Non-refillable valve for steel welded cylinder

A non-repetitive, valve technology, applied in the direction of lift valve, valve device, engine components, etc., can solve the problems of destroying the valve structure, difficult to ensure that the factory valve does not leak, etc., to achieve the effect of ensuring no leakage and preventing leakage

Inactive Publication Date: 2007-02-14
郑卸果
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of valve utilizes the structure change of the spool and the pressure difference to achieve the purpose of eliminating repeated filling, but there is a problem with this kind of valve before use: how to check whether the valve leaks after it is closed? Because it is a non-refillable valve, the valve stem can only be used for one-time control of the valve core. Therefore, it is impossible to inspect the valves one by one (otherwise, the valve structure will be damaged). The prior art uses a destructive sampling inspection method. Therefore, it is difficult to ensure that the factory valve is 100% leak-free

Method used

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  • Non-refillable valve for steel welded cylinder
  • Non-refillable valve for steel welded cylinder
  • Non-refillable valve for steel welded cylinder

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Embodiment Construction

[0016] Below in conjunction with accompanying drawing, the present invention is described in further detail by embodiment, Figure 1-8 The serial numbers in represent respectively: valve body 11, necking wall 111, valve inner wall 112, valve body cavity 113, sealing hole 114, valve body partition 115, connecting step 116, valve nozzle 117, air inlet 118; valve stem assembly 10. Valve handle 101, valve stem 102, threaded connector 103, upper valve core 104; lower valve core 20, positioning ring 201, lower valve core rod 202, sealing head 203, flow channel 204; supporting sleeve 30, cylinder cavity A through hole 301 on the partition, a through hole 302 under the partition of the cylinder cavity, a support sleeve cavity 303 ; a sealing ring 40 .

[0017] See attached figure 1 . The structure of the non-refillable valve for steel cylinders in this embodiment includes a valve body 11, a valve mouth 117 and components inside the valve. The valve body 11 and the valve mouth 117 a...

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Abstract

A nonrepeated charging valve of steel cylinder consists of valve body, valve mouth, valve internal components including valve stem component, bottom spool and support sleeve for supporting bottom spool. It is featured as setting bottom of bottom spool to be sealed head, setting media flowing channel on rod body and forming two stages of sealing surfaces by top spool and bottom spool in valve stem component.

Description

technical field [0001] The invention belongs to a valve, in particular to a non-refilling valve capable of ensuring the one-time use of steel cylinders. Background technique [0002] Some steel cylinder countries strictly stipulate that its service life can only be used as a one-time use, and it is not allowed to be refilled and then sold on the market to avoid potential safety hazards. For this reason, non-refillable valves with multiple structures have appeared in the prior art. Used on steel cylinders to eliminate refilling. Chinese Patent No. 00241308.6 discloses an "industrial non-refillable bottle valve". Its structure includes: an integral valve body, a valve nozzle, and its internal components. The valve stem, the valve core, and the valve stem are screwed on the inner ring wall of the upper part of the valve body cavity; the shape of the lower end of the valve core matches the sealing hole, and the two form a sealing surface. This kind of valve utilizes the struct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K99/00
CPCF16K1/302F16K1/307
Inventor 郑卸果
Owner 郑卸果
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