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Pure mechanical type coded lock valve device with self-closing mechanism

A technology of valve device and combination lock, which is applied in the direction of valve device, device for preventing accidental or unauthorized action, mechanical equipment, etc. It can solve problems such as lowering reliability requirements, and achieve improved anti-interference, precise rotation, and production low cost effect

Pending Publication Date: 2018-11-06
李剑威
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the new national gas valve standard requires that for the safety of users, the new gas valve design must have a self-closing mechanism, and the "illegal filling prevention mechanism" and self-closing mechanism are set in such a small space valve, giving The design and development of gas valves has brought huge challenges. Many manufacturers are often unable to take into account the simultaneous requirements of the two. They can only choose to reduce the reliability requirements of the "prevention of illegal filling" mechanism to make room to meet the requirements of the national standard as much as possible. autistic agency

Method used

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  • Pure mechanical type coded lock valve device with self-closing mechanism
  • Pure mechanical type coded lock valve device with self-closing mechanism
  • Pure mechanical type coded lock valve device with self-closing mechanism

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Embodiment Construction

[0040] The present invention will be further described below according to the accompanying drawings and specific embodiments, but the embodiments of the present invention are not limited thereto.

[0041] Such as Figure 1 to Figure 17 As shown, a purely mechanical combination lock valve device with a self-closing mechanism includes a valve body 10, and one side of the valve body 10 is provided with a transverse passage 109 communicating with the lower casing 108 of the valve body 10, and the transverse passage 109 is There is a mechanical combination lock 20 and a self-closing mechanism 22 that can realize the open state when the mechanical combination lock 20 is pushed by an external unlocking tool; the self-closing mechanism 22 forms an automatic closing state under the action of the gas cylinder air pressure.

[0042] Preferably, the self-closing mechanism 22 includes a second return spring 221, a self-closing slider 222, a self-closing flexible sealing body 223, a self-cl...

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Abstract

The invention discloses a pure mechanical type coded lock valve device with a self-closing mechanism. The coded lock valve device comprises the self-closing mechanism, a mechanical type coded lock anda pressure reducing valve connector assembly. The self-closing mechanism the coded lock can move backwards under pushing of an external unlocking mechanism, thus the self-closing mechanism is opened,the coded lock can rotate in the axial direction, the unlocking mechanism is utilized for directly driving the coded lock to rotate in the axial direction, and thus after the coded lock rotates overangle codes set in advance, control over on-off of an inflation channel can be achieved. By means of ingenious design layout of the self-closing mechanism and the mechanical type coded lock, the self-closing mechanism and the mechanical type coded lock can be arranged in a limited transverse space at the same time, the requirement of the national standard for the safety is met, and the reliabilityand the safety usability of preventing illegal filling are improved.

Description

technical field [0001] The invention relates to auxiliary gas charging equipment, in particular to a purely mechanical combination lock valve device with a self-closing mechanism. Background technique [0002] The gases that are often used in people's daily life and production include liquefied petroleum gas, hydrogen, oxygen, carbon dioxide, etc. Some of these gases are inherently flammable and explosive, and the gas also has high pressure during storage and filling. All of the above-mentioned characteristics make the relevant properties of the gas show great danger. Among them, liquefied petroleum gas is the most frequently involved gas in residents' lives. Due to its characteristics of frequent filling, in order to ensure safety, the state has formulated a set of very strict filling operation guidance procedures. However, due to the drive of economic interests, there are still some criminals who carry out illegal activities involving liquefied gas filling, such as cross-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K35/08F16K1/02
CPCF16K1/02F16K35/08
Inventor 李剑威
Owner 李剑威
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