JP3073861B2 - Bath water sterilizer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a sterilizing apparatus for clarifying and purifying bath water in a bath water circulating apparatus which circulates and purifies bath water in a bath tub to enable efficient use. The purpose is to assemble the sterilizer,
Dismantling work is to be performed quickly and easily.

[0002]

2. Description of the Related Art Various types of so-called bath water circulating bath tub devices have been developed which circulate and purify bath water in a bath tub so as to keep the bath water clear and maintain the bath water at a set temperature at which the bath water can always be bathed. . This type of bathtub device has a built-in heater that keeps the bathwater at a constant temperature, and removes foreign matter such as fine dust and scale floating in the bathwater to keep the bathwater clear and active at all times. A filtration device for sterilizing, and a sterilization device for sterilizing bacteria in the bath water, each of which is connected to the bath so as to be able to communicate with the bathtub, and including a circulation pump for circulating the bath water in the piping system. Have been. When the circulating bath apparatus is installed, for example, in a general home, the bath can be bathed at any time for 24 hours without changing the bath water every day.

[0003] In the circulating bathtub apparatus, since the bathwater is circulated and purified and used repeatedly, it is necessary to prevent the propagation of bacteria due to the contamination of the bathwater after bathing and the occurrence of turbidity due to the scale. Since then, the company has been purifying the bath water using a filtration device and a sterilization device, and has been working to clarify it. In particular, the breeding of bacteria and the turbidity of bath water not only give a bather discomfort, but are not preferable from the viewpoint of hygiene management. For this reason, after filtering the bath water, the bath water is further irradiated with ultraviolet rays to sterilize and purify bacteria and other organic substances such as scalp that have propagated in the bath water, and to obtain clean bath water without turbidity or odor. .

[0004] Various devices have been developed and proposed as devices for sterilizing and purifying the bath water by irradiating the bath water in the circulation path with ultraviolet rays. As a schematic configuration of most sterilizers, for example, JP-A-63-156
The one disclosed in Japanese Patent Publication No. 590 has been proposed. That is, an ultraviolet lamp is accommodated in a water-blocking body formed in a hollow cylindrical shape by ultraviolet-transmitting glass, and this water-blocking body is removably inserted into a metal container provided with an inlet and an outlet through which bath water flows. The water blocking body is provided with a projection for preventing fall and a seal member for preventing water leakage around the upper and lower opening edges of the water blocking body, and is arranged in a circumferential direction between the mounting portion of the metal container. A cap-shaped screw body is screwed from the upper and lower sides of the water barrier into a mounting portion of the metal container in a watertight manner, and the water barrier is detachably attached to the center of the metal container. On the outer peripheral surface of the water barrier, bath water flowing through the metal container is irradiated with ultraviolet rays from an ultraviolet lamp to sterilize and purify the bath water.

[0005]

However, the sterilizing apparatus has the following problems. (1) Since the water blocking body for storing the ultraviolet lamp is formed in a hollow cylindrical shape, when assembling the sterilizing apparatus,
In addition, the lower end of the opening is closed by screwing a cap-shaped screw to the mounting part of the metal container. In this method, after the energizing circuit of the ultraviolet lamp is once opened, the screw body of the upper mounting portion of the metal container is removed, and the ultraviolet lamp is extracted from the water blocking body. However, in this case, if the screw is removed from the metal container during the circulation of the bath water, the fixing of the sealing member is loosened, and the circulating bath water may leak or overflow from this portion. As a result of temporarily stopping the water circulation operation and removing the screw body, there is a possibility that the filtering function of the bath water is impaired or the bath water in the heating device is locally heated.

(2) In addition, during the circulation of the bath water, when the scale of the water is cut off due to the adhesion of scale, hair, dust, etc. to the outer peripheral surface of the water cut-off body, the irradiation sensitivity of the ultraviolet lamp is reduced. When taking out and cleaning from the metal container, since the water blocker itself is formed in a hollow cylindrical shape, the power supply to the ultraviolet lamp, the heating device, the circulation pump, etc. is cut off. After draining the water from the drain once, it is necessary to remove the water blocking body from the inside of the metal container for cleaning by unscrewing the screw body screwed on the upper and lower parts of the mounting portion of the metal container. there were. That is, since the water barrier is formed in a hollow cylindrical shape as described above,
If the bath water in the metal container is not drained, the ultraviolet lamp is immersed in the bath water or the bath water flows into the water shut-off body when the water shut-off body is reassembled. Therefore, when cleaning the water blocker, the work is not only troublesome and time-consuming, but also because the work must be performed after draining the bathwater in the bathwater circulation path.
It was very uneconomical because the bath water was drained.

(3) Further, in the sterilizing apparatus, when the water blocking body is inserted into and removed from the metal container, it is screwed into the metal container in order to ensure a sealing effect with the sealing member. The water shield must be removed from the metal container or inserted after removing the lower pair of screws. However, since the work needs to be performed using a narrow piping system in the circulating bathtub apparatus, it requires not only labor and labor, but also causes a water leakage accident if the screw is not securely fastened. Since there is a possibility that the user, such as a general household, cannot easily clean the water blocker, he / she has to rely on a specialized company, and as a result, there is a disadvantage that the maintenance and management costs of the circulation type bathtub apparatus are increased.

SUMMARY OF THE INVENTION In view of the various problems described above, the present invention involves the replacement of an ultraviolet lamp and the cleaning of a protective tube having excellent ultraviolet light permeability, which is housed while shutting off the ultraviolet lamp from the bath water. Bath water that can be easily replaced and cleaned without having to drain or drain the bath water from the circulation path, making assembly and disassembly of the bath water sterilizer quick and easy. It is to provide a sterilization device.

[0009]

SUMMARY OF THE INVENTION According to the present invention, an ultraviolet lamp is inserted into a bottomed cylindrical protective tube excellent in transmission of ultraviolet light, and the protective tube is attached to the upper side of the body and the lower part of the body. At the end, it fits into a metal cylindrical container pipe-connected to a piping system constituting a bath water circulation path, and the outer periphery of the upper opening end side of the protective tube, between the opening of the cylindrical container. The inserted sealing means is fastened integrally with the cylindrical container with a fastening fitting.
By fixing, the protective tube is suspended and held in the cylindrical container via the sealing means, and thereafter, a cover body for closing the open end of the protective tube at the upper open end thereof is provided. Since the bath water sterilizing device is configured to be detachably locked to the sealing means, the operation is as follows.

[0010]

According to the structure of the present invention, a bottomed cylindrical protective tube containing an ultraviolet lamp is loosely fitted in a cylindrical container through which bath water flows with a sealing means interposed therebetween. Is fastened and fixed integrally with the cylindrical container in one operation by a clamp, and the protective tube is suspended and held in the cylindrical container, and the open end of the protective tube is closed openably and closably by a cover body. When the ultraviolet lamp is to be replaced due to its life or the like, if the cover is opened, only the ultraviolet lamp can be easily taken out from the protective tube. In addition, since the protective tube is completely sealed from the cylindrical container by the sealing means, the bath water does not leak at all.

When the protective tube is to be cleaned, the protective tube is easily removed from the cylindrical container by releasing the fixing means from the cylindrical container, that is, by removing the fastener. Therefore, the protection tube can be easily cleaned. In this case, since the protective tube itself is formed in a bottomed cylindrical shape, the protective tube can be removed and inserted without draining the bath water in the cylindrical container. In addition, the circulation bathtub device can be driven immediately after the protection tube is cleaned, which is convenient.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a schematic configuration diagram of a bath water circulation type bathtub apparatus. In the figure, reference numeral 1 denotes a bathtub, and 2 denotes a bathwater circulation apparatus used for filtering and sterilizing the bathwater in the bathtub 1 and keeping it warm and heated. Reference numeral 3 denotes a bath water return port provided in the bathtub 1, and its tip is formed in, for example, a tapered shape in a nozzle shape.
Reference numeral 4 denotes a bath water inlet, and a stainless mesh filter or the like is attached to the open end. The bath water return port 3 is connected to a bath water return pipe 5, and the bath water intake port 4 is connected to a bath water outflow pipe 6, and these return pipes 5 and the outflow pipe 6 are communicated with each other to form a bath water circulation path. 7 is constituted.

Next, the bath water outflow pipe 6 is connected to a bath water circulation path 7.
The circulating pump P is connected via a _first solenoid valve V1 to the suction port a side of the circulating pump P. On the discharge port b side of the circulation pump P, a bath water filtration device 8, a bath water heating device 10 having a built-in electric heater 9, a sterilization device 12 containing an ultraviolet lamp 11 for sterilization, and a second solenoid valve V ₂ Are connected to each other via a bath water return pipe 5 in the bath water circulation path 7. V ₃ is an electromagnetic valve for opening and closing the bath water return pipe 5 to open and close the atmosphere. The solenoid valve V ₃ is connected to the bath water return port 3 of the bath water return pipe 5 through the air flow pipe 13. by connecting possible side communicates with the case of opening the solenoid valve V _3, results in the bath water return pipe 5 communicates with the atmosphere, the bath water return port 3 occurs when returning the bath water in the bathtub 1 by a negative pressure in the vicinity of the air in the bath water circulating unit 2, so from the air flow pipe 13 can be discharged into the bathtub 1, if the return of the bath water when opened solenoid valve V _3, bathtubs Air bubbles can easily be ejected into the bath water in the bath.

Next, the structure of the bath water sterilizing device 12 connected to the bath water circulating device 2 by piping will be described with reference to FIGS. In FIG. 2, reference numeral 15 denotes a metal cylindrical container which is formed in a hollow cylindrical shape and has a high reflectance of ultraviolet rays. torso lower end of the container 15 to the second solenoid valve V ₂ side, it is connected by piping to the bath water circulation passage 7 via the return pipe 5 respectively bath water. Reference numeral 16 denotes a ring-shaped support ring welded to the inner peripheral edge of the upper opening of the cylindrical container 15.
A flange edge 16a having substantially the same diameter as that of the outer periphery is circumferentially provided outward. Reference numeral 17 denotes a protective tube, which accommodates the ultraviolet lamp 11 in a detachable manner and is inserted into the cylindrical container 15 through the support ring 16 and is made of a material such as quartz or fluororesin, which is excellent in transparency to ultraviolet light. As a result, the ultraviolet lamp 11 and the bath water are satisfactorily shut off to prevent leakage of the bath water.

Reference numeral 18 denotes a support tube for supporting the protection tube 17 which fits inside the cylindrical container 15 on the open end of the support ring 16, and the structure thereof is as shown in FIG. Tube 17
Has a diameter dimension that allows it to be inserted, and is fitted to the support ring 16. The inside of the body center portion is provided with an inclined surface a that is inclined outward by a predetermined angle, and the outside thereof has a flange edge 16 a of the support ring 16. Is formed around the center of the body to the upper part, and a screw hole b is formed on the inside, and the outer peripheral edge of the upper opening end is formed on the outer peripheral edge of the upper opening end. Ring-shaped hook c
The support cylinder 18 is configured by circling. In FIG. 2, d is a seal member made of an O-ring or the like inserted between the concave groove on the outer periphery of the lower part of the support cylinder 18 and the inner peripheral surface of the support ring 16.

In order to fit the protective tube 17 into the cylindrical container 15, the protective tube 17 is first inserted into the support tube 18, and then the inclined surface a on the inner side of the center of the support tube 18. To
A rubber packing 19 having a V-shaped cross section is inserted from the outside of the upper opening end e of the protection tube 17 to be interposed between the protection tube 17 and a resin slip ring 20 is mounted on the packing 19. . As a result, as shown in FIG. 2, the protective tube 17 is held without being pulled out by the elastic force of the rubber packing 19, and in this state, the protective tube 17 is loosely fitted in the cylindrical container 15, and 18 is inserted into the support ring 16 through the seal member d to thereby lock the stepped portion 18a to the support ring 1.
When the protective tube 17 is engaged on the flange 16a of the sixth tube 6, the protective tube 17 is suspended in the cylindrical container 15 as shown in FIG. Reference numeral 21 denotes a tightening nut having an engaging portion at the lower portion of the inner peripheral surface which is in contact with the opening edge of the protective tube 17 and a flange extending from the outer peripheral surface and in contact with the upper end of the support tube 18. Nut 2
When the screw 1 is screwed into the screw hole b of the support cylinder 18, the tightening nut 2
A rubber packing 19 is pressed and urged toward the outer peripheral surface side of the protective tube 17 via a slip ring 20 at a lower end of the support tube 1 so that the protective tube 17 does not fall into the cylindrical container 15.
8 can be supported.

As described above, the protection tube 17 is provided on the support ring 1.
6, the opening end e is protruded above the cylindrical container 15 by the sealing means 22 configured by combining the support cylinder 18, the rubber packing 19, and the tightening nut 21, as shown in FIG. Can be loosely held with its upper side sealed. Reference numeral 23 denotes a fastener for fastening the support ring 16 and the support cylinder 18, and has a structure in which a metal plate such as a stainless steel plate having a spring property is formed into a substantially C-shaped planar shape as shown in FIGS. And the composition parts f,
f is formed by drilling an arc-shaped notch hole 24 to the free ends g, g of the tip bent in a C shape. Fastening bracket 2
At the time of mounting 3, as shown in FIGS. 4 and 5, the free ends g, g, which are bent into a C-shape, which are the ends, are pressed against the outer peripheral surfaces of the support ring 16 and the support cylinder 18, respectively. Meanwhile, the arc-shaped notch holes 24 on the free ends g, g are engaged with the flange 16a of the support ring 16 and the locking step 18a of the support cylinder 18 so as to be engaged. When the bridging portion 23 of the 23 is strongly pushed, the clamp 23 moves to the left in FIG. 5 while its free ends g, g are expanded along the outer circumferences of the support ring 16 and the support tube 18. The bent portions f, f of the fastening member 23 cause the elastic force of the bent portions f, f
5 as shown in FIG.
The flange 16a and the locking step 18a are engaged with the cutout holes 24 provided in the curved portions f, f, so that the support ring 16 and the support tube 18 are fastened and held so as not to move up and down. That is, the protection tube 17
Is fixed so that it does not come off from the cylindrical container 15.

Reference numeral 26 denotes a cover made of a synthetic resin for closing the opening end e of the protection tube 17, and as shown in FIG.
A rubber bush 27 that inserts and supports the lead wire 11a of the ultraviolet lamp 11 inserted into the protective tube 17 above the protective tube 17 and a portion corresponding to the opening end e of the ultraviolet lamp 11 A bath water detecting means 28 for immediately detecting when the body is immersed in bath water is attached. Then, the cover body 26 is hooked on a hook c of the support tube 18 with a locking hook 29 protruding downward at an interval of, for example, 180 ° below the peripheral edge of the cover body 26, thereby disinfecting the sterilizing device. 12 can be detachably attached. Numeral 30 denotes a hook which is provided on the cover 26 and locks the bath water detecting means 28 so that it cannot be removed. The bath time detecting means 28 sets the thermal time constant to, for example, 70 ° C., and when immersed in bath water having a hot water temperature of about 40 ° C., the thermal time constant drops rapidly and the resistance value increases. For example, a self-heating type thermistor that causes voltage fluctuation (increases the voltage value) is used.

In FIG. 1, reference numeral 31 designates first to third solenoid valves V _{1 to} V ₃ , bath water temperature sensors S _{1 to} S ₃ arranged in a circulation pump P, a bath water circulation path 7 and the like, and circulation of bath water. A control device having a built-in CPU for controlling the operation of a pressure sensor S ₄ for detecting pressure, a switching element Th for turning on and off the electric heater 9 as necessary, and the like. 32. In addition, 33
Indicates a remote control unit connected to the control device 31 by, for example, a lead wire 34. The unit 33 includes a main switch, a temperature, a timer, various switches such as a heat retaining unit, and a display unit for displaying temperature, time, and the like. Etc. are provided.

Next, the operation will be described. In the bath water circulating device 2 having the above-described configuration, the bath water sucked from the bath water intake port 4 of the bathtub 1 is introduced into the bath water circulating device 2 through the bath water pipe 6. The bath water that has flowed into the bath water circulation device 2 is guided to a circulation pump P, and the bath water discharged by the pump P is then introduced into a bath water filtration device 8, and a filter medium filled in a filter tube (not shown). When passing through, the pollutants such as fats and organic matter are removed, filtered into clear bath water, and flow into the heating device 10. After the bath water flowing into the heating device 10 is heated to a predetermined set temperature, the bath water is heated.
While circulating in the bath 2, organic matter such as bacteria and scales propagated in the bath water is sterilized and purified by the ultraviolet lamp 11 and passed through the bath water return pipe 5, the bath water return port 3 and into the bath tub 1. Since the bath water is refluxed, the bath water is always kept clear at a constant temperature as described above.

As described above, in order to keep the bath water in the bath tub 1 clear at all times, the filter medium in the bath water filtration device 8 disposed in the bath water circulation path 7 is periodically replaced or sterilized. Apparatus 1
By appropriately checking the irradiation degree of the ultraviolet lamp 11 in 2, clear water without turbidity or odor can be obtained. For this reason, the sterilizing device 12 constantly or intermittently energizes the ultraviolet lamp 11, and irradiates the bath water circulating in the bath water circulating path 7 with ultraviolet light from the ultraviolet lamp 11 in the cylindrical container 15 to sterilize the bath water. It is provided so as to purify and circulate clear bath water in the bathtub 1.

In the disinfection device 12 for disinfecting and purifying the bath water, for example, when the ultraviolet lamp 11 has reached the end of its life, or when the ultraviolet lamp 11 is cut off during lighting and turned off, the lead wire 11a must be replaced. After temporarily disconnecting the connection terminal (not shown) attached to the tip from the power supply circuit to cut off the power supply to the ultraviolet lamp 11, the peripheral edge of the cover body 26 is pushed upward to be hooked on the hook c of the support tube 18. The locking hook 29 is released, and the cover body 26 is pulled up above the opening end e of the protection tube 17, whereby the ultraviolet lamp 11 is removed from the protection tube 17 via the lead wire 11a. Thereafter, the lead wire 11a of the old ultraviolet lamp 11 is removed from the rubber bush 27, and the lead wire of the ultraviolet lamp to be replaced next is inserted. Subsequently, a new ultraviolet lamp 11 is inserted into the protective tube 17 and the cover body 26 is again inserted.
Is attached to the disinfecting device 12 by hooking the locking hook 29 on the hooking portion c of the support tube 18 to close the opening end e of the protective tube 17. Then, the ultraviolet lamp 11 is turned on again by connecting the connection terminal of the lead wire 11a to an energizing circuit.

When the ultraviolet lamp 11 is replaced, only the power supply to the ultraviolet lamp 11 can be stopped and the power supply to the circulation pump P and the electric heater 9 can be continued. The ultraviolet lamp 11 can be replaced without impairing the circulation purification (filtration) function. This is because the protective tube 17 is configured to play and fix to the cylindrical container 15 via the sealing means 22. When the bath water detecting means 28 is to be attached to or detached from the cover body 26 at the time of replacement or the like, the bath water detecting means 28 can be easily attached to the cover body 26 by pressing the hook 30 outward to release the lock. Can be attached and detached, and the replacement operation can be easily performed.

Next, a scale or the like adheres to the protective tube 17 for accommodating the ultraviolet lamp 11 so that the ultraviolet lamp 11
When the illuminance is decreased, the sealing means 22 is released, the protective tube 17 is removed from the cylindrical container 15, and the protective tube 17 is cleaned. That is, after temporarily stopping the operation of the circulation pump P, the fastening fitting 2
3, the free ends g, g are pushed outwardly while the free ends g, g are pushed outward to the right side in FIG. Remove from 22. As a result, the support ring 16 and the support cylinder 18 of the cylindrical container 15 are
2 is released, so that the support cylinder 18 is
When the tube 6 is pulled upward with the peripheral edge of the tube 6, the tube is removed from the support ring 16 and the protective tube 17 can be easily removed from the cylindrical container 15 with its open end e sealed by the cover 26. The protective tube 17 taken out of the cylindrical container 15 is washed with water using a cloth or the like to remove (clean) foreign substances such as scalp which lower the irradiation sensitivity of the ultraviolet lamp 11. In this case, since the circulation pump P is stopped, the bath water does not overflow from the upper opening of the cylindrical container 15. Further, when the protective tube 17 is washed with water, the upper opening end e is closed by the cover body 26, so that the washing water does not enter the protective tube 17. As a result, the protection tube 17 can be cleaned while the ultraviolet lamp 11 is energized, which is convenient.

Further, in the above-mentioned state, when the protection tube 17 is to be replaced with a very dirty one, the support tube 18 is replaced with a new one.
Since the pressing of the rubber packing 19 against the protective tube 17 can be released by removing the fastening nut 21 screwed to the protective tube 17, the protective tube 17 can be easily removed from the support tube 18. After the contaminated protective tube 17 is removed, the upper side of the new protective tube 17 is inserted into the support tube 18, and the rubber packing 19 and the slip ring 20 are again inserted from the outside of the protective tube 17 respectively. The protection tube 17 is fitted into the inclined surface a of the inside of the support tube 18 and screwed into the support tube 18 with a fastening nut 21 to press and urge the protection tube 17.
Fixed to.

After the protective tube 17 has been cleaned or replaced with a new one as described above, the protective tube 17 is loosely fitted into the cylindrical container 15 to support the locking step 18a of the support tube 18. It is engaged with the flange edge 16a of the ring 16, and in this state, the fastener 2
3 is fixed to the outer peripheral surfaces of the support ring 16 and the support cylinder 18 to fix the two members. That is, the sealing means 22 is fixed again to reuse the sterilization apparatus 12.

[0027]

As described above, according to the present invention, a bottomed tubular protective tube containing an ultraviolet lamp is fitted in a tubular container connected to the circulation path of bath water by piping. A space between the upper opening end and the upper opening of the cylindrical container is provided with a supporting ring connected to the cylindrical container side, and a lower portion of the supporting ring is inserted through a sealing material to form a V inside the body. A support cylinder having a U-shaped rubber packing built therein, and a tightening screw for screwing the upper part of the support cylinder to press and urge the rubber packing toward the protection tube to fix the protection tube to the support tube. The sterilizing device is configured to be closed in a water-tight manner by using a sealing means constituted by an attached nut, and the protective tube can be attached to the cylindrical container by hanging the protective tube with the sealing means. The apparatus is convenient because it can be assembled and disassembled in almost one operation by using the sealing means.

Further, when replacing the ultraviolet lamp, since the protective tube is formed in a cylindrical shape with a bottom and is supported and fixed to the cylindrical container by a sealing means, the pump for circulating bath water can be stopped without stopping. Chi interrupt the energization of the ultraviolet lamp, and the
Unlocking the cover body that is hung on the sealing means
The replacement of the ultraviolet lamp is easy and easy without changing the bath water circulation.
It can be done quickly and safely . In addition, the cover body
Supports the lead wire of the ultraviolet lamp through the rubber bush
To be led out, that is, above the protective tube
Attached to the sealing means with the open end closed
Therefore, leakage of ultraviolet rays can be avoided well, and
More insulation for resin piping, circulation pumps and temperature sensors
The problem of adverse effects can be solved
You.

Further, when the protective tube is contaminated by the scale, etc., only the circulating pump is stopped and then the sealing means is disassembled, so that the protective tube can be taken out with the ultraviolet lamp stored therein. In addition, the protection tube can be easily cleaned, and when the protection tube is loosely inserted into the cylindrical container after the cleaning, the protection tube is formed in a bottomed cylindrical shape , and the protection tube is removed.
A sealing means consisting of a support ring and a support cylinder is provided outside the upper open end.
Since it is physically attached, it is possible to play and assemble it in a state filled with bath water in the cylindrical container, so that the protective tube is used not only at the time of assembling the sterilizer but also at the time of maintenance. <br/> reassemble a faster easily Hakare convenience reuse.

In addition, the support ring and the support cylinder which constitute the sealing means can be supported and fixed with one touch by means of a C-shaped elastic fitting having both members.
Since the disinfection device can be disassembled and assembled without any tools for disassembling the disinfection device, it can be easily maintained even in ordinary households, significantly increasing the running cost of the circulation bathtub device. Can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a bath water circulation type bathtub apparatus provided with a sterilization apparatus of the present invention.

FIG. 2 is a cross-sectional view showing a sterilizing apparatus of the present invention in a longitudinal section.

FIG. 3 is an exploded perspective view of the sterilizer.

FIG. 4 is a perspective view showing a mounting state of a fastener.

FIG. 5 is a plan view showing a mounting state of the fastener.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bathtub 2 Bath circulation device 7 Bath circulation circuit 11 Ultraviolet lamp 12 Sterilizer 15 Cylindrical container 16 Support ring 17 Protective tube 18 Support cylinder 19 Rubber packing 21 Tightening nut 22 Sealing means 23 Fastening fitting 24 Notch hole 26 Cover Body e open end

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Tatsuo Sugimoto 1 Aichi-cho, Kasugai-shi, Aichi Prefecture Aichi Electric Co., Ltd. (72) Inventor Hirohito Yasuda 1 Aichi-cho, Kasugai-shi, Aichi Aichi Electric Co., Ltd. (72 Inventor Hidekazu Mori 1-Aichi-cho, Kasugai-shi, Aichi Pref. Aichi Electric Co., Ltd. Examiner Ryoko Masuda (56) References JP-A-60-87889 (JP, A) JP-A-5-22090 (JP, U) Kaihei 2-129297 (JP, U) Real Kaihei 1-75611 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) C02F 1/32

Claims (3)

(57) [Claims] 1. A bottomed tubular protective tube excellent in transmission of ultraviolet rays.
Insert a UV lamp into the
Loosely fits in a cylindrical container connected to the pipe,
Between the outer periphery of the open end of the container and the upper opening of the cylindrical container
Sealing via a step and the sealing means
The tool is integrally fastened and fixed to the cylindrical container with the
The tube is suspended in a cylindrical container, and
A cover for opening and closing the opening end on the opening end
The body is detachably attached to the sealing means.
Sterilizer bath water characterized by. 2. The sealing means includes a support ring fixed to an inner peripheral edge of an upper opening of the cylindrical container, and a lower portion protected by the support ring.
Insert through the sealing member between the outside of the upper open end of the pipe
And a support cylinder with a screw hole on the inside
Screwed into the support hole and outside the upper open end of the protective tube
Press the rubber packing interposed between
Seal the protective tube at the upper opening of the cylindrical container
With a tightening nut that is held
So that the support ring of the step and the support cylinder are clamped and supported by the clamp.
Sterilizer bath water according to claim 1, characterized in that the. 3. The cover body is a lead of an ultraviolet lamp.
A rubber bush for inserting and supporting a wire is provided inside to seal
So that it can be freely attached and detached to the support cylinder that constitutes
The bath water sterilizing device according to claim 1, wherein the bath water is sterilized.