Pilot type active belt position monitoring safety valve

An active and pilot-operated technology, applied in safety valves, fluid pressure actuators, balance valves, etc., can solve problems such as poor safety valve action stability, complex system loop requirements, safety production accidents, etc., to ensure stability, The effect of stable and reliable switching action and good temperature compensation performance

Active Publication Date: 2014-03-19
TAIZHONG GRP YUCI HYDRAULIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] On the injection molding machine, the existing safety valve has poor operation stability, complex system circuit requirements, and easy to cause safety production accidents. Therefore, it is necessary to develop a new type of safety valve

Method used

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  • Pilot type active belt position monitoring safety valve
  • Pilot type active belt position monitoring safety valve
  • Pilot type active belt position monitoring safety valve

Examples

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Embodiment Construction

[0033] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0034] A pilot-operated active safety valve with position monitoring, including an electromagnetic reversing valve 21, a main valve 20 and a check valve, such as figure 2 , 3 shown.

[0035] The main valve 20 includes a valve sleeve 2 with a stepped hollow inside. The outlet on the right end of the valve sleeve 2 is port A, and the circumference of the right end of the valve sleeve 2 is provided with a port B communicating with the oil inlet.

[0036] A collar 4 is installed in the left end of the valve sleeve 2 .

[0037] The valve sleeve 2 is installed with a spool 3 with a boss in the middle, and the outer cone surface of the right end of the valve core 3 forms a line seal with the inner taper hole of the right end of the valve sleeve 2, and the A port and the B port on the valve sleeve 2 are sealed. The left end of the spool 3 is seale...

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PUM

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Abstract

The invention relates to a valve, and in particular relates to a pilot type active belt position monitoring safety valve. The pilot type active belt position monitoring safety valve comprises an electromagnetic directional valve (21), a main valve (20) and a check valve, wherein the main valve (20) comprises a valve sleeve (2) with a stepped hollow inner part, an outlet A is formed in the right end of the valve sleeve (2), a port B communicated with an oil inlet is formed in the circumference of the right end of the valve sleeve (2), and a lantern ring (4) is installed in the left end of the valve sleeve (2); a valve core (3) with a boss in the middle is installed in the valve sleeve (2), linear sealing is formed between the outer conical surface of the right end of the valve core (3) and an inner conical hole in the right end of the valve sleeve (2) to separate a port A from the port B, the right end of the valve core (3) extends into the lantern ring (4) in a matching way, the boss in the middle of the valve core (3) is matched with the inner wall of a large hole in the left end of the valve sleeve (2), and the cylindrical surface on the right side of the boss of the valve core (3) is matched with the inner hole in the middle of the valve sleeve (2) is a sealing way. The pilot type active belt position monitoring safety valve is reasonable to design and simple in structure.

Description

technical field [0001] The invention relates to a valve, in particular to a pilot active safety valve with position monitoring. Background technique [0002] On the injection molding machine, the existing safety valve has poor operation stability and complex system circuit requirements, which easily lead to safety production accidents. Therefore, it is necessary to develop a new type of safety valve. Contents of the invention [0003] The purpose of the present invention is to provide a novel pilot-operated active safety valve with position monitoring. [0004] The present invention is realized by adopting the following technical solutions: [0005] A pilot-operated active safety valve with position monitoring, including an electromagnetic reversing valve, a main valve and a check valve. [0006] The main valve includes a step-shaped hollow valve sleeve inside, the outlet on the right end of the valve sleeve is port A, and the circumference of the right end of the valve ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/00
CPCB29C45/84F15B13/02F16K37/0041
Inventor 郭励敏张凯
Owner TAIZHONG GRP YUCI HYDRAULIC IND
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