WO2010071316A2

WO2010071316A2 - Water-saving valve apparatus

Info

Publication number: WO2010071316A2
Application number: PCT/KR2009/007334
Authority: WO
Inventors: 정호영
Original assignee: Jeong Ho Yeong
Priority date: 2008-12-16
Filing date: 2009-12-09
Publication date: 2010-06-24
Also published as: WO2010071316A3; US20100148104A1; KR100891878B1

Abstract

The present invention relates to a water-saving valve apparatus, and more particularly, to a water-saving valve apparatus installed between a water pipe and a shower head to be manually opened/shut when needed to control the flow of water discharged from the shower head, thereby saving water. The water-saving valve apparatus according to the present invention comprises: a valve body having a water supply unit, a discharge unit, and a straight pipe; a connection member having a joint plate coupled beneath the valve body, and a tube arranged beneath the joint plate; a spring and an actuating rod inserted into the tube; a press plate and a packing, which are brought into contact with the actuating rod to move in a vertical direction; and a manual operation unit joined beneath the connection member to manually move the actuating rod in the vertical direction. The manual operation unit includes: a lower body which is joined beneath the connection member, and which has an open top with an internal space, and a lower portion with a vertical tube; a slide bar, the top of which is provided with a magnet, is inserted into the vertical tube to slide in the vertical direction, and thus move the actuating rod in the tube of the connection member in the vertical direction by means of magnetic force; a spring fitted to the outer circumference of the lower portion of the slide bar to elastically support the slide bar in the vertical tube; and a locking piece the upper end of which is caught alternately by a first locking groove and a second locking groove formed up and down on the outer circumference of the slide bar, and the lower end of which is caught at the outer circumference of the vertical tube during the sliding of the slide bar, to thereby lock and support the slide bar alternately at the height at which the magnetic force of the slide bar affects the actuating rod and at the height at which the magnetic force of the slide bar does not affect the actuating rod.

Description

Water-saving valve device

The present invention relates to a water-saving valve device, and more particularly, is installed in the middle of the water pipe and the shower head to open and close manually if necessary, water-saving type configured to save water by intermittent water discharged from the shower head It relates to a valve device.

In general, there are shower facilities in the home bathroom, public bath, swimming pool, and the like. The shower is installed in the shower, the shower is composed of a water pipe connected to the water supply pipe and the shower head to discharge the water supplied through the water pipe, the water pipe is coupled to the valve or faucet for supplying and blocking the water.

As water shortages occur all over the world, efforts are being actively made to save water. As an example, recently, many water-saving showers have been installed in showers provided in homes, public baths, saunas, and swimming pools. The water-saving shower means that the user is configured to automatically cut off the water supply when a certain time elapses during the shower or when a human body is not detected for a certain time at a specific location. To this end, in addition to the main valve, a separate intermediate valve device is installed between the water pipe and the shower head in addition to the main valve, and a timer or a human body sensor is attached to the water-saving shower to save water as the valve is opened and closed under specific conditions. .

Solenoid valve is mainly used as the intermediate valve device. The solenoid valve uses an electromagnet, and automatically opens and closes the valve by using a phenomenon in which the conductor is moved by a magnetic field formed by winding a coil on the surface of the conductor and flowing a current.

1 is an exploded perspective view of a conventional solenoid valve.

As shown, the solenoid valve has a hollow portion therein and a valve body 10 having a water supply part 12 and a discharge part 14 formed at one side and the other side, respectively, and at the lower end of the valve body 10. A solenoid 42 actuated by a signal is installed, and an upper end portion of the valve body 10 is provided with a coupling portion 48 having an actuating lever for manually raising and lowering. Between the valve body 10 and the solenoid 42 is fitted a connecting member 34 having a coupling plate 36 and the tube 38.

At this time, the tube 38 is inserted between the coil 44 installed on the inner circumferential surface of the solenoid 42, the coupling plate 36 is seated on the upper portion of the solenoid 42, such as the valve body 10 and the bolt It is coupled to the fastening means.

On the other hand, the inside of the tube 38 is inserted into the spring 32 and the operating rod 30 in sequence, the pressing plate (40) formed in the upper surface of the coupling plate 36, the pressing plate having a circular shape (26) ) Is inserted into the building. One side of the pressing plate 26 has a hole formed in the fine hole 28, the upper and lower portions of the projections (25, 27) has a configuration formed, the end surface of the projection 27 is the operating rod described above Contact with (30). That is, the pressing plate 26 also moves up and down by contacting the protrusions 27 of the pressing plate 26 to operate the up and down operating rod 30.

On the other hand, the packing 20 formed of a synthetic resin material is seated on the upper surface of the pressing plate 26.

That is, the protrusions 20 of the pressing plate 26 are inserted into and fixed to the through holes formed in the center of the packing 20 so that the packing 20 is seated and fixed to the upper surface of the pressing plate 26.

In addition, a plurality of micro holes 24 are formed at the edge surface of the packing 20, and the upper outer circumferential surface of the packing 20 configured as described above is inserted and fixed in the recess groove 18 formed in the valve body 10. do. On the other hand, in the inner center of the valve body 10, a vertical tube 16 is formed integrally in communication with the water supply unit 12 described above, one side, the above-described packing 20 to the bottom surface of the vertical tube 16 ) Will come into contact. On the other hand, the upper surface of the valve body 10 is coupled to the coupling portion 48 having a hollow portion therein, the operating lever is coupled to the upper center of the coupling portion 48 to move up and down.

Hereinafter, the operation state of the conventional solenoid valve configured as described above with reference to Figures 2 and 3 as follows.

2 is a view showing a state in which the valve is closed because no current is supplied to the coil 44 of the solenoid. Referring to the drawings, the operation rod 30 in the tubular 38 rises to the elasticity of the spring 32 to push the pressing plate 26 to support the packing 20 seated on the pressing plate 26. ) Is in contact with the lower end of the vertical tube 16 to keep the valve closed.

Meanwhile, FIG. 3 is a view illustrating an open state of a valve. Referring to the drawing, when a current is supplied to the coil 44 according to an operation of a sensor or a switch, the operating rod 30 is magnetized and lowered downward. At the same time, the pressing plate 26 seated on the operating rod 30 is also lowered. Since the packing 20 supported on the pressing plate 26 is desorbed by the pressure of the water flowing into the vertical pipe 16, the water moves to the discharge part 14 through the vertical pipe 16.

That is, the valve maintains an open state as described above to supply water smoothly.

In addition, when the valve is closed, when the current supplied to the coil 44 in the solenoid 42 is interrupted, the operating rod 30 loses the magnetization force and rises to the elasticity of the spring 32. The pressing plate 26 is also raised to support the packing 20 so that the packing 20 is in contact with the vertical tube 16 again to block the supply of water, thereby maintaining the valve closed.

This conventional water-saving valve device is very convenient in that the supply of water is automatically cut off, but because of the use of the solenoid often malfunction occurs in the switching operation according to the electrical signal,

In addition, there is a disadvantage that the volume is limited to the installation, the production cost is very high, and the maintenance cost due to the use of power is very high.

In addition, if a problem occurs in the power supply, such as exhaustion of the battery for current supply, there is also a risk that the leakage can continue indefinitely.

The present invention was devised to solve the problems of the water-saving valve device using the conventional solenoid as described above, by preventing the operation by the electrical signal by moving the operating rod up and down manually without using the solenoid, The purpose of the present invention is to provide a water-saving valve device that can reduce production costs and maintenance costs, can be easily installed due to its small volume, and can prevent leakage due to power interruption.

The objects and advantages of the present invention will be described in more detail below, and will be further embodied by the examples. Furthermore, the objects and advantages of the invention are realized by the means indicated in the claims and combinations thereof.

The water-saving valve device according to the present invention for achieving the above object, the valve body including a water supply and discharge portion and the vertical pipe;

A connection member comprising a coupling plate coupled to the lower side of the valve body and a pipe body formed below the coupling plate;

A spring and an operating rod inserted into the tube; In a conventional water-saving valve device including a pressing plate and a packing moving in contact with the operating rod up and down, a manual operation unit for manually swinging the operating rod is coupled to the lower side of the connecting member,

The manual operation unit: the lower body is coupled to the lower side of the connection member, the upper side is opened and a space is formed therein, the lower body is formed with a vertical tube;

A slide bar which is provided with a magnet at an upper end thereof and moves up and down by a magnetic force an operating rod accommodated in the tube body of the connection member as the magnet is slidably moved up and down in the state inserted into the vertical tube body;

A spring fitted to the lower outer circumference of the slide bar to elastically support the slide bar in a vertical tube; When the slide bar is raised and lowered, the upper end is alternately supported by the first catching groove and the second catching groove formed side by side up and down the outer circumferential surface of the slide bar, and as the lower end is supported by the outer circumferential surface of the vertical tubular body, the slide bar is supported. It includes a locking piece that is alternately fixed to the height of the magnetic force applied to the operating rod and does not reach.

Here, the guide groove for guiding the movement of the upper end of the locking piece is formed between the first locking groove and the second locking groove,

The guide groove may include a first upward guide part for guiding the locking piece upwardly inclined from the first locking groove, a first downward guide part for guiding downwardly downward from the end of the first upward guide part toward the second locking groove;

It is preferable to include a second upward guide portion guides upwardly inclined from the second catching groove, and a second downward guide portion guides downwardly inclined toward the first catching groove from the end of the second upward guide portion.

And, it is preferable that the separation preventing ring is fitted to the outside of the locking piece so that the locking piece is not separated from the vertical tube.

In addition, one side of the upper outer peripheral surface of the vertical tube of the lower body is provided with a through groove extending in the horizontal direction so that the upper end of the engaging piece is moved along the guide groove formed on the outer surface of the slide-by passing through the through groove,

The lower end of the engaging piece is preferably pivotally fitted to the pivot shaft groove formed on the outer peripheral surface of the lower vertical tube of the lower body.

In addition, it is preferable that a fan-shaped groove is provided below the through-groove of the vertical tube to provide the left and right turning spaces of the locking pieces and become narrower toward the lower side.

On the other hand, the lower end of the slide bar is preferably gripper is coupled to facilitate the gripping when the slide bar is moved up and down manually.

In addition, the water-saving valve device is preferably installed between the water pipe and the shower head.

According to the present invention as described above, by manually moving the operating rod up and down without using a solenoid, it is possible to prevent malfunction by the electrical signal, to reduce the production cost and maintenance costs, easy to install small volume And it has an excellent effect to prevent leakage due to power cut or instability.

1 is an exploded perspective view of a conventional conventional solenoid valve,

Figure 2 is a view showing a state in which the valve is closed because no current is supplied to the solenoid coil 44 of the conventional solenoid valve,

3 is a view illustrating a state in which a valve is opened by supplying current to a solenoid coil of a conventional solenoid valve;

4 is a view showing a water-saving valve device installed between the water pipe and the shower head according to the present invention;

5 is an exploded perspective view of the water-saving valve device according to the present invention;

6 is an open front outer view of the water-saving valve device according to the present invention;

7 is a cross-sectional view of the first open state of the water-saving valve device according to the present invention;

8 is an operating state after the slide bar is pulled once from the bottom and released from the water-saving valve device according to the present invention;

9 is a cross-sectional view of a state in which the valve device is closed by pulling the slide bar once and releasing the pull in the water-saving valve device according to the present invention as shown in FIG. 8;

10 is an operational state diagram after pulling the slide bar once again in the state of FIG. 9 and releasing the pull;

Explanation of symbols on the main parts of the drawings

100: manual operation unit 110: lower body

112: space 114: vertical tube

116: through groove 118: fan groove

119: pivot shaft groove 120: slide bar

122: magnet 124: first locking groove

126: second locking groove 128: guide groove

129: hanger groove 130: spring

200: grip

Hereinafter, the configuration of a water-saving valve device according to the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

Figure 4 shows a water-saving valve device is installed in the shower according to the invention,

5 is an exploded perspective view of the water-saving valve device according to the present invention.

As shown in FIG. 4, the water-saving valve device according to the present invention is provided between the water pipe 50 connected to the water supply pipe and the shower head 60 to temporarily supply water to the shower head 60 as necessary. As shown, it is preferred that the outside is surrounded by a separate casing.

On the other hand, the water-saving valve device according to the present invention is the valve body 10, the pressing plate 26, the packing 20, the connecting member 34, the operating rod in the same way as the upper configuration of the conventional solenoid valve described above in detail It includes all the configuration except the solenoid 42, such as the lower (30), and instead of the solenoid is provided with a manual operation unit 100 for manually moving the operating rod 30.

Therefore, since the upper configuration including the valve body 10 has already been described in the prior art, a detailed description thereof will be omitted.

Hereinafter, the manual operation unit 100 for manually moving the operating rod 30 will be described in detail.

As shown in Figure 5, the manual operation portion 100 of the water-saving valve device according to the present invention is the lower body 110, the slide bar 120, the spring 130, the engaging piece 140, the separation prevention ring ( 150).

Lower body 110 is a portion that is fastened and coupled to the lower portion of the connecting member 34 by a bolt or the like, the upper side is opened and the inside of the tubular body 38 of the connecting member 34 and the slide bar 120 to be described later A predetermined space portion 112 is formed to accommodate the front end portion, and the lower side is composed of a vertical tube 114 into which a slide bar 120 to be described later is inserted to be slidably movable.

On one side of the outer peripheral surface of the vertical body 114 of the lower body 110 is formed a rectangular through-groove 116 extending relatively long in the horizontal direction, the fan-shaped groove that becomes narrower downwards under the rectangular through-hole 116 118 is formed.

The fan-shaped groove 118 is set to both sides of the width of the locking piece 140 to be described later turning, and provides a left and right turning space of the locking piece 140, the bottom end of the fan-shaped groove 118 The pivot shaft groove 119 to which one end of the locking piece 140 is pivotally fitted is formed. The engaging and pivoting operation of the locking piece 140 will be described later.

Slide bar 120 is provided with a magnet 122 at the top end is inserted into the vertical tube 114 of the lower body 110, the sliding body moves in the vertical direction as the tube 38 of the connecting member 34 The operating rod 30 accommodated therein) is a part of lifting up and down by a magnetic force.

There is no particular limitation on the shape of the slide bar 120, but as shown in Figure 5, the upper portion is formed in a generally cylindrical shape, the lower portion is formed of a rod shape smaller than the upper diameter to form a step between the upper and lower It is desirable to be.

On the outer circumferential surface of one side of the slide bar 120, more specifically, the upper outer circumferential surface of the slide bar 120 having a cylindrical shape is formed with a first catching groove 124 and a second catching groove 126. A guide groove 128 is formed between the groove 124 and the second locking groove 126 to guide the movement of the locking piece 140. The first locking groove 124 and the second locking groove 126 are formed side by side up and down on one side of the outer circumferential surface of the slide bar 120, the guide groove 128, the locking piece 140 is the first locking groove Provide a movement path between the 124 and the second locking groove 126,

As shown in FIG. 5, a first upward guide portion 128a for guiding the locking piece 140 upwardly inclined from the first catching groove 124 and the second upward guide portion 128a from the end of the first upward guide portion 128a. A first downward guide portion 128b guiding downwardly inclined toward the locking groove 126, a second upward guide portion 128c guiding upwardly obliquely from the second locking groove 126, and a second upward guide; It includes a second downward guide portion (128d) for guiding downward from the end of the portion (128c) inclined downward toward the first locking groove 124. Accordingly, the guide groove 128 is generally formed in the shape of a heart (♡).

Operation of the locking piece 140 which is moved along the first locking groove 124 and the second locking groove 126 and the guide groove 128 will be described later.

The slide bar 120 is slidably moved up and down in the vertical tube 114 of the lower body 110. To this end, a spring 130 is inserted into the lower outer periphery of the slide bar 120 to elastically support the slide bar 120 in the vertical tube 114.

As already mentioned, the slide bar 120 is inserted into the lower vertical tube 114 of the lower body 110, the lower portion of the slide bar 120 is formed smaller than the upper diameter to the boundary between the upper and lower A step is formed.

The spring 130 is fitted to the lower outer periphery formed smaller than the upper diameter so that one end is supported on the step.

Meanwhile, a through hole (not shown) corresponding to the diameter of the lower end of the slide bar 120 is formed at the lower end of the vertical tube 114 of the lower body 110, and thus, the lower portion of the slide bar 120. A locking jaw is formed around the end through hole so that the other end of the spring 130 can be supported.

Through this configuration, in the state in which the slide bar 120 is fitted to the vertical tube 114 of the lower body 110, by holding the lower end of the slide bar 120 protruding through the through hole to pull the spring ( As the 130 is contracted, the slide bar 120 is moved downward, and when the pulling force is released, the slide bar 120 is moved upward again by the restoring force of the spring 130.

On the other hand, the lower end portion of the slide bar 120 is preferably formed in the outer peripheral surface is formed into a hexagonal shape so as not to rotate in the state fitted to the vertical pipe 114, accordingly, the lower end portion of the slide bar 120 It is preferable that the through-hole to be penetrated is also processed into a hexagonal shape.

In addition, a hook groove 129 is provided at the lower end of the slide bar 120 to facilitate gripping and pulling of the slide bar 120.

The hanger 129 is preferably coupled to a gripping tool 200 such as a string, wire, or ring, stick, etc. as shown in FIG. Accordingly, the user can manually operate the opening and closing of the valve by holding the string or wire and then releasing the pulling or pulling force.

As described above, in order to raise and lower the operating rod 30 by the vertical movement of the slide bar 120, when the slide bar 120 is lowered, the slide bar 120 so that magnetic force is not applied to the operating rod 30. Between the magnet 122 provided at the tip of the tube and the tubular body in which the operating rod 30 is accommodated must be kept at a predetermined interval, and when the slide bar 120 is raised, the slide bar so as to exert a magnetic force on the operating rod 30. The magnet 122 provided at the tip of the 120 should be in close contact with the bottom face of the tube 38. As such, the gap adjustment between the slide bar 120 and the tube 38 is performed by the locking piece 140.

The locking piece 140 restricts the rise of the slide bar 120 by the force of the spring 130 fitted to the lower outer periphery of the slide bar 120, the magnetic force of the slide bar 120 to the operating rod 30 As a member for alternately fixed support to the height and the height does not reach, the upper end and the lower end are bent in the same direction as the 'c' shape, and the bent lower end is the lower side of the lower body 110 It is pivotally fitted into the pivot shaft groove 119 formed on the outer circumferential surface of the vertical tube 114, the bent upper end is moved along the guide groove 128, the first locking groove 124 and the second locking groove 126 Hanged on to be supported.

When the upper end of the catching piece 140 is caught by the first catching groove 124 located at the lower side, the tip of the slide bar 120 is in close contact with the bottom surface of the tubular body 38, and the upper part of the catching piece 140 is provided. When the end is caught by the second locking groove 126 located on the upper side, the tip of the slide bar 120 is spaced apart from the tube 38 by a predetermined interval. Specific operation relationship will be described later.

On the other hand, the outer circumferential surface of the vertical tube body 114 of the lower body 110, preferably the outer side of the locking piece 140, the separation preventing ring 150 is prevented from being separated from the vertical tube body 114 Is fitted.

So far, each component of the water-saving valve device according to the present invention has been described. Hereinafter, the operation relationship of the intermediate valve including these components will be described in detail.

5 to 10 sequentially show the operating state of the engaging piece 140 and the slide bar 120 while the user repeatedly repeats the operation of pulling or releasing the slide bar 120 from below.

First, as shown in FIG. 6, when the bent upper end of the first locking piece 140 is caught by the first locking groove 124, the slide bar 120 is pressed upward by the force of the spring 130. The portion of the magnet 122 provided at the tip is in close contact with the bottom surface of the tube 38 of the connecting member 34.

Accordingly, as shown in FIG. 7, the operating rod 30 is lowered while the operating rod 30 fitted to the tubular body 38 is affected by the magnetic force and the spring 32 coupled to the lower portion contracts. When the operating rod 30 is lowered, the pressing plate 26 seated on the operating rod 30 is also lowered. Since the packing 20 supported on the pressing plate 26 is desorbed by the pressure of the water flowing into the vertical pipe 16, the water moves to the discharge part 14 through the vertical pipe 16.

If the user wants to temporarily stop the water supply in order to soap the body or other things while taking a shower in this state, the gripper 200, such as a wire or wire coupled to the lower end of the slide bar 120 Pull down.

FIG. 8 shows the valve operating state after pulling the gripper 200 once in the initial FIG. 6 state and releasing the pull.

As shown, when the gripper 200 is pulled once, the slide bar 120 is lowered while the spring 130 inserted into the vertical pipe 114 is contracted, and accordingly, the engaging piece 140 is relatively lowered. The upper end of the first inclined groove 124 is moved upwardly inclined along the first upward guide portion (128a) of the guide groove (128).

At this time, the lower end of the locking piece 140 is pivoted in the pivot shaft groove 119 and the central portion of the locking piece 140 is moved to one side of the fan-shaped groove 118.

Then, when the pull of the gripper 200, such as a wire or wire coupled to the lower end of the slide bar 120, the upper end of the locking piece 140 is the first downward guide of the guide groove 128 ( 128b) is moved and supported by the second locking groove 126, in which the locking piece 140 is pivoted to the center of the fan-shaped groove 118 to be returned.

FIG. 9 is a cross-sectional view of the valve device in a state in which the locking piece 140 is caught and supported by the second locking groove 126 by pulling the gripper 200 once and releasing the pulling as shown in FIG. 8.

In the present state, the tip of the slide bar 120 is spaced apart from the bottom surface of the tube 38 of the connecting member 34 by a predetermined interval so as not to apply a magnetic force to the operating rod 30.

Therefore, the operating rod 30 is pushed upward by the restoring force of the spring 32 to push the pressing plate 26 to support the packing 20 seated on the pressing plate 26, so that the packing 20 is a vertical tube ( In contact with the lower end of 16), the valve remains closed and the water supply is temporarily stopped.

When the user wants to use the water again, the gripper 200 such as a wire or wire coupled to the lower end of the slide bar 120 is pulled downward again.

FIG. 10 shows the valve operating state after pulling the gripper 200 once again in the state of FIG. 9 and releasing the pulling.

As shown in FIG. 10, when the gripper 200 is pulled again, the slide bar 120 is lowered and the spring 130 is contracted, and the upper end of the locking piece 140 is the second end of the guide groove 128. It is moved upwardly obliquely along the upward guide portion 128c.

Then, when the pull is released again, the slide bar 120 is raised again by the restoring force of the spring 130, and the magnet 122 of the tip is brought into close contact with the tubular body 38 of the connecting member 34, and the engaging piece 140 is formed. The upper end of) is moved along the second downward guide portion 128d of the guide groove 128 and returned to the first locking groove 124 again.

Accordingly, as shown in FIG. 7, the valve is opened so that water is supplied to the showerhead 60.

As such, when the grip valve 200 such as a wire or wire coupled to the lower end of the slide bar 120 is pulled once and released in the first valve open state, the valve is closed to stop the water supply. When pulled and released, the valve opens to resume water supply.

As such, as the operation of pulling and releasing the slide bar 120 is repeated, the water supplied to the shower head 60 may be manually controlled.

So far, the present invention has been described in detail with reference to embodiments of the present invention. However, the scope of the present invention is not limited thereto, and the present invention is intended to include practically equivalent ranges.

Claims

A valve body 10 including a water supply part 12, a discharge part 14, and a vertical pipe 16; A connection member 34 composed of a coupling plate 36 coupled to the lower side of the valve body 10 and a pipe 38 formed below the coupling plate 36; A spring 32 and an operating rod 30 inserted into the tube 38; In a conventional water-saving valve device including a pressing plate 26 and a packing 20 which moves in contact with the operating rod 30 and moves up and down,

On the lower side of the connecting member 34 is coupled to a manual operation unit 100 for manually moving the operating rod 30, the manual operation unit 100 is:

A lower body 110 coupled to a lower side of the connection member 34 and having an upper side open and a space 112 formed therein, and having a vertical tube 114 formed at a lower side thereof;

As the magnet 122 is provided at the upper end and is slidably moved up and down in the state of being inserted into the vertical pipe 114, the operating rod 30 accommodated in the pipe 38 of the connecting member 34 is applied to the magnetic force. A slide bar 120 which is moved up and down by;

A spring 130 fitted to the lower outer circumference of the slide bar 120 to elastically support the slide bar 120 in the vertical pipe 114;

When the slide bar 120 is moved up and down, the upper end is alternately supported by the first engaging groove 124 and the second engaging groove 126 formed side by side up and down the outer peripheral surface of the slide bar 120, the lower end is As it is supported on the outer circumferential surface of the vertical tube 114, characterized in that it comprises a locking piece (140) for alternately fixing the slide bar 120 to a height and a height not exerted a magnetic force on the operating rod (30). Water-saving valve device.
The method of claim 1,

Between the first locking groove 124 and the second locking groove 126 is formed a guide groove 128 for guiding the movement of the upper end of the locking piece 140,

The guide groove 128 has a first upward guide portion 128a for guiding the locking piece 140 upwardly inclined from the first locking groove 124 and the second hook from the end of the first upward guide portion 128a. The first downward guide portion (128b) for guiding downward inclined toward the groove (126),

A second upward guide portion 128c guiding upwardly obliquely from the second catching groove 126 and a second downward guide sloping downwardly from the end of the second upward guide portion 128c toward the first catching groove 124; Water-saving valve device comprising a downward guide portion (128d).
The method according to claim 1 or 2,

Water-saving valve device, characterized in that the escape prevention ring 150 is fitted to the outside of the engaging piece 140 so that the engaging piece 140 is not separated from the vertical pipe (114).
The method of claim 2,

One side of the upper outer circumferential surface of the vertical body 114 of the lower body 110 is provided with a through groove 116 extending in the horizontal direction, the upper end of the engaging piece 140 passes through the through groove 116 slide bar Is moved along the guide groove 128 formed on the outer circumferential surface of the 120,

The lower end of the engaging piece 140 is water-saving valve device, characterized in that the pivotable fitting to the pivot shaft groove (119) formed on the outer peripheral surface of the lower vertical tube (114) of the lower body (110).
The method of claim 4, wherein

A water-saving valve device, characterized in that a fan-shaped groove (118) is provided below the through groove (116) of the vertical pipe (114) to provide a left and right turning space of the locking piece (140) and become narrowed downward.
The method according to claim 1 or 2,

The water-saving valve device, characterized in that the lower end of the slide bar 120 is coupled to the gripping opening 200 to facilitate gripping when the slide bar 120 is raised and lowered manually.
The method according to claim 1 or 2,

The water-saving valve device is a water-saving valve device, characterized in that installed in the middle of the water pipe (50) and the shower head.