A Rotary Pressure Relief Mechanism for Hydraulic Pumps with Limiting and Loose-proofing Functions

Abstract

The invention discloses a hydraulic pump rotary pressure relief mechanism with limiting and looseness prevention functions. The hydraulic pump rotary pressure relief mechanism comprises a mounting base and a rotary pressure relief handle, wherein one end of the rotary pressure relief handle is mounted on the mounting base; a handle head part is arranged at the other end of the rotary pressure relief handle; a rotating shaft is mounted on the side, at the handle head part, of the mounting base; a limiting rod is mounted on the rotating shaft; a limiting rod head boss which is in overlapping connection with the handle head part is arranged at the end, away from the rotating shaft, on the limiting rod; a mounting plate is arranged on the same side of the mounting base and the rotating shaft; a spring locating pin is mounted in the position, below the limiting rod head boss, on the mounting plate; and a return spring is arranged on the spring locating pin, and is connected with the lower part of the limiting rod head boss. According to the hydraulic pump rotary pressure relief mechanism, the return spring is arranged, so that the problem that the looseness prevention function of a conventional pressure relief handle fails due to permanent deformation of an elastic piece is solved, and the safe reliability of rotary pressure relief of a hydraulic pump is further improved.

Description

technical field [0001] The invention belongs to the field of medical device parts, in particular to a rotary pressure relief mechanism of a hydraulic pump with a position limiting and anti-loosening function. Background technique [0002] At present, hydraulic pumps have been widely used in the field of medical equipment, but most of the existing rotary pressure relief handles of hydraulic pumps do not have anti-loosening structure design. cause some damage. [0003] In order to improve the safety of the rotary pressure relief handle of the hydraulic pump during use and ensure the safety of the patient, a Chinese patent with the publication number CN104929926A discloses a rotary pressure relief device for the hydraulic pump with an anti-loosening function, including a mounting seat and a mounting seat. The rotary pressure relief handle on the seat, the mounting seat is composed of a bottom plate and a transition plate integrated with the bottom plate, the head of the transi...

AI Technical Summary

Problems solved by technology

Although the pressure relief device improves the safety of the rotating pressure relief handle of the hydraulic pump during use and ensures the safety of the patient to a certain extent, because the transition plate is pressed down when the handle is rotated, the anti-loosening function is realized through the head and the stopper. However, because there is no reset device, the transition plate is likely to cause permanent deformation during the multiple pressing down process and lose the anti-loosening function, which reduces the reliability of loosening and has certain potential safety hazards. Therefore, the existing hydraulic pump rotary discharge The structure of the pressure handle is not ideal enough and needs to be further improved

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