Flip cover structure of garbage can and garbage can

By setting up a connecting seat and hinged structure on the inner side of the lid of the smart trash can, and using the top lever arm and the driving component to drive the lid to open and close, the problem of unstable flip structure of the existing smart trash can is solved, and the stable opening and closing and efficient use of the lid can be achieved.

CN222892504UActive Publication Date: 2025-05-23JIANGMEN HUAJIANG IND CO LTD
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Patent Information

Application Number
CN202421905391.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-07
Publication Date
2025-05-23
Estimated Expiration
2034-08-07

AI Technical Summary

Technical Problem

The flip structure of the existing smart trash can is unstable when opening and closing, and shakes greatly.

Method used

A flip structure including a base, a cover body and an opening and closing driving mechanism is designed. By providing a connecting seat on the inner side of the cover body, a first connecting part and a second connecting part are provided on the connecting seat, and a stable opening and closing of the cover body is achieved through the top rod arm and the driving assembly.

Benefits of technology

The stable opening and closing of the cover is achieved, reducing shaking during opening and closing, and improving the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a flip cover structure of a garbage can and the garbage can. The flip cover structure of the garbage can comprises a base, a cover body and an opening and closing driving mechanism, a connecting base is arranged on the inner side face of the cover body and provided with a first connecting part and a second connecting part. The cover body is arranged at the top of the base and is hinged to the base through a first connecting part; the opening and closing driving mechanism comprises an ejector rod arm and a driving assembly. One end of the ejector rod arm is hinged with the second connecting part, and the other end is hinged with the driving assembly; the driving assembly is arranged on the base and used for driving the ejector rod arm to swing, and then the cover body is opened and closed on the base. When the cover body is opened, the position of the second connecting part is higher than that of the first connecting part. According to the cover turning structure of the garbage can, the driving assembly drives the ejector rod arm to swing upwards or downwards so as to open or close the cover body, and the ejector rod arm can provide enough supporting force to prevent the cover body from shaking.
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Description

Technical Field

[0001] The utility model relates to the field of trash cans, in particular to a trash can flip cover structure and the trash can. Background Art

[0002] Trash cans are an indispensable household item in modern life. With the continuous progress of society, people have a higher pursuit of convenience and design of furniture products, and the intelligence of trash cans is also constantly advancing. At present, there are various smart trash cans with automatic opening and closing lids on the market. However, most of the trash cans have a flip cover structure that shakes a lot when opening and closing the lid, and is unstable when the lid is opened and closed. Utility Model Content

[0003] Based on this, the purpose of the utility model is to provide a trash can with a flip cover structure and a trash can, which has a simple structure and can realize stable opening and closing of the cover.

[0004] A flip cover structure for a trash can, comprising a base, a cover body and an opening and closing drive mechanism; a connecting seat is provided on the inner side surface of the cover body, and the connecting seat is provided with a first connecting portion and a second connecting portion; the cover body is arranged on the top of the base and is hinged to the base through the first connecting portion; the opening and closing drive mechanism comprises a push rod arm and a drive assembly; one end of the push rod arm is hinged to the second connecting portion, and the other end is hinged to the drive assembly; the drive assembly is arranged on the base, and is used to drive the push rod arm to swing, thereby realizing the opening and closing action of the cover body on the base; when the cover body is opened, the position of the second connecting portion is higher than that of the first connecting portion.

[0005] The lid flip structure of the trash can described in the utility model drives the push rod arm to swing upward or downward to open or close the lid body through the driving component. When the lid body is opened, the position of the second connection part is higher than the position of the first connection part, indicating that the first connection part and the second connection part are located at different positions on the connection seat. Through the design of the first connection part and the second connection part on the connection seat, the second connection part is set at an appropriate position, so that the driving component only needs to do a small amount of work to make the push rod arm provide sufficient thrust to open the lid, which is convenient for opening the lid. At the same time, after opening the lid, the push rod arm can provide sufficient support force to the lid body to prevent the lid body from shaking.

[0006] Furthermore, the base is an annular structure, and a throwing port is formed in the center of the annular structure of the base, and the throwing port is used for garbage to pass through; an inner cavity is provided inside the base; a through hole connected to the inner cavity is provided on the top of the base; the through hole allows the push rod arm to pass through; the driving assembly is arranged in the inner cavity of the base; one end of the push rod arm is hinged to the second connecting part, and the other end passes through the through hole and is hinged to the driving assembly. Throw the garbage into the trash can through the throwing port, and the driving assembly is arranged in the inner cavity of the base. The push rod arm passes through the through hole and is hinged to the second connecting part, so that the driving arm can swing to realize the opening and closing action of the cover body on the base.

[0007] Furthermore, a third connection part is provided on the top of the base, the third connection part is away from the throwing port and is located outside the through hole; the first connection part is hinged to the third connection part. By arranging the third connection part on the base and hinged to the first connection part, the base and the cover are hinged.

[0008] Furthermore, a groove adapted to the connecting seat is provided on the top of the base; the third connecting portion and the through hole are provided on the groove; and the connecting seat is arranged at the edge of the inner side surface of the cover. The utility model arranges the connecting seat at the edge of the inner side surface of the cover, and provides a groove adapted to the connecting seat on the top of the base, so that after the cover is closed, the connecting seat is located in the groove, so that the closure between the cover and the base is better, and the appearance after closing is more beautiful. By designing the third connecting portion and the through hole on the groove, and designing the first connecting portion and the second connecting portion on the connecting seat, the positions of the top rod arm and the second connecting portion are appropriate, which not only ensures that after the cover is opened, there is enough space to throw the garbage into the trash can through the throwing port, but also ensures the support strength of the cover and the mechanical stability when the cover is opened.

[0009] Furthermore, a structural reinforcement strip is provided on the inner side of the cover, and two ends of the structural reinforcement strip are respectively connected to the connecting seat and the outer edge of the cover, so as to strengthen the structural strength of the cover.

[0010] Furthermore, the first connection part is hinged with the third connection part through a first rotating shaft; the push rod arm is hinged with the second connection part through a second rotating shaft; the first rotating shaft is provided with a first bending part, and the second rotating shaft is provided with a second bending part; the first bending part and the second bending part are limited and fixed to the connecting seat. Since the first bending part and the second bending part are limited and fixed to the connecting seat, on the one hand, the first rotating shaft and the second hinge part can be prevented from being separated, and the structural strength of the first rotating shaft and the second rotating shaft provided on the connecting seat can be strengthened, thereby strengthening the structural strength of the connecting seat and the cover body; on the other hand, when the cover body is opened, the cover body has a tendency to close under the influence of gravity. In addition to the supporting effect of the push rod arm on the cover body, since the first bending part and the second bending part are limited and fixed on the connecting seat, the fulcrum with the connecting seat is increased, and the connecting seat can be provided with a force to prevent the closing tendency, which is beneficial to improve the structural stability of the cover body when it is opened.

[0011] Furthermore, the driving assembly includes a driving motor, a gear box, and a driving arm; the driving motor is transmission-connected to the gear box; one end of the driving arm is fixedly mounted on the output shaft of the gear box, and the other end is hinged to the other end of the push rod arm; the driving motor drives the driving arm to drive the push rod arm to swing, thereby realizing the opening and closing action of the cover body on the base.

[0012] Furthermore, the driving assembly also includes a torsion spring, which is sleeved on the output shaft of the gear box, one end of the torsion spring is fixed to the gear box, and the other end is arranged on one end of the driving arm.

[0013] Furthermore, a protrusion is provided at the lower end of the push rod arm, and when the push rod arm is swung up to a preset position, the protrusion abuts against the base, so that the push rod arm cannot continue to rotate, thereby limiting the opening angle of the cover body.

[0014] Furthermore, a bending portion is provided at the lower end of the push rod arm to prevent the lower end of the driving arm from interfering with the output shaft of the gear box when the driving arm drives the push rod arm to swing.

[0015] Further, a skipping tooth protection structure is provided in the gearbox, and the skipping tooth protection structure includes an inner ring tooth and an outer ring tooth arranged coaxially; the inner ring tooth is fixedly sleeved on the output shaft of the gearbox, and the outer ring tooth is sleeved on the outer periphery of the inner ring tooth; the outer side of the outer ring tooth is connected to the drive motor through a gear set provided in the gearbox; wherein, a plurality of protrusions are provided on the outer periphery of the inner ring tooth, and a plurality of limiting grooves are provided on the inner periphery of the outer ring tooth; the protrusions are clamped in the limiting grooves, and when the cover body is opened and subjected to an excessive force opposite to the opening of the cover, the outer ring tooth can rotate relative to the inner ring tooth. By providing the skipping tooth protection structure, when the cover body is subjected to an excessive force opposite to the opening of the cover so that the cover body cannot be opened, that is, when the rotation of the inner ring tooth is limited, the protrusions can break through the limiting effect of the limiting grooves and slip, so that the outer ring tooth and the inner ring tooth slip, and the outer ring tooth can still rotate idly, thereby protecting the drive motor.

[0016] The utility model also provides a trash can, including any of the above-mentioned trash can flip cover structures. The trash can adopting the trash can flip cover structure of the utility model only needs a small amount of work to make the push rod arm provide sufficient thrust to open the cover, which is convenient for opening the cover. At the same time, after opening the cover, the push rod arm can provide sufficient support force to the cover body to prevent the cover body from shaking.

[0017] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the flip cover structure of the trash can of the utility model;

[0019] Figure 2 It is a cross-sectional view of the flip cover structure of the trash can of the utility model;

[0020] Figure 3 is a schematic diagram of the structure of the inner side of the cover;

[0021] Figure 4 It is a schematic diagram of the internal structure of the connecting seat;

[0022] Figure 5 is a schematic diagram of the structure of the top of the base;

[0023] Figure 6 A schematic diagram of the structure of the cover body and the opening and closing drive mechanism from one perspective;

[0024] Figure 7 for Figure 6 The enlarged schematic diagram of point A in the middle;

[0025] Figure 8 A schematic diagram of the structure of the cover body and the opening and closing drive mechanism from another perspective;

[0026] Fig. 9 for Figure 8 The enlarged schematic diagram of point B in the middle;

[0027] Fig.10 It is a structural schematic diagram of the opening and closing drive mechanism;

[0028] Fig.11 Schematic diagram of the transmission structure inside the drive motor and gearbox. DETAILED DESCRIPTION

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms first, second, third, etc. in the specification and claims are only used for the purpose of describing the same technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, nor necessarily describing the order or time sequence. The terms are interchangeable where appropriate. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0031] Similarly, the term "connection" is also used in the specification and claims, which should not be interpreted as limited to direct connection. Therefore, the expression "device A is connected to device B" should not be limited to the device A being directly connected to device B in the device or system, which means that there is a path between device A and device B, which may be a path including other devices or tools.

[0032] The utility model provides a cover structure for a trash can, please refer to Figure 1-Figure 3 and Figure 5-Figure 10 , including a base 1, a cover 2, and an opening and closing driving mechanism 3; the cover 2 is arranged on the top of the base 1 and is fixedly hinged with the base 1; wherein, please refer to Figure 2 and Figure 3A connecting seat 21 is provided on the inner side surface of the cover body 2, and a first connecting portion 211 and a second connecting portion 212 are provided on the connecting seat 21; the cover body 2 is hinged to the base 1 through the first connecting portion 211; the opening and closing driving mechanism 3 includes a push rod arm 31 and a driving assembly; one end of the push rod arm 31 is hinged to the second connecting portion 212; the other end is hinged to the driving assembly; the driving assembly is arranged on the base 1, and is used to drive the push rod arm 31 to swing up and down, thereby realizing the opening and closing action of the cover body 2 on the base 1; when the cover body 2 is opened, the hinge position of the push rod arm 31 and the cover body 2 is higher than the hinge position of the cover body 2 and the base 1; that is, when the cover body 2 is opened, the position of the second connecting portion 212 is higher than the position of the first connecting portion 211.

[0033] The lid structure of the trash can of the utility model drives the top lever arm 31 to swing upward or downward through the driving assembly to open or close the lid body 2. When the lid body 2 is opened, please refer to Figure 1 The position of the second connection part 212 is higher than that of the first connection part 211, indicating that the first connection part 211 and the second connection part 212 are located at different positions on the connection seat 21. Through the design of the first connection part 211 and the second connection part 212 on the connection seat, the setting position of the second connection part 212 is appropriate, so that the driving component only needs to do a small amount of work to enable the push rod arm 31 to provide sufficient thrust for opening the cover, which is convenient for opening the cover. At the same time, after opening the cover, the push rod arm 31 can provide sufficient supporting force for the cover body 2 to prevent the cover body from shaking.

[0034] In this embodiment, the base 1 is arranged on the trash can, see Figure 5 The base 1 is an annular structure, and a throwing port 11 is formed in the center of the annular structure of the base 1. The throwing port 11 is used for garbage to pass through, so as to throw the garbage into the trash can. An inner cavity is provided inside the base 1, and a through hole 12 connected to the inner cavity is provided on the top of the base 1. The through hole 12 allows the push rod arm 31 to pass through; the driving assembly is arranged in the inner cavity of the base 1; one end of the push rod arm 31 is hinged to the second connecting portion 212 of the cover body 2, and the other end passes through the through hole 12 and is hinged to the driving assembly. In this embodiment, there is a large gap between the through hole 12 and the push rod arm 31, so that when the push rod arm 31 swings up and down, there is no interference between the push rod arm 31 and the through hole 12, which helps the push rod arm 31 to swing smoothly.

[0035] Preferably, the shape of the cover 2 matches the throwing opening 11, and when the cover 2 is closed, the throwing opening 11 can be completely covered, making the trash can look beautiful. A third connecting portion 13 is provided on the top of the base 1, and the third connecting portion 13 is located outside the through hole 12 and relatively far away from the throwing opening 11; the first connecting portion 211 is hinged to the third connecting portion 13; so as to realize the hinge connection between the base 1 and the cover 2.

[0036] In this example, see Figure 5The top of the base 1 is provided with a groove 14 adapted to the connection seat 21; the groove 14 is provided with a third connection portion 13 and a through hole 12. Figure 3 , the connection seat 21 is arranged at the edge of the inner side of the cover body 2. After the cover body 2 is closed, the connection seat 21 is located in the groove 14, so that the closure between the cover body 2 and the base 1 is better, and the appearance after closing is more beautiful. By designing the third connection part 13 and the through hole 12 on the groove 14, and designing the first connection part 211 and the second connection part 212 on the connection seat 21, the position of the top rod arm 31 and the second connection part 212 is appropriate, which not only ensures that after the cover body 2 is opened, there is enough space to throw the garbage into the trash can through the throwing port 11, but also ensures the support strength of the cover body 2 and the mechanical stability when the cover body 2 is opened.

[0037] Preferably, in this embodiment, please refer to Figure 3 There are two first connection parts 211 and one second connection part 212. The two first connection parts 211 and one second connection part 212 are arranged at a triangular point on the connection base 21 of the cover body 2; please refer to Figure 5 There are two third connection parts 13 and one through hole 12. The two third connection parts 13 and one through hole 12 are arranged at triangular points on the groove 14 of the base 1. In this way, the two first connection parts 211 are hinged to the two third connection parts 13 respectively, and after the top rod arm passes through the through hole and is hinged to the second connection part 212, when the cover body 2 is opened, the stability of the triangular point is used to further improve the mechanical stability of the cover body 2 after it is opened.

[0038] In this example, see Figure 4The first connecting part 211 and the third connecting part 13 are hinged through the first rotating shaft 213; the top rod arm 31 and the second connecting part 212 are hinged through the second rotating shaft 214; the first rotating shaft 213 is provided with a first bending part 2131, and the second rotating shaft 214 is provided with a second bending part 2141; the first bending part 2131 and the second bending part 2141 are fixedly limited inside the connecting seat 21. Since the first bending part 2131 and the second bending part 2141 are fixed to the connection seat 21, on the one hand, the first rotating shaft 213 and the second hinge 214 can be prevented from being separated, and the structural strength of the first rotating shaft 213 and the second rotating shaft 214 set on the connection seat 21 is strengthened, thereby strengthening the overall structural strength of the connection seat 21 and the cover body 2; in the process of opening the cover body 2, the cover body 2 has a tendency to close under the influence of gravity. In addition to the upward movement of the top rod arm 34 to open the cover body 2 and provide support for the cover body 2, since the first bending part 2131 and the second bending part 2141 are fixed to the connection seat, the fulcrum with the connection seat 21 is increased, and the first bending part 2131 and the second bending part 2141 can provide a force to prevent the connection seat 21 from closing, which is conducive to smoother and more stable opening of the cover body. In this embodiment, the first rotating shaft 213 and the second rotating shaft 214 are hidden and arranged on the inner side of the connection seat 21, making the appearance of the cover body 2 more beautiful.

[0039] In this example, see Figure 3 The inner side of the cover 2 is also provided with a structural reinforcement strip 22, and the two ends of the structural reinforcement strip 22 are respectively connected to the connecting seat 22 and the outer edge of the cover 2; the structural strength of the cover 2 is strengthened by the structural reinforcement strip 22. Specifically, taking the opening of the cover 2 as an example, the connecting seat 2 is arranged at the bottom middle edge position of the inner side of the cover 2, and the structural reinforcement strip 22 is respectively arranged on the upper part of the connecting seat 21 and arranged horizontally, and the two ends of the structural reinforcement strip 22 are respectively connected to the upper part of the connecting seat 22 and the outer edge of the side of the cover 2, so as to further improve the mechanical stability of the cover 2 when it is opened.

[0040] In addition, to reduce the impact between the cover 2 and the base 1 when closing, please refer to Figure 3 A plurality of buffer pads 23 are provided on the cover body 2. Preferably, the buffer pads 23 are provided on the inner side surface of the cover body 2 away from the connecting seat 21. At the same time, the buffer pads 23 are made of elastic materials such as polyurethane and silicone to reduce abnormal noise caused by the impact between the cover body 2 and the base 1 when the cover body 2 is closed.

[0041] In this example, see Figure 6-Figure 10The driving assembly includes a driving motor 32, a gear box 33, and a driving arm 34; the driving motor 32 is transmission-connected to the gear box 33; one end of the driving arm 34 is fixedly mounted on the output shaft 331 of the gear box 33, and the other end is hinged to the other end of the push rod arm 31; the driving motor 32 drives the driving arm 34 to drive the push rod arm 31 to swing, thereby realizing the opening and closing action of the cover body 2 on the base 1; and through the design of the connecting seat 21 of the above-mentioned upper cover 2 and the groove 14 of the base 1, the driving assembly can open the cover body 2 in a more labor-saving way.

[0042] The driving motor 32 and the gear box 33 are fixed in the inner cavity of the base 1, and one end of the driving arm 34 is fixedly sleeved on the output shaft 331 of the gear box 33, and the driving arm 34 is relatively perpendicular to the output shaft 331. When the cover 2 is closed, the driving arm 34 extends downwardly in a direction toward the throwing port, so that the other end of the driving arm 34 is located below the output shaft 331. When the driving motor 32 drives the driving arm 34, the driving arm 34 can rotate at a sufficient angle to drive the driving arm 34 to swing upward, thereby achieving the purpose of opening the cover 2.

[0043] See also Figure 7 , Fig. 9 and Fig.10 The lower end of the push rod arm 31 is provided with a bent portion 311 on the side close to the driving arm 34, which is used to prevent the lower end of the driving arm 34 from interfering with the output shaft 331 of the gear box 33 when the driving arm 34 drives the push rod arm 31 to swing, thereby affecting the opening and closing of the cover body 2. The lower end of the push rod arm 31 is provided with a protrusion 312 on the side away from the driving arm 34. When the push rod arm 31 swings up to a preset position, the protrusion 312 abuts against the base 1, so that the push rod arm 31 cannot continue to swing, thereby limiting the opening angle of the cover body 2.

[0044] The driving assembly 3 further includes a torsion spring 35, which is sleeved on the output shaft 331 of the gear box 33, one end of the torsion spring 35 is fixed on the gear box 33, and the other end is arranged on one end of the driving arm 34. One end of the driving arm 34 is provided with a tooth groove 341, and the other end of the torsion spring 35 is arranged on the tooth groove 341. When the cover body 2 is closed, the torsion spring is in a deformation energy storage state, that is, when the cover body 2 is closed, the other end of the torsion spring 35 abuts against the driving arm 34 and produces a certain degree of elastic deformation, thereby providing a driving force for the driving arm 34 to drive the push rod arm 34 to swing upward within a certain swing range, which helps to assist the cover body 2 when it is opened, and improves the efficiency of the cover opening action.

[0045] See also Fig.11, a gear box 33 is provided with a skipping tooth protection structure, which includes an inner ring gear 332 and an outer ring gear 333 arranged coaxially; the inner ring gear is fixedly sleeved on the output shaft 331, and the outer ring gear 333 is sleeved on the outer periphery of the inner ring gear 332; the outer side of the outer ring gear 333 is connected to the output shaft of the driving motor 32 through a gear set 334 arranged in the gear box 33. Among them, a plurality of protrusions 3321 are arranged on the outer periphery of the inner ring gear 332, and a plurality of limiting grooves 3331 are arranged on the inner periphery of the outer ring gear 333; the protrusions 3321 are clamped in the limiting grooves 3331, and when the cover body 2 is subjected to an excessively large force opposite to the opening of the cover so that the cover body 2 cannot be opened, the outer ring gear 333 can rotate relative to the inner ring gear 332. For example, when the cover body 2 is opened, it is blocked by external obstacles and cannot be opened normally. The rotation of the output shaft 331 and the inner ring gear 332 is restricted. The protrusion 3321 can break through the limiting effect of the limiting groove 3331 and slip, causing the outer ring gear 333 and the inner ring gear 332 to slip. The outer ring gear 332 can still idle, thereby protecting the drive motor 32.

[0046] In this embodiment, a controller and a sensor component are also provided on the base 1. The controller is connected to the drive motor 32 and controls the drive motor 32 to open and close the cover body 2. The sensor component is used to realize human hand sensing operation and feedback signals to the controller according to different human hand movements to realize different functions.

[0047] This embodiment also provides a trash can, including the above-mentioned trash can flip cover structure. The trash can of this embodiment only needs a small amount of work to enable the push rod arm 31 to provide sufficient thrust to open the cover, which is convenient for opening the cover. At the same time, after opening the cover, the push rod arm 31 can provide sufficient support force to the cover body 2 to prevent the cover body from shaking, so that when throwing garbage into the trash can, the user experience is better.

[0048] The flip cover structure of the trash can of this embodiment can realize opening the cover in a more labor-saving manner and extend the life of the motor through structural design, while also taking into account the aesthetics of the cover.

[0049] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.

Claims

1. A cover structure for a trash can, characterized in that: It comprises a base, a cover body and an opening and closing driving mechanism; a connecting seat is arranged on the inner side surface of the cover body, and the connecting seat is provided with a first connecting part and a second connecting part; the cover body is arranged on the top of the base and is hinged to the base through the first connecting part; the opening and closing driving mechanism comprises a push rod arm and a driving assembly; one end of the push rod arm is hinged to the second connecting part, and the other end is hinged to the driving assembly; the driving assembly is arranged on the base, and is used to drive the push rod arm to swing, thereby realizing the opening and closing action of the cover body on the base; when the cover body is opened, the position of the second connecting part is higher than the position of the first connecting part.

2. The cover structure of the trash can according to claim 1, characterized in that: The base is an annular structure, and a throwing port is formed in the center of the annular structure of the base, and the throwing port is used for garbage to pass through; an inner cavity is provided inside the base; a through hole connected to the inner cavity is provided on the top of the base; the through hole allows the push rod arm to pass through; the driving assembly is arranged in the inner cavity of the base; one end of the push rod arm is hinged to the second connecting part, and the other end passes through the through hole and is hinged to the driving assembly.

3. The cover structure of the trash can according to claim 2, characterized in that: A third connection portion is provided on the top of the base, and the third connection portion is away from the throwing port and located outside the through hole; the first connection portion is hinged to the third connection portion.

4. The cover structure of the trash can according to claim 3, characterized in that: The top of the base is provided with a groove adapted to the connecting seat; the third connecting portion and the through hole are provided on the groove; and the connecting seat is arranged at an edge position of the inner side surface of the cover body.

5. The cover structure of the trash can according to claim 4, characterized in that: The inner side surface of the cover body is also provided with a structural reinforcement strip, and the two ends of the structural reinforcement strip are respectively connected to the connecting seat and the outer edge of the cover body; the first connecting part and the third connecting part are hinged through a first rotating shaft; the top rod arm and the second connecting part are hinged through a second rotating shaft; the first rotating shaft is provided with a first bending part, and the second rotating shaft is provided with a second bending part; the first bending part and the second bending part are limited and fixed to the connecting seat.

6. The cover structure of the trash can according to claim 1, characterized in that: The driving assembly includes a driving motor, a gear box, and a driving arm; the driving motor is transmission-connected to the gear box; one end of the driving arm is fixedly mounted on the output shaft of the gear box, and the other end is hinged to the other end of the push rod arm; the driving motor drives the driving arm to swing the push rod arm, thereby realizing the opening and closing action of the cover body on the base.

7. The cover structure of the trash can according to claim 6, characterized in that: The driving assembly further comprises a torsion spring, which is sleeved on the output shaft of the gear box, one end of the torsion spring is fixed on the gear box, and the other end is arranged on one end of the driving arm.

8. The cover structure of the trash can according to claim 6, characterized in that: A protrusion is provided at the lower end of the push rod arm, and when the push rod arm is swung up to a preset position, the protrusion abuts against the base; a bending portion is provided at the lower end of the push rod arm, which is used to prevent the lower end of the driving arm from interfering with the output shaft of the gear box when the driving arm drives the push rod arm to swing.

9. The cover structure of the trash can according to claim 6, characterized in that: A tooth skipping protection structure is provided in the gear box, and the tooth skipping protection structure includes an inner ring tooth and an outer ring tooth arranged coaxially; the inner ring tooth is fixedly sleeved on the output shaft of the gear box, and the outer ring tooth is sleeved on the outer periphery of the inner ring tooth; the outer side of the outer ring tooth is transmission-connected with the drive motor through a gear set provided in the gear box; wherein, a plurality of protrusions are circumferentially provided on the outer periphery of the inner ring tooth, and a plurality of limiting grooves are provided on the inner periphery of the outer ring tooth; the protrusions are clamped in the limiting grooves, and when the cover body is opened and subjected to an excessively large force opposite to opening the cover, the outer ring tooth can rotate relative to the inner ring tooth.

10. A trash can, characterized in that: A flip cover structure for a trash can comprising any one of claims 1-9.