KR20040101702A - Propeller type water meter having check valve for prevention backward flowing and control water supple - Google Patents

Abstract

PURPOSE: A watermeter having a counter flow restricting check valve and a water supply control valve is provided to measure the water amount accurately by preventing the blade from reversing, to regulate water supply to the meter body, and to reduce the installation cost by integrally mounting the check valve and the water supply control valve. CONSTITUTION: An inlet pipe(11) and an outlet pipe(12) are arranged at both sides of a meter body(10), and a blade member is rotated according to water stream to operate the metering parts. An axial head part is formed in the outlet of the watermeter body, and a counter flow restricting check valve(14) is installed in the axial head part to automatically open and close the outlet according to the direction of water stream. A water supply control valve(30) is installed in the inlet pipe, and composed of a control pipe part(31) communicated with the meter body and composed of a hollow(32) and a hollow screw part(32a), an adjusting unit(33) combined with the hollow screw part and composed of a drive groove and a sealing lid(35) detachably combined with the sealing screw part to prevent leak of water. A stop ring(36) is installed in the upper part of the control pipe part to prevent displacement of the adjusting unit.

Description

Propeller type water meter with integrated check valve for preventing backflow and control valve for water supply control {PROPELLER TYPE WATER METER HAVING CHECK VALVE FOR PREVENTION BACKWARD FLOWING AND CONTROL WATER SUPPLE}

The present invention relates to a vane type water meter equipped with a check valve for preventing backflow and a control valve for water supply control, and more specifically, a check valve for preventing backflow and a control valve for controlling the supply of water to the meter body. This prevents reverse rotation of the vane member due to the reverse flow of water so that more accurate measurement can be performed, while controlling the supply of water to the inside of the main body of the meter, as well as simplifying the installation of the water meter. The present invention relates to a vane type water meter equipped with a non-return check valve and a water supply control valve that can reduce the cost.

As is well known, the water meters installed and used so far have not been provided with a structural device for preventing backflow and dipping inside the meter. Therefore, due to natural backflow or artificial backflow of the tap water, the vane member is reversed, and each measuring part linked with the vane member is also reversed, so that the meter does not measure accurately, such as being turned upside down. In addition, the service life of the meter is shortened due to excessive reverse rotation, and the water meter is installed in the opposite direction in various businesses or factories that use a lot of tap water by exploiting the problems of the existing water meter. It was a serious social problem even when deliberately drunk a large amount of water.

And, as shown in the Republic of Korea Patent Application No. 2001-6867, as shown in Figure 2 there is a check valve 6 for preventing the backflow between the water meter 5 and the angle valve 7 for the meter, the conventional backflow prevention Since the check valve 6 has to be separately installed in the pipeline (not shown) between the water meter 5 and the angle valve 7 for the meter, the installation work is very cumbersome, and consequently the construction cost and the manufacturing cost accordingly. Not only does this increase, but it also takes up a lot of installation space.

Therefore, the present applicant has applied for a water meter (Korean Utility Model Registration No. 250396) in which the check valve for preventing the back flow is integrally installed, and the configuration thereof will be described in detail with reference to FIG. 1 on both sides of the water meter main body 1. The inlet pipe 2 and the discharge pipe 3 are opposed to each other, and the inside of the main body 1 is provided with a vane member (not shown) rotated by water flow and measurement components interlocked by the rotation of the vane member. In the vane-type water meter configured to measure the amount of water used, the water intake part 5 is formed on one side of the discharge inlet 4 of the water meter main body 1 in which the inflow pipe 2 and the discharge pipe 3 are opposed to each other. In this case, the opening / closing check valve 6 is constructed so that the discharge inlet 4 is automatically opened and closed by the check valve 6 according to the flow direction of the tap water.

In other words, in the normal water flow state in which tap water flows into the inflow pipe 2 and is discharged through the discharge pipe 3 through the discharge inlet 4 while rotating the vane member forward, the check valve 6 has its shaft 6a. Rotate around the center to maintain a state in which the discharge inlet (4) is open, so that smooth measurement operation is made without inhibiting the water flow. In other words, it prevents the reverse rotation of each of the measurement components interlocked with the vane member 7 to prevent the meter from turning upside down.

However, the conventional water meter configured as described above means for discharging the water or air inside the meter body 1 to the outside, or adjusting the amount of water flowing into the meter body 1 from the inlet pipe 2. There is a problem such that the water meter malfunctions due to the excessive supply of air or water inside the meter body (1).

Therefore, the present invention has been researched and developed in consideration of the above problems, by preventing the reverse rotation of the vane member due to the reverse flow of water by integrally forming a check valve to prevent the reverse flow in the meter body and a control valve to control the supply of water Backflow prevention check valve to control water supply to the inside of the main body of the meter, simplify the installation of the water meter, and reduce the cost of installing the water meter. It is an object of the present invention to provide a vane type water meter equipped with a control valve for water supply control.

1 is an exploded perspective view of a part of the water meter according to the prior art,

2 is another embodiment according to the prior art,

3 is an exploded perspective view of a part of the water meter according to the present invention;

4 is a sectional view of the water meter according to the present invention;

5 is a cross-sectional view showing an operating state of the water meter according to the present invention;

Figure 6 is a cross-sectional view showing an excerpt of the adjustment of the water meter according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: The meter body 11: inflow pipe

12: discharge pipe 12a: discharge inlet

13: Bearing part 14: Check valve for preventing backflow

20: vane member 30: control valve for water supply control

31: control pipe 32: hollow

33: Adjustment hole 33a: Screw part

33b: drive groove 33c: ring groove

33d: Sealing 33e: Seal wing

34: discharge hole 35: airtight lid

36: Stop ring

The present invention for achieving the above object is the inlet pipe and the discharge pipe on both sides of the water meter main body is opposed to each other, the inside of the meter body and the rotor member rotated by water flow, interlocked by the rotation of the vane member Measuring parts are installed, the inlet pipe and the discharge pipe is opposed to the water inlet of the water meter main body is formed on the one side of the discharge inlet, and the check valve for preventing the backflow prevents the discharge inlet in accordance with the flow direction of the tap water A water meter configured to be opened and closed automatically by a check valve, the water inlet pipe is in communication with the inside of the meter body in place of the control pipe portion is provided with a screw on the top and the inside, respectively; An adjustment tool provided with a drive groove which is coupled to a screw located in the control tube and rotates at one end thereof; It is fastened to the screw portion located on the upper end of the control tube part is a sealing lid for preventing the leakage of water to the control tube part; characterized in that it comprises a control valve for water supply control consisting of.

In addition, the present invention is characterized in that the discharge hole communicating with the hollow inside of the control tube portion formed in the right angle.

The present invention is also provided with a stop ring to prevent the adjustment mechanism from being separated into the hollow inside the upper end of the control tube, the discharge hole is located at the lower end of the adjustment sphere when the adjustment sphere is in contact with the stop ring without interference of the adjustment sphere Characterized in that the discharge hole to facilitate the discharge of water or air.

In addition, the present invention is characterized in that the ring groove is formed in the adjusting tool, and then the sealing is installed in the ring groove.

The present invention is also characterized in that at least one seal wing is formed on the outer circumference of the adjusting tool.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a partially exploded perspective view of the water meter according to the present invention, Figure 4 is a cross-sectional view of the water meter according to the present invention.

An inlet pipe 11 and an outlet pipe 12 are opposed to each other on both sides of the meter body 10, and the vane member 20 is rotated by the flow of water in the inside of the meter body 10 to operate the measurement component thereon. ), And a water storage part 13 is formed at one side of the discharge inlet 12a of the meter body 10 in which the inflow pipe 11 and the discharge pipe 12 are opposed to each other, and the backflow prevention is prevented in the water storage part 13. In the water meter configured to expand the check valve 14 so that the discharge inlet 12a is automatically opened and closed by the check valve 14 in accordance with the flow direction of the tap water.

The control valve 30 for water supply control is installed in place of the inlet pipe 11. First, the control pipe part 31 having the hollow 32 in communication with the inside of the meter body 10 in the inlet pipe 11. Bulge a predetermined height, and then forming a hollow screw portion (32a) on the inner lower end of the hollow 32, and forming a closed screw portion (31a) on the outside of the upper end of the control tube portion 31, the control tube portion 31 On one side of the) to form a discharge hole 34 communicating with the hollow 32 therein at right angles.

Then, the adjusting hole 33 is fastened to the hollow screw portion 32a, the adjusting hole 33 is formed on the outer peripheral portion of the screw portion 33a corresponding to the hollow screw portion 32a, the adjusting hole 33 At the top of the drive grooves 33b are formed to rotate them, respectively. At this time, when the adjusting hole 33 is raised above the hollow 32, the discharge hole 34 on one side of the control pipe part 31 is positioned at the lower end of the adjusting hole 33 so that water or air inside the main body of the meter 10 may be located. By allowing the discharge through the discharge hole 34 to prevent the water is injected directly to the worker.

Meanwhile, a ring groove 33c is formed on the outer circumference of the upper end of the adjusting hole 33, and then a sealing 33d is installed in the ring groove 33c to maintain the sealing 33d in close contact with the hollow 32. By doing so, when the adjuster 33 is raised above the hollow 32, water is discharged through the hollow 32, not the discharge hole 34 to prevent the worker from being contaminated. In this case, as shown in FIG. 6, one or two seal wings 33e may be formed on the outer circumferential edge of the adjusting tool 33 instead of the sealing 33d.

In addition, the sealing lid 35 is detachably installed on the sealing screw part 31a positioned at the upper end of the control pipe part 31 to prevent water leakage to the control pipe part 31.

In addition, the stopper 36 is installed by the stop ring 36 by installing a stop ring 36 that can prevent the fitting hole 33 from being separated into the hollow 32 inside the upper end of the control pipe part 31. It prevents the departure from the hollow 32.

Referring to the action / effect of the water meter configured as described above in detail as follows.

Water is supplied through the inlet pipe 11 of the meter body 10 in the state where the water meter is installed. At this time, the amount of water flowing into the inside of the meter body 10 or the air remaining inside the meter body 10 is maintained. When it is to be discharged to operate the control valve 30 for water supply control of one side of the inlet pipe 11 as shown in FIG.

First, the sealing lid 35 located at the top of the control tube portion 31 of the control valve 30 for water supply control is separated from the sealing screw portion 31a, and then coupled to the hollow 32 of the control tube portion 31. By inserting the drive tool in the drive groove 33b of the adjusting hole 33 and rotating in one direction, the screw 33a of the adjusting hole 33 is separated from the hollow screw part 32a, wherein the adjusting hole 33 is the meter body 10 By the pressure of the water in the inside is pushed upwards of the hollow 32 and at the same time caught by the stop ring 36 of the upper end of the hollow 32 can prevent the adjustment opening 33 to escape above the hollow (32). have. In addition, the adjusting hole 33 is provided with a sealing 33d to maintain a state of being in close contact with the hollow 32, so that when the adjusting hole 33 rises above the hollow 32, the hollow is not a discharge hole 34. The water 32 can be prevented from being discharged.

In addition, the same effect as described above may be obtained by forming one or two seal wings 33e on the outer circumferential edge of the adjusting tool 33 instead of the sealing 33d as shown in FIG. 6.

On the other hand, the water flowing into the meter body 10 is discharged through the discharge pipe 12 through the discharge inlet 12a while rotating the vane member 20 forward as shown in Figure 6, at this time check valve in the normal flow state (14) is rotated about its axis to maintain the discharge inlet (12a) in the open state is to perform a smooth measurement operation without inhibiting the water flow. That is, it prevents the reverse rotation of each measurement component interlocked with the vane member 20 to prevent the meter from turning upside down.

Therefore, the present invention prevents the reverse rotation of the vane member 20 due to the back flow of water by integrally forming the check valve 14 to prevent the back flow and the control valve 30 to control the supply of water in the meter body (10) This enables a more accurate measurement and at the same time controls the supply of water to the inside of the meter body 10, as well as simplifying the installation of the water meter and at the same time greatly reducing the cost of installing the water meter. It has a useful effect.

In addition, the present invention is formed when the discharge hole 34 communicating with the hollow 32 therein is formed at right angles on the upper end side of the control tube part 31 to raise the adjusting mechanism 33 above the hollow 32. The discharge hole 34 on one side of the control pipe part 31 is positioned at the lower end of the adjusting hole 33 so that water or air inside the meter body 10 is discharged through the discharge hole 34 so that water is directly injected to the worker. There is a very useful effect that prevents it.

Claims (5)

Inlet and discharge pipes are opposed to each other on both sides of the water meter main body, and a vane member rotated by water flow is installed inside the meter main body, and measurement components interlocked by rotation of the vane member are installed. A water meter is formed on one side of the discharge inlet of the main body of the water meter in which the discharge pipe is opposed, and a check valve for preventing backflow is installed in the water reservoir to automatically open and close the discharge inlet according to the flow direction of the tap water. In A control tube portion having a threaded portion in upper and inner portions thereof while communicating with the inside of the meter body in place of the inflow pipe; An adjustment tool provided with a drive groove which is coupled to a screw located in the control tube and rotates at one end thereof; A check valve for preventing water supply and a control valve for water supply control are integrally provided with a control valve for water supply that is fastened to a screw cap disposed at an upper end of the control tube to prevent leakage of water to the control pipe. Mounted water meter. The method of claim 1, A vane type water meter having a check valve for preventing a back flow and a control valve for water supply control integrally formed at an upper end of the control tube at a right angle with a discharge hole communicating with a hollow inside thereof. The method of claim 2, Install a stop ring to prevent the adjustment sphere from being separated into the hollow inside the upper end of the control tube, when the control sphere is in contact with the stop ring so that the discharge hole is located at the bottom of the adjustment sphere without water or air into the discharge hole without interference of the adjustment sphere A vane type water meter equipped with a check valve for preventing backflow and a control valve for water supply control, characterized in that the discharge of the water is easy. The method of claim 2, After forming a ring groove in the adjustment sphere, the air-tight type water meter is integrally equipped with a check valve for preventing the back flow and a control valve for water supply control characterized in that the sealing groove is installed in the ring groove. The method of claim 2, At least one seal wing is formed on the outer circumference of the adjustment mechanism, a vane type water meter equipped with a check valve for preventing backflow and a control valve for water supply control.