JP4716177B2 - Water discharge device - Google Patents

Description

  The present invention relates to a water discharge device, and more particularly, to a water discharge device that enables an automatic reciprocating operation that repeatedly changes a water discharge position such as a shower nozzle or a water spray nozzle.

  There is a growing need for shower systems and water discharge / spraying systems for relaxation and beauty and health promotion. In these applications, for example, there is an approach that promotes a massage effect or the like by modulating a water flow at a relatively high speed of several tens of hertz or more using a swirling flow or the like. 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 to a predetermined range of the human body to promote the relaxation effect, etc. Is possible.

  Similar needs exist widely in consumer equipment, industrial or agricultural applications, and require slow reciprocating motions for a variety of purposes such as cleaning, rinsing, cooling, humidification, pretreatment, and cultivation. It is said that.

  It is possible to use electric means such as motors and solenoids for reciprocal operation, but in order to install it in a system that discharges water in a bathroom, etc., measures for securing a power source, electric shock, and electric leakage are required. There are many problems to be solved in terms of cost and reliability.

  On the other hand, if the reciprocating operation can be realized by hydraulic power, electricity and lubricating oil are unnecessary, and improvement can be expected from many viewpoints such as initial cost, running cost, reliability, and maintainability.

  A combination of a piston and a four-way valve has been disclosed as a shower device that can move up and down (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 upward / downward movement of the piston is performed by switching the water supply passage for the cylinder with a four-way valve.

However, in the case of this shower apparatus, the cylinder and the four-way valve are provided separately, and the system is large and complicated. Moreover, since the flow path becomes long, there is room for improvement in that the pressure loss is large and the water discharge force is reduced.
JP-A-2-134119

The present inventors have found that with respect to this problem, based on the novel idea, compact and simple structure, invented a water discharge apparatus capable of repetitive linear motion using hydraulic.
On the other hand, considering the actual usage of the water discharge device that enables repetitive linear motion in this way, for example, when performing a shower or a hydromassage, the repetitive operation may be stopped according to the user's preference. It is more convenient to control the operation speed.

  The present invention has been made on the basis of recognition of such a problem, and an object thereof is to provide a water discharging device capable of stopping repetitive operation according to the user's preference while controlling water discharge or controlling the operation speed. is there.

In order to achieve the above object, according to one aspect of the present invention,
A housing having a columnar space inside;
A core that is movable in the space while dividing the columnar space into first and second pressure chambers, and has a core flow path inside;
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 a fluid from the first pressure chamber into the core flow path;
A second inlet for introducing fluid from the second pressure chamber into the core flow path;
A valve body for changing the opening of the first and second inlets;
Control means for reversing the magnitude relationship between the opening degrees of the first and second inlets when reversing the moving direction of the core;
A speed control unit for providing variable sliding resistance to the water discharge cylinder;
There is provided a water discharge device characterized by comprising:
According to another aspect of the present invention,
A housing having a columnar space inside;
A core that is movable in the space while dividing the columnar space into first and second pressure chambers, and has a core flow path inside;
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 a fluid from the first pressure chamber into the core flow path;
A second inlet for introducing fluid from the second pressure chamber into the core flow path;
A valve body for changing the opening of the first and second inlets;
Control means for reversing the magnitude relationship between the opening degrees of the first and second inlets when reversing the moving direction of the core;
A valve mechanism capable of shutting off at least one of the fluid supplied to the first water inlet and the fluid supplied to the second water inlet;
There is provided a water discharge device characterized by comprising:

According to yet another aspect of the present invention,
A housing having a columnar space inside;
A core that is movable in the space while dividing the columnar space into first and second pressure chambers, and has a core flow path inside;
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 a fluid from the first pressure chamber into the core flow path;
A second inlet for introducing fluid from the second pressure chamber into the core flow path;
A valve body for changing the opening of the first and second inlets;
Control means for reversing the magnitude relationship between the opening degrees of the first and second inlets when reversing the moving direction of the core;
A bypass water channel connecting the first pressure chamber and the second pressure chamber;
An on-off valve for controlling the flow rate of the fluid flowing through the bypass channel;
There is provided a water discharge device characterized by comprising:

According to yet another aspect of the present invention,
A housing having a columnar space inside;
A core that is movable in the space while dividing the columnar space into first and second pressure chambers, and has a core flow path inside;
A water discharge cylinder that has a water discharge flow path that communicates with the flow path in the core and reaches the outside of the housing, and is provided with grooves on the outer periphery;
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 a fluid from the first pressure chamber into the core flow path;
A second inlet for introducing fluid from the second pressure chamber into the core flow path;
A valve body for changing the opening of the first and second inlets;
Control means for reversing the magnitude relationship between the opening degrees of the first and second inlets when reversing the moving direction of the core;
A support fixed to the housing;
A first state that is slidably held with respect to the support portion and is engaged with the groove of the water discharge cylinder and a second state that is not engaged with the groove of the water discharge cylinder are selected. Keys that can be formed automatically,
There is provided a water discharge device characterized by comprising:

  According to the present invention, it is possible to perform repetitive linear motion using hydraulic power with a compact and simple structure, and furthermore, it is possible to stop the repetitive motion according to the user's preference while controlling water discharge, or to control the operation speed. A water discharging device can be provided, and the industrial merit is great.

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 according to an embodiment of the present invention. That is, the same figure (a) is a front view of a water discharging apparatus, and the same figure (b) is the sectional view on the AA line.
FIG. 2 is a schematic diagram showing the water discharger according to the present embodiment together with its water supply system.

  The water discharge device 100 according to this embodiment includes a housing 102 and a water discharge cylinder 180 protruding from the housing 102. A speed controller 200 is provided so as to surround the water discharge cylinder 180 in the bearing portion of the housing that supports the water discharge cylinder 180.

  1 shows the water discharge device in which the water discharge cylinder 180 protrudes from only one side of the housing 102, but the present invention is not limited to this, and as will be described later with a specific example, the water discharge tube The body 180 may be provided on both sides of the housing 102. And the water discharge flow path 182 is provided in the water discharge cylinder 180, and the water discharge D is obtained.

As shown in FIG. 2, the housing 102 is provided with two water inlets 112 and 114. A water intake path from the water supply pipe 500 is connected to these water inlets 112 and 114 in parallel. That is, the water supply pipe 500 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. A water supply valve 600 is provided upstream of the branch position in the water supply pipe 500. The water supply valve 600 adjusts the flow rate of the fluid flowing through the water supply pipe 500.
When the water supply valve 600 provided in the water supply pipe 500 is opened, a fluid such as water is supplied to the water inlets 112 and 114 at substantially the same pressure. Accordingly, the water discharge D can be discharged from the water discharge flow path 182 while the water discharge cylinder 180 is reciprocated left and right as indicated by the arrow M. Therefore, if the housing 102 is fixed and the water discharge nozzle 800 such as 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 position changes repeatedly.
At this time, the water supply valve 600 adjusts the amount of hot water supply from a water supply hot water supply facility (not shown) such as a water supply or a water heater, and the water discharge flow rate changes according to the adjustment amount of the water supply valve 600 and the water discharge cylinder 180. When the water supply valve 600 is closed, water discharge stops and the water discharge cylinder 180 also stops reciprocating.

Then, in the present embodiment, by providing the speed control unit 200, while the water discharge, to adjust the rate of reciprocation of the water discharge tubular body 180, or at an arbitrary position can be stopped.
That is, the speed control unit 200 in this specific example includes a braking member 202 provided so as to surround the water discharge cylinder 182, a fastening member 204 surrounding the periphery thereof, and a fastening lever 206 attached to the tip of the fastening member 204. Have. The braking member 202 can be formed of rubber or soft resin, for example. The fastening member 204 is formed of an elastic material such as stainless steel or plastic, and one end is fixed to the housing 102. The tightening lever 206 is coupled to the tightening member 204 by, for example, a screw mechanism.

In a state where the tightening lever 206 is loosened, the braking member 202 is not pressed against the water discharge cylinder 180 and does not apply an excessive load to the water discharge cylinder 180. Accordingly, the water discharge cylinder 180 can freely reciprocate in the direction of the arrow M.
On the other hand, when the tightening lever 206 is rotated in the tightening direction, pressure is applied via the tightening member 204, and the braking member 202 is pressed against the water discharge cylinder 180. That is, by adjusting the rotation angle or rotation amount of the tightening lever 206, the braking force that the braking member 202 applies to the water discharge cylinder 180 can be adjusted. When the tightening lever 206 is further rotated, the braking member 202 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 206 while discharging water, the speed of the reciprocating motion of the water discharging cylinder 180 can be adjusted to a desired size and can be stopped at a desired position.

  Note that the mechanism of the speed control unit 200 shown in FIG. 1 is merely an example, and modifications of the shape, size, material, arrangement relationship, etc. of the braking member 202, the fastening member 204, and the fastening lever 206 are also included in the present invention. Included in the range. That is, any braking force or sliding resistance may be given to the reciprocating motion of the water discharge cylinder 180, and the magnitude of the braking force or sliding resistance may be variable.

  Hereinafter, the operation mechanism and structure of the water discharge device 100 in the present embodiment will be described in detail.

FIG. 3 to FIG. 6 are schematic diagrams for explaining the operation mechanism of the water discharge device of the present embodiment. In these drawings, the speed control unit 200 is omitted for convenience of explanation.
The water discharge device 100 includes a core 120 that is movably provided in the housing 102. The interior of the housing 102 is divided into two pressure chambers 116 and 118 by a core 120. The core 120 has a hollow structure, and the hollow space constitutes an in-core flow path 124 that communicates with a water discharge flow path 182 provided in the water discharge cylinder 180. Further, the core inner flow path 124 communicates with the pressure chambers 116 and 118 via the inlet ports 132 and 134, respectively.

  The core 120 is provided with valve bodies 142 and 144 for changing the opening degree of the introduction ports 132 and 134. The core 120 is provided with control means for controlling the valve bodies 142 and 144. By providing a difference in the opening degree of the inlets 132 and 134 by the control means, the flow resistances of the left and right flow paths from the water inlet to the core internal flow path 124 are made different, whereby the left and right pressure chambers 116 and 118 are made different. The core 120 can be moved using the pressure difference generated in In the state shown in FIG. 3, the control means urges the valve bodies 142 and 144 to the right end, and the water inlet 134 is opened on the right side of the core 120. Therefore, the water supplied from the water inlet 114 flows into the core inner passage 124 from the pressure chamber 118 through the path indicated by the arrow C, and flows through the water discharge passage 182 provided in the water discharge cylinder 180. And flows out as shown by arrow D. On the other hand, since the water supplied from the water inlet 112 of the housing has no outflow path, the pressure in the pressure chamber 116 rises higher than the pressure in the pressure chamber 118. As a result, the core 120 moves in the direction of the arrow M.

FIG. 7 is a schematic diagram for explaining the effect of providing a difference in the opening degree of the inlets 132 and 134.
That is, as illustrated in FIG. 7A, when the valve bodies 142 and 144 are in a neutral state and the opening degree of the introduction ports 132 and 134 is substantially the same, the introduction ports 132 and 134 are interposed. Since the flow resistances of the flow paths are almost the same, there is no pressure difference between the left and right of the core 120. Therefore, the core 120 does not move unless some external force is applied.

  On the other hand, as illustrated in FIG. 7B, when the valve bodies 142 and 144 are out of the neutral state and the opening of the inlets 132 and 134 is different, the flow resistance is also different. Therefore, a pressure difference is generated between the left and right of the core 120.

In the present specification, the “opening degree” of the inlet is a parameter that determines the flow path resistance of the water flowing between the inlet and the valve body. For example, in the state shown in FIG. 7 (b), the flow path resistance of the flow path formed between the inlet 132 and the valve body 142 is formed between the inlet 134 and the valve body 144 It is higher than the channel resistance of the channel. In this case, the opening degree of the introduction port 132 is smaller than the opening degree of the introduction port 134.
In the case of the example shown in FIG. 7 (b), also the opening of introducing port 134 is larger than the opening degree of the inlet 132, towards the passage through the inlet port 132 is the channel resistance increases. As a result, the pressure on the left side of the core 120 is higher than that on the right side. That is, force due to the pressure difference acts on the core 120 and the valve body 142, respectively.

Therefore, when the force applied to the core 120 exceeds the sliding resistance of the core 120, the core 120 moves to the right side. On the other hand, since the valve body 142 is moved movable relative core 120, when the force exerted on the valve body 142 exceeds the sliding resistance of the valve body 142 is relatively valve body 142 relative to core 120 Move to the right. When the valve element 142 moves to the right side, the flow path resistance through the inlet 132 becomes higher and the pressure difference increases. That is, each force applied to the core 120 and the valve 142 increases, and the movement of the core 120 and the valve body 142 is promoted.
Finally, as shown in FIG. 7C, the inlet 132 is fully closed. At this time, the difference between the left and right flow path resistances is the largest, and a force corresponding to the maximum pressure difference acts on the core 120 and the valve body 142, respectively.

  As described above, in order to move the core 120 in the water discharge device of the present invention, a difference in the opening degree of the inlets 132 and 134 may be provided to generate a pressure difference necessary for movement. At this time, by setting one of the introduction ports in an open state and the other in a closed state, the maximum pressure difference is obtained, and the most reliable and stable moving force is obtained.

  Returning to FIG. 4 again and continuing the explanation, when the core 120 moves in the housing 102 to the right end or near the right end of the movement stroke as shown in the figure, the valve bodies 142 and 144 are controlled by the control means. Move to the left. Then, the right inlet 134 of the core 120 is closed and the left inlet 132 is opened. In this state, the water supplied from the water inlet 112 flows from the pressure chamber 116 through the inlet 132 into the core inner passage 124 as indicated by the arrow C, and is indicated by the arrow D. As shown in FIG. On the other hand, since the water supplied from the water inlet 114 has no outflow path, the pressure in the pressure chamber 118 rises. As a result, the core 120 moves to the left as shown by the arrow M in FIGS.

  When the core 120 continues to move to the left and reaches the left end or the vicinity of the left end of the housing 102 as shown in FIG. 6, the valve bodies 142 and 144 move to the right under the control of the control means. Then, as described above with reference to FIG. 3, the left inlet 132 of the core 120 is closed and the right inlet 134 is opened. As a result, the pressure in the pressure chamber 118 decreases, the pressure in the pressure chamber 116 increases, and the core 120 moves to the right as indicated by the arrow M. Thereafter, by repeating the operation described above with reference to FIGS. 3 to 6, the core 120 continues to move repeatedly left and right in the housing 102.

  Hereinafter, the structure of the water discharging apparatus 100 of this embodiment is demonstrated in detail, referring a specific example.

FIG. 8 thru | or FIG. 11 is a schematic diagram showing the principal part of the water discharging apparatus 100 of this embodiment. That is, FIG. 8 is a perspective view of the water discharging apparatus of this example, FIG. 9 is a perspective cutaway view, FIG. 10 is a cross-sectional view, and FIG. 11 is a cross-sectional view taken along line AA in FIG. In these drawings, the speed control unit 200 is omitted for convenience of explanation.
The water discharge device 100 of this specific example has an example in which a water discharge cylinder 180 protrudes from a housing 102 formed by a housing main body 103 and a housing lid 104. The water discharge cylinder 180 has a hollow structure having a water discharge flow path 182 inside, and is open at the tip. In addition, the water discharging cylinder 180 does not necessarily need to be a columnar shape, and can give various shapes, such as a prismatic shape and a flat shape.
When a fluid such as water is introduced into the water inlets 112 and 114 provided in the housing main body 103, the water discharge cylinder 180 discharges water while reciprocating linearly in the direction of the arrow M.

  The inner structure will be described. As shown in FIGS. 9 to 11, a core composed of a core body 121 and a core lid 122 is formed in a cylinder space of the housing 102 formed by the housing body 103 and the housing lid 104. 120 is movably accommodated. The core 120 is connected to a water discharge cylinder 180 protruding from the housing 102, and moves inside the housing into a first pressure chamber 116 and a second pressure chamber 118 like a piston. Fluid such as water is introduced into the pressure chambers 116 and 118 from the water inlets 112 and 114, respectively. A seal 126 is provided at a sliding portion between the core 120 and the inner wall of the housing 102 for smooth sliding while maintaining liquid tightness. In addition, a seal 184 is provided at the sliding portion between the water discharge cylinder 180 and the housing 102 for the same purpose. These seals 126 and 184 are made of a material that keeps fluid tightness and smooth sliding. For example, Teflon (registered trademark), NBR (nitrile rubber), EPDM (ethylene propylene rubber), and POM (polyacetal). Etc. can be used. Note that “liquid-tight” as used herein only needs to ensure a state sufficient to cause a pressure difference between the left and right pressure chambers.

Next, the structure of the core 120 will be described.
A core inner flow path 124 is formed by combining the core lid 121 with the core main body 121, and the core inner flow path 124 communicates with the water discharge flow path 182 provided in the water discharge cylinder 180. . The core main body 121 and the core lid 122 are provided with inlets 132 and 134 that allow the core inner flow path 124 and the pressure chambers 116 and 118 to communicate with each other.

In this specific example, a leaf spring and a slide bar are provided in the core 120 as control means.
That is, a core inner passage 124 is formed by combining the core lid 121 with the core main body 121, and the core inner passage 124 is connected to the water discharge passage 182 provided in the right and left water discharge cylinders 180. Communicate. The core main body 121 and the core lid 122 are provided with inlets 132 and 134 that allow the core inner flow path 124 and the pressure chambers 116 and 118 to communicate with each other. Then, main valves 142 and 144 and slide bars 146 and 148 are provided so as to cross the core inner flow path 124.

FIG. 12 is a perspective view showing the main valve and the slide bar.
The left and right main valves 142 and 144 are connected by a connecting rod 149 and are installed so as to move 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 as valve bodies are installed to be movable left and right with a predetermined stroke with respect to the core body 121. Ribs 143 are formed on the main valves 142 and 144, and the main valves 142 and 144 are configured to move coaxially with the introduction ports 132 and 134. When the main valves 142 and 144 move away from the core 120, the groove portions 145 provided between the ribs 143 serve as openings of the inlets 132 and 134 to form a fluid flow path. Then, slide bars 146 and 148 that pass through the main valves 142 and 144 coaxially are installed so as to be movable left and right. That is, the slide bars 146 and 148 are installed so as to be movable to the left and right with a stroke longer than the operation stroke of the main valves 142 and 144.

As illustrated in FIGS. 9 to 11, when the main valve 144 moves away from the core body 121, the introduction port 134 is opened. On the other hand, when the main valve 142 moves away from the core lid 122, the introduction port 132 is opened.
These inlets 132 and 134 are both in communication with the core inner channel 124. That is, the introduction port 132 communicates the pressure chamber 116 in the housing and the core inner flow path 124, and the introduction port 134 communicates the pressure chamber 118 and the core inner flow path 124.

  And the operation | movement of the main valves 142 and 144 which change the opening degree of these inlet ports 132 and 134 is determined by the slide bars 146 and 148 installed coaxially. That is, as shown in FIG. 11, the left and right slide bars 146 and 148 are connected with the compressed leaf spring 160 interposed therebetween, and receive a biasing force toward the right end or the left end depending on the bending direction of the leaf spring 160. . The leaf spring 160 is supported at both ends by the core body 121, and the slide bars 146 and 148 move relative to the core body 121 via the leaf spring 160. The main valves 142 and 144 receive this urging force from the slide bars 146 and 148 to place the introduction ports 132 and 134 in an alternative state of a fully open state or a fully closed state. That is, the slide bars 146 and 148 and the leaf spring 160 act as control means, and control the main valves 142 and 144 which are valve bodies.

Hereinafter, the operation of the water discharging apparatus of this specific example will be described.
FIG. 13 is a schematic diagram illustrating the reciprocating operation of the water discharging device of this example.
That is, FIG. 6A shows a state in which the slide bars 146 and 148 are urged toward the right side by the action of the leaf spring 160. At this time, the main valves 142 and 144 are also urged toward the right side by the slide bar 146, so that the inlet 132 is closed and the inlet 134 is opened.

In this state, when a fluid such as water is supplied to the water inlets 112 and 114 at substantially the same pressure, the water introduced into the pressure chamber 118 from the water inlet 114 as shown by the arrow B is introduced as shown by the arrow C. It flows into the core inner channel 124 from the port 134 and flows out as shown by the arrow D through the water discharge channel 182 communicating with the left and right.
In contrast, the water introduced into the pressure chamber 116 from the water inlet port 112 as shown by arrow A has no outflow path for introducing port 132 is closed, thereby increasing the pressure in the pressure chamber 116.
That is, by providing a difference in the opening degree of the inlets 132 and 134, a difference occurs in the flow path resistance, resulting in a pressure difference. As a result, the pressure in the pressure chamber 116 becomes higher than that in the pressure chamber 118, and the core 120 is pushed and moved in the direction of the arrow M.

  When the core 120 moves 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 fluid in the pressure chamber 118 is pushed out by the amount of the fluid flowing into the pressure chamber 116 along the path indicated by the arrow A, and is included in the water discharge amount of the fluid flowing out from the flow path 182.

When the core 120 continues to move further in the direction of the arrow M from the state shown in FIG. 13A and the slide bar 148 comes into contact with the inner wall of the housing main body 103 and is pressed against the core, the leaf spring 160 The bending direction is reversed, and as shown in FIG. 13B, the slide bars 146 and 148 are urged toward the left side. Then, when the slide bar 148 pushes the main valve 144, the main valves 142 and 144 also move to the left. That is, the introduction port 132 is opened and the introduction port 134 is closed.
In the state shown in FIG. 13 (b), fluid introduced into the pressure chamber 116 from the water inlet port 112 as shown by arrow A, as shown by arrow C, the core inner channel from the inlet 132 124 and flows out through the water discharge channel 182 as indicated by the arrow D. In contrast, as shown by arrow B, the fluid introduced from water inlet port 114 into pressure chamber 118 does not flow out path for introducing port 134 is closed, thereby increasing the pressure in the pressure chamber 118. As a result, a pressure difference is generated in the pressure chambers 116 and 118, and the core 120 starts moving toward the left side as indicated by an arrow M.

  When the core 120 continues to move, the slide bar 146 moves to a position where it abuts against the inner wall of the housing lid 104 as shown in FIG. When the core 120 further moves from this state and the slide bar 146 is pushed against the core 120, the bending direction of the leaf spring 160 is reversed and urged to the right side. Then, similarly to the state shown in FIG. 13A, the introduction port 132 is closed and the introduction port 134 is opened, and the core 120 starts moving toward the right side.

  As described above, according to the present specific example, the core 120 is provided with the main valves 142 and 144 as the valve bodies, and the control means including the slide bars 146 and 148 and the leaf spring 160, so that the core 120 Depending on the movement, the magnitude relationship of the opening degree difference between the inlets 132 and 134 can be reversed as appropriate, and the core 120 can be operated repeatedly left and right. The stroke of the reciprocating motion of the core 120 in this specific example can be set as appropriate depending on the length of the housing body 103 and the thickness (width) of the core 120.

Next, the operation of the control means in this example will be described in more detail.
FIG. 14 is a schematic diagram for explaining the operation of the control means in the present embodiment.
That is, FIG. 4A shows a state in which the leaf spring 160 is bent to the right side and biases the slide bars 146 and 148 in this direction. At this time, the introduction port 132 is closed by the main valve 142 and the introduction port 134 is opened by the main valve 144.
When the core 120 moves to the right in this state, the slide bar 148 comes into contact with the inner wall of the housing as shown in FIG. Because the core 120 is working pressure difference, the slide bar 148 in contact with the inner wall of the housing, core 120 moves further to the right, a state represented in FIG. 14 (b). That is, the relative position between the core 120 and the slide bar 148 is changed by overcoming the biasing 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 pushed and deformed to the left side to be in a substantially S-shaped state as illustrated in FIG. At this time, a pressure difference acts on the main valves 142 and 144 similarly to the core 120, and the open / close state of the inlets 132 and 134 is not changed.

  Thereafter, when the core 120 is further moved and the slide bar 148 is further pushed against the core 120, the bending direction of the leaf spring 160 is reversed to the left as shown in FIG. Start and bias slide bars 146, 148 to the left.

  Then, as shown in FIG. 14D, the main valves 142 and 144 are moved to the left side by the urging force of the leaf spring 160, the introduction port 132 is fully opened, and the introduction port 134 is fully closed.

  As described above, in this specific example, the direction of bending of the compressed leaf spring 160 is appropriately reversed by the slide bars 146 and 148, and the main valves 142 and 144 are operated by using the biasing force, thereby introducing the inlet port. Alternatively, 132 and 134 are controlled to be either fully open or fully closed. That is, by using the urging 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.

  The mechanism of this example that controls the main valves 142 and 144 via the slide bars 146 and 148 has an extremely important role in the smooth operation of the water discharge device of this example. That is, the compressed leaf spring 160 is in a stable state when bent to the right or left side, but as shown in FIG. 14B, it becomes a quasi-stable neutral state near the middle of these stable states. There is. That is, 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 introduction ports 132 and 134 becomes substantially the same, the fluid flows from the introduction ports 132 and 134 on both sides of the core, so that there is no pressure difference, and the movement of the core 120 occurs. Will stop. That is, if the timing of starting the operation of the main valves 142 and 144 is earlier than the timing of reversal of the leaf spring 160, the operation of the core 120 may stop.

  On the other hand, according to this example, the main valves 142 and 144 are provided in the metastable neutral state as shown in FIG. 14B by providing the slide bars 146 and 148 and adjusting the strokes as appropriate. Is still not moved, and the core 120 is kept under pressure by applying pressure. 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 operation 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 move the core 120 disappears, and the main valves 142 and 144 are moved via the slide bars 146 and 148 by the reversal force (biasing force), The opening difference between the introduction ports 132 and 134 can be reversed to an opening difference sufficient to move the core 120 in the reverse direction.

  In this way, it is possible to solve the problem that the opening degree of the introduction ports 132 and 134 becomes substantially equal when the leaf spring 160 is in a neutral state, and the core 120 stops, and smooth repetitive motion can be realized. .

  In this way, even when the core 120 starts water discharge from a state where the core 120 is stopped near the middle of its movement stroke, the main valves 142 and 144 are controlled by the leaf spring 160 at the time of water discharge start. Thus, one of the introduction ports 132 and 134 is alternatively open, and a pressure difference is formed on both sides of the core 120 to start a stable initial operation. That is, the state where the opening degree of the introduction port 134 is larger than the opening degree of the introduction port 132 and the state where the opening degree of the introduction port 132 is larger than the opening degree of the introduction port 134 can be held alternatively. can do.

  As described above, in this specific example, the moving direction of the core 120, the movable direction of the main valves 142 and 144, the movable direction of the slide bars 146 and 148, and the biasing direction of the leaf spring 160 are substantially the same. Thus, there is no waste in the way the force works, the moving force of the core having a large pressure receiving area can be used effectively, and a smooth and stable operation is possible. That is, a control operation for reversing the magnitude relationship between the opening degrees of the introduction ports 132 and 134 for reversing the core 120 by linking the movement operation of the core 120 and the opening degree control operation is reliable and easy. And a simple and compact valve body and control means.

  8 to 14, 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 bars 146 and 148, while a magnet is provided on the inner wall of the housing, and the slide bars 146 and 148 are stopped relative to the housing by utilizing a repulsive force acting between them. It is also possible. That is, in this case, in the state corresponding to FIGS. 14A to 14C, the slide bars 146 and 148 do not contact the inner wall of the housing 102, and the repulsive force of the magnet (not shown) causes the housing 102 to It will be in the state away from the inner wall by a predetermined distance. In this way, the core 120 can be reversed without contact.

  On the other hand, in the present embodiment, the thrust obtained in the reciprocating linear motion is determined by the product of the pressure of the fluid loaded on 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.

  1 to 14 show specific examples in which the circular core 120 is accommodated in a substantially cylindrical space provided in the housing, but the present invention is not limited to this. For example, the internal space of the housing main body 103 may be a prismatic shape or a flat columnar shape, and the core 120 can have various shapes according to these shapes.

  Moreover, the outer peripheral shape of the water discharge cylinder 180 does not need to be circular, and may be a polygonal shape or a flat shape. Furthermore, the water discharge cylinder 180 does not need to be provided at the center of the core 120 and may be provided eccentric from the center of the core 120. If it does in this way, size reduction of the core 120 is easy and the water discharging apparatus 100 can be reduced in size.

  In addition, when the housing inner space is formed in a columnar shape and the water discharge cylindrical body 180 is provided at the center of the cylindrical core 120 as in this specific example, the water discharge cylindrical body 180 can be rotated. That is, when a nozzle or a shower head is provided at the tip of the water discharge cylinder 180, the water discharge position can be repeatedly changed by the reciprocating linear motion of the core 120, and at the same time, the nozzle and the shower head are rotated. It is also possible to change the direction of water discharge.

  For example, there are cases where it is desired to change the angle of the nozzle or shower head according to the user's preference. Even in such a case, if the water discharge cylinder 180 can be rotated, the water discharge direction of the nozzles and the shower head can be adjusted to the optimum direction on site, which is excellent in usability.

  By the way, in the present invention, in addition to a method using a leaf spring and a slide bar as a control means for reversing the magnitude relationship of the opening degree of the introduction ports 132 and 134 for reversing the core 120, for example, There is also a method using a magnet.

FIG. 15 is a schematic diagram for explaining a mechanism for controlling the reversing operation of the core 120 by a magnet.
That is, FIG. 15A shows a state in which the core 120 moves from the left side toward the right side and the valve body 144 is in contact with the inner wall of the housing body 103. In this specific example, the core 120 is provided with a magnet 170, and the housing 102 is provided with a magnet (or ferromagnetic material) 174. In the state of FIG. 15A, the force due to the pressure difference acts on the core 120, so the core 120 moves further to the right. That is, the core 120 further moves to the right side in a state where the valve body 144 is in contact with the housing 102 and fixed in the moving direction.

  Finally, the state shown in FIG. 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 magnet 170 and the magnet (or ferromagnetic body) 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. In such a case, it is desirable to pull the core 120 by an attractive force acting between the magnet 170 and the magnet (or ferromagnetic body) 174 in the state between FIG. 15A and FIG. .

  Now, when the core 120 is drawn to the right side by the attractive force of the magnet from the state shown in FIG. 15B, the opening degree of the introduction port 132 is larger than the opening degree of the introduction port 134 as shown in FIG. A large state is formed. Then, a difference occurs in the flow path resistance of these inlets 132 and 134, and a pressure difference is generated. 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 relationship of the opening degree difference between the introduction ports 132 and 134.

  At this time, as described above with reference to FIG. 7, the pressure difference also acts on the valve body 144, and a force in the direction of closing the valve body 144 acts. As a result, as shown in FIG. 15D, the valve body 144 is completely closed, and the pressure on the right side of the core 120 rises 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 drawn to the state shown in FIG. 15C by the attractive force acting between the magnet 170 and the magnet (or ferromagnetic body) 174, the inlets 132 and 134 are introduced. The magnitude relationship of the opening degree difference can be reversed, and the core 120 can be reversed. That is, the core 120 can be reciprocated linearly in the housing 102.

  In this case, it is necessary that the core 120 moves by overcoming the attractive force of the magnet after the reversal. That is, 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.

  Further, in the case of the specific example shown in FIG. 15, the surfaces of the valve bodies 142 and 144 (contact surfaces with the housing 102) protrude in a curved shape so that a gap is generated even in a state of 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 so that the degree of opening is reversed.

  Further, in the specific example shown in FIG. 15, the valve bodies 142 and 144 are brought into contact with the inner wall of the housing 102 when the core 120 is reversed, but the present invention is not limited to this. For example, magnets are provided on the valve bodies 142 and 144, while magnets are also provided on the inner wall of the housing 102, and the valve bodies 142 and 144 are relatively moved relative to the housing 2 by utilizing a repulsive force acting between them. It can also be stopped. That is, in this case, in the state corresponding to FIGS. 15A to 15C, the valve bodies 142 and 144 do not contact the inner wall of the housing 102, and the repulsive force of the magnet (not shown) causes the housing 102 to It will be in the state away from the inner wall by a predetermined distance. In this way, the core can be reversed without contact.

  As described above, in order to move the core 120, a difference in the opening degree of the introduction ports 132 and 134 may be provided to generate a pressure difference necessary for movement. Similarly, when the moving 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.

  According to the present embodiment, the core 120 accommodated in the housing 102 is provided with the valve bodies 142 and 144 and the control means, and the core 120 can be reciprocated by supplying water to the pressure chambers on both sides. At this time, by making the moving direction of the core 120 and the moving directions of the valve bodies 142 and 144 substantially the same, the moving operation of the core 120 and the opening degree control operation are linked, and the core 120 is reversed. The valve body reversing operation of reversing the magnitude relationship of the opening degree of the inlets 132 and 134 is made reliable and easy, and a simple and compact valve body and control means are realized.

  According to the present invention, mechanical power such as electricity is not required, and smooth reciprocal reversal motion is possible only with supply pressure of water or the like, and measures such as installation of a power source, electric shock, or electric leakage are not required. In addition, smooth operation is possible without being affected by disturbances such as electromagnetic noise. And by providing the speed control part 200, the speed of the reciprocal reversal motion can be adjusted while discharging water, and can be stopped at an arbitrary position.

  Furthermore, since the water discharging device of the present invention is provided with the valve bodies 142 and 144 and the control means attached to the core 120, for example, an external four-way valve or the like is not necessary, and the smooth structure is simple. Reciprocal reversal motion can be realized. As a result, downsizing becomes easy and the flow path becomes simple, so that pressure loss can be suppressed, and it is advantageous in that a water discharge amount and water discharge pressure can be secured. Further, since the valve bodies 142 and 144 and the control means are built in the housing 102, a smooth operation strong against disturbance can be realized. As a result, the present invention can be applied not only to a bathroom or a hand washing place, but also to a watering device installed outdoors and the like, thereby enabling a stable cooling / washing operation.

In addition, regarding water supply, it is only necessary to branch from the same water supply source and connect to two water inlets, and the workability is excellent.
Furthermore, since the flow path of the water is formed inside the moving core and the water discharge cylinder, it is possible to reciprocate the water spray position simply by connecting various water spray parts to the tip of the water discharge cylinder. Also, it is excellent in workability in that no special connecting member is required.
In particular, the water discharge device of the present invention is advantageous in that it is excellent in workability even when it is installed “retrofitting” on existing equipment indoors or outdoors.

FIG. 16 is a schematic cross-sectional view showing a modification of the water discharging device of this example.
In this figure, the same elements as those described above with reference to FIGS. 1 to 15 are denoted by the same reference numerals, and detailed description thereof is omitted.
In this modification, water discharge cylinders 180 are provided on both sides of the core 120. That is, the water discharge cylinder 180 protrudes from both sides of the housing 102. The pair of water discharge cylinders 180 reciprocate synchronously in the same direction while discharging water. This modification is particularly convenient when it is desired to obtain water discharge from both ends.

The operation and structure of the water discharge device of this embodiment have been described above.
Hereinafter, another specific example of the speed control unit 200 that can be provided in the water discharge device of the present embodiment will be described.

FIGS. 17 to 20 are schematic cross-sectional views showing a second specific example of the speed control unit 200 that can be provided in the water discharging device of the present embodiment.
In the case of this specific example, the three-way valve 210 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 210 is connected to a hydraulic cuff 214 via a water passage 212. On the other hand, the second branch of the three-way valve 210 is connected to the discharge pipe 216. The hydraulic cuff 214 is made of an elastic material such as rubber or resin, and has a donut-shaped bag shape surrounding the water discharge cylinder 180.

  As shown in FIG. 17, in a state where the three-way valve 210 is switched and the water passage 212 and the discharge pipe 216 communicate with each other, the hydraulic cuff 214 is contracted without being pressurized. In this state, the hydraulic cuff 214 does not substantially apply a braking force or sliding resistance to the water discharge cylinder 180, and the water discharge cylinder 180 can freely reciprocate.

  On the other hand, as shown in FIG. 18, in a state where the three-way valve 210 is switched and the water supply pipe 500 communicates with the water passage 212, water is supplied to the hydraulic cuff 214 and the internal water pressure rises. Then, the hydraulic cuff 214 swells and applies a braking force or sliding resistance to the water discharge cylinder 180. The braking force or sliding resistance applied by the water pressure cuff 214 to the water discharge cylinder 180 can be adjusted by the water pressure applied to the water pressure cuff 214. That is, the speed of the water discharge cylinder 180 can be adjusted by the water pressure applied to the water pressure cuff 214.

  Accordingly, when the water pressure of the water pressure cuff 214 increases and the speed of the water discharge cylinder 180 decreases to a target level, for example, as shown in FIG. 19, the water passage 212 is blocked and the water pressure is maintained. Good.

Moreover, if the state which connected the water supply pipe | tube 500 and the water flow path 212 is maintained as represented to FIG. 18, the water pressure of the water pressure cuff 214 will rise to the maximum level. At this time, the size and material of the hydraulic cuff 214 may be appropriately selected so that the water discharge cylinder 180 stops.
Actually, when the three-way valve 210 is switched to connect the water supply pipe 500 and the water passage 212 as shown in FIG. 18, the water pressure of the water pressure cuff 214 may reach the maximum level in a very short time. Many. That is, when the three-way valve 210 is fully opened as shown in FIG. 18, the water pressure of the water pressure cuff 214 is instantaneously increased and the water discharge cylinder 180 is immediately stopped.
On the other hand, when it is desired to adjust the speed of the water discharge cylinder 180, the opening of the three-way valve 210 is adjusted while the water supply pipe 500 and the water passage 212 are communicated as shown in FIG. Apply the water pressure. And if it falls to the target speed level, as shown in FIG. 19, you may make it block the water flow path 212 and maintain the water pressure. In this way, it is possible to adjust or stop the speed while discharging water.

FIG. 21 is a schematic cross-sectional view illustrating a third specific example of the speed control unit 200 that can be provided in the water discharge device of the present embodiment.
In the case of this specific example, on-off valves 220 and 222 are provided in water channels from the water supply pipe 500 to the water inlets 112 and 114, respectively. By appropriately operating these on-off valves 220 and 222, the speed of the water discharge cylinder 180 can be adjusted or stopped at an arbitrary position.

Hereinafter, the operation of the water discharging apparatus of this specific example will be described with reference to FIG.
First, when performing a normal reciprocating motion, both the on-off valves 220 and 222 are opened.
On the other hand, when the water discharge cylinder 180 is stopped, one of the on-off valves 220 and 222 is closed.
For example, when the water discharge tubular body 180 is moved to the right side as shown in FIG. 13 (a), by closing the shutoff valve 220 to shut off the supply of water from the water inlet 112. Then, the supply of water to the pressure chamber 116 is stopped and the pressure does not increase, so that the movement of the core 120 stops. Then, the water supplied from the water inlet 114 through the pressure chamber 118 and the inlet 134 continues to be discharged from the water discharge channel 182. That is, water discharge cylinder 180 can be stopped at an arbitrary position and water discharge can be continued.

  Thus, in this specific example, by closing the on-off valve on the side opposite to the traveling direction of the water discharge cylinder 180 among the on-off valves 220 and 222, the water discharge cylinder 180 can be stopped at that position. .

On the other hand, when the on-off valve on the side of the direction of travel of the water discharge cylinder 180 is closed, the water discharge cylinder 180 can be stopped at the stroke end.
For example, when the water discharge tubular body 180 as shown in FIG. 13 (a) has moved to the right side, close the shutoff valve 222 to shut off the supply of water from the water inlet 114. Then, the water supply cylinder 180 continues to move to the right side due to the supply of water from the water inlet 112, contacts the right inner wall of the housing 102 as shown in FIG. 13B, the main valve 142 opens, and the main valve 144 switches to a closed state. However, since water is not supplied from the water inlet 114 in this state, the core 120 (water discharge cylinder 180) remains stopped. Then, water supplied from the water inlet 112 is continuously discharged from the water discharge channel 182. That is, the water discharge cylinder 180 can be moved to the stroke end and stopped to continue water discharge.

22 to 25 are schematic cross-sectional views showing a fourth specific example of the speed control unit 200 that can be provided in the water discharge device of the present embodiment.
In the case of this specific example, a three-way valve 224 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 224, control similar to that described above with respect to the third specific example can be realized.
As shown in FIG. 22, when water is supplied from the water supply pipe 500 to the water inlets 112 and 114, normal reciprocating motion is executed.
On the other hand, as shown in FIGS. 23 and 24, when the three-way valve 224 is switched and water is supplied to only one of the water inlets 112 and 114, the water discharge cylinder 180 stops.
For example, when the water discharge cylinder 180 moves to the left as shown in FIG. 22, the three-way valve 224 is switched as shown in FIG. 23 to shut off the water supply to the water inlet 114. Water is supplied only to the water inlet 112. Then, as described above with respect to the third specific example, the water discharge cylinder 180 stops at that position and continues water discharge.
That is, also in this specific example, by switching the three-way valve 224 and shutting off the water supply to the water inlet 112, 114 to the water inlet opposite to the traveling direction of the water discharge cylinder 180, The water discharge cylinder 180 can be stopped at the position.

  On the other hand, as shown in FIG. 24, when the three-way valve 224 is switched to shut off the water supply to the water inlet on the traveling direction side of the water discharge cylinder 180, the water discharge cylinder 180 continues to move as it is at the stroke end. Stop and continue water discharge.

  On the other hand, in this specific example, by operating the three-way valve 224, it is easy to completely shut off the water supply to the water inlets 112 and 114 as shown in FIG. That is, the operation of the three-way valve 224 is convenient because water discharge can be stopped immediately. That is, the three-way valve 224 can serve as the water supply valve 600 as shown in FIG. Thereby, when it is not necessary to adjust the flow rate of water and only the presence or absence of water supply is to be controlled, the water supply valve can be omitted.

FIG. 26 is a schematic cross-sectional view illustrating a fifth specific example of the speed control unit 200 that can be provided in the water discharge device of the present embodiment.
In the case of this specific example, a bypass water channel 230 is provided to connect the pressure chambers 116 and 118 formed on the left and right sides of the core 120. An open / close valve 232 is provided in the bypass water channel 230. By operating this on-off valve 232, the water discharge cylinder 180 can be stopped or the speed can be adjusted.

  That is, when the on-off valve 232 is opened and the left and right pressure chambers 116 and 118 are connected by the bypass water channel 230, water is bypassed from the pressure chamber whose volume should be expanded toward the pressure chamber whose volume should be decreased. For example, as shown in FIG. 26, when the on-off valve 232 is opened while the water discharge cylinder 180 is moving to the left side, the water supplied from the water inlet 114 to the pressure chamber 118 is pressurized via the bypass water channel 230. Bypassed to chamber 116. As a result, a sufficient pressure difference does not occur between the left and right of the core 120, and the core 120, that is, the water discharge cylinder 180 stops. At this time, since the main valve 142 remains open, water discharge continues and the water discharge flow rate hardly changes. That is, the water discharge cylinder 180 can be stopped at an arbitrary position while maintaining water discharge.

  On the other hand, when the opening degree of the on-off valve 232 is adjusted, the moving speed of the water discharge cylinder 180 can be adjusted. That is, when the bypass amount of the water flow through the bypass water channel 230 is small, the speed of the water discharge cylinder 180 is increased, and when the bypass amount of the water flow through the bypass water channel 230 is large, the speed of the water discharge cylinder 180 is increased. Becomes smaller. Therefore, the speed of the water discharge cylinder 180 can be adjusted by adjusting the opening degree of the on-off valve 232.

  In the case of this specific example, the water discharge cylinder 180 can be stopped and the speed can be controlled with one on-off valve 232 regardless of the moving direction of the water discharge cylinder 180. In addition, since the flow path 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 path does not change, and the total water discharge flow rate is always substantially constant during normal operation, when stopped, and during deceleration. Can be maintained.

  The bypass water channel 230 is preferably communicated with the pressure chambers 116 and 118 at both ends of the internal space of the housing 102. That is, even when the core 120 is at the left and right stroke ends, it is desirable to form the opening of the bypass water channel 230 as close to the end of the housing 102 as possible so that the bypass water channel 230 is not blocked.

FIG.27 and FIG.28 is a schematic cross section showing the specific example of the stop mechanism 300 which can be provided in the water discharging apparatus of this embodiment.
That is, in this specific example, the water discharge cylinder 180 is provided with a groove 304. On the other hand, a key 302 having a groove surface engaged with the groove 304 is slidably held by the support portion 306. The support portion 306 is fixed to the housing 102. Key 302, in a state where the slide upward as shown in FIG. 27, the groove 304 does not engage, engage the groove 304 in a state of being slid downward as shown in FIG. 28. The vertical position of these keys 302 can be defined by a latch mechanism 308 using a leaf spring, for example.

  In the state where the key 302 is not engaged with the groove 304 as shown in FIG. 27, the water discharge cylinder 180 can move freely. On the other hand, as shown in FIG. 28, in the state where the key 302 is engaged with the groove 304, the water discharge cylinder 180 is fixed and stopped. That is, by sliding the key 302 downward and engaging the groove 304, the water discharge cylinder 180 can be stopped at an arbitrary position. Also in this case, water discharge from the water discharge flow path 182 is continued.

  According to this specific example, the water discharge cylinder 180 can be reliably stopped at a preferred position with a simple mechanism while water is discharged.

  The water discharging device of the present invention has been described above with reference to specific examples. These water dischargers can be combined with various nozzle parts. Hereinafter, some specific examples of the water discharging device of the present invention combined with the nozzle portion will be described.

FIG. 29 is a schematic diagram illustrating a first specific example of the water discharging device of the present invention in combination with a nozzle portion. That is, in this specific example, the water discharge device 100 described above with reference to FIG. 16 is provided. Water discharge cylinders 180 protrude from both sides of the housing, and water discharge nozzles 810 are attached to the respective tips. When the water discharge cylinder 180 reciprocates linearly in the direction indicated by the arrow M, the water discharge nozzle 810 also moves reciprocally in accordance with this and the water discharge position fluctuates periodically.
The speed control unit 200 or the stop mechanism 300 described above with reference to FIGS. 1 to 28 is provided.

  For example, when such a water discharge device is installed on a wall surface 900 such as a bathroom and water is applied to a user's shoulder or the like, the water discharge position changes periodically. In addition, it is not necessary for the user to shake the body to change the site of action, and the feeling of use is improved. Moreover, it is also possible to obtain a relaxation effect by applying spray-like water discharge over a wide range, and the usability is improved.

  Then, by operating the speed control unit 200, it is possible to operate at a slow or fast moving speed according to the user's preference. Furthermore, by operating the speed control unit 200 or the stop mechanism 300, the water can be discharged while being fixed at a user's favorite position. For example, it is possible to intensively discharge water at a portion where the shoulder is stiff and obtain a higher massage effect and relaxation effect.

  On the other hand, when the water discharge nozzle 810 is fixed to the wall surface 900 or the like without fixing the housing, the housing moves, and this operation can 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 housing that moves left and right.

Also in this case, by operating the speed control unit 200, it is possible to massage at a slow or fast moving speed according to the user's preference.
In this specific example, by rotating the water discharge nozzle 810 in the direction of the arrow M2, not only the water discharge position but also the water discharge direction can be changed according to the preference of the user.

In addition, FIG. 29 shows a specific example installed on the wall surface 900, but in addition to this, it may be installed, for example, at the edge of the bathtub, and in this case, the shoulder bath can be enjoyed while taking a bath.
In addition, FIG. 29 shows a specific example in which the unit is installed horizontally with respect to the wall surface 900, but the same operation and effect can be obtained even if it is installed vertically and used as a body shower. For example, when it is desired to use as a full body shower, it can be reciprocated to discharge water over a wide area, and when it is desired to wash a part such as hair, it can be stopped at a position suitable for that part and discharged.

FIG. 30 is a schematic diagram illustrating a specific example of a water discharging apparatus using the water discharging cylindrical body 180 as a nozzle.
In this specific example, the water discharge cylinder 180 protrudes from the housing in only one direction, and the tip thereof opens in a faucet shape. The water discharge cylinder 180 reciprocates linearly in the direction of arrow M, and the water discharge position changes periodically. Therefore, a wide area can be washed without moving the object. The water discharge device, for example, by placing such a flow field, the user or hand washing, when cleaning the tableware, it is possible to increase the cleaning efficiency to expand the water discharge range. In addition, an easy-to-use hand-washing machine can be provided for the elderly and the disabled.

  Then, by operating the speed control unit 200, it is possible to operate at a slow or fast moving speed according to the user's preference. Furthermore, by operating the speed control unit 200 or the stop mechanism 300, the water can be discharged while being fixed at a user's favorite position. For example, it is convenient that water can be discharged by stopping the water discharge cylinder 180 when it is desired to wash a specific part intensively or when it is desired to draw water. At this time, since it can be stopped at a preferred position, it is convenient not only for hand washing but also for washing a large pot in the kitchen.

The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to these specific examples.
That is, those skilled in the art for any of the elements constituting the water discharge device of the present invention is even plus the design change, as long as with the gist of the present invention, are within the scope of the present invention.

For example, the present invention includes the gist of the present invention even if the person skilled in the art appropriately modifies the outer shape of the water discharge device and the water discharge nozzle, the speed control unit, the stop mechanism, the shape or arrangement of other components, the stroke, etc. As long as it is within the scope of the present invention.
In addition, it is only necessary that the water inlets corresponding to the left and right pressure chambers are formed with respect to the water inlets, for example, a flow path branched in the housing is formed and connected to each water inlet, and the water inlet connection to the housing is made. There may be only one mouth, and this can simplify the piping.

  Moreover, the application field of the water discharger is not limited to bathrooms, hand-washing or kitchens. In addition, for example, when the water discharge device of the present invention is incorporated in a cleaning device of an automobile, water can be discharged in a stopped state with a uniform shower over a wide range and a variable speed. Furthermore, by incorporating such a water discharge device into a cleaning device at various industrial sites including semiconductors, food, medical, paper pulp, automobiles, etc., for example, semiconductor wafers, liquid crystal panel substrates, Various raw materials, materials, parts, etc. can be cleaned efficiently. In this case as well, there is no need to supply power, lubricant, etc., no electromagnetic noise is generated, no influence of noise, various effects such as hygiene and excellent maintainability can be obtained. .

  Further, for example, it is suitable for use in applications such as spraying water supply to plants in a garden or a field or watering a ground. That is, it is possible to realize a water discharge device that is compact and compact, has excellent portability, does not require electric power, and can discharge water in a stopped state with a variable speed.

It is a schematic diagram which illustrates the water discharging apparatus concerning embodiment of this invention, (a) is a front view of a water discharging apparatus, (b) is the sectional view on the AA line. It is a schematic diagram which shows the water discharging apparatus which concerns on this embodiment with the water supply system. It is a schematic diagram for demonstrating the operation mechanism of the water discharging apparatus of embodiment of this invention. It is a schematic diagram for demonstrating the operation mechanism of the water discharging apparatus of embodiment of this invention. It is a schematic diagram for demonstrating the operation mechanism of the water discharging apparatus of embodiment of this invention. It is a schematic diagram for demonstrating the operation mechanism of the water discharging apparatus of embodiment of this invention. It is a schematic diagram for demonstrating the effect of providing a difference in the opening degree of the inlets 132 and 134. FIG. It is a perspective view of the water discharging apparatus 100 of 1st Embodiment. 1 is a perspective cutaway view of a water discharge device 100. FIG. It is sectional drawing of the water discharging apparatus. It is the sectional view on the AA line of FIG. It is a perspective view showing a main valve and a slide bar. It is a schematic diagram showing the reciprocating operation | movement of a water discharging apparatus. It is a schematic diagram for demonstrating operation | movement of a control means. It is a schematic diagram for demonstrating the mechanism which controls the inversion operation | movement of the core 120 with a magnet. It is a schematic cross section showing the modification of a water discharging apparatus. It is a schematic cross section showing the 2nd specific example of the speed control part 200 which can be provided in the water discharging apparatus of embodiment of this invention. It is a schematic cross section showing the 2nd specific example of the speed control part 200 which can be provided in the water discharging apparatus of embodiment of this invention. It is a schematic cross section showing the 2nd specific example of the speed control part 200 which can be provided in the water discharging apparatus of embodiment of this invention. It is a schematic cross section showing the 2nd specific example of the speed control part 200 which can be provided in the water discharging apparatus of embodiment of this invention. It is a schematic cross section showing the 3rd specific example of the speed control part 200 which can be provided in the water discharging apparatus of embodiment of this invention. It is a schematic cross section showing the 4th specific example of the speed control part 200 which can be provided in the water discharging apparatus of embodiment of this invention. It is a schematic cross section showing the 4th specific example of the speed control part 200 which can be provided in the water discharging apparatus of embodiment of this invention. It is a schematic cross section showing the 4th specific example of the speed control part 200 which can be provided in the water discharging apparatus of embodiment of this invention. It is a schematic cross section showing the 4th specific example of the speed control part 200 which can be provided in the water discharging apparatus of embodiment of this invention. It is a schematic cross section showing the 5th specific example of the speed control part 200 which can be provided in the water discharging apparatus of embodiment of this invention. It is a schematic cross section showing the specific example of the stop mechanism 300 which can be provided in the water discharging apparatus of embodiment of this invention. It is a schematic cross section showing the specific example of the stop mechanism 300 which can be provided in the water discharging apparatus of embodiment of this invention. It is a schematic diagram showing the 1st specific example of the water discharging apparatus of this invention combined with the nozzle part. It is a schematic diagram showing the specific example of the water discharging apparatus which used the water discharging cylinder 180 as the nozzle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Water discharging apparatus 102 Housing 103 Housing main body 104, Housing lid | cover 112,114 Water inlet 116,118 Pressure chamber 120 Core 121 Core main body 122 Core lid 124 Core inner flow path 126 Seal 132, 134 Inlet 142, 144 Main Valve 146, 148 Slide bar 149 Connecting rod 160 Leaf spring 180 Water discharge cylinder 182 Water discharge flow path 184 Seal 200 Speed control unit 202 Braking member 204 Member 206 Lever 210 Three-way valve 212 Water flow path 214 Hydraulic cuff 216 Release pipe 220, 222 Open / close Valve 224 Three-way valve 230 Bypass water channel 232 On-off valve 300 Stop mechanism 302 Key 304 Groove 306 Support portion 308 Latch mechanism 500 Water supply pipe 600 Water supply valve 800, 810 Water discharge nozzle 900 Wall surface

Claims (12)

A housing having a columnar space inside;
A core that is movable in the space while dividing the columnar space into first and second pressure chambers, and has a core flow path inside;
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 a fluid from the first pressure chamber into the core flow path;
A second inlet for introducing fluid from the second pressure chamber into the core flow path;
A valve body for changing the opening of the first and second inlets;
Control means for reversing the magnitude relationship between the opening degrees of the first and second inlets when reversing the moving direction of the core;
A speed control unit for providing variable sliding resistance to the water discharge cylinder;
A water discharging apparatus comprising:   The water discharge device according to claim 1, wherein the speed control unit is provided in a bearing portion of the housing that supports the water discharge cylinder.   The water discharge device according to claim 1, wherein the speed control unit includes a brake member and a tightening mechanism that presses the brake member against the water discharge cylinder.   The said speed control part has a bag-shaped cuff which consists of elastic materials, and a fluid introducing | transducing part which press-contacts to the said water discharging cylinder body by introducing a fluid into the said cuff and inflating. Or the water discharging apparatus of 2. A housing having a columnar space inside;
A core that is movable in the space while dividing the columnar space into first and second pressure chambers, and has a core flow path inside;
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 a fluid from the first pressure chamber into the core flow path;
A second inlet for introducing fluid from the second pressure chamber into the core flow path;
A valve body for changing the opening of the first and second inlets;
Control means for reversing the magnitude relationship between the opening degrees of the first and second inlets when reversing the moving direction of the core;
A valve mechanism capable of shutting off at least one of the fluid supplied to the first water inlet and the fluid supplied to the second water inlet;
A water discharging apparatus comprising: A housing having a columnar space inside;
A core that is movable in the space while dividing the columnar space into first and second pressure chambers, and has a core flow path inside;
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 a fluid from the first pressure chamber into the core flow path;
A second inlet for introducing fluid from the second pressure chamber into the core flow path;
A valve body for changing the opening of the first and second inlets;
Control means for reversing the magnitude relationship between the opening degrees of the first and second inlets when reversing the moving direction of the core;
A bypass water channel connecting the first pressure chamber and the second pressure chamber;
An on-off valve for controlling the flow rate of the fluid flowing through the bypass channel;
A water discharging apparatus comprising:   The water discharge device according to claim 6, wherein the bypass water channel communicates with the first and second pressure chambers at both ends of the space of the housing. A housing having a columnar space inside;
A core that is movable in the space while dividing the columnar space into first and second pressure chambers, and has a core flow path inside;
A water discharge cylinder that has a water discharge flow path that communicates with the flow path in the core and reaches the outside of the housing, and is provided with grooves on the outer periphery;
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 a fluid from the first pressure chamber into the core flow path;
A second inlet for introducing fluid from the second pressure chamber into the core flow path;
A valve body for changing the opening of the first and second inlets;
Control means for reversing the magnitude relationship between the opening degrees of the first and second inlets when reversing the moving direction of the core;
A support fixed to the housing;
Said slidably held against the support portion, selecting first and one of the engaged to the groove of the water discharge tubular body, and a second state not engaged with the groove of the water discharge tubular body, the Keys that can be formed automatically,
A water discharging apparatus comprising: When fluid is supplied to the first and second water inlets with the first inlet closed and the second inlet opened, the core moves toward the second pressure chamber. ,
When fluid is supplied to the first and second water inlets with the second inlet closed and the first inlet opened, the core moves toward the first pressure chamber. The water discharging apparatus according to any one of claims 1 to 8, wherein   The water discharging apparatus according to any one of claims 1 to 9, wherein a moving direction of the core and a moving direction of the valve body are substantially the same.   The control means includes a first state in which the opening of the second introduction port is larger than the opening of the first introduction port, and the first introduction than the opening of the second introduction port. The water discharge device according to any one of claims 1 to 10, wherein the second state in which the opening degree of the mouth is increased can be alternatively maintained. The control means includes
A slide bar which is operable with a stroke longer than a moving stroke of the valve body and moves the valve body;
A leaf spring that biases the slide bar toward one end or the other end of the stroke;
The water discharge device according to any one of claims 1 to 10, characterized by comprising:

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