KR19990003238A - Hollow switch - Google Patents

Abstract

Disclosed is to provide a hollow valve consisting of paddles to prevent rust in the paddles, to simplify the assembly and fabrication structure, to control the load, and to secure a receiving space that can accurately respond to hydraulic pressure. For technical challenges,

A first valve member 10 including a valve seat 14 having a reed switch 12 therein; A second valve member 20 which is connected to the first valve member 10 and forms a paddle hinge 22; And a paddle 30 protruding from the hinge shaft 34 in which a hinge hole 31 corresponding to the hinge hole 24 is formed while molding the magnet 32 for applying magnetic force to the limit switch 12 with synthetic resin. It provides a hollow valve comprising a).

Description

Hollow switch

The present invention relates to a flow valve. More specifically, the present invention relates to a hollow valve having a paddle structure for accurately responding to an inflow flow rate of the hollow valve.

In general, in order to know whether the flow rate of the pipe flows, a switching device that switches according to the flow of the flow is provided at the boundary where the pipe and the pipe meet, so that the light emitting element is switched according to the flow rate, so that the flow rate in a device using a small flow rate It is used as a device for displaying the flow state of, and is largely applied as a display device for informing the situation room.

The flow state display device of such a flow rate includes a first valve member having a reed switch, a second valve member having a paddle hinge at the same time, and a magnet for applying magnetic force to the limit switch. There is known a hollow valve consisting of paddles etched in the second valve member.

The paddle structure of such a valve is as shown in Figures 1A and 1B of the accompanying drawings. That is, the case 100 of the metal material in which the bolt hole 102 is formed with the magnet 400 embedded therein, and the shaft portion 202 having the hinge hole 204 formed therein to correspond to the case 100. And a plate body 200 and a fastening bolt 300 formed with a step 206 and a bolt hole 208 for receiving a flow rate.

The hollow valve having such a paddle structure has some problems as follows.

First, since the magnet is accommodated in the metal case, there is a problem that rust occurs in the whole case due to moisture permeating from the side when used for a long time, thereby weakening the magnetic force.

Second, since the case and the plate having a magnet, and separately manufactured to combine the plate body, there is a complexity in the assembly structure and processing has to be processed separately as a metal plate body separately.

Third, although a step is formed on the front of the plate (actually, the whole plate is bent to correspond to the water pressure), the hydraulic pressure received by the plate in the structurally unfolded state has a problem of receiving less water pressure because the capacity to stay momentarily is small.

Fourth, if the weight of the paddle once produced is too heavy or too light, there is a problem that must be processed or remanufactured.

Therefore, it is possible to prevent the occurrence of rust in the paddle and its weakening of the magnetic force, to simplify the assembly and fabrication process, and to implement an additional structure to control the paddle when the paddle load is not sensitive to the hydraulic pressure. There is a need for an improved structure of the paddle plate that can secure an accommodating space that can be accurately responded to.

In view of the above problems and necessity, the present invention can prevent rust from the paddle, simplify assembly and fabrication process, control load, and secure a receiving space that can respond precisely to water pressure. It is an object to provide a hollow valve having a paddle structure consisting of paddles.

Figure 1a is an exploded perspective view of a conventional paddle, Figure 1b is a cross-sectional view of the coupling state.

Figure 2 is an exploded perspective view of the present invention valve

3 is a perspective view of the present invention combined valve

4 is a perspective view of the paddle of the present invention valve

5 is a cross-sectional view of the present invention valve

※ Explanation of symbols for main parts of drawing

10: first valve member ..... 12: lead switch,

14: valve seat ..... 20: second valve member,

22: hinge axis ........ 24: hinge ball,

30: Paddle ..... 31: Hinge ball,

32: Magnet ... 34: Hinge shaft,

36: indentation ..... 38: pin ball,

40: pin ..... 50: sealing member,

60: Bolt.

The present invention for achieving the above object is characterized by molding the magnet with a synthetic resin. According to an aspect of the present invention, there is provided a valve for displaying a flow rate, the valve comprising: a first valve member including a valve seat incorporating a reed switch; A second valve member connected to the first valve and having a paddle hinge; And molding a magnet for applying magnetic force to the limit switch by using a synthetic resin to form a paddle stored in the second valve member, wherein the paddle forms a bucket-shaped recess for receiving resistance of input water. Forming a pin hole for load regulation provides the most preferred hollow valve.

Hereinafter, with reference to the accompanying drawings to explain the configuration and operation of the present invention.

FIG. 2 is an exploded perspective view of the present invention valve, FIG. 3 is a perspective view of the present invention, and FIG. 4 is a perspective view illustrating a paddle of the present invention valve, and FIG. 5 is a present invention valve. It is a cross section of.

According to these figures, the present invention largely consists of the first valve member 10, the second valve member 20, and the paddle (30).

The first valve member 10 includes a valve seat 14 having a reed switch 12 therein.

The second valve member 20 is connected to the first valve member 10 to form a paddle hinge 22. The paddle hinge 22 is formed with a hinge hole 24.

The paddle 30 is formed by molding a magnet 32 for applying magnetic force to the limit switch 12 with a synthetic resin, the hinge shaft 34 forming a hinge hole 31 corresponding to the hinge hole 24 This is done by inverting.

The paddle 30 is formed with a bucket-shaped concave portion 36 to properly receive the resistance of the input side, the weight adjustment pin hole 38 is formed through.

The assembly of the present invention configured as described above corresponds the hinge shaft 34 of the paddle 30 to the hinge shaft 24 of the second valve member 20 and then axially pins 40. The second valve member 20, the paddle 30 of which is pivotably rotatable, is interposed between the sealing member 50 and connected to the first valve member 10 to be bolted with a bolt 60.

In the present invention assembled as described above, when water or oil is input from the second valve member 20 at a constant pressure, the first valve member 10 is rotated about the axis of the hinge hole 31 by being pushed by the flow velocity of the paddle 30. The reed switch 12 incorporated in the valve seat 14 of the () is energized. The energization of the reed switch 12 causes a switching signal through the lead wire to apply an output signal to the display unit or the like to cause a predetermined light emission operation or the like.

Since the hollow valve having a paddle structure according to the present invention accommodates a magnet in a case of a conventional metal material, the problem of rust occurring in the entire case due to moisture permeating from the side when used for a long time is improved. Will improve.

On the other hand, in the prior art, since the structure and the assembly of the case and the plate body with a magnet and then separately assembled to combine them, there was a complicated structure and the hassle of processing, which must be processed and assembled separately to the metal plate body, but the present invention is a synthetic resin Molding process is made of a single part has the effect of simplifying assembly and fabrication structure.

In addition, the present invention provides a structure that can receive a sufficient resistance from the flow rate because the recessed portion is formed in a bucket type, even if the plate body formed with a step on the front of the conventional plate body is subjected to water pressure, the capacity is less sensitive to the problem that can not operate sensitively There is an effect, and even if the paddle plate body requiring such an accurate operation is difficult to control the load due to manufacturing errors, there is also an effect that can be properly adjusted through the pin hole.

Claims (3)

In the hollow valve for indicating the flow of the flow rate, A first valve member comprising a valve seat incorporating a reed switch; A second valve member connected to the first valve and having a paddle hinge; And A paddle which is formed on the second valve member by molding a magnet for applying magnetic force to the limit switch with a synthetic resin; Flow valve made of a. The flow valve of claim 1, wherein the paddle forms a bucket-shaped recess for receiving resistance of the input water. According to claim 1, Flow valve, characterized in that the weight adjustment pin hole is formed in the valve.