A cold storage door closer

Abstract

The invention relates to a door closer for a cold storage door. The door closer comprises a door closer guide rail arranged at the bottom of the cold storage door and a roller group matched with the door closer guide rail, wherein the roller group comprises more than two first rollers arranged on the inner side and more than two second rollers arranged on the outer side, the first rollers are in converted frustum shapes, and the second rollers are in frustum types; the door closer guide rail is formed by connecting a mounting plate and a sliding plate, and an included angle between the mounting plate and the sliding plate is an acute angle; the sliding plate is arranged between the first rollers and the second rollers, and the outer side face of the sliding plate and the surfaces of the second rollers form linear contact, the inner side face of the sliding plate and the surface of the first rollers form linear contact, and the slopes of the surfaces of the first rollers, the slopes of the surfaces of the second rollers and the slope of the sliding plate are the same. When the cold storage door is disassembled in cold storage or collides with other equipment, the cold storage door can slide out from one side of the door closer, the impact force is reduced, destructive damage to the cold storage door cannot be caused, and a certain protective effect is achieved.

Description

technical field [0001] The invention relates to a cold storage door, in particular to a door closer for a translational cold storage door. Background technique [0002] The reasonable design of the cold storage door structure is an important link to ensure the normal use of the cold storage. Avoiding structural design problems of the cold storage door, resulting in loss of cooling capacity, plays a vital role in prolonging the service life of the cold storage door. In the process of opening / closing the cold storage door in the prior art, one way is to rely on the simple wheel installed at the bottom of the cold storage door to roll. The door leaves will inevitably vibrate slightly, so that there will be a deviation in the direction of the cold storage door leaf when it moves, and it will not move in a straight line parallel to the door frame, resulting in poor sealing when the warehouse door is closed, and the phenomenon of running cold will occur. There may be damage to th...

AI Technical Summary

Problems solved by technology

In the process of opening / closing the cold storage door in the prior art, one way is to rely on the simple wheel installed at the bottom of the cold storage door to roll. The door leaves will inevitably vibrate slightly, so that there will be a deviation in the direction of the cold storage door leaf when it moves, and it will not move in a straight line parallel to the door frame, resulting in poor sealing when the warehouse door is closed, and the phenomenon of running cold will occur. There may be damage to the cold storage door, which will affect the normal use of the cold storage door

Another way is to install a straight guide rail at the lower end of the door leaf. This kind of straight guide rail has a large gap and friction force and is not stable enough. The guide rail moves along the guide grooves made of plastic materials installed at both ends of the door frame. Friction is generated during the movement process, which increases the resistance of the sliding door during operation. The resistance is too large to escape from the shackles of the guide rails, which may cause the cold storage door to be crashed

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