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Safety valve

一种安全阀、阀芯的技术，应用在安全阀、控制阀、平衡阀等方向，能够解决多空间、占据、压力回路结构复杂等问题，达到紧凑结构、实现手动操作的效果

Active Publication Date: 2018-12-21
ACTIVE TOOLS INTERNATIONAL (HK) LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the need to set two valves, the structure of the pressure circuit is more complicated
Also, in some applications, where space is an important consideration, having two valves also takes up more space, which is not desirable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Some embodiments of the present application will be described below with reference to the accompanying drawings. These specific examples should not be regarded as limiting the present invention, but are intended to explain the concept of the present invention.

[0034] figure 1 An embodiment of the application is shown, wherein the arrangement of the channels in the valve body and the valve core are shown in perspective. The safety valve 10 has a valve body 1 and a valve core. The valve body may have a cross shape. However, those skilled in the art can understand that the valve body can also have other shapes and suitable structures. The valve body is provided with a horizontal channel and a vertical channel, and the horizontal channel is used to connect the inlet and the outlet. A spool is provided in the vertical channel. The spool can move along a vertical path to switch between closed and open positions.

[0035] Attached below figure 2 The specific structur...

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PUM

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Abstract

A safety valve comprises: a valve body (1) having an inlet (13), an outlet (14) and a releasing port; and a valve core (22) being movable within the valve body (1) between a close position in which the inlet communicates with the outlet and an open position in which the inlet communicates with the releasing port, the valve core comprising a resilient member (3, 20, 41) which biases the valve coreto the close position; wherein the position of the valve core can be manually or automatically controlled such that the valve core is able to switch between the close position and the open position, and fluid flows from the inlet to the outlet in the close position and flows from the inlet to the releasing port in the open position. Manual pressure releasing and automatic pressure releasing are achieved by adjusting the same valve core, thus a more compact structure is achieved.

Description

technical field [0001] The invention relates to a safety valve, more specifically, a safety valve capable of releasing through manual operation and automatic operation. Background technique [0002] In the prior art pneumatic and hydraulic devices, a safety valve generally needs to be provided in the pressure circuit to ensure that the pressure can be released when the pressure exceeds a predetermined level, or the pressure can be released as required. Safety valves can be divided into automatic safety valves and manual safety valves according to their different triggering methods. The automatic safety valve can automatically open when the pressure exceeds the pressure threshold for pressure relief without human intervention. The manual safety valve releases pressure through human operation or external force input. In order to avoid the failure of the automatic safety valve, it is preferable to provide a manual safety valve at the same time, so as to perform manual pressur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/04F16K17/164F16K17/18
CPCF16K17/044F16K17/0486F16K17/06F16K17/164F17C2205/0332F16K15/18F16K17/168G05D16/10Y10T137/2605Y10T137/7876
Inventor Y.C.D.洪
Owner ACTIVE TOOLS INTERNATIONAL (HK) LIMITED
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