TECHNICAL FIELD

The present disclosure relates to the field of articles of daily use, in particular to a cover turning mechanism and a garbage can thereof.

BACKGROUND

An induction garbage can is controlled by a circuit chip and is composed of infrared detection device and mechatronic drive system. The cover will automatically open as long as the object is close to the induction area, and the cover will automatically close after the object or hand leaves the induction area for a few seconds. The cover is powered by the battery without connecting to an external power supply, and the power consumed by the cover is low. With a streamlined inductive cover which is composed of infrared detection device and microcomputer, it is flexible and convenient for the user to operate the garbage can and throw out the garbage without manual or foot steps required. However, the existing induction garbage can is generally driven by a DC motor, some existing designs achieve precise position control by using a stepping motor. When the stepping motor drives the cover to turn, the stuck, shaking and other unstable situations which influence the use experience will occur easily.

SUMMARY

The present disclosure intends to address at least one of the technical problems existing in the prior art. Therefore, the present disclosure provides a cover turning mechanism which can make the cover turn smoothly.

The present disclosure also provides a garbage can with the above cover turning mechanism.

A cover turning mechanism in accordance with the first aspect of the embodiments of the present disclosure, including:

a housing provided with a motor, and a rotating rod rotatably connected to the housing;

a cover covering on the housing, and the cover is fixedly connected with the rotating rod;

a first connecting rod fixedly connected to the motor;

a second connecting rod, one end of the second connecting rod is rotatably connected to first connecting rod, and other end is rotatably connected to the cover;

wherein a torsional spring is arranged on the rotating rod, the torsional spring bears against an inner wall of the housing.

The cover turning mechanism in accordance with the embodiments of the present disclosure has the following beneficial effect: the motor drives the first connecting rod to rotate so that the second connecting rod is driven to swing, and then the second connecting rod drives the cover to rotate around the axis of the rotating rod thereby the cover is opened or closed. In the process of opening or closing the cover, the torsional spring bears against an inner wall of the housing and provides a supporting torque, while eliminating the gap forming when the first connecting rod act on the second connecting rod. The forces at multiple nodes are in relatively balanced state which makes it easy and accurate for the motor to control the angle, and makes the whole process of opening or closing the cover more smoothly.

In some embodiments of the present disclosure, the housing is provided with an installation seat, and the installation seat is provided with a first concave hole. The first connecting rod is provided with a first convex, and the first convex is embedded into the first concave hole and rotates in the first concave hole. The first convex is in clearance fit with the first concave hole. The clearance fit avoids a hindrance caused by the mounting seat to the first connecting rod when the first connecting rod is driven to swing, and makes the first connecting rod swing more smoothly.

In some embodiments of the present disclosure, a first rotating shaft is provided at one end of the second connecting rod, the first connecting rod is provided with a first perforation, the first rotating shaft is inserted in the first perforation, and the first rotating shaft is in interference fit with the first perforation. The gap between the first rotating shaft and the first perforation is reduced, such that in the process of the first connecting rod driving the second connecting rod to swing, it will avoid the gap causing the structural instability between the first connecting rod and the second connecting rod, and improve the stability when the cover is turning.

In some embodiments of the present disclosure, a second perforation is provided at a bottom of the cover, the rotating rod is inserted into the second perforation, and the rotating rod is in interference fit with the second perforation. The rotating rod is inserted in the second perforation via the interference fit. When the second connecting rod drives the cover to turn, the rotating rod rotates in the housing, and the interference fit causes the rotating rod to drive the torsional spring to rotate and causes the torsional spring to be in contact with the inner wall of the housing. The stability of the cover is improved during rotation and the stuck situation is prevented.

In some embodiments of the present disclosure, a second rotating shaft is provided at one end of the second connecting rod. A second concave hole is arranged on the cover, the second rotating shaft is inserted into the second concave hole and rotates relative to the second concave hole, and the second rotating shaft is in clearance fit with the second concave hole.

In some embodiments of the present disclosure, a clamping block is arranged on the inner wall of the housing and a clamping slot is formed between a lower part of the clamping block and the inner wall of the housing. A hook is arranged at an end of the torsional spring which bears against the inner wall of the housing. The hook is clamped into the clamping slot so that the torsional spring can be clamped with the clamping block. In the closing process of the cover, the rotating rod rotates and the torsional spring is reset. In the process of reset, the hook is inserted into the clamping slot, and the hook is connected with the clamping block to position the torsional spring.

In some embodiments of the present disclosure, the housing is provided with a platform which bears against the first connecting rod so that the first connecting rod stops swinging. The first connecting rod swings by the driving of motor, the cover turns up through the second connecting rod. In the process of turning up, the first connecting rod is in contact with a edge of the platform balance, such that the first connecting rod cannot continue to swing, thereby the turning angle of the cover is limited to prevent the cover from turning excessively. At the same time, it will prevent the first connecting rod and the second connecting rod from reversing and ensure the normal movement of the structure.

A garbage can in accordance with the second aspect of the embodiments of the present disclosure, the garbage can includes anyone cover turning mechanism as mentioned above.

The garbage can in accordance with the embodiments of the present disclosure has the following beneficial effect: the motor drives the first connecting rod to rotate so that the second connecting rod is driven to swing, and then the second connecting rod drives the cover to rotate around the axis of the rotating rod thereby the cover is opened. In the process of opening or closing the cover, the torsional spring bears against the inner wall of the housing and provides a supporting torque, thereby the whole process of opening or closing the cover is more smoothly.

Additional aspects and advantages of the present disclosure will be described in the following description, which will become apparent from the description below or be known through the practice of the present disclosure.

