end of the rotating shaft 25 passes through the upper handle 5 and is fixed by a retaining spring 26. This is used to limit the position of the lower handle 6 when not in use and prevent accidental pressing.

[0040] The end face of the fixing frame 7 is provided with an installation groove through which the aerosol can body 1 passes. The fixing frame 7 is provided with foldable side plates 14 on both sides. The side plates 14 are rigidly connected to the fixing base 4 through a connecting frame 13. The side walls of the two side plates 14 are provided with docking holes. The docking holes have hooks 31. The two hooks 31 are connected with a hanging rope 32 for easy carrying and hanging by the user.

[0041] The two ends of the connecting bracket 13 are bolted to the fixed base 4 and the fixed bracket 7 respectively. The fixed base 4 is located on the side below the upper handle 5 and is detachably connected to the air nozzle 15. The internal channel of the air nozzle 15 is connected to the fixed base 4.

[0042] The nozzle 15 includes a stainless steel rod 27, a connector 28, and an adjustable angle hose 29. The stainless steel rod 27 is connected to the fixed base 4 by threads, allowing the operator to stand and operate it, which increases the spraying distance. It can also be disassembled for use or storage.

[0043] One end of connector 28 is connected to stainless steel rod 27, and the other end of connector 28 is connected to adjustable angle hose. One end of stainless steel rod 27, which is placed in fixed seat 4, is provided with flexible conduit 30. The other end of flexible conduit 30 is connected to pressure head 9. The adjustable angle hose can be manually bent to the required angle to achieve multi-angle spraying and extend the spraying distance.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A handheld spray gun, comprising an aerosol can body (1), characterized in that: A nozzle (2) is fixedly installed at the opening above the aerosol can body (1), and an air jet assembly (3) is configured on the top of the nozzle (2). The jet assembly (3) includes a fixed base (4), an upper handle (5), a lower handle (6), a fixed frame (7), a pressure rod (8), and a pressure head (9). The fixed base (4) is fixedly installed above the nozzle (2) and maintains communication with the aerosol can body (1). The pressure rod (8) is slidably installed inside the fixed base (4). A spring (10) is sleeved on the outer periphery of the pressure rod (8). The lower end of the pressure rod (8) is connected to the pressure head (9), and the pressure head (9) extends into the nozzle (2). The inner wall of the upper handle (5) covers the outer wall of the fixing seat (4) and is fastened with screws. The lower handle (6) is symmetrically arranged with the upper handle (5). The connecting holes on the side walls of the two handles are provided with a rotating shaft (11). The end of the rotating shaft (11) is fixed by a retaining spring (12). The end face of the fixing bracket (7) is provided with an installation groove for the aerosol can body (1) to pass through. The fixing frame (7) has foldable side plates (14) on both sides. The side plates (14) are rigidly connected to the fixing seat (4) through a connecting frame (13). The two ends of the connecting frame (13) are bolted to the fixing seat (4) and the fixing frame (7) respectively. The mounting base (4) is located on the side below the upper handle (5) and is detachably connected to the nozzle (15). The internal channel of the nozzle (15) is connected to the mounting base (4).

2. A handheld spray gun according to claim 1, characterized in that: The surface of the fixing frame (7) is provided with a sliding groove that communicates with the mounting groove, and the upper end face of the fixing frame (7) is provided with a connecting mechanism located on one side of the sliding groove. The connecting mechanism includes a base (16) and connecting rods (17) symmetrically arranged on both sides of the base (16). A rotating rod (18) is rotatably connected to the side wall of the base (16), and the two ends of the rotating rod (18) are respectively connected to the two connecting rods (17). A second spring (19) is sleeved on the outer periphery of the connecting rod (17). The two ends of the second spring (19) have limiting rods (20). A snap-fit ​​rod (22) with a rotating plate (21) is provided between the two connecting rods (17). The outer edge of the rotating plate (21) forms an abutment fit with the fixed seat (4) on the other side of the slide groove.

3. A handheld spray gun according to claim 1, characterized in that: The lower handle (6) has a stop block (23) with a limiting slot on its inner wall, and an adjustable handle limiting baffle (24) is embedded in the limiting slot. The upper handle (5) has a corresponding mounting hole on its outer wall with a rotating shaft (25). One end of the handle limiting baffle (24) is sleeved on the outer circumference of the rotating shaft (25). The end of the rotating shaft (25) passes through the upper handle (5) and is fixed by the snap ring (26).

4. A handheld spray gun according to claim 1, characterized in that: The jet nozzle (15) includes a stainless steel rod (27), a connector (28) and an adjustable angle hose (29). The stainless steel rod (27) is connected to the fixed seat (4) by a thread. One end of the connector (28) is connected to the stainless steel rod (27), and the other end of the connector (28) is connected to the adjustable angle hose. One end of the stainless steel rod (27) placed in the fixed seat (4) is provided with a flexible conduit (30), and the other end of the flexible conduit (30) is connected to the pressure head (9).

5. A handheld spray gun according to claim 1, characterized in that: Both side plates (14) have docking holes on their side walls, and hooks (31) are provided in the docking holes. A hanging rope (32) is connected between the two hooks (31).

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