Box cover opening and closing mechanism

Abstract

The invention discloses a box cover opening and closing mechanism. The left and right sides of an opening of a box body are each provided with a long connecting rod and a short connecting rod. The inner end of the long connecting rod and the inner end of the short connecting rod on one side are hinged to the inner side wall, where the long and short connecting rods are located, of the box body. The inner end of the long connecting rod and the inner end of the short connecting rod on the other side are fixed to the inner ends of output shafts of two motors on the same side one to one, wherein the output shafts of the motors extend into the box body. The two motors are fixed to the outer wall of the box body. The left and right sides of the lower surface of a box cover are each provided witha sliding block, the two sliding blocks are installed on the lower surface of the box cover in a front-back sliding manner through a guide mechanism, the outer ends of the two long connecting rods are respectively hinged with the lower surface of the box cover, and the outer ends of the two short connecting rods are respectively hinged to the sliding blocks on the corresponding sides. According to the box cover opening and closing mechanism, automatic opening and closing of the box cover can be achieved, and the box cover can be turned over and slide to the lower rear portion of the box bodyto be opened, so that the box cover and the box body do not collide with or get close to each other, and the inner side of the box cover faces the box body when the box cover is opened.

Description

technical field [0001] The invention relates to the box field, in particular to a box cover opening and closing mechanism. Background technique [0002] The lid of the box needs to be opened and closed frequently. The structure of the existing box lid opening and closing mechanism is: the rear end of the box lid is hinged with the outer side wall of the open rear end of the box body, so that the box lid can be placed on the box after it is turned forward. On the other hand, if the cover is turned over 90 degrees by manual drive, the cover will continue to turn down under the action of gravity and hang behind the box, thereby opening the cover. At this time, the inside of the cover is facing away from the box. . The above-mentioned box cover opening and closing mechanism has the following disadvantages: (1) After the box cover is opened, since the inside of the box cover faces away from the box body and faces the outside, the inside of the box cover is easy to be touched, so...

AI Technical Summary

Problems solved by technology

The above-mentioned box cover opening and closing mechanism has the following disadvantages: (1) After the box cover is opened, since the inside of the box cover faces away from the box body and faces the outside, the inside of the box cover is easy to be touched, so that the inside of the box cover and the touched objects are easy to contaminate each other , In addition, when the box body stores frozen or high-temperature objects, the cold or heat inside the box cover can easily hurt people; (2) When the box cover is heavy, it is laborious to open the box cover manually; (3) When the cover is turned upside down and hung behind the box, it is easy to collide with the box due to inertia, so that the box cover and the box are easily damaged, and there is also a potential safety hazard of pinching people

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