An automatic flask cleaning device

Abstract

This utility model relates to an automatic flask cleaning device, comprising: a cleaning chamber for fixing the flask; a spray assembly including a main spray pipe and a secondary spray pipe, the secondary spray pipe being arranged in a ring around the outside of the main spray pipe and communicating with the main spray pipe; a drive module including a motor and a drive shaft, the drive shaft passing through the bottom wall of the cleaning chamber and connected to the output end of the motor; and an expandable brush head assembly including a brush head body, a telescopic rod assembly, and bristle units, the brush head body being connected to the drive module via the drive shaft, the telescopic rod assembly being radially distributed around the brush head body, and the bristle units being fixed to the ends of the telescopic rod assembly. This automatic flask cleaning device can adapt to the internal shape of flasks of different sizes, automatically adjusts the contact position of the bristles through the telescopic rod assembly, and achieves efficient cleaning of the inner and outer walls through high-speed spraying, significantly improving cleaning efficiency and eliminating cleaning dead corners. It is particularly suitable for cleaning difficult-to-dissolve and difficult-to-clean adhesive reagents and compounds.

Description

Technical Field

[0001] This utility model relates to the field of cleaning device technology, and in particular to an automatic flask cleaning device. Background Technology

[0002] Flasks, common solid-liquid or liquid-liquid reaction vessels in laboratories, require manual cleaning of residual reagents after experiments. However, given the rapid development of essential oil emulsification technology and the need for large-scale experiments by some companies, a large number of contaminated flasks requiring immediate cleaning inevitably arise, some even contaminated with stubborn, difficult-to-dissolve, and difficult-to-clean reagents and compounds. Traditional manual cleaning is often time-consuming and labor-intensive. Furthermore, for round-bottom flasks with larger internal volumes, the straight brushes currently used in laboratories are difficult to clean the flask body and the area below the neck, often creating hard-to-reach areas.

[0003] Currently, the conventional technology for cleaning laboratory flasks typically employs a spray immersion method. STIER Instruments Co., Ltd. once launched a fully automatic flask washer that uses independent upper and lower circulating pumps for spraying, utilizing the physical action of the rinsing water and the chemical action of the cleaning agent to emulsify and peel off the glassware. While this equipment is highly effective for cleaning glassware contaminated with water-soluble and oily substances, it still has limitations for some contaminants that are difficult to emulsify and peel off, meaning it cannot achieve rapid and efficient cleaning. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the difficulty in achieving high efficiency and cleanliness when cleaning laboratory utensils in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model provides an automatic flask cleaning device, comprising: a cleaning chamber with several positioning grooves on its inner wall for fixing the flask; a spray assembly including a main spray pipe and a secondary spray pipe, the main spray pipe being located at the top center of the cleaning chamber and extending vertically downwards, and the secondary spray pipes being distributed in a ring around the outside of the main spray pipe and communicating with it; a drive module including a motor and a drive shaft, the motor being fixed to the bottom of the cleaning chamber, and the drive shaft passing through the bottom wall of the cleaning chamber and connected to the output end of the motor; and an unfoldable brush head assembly including a brush head body, a telescopic rod assembly, and bristle units, the brush head body being connected to the drive module via the drive shaft, the telescopic rod assembly being radially distributed around the brush head body, and the bristle units being fixed to the end of the telescopic rod assembly. This automatic flask cleaning device can adapt to the internal shape of flasks of different sizes, automatically adjusts the contact position of the bristles through the telescopic rod assembly, and achieves efficient cleaning of the inner and outer walls through high-speed spraying, significantly improving cleaning efficiency and eliminating cleaning dead angles.

[0006] In one embodiment of this utility model, the brush head body is a cylindrical structure with a hollow interior, and the upper surface of the brush head body is provided with a plurality of strip grooves, which are evenly distributed along the circumference of the brush head body. The telescopic rod assembly includes a plurality of telescopic rods, which are embedded in the strip grooves and connected to the inner wall of the strip grooves.

[0007] In one embodiment of this utility model, a sliding mechanism is provided between the telescopic rod and the strip groove. The sliding mechanism includes a guide rail and a slider. The guide rail is disposed on the inner wall of the strip groove, and the slider is disposed on the outer wall of the telescopic rod. The slider and the guide rail slide together to realize the telescopic rod moving along the direction of the strip groove.

[0008] In one embodiment of this utility model, the telescopic rod is provided with a locking member at its end, which cooperates with the end of the strip groove to limit the range of movement of the telescopic rod.

[0009] In one embodiment of the present invention, the bristle unit includes flexible bristles and a hard scraper. The flexible bristles are fixed to the outer wall of the end of the telescopic rod, and the hard scraper is embedded between the flexible bristles and hinged to the end of the telescopic rod. The hard scraper swings around the hinge point.

[0010] In one embodiment of this utility model, the flexible bristles have a wavy structure, and the surface of the hard scraper is provided with a number of raised particles, which are hemispherical and evenly distributed on the surface of the hard scraper.

[0011] In one embodiment of the present invention, the spray assembly further includes a high-pressure pump and a diversion valve. The high-pressure pump is connected to the main spray pipe, and the diversion valve is disposed between the main spray pipe and the auxiliary spray pipe. The end of the main spray pipe is provided with a rotating nozzle, which is connected to the main spray pipe. The outer wall of the rotating nozzle is provided with a plurality of inclined spray holes.

[0012] In one embodiment of this utility model, the end of the secondary spray pipe is provided with an atomizing nozzle, which faces the inner wall of the cleaning chamber.

[0013] In one embodiment of the present invention, the outer wall of the rotating nozzle is provided with a plurality of blades, the blades cooperate with the inclined spray hole to generate rotational power, and the atomizing nozzle is provided with a vortex plate, the surface of the vortex plate being provided with a spiral groove.

[0014] In one embodiment of this utility model, the drive shaft is a hollow structure and has an internal guide channel. The guide channel is connected to the liquid inlet at the bottom of the cleaning chamber. The outer wall of the drive shaft is provided with a plurality of drainage holes. The drainage holes are evenly distributed along the length of the drive shaft and are connected to the guide channel. The drainage holes are used to guide the cleaning liquid into the brush head body.

[0015] This utility model discloses an automatic flask cleaning device. After the flask in the cleaning chamber is fixed by the positioning groove, the drive module is activated to drive the transmission shaft to rotate. The transmission shaft drives the brush head body to rotate synchronously. At the same time, the cleaning fluid enters the brush head body through the guide channel of the transmission shaft. The pressure of the cleaning fluid pushes the telescopic rod to extend outward along the strip groove, so that the bristle unit is in close contact with the inner wall of the flask. As the brush head body rotates, the flexible bristles on the telescopic rod clean the inner wall of the flask, while the hard scraper removes stubborn stains. During this process, the high-pressure pump delivers the cleaning fluid to the main spray pipe and distributes it to the secondary spray pipe through the diversion valve. The rotating nozzle at the end of the main spray pipe uses the reaction force generated by the inclined spray hole to drive the blade to rotate, thereby achieving all-round spraying. The atomizing nozzle of the secondary spray pipe forms a fine water mist through the vortex plate to assist in cleaning the outer wall of the flask.

[0016] The automatic flask cleaning device of this invention has the following advantages compared with the prior art: 1. Through the cooperation of the telescopic rod assembly and the brush unit, it can adapt to the inner cavity shape of flasks of different sizes. Especially for the curved inner wall of round-bottom flasks, the telescopic rod can automatically adjust the extension length according to the curvature of the inner wall to ensure that the brush unit always maintains close contact with the inner wall of the flask, significantly improving cleaning efficiency. 2. The rotating nozzle combined with the blade design realizes the self-driven rotation function, which can complete all-round spraying without the need for an additional power source. At the same time, the design of the inclined spray hole allows the cleaning liquid to cover every corner of the flask, effectively eliminating the cleaning dead spots that exist in traditional spraying methods. 3. The combination of hard scraper and soft bristles ensures powerful removal of stubborn stains without damaging the inner wall of the flask. The raised particles on the surface of the hard scraper further enhance the cleaning ability, making it particularly suitable for cleaning difficult-to-dissolve and hard-to-clean adhesive reagents and compounds. Attached Figure Description

[0017] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein: Figure 1 This is a schematic diagram of the overall structure of the automatic flask cleaning device in a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of the unfolded brush head assembly structure in a preferred embodiment of the present invention; Figure 3 This is a schematic diagram of the spray assembly and rotating nozzle structure in a preferred embodiment of the present invention; Figure 4 This is a schematic diagram of the transmission shaft and flow guide channel structure in a preferred embodiment of the present invention; Figure 5 This is a partially enlarged schematic diagram of the flexible bristles and the hard scraper in a preferred embodiment of the present invention; Figure 6 This is a schematic diagram of the internal structure of the atomizing nozzle in a preferred embodiment of the present invention.

[0018] Explanation of reference numerals in the instruction manual's attached drawings: 1. Cleaning chamber; 2. Positioning groove; 3. Main spray pipe; 4. Secondary spray pipe; 5. Motor; 6. Drive shaft; 7. Brush head body; 8. Telescopic rod assembly; 9. Brush unit; 10. Strip groove; 11. Telescopic rod; 12. Locking element; 13. Flexible bristles; 14. Hard scraper; 15. High-pressure pump; 16. Diverter valve; 17. Rotating nozzle; 18. Inclined spray hole; 19. Atomizing nozzle; 20. Guide channel; 21. Drain hole; 22. Guide rail; 23. Slider; 24. Protruding particles; 25. Blade; 26. Vortex vane; 27. Spiral channel; 28. Elastic buckle; 29. ​​Baffle; 30. Spiral flow channel. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0020] Reference Figure 1 As shown, the automatic flask cleaning device of this utility model includes a cleaning chamber 1, a spray assembly, a drive module, and an unfoldable brush head assembly. The cleaning chamber 1 is a sealed cavity with several positioning grooves 2 on its inner wall for fixing the flask. The spray assembly includes a main spray pipe 3 and a secondary spray pipe 4. The main spray pipe 3 is located at the top center of the cleaning chamber 1 and extends vertically downwards. The secondary spray pipes 4 are arranged in a ring around the main spray pipe 3 and communicate with it. The drive module includes a motor 5 and a drive shaft 6. The motor 5 is fixed to the bottom of the cleaning chamber 1, and the drive shaft 6 passes through the bottom wall of the cleaning chamber 1 and is connected to the output end of the motor 5. The unfoldable brush head assembly includes a brush head body 7, a telescopic rod assembly 8, and bristle units 9. The brush head body 7 is connected to the drive module via the drive shaft 6. The telescopic rod assembly 8 is radially distributed around the brush head body 7, and the bristle units 9 are fixed to the ends of the telescopic rod assembly 8.

[0021] Reference Figure 2As shown, the brush head body 7 is a cylindrical structure with a hollow interior. Several strip-shaped grooves 10 are formed on its upper surface, evenly distributed around the circumference of the brush head body 7. The telescopic rod assembly 8 includes several telescopic rods 11, which are embedded in the strip-shaped grooves 10 and connected to the inner wall of the grooves 10 via a sliding mechanism. The sliding mechanism includes a guide rail 22 and a slider 23. The guide rail 22 is located on the inner wall of the strip-shaped groove 10, and the slider 23 is located on the outer wall of the telescopic rod 11. The slider 23 slides against the guide rail 22 to ensure that the telescopic rod 11 moves along the direction of the strip-shaped groove 10. A locking element 12 is provided at the end of the telescopic rod 11. The locking element 12 is an elastic buckle structure that engages with the groove at the end of the strip-shaped groove 10 to achieve a locking function, limiting the range of movement of the telescopic rod 11. The brush unit 9 includes flexible bristles 13 and a hard scraper 14. The flexible bristles 13 are fixed to the outer wall of the end of the telescopic rod 11. The hard scraper 14 is embedded between the flexible bristles 13 and hinged to the end of the telescopic rod 11. The hard scraper 14 can swing around the hinge point within a certain angle range. The flexible bristles 13 have a wavy structure, and the surface of the hard scraper 14 is provided with several raised particles 24. The raised particles 24 are hemispherical and evenly distributed on the surface of the hard scraper 14, further enhancing the cleaning ability.

[0022] Reference Figure 3 As shown, the spray assembly also includes a high-pressure pump 15 and a diversion valve 16. The high-pressure pump 15 is connected to the main spray pipe 3, and the diversion valve 16 is located between the main spray pipe 3 and the auxiliary spray pipe 4. A rotating nozzle 17 is provided at the end of the main spray pipe 3. The rotating nozzle 17 is rotatably connected to the main spray pipe 3 via a bearing. The outer wall of the rotating nozzle 17 has several inclined spray holes 18 and blades 25. The blades 25 cooperate with the inclined spray holes 18 to generate rotational power. An atomizing nozzle 19 is provided at the end of the auxiliary spray pipe 4, facing the inner wall of the cleaning chamber 1. A vortex vane 26 is provided inside the atomizing nozzle 19, and a spiral groove 27 is formed on the surface of the vortex vane 26 to enhance the atomization effect.

[0023] Reference Figure 4 As shown, the drive shaft 6 is a hollow structure with an internal guide channel 20, which is connected to the liquid inlet at the bottom of the cleaning chamber 1. The outer wall of the drive shaft 6 has several drainage holes 21, which are evenly distributed along the length of the drive shaft 6 and communicate with the guide channel 20. The drainage holes 21 are used to guide the cleaning fluid into the brush head body 7. The inner wall of the guide channel 20 has several baffles 29, which are arc-shaped and staggered along the length of the guide channel 20 to form a spiral flow channel 30, improving the stability and uniformity of the cleaning fluid flow.

[0024] Reference Figure 5As shown in the enlarged details of the flexible bristles 13 and the hard scraper 14, the flexible bristles 13 adopt a wave-shaped structure design, which can better conform to the curved surface of the inner wall of the flask. The raised particles 24 on the surface of the hard scraper 14 further enhance the ability to remove stubborn stains. At the same time, the hinged design allows the hard scraper 14 to automatically adjust its angle according to the shape of the inner wall of the flask, avoiding damage to the inner wall of the flask.

[0025] Reference Figure 6 As shown, the internal structure of the atomizing nozzle 19 shows that the spiral grooves 27 on the surface of the vortex vane 26 can form a fine water mist with the cleaning fluid, thereby assisting in cleaning the outer wall of the flask and improving cleaning efficiency.

[0026] The working principle of the automatic flask cleaning device of this utility model is as follows: After the flask is fixed in the positioning slot 2 within the cleaning chamber 1, the start motor 5 drives the drive shaft 6 to rotate, which in turn drives the brush head body 7 to rotate. The cleaning fluid enters the brush head body 7 through the guide channel 20 of the drive shaft 6. The pressure of the cleaning fluid pushes the telescopic rod 11 outward along the strip groove 10, causing the bristle unit 9 to adhere tightly to the inner wall of the flask. As the brush head body 7 rotates, the flexible bristles 13 on the telescopic rod 11 clean the inner wall of the flask, while the hard scraper 14 removes stubborn stains. During this process, the high-pressure pump 15 delivers the cleaning fluid to the main spray pipe 3 and distributes it to the auxiliary spray pipe 4 through the diversion valve 16. The rotating nozzle 17 at the end of the main spray pipe 3 uses the reaction force generated by the inclined spray hole 18 to drive the blade 25 to rotate, thus achieving all-around spraying. The atomizing nozzle 19 of the auxiliary spray pipe 4 forms a fine water mist through the vortex plate 26, providing auxiliary cleaning to the outer wall of the flask.

[0027] The application scenarios for the automatic flask cleaning device of this utility model are as follows: In the laboratory, researchers need to clean a batch of round-bottom flasks of different sizes. First, the flasks are fixed one by one in the positioning groove 2 of the cleaning chamber 1. After the device is started, the drive module drives the brush head body 7 to rotate, and the extension rod 11 automatically adjusts its extension length according to the curvature of the inner wall of the flask, ensuring that the bristle unit 9 always maintains close contact with the inner wall of the flask. The cleaning solution enters the brush head body 7 through the guide channel 20 of the drive shaft 6, and is evenly distributed to each extension rod 11 through the drainage hole 21. The rotating nozzle 17 of the main spray pipe 3 achieves self-driven rotation through the inclined spray hole 18 and the blade 25, covering the inside of the flask in all directions. The atomizing nozzle 19 of the auxiliary spray pipe 4 forms a fine water mist through the vortex plate 26 to assist in cleaning the outer wall of the flask. The entire cleaning process is efficient and thorough, especially suitable for cleaning difficult-to-dissolve and difficult-to-clean adhesive reagents and compounds.

[0028] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An automatic flask cleaning device, characterized in that, include: The cleaning chamber has several positioning grooves on its inner wall, which are used to fix the flask. The spray assembly includes a main spray pipe and a secondary spray pipe. The main spray pipe is located at the center of the top of the cleaning chamber and extends vertically downward. The secondary spray pipe is distributed in a ring outside the main spray pipe and is connected to the main spray pipe. The drive module includes a motor and a drive shaft. The motor is fixed to the bottom of the cleaning chamber, and the drive shaft passes through the bottom wall of the cleaning chamber and is connected to the output end of the motor. An expandable brush head assembly includes a brush head body, a telescopic rod assembly, and a bristle unit. The brush head body is connected to a drive module via a drive shaft. The telescopic rod assembly is radially distributed around the brush head body, and the bristle unit is fixed to the end of the telescopic rod assembly.

2. The flask auto-washing apparatus according to claim 1, characterized by: The brush head body is a cylindrical structure with a hollow interior, and several strip grooves are formed on the upper surface of the brush head body. The strip grooves are evenly distributed along the circumference of the brush head body. The telescopic rod assembly includes several telescopic rods, which are embedded in the strip grooves and connected to the inner wall of the strip grooves.

3. The flask auto-washing apparatus according to claim 2, characterized by: A sliding mechanism is provided between the telescopic rod and the strip groove. The sliding mechanism includes a guide rail and a slider. The guide rail is disposed on the inner wall of the strip groove, and the slider is disposed on the outer wall of the telescopic rod. The slider and the guide rail slide together to realize the telescopic rod moving along the direction of the strip groove.

4. The flask auto-washing apparatus according to claim 2, characterized by: The telescopic rod is provided with a locking element at its end, which cooperates with the end of the strip groove to limit the range of movement of the telescopic rod.

5. The flask auto-washing apparatus according to claim 1, characterized by: The brush unit includes flexible bristles and a hard scraper. The flexible bristles are fixed to the outer wall of the end of the telescopic rod, and the hard scraper is embedded between the flexible bristles and hinged to the end of the telescopic rod. The hard scraper swings around the hinge point.

6. The automatic flask cleaning device according to claim 5, characterized in that: The flexible bristles have a wavy structure, and the surface of the hard scraper is provided with several raised particles, which are hemispherical and evenly distributed on the surface of the hard scraper.

7. The flask auto-washing apparatus according to claim 1, characterized by: The spray assembly also includes a high-pressure pump and a diversion valve. The high-pressure pump is connected to the main spray pipe, and the diversion valve is located between the main spray pipe and the auxiliary spray pipe. The end of the main spray pipe is provided with a rotating nozzle, which is connected to the main spray pipe. The outer wall of the rotating nozzle is provided with several inclined spray holes.

8. The flask auto-washing apparatus according to claim 7, characterized by: The secondary spray pipe is equipped with an atomizing nozzle at its end, and the atomizing nozzle faces the inner wall of the cleaning chamber.

9. The flask auto-washing apparatus according to claim 8, characterized by: The outer wall of the rotating nozzle is provided with several blades, which cooperate with the inclined spray hole to generate rotational power. The atomizing nozzle is provided with a vortex plate, and the surface of the vortex plate is provided with a spiral groove.

10. The flask auto-washing apparatus according to claim 1, characterized by: The drive shaft is a hollow structure with an internal flow channel. The flow channel is connected to the liquid inlet at the bottom of the cleaning chamber. The outer wall of the drive shaft has several drainage holes. The drainage holes are evenly distributed along the length of the drive shaft and are connected to the flow channel. The drainage holes are used to guide the cleaning liquid into the brush head body.

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