Antistatic liquid spraying device with self-cleaning function
Patent Information
- Application Number
- CN202521970611.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-14
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-09-14
AI Technical Summary
[0003]在静电喷涂作业中,为避免抗静电液中的固体杂质导致喷枪堵塞损坏,通常在喷枪与供液管体连接处设置过滤网结构,然而,在实际使用过程中,管体内部的滤网容易发生堵塞,进而影响喷涂工作的连贯性和喷涂效率
[0011] Compared with the prior art, the present invention has the following advantages: When the filter screen plate is clogged, as the antistatic liquid continues to flow, its impact force pushes the slider on the mounting rod to slide in the spiral guide groove of the rotating rod, thereby driving the rotating rod and the cleaning plate to rotate, cleaning the impurities on the surface of the filter screen plate. After cleaning, the elastic force of the first spring causes the filter screen plate to automatically reset, achieving the effect of automatically cleaning the filter screen plate and ensuring the continuous high efficiency of filtration.
Smart Images

Figure CN224657031U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of antistatic liquid spraying equipment, specifically to an antistatic liquid spraying equipment with self-cleaning function. Background Technology
[0002] Antistatic liquid spraying equipment is a device specifically designed to uniformly spray antistatic liquid onto the surface of various materials. Its main purpose is to help eliminate static electricity and prevent problems such as dust adsorption and electric shock caused by static electricity, thereby improving product quality and safety.
[0003] In electrostatic spraying operations, to prevent solid impurities in the antistatic liquid from clogging and damaging the spray gun, a filter screen is usually installed at the connection between the spray gun and the liquid supply pipe. However, in actual use, the filter screen inside the pipe is prone to clogging, which in turn affects the continuity and efficiency of the spraying work. Utility Model Content
[0004] The purpose of this invention is to provide an antistatic liquid spraying device with self-cleaning function to solve the above-mentioned technical problems.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: An antistatic liquid spraying device with self-cleaning function includes a base, on which a control panel and a liquid storage tank are respectively installed at both ends. The liquid storage tank is connected to an outlet pipe. One end of the outlet pipe is threadedly connected to a filter pipe via a rotary joint, and the other end of the filter pipe is also threadedly connected to a spray gun via a rotary joint. An inlet is provided at the top of the liquid storage tank. A filter screen plate is slidably installed inside the filter pipe. A self-cleaning component for cleaning and preventing clogging of the filter screen plate is also provided inside the filter pipe. The self-cleaning component includes a limiting ring located at one end inside the filter pipe. Multiple sets of guide rods slide around and pass through the limiting ring. The other end of each guide rod is connected to the edge of the filter screen plate. A first spring is provided between the filter screen plate and the limiting ring. Limit blocks are fixed to the ends of the guide rods near the limiting ring.
[0006] Preferably, the self-cleaning component further includes a rotating rod and a mounting rod. The rotating rod is rotatably connected to the center of the filter plate, and one end of the rotating rod penetrates the interior of the filter plate to install a cleaning plate. One end of the rotating rod has a spiral guide groove. The mounting rod is located inside the filter tube on one side, and one end of the mounting rod has a slider that is slidably connected to the guide groove.
[0007] Preferably, a scraper is slidably connected inside the cleaning plate, and a second spring is provided between the scraper and the inside of the cleaning plate.
[0008] Preferably, a slip ring is slidably connected to the outer wall of the rotary joint, a third spring is provided between the slip ring and the rotary joint, a limit rod is fixedly connected to one end of the slip ring, and limit slots are correspondingly opened at both ends of the filter tube.
[0009] Preferably, a connecting ring is fixedly connected to the top of the inside of the feed inlet, and a wire basket is inserted into the connecting ring, with a handle on the wire basket.
[0010] Preferably, a stirring rod is rotatably installed inside the liquid storage tank, and a stirring motor that is drively connected to the stirring rod is installed at the top of the liquid storage tank.
[0011] Compared with the prior art, the present invention has the following advantages: When the filter screen plate is clogged, as the antistatic liquid continues to flow, its impact force pushes the slider on the mounting rod to slide in the spiral guide groove of the rotating rod, thereby driving the rotating rod and the cleaning plate to rotate, cleaning the impurities on the surface of the filter screen plate. After cleaning, the elastic force of the first spring causes the filter screen plate to automatically reset, achieving the effect of automatically cleaning the filter screen plate and ensuring the continuous high efficiency of filtration. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connection structure of the liquid outlet pipe, filter pipe and spray gun in this utility model. Figure 3 This is a cross-sectional view of the connection structure of the liquid outlet pipe, filter pipe and spray gun in this utility model; Figure 4 This is a cross-sectional view of the filter tube in this utility model; Figure 5 This is a schematic diagram of the liquid storage tank in this utility model.
[0013] In the diagram: 1. Base; 2. Control panel; 3. Liquid storage tank; 4. Liquid outlet pipe; 5. Rotary joint; 6. Filter pipe; 7. Spray gun; 8. Filter screen plate; 9. Limiting ring; 10. Guide rod; 11. First spring; 12. Rotating rod; 13. Cleaning plate; 14. Guide groove; 15. Mounting rod; 16. Sliding block; 17. Second spring; 18. Scraper; 19. Slip ring; 20. Third spring; 21. Limiting rod; 22. Feed inlet; 23. Insertion ring; 24. Wire basket; 25. Stirring motor; 26. Stirring rod. Detailed Implementation
[0014] 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.
[0015] Please see Figures 1-5 As shown, the present invention proposes an antistatic liquid spraying device with self-cleaning function, including a base 1, with a control panel 2 and a liquid storage tank 3 installed at both ends of the base 1 respectively. The liquid storage tank 3 is connected to an outlet pipe 4. One end of the outlet pipe 4 is threadedly connected to a filter pipe 6 through a rotary joint 5, and the other end of the filter pipe 6 is also threadedly connected to a spray gun 7 through a rotary joint 5. The top of the liquid storage tank 3 is provided with a feed port 22. A filter screen plate 8 is slidably provided inside the filter pipe 6. The filter pipe 6 is also provided with a self-cleaning component for cleaning and preventing clogging of the filter screen plate 8.
[0016] The self-cleaning component includes a limiting ring 9, which is located inside one end of the filter tube 6. Multiple sets of guide rods 10 slide around the inside of the limiting ring 9. The other end of the guide rod 10 is connected to the edge of the filter plate 8. A first spring 11 is provided between the filter plate 8 and the limiting ring 9. Limiting blocks are fixed to the ends of the guide rods 10 near the limiting ring 9.
[0017] The self-cleaning assembly also includes a rotating rod 12 and a mounting rod 15. The rotating rod 12 is rotatably connected to the center of the filter plate 8, and one end of the rotating rod 12 passes through the interior of the filter plate 8 to install a cleaning plate 13. A spiral guide groove 14 is provided at one end of the rotating rod 12. The mounting rod 15 is located inside the filter tube 6 on one side, and a slider 16 is provided at one end of the mounting rod 15 to slide in connection with the guide groove 14. The control panel 2 is located at one end of the base 1 and is used to control the operating parameters of the equipment, such as spraying pressure and speed, to achieve precise spraying control. The liquid storage tank 3 is used to store antistatic liquid, and its top is provided with a feed port 22 for easy replenishment of antistatic liquid. The liquid outlet pipe 4 is used to connect the liquid storage tank 3 and the spray gun 7, and is responsible for delivering the antistatic liquid to the spray gun 7. The filter tube 6 is located between the liquid outlet pipe 4 and the spray gun 7, and has a filter plate 8 inside to filter solid impurities in the antistatic liquid and prevent the spray gun 7 from clogging. The spray gun 7 is used to spray the filtered antistatic liquid onto the surface of the target material. The guide rod 10 is used to ensure that the antistatic liquid is sprayed onto the surface of the target material. To ensure stable sliding of the filter screen plate 8 within the filter tube 6, the first spring 11 provides elastic force, allowing the filter screen plate 8 to automatically reset. The cleaning plate 13 rotates under the drive of the rotating rod 12 to clean impurities on the surface of the filter screen plate 8, reducing clogging. During operation, the antistatic liquid enters the filter tube 6 from the storage tank 3 through the outlet pipe 4, passes through the filter screen plate 8 to remove solid impurities, and is then sprayed through the spray gun 7. As the antistatic liquid is used continuously, impurities gradually accumulate on the filter screen plate 8 and become clogged. Simultaneously, the continuous flow of the antistatic liquid generates an impact force that pushes the filter screen plate 8 and the rotating rod 12 to slide within the filter tube 6. At this time, the slider 16 slides within the guide groove 14, forcing the rotating rod 12 to rotate, thereby causing the cleaning plate 13 to rotate and clean the surface of the filter screen plate 8, removing impurities adhering to the filter screen plate 8. After cleaning is completed, the elastic force of the first spring 11 resets the filter screen plate 8, achieving the effect of automatically cleaning the filter screen plate 8.
[0018] Furthermore, a scraper 18 is slidably connected inside the cleaning plate 13, and a second spring 17 is provided between the scraper 18 and the inside of the cleaning plate 13. The second spring 17 provides elastic force to ensure that the scraper 18 is always in close contact with the surface of the filter plate 8 when no external force is applied, thereby improving the scraping effect. At the same time, the elasticity of the second spring 17 also allows the scraper 18 to retract moderately when encountering greater resistance, avoiding excessive wear and jamming.
[0019] Furthermore, a slip ring 19 is slidably connected to the outer wall of the rotary joint 5, and a third spring 20 is provided between the slip ring 19 and the rotary joint 5. A limiting rod 21 is fixedly connected to one end of the slip ring 19, and limiting slots are correspondingly opened at both ends of the filter tube 6. When the rotary joint 5 is connected to the filter tube 6, the limiting rod 21 is moved away from the limiting slot by pressing the slip ring 19 to avoid obstructing the connection between the rotary joint 5 and the filter tube 6. After the connection is completed, the slip ring 19 is released, and the limiting rod 21 is inserted into the limiting slot under the elastic force of the third spring 20 to ensure a stable connection and reduce the loosening of the connection between the rotary joint 5 and the filter tube 6 due to external factors.
[0020] Furthermore, a connecting ring 23 is fixedly connected to the top of the inside of the feed inlet 22, and a mesh basket 24 is inserted into the inside of the connecting ring 23. The mesh basket 24 is equipped with a handle. When the antistatic liquid enters the storage tank 3 through the feed inlet 22, the mesh basket 24 first performs preliminary filtration of the liquid to remove larger impurities and particles, ensuring that the antistatic liquid entering the storage tank 3 and the subsequent spraying system is relatively pure. When it is necessary to clean or replace the mesh basket 24, the mesh basket 24 can be easily grasped by the handle and pulled out from the connecting ring 23 to clean the mesh basket 24, remove accumulated impurities, or directly replace the mesh basket 24 with a new one.
[0021] Furthermore, a stirring rod 26 is rotatably installed inside the liquid storage tank 3, and a stirring motor 25 connected to the stirring rod 26 is installed at the top of the liquid storage tank 3. Before the equipment is running or when the antistatic liquid needs to be mixed, the stirring motor 25 is started, and the stirring rod 26 rotates inside the liquid storage tank 3 to fully stir the antistatic liquid, ensuring that the components in the liquid are evenly distributed and avoiding sedimentation or stratification.
[0022] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. An antistatic liquid spraying device with self-cleaning function, comprising a base (1), characterized in that: The base (1) has a control panel (2) and a liquid storage tank (3) installed at both ends. The liquid storage tank (3) is connected to an outlet pipe (4). One end of the outlet pipe (4) is threadedly connected to a filter pipe (6) via a rotary joint (5), and the other end of the filter pipe (6) is also threadedly connected to a spray gun (7) via a rotary joint (5). The top of the liquid storage tank (3) is provided with a feed inlet (22). A filter screen plate (8) is slidably provided inside the filter pipe (6). The filter pipe (6) is also provided with a filter screen plate (8) for use. A self-cleaning component for cleaning and preventing clogging of the filter plate (8); the self-cleaning component includes a limiting ring (9), the limiting ring (9) is located at one end inside the filter tube (6), and multiple sets of guide rods (10) slide around the limiting ring (9). The other end of the guide rod (10) is connected to the edge of the filter plate (8). A first spring (11) is provided between the filter plate (8) and the limiting ring (9). Limiting blocks are fixed at the ends of the guide rods (10) near the limiting ring (9).
2. The antistatic liquid spraying equipment with self-cleaning function as described in claim 1, characterized in that: The self-cleaning component also includes a rotating rod (12) and a mounting rod (15). The rotating rod (12) is rotatably connected to the center of the filter plate (8), and one end of the rotating rod (12) is installed inside the filter plate (8) with a cleaning plate (13). One end of the rotating rod (12) is provided with a spiral guide groove (14). The mounting rod (15) is located inside the filter tube (6) on one side, and one end of the mounting rod (15) is provided with a slider (16) that is slidably connected to the guide groove (14).
3. The antistatic liquid spraying equipment with self-cleaning function as described in claim 2, characterized in that: A scraper (18) is slidably connected inside the cleaning plate (13), and a second spring (17) is provided between the scraper (18) and the inside of the cleaning plate (13).
4. The antistatic liquid spraying equipment with self-cleaning function as described in claim 1, characterized in that: The outer wall of the rotary joint (5) is slidably connected to a slip ring (19), and a third spring (20) is provided between the slip ring (19) and the rotary joint (5). One end of the slip ring (19) is fixedly connected to a limit rod (21), and limit slots are opened at both ends of the filter tube (6).
5. The antistatic liquid spraying equipment with self-cleaning function as described in claim 1, characterized in that: The feed inlet (22) has a plug ring (23) fixedly connected to its top end. A mesh basket (24) is inserted into the plug ring (23). The mesh basket (24) has a handle.
6. The antistatic liquid spraying equipment with self-cleaning function as described in claim 1, characterized in that: The storage tank (3) is equipped with a stirring rod (26) that rotates inside, and a stirring motor (25) that is connected to the stirring rod (26) is installed at the top of the storage tank (3).