JP4113487B2 - Incoming / outgoing water unit for hot water circulators for home tub - Google Patents

Description

  The present invention relates to an incoming / outgoing water unit for a hot water circulator for a domestic bathtub, and more particularly to an incoming / outgoing water unit for a hot water circulator for a domestic bathtub that has improved safety without reducing the suction force.

  Hot water circulators for home tubs consist of a circulator body placed outside the tub and a water inlet / outlet unit placed inside the tub, and the water inlet / outlet unit has a suction port on the side of the tub and a water outlet on the upper side. Installed and used.

  Conventionally, hot water circulators for home tubs that include a water inlet / outlet unit did not belong to a specific product based on the Consumer Product Safety Act. However, recently, with the occurrence of an accident in which hair is sucked into the inlet / outlet of the water inlet / outlet unit and cannot be removed, a hot water circulator for household bathtubs has been added to a specific product based on the Consumer Product Safety Act. It was subject to regulation.

  In other words, the essence of the law is that all circulators with a flow capacity of 10 liters per minute or more are applicable to all bath water circulators that circulate and maintain, purify, and sterilize bath water. Using hair, pull the test hair in the vertical direction and at an angle of 40 degrees from the vertical until the test hair leaves the inlet, measure the suction force 30 times, and in any case should not exceed 20 Newtons (2 Kg) That's it. This measurement needs to be performed not only in a state in which all the parts are mounted but also in a state in which a detachable part is removed, and in any case, the above numerical value should not be exceeded.

  Thus, as the hot water circulator for domestic tubs is subject to the above-mentioned laws and regulations and the maximum value of the suction force at the water inlet is restricted, a water inlet is provided as one of the countermeasures. It is considered that a large number of small holes are formed on the entire surface of the filter case cover. This is intended to disperse the water absorption force by providing a large number of water absorption points and to reduce the water absorption force at the water inlet.

However, in such a configuration, the water absorption power at the water intake port is reduced, so that it conforms to the regulations of the above law, but the water absorption force at the water intake port is reduced, so there is sufficient dust in the floating hot water. As a result, the hot water circulation function, which is the main function of the hot water circulator for household bathtubs, that is, the purification and sterilization functions of the hot water in the bathtub is reduced.
JP-A-8-52499 JP 10-15317 A JP 10-33918 A

  The present invention has been made in view of the above-described problems in the prior art, sufficiently conforms to the regulations of the Consumer Product Safety Act, and in the hot water without impairing the function of the conventional hot water circulator for domestic bathtubs. It is an object to provide an incoming / outgoing water unit for a hot water circulator for a domestic bathtub that can sufficiently suck dust and the like from the water inlet and can easily wash or replace a filter or the like inside the incoming / outgoing water unit. To do.

  The invention according to claim 1 for solving the above-mentioned problem is a hot water that is connected to the circulator body and can be installed on the inner surface of the bathtub, and the hot water in the bathtub is introduced into the circulator body and sterilized and purified. A water inlet / outlet unit for returning the water to the bathtub again, comprising a filter case that sucks in the hot water in the bathtub, and a block in which a large number of small holes are provided in the water inlet provided in the cover of the filter case. It is an incoming / outgoing water unit of a hot water circulator for domestic tubs, characterized in that a configured primary filter is installed.

An internal filter is disposed at the attachment part of the filter case of the main body case, and the internal filter is a perforated plate having a large number of small holes, leaving the upper part.

Further, the invention according to claim 2 for solving the above problem is that the entire filter case is detachable from the main body case, and the filter case is removed from the main body case for cleaning. It is a hot water circulator in / out unit for domestic tubs that can be used.

  The block with a large number of small holes inserted in the water inlet allows you to avoid the situation where your hair is strongly sucked into the water inlet. While protecting, there is an effect that the hot water in the bathtub can be absorbed and purified and sterilized by the conventional suction force.

  According to the water inlet / outlet unit in which the filter case according to claim 2 is removable from the main body case, the filter can be easily cleaned, and the water inlet / outlet unit with an internal filter disposed in the filter case attaching / detaching portion according to claim 3. According to the present invention, there is an effect capable of completely preventing the hair from being sucked in three stages, and the internal filter according to claim 4 is a multiple plate in which a large number of small holes are perforated leaving an upper portion. According to the water inlet / outlet unit, even when the filter case is detached from the main body case, there is an effect that hair can be prevented from being sucked.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an exploded perspective view of an incoming / outgoing water unit of a hot water circulator for a domestic bathtub according to the present invention, which includes a main body case 1, a filter case 2 detachably attached to the main body case 1, and a water inlet 4. And a case cover 3.

  A suction cup 5 for fixing it to the inner surface of the bathtub is attached to the main body case 1 at an appropriate place. In the illustrated example, it is installed on both side surfaces and the lower surface in a swingable state.

  On the upper surface of the main body case 1, a water inlet pipe 6 connected to a water inlet hose extending to a circulator main body (not shown) and a water outlet pipe 7 connected to a water outlet hose extending from the circulator main body are provided.

  The water discharge pipe 7 also protrudes into the main body case 1, and a water discharge side short hose is connected thereto, and the other end of the water discharge side short hose is the inner side of the main body case 1 of the nozzle 8 installed on the surface side of the main body case 1. Connected to the part. Therefore, hot water heated and purified in the circulator main body is ejected from the nozzle 8 into the bathtub through the outlet pipe 7 and the outlet side short hose.

9 is a foaming tube branched from the inner side of the main body case 1 of the nozzle 8 and comes out from the upper surface of the main body case 1, and its tip is guided to the bottom surface of the bathtub. A foaming attachment is appropriately attached to the tip . An opening / closing valve is assembled in the middle of the foaming tube 9, and a foaming knob 10 for opening / closing the opening / closing valve is installed on the surface side of the main body case 1.

  A lower part of the surface of the main body case 1 serves as a filter case joint 11. The filter case joining portion 11 is slightly lowered from the surface of the main body case 1, and a fitting hole 13 into which a joining tube 12 protruding from the bottom surface of the filter case 2 is fitted is formed in the center portion.

  In addition, the joining cylinder 12 is usually formed with appropriate slits so that the insertion into the fitting hole 13 is smoothly performed, and in close contact with the inner wall of the fitting hole 13 at the time of fitting. Protrusions protruding slightly are provided on the surface.

  A fitting hole cap 15 as shown in FIG. 2 is attached to the inner surface of the filter case joint 11 by screwing or the like. The fitting hole cap 15 includes an internal filter 16 such as a perforated plate having a size that completely covers the fitting hole 13, and has a hose attachment portion 17 that extends sideways. A water inlet side short hose is fitted to the hose attachment portion 17, and the other end of the water inlet side short hose is guided upward and connected to the protruding portion in the main body case 1 of the water inlet pipe 6.

  Preferably, the internal filter 16 is a perforated plate, and the small holes are formed leaving the upper part. In the illustrated example, a V-shaped small hole non-perforated portion 14 is provided in the upper portion (see FIG. 2). Since the small hole non-piercing portion 14 is close to the hose attachment portion 17 having a strong suction force, even if the filter case 2 is removed and used, the hair is once pulled downward. Therefore, it does not become difficult to be pulled out by being pulled into the upper hose attachment portion 17 and does not exceed the regulation value by the above law.

  The central portion of the inner bottom surface of the filter case 2 is opened along the joining cylinder 12, and a water passage spacer 19 is appropriately installed on the opening portion and the entire inner bottom surface, and the secondary filter 18 is disposed thereon. The illustrated water flow spacer 19 has a porous disk arranged in the center, and a number of partition plates are provided in the radial direction from the porous disk. The partition plate is separated from the one connected to the porous disk. And every other.

  The filter case cover 3 that covers the filter case 2 includes a flat water inlet 4 as in the conventional case. In the present invention, the primary filter 20 is fitted into the inlet of the water inlet 4. The primary filter 20 is for preventing the bather's hair from being sucked in without excessively reducing the circulation flow rate. For example, the primary filter 20 is formed of a resin block having a depth of 1 cm or less through which a large number of small holes 21 are formed. The arrangement of the small holes 21 may be regular or irregular, and small holes 21 of different sizes may be mixed (see FIG. 4).

  The incoming / outgoing water unit according to the present invention having the above configuration is fixed to the inner surface of the bathtub using the suction cup 5 as in the conventional case. When the operation of the circulator body is started, hot water containing floating dust in the bathtub is sucked into the filter case 2 from the water inlet 4 and filtered by the secondary filter 18.

  The hot water filtered by the secondary filter 18 enters the fitting hole cap 15 through the internal filter 16, is then introduced into the circulator body through the water inlet pipe 6, is sterilized and purified, and is heated as necessary. . The heated and purified hot water is sent from the water discharge pipe 7 to the nozzle 8 and jetted into the bathtub.

  Since the primary filter 20 exists at the inlet of the water inlet 4, it is possible to prevent the bather's hair from being drawn into the filter case 2. Although the suction force at the water inlet 4 is slightly reduced by the presence of the primary filter 20 (about 5% in one test example), it does not interfere with the collection of dust floating in the bathtub. As a result, the function of the hot water circulator is substantially unaffected.

It is a disassembled perspective view of the incoming / outgoing water unit which concerns on this invention. It is a perspective view which shows the fitting hole cap of the water inlet / outlet unit which concerns on this invention. It is a perspective view which shows the filter case and filter case cover of the water supply / exit unit which concern on this invention. It is a figure which shows the primary filter of the water inlet of the water inlet / outlet unit which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body case 2 Filter case 3 Filter case cover 4 Water inlet 5 Suction cup 6 Water inlet pipe 7 Water outlet pipe 8 Nozzle 9 Foaming tube 10 Foaming knob 11 Filter case joint part 12 Joint cylinder 13 Fitting hole 14 Small hole non-perforated part 15 Fitting hole cap 16 Internal filter 17 Hose attachment part 18 Secondary filter 19 Water flow spacer 20 Primary filter

Claims (2)

Cardiovascular is connected to the body I installable der the bathtub sides, introducing the hot water in the bathtub to the circulating body, the hot water which has been sterilized purified a incoming water outlet unit for back into the tub A filter case that sucks in the hot water in the bathtub, and a primary filter composed of a block having a large number of small holes is installed in a water supply port provided in the cover of the filter case. An inlet / outlet water unit for a hot water circulator for domestic tubs , wherein an internal filter is disposed in the filter case mounting part, and the internal filter is a perforated plate having a large number of small holes, leaving the upper part .   The domestic bathtub according to claim 1, wherein the entire filter case is detachable from a main body case to which the filter case is attached, and the filter case can be cleaned by removing the filter case from the main body case. Incoming / outgoing water unit for hot water circulators.

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