Valve body feeding mechanism of fluid control valve and fluid control valve using the mechanism
A technology of fluid control valve and feed mechanism, which is applied in the field of valve body feed mechanism and fluid control valve, which can solve the problems of damage to the function of fluid control valve, thread bite, poor opening and closing action, etc., and achieve reliable opening and closing The effect of action
Active Publication Date: 2015-04-15
SAGINOMIYA SEISAKUSHO INC
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Problems solved by technology
[0017] However, in the case where the male screw and the female screw are composed of different resins such as thermoplastic resin and thermosetting resin, for example, due to the large difference in physical properties such as thermal expansion coefficient, the sliding properties of the male screw and the female screw are affected by temperature changes. As a result, the bite of the thread occurs, the effect of the thread cannot be achieved, the opening and closing action of the valve is not good, and the function of the fluid control valve is damaged.
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Embodiment Construction
[0054] Embodiments (examples) of the present invention will be described in more detail below based on the drawings.
[0055] figure 1 It is an embodiment of the fluid control valve to which the valve body feeding mechanism of the fluid control valve of the present invention is applied, and is a longitudinal sectional view showing the valve open state, figure 2 yes means figure 1 A longitudinal sectional view of the fluid control valve in the middle of the opening and closing operation, image 3 yes means figure 1 A longitudinal sectional view of the closed state of the fluid control valve, Figure 4~Figure 5 is description figure 1 Schematic diagram of the feed screw mechanism.
[0056] exist Figure 1~Figure 3 In , symbol 10 denotes a fluid control valve to which the valve body feeding mechanism of the present invention is applied as a whole.
[0057] Such as Figure 1~Figure 2 As shown, the fluid control valve 10 includes a valve main body (lower housing) 12 , and ...
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PROBLEM TO BE SOLVED: To provide a feeding mechanism of a valve body of a fluid control valve, which reliably functions as a screw feeding mechanism and reliably opens or closes a valve without deteriorating sliding performance of a sliding part of a sliding mechanism, and to provide a fluid control valve using the same.SOLUTION: A substrate of one member in a sliding part and a substrate of the other member in the sliding part are made of either thermoplastic resin or thermosetting resin. At least one contact surface of the substrates is covered with either the thermoplastic resin or thermosetting resin which are different from the resin constituting the substrate.
Description
technical field [0001] The present invention relates to a valve body feeding mechanism having a sliding portion such as a screw portion of a screw feeding mechanism and a sliding portion of a sliding mechanism in fluid control valves such as electric valves and solenoid valves, and a fluid control valve using the same. Background technique [0002] Conventionally, as a feed screw used in a fluid control valve, a metal feed screw mixed with a solid lubricant or the like, a ball screw, or a feed screw having a complicated structure can be used. [0003] In recent years, advances in resin materials and compounding agents have been used only in limited applications, but for the purpose of improving durability and reducing costs, feed screws made of resin materials have also appeared. [0004] As this tendency further expands, use under severer use conditions or higher load conditions has also been studied. [0005] For example, Patent Document 1 (Japanese Patent Application Lai...
Claims
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IPC IPC(8): F16K1/32
Inventor 中野诚一日下直树宫寺佑孝
Owner SAGINOMIYA SEISAKUSHO INC