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Valve element component of safety valve

A valve core assembly and safety valve technology, which is applied in mining equipment, earth-moving mining, mine roof support, etc., can solve the problems of small discharge flow, large flow loss, and poor unloading capacity of safety valve, so as to improve the discharge of liquid. The effect of large flow and liquid flow

Inactive Publication Date: 2017-12-22
HONGDA INTELLIGENT MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The overflow channel of the existing safety valve adopts the liquid passage hole arranged around the side wall of the valve core. The diameter of the liquid passage hole is small, resulting in a small discharge flow of the safety valve, a large flow loss, and poor unloading capacity.

Method used

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  • Valve element component of safety valve
  • Valve element component of safety valve
  • Valve element component of safety valve

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Embodiment Construction

[0036] The specific embodiment of the present invention will be described in further detail by describing the embodiments below with reference to the accompanying drawings, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present invention, and contribute to its implementation.

[0037] Such as Figure 1 to Figure 7 As shown, it is a safety valve, which includes a valve casing 2, a spring seat 3 and a return spring 4 arranged inside the valve casing 2, and a valve core assembly of the present invention. The valve core assembly of the present invention includes a valve body 8, which can be The movable valve core, the valve sleeve 7 sleeved on the valve core and located inside the valve body 8, and the compression screw 5 disposed inside the valve body 8 and used to limit the valve core and the valve sleeve 7, The valve core includes a liquid inlet section 601 and a guide s...

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Abstract

The invention discloses a valve element component of a safety valve. The valve element component comprises a valve body, a valve element in movable arrangement, a valve sleeve sleeving the valve element and positioned inside the valve body and a compression screw positioned inside the valve body and used for limiting the valve element and the valve sleeve, the valve element comprises a liquid incoming section and a guide section which are axially arranged sequentially, outer diameter of the liquid incoming section is greater than that of the guide section, the valve sleeve sleeves the liquid incoming section, the compression screw sleeves the guide section, and a first liquid passing hole, a second liquid passing hole, a third liquid passing hole and a fourth liquid passing hole which are axially arranged sequentially are formed in the liquid incoming section. The valve element is axially limited through the compression screw, and a limiting structure on the valve element is positioned inside the compression screw and matched with the same, so that requirements on wall thickness of the liquid incoming section of the valve element are lowered; an inner cavity of the liquid incoming section of the valve element can be arranged to be large to enable liquid passing flow of the valve element component to be large, so that increasing of liquid discharging flow of the safety valve is facilitated.

Description

technical field [0001] The invention belongs to coal mine fully mechanized mining hydraulic support, in particular, the invention relates to a valve core assembly of a safety valve. Background technique [0002] With the large-scale implementation and development of coal mine fully mechanized mining hydraulic supports, fully mechanized mining work has more and more stringent requirements for hydraulic supports, so there are further requirements for the safety valve of the hydraulic cylinder of the protection support, especially for the safety valve There are further requirements for the service life and reliability of the hydraulic support. When the pressure from the top of the hydraulic support causes passive force, whether the safety valve can unload in a short time, fully and stably under the condition of high pressure directly affects the service life of the support. and support security. It will not only damage seals, pipes and hydraulic components, but also cause vibr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D23/16
CPCE21D23/16
Inventor 李子昂李福洪朱述群谢瑞
Owner HONGDA INTELLIGENT MACHINERY CO LTD
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