KR200284326Y1 - Damage prevention device for disk arm the check valve - Google Patents

Abstract

The present invention relates to a disk arm breakage prevention structure for a check valve that can not only buffer the rotational force of the rotating disk arm by the pressure of the cooling water, but also adjust the amount of the cooling water moving through the check valve. In the check valve is installed and the disk arm is rotated in one direction to the inside of the body to prevent the cooling water flow back, the insertion hole formed in the upper side of the outlet side through which the cooling water of the check valve body is discharged, screwed into the insertion hole Is made of an elastic plate to adjust the rotation distance of the disk arm, and elastically installed by the spring fixedly coupled to the end of the adjustment bolt to buffer the rotational force of the disk arm.

Description

Disc Arm Damage Prevention Structure for Check Valve {DAMAGE PREVENTION DEVICE FOR DISK ARM THE CHECK VALVE}

The present invention relates to a disc arm breakage prevention structure for a check valve, and more particularly, a check valve that can adjust the amount of coolant moving through the check valve as well as buffering the rotational force of the rotating disk arm by the pressure of the coolant. Disc disk breakage prevention structure.

In general, the cooling water supply facility supplies the cooling water stored in the sump through the supply pipe by supplying the supply pump, and the supply pipe connected between the supply pump and the discharge valve from which the cooling water is discharged has the cooling water reversed through the supply pipe when the supply pump is stopped. In order to prevent this from being installed in one direction only the check valve bar, there is an urgent need for a device that can adjust the amount of cooling water moving through the check valve.

As shown in FIG. 1, the conventional check valve 1a has a cover 20a fixed to the upper side of the body 10a by a fixing bolt 21a and a flange 11a having a supply pipe 30a coupled to both sides thereof. Is installed and the inside of the body (10a) is formed with a partition wall (40a) having a through-hole 41a for moving the cooling water.

And a hinge shaft (50a) is formed on the inner upper portion of the body (10a) and the disc shaft (60a) is installed on the hinge shaft (50a) is rotated by the pressure of the coolant when the coolant moves and the disk arm (60a) The disk 61a for sealing the through-hole 41a formed in the partition 40a is provided in one surface of the.

Therefore, when the supply pipe 30a is connected to the flanges 11a formed on both sides of the body 10a, and the cooling water is supplied to the supply pipe 30a, the disk arm 60a is hinged by the pressure and flow of the cooling water. Since it rotates around the through hole 41a formed in the partition wall 40a of the body 10a, the coolant moves.

In addition, when the supply of the cooling water is interrupted or the direction of movement is reversed, the disk arm 60a is rotated by its own weight, and the disk 61a installed therein seals the through hole 41a, thereby preventing the reverse flow of the cooling water. .

However, when the coolant is re-supplied through the supply pipe 30a in the state where the through-hole 41a is closed in this manner, and the disk arm 6 rotates, the disk arm 60a is struck by the inner surface of the body 10a. When the disk arm 60a is deformed or broken or severe, the body 10a is broken and the service life thereof is shortened.

Therefore, when replacing and repairing the disk arm 60a, the cover 20a installed on the upper portion of the body 10 is opened and the disk arm 60a is exchanged and repaired, so that the fixing bolt 21a for coupling the cover 20a is worn out. There was a problem that the life of the body (10a) is shortened.

The present invention has been devised to solve the above problems, the buffer rotated by the coolant to buffer the rotational force of the disk arm struck the body to extend the service life of the disk arm and body as well as check the amount of movement of the coolant can be adjusted It is an object of the present invention to provide a disc arm breakage prevention structure for a valve.

Disc arm breakage prevention structure for the present design check valve for achieving the above object is installed in the supply pipe to move the coolant in the check valve is installed in the disc arm is rotated in one direction to the inside of the body to prevent the coolant flow back And, the insertion hole formed in the upper side of the outlet side to discharge the coolant of the check valve body, the adjustment screw is screwed to the insertion hole for adjusting the rotation distance of the disk arm, and elastic installation by the spring fixedly coupled to the end of the adjustment bolt It is made of an elastic plate to buffer the rotational force of the disk arm.

1 is a cross-sectional view showing a general check valve.

2a and 2b is a cross-sectional view of the check valve according to the present invention.

<Explanation of symbols for main parts of drawing>

1: check valve 10: body

11: flange 30: supply pipe

40: bulkhead 41: through hole

50: hinge axis 60: disk arm

61 disc 70 insertion hole

80: adjusting bolt 90: elastic plate

91: spring

Hereinafter, the present invention will be described in detail with reference to FIGS. 2A and 2B.

2A and 2B are cross-sectional views showing a check valve in which the present invention is installed, and the check valve 1 of the present invention has a cover 20 fixed to the upper side of the body 10 by a fixing bolt 21 and a supply pipe (on both sides). A flange 11 to which 30 is coupled is installed, and a partition wall 30 having a through hole 31 is formed in the body 10.

A hinge shaft 50 is formed at an inner upper portion of the body 10, and a disk arm 60 is installed at the hinge shaft 50 to be rotated by the pressure of the coolant, and one surface thereof has a through hole formed in the partition 40. The disk 61 for sealing 41 is provided.

On the other hand, an insertion hole 70 is formed at the upper side of the outlet side from which the coolant is discharged, and the adjustment bolt 80 for adjusting the amount of rotation of the disc arm 60 is screwed into the insertion hole 70.

And a spring 91 is fixedly installed at the end of the adjustment bolt 80 and the end of the control bolt 80 is connected to the rotating disk arm 60, the elastic plate of rubber material for buffering the rotational force of the disk arm 60 ( 90) is installed.

The present invention configured as described above is connected to the supply pipe 30 to the flange 11 formed on both sides of the check valve (1) body 10 and then supply the cooling water to the supply pipe 30 by the pressure and water flow of the cooling water Since the disk arm 60 rotates about the hinge shaft 50, the through hole 41 formed in the partition 40 of the main body 10 is opened, so that the coolant moves through the check valve 1.

In addition, when the supply of the cooling water is stopped, the disk arm 60 is rotated by its own weight, so that the disk 61 installed therein seals the through-hole 41 so that backflow of the cooling water is prevented and the cooling water inside the supply pipe 30 is prevented. When flowing in the reverse direction, the disk 61 is closely connected to the through hole 41 by the water flow flowing in the reverse direction, thereby preventing the reverse flow of the cooling water.

When the cooling water is re-supplied through the supply pipe 30 while the through-hole 41 is closed as described above, the disk arm 60 rotates so that one side of the disk arm 60 is spring 91 to the adjustment bolt 80. It is connected to the elastic plate 90 is installed in the) is prevented from rotating.

Accordingly, when the adjustment bolt 80 is rotated and tightened or loosened, the distance between the elastic plate 90 and the disk arm 60 installed at the end of the adjustment bolt 80 is variable, thereby being rotated by the water flow and pressure of the cooling water. Since the rotation distance of the disk arm 60 can be adjusted, the amount of movement of the coolant moving through the check bolt 1 can be adjusted.

On the other hand, when the pressure of the cooling water supplied through the supply pipe 30 is large, the rotational force of the disk arm 60 is increased, when the rotational force is applied to the elastic plate 90, the spring 91 installed on the elastic plate 90 This compresses the rotational force while being compressed to minimize the impact on the body (10).

As described above, the present invention buffers the rotational force of the disk arm generated by the cooling water, thereby preventing damage to the disk arm and the body, thereby extending the service life of the disk arm and of the cooling water moving through the check valve by adjusting the adjustment bolt. There is an effect that the amount of movement can be adjusted.

Claims (1)

In the check valve (1) is installed in the supply pipe (30) to move the cooling water and the disk arm (60) rotated in one direction inside the body (10) to prevent the cooling water flow back, the check valve ( 1) an insertion hole 70 formed at an upper side of the outlet side from which the coolant of the body 10 is discharged, and an adjustment bolt 80 screwed to the insertion hole 70 to adjust a rotation distance of the disc arm 60; Resilient installation by the spring 91 is fixedly coupled to the end of the adjustment bolt 80, disc arm for preventing damage to the check valve, characterized in that the configuration consisting of an elastic plate 90 to buffer the rotational force of the disk arm 60 rescue.