JP7623656B2 - Water discharge device - Google Patents

Description

The present invention relates to a water discharge device that discharges water supplied from a water supply. In particular, the present invention relates to a water discharge device with a position adjustment function that allows the water discharge nozzle device, etc. to be easily detached from a basic position and moved three-dimensionally, and also to a water discharge device that can be easily returned to the basic position.

Housework is often done using a water discharge device that discharges water from a water supply into a kitchen sink, etc. Conventional water discharge devices have long been available, such as those with a fixed spout or those with a spout that rotates only in a horizontal plane, and these water discharge devices cannot move the water discharge nozzle in three dimensions.
However, even in the prior art, there were water discharge devices equipped with a position adjustment function that made it possible to move the water discharge nozzle device at the tip of the spout and adjust its position.

For example, in the prior art, there is a technique that employs a flexible hose material or a flexible pipe material as a water guideway from a spout to a water discharge nozzle at the tip. For example, the technique shown in Fig. 18 (Patent Document 1: JP-A-11-152774) is known.
As shown in Figure 18, a guide sleeve 101 is fitted to the tip of a spout 100, and a pipe section 103 with a water-discharging nozzle device 104 at its tip is incorporated within the guide sleeve 101 so that it can be freely attached and detached. If the water-discharging nozzle device 104 is removed from the tip of the spout 100, then if the pipe section 103 is a flexible hose, it can be slidably inserted and removed from the guide sleeve 101, and the pipe section 103, which is a flexible hose, can be freely flexed.

In addition, for example, in the prior art, there is a water discharge device with a position adjustment function for a water discharge nozzle tool, etc., which employs a so-called corrugated flexible pipe. For example, the one shown in Fig. 19 (Patent Document 2: JP 2008-51178 A) is known.
The flexible pipe used in a water-discharge device with a position adjustment function, such as a water-discharge nozzle device shown in Figure 19, is configured to include a corrugated pipe 11 made of flexible synthetic resin in which large diameter sections 11a and small diameter sections 11b with different inner diameters are alternately arranged along the axial direction D, a stainless steel bellows tube 12 inserted into the corrugated pipe 12 with flange-shaped sections 12b formed on openings 12a at both ends protruding from openings 11c at both ends of the corrugated pipe 11, a cap nut 13 that is rotatably and undetachably attached to the outer periphery of the flange-shaped section 12b while communicating coaxially with the bellows tube 12, a sleeve section 14a that is inserted between the corrugated pipe 11 and the bellows tube 12, a flange section 14b that is clamped between the opening 11c of the corrugated pipe 11 and the cap nut 13, and a protrusion 14c formed on the outer periphery of the sleeve section 14a.
The advantage of the flexible pipe 10 is that it has a certain degree of flexibility and can remain stationary at any position while maintaining its position against its own weight.
For this reason, the flexible pipe 10 is formed of a flexible stainless steel spiral pipe or a synthetic resin spiral pipe, etc. Also, there is a stainless steel spiral pipe whose outer periphery is covered with a resin bellows pipe, etc.

In this way, if the water-discharging nozzle device at the tip of the spout is movable, it can be flexibly and slidably inserted and removed from the tip of the spout, and the position of the water-discharging nozzle device at the tip of the spout can be freely adjusted in so-called three-dimensional space, which is very convenient. Also, when cleaning the sink, if the position of the water-discharging nozzle device at the tip of the spout can be freely adjusted, water can be discharged into the corners of the sink, which is very convenient.

Japanese Patent Application Publication No. 11-152774 JP 2008-51178 A

However, in the case of using a flexible hose material or flexible pipe material as the water conduit from the spout to the water-discharging nozzle device at the tip as shown in Figure 18, there was a problem with the attachment and detachment work of keeping the pipe portion 103 and the water-discharging nozzle device 104 in the basic position and removing them.
When pulling out from the guide sleeve 101 to extend it, or pushing in to retract it and fix it in a predetermined position, it was necessary to remove the water-discharging nozzle device 104 from the guide sleeve 101 and pull out and extend the entire pipe section 103 from the guide sleeve 101. Furthermore, when returning it to its original position, it was necessary to insert and store the pipe section 103 in the fixed rod-shaped guide sleeve 101, and then mount and fit the water-discharging nozzle device 104 into the predetermined shape of the guide sleeve 101, which was a complicated and time-consuming task.

Next, in the case of using a flexible pipe 10 as a water conduit from the spout to the water-discharging nozzle device at the tip, as shown in Figure 19, a certain degree of flexibility is ensured and it can be stationary at any position in three-dimensional space, but the flexibility of the flexible pipe 10 is small, limiting the range of motion and not ensuring the freedom to bend significantly, resulting in the problem that the water-discharging nozzle device cannot be moved freely through space in three dimensions.
In addition, stainless steel spiral tubes can become corroded if detergent adheres to them, and are particularly susceptible to corrosion when chlorine-based detergents adhere to them.

In other words, in the prior art water-discharging device with a position adjustment function for the water-discharging nozzle device, etc., when emphasis is placed on freely moving the water-discharging nozzle device in three-dimensional space, it becomes as shown in Figure 18, and while free movement in three-dimensional space can be ensured by using a water conduit from the spout to the water-discharging nozzle device at the tip that is sufficiently flexible, such as a hose, on the other hand, there was no technology to easily detach the water-discharging nozzle device 104 from the basic position, making the attachment and detachment process problematic.
On the other hand, if emphasis is placed on the fact that the water-discharging nozzle device does not need to be detached and can be fixed at any position in three-dimensional space, then the result is as shown in Figure 19, which can be fixed at any position in three-dimensional space, but the flexibility of the flexible tube 10 will be reduced, limiting the range of motion and making it impossible to ensure the freedom to bend significantly.

The present invention aims to provide a water discharge device that uses a highly flexible hose material as the water conduit from the spout to the water discharge nozzle at the tip, ensuring flexibility so that the water discharge nozzle can be moved freely in three-dimensional space, and that ensures stable operability by allowing the water discharge nozzle to be easily attached and detached from the basic position.

In order to achieve the above object of the present invention, the water discharge device of the present invention is configured to include a spout that supplies water from a water supply pipe, a flexible and bendable hose body connected to the spout, a water discharge head body that is connected to the hose body and discharges water guided from the water supply pipe, an arm support that extends from the spout, and a water supply operation unit, the arm support is provided with a support connector at the tip of the main body of the arm support, the surface facing the water discharge head body being concave, the water discharge head body is provided with a head connector that includes a convex shape on the outer surface that faces the support connector of the arm support, and the water discharge head body is supported detachably from the arm support via the connection between the concave shape of the support connector of the arm support and the convex shape of the head connector of the water discharge head body.

An example of the concave inner surface of the support connector of the arm support is a partial spherical shell shape that follows a spherical surface. The partial spherical shell shape referred to here is a shape in which a portion of a concave surface that forms a spherical shell shape equidistant from the center point is cut out. This is similar to the shape of the reflector of a parabolic antenna, which is a shape in which a portion of a concave surface that forms a complete spherical shell shape with the focal point at its center is cut out.

An example of a convex outer surface of the head connector of the water-spouting head body is a spherical surface.
If the distance from the inner surface of the partial spherical shell to the center point is approximately the same as the diameter of the sphere, the two will fit together. If the two can fit together, they can abut against each other at any angle, and excellent connection capabilities can be obtained.
In particular, if the size of the convex shape of the head connector of the water-spouting head body is larger than the size of the concave shape of the support connector of the arm support, the concave shape of the support connector of the arm support will allow it to slide over the surface of the convex shape of the head connector of the water-spouting head body, providing the freedom to slide freely up, down, left and right while connected.

In order to ensure a reliable connecting force, it is preferable that the support connection body at the tip of the arm support and the head connection body of the water-discharge head body are made of a material, one of which is magnetic and the other of which has magnetic attractive properties.
With the above configuration, magnetic force can be used as a connecting force between the arm support and the water-spouting head body.
Alternatively, instead of the above configuration, it is preferable that both the support connection body at the tip of the arm support body and the head connection body of the water-discharge head body are made of magnets, and that they are arranged magnetically so that they can be attracted to each other.
With the above configuration, magnetic force can also be used as a connecting force between the arm support and the water-spouting head body.

After the water discharge head of the water discharge device of the present invention is removed from the arm support, the hose body is flexible and has a high degree of freedom in bending, ensuring freedom of movement in three dimensions. In order to further ensure freedom of movement in three dimensions in the basic position (resting position) of the water discharge head, the following structure can be adopted.

The first structure is a device in which a recess is provided around the convex shape of the head connecting body of the water-spouting head body that is recessed below the outer wall surface of the water-spouting head body.
In this way, by having the head connecting body of the water-spouting head body have a convex shape and a recess around it, even if the range of up, down, left and right movement of the support connecting body of the arm support body becomes large, part of the edge of the support connecting body can enter the recess without colliding with the outer wall surface of the water-spouting head body, expanding the range of up, down, left and right movement, thereby increasing the freedom of up, down, left and right movement.

The second structure is the vertical tilt of the arm support. In other words, at the connection between the arm support and the spout, the arm support is structured with a movable mechanism that allows at least vertical tilt with respect to the spout, and the basic position (static position) of the water discharge head can be controlled in the vertical direction through the vertical tilt of the arm support.

The third structure is the left-right swivel of the spout. In other words, the spout is structured with at least a movable swivel mechanism at least in a portion below the connection with the arm support, and the left-right swivel of the spout makes it possible to control the basic position (static position) of the water-discharging head in the left-right direction.

The fourth structure is the twisting rotation of the water-spouting head. In other words, the water-spouting head is connected to a hose body, which is a flexible, bendable hose body connected to a spout. This allows for some twisting margin. There may also be a structure that allows for swivel rotation at the connection between the water-spouting head and the hose body. This structure allows for greater freedom in the position of the water-spouting head, and greater freedom in the connection position between the head connector of the water-spouting head body and the support connector at the tip of the arm support.

Next, further improvements to the water discharge device of the present invention may be as follows.
The first innovation is to incorporate a water-spouting nozzle, which is a water-saving pulsating or intermittent fluid generating device invented by inventor Masaaki Takano, into the water-spouting head. The device for generating a pulsating fluid or an intermittent fluid comprises an injection mechanism which injects a liquid or gaseous fluid, and a spatial cavity which is located downstream of the injection mechanism and has a fluid discharge section below the injection mechanism and a through hole on the side thereof which is connected to an air passage for conducting outside air, the inside of which is filled with outside air, and which is configured so that the injection fluid is formed so that a part of the injection fluid flows while temporarily covering the through hole due to changes in the injection destination of the injection fluid of the injection mechanism or due to the collision of the injection fluid with a wall surface of the air cavity, and the injection fluid is formed so as to restrict the amount of outside air passing through the through hole, and a temporary pressure drop in the spatial cavity caused by the injection of the injection fluid downward within the spatial cavity and a temporary pressure recovery in the spatial cavity due to the injection of the outside air from the through hole are repeatedly changed, thereby generating a rhythm of strength and weakness of the injection of the outside air, and generating a pulsating flow or intermittent flow of the fluid from the injection mechanism.

The second innovation is that an LED light-emitting element is incorporated into a part of the water-discharge head body, making it possible to project light from the water-discharge head body.
The third innovation is to have a structure equipped with sensors related to water usage and an IoT system that stores or transmits data obtained from the sensors.

Through these measures, the following can be achieved:
In other words, by using the first innovation described above and attaching an excellent water-saving pulsating fluid or intermittent fluid generating device to the water-discharge head, the water-discharge device of the present invention can achieve excellent water-saving effects as well as excellent cleaning effects, making it an environmentally friendly water-discharge device that will be highly beneficial in achieving the SDGs.
The above-mentioned "device for generating pulsating fluid or intermittent fluid" is described in detail in Patent No. 5,961,733 (inventor Takano Masaaki), and the generated pulsating fluid or intermittent fluid is, for example, in the form of roughly ball-shaped liquid lumps which are ejected intermittently or in a continuous state with some edges connected to each other, resulting in a high water-saving effect as well as a high cleaning effect as each liquid lump intermittently or continuously collides with the object to be cleaned. By attaching this "device for generating pulsating fluid or intermittent fluid" to the tip of the water-spouting head body as a water-spouting nozzle, a high water-saving effect and a high cleaning effect can be obtained.

In addition, with the second feature, for example, if the LED light emitter is controlled to emit light in a specific color while the "pulsating or intermittent fluid generating device" of the first feature is operating, it is easy to recognize that water saving and cleaning effects are being achieved while water is being discharged. It also has the effect of functioning as a hand lamp at night.

The third innovation above, for example, makes it possible to dynamically grasp the amount of water usage resulting from the use of the water discharge device of the present invention. Furthermore, it is possible to grasp the amount of water usage not only at the household level, but also at the neighborhood level, region level, and time period level. If this information is obtained as big data, it can be utilized as valuable water resource data in pursuit of the SDGs, and will be extremely beneficial.

According to the water discharge device of the present invention, the concave shape of the support connector of the arm support and the convex shape of the head connector of the water discharge head are connected to each other along the line. If the shapes of the two are a partial spherical shell and a spherical body, the two can be connected along the line and can abut at any angle, and excellent connection ability can be obtained.
In particular, if the size of the convex shape of the head connector of the water-spouting head body is larger than the size of the concave shape of the support connector of the arm support, the support connector of the arm support can be freely slid up, down, left and right while connected to the head connector of the water-spouting head body.
For example, if the support connector of the arm support body and the head connector of the water-dispensing head body are connected by using a material that is magnetic and the other has magnetic attractive properties, or if both are magnetic and have a magnetic arrangement that allows them to be attracted to each other, the two can be connected freely and detachably by magnetic force.
In the water discharge device of the present invention, after the water discharge head is detached from the arm support, the hose body is flexible and has a high degree of freedom in bending, ensuring freedom of movement in three-dimensional space. Furthermore, the arm support can also tilt and swivel, ensuring high freedom of movement of the water discharge head in three-dimensional space.

1 is a diagram showing a configuration example of a water discharge device 100 according to a first embodiment of the present invention. 13 is a diagram showing a simplified connection and disconnection operation between the water-spouting head body 140 and the arm support body 150. FIG. This is a cross-sectional view showing the horizontal and vertical connections between the support connector 152 of the arm support 150 and the head connector 142 of the water-spouting head body 140. 13 is a diagram illustrating the degree of freedom of swivel of the posture of the water-spouting head body 140 when the water-spouting head body 140 is connected to the arm support 150. FIG. 13 is a diagram illustrating the degree of freedom of tilt of the posture of the water-spouting head body 140 when the water-spouting head body 140 is connected to the arm support 150. FIG. 13 is a diagram illustrating the degree of freedom of the posture of the water-spouting head body 140 when the water-spouting head body 140 is detached from the arm support 150. FIG. FIG. 11 is a diagram showing only a portion of a water-discharging nozzle 200 which is a water-saving pulsating or intermittent fluid generating device according to a second embodiment. FIG. 8 is a diagram simply illustrating a state in which water is supplied from a water supply pipe 110 to the water discharge nozzle 200 for pulsating fluid or intermittent fluid shown in FIG. 7 to cause a continuous fluid to flow. The vicinity of the discharge portion 250 is taken out and the liquid mass and gas mass flowing within the discharge portion 250 are illustrated for easy understanding. 13 is a diagram for briefly explaining the cleaning effect of a pulsating fluid or an intermittent fluid generated by a water discharge nozzle 200 which is a pulsating fluid or an intermittent fluid generating device according to Example 2. FIG. FIG. 1 is a diagram showing a conventional cleaning method using a simple continuous water flow. FIG. 11 is a diagram showing only a part of another configuration example of a water-discharging nozzle 200 which is a water-saving pulsating or intermittent fluid generating device. 13 is a diagram simply illustrating a state in which water is flowed from a water supply pipe 110 to a water discharge nozzle 200, which is a pulsating fluid or intermittent fluid generating device shown in FIG. 12. FIG. FIG. 13 is a diagram showing only a portion of yet another configuration example of a water-discharging nozzle 200 that is a water-saving pulsating or intermittent fluid generating device. 15 is a diagram simply illustrating a state in which water is flowing from a water supply pipe 110 to a water discharge nozzle 200, which is a pulsating fluid or intermittent fluid generating device shown in FIG. 14. FIG. FIG. 13 is a diagram showing only a portion of a water-discharging nozzle 200 that is a water-saving pulsating or intermittent fluid generating device, in yet another configuration example. 17 is a diagram simply illustrating a state in which water is flowing from a water supply pipe 110 to a water discharge nozzle 200, which is a pulsating fluid or intermittent fluid generating device shown in FIG. 16. FIG. FIG. 1 is a diagram for explaining the prior art of Patent Document 1, Japanese Patent Laid-Open No. 11-152774. FIG. 1 is a diagram for explaining the prior art of Patent Document 2, JP 2008-51178 A.

An embodiment of the water discharge device of the present invention will be described. However, it goes without saying that the scope of the present invention is not limited to the specific uses, shapes, numbers, etc. shown in the following embodiment.

FIG. 1 is a diagram showing a configuration example of a water discharge device 100 according to a first embodiment of the present invention.
Fig. 1 is a diagram showing only a part of a water discharge device 100 according to a first embodiment of the present invention. Fig. 1 shows a water supply pipe 110, a spout 120, a hose body 130, a water discharge head body 140, a water discharge head main body 141, a head connector 142, a recess 143, an arm support 150, an arm main body 151, a support connector 152, a water supply operation unit 160, and a water discharge nozzle 200. Other necessary components as water supply equipment may be omitted.
1 shows an enlarged view of the connection state between the head connector 142 and the support connector 152. A side view and a vertical cross-sectional view are shown with hatching.
2 is a simplified diagram showing the operation of connecting and disconnecting the water-spouting head body 140 and the arm support body 150. It can be seen that the head connector 142 is provided on the outer surface of the water-spouting head body 140, and the head connector 142 is provided on the surface opposite the support connector 152.
2 shows an enlarged view of the head connector 142 and the support connector 152 in a separated state. A side view and a vertical cross-sectional view are shown with hatching.

Each component will be briefly described below.
The water supply pipe 110 is a pipe for supplying water, and is connected to a water facility from upstream to which water is appropriately supplied.
Other necessary components for the water supply facility are omitted, but it is assumed that the components that a normal water supply pipe 110 has are included.

The spout 120 is connected to the water supply pipe 110 , and receives water from the water supply pipe 110 and supplies it to the hose body 130 .
There is no limitation on the shape of the spout 120. The internal water passage is often cylindrical, but the horizontal cross section is not limited to being circular, and may be of various shapes such as elliptical or rectangular.
Although the spout 120 itself is not necessarily equipped with a movable mechanism, in this example, it is capable of swiveling. In this example, as shown in Fig. 4, the spout 120 has an upper spout body 121 and a lower spout body 122, and the lower spout body 122 is fixed to the water supply pipe 110, but the upper spout body 121 has a swivel mechanism relative to the lower spout body 122, and the upper spout body 121 can rotate in the horizontal direction. As a result, as described later, the water discharge nozzle 200 of the water discharge head body 140 has an improved degree of freedom of movement in three-dimensional space.

The hose body 130 is a flexible and freely bendable hose body that has the pressure resistance to withstand water pressure, and is made of a material and structure that is durable enough to prevent water leakage even when the water pressure changes during water supply or when the hose is repeatedly bent.
By adopting a hose body 130 with excellent flexibility, it is possible to follow the swivel movement of the spout 120, as shown in Figure 4 described below, and it is also possible to follow the tilt movement of the arm support 150, as shown in Figure 5 described below.Furthermore, as shown in Figure 6 described below, when the water-discharging head body 140 is detached from the arm support 150, the water-discharging head body 140 can move freely in three-dimensional space, thereby improving the freedom of movement of the water-discharging nozzle 200 of the water-discharging head body 140 in three-dimensional space.

The water discharge head body 140 is connected to the hose body 130 and discharges water guided from the water supply pipe 110 via the hose body 130.
The water-spouting nozzle 200 is a structure that provides a water outlet at the tip of the water-spouting head body 140. The water-spouting nozzle 200 may simply be a water outlet that is incorporated into the water-spouting head body 140, or may be a water-saving nozzle as described later in Example 2.

The water-spouting head body 141 is the housing of the water-spouting head body 140, and has an open bottom with the water-spouting nozzle 200 housed inside. In this example, it is a cylindrical body with an open bottom. A head connector 142 is provided on the outer peripheral wall.

The head connector 142 is a structure provided on a part of the water-spouting head main body 141 of the water-spouting head body 140 .
This head connector 142 is a connecting part that is detachably connected to the concave shape of the support connector 152 of the arm support body 150, and here, the connection between the head connector 142 and the support connector 152 has a concave shape and a convex shape, and is shaped so that the two can abut against each other.
In this example, as shown in Figures 1, 2(a) and 2(b), an example of the concave inner surface of the support connector 152 of the arm support 150 is a partial spherical shell shape that follows a part of a sphere. Also, an example of the convex outer surface of the head connector 142 of the water-spouting head body 140 is a sphere. As shown in Figure 1, if the distance to the center of the partial spherical shell of the support connector 152 and the diameter of the sphere of the head connector 142 of the water-spouting head body 140 are approximately the same, they will be shaped to connect to each other along the line. If the two can be aligned along the line, they can abut against each other at any angle, and excellent connection ability can be obtained.
In this example, as shown in Figures 1 and 2, the size of the convex shape of the head connector 142 of the water-spouting head body 140 is larger than the size of the concave shape of the support connector 152 of the arm support body 150.
The support connector 152 of the arm support 150 can move along the surface of the head connector 142 of the water-spouting head body 140, and the two can freely slide up, down, left, and right while connected to each other. This freedom of free sliding up, down, left, and right will be described later with reference to FIG.

The arm support 150 is a member that extends from the spout 120 and supports the water-spouting head body 140 .
For example, if the spout 120 has an upper spout body 121 and a lower spout body 122, the side that rotates by swivel, that is, in this example, the arm support 150, is extended from the upper spout body 121.

In this example, the arm body 151 is attached to the spout 120 via the tilt mechanism 154. In this example, the arm body 151 is attached to the upper spout body 121 via the tilt mechanism 154.

The arm support 150 is configured to include at least an arm body 151 and a support connector 152 attached to the end of the arm body 151. Because both are spherical, the mounting position of the water discharge head body 140 can be freely adjusted up, down, left, and right via the support connector 152.

The arm body 151 has a rod-like shape. It is sufficient if it has the rigidity to support the water discharge head body 140. The arm body 151 may have a so-called telescope structure and be extendable and retractable.

The support connector 152 is a member connected to the tip of the arm body 151 of the arm support 150, and in this example, has a convex shape, in particular, a spherical body. In other words, the support connector 152 provides a convex shape that faces the head connector 142 provided by the water-spouting head body 140. In this example, the shape of the support connector 152 is a spherical convex shape, with a recess 143 provided around it. The advantage of providing this recess 143 will be described later with reference to FIG. 3.
Incidentally, as will be described later, the head connector 142 and the support connector 152 may be connected together using magnetic force.

The water supply operating unit 160 is an operating part that controls the amount of tap water supplied. There are various types of water supply operating unit 160 as known in the art, and the present invention is not particularly limited to these types. For example, there is a lever cock type. In addition, if it is a simple on/off type, a sensor type is also possible.
The above is a brief description of each component.

Next, the operation of connecting and disconnecting the water-spouting head body 140 and the arm support body 150 will be briefly described.
FIG. 2 is a simplified diagram showing the operation of connecting and disconnecting the water-spouting head body 140 and the arm support body 150. As shown in FIG.
As shown in Figure 2, the water-spouting head body 140 and the arm support body 150 are connected and detached by the convex shape of the head connector 142 and the concave shape of the support connector 152 fitting together. In this example, a magnetic force is used to reliably and easily connect and detach the spherical surfaces of both bodies.

The convex shape of the head connector 142 is provided on a portion of the outer surface of the water-spouting head body 140 (particularly the side facing the arm support 150), and in this example, the convex shape is particularly part of a sphere. The tip side of the support connector 152 of the arm support 150 (the side facing the water-spouting head body 140) is provided with a concave shape, and in this example, it is particularly a partial spherical shell shape. If the diameter of the sphere of the head connector 142 of the water-spouting head body 140 and the distance to the focal point of the partial spherical shell of the support connector 152 of the arm support 150 (focal diameter) match, the two will abut against each other.
Here, if a magnet is built into either the tip side of the head connector 142 or the support connector 152 and the other is a magnetic material such as stainless steel, or if magnets are built into both the tip sides of the head connector 142 and the support connector 152 and are of opposite polarity, the two will be connected to each other by magnetic force, and can be freely switched between connection and disconnection as shown in Figures 2(a) and 2(b). In other words, if the magnetic force is of an appropriate strength, the water-spouting head body 140 can be fully supported at the tip of the arm support 150, and if the two are connected to each other by magnetic force, the user can grasp the water-spouting head body 140 with his or her hand and pull it out from the tip of the arm support 150 to separate the two against the magnetic force.

In this way, the user can easily attach and detach the water-spouting head body 140 to and from the arm support 150 by hand.
Due to this detachment mechanism between the water-spouting head body 140 and the arm support 150, in the water-spouting device of the present invention, the posture of the water-spouting head body 140 can be freely adjusted even when the water-spouting head body 140 is connected to the arm support 150, and further, when the water-spouting head body 140 is detached from the arm support 150, the posture of the water-spouting head body 140 can be freely adjusted over a wider range.

As described above, the macroscopic position of the water-spouting head body 140 can be changed in three dimensions.
3(a) shows in cross section the horizontal connection between the support connector 152 of the arm support 150 and the head connector 142 of the water-spouting head body 140. It is simply shown in a plan view seen from above.
Fig. 3(a) shows a simple illustration of the state in which the support connector 152 is actually swiveled by changing the contact angle to the left and right while the head connector 142 is fixed. To avoid difficulty in viewing when the figures overlap, three states are shown in which the position of the support connector 152 is shifted, but in reality, it can be said that the support connector 152 can "swing left and right" while the head connector 142 is fixed. Fig. 3(a) shows, in the order of the left, center, and right figures, a state in which the support connector 152 is swiveled to the left, a state in which the support connector 152 is facing the center, and a state in which the support connector 152 is swiveled to the right.

As shown in FIG. 3(a), the head connector 142 of the water discharge head body 140 also provides a spherical surface as a convex shape in the horizontal direction. Furthermore, a recess 143 is provided around the convex shape, carved from the outer wall surface of the water discharge head body 141. Therefore, the constraints on the horizontal movement of the support connector 152 of the arm support 150 are relaxed, and even if the range of movement of the support connector 152 of the arm support 150 to the left and right is increased, a part of the edge of the support connector 152 can enter the recess 143 and move without colliding with the outer wall surface of the water discharge head body 141. As a result, the range of movement of the support connector 152 of the arm support 150 to the left and right can be expanded, improving the degree of freedom of movement in the left and right direction. As shown in FIG. 3(a), the support connector 152 of the arm support 150 can abut against the head connector 142 at any angle in the movable range, demonstrating the ability to be freely connected in the horizontal direction.

3(b) shows the vertical connection between the support connector 152 of the arm support 150 and the head connector 142 of the water-spouting head body 140. This is a view from the side.
The diagram in Fig. 3(b) depicts the water-spouting head body 140 and the arm support body 150 from the side, and simply shows the state in which the support connector 152 is tilted up and down. Since it is difficult to see when the drawings overlap, the position of the water-spouting head body 140 is also shifted. In reality, it can be said that the water-spouting head body 140 can move in a so-called "vertical swiveling" manner.
In the example of FIG. 3(b), the head connector 142 of the water-spouting head body 140 also provides a spherical surface as a convex shape in the vertical direction. Furthermore, a recess 143 is provided around the convex shape, which is carved from the outer wall surface of the water-spouting head body 141. Therefore, the restriction on the vertical movement of the support connector 152 of the arm support 150 is relaxed, and even if the range of vertical movement of the support connector 152 of the arm support 150 is increased, a part of the edge of the support connector 152 can move into the recess 143 without colliding with the outer wall surface of the water-spouting head body 141. As a result, the vertical movement range of the support connector 152 of the arm support 150 can be expanded, improving the degree of freedom of movement in the vertical direction. As shown in FIG. 3(b), the support connector 152 of the arm support 150 can abut against the head connector 142 along any angle in the movable range, demonstrating the ability to be freely connected in the vertical direction.

When Figures 3(a) and 3(b) are viewed together, the angle between the head connector 142 and the support connector 152 can be freely adjusted in three dimensions by the contact between the spherical shell surface and the spherical surface, so the mounting position of the water-spouting head body 140 can be adjusted, and the water-spouting angle of the water-spouting nozzle 200 of the water-spouting head body 140 can be adjusted.

Next, Figures 4 and 5 are diagrams for explaining the degree of freedom of the posture of the water-spouting head body 140 in a state in which the water-spouting head body 140 is connected to the arm support body 150. Figure 4 shows a swivel operation, and Figure 5 shows a tilt operation.
As shown in FIG. 4 , the swivel mechanism of the spout 120 allows the water-spouting head body 140 to swivel in a horizontal plane while remaining connected to the arm support 150 .
Furthermore, as shown in Figure 5, the arm support 150 can tilt relative to the spout 120 via the tilt mechanism 154 of the arm support 150, so that the water-discharge head body 140 can perform tilt movement in a vertical plane while remaining connected to the arm support 150.

Next, FIG. 6 is a diagram for explaining the degree of freedom of the posture of the water-spouting head body 140 when the water-spouting head body 140 is detached from the arm support body 150.
As shown in Figure 6, once the water-discharging head body 140 is detached from the arm support 150, the water-discharging head body 140 can be freely moved by hand within three-dimensional space while remaining connected to the highly flexible hose body 130, and therefore, although there is a limit to the length of the hose body 130, the water-discharging nozzle 200 can be placed in any desired position and at any desired angle.
After using the water-spouting head body 140 by freely moving it in three-dimensional space with one's hand to spout water, the water-spouting head body 140 can be easily supported and fixed by returning the water-spouting head body 140 to the arm support body 150 and supporting it again.

As a second embodiment, an example will be described in which a water-spouting nozzle 200 that is a water-saving pulsating fluid or intermittent fluid generating device is used as the water-spouting nozzle 200 attached to the water-spouting head body 140.
Fig. 7 is a diagram showing only a part of the water discharge nozzle 200 which is a water-saving type pulsating fluid or intermittent fluid generating device of Example 2. Fig. 7 shows the injection mechanism 210, the spatial cavity 220, the liquid introduction pipe 230, the air passage 240 and the introduction hole 241, and the discharge part 250 for the pulsating fluid or the intermittent fluid.

The liquid introduction pipe 230 is connected to a liquid supply device for the continuous fluid, and is a pipe that receives the continuous fluid and draws it downward. In FIG. 7, it is depicted as a space above the injection mechanism 210, but it is a pipe that connects the water supply pipe 110 and the injection mechanism 210. In FIG. 7, the water supply pipe 110 and its attachment members are omitted from the illustration.

The injection mechanism 210 is a mechanism that ejects the continuous water flow forcefully as an injection liquid flow by narrowing the area through which the continuous water flow passes. In this configuration example, the injection mechanism 210 is provided on the lower surface of the liquid introduction pipe 230, and is a member that receives the continuous fluid from the liquid introduction pipe 230, narrows the diameter, and ejects it downward.
The spray angle of the spray mechanism 210 is set so that the spray destination or spray destination hits the introduction hole 241 or its vicinity, and while bouncing off, part of it becomes a water current that flows downward while covering the side wall surface including the introduction hole 241.

The spatial cavity 220 has the injection mechanism 210 disposed on the upper surface and the discharge part 250 for the pulsating fluid or intermittent fluid disposed on the lower surface, forming an enclosed space filled with gas flowing in from the introduction hole 241. The only inflows and outflows to the spatial cavity 220 are the inflow of the injection fluid from the injection mechanism 210, the inflow of outside air from the introduction hole 241, and the outflow of the pulsating fluid or intermittent fluid from the discharge part 250, and the rest are closed to maintain airtightness.

FIG. 8 is a diagram simply showing a state in which water is supplied from the water supply pipe 110 to the water discharge nozzle 200 for pulsating fluid or intermittent fluid shown in FIG. 7 to cause a continuous fluid to flow.
FIG. 13 is a diagram simply illustrating a state in which liquid is supplied from a liquid supply device to cause a continuous fluid to flow.
As shown in FIG. 8, the basic movement is that the ejection fluid flows vigorously from the ejection mechanism 210 into the space cavity 220, which is maintained airtight, and water flows out from the exhaust section 250 while drawing in the gas inside the space cavity 220.
The injection fluid flowing in from the injection mechanism 210 is discharged from the discharge part 250 while drawing in and pushing away the air inside the spatial cavity 220, so that the air pressure inside the spatial cavity 220 drops. Therefore, with the drop in air pressure, outside air is blown in at high speed from the ventilation path 240 via the introduction hole 241.

The injection mechanism 210 is angled so that the destination of the injection fluid or the destination of the injection droplets contacts the introduction hole 241 or its vicinity, and while bouncing, a part of the injection fluid covers the side wall surface including the introduction hole 241 and flows downward as a water current. In the configuration example of FIG. 8, the destination of the injection fluid or the destination of the injection droplets is slightly above the introduction hole 241. When the injection fluid hits the side wall surface of the spatial cavity 220, it is reflected and spreads, but a part of it flows along the side wall surface of the spatial cavity 220. Because the side wall surface of the spatial cavity 220 includes the introduction hole 241, as shown in FIG. 8, a state appears in which the opening of the introduction hole 241 is sealed by the injection fluid flowing downward.

Now, attention will be paid to the change in air pressure within the spatial cavity 220 .
8, the ejected fluid flows downward in the spatial cavity 220 while drawing in and pushing out the air inside, causing a drop in the air pressure in the spatial cavity 220. It will be understood that the gas is pushed downward from the spatial cavity 220 together with the ejected fluid, causing a drop in the air pressure in the narrow, sealed spatial cavity 220.

Meanwhile, outside air is blown into the cavity 220 from the air passage 240 through the through hole 241. This blowing of outside air is caused by a drop in air pressure within the cavity 220. When the outside air is blown into the cavity 220, the lowered air pressure within the cavity 220 is restored.
Here, this decrease in air pressure and recovery of air pressure do not maintain an orderly equilibrium state, and since there is a liquid flow film of the injected fluid blocking the opening of the introduction hole 241, the states shown on the left and right in Figure 8 (b) are repeated alternately.

The state on the left side of Figure 8(b) is a state in which the opening of the introduction hole 241 is sealed with a liquid flow film formed by the injected fluid. In this state, the blowing of outside air through the introduction hole 241 momentarily stops, and air is pushed downward from within the space cavity 220, causing the air pressure within the narrow, sealed space cavity 220 to decrease.

8B is a state in which the air pressure inside the spatial cavity 220 drops significantly, and the force of drawing the outside air into the spatial cavity 220 increases, so that the outside air overcomes the liquid flow film sealing the opening of the introduction hole 241, tears the liquid flow film, and is blown into the spatial cavity 220. In this state, the liquid flow film of the jetted fluid is momentarily interrupted, and the outside air blown in from the introduction hole 241 is sandwiched in between, and the air pressure inside the spatial cavity 220 is restored by the blowing in of the outside air.
As the air pressure in the spatial cavity 220 recovers, the force of drawing the outside air into the spatial cavity 220 decreases, and eventually the momentum of the liquid flow film flowing along the opening of the through hole 241 becomes stronger, returning to the state shown on the left side of Figure 8 (b) in which the liquid flow film seals the opening of the through hole 241.
In this way, the repeated fluctuations between the state of air pressure decreasing without outside air being blown in (left side of Figure 8(b)) and the state of air pressure recovering with outside air being blown in (right side of Figure 8(b)) create a rhythm of varying strengths of air being blown in, generating a pulsating or intermittent flow of foamy water from the injected fluid.

Regarding the relationship between the introduction hole 241 and the injected fluid, in the configuration examples of Figures 7 and 8, in the state on the left side of Figure 8(b), a liquid flow film of the injected fluid flows along the front surface of the introduction hole 241, completely blocking it and eliminating the amount of airflow. However, instead of flowing along the front surface of the introduction hole and completely blocking it, the liquid flow film may flow past the front surface of the introduction hole, leaving a small gap, and although air may pass through this small gap, the amount of airflow may be limited. This case will be explained in Example 2.

In addition, because the gas in the spatial cavity 220 and the outside air are blown into the jet fluid from the side introduction hole 241, the liquid passing through the spatial cavity 220 may be mixed with the outside air and turn into a foamy outside air-mixed liquid. At the moment when the blowing of the outside air from the introduction hole 241 becomes particularly strong, the jet fluid may be broken or thinned by the outside air. As a result, the jet fluid passing through may become a pulsating flow or a pulse-like foam liquid mass that is intermittently interrupted. In particular, if the shape of the jet fluid itself is originally jetted as a thin liquid film, the repeated strength and weakness of the flow of the outside air blown into the jet fluid may cause a break and a liquid mass may easily be formed.

The generated liquid mass also entrains and pushes the gas in the spatial cavity 220 downstream until it reaches the entrance of the drainage channel 150. During this time, the air pressure in the spatial cavity 220 repeatedly fluctuates in strength. When the air pressure in the spatial cavity 220 is relatively strong, the foamy liquid mass tends to push the gas near the drainage channel 150 into the drainage channel 150, and the gas pushed in by the liquid mass may be pushed into the drainage channel 150 as a gas mass.

FIG. 9 illustrates the vicinity of the discharge portion 250 so that the liquid mass and the gas mass flowing within the discharge portion 250 can be easily understood.
9, a gas mass is forced ahead of the liquid mass in the drainage channel 150. When a gas mass is present between liquid masses in this way, it is as if the preceding liquid mass and the succeeding liquid mass are independent, with the gas mass entering between them, and the gas mass is discharged from the discharge portion 250 to the outside of the system as a pulsating flow or a pulsed intermittent flow.

For ease of understanding, FIG. 9 shows the foam water as being formed as completely separate liquid masses within the discharge section 250, but there are cases where the foam water forms separate liquid masses like this, or where there are no complete breaks or the foam water forms a continuous mass with edges connected to the liquid mass at the rear. In any case, the foam water may form a pulsating or intermittent flow rather than a uniform continuous fluid.

Fig. 10 is a diagram for simply explaining the cleaning effect when the pulsating fluid or intermittent fluid generated by the water discharge nozzle 200, which is a pulsating fluid or intermittent fluid generating device according to Example 2, is water and is used for cleaning purposes. In order to explain the cleaning effect of the pulsating fluid or intermittent fluid, Fig. 10 illustrates a moment in time and emphasizes that the fluid continues to hit the surface as a foamy liquid mass.
10A shows a state in which a foaming water flow of a pulsating fluid or an intermittent fluid generated by the water discharge nozzle 200, which is a pulsating fluid or an intermittent fluid generating device according to Example 2, starts to impinge on dirt on the surface of an object. Here, an independent liquid mass of the pulsating fluid or intermittent fluid flowing down at high speed starts to impinge.
10B shows the state in which the leading foamy liquid mass hits a stain and collapses as it is, with the energy of the foamy liquid mass being absorbed by the stain. One of the independent foamy liquid masses hits the stain and collapses without bouncing off, pushing the stain outward in the lateral direction.
FIG. 10C is a diagram showing the state in which the next arriving foamy liquid mass begins to impact.

Figure 10(d) shows how the subsequent foamy liquid mass hits the dirt, causing it to collapse and the energy of the foamy liquid mass being absorbed by the dirt. The preceding foamy liquid mass exists in contact with the dirt, but because it is foamy water, no rising water film is formed and the top surface of the dirt is nearly exposed. The subsequent foamy liquid mass hits this dirt, collapsing it without bouncing off, pushing the dirt further out in the lateral direction.

Fig. 10(e) shows the state where the next foamy liquid mass begins to hit, and Fig. 10(f) shows the state where the subsequent foamy liquid mass hits the dirt, collapses, and the energy of the foamy liquid mass is absorbed by the dirt. The dirt is pushed further out in the lateral direction than in the state of Fig. 10(d). In this way, independent foamy liquid masses continue to hit the dirt intermittently, so that the dirt is efficiently swept away in the lateral direction.
Since it is foamy water, no rising water film is formed by the preceding foam mass, and the top surface of the dirt is always nearly exposed, so that the foam masses that arrive one after another continue to strike the dirt directly, and the energy of the foam masses is continuously applied to the dirt. In this way, the foamy water flow generated by the pulsating fluid or intermittent fluid generating device 200 exhibits a high cleaning effect.

On the other hand, FIG. 11 shows a conventional cleaning method using a simple continuous water flow.
FIG. 11(a) is a diagram showing how a continuous water stream begins to strike dirt on an object surface.

Figure 11(b) shows the moment immediately after the continuous water flow hits dirt on the surface of an object. As shown in Figure 11(b), part of the continuous water flow that hits the dirt bounces upward and collides with the subsequent continuous water flow, canceling out the momentum. In addition, splashes are likely to be scattered around.

Figure 11(c) shows the next stage after Figure 11(b). The water continues to bounce off the dirt, and the momentum of the water flows continues to cancel each other out. There is also a lot of splashing of water into the surrounding area, and a water film begins to form on the dirt.

Figure 11(d) shows the next stage after Figure 11(c). The water flow continues to bounce off the dirt, and the momentum of the water flows continues to cancel each other out. Also, a water film is formed on the dirt, and part of the continuous water flow tends to flow sideways, sliding on the water film.

Figure 11(e) shows the next stage after Figure 11(d). The water flow continues to bounce off the dirt, and the momentum of the water flows continues to cancel each other out. A water film also forms on the dirt, and part of the continuous water flow slides on the water film, causing the dirt to become hidden under the water film.

When the state reaches FIG. 11(e), the state of FIG. 11(e) is continued thereafter.
It can be seen that the foamy water flow generated by the water discharge nozzle 200, which is a pulsating fluid or intermittent fluid generating device according to Example 2 shown in Figure 10, has a higher cleaning effect than the cleaning effect of the conventional simple continuous water flow shown in Figure 11.
As described above, a pulsating fluid or an intermittent fluid is generated from a continuous fluid by applying the principle of the pulsating fluid or intermittent fluid generating device.

As the water-discharging nozzle 200, which is a water-saving pulsating or intermittent fluid generating device, in addition to the configurations shown in Figs. 8 and 9, there is also an example configuration shown in Fig. 12.
In the configuration example shown in FIG. 12, compared to FIG. 8, the injection angle of the injection mechanism 210 is set to be approximately parallel or at a slight angle to the side wall surface where the introducing hole 241 is provided.
In the configuration example of FIG. 12, a through hole 241 is provided in a side wall surface positioned approximately parallel to the ejection destination of the ejection mechanism 210.

FIG. 13 is a diagram simply illustrating a state in which water is made to flow from a water supply pipe 110 to a water discharge nozzle 200 which is a generating device for generating a pulsating fluid or an intermittent fluid shown in FIG.
As shown in Fig. 13, the basic movement is that a powerful water flow from the injection mechanism 210 flows into the airtight space cavity 220, and the injection fluid shot out from the injection mechanism 210 flows along the side wall surface of the space cavity 220 approximately parallel to or at a slight angle to the side wall surface on which the introduction hole 241 is provided, and the opening of the introduction hole 241 is sealed by the injection fluid flowing downward. Due to the influence of the internal air pressure, as shown in Fig. 13(a), the blowing of outside air from the introduction hole 241 into the space cavity 220 through the air vent 240 and the closing of the opening of the introduction hole 241 by the liquid flow film of the injection fluid alternately occur, and the states shown on the left and right in Fig. 13(b) are repeated alternately.

Further, as the water-discharging nozzle 200 which is a water-saving type pulsating fluid or intermittent fluid generating device, there is also an example configuration shown in FIG.
The jetting angle of the jetting mechanism 210 shown in FIG. 14 is set so that the jet destination or jet droplet destination of the jetted fluid is the introducing hole 241 or its vicinity, and collides with the outside air blown in from the introducing hole 241 .

FIG. 15 is a diagram simply illustrating a state in which water is supplied from a water supply device such as a water faucet to the pulsating or intermittent fluid generating device 200 shown in FIG. 14 to generate a water flow.
As shown in Fig. 15, the basic movement is that a water flow from the injection mechanism 210 flows into the airtight space cavity 220, and since the injection angle is set so that the injection destination or injection droplets of the injection fluid are at or near the introduction hole 241, a part of the injection fluid being injected with force or the injection droplets collide with the outside air being blown in with force at or near the introduction hole 241. Note that this collision is not caused by accidental scattering of the droplets inside the injection mechanism 210 near the introduction hole, but is controlled to intentionally cause continuous collisions by the angle of the injection mechanism 210.

As shown in FIG. 15, the injected fluid flows downward in the spatial cavity 220 while drawing in and pushing out the air inside, causing a drop in the air pressure inside the spatial cavity 220. On the other hand, as shown in FIG. 15, outside air is blown into the spatial cavity 220 from the air passage 240 through the through hole 241, causing a collision between the injected fluid and the outside air being blown in. This collision and the drop in air pressure and the recovery of air pressure inside the spatial cavity do not maintain an orderly equilibrium state, and the amount and direction of the fine powder droplets are not completely constant during the collision, and subtle differences occur from moment to moment. Since this collision has momentum, the influence of fluctuations and unevenness in the flow of the injected fluid and fluctuations and density in the flow of the outside air causes the air inside to vibrate or pulsate dynamically. Therefore, the states shown on the left and right of FIG. 15(b) are repeated alternately.

Further, as a water-saving type pulsating fluid or intermittent fluid generating device, there is also a configuration example shown in FIG.
Of the components shown in FIG. 16, the jetting angle of the jetting mechanism 210 is such that the jet destination or jet droplet destination of the jet fluid is slightly below the introducing hole 241 .

FIG. 17 is a diagram simply illustrating a state in which water is supplied from a water supply device such as a water faucet to the pulsating or intermittent fluid generating device 200 shown in FIG. 16 to generate a water flow.
As shown in Fig. 17, the basic movement is that a water flow from the injection mechanism 210 flows into the airtight space cavity 220, and the injection angle is set so that the injection destination or injection droplets of the injection fluid hit the wall surface slightly below the introduction hole 241, but if the size of the internal air cavity 220 is not excessively large, and depending on the shape and angle of the wall surface, the injection fluid may be reflected and scattered with force. The splashed injection droplets then cover the introduction hole 241. Here, it is assumed that the shape and angle of the air cavity 220 satisfy the scattering conditions.
Note that this scattering of the injected water flow is not the result of accidental scattering of internal droplets near the introduction hole, but is intentionally controlled so that the introduction hole 241 is sealed continuously by the relationship between the angle of the injection mechanism 210 and the shape and angle of the air cavity 220.

17B shows a state in which the opening of the introducing hole 241 is sealed by a liquid flow film formed by the scattering jet liquid flow. In this state, the blowing of outside air from the introducing hole 241 momentarily stops or decreases, while the air is pushed downward from the space cavity 220, so that the air pressure in the narrow and sealed space cavity 220 decreases.
As shown in the left diagram of FIG. 17B , the ejected fluid flows downward within the spatial cavity 220 while drawing in and pushing out the air therein, causing a drop in the air pressure within the spatial cavity 220 .

On the other hand, as shown on the right side of FIG. 17(b), when the air pressure drop becomes large, outside air is blown into the spatial cavity 220 from the introduction hole 241, breaking through the scattering water flow sealing the introduction hole 241. In other words, the state on the right side of FIG. 17(b) is a state in which the air pressure drop in the spatial cavity 220 becomes large, and the force of drawing the outside air into the spatial cavity 220 becomes large, so that the outside air overcomes the momentum of the scattering jet fluid sealing the introduction hole 241 and is blown into the spatial cavity 220 from the introduction hole 241. In this state, the scattering jet fluid is blown away in an instant, and the air pressure in the spatial cavity 220 is restored by the blowing in of the outside air.

As the air pressure inside the spatial cavity 220 recovers, the force of drawing the outside air into the spatial cavity 220 decreases, and the momentum of the scattering jet fluid that reaches the opening of the introduction hole 241 eventually becomes stronger, and the jet fluid or jet droplets reach the vicinity of the opening of the introduction hole 241, returning to the state shown on the left side of Figure 17 (b).

In this way, the repeated fluctuations between the air pressure drop state with less outside air blowing in on the left side of Figure 17(b) and the air pressure recovery state with more outside air blowing in on the right side of Figure 17(b) create a rhythm of varying strengths in the blowing of outside air, generating a pulsating or intermittent flow of foamy water from the jetted fluid. As a result, the jetted fluid passing through also becomes a pulsating flow, or an intermittent pulse-like flow that is interrupted intermittently.

It will be understood that various modifications may be made without departing from the scope of the present invention. The scope of the present invention is therefore limited only by the scope of the appended claims.

REFERENCE SIGNS LIST 100 Water discharge device 110 Water supply pipe 120 Spout 130 Hose body 140 Water discharge head body 141 Water discharge head body 142 Head connector 150 Arm support 151 Arm body 152 Support connector 160 Water supply operation unit 200 Water discharge nozzle

Claims (9)

A spout that supplies water from a water supply pipe;
A flexible and bendable hose body connected to the spout;
A water discharge head body connected to the hose body and discharging water guided from the water supply pipe;
An arm support extending from the spout;
In a configuration including a water supply operation unit,
The arm support is provided with a support connector at the tip of the main body of the arm support, the surface facing the water spouting head body being concave,
The water spouting head body is provided with a head connector having a convex shape on an outer surface that faces the support connector of the arm support,
The head connecting body of the water spouting head body is provided with a recess around the convex shape that is recessed below the outer peripheral wall surface of the water spouting head body,
A water-discharge device characterized in that the water-discharge head body is removably supported from the arm support via a connection between the concave shape of the support connector of the arm support and the convex shape of the head connector of the water-discharge head body. The water discharge device according to claim 1, characterized in that the inner surface of the concave shape of the support connector of the arm support is a partial spherical shell shape that follows a spherical surface, and the outer surface of the convex shape of the head connector of the water discharge head body is a spherical surface that is connected along the spherical surface. The water discharge device according to claim 2, characterized in that the size of the convex shape of the head connector of the water discharge head body is larger than the size of the concave shape of the support connector of the arm support, and the support connector of the arm support can slide freely up, down, left, and right while connected along the surface of the head connector of the water discharge head body. The water discharge device according to any one of claims 1 to 3, characterized in that the support connector at the tip of the arm support and the head connector of the water discharge head body are connected in a detachable manner by magnetic force, with one being made of a magnetic material and the other being made of a material with magnetic attraction, or both being made of magnetic materials that can be attracted to each other, The water discharge device according to any one of claims 1 to 3, characterized in that the arm support is structured with a movable mechanism for at least vertical tilt with respect to the spout at the connection between the arm support and the spout. The water discharge device according to claim 5 , characterized in that the spout is provided with at least a swivel movable mechanism at least in a portion below the connection portion with the arm support. The water discharge device according to any one of claims 1 to 3, characterized in that an LED light emitter is incorporated in a part of the water discharge head body, and the structure allows light to be projected from the water discharge head body. The water discharge device according to any one of claims 1 to 3, characterized in that it is equipped with a sensor related to water usage and an IoT system that accumulates or transmits data obtained from the sensor. A water discharge nozzle for generating a pulsating fluid or an intermittent fluid is provided within the water discharge head body ,
The water discharge nozzle is a closed space located downstream of the injection mechanism for injecting a fluid such as a liquid or gas, and is provided with a fluid discharge part below the closed space, and a vent hole on the side of the closed space that leads to an air passage for conducting outside air, and is provided with a spatial cavity filled with outside air,
A water discharge device as described in any one of claims 1 to 3 , characterized in that the jet fluid is formed so that a portion of the jet fluid flows while temporarily covering the introduction hole due to changes in the destination of the jet fluid of the injection mechanism or due to collision of the jet fluid with the wall surface of the spatial cavity, thereby restricting the amount of outside air passing through the introduction hole, and the repeated fluctuations between a temporary pressure drop in the spatial cavity caused by the jet fluid flowing downward within the spatial cavity and a temporary pressure recovery in the spatial cavity due to the blowing of outside air from the introduction hole create a rhythm of strength and weakness in the blowing of the outside air, thereby generating a pulsating flow or intermittent flow of the fluid from the injection mechanism.

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