An automatic lifting bag laying structure for a smart garbage can

Abstract

The utility model discloses an automatic lifting bag laying structure for intelligent garbage can, including intelligent mobile base, the upper surface of intelligent mobile base is provided with automatic lifting structure, and the upper drive of automatic lifting structure is provided with garbage can tray, and the fixed setting of garbage can tray cavity has axial flow fan, and the sidewall of garbage can tray bottom is provided with the air duct mouth that matches with axial flow fan, and the inner wall of garbage can tray cavity is provided with the support boss, and the garbage can is embedded on the support boss, and the bottom of garbage can and garbage can tray cavity exist gap, and form negative pressure chamber under the work of axial flow fan, and the bottom of garbage can is evenly distributed and is provided with a plurality of negative pressure holes that communicate with negative pressure chamber along its circumferential direction, the utility model discloses the cooperation of axial flow fan and negative pressure chamber, negative pressure hole can form negative pressure and realize the automatic flat laying of garbage bag, and in addition, the user's bag laying action is optimized in combination with automatic lifting structure, and the use convenience is improved.

Description

Technical Field

[0001] This utility model belongs to the field of intelligent trash can technology, and in particular relates to an automatic lifting and lowering bag-laying structure for intelligent trash cans. Background Technology

[0002] With the rapid development of the smart home industry, smart trash cans with functions such as automatic movement and automatic bag laying are increasingly favored by the market and are widely used in homes, offices, and public service venues. The automatic bag laying function, as a core module for improving the ease of use of smart trash cans, directly determines the user experience through its efficiency, flatness, and structural stability. Currently, the mainstream automatic bag laying structures for smart trash cans on the market are mainly divided into two types: mechanical stretching and suction. Suction-type automatic bag laying is more widely used due to its relatively gentler action, but existing suction-type bag laying structures still have many design flaws.

[0003] Specifically, the core problem with existing adsorption bag-laying structures lies in the unreasonable negative pressure formation mechanism: most structures use a single adsorption port or a local adsorption channel, which makes it difficult to form a uniform and stable negative pressure environment inside the trash can. This results in insufficient stretching of the trash bag, curling of the edges and corners, failure to fit tightly against the inner wall of the trash can, and poor bag flatness. At the same time, some structures do not have an effective sealing design for the negative pressure chamber, which is prone to negative pressure leakage, further reducing adsorption reliability and resulting in slow bag-laying efficiency.

[0004] Therefore, industry professionals have developed an automatic lifting bag-laying structure for smart trash cans to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an automatic lifting bag-laying structure for smart trash cans, which addresses the problems of uneven negative pressure formation, poor sealing leading to poor bag flatness, and slow efficiency caused by the existing adsorption-type bag-laying structure.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: an automatic lifting bag-laying structure for a smart trash can, comprising a smart mobile base, an automatic lifting structure provided on the upper surface of the smart mobile base, a trash can tray driven above the automatic lifting structure, an axial flow fan fixedly installed inside the trash can tray cavity, an air duct opening matching the axial flow fan opened on the bottom side wall of the trash can tray, a supporting protrusion provided on the inner wall of the trash can tray cavity, a trash can embedded on the supporting protrusion, a gap between the bottom of the trash can and the trash can tray cavity, forming a negative pressure cavity under the operation of the axial flow fan, and a plurality of negative pressure holes communicating with the negative pressure cavity evenly distributed along the circumference of the bottom of the trash can.

[0007] Furthermore, the automatic lifting structure includes several sets of lifting guide components fixedly installed on the upper surface of the intelligent mobile base, a lifting motor is arranged between the several sets of lifting guide components, a cam is fixedly installed on the rotating shaft of the lifting motor, and the cam cooperates with the bottom of the trash can tray under the drive of the lifting motor.

[0008] The lifting guide includes a guide cylinder, and an extension column is slidably disposed inside the cavity of the guide cylinder. The extension column is fixedly connected to the trash can tray.

[0009] Furthermore, the axial flow fan is fixedly connected to the bottom wall of the garbage can tray cavity by several fastening bolts, and a sealing gasket is provided between the outer periphery of the axial flow fan and the inner side wall of the garbage can tray cavity. In addition, the airflow direction of the axial flow fan is towards the outside of the air duct opening.

[0010] Furthermore, a dust filter is detachably installed at the air duct opening, and the dust filter is detachably connected to the side wall of the air duct opening by a snap fastener.

[0011] Furthermore, the supporting boss is an annular boss, and the annular boss fits into the transition surface of the bottom of the trash can.

[0012] Furthermore, a pressure-edge cover is fastened to the top of the trash can.

[0013] Furthermore, both the lifting motor and the axial flow fan are wired to the corresponding control modules inside the intelligent mobile base.

[0014] Beneficial effects: This utility model has a reasonable design, simple and stable structure, and strong practicality, and has the following beneficial effects:

[0015] 1. Uniform and stable negative pressure, improving bag flatness: Through the combination of axial flow fan, negative pressure chamber and evenly distributed negative pressure holes around the circumference, a uniform and stable negative pressure environment can be formed in the garbage can, driving the garbage bag to fully stretch and tightly fit the can wall, effectively solving the problems of uneven bag laying and corner curling in the existing structure;

[0016] 2. Excellent sealing performance, ensuring reliable bag laying: The axial flow fan is equipped with a sealing gasket on its outer periphery, which, together with the fitting design of the annular support boss with the bottom of the garbage can, reduces negative pressure leakage in the negative pressure chamber, improves adsorption stability, and improves bag laying efficiency.

[0017] 3. Simplified lifting structure and stable and smooth operation: The lifting guide structure adopts cam drive combined with multiple sets of guide cylinders and extended columns. The structure is simple and compact, occupies little space, and improves the stability of the garbage can pallet lifting process, avoiding shaking that affects the bag laying accuracy.

[0018] 4. Reasonable dustproof design to extend equipment life: The air duct opening is equipped with a detachable dustproof filter, which can effectively block dust from entering the axial flow fan, reduce channel blockage, and extend the overall service life of the equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the exploded structure of the trash can tray of this utility model;

[0021] Figure 3 This is a partial cross-sectional structural diagram of the present invention.

[0022] In the diagram: 1-Intelligent mobile base, 2-Automatic lifting structure, 3-Trash can tray, 4-Axial flow fan, 5-Air duct opening, 6-Supporting boss, 7-Trash can, 8-Negative pressure chamber, 9-Negative pressure hole, 10-Pressure edge cover;

[0023] 201-Lifting guide component, 202-Lifting motor, 203-Cam;

[0024] 2011 - Guide tube, 2012 - Extension column. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1:

[0027] Combination Figure 1-3The diagram illustrates an automatic lifting bag-laying structure for a smart trash can, comprising a smart mobile base 1. This smart mobile base 1 is an existing integrated smart device, integrating voice control, gesture control, and an AI control module. Its main control module is connected to the corresponding wiring of the trash can, thereby controlling the smart trash can's movements through these multiple methods. The smart mobile base 1, serving as the load-bearing and moving foundation of the entire structure, has an automatic lifting structure 2 fixedly mounted on its surface. The automatic lifting structure 2, as the core lifting drive component, precisely drives the upper trash can tray 3 to move up and down, thus adapting to different bag-laying heights. Based on bag requirements and waste disposal scenarios, the waste bin tray 3 has an overall cavity structure with an open top. Its interior provides installation space for various bag-laying functional components. An axial flow fan 4 is fixedly installed inside the cavity of the waste bin tray 3 via a fastening structure. The axial flow fan 4 serves as the core power component for generating negative pressure. An air duct 5, matching the size of the axial flow fan 4, is opened on the bottom side wall of the waste bin tray 3, precisely matching the outlet size of the axial flow fan 4 to form a smooth airflow discharge channel. Simultaneously, to achieve dust protection, a detachable dust filter is installed at the air duct 5. This dust filter is detachably connected to the side wall of the air duct 5 via clips. This design effectively blocks... To prevent external dust and debris from entering the axial flow fan 4 during operation, reducing channel blockage and extending the overall service life of the equipment, a support boss 6 is integrally formed on the inner wall of the garbage bin tray 3 cavity. The support boss 6 is used for precise positioning and stable support of the garbage bin 7. Its support surface is flattened to ensure stable contact with the bottom of the garbage bin 7. The garbage bin 7 is embedded in the support boss 6, and is stably installed in the garbage bin tray 3 by the limiting effect of the support boss 6. A pre-set gap is provided between the bottom of the garbage bin 7 and the bottom wall of the garbage bin tray 3 cavity, providing the necessary space for the formation of the negative pressure chamber 8. After the axial flow fan 4 starts working, the specific working principle is as follows: after the axial flow fan 4 starts, it generates outward suction power, which discharges the air in the cavity of the trash can tray 3 (i.e., the negative pressure cavity 8) through the air duct 5, so that a stable negative pressure environment is formed in the negative pressure cavity 8. In order to realize the transfer of negative pressure to the inside of the trash can 7, several negative pressure holes 9 that communicate with the negative pressure cavity 8 are evenly distributed along the circumference of the bottom of the trash can 7. The negative pressure in the negative pressure cavity 8 acts synchronously on the trash bag inside the trash can 7 through these evenly distributed negative pressure holes 9, driving the trash bag to stretch evenly and tightly fit the inner wall of the trash can 7 under the action of negative pressure, ultimately achieving an automatic and flat bag laying effect.

[0028] In this embodiment, the automatic lifting structure 2 specifically includes several sets of lifting guide components 201 fixedly installed on the upper surface of the intelligent mobile base 1. The several sets of lifting guide components 201 are evenly distributed circumferentially along the upper surface of the intelligent mobile base 1 to form a stable guiding support system, providing precise guidance for the subsequent lifting action of the garbage bin tray 3, and avoiding deviation and shaking during the lifting process. A lifting motor 202 is fixedly installed in the central area between the several sets of lifting guide components 201. The lifting motor 202 serves as the core power source for the lifting action, and a cam 203 is fixedly installed on the rotating shaft. The cam 203 rotates synchronously with the rotating shaft of the lifting motor 202, and the outer edge of the cam 203 fits against the bottom of the garbage bin tray 3. When the lifting motor 202 is started, its rotating shaft drives the cam 203 to rotate in a circle. Utilizing the eccentric structural characteristics of the cam 203, it pushes or releases the bottom of the garbage bin tray 3 during the rotation, thereby driving the garbage bin tray 3 to achieve the up and down lifting action.

[0029] The lifting guide component 201 includes a guide cylinder 2011, which is a vertically arranged hollow cavity structure. The inner wall of the cavity is smoothed to reduce sliding friction. An extension column 2012 is slidably arranged inside the cavity of the guide cylinder 2011. The outer diameter of the extension column 2012 is precisely matched with the inner diameter of the guide cylinder 2011. The upper end of the extension column 2012 extends out of the guide cylinder 2011 and is fixedly connected to the bottom of the garbage bin tray 3 by bolts. Through the sliding cooperation between the guide cylinder 2011 and the extension column 2012, the lifting trajectory of the garbage bin tray 3 is precisely limited, ensuring the stability and reliability of the lifting action, thereby adapting to different height bag laying requirements and garbage disposal scenarios.

[0030] In this embodiment, the axial flow fan 4 is fixedly connected to the bottom wall of the garbage can tray 3 cavity by several fastening bolts, so that the axial flow fan 4 and the bottom wall of the garbage can tray 3 cavity form a tight fit, laying the foundation for the sealing of the negative pressure chamber. A sealing gasket is provided between the outer periphery of the axial flow fan 4 and the inner side wall of the garbage can tray 3 cavity to achieve full circumferential sealing of the gap between the two. In addition, the airflow direction of the axial flow fan 4 is directed towards the outside of the air duct opening 5, and this airflow direction setting is precisely adapted to the working principle of negative pressure generation.

[0031] In this embodiment, the supporting boss 6 is an annular boss, which is integrally formed with the inner wall of the trash can tray 3. The annular boss can provide uniform support for the trash can 7 around its entire circumference, preventing the trash can 7 from tilting or shaking due to uneven force after placement. In addition, the annular boss and the bottom transition surface of the trash can 7 fit together. Specifically, the outline of the supporting surface of the annular boss and the outline of the bottom transition surface of the trash can 7 are precisely matched, and there is no obvious gap after the two fit together. This fit can achieve quick positioning of the trash can 7, allowing the user to accurately place the trash can 7 in the preset position without repeated adjustments. On the other hand, it can enhance the sealing between the trash can 7 and the supporting boss 6, reduce the leakage of negative pressure in the negative pressure chamber 8 from the gap between the two, and ensure the stability of the negative pressure environment.

[0032] In this embodiment, a pressing cover plate 10 is fastened to the top of the trash can 7. The pressing cover plate 10 adopts a ring structure design that matches the top contour of the trash can 7. After the pressing cover plate 10 is fastened, its lower surface can closely fit the edge of the trash bag fitted on the top of the trash can 7, forming a uniform circumferential holding force, which firmly fixes the edge of the trash bag to the top of the trash can 7, and avoids the situation where the edge of the trash bag falls off or shifts due to the tension generated by the negative pressure adsorption during the negative pressure bag laying process, ensuring that the trash bag can always maintain a flat and fitted state.

[0033] In this embodiment, both the lifting motor 202 and the axial flow fan 4 are wired to the corresponding control module inside the intelligent mobile base 1. Specifically, by being electrically connected to the control module, and then according to the preset program, the lifting motor 202 can drive the garbage bin tray 3 to a preset height, or the axial flow fan 4 can be started to lay the bag, thereby improving the automation level of the entire equipment.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic lifting bag-laying structure for a smart trash can, comprising a smart mobile base (1), wherein an automatic lifting structure (2) is provided on the upper surface of the smart mobile base (1), characterized in that: The automatic lifting structure (2) is driven to be equipped with a garbage can tray (3). An axial flow fan (4) is fixedly installed in the cavity of the garbage can tray (3). The bottom side wall of the garbage can tray (3) is provided with an air duct (5) that matches the axial flow fan (4). The inner wall of the cavity of the garbage can tray (3) is provided with a support boss (6). A garbage can (7) is embedded in the support boss (6). There is a gap between the bottom of the garbage can (7) and the cavity of the garbage can tray (3), and a negative pressure cavity (8) is formed under the operation of the axial flow fan (4). Several negative pressure holes (9) that communicate with the negative pressure cavity (8) are evenly distributed along the circumference of the bottom of the garbage can (7).

2. The automatic lifting bag-laying structure for a smart trash can according to claim 1, characterized in that: The automatic lifting structure (2) includes several sets of lifting guides (201) fixedly installed on the upper surface of the intelligent mobile base (1), and a lifting motor (202) is provided between the several sets of lifting guides (201). A cam (203) is fixedly installed on the rotating shaft of the lifting motor (202). The cam (203) cooperates with the bottom of the garbage bin tray (3) under the drive of the lifting motor (202). The lifting guide (201) includes a guide cylinder (2011), and an extension column (2012) is slidably disposed in the cavity of the guide cylinder (2011). The extension column (2012) is fixedly connected to the garbage can tray (3).

3. The automatic lifting bag-laying structure for a smart trash can according to claim 2, characterized in that: The axial flow fan (4) is fixedly connected to the bottom wall of the garbage can tray (3) cavity by several fastening bolts, and a sealing gasket is provided between the outer periphery of the axial flow fan (4) and the inner side wall of the garbage can tray (3) cavity. In addition, the airflow direction of the axial flow fan (4) is towards the outside of the air duct (5).

4. The automatic lifting bag-laying structure for a smart trash can according to claim 3, characterized in that: A dust filter is detachably installed at the air duct opening (5), and the dust filter is detachably connected to the side wall of the air duct opening (5) by a buckle.

5. The automatic lifting bag-laying structure for a smart trash can according to claim 4, characterized in that: The supporting boss (6) is an annular boss, and the annular boss fits into the bottom transition surface of the trash can (7).

6. The automatic lifting bag-laying structure for a smart trash can according to claim 5, characterized in that: The top of the trash can (7) is fitted with a pressing cover plate (10).

7. The automatic lifting bag-laying structure for a smart trash can according to claim 6, characterized in that: The lifting motor (202) and the axial flow fan (4) are both connected by wires to the corresponding control modules inside the intelligent mobile base (1).

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