A bag pressing device of an intelligent garbage can

The intelligent trash can uses a bag-pressing device that employs a micro-motor to drive a lead screw, which in turn presses down a lower pressure plate. Combined with infrared and pressure sensors, this controls the compression of the trash, solving the problem of loose trash taking up space and increasing the trash can's capacity and convenience.

CN224492329UActive Publication Date: 2026-07-14SHANXI TENGLONG ENVIRONMENTAL PROTECTION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANXI TENGLONG ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-07-11
Publication Date
2026-07-14

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  • Figure CN224492329U_ABST
    Figure CN224492329U_ABST
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Abstract

The utility model belongs to the technical field of intelligent garbage can, concretely relates to a press bag device of intelligent garbage can, including garbage can body, the garbage can body top surface installs the lid, the lid surface installs the flip cover, the lid top surface installs the micro motor, the micro motor output end surface connects the lead screw, the lead screw surface thread connection lower pressing plate. The utility model, through the start of micro motor installed on the lid, drives the lead screw rotation to make the lower pressing plate can be driven to move down to the fluffy garbage placed in the garbage can body is compressed downward, guarantees garbage can actual capacity, avoids the user because fluffy garbage occupies larger space leads to frequent replacement garbage bag, further reduces the consumable cost while improving the use convenience, the infrared sensor and pressure sensor installed on the lower pressing plate can control the degree of lower pressing of the lower pressing plate according to the garbage capacity in the garbage can body, avoids the idling.
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Description

Technical Field

[0001] This utility model belongs to the field of intelligent trash can technology, specifically relating to a bag-pressing device for an intelligent trash can. Background Technology

[0002] Smart trash cans are a new type of household appliance that integrates sensor technology and automatic control functions. They can automatically open and close the lid using infrared and touch sensors, effectively avoiding direct hand contact and reducing the risk of bacterial transmission. Some high-end models also feature automatic trash bag sealing, overflow alerts, and deodorization and sterilization functions, improving both convenience and hygiene while better adapting to modern smart home living scenarios, bringing convenience to home cleaning and management.

[0003] Existing smart trash cans rely on natural stacking to collect garbage, but in daily life, a large amount of fluffy garbage (such as tissues, plastic bags, foam packaging, etc.) is generated, which takes up a lot of space, resulting in the actual capacity of the trash can being far lower than the nominal value. Users need to change trash bags frequently, which not only increases the cost of consumables but also reduces the convenience of use. Utility Model Content

[0004] The purpose of this utility model is to provide a bag-pressing device for a smart trash can, which aims to solve the problem that existing smart trash cans rely on natural stacking to collect garbage. However, in daily life, a large amount of fluffy garbage (such as paper towels, plastic bags, foam packaging, etc.) is generated, which occupies a lot of space, resulting in the actual capacity of the trash can being far lower than the nominal value. Users need to frequently change trash bags, which not only increases the cost of consumables but also reduces the convenience of use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bag-pressing device for an intelligent trash can, comprising a trash can body, a lid mounted on the top surface of the trash can body, a flip-top mounted on the lid, a micro motor mounted on the top surface of the lid, a lead screw connected to the output end of the micro motor, a lower pressure plate threaded onto the lead screw, a slide rod slidably connected to the pressure plate, the top surface of the slide rod connected to the inner wall surface of the lid, an infrared sensor mounted on the bottom surface of the lower pressure plate, a pressure sensor mounted on the bottom surface of the lower pressure plate, the lead screw sleeved within a bearing mounted on the lid surface, a control panel mounted on the top surface of the lid next to the micro motor, a slot formed on the control panel surface, a plug engaging with the slot surface, a protective cover connected to the plug surface, and the protective cover abutting against the back of the control panel.

[0006] As a preferred embodiment of the bag-pressing device for an intelligent trash can according to this utility model, the lower pressing plate is a U-shaped integrated structure, and the shape and size of the rectangular groove opened on its surface are adapted to the flip cover.

[0007] As a preferred embodiment of the bag-pressing device for an intelligent trash can according to this utility model, the surface of the lower pressing plate is symmetrically provided with circular threaded grooves and circular through grooves, the shape and size of which are adapted to the lead screw and slide bar.

[0008] As a preferred embodiment of the bag-pressing device for an intelligent trash can according to this utility model, the micro motor, infrared sensor, pressure sensor, and control panel are electrically connected using a controller.

[0009] As a preferred embodiment of the bag-pressing device for an intelligent trash can according to this utility model, two pressure sensors are symmetrically installed at the bottom of the lower pressure plate.

[0010] As a preferred embodiment of the bag-pressing device for an intelligent trash can according to this utility model, the insert block is a trapezoidal block whose shape and size are adapted to the slot, and the rectangular cavity formed by the inner wall of the protective cover has a shape and size adapted to the micro motor.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The micro motor installed on the lid drives the lead screw to rotate, which in turn moves the lower pressure plate downwards. This compresses the loose garbage inside the bin, ensuring the bin's actual capacity and preventing users from frequently changing garbage bags due to the large space occupied by loose garbage. This reduces consumable costs and improves ease of use. At the same time, infrared and pressure sensors installed on the lower pressure plate can control the degree of downward pressure based on the amount of garbage inside the bin, preventing it from spinning idly. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the main cross-sectional structure of this utility model;

[0016] Figure 3 This is an exploded structural diagram of the bucket lid and lower pressure plate of this utility model;

[0017] Figure 4 This utility model Figure 3 Enlarged structural diagram of section A.

[0018] In the diagram: 1. Trash can body; 2. Can lid; 3. Flip lid; 4. Miniature motor; 5. Lead screw; 6. Lower pressure plate; 7. Slide rod; 8. Infrared sensor; 9. Pressure sensor; 10. Control panel; 11. Slot; 12. Insert block; 13. Protective cover. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-4 This utility model provides the following technical solution: a bag-pressing device for an intelligent trash can, including a trash can body 1, a lid 2 installed on the top surface of the trash can body 1, a flip-top 3 installed on the surface of the lid 2, a micro motor 4 installed on the top surface of the lid 2, a lead screw 5 connected to the output end of the micro motor 4, a lower pressure plate 6 threadedly connected to the surface of the lead screw 5, a sliding rod 7 slidably connected to the surface of the lower pressure plate 6, the top surface of the sliding rod 7 connected to the inner wall surface of the lid 2, an infrared sensor 8 installed on the bottom surface of the lower pressure plate 6, a pressure sensor 9 installed on the bottom surface of the lower pressure plate 6, and a lead screw 5 sleeved on the surface of the lid 2. Inside the bearing, a control panel 10 is mounted on the top of the lid 2 next to the micro motor 4. A slot 11 is formed on the surface of the control panel 10, and a plug 12 engages with the slot 11. A protective cover 13 is connected to the surface of the plug 12, and the surface of the protective cover 13 abuts against the back of the control panel 10. In this design, the trash can body 1, lid 2, and flip-top 3 constitute the main body of the intelligent trash can. The main body of the intelligent trash can contains a large number of related components. Since these are existing technologies and the core content of this technical solution is irrelevant to them, they will not be described in detail in this technical solution.

[0021] Preferably, the lower pressure plate 6 has a U-shaped integrated structure, and the shape and size of the rectangular groove on its surface are adapted to the flip cover 3.

[0022] In practical use, the rectangular groove on the surface of the lower pressure plate 6 makes it easy to avoid blocking the garbage thrown from the opening end of the flip cover 3 when it is opened.

[0023] Preferably, the surface of the lower pressure plate 6 is symmetrically provided with circular threaded grooves and circular through grooves, the shape and size of which are adapted to the lead screw 5 and the slide bar 7.

[0024] In practical use, when the micro motor 4 starts, it drives the connected lead screw 5 to rotate. When the lead screw 5 rotates, the lower pressure plate 6, which is threaded on its surface, is moved. At the same time, the lower pressure plate 6 moves vertically on the slide rod 7 sleeved on the other side, thereby adjusting the stable movement of the lower pressure plate 6.

[0025] Preferably, the micro motor 4, infrared sensor 8, pressure sensor 9, and control panel 10 are electrically connected using a controller.

[0026] In actual use, the infrared sensor 8 installed at the bottom of the lower pressure plate 6 detects that there is trash within 10cm below. The infrared sensor 8 sends a signal to the control panel 10 and starts the micro motor 4 through the driver connected to the control panel 10.

[0027] Preferably, two pressure sensors 9 are symmetrically installed at the bottom of the lower pressure plate 6.

[0028] In practical use, the pressure of the pressing plate 6 when it presses down the garbage is detected by the pressure sensor 9 symmetrically installed at the bottom of the pressing plate 6, thereby controlling the operation of the micro motor 4.

[0029] Preferably, the insert 12 is a trapezoidal block, the shape and size of which are adapted to the slot 11, and the rectangular cavity formed by the inner wall of the protective cover 13 is adapted to the shape and size of the micro motor 4.

[0030] In practical use, the rubber plug 12 connected to the protective cover 13 is inserted into the slot 11 to fix the connection of the protective cover 13 to the back of the slot 11, thereby shielding the exposed micro motor 4.

[0031] Working principle: When using the trash can body 1 to collect household waste, a trash bag is placed over the top opening of the trash can body 1. Then, the mounting component at the bottom of the lid 2 is installed on top of the trash can body 1 to fix the position of the trash bag. When household waste needs to be collected, the sensors on the trash can body 1 and lid 2 cause the flip-top 3 to flip upwards on the lid 2, thus exposing the trash can body 1 and the opening of the trash bag attached to it, making it convenient to collect the waste. When there is a lot of waste in the trash can body 1, the infrared sensor 8 installed at the bottom of the lower pressure plate 6 detects waste within 10cm below. The infrared sensor 8 sends a signal to the control panel 10, and the driver connected to the control panel 10 starts the micro motor 4. When the micro motor 4 starts, it drives the connected lead screw 5 to rotate. The surfaces of the lead screw 5 and the slide bar 7 are coated with Teflon or hard chrome plating, depending on the actual situation, to improve the surface hardness of the lead screw 5. The pressure sensor 6 is designed to be wear-resistant and have a roughness of less than 0.8 μm (Ra≤0.8μm), making it difficult for impurities to adhere and avoiding affecting the connection stability between the screw 5 and the lower pressure plate 6. This allows the screw-connected lower pressure plate 6 to be driven to move downward on the slide rod 7, compressing the loose garbage in the garbage bag inside the garbage can body 1. While the lower pressure plate 6 is pressing down, the pressure sensor 9 installed at its bottom has an IP65 or higher waterproof rating (dustproof + low-pressure water jet protection) to prevent liquids (such as soup or sewage) in the garbage from seeping into the sensor, causing short circuits or component corrosion. At the same time, a hard protective cover with a thickness of 1-2 mm is installed on the surface of the pressure sensor 9 at the bottom of the lower pressure plate 6 to prevent sharp garbage (such as glass shards or metal edges) from directly scratching the sensing surface of the pressure sensor 9. If the resistance is too great during the compression process (such as getting stuck on a hard object), it will stop immediately and rise. At this time, the infrared sensor 8 needs to be temporarily disabled to prevent it from being triggered again during the rise.

[0032] After one pressing is completed, the infrared sensor 8 and the pressure sensor 9 work together to send a signal to the control panel 10 again to control the micro motor 4 to reverse, thereby driving the pressing plate 6 to rise back to its original position. At the same time, after a large amount of loose garbage is put in at once, the micro motor 4 can be started directly through the control panel 10, thereby driving the pressing plate 6 to move and compress the garbage in the garbage bin 1. The surface of the infrared sensor 8 is coated with Teflon to prevent impurities from adhering to the surface of the infrared sensor 8 and affecting its accuracy.

[0033] In addition, the surface of the micro motor 4 is inserted into the slot 11 by the rubber plug 12 connected to the protective cover 13, thereby fixing the connection of the protective cover 13 to the back of the slot 11, thus shielding the exposed micro motor 4 and preventing it from being damaged by bumps. At the same time, it also prevents the exposed micro motor 4 from affecting the overall aesthetics of the trash can body 1. The protective cover 13 is made of engineering plastic, which has a certain thermal conductivity, and is also insulating and corrosion resistant.

[0034] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A bag-pressing device for an intelligent trash can, comprising a trash can body (1), characterized in that: The top surface of the trash can body (1) is fitted with a lid (2), the lid (2) is fitted with a flip cover (3), the top surface of the lid (2) is fitted with a micro motor (4), the output end of the micro motor (4) is connected to a lead screw (5), the lead screw (5) is threadedly connected to a lower pressure plate (6), the pressure plate (6) is slidably connected to a slide rod (7), the top surface of the slide rod (7) is connected to the inner wall surface of the lid (2), the bottom surface of the lower pressure plate (6) is fitted with an infrared sensor (8), the bottom surface of the lower pressure plate (6) is fitted with a pressure sensor (9), the lead screw (5) is sleeved in a bearing installed on the surface of the lid (2), the top of the lid (2) is fitted with a control panel (10) next to the micro motor (4), the control panel (10) has a slot (11) on its surface, the slot (11) is fitted with a plug (12), the plug (12) is connected to a protective cover (13), and the protective cover (13) abuts against the back of the control panel (10).

2. The bag-pressing device for an intelligent trash can according to claim 1, characterized in that: The lower pressure plate (6) is a U-shaped integrated structure, and the shape and size of the rectangular groove on its surface are adapted to the flip cover (3).

3. The bag-pressing device for an intelligent trash can according to claim 2, characterized in that: The surface of the lower pressure plate (6) is symmetrically provided with circular threaded grooves and circular through grooves, the shape and size of which are adapted to the lead screw (5) and slide bar (7).

4. The bag-pressing device for an intelligent trash can according to claim 1, characterized in that: The micro motor (4), infrared sensor (8), pressure sensor (9) and control panel (10) are electrically connected using a controller.

5. The bag-pressing device for an intelligent trash can according to claim 4, characterized in that: The two pressure sensors (9) are symmetrically mounted on the bottom of the lower pressure plate (6).

6. The bag-pressing device for an intelligent trash can according to claim 1, characterized in that: The insert (12) is a trapezoidal block whose shape and size are adapted to the slot (11), and the rectangular cavity formed by the inner wall of the protective cover (13) is adapted to the micro motor (4).