Valve core for mass-flow safety valve
A high-flow safety valve and valve core technology, used in safety valves, control valves, balance valves, etc., can solve the problems of difficult maintenance, low service life and adaptability, and achieve long service life, easy installation and maintenance, and reliability. strong effect
Inactive Publication Date: 2013-10-16
HEFEI CHUANYUAN HYDRAULIC EQUIP
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Problems solved by technology
[0003] The purpose of the present invention is to provide a valve core for a large flow safety valve, so as to solve the problems of space occupation, low service life, low adaptability and difficult maintenance of the column hydraulic control check valve in the prior art
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[0008] like figure 1 shown. A valve core for a large flow safety valve, comprising a trapezoidal core body 3, the left end of the core body 3 is provided with a boss 2, the left end of the boss 2 is provided with a spring column 1, and the inner core of the spring column 1 is A blind hole 6 is opened; a stem 4 is provided at the right end of the core body 3 , and a groove 5 is opened on the stem 4 .
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The invention discloses a valve core for a mass-flow safety valve. The valve core comprises a trapezoidal core body, wherein a boss is arranged at the left end of the core body, a spring column is arranged at the left end of the boss, and a blind hole is formed in an inner core of the spring column; and a core column is arranged at the right end of the core body. The valve core is simple in structure, high in system integration degree and reliability, long in service life, little in noise, easy to mount and maintain, simple, convenient and reliable.
Description
technical field [0001] The invention relates to the field of one-way valves, in particular to a valve core for a large-flow safety valve. Background technique [0002] The spool is a valve part that uses its movement to realize the basic functions of direction control, pressure control or flow control. At present, there are mainly three kinds of common spools: ceramic spools, steel ball spools and shaft-rolling spools. These three spools are characterized by integrity, the entire valve shaft is integrated, easy to install, maintain and replace. The types of spools include double-head three-position, double-head two-position mechanical positioning, and single-head two-position. When the valve is opened and closed, there will be impurities squeezed on the soft seal, causing leakage and stringing, and the adaptability and service life are not ideal. In addition, the traditional valve group is composed of many structural parts. Replace the seal It is extremely inconvenient do...
Claims
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Inventor 王磊李慧娟
Owner HEFEI CHUANYUAN HYDRAULIC EQUIP
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