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Fusing mechanism and fire-proof check valve

A check valve and fusing technology, applied in the direction of control valve, safety valve, balance valve, etc., can solve the problems of failure and separation of the fusing mechanism, and achieve the effect of simplifying the structure, reducing the manufacturing cost and simplifying the installation steps.

Pending Publication Date: 2020-02-25
HANGZHOU XIAOMI ENVIRONMENTAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The torsional force acting on the fusible solder for a long time will cause the first metal plate (or the second metal plate) to separate from the fusible solder, which means that under normal temperature, the fuse mechanism of the fire check valve will be damaged after being used for a period of time. Automatically lapse

Method used

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  • Fusing mechanism and fire-proof check valve
  • Fusing mechanism and fire-proof check valve
  • Fusing mechanism and fire-proof check valve

Examples

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Embodiment Construction

[0035] The technical solutions of the embodiments of the present invention will be explained and described below in conjunction with the accompanying drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all of them. Based on the examples in the implementation manners, other examples obtained by those skilled in the art without making creative efforts all belong to the protection scope of the present invention.

[0036] see Figure 6 and Figure 7 , the fuse mechanism includes at least one fuse unit for preventing the locking rod 4 from moving axially relative to the valve body 1 , and each fuse unit is provided with a mounting hole 511 matching the lock rod 4 .

[0037] In this embodiment, each fusing unit includes a solder ring 51 with a mounting hole 511; or, each fusing unit includes a section of arc-shaped solder section, the arc-shaped solder section is provided with a mounting ho...

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Abstract

The invention relates to a fusing mechanism and a fire-proof check valve. A problem of short service life of the fusing mechanism is solved, the fusing mechanism includes one or more fusing units usedfor preventing axial movement of locking rods relative to a valve body, and each fusing unit is provided with a mounting hole matching the locking rod.

Description

technical field [0001] The invention relates to a fusing mechanism and a fireproof check valve. Background technique [0002] The existing fire check valve (for the specific structure, please refer to the invention patent with application number 201610651149.5) includes a valve seat, a lever, a fusing mechanism and a torsion spring. The fusing mechanism includes a first metal plate, a second metal plate and a The fusible solder of the first metal plate and the second metal plate, the driving rod and the second metal plate are rotatably connected with the valve seat, one torsion arm of the torsion spring is connected with the valve seat, the other torsion arm of the torsion spring is connected with the driving rod and Drive the lever against the first metal plate, and there is a limiter on the valve seat. When the other torsion arm of the torsion spring is connected to the lever and drives the lever against the first metal plate, and the first metal plate and the second metal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/38F16K17/40F16K15/14
CPCF16K17/383F16K17/40F16K15/144
Inventor 王启定曹正祥
Owner HANGZHOU XIAOMI ENVIRONMENTAL SCI & TECH