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Bonnet

A technology for bonnets and control valves, applied in the direction of valve lifts, valve details, valve devices, etc., can solve problems such as complexity and increased corrosion risk, and achieve the effect of low cost

Active Publication Date: 2018-01-19
FLUHS DREHTECHN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The application of the shaft fixation however presents complexities during assembly
In addition, the risk of corrosion increases, especially when using a shaft holder made of a different material than the top or the mandrel

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The bonnet chosen as an embodiment has a top 1 which is penetrated centrally by a mandrel 2 guided radially therein. Via the spindle 2 , a valve body 3 is actuated, which abuts against a valve seat of a housing (not shown). The valve body 3 has an approximately cylindrical valve plunger 33 which accommodates the sealing disk 4 . The top 1 consists of a symmetrical, sleeve-like hollow body which is open at both ends. On its side facing away from the valve body 3 , the top 1 has a section 11 with a reduced diameter. At the free end of the reduced-diameter section 11 , a detent nose 12 is formed circumferentially on the inside, which is formed as a ring-shaped circumferential projection. At its end facing the valve body 3 , the top 1 is externally provided with a coupling thread 13 . By means of the coupling thread 13 the top 1 can be screwed into the (not shown) housing of the armature.

[0017] After screwing in, the screw-in flange 14 of the top 1 rests on the (not ...

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PUM

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Abstract

The part has a spindle (2) centrally penetrating into a head piece (1) and rotatably mounted in the head piece at a longitudinal axis. The spindle is actuated by a valve body (3), where the spindle and the head piece comprise latch units that are positively connected with one another. The head piece comprises a circumferential detent that radially extends toward the longitudinal axis and engages with a circumferential annular notched groove i.e. indentation groove, in the spindle. A stop ring engages with the groove of the spindle and the head piece, and is made of plastic. The circumferential detent is formed as a circumferential annular projection.

Description

technical field [0001] The invention relates to a valve cap with a top, which is penetrated centrally by a spindle, which is mounted rotatably about its longitudinal axis in the top and via which a valve body can be actuated. Background technique [0002] Bonnets of the above-mentioned type are known in various designs. A valve cap is thus known, for example from GB 2 137 736 A, in which a valve plunger is provided for controlling the flow of fluid, which is linearly displaceable in the top via a spindle. From DE 20 2008 001 495 U1 there is also known a bonnet for an armature, in which the top is pierced by a mandrel, which is connected to the control disk, wherein a torsion-proof bonnet is arranged in the top Inlet disk, which is arranged between the control disk and the likewise torsion-proof outlet disk. By rotation of the spindle, the control disk can be moved relative to the torsionally fixed inlet disk. In a bonnet of the type described above, a perforation is arran...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K27/12F16K25/02F16K1/36
CPCF16K1/02F16K27/08F16K31/50F16K31/508
Inventor F.图劳
Owner FLUHS DREHTECHN