KR200297732Y1 - cool-hot water mixing tap with automatic shut-off device - Google Patents

Abstract

The present invention relates to an autistic cold-hot water mixing faucet, the purpose of which is provided with a rotatable cold-hot water conversion sleeve on the faucet body and as the piston of the valve unit is raised and lowered with an operating rod extending outward therein. By opening and closing, the mixing ratio between the cold water and the hot water is controlled by the rotation of the cold-hot water conversion sleeve, and is discharged only while the piston is lowered and raised to its original position, and the overall configuration of the valve is also extremely simple to facilitate manufacturing.

The present invention is a self-closing cold-hot water mixing faucet provided with a valve unit 20 that can adjust the mixing ratio of cold water and hot water, the valve unit 20 is by the nut 25 in the valve installation space (13) It is rotatably installed in a seated state and is formed in a hollow two-stage cylindrical shape having a valve seat 22a in the middle thereof, and cold / hot water inflow holes 22c and 22d are formed in the lower portion of the valve seat 22a. A cold-hot water switching sleeve 22 having an orifice groove 22e formed in the inner surface of the lower portion in the longitudinal direction and a discharge opening 22h formed in the upper portion of the valve seat 22a; A cold-hot water adjusting handle 23 fastened to the upper end of the cold-hot water switching sleeve 22; Piston 24 having a cap-shaped cross section installed up and down in the cold-hot water switching sleeve 22 and a packing 24a for airtightness with the inner surface of the cold-hot water switching sleeve 22 at the top and bottom of the outer surface. ); An actuating rod 26 installed to protrude upward through the cold-hot water switching sleeve 22 and the cold-hot water adjusting handle 23 in a state of being elastically supported by the spring 24c in the piston 24; It is characterized in that the operating button 26 is elastically installed on the top of the operating rod 26 extending through the cold-hot water conversion sleeve 22 to return it to its original position.

Description

Autistic cold-hot water mixing faucet {cool-hot water mixing tap with automatic shut-off device}

The present invention relates to an autistic cold-hot water mixing faucet, and more particularly, to an autistic cold-hot water mixing faucet which is capable of mixing cold water and hot water and is locked after a certain time by pressing and releasing an operation button.

In general, the self-closing faucet is automatically shut off after a certain period of time when water is continuously discharged while pressing the operation button to save water resources, and the external force applied to the operation button is removed.

Among the autistic faucets, the faucet that uses a combination of cold and hot water is a hot water and cold water discharge path on the lower surface of the piston cylinder combined with the lower end of the knob, as described in Korean Utility Model Publication No. 20-0255256. The depth of the symmetrical shape is gradually changed so that the mixing ratio between the hot water and the cold water can be adjusted according to the rotational direction of the knob. The piston is installed inside the piston cylinder, which is raised by hydraulic pressure to block the discharge port. -Prevent the discharge of cold water and press the knob to push down the push spindle at the bottom of the knob to open the piston valve installed in the center of the piston to release the operating water that pushed the piston upwards, the piston rises to open the discharge port to discharge the mixed water State and the hydraulic As the piston fills the bottom of the ton, the piston gradually rises due to water pressure, blocking the discharge port and shutting off automatically.

In the registered utility model publication configured as described above, there are many and complicated components of the configuration for adjusting the mixing ratio between hot water and cold water, and being opened and closed by piston cylinders, pistons, push spindles, piston valves, and return springs. Due to the complex organic coupling of the parts also has a problem that the manufacturing is difficult and the unit price is increased.

An object of the present invention is a research and development in order to solve the conventional problems as described above, the cold-hot water conversion sleeve is provided rotatably on the faucet body and the operating rod and the piston of the valve unit from the inside extending to the outside and The ratio of mixing with cold water and hot water is controlled by the rotation of the cold-hot water conversion sleeve and discharged only while the piston is lowered and raised to its original position by being opened and closed together.The overall configuration of the valve is also extremely simple. -To provide a hot water mixing faucet.

1 is a perspective view showing a autistic cold-hot water mixing faucet according to the present invention,

Figure 2 is a cross-sectional view of the autistic cold-hot water mixing faucet according to the present invention,

3 is a cross-sectional view taken along the line A-A of FIG.

4 is a cross-sectional view taken along line B-B of FIG. 2;

Figure 5 is a perspective view showing an extract of the cold-hot water conversion sleeve and the piston which is the main part of the present invention.

<Explanation of symbols for main parts of drawing>

10: faucet body 11a: cold water inlet hole

11b: hot water inlet 12a, 12b: chamber

13: Valve unit installation space 20: Valve unit

22: cold-hot water switching sleeve 22a: valve seat

22c: cold water inlet 22d: hot water inlet

22e: orifice groove 24: piston

24a: packing 24b: cap

26: Operation rod 28: Operation button

The self-closing cold-hot water mixing faucet of the present invention for achieving the object as described above, the faucet body having a chamber in communication with the cold water and hot water inlet hole on each side and having a valve unit installation space at the intersection of the chamber; A self-closing cold-hot water mixing faucet provided with a valve unit that is installed in the valve unit installation space of the faucet body to control the mixing ratio of cold water and hot water, wherein the valve unit is seated by a nut in the valve installation space. It is rotatably installed and formed into a hollow two-stage cylinder having a valve seat in the middle, and a cold / hot water inlet hole is formed in the lower part of the valve seat, and an orifice groove is formed in the inner surface of the lower part of the valve seat. Cold-hot water conversion sleeve formed in the upper discharge port; A cold-hot water adjusting handle fastened to the cold-hot water switching sleeve; A piston having a cap-shaped cross section installed up and down in the cold-hot water conversion sleeve and having a packing for maintaining airtightness with the inner surface of the cold-hot water conversion sleeve at the top / bottom of the outer surface; An actuating rod protruding upward through the cold-hot water switching sleeve and the cold-hot water adjusting handle while being elastically supported by a spring in the piston; At the top of the operating rod is characterized in that the spring is provided with a resilient operating button for returning it to its original position.

At the bottom of the valve unit installation space, a rotation limiting protrusion is formed to protrude, and a stepped portion is formed at the bottom of the cold-hot water conversion sleeve to rotate the cold-hot water conversion sleeve to both sides within a 45 ° range by the rotation limiting projection.

Hereinafter, the autistic cold-hot water mixing faucet of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view illustrating a autistic cold-hot water mixing faucet according to the present invention, Figures 2 to 4 is a cross-sectional view of the autistic cold-hot water mixing faucet according to the present invention, Figure 5 is a main part of the present invention This is a perspective view showing the cold-hot water conversion sleeve and the piston.

As shown in the figure, the faucet body 10 has chambers 12a and 12b communicating with cold water and hot water inflow holes 11a and 11b on both sides thereof, and valves are provided at the intersections of the chambers 12a and 12b. A unit installation space 13 is formed, flow paths 15a and 15b are formed in a partition wall between the chambers 12a and 12b and the valve unit installation space 13, and a cold-hot water switching sleeve 22 is formed in the upper front. The discharge pipe 16 through which the hop pool water that has passed through the valve seat 22a and the discharge port 22h of the () is extended.

The valve unit installation space 13 of the faucet body 10 is provided with a valve unit 20 for controlling the mixing ratio of cold water and hot water and controlling the discharge, the valve unit 20 is switched to cold water and hot water The cold-hot water conversion sleeve 22 mixing them, the cold-hot water control handle 23 fastened by the screw 23a to the upper end of this cold-hot water conversion sleeve 22, and the cold-hot water conversion sleeve 22 It consists of the piston 24 which raises and falls in the inside, and the operating rod 26 which lowers this piston 24.

The cold-hot water switching sleeve 22 is a hollow that is rotated while being supported by the nut 25 so that the airtightness is maintained by the two O-rings 22b in the valve installation space 13 of the faucet body 10. It is formed in a two-stage pipe shape, and the valve seat 22a is integrally formed on the middle inner surface, and cold / hot water inflow grooves 22c and 22d are formed in the lower portion of the valve seat 22a, and the length is formed on the inner surface thereof. The orifice groove 22e is formed in the direction. In addition, the packing 22g is installed at the upper end of the cold-hot water switching sleeve 22 by the push nut 22f to maintain the airtightness with the operation rod 26 passing upward, and the upper part of the valve seat 22a. A discharge port 22h through which cold-hot water mixed water is discharged is formed.

The piston 24 is installed in the lower portion of the valve seat 22a inside the cold-hot water switching sleeve 22 to be vertically elevated, and the piston 24 is formed in a hollow cap-shaped cross section, but is disposed on the upper and lower portions of the outer surface thereof. A packing 24a for airtightness with the inner surface of the cold-hot water switching sleeve 22 is installed, and a valve 24b for airtightness with the valve seat 22a is installed on the upper surface thereof, The cap 24e is fastened with the spring 24c installed. The upper end of the spring 24c in the piston 24 protrudes upward in a state in which the head of the lower end of the actuating rod 26 is elastically supported, and the upper surface of the actuating rod 26 is airtight with the piston 24. The packing 24d for holding | maintenance is mounted.

Under the valve seat 22a of the cold-hot water switching sleeve 22, an actuating rod 26 is seated and installed with the piston 24, and an upper part of the actuating rod 26 is a valve seat 22a, a packing 22g. And the press nut 22f. In addition, the operating button 26 is mounted on the upper end of the operating rod 26 in a state in which a spring 27 for retracting the operating rod 26 to its original position is interposed elastically.

The bottom of the valve unit installation space 13 is formed with a rotary limiting projection 14 protrudes, the lower end of the cold-hot water switching sleeve 22 is a cold-hot water switching sleeve 22 by the rotary limiting projection (14) Step (22g) is formed so as to rotate in the 45 ° range. The rotation limiting projection 14 and the stepped portion 22i select cold water and hot water as the cold-hot water conversion sleeve 22 is rotated in the valve unit installation space 13, and for adjusting the mixing ratio.

The autistic cold-hot water mixing faucet according to the present invention configured as described above is cold water and hot water pipes when the cold water and hot water inlet holes (11a, 11b) of the faucet body 10 is fastened to the cold water pipe and hot water pipe ends, respectively. And hot water flows into the chambers 12a and 12b in the faucet body 10, which is partitioned. At this time, the flow path (15a, 15b) formed on the wall between the chamber (12a, 12b) and the valve unit installation space 13 is selectively blocked by the outer surface of the cold-hot water switching sleeve 22 forming the valve unit 20 The valve seat 22a is blocked by the valve 24b on the upper end of the piston 24 provided inside the cold / hot water switching sleeve 22.

Rotating the cold-hot water adjusting handle 23 in this state causes the cold-hot water switching sleeve 22 to rotate, so that the flow paths 15a and 15b formed on the wall surface between the chambers 12a and 12b and the valve unit installation space 13. ), The cold / hot water inlet grooves 22c and 22d of the cold-hot water conversion sleeve 22 are partially or entirely matched, or either side is closed and blocked.

In this state, when the operation button 28 is pressed, the piston 24 starts to descend after the spring 24c in the piston 24 is pressed, and thus the piston 24 is lowered so that the upper portion of the piston 24 from the valve seat 22a. Since the valves 24b of the openings are spaced apart from each other, the cold water and / or the hot water in the chambers 12a and 12b are introduced into the inside through the cold / hot water inflow grooves 22c and 22d of the cold-hot water conversion sleeve 22 and then cold. It is discharged to the discharge pipe 16 of the faucet body 10 via the valve seat 22a of the hot water conversion sleeve 22, and the discharge port 22h.

As such, when the force (external force) applied to the operation button 28 is removed while the cold water and / or the hot water is discharged, the spring 24c in the piston 24 and the spring 27 under the operation button 28 are removed. Due to the elastic force, the force acting to push up the working rod 26 acts, but as the negative pressure formed in the cold-hot water conversion sleeve 22 is removed by inflow of air or cold / hot water through the orifice groove 22e of the inner surface thereof. It will rise slowly. At this time, the piston 24 installed on the lower end of the operating rod 26 is also raised.

In this way, while the piston 24 at the lower end of the operating rod 26 is raised, cold water and / or hot water are discharged for a predetermined time, and the piston 24 is fully raised so that the valve 24b at the upper end of the piston 24 is turned on the valve seat 22a. ), The discharge of cold water and / or hot water is blocked.

The discharge time of the cold water and / or the hot water is not only the size of the orifice groove 22e formed on the inner surface of the cold-hot water conversion sleeve 22 but also the spring 24c inside the piston 24 and the spring installed on the operation rod 26. It is determined by the elastic force of (27).

In other words, when the orifice groove 22e is large or the elastic force of the springs 24c and 27 is large, the supply of air or water is easy, so that the discharge time is short, and the orifice groove 22e is small or the elastic force of the springs 24c and 27 is reduced. The smaller it is, the slower the air or water supply, and the longer the discharge time.

Therefore, it takes about 8 seconds to simply wash the face in the public toilet and about 25-30 seconds when washing the face in the shower room of the lodging facility. You can make as many adjustments as you need.

As discussed above, the autistic cold-hot water mixing faucet of the present invention is rotatably provided with a cold-hot water conversion sleeve on the faucet body, and as the piston of the valve unit is lifted with an operating rod extending outward therein. By opening and closing, the mixing ratio between the cold water and the hot water is controlled by the rotation of the cold-hot water conversion sleeve, and is discharged only while the piston is lowered and raised to the original position, and the overall configuration of the valve is also extremely simple, thereby making it easy to manufacture.

Claims (2)

Faucet body (10) having chambers (12a, 12b) communicating with cold water and hot water inlet (11a, 11b), respectively, and having valve unit installation spaces (13) at the intersections of the chambers (12a, 12b) on both sides. ; In the self-closing cold-hot water mixing faucet provided with a valve unit 20 installed in the valve unit installation space 13 of the faucet body 10 to adjust the mixing ratio of cold water and hot water, The valve unit 20 is rotatably installed in the valve installation space 13 by the nut 25 and is formed in a hollow two-stage cylindrical shape having a valve seat 22a in the middle thereof, and the valve seat Cold / hot water inflow holes 22c and 22d are formed in the lower part of 22a, and the orifice groove 22e is formed in the inner surface of the lower part in the longitudinal direction, and the cold discharge port 22h is formed in the upper part of the valve seat 22a. A hot water sleeve 22; A cold-hot water adjusting handle 23 fastened to the upper end of the cold-hot water switching sleeve 22; Piston 24 having a cap-shaped cross section installed up and down in the cold-hot water switching sleeve 22 and a packing 24a for airtightness with the inner surface of the cold-hot water switching sleeve 22 at the top and bottom of the outer surface. ); An actuating rod 26 installed to protrude upward through the cold-hot water switching sleeve 22 and the cold-hot water adjusting handle 23 in a state of being elastically supported by the spring 24c in the piston 24; Autistic cold-hot water, characterized in that the operating button 26 is provided with a spring (27) for elastically installed on the upper end of the operating rod 26 extending through the cold-hot water conversion sleeve 22 is returned to its original position. Mixing faucet. The method of claim 1, wherein the rotary limiting projection 14 is formed at the bottom of the valve unit installation space 13, and the cold-hot water switching is performed by the rotary limiting projection 14 at the lower end of the cold-hot water conversion sleeve 22. Autistic cold-hot water mixing faucet, characterized in that the step (22i) is formed to rotate the sleeve (22) to both sides in the range of 45 °.