JP3208970U - Aspirator device for shower head - Google Patents

Abstract

To provide a shower head aspirator device that has a simple structure, mixes fine bubbles into water, and is compatible with a shower head equipped with a pre-stop type water stop device. One end is a shower hose connecting part, the other end is a shower head connecting part, and a main body is formed as a gas mixing part with a space formed inside. The sphere 3 and the intake port member 4 provided in the intake hole 122 to be formed, and the water discharge portion 2 provided in the shower head connecting portion 11, and the shower hose connecting portion 13 has an axis of the main body 1 from the end face. A connecting groove 111 is formed along the direction and screwed into the inner wall, and a water flow guide pipe 113 having a water flow guide passage 112 formed therein is integrally formed on the bottom surface of the connecting groove 111, and the gas The mixing portion 12 is formed with a tapered space whose inner diameter gradually increases from one end of the water flow guide tube 113 toward the shower hose connecting portion 13 and an intake hole 122 drilled from the outer peripheral surface of the main body 1. . [Selection] Figure 1

Description

  The present invention relates to an aspirator device used by being attached between a shower head and a shower hose, and more particularly to a shower head aspirator device having a check valve corresponding to a first-stop shower head capable of stopping water on the shower head side.

  A conventional shower head device includes a water discharge portion that discharges water, and is used for bathing. However, the discharged water is simply water or warm water. The water itself has no effect. In view of this, an apparatus has been developed in which minute bubbles are mixed into the water discharged from the shower head to improve the cleaning power, save water, or massage.

  The shower head described in JP-A-2015-205039 is a shower head capable of synergistically enhancing the effect of carbon dioxide gas and the effect of microbubbles, and a main body that defines a flow path of water; A water sprinkling member having a plurality of sprinkling holes connected to the main body portion through which water that has passed through the flow path is discharged, and the main body portion has a structure that generates microbubbles in the water that passes through the flow path. When synergistically enhancing the effect of carbon dioxide gas and the effect of microbubbles, carbon dioxide is disposed upstream of the microbubble generation mechanism and reacts with water passing through the flow path to generate carbon dioxide gas. And a storage portion that defines a storage space in which the tablet can be stored.

  It can be said that the above-described shower head is inconvenient in use and lacks convenience before discussing synergistically enhancing the effects of carbon dioxide and microbubbles. That is, the provision of the microbubble generating mechanism and the storage space in which the carbonated tablet can be accommodated in the so-called grip portion of the shower head eliminates the room for providing the first stop type water stop device in the grip portion. Therefore, when stopping water discharge from the shower head, it cannot be operated at hand, and a faucet such as a mixing faucet must be operated. In addition, if any trouble occurs in the microbubble generating mechanism, the shower head itself must be replaced.

  In addition, most of the shower heads having the function of generating and / or mixing micro bubbles including the shower head described in JP-A-2015-205039 described above except for the form of externally connecting the micro bubble generating means are used in the shower head. Since it has a structure that includes microbubble generation and / or mixing means, there is no room for installing a water stop device of the first stop type, and when stopping water discharge from the shower head, operate a water tap such as a mixing water tap. There must be. In addition, if any trouble occurs in the microbubble generating mechanism, the shower head itself must be replaced. In addition, the structure is complicated, the manufacturing is not easy, and the manufacturing cost is high.

  Japanese Patent Publication No. 20006-97153

  This device provides an aspirator device for a shower head having a simple structure that can be detachably provided between an existing shower head and a shower hose with a simple operation, and that allows fine bubbles to be mixed into water. The task is to do.

  Also. This invention makes it a subject to provide the aspirator apparatus for shower heads which can be attached between the shower head and the shower hose which were provided with the first-stop type water stop apparatus.

  Therefore, the present inventor has conducted extensive research in view of the drawbacks found in conventional shower heads with microbubble generation and / or mixing means. As a result, one end is a shower hose connecting portion and the other end is a shower head connecting portion. And a main body configured as a gas mixing portion having a space formed inside, a sphere and an inlet member provided in an intake hole formed in the gas mixing portion, and a water discharge portion provided in the shower head connecting portion The shower hose connecting portion is formed with a connecting groove from the end surface along the axial direction of the main body and screwed into the inner wall, and a water flow guide passage is formed in the bottom of the connecting groove. A water flow supply pipe is integrally formed, and the gas mixing part is formed with a tapered space whose inner diameter gradually increases from one end of the water supply pipe toward the shower hose connection part, and from the outer peripheral surface of the main body The shower hose connecting portion has a mounting space, and one end is an open end, and is screwed into the outer peripheral surface and the inner peripheral surface. An aspirator device for a shower head, which has an open end and is threaded on the outer peripheral surface, has an inner diameter that gradually decreases at one end to form a tapered inner wall, and is screwed into the mounting space of the main body. Focusing on the points that can be solved, the present invention was completed based on such knowledge.

This device will be described below. The aspirator device for a shower head according to claim 1 is a shower head aspirator that is composed of a main body, a sphere, an air inlet member, and a water discharge part, and is interposed between the shower hose and the shower head. There,
The main body has a substantially cylindrical shape, one end is a shower hose connecting portion, the other end is a shower head connecting portion, and is defined between the shower hose connecting portion and the shower head connecting portion, forming a space inside The gas mixing part made,
The shower head connecting portion is formed with a connecting groove from the end surface along the axial direction of the main body and screwed into the inner wall, and the bottom surface of the connecting groove has a hollow column shape, and the inside of the gas mixing portion A water flow guide passage communicating with the space is formed inside,
The gas mixing portion is formed with a tapered space whose inner diameter gradually increases from one end of the water supply pipe toward the shower head connecting portion, and an intake hole formed from the outer peripheral surface of the main body.
The shower hose connecting part is formed continuously from the internal space of the gas mixing part, and has an attachment space for attaching the water discharge part. It is threaded on both the surface and
The sphere is movably provided in the intake hole,
The air inlet member has an annular shape, and is fitted and fixed in the air inlet hole.
The water discharge portion has a cylindrical shape, both ends are open ends, one end is a water flow entrance end, the other end is a water flow discharge end, and an inclined wall is formed at the water flow entrance end to form a tapered internal space Then, it is screwed in accordance with the thread formed on the inner peripheral surface of the shower head connecting portion on the water discharge end side of the outer peripheral surface, and screwed into the mounting space of the shower head connecting portion.

  According to the structure described above, when the water enters from one end of the main body and is discharged to the shower head, a venturi effect is generated, and negative pressure is generated, so that air is sucked from the intake holes, and fine bubbles and Get mixed into the water. The shower hoe head aspirator having such a simple structure can be detachably attached between a shower hose and a shower head by removing a commercially available normal shower head.

  The aspirator device for a shower head according to claim 2 is formed such that the inner diameter of the water flow discharge end of the water discharge section in claim 1 is narrowed at a ratio of about 4: 3 as compared with the inner diameter of the water flow guide passage. Is done.

  According to such a configuration, a preferable venturi effect can be generated in the aspirator device.

  According to a third aspect of the present invention, there is provided an aspirator device for a shower head, wherein an annular groove is formed in an annular shape along a circumference on the outer peripheral surface of the gas mixing portion of the main body according to the first aspect. Drill a hole.

  According to such a structure, when the grip portion of the shower head is gripped, the intake hole is not exposed to the outer peripheral surface of the aspirator. It is possible to prevent the intake holes from being blocked by hand.

  According to a fourth aspect of the present invention, the maximum inner diameter of the tapered space of the gas mixing portion in the first aspect is at least twice as large as the inner diameter of the water supply pipe.

  By defining the size of the tapered space of the gas mixing portion by such setting, a preferable Venturi effect can be obtained.

  The aspirator device for a shower head according to claim 5 is configured such that a part of the bottom inner wall of the suction hole 123 of the gas mixing portion of the main body according to claim 1 protrudes toward the center of the suction hole, At least one spherical contact portion is formed.

  According to such a structure, when air is sucked from the intake hole and enters the gas mixing portion, the sphere comes into contact with the sphere contact portion and stops reliably, and an air flow path can be secured. it can.

  The shower head aspirator device according to the present invention has a simple structure, is easy to manufacture and can reduce the manufacturing cost, and can be conveniently attached between the shower hose and the shower head. Therefore, the effect of enhancing the competitive ability as a product and promoting the spread can be obtained.

  In addition, when attached to a shower head provided with a first-stop type water stop device, even if water is stopped on the shower head side, water does not leak from the intake hole of the aspirator, and further convenience in use is obtained. .

  Furthermore, a water-saving effect is obtained by inhaling gas by the venturi effect and mixing fine bubbles into the water, and an effect of increasing the detergency of the shower by subdividing the water molecules is obtained. In addition to attachment, it can be diverted to facilities that require the supply of air to the water, such as water tanks for breeding ornamental fish, aquaculture ponds, etc., and has the advantage of high applicability.

  It is explanatory drawing which showed the cross-section of the aspirator for shower heads by this device.   It is the perspective view which showed the external appearance of the main body and water discharging part of the aspirator for shower heads disclosed in FIG.   It is a side view of the aspirator for shower heads disclosed in FIG.   In the shower head aspirator by this invention, it is explanatory drawing which showed the state in which water flows into a shower head, and the state of a spherical body.   In the shower head aspirator by this invention, it is explanatory drawing which showed the state of the spherical body when a water pressure acted on an inlet hole.   It is explanatory drawing which showed the usage condition of the aspirator for shower heads by this device.   It is explanatory drawing which showed the cross-sectional structure of the aspirator for shower heads by 2nd Embodiment.

  This device has a simple structure, is easy to manufacture, attach and detach, allows fine bubbles to be mixed in water, and can be attached to a shower head equipped with a pre-stop type water stop device. A head aspirator device is provided, one end of which is a shower hose connecting portion, the other end is a shower head connecting portion, and a middle is formed as a gas mixing portion having a space formed therein, and the gas It consists of a sphere and an inlet member formed in the intake hole formed in the mixing part, and a water discharge part provided in the shower head connecting part, and the shower hose connecting part has a connecting groove along the axial direction of the main body from the end face A water flow supply pipe having a water flow guide passage formed therein is integrally formed on the bottom surface of the connection groove, and the water supply portion is formed in the gas mixing portion. A tapered space in which the inner diameter gradually increases from one end of the pipe toward the shower hose connecting portion, and an intake hole drilled from the outer peripheral surface of the main body are formed. The shower hose connecting portion has a mounting space, and one end Is an open end, which is screwed into the outer peripheral surface and the inner peripheral surface, the water discharge portion has a cylindrical shape, has both ends as open ends and is screwed into the outer peripheral surface, and the inner diameter is gradually reduced at one end. An inclined inner wall having a tapered shape is formed and screwed into the mounting space of the main body. In order to describe the structure and characteristics of the shower head aspirator, a specific example will be given and described in detail below with reference to the drawings.

  As disclosed in FIG. 1, the aspirator device according to the present invention includes a main body 1, a water discharge unit 2, a sphere 3, and an intake port member 4. The state where the main body 1, the sphere 3 and the air inlet member 4 are assembled is as disclosed in FIG. 2, and the state where the water discharger 2 is attached thereto is as disclosed in FIG.

  The main body 1, the water discharge portion 2, and the intake hole portion 4 are each formed by injection molding by selecting an appropriate material such as ABS resin, for example. Therefore, in view of the existing injection mold and injection molding technology, the main body 1, the water discharge portion 2, and the intake port member 4 are made separate members in the embodiment for the sake of manufacturing convenience. If technically possible, the main body 1, the water discharge part 2, and the intake port member 4 may be integrally formed.

  The main body 1 has a substantially cylindrical shape, one end is a shower head connecting portion 11, the other end is a shower hose connecting portion 13, and is defined between the shower head connecting portion 11 and the shower hose connecting portion 13. The part where the above is formed is defined as a gas mixing part 12.

  The shower head connecting portion 11 is formed with a connecting groove 111 along the axial direction of the main body 1 from the end face, and is screwed into the inner wall of the connecting groove 111. As shown in FIG. 6, the connecting groove 111 is a portion provided for connecting the shower head 7. For this reason, the inner diameter, depth, and thread pitch of the connecting groove 14 are a general-purpose shower that is commercially available. It is set appropriately according to the outer diameter, length and thread pitch of the shower hose connecting part of the head.

  A water flow guide tube 113 extending from the bottom surface to the end surface of the main body 1 is integrally formed in the connection groove 111. The water flow guide tube 113 has a hollow column shape, a water flow guide passage 112 serving as a water flow path is formed inside along the axial direction, and one end of the water flow guide tube 113 is connected to the shower head connecting portion 11 as disclosed in FIG. Is connected to one end of the shower head 6 and the other end communicates with the space formed in the gas mixing portion 12. Therefore, the water flow guide passage 112 is a space continuous with the internal space of the gas mixing portion 12. Become.

  The gas mixing portion 12 has an internal space, and an inclined inner wall 121 is formed from one end of the water flow guide tube 113 on the shower head connecting portion 11 side of the internal space, and the inner diameter gradually increases toward the shower hose connecting portion 13. A tapered space is formed. In addition, an intake hole 122 that communicates with the internal space of the gas mixing unit 12 is formed from the outer peripheral surface of the main body 1.

  The tapered space formed by gradually expanding the inner diameter is preferably set so that the maximum inner diameter is at least twice as large as the inner diameter of the water flow guide tube 113.

  The intake hole 122 forms an annular groove 123 annularly along the circumference at a position close to the shower hose connecting portion 13 on the outer peripheral surface of the gas mixing portion 12, and is formed in the bottom surface of the annular groove 123. By forming the annular groove 123, the intake hole 122 is prevented from being blocked by a hand that grasps a portion of the aspirator device during use.

  Further, the spherical body 3 is movably provided in the intake hole 122 and the intake port member 4 is fitted therein. The air inlet member 4 is formed in an annular shape and has an air inlet at the center. When the air inlet member 4 is inserted, it is fixed firmly by selecting an auxiliary fixing method such as applying an adhesive.

  The shower hose connecting portion 13 is an internal space that is continuous from the internal space of the gas mixing portion 12, and includes an attachment space 131 for attaching the water discharge portion 2. One end of the shower hose 5 on the shower head attachment portion 51 side is an open end. In addition, both the outer peripheral surface and the inner peripheral surface are threaded. The outer diameter of the shower hose connecting portion 13 and the pitch and length of the thread formed on the outer peripheral surface are the general-purpose outer diameter, the thread pitch, and the length of the shower hose connecting portion of a commercially available shower head. Set appropriately according to the length. Further, the thread formed on the inner peripheral surface of the shower hose connecting portion 13 is used for screwing the water discharge portion 2.

  The water discharger 2 has a tubular shape, both ends are open ends, one end is a water flow entry end 23 into which a water flow enters, and the other end is a water flow discharge end 21 that discharges the water flow that has entered into the aeration unit 12. The inner diameter of the water flow discharge end 21 is narrower than the inner diameter of the water flow guide passage 112. Preferably, it is narrowed at a ratio of about 4: 3 as compared to the inner diameter of the water flow guide passage 112. For example, when the inner diameter of the water flow guide passage 112 is 4.5 mm, the inner diameter of the water flow entrance end 23 is preferably 3.5 mm.

  Further, the water discharge portion 2 forms an inclined wall 22 from the water flow discharge end 21, and is threaded on the outer surface near the water flow entrance end 23 in accordance with a thread formed on the inner peripheral surface of the shower hose connecting portion 13. Engrave. Therefore, the internal space of the water discharger 2 gradually increases in inner diameter on the water flow discharge end 21 side to form a tapered space.

  When assembling the aspirator device according to the present invention, the water discharge portion 2 is screwed from the opening end of the shower hose connecting portion 13 of the main body 1, the sphere 3 is inserted into the intake hole 122 of the gas mixing portion 12, and the intake port member 4 is It is inserted into the intake hole 122.

  When using the aspirator device according to the present invention, as shown in FIG. 6, the aspirator device is interposed between the shower head mounting portion 51 of the shower hose 5 and the shower head 6. That is, the shower head 6 screwed to the shower head mounting portion 51 at one end of the shower hose 5 is removed, and then the shower head 6 is screwed to the shower head connecting portion 11 of the main body 1. Is screwed to the shower hose connecting portion 13 of the main body 1 to attach the aspirator device according to the present invention.

  The aspirator device according to this device is installed between a shower hose connected to a water supply device such as a hot water supply device and a shower head, and when the faucet of the water supply device is opened, water enters from the water flow entry end 21, It is discharged to the gas mixing section 12 through a tapered space formed by the inclined wall 22 of the water discharge section 2, and is passed from the tapered space formed by the inclined inner wall 121 of the gas mixing section 12 to the shower head 6 through the water flow guide passage 113. Discharged. In this case, a negative pressure is generated by the Venturi effect, and air is sucked from the intake holes 122 to be mixed into water as fine bubbles. As shown in FIG. 4, the sphere 3 abuts against the inner wall of the intake hole 122 and the outer peripheral surface of the water discharger 2 and does not enter the internal space of the gas mixing part 12.

  As described above, the shower head aspirator according to the present invention can be detachably attached to a shower head already attached by a simple operation, and by sucking air and mixing fine bubbles into water, Improves cleaning power, saves water, or massages.

  Moreover, the shower head aspirator according to the present invention is suitable for application to a shower head having a first-stop type water stop device. As disclosed in FIG. Even when water is filled from the water stop device on the side to the faucet device and the water pressure acts toward the intake hole 122, the spherical body 3 blocks the intake hole 122, so that water is ejected from the intake hole 122. There is no.

  FIG. 7 discloses a second embodiment. In the second embodiment, a part of the inner wall of the bottom of the air intake hole 123 of the gas mixing part 12 protrudes toward the center of the air intake hole 123 to form at least one or more sphere-shaped contact parts 124 having a protruding edge shape. . A state in which the formed intake hole 123 formed with the sphere contact portion 124 is viewed from the inside of the gas mixing portion 12 is disclosed in a circle of an alternate long and short dash line in FIG. The drawing discloses an example in which two spherical contact portions 124 are formed by protruding from the inclined inner wall 121.

  According to the structure described above, when air is sucked from the intake hole 122 and enters the gas mixing part 12, the sphere 3 comes into contact with the sphere contact part 124 and stops reliably, and an air flow path is secured. Can do.

DESCRIPTION OF SYMBOLS 1 Main body 11 Shower head connection part 111 Connection groove 112 Water flow guide path 113 Water flow guide pipe 12 Gas mixing part 121 Inclined inner wall 122 Intake hole 123 Annular groove 13 Shower hose connection part 131 Installation space 2 Water discharge part 21 Water flow entrance end 22 Inclined wall 23 Water discharge end 3 Sphere 4 Inlet member 5 Shower hose 51 Shower head mounting portion 6 Shower head

Claims (5)

A shower head aspirator comprising a main body, a sphere, an air inlet member, and a water discharge portion, and being interposed between a shower hose and a shower head,
The main body has a substantially cylindrical shape, one end is a shower hose connecting portion, the other end is a shower head connecting portion, and is defined between the shower hose connecting portion and the shower head connecting portion, forming a space inside The gas mixing part made,
The shower head connecting portion is formed with a connecting groove from the end surface along the axial direction of the main body and screwed into the inner wall, and the bottom surface of the connecting groove has a hollow column shape, and the inside of the gas mixing portion A water flow guide passage communicating with the space is formed inside,
The gas mixing portion is formed with a tapered space whose inner diameter gradually increases from one end of the water supply pipe toward the shower head connecting portion, and an intake hole formed from the outer peripheral surface of the main body.
The shower hose connecting part is formed continuously from the internal space of the gas mixing part, and has an attachment space for attaching the water discharge part. It is threaded on both the surface and
The sphere is movably provided in the intake hole,
The air inlet member has an annular shape, and is fitted and fixed in the air inlet hole.
The water discharge portion has a cylindrical shape, both ends are open ends, one end is a water flow entrance end, the other end is a water flow discharge end, and an inclined wall is formed at the water flow entrance end to form a tapered internal space And screwing in accordance with a thread formed on the inner peripheral surface of the shower head connecting portion on the water discharge end side of the outer peripheral surface, and screwing into the mounting space of the shower head connecting portion. A shower head for aspirator.   2. The shower head according to claim 1, wherein an inner diameter of the water flow discharge end of the water discharge portion is formed to be narrow at a ratio of about 4: 3 as compared with an inner diameter of the water flow guide passage. For aspirator.   The annular groove is formed in an annular shape along the circumference on the outer peripheral surface of the gas mixing portion of the main body, and the intake hole is formed in the bottom surface of the annular groove. Shower head aspirator.   2. The shower head aspirator according to claim 1, wherein a maximum inner diameter of the tapered space of the gas mixing portion is at least twice as large as an inner diameter of the water supply pipe.   A part of the bottom inner wall of the air intake hole 123 of the gas mixing part of the main body protrudes toward the center of the air intake hole, and forms at least one protruding spherical contact part. The aspirator device for a shower head according to claim 1.

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