a three-way valve
A three-way valve, valve body technology, applied in multi-way valve, valve details, valve device and other directions, can solve the problem of high price, achieve the effect of simple structure, low cost and compact structure
Inactive Publication Date: 2018-08-31
NANJING HUYOU METALLURGY MACHINERY MFG
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- Description
- Claims
- Application Information
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Problems solved by technology
Quick connectors belong to the existing technology, but the price is higher
Method used
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[0024] The technology will be further described below in conjunction with the accompanying 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=diam...
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The invention provides a three-way valve which is simple in structure, simple and convenient to install, low in cost, and reliable in seal. The three-way valve is provided with a valve body, wherein a clamping groove with a width s is formed in the periphery of a cap port with a diameter a, and a snap spring is embedded in the clamping groove; a distance from the front end surface of the cap port to the clamping groove is t; the width of the snap spring is f, and the thickness thereof is x; the outer diameter of the snap spring after being embedded in the clamping groove is b; a movable nut comprises a front inner hole and a rear necking port, the diameter of the inner hole is c, and the diameter of the necking port is e; a step surface is formed between the necking port and the inner hole; a sealing ring groove with a diameter d is formed in the wall of the inner hole, and the distance from the step surface to the sealing ring groove is z; a is not greater than e, e is less than b, b is not greater than c, and c is less than d, a+2f is not greater than d, x is not greater than s, and z is not greater than s+t; a sealing ring is located in the sealing ring groove; the section of the snap spring is circular, and the section of the clamping groove is arc-shaped; and a left sealing sheet, a valve ball and a right sealing sheet are sequentially arranged in a valve cavity in a valve port, the left end part of a valve seat stretches in the valve cavity and is connected with the valve cavity, and a buffering sealing gasket is arranged between the end surface of 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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IPC IPC(8): F16K27/06F16K11/087
CPCF16K11/0873F16K27/067
Inventor 武良辰
Owner NANJING HUYOU METALLURGY MACHINERY MFG