Ratchet wrench for steam valve

By designing a ratchet wrench for steam valves, the one-way fit and elastic positioning structure of the pawl and ratchet are used to solve the problem of inconvenient operation of the steam valve, and efficient and safe opening and closing operations are achieved, avoiding the risk of direct contact with the high-temperature handwheel. .

CN222244566UActive Publication Date: 2024-12-27CHINA TOBACCO ANHUI IND CO LTD
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Patent Information

Application Number
CN202420946845.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-30
Publication Date
2024-12-27
Estimated Expiration
2034-04-30

AI Technical Summary

Technical Problem

Due to the high temperature of the steam valve, the operator needs to wear anti-scalding gloves, which is inconvenient and time-consuming, and it is often difficult to effectively tighten or unscrew.

Method used

A ratchet wrench for steam valve is designed. Through the one-way cooperation between the pawl and the ratchet, the elastic positioning structure and spline wheel are used to achieve convenient and labor-saving opening and closing operations of the steam valve handwheel, avoiding direct contact with high temperatures.

Benefits of technology

It realizes the convenience and safety of operation, improves work efficiency, ensures that the operator does not need to directly contact the high-temperature valve handwheel, and realizes the flexibility of opening and closing operations through one-way rotation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The ratchet wrench for the steam valve comprises a handle, a ratchet wheel is fixedly installed at the top end of the handle, a flange plate is coaxially and fixedly installed at one end of the ratchet wheel, three clamping rods are evenly distributed on the flange plate in the circumferential direction, the clamping rods protrude outwards in the axial direction of the flange plate, and a pawl is rotationally installed at the position, below the ratchet wheel, of the top of the handle. A positioning structure is arranged below the pawl and comprises a positioning pin elastically supported on the handle, the middle of the pawl is rotationally installed on the handle, protruding claws are arranged on the two sides of the top of the pawl respectively, inclined faces with the bottom ends contracting inwards are arranged on the two sides of the bottom of the pawl respectively, and the top end of the positioning pin elastically abuts against the inclined face on one side of the bottom of the pawl. The convex claw on the opposite side of the top of the pawl is matched with the ratchet wheel, so that the ratchet wheel can only rotate unidirectionally. Compared with the prior art, the steam valve has the advantages that the steam valve can be opened and closed conveniently in a labor-saving mode.
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Citation Information

Cited By

  • Hand tool

    WO2025238276A1