A link type hydraulic claw device

Abstract

The invention discloses a connecting rod type hydraulic clamping device in the technical field of mechanical locking devices. The connecting rod type hydraulic clamping device comprises a telescopic cylinder, a fixed mounting seat, a transmission chain and a movable lock plate. When the connecting rod type hydraulic clamping device is in the locking state, a sliding block pulls the movable lock plate so as to enable a second guiding surface to abut against the periphery of a second guiding column, and the movable lock plate rotates under the action of an abutting force of the second guiding column, so that a hook and a target are locked and abutted; and when the connecting rod type hydraulic clamping device is in the unlocking state, the sliding block drives the movable lock plate so as to enable a first guiding surface to abut against the periphery of a first guiding column, and the movable lock plate rotates under the action of an abutting force of the first guiding column, so that the hook is separated from the target. The sliding block in the transmission chain drives the movable lock plate to move, a guiding mechanism formed by the first guiding column and the second guiding column is used for guiding the movement locus of the movable lock plate through abutting, so that the locking and unlocking process of the movable lock plate can be well controlled.

Description

technical field [0001] The invention relates to the technical field of mechanical locking devices, in particular to a hydraulic locking device with a connecting rod type transmission chain. Background technique [0002] Where locking is required, especially when heavy objects (such as dustbins) need to be locked, a hydraulic locking device is required to complete the locking operation. In the past, the hydraulic locking device was set up as follows: it includes an oil cylinder and a lever installed on the piston rod of the oil cylinder. One end of the lever is hinged to the piston rod of the oil cylinder, and the other end of the lever is the locking end. body, the middle part of the lever is inserted with a rotating shaft. During use, the piston rod of the oil cylinder expands and contracts, and the lever is driven to rotate based on its rotating shaft, so that the clip joint at the other end of the lever hooks the target body to complete the locking. [0003] Although th...

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Problems solved by technology

[0003] Although the setting is relatively simple, there are many problems in actual use. In general, it is as follows: After using it for many times, the gap between the lever and the shaft will become loose, so that the deviation generated when the lever is used becomes larger and larger. The effect will be greatly reduced

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