Garbage can with air purification function
By designing a trash can with air purification function, and utilizing the cylinder component, exhaust component, and air purification component, the problems of bacterial growth and odor inside the trash can are solved, achieving effective air purification and ensuring environmental and health safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING KEXU INTELLIGENT TECH CO LTD
- Filing Date
- 2025-03-06
- Publication Date
- 2026-05-08
AI Technical Summary
Existing trash cans are prone to bacterial growth and odor after prolonged use. Current solutions, such as physical isolation and chemical disinfection, cannot completely solve the problem and may have adverse effects on the environment and health.
Design a trash can with air purification function, which adopts a cylindrical body component, an exhaust component and an air purification component. The trash exhaust gas is introduced into the air purification component for purification by the airflow from bottom to top. Moisture is absorbed by moisture-absorbing cotton, the air stop ring restricts the airflow direction, the ventilated body provides support, and the air purification component filters harmful substances.
It effectively purifies harmful gases in trash cans, reduces bacterial growth and odor, protects environmental hygiene and health, and avoids the negative impact of chemical residues.
Smart Images

Figure CN224211675U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of trash cans, and more particularly to a trash can with an air purification function. Background Technology
[0002] With the development of society and economy and the improvement of people's living standards, the issue of kitchen waste disposal has received increasing attention.
[0003] refer to Figure 1 In existing technologies, trash cans consist of a single cylindrical assembly 1 and a sealing lid assembly 4 hinged to the top of the cylindrical assembly 1. The cylindrical assembly 1 and the sealing lid assembly 4 together form a sealed space for placing trash, ensuring that harmful substances from kitchen waste do not enter the external environment. While this trash can design can basically meet daily needs, it still has many shortcomings in terms of hygiene and environmental protection. Because medical waste or kitchen waste itself contains moisture or solvents, the enclosed space inside the trash can easily breed bacteria and produce a large amount of odor if left for a long time. These problems not only affect environmental hygiene but may also pose a threat to human health.
[0004] To address these issues, the most common solutions currently available are physical isolation and chemical disinfection.
[0005] Physical isolation method: This method reduces the spread of odors and bacteria by using a lid with better sealing performance. The advantage of this method is its simplicity and low cost, but the disadvantage is that it cannot fundamentally solve the problem, as bacteria still remain inside the container and may continue to multiply.
[0006] Chemical disinfection: Adding disinfectant or a spray device to the trash can and regularly disinfecting the inside. This method can effectively kill some bacteria, but long-term use may lead to chemical residues, which can have adverse effects on the environment and human health. Utility Model Content
[0007] In order to reduce the bacteria growing inside the trash can, reduce the odor produced inside the trash can, and protect people's health, this application provides a trash can with an air purification function.
[0008] The technical solution for a trash can with air purification function provided in this application is as follows:
[0009] A trash can with air purification function includes a cylindrical assembly, an exhaust assembly slidably installed inside the cylindrical assembly, an air purification assembly slidably installed on the outside of the cylindrical assembly, a sealing cover assembly hinged to the top of the air purification assembly, the sealing cover assembly and the cylindrical assembly forming a sealed space, the exhaust assembly generates an upward airflow that passes through the air purification assembly and re-enters the exhaust assembly to complete the air purification; a return air inlet for supplying gas from the air purification assembly to the cylindrical assembly and an exhaust air inlet for supplying gas from the cylindrical assembly to the air purification assembly are provided through the cylindrical assembly.
[0010] By adopting the above technical solution, the cylinder assembly is used to store garbage, the sealing cover assembly forms a sealed space with the cylinder assembly, the exhaust assembly is used to convect the waste gas stored in the garbage, and the convected air enters the air purification assembly for purification.
[0011] Optionally, the cylinder assembly includes a cylindrical body, with return air inlets evenly distributed on the lower half of the side wall of the cylinder and exhaust air inlets evenly distributed on the upper half of the side wall of the cylinder.
[0012] By adopting the above technical solution, the cylindrical body provides storage support for the internal waste. Specifically, there are 6 return air vents, with 6 return air vents opened around the circumference of the body for the purified fresh air to be discharged. There are 8 exhaust vents, with 8 exhaust vents opened around the circumference of the body for the exhaust component to discharge the waste gas in the waste into the air purification component.
[0013] Optionally, the inner walls of both the exhaust vent and the return vent are equipped with moisture-absorbing cotton for absorbing wastewater vapor. The moisture-absorbing cotton is cylindrical.
[0014] By adopting the above technical solution, the moisture-absorbing cotton installed in the exhaust and return air inlets is used to absorb moisture in the exhaust gas. The cylindrical moisture-absorbing cotton can fit between the exhaust component and the cylinder body to ensure that the absorbed wastewater does not flow into the cylinder body.
[0015] Optionally, the inner wall of the cylinder is provided with an air-stopping ring, which is located between the return air port and the exhaust air port; the exhaust assembly includes a ventilation cylinder, and the inner wall of the air-stopping ring contacts and seals the outer wall of the ventilation cylinder.
[0016] By adopting the above technical solution, the air-stop rings located between the return air inlet and the exhaust air outlet are used to restrict the flow direction of the purified air, so that the airflow can only flow between the return air inlet and the exhaust air outlet.
[0017] Optionally, the ventilation casing has an exhaust duct at the bottom, an exhaust fan assembly is vertically installed inside the exhaust duct, an exhaust hole is opened at the top of the exhaust duct, and air inlets are evenly opened on the outer wall of the exhaust duct. The air inlets are located at the bottom of the exhaust duct, and the air inlets and return air inlets are at the same horizontal height.
[0018] By adopting the above technical solution, the ventilation cylinder is used to provide support and storage for the garbage inside the cylinder. The inner wall of the windproof ring is in contact with and sealed to the outer wall of the ventilation cylinder, so that the air circulation path can only circulate between the return air port and the exhaust air port.
[0019] Optionally, the ventilation casing has an exhaust duct at the bottom, an exhaust fan assembly is vertically installed inside the exhaust duct, an exhaust hole is opened at the top of the exhaust duct, and air inlets are evenly opened on the outer wall of the exhaust duct. The air inlets are located at the bottom of the exhaust duct, and the air inlets and return air inlets are at the same horizontal height.
[0020] By adopting the above technical solution, the exhaust fan assembly installed vertically in the exhaust duct absorbs fresh air purified by the air purification assembly to generate a convection air source. The convection air enters the duct body through the exhaust hole, thereby carrying away the waste gas in the garbage.
[0021] Optionally, the air purification component includes a sealed container, the inner wall of which contacts the outer wall of the outer cylinder, an installation cavity is provided in the inner wall of the sealed container, a harmful substance filter layer is installed between the installation cavity and the outer wall of the outer cylinder, the harmful substance filter layer is cylindrical, and a buckle plate is provided at the bottom of the sealed container to fix the position of the cylinder inside the sealed container.
[0022] By adopting the above technical solution, the sealed barrel is used to seal the internal harmful substance filter layer. The cylindrical harmful substance filter layer can be attached to the inner wall of the sealed barrel to filter harmful substances, such as heavy metals, dioxins and sulfur dioxide. The bottom of the sealed barrel is equipped with a buckle plate, which is used to snap the sealed barrel to the cylinder body and at the same time provide a support structure for the cylinder body to be placed on the ground.
[0023] Optionally, ventilation flow holes are evenly distributed on the side wall of the ventilation cylinder, and the ventilation flow holes make the ventilation cylinder resemble a mesh cylinder.
[0024] By adopting the above technical solution, ventilation flow holes are evenly opened on the side wall of the ventilation cylinder. The ventilation flow holes are used to realize the structure of airflow replacement between the inside of the cylinder and the air purification components.
[0025] Optionally, the sealing cap assembly includes a cap body with an air guide cone connected to one side for receiving and guiding upward airflow. When the cap body is fastened onto the cylinder body, the air guide cone is located inside the cylinder body.
[0026] By adopting the above technical solution, the cover is used to provide the structure of a sealed cylinder, and the air guide cone at the bottom of the cover is used to receive and guide the airflow from bottom to top to enter the harmful substance filter layer through the exhaust port, thereby facilitating the realization of a complete circulation path.
[0027] In summary, this application includes at least one of the following beneficial technical effects:
[0028] 1. The cylinder assembly is used to store garbage. The sealing cover assembly and the cylinder assembly form a sealed space. The exhaust assembly is used to convect the exhaust gas from the stored garbage. The convected air enters the air purification assembly for purification.
[0029] 2. The cylindrical body provides storage support for the internal waste. Specifically, there are 6 return air vents, with 6 return air vents opened around the circumference of the body for the purified fresh air to be discharged. There are 8 exhaust vents, with 8 exhaust vents opened around the circumference of the body for the exhaust component to discharge the waste gas in the waste into the air purification component.
[0030] 3. The air-stop rings located between the return air inlet and the exhaust air outlet respectively are used to restrict the flow direction of the purified air, so that the airflow can only flow between the return air inlet and the exhaust air outlet. Attached Figure Description
[0031] Figure 1 It is a 3D diagram of existing technology.
[0032] Figure 2 This is an exploded view of this embodiment.
[0033] Figure 3 This is the front view of this embodiment.
[0034] Figure 4 yes Figure 3 Full sectional view along the AA direction.
[0035] Explanation of reference numerals in the attached drawings: 1. Cylinder assembly; 11. Cylinder; 12. Return air inlet; 13. Exhaust air outlet; 14. Moisture-absorbing cotton; 15. Windproof ring; 2. Exhaust assembly; 21. Ventilation cylinder; 22. Exhaust duct; 23. Exhaust fan assembly; 231. Motor; 232. Fan; 24. Exhaust hole; 25. Air inlet; 26. Baffle; 3. Air purification assembly; 31. Sealed cylinder; 32. Mounting cavity; 33. Hazardous substance filter layer; 34. Snap-on plate; 4. Sealing cover assembly; 41. Cover; 42. Air guide cone. Detailed Implementation
[0036] The following is in conjunction with the appendix Figure 2-4 This application will be described in further detail.
[0037] This application discloses a trash can with an air purification function. (See also...) Figure 2The trash can with air purification function includes a cylindrical assembly 1, an exhaust assembly 2 inside the cylindrical assembly 1, and the cylindrical assembly 1 and the exhaust assembly 2 are slidably installed. An air purification assembly 3 is located on the outside of the cylindrical assembly 1, and the outside of the cylindrical assembly 1 and the air purification assembly 3 are detachably installed. A sealing cover assembly 4 is hinged to the top of the air purification assembly 3. When the cylindrical assembly 1 is installed inside the air purification assembly 3, the sealing cover assembly 4 can close the upper end of the cylindrical assembly 1, so that a sealed space for placing trash is formed between the sealing cover assembly 4 and the cylindrical assembly 1. In use, the operator activates the exhaust assembly 2, which generates an upward airflow. The cylindrical assembly 1 includes a cylindrical body 11, which is cylindrical in shape. The bottom of the cylindrical body 11 has return air inlets 12, specifically, there are 6 return air inlets 12 around the circumference. The top of the cylindrical body 11 has exhaust vents 13, specifically, there are 8 exhaust vents 13 around the circumference of the cylindrical body 11 for discharging polluted air. The return air vent and exhaust air vent connect the cylinder and the air purification component, allowing harmful gases inside the cylinder to pass smoothly through the exhaust air vent to the air purification component for filtration. The filtered purified gas then returns to the cylinder through the return air vent, completing the purification of the air inside the cylinder. The number of exhaust air vents 13 is greater than the number of return air vents 12, allowing the air to be purified to enter the air purification component 3 more easily, achieving a better purification effect. The airflow carries away harmful gases from the kitchen waste inside the cylinder component 1 and enters the air purification component 3 through the exhaust air vents 13. The air purification component 3 adsorbs harmful bacteria in the airflow, purifying the polluted air. The purified fresh air returns to the cylinder 11 through the return air vents 12, thus completing one round of purification for the air in the cylinder 11.
[0038] refer to Figure 3 and Figure 4 Both the exhaust vent 13 and the return air vent 12 are equipped with moisture-absorbing cotton 14 for absorbing sewage vapor. The airflow blown by the exhaust component 2 enters the garbage and carries away the moisture. The moisture-absorbing cotton 14 in the exhaust vent 13 performs initial moisture absorption, preventing the air purification component 3 from becoming full and affecting the purification of harmful substances. The air purified by the air purification component 3 can be filtered again by the moisture-absorbing cotton 14 at the return air vent 12 before re-entering the cylinder 11. The cylindrical moisture-absorbing cotton 14 can adhere to the inside of the cylinder 11, saving space.
[0039] refer to Figure 3 and Figure 4The inner wall of the cylinder 11 is provided with several wind-stopping rings 15. Multiple wind-stopping rings 15 can also be provided along the cylinder 11. In this embodiment, two wind-stopping rings 15 are provided as an example. The two wind-stopping rings 15 are located between the return air port 12 and the exhaust air port 13, respectively. The two wind-stopping rings 15 are used to limit the airflow direction and prevent the circulating air from circulating in the gap between the inner wall of the cylinder 11 and the outer wall of the exhaust assembly 2 when the air is convection.
[0040] refer to Figure 4 The exhaust assembly 2 includes a ventilation cylinder 21, which is placed inside the cylinder 11 to hold waste. The ventilation cylinder is mesh-shaped to ensure that harmful gases inside the ventilation cylinder can smoothly reach the exhaust port. Gas purified by the air purification assembly can smoothly pass through the mesh-shaped ventilation cylinder from the return air inlet to the interior of the ventilation cylinder. The inner walls of the two windproof rings 15 are respectively in contact with and sealed to the outer wall of the ventilation cylinder 21, thereby preventing the formation of unnecessary circulation paths between the cylinder 11 and the ventilation cylinder 21.
[0041] refer to Figure 4 The bottom of the ventilation casing 21 is provided with an exhaust duct 22. The air inlet 25 and the return air inlet 12 are at the same horizontal level to ensure the correct airflow path. An exhaust fan assembly 23 is vertically installed inside the exhaust duct 22. The exhaust fan assembly 23 includes a motor 231, which is fixedly connected to the casing 11. A fan 232 is installed on the output shaft of the motor 231. An exhaust hole 24 is opened at the top of the exhaust duct 22. The upward airflow generated by the motor 231 driving the fan 232 enters the casing 11 through the exhaust hole 24. Several air inlets 25 are opened on the outer wall of the exhaust duct 22. The number of air inlets 25 is 6. The air inlets 25 are located at the bottom of the exhaust duct 22. The upward airflow creates a negative pressure at the bottom of the exhaust fan assembly 23. The air inlets 25 are the structure that provides purified air to enter the exhaust duct 22.
[0042] A baffle 26 is fixed between the outer wall of the exhaust duct 22 and the inner wall of the ventilation box 21. The baffle 26 can isolate the air inlet 25 and the exhaust 24, preventing the gas discharged from the exhaust 24 from being directly absorbed by the air inlet 25 again, thus affecting the airflow from bottom to top in the ventilation box 21.
[0043] refer to Figure 4 The air purification component 3 includes a sealed bucket 31, which is fitted onto the cylinder 11. The inner wall of the sealed bucket 31 has an installation cavity 32, and the installation cavity 32 is provided with a harmful substance filter layer 33. The harmful substance filter layer 33 is cylindrical and is used to seal the cylinder component 1 and the sealed bucket 31. After the gas in the garbage enters, it is purified by passing through the harmful substance filter layer 33.
[0044] The bottom of the sealing barrel 31 is provided with a snap-fit plate 34, which is used to limit the positional relationship between the sealing barrel 31 and the cylinder 11. During installation, the cylinder 11 is directly inserted from the top of the sealing barrel 31, so that the bottom of the cylinder 11 abuts against the snap-fit plate 34, thus completing the installation of the cylinder 11 and fixing its position inside the sealing barrel 31. At the same time, the snap-fit plate 34 can also provide support for the cylinder 11.
[0045] refer to Figure 4 The sealing cap assembly 4 includes a cap 41, which seals the cylinder 11. When the cap 41 is fastened to the cylinder 11, the air guide cone 42 is located inside the cylinder 11. The air guide cone 42 is used to receive and guide the airflow from bottom to top and allow it to pass smoothly through the exhaust port into the harmful substance filter layer 33.
[0046] The implementation principle of a trash can with air purification function in this application embodiment is as follows: the exhaust fan assembly 23 located in the exhaust duct 22 is activated. The bottom of the exhaust fan assembly 23 receives fresh air from the air purification assembly 3. The fresh air enters the cylinder 11 after being blown by the fan through the return air port 12, thereby carrying the gas in the trash upwards to contact the air guide cone 42. The guided air reaches the exhaust port through the mesh-shaped ventilation barrel 21. Then, the moisture in the gas is absorbed by the moisture absorption cotton 14 in the exhaust port 13. Finally, the air enters the air purification assembly 3 to absorb and remove harmful substances (dioxins, heavy metals and sulfur dioxide), thereby carrying out the next round of air purification.
[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A trash can with air purification function, characterized in that: The system includes a cylindrical assembly (1), an exhaust assembly (2) which is slidably installed inside the cylindrical assembly (1), an air purification assembly (3) which is slidably installed outside the cylindrical assembly (1), a sealing cover assembly (4) which is hinged to the top of the air purification assembly (3), and the sealing cover assembly (4) and the cylindrical assembly (1) forming a sealed space; a return air port (12) for gas to flow from the air purification assembly (3) to the cylindrical assembly (1) and an exhaust air port (13) for gas to flow from the cylindrical assembly (1) to the air purification assembly (3) are provided through the cylindrical assembly (1); the exhaust assembly (2) generates an upward airflow that passes through the air purification assembly (3) and re-enters the exhaust assembly (2) to complete the air purification.
2. The trash can with air purification function according to claim 1, characterized in that: The cylindrical assembly (1) includes a cylindrical body (11) in the shape of a cylinder, the return air inlet (12) is opened in the lower half of the side wall of the cylindrical body (11), and the exhaust air inlet (13) is opened in the upper half of the side wall of the cylindrical body (11).
3. The trash can with air purification function according to claim 2, characterized in that: The inner wall of the cylinder (11) is provided with a windproof ring (15), which is located between the return air port (12) and the exhaust port (13); the exhaust assembly (2) includes a ventilation cylinder (21), and the inner wall of the windproof ring (15) is in contact with and sealed to the outer wall of the ventilation cylinder (21).
4. The trash can with air purification function according to claim 1, characterized in that: The inner walls of the exhaust vent (13) and the return vent (12) are both equipped with moisture-absorbing cotton (14) for absorbing sewage vapor, and the moisture-absorbing cotton (14) is cylindrical.
5. The trash can with air purification function according to claim 3, characterized in that: The ventilation casing (21) has an exhaust duct (22) at the bottom, and an exhaust fan assembly (23) is vertically installed inside the exhaust duct (22). An exhaust hole (24) is opened at the top of the exhaust duct (22), and air inlets (25) are evenly opened on the outer wall of the exhaust duct (22). The air inlets (25) are located at the bottom of the exhaust duct (22), and the air inlets (25) and the return air inlet (12) are at the same horizontal height.
6. The trash can with air purification function according to claim 2, characterized in that: The air purification component (3) includes a sealed barrel (31), the inner wall of the sealed barrel (31) is in contact with the outer wall of the cylinder (11), the inner wall of the sealed barrel (31) is provided with an installation cavity (32), and a harmful substance filter layer (33) is installed between the installation cavity (32) and the outer wall of the cylinder (11), the harmful substance filter layer (33) is cylindrical.
7. The trash can with air purification function according to claim 6, characterized in that: The bottom of the sealing barrel (31) is provided with a buckle plate (34) for fixing the position of the cylinder (11) inside the sealing barrel (31).
8. The trash can with air purification function according to claim 3, characterized in that: The ventilation cylinder (21) is in the shape of a mesh tube.
9. The trash can with air purification function according to claim 2, characterized in that: The sealing cap assembly (4) includes a cap body (41) with an air guide cone (42) connected to one side of the cap body (41) for receiving and guiding airflow from bottom to top. When the cap body (41) is fastened to the cylinder (11), the air guide cone (42) is located inside the cylinder (11).