JP2011245223A - Mist generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mist generator surely jetting a mist from every jetting part even with a constitution not using a nozzle member.SOLUTION: The mist generator 1 includes a front member 7; a rear member 8 paired with the front member 7 to form a space 12 for hot and cold water to flow in; and a blocking member 9 located between the front member 7 and the rear member 8. The front member 7 has a jetting part 15 for swirling hot and cold water to jet mist-like hot and cold water. The rear member 8 has a holding part 28 holding the blocking member 9 to introduce hot and cold water between the blocking member 9 and the rear member 8. The blocking member 9 is disposed in a position between the jetting part 15 and the holding part 28 and pressed to the front member 7 side with the water pressure of the supplied hot and cold water. The discharge pressure of hot and cold water introduced into the jetting part 15 is thereby maintained to a predetermined pressure or higher to jet the mist.

Description

  The present invention relates to a mist generator capable of spraying hot water in a mist form.

  Conventionally, a plurality of mist generating nozzle members (hereinafter also simply referred to as nozzle members) that form a mist when jetting supplied hot water and a nozzle holding member that can hold the plurality of nozzle members are configured. There is a mist generator for a bathroom (for example, Patent Document 1). In this type of mist generator, each nozzle member is connected to a branch pipe branched from the hot water supply main pipe inside the nozzle holding member, and when hot water is introduced into the nozzle member, a swirling flow is generated, The hot water is configured to be a mist when sprayed.

  By the way, there is a limit to the amount of mist that can be generated from one nozzle member. Moreover, in the bathroom, in order to achieve a sauna effect, a heating effect, or a shower effect by mist, it is necessary to generate a certain amount or more of mist. For this reason, in the mist generating apparatus as in Patent Document 1, it is necessary to arrange a large number of nozzle members on the nozzle holding member in order to increase the amount of mist. However, in general, the nozzle member is expensive, and there has been a complaint that the manufacturing cost of the mist generator increases if the number of nozzle members is increased. Further, if the number of nozzle members is increased, the number of branch pipes also increases, so that labor for connecting the nozzle members and the branch pipes increases, production efficiency decreases, and further, there is a complaint that increases manufacturing costs.

  Therefore, the present inventors have developed a mist generating device in which the nozzle holding member is directly provided with a nozzle function without using a nozzle member (for example, Patent Document 2). That is, the mist generator described in Patent Document 2 includes a front member and a rear member, and a nozzle function is formed by the front member and the rear member.

  Thereby, compared with the case where a nozzle member is used like patent document 1, the mist generator described in patent document 2 has succeeded in drastically reducing manufacturing cost. Furthermore, with this configuration, it is not necessary to connect a branch pipe that branches from the hot water supply main pipe, so that the apparatus can be made smaller and thinner, and the usable range can be expanded. For example, it can be used by being easily grasped like a shower head.

  Here, the mechanism by which mist is injected using the mist generator of Patent Document 2 will be described. In the mist generating device disclosed in Patent Document 2, a swirling flow path for generating a swirling flow of hot water is provided on the front member, and a closing portion is provided on the rear member. Then, the hot water introduction side opening of the swirl flow path is closed by the closing portion of the rear member, and the swirl flow path is formed from a flow path (hereinafter also referred to as a tangential flow path) extending in a tangential direction of the opening provided in the hot water introduction side opening. A configuration is adopted in which hot and cold water is introduced. Thereby, since hot water is introduced into the swirling flow path with a pressure above a certain level, a swirling flow of hot water is generated in the swirling flow path, and mist is ejected from the injection side opening. That is, this configuration fulfills the nozzle function of mist.

JP 2003-79527 A Japanese Patent Laid-Open No. 2008-200261

  On the contrary, when hot water is introduced into the swirling flow path without going through the tangential flow path, the hot water introduced into the swirling flow path does not reach a certain pressure, and a sufficient swirling flow is not generated. The same applies to the case where a part of hot water is introduced from the tangential channel into the swirling channel and the remaining hot water is introduced into the swirling channel from another route. Thereby, the nozzle function of mist does not function normally, and mist is no longer ejected from the ejection side opening. That is, in order for the nozzle function to function normally in the mist generating device, the portion other than the tangential flow path is closed with a closed portion without gaps, and hot water of a pressure above a certain level flows into the swirl flow path via the tangential flow path. It is important to be discharged.

  However, in the mist generating device of Patent Document 2, the swirl flow path provided in the front member is configured to be pressed and closed by the flat surface of the closing portion provided in the rear member, so that due to the variation in the shape of the molded product, In some cases, the swirling flow path is not sufficiently closed, and the sealing function of the closed portion is not sufficiently achieved. As a result, in some of the swirling flow paths, the pressure of the hot water to be introduced does not reach a certain level, and there may be a problem that mist is not injected from the injection side opening.

  Then, in view of the problem of a prior art, even if it is a structure which does not use a nozzle member, this invention aims at providing the mist generator which mist is reliably injected from all the injection parts.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a mist generating device capable of spraying supplied hot water, a front member having an injection portion for injecting mist-like hot water, a front member, The hot water flows into the injection unit side from the space side that is located between the rear member that forms a space where hot water flows into the position upstream of the injection unit from the injection unit in the upstream direction and the front member and the rear member. A mist generating device comprising: a closing member capable of closing a portion other than the passage, wherein hot water flowing into the space is introduced and sprayed from the passage to the injection unit.

  In the mist generating device of the present invention, the closing member is a separate member from the front member and the rear member, and a portion other than the passage through which hot water flows from the space side to the injection unit side is closed between the front member and the rear member. Thus, it is set as the structure which arrange | positions the obstruction | occlusion member and introduces and sprays hot water into the injection part via the passage which is not obstruct | occluded. That is, in addition to its own weight, the closing member can apply an external force such as a hot water pressure or an elastic body, and it is possible to improve the sealing performance in the injection portion by the action. Thereby, the sealing performance of the closing member is improved as compared with the prior art, and hot water is prevented from leaking from the place other than the passage to the injection unit. Therefore, according to the present invention, since the discharge pressure of the hot water introduced into the injection unit is not reduced, mist can be reliably injected from all the injection units.

  The invention according to claim 2 is the mist generating apparatus according to claim 1, wherein the closing member is pressed toward the front member by the pressure of the supplied hot and cold water.

  According to such a configuration, the closing member is pressed toward the front member by the water pressure of the supplied hot and cold water. Therefore, even when a plurality of closing members are provided, each closing member can be reliably pressed with sufficient force. . Thereby, the sealing performance of an injection part can be improved reliably.

  A third aspect of the present invention is the mist generating apparatus according to the first or second aspect, further comprising an elastic body that biases the closing member toward the front member.

  According to this configuration, since the closing member is urged toward the front member using an elastic body such as a spring, the sealing performance of the injection unit can be improved as compared with the prior art.

  In the invention according to claim 4, the rear member is provided with a holding portion that surrounds the closing member and holds the closing member at a position corresponding to the injection portion provided in the front member, 4. The mist generating device according to claim 2, wherein the closing member is held on a distal end side, and has an inflow portion for allowing hot water to flow into an enclosed inner side.

  According to such a configuration, the closing member can be held on the distal end side of the holding portion of the rear member, so that the closing member does not deviate from the injection portion. Moreover, since hot water can be made to flow into the inside of the holding portion via the inflow portion, it can be pressed to the front member side by water pressure. That is, according to the present invention, since the external force due to water pressure can be applied to the closing member while fixing the closing member at a fixed position, it is possible to escape from the closed state at least while hot water is supplied to the space. Absent.

  According to a fifth aspect of the present invention, the injection unit includes a flow path that communicates the space with the outside, and the front member includes a mounting portion on which the closing member is mounted on the introduction side of the flow path. 5. The mist generating device according to claim 1, wherein the passage communicating with the flow path is ensured in a state where the closing member is placed on the placement portion. is there.

  According to such a configuration, since the placing portion for placing the closing member on the front member is provided, the positioning of the closing member is easy.

  In the invention according to claim 6, the front member has a plurality of placement portions on which the injection portion is provided and the closing member is placed, and a part or all of the placement portion is connected to the front member. A mist generator according to any one of claims 1 to 5.

  According to such a configuration, since a part or all of the plurality of placement units provided with the injection units are connected, the injection units can be arranged with high density in a limited area. Thereby, even if the apparatus is downsized, it is possible to secure a certain amount of mist or more and obtain a heating effect, a sauna effect, and a shower effect.

  In the mist generator of the present invention,

It is explanatory drawing which shows the installation state of the mist generator which concerns on 1st Embodiment of this invention. It is a disassembled perspective view of the mist generator of FIG. It is a disassembled perspective view which shows a basic unit. It is the perspective view which looked at the front member of Drawing 3 from another angle. It is the arrow line view which looked at the front member of Drawing 4 from the A direction. It is BB sectional drawing which shows the convex part of FIG. 5 in a front member. It is the perspective view which looked at the rear member of FIG. 3 from another angle. It is the perspective view which looked at the closure member of Drawing 3 from another angle. It is a perspective view which shows notionally the positional relationship of a holding | maintenance part, a closure member, and a convex part. It is CC sectional drawing which shows notionally the holding | maintenance part shown in FIG. 9, a closure member, and a convex part. (Bold arrow indicates external force due to water pressure) It is a perspective view which shows the front member of the mist generator which concerns on another embodiment. It is a perspective view of the closure member used for the front member of FIG. It is a top view of the state which has arrange | positioned the closure member to the front member, Comprising: It is the figure which showed the injection part with the broken line. It is a perspective view which shows the rear member assembled | attached to the front member of FIG. It is sectional drawing which shows notionally the positional relationship of a front member, a closure member, and a rear member. (Bold arrow indicates external force due to water pressure) It is sectional drawing which shows notionally the state which made the external force of the spring act on the closure member. (Bold arrow indicates external force by water pressure and spring) (A) is a top view which shows the convex part in which the one injection part supply flow path was provided, (b) is a top view which shows the convex part in which the three injection part supply flow path was provided. . It is a top view which shows the connection convex part which the convex part connected. It is explanatory drawing which employ | adopted the mist generator as a ceiling panel of the inspection opening of a bathroom unit.

Next, the mist generator 1 according to the present embodiment will be described.
As shown in FIG. 1, the mist generating apparatus 1 of the present embodiment is connected to a hot water supply pipe 11 that flows hot water supplied from a heat source device (not shown) in a bathroom 10, and as shown in FIG. 2, A plurality of basic units 2, an intermediate flow path forming member 3 on which the plurality of basic units 2 are integrally mounted, and a decorative member 5 that exposes a part of the basic unit 2 and covers most of the intermediate flow path forming member 3. And is composed of.

  As shown in FIG. 3, the basic unit 2 includes a front member 7 that includes an injection unit 15 that injects hot and cold water in a mist form, and a rear member 8 that is combined with the front member 7 and connected to the intermediate flow path forming member 3. And a closing member 9 that is disposed between the front member 7 and the rear member 8 and restricts the flow of hot water into the injection unit 15.

  As shown in FIGS. 3 and 4, the front member 7 is a substantially quadrangular plate-like body, and a mounting portion 22 of a rear member 8 described later is fitted on one wall surface side (a turning flow path 17 side described later). A mounted portion 21 is provided. The mounted portion 21 is a circular recess and is a portion that sinks in the thickness direction (the other wall surface side) of the front member 7. Further, a ring-shaped packing (not shown) is arranged on the mounted portion 21 along the inner periphery thereof. The inner diameter of the packing is substantially the same as or slightly smaller than the outer diameter of the mounting portion 22 of the rear member 8 described later.

Further, as shown in FIG. 4, a plurality of substantially columnar convex portions 14 protruding vertically from the wall surface of the front member 7 are provided in a region inside the edge of the mounted portion 21. The convex portions 14 are arranged at substantially equal intervals and arranged to draw a circle. And the base by which the injection part 15 penetrated to the thickness direction of the front member 7, the injection part supply flow path 16 which supplies hot water to the injection part 15, and the closure member 9 mentioned later are arrange | positioned in the position of the convex part 14 20 is formed. In the present embodiment, the number of convex portions 14 is twelve.
Further, as shown in FIG. 3, the other wall surface side of the front member 7 (the wall surface side opposite to the wall surface where the mounted portion 21 is formed) has a bowl-like thickness at a position corresponding to the injection unit 15. An injection recess 27 that is recessed in the direction is formed.

  As shown in FIGS. 5 and 6, the injection unit 15 is formed by communicating the swirling flow path 17 and the injection flow path 18, and on the wall surface side (one wall surface side) where the mounted portion 21 is formed. The swirl flow path 17 is located, and the ejection flow path 18 is located on the wall surface side (the other wall surface side) where the ejection recess 27 is formed. That is, the swirl flow path 17 and the injection flow path 18 communicate with each other in the thickness direction of the front member 7, and both flow paths are not positioned on the same wall surface side of the front member 7.

The swirling channel 17 has an introduction portion 25 whose channel shape is a columnar shape, and a conical swirling portion 26 whose inner diameter becomes narrower from one wall surface side of the front member 7 toward the communicating portion with the injection channel 18. is doing.
The introduction part 25 is located on the wall surface side, and communicates with the introduction side opening 25a formed on the top surface of the convex part 14. In addition, two openings 30 through which hot water flows are provided in the inner wall of the introduction portion 25. The opening 30 communicates with an injection unit supply channel 16 described later, and is a location where hot water flowing into the injection unit supply channel 16 described later is discharged to the swirl channel 17.

  The swivel unit 26 is located between the introduction unit 25 and an injection flow path 18 to be described later, and the hot water introduced into the introduction unit 25 is swung along the wall surface of the flow path so that the swirling flow of hot water is efficiently performed. It is a place to generate automatically. The inner diameter of the swivel unit 26 at the boundary between the introduction unit 25 and the swivel unit 26 is the same as the inner diameter of the introduction unit 25.

  The ejection channel 18 has a cylindrical channel shape and is smaller than the inner diameter of the introduction portion 25. Specifically, the size of the inner diameter of the injection flow path 18 is the same as the size of the inner diameter of the swirl flow path 17 at the boundary between the swirl flow path 17 and the injection flow path 18. The injection flow path 18 communicates with an injection side opening 18 a provided on the wall surface side of the front member 7. The injection side opening 18 a is located at the bottom of the injection recess 27 of the front member 7.

  As described above, the ejection unit supply channel 16 is a channel for supplying hot water to the ejection unit 15, and is formed on the convex portion 14 of the front member 7. The injection unit supply channel 16 is a groove-shaped channel that communicates with the opening 30 formed in the introduction unit 25 of the injection unit 15 and has open portions on the outer surface side and the top surface side of the projection 14. is there. And the injection part supply flow path 16 is provided so that it may extend in the tangential direction of the flow-path cross section of the introduction part 25. As shown in FIG.

  In addition, two injection unit supply channels 16 are provided for each injection unit 15. And the two injection part supply flow paths 16 are mutually parallel and shifted in positional relationship, and are further arranged to face each other. In other words, the two injection part supply flow paths 16 are in a positional relationship in which hot and cold water introduced into the injection part 15 flows in the same direction. Thereby, the hot water introduced from each injection part supply flow path 16 does not collide in the injection part 15. Specifically, even if hot water is introduced from any opening 30 into the injection unit 15, it flows toward the discharge side opening 18 a while turning in the same direction along the side surface of the injection unit 15.

  The pedestal (fitting portion) 20 is a portion in which the top surface of the convex portion 14 is circularly recessed in the thickness direction of the front member 7 and is sized so that a part of the closing member 9 described later is fitted therein. ing. That is, the pedestal 20 includes a bottom surface 20a and a side surface 20b. The closing member 9 is placed on the bottom surface 20a, and the side surface 20b prevents the closing member 9 from being displaced from the position of the pedestal 20. Note that, on the bottom surface 20 a of the pedestal 20, an injection unit 15 and an injection unit supply channel 16 for introducing hot water into the injection unit 15 are arranged.

  As shown in FIGS. 3 and 7, the rear member 8 is a substantially rectangular plate-like body having substantially the same size as the front member 7, and one wall surface side of the rear member 8 (side on which the front member 7 is disposed). A ring-shaped mounting portion 22 that protrudes perpendicularly from the wall surface is provided. Note that the outer diameter of the mounting portion 22 is approximately the same as or slightly larger than the inner diameter of the packing (not shown) disposed on the mounted portion 21 of the front member 7. That is, the mounting part 22 is a part fitted to the mounted part 21 on which packing (not shown) is arranged.

Further, in a region inside the inner edge of the mounting portion 22, a holding portion 28 is provided at a position corresponding to the opening 32 through which hot water is introduced and the convex portion 14 provided on the front member 7.
The opening 32 is disposed substantially at the center of the rear member 8 and communicates with a flow path (unit introduction flow path) 23 that penetrates the rear member 8 in the thickness direction. Further, on the wall surface side (the other wall surface side) opposite to the wall surface on which the mounting portion 22 is arranged in the rear member 8, a tubular shape that forms a part of the unit introduction channel 23 so as to stand up from the wall surface. A joint portion 31 is provided. That is, hot water introduced into the joint portion 31 passes through the unit introduction flow path 23 and is discharged from the opening 32.

The holding portion 28 holds a part of a closing member 9 described later, and is formed by four convex arc pieces 33 protruding from the wall surface of the rear member 8 as shown in FIG.
The convex arc pieces 33 are arranged so that the side surfaces 40 have an arc shape, and the side surfaces 40 of the convex arc pieces 33 are arranged on the same circumference and at almost equal intervals. That is, the portion surrounded by the convex arc piece 33 is a space, and hot water can be introduced into the space via the interval (inflow part) 43 between the convex arc pieces 33.

Further, a rear side taper portion 41 is provided at the protruding end portion of the convex arc piece 33. The rear side taper portion 41 is inclined downward (reference to the enlarged view in FIG. 3) toward the center side of the circle formed by the four convex arc pieces 33. In other words, as shown in the enlarged view of FIG. 3, the rear side taper portion 41 is designed such that the protruding end length on the outer side surface 40 a side is longer than the protruding end length on the inner side surface 40 b side, It is the inclined surface which connected the edge parts from which tip length differs.
In the present embodiment, the side surface of the convex arc piece 33 has a central angle forming an arc of 70 to 90 degrees, preferably 90 degrees, and the protrusion length of the rear member 8 from the wall surface is 3 to 3. It is about 4 mm.

  The closing member 9 is a substantially columnar member, and a tapered portion 42 having a gradient in the same direction as the rear-side tapered portion 41 of the convex arc piece 33 is formed on one end surface side. In other words, the taper portion 42 of the closing member 9 is an inclined surface inclined downward from the inside to the outside of the closing member 9 with reference to FIG. In the present embodiment, when the tapered portion 42 of the closing member 9 is disposed on the holding portion 28, the inclined surface of the tapered portion 42 and the inclined surface of the rear side tapered portion 41 are in a substantially parallel positional relationship. Designed to. That is, even when a situation occurs in which the position of the closing member 9 is shifted, the rear side taper portion 41 of the holding portion 28 performs a guide function for correcting the positional deviation of the closing member 9.

  Further, when an end portion (hereinafter also referred to as a closing side end portion) 44 opposite to the end portion where the tapered portion 42 is provided in the closing member 9 is arranged on the base 20 of the front member 7, the swirl flow path 17. Since the inlet side opening 25a of the pedestal 20 needs to be completely closed, it is a flat surface that can easily come into close contact with the bottom surface 20a of the pedestal 20.

  As shown in FIG. 2, the intermediate flow path forming member 3 serves as a manifold having a tank portion 47, and includes four unit mounting portions 45 provided on the discharge side of the tank portion 47. A pipe connection portion (not shown) to which hot water supply pipe 11 (FIG. 1) is connected is provided on the inflow side of 47. That is, the hot water that has passed through the hot water supply pipe 11 is introduced into the tank portion 47 from a pipe connection portion (not shown), and is distributed and supplied to the basic unit 2 mounted from each unit mounting portion 45.

The decorative member 5 constitutes the aesthetics of the mist generating device 1, and is provided with four unit exposed portions 48 where the basic unit 2 is located and an intermediate flow path mounting portion (not shown) into which the intermediate flow path forming member 3 is fitted. ing.
The unit exposed portion 48 is a substantially rectangular opening and is approximately the same size as the shape of the front member 7.
The intermediate flow path mounting portion is an opening that is slightly smaller than the size of the intermediate flow path forming member 3, and the opening is provided with a claw portion whose edge is folded inward.

Next, the assembly structure of the mist generator 1 will be described.
As shown in FIGS. 1 and 2, in the mist generating apparatus 1 of the present embodiment, a pipe connection portion (not shown) of the intermediate flow path forming member 3 is connected to the hot water supply pipe 11. A basic unit 2 and a decorative member 5 are mounted. The basic unit 2 is mounted on the unit mounting portion 45 of the intermediate flow path forming member 3 via the joint portion 31 of the rear member 8, and the decorative member 5 is illustrated in the intermediate flow path forming member 3 with the intermediate flow path mounting portion not shown. It is arranged so that it is located on the pipe connection part side. In this state, the wall surface on the injection unit 15 side of the front member 7 in the basic unit 2 is disposed so as to be exposed from the unit exposure portion 48 of the decorative member 5.

  In the basic unit 2, the mounted portion 21 of the front member 7 and the mounting portion 22 of the rear member 8 are fitted and assembled. By assembling the front member 7 and the rear member 8, a space 12 into which hot water flows is formed between the front member 7 and the rear member 8. Note that the front member 7 and the rear member 8 can be assembled in addition to means for fitting the mounting portion 22 to the mounting portion 21 and mounting, as well as the wall surface of the front member 7 on the mounting portion 21 side. A screw hole (not shown) that does not penetrate in the thickness direction is provided in a region outside the portion 21, and a screw hole (not shown) that penetrates in the thickness direction is provided on the rear member 8 at a position corresponding to the screw hole. A means for aligning the screw holes and tightening them with screws or the like is also used.

  Moreover, in this embodiment, the structure which arrange | positions the closure member 9 between the front member 7 and the rear member 8, and acts the nozzle function which generate | occur | produces mist is formed. Specifically, the convex part 14 of the front member 7 and the holding part 28 of the rear member 8 are arranged so as to face each other, and the closing member 9 is arranged between them. That is, as shown in FIGS. 9 and 10, the closing member 9 is arranged so as to be sandwiched between the base 20 of the convex portion 14 and the rear side tapered portion 41 of the holding portion 28, and the closing side end portion of the closing member 9 is arranged. 44 is arranged in close contact with the bottom surface 20 a of the seat surface 20.

  That is, in a state where the closing member 9 is disposed on the seat surface 20 of the front member 7, the introduction side opening 25 a of the injection unit 15 is closed by the closing side end portion 44 of the closing member 9. Thereby, hot water supplied from the unit introduction flow path 23 of the rear member 8 can be prevented from flowing to the injection part 15 through the introduction side opening 25a, and is injected only from the injection part supply flow path 16 on the side surface side of the closing member 9. Hot water can be introduced into the section 15.

On the other hand, in the state where the closing member 9 is disposed on the seating surface 20 of the front member 7, the tapered portion 42 side of the closing member 9 is also held by the holding portion 28. A space is formed between the rear member 8 and the wall surface. And the inflow part 43 formed of the convex circular arc piece 33 is located so that it may communicate with the space.
Therefore, in the present embodiment, the closing member 9 is configured not to deviate from the position sandwiched between the convex portion 14 and the holding portion 28, but the external force from the rear member 8 side or the external force from the front member 7 side. This is a configuration with some room for movement. In other words, an external force is applied to the closing member 9 from the rear member 8 side to the front member 7 side, whereby the sealing force of the closing member 9 against the injection portion 15 is improved.

Next, the operation of the mist generator 1 will be described.
When the mist generating device 1 operates the mixing plug 55 in the bathroom 10 to supply hot water with appropriate temperature to the hot water supply pipe 11, hot water is introduced into each basic unit 2 through the intermediate flow path forming member 3. Thus, each injection unit 15 injects the hot water in a mist form.

  Specifically, when hot water is distributed from the intermediate flow path forming member 3 to each basic unit 2, the hot water passes between the front member 7 and the rear member 8 via the unit supply flow path 23 of the basic unit 2. It is introduced into the formed space 12. At this time, the hot water introduced into the space 12 flows inside the holding portion 28 via the inflow portion 43 formed by the convex arc piece 33. In this state, since the pressure in the space 12 is higher than the atmospheric pressure, the hot water flow is formed in a direction toward the injection unit 15 communicating with the outside. Accordingly, as shown in FIG. 10, a water pressure that presses the closing member 9 toward the front member 7 acts inside the holding portion 28.

  That is, when hot water is supplied from the unit supply flow path 23 of the rear member 8, the hot water flows into the inflow portion 43 and presses the closing member 9 toward the front member 7, so that the closing member 9 and the seat surface 20 are in close contact with each other. Can be improved. Thereby, since the sealing force of the closing member 9 is increased, hot water is reliably prevented from being introduced into the injection unit 15 from a path other than the injection unit supply flow path 16. That is, in the present embodiment, the discharge pressure introduced from the injection unit supply flow path 16 to the injection unit 15 is not reduced by improving the sealing performance of the closing member 9 by water pressure. In other words, it becomes easy to maintain the discharge pressure of the hot water introduced into the injection unit 15 above a certain level.

  Here, as described above, the ejection unit supply flow channel 16 is a flow channel extending in a tangential direction with respect to the flow channel cross section of the swirl flow channel 17. Therefore, when hot water is introduced from the injection unit supply flow channel 16 to the injection unit 15 with a discharge pressure higher than a certain level by the action of the closing member 9, the hot water generates a swirl flow along the flow channel side surface of the swirl flow channel 17. Let

  Then, the swirling flow of the hot water proceeds toward the ejection side opening 18a while the swirling portion 26 of the swirling flow path 17 is gradually narrowed in the swirling range. . When the hot water having a high turning speed reaches the injection side opening 18a, it is diffused to the outside by the centrifugal force generated by the turning and becomes mist.

  According to the mist generating device 1 of the present embodiment, since the closing member 9 is pressed toward the front member 7 by the water pressure of the hot water supplied, the introduction-side openings 25a in all the injection portions 15 are uniform and have high sealing properties. Can be occluded. Thereby, in any injection part 15, since the discharge pressure of the hot water introduced is not reduced, mist can be reliably injected from all the injection side openings 18a. That is, according to the mist generating device 1 of the present embodiment, since there is no problem that mist is not generated from some of the injection units 15, the heating effect, the sauna effect, and the shower effect without making the user feel uncomfortable. Can be provided.

  In this embodiment, since the blocking member 9 as a separate member is disposed between the front member 7 provided with the injection portion 15 and the rear member 8 that forms a space 12 in pairs with the front member 7, The sealing force of the closing member 9 can be improved by applying an external force such as. Thereby, the fall of the sealing performance in the one part injection | pouring part which may occur due to the variation of the member shape of a molded article etc. like a prior art can be prevented.

  Moreover, according to the said embodiment, it is not necessary to use what is called a nozzle member provided with the nozzle structure which generate | occur | produces mist. Therefore, compared with the prior art, even if the number of mist injection units is increased, the weight of the mist generator can be reduced to each stage.

In the said embodiment, although the structure which hold | maintains the closure member 9 in the holding part 28 of the rear member 8 was shown, this invention is not limited to this, For example, only the closure member was arrange | positioned in the injection part of the front member. It may be a configuration. Hereinafter, the description will be given focusing on the configuration different from the present embodiment.
That is, as shown in FIG. 11, the front member 60 is provided with two “L” -shaped pedestal forming members 65 that form a pedestal portion so as to surround the injection portion 63. A rectangular blocking member 70 is disposed on the pedestal portion surrounded by the pedestal portion forming member 65. As shown in FIG. 12, the closing member 70 is provided with a departure prevention portion 75 protruding outward on one plane, and the departure prevention portion 75 is disposed on the rear member 61 side described later.

  Further, two injection unit supply channels 64 extending in the tangential direction of the channel cross section are connected to the injection unit 63. And the front member 60 is supplied to the injection part 63 and the injection part supply flow path 64 so that hot water can be supplied to the injection part 63 via the injection part supply flow path 64 in a state where the injection part 63 is closed by the closing member 70. A protruding wall 71 protruding from the wall surface of the front member 60 is provided, and a portion of the injection portion 63 and the injection portion supply flow path 64 is formed in a portion protruding from the wall surface of the front member 60. Therefore, the blocking member 70 disposed on the pedestal portion is placed on the protruding wall 71 as shown in FIG. Thereby, the flow path of the injection part supply flow path 64 can be secured while closing the introduction side opening 63a of the injection part 63.

  On the other hand, the rear member 61 does not have a configuration corresponding to the holding portion 28 shown in the above embodiment, and the wall surface on the side assembled with the front member 60 is simply a plane as shown in FIG. Then, when the closing member 70 is arranged on the pedestal portion of the front member 60 and the front member 60 and the rear member 61 are assembled, the state shown in FIG. 15 is obtained. That is, the closing member 70 disposed on the pedestal portion of the front member 60 is prevented from deviating from the position of the pedestal portion by the deviation preventing portion 75 provided on the closing member 70. And since the obstruction | occlusion member 70 can be pressed to the front member 60 side with the water pressure of the hot water introduced into the space 72 formed between the front member 60 and the rear member 61, the same effect as the said embodiment is exhibited. Is possible.

  Moreover, in the said embodiment, although the structure which presses the closure members 9 and 70 to the front members 7 and 60 side with the hot water pressure was shown, this invention is not limited to this, For example, in addition to water pressure or water pressure Instead of this, an elastic body 79 such as a spring or rubber may be applied to the closing members 9 and 70. The cross-sectional view shown in FIG. 16 shows a configuration in which the external force of the spring is applied to the closing member in addition to the water pressure.

  In the above-described embodiment, the mist generating device including a plurality of basic units is shown. However, the present invention is not limited to this, and for example, the above-described one basic unit may be used as the mist generating device. Alternatively, it may be a mist generating device in which five or more basic units are combined.

  In the above-described embodiment, the configuration in which the two injection unit supply channels 16 are provided is shown. However, the present invention is not limited to this, and as shown in FIG. It does not matter. In particular, when a plurality of injection unit supply channels 16 are provided, it is necessary to design the flow of hot water introduced into the injection units 15 and 63 in the same direction.

  Moreover, in the said embodiment, although the structure by which the some convex part 14 was each arrange | positioned independently was shown, this invention is not limited to this, For example, as shown in FIG. The connecting convex portion 78 may be used. Thereby, it becomes possible to arrange | position an injection part with high density in the limited area | region. In addition, even if it is a case where an injection part is provided in the connection convex part 78, it is desirable to set it as the structure which made each injection part and injection part supply flow path independent.

  Although the mist generating apparatus 1 of the said embodiment showed the structure connected to the hot water supply piping 11 extended from the mixing plug 55 in the bathroom 10, it was connected to the piping branched on the upstream of the flowing direction of the hot water from the mixing plug 55. A connected configuration may be used.

Here, as described above, according to the present invention, since it is not necessary to use a so-called nozzle member having a nozzle structure that generates mist, the basic unit in the present embodiment is reduced in weight in each stage as compared with the prior art. Is possible.
Therefore, it has been considered to use the mist generator having the above configuration as a ceiling panel 80 of an inspection port in a bathroom unit as shown in FIG. Thereby, since the space in a bathroom is not squeezed by bath facilities, a bathroom space can be used effectively. In addition, mist can be sprayed from the ceiling of the bathroom, and the heating effect, sauna effect, and shower effect can be made more efficient. In addition, a mist function can be added for bathroom renovation. However, it can be provided at a lower cost than before.

DESCRIPTION OF SYMBOLS 1 Mist generator 7, 60 Front member 8, 61 Rear member 9, 70 Closure member 12 Space 14 Convex part 15, 63 Injection part 16 Injection part supply flow path 20 Base (mounting part)
28 Holding part 43 Inflow part 78 Connection convex part 79 Elastic body

Claims (6)

A mist generator capable of spraying supplied hot water,
A front member having an injection portion for injecting mist-like hot water, a rear member that forms a space in which hot water flows into a position upstream of the injection portion in the flow direction of hot water, paired with the front member; A closing member that is located between the rear member and that can close a portion other than the passage through which hot water flows from the space side to the injection portion side;
The hot water flowing into the space is introduced and sprayed from the passage to the injection unit.   The mist generating apparatus according to claim 1, wherein the closing member is pressed toward the front member by a water pressure of hot water supplied.   The mist generator according to claim 1, further comprising an elastic body that biases the closing member toward the front member. The rear member is provided with a holding portion that surrounds the closing member and holds the closing member at a position corresponding to the injection portion provided on the front member,
The said holding | maintenance part hold | maintains a closure member by the front end side, and has an inflow part which flows in hot water into the enclosed inner side, The mist generator of Claim 2 or 3 characterized by the above-mentioned. The injection unit has a flow path communicating the space with the outside,
The front member has a placement portion on which the closing member is placed on the introduction side of the flow path,
The mist generating device according to any one of claims 1 to 4, wherein the passage communicating with the flow path is secured in a state where the closing member is placed on the placement portion. The front member has a plurality of placement portions on which the injection portion is provided and the closing member is placed,
The mist generating device according to any one of claims 1 to 5, wherein a part or all of the mounting portion is connected.

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