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Three-way valve

A three-way valve and valve body technology, applied in multi-way valves, valve devices, engine components, etc., can solve the problem of high price and achieve the effects of large bearing capacity, cost reduction and compact structure

Inactive Publication Date: 2016-07-13
NANJING HUYOU METALLURGY MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Quick connectors belong to the existing technology, but the price is higher

Method used

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Examples

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Embodiment Construction

[0024] The present technology will be further described below in combination with the drawings and specific embodiments.

[0025] see image 3 , 4 The three-way valve shown has a valve body 1, and the valve body has three communicating ports, one of which is the cap port 11 connected to the movable nut 2, one port is the valve port 12 for installing the ball valve 5, and one port is the outer peripheral port. An externally threaded port 13 with an external thread.

[0026] The movable nut includes an inner hole 21 at the front and a necking 22 at the rear, the diameter of the inner hole is c, and the diameter of the necking is e; a step surface 23 is formed between the necking and the inner hole; between the step surface and the wall of the inner hole Transition with rounded corners.

[0027]The cross section of the circlip 4 is a circle with a diameter R, obviously, the width of the circlip 4 in the radial direction is f=the thickness in the axial direction is x=diameter R...

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PUM

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Abstract

The invention provides a three-way valve which is simple in structure, easy and convenient to install, low in cost and reliable in sealing.The three-way valve is provided with a valve body, the periphery of a nut port with the diameter of a is provided with a clamp groove with the width of s, and a clamp spring is embedded into the clamp groove; the distance between the end face of the front portion of the nut port and the clamp groove is t; the width of the clamp spring is f, and the thickness of the clamp spring is x; the outer diameter of the clamp spring after being embedded into the clamp groove is b; a movable nut comprises a front inner hole and a back necking hole, the diameter of the inner hole is c, and the diameter of the necking hole is e; a step surface is formed between the necking hole and the inner hole; the inner hole wall is provided with a seal ring groove with the diameter of d, and the distance between the step surface and the seal ring groove is z; a<=e<b<=c<d, a+2f<=d, x<=s, and z<=s+t; a seal ring is located in the seal ring groove; transition between the step surface and the inner hole wall is achieved through a circular bead; a left seal piece, a valve ball and a right seal piece are sequentially arranged in a valve cavity formed in a valve port, the left end of a valve seat stretches into the valve cavity and is connected with the valve cavity, and a buffer seal gasket is arranged between the end face located at the right end of the valve port and the right end of the valve seat.

Description

technical field [0001] This technology relates to ball valves, specifically, a three-way (ball) valve. Background technique [0002] Currently common three-way ball valves, see figure 1 , 2 , it has a valve body 1, and the valve body has three communicating ports, one of which is a cap port 11 connected to a movable nut 2, and one port is a valve port 12 for installing a ball valve 5. [0003] The movable nut 2 includes an inner hole 21 at the front and a constriction 22 at the rear, and a stepped surface 23 is formed between the constriction and the inner hole. The specific connection structure between the cap port and the movable nut is: in order to install the movable nut 2, it is generally necessary to connect a pressure cap 4 through a thread pair in the cap port 11, and the protruding ring 41 of the pressure cap limits the forward movement of the movable nut thereby disengaging the cap port. But in this way, an additional part pressure cap 4 will be added, which in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/087
CPCF16K11/0873
Inventor 武良辰
Owner NANJING HUYOU METALLURGY MACHINERY MFG
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