Improved valve for gas systems
A technology of ball valve and valve body, which is applied in the field of ball valve with improved design, can solve problems such as difficult unification, and achieve the effects of reducing materials, improving clarity, and improving convenience
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[0036] In each figure, the same parts are denoted by the same reference numerals.
[0037] With reference to prior ball valve 1, such as coal ball valve, it comprises valve body 2, and inlet 3 is arranged on it, outlet 4, vice versa also can, the middle of the two is inner cavity 6. A spherical valve 7 can be adorned in the inner cavity, supported by two washers 9 opposite and engaged with the drive screw 11, a through hole 8 is arranged in the valve 7. Can assemble a transmission rod 12 that geometric shape cooperates with it on the screw rod 11, and clamp on the screw rod 11 with fastening nut 13.
[0038] As shown in Figure 4, in order to make the geometry of the transmission rod 12 and the screw rod 11 fit well, in the shown embodiment, there are two opposite planes 14, 16 on the screw rod 11, and there are corresponding recesses on the transmission rod 12. mouth 17, see Figure 4A .
[0039] In the threaded end 18 of the screw 11 there is an axial blind hole 19 . When ...
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