JP6502024B2 - Bubble generation device with spout and bubble generation adapter for spout - Google Patents

Description

  The present invention relates to a water discharger with a bubble generator and a bubble generation adapter for a water discharger.

  For example, in the following Patent Documents 1 and 2, a micro-bubble water discharger equipped with a single venturi tube having a function for discharging the bubbly water with high cleaning effect to efficiently and effectively clean the object to be cleaned. As a method of generating fine bubbles, there is a method in which air is mixed in flowing water of the venturi before the negative pressure is generated, then a negative pressure is generated in the flowing water and the fine bubbles are formed by the negative pressure. Proposed. In addition, as another method of generating fine bubbles into which air is mixed, there is also a method of drawing in air after generating negative pressure in flowing water of a venturi tube.

JP, 2009-257023, A JP, 2010-7315, A

  However, in this conventional micro-bubble water discharger, suction of air is required, and the structure for sucking in air has the following problems. (1) The noise is severe because of air intake. (2) When the venturi pipe is provided with an air suction portion, when the spouter is attached to a water passage of, for example, a shower head, the spouter may be an existing type or a new type Also, the mounting structure may be complicated and the number of parts may be increased. The same problem also occurs, for example, when attaching a venturi tube with an air suction part in the water flow path of the shower head of a water spout for a bathroom.

  The object of the present invention is to suppress the generation of noise due to air intake, and to enable stable supply of microbubbles and simplification of the mounting structure of the water discharger in a water passage at a specific site, and the number of parts is further reduced. It is an object of the present invention to provide a water discharger with a bubble generator and a water generation bubble generation adapter provided in the water discharger.

In order to achieve the above object, the present invention is a bubble generating adapter for a water discharger which is detachably provided in the middle of a flow passage of a water discharger, comprising a plurality of venturi pipe portions in a parallel state, and further comprising: Each hole of the venturi tube portion is formed into two kinds of large and small through holes formed through the corresponding adapter;
Each of the two large and small through holes is surrounded by a portion having a substantially streamlined thin wing shape in longitudinal cross section,
A cylindrical portion formed on the downstream side, an outward flange formed on the upstream side, and a tapered surface portion connecting the flange and the cylindrical portion possess,
Furthermore, the tapered surface is frusto-conical, and
A bubble generating adapter for a water discharger is provided, in which an O-ring fitting groove is formed in a portion connecting the cylindrical portion and the tapered surface portion (claim 1).

  Further, from another aspect of the present invention, there is provided a water discharger with a bubble generator, wherein the adapter described in claim 1 is detachably provided from the upstream side of the shower head to the hose connection portion of the water discharger. Claim 2). Furthermore, the present invention provides a water spouter with a bubble generator, wherein the adapter described in claim 1 is inserted inside the spout body of the shower head (claim 3).

  Generally, in order to generate a mixture of water and microbubbles in the flowing water of the venturi, the hole diameter of the venturi, the flow velocity and the water pressure are closely related, and the venturi It is necessary to increase the flow velocity of the water in the flowing water of the venturi tube portion in order to generate microbubbles of high cleaning efficiency required for, for example, a kitchen water discharger in the flowing water of the portion; It is well known that when the water pressure is low, it is necessary to reduce the hole diameter and increase the flow velocity.

  In this invention, by attaching an adapter provided with a plurality of venturi pipe portions in a parallel state in the middle of the flow path of the water spouter with a bubble generation device, for example, the above-described microbubble washing water with high cleaning efficiency can Can be discharged. That is, according to the present invention, by providing a plurality of venturi pipe portions in parallel to a single attachment, the lengths of the plurality of venturi pipe portions can all be set to the same length, and the respective venturi pipes can be set. The end portions of the part can all be located on the same plane, so that the microbubbles can be generated simultaneously in the flowing water of the respective Venturi tube parts and while maintaining that state, It can be made to discharge simultaneously from a discharge part via the downstream of the adapter in the flow path of the said water discharger.

  In addition, if the hole diameter of the venturi is reduced to increase the flow velocity of water, it is impossible to gain the water discharge flow rate of the venturi, however, in the present invention, since the venturi has a plurality of venturis, each venturi can be obtained. By appropriately adjusting the hole diameter of the part and combining these, it is possible to set the flow rate of the spouting water flowing out from the plurality of venturi pipes to the flow path of the water discharger as a total usable flow rate. As a result, according to the present invention, it is possible to solve the problems of the conventional water discharger for kitchen, for example. That is, (1) It is possible to suppress the generation of noise due to air suction. (2) Since a plurality of venturi pipes are provided in a single adapter and this adapter is attached to the middle of the flow path of the water discharger with a bubble generator, the plurality of venturi pipes stably supply microbubbles in total. be able to. (3) The single attachment is provided in the middle of the flow path, so the attachment structure of the venturi tube can be simplified, and the number of parts can be reduced.

  Furthermore, according to the present invention, since the adapter is detachably provided in the middle of the flow path, it can be easily retrofitted to the existing water discharger for kitchen, for example, by appropriately improving the size and shape of the adapter. Further, it is only necessary to decide whether or not to attach the adapter depending on the necessity of the micro bubble, that is, the parts on the water discharger side can be shared regardless of the necessity of the micro bubble.

It is structure explanatory drawing which shows the water discharging device with a bubble generation apparatus which concerns on one Embodiment of this invention. It is a longitudinal cross-sectional view which shows the principal part of the said embodiment. It is a perspective view which shows the bubble generation adapter for water dischargers used by the said embodiment. It is a longitudinal cross-sectional view which shows the water discharger with a bubble generation apparatus with which the bubble generation adapter for water dischargers which concerns on other embodiment of this invention was applied. It is a longitudinal cross-sectional view which shows the principal part of said other embodiment.

  Hereinafter, embodiments of the present invention will be described based on the drawings. 1 to 3 show an embodiment of the present invention. Fig. 1 shows an example of a water discharger with a bubble generator, and Fig. 2 shows a plurality of venturis in a parallel state, which are detachably mounted in the flow path of the root portion (proximal end portion) located downstream of the shower head. Fig. 7 shows a bubble generating adapter for a water discharger with a tube section. FIG. 3 is a view of the adapter as viewed obliquely from the downstream side.

  In FIGS. 1 to 3, the water discharger D according to the present embodiment is installed, for example, in a bathroom, and is provided on the shower head 1 and the root side (proximal side) of the shower head 1. A shower hose H connected to the hose connection portion 1a is provided, and on the upstream side of the shower hose H, for example, a hot and cold water mixing faucet (not shown) is provided. The shower head 1 is provided with a shower head body 2 and a shower plate 4 covering the opening 3 of the shower head body 2, and the shower head 1 is drawn out from the hot and cold water mixing faucet and is contained in the shower hose H. The water that has passed through the flow path j and has reached the opening 3 from the upstream side of the shower head main body 2 through the flow path i in the shower head main body 2 is from the plurality of through holes 4 a provided in the shower plate 4 It is configured to be discharged to the outside of the main body 2. The shower head main body 2 is a member made of a synthetic resin and formed into a hollow curved shape, and the discharge portion (head) 5 provided at the upper end portion (tip end portion) and the center portion to the root portion (base end) Part) and the grip part 6 provided. And the flow path in the water discharger D is comprised from the said flow path j in the shower hose H, and the said flow path i in the shower head main body 2 connected to this.

  The characteristic configuration will be described below. In the present invention, the water discharger D is detachably provided with an adapter 11 having a plurality of venturi pipe portions 7, 8, 9, 10 in parallel in the middle of the flow paths i, j. The single adapter 11 is made of a synthetic resin (for example, POM), and is fitted in a watertight manner in the flow path i at the hose connection portion 1 a of the shower head 1. That is, the adapter 11 is inserted into the hose connection portion 1 a from the upstream side of the shower head 1 via the O-ring 21. Also, in the present invention, an adapter made of a brass material may be used, and an adapter made of a suitable material can be used according to the usage form.

  The adapter 11 has a cylindrical portion 12 formed on the downstream side, an outward flange 13 formed on the upstream side, and a tapered surface portion 14 connecting the flange 13 and the cylindrical portion 12. Reference numeral 20 denotes a ring-shaped O-ring fitting groove formed at a portion connecting the cylindrical portion 12 and the tapered surface portion 14 and in which the O-ring 21 is fitted. Note that FIG. 3 is a view in which the O-ring 21 is omitted. And, in a state where the substantially entire surface of the downstream side surface m of the outward facing flange 13 is in contact with the upstream side end face n of the thick-walled hose connection portion 1a, the O-ring 21 is the hose connection portion 1a. In the state of being in watertight contact with the inner surface p of the above, it is fitted in the flow passage i. The size of the cylindrical portion 12 and the flange 13 of the adapter 11 can be appropriately set according to the size of the shower head body 2 used.

  And each hole h1, h2, h3, h4 of a plurality of venturi tube parts 7, 9, 10, 8 is a through hole formed penetrating the attacher 11, and the holes h1, h2 are larger than the holes h3, h4. . The heights (lengths) of the holes h1, h2, h3 and h4 are approximately equal to the sum of the height of the cylindrical portion 12 and the height of the tapered surface portion 14 as shown in FIG. Furthermore, the heights (lengths) of the plurality of holes h1, h2, h3, h4 are all set to be the same. Each venturi tube portion 7, 9, 10, 8 has an outlet opening 15, 15, 16, 16 with two large and small diameters formed on the downstream end face Q of the cylindrical portion 12, respectively. The outlet openings 15, 15 are larger than the outlet openings 16, 16. Furthermore, the outlet openings 15, 15, 16 and 16 are all provided to be located on the same plane, as shown in FIG. Reference numeral 17 denotes the inlet opening of the adapter 11 formed by the outward facing flange 13, 18, and 18 denote the inlet openings of the holes h1 and h2 of the venturi pipes 7 and 9, and 19 and 19 denote venturi pipes The inlet openings 18 and 18 are larger than the inlet openings 19 and 19, respectively. Then, the water drawn from the hot and cold water mixing faucet and passing through the flow path j in the shower hose H reaches the inlet opening 17 and branches therefrom to the inlet openings 18 and 18 and the inlet openings 19 and 19. Furthermore, the inlet openings 18 and 18 and the inlet openings 19 and 19 are all located in the same plane as the outlet openings 15, 15, 16 and 16.

  Furthermore, in FIG. 2, the holes h 1 and h 2 of the venturi tube portions 7 and 9 are surrounded by the portions 22 and 23 having a substantially streamlined thin wing shape in longitudinal cross section. The same applies to the holes h3 and h4 of the venturi tube parts 10 and 8.

  Since it is necessary to use the water discharger D comfortably and to increase the speed in the holes h1, h2, h3, h4 with respect to the necessary water discharge flow rate depending on the water pressure used, the venturi tube parts 7, 9, The hole diameters of the plurality of holes h1, h2, h3, h4 of 10, 8 are set appropriately small, and by increasing the speed in the holes h1, h2, h3, h4, high vacuum is generated and micro bubbles are generated . At this time, since the water branched from the inlet opening 17 flows through the plurality of holes h1, h2, h3 and h4 of unique shapes formed by the portions 22 and 23, respectively, the flow becomes efficient with no hindrance to the flow velocity. It becomes a state of negative pressure by passing through a specific area in the holes h1, h2, h3, h4 at high speed, and becomes a state of negative pressure efficiently, and makes the holes h1, h2, h3, h4 in parallel The synergetic effect of the provision enables the microbubbles to be simultaneously generated in the flowing water of the respective holes h1, h2, h3 and h4, and the holes h1, h2, h3 and h4 are provided in parallel and the outlet Since all the openings 15, 15, 16, 16 are located on the same plane, the efficiency from the exit openings 15, 15, 16, 16 is maintained while the microbubbles are generated. Ku can be summed, the water containing summed microbubbles can be made to flow to the downstream side of the Ataputa 11 in the channel i. As a result, bubbly water having a higher cleaning effect can be provided.

  4 and 5 are applied to a kitchen mixing water faucet (an example of a water discharger) D 'provided with a shower head connected to a faucet body via a flexible pipe forming a raw water supply flow path. 7 illustrates another embodiment of the present invention. In FIG. 4 and FIG. 5, the same reference numerals as in FIG. 1 to FIG. 3 denote the same or equivalent parts, and the hot and cold water mixing faucet D ′ is a faucet body 30 for mixing hot water and a faucet body 30. The shower head 33 connected via the flexible tube 32 which forms the supply flow path I of raw water is provided. The shower head 33 has a holder portion 34 and a water outlet body 35 provided at the downstream end of the holder 34. Reference numeral 36 denotes a direct discharge port provided in the spout main body 35, and reference numeral 37 denotes a spout provided in the spout main body 35. The direct water discharge port 36 is provided with, for example, a plurality of water spray plates 36 a in which the periphery of the mesh is edged with a synthetic resin material.

  In this embodiment, the adapter 11 shown in FIGS. 1 to 3 is inserted into the spout main body 35 of the shower head 33. Reference numeral 38 denotes a space formed immediately above the direct water discharge port 36 in the water discharge port main body 35, and the space 38 forms a flow path i communicating with the supply flow path I. Is fitted in a watertight state in the same manner as the attachment 11 shown in FIG. 2, and microbubbles are generated in both the direct water discharge state and the water spray state.

  In each of the above embodiments, the four-hole type is used as the adapter 11. However, in the present invention, two holes, three holes, five holes, etc. are used according to the water pressure used and the amount of discharged water. The appropriate number of holes are formed, and these holes are set to appropriate sizes.

7, 8, 9, 10 Venturi pipe 11 Adapter D Water discharger with bubble generator i Flow path

Claims (3)

A bubble generating adapter for a water discharger, which is detachably provided midway along the flow path of the water discharger, including a plurality of venturi pipe portions in parallel,
Furthermore, each hole of the plurality of venturi tube portions is formed in two large and small through holes formed through the corresponding adapter;
Each of the two large and small through holes is surrounded by a portion having a substantially streamlined thin wing shape in longitudinal cross section,
A cylindrical portion formed on the downstream side, an outward flange formed on the upstream side, and a tapered surface portion connecting the flange and the cylindrical portion possess,
Furthermore, the tapered surface is frusto-conical, and
A bubble generating adapter for a water discharger , wherein an O-ring fitting groove is formed in a portion connecting the cylindrical portion and the tapered surface portion .   A water spouter with a bubble generator, wherein the adapter according to claim 1 is detachably provided at the hose connection portion of the spout from the upstream side of the shower head. A water spouter with a bubble generator, wherein the adapter according to claim 1 is inserted into the spout body of the shower head.