Rotary angle limiting mechanism of rotary valve and regulator therewith

A technology of rotation angle and limiting mechanism, applied in the direction of valve details, mechanical equipment, valve operation/release device, etc., can solve the problems of inability to disassemble and inaccessibility

Inactive Publication Date: 2003-11-19
巴阀门株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] As described above, the rotation angle limiting mechanism of the rotary valve in the conventional regulator is integrally assembled inside the regulator, and it is difficult to access it from the outside.
Therefore, the rotation angle limiting mechanism cannot be disassembled

Method used

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  • Rotary angle limiting mechanism of rotary valve and regulator therewith
  • Rotary angle limiting mechanism of rotary valve and regulator therewith
  • Rotary angle limiting mechanism of rotary valve and regulator therewith

Examples

Experimental program
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Embodiment Construction

[0027] Embodiments of the present invention will be described below with reference to the drawings. Figure 4 It is a bottom view of the regulator model of the present invention. Figure 5 Yes Figure 4 A-A cutaway view of the regulator shown. Image 6 It is a bottom view of other regulator models of the present invention. Figure 7 Yes Image 6 Bottom view of the shown adjuster with its axis of rotation turned again. Figure 8 is in Image 6 Bottom view of the regulator shown with an additional cam installed. Figure 9 It is a top view of the cam used in the present invention. Figure 10 It is to Figure 9 The B-B sectional view when the shown cam is arranged on the rotating shaft. Figure 11 is to use Figure 9 Bottom view of the regulator with the cam shown and the upper limit of the angle of rotation being 90 degrees. Figure 12 is set to Figure 9 Bottom view of the adjuster with the cam shown turned over and changing direction and limiting the upper limit of t...

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PUM

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Abstract

The invention provides a rotational angle limiting mechanism of a rotary valve for easily changing the upper limit or the lower limit of the opening angle of a valve element of the rotary valve as necessary, and an actuator having the rotational angle limiting mechanism. In the actuator having a rotary shaft having a fitting part to a valve shaft of the rotary valve at a lower end thereof and a rotating mechanism to rotate the rotary shaft, a cam is attachably / detachably fitted to a lower end of the rotary shaft from an open port formed in a lower surface of the actuator, and a stopper bolt which collides with a specified part on a circumferential edge of the cam to restrict the rotation of the cam is added to the actuator.

Description

technical field [0001] The invention relates to a rotation angle limiting mechanism of a rotary valve. Furthermore, the present invention also relates to an adjuster provided with the above mechanism. Background technique [0002] Generally, the valve body of a rotary valve such as a ball valve or a butterfly valve can only be opened and closed within a range from a fully closed position to a fully open position of 90 degrees. Therefore, a rotation angle limiting mechanism of the rotary valve is provided on the rotary valve. In the rotation angle limiting mechanism of the rotary valve, the valve body cannot rotate beyond the fully closed position, and cannot open the valve body beyond 90 degrees. [0003] However, the rotary valve does not open the valve body to the fully open position due to circumstances, for example, it only opens to an angle of 70 degrees from the fully closed position, and there is no need to open more than that. Therefore, the opening degree limitin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K35/00F16K31/04F16K31/44
CPCF16K31/043F16K31/524F16K35/04F16K51/00
Inventor 山口和磨
Owner 巴阀门株式会社
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