A new decorative coating spray tool

Abstract

The utility model relates to a novel decorative coating spraying tool, adopt the mode of the socket connection bushing through the gas guide rod at the one end of the gun body main part, the outside again sets up the lock nut and fixes, this double fixed structure can effectively prevent the gas guide rod from shaking or displacement when working, ensure that the tool runs stably, the compression degree of compression spring can be changed by rotating the first adjusting knob, and then the position of the gas guide rod is fine -tuned, the coating flow from the coating tank into the spray head is accurately controlled, satisfies the diversification spraying demand, the detachable coating tank is set up at the front end of the gun body main part, and the user can quickly replace the new tank after the coating is used up, does not need the complicated dismounting and the cleaning operation, saves time and energy greatly, improves the spraying work efficiency, the sealing ring on the gas guide rod can effectively prevent the gas leakage, guarantees the gas to enter the spray head according to the predetermined path, provides the stable gas source for the coating atomization.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic tool technology, and in particular to a novel decorative coating spraying tool. Background Technology

[0002] Traditional decorative paint spraying tools, after years of development, have met basic spraying needs to a certain extent, but still reveal many problems that need to be solved in actual use. Regarding structural stability, the air guide rod fixing methods of some traditional spraying tools are relatively simple, usually employing only a simple mechanical connection, lacking effective anti-shaking and anti-displacement designs. Besides structural stability issues, ease of operation is also a major shortcoming of traditional spraying tools. The paint can replacement process for some spraying tools is cumbersome, requiring complex disassembly and cleaning before a new can can be installed. This process not only consumes a lot of time and effort, reducing work efficiency, but also easily damages tool parts during disassembly and cleaning, affecting its normal use. Furthermore, traditional tools often have inadequate designs in the adjustment devices for atomizing airflow and paint flow, and their sealing structures are imperfect, making gas leakage prone to occur during transmission. This not only wastes air resources and increases operating costs, but also affects the pressure and flow of gas entering the nozzle, thus damaging the paint atomization effect and leading to a decline in spraying quality. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a new type of decorative coating spraying tool that is stable in operation, convenient to operate, and can accurately control the spraying parameters.

[0004] To achieve the above objectives, this utility model employs a novel decorative paint spraying tool, comprising a gun body with a handle formed at the bottom. A detachable paint canister is located at the front end of the gun body, and the paint canister is connected to a nozzle via a pipe. An air guide rod is coaxially arranged between the nozzle and the gun body. A sleeve is provided at one end of the air guide rod at the nozzle. A discharge nozzle is located inside the nozzle. One end of the air guide rod is connected to the discharge nozzle inside the nozzle via the sleeve. A bushing is connected to one end of the air guide rod at the gun body. A first adjustment knob for adjusting the paint flow rate is located at the end of the gun body away from the air guide rod. The shaft end of the first adjustment knob extends into the gun body and a compression spring is provided between it and the bushing. The two ends of the compression spring abut against the bushing and the shaft end of the first adjustment knob, respectively. An annular groove is provided on the air guide rod, and a sealing ring is embedded in the annular groove. A locking nut for fixing the position of the air guide rod is also fitted on the outside of the air guide rod.

[0005] The advantages of the above structure are as follows: The air guide rod is connected to the main body of the gun using a socket-type bushing, and then secured with a locking nut on the outside. This double-fixing structure effectively prevents the air guide rod from shaking or shifting during operation, ensuring stable tool operation. Rotating the first adjustment knob changes the compression degree of the compression spring, thereby fine-tuning the position of the air guide rod and precisely controlling the paint flow rate from the paint tank to the nozzle, meeting diverse spraying needs. A detachable paint tank is located at the front of the main body of the gun, allowing users to quickly replace the paint tank when it runs out, eliminating the need for complex disassembly and cleaning operations, significantly saving time and effort, and improving spraying efficiency. The sealing ring on the air guide rod effectively prevents gas leakage, ensuring that the gas enters the nozzle along a predetermined path, providing a stable gas source for paint atomization.

[0006] This utility model further includes a trigger and a connecting rod in the main body of the gun. The trigger and the connecting rod are integrally formed, and both ends of the connecting rod are hinged to the two sides of the main body of the gun via pins. The integral forming structure of the trigger and the connecting rod significantly enhances their structural strength. The hinged connection of both ends of the connecting rod to the two sides of the main body of the gun ensures that the trigger can rotate freely and achieve smooth operation, while also providing stable support for the entire structure. This allows the force to be evenly transmitted to the main body of the gun when the trigger is under stress, further improving the stability and reliability of the tool.

[0007] This utility model is further configured with a slot at the end of the handle, into which an air inlet is embedded. The air inlet is connected to the air guide rod via an internal air passage. Connecting to an external air source via the air inlet provides power for paint spraying. The internal air passage connecting the air inlet and the air guide rod effectively reduces the risk of gas leakage during transmission.

[0008] This utility model is further configured such that a through groove is provided on the outer wall of the handle, and a second adjustment knob for adjusting the atomizing airflow is installed in the through groove. By providing a through groove on the outer wall of the handle and installing the second adjustment knob to adjust the atomizing airflow, this design layout is reasonable. Operators do not need to search for a dedicated adjustment device; when operating the device by hand, the atomizing airflow can be conveniently adjusted directly through the second adjustment knob on the outer wall of the handle, improving operational efficiency and convenience, and effectively enhancing the overall user experience. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0010] Figure 2 This is an exploded view of the air guide rod assembly according to an embodiment of this utility model.

[0011] Figure 3 This is a cross-sectional view of the overall structure of an embodiment of this utility model. Detailed Implementation

[0012] like Figures 1-3 As shown, an embodiment of this utility model provides a novel decorative coating spraying tool, including a gun body 1, a handle 2 formed at the bottom of the gun body 1, and a detachable paint tank 3 installed at the front end of the gun body 1. The paint tank 3 is connected to the nozzle 4 via a pipeline to provide paint for the spraying operation.

[0013] An air guide rod 5 is coaxially arranged between the nozzle 4 and the gun body 1. A sleeve 51 is provided at one end of the air guide rod 5 near the nozzle 4, and the sleeve 51 is connected to the discharge nozzle 41 inside the nozzle 4. A bushing 52 is connected to one end of the air guide rod 5 at the gun body 1 to adjust the paint flow rate. A first adjustment knob 6 for adjusting the paint flow rate is provided at the end of the gun body 1 away from the air guide rod 5. The shaft end of the first adjustment knob 6 extends into the gun body 1 and is provided with a compression spring 7 between it and the bushing 52. The two ends of the compression spring 7 abut against the bushing 52 and the shaft end of the first adjustment knob 6, respectively. By rotating the first adjustment knob 6 to change the compression degree of the compression spring 7, the paint flow rate from the paint tank 3 to the nozzle 4 can be precisely controlled.

[0014] To ensure the stability of the air guide rod 5 during operation, the air guide rod 5 is provided with three annular grooves, each of which is embedded with a sealing ring 53, which can effectively prevent gas leakage. At the same time, a locking nut 54 is also fitted on the outside of the air guide rod 5 to fix the position of the air guide rod 5 and prevent it from shaking or shifting.

[0015] In addition to the gas rod 5, the main body 1 of the gun body has other important structures. The main body 1 of the gun body also includes a trigger 11 and a connecting rod 12. The trigger 11 and the connecting rod 12 adopt an integral molding structure, which enhances the structural strength between the two. The two ends of the connecting rod 12 are respectively hinged to the two sides of the main body 1 of the gun body through axle pins (not shown in the figure). This hinge method not only ensures that the trigger 11 can rotate flexibly and realize smooth triggering operation, but also provides stable support for the entire structure, so that the trigger 11 can evenly transmit the force to the main body 1 of the gun body when it is subjected to force.

[0016] The handle 2 has a slot at its end, in which an air inlet 21 is embedded. The air inlet 21 is connected to the air guide rod 5 through an internal air passage. The air inlet 21 is connected to an external air source to provide power for paint spraying. The internal air passage can effectively reduce the risk of gas leakage during transmission. In addition, the outer wall of the handle 2 has a through groove, in which a second adjustment knob 22 is installed. The operator can directly adjust the atomized air flow rate through the second adjustment knob 22, which improves the efficiency and convenience of operation.

[0017] Of course, in addition to the above embodiments, this utility model may have other various embodiments. Without departing from the essential technical solution of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, and these changes or modifications are equivalent to the technical solution in this patent. Therefore, these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A novel decorative coating spraying tool, characterized in that: The device includes a gun body with a handle at its bottom and a detachable paint canister at its front end. The paint canister is connected to a nozzle via a pipe. An air guide rod is coaxially mounted between the nozzle and the gun body. The air guide rod has a sleeve at one end of the nozzle, and a discharge nozzle is located inside the nozzle. One end of the air guide rod is connected to the discharge nozzle inside the nozzle via the sleeve. A bushing is connected to the air guide rod at one end of the gun body. A first adjustment knob for adjusting the paint flow is located at the end of the gun body away from the air guide rod. The shaft end of the first adjustment knob extends into the gun body and a compression spring is located between it and the bushing. The two ends of the compression spring abut against the bushing and the shaft end of the first adjustment knob, respectively. An annular groove is provided on the air guide rod, and a sealing ring is embedded in the annular groove. A locking nut for fixing the position of the air guide rod is also fitted on the outside of the air guide rod.

2. The novel decorative coating spraying tool according to claim 1, characterized in that: The main body of the gun also includes a trigger and a connecting rod. The trigger and the connecting rod are integrally formed. The two ends of the connecting rod are respectively hinged to the two sides of the main body of the gun via pins.

3. The novel decorative coating spraying tool according to claim 1, characterized in that: The handle has a slot at its end, and an air inlet is embedded in the slot. The air inlet is connected to the air guide rod through an internal air passage.

4. The novel decorative coating spraying tool according to claim 3, characterized in that: The outer wall of the handle is provided with a through groove, and a second adjustment knob for adjusting the atomizing airflow is installed in the through groove.

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