JP4291814B2 - Jet injection device - Google Patents

Description

  The present invention relates to a jet injection device that generates a jet jet in a bathtub.

  2. Description of the Related Art Conventionally, as a jet jet for a bathtub, a jet jet device that obtains a massage effect by mixing a jet water flow and air by jet jet is known (see Patent Document 1).

JP 2001-145676 A

However, the jet injection device disclosed in the above-mentioned Patent Document 1 is such that air is mixed with a jet water stream and ejected, and is most likely to be generated in a place where air at 40 ° C. to 43 ° C. is present. Legionella bacteria may be mixed, which is not preferable for hygiene.
Furthermore, in the case of a conventional jet of water only, the jet is limited to a narrow range, and it is difficult to generate a jet with a pulsating feeling over a wide range, and a sufficient massage effect can be obtained. There wasn't.

  In addition, when installing a jet injection device that generates a pulsating jet of water only in an existing bathtub, the time and expense of construction work such as breaking the bathtub wall, moving pipes, and replacing pumps can be saved. If necessary, it is not preferable.

  The present invention has been made in view of such circumstances, and there is no possibility of causing Legionellosis, which is preferable in terms of hygiene. It is an object of the present invention to provide a jet injection device that can provide a suitable massage effect by the water pressure received by a person and can be easily attached to piping on a bathtub wall in construction.

In order to solve the above problems, a jet injection device according to the present invention is a jet injection device that is attached to a pipe that is open to a bathtub wall surface and injects pressurized water from a pressurized water supply means forward into the bathtub as a jet injection. A mounting portion that has a through hole inside and is mounted in the pipe, and a bottom surface that is in front of the mounting portion and has a bottom wall through hole that is in contact with the wall surface of the bathtub and has a base end surface in contact with the bath wall surface. A main body in which a wall and a cylindrical peripheral wall having a surrounding wall space are integrally formed, and a tip is tapered so that the diameter of the distal end is smaller than the diameter of the proximal end. The nozzle formed in the through-hole of the mounting portion, the nozzle fixed to the front of the mounting portion in the through hole of the mounting portion, and the front end of the peripheral wall A space in the surrounding wall that is attached to and formed in the surrounding wall A covering member comprising: a lid portion covering the front; an umbrella portion covering the outside of the peripheral wall; and an edge portion of which is in contact with the bathtub wall surface to form a rear space surrounded by the peripheral wall and the bathtub wall surface; It is in a space in the surrounding wall formed in the wall, and is composed of a rotating body that can rotate around the center, and a front chamber is formed between the front end surface of the rotating body and the inner surface of the lid, and the rotating body A rear chamber is formed between the base end surface and the front end surface of the nozzle. A central communication hole is formed in the lid portion to communicate the front space in front of the lid portion and the front chamber. A peripheral communication hole is formed to communicate the front space in front and the rear space formed inside the umbrella portion, and penetrates the bottom wall in the radial direction to communicate the rear space of the umbrella portion and the rear chamber. And a support portion that is in point contact with the proximal end surface of the lid portion on the distal end surface of the rotating body. Is provided, the rotating body of the proximal surface and the rotating body of the distal end surface and communicating with the injection water conducting hole a is formed, the water jet through hole is positioned in front of the nozzle in the rotating body proximal end, rotating the body In the present invention, it is formed so as to be inclined in the circumferential direction.

  In addition to the above-described configuration, the jet spray device of the present invention is preferably characterized in that the angle of inclination of the spray water conduction hole of the rotating body is in the range of 15 degrees to 25 degrees.

  Further, in addition to the above configuration, the jet injection device of the present invention is preferably attached to the pipe in contact with the bathtub wall surface where the end edge of the umbrella part and the bottom wall base end face of the main body are installed, The contact surface of the end edge of the umbrella part and the contact surface of the base end surface of the bottom wall of the main body are on the same plane.

  According to the present invention, there is no fear that legionellosis will occur, which is preferable for hygiene. Furthermore, even if jet injection is performed only with a water flow that does not contain air, it is possible to obtain a jet with a sense of pulsation that is rich in variation, and the water pressure of the jet received by the bather can provide a massage effect. Furthermore, since it can be constructed simply by fitting into an existing pipe without destroying the bathtub wall, the installation is simple, space saving and excellent economic efficiency.

  Hereinafter, although the jet injection device of the present invention will be described with reference to the drawings, the present invention is not limited to only those described in these embodiments. FIG. 1 is an exploded perspective view of a jet injection device according to an embodiment of the present invention, and FIG. 2 is an assembled vertical sectional view of the jet injection device according to an embodiment of the present invention installed in an existing pipe opening. It is.

  As shown in FIG. 1, the jet injection device A is generally composed of a main body 1, a covering member 2, a rotating body 4, and a nozzle 5. As shown in FIG. 2, a chamber 3 that is a cavity is formed by the peripheral wall 13 of the main body 1 and the cover portion 21 of the covering member, and a rotating body 4 that is rotatable around the center of the nozzle is mounted in the chamber 3. Has been.

  In the jet injection device A according to the present invention, the pressurized water W supplied from the pressurized water supply means B is ejected from the nozzle 5 and flows into the chamber 3, and the rotating body 4 mounted in the chamber rotates, A pulsating jet is ejected into the bathtub C from the central communication hole of the lid portion 21 of the member 2. Only a water flow is mixed in the chamber 3 and air is not mixed.

  As shown in FIG. 2, the main body 1 has a nozzle 5 having an injection port attached to the base end thereof. The nozzle 5 is formed in a tapered shape with the diameter of the injection port 51 at the distal end being smaller than the diameter of the proximal end 52.

  As for the main body 1, the attaching part 11, the bottom wall 12, and the surrounding wall 13 are integrally formed from the base end side. The attachment portion 11 attaches the jet injection device A to the pipe of the bathtub, has a cylindrical shape having a through hole 111 inside, and has an external thread 110 that is threadedly engaged with the internal thread 80 of the pipe on the outer peripheral surface. Is formed. The nozzle 5 is inserted into the through hole 111 of the attachment portion 11 with the diameter of the injection port 51 being reduced in the distal direction, and is fixed to the attachment portion 11. The through hole 111 may be formed in a conical shape having a large diameter on the base end side, and may be fitted from the base end side.

The attachment portion 11 is provided so as to protrude from the base end surface 12 a of the bottom wall 12, and a bottom wall through hole 121 continuous with the through hole 111 of the attachment portion 11 is formed in the bottom wall 12. The base end surface 12a around the mounting portion 11 of the bottom wall 12 is formed so as to abut on the bathtub wall surface or the front end surface of the pipe.
A main body communication hole 122 is formed in the bottom wall 12 so as to penetrate the space between the outer surface 12 b and the bottom wall through hole 121 in the radial direction. A plurality of main body communication holes 122 are provided in the bottom wall 12 so as to be evenly arranged in the circumferential direction, and communicate with the external space and the internal space of the main body 1.

  The peripheral wall 13 is integrally formed so as to stand from the peripheral edge of the front end side of the bottom wall 12 in the front end direction, and a step portion 131 is formed inside the peripheral wall 13 and on the front end side of the bottom wall 12 so as to rotate. 4 is controlled to swing in the proximal direction.

  The pressurized water W supplied from the pressurized water supply means B (not shown) is further accelerated by the nozzle 5 and is jetted into the chamber 3 with vigor. The chamber 3 is a cavity formed by the peripheral wall 13 of the main body 1 and the lid portion 21 of the covering member. That is, as shown in FIGS. 1 and 2, the covering member 2 is provided at the front end of the peripheral wall 13 of the main body 1. The lid 21 and the front end side surface of the peripheral wall 13 of the main body are screwed together to form the chamber 3. In the illustrated example, it is fixed by screws 7.

  The covering member 2 is a lid 21 that covers a space (chamber) that is surrounded by a peripheral wall 13 at the center, and the outer periphery of the lid 21 is curved in the proximal direction (rightward in FIG. 2). An umbrella portion 22 that covers the outer diameter portion is formed. A support portion 210 a that supports a rotating body 4 to be described later is formed at the center of the lid portion 21.

A rotating body 4 that is rotatable around the center of the nozzle 5 is mounted in the chamber 3, and the base of the support part 210 a of the lid center part 210 is supported by a support member 40 that is semi-embedded at the center of the front end surface of the rotary body. It is rotatably supported at the end face.
The rotating body 4 is a cylindrical body made of a thermoplastic synthetic resin, and is formed of an acetal resin in this embodiment. As described above, the support member 40 is semi-embedded at the center of the distal end surface of the rotator 4, and makes point contact at the base end side end surface of the support portion 210a of the lid center portion 210 so that the rotator 4 can rotate. I support it.
The supporting member 40 is not limited as long as it is a material that does not rust and is in point contact with the base end side end surface of the lid center portion 210. In this embodiment, the material is stainless steel, and the spherical member is fixed to the center of the tip surface in a semi-embedded state, but may be conical.

  Around the main body, a peripheral communication hole 221 that communicates the front space 6a of the umbrella part and the rear space 6b of the umbrella part is provided. In the present embodiment, 16 pieces are provided evenly in the circumferential direction at intervals in the umbrella portion 22 of the covering member 2. Water in the bathtub C flows into the rear space 6b of the umbrella portion 22 through the peripheral communication hole 221.

The water in the bathtub that has flowed into the rear space 6 b of the umbrella portion 22 flows into the rear chamber 32 of the rotating body 4 through the main body communication hole 122 provided in the bottom wall 12. That is, the bottom wall 12 is provided with a main body communication hole 122 that communicates the rear space 6 b of the umbrella part 22 and the rear chamber 32 of the rotating body 4. A large number of main body communication holes 122 are provided on the bottom wall 12 equally in the circumferential direction, and twelve in the embodiment.
The water in the bathtub C that has flowed into the rear space 6b of the umbrella portion from the surrounding communication hole 221 flows into the rear chamber 32 of the rotating body through the twelve main body communication holes 122 provided in the bottom wall 12, and is supplied with pressurized water. Will be joined with the pressurized water W supplied from.

  FIG. 3 a is a diagram illustrating the distal end surface side of the rotating body 4, and FIG. 3 b is a diagram illustrating the proximal end surface side of the rotating body 4. Inside the rotator 4, a spray water conduction hole 41 through which the pressurized water ejected from the nozzle 5 is conducted is formed to communicate from the base end surface of the rotator 4 to the distal end surface. In this embodiment, as shown in FIG. 3, two jet water conduction holes 41 are provided, but the number is not limited to two.

  The diameters of the inlets 411 and 411 of the two jet water conduction holes 41 and 41 are larger than the diameters of the outlets 412 and 412, and the inlets 411 and 411 are formed in a tapered shape, and the inlet 411 and the outlet 412 are formed. The communication portions 413 and 413 that communicate with each other are formed to be evenly inclined in the circumferential direction (see FIGS. 1 and 2). In the present embodiment, the inclination angle of the communication portion 413 in the circumferential direction is 20 degrees, but is not particularly limited, and a jet having a favorable momentum is obtained in the range of 15 degrees to 25 degrees.

FIG. 5 a is a diagram showing a distal end side end surface of the covering member 2, and FIG. 5 b is a diagram showing a proximal end side end surface of the covering member 2.
A jet jet ejected from the outlet 412 of the jet water conduction holes 41, 41 of the rotator 4 is ejected into the bathtub C through the central communication hole 211 provided in the lid portion 21 of the covering member 2. That is, as shown in FIG. 2, since the central communication hole 211 communicates the front chamber 31 of the rotating body 4 and the front space of the lid portion 21, the center communicating hole 211 communicates with the rotating body 4 in the chamber 3 from the outlet 412. The jet jet jetted into the front chamber 31 is jetted into the bathtub C through the central communication hole 211.

The shape of the central communication hole 211 is not particularly limited as long as the support portion 210 a that supports the support member 40 of the rotating body 4 is provided. In this embodiment, as shown in FIGS. 5a and 5b, a support portion 210a is provided at the lid center portion 210, and two central communication holes 211 are formed on the left and right sides in an arc shape around the center portion. .
By adopting such a configuration, the jet flow to which the rotational force is applied by the rotating body is dispersed and ejected from each arc-shaped communication hole while having the rotational force, and the jet ejected into the bathtub It is possible to give the jet a variety of movements.

  In addition to the configuration of the present embodiment, the shape of the central communication hole 211 divides the periphery of the closed lid central portion 210 into three fan-shaped regions, and each fan-shaped region has openings in the front and middle stages. In addition, a configuration in which the rear stage and the third stage are provided may be employed. Further, it may be subdivided into five fan-shaped regions and seven regions. Moreover, the opening of each region is not limited to the triple structure of the front, middle, and rear stages, and may be a double structure of the front and rear stages, or may be a quadruple or fivefold opening structure, as desired. It can be appropriately selected according to the movement of the jet jet.

Next, a process for generating a jet flow by the jet injection apparatus A according to the present invention will be described. First, pressurized water supplied from the pressurized water supply means is ejected vigorously from the nozzle 5. The injection from the nozzle 5 is an injection having a narrow linear width because the diameter of the injection port 51 at the tip of the nozzle is small and tapered.
This linear narrow jet hits the vicinity of the center on the base end face of the rotating body 4 mounted in the chamber 3 and the jet water via the inlets 411 and 411 of the two jet water conduction holes 41 and 41. It flows into the conduction hole 41. That is, the diameters of the inlets 411 and 411 of the two jet water conduction holes 41 and 41 are larger than the diameters of the outlets 412 and 412, so that they hit the vicinity of the center on the base end face of the rotating body 4. It is possible to divide the jet into two and smoothly flow into the inflow ports of the jet water conduction holes 41 and 41.

Thus, when the pressurized water flows into the rotating body in the chamber from the nozzle, the backflow water from the bathtub flowing into the rear space 6b of the umbrella portion 22 is also involved and flows into the jet water conduction hole 41 of the rotating body. Is done. That is, as described above, the bottom wall 12 of the main body is provided with the main body communication hole 122 that communicates the rear space 6b of the umbrella portion 22 and the interior of the rear chamber 32 of the rotating body 4. The backflow water from the bathtub C flowing into the space 6b further flows into the rear chamber 32 of the rotating body 4 and merges with the pressurized water W injected from the nozzle outlet 51 of the nozzle 4, and the jet water conduction hole of the rotating body 4 41.
Thus, since the pressurized water and the backflow water from the bathtub merge and flow into the jet water conduction hole 41 inside the rotating body 4, the rotating body 4 rotates vigorously and a jet with a pulsating feeling is obtained. .

  Then, the jet jets ejected from the outlets 412 and 412 of the rotating body 4 are ejected into the bathtub C through the central communication hole 211 of the lid portion 21 of the covering member 2. That is, the jet flow applied with the rotational force by the rotating body 4 is dispersed from each arc-shaped communication hole and injected into the ejection tub while maintaining the rotational force, so that the jet jet ejected into the tub Has a variety of movements, is not monotonous but rich in pulsation, and has an excellent massage effect.

  When the jet injection device A is attached to the pipe, as shown in FIG. 2, the edge 222 of the umbrella portion and the bottom wall base end face 12a abut against the bathtub wall surface 9 where the pipe is installed. It is attached. And since the attachment state is comprised so that the contact surface of the edge 222 of the umbrella part 22 and the contact surface of the bottom wall base end surface 12a may be on the same plane, the back space 6b of the umbrella part 22 is a bathtub. It is attached to the wall surface 9 in a closed state. Therefore, the backflow water from the bathtub in the rear space 6b of the umbrella portion 22 that flows into the rear chamber 32 of the rotating body 4 from the main body communication hole 122 does not inhale human hair or the like.

  The jet injection device according to the present invention can be easily attached to the pipe. That is, it is possible to easily perform the operation because it is only necessary to insert the attachment portion into the opening of the pipe and screw it together. Furthermore, even when it is attached to an existing pipe, it can be similarly easily performed. That is, as shown in FIG. 2, for example, when the jet injection device A according to the present invention is installed in the existing pipe 8 of a jet injection device of the type that mixes a conventional jet water flow and air, the jet injection device A according to the present invention is attached to the pipe opening. Remove the existing head member (not shown), remove the internal nozzle (not shown) of the existing jet, then insert the mounting portion 11 of the jet injection device A into the pipe opening and install it just by screwing Is completed and does not take up space because there are few protrusions in the bathtub.

  Since the jet injection device A is a jet jet with only a water flow, the air pipe 81 of the existing device only needs to be closed. From a conventional jet injection device of a type that mixes air and water flow to a jet injection device with only a water flow. Therefore, large-scale installation work such as destruction work of the bathtub wall, relocation of piping, replacement of the pump and the like is not necessary at all, and this is extremely economical.

It is a disassembled perspective view of the jet injection apparatus of one Example of this invention. It is an assembly longitudinal section in the state where the jet injection device of one example of the present invention was installed in the existing piping opening. FIG. 3A is a diagram illustrating the distal end surface side of the rotating body, and FIG. 3B is a diagram illustrating the proximal end surface side of the rotating body. FIG. 4A is a diagram illustrating a distal end side end surface of the main body in a state where the nozzle is mounted, and FIG. 4B is a diagram illustrating a base end side end surface of the main body in a state where the nozzle is mounted. FIG. 5A is a diagram illustrating a distal end side end surface of the covering member, and FIG. 5B is a diagram illustrating a proximal end end surface of the covering member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Cover member 3 Chamber 4 Rotating body 5 Nozzle 6a Front space 6b Back space 7 Screw 8 Existing piping 9 Bathtub wall surface 11 Mounting part 12 Bottom wall 12a Base end surface 12b Outer surface 13 Peripheral wall 21 Lid part 22 Umbrella part 31 Front chamber 32 Rear chamber 40 Support member 41 Injection water conduction hole 51 Injection port 52 Base end 80 Female screw 81 Piping 110 Male screw 111 Through hole 121 Bottom wall through hole 122 Main body communication hole 131 Step part 210 Lid center part 211 Central communication hole 221 Around Communication hole 222 End edge 411 Inflow port 412 Outflow port 413 Communication part

Claims (2)

A jet injection device that is attached to a pipe that is open on the bathtub wall surface and injects pressurized water from the pressurized water supply means forward into the bathtub as a jet injection,
A bottom wall having a through-hole inside and a bottom wall through-hole that is mounted in the pipe and has a bottom wall surface in front of the mounting section, the base end surface of which contacts the bathtub wall surface and is connected to the through-hole. And a main body which is located in front of the bottom wall and is integrally formed with a cylindrical peripheral wall having a space inside the peripheral wall inside.
A tapered nozzle is formed so as to penetrate the inside so that the diameter of the tip is smaller than the diameter of the base, and the tip of the nozzle is directed to the front of the mount in the through hole of the mount. A fixed nozzle,
A lid that is attached to the front end of the peripheral wall and covers the front of the space in the peripheral wall formed in the peripheral wall; covers the outside of the peripheral wall; A covering member comprising an umbrella portion forming a rear space surrounded by the bathtub wall surface;
In the surrounding wall inner space formed in the surrounding wall, comprising a rotating body that can rotate around the center,
A front chamber is formed between the front end surface of the rotating body and the inner surface of the lid portion, and a rear chamber is formed between the base end surface of the rotating body and the front end surface of the nozzle,
The lid is formed with a central communication hole that communicates the front space and the front chamber in front of the lid,
The umbrella portion is formed with a peripheral communication hole that communicates the front space ahead of the umbrella portion and the rear space formed inside the umbrella portion,
A main body communication hole that penetrates the bottom wall in the radial direction and communicates the rear space of the umbrella portion and the rear chamber is formed,
A support member that is in point contact with the lid base end side end surface is provided on the distal end surface of the rotating body,
A jet water conduction hole is formed by communicating the base end surface of the rotating body and the distal end surface of the rotating body,
The jet water conduction hole is located in front of the nozzle at the base end of the rotating body and is formed to be inclined in the circumferential direction in the rotating body.   2. The jet injection device according to claim 1, wherein an inclination angle of the jet water conduction hole of the rotating body is in a range of 15 degrees to 25 degrees.

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