A push-type lid switch locking device

Abstract

The invention discloses a push type cover switch locking device and belongs to the field of lock devices. The push type cover switch locking device comprises a locking device and a thrust contact, wherein the locking device is arranged between opening and closing joint surfaces of two observation plate assemblies; the thrust contact is arranged between the opening and closing joint surfaces of the two observation plate assemblies and always supplies thrust force enabling the two observation plate assemblies to tend to be opened during closing of the two observation plate assemblies; the locking device comprises a movable cover switch assembly, a stationary limiting guide block and a micro-switch; the limiting guide block is matched with the cover switch assembly; the cover switch assembly comprises a cover switch, an elastic piece, a locking contact assembly and an adjusting screw contact assembly; the cover switch is capable of ascending and descending and rotating around the self axis; the elastic piece continuously applies lift force, which enables the cover switch to be in an initial state, to the cover switch; the locking contact assembly is connected with the cover switch and is driven by the cover switch to ascend and descend; the adjusting screw contact assembly is connected with the cover switch and is driven by the cover switch to synchronously ascend and descend and rotate around the self axis. According to the push type cover switch locking device, the usability and the safety are improved, and the labor intensity of an operator is reduced.

Description

technical field [0001] The invention belongs to the field of locking devices, in particular to a locking device used on a cover plate of a centrifuge. Background technique [0002] There is a centrifuge, a key component in the blood collection equipment. The centrifuge is used in conjunction with disposable consumables. The consumables must be replaced every time the blood collection is collected. After the consumables are installed, the centrifuge is locked to start collection. [0003] Existing centrifuge lid switch locking device is the screw type lid switch that uses, as figure 1 , The lock nut has an internal thread and can be rotated left and right. Rotate down to compress the viewing board assembly, and rotate up to loosen the viewing board assembly. The left and right halves of the observation plate assembly can rotate around the pin shaft, figure 2 It is a schematic diagram of the separation of two observation plates. When the consumables are installed, close t...

AI Technical Summary

Problems solved by technology

Therefore, the cover switch locking device of the existing centrifuge is inefficient and cumbersome to operate

[0004] In addition, the centrifuge is a high-speed rotating device. In the prior art, the observation plate assembly is locked by manually tightening the cover switch. It is also manually judged whether the cover switch is locked and the degree of locking. If the centrifuge is not locked, it will start. When the centrifuge is working or the centrifuge is rotating at a high speed, the observation plate assembly is opened because it is not locked or gradually loosened due to vibration, so there is a great safety risk

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