KR101389798B1 - Soft seal disc swing check valve - Google Patents

Abstract

The present invention relates to a soft-seal disc swing check valve and, more specifically, to a soft-seal disc swing check valve which employs a bending unit reinforcing structure to prevent a disc from getting damaged when the disc is turned on/off by the pressure of a fluid inside the swing check valve and to prevent the disc from getting destroyed due to the breaking or damage of the bending unit caused by an area bending by the pressure of the fluid and the fatigue fracture on the area, wherein the bending unit is between a rotation unit, of which the disc is connected to the main body of the swing check valve, and a first reinforcement body which reinforces the rotation unit and the disc from the inside.

Description

SOFT SEAL DISC SWING CHECK VALVE

The present invention relates to a soft seal disk swing check valve that can prevent a bent portion where a disk in a swing check valve is connected to a swing check valve from being damaged by fluid pressure.

In the conventional water supply system, a water tank is installed to supply water to the building because it was required to install the emergency water supply facility, relieved pressure fluctuation of the water pipe, and stabilized watering of the rain water. However, this method has resulted in water pollution and energy waste, so direct water supply system and direct direct pressure system appeared as an alternative. The direct connection water supply system refers to a system in which a water supply pipe is connected directly from a water main pipe, and the direct connection direct water supply system refers to a system for supplying water from a water supply pipe to a water supply system directly without supplying water in a building. In order to safely feed water in the direct pressure and direct feed water system, it is important to prevent backflow of the fluid.

As a general means of preventing backflow of fluid, a swing check valve is used in which the fluid flows in only one direction and the valve automatically closes during back flow.

The conventional swing check valve includes a rotating arm rotating around a rotating shaft inside a cylindrical case and a disk fixed to a free end of the rotating arm to open and close the fluid path.

In the operation of the swing check valve as described above, when the fluid flows through the inlet port in a static pressure state, the disk is rotated upward due to the hydraulic pressure. On the other hand, when the pressure at the inlet port becomes lower than the pressure at the outlet port, the disk is rotated downward to close the flow path, thereby preventing reverse flow of the fluid.

However, in such a conventional swing check valve, due to the pressure of the fluid, a certain portion of the bending occurs around the rotating shaft to which the disc is connected or in a portion where no additional reinforcing member is inserted in the disc. Or repetitively occurs, there arises a problem that the portion where warping occurs is broken or broken by fatigue breakage or the like.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a swing check valve which is capable of preventing the swinging of the swinging check valve due to the pressure of the fluid, And a second reinforcing member for connecting the first reinforcing member and the pivoting member to each other at a portion where warping occurs in the disc, Wherein the swing check valve includes a swing check valve for swinging the swing check valve, a swing check valve for swinging the swing check valve, and a swing check valve for swinging the swing check valve.

Other objects and advantages of the present invention will be described hereinafter and will be understood by the embodiments of the present invention. Further, the objects and advantages of the present invention can be realized by the means and the combination shown in the claims.

In order to solve the above problems, the present invention provides a swing check valve comprising: a swing check valve body installed on a pipe; One end of the swinging check valve body 20 is connected to the swinging check valve body 20 by forming a swinging part 31 so as to be turned on and off by a pressure difference between the fluid inlet 21 and the outlet 22, (30); A first reinforcement member 40 installed inside the disc main body 30 to reinforce the disc main body 30; Is embedded in the disk body (30) so as to connect the bent portion (32) from the rotary portion (31) to one end of the first reinforcing member (40), thereby reinforcing the bent portion (32) To prevent breakage or breakage of the first reinforcement member (50); And a control unit.

As described above, according to the present invention, it is possible to prevent the bent portion of the swing check valve from being damaged by repetitive and continuous operations due to the fluid pressure.

In addition, the present invention provides an air tank, an air vent valve, and the like, so that air in the swing check valve can be drained to control the internal pressure.

1 is a perspective view of an embodiment showing a first embodiment of a soft seal disk swing check valve according to the present invention;
FIG. 2 is a perspective view of an embodiment showing a soft-seal disk swing check valve having an air tank and an air vent valve together in the present invention. FIG.
3 is a perspective view of an embodiment of a soft-disc swing check valve provided with an air vent valve in the present invention.
4 is a perspective view of an embodiment of a soft seal disk swing check valve having an air tank according to the present invention.

Before describing in detail several embodiments of the invention, it will be appreciated that the application is not limited to the details of construction and arrangement of components set forth in the following detailed description or illustrated in the drawings. The invention may be embodied and carried out in other embodiments and carried out in various ways. It should also be noted that the device or element orientation (e.g., "front,""back,""up,""down,""top,""bottom, Expressions and predicates used herein for terms such as "left,"" right, "" lateral, " and the like are used merely to simplify the description of the present invention, Or that the element has to have a particular orientation.

The present invention has the following features in order to achieve the above object.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

Accordingly, in one embodiment of the present invention,

A swing check valve body (20) installed on the pipeline; One end of the swinging check valve body 20 is connected to the swinging check valve body 20 by forming a swinging part 31 so as to be turned on and off by a pressure difference between the fluid inlet 21 and the outlet 22, (30); A first reinforcement member 40 installed inside the disc main body 30 to reinforce the disc main body 30; Is embedded in the disk body (30) so as to connect the bent portion (32) from the rotary portion (31) to one end of the first reinforcing member (40), thereby reinforcing the bent portion (32) And a second reinforcing member (50) for preventing breakage or breakage.

The swinging check valve body 20 is provided with an air tank 20 communicating with the inside of the swing check valve body 20 to allow the air in the channel or swing check valve body 20 to be discharged to the outside, (60); Is further provided.

An air vent valve (not shown) is provided at an upper portion of the swing check valve body 20 so as to communicate with the inside of the swing check valve body 20 and allows the air in the duct or swing check valve body 20 to be discharged to the outside 70); Is further provided.

The swinging check valve body 20 is provided with an air tank 20 communicating with the inside of the swing check valve body 20 to allow the air in the channel or swing check valve body 20 to be discharged to the outside, (60); An air vent valve 70 installed in an upper portion of the swing check valve body 20 and communicating with the inside of the swing check valve body 20 for allowing the air in the duct or swing check valve body 20 to be discharged to the outside, ; A branch portion 80 having one end connected to the upper portion of the swing check valve body 20 and the other end branched to be simultaneously connected to the air tank 60 and the air vent valve 70; Is included.

The disk body 30, the first reinforcement member 40, and the second reinforcement member 50 are formed of rubber, metal, or nylon, respectively.

Hereinafter, a soft seal disk swing check valve according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4. FIG.

As shown, the soft-seated disk swing check valve 10 according to the present invention includes a swing check valve body 20, a disk body 30, a first reinforcement 40, and a second reinforcement 50 do.

The swing check valve body 20 has a cylindrical body shape with both open ends and an empty interior. The disk body 30 (or disk) is provided inside the swing check valve body 20, Is opened or closed.

The swing check valve body 20 has a top contact portion 24 for supporting an upper end portion of the disc main body 30 so as to protrude from the outer circumferential upper portion of the disc main body 20 in order to obliquely obliquely install the disc main body 30 , And the lower end protruding portion (23) at which the lower end of the disk body (30) is in contact with the swing check valve body (20) when the swinging check valve body (20) is closed.

1, when the fluid flows from the inlet 21 side (left side) to the right side, the disk body 30 is lifted by the hydraulic pressure, and the swing check valve body 20 is opened, When the fluid flows backward from the swing check valve body 20 to the inlet 21 side from the outlet 22 side, that is, when the pressure on the inlet 21 side is lower than the pressure on the side of the outlet 22 The disk main body 30 rotates downward so that the upper end of the disk main body 30 contacts the upper end contact portion 24 and the lower end of the disk main body 30 contacts the lower end projecting portion 23, It is laid in a diagonal line inside and seals the inside.

As described above, the disc main body 30 is closed by opening or closing the inside of the swing check valve body 20 while flowing upward or downward by the pressure of the fluid flowing in the swing check valve body 20, And prevent reverse flow.

The disc main body 30 is formed in a disc shape so as to correspond to a cylindrical swing check valve body 20 and has an upper end rotatably connected to the inner peripheral upper portion of the swing check valve body 20, (31). That is, the disk body 30 can flow upward and downward with respect to the swivel portion 31 connected to the swing check valve body 20.

The disc main body 30 is made of an elastic material such as rubber and is made of a metal material such as iron to reinforce the disc main body 30 of elastic material. The first reinforcement member 40 is inserted in the longitudinal direction.

However, even if the first reinforcing member 40 is installed, the disc main body 30 may include the turning portion 31 connected to the swing check valve body 20 and the inner turning portion 31 of the disc main body 30, (The portion not reinforced by the first reinforcing member 40, which portion is referred to as the "bent portion 32" in the present invention) from the first reinforcing member 40 to the first reinforcing member 40 The fluid is drawn into the inlet 21 and lifted up to open the disk body 30 or the disk body 30 is lowered because the pressure on the side of the outlet 22 is higher than the side of the inlet 21 A portion of the periphery of the rotary part 31 and the bent part 32 are bent by the pressure of the fluid. When the disk body 30 is turned on / off (repeatedly opened / closed) repeatedly, When the bending portion 32 is bent repeatedly, the bending portion 32 is broken or damaged. .

Therefore, in the present invention, the second reinforcing member 50 connecting the bending portion 32, that is, the one end of the first reinforcing member 40 from the pivot portion 31 of the disc main body 30, 30 so that the bent portion 32 can be reinforced.

Although nylon is used as the material of the second reinforcing member 50, if the reinforcing member 50 is used for durability reinforcement of the disk, various modifications may be made according to the embodiment of the user.

In addition, the second reinforcing member 50 is formed such that both ends of the second reinforcing member 50 are overlapped on the outer peripheral edge and both surfaces of the first reinforcing member 40 within the disc main body 30, The portion of the first reinforcing member 40 and the portion of the pivoting member 31 are reinforced by reinforcing the portion where the first reinforcing member 40 does not exist, As shown in FIG.

The air tank 60 is installed to communicate with the outer circumferential upper end of the swing check valve body 20 and is used to adjust the pressure inside the swing check valve body 20. That is, when the fluid flows back into the swing check valve body 20 and the pressure increases, the air inside the swinging check valve body 20 is discharged to the air tank 60 to collect the pressure inside the swing check valve body 20 In contrast, when the fluid flows normally from the inlet 21 to the outlet 22, the stored air is discharged to the outside.

The air vent valve 70 is similar to the air tank 60 described above and is provided so as to communicate with the outer peripheral upper end of the swing check valve body 20 like the air tank 60, The operation of discharging the air of the swing check valve body 20 to the outside is performed in order to adjust the pressure inside the swing check valve body 20,

The air vent valve 70 may be an automatic air vent valve or the like. The function of the air vent valve 70 and the air tank 60 is a function of discharging air to the outside in order to regulate the pressure of the inside by being installed in a valve or a pipeline. In the present invention, only the air tank 60 may be integrally used as the swing check valve body 20, or only the air vent valve 70 may be integrally used or the air tank 60 and the air vent valve (70) can be used together at the same time.

The branching section 80 can be used when the swinging check valve body 20 (or the swinging check valve is used with the air tank 60 and the air vent valve 70 at the same time) as described above, One end of the swinging check valve body 20 is communicated with the inside of the swing check valve body 20 while the other end thereof is branched into two and the air tank 60 and the air vent valve 70 So that the air tank 60 and the air vent valve 70 can be used together with a single swing check valve.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood that various changes and modifications may be made without departing from the scope of the appended claims.

10: Soft seal disk swing check valve 20: Swing check valve body
21: inlet 22: outlet
23: lower protrusion 24: upper contact portion
30: disk body 31:
32: bending portion 40: first reinforcing member
50: second reinforcing member 60: air tank
70: air vent valve

Claims (5)

A swing check valve body (20) installed on the pipeline;
One end of the swinging check valve body 20 is connected to the swinging check valve body 20 by forming a swinging part 31 so as to be turned on and off by a pressure difference between the fluid inlet 21 and the outlet 22, (30);
A first reinforcement member 40 installed inside the disc main body 30 to reinforce the disc main body 30;
Is embedded in the disk body (30) so as to connect the bent portion (32) from the rotary portion (31) to one end of the first reinforcing member (40), thereby reinforcing the bent portion (32) To prevent breakage or breakage of the first reinforcement member (50);
An air tank 60 (not shown) is provided at the upper part of the swing check valve body 20 to communicate with the inside of the swing check valve body 20 and allows the air in the channel or swing check valve body 20 to be discharged to the outside for storage. );
An air vent valve 70 installed in an upper portion of the swing check valve body 20 and communicating with the inside of the swing check valve body 20 for allowing the air in the duct or swing check valve body 20 to be discharged to the outside, ;
And a branching part 80 connected to the upper part of the swing check valve body 20 at one end and branched at the other end to be simultaneously connected to the air tank 60 and the air vent valve 70,
The disk body 30, the first reinforcement member 40, and the second reinforcement member 50 are formed of rubber, metal, or nylon, respectively,
The swing check valve main body 20 includes a swing check valve main body 20 having a top contact portion 24 for supporting an upper end of the disk main body 30, And the lower end protruding portion 23 is formed at the outer circumferential lower end of the disk main body 30, the lower end of which is in contact with the swing check valve body 20 when the swinging check valve main body 20 is closed,
The second reinforcing member 50 has a structure in which both ends of the second reinforcing member 50 are overlapped with both the outer circumferential edge and the outer circumferential edge of the first reinforcing member 40 within the disc main body 30, The portion of the disk body 30 where the first reinforcing member 40 does not exist is reinforced while the portion of the first reinforcing member 40 is in contact with the portion of the disk body 30, (31) of the swinging check valve.
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