WO2007099832A1

WO2007099832A1 - Water discharge device

Info

Publication number: WO2007099832A1
Application number: PCT/JP2007/053186
Authority: WO
Inventors: Takahiro Ohashi; Ryoko Ishimaru; Kazuki Kuroda
Original assignee: Toto Ltd.
Priority date: 2006-03-03
Filing date: 2007-02-21
Publication date: 2007-09-07
Also published as: TW200738344A; JPWO2007099832A1

Abstract

A water discharge device (100) including a housing (102) having inside a fan-like space, a core (120) rotatable while partitioning the space into first and second pressure chambers and having inside an in-core flow path, a water discharge tube body (180) having a water discharge flow path that communicates with the in-core flow path and reaches the outside of the housing, first and second water entrance openings (112, 114) for introducing fluid to the first and second pressure chambers, first and second water introduction openings (132, 134) for introducing the fluid from the first and second pressure chambers to the in-core flow path, valve bodies (142, 144) for varying the degree of opening of the first and second introduction openings, control means (146, 148) for activating a valve body when the core reaches an end of one pressure chamber to increase the pressure in the pressure chamber to a level higher than that in the other pressure chamber, and rotation speed variation means (200) capable of varying the rotation speed of the core. Depending on preference, the user of the device can stop repeating motion of the device during water discharge or can regulate the operating speed of the device.

Description

Specification

Water discharge device

Technical field

TECHNICAL FIELD [0001] The present invention relates to a water discharge device, and more particularly to a water discharge device that enables an automatic reciprocation operation that repeatedly changes the water discharge direction of a shower nozzle, a water spray nozzle, or the like.

Background art

[0002] There is an increasing need for shower systems, water discharge / spray systems for relaxation and beauty and health promotion. In these applications, for example, there is an approach that promotes the massage effect by modulating the water flow at a relatively high speed of several tens of hertz or more using a swirling flow. On the other hand, for example, if the water discharge position and direction of the shower nozzle are repeatedly changed at a relatively slow speed of several hertz or less, for example, the water discharge is uniformly sprayed into a predetermined range of the human body, for example, to achieve a relaxation effect. Etc. can be promoted.

[0003] Similar needs exist widely in consumer equipment, industrial use, agriculture and forestry use, etc., and can be used for various purposes such as cleaning, rinsing, cooling, humidification, pretreatment, and cultivation. A reciprocating motion is required!

[0004] Although electric means such as motors and solenoids can be used for reciprocal operation, in order to install it in a system that discharges water in a bathroom or the like, measures for securing a power source, electric shock, electric leakage, etc. There are many issues that need to be solved in terms of cost and reliability.

[0005] On the other hand, if the reciprocating operation can be realized by hydropower, electricity and lubricating oil are not necessary, and improvements can be expected from many viewpoints such as initial cost, running cost, reliability, and maintainability.

[0006] As a shower apparatus that can move up and down, a combination of a piston and a four-way valve is disclosed (Patent Document 1). This shower device moves a shower head up and down via a wire by moving a piston provided in a cylinder up and down by water pressure. The switching of the vertical movement of the piston is performed by switching the water supply flow path to the cylinder with a 4-way valve. [0007] However, in the case of this shower device, the cylinder and the four-way valve are provided separately, and the system is large and complicated. In addition, there is room for improvement in that the discharge capacity is reduced due to the large pressure loss due to the long flow path.

Patent Document 1: Japanese Patent Laid-Open No. 2-134119

Disclosure of the invention

Problems to be solved by the invention

[0008] In order to solve this problem, the present inventors have invented a water discharging device based on a new idea and having a compact and simple structure and capable of repetitive rotation using hydraulic power. On the other hand, considering the actual usage of the water discharge device that enables repetitive rotational movement in this way, for example, when using as a shower, when washing hair, the rotational operation is stopped. It is convenient to be able to. In addition, when performing water massage, etc., it is more convenient if the repetitive motion can be stopped or the operation speed can be controlled according to the user's preference.

[0009] The present invention has been made on the basis of recognition of a powerful problem, and an object of the present invention is to provide a water spouting device that can stop repetitive motion according to the user's preference while controlling water discharge or control the operation speed. It is to provide.

Means for solving the problem

[0010] In order to achieve the above object, according to one aspect of the present invention,

A housing having a fan-shaped space inside;

A core that is rotatable in the space while dividing the fan-shaped space into first and second pressure chambers, and has a core-internal flow path;

A water discharge cylinder having a water discharge flow path communicating with the flow path in the core and reaching the outside of the housing;

A first water inlet for introducing a fluid into the first pressure chamber;

A second water inlet for introducing a fluid into the second pressure chamber;

A first inlet for introducing fluid from the first pressure chamber into the core flow path; a second inlet for introducing fluid from the second pressure chamber to the core flow path; A valve body for changing the opening of the first and second inlets; When the core reaches the end on the first pressure chamber side in the rotation region, the pressure in the first pressure chamber is set higher than the pressure in the second pressure chamber, and the center When the child reaches the end on the second pressure chamber side in the rotation region, the pressure in the second pressure chamber is set higher than the pressure in the first pressure chamber. Control means for operating the valve body to change the opening of the first and second inlets;

Rotation speed variable means capable of changing the rotation speed of the core;

There is provided a water discharge device characterized by comprising:

Brief Description of Drawings

FIG. 1 is a schematic view illustrating a water discharge device according to an embodiment of the present invention.

FIG. 2 is a perspective view illustrating a water discharge device of a first specific example of the embodiment.

FIG. 3 is a perspective cross-sectional view illustrating a water discharging device of a first specific example.

[FIG. 4] (a) is a perspective view of the water discharging device of the first specific example as seen from the bottom surface side, and (b) is an oblique sectional view thereof.

FIG. 5 is a cross-sectional view of the water discharge device of the first specific example viewed from the side.

FIG. 6 is a cross-sectional view taken along line AA ′ shown in FIG.

FIG. 7 is a perspective view illustrating a main valve and a slide bar in the water discharge device of the first specific example.

[FIG. 8] (a) to (c) are schematic diagrams for explaining the operation of the water discharge device of the first specific example.

[FIG. 9] (a) to (d) are schematic diagrams for explaining the operation of the control means in the first specific example.

[FIG. 10] (a) to (d) are schematic views showing the operation of the control means in a modification of the first specific example.

FIG. 11 is a cross-sectional view showing a water discharger according to a second specific example of an embodiment of the present invention.

FIG. 12 is a front view showing a water discharger according to a third specific example of an embodiment of the present invention.

FIG. 13 is a sectional view taken along line BB ′ shown in FIG.

FIG. 14 is a cross-sectional view showing a water discharger according to a fourth specific example of an embodiment of the present invention.

FIG. 15 is a cross-sectional view showing a water discharger according to a fifth specific example of an embodiment of the present invention.

FIG. 16 is a cross-sectional view showing a water discharger according to a fifth specific example of an embodiment of the present invention. 圆 17] It is sectional drawing which shows the water discharging apparatus which concerns on the 5th example of embodiment of this invention.

1—

[0118] FIG. 18 is a cross-sectional view showing a water discharger according to a fifth specific example of an embodiment of the present invention.圆 19] A sectional view showing a water discharger according to a sixth specific example of an embodiment of the present invention.圆 20] A sectional view showing a water discharger according to a seventh example of the embodiment of the present invention.圆 21] It is sectional drawing which shows the water discharging apparatus which concerns on the 8th example of embodiment of this invention.圆 22] It is a sectional view showing a water discharging device according to a ninth specific example of an embodiment of the present invention.圆 23] It is a cross-sectional view showing a water discharger according to a tenth specific example of an embodiment of the present invention. 24] A sectional view showing the water discharger according to the tenth specific example of the embodiment of the present invention. FIG. 25 is a schematic diagram illustrating a first application example of an embodiment of the present invention.

圆 26] It is a schematic diagram showing a second application example of the embodiment of the present invention.

Explanation of symbols

100a to 100i water discharger

102 housing

103 Housing body

104, 105 Housing lid

112, 114 water inlet

116, 118 Pressure chamber

120 core

121 Core body

122 Core lid

124 Core flow path

126, 127 seals

132, 134 Introduction PI

142, 144 Main valve

146, 148 Slide bar

149 Connecting rod

160 leaf spring

180 Water discharge cylinder 182 Water discharge channel

200, 200a, 200b, 200c, 200d, 200e Speed control unit

201 Through hole

202 Support section

203 keys

204 protrusion

205 groove

206 Latch mechanism

211 Braking member

212 Tightening member

213 lever

215 Rotating shaft part

220 3-way valve

222 Waterway

224 hydraulic cuff

226 Release tube

230, 232 On-off valve

234 3-way valve

240 Bypass waterway

242 On-off valve

251 opening

252 Slide member

253 seal

500, 700 water supply pipe

600 Water supply valve

820 Shower Noznore

830 Water discharge nozzle

900 wall 920 horizontal plane

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic view illustrating a water discharge device that works on this embodiment.

A water discharge device 100 according to the present embodiment includes a housing 102 and a water discharge cylinder 180 protruding from the housing 102. A water discharge channel 182 is provided in the water discharge cylinder 180, and water discharge is obtained from the tip of the water discharge cylinder 180. A fan-shaped housing space is formed in the housing 102, and a core is provided in the housing space so as to be rotatable. The rotation axis of the core coincides with the central axis of the water discharge cylinder 180.

The housing 102 is provided with two water inlets 112 and 114 on one surface orthogonal to the surface from which the water discharge cylinder 180 projects. These water inlets 112 and 114 are connected in parallel to the water supply pipe with 700 water supply lines. That is, the water supply pipe 700 is bifurcated into two branch pipes having the same thickness and length, and these branch pipes are connected to the water inlets 112 and 114, respectively. Further, a water supply valve 600 is provided on the upstream side of the branch position in the water supply pipe 700. The water supply valve 600 adjusts the flow rate of the fluid flowing through the water supply pipe 700. When the water supply valve 600 provided in the water supply pipe 700 is opened, the fluid W such as water is supplied from the water supply pipe 700 to the water inlets 112 and 114 at substantially the same pressure. As a result, as shown by the arrow M, the water discharge can be discharged from the water discharge flow path 182 while the water discharge cylinder 180 is reciprocally rotated about the central axis thereof as the rotation axis. Therefore, if the housing 102 is fixed and a nozzle or a shower head is provided at the tip of the water discharge cylinder 180, it can be used as a water discharge device in which the water discharge direction changes repeatedly.

[0016] In the water discharge device 100, a speed control unit 200 is provided. The speed control unit 200 controls the rotation speed of the water discharge cylinder 180. In the present specification, “controlling the speed” includes stopping the rotation operation by setting the speed to zero. In FIG. 1, an example in which the speed control unit 200 is provided around the water discharge cylinder 180 is shown. However, as described later with a specific example, the arrangement of the speed control unit 200 is shown. The position is not limited to this.

[0017] At this time, the water supply valve 600 is connected to a water supply hot water supply facility (not shown) such as a water supply or a water heater. The water discharge flow rate changes according to the adjustment amount of the water supply valve 600, the reciprocating speed of the water discharge cylinder 180 also changes, and when the water supply valve 600 is closed, the water discharge is reduced. At the same time, the reciprocating motion of the water discharge cylinder 180 also stops.

[0018] In this embodiment, by providing the speed control unit 200, the speed of the reciprocating rotational movement of the water discharge cylinder 180 is adjusted or stopped at an arbitrary position while water is discharged. It is out.

Next, a specific example for realizing the water discharging apparatus according to the present embodiment will be described.

First, a first specific example will be described.

In this specific example, as the speed control unit 200, the rotational movement of the water discharge cylinder on the surface (hereinafter referred to as the “rear surface”) opposite to the surface (hereinafter referred to as “front surface”) of the housing from which the water discharge cylinder is drawn out. This is an example in which a key for stopping the operation is provided.

[0020] FIG. 2 is a perspective view illustrating the water discharging device of this example.

FIG. 3 is a perspective cross-sectional view illustrating the water discharging device of this example.

Fig. 4 (a) is a perspective view of the water discharge device of this example as seen from the bottom side, and (b) is a perspective sectional view thereof.

FIG. 5 is a cross-sectional view of the water discharge device of this example as seen from the side.

FIG. 6 is a cross-sectional view taken along line AA ′ shown in FIG.

FIG. 7 is a perspective view illustrating a main valve and a slide bar of the water discharging device of this example. In FIG. 3, the speed control unit is not shown.

As shown in FIG. 2, in the water discharge device 100 according to this example, a housing 102 is provided. The housing 102 is formed such that the housing lids 104 and 105 are connected to both sides of the frame-shaped housing main body 103 so that the inside becomes hollow. Further, a water discharge cylinder 180 protrudes from one side of the housing 102, that is, from the side where the housing lid 104 is disposed, through the housing lid 104. The water discharge cylindrical body 180 has a hollow structure having a water discharge flow path 182 inside, and the tip thereof is open and serves as a water discharge opening. As will be described later, when water is introduced into the water inlets 112 and 114 provided in the housing 102, the water discharge cylinder 180 reciprocates in the direction of the arrow M with the central axis as a rotation axis. Next, the internal structure of the water discharge device 100 will be described.

As shown in FIGS. 3 to 6, a core 120 comprising a core main body 121 and a core lid 122 is disposed in a fan-shaped housing space formed by a housing main body 103 and housing lids 104 and 105. It is housed so as to be rotatable as a central axis. That is, the core 120 rotates by dividing the inside of the fan-shaped housing space into the first pressure chamber 116 and the second pressure chamber 118. A water discharge cylinder 180 is drawn from the core 120 to the front side, and the water discharge cylinder 180 passes through the housing lid 104 and protrudes from the front of the housing 102 to the outside. In FIG. 6, the first pressure chamber 116 is disposed on the right side as viewed from the core 120, and the second pressure chamber 118 is disposed on the left side with the illustrated direction. Based on this, for convenience of explanation, the pressure chamber 116 side is also simply referred to as “right side” and the pressure chamber 118 side is also simply referred to as “left side” as viewed from the core 120.

[0023] Water is introduced into the pressure chambers 116 and 118 from the water inlets 112 and 114, respectively. A seal 127 is provided at a sliding portion between the core 120 and the inner wall of the housing 102 to keep the fluid tight and smooth sliding. In addition, a seal 126 is provided at the sliding portion between the water discharge cylinder 180 and the housing 102 for the same purpose. The materials of these seals 127 and 126 also facilitate sliding while maintaining liquid tightness. For example, Teflon (registered trademark), NBR (nitrile rubber), EPDM (ethylene propylene rubber) and POM ( Polyacetal) can be used. “Liquid-tight” as used herein means a state sufficient to cause a pressure difference between the first pressure chamber 116 and the second pressure chamber 118 (hereinafter also referred to as “left and right pressure chambers”). I can do it.

[0024] Next, the structure of the core 120 will be described.

A core inner passage 124 is formed inside the core 120, and the core inner passage 124 communicates with a water discharge passage 182 provided in the water discharge cylinder 180. In addition, the core 120 is provided with introduction ports 132 and 134 for communicating the core flow path 124 and the pressure chambers 116 and 118. Then, main valves 142 and 144 as valve bodies are provided so as to traverse the inner core flow path 124. When the main valve 144 moves away from the core 120, the inlet 134 is opened, and when the main valve 142 moves away from the core 120, the inlet 132 is opened.

[0025] As shown in FIG. 7, the right main valve 142 and the left main valve 144 are connected by a connecting rod 149. It is installed so as to be movable to the left and right through the inlets 132 and 134 provided in the core body 121 and the core lid 122. That is, the main valves 142 and 144 are installed to be movable left and right with a predetermined stroke with respect to the core 120. A rib 143 is formed on the main valves 142 and 144, and the main valves 142 and 144 are configured to move coaxially with respect to the inlets 132 and 134. When the main valves 142 and 144 move away from the core 120, the grooves 145 provided between the ribs 143 become the openings of the introduction ports 132 and 134, thereby forming a water channel.

[0026] In addition, the water discharge device 100 is provided with a control means for controlling the operation of the main valves 142, 144. As will be described later, the control means includes slide bars 146 and 148 and a leaf spring 160. When the core 120 reaches the end on the pressure chamber 116 side in the rotation region, the control means makes the pressure in the pressure chamber 116 higher than the pressure in the pressure chamber 118, and the core 120 The main valves 142 and 144 are operated so that the pressure in the pressure chamber 118 becomes higher than the pressure in the pressure chamber 116 when reaching the end on the pressure chamber 118 side in the rotation region. And the opening of 134 is changed. That is, the inlets 132 and 134 are opened so that the magnitude relationship between the pressures in the pressure chambers 116 and 118 is reversed with the pressure in the pressure chamber 116 equal to the pressure in the pressure chamber 118. To change the degree.

More specifically, when the core 120 reaches the end on the pressure chamber 116 side in the rotation region, the control means determines the flow path resistance from the pressure chamber 116 to the core inner flow path 124. The main valves 142 and 144 are operated to change the opening of the inlets 132 and 134 so that the flow resistance from the force / pressure chamber 11 8 to the flow path 124 in the core is larger. When the pressure reaches the end on the pressure chamber 118 side in the rotation region, the flow resistance from the pressure chamber 118 to the core inner passage 124 The flow from the pressure chamber 116 to the core inner passage 124 Operate the main valves 1 42 and 144 to change the opening of the inlets 132 and 134 so that it becomes greater than the road resistance.

[0028] In the present specification, the "opening degree" of the introduction port is a parameter that determines the flow path resistance of the water flowing between the introduction port and the valve body. For example, in the state shown in FIG. 6, the flow resistance of the flow path formed between the inlet port 132 and the main valve 142 is the same as that of the flow path formed between the inlet port 134 and the main valve 144. Greater than channel resistance. In this case, the opening of the inlet 132 is smaller than the opening of the inlet 134. The rotation range of the core 120 is the water discharge The space where the core 120 actually rotates when the device 100 is operated. Further, the end of the rotation area refers to the end of the core 120 in the rotation direction.

Next, a specific configuration of the control unit will be described. The control means as described above includes slide bars 146 and 148 and a leaf spring 160. The leaf spring 160 is supported by the core main body 121 in a state in which both ends thereof are pressed toward each other, and the center portion of the leaf spring 160 is curved so as to protrude toward the pressure chamber 116 (right side) and pressure Two states, which are curved so as to protrude toward the chamber 118 (left side), are stable states. The slide bars 146 and 148 pass through the main valves 142 and 144 coaxially, and are connected to each other with the leaf spring 160 interposed therebetween. Slide bars 146 and 148 are longer than main valves 142 and 144. Therefore, slide bars 146 and 148 are installed so that they can move left and right with longer strokes than main valves 142 and 144. It has been.

[0030] The operations of the main valves 142, 144 that change the opening degree of the introduction ports 132, 134 are determined by the slide bars 146, 148. That is, as shown in FIGS. 3 and 5, the left and right slide bars 146 and 148 are connected with the compressed leaf spring 160 sandwiched therebetween, and the urging force directed toward the right end or the left end depending on the bending direction of the leaf spring 160. Receive. As a result, the slide bars 146, 148 are biased by the leaf spring 160 and move relative to the core, and the movement of the slide bars 146, 148 also causes the main valves 142, 144 to move relative to the core. The inlets 132 and 134 are controlled alternatively to either the fully open state or the fully closed state.

As shown in FIG. 5, in the water discharge device 100, a through hole 201 is formed on the opposite surface (back surface) of the housing 102 from which the water discharge cylindrical body 180 is drawn out. A support portion 202 is provided so as to surround 201. The through hole 201 is formed on the center of rotation of the core 120, that is, on an extension line of the central axis of the water discharge cylinder 180. A key 203 is provided so as to be slidably supported by the support portion 202 and through the support portion 202 and the through hole 201. A protrusion 204 is formed at the tip of the key 203. Further, a groove 205 is formed on the back surface of the core 120 so as to engage with the protrusion 204.

[0032] In addition, on the inner surface of the support portion 202, there are a "back position" where the key 203 is pushed into the housing 102 and a "front position" which is pulled out to the near side. Either A latch mechanism 206 is provided. The latch mechanism 206 is configured by, for example, a leaf spring. When the key 203 is defined at the “back position” by the latch mechanism 206, the tip of the key 203 abuts against the core 120, and the protrusion formed on the tip of the key 203 20 4 force on the core 120 Engages with the formed groove 205. On the other hand, when the key 203 is defined at the “front position” by the latch mechanism 206, the key 203 does not contact the core 120, and thus the protrusion 204 does not engage with the groove 205. Note that the speed control unit 200 is configured by the through hole 201, the support unit 202, the key 203, the protrusions 204 and 205, and the latch mechanism 206.

[0033] The operation of the water discharge device of this example will be described below.

First, the operation of the part other than the speed control unit in the water discharging apparatus of this specific example will be described.

FIGS. 8A to 8C are schematic diagrams for explaining the operation of the water discharging device of this example.

First, FIG. 8A shows a state in which the slide bars 146 and 148 are urged toward the left side by the action of the leaf spring 160. At this time, the main valves 142 and 144 are also urged to the left by the slide bar 146, so that the introduction port 132 is closed and the introduction port 134 is opened.

[0034] When water is supplied to the inlets 112 and 114 at substantially the same pressure in this state, the water introduced from the inlet 114 into the pressure chamber 118 as shown by the arrow A is introduced as shown by the arrow C. It flows into the core inner channel 124 from the port 134 and flows out through the water discharge channel 182 as indicated by the arrow D. On the other hand, the water introduced into the pressure chamber 116 from the inlet 112 as indicated by the arrow B has no outflow path because the inlet 132 is closed. For this reason, the pressure in the pressure chamber 116 is higher than the pressure in the pressure chamber 118. In other words, by providing a difference in the opening degree of the inlets 132 and 134, a difference in flow path resistance occurs, resulting in a pressure difference. As a result, the core 120 is pushed and rotated in the direction of the arrow M.

Note that when the core 120 rotates in the direction of the arrow M, the volume of the pressure chamber 116 increases, and the volume of the pressure chamber 118 decreases accordingly. For this reason, the water in the pressure chamber 118 is pushed out by the amount of water flowing into the pressure chamber 116 along the path indicated by the arrow B, and is included in the amount of water discharged from the flow path 182.

[0036] Further, the core 120 continues to rotate, and the slide bar 148 is placed on the inner wall of the housing 102. When it abuts and is pressed against the core 120, the bending direction of the leaf spring 160 is reversed, and the slide bars 146 and 148 are biased toward the opposite side as shown in FIG. 8 (b). . Then, when the slide bar 148 pushes the main valve 144, the main valves 142 and 144 also move to the right (clockwise direction). That is, the inlet 132 is opened and the inlet 134 is closed.

[0037] In the state shown in Fig. 8 (b), the water introduced into the pressure chamber 11 6 from the water inlet 112 as shown by the arrow B passes through the inlet 132 as shown by the arrow C. It flows into the child channel 124 and flows out through the water discharge channel 182 as indicated by the arrow D. On the other hand, as shown by the arrow A, the water introduced into the pressure chamber 118 from the water inlet 114 has no outflow path because the inlet 134 is closed. As a result, a pressure difference is generated in the pressure chambers 116 and 118, and the core 120 starts to rotate to the right side as indicated by an arrow M.

When the core 120 further rotates, the slide bar 146 moves to a position where it abuts against the inner wall of the housing 102 as shown in FIG. This state force also rotates the core 120 and pushes the slide bar 146 against the core 120, so that the bending direction of the leaf spring 160 is reversed and biased to the opposite side. Then, similarly to the state shown in FIG. 8 (a), the introduction port 132 is closed and the introduction port 134 is opened, and the core 120 starts to rotate toward the left side.

[0039] Next, the operation of the control means in this example will be described in more detail.

FIGS. 9A to 9D are schematic diagrams for explaining the operation of the control means in this example.

That is, FIG. 9 (a) shows a state in which the leaf spring 160 is urged and curved so that the right side is convex and the slide bars 146 and 148 are urged in this direction. At this time, the inlet 132 is closed by the main valve 142 and the inlet 134 is opened by the main valve 144.

In this state, when the core 120 rotates toward the right side, the slide bar 148 comes into contact with the inner wall of the housing 102 as shown in FIG. Since a pressure difference is acting on the core 120, the core 120 is further rotated to the right with the slide bar 148 in contact with the inner wall of the housing, and the state shown in FIG. 9B is obtained. That is, the relative position between the core 120 and the slide bar 148 is changed by overcoming the urging force of the leaf spring 160, and the slide bar 148 is pushed against the core 120. As a result, the leaf spring 160 is also deformed by being pushed to the left, as illustrated in FIG. It becomes such a substantially S-shaped state. At this time, a pressure difference acts on the main valves 142 and 144 in the same manner as the core 120, and the open / close state of the inlets 132 and 134 is not changed.

[0041] After that, when the core 120 is further rotated and the slide bar 148 is further pressed against the core 120, the bending direction of the leaf spring 160 is changed as shown in FIG. Start flipping to the left and urge slide bars 146 and 148 to the left.

Then, as shown in FIG. 9 (d), the main valve 142 and 144 force move to the left side by the urging force of the leaf spring 160, the inlet 132 is fully opened and the inlet 134 is fully closed.

[0042] As described above, in this specific example, the bending direction of the compressed leaf spring 160 is appropriately reversed by the slide bars 146, 148, and the main valves 142, 144 are operated using the biasing force. As a result, the inlets 132 and 134 are selectively controlled to either fully open or fully closed. In other words, by using the biasing force of the leaf spring 160, the opening difference between the left and right inlets 132 and 134 is reliably formed for the reversal of the core 120!

[0043] The mechanism of this example that controls the main valves 142, 144 via the slide bars 146, 148 plays an extremely important role in the smooth operation of the water discharge device 100. In other words, the compressed leaf spring 160 is in a stable state when bent to the right or left, but as shown in Fig. 9 (b), it is in the middle of these stable states and is in a metastable neutral state. It may be. In this state, the leaf spring 160 does not generate much urging force to the left or right. Therefore, in this state, if the opening degree of the inlets 132 and 134 is almost the same, water flows from the inlets 132 and 134 on both sides of the core, so the pressure difference disappears, and the core 120 rotation stops. That is, if the timing for starting the movement of the main valves 142 and 144 is earlier than the timing for reversing the leaf spring 160, the operation of the core 120 may stop.

[0044] On the other hand, according to this specific example, by providing slide bars 146 and 148 and adjusting their strokes as appropriate, in the metastable neutral state as shown in FIG. The state where 142 and 144 have not moved yet and the core 120 is kept under pressure is maintained. Then, the main valves 142 and 144 can start to move when the leaf spring 160 starts to reverse beyond this neutral state. That is, the movement start timing of the main valves 142 and 142 can be synchronized with the reversal timing of the leaf spring 160. In other words, the leaf spring 160 is reversed before the opening difference sufficient to rotate the core 120 disappears, and the main valves 142, 14 via the slide bars 146, 148 by the reversal force (biasing force). 4 can be moved to reverse the opening difference between the inlets 132 and 134 to the opening difference sufficient to rotate the core 120 in the reverse direction.

In this way, when the leaf spring 160 is in the neutral state, the opening degree of the inlets 132 and 134 becomes almost equal, and the problem that the core 120 stops is achieved, and smooth repetitive motion can be realized. .

[0046] In addition, in this case, even when the water discharge is started from the state where the core 120 is stopped in the vicinity of the middle of the rotation stroke, the main valve is operated by the leaf spring 160 at the time of the water discharge start. 142 and 144 are controlled so that either of the inlets 132 and 134 is open selectively, and a pressure difference is formed on both sides of the core 120 so that a stable initial operation can be started. In other words, the state where the opening of the introduction port 134 is larger than the opening of the introduction port 132 and the state where the opening of the introduction port 132 is larger than the opening of the introduction port 1 34 can be held alternatively. It can be.

Next, the operation of the speed control unit in the water discharge device 100 according to this specific example will be described. As shown in FIG. 5, when the key 203 is in the “front position” by the latch mechanism 206 as described above, the key 203 does not contact the core 120, and thus the protrusion 204 engages with the groove 205. do not do. In this state, the core 120 is not restricted by the speed control unit 200 and can freely rotate. Therefore, according to the above-described principle, the core 120 is repeatedly rotated by the water pressure, and the water discharge cylinder 180 is also repeatedly rotated.

On the other hand, when the key 203 is defined at the “back position” by the latch mechanism 206, the tip of the key 203 abuts against the core 120, and the protrusion 204 formed at the tip of the key 203 It engages with a groove 205 formed in the child 120. As a result, the rotational movement of the core 120 is restricted, and the core 120 is fixed to the housing 102. That is, the turning operation of the core 120 is stopped, and the turning operation of the water discharge cylinder 180 is also stopped. In this manner, the water discharge cylinder 180 can be stopped by sliding the key 203 to the back and engaging the protrusion 204 with the groove 205. Also in this case, water discharge from the water discharge flow path 182 is continued.

[0049] Thus, according to this specific example, the user prefers the water discharge cylinder 180 with a simple mechanism while discharging water. It is possible to reliably stop at an angle of. Further, since the speed control unit 200 is arranged on the rotating shaft of the core 120, the whole can be controlled in a small area, and the water discharging device can be configured compactly. However, the speed control unit 200 should be placed at a position where the force on the rotation axis of the core 120 is also removed.

[0050] Further, according to this specific example, the rotational direction of the core 120, the movable direction of the main valves 142, 144, the movable direction of the slide bars 146, 148, and the biasing direction of the leaf spring 160 are substantially the same. By doing so, it is possible to effectively utilize the moving force of the core having a large pressure-receiving area that does not waste the way the force works, and smooth and stable operation becomes possible. In other words, by linking the movement operation of the core 120 and the opening control operation, the control operation for reversing the opening / closing relationship of the inlets 132 and 134 for reversing the core 120 can be performed reliably and easily. It realizes a simple and compact valve body and control means. Thereby, the magnitude relationship of the opening degree difference of the inlet is appropriately reversed according to the rotation of the core 120, and the core 120 can be operated repeatedly left and right.

[0051] That is, in order to move the core 120, a difference in opening degree of the introduction ports 132 and 134 may be provided to generate a pressure difference necessary for movement. Similarly, when the rotation direction of the core 120 is reversed, the magnitude relationship between the opening degrees of the introduction ports 132 and 134 may be reversed by the control means. For example, the reversing operation can be performed by changing the ratio of the opening degree of the introduction ports 132 and 134 from 70:30 to 30:70 by the control means. Furthermore, if the opening degree is changed from 100: 0 to 0: 100 by the control means, the most reliable and stable reversing operation is possible.

[0052] Further, according to the present specific example, mechanical power such as electricity is not required, and smooth reciprocal reversal motion is possible only with supply pressure of water or the like. No countermeasure is required. In addition, smooth operation is possible without being affected by disturbances such as electromagnetic noise.

[0053] Further, according to this specific example, the main valves 142 and 144 and the control means are provided attached to the core 120, so that, for example, an external four-way valve or the like is not required, and the configuration is simple. Smooth reciprocating motion can be realized. As a result, downsizing becomes easy and the flow path becomes simple, which is advantageous in that pressure loss can be suppressed and the water discharge amount and water discharge pressure can be secured. The main valves 142 and 144 and control means are built in the housing 102. Because of this structure, it is possible to realize a smooth operation that is strong against disturbance. Furthermore, with regard to water supply, it is excellent in workability just by branching the same water supply source power and connecting it to two water inlets. Furthermore, since the water channel is formed inside the rotating core and the water discharge cylinder, it is possible to change the water discharge angle simply by connecting various nozzles or spouts to the tip of the water discharge cylinder. There is also excellent workability in that no special connecting member is required. In particular, the water discharge device of this specific example is advantageous in that it is excellent in workability even when it is installed “retrofitting” on existing equipment indoors.

It should be noted that the thrust obtained by the rotating operation is determined by the product of the water pressure applied to the core 120 and the pressure receiving area of the core. Therefore, if the pressure receiving area of the core 120 is increased, a large thrust corresponding to the pressure receiving area can be obtained.

In this specific example, the slide bars 146 and 148 are brought into contact with the inner wall of the housing when the core 120 is reversed, but the present invention is not limited to this. For example, a magnet is provided on the slide bar 146, 148, while a magnet is also provided on the tip of the inner wall of the housing, and the repulsive force acting between them is used to move the slide bar 146, 148 against the nosing. It is also possible to stop it relatively. In this case, in the state corresponding to FIGS. 9 (a) to 9 (c), the slide bars 146, 148 do not come into contact with the front end portion of the inner wall of the housing 102, and the repulsive force of the magnet (not shown) The distal end force of the inner wall of the housing 102 is also separated by a predetermined distance. In this way, the core 120 can be reversed without contact. As a result, for example, the reciprocating motion of the core can be smoothed, and the slide bar can be prevented from coming into contact with the housing and generating sound. In this case, the rotation range of the core means a space where the core actually rotates in a space where the core should be rotated if there is no magnet.

Next, a modified example of this specific example will be described. In this modification, a magnet is used as a control means for reversing the magnitude relationship between the openings of the introduction ports 132 and 134, instead of the plate panel and slide bar as in the first specific example described above.

FIGS. 10A to 10D are schematic views showing the operation of the control means in this modification.

FIG. 10A shows a state in which the core 120 rotates toward the right side as the left side force moves toward the right side, and the main valve 144 is in contact with the inner wall of the housing 102. In the case of this modification, the core 120 has a magnet 170. The housing 102 is provided with a magnet 174. In this modification, one of the magnets 170 and 174 may be replaced with a ferromagnetic material because the attractive force between the magnets 170 and 174 is used.

In the state shown in FIG. 10 (a), the force due to the pressure difference acts on the core 120, so that the core 120 further rotates to the right. That is, the core 120 is further rotated to the right while the main valve 144 is in contact with the sleeve 102 and fixed in the moving direction.

[0059] Finally, the state shown in Fig. 10 (b) is obtained. In this state, since the opening degree of the inlets 132 and 134 is substantially the same, a pressure difference due to a difference in flow path resistance does not occur. However, at this time, the core 120 can be further pulled to the right side by the attractive force acting between the magnets 170 and 174.

In this case, depending on the value of the sliding resistance of the core 120, the core 120 may stop before the state shown in FIG. 10B is reached. In such a case, it is desirable to attract the core 120 by an attractive force acting between the magnet 170 and the magnet 174 in the state between FIG. 10 (a) and FIG. 10 (b).

[0061] When the core 120 is pulled to the right side by the attractive force of the magnet from the state shown in Fig. 10 (b), the core 120 reaches the end of its rotation region, and is shown in Fig. 10 (c). Thus, a state is formed in which the opening of the inlet 132 is larger than the opening of the inlet 134. As a result, a difference occurs in the flow path resistance of these inlets 132 and 1 34, resulting in a pressure difference. That is, the pressure on the right side of the core 120 becomes higher, and the core 120 starts to move to the left side. That is, the core 120 can be reversed by reversing the magnitude relation of the opening degree difference between the inlets 132 and 134.

[0062] At this time, the pressure difference also acts on the main valve 144, and a force in the direction of closing the main valve 144 acts. As a result, as shown in FIG. 10 (d), the main valve 144 is completely closed, and the pressure on the right side of the core 120 increases to the maximum value. That is, the maximum driving force to the left is obtained after the core 120 is inverted.

As described above, if the core 120 can be pulled to the state shown in FIG. 10 (c) by the attractive force acting between the magnet 170 and the magnet 174, the introduction ports 132 and 134 can be opened. The magnitude relationship between the degrees can be reversed, and the core 120 can be reversed. That is, the core 120 can be reciprocated in the nodding 102. [0064] In this case, the core 120 needs to overcome the attractive force of the magnet after rotation and rotate. In other words, it is desirable to appropriately set the balance between the force acting on the core 120 due to the pressure difference and the attractive force obtained by the magnet.

[0065] Further, in this modification, the surfaces of the main valves 142 and 144 (the contact surfaces with the louvers 102) protrude in a curved shape so that a gap is generated even when the main valves 142 and 144 are in contact with the housing 102. . Thus, by reducing the contact area with the housing 102, the pressure difference received by the valve body can be effectively utilized, and the valve body can be smoothly reversed by reversing the degree of opening. I'll do it.

In the present modification, the force with which the main valves 142 and 144 are brought into contact with the inner wall of the nosing 102 when the core 120 is reversed is not limited to this. For example, the main valves 142 and 144 are provided with magnets, while the inner wall of the housing 102 is provided with magnets, and the repulsive force acting between them is used to make the main valves 142 and 144 relative to the housing 102. It is also possible to stop it. That is, in this case, in the state corresponding to FIGS. 10 (a) to (c), the main valves 142 and 144 do not contact the inner wall of the housing 102, and the housing (reaction force) of the magnet (not shown) The inner wall force of 102 is also separated by a predetermined distance. In this way, the core can be reversed without contact.

[0067] Next, a second specific example of the present embodiment will be described.

FIG. 11 is a cross-sectional view showing a water discharging device according to this example.

In the water discharge device 100a according to this specific example, unlike the water discharge device 100 according to the first specific example described above (see, for example, FIG. 5), the speed control unit 200a is provided on the front surface of the housing 102.

That is, the housing 102 is not provided with a through-hole constituting the speed control unit 200a, and the support unit 202 is provided on the front surface of the housing 102, that is, the surface on the side from which the water discharge cylindrical body 180 is drawn. Is fixed. Then, the key 203 is inserted through the support portion 202, and its tip end abuts against the side surface of the water discharge cylinder 180. A protrusion 204 is formed at the tip of the key 203. A groove 205 that engages with the protrusion 204 is formed on the side surface of the water discharge cylinder 180. The grooves 205 extend along the central axis of the water discharge cylindrical body 180 and are arranged along the circumferential direction of the plurality of grooves 205 force water discharge cylindrical body 180. Furthermore, on the inner surface of the support 202 Is provided with a latch mechanism 206 that regulates the position of the key 203 between the “lower position” where the tip of the key 203 abuts against the water discharge cylinder 180 and the “upper position” where the key 203 does not abut. RU The configuration other than the above in this specific example is the same as that of the first specific example described above.

In this specific example, when the latch mechanism 206 defines the key 203 in the “up position”, the key 203 does not contact the water discharge cylinder 180, and thus the protrusion 204 is engaged with the groove 205. Therefore, the water discharge cylinder 180 can move freely, and reciprocates with water pressure. On the other hand, when the key 203 is pushed downward, the latch mechanism 206 fixes the key 203 in the “down position” and the tip of the key 203 abuts against the water discharge cylinder 180. As a result, the protrusion 204 and the groove 205 are engaged, and the water discharge cylinder 180 is fixed to the housing 102. As a result, the rotational motion of the water discharge cylinder 180 stops. Operations and effects other than those described above in this specific example are the same as those in the first specific example described above.

[0070] Next, a third example of the present embodiment will be described.

FIG. 12 is a front view showing the water discharging device according to this example.

FIG. 13 is a cross-sectional view taken along line BB ′ shown in FIG.

This specific example is an example in which a braking member that gives sliding resistance to the water discharge cylinder and a tightening mechanism that tightens the braking member are provided as a speed control unit at a bearing portion on the front surface of the housing.

As shown in FIGS. 12 and 13, in the water discharge device 100b according to this specific example, the braking member 211 provided so as to surround the water discharge cylinder 180, the fastening member 212 surrounding the periphery thereof, and the fastening member And a clamping lever 213 attached to the tip of 212. The braking member 211 can be formed of, for example, rubber or soft grease. The fastening member 212 is formed of an elastic material such as stainless steel or plastic, and one end is fixed to the housing 102. The tightening lever 213 is coupled to the tightening member 212 by, for example, a screw mechanism. The braking member 211, the fastening member 212, and the fastening lever 213 constitute a speed control unit 200b.

In the state where the tightening lever 213 is loosened, the braking member 211 is not pressed against the water discharge cylinder 180 and does not apply an excessive load to the water discharge cylinder 180. Therefore, the water discharge cylinder 180 can freely reciprocate. On the other hand, when the tightening lever 212 is rotated in the tightening direction, pressure is applied via the tightening member 212, and the braking member 211 is pressed against the water discharge cylinder 180. That is, the braking force (sliding resistance) applied to the water discharge cylinder 180 by the braking member 211 can be adjusted by adjusting the rotation angle or the rotation amount of the tightening lever 213. When the tightening lever 213 is further rotated, the braking member 211 can apply a sufficiently large braking force to the water discharge cylinder 180 to stop it. That is, when the user operates the tightening lever 213 while discharging water, the speed of the reciprocating motion of the water discharging cylinder 180 can be adjusted to a desired size and stopped at a desired position.

Note that the mechanism of the speed control unit 200b shown in FIGS. 12 and 13 is merely an example, and the shape, size, material, and arrangement relationship of the braking member 211, the fastening member 212, and the fastening lever 213 are modified. Those added with are included in the scope of the present invention. That is, if the braking force or sliding resistance is given to the reciprocating motion of the water discharge cylinder 180, and the magnitude of the braking force or sliding resistance is variable.

[0074] Next, a fourth specific example of the present embodiment will be described.

FIG. 14 is a cross-sectional view showing a water discharging device according to this example.

In the water discharge device 100c according to this specific example, the speed control unit 200c is provided in the bearing portion on the back side of the housing, compared to the water discharge device 100b according to the third specific example described above (see FIGS. 12 and 13). Is different. That is, from the core 120 toward the back side, the rotating shaft portion 215 is drawn out of the housing 102 along the rotating shaft of the core 120, and the rotating shaft portion 205 is braked. By tightening with the member 211, the rotational speed of the core 120 is controlled. The configuration, operation, and effects other than those described above in this example are the same as those in the third example described above.

[0075] Next, a fifth specific example of the present embodiment will be described.

15 to 18 are cross-sectional views showing the water discharge device according to this example.

In the water discharge device 100d according to this specific example, a three-way valve 220 is connected to the water supply pipe 500 in parallel with the water inlets 112 and 114. A first branch of the three-way valve 220 is connected to a hydraulic cuff 224 via a water passage 222. On the other hand, the second branch of the three-way valve 220 is connected to the discharge pipe 226. The hydraulic cuff 224 also has the strength of elastic materials such as rubber and resin. It has the form of a surrounding donut-shaped bag.

As shown in FIG. 15, in a state where the three-way valve 220 is switched and the water passage 222 and the discharge pipe 226 communicate with each other, the hydraulic cuff 224 is contracted without being pressurized. In this state, the hydraulic cuff 224 does not substantially apply a braking force or sliding resistance to the water discharge cylinder 180, and the water discharge cylinder 180 can freely rotate.

On the other hand, as shown in FIG. 16, in a state where the three-way valve 220 is switched and the water supply pipe 500 communicates with the water passage 222, water is supplied to the water pressure cuff 224 and the internal water pressure increases. . Then, the hydraulic cuff 224 swells and applies a braking force or sliding resistance to the water discharge cylinder 180. The braking force or sliding resistance applied to the water discharge cylinder 180 by the water pressure cuff 224 can be adjusted by the water pressure applied to the water pressure cuff 224. That is, the speed of the water discharge cylinder 180 can be adjusted by the water pressure applied to the water pressure cuff 224.

Therefore, when the water pressure of the water pressure cuff 224 increases and the speed of the water discharge cylinder 180 decreases to the target level, for example, as shown in FIG. 17, the water passage 222 is blocked and the water pressure is maintained. Please do it.

[0079] Further, as shown in FIG. 16, if the state where the water supply pipe 500 and the water passage 222 are communicated with each other is maintained, the water pressure of the water pressure cuff 224 increases to the maximum level. At this time, the size and material of the hydraulic cuff 224 are appropriately selected so that the water discharge cylinder 180 stops.

Actually, when the three-way valve 220 is switched to connect the water supply pipe 500 and the water passage 222 as shown in FIG. 16, the water pressure of the water pressure cuff 224 reaches the maximum level in a very short time. There are many. That is, if the three-way valve 220 is fully opened as shown in FIG. 16, the water pressure of the water pressure cuff 224 increases instantaneously and the water discharge cylinder 180 immediately stops.

On the other hand, when it is desired to adjust the speed of the water discharge cylinder 180, the water pressure is adjusted by adjusting the opening of the three-way valve 220 while communicating the water supply pipe 500 and the water passage 222 as illustrated in FIG. Apply the specified water pressure to the cuff 2 24. Then, when it reaches the target speed level, as shown in Fig. 17, block the water passage 222 and maintain the water pressure. In this way, it is possible to adjust or stop the speed while discharging water.

[0081] Next, a sixth specific example of the present embodiment will be described.

FIG. 19 is a cross-sectional view showing the water discharger according to this example. Compared with the water discharging device 1 OOd according to the fifth specific example described above (see FIGS. 15 to 18), the water discharging device 1 OOe according to this specific example has a rotating shaft portion 215 from the core 120 to the back side. The speed control unit 200e having a hydraulic cuff is provided on the back side of the housing 102 so as to apply a sliding resistance to the rotating shaft portion 215. The configuration, operation, and effects other than those described above in this specific example are the same as those in the fifth specific example described above.

[0082] Next, a seventh example of the present embodiment will be described.

FIG. 20 is a cross-sectional view showing the water discharger according to this example.

In the case of the water discharge device 100f according to this specific example, the on-off valves 220 and 222 are provided in the water channels from the water supply pipe 500 to the water inlets 112 and 114, respectively. By appropriately operating these on-off valves 230 and 232, the speed of the core 120 can be adjusted or stopped at an arbitrary position.

[0083] Hereinafter, the operation of the water discharging apparatus of this specific example will be described with reference to FIG.

First, when normal reciprocating motion is performed, both the open / close valves 230 and 232 are opened.

On the other hand, when the core 120 is stopped, one of the on-off valves 230 and 232 is closed. For example, when the core 120 is turned to the left side as shown in FIG. 8 (a), the on-off valve 232 is closed and the water supply from the water inlet 112 is shut off. Then, the supply of water to the pressure chamber 116 is stopped and the pressure does not increase, so that the rotation of the core 120 stops. Then, water supplied from the water inlet 114 via the pressure chamber 118 and the inlet 134 continues to be discharged from the water discharge channel 182. That is, the water discharge cylinder 180 can be stopped at an arbitrary position to continue water discharge.

Thus, in this specific example, the core 120 can be stopped at that position by closing the on-off valve on the opposite side of the on-off valve 230, 232 in the direction of travel of the core 120. it can.

On the other hand, when the on-off valve on the side of the core 120 in the traveling direction is closed, the core 120 can be stopped at the stroke end.

For example, as shown in FIG. 8 (a), when the core 120 is rotated to the left side by force, the on-off valve 230 is closed and the water supply from the water inlet 114 is shut off. Then, the core 120 continues to move to the left side due to the supply of water from the water inlet 112, abuts against the left inner wall of the housing 102 as shown in FIG. Switches to the closed state. In this state, since water is not supplied from the inlet 114, the core 120 remains stopped. Then, the water supplied from the water inlet 112 continues to be discharged from the water discharge channel 182. That is, the core 120 can be rotated to the stroke end and stopped to continue water discharge.

Next, an eighth specific example of the present embodiment will be described.

FIG. 21 is a cross-sectional view showing the water discharger according to this example.

In the water discharge device lOOg according to this specific example, a three-way valve 234 is provided at a branch portion of the water channel from the water supply pipe 500 to the water inlets 112 and 114. By switching the three-way valve 234, control similar to that described above with respect to the seventh example can be realized.

As shown in FIG. 21, when water is supplied to the water inlets 112 and 114 from the water supply pipe 500, normal reciprocating motion is executed.

[0087] On the other hand, when the three-way valve 234 is switched to supply water only to one of the water inlets 112 and 114, the movement of the core 120 stops and the rotation stops.

For example, when the core 120 is turned to the left as shown in FIG. 21, the three-way valve 23 4 is switched to shut off the water supply to the water inlet 112, and only the water inlet 114 has water. Supply. Then, the core 120 stops at that position, and therefore the water discharge cylinder 180 (see FIG. 2) stops at that angle and continues water discharge.

That is, in this specific example as well, the three-way valve 234 is switched to shut off the water supply to the inlet of the inlets 112 and 114 opposite to the direction in which the core 120 travels. With this, the core 120 can be stopped.

[0088] On the other hand, when the three-way valve 234 is switched to shut off the water supply to the water inlet on the traveling direction side of the core 120, the core 120 continues to move and stops at the stroke end to continue water discharge.

In this specific example, it is also easy to completely shut off the water supply to both the water inlets 112 and 114 by operating the three-way valve 234. In other words, the operation of the three-way valve 234 can conveniently stop the water discharge immediately. That is, the three-way valve 234 has It can also serve as the role of the water supply Noreb 600. Thus, when it is sufficient to control only the presence or absence of water supply without having to adjust the flow rate of water, the water supply valve can be omitted.

Next, a ninth specific example of the present embodiment will be described.

FIG. 22 is a cross-sectional view showing the water discharger according to this example.

In the case of this specific example, a bypass water channel 240 connecting pressure chambers 116 and 118 formed on the left and right of the core 120 is provided. An open / close valve 242 is provided in the bypass water channel 240. By operating the on-off valve 242, the core 120 can be stopped and the speed can be adjusted.

That is, when the on-off valve 242 is opened and the left and right pressure chambers 116 and 118 are connected by the bypass water channel 240, water is bypassed toward the pressure chamber where the volume should increase and the volume should decrease. For example, as shown in FIG. 22, when the on-off valve 242 is opened while the core 120 is moving toward the left side, the water supplied from the water inlet 112 to the pressure chamber 116 passes through the bypass water channel 240. Bypassed to 118. As a result, a sufficient pressure difference does not occur between the left and right of the core 120, and the rotating operation of the core 120 stops. At this time, since the inlet 134 remains open, the water discharge continues and the water discharge flow rate hardly changes. That is, the core 120 can be stopped at an arbitrary position while maintaining water discharge.

On the other hand, when the opening degree of the on-off valve 242 is adjusted, the rotational speed of the core 120 can be adjusted. In other words, the core 120 speed increases when the water flow bypass amount through the non-pass channel 240 is small, and the core 120 speed increases when the water flow bypass amount through the bypass channel 240 is large. Becomes smaller. Therefore, the speed of the core 120 can be adjusted by adjusting the opening degree of the on-off valve 242.

In this specific example, the core 120 can be stopped and the speed can be controlled by one on-off valve 242 regardless of the rotational direction of the core 120. In addition, since the flow resistance of the water channel leading to the left and right water inlets 112 and 114 does not change, the pressure loss in the water inlet route does not change, and the total water discharge flow rate is always constant during normal operation, when stopped, and during deceleration. Can be maintained.

It should be noted that the bypass water channel 240 preferably communicates with the pressure chambers 116 and 118 at both ends of the internal space of the housing 102. In other words, the core 120 has left and right straws In order to prevent the bypass water channel 240 from being blocked even when it is at the end of the housing, it is desirable that the opening of the neuro water channel 240 be formed as close to the end of the housing 102 as possible.

Next, a tenth specific example of the present embodiment will be described.

23 and 24 are cross-sectional views showing the water discharging device according to this example.

In the water discharge device lOOi according to this specific example, an opening 251 is formed on the rotation axis of the core 120 on the back surface of the housing 102, that is, on the central axis of the water discharge cylinder 180. A slide member 252 is fitted to 251. The slide member 252 is slidable with respect to the housing 102 between the “back position” pushed into the housing 102 and the “front position” pulled out from the housing 102. Further, in order to ensure the slidability and liquid tightness of the slide member 252, a seal 253 is provided in a portion of the housing 102 that contacts the slide member 252.

Next, the operation of this example will be described.

As shown in FIG. 23, when the slide member 252 is in the “back position”, the slide member 252 contacts the core 120. However, the slide member 252 does not hinder the movement of the core 120 while applying almost no frictional force to the core 120. Therefore, the core 120 performs repetitive rotational movements with water pressure, and the water discharge cylinder 180 also performs rotational movements accordingly.

On the other hand, as shown in FIG. 24, when the slide member 252 is in the “front position”, the slide member 252 does not contact the core 120 and the slide member 252 and the core 120 are not in contact with each other. A gap 2 54 is formed between them. This gap 254 communicates between the pressure chambers and functions in the same manner as the bypass water channel 240 in the ninth specific example described above. As a result, the core 120 stops. At this time, the pressure chamber is maintained at the liquid tightness with respect to the outside of the force housing 102 that is binosed.

[0098] If the position of the slide member 252 is a position between the "back position" shown in FIG. 23 and the "front position" shown in FIG. The core 120 can be moved at a slower speed than in the case of FIG. In other words, the rotational speed of the water discharge cylinder 180 can be adjusted by adjusting the amount by which the slide member 252 is pushed.

[0099] According to this specific example, the bypass water channel that communicates between the pressure chambers is connected to the inside of the lousing 102. Therefore, the entire water discharge device can be controlled by a mechanism provided in a small area. Thereby, a water discharging apparatus can be comprised compactly. The other configurations, operations, and effects of this example are the same as those of the ninth example described above.

[0100] Next, an application example of the water discharger according to the present embodiment will be described.

First, the first application example will be described.

FIG. 25 is a schematic diagram illustrating a first application example of this embodiment.

[0101] In this application example, the water discharge device 100 according to the present embodiment is provided. As the water discharge device 100, for example, the water discharge device according to any specific example of the present embodiment can be used. The water discharge device 100 is installed on a wall surface 900, and a shower nozzle 820 is attached to a water discharge cylinder. Further, the water discharge device 100 is provided with a speed control unit 200. In this application example, it is possible to provide the water discharger drive units on both sides of the shower nozzle 820, or to provide only one drive unit and the other as a simple bearing unit.

[0102] In this application example, the shower nozzle 820 reciprocates as indicated by the arrow M, so that shower-like water discharge can be sprayed in a wide range with a compact shape. For example, using this water discharge device in the bathroom is convenient because the user can take a shower efficiently without hand. In addition, it can be expected to have a massage effect and relaxation effect due to repeated shower stimuli.

[0103] On the other hand, when the shower nozzle 820 is fixed, the housing of the water discharge device 100 rotates, and this operation can also be used for massage or the like. In other words, a massage effect such as “Momihoshi” can be obtained by pressing the body against the reciprocating housing.

[0104] For example, when such a water discharger is installed on a wall 900 such as a bathroom and used as a body shower, the direction of water discharge can be changed periodically, so that the user shakes his / her body. This improves the feeling of use without having to change the site of action. Moreover, it is possible to obtain a relaxation effect by applying spray-like water discharge over a wide area, which improves the feeling of use.

In this shower apparatus, the rotation speed of the shower nozzle 820 can be adjusted by adjusting the speed control unit 200. As a result, the user's purpose and The water discharge state can be selected according to preference.

For example, when it is desired to quickly wet the entire body, the rotation speed of the shower nozzle 820 may be increased. Thereby, water can be discharged to the whole body in a short time.

Further, for example, when it is desired to wash away soap that has adhered to the entire body, the rotation speed of the shower nozzle 820 may be decreased. Thereby, a sufficient rinsing effect is obtained. Furthermore, for example, when washing hair or the like, it is convenient to stop the rotation of the shower nozzle 820 so that water can be discharged intensively to the hair.

In this way, the rotation speed of the shower nozzle 820 can be adjusted according to the purpose of the user, so that the satisfaction of the user is improved and unnecessary water discharge is reduced, and the cleaning efficiency and the massage efficiency are increased. be able to.

[0106] Next, a second application example of the present embodiment will be described.

FIG. 26 is a schematic diagram illustrating a water discharging apparatus according to this application example.

In this application example, the water discharge device 100 according to the present embodiment is installed on a horizontal surface 920, and a water discharge nozzle 830 is attached to the tip of a water discharge cylinder projecting upward. When a fluid such as water is supplied from the water supply pipe 700, the water discharge nozzle 830 reciprocates in the direction of arrow M and sprays the water discharge over a wide area. This water discharge device is suitable for use in applications such as spraying water to plants in a garden or field, or watering a ground. In other words, a water discharge device with excellent “retrofitability” in that it is compact and compact, has excellent portability, and can realize a system that is resistant to disturbance, and can be driven simply by connecting it to a hose as a water supply pipe. Can be realized.

Also in this application example, the rotational speed of the water discharge nozzle 830 can be adjusted by the action of the speed control unit 200. Thereby, watering conditions can be selected arbitrarily. Further, when it is desired to spray water intensively to one place on the ground, the rotation of the water discharge nozzle 830 can be stopped.

As described above, with reference to FIG. 25 and FIG. 26, the application example of the water discharging device according to the present embodiment is shown. The application example of the present invention is not limited to this. For example, by installing the water discharger according to the present embodiment in a sink or the like, it is possible to increase the cleaning efficiency when the user is washing hands or tableware. It is also convenient for the elderly and disabled. Can provide a handwashing machine.

In this case as well, by operating the speed control unit, it is possible to operate at a speed according to the user's preference and the object. Furthermore, the nozzle can be fixed at a user's favorite position and discharged. For example, it is possible to provide a water discharge device that can be used efficiently when a specific part is to be washed intensively or when it is desired to drain water.

[0110] In addition, the field of application of the water discharge device is not limited to bathrooms, hand-washing or kitchens. In addition, for example, when the water discharging device of the present invention is incorporated in a washing device of an automobile, showering can be performed uniformly over a wide range, and water can be discharged in a stopped state with varying force and speed. Furthermore, by incorporating such a water discharge device into a cleaning device at various industrial sites such as semiconductors, food, medicine, paper pulp, automobiles, etc., for example, semiconductor wafers, liquid crystal panel substrates, etc. In addition, various raw materials, materials and parts can be cleaned efficiently. Even in this case, electromagnetic noise that does not need to be supplied with power supply or lubricating oil does not occur, it is not affected by noise, and various effects such as hygienic and excellent maintenance are obtained. It is done.

[0111] Furthermore, the water discharger of this embodiment can also be used for stirring and mixing. For example, when water is discharged while rotating the nozzle in a state where the water discharge device of the present embodiment is submerged in the liquid tank, the liquid in the liquid tank can be stirred and mixed. In addition, stirring and mixing can be performed even when the nozzle is fixed in the liquid tank and the housing is rotated. Also in this case, the degree of stirring and mixing can be controlled by operating the speed control unit to adjust the rotation speed of the nozzle.

[0112] The embodiments of the present invention have been described with reference to specific examples. However, the present invention

However, the present invention is not limited to these specific examples.

That is, even if any one of those skilled in the art has changed the design of any element constituting the water discharge device of the present invention, it is included in the scope of the present invention as long as it has the gist of the present invention.

[0113] For example, a person skilled in the art can appropriately change the outer shape of the water discharge device and the water discharge nozzle of the water discharge device, the shape or arrangement of the speed control unit and other components, the angular range of rotation, and the like. As long as it includes the gist of the present invention, it is included in the scope of the present invention.

In addition, it is sufficient if the inlets corresponding to the left and right pressure chambers are formed with respect to the inlets. For example, a branched flow path is formed in the housing so that the inlets are connected to the inlets. Even if there is only one mouth, piping can be simplified.

Industrial applicability

According to the present invention, it is possible to perform a revolving operation using hydraulic power with a compact and simple structure, and to stop the repetitive operation according to the user's preference while discharging water, or to reduce the operation speed. It is possible to provide a water discharger that can be controlled, and there are many industrial advantages.

Claims

The scope of the claims

[1] a housing having a fan-shaped space inside;

A first water inlet for introducing a fluid into the first pressure chamber;

A second water inlet for introducing a fluid into the second pressure chamber;

A first inlet for introducing fluid from the first pressure chamber into the core flow path; a second inlet for introducing fluid from the second pressure chamber to the core flow path; A valve body for changing the opening of the first and second inlets;

When the core reaches the end on the first pressure chamber side in the rotation region, the pressure in the first pressure chamber is set higher than the pressure in the second pressure chamber, and the center When the child reaches the end on the second pressure chamber side in the rotation region, the pressure in the second pressure chamber is set higher than the pressure in the first pressure chamber. Control means for operating the valve body to change the opening of the first and second inlets;

A water discharging apparatus comprising:

[2] The rotation speed varying means is

A groove provided on the outer surface of the core;

A first state that is slidably held with respect to the housing and engages with the groove of the core and a second state that does not engage with the groove of the core are selectively formed. Possible keys,

The water discharging device according to claim 1, comprising:

[3] The rotation speed varying means is

A groove provided on the outer periphery of the water discharge cylinder,

A support fixed to the housing;

It was slidably held with respect to the support part and engaged with the groove of the water discharge cylinder. A key that can selectively form a first state and a second state that is not engaged with the groove of the water discharge cylinder,

The water discharging device according to claim 1, comprising:

4. The water discharge device according to claim 1, wherein the rotation speed varying means includes a speed control unit that gives variable sliding resistance to the water discharge cylinder.

[5] The rotation speed varying means is

A rotating shaft portion provided on the core and extending to the outside of the housing along the rotating shaft;

A speed control unit for providing variable sliding resistance to the rotating shaft part;

The water discharging device according to claim 1, comprising:

[6] The rotation speed varying means has a valve mechanism capable of blocking at least whether the fluid supplied to the first water inlet and the fluid supplied to the second water inlet are misaligned. The water discharging device according to claim 1.

[7] The rotation speed varying means is

A bypass water channel that connects the first pressure chamber and the second pressure chamber; an on-off valve that controls a flow rate of fluid flowing through the bypass water channel;

The water discharging device according to claim 1, comprising:

8. The water discharge device according to claim 7, wherein the bypass water channel is in communication with the first and second pressure chambers at both ends of the space of the housing.