One-way valve with built-in decompression function

A one-way valve and function technology, which is applied in the types of functional valves, control valves, safety valves, etc., can solve the problems of inapplicable two-way pressure bearing, limited application scope, etc., and achieves a simplified and reasonable structure, good practicability, and prevention of backflow. Effect

Pending Publication Date: 2018-06-08
ZHEJIANG SHENTAI SOLAR ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cut-off valve disclosed in this patent document has the function of overflow and pressure relief, that is, when the system pressure is too high, the excess pressure can be released through the pressure overflow device, so as to avoid local bursting of the system and i

Method used

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  • One-way valve with built-in decompression function
  • One-way valve with built-in decompression function
  • One-way valve with built-in decompression function

Examples

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Embodiment Construction

[0018] The specific structure of the check valve in the present invention is described below in conjunction with the accompanying drawings:

[0019] A check valve with built-in pressure relief, such as figure 1 As shown, it includes a valve body 1, the valve body 1 is provided with a fluid passage 2 along the axial direction for fluid to pass through, and an annular sealing surface 3 and a spring seat 4 are fixed at intervals in the fluid passage 2, and the fluid passage 2 2, between the annular sealing surface 3 and the spring seat 4, a first valve core assembly is arranged, and the first valve core assembly includes a first valve core 5 and a first spring 6, and the two ends of the first spring 6 Respectively against the first valve core 5 and the spring seat 4, the first valve core 5 is in sealing contact with the annular sealing surface 3 under the action of the first spring 6, and the first valve core 5 is axially penetrated with a A pressure relief hole 51, the valve b...

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PUM

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Abstract

The invention discloses a one-way valve with a built-in decompression function. The one-way valve comprises a valve body; the valve body is internally provided with a fluid channel in the axial direction; annular sealing faces and spring seats are fixed in the fluid channel at intervals; a first valve element assembly is arranged between the annular sealing faces and the spring seats in the fluidchannel; the first valve element assembly comprises first valve elements and first springs; the first valve elements contact with the annular sealing faces under the action of the first springs in a sealing mode; decompression holes are formed on the first valve elements in the axial direction in a penetrating mode; the valve body is also internally provided with a second valve element assembliesused for plugging the decompression holes; the second valve element assembly comprises a second valve element and second springs; the second valve element seals the decompression holes under the action of the second springs; and the opening direction of the second valve element is opposite to that of the first valve elements. The one-way valve with the built-in decompression function is suitable to be installed at a water inlet of a water heater tank; when the water heater water tank supplies water normally, the one-way valve can guide a pipeline; and when the pressure of the water heater tankis too high, and the one-way valve can reflow pressure.

Description

technical field [0001] The invention relates to a one-way valve with a built-in pressure relief function, belonging to the field of one-way valve structure design. Background technique [0002] Patent document CN101956846B discloses a shut-off valve, including: valve body, retainer, valve core, spring, spring seat and locking plate, the valve body is a hollow cylinder, both ends of the valve body are processed with internal threads, and the retainer It is a bowl-shaped ring, the baffle is connected to the left end of the valve body through threads, the valve core is pressed against the hole of the baffle by a spring, one end of the spring is on the spool, and the other end of the spring is on the spring seat. The spring seat is a disc with external thread, and there are holes evenly distributed on the disc. The spring seat is connected to the right end inside the valve body through threads, and the locking plate is a ring with external threads. On the other side, the positi...

Claims

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Application Information

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IPC IPC(8): F16K15/10F16K17/04
CPCF16K15/10F16K17/0413
Inventor 俞海强徐超王清王成林张克勤马飞李欢金风平
Owner ZHEJIANG SHENTAI SOLAR ENERGY
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