Processing method of eccentric sphere embedded plastic ball valve and product thereof

A technology of plastic ball valve and processing method, applied in valve details, valve device, valve shell structure and other directions, can solve the problems of difficult valve switching operation, negative changes in ball valve assembly size, sealing failure, etc., to solve the difficulty of accurate opening and closing limit , Solve the problem of long-term sealing, and ensure the effect of opening and closing operability

A technology of plastic ball valve and processing method, applied in valve details, valve device, valve shell structure and other directions, can solve the problems of difficult valve switching operation, negative changes in ball valve assembly size, sealing failure, etc., to solve the difficulty of accurate opening and closing limit , Solve the problem of long-term sealing, and ensure the effect of opening and closing operability

CN101949459AInactive Publication Date: 2011-01-19谢一环 +1
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  • Processing method of eccentric sphere embedded plastic ball valve and product thereof
  • Processing method of eccentric sphere embedded plastic ball valve and product thereof
  • Processing method of eccentric sphere embedded plastic ball valve and product thereof

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Embodiment Construction

[0031] The present invention is specifically described below by the embodiment, only for further illustrating the present invention, can not be interpreted as the limitation of protection scope of the present invention, the technical engineer of this field can make some non-essential improvements and improvements to the present invention according to the content of the above-mentioned invention Adjustment.

[0032] Such as figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 As shown, it includes a valve body 1, a lower shaft sleeve 2, an eccentric sphere 3, a plastic valve seat 4, a special-shaped sealing ring 5, an upper shaft sleeve 6, and a driving mechanism 8 for driving the rotation of the sphere.

[0033] The eccentric sphere 3 is molded by plastic casting; the upper end of the eccentric sphere 3 is provided with an upper shaft handle 31, and the upper shaft handle 31 is inserted into a combined seal composed of an O-shaped sealing ring 32, an upper shaft sleev...

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Abstract

The invention discloses a processing method of an eccentric sphere embedded plastic ball valve and a product thereof. The eccentric sphere embedded plastic ball valve comprises an eccentric sphere, a valve body and a driving mechanism and the invention provides a processing method thereof, wherein the driving mechanism drives the sphere to rotate. The eccentric sphere of the valve and the valve seat can be embedded in a die, and the valve body are integrally cast and shaped. The integral strength of the valve manufactured by the invention is higher than that of the valve body manufactured by the prior art, and the valve body stress is evenly distributed to lighten creep generated by stress concentration so as to greatly improve the durability of the ball valve. The ball valve has good sealing property, is easy to switch on and off, has accurate position, reduces processing steps, saves consumables and has obvious quality meaning and economic benefit.

Description

technical field [0001] The invention relates to a plastic ball valve structure, in particular to a processing method of an eccentric ball embedded plastic ball valve and a product thereof. Background technique [0002] Compared with traditional metal ball valves, plastic ball valves have many advantages such as light weight, convenient manufacture, low cost and corrosion resistance, and have been more and more widely used. [0003] Its valve body and spheroid part of existing plastic ball valve are all formed by direct casting of plastics. Due to the need to assemble the sphere, the plastic valve body used in the project is divided into two pieces on the left and right or three pieces on the left, middle and right, and is sealed with locking threads. [0004] Due to the material of the plastic ball valve under the action of large stress, it will undergo short-term deformation and creep deformation with time growth, which will cause negative changes in the various assembly d...

Claims

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Application Information

Patent Timeline
19 Jan 2011
Publication
CN101949459A
IPC
F16K5/06; F16K5/20; F16K5/08; F16K27/06
Inventors
谢一环; 刘福江