A spraying device for a rust-proof coating on the inner wall of a teapot
By designing a rust-proof coating spraying device for the inner wall of a teapot, and utilizing a motor-driven pulley linked to a V-belt screw rod and clamping mechanism, the problems of low efficiency and uneven coating in traditional manual spraying are solved, achieving uniform spraying and rapid drying, thus improving the lifespan of the teapot and the taste of the water.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGRAO FUYING CRAFT PRODUCTS CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional rust-proof coating spraying on the inner wall of teapots relies on manual operation, which is inefficient and results in uneven coating distribution, affecting the lifespan of the teapot and the taste of the water.
Design a spraying device for anti-rust coating on the inner wall of a teapot. The device uses a motor-driven pulley and a V-belt-linked screw rod, combined with a clamping mechanism and a warm air blower, to achieve uniform spraying and rapid drying.
It improves spraying efficiency, ensures coating uniformity and stability, shortens processing time, and enhances coating adhesion and teapot lifespan.
Smart Images

Figure CN224486462U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-rust coating spraying technology, and in particular to a spraying device for anti-rust coating on the inner wall of a teapot. Background Technology
[0002] Rust-preventive coating spraying is a process that involves spraying a dense, uniform protective film onto a metal surface to effectively isolate it from oxygen, moisture, and various corrosive media (such as salt spray, acids, and alkalis). This process not only significantly slows down or prevents the oxidation and corrosion of metals but also improves the durability and service life of metal structural components.
[0003] Teapots, a common household water-drinking tool, are widely used for boiling water and brewing tea. They are not only practical kitchen utensils but also often seen as a form of cultural and artistic expression. When teapots are made of iron, they face the problem of reacting with water and oxygen in the air to form iron oxide. However, traditional rust-proof coating spraying usually relies on manual operation, which is not only inefficient but also prone to uneven coating distribution, thus affecting the rust-proof effect. Over time, insufficient coating may deteriorate the taste of the water, giving it a metallic taste, and also shorten the lifespan of the teapot.
[0004] Therefore, it is necessary to design a spraying device for applying an anti-rust coating to the inner wall of a teapot in order to solve the above-mentioned technical problems. Utility Model Content
[0005] To overcome the shortcomings of iron teapots, such as easy oxidation of the inner wall leading to decreased strength, shortened lifespan, and low efficiency of manual spraying, the technical problem is to provide a spraying device for an anti-rust coating on the inner wall of a teapot.
[0006] This utility model provides a spraying device for applying an anti-rust coating to the inner wall of a teapot, comprising a fixed frame, a support column, a motor, a snap-fit block, a pulley, a connecting column, a V-belt, a spiral rod, a nozzle, a diaphragm pump, a conveying pipe, a paint storage tank, and a suction pipe. The support column is fixedly connected to the left side of the fixed frame, and the motor is fixedly connected to the middle of the support column. A snap-fit block is rotatably attached to the top of the support column. A pulley is fixedly connected to the output shaft of the motor. A connecting column is fixedly connected to the right side of the snap-fit block. Another pulley is rotatably connected to the top of the connecting column, and a V-belt is wound between the two pulleys. A spiral rod is threadedly connected to the middle of the pulley on the connecting column. The spiral rod is slidably snapped into the connecting column. A nozzle is connected and communicates with the bottom of the spiral rod. A diaphragm pump is fixedly connected to the rear side of the fixed frame. A conveying pipe is connected and communicates with the left side of the diaphragm pump and the top of the spiral rod. A paint storage tank is placed on the right side of the fixed frame. A suction pipe is threadedly connected and communicates with the rear side of the paint storage tank and the right side of the diaphragm pump.
[0007] Furthermore, it also includes a clamping mechanism, which includes a positioning rod, a clamping block, a spring, and a handle. Positioning rods are fixedly connected to the left and right sides of the fixed frame. Clamping blocks are slidably connected between the two positioning rods on the same side. Springs are connected between the two positioning rods and the clamping blocks. Each spring is sleeved on the corresponding positioning rod. A handle is fixedly connected to one side of each of the two clamping blocks.
[0008] Furthermore, it also includes valves, with the suction pipe connected to and connected to the paint storage tank via valves.
[0009] Furthermore, it also includes a heater, which is fixedly connected to the lower right side of the snap-fit block.
[0010] Furthermore, the feed tube is made of silicone.
[0011] Furthermore, the screw has a through hole inside, through which the anti-rust paint is delivered to the nozzle.
[0012] The beneficial effects are as follows: 1. This utility model uses a motor to drive a pulley connected to a V-belt, which drives the screw rod and nozzle to move downward at a uniform speed, thereby achieving uniform and continuous spraying of the inner wall of the teapot, improving spraying efficiency, and significantly reducing the occurrence of defects such as uneven spraying or missed spraying.
[0013] 2. This utility model uses a clamping mechanism that combines a clamping block and a spring to automatically clamp and fix the teapot under the spring's reset action, effectively preventing the teapot from shifting or tilting due to vibration or external force during the spraying process, thus ensuring the stability of the spraying process.
[0014] 3. This utility model uses a portable warm air blower to quickly deliver hot air to the teapot after spraying, which accelerates the drying and curing process of the coating, significantly shortens the overall processing time, improves production efficiency, and helps to enhance the adhesion of the coating and improve the quality of the final product. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0016] Figure 2 This is a three-dimensional structural diagram of the components of this utility model, including the fixing frame, support column, and motor.
[0017] Figure 3 This is a partial cross-sectional view of the paint storage tank, extraction pipe, valves, and other components of this utility model.
[0018] Figure 4 This is a three-dimensional structural diagram of the positioning rod, clamping block, and spring components of this utility model.
[0019] Figure 5This is a partial sectional view of the snap-fit block, connecting column, and heater of this utility model. The component names and numbers in the figure are as follows: 1_fixed frame, 2_support column, 3_motor, 4_Snap-fit block, 5_pulley, 6_connecting column, 7_V-belt, 8_screw rod, 9_nozzle, 10_diaphragm pump, 11_feeding pipe, 12_paint storage tank, 13_extraction pipe, 14_valve, 15_positioning rod, 16_clamping block, 17_spring, 18_handle, 19_heater. Detailed Implementation
[0020] The preferred technical solution of this utility model will be described in detail below with reference to the accompanying drawings.
[0021] Example: A spraying device for applying an anti-rust coating to the inner wall of a teapot, such as... Figures 1-5 As shown, the system includes a fixed frame 1, a support column 2, a motor 3, a snap-fit block 4, a pulley 5, a connecting column 6, a V-belt 7, a screw rod 8, a nozzle 9, a diaphragm pump 10, a conveying pipe 11, a paint storage tank 12, and a suction pipe 13. The support column 2 is welded to the upper left side of the fixed frame 1. The motor 3 is mounted on the middle of the support column 2 via screws. The snap-fit block 4 is rotatably mounted on the top of the support column 2. The pulley 5 is welded to the output shaft of the motor 3. The connecting column 6 is welded to the right side of the snap-fit block 4. Another pulley 5 is rotatably connected to the top of the connecting column 6. A V-belt 7 is wound between the two pulleys 5. The pulley 5 on the connecting column 6... The screw rod 8 is threadedly connected to the connecting post 6. The screw rod 8 is slidably engaged with the connecting post 6. The bottom of the screw rod 8 is connected to and communicates with the nozzle 9. A through hole is opened inside the screw rod 8, through which the anti-rust paint is delivered to the nozzle 9. The diaphragm pump 10 is installed on the rear side of the fixing frame 1 by screws. The left side of the diaphragm pump 10 is connected to and communicates with the top of the screw rod 8 through the conveying pipe 11. The conveying pipe 11 is made of silicone, which makes the conveying pipe easy to bend and operate. The paint storage tank 12 is placed on the upper right side of the fixing frame 1. The rear side of the paint storage tank 12 is threadedly connected to and communicates with the right side of the diaphragm pump 10 through the extraction pipe 13.
[0022] like Figure 1 and Figure 4 As shown, it also includes a clamping mechanism, which includes a positioning rod 15, a clamping block 16, a spring 17, and a handle 18. The positioning rods 15 are symmetrically distributed and welded on the left and right sides and vertically. The clamping blocks 16 are slidably connected between the two positioning rods 15 on the same side. The springs 17 are connected between the two positioning rods 15 and the clamping blocks 16. Each spring 17 is sleeved on the corresponding positioning rod 15. The handle 18 is welded to the side of the two clamping blocks 16 that are far apart from each other.
[0023] When using this device to spray an anti-rust coating on the inner wall of a teapot, the operator first places the device on a level surface to ensure it is stable. Then, the clamping block 16 is pulled to the side furthest from the teapot. At this time, the spring 17 is in a stretched state. The teapot is then placed stably on the fixing frame 1, and the clamping block 16 is released. Under the reset action of the spring 17, the clamping block 16 automatically returns to its original position and engages with the teapot, forming a stable clamping state. This effectively prevents the teapot from shaking or shifting during subsequent spraying operations. Afterwards, the diaphragm pump 10 and the motor 3 are started. The diaphragm pump 10 continuously and evenly pumps the paint from the paint storage tank 12 to the conveying pipe 11 through the extraction pipe 13, and then the paint is conveyed by the conveying pipe 11 to the screw rod 8. The paint is then transported by the screw rod... 8. The paint is delivered to the nozzle 9. The diaphragm pump 10 ensures uniform paint supply and stable pressure during the spraying process, thereby ensuring the consistency and continuity of the spraying quality. At the same time, the output shaft of the motor 3 rotates in the forward direction, driving the corresponding pulley 5 to rotate. Through the transmission action of the triangular belt 7, the power is transmitted to another pulley 5, and through the threaded connection, the screw rod 8 and the nozzle 9 move smoothly downward, thereby achieving a uniform and continuous spraying operation on the inner wall of the teapot. After the spraying is completed, the diaphragm pump 10 is turned off to stop the paint supply. Then, the output shaft of the motor 3 rotates in the reverse direction, driving the screw rod 8 to move smoothly upward, so that the nozzle 9 gradually detaches from the inner wall of the teapot. After the nozzle 9 is completely removed, the motor 3 is turned off, the clamping block 16 is pulled open, and the teapot can be taken out.
[0024] like Figure 1 and Figure 5 As shown, it also includes a heater 19, which is installed on the lower right side of the snap-fit block 4 by screws.
[0025] When the anti-rust coating needs to be dried quickly, first turn the locking block 4 counterclockwise after turning off the motor 3 to move the heater 19 directly above the teapot, and then turn on the heater 19. The hot air blown out by the heater 19 can accelerate the air flow on the coating surface and the surrounding environment, which helps to improve the adhesion of the coating and the final drying quality.
[0026] like Figure 2 and Figure 3 As shown, it also includes a valve 14, and the material extraction pipe 13 is connected to and communicates with the paint storage tank 12 at the connection point.
[0027] When it is necessary to replace the gas storage tank, first ensure that the diaphragm pump 10 is in the off state. Then, turn the valve 14 forward to block the connection channel between the extraction pipe 13 and the paint storage tank 12. Next, turn the old paint storage tank 12 forward to remove it from the fixing frame 1. Then, place the new paint storage tank 12 on the fixing frame 1 and turn it in the reverse direction to make it tightly connected to the extraction pipe 13 through the thread. Finally, turn the valve 14 in the reverse direction again to connect the extraction pipe 13 with the new paint storage tank 12 to complete the replacement operation.
[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A spraying device for applying an anti-rust coating to the inner wall of a teapot, characterized in that, The system includes a fixed frame (1), a support column (2), a motor (3), a snap-fit block (4), a pulley (5), a connecting column (6), a V-belt (7), a screw rod (8), a nozzle (9), a diaphragm pump (10), a conveying pipe (11), a paint storage tank (12), and a suction pipe (13). The fixed frame (1) is fixedly connected to the support column (2) on its left side. The support column (2) is fixedly connected to the motor (3) in its middle. The top of the support column (2) is rotatably connected to the snap-fit block (4). The output shaft of the motor (3) is fixedly connected to the pulley (5). The snap-fit block (4) is fixedly connected to the connecting column (6) on its right side. The top of the connecting column (6) is rotatably connected to... Another pulley (5) is connected to a V-belt (7) between the two pulleys (5). A screw rod (8) is threadedly connected to the middle of the pulley (5) on the connecting column (6). The screw rod (8) is slidably engaged with the connecting column (6). A nozzle (9) is connected and communicated to the bottom of the screw rod (8). A diaphragm pump (10) is fixedly connected to the rear side of the fixed frame (1). A conveying pipe (11) is connected and communicated between the left side of the diaphragm pump (10) and the top of the screw rod (8). A paint storage tank (12) is placed on the right side of the fixed frame (1). A suction pipe (13) is threadedly connected and communicated between the rear side of the paint storage tank (12) and the right side of the diaphragm pump (10).
2. The spraying device for applying an anti-rust coating to the inner wall of a teapot as described in claim 1, characterized in that, It also includes a clamping mechanism, which includes a positioning rod (15), a clamping block (16), a spring (17) and a handle (18). The positioning rod (15) is fixedly connected to the left and right sides of the fixed frame (1). The clamping block (16) is slidably connected between the two positioning rods (15) on the same side. The spring (17) is connected between the two positioning rods (15) and the clamping block (16). Each spring (17) is sleeved on the corresponding positioning rod (15). The handle (18) is fixedly connected to one side of the two clamping blocks (16).
3. The spraying device for applying an anti-rust coating to the inner wall of a teapot as described in claim 2, characterized in that, It also includes a valve (14), and the valve (14) is fixedly connected at the connection between the material extraction pipe (13) and the paint storage tank (12).
4. The spraying device for applying an anti-rust coating to the inner wall of a teapot as described in claim 3, characterized in that, It also includes a heater (19), and the heater (19) is fixedly connected to the right side of the snap-fit block (4).
5. The spraying device for applying an anti-rust coating to the inner wall of a teapot as described in claim 4, characterized in that, The feed tube (11) is made of silicone.
6. The spraying device for applying an anti-rust coating to the inner wall of a teapot as described in claim 5, characterized in that, The screw rod (8) has a through hole inside, through which the anti-rust paint is delivered to the nozzle (9).