JP6608893B2 - Water stop method and water stop device - Google Patents

Description

The present invention relates to a water stop method and a water stop device for switching between water stop and water discharge.

  In recent years, shower heads having a water stop function are known. According to such a shower head, it is not necessary to specify the position of the currant by groping such as when washing hair, and water can be stopped only by operating the shower head at hand.

  In the conventional water stop structure, a partition wall is formed in a direction perpendicular to the water flow in the water channel, and a water passage hole in which a part of the partition wall is cut off is closed with a water stop valve such as a sphere, and the water stop valve is retracted. The thing of making it a structure and ensuring a water passage is known (for example, refer patent documents 1 and 2).

JP-A-10-141539 JP-A-9-117386

  The conventional water stop structure that closes the water passage hole of the partition wall formed in the water channel with a water stop valve or retracts the water stop valve needs to have the function of forming the partition wall and the water stop valve, and the structure is complicated. There is a problem that.

  Further, when the water passage hole is closed with a sphere, it is necessary to make the sphere surface and the partition wall watertight. However, since the sphere surface is a curved surface, the watertight structure may not be sufficiently secured.

  In addition, there is a problem that an operating rod or the like for operating a movable function exposed to the outside of the water stop structure interferes with the shower hook, making it difficult to hang the shower head on the shower hook.

  This invention is made | formed in view of the said situation, and it aims at providing the water stop structure which can implement | achieve a water stop function with a simple structure. It is another object of the present invention to provide a water stop structure in which a structure exposed to the outside hardly interferes with a shower hook.

The water stop method of the present invention includes a housing having a water passage inside, and is movable in a direction substantially perpendicular to the direction of water flow inserted in a hole formed in the housing and flowing through the water passage. The shower head includes a top portion that is supported by the housing and is exposed from the housing and a trunk portion that is disposed in the water passage and includes a tapered surface on the upstream side, and a water stop valve that closes the water passage. The water stop valve keeps rising while water is supplied into the housing, thereby opening the water passage in the housing and opening the water passage. When the head is housed in the recess in the shower hook, the top of the water stop valve exposed from the housing hits the inner wall of the shower hook, so that the top of the water stop valve is pushed into the housing, and the water stop Against the water pressure that raises the valve The valve is lowered, is intended to close the passage in the water channel.
Further, the water stop device of the present invention is movable in a direction substantially orthogonal to the flow direction of the water that is inserted into a hole formed in the case and provided with a water passage inside and flows through the water passage. A shower head comprising: a top portion that is supported by the housing and exposed from the housing; and a body portion that is disposed in the water passage and has a tapered surface on the upstream side, and that closes the water passage. And while water is being supplied into the housing, the water stop valve keeps rising, thereby opening the water passage in the housing and opening the water passage, When the shower head is stored in the recess in the shower hook, the top of the water stop valve exposed from the housing hits the inner wall of the shower hook, so that the top of the water stop valve is pushed into the housing, Against the water pressure that raises the stop valve Kitome water valve is lowered and is intended to close the passage in the water channel.

According to the water stop method and the water stop device of the present invention, the water stop valve that is movable in a direction substantially orthogonal to the water flow in the water passage is provided, and water stop can be achieved simply by pushing the water stop valve into the housing. A water stop function with a simple structure can be realized.

It is a disassembled perspective view which shows schematic structure of the shower system to which the water stop structure of this invention is applied. It is a figure which shows the cross section of a water stop adapter. It is a schematic diagram which shows the state which accommodated the shower head in the recessed part in the shower hook provided in the bathroom wall surface. It is a figure which shows the cross section of a water stop adapter. It is a figure which shows the cross-sectional circular water passage and the cross-sectional hexagonal water passage of this Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is an exploded perspective view showing a schematic configuration when the water stop structure of the present invention is applied to a shower system. The shower system 100 includes a shower head 101, a hose 103, and a water stop adapter 105 having a water stop structure connected between the shower head 101 and the hose 103. One end of the water stop adapter 105 is engraved with a screwed portion (not shown) that is screwed with the screwed portion 107 of the shower head 101, and the other end of the water stop adapter 105 is connected with a screwed portion (not shown) of the hose 103. A screwing portion 109 to be screwed is engraved.

  The water stop adapter 105 includes a water stop valve 113 that is supported by the housing 111 so as to be movable in a direction substantially orthogonal to the water flow direction in the cylindrical housing 111. The water stop valve 113 includes a hemispherical top portion 115 exposed from the housing 111 and a body portion 117 having a taper on the hose 103 side that is the upstream side when the water stop valve 113 is installed in the housing 111.

  FIG. 2 is a view showing a cross section of the water stop adapter 105. As shown in FIG. 2, the water supplied from the hose 103 side which is the upstream side in the housing 111 hits a tapered surface 201 formed on the body portion of the water stop valve 113. The taper surface 201 has a plurality of rectifying grooves in the taper direction (see FIG. 4). The water pressure applied to the tapered surface 201 generates a force that pushes the water stop valve 113 upward, and the water stop valve 113 provided so as to be movable in a direction substantially perpendicular to the water flow direction rises.

  While water is being supplied into the casing 111 from the hose 103 side, the water stop valve 113 keeps rising, thereby opening the water channel in the casing 111 and discharging water from the shower head 101. On the other hand, when the water supplied from the hose 103 side stops, the water pressure applied to the tapered surface 201 formed on the body of the water stop valve 113 decreases, and the force pushing the water stop valve 113 upward is weak. Thus, the water stop valve 113 descends.

  As long as water is supplied from the hose 103 side, the water discharge from the shower head 101 continues. When it is desired to stop the water discharge from the shower head 101 without stopping the water supply from the hose 103 side, that is, without operating the faucet or the currant, the top portion 115 of the water stop valve 113 exposed from the casing 111. Is pushed into the casing 111, and the water stop valve 113 is lowered against the water pressure that raises the water stop valve 113.

  When the water stop valve 113 is lowered and the peripheral end of the water stop valve 113 is brought into contact with the wall of the water passage in the housing 111, the water passage is blocked and water can be stopped. The peripheral end of the water stop valve 113 that is in contact with the water passage is preferably covered with an elastic member such as rubber in order to increase the watertight effect.

  FIG. 3 is a schematic view showing a state in which the shower head 101 is housed in a recess in the shower hook 301 provided on the bathroom wall surface. When water is supplied from the hose 103 side and discharged from the shower head 101, the shower head 101 is stored in the recess in the shower hook 301, and a hemispherical top portion 115 exposed from the housing of the water stop adapter 105 is formed. It hits the inner wall of the shower hook 301. As a result, the top 115 of the water stop valve 113 is pushed into the housing 111, and the water stop valve 113 is lowered against the water pressure that raises the water stop valve 113.

  The inner diameter of the shower hook 301 is designed to have a margin more than the outer diameter of the base of the shower head 101 so that shower heads of various thicknesses can be accommodated. The outer hemispherical top portion 115 of the water stop valve 113 exposed from the water stop adapter 105 can accommodate the water stop adapter 105 in the shower hook 301 while sliding the inner wall of the shower hook 301 and minimizing interference. .

  FIG. 4 is a view showing a cross section of the water stop adapter 105. The water stop adapter 105 forms a water passage having a regular hexagonal cross section in the housing 111. In the state in which the water stop valve 113 is housed in the housing 111, the tip shape of the water stop valve 113 is the shape of the inner wall of the housing 111 so that the peripheral end of the water stop valve 113 and the inner wall in the housing 111 are watertight. It is processed according to.

  When the inner wall of the casing 111 is watertight with the water stop valve 113, it is difficult to accurately curve the peripheral end shape of the water stop valve 113 with a conventional structure with a circular inner wall shape, and a highly accurate curved surface processing. There is a problem that the cost of parts increases by the amount required.

  As shown in FIG. 4, according to the present embodiment in which the shape of the inner wall of the casing 111 is a regular hexagonal cross section, the peripheral end of the water stop valve can be machined with only a straight portion, avoiding curved surface machining leading to cost increase. can do.

  In addition to the inner wall having a regular hexagonal cross section, an inner wall shape having a triangular section or a rectangular section may be considered. However, when the inner wall having a triangular cross section is watertight, the acute angle portion of the inner wall must be watertight, and when the inner wall having a quadrangular cross section is watertight, the right angle portion of the inner wall must be watertight.

  On the other hand, when the inner wall having a regular hexagonal cross section is watertight as in the present embodiment, one inner angle of the inner wall can be formed at an obtuse angle of 120 degrees. Watertight accuracy is more easily improved when the obtuse angle portion is watertight than when the acute angle portion or the right angle portion is watertight.

  In addition to a regular hexagonal cross-section water passage, it is also possible to select a water passage having an obtuse angle on one inner wall, such as a pentagonal cross section or an octagonal cross section. However, in the case of a water passage having one obtuse angle, such as a pentagonal cross section or an octagonal cross section, there are the following problems.

  FIG. 5 is a view showing a water passage having a circular cross section and a water passage having a hexagonal cross section according to the present embodiment. As shown in FIG. 5, let S be the cross-sectional area of the water passage 501 having a circular cross section. When designing a water passage having the same area as the cross-sectional area S, the circumferential length L1 of the water passage 503 having a regular hexagonal cross section is known to be shorter than the circumference L2 of the water passage 501 having the cross-sectional area S. ing.

  On the other hand, when trying to design a water passage with a pentagonal cross section or an octagonal cross section with a cross-sectional area S, it is known that the circumference of the water passage is longer than the circumference of the water passage with a circular cross section.

  The cross-sectional area of the waterway affects the amount of water. Therefore, the cross-sectional area of the water passage must be at least as large as the cross-sectional area S of the conventional water passage having a circular cross section. When designing a waterway with the same area as the cross-sectional area S, the circumference of the pentagonal waterway and the octagonal waterway that is longer than the circumference of the circular waterway is longer than before. As a result, the watertight length at which the water stop valve and the water passage come into contact with each other is reduced, and the watertight performance may be reduced.

  As in the present embodiment, the circumferential length L1 of a water passage having a regular hexagonal cross section is shorter than the circumference L2 of a conventional water passage having a circular cross section. Therefore, the watertight length at which the water stop valve and the water passage come into contact with each other can be shortened as compared with the conventional case, and the watertight performance can be improved.

  In the embodiment described above, the case where the water stop structure is applied as an adapter installed between the hose and the shower head has been described. Accordingly, a shower system having a water stop function can be realized by simply connecting a water stop adapter between the hose and the shower head without replacing an existing shower head.

  In addition to realizing the water stop function as the water stop adapter, the shower head itself may have a water stop structure, or the hose may have a water stop structure.

  In the embodiment described above, the case where the water stop structure according to the present invention is applied to a shower system has been described. However, in addition to the shower system, water supplied through a hose, such as a garden watering system, can be sprinkled or discharged. It can be applied to the running water system.

  It can be used for a water flow system for spraying or discharging water supplied through a hose.

DESCRIPTION OF SYMBOLS 100 Shower system 101 Shower head 103 Hose 105 Water stop adapter 107, 109 Screw part 111 Case 113 Water stop valve 115 Top part 117 Trunk part 201 Taper part 301 Shower hook 501, 503 Water passage

Claims (2)

A housing with a water passage inside;
A top portion that is inserted into a hole formed in the housing and is movably supported in a direction substantially perpendicular to the direction of water flow of water flowing in the water passage, and is exposed from the housing, and the water passage A shower head including a body portion provided with a tapered surface on the upstream side, and a water stop valve for closing the inside of the water passage,
While the water is being supplied into the housing, the water stop valve keeps rising, thereby opening the water passage in the housing,
When the shower head is housed in the recess in the shower hook in a state where the water passage is open, the top portion of the water stop valve exposed from the housing hits the inner wall of the shower hook, thereby the water stop valve. The water stop method is characterized in that the top portion of the water is pushed into the housing, the water stop valve descends against the water pressure that raises the water stop valve, and the water passage is closed. A housing with a water passage inside;
A top portion that is inserted into a hole formed in the housing and is movably supported in a direction substantially perpendicular to the direction of water flow of water flowing in the water passage, and is exposed from the housing, and the water passage A shower head including a body portion provided with a tapered surface on the upstream side, and a water stop valve for closing the inside of the water passage,
While the water is being supplied into the housing, the water stop valve keeps rising, thereby opening the water passage in the housing,
When the shower head is housed in the recess in the shower hook in a state where the water passage is open, the top portion of the water stop valve exposed from the housing hits the inner wall of the shower hook, thereby the water stop valve. The water stop device is characterized in that the water stop valve is lowered against the water pressure that raises the water stop valve, and the water stop passage is blocked.

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