JP3411337B2 - Jet squirting device for bathtub hot water purifier - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub apparatus and, more particularly, to a bathtub hot water in which the hot water in the bathtub is subjected to a cleaning treatment such as filtration to keep the hot water constantly clean. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jet jetting device attached to the end of a fountain pipe in order to jet hot water, which has been subjected to the cleaning process, back into a bathtub as a jet stream. 2. Description of the Related Art Recently, hot water in a bathtub is pumped by a circulation pump, air is mixed into the hot water from a jet jet pipe of a jet jetting device, and jetted again as a jet stream into the bathtub.
So-called bubble bath devices have become widespread. On the other hand, hot water in a bath tub is pumped up by a circulation pump, dirt is filtered by a filtration device, heated by a heater, and further sterilized by ozone, so that the hot water is constantly kept clean so that the bath can be taken at any time for 24 hours. Hot water purifiers have also been developed and used. In this bath tub hot water purifier, a jet jetting device is also provided. Rather than simply jetting hot water having been subjected to the cleaning treatment into the bath tub, air is mixed and jetted as a jet stream to form a bubble bath. The number of devices that can be enjoyed has increased. [0005] An example of a bath tub hot water cleaning device provided with a jet ejection device is as shown in FIG. 12. In this device, a circulating pump 7 operates to draw hot water 2 in a bath tub 1 and a pre-filter 4 attached to a tip thereof. The water is pumped up by the hot water pipe 3, the dirt is first filtered by the filtration device 5, then heated by the heater 6 so as to maintain a predetermined temperature, and the heated hot water is basically jetted again from the hot water pipe 8 to the bathtub 1. It is configured. [0006] A jet jetting device 9 is attached to the end of a hot water pipe 8 of this device, and an intake pipe 10 provided with a solenoid valve 11 is attached to the jet jetting device 9. The ozone tube 12 to which the ozonizer 13 is attached is branched. In the device configured as described above, the solenoid valve 1
If both 1 and 12 are closed, jet ejection device 9
The hot water is spouted in a normal state, but when the solenoid valve 11 is open, air is sucked from the intake pipe 10 and a jet stream in which air is mixed into the hot water is spouted. Further, when the solenoid valve 14 is opened, hot water mixed with air ozonized by the ozonizer 13 is jetted from the jet jetting device 9 to the bathtub 1 as a jet stream, and the hot water 2 is efficiently produced. Ozone sterilized. FIG. 6 shows an example of a conventional jet jetting device 9 as shown in FIG. 6. Numeral 15 denotes a water pipe to which the hot water pipe 8 is connected and into which hot water flows. An aspirator taper pipe 16 whose diameter is made smaller as the pipe diameter increases in the downstream direction is connected, and a negative pressure pipe 17 having an intake port 18 to which the intake pipe 10 is connected is connected to the tip of the aspirator taper pipe 16. . Reference numeral 19 denotes a jet nozzle. The jet nozzle 19 mixes air with hot water and jets a jet stream. The jet nozzle 20 has a spherical inner and outer surface extending rearward from the rear end of the jet jet pipe 20. And a fitting collar 21 of the same. The jet nozzle 19 is fitted to the negative pressure tube 17 first by fitting a spherical surface on the outer end to a spherical tip, and then by fitting a nozzle cover 22 having a spherical inner surface to the outer surface by pressing the spherical surface onto the outer surface so as to be rotatable. . In the jet jetting device constructed as described above, the hot water sent from the hot water pipe 8 is supplied to the water pipe 15.
Then, the flow velocity is increased by the aspirator taper pipe 16, and then enters the jet ejection pipe 20 of the jet nozzle 19 via the negative pressure pipe 17. When the flow rate of the hot water is increased by the aspirator taper pipe 16, a negative pressure is formed inside the negative pressure pipe 17, and air is sucked from the suction port 18 through the suction pipe 10. The air is mixed with the hot water and jetted into the bathtub as a jet stream, creating a bubble bath. In such a jet ejection device,
As described above, since the jet nozzle 19 is rotatably mounted, as shown in FIG. 7, the jet nozzle 19 is turned to rotate the jet nozzle 20 according to the bather's preference.
Can change the direction of the jet flowing out from FIG. 8 shows another example of a conventional jet ejection device in which the direction of the jet nozzle can be changed. Numeral 23 denotes a water guide pipe to which the hot water pipe 8 is connected and into which hot water flows. At the tip of the water guide pipe 23, a spherical nozzle cover body 24 extends forward. And a nozzle cover lid for fitting a jet nozzle. Reference numeral 26 denotes a jet nozzle. The jet nozzle 26 has an aspirator taper pipe 27 whose diameter at the rear end becomes narrower toward the downstream and a negative pressure pipe having a spherical intake port 29 covering the aspirator taper pipe 27. And a jet ejection pipe 3 extending forward of the negative pressure pipe 28.
0 are integrally formed. In the jet jetting device thus constructed, the jet nozzle 26 is being held down by the nozzle cover lid 25 which is fitted from the front to the nozzle cover body 24 extending forward of the water guide pipe 23 and is connected thereto. The spherical fitting and rotatable mounting are performed, and the direction of the jet ejection pipe 30 can be changed as shown in FIGS. However, in the jet ejecting apparatus having the above-described structure, when the direction of the jet ejecting pipe is changed, the momentum of the jet flow is weakened, and at the same time, the amount of sucked air is reduced. There was a drawback that the function as a bubble bath fell. First, in the example of the jet ejection device having the configuration shown in FIG. 6, when the direction of the jet ejection tube 20 is changed, a state as shown in FIG. 7 is obtained, and even if the direction of the jet ejection tube 20 changes, the aspirator taper tube is changed. Since the directions of the vacuum pipe 16 and the negative pressure pipe 17 are not changed, the hot water goes straight, and the jet flow is weakened against the side wall of the jet ejection pipe 20. At the same time, the degree of the negative pressure formed in the negative pressure pipe 17 is reduced, so that the hot water is sucked. The amount of air that is consumed also decreases. Next, in the example of the jet ejection device having the configuration shown in FIG. 8, as shown in FIGS. 9 and 10, when the direction of the jet ejection tube 30 is changed, the intake port 29 moves together and the intake tube 10 is bent. Therefore, it is necessary to keep a sufficient space between the intake pipe 10 and the fountain pipe, and the intake pipe 10 may be bent and cracked many times. Further, since the nozzle cover lid 25 hinders the rotation of the jet nozzle 26, the nozzle cover lid 25 can move about 10 times in any direction.
The direction of the jet ejection pipe 30 can be changed only to a degree. Further, when the jet nozzle 26 is rotated to change the direction of the jet ejection pipe 30, the aspirator taper pipe 27 is rotated by the same large rotation as the negative pressure pipe 28 fitted to the nozzle cover 24 and the nozzle cover lid 25. Rotate with a radius, the rear end protrudes on the one hand with respect to the hot water flow path,
On the other hand, it is in a retracted state. In such a state, the diameter of the hot water from the water guide pipe 23 is sharply reduced by the protruding portion on the protruding side, and the pipe diameter is rapidly increased on the retracted side with respect to the aspirator taper pipe 27. It will be in a state of inflow. It is well known that a sudden change in the diameter of the tube in the flow path of the fluid causes a large hydrodynamic resistance, and therefore, the above-described problem occurs at the hot water inlet of the aspirator taper tube 27. Such a rapid increase or decrease in the tube diameter weakens the jet flow. If the momentum of the jet flow becomes weaker, the intake power naturally becomes weaker as described above. In addition, since the intake pipe is bent and has resistance, the amount of air taken in becomes smaller. In particular, as shown in FIG.
When the nozzle 5 is removed, the jet ejection pipe 30 can be turned up to about 20 degrees. However, when the angle of rotation is increased, the bending of the intake pipe becomes more severe, and of course, The resistance of the aspirator taper tube 27 to the flow of hot water when one of the ends protrudes into the flow path of the hot water and the other ends retracts further increases, and the momentum of the jet flow is further reduced. The jet squirting device in the bath tub hot water cleaning device is difficult to obtain a strong jet flow because hot water circulates through various cleaning processing devices and receives a large resistance. If the jet flow is weakened due to the defect of the jet ejection device itself, it becomes difficult to obtain an increasingly strong jet flow, and the function as a bubble bath is reduced. The present invention solves the above-mentioned drawbacks of the prior art, and can freely change the direction of the jet jet pipe at a relatively large angle without weakening the jet flow. It is an object of the present invention to provide a jet ejection device that does not impair the function of the jetting device. According to the present invention, a hot water in a bath tub is pumped from a hot water suction pipe and subjected to a cleaning treatment such as filtration of dirt. In the bathtub hot water purifying device to be jetted again into the bathtub, the jet jetting device has an aspirator taper tube having a tapered and fitted concave surface at a tip portion to increase the flow speed of the hot water, and an air inlet for covering the aspirator taper tube. The nozzle cover and the nozzle cover are rotatably attached to the nozzle cover via a fitting flange by spherical fitting, and the air sucked in from the inlet of the nozzle cover is mixed with the hot water that has flowed from the aspirator taper tube at a high flow rate and jetted. A jet squirt tube for squirting into the bathtub as a flow is provided, and the jet squirt tube is
A ventilation plate having a plurality of ventilation holes in the peripheral portion is provided in the rear opening so that water can pass therethrough, and an aspirator thin tube having a fitting convex surface from the center of the ventilation plate to a rear end portion is made to coincide with the jet ejection tube and the axis. The problem can be solved by extending rearward and fitting the aspirator thin tube rear end and the aspirator taper tube front end spherically and rotatably connected to the aspirator taper tube. The present invention is configured as described above.
Since the aspirator tube for reducing the diameter of the pipe and increasing the flow rate of the hot water to flow the hot water into the jet ejection pipe is fixed to the rear end of the jet ejection pipe as a thin pipe and is configured to rotate integrally with the jet ejection pipe, The direction of the jet ejection pipe is always the same as the direction in which the hot water flows into the jet ejection pipe from the narrow pipe, and the momentum does not collide with the side wall of the jet ejection pipe to reduce the momentum. Next, when the jet nozzle is rotated, the rear end of the aspirator thin tube protrudes from the hot water flow path on one side and retracts on the other side, which is the same as the conventional example. Since it turns inside the fitting flange fitted with the cover, the turning radius naturally becomes small, and even if the turning angle is increased, the amount of protrusion and retraction described above is small, and Has little effect. Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view showing a state in which a jet jetting device 34 of the present invention is mounted on a unit main body 32 and covered with a unit cover 33 to form a jetting water unit 31. This is a water pipe provided with a flange 36. Reference numeral 37 denotes an aspirator taper tube which is connected to the water guide tube 35 and has a smaller diameter as it goes toward the tip to increase the flow speed of the hot water. The tip of the aspirator taper tube 38 has a spherical aspirator tube of a jet nozzle described later. It has a concave shape for matching. Reference numeral 38 denotes an aspirator taper pipe which covers the outer circumference of the aspirator taper pipe 37, and an intake port 39 to which an intake pipe is connected is provided on the outer peripheral surface.
The nozzle cover is provided with a flange 40 at the rear end. The inner surface of the nozzle cover 38 has a concave shape in order to spherically fit a fitting flange of a jet nozzle described later. Reference numeral 41 denotes a jet nozzle, and reference numeral 42 denotes a jet ejection pipe. At the rear end of the jet ejection pipe, a ventilation plate 43 provided with a plurality of ventilation holes 44 on an outer peripheral portion is provided as shown in FIG. An aspirator thin tube 45 for increasing the flow rate of hot water extends rearward from the center of the ventilation plate 43, and a rear end of the aspirator thin tube 45 has a concave surface of the aspirator taper tube 37 described above. Has a convex shape to be spherically fitted to the tip of the lens. A fitting collar 46 for covering the outer periphery of the aspirator thin tube 45 extends rearward from the rear end of the jet ejection pipe 42, and the outer surface of the fitting collar 46 is a concave surface of the nozzle cover 38 described above. It has a convex shape because it fits spherically with the inner surface of the. The jet ejection device 3 configured as described above
4, first, the jet nozzle 41 is fitted to the nozzle cover 38 with the jet ejection pipe 42 facing forward, and then the nozzle cover 3 fitted with the jet nozzle 41 is fitted.
After the assembly 8 and the water pipe 35 are assembled by aligning the mounting holes of the flanges 36 and 40 and integrated, the unit 8 is attached to a boss 48 provided on the unit main body 32 with screws 49 via the mounting holes. At the time of this assembly, the aspirator taper pipe 37 has a small-diameter front end fitted to the rear end of the aspirator thin tube 45, and a large-diameter rear end connected via the packing 47.
5 and is sandwiched between the water pipe 35 and the jet nozzle 41 to connect them. FIG. 3 is a perspective view of the jet ejection device 34 constructed as described above. The jet nozzle 41 has a fitting flange 46 with a jet cover 38 and an aspirator thin tube 45 with a rear end. 37
Are spherically fitted to the tips of the two, and are in a state of being rotatably mounted. When the packing 48 is interposed between the rear end of the aspirator taper pipe 37 and the front end of the water guide pipe 35, it is possible not only to prevent water leakage at this joint but also to crush the packing 47. Since the aspirator taper tube 37 is constantly pushed in the direction of the jet nozzle 41 by the repulsive force generated by this, the play caused by the manufacturing error and the wear due to the rotation is absorbed, and the jet nozzle 41 can be rotated smoothly and continuously. is there. In the jet jetting device 34 having the above-described structure, the hot water that has entered the water guide pipe 35 from the hot water pipe is flowed at a high speed by the aspirator taper pipe 37, and the hot water is fed to the jet jet pipe 42 of the jet nozzle 41 by the aspirator. It enters through a thin tube 45. When hot water with a high flow rate enters, the jet ejection pipe 42
A negative pressure is formed in the inside, and air is sucked from an intake port connected to the intake pipe by the suction force of the negative pressure, and the sucked air passes through the ventilation hole 44 of the ventilation plate 43 and the jet ejection pipe 4.
2 and mixed with hot water to form a jet stream, which is jetted into a bathtub. When it is desired to change the jetting direction of the jet flow from the jet jetting tube 42, as shown in FIG. 2, the jet nozzle 41 does not impede the rotation due to the collision of parts. It can be rotated properly at a fairly wide angle. In this case, the aspirator thin tube 4 for reducing the diameter of the pipe to increase the flow rate of the hot water so that the hot water flows into the jet ejection pipe.
5 rotates integrally with the jet ejection pipe 42, so that the direction of the jet ejection pipe 42 and the direction in which the hot water flows from the asvilleta thin pipe 45 into the jet ejection pipe 42 are constantly the same, as in the case where the directions are different. And the hot water is jet jet 4
There is no way that the momentum can be reduced by colliding with the side wall of the second. When the jet nozzle 41 rotates,
The rear end of the aspirator thin tube 45 is the aspirator taper tube 3
It is the same as in the conventional example that one side protrudes and the other side retracts with respect to the flow path of the hot water from 7, but the aspirator thin tube 45 is extremely formed inside the fitting flange 46 fitted with the nozzle cover 38. Since the rotation is performed with a small rotation radius, even if the rotation angle is large, the amount of protrusion and retraction of the rear end of the hot water into the flow passage is small, and the flow of the hot water is hardly affected. As described above, the jet ejection device 34
In order to facilitate installation into the bathtub and piping, the unit is attached to the unit body 32 and the front surface is covered with a unit cover 33 to form a fountain unit 31. A perspective view of the unit with the unit cover 33 covering the front surface of the fountain unit 31 removed. FIG. 4 is a perspective view showing a state where the unit cover 33 is attached. The fountain unit 31 has a suction cup 50 rotatably attached to the back surface of the unit body.
It is designed to be freely and detachably attachable to the corner of the bathtub through the tub, and further passes through the hot water suction pipe 3. The hot water unit is integrated with the bathtub so that it can be detachably attached. The present invention has the above-described structure and operation. With a very simple structure, the direction of the jet ejection pipe can be freely changed at a considerably large angle, and even if the direction is changed. There is provided a jet ejecting apparatus in which the momentum of the jet flow is hardly reduced as in the related art. Such a jet spraying device has a large resistance because various cleaning processing devices are provided in the circulation path of the hot water, and it is difficult to obtain a jet flow with a strong momentum. Ideal for mounting at a fountain.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial vertical sectional view of a fountain unit, FIG. 2 is a partial vertical sectional view of a fountain unit jet nozzle rotating state, FIG. 3 is a perspective view of a jet ejection device, and FIG. FIG. 5 is a perspective view of a state where a unit cover is removed, FIG. 5 is a perspective view of a state where a fountain unit cover is attached, FIG. 6 is a longitudinal sectional view of a first conventional example, and FIG. FIG. 9 is a longitudinal sectional view of a second conventional example jet nozzle rotating state, FIG. 10 is a longitudinal sectional view of a second conventional example jet nozzle rotating state, and FIG. 11 is a second conventional example jet nozzle. FIG. 12 is a vertical sectional view of a rotating state, and FIG. [Description of Reference Numerals] 8 Hot water pipe 34 Jet jetting device 35 Water guide pipe 37 Aspirator taper pipe 38 Nozzle cover 39 Inlet 41 Jet nozzle 42 Jet jet pipe 43 Vent plate 44 Vent hole 45 Aspirator thin tube 46 Fitting flange

Claims (1)

(57) [Claims] [Claim 1] The hot water in the bath tub is drawn up from a hot water suction pipe and subjected to a cleaning treatment such as filtration of dirt, and then, as a jet stream from a jet jetting device attached to the end of the hot water pipe. In a bathtub hot water purifying device to be spouted into a bathtub, a jet spouting device is
An aspirator taper tube with a tapered fitting end at the tip to increase the flow rate of hot water, a nozzle cover with an air inlet that covers the aspirator taper tube, and a spherical fit through the fitting flange to the nozzle cover for spherical rotation A jet ejection pipe is provided, which is freely attached, mixes the air taken in from the air inlet of the nozzle cover with the hot water whose flow velocity has been accelerated from the aspirator taper pipe and ejects the jetted water as a jet stream to the bathtub. A ventilation plate having a plurality of ventilation holes in the peripheral portion is provided in the rear opening so that water can pass therethrough, and an aspirator thin tube having a fitting convex surface from the center of the ventilation plate to a rear end portion is made to coincide with the jet ejection tube and the axis. Extended backwards,
A jet jetting device for a bathtub hot water purifier, wherein the rear end of the aspirator thin tube and the front end of the aspirator taper tube are spherically fitted and rotatably connected to the aspirator taper tube.