阅读说明：本技术 一种箱盖开闭机构 (Case lid opening and closing mechanism ) 是由 鲁怀敏 周立峰 杨平 于 2020-05-15 设计创作，主要内容包括：本发明公开了一种箱盖开闭机构,在箱体敞口的左右两侧分别设有一根长连杆和一根短连杆,一侧的长连杆和短连杆的内端分别与所在侧的箱体内侧壁相铰接,而另一侧的长连杆和短连杆的内端分别与位于同一侧的伸入至箱体中的两个电机的输出轴内端一对一相固定,两个电机固定于箱体的外侧壁上,在箱盖下表面的左右两侧分别设有一个滑块,两个滑块分别通过导向机构可前后滑动的安装于箱盖的下表面上,两个长连杆的外端分别与箱盖下表面相铰接,两个短连杆的外端分别与对应侧的滑块相铰接。上述箱盖开闭机构能实现箱盖的自动开闭,并且能使箱盖翻转且向着箱体后下方滑动着打开,从而使箱盖不会与箱体相碰撞对夹,另外,能使箱盖打开后箱盖内侧对着箱体。(The invention discloses a box cover opening and closing mechanism, wherein a long connecting rod and a short connecting rod are respectively arranged on the left side and the right side of an opening of a box body, the inner ends of the long connecting rod and the short connecting rod on one side are respectively hinged with the inner side wall of the box body on the side where the long connecting rod and the short connecting rod are arranged, the inner ends of the long connecting rod and the short connecting rod on the other side are respectively fixed with the inner ends of output shafts of two motors which are positioned on the same side and extend into the box body in a one-to-one mode, the two motors are fixed on the outer side wall of the box body, a sliding block is respectively arranged on the left side and the right side of the lower surface of a box cover, the two sliding blocks are respectively arranged on the lower surface of the box cover in. The box cover opening and closing mechanism can realize automatic opening and closing of the box cover, and can enable the box cover to turn over and slide towards the rear lower part of the box body to be opened, so that the box cover cannot collide with the box body and oppositely clamp the box body, and in addition, the inner side of the box cover faces the box body after the box cover is opened.)

1. The utility model provides a case lid opening and closing mechanism which characterized in that: the left side and the right side of the opening of the box body are respectively provided with a long connecting rod and a short connecting rod positioned behind the long connecting rod, the inner ends of the long connecting rod and the short connecting rod on one side of the opening of the box body are respectively hinged with the inner side wall of the box body on the side where the long connecting rod and the short connecting rod are positioned, so that the long connecting rod and the short connecting rod on the side can swing back and forth, the inner ends of the long connecting rod on the side are hinged below the middle part of the corresponding side of the opening of the box body, and the inner ends of; the inner ends of the long connecting rod and the short connecting rod on the other side of the opening of the box body are respectively fixed with the inner ends of output shafts of two motors which are positioned on the same side and extend into the box body one by one, the two motors are fixed on the outer side wall of the box body, so that the long connecting rod and the short connecting rod on the side can swing back and forth under the drive of the motors, a sliding block is respectively arranged on the left side and the right side of the lower surface of the box cover, the two sliding blocks are respectively arranged on the lower surface of the box cover in a front-back sliding mode through a guide mechanism, the outer ends of the two long connecting rods are respectively hinged with the front parts of the corresponding sides of the lower surface of the box cover, the outer ends of the two short connecting rods are; when the cover is closed, the two motors rotate forward, the cover can be turned over on the opening of the box body forward under the driving of the long connecting rod and the short connecting rod which are turned over forward, after the cover is closed, the two long connecting rods and the two short connecting rods can be retracted in the box body, and the two sliding blocks can slide to the rear part of the cover; when uncapping, the equal antiport of two motors, the case lid can overturn backward under the drive of the long connecting rod and the short connecting rod of upset backward and leave the box uncovered, this moment because the case lid rear portion is lifted under the effect of short connecting rod and not leaned on with the uncovered back of box along the counterbalance, make the case lid can also slide towards box rear below under the support guide of two sliders at the in-process of upset backward, thereby make the case lid can overturn to erectting, and hang in the rear of box, the case lid inboard faces the box this moment, two sliders all can slide to the front portion of case lid.

2. A lid opening and closing mechanism according to claim 1, wherein: the short connecting rod is a U-shaped connecting rod, when the box cover is opened to be erected and hung at the rear of the box body, the U-shaped connecting rod can be overturned to be buckled on the opened rear edge of the box body, and therefore the opened rear edge of the box body can be avoided.

3. A lid opening and closing mechanism according to claim 1 or 2, wherein: the structure of the guide mechanism is as follows: the lower surface of the box cover is provided with a guide groove which moves forwards and backwards, a sliding rod which moves forwards and backwards is arranged in the guide groove, and the sliding block is provided with a guide hole through which the sliding rod can pass; the slider is blocked in the guide groove to the slide bar passes the slider, and the slider can receive the front and back direction of guide groove and slide bar, and the slide bar can prevent that the slider breaks away from the guide groove.

4. A lid opening and closing mechanism according to claim 1 or 2, wherein: the two motors are both motors with band-type brakes.

Technical Field

The invention relates to the field of boxes, in particular to a box cover opening and closing mechanism.

Background

The case lid of case needs often to be opened and closed, and current case lid operating mechanism's structure is: the case lid rear end is articulated mutually with the outside wall of the uncovered rear end of box for can cover in the box is uncovered after the case lid overturns forward, otherwise, the manual drive case lid overturns backward and surpasss 90 degrees rear case lids and can continue to overturn downwards and hang in the box rear under the effect of gravity, thereby open the case lid, the case lid inboard back to the box this moment. The above-mentioned box cover opening and closing mechanism has the following disadvantages: (1) after the box cover is opened, the inner side of the box cover is easy to touch due to the fact that the inner side of the box cover faces away from the box body towards the outer side, and therefore the inner side of the box cover and a touch object are easy to pollute with each other, and in addition, when the box body stores frozen objects or high-temperature objects, cold or heat on the inner side of the box cover is easy to injure people; (2) when the box cover is heavy, manual opening of the box cover is laborious; (3) when the box cover is opened, turned downwards and hung behind the box body, the box cover easily collides with the box body due to inertia, so that the box cover and the box body are easily damaged, and the potential safety hazard that people are injured by clamping also exists.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the box cover opening and closing mechanism can realize automatic opening and closing of the box cover, can not collide with the box body when the box cover is opened, can suspend the box cover behind the box body after the box cover is opened, and enables the inner side of the box cover to face the box body.

In order to solve the problems, the technical scheme adopted by the invention is as follows: the utility model provides a case lid opening and closing mechanism which characterized in that: the left side and the right side of the opening of the box body are respectively provided with a long connecting rod and a short connecting rod positioned behind the long connecting rod, the inner ends of the long connecting rod and the short connecting rod on one side of the opening of the box body are respectively hinged with the inner side wall of the box body on the side where the long connecting rod and the short connecting rod are positioned, so that the long connecting rod and the short connecting rod on the side can swing back and forth, the inner ends of the long connecting rod on the side are hinged below the middle part of the corresponding side of the opening of the box body, and the inner ends of; the inner ends of the long connecting rod and the short connecting rod on the other side of the opening of the box body are respectively fixed with the inner ends of output shafts of two motors which are positioned on the same side and extend into the box body one by one, the two motors are fixed on the outer side wall of the box body, so that the long connecting rod and the short connecting rod on the side can swing back and forth under the drive of the motors, a sliding block is respectively arranged on the left side and the right side of the lower surface of the box cover, the two sliding blocks are respectively arranged on the lower surface of the box cover in a front-back sliding mode through a guide mechanism, the outer ends of the two long connecting rods are respectively hinged with the front parts of the corresponding sides of the lower surface of the box cover, the outer ends of the two short connecting rods are; when the cover is closed, the two motors rotate forward, the cover can be turned over on the opening of the box body forward under the driving of the long connecting rod and the short connecting rod which are turned over forward, after the cover is closed, the two long connecting rods and the two short connecting rods can be retracted in the box body, and the two sliding blocks can slide to the rear part of the cover; when uncapping, the equal antiport of two motors, the case lid can overturn backward under the drive of the long connecting rod and the short connecting rod of upset backward and leave the box uncovered, this moment because the case lid rear portion is lifted under the effect of short connecting rod and not leaned on with the uncovered back of box along the counterbalance, make the case lid can also slide towards box rear below under the support guide of two sliders at the in-process of upset backward, thereby make the case lid can overturn to erectting, and hang in the rear of box, the case lid inboard faces the box this moment, two sliders all can slide to the front portion of case lid.

Further, aforementioned box cover opening and closing mechanism, wherein: the short connecting rod is a U-shaped connecting rod, when the box cover is opened to be erected and hung at the rear of the box body, the U-shaped connecting rod can be overturned to be buckled on the opened rear edge of the box body, and therefore the opened rear edge of the box body can be avoided.

Further, aforementioned box cover opening and closing mechanism, wherein: the structure of the guide mechanism is as follows: the lower surface of the box cover is provided with a guide groove which moves forwards and backwards, a sliding rod which moves forwards and backwards is arranged in the guide groove, and the sliding block is provided with a guide hole through which the sliding rod can pass; the slider is blocked in the guide groove to the slide bar passes the slider, and the slider can receive the front and back direction of guide groove and slide bar, and the slide bar can prevent that the slider breaks away from the guide groove.

Further, aforementioned box cover opening and closing mechanism, wherein: the two motors are both motors with band-type brakes.

The invention has the advantages that: the box cover opening and closing mechanism can realize automatic opening and closing of the box cover, and the box cover can be turned over and can slide towards the rear lower part of the box body to be opened, so that the box cover cannot collide with the box body to be clamped, in addition, the inner side of the box cover faces the box body after the box cover is opened, and the inner side of the box cover is not easy to touch.

Drawings

Fig. 1 is a schematic view of a state of a cover opening and closing mechanism according to the present invention during a cover opening process.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic view of a cover opening and closing mechanism according to the present invention after the cover is completely opened.

Detailed Description

The present invention will be described in further detail below with reference to specific embodiments and the attached drawings.

As shown in fig. 1, 2 and 3, a lid opening and closing mechanism has the following structure: the left side and the right side of the box body opening 9 are respectively provided with a long connecting rod 3 and a short connecting rod 4 positioned behind the long connecting rod 3, the inner ends of the long connecting rod 3 and the short connecting rod 4 on one side of the box body opening 9 are respectively hinged with the inner side wall of the box body 1 on the side where the long connecting rod 3 and the short connecting rod 4 are positioned, so that the long connecting rod 3 and the short connecting rod 4 on the side can swing back and forth, the inner end of the long connecting rod 3 on the side is hinged below the middle part of the corresponding side of the box body opening 9, and the inner end of the short connecting rod 4 on the side is hinged; the inner ends of the long connecting rod 3 and the short connecting rod 4 on the other side of the box opening 9 are respectively fixed with the inner ends of the output shafts of the two motors 5 which are positioned on the same side and extend into the box 1 one by one, the two motors 5 are fixed on the outer side wall of the box 1, so that the long connecting rod 3 and the short connecting rod 4 on the side can swing back and forth under the driving of the respective motors 5, the left side and the right side of the lower surface of the box cover 2 are respectively provided with a sliding block 6, the two sliding blocks 6 are respectively arranged on the lower surface of the box cover 2 in a front-back sliding manner through a guide mechanism, the outer ends of the two long connecting rods 3 are respectively hinged with the front part of the corresponding side of the lower surface of the box cover 2, the outer ends of the two short connecting rods 4 are respectively hinged with the sliding; when the cover is closed, the two motors 5 rotate in the positive direction, the cover 2 can be turned over on the opening 9 of the box body forward under the driving of the long connecting rod 3 and the short connecting rod 4 which are turned over forward, after the cover is closed, the two long connecting rods 3 and the two short connecting rods 4 can be retracted in the box body 1, and the two sliding blocks 6 can slide to the rear part of the cover 2; when uncapping, the equal antiport of two motors 5, case lid 2 can leave the uncovered 9 of box backward in the drive of the long connecting rod 3 of backward upset and short connecting rod 4, this moment because 2 rear portions of case lid are lifted under the effect of short connecting rod 4 and do not lean on with the uncovered 9 back of box along the counterbalance, make case lid 2 can also slide towards 1 back below of box under the support guide of two sliders 6 at the in-process of backward upset, thereby make case lid 2 can overturn to erectting, and hang in the rear of box 1, 2 inboards of case lid are facing to box 1 this moment, two sliders 6 all can slide to the front portion of case lid 2.

In this embodiment, the short connecting rod 4 is a U-shaped connecting rod, and when the box cover 2 is opened to be erected and suspended behind the box body 1, the U-shaped connecting rod 4 is turned over to be buckled on the rear edge of the box body opening 9, so that the rear edge of the box body opening 9 can be avoided. The arrangement can prevent the U-shaped connecting rod 4 and the rear edge of the box body opening 9 from colliding with each other so as to prevent the U-shaped connecting rod and the box body opening 9 from being damaged by collision.

The structure of the guide mechanism is as follows: a guide groove 7 with a front-back trend is arranged on the lower surface of the box cover 2, a slide rod 8 with a front-back trend is arranged in the guide groove 7, and a guide hole through which the slide rod 8 can pass through the slide block 6 is arranged on the slide block 6; the slide block 6 is clamped into the guide groove 7, the slide rod 8 penetrates through the slide block, the slide block 6 can be guided forwards and backwards by the guide groove 7 and the slide rod 8, and the slide rod 8 can prevent the slide block 6 from being separated from the guide groove 7. This arrangement enables the slider 6 to slide in the cover 2, thereby making the structure more compact.

In the present embodiment, both motors 5 are stepping motors with band-type brakes. When the box cover 2 is opened to be vertical and hung at the rear of the box body 1, the two motors 5 are powered off, and at the moment, if the motors do not have a band-type brake mechanism, the two U-shaped connecting rods 4 continuously swing downwards and the rear edges of the box body opening 9 abut against each other, so that the two motors are easily damaged due to frequent collision.