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Break valve and its assembly method

A technology of circuit breaker and partition wall, which is applied in the direction of valve device, valve operation/release device, circuit, etc. It can solve the problems of grain interface corrosion, gas leakage, stress corrosion, etc., and achieve high economy and prevent material strength. Effect of drop, high operating durability

Inactive Publication Date: 2005-02-02
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, there will be residual distortion between the welded metal structures, prone to grain interface corrosion and stress corrosion, and there is a risk of cracking and damage
Once the welding part 54 is damaged, there will be a problem of gas leakage
[0024] in addition, Image 6 The bearings 44 and 45 in the breaker valve of the present invention are high-priced radial ball bearings, and there is a problem that the overall cost becomes higher.

Method used

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  • Break valve and its assembly method
  • Break valve and its assembly method
  • Break valve and its assembly method

Examples

Experimental program
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Effect test

Embodiment 1

[0066] figure 1 It is a cross-sectional view of the shut-off valve in Embodiment 1 of the present invention in the valve-open state, figure 2 It is a perspective view of the flange and the valve body in the shut-off valve of Embodiment 1 of the present invention, image 3 shows a schematic diagram of the assembly process of the partition wall, the cover, the rotor, the radial / axial shared ball bearings on the opening end side and the bottom side of the partition wall in the circuit breaker valve according to Embodiment 1 of the present invention, wherein image 3 (a) is the assembly diagram before the cover is assembled, image 3 (b) is an assembly diagram of the cover in the insertion process, Figure 4 It is the partition wall, cover body, rotor, radial / axial shared ball bearings on the opening end side and the bottom surface side of the partition wall, valve body, spring and valve seat arranged in the flow path in the circuit breaker valve according to Embodiment 1 of th...

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PUM

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Abstract

Provided is a cutoff valve which can simultaneously achieve highly reliable gas tightness, stable operation performance by small electric power, operation durability, and profitability. The inside pan shape portion of a metallic partition wall, a recessed portion formed on a lid made of a metal sheet, a tip end small diameter shaft and a small diameter groove formed on a metallic rotary shaft, and a plurality of metallic balls form rolling bearings for serving as both a radial bearing and a thrust bearing respectively, and hold the axis of a rotor. Because linear expansion coefficients of the rotary shaft and the holding member side are almost equal, possibility of the locking due to a temperature change is low, and the minimum radial clearance can be set. Because the accuracy of the axis of the rotor is high, stable operation performance can be achieved by small electric power, and high operation durability can be achieved by a rolling motion. Because the rolling bearings for serving as both the radial bearing and the thrust bearing are configured, high profitability can be achieved.

Description

technical field [0001] The present invention relates to a safety valve (International Patent Classification F16K31 / 04) using an electric motor as an operating device in a safety valve (International Patent Classification F16K17 / 36) that performs corresponding operations according to external conditions, in particular to a safety valve used to prevent gas accidents A circuit breaker used as a circuit breaker in a gas circuit breaker, and more specifically, relates to a valve body that moves back and forth relative to a valve seat provided in a flow channel to perform a circuit breaker / restoration operation of the flow channel and a power source Use the cut-off valve for the motor. Background technique [0002] In order to prevent gas accidents, various safety devices have been used for a long time. Wherein a kind of gas meter is called a microcomputer meter, which is driven by a battery power source, is equipped with a microcomputer, and is provided with a gas circuit breake...

Claims

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Application Information

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IPC IPC(8): F16K31/04F16K17/36
CPCH01B3/30H01B7/18H01B11/06
Inventor 山口正树笠岛伸正
Owner PANASONIC CORP
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