JPH0633025Y2 - Deodorizing device for toilet bowl - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a deodorizing device for a toilet that uses ozone to deodorize. Specifically, it is possible to reliably guide odor component gas into the deodorizing device for deodorizing treatment. The present invention relates to a deodorizing device for a toilet bowl configured as described in 1.

[Prior Art] FIG. 5 is a schematic explanatory view of a deodorizing device utilizing ozone. An air flow passage 3 is provided in a case 2 formed of a conductive material such as iron, copper, or aluminum, or a material obtained by lining a synthetic resin material on the material, and an upstream end of the air flow passage 3 and An intake port 13 and an exhaust port 14 are formed at the downstream end. The inner wall surface forming the ventilation passage 3 is made of a material having high ozone resistance, such as vinyl chloride resin, aluminum or stainless steel. A filter 4 and an ozone generator 5 are sequentially arranged on the intake side of the air flow passage 3 along the air flow direction,
The outside air sucked from the intake port 13 by the operation of the intake fan 9 provided on the downstream side of the air flow passage 3 is filtered by the filter 4
After the dust and particles in the sucked air are captured by the air, the mixed air of the malodorous component gas is introduced toward the ozone generator 5. The ozone generator 5 is connected to the transformer 6,
A high frequency and a high voltage are applied to the plate-shaped ceramics provided as the ozone generator 5 by the transformer 6, and ozone is formed in the discharge atmosphere. On the downstream side of the ozone generator 5, an ozone / malt component mixing chamber 7 and a catalyst layer 8 for ozone decomposition and deodorization reaction are provided, and after mixing the malodor component gas and ozone in the mixing chamber 7, The mixed gas is guided to the catalyst layer 8 to oxidize and decompose the malodorous component gas to deodorize, and the decomposition reaction is performed so that the unreacted ozone does not leak to the outside air as it is. Then, the clean air after deodorization and unreacted ozone decomposition is discharged to the outside air side through the intake fan 9.

The catalyst used in the catalyst layer 8 has a carrier carrying a predetermined metal or metal oxide. This metal or metal oxide includes manganese, iron, nickel,
Cobalt, silver, platinum, palladium, rhodium, chromium,
Examples thereof include molybdenum, lead, tungsten, copper, vanadium, etc., which may be used alone or in combination. Examples of the carrier include alumina, silica, alumina-silica, bentonite, diatomaceous earth, silicon carbide, titania, zirconia, magnesia, cordierite, mullite, activated carbon, and the like, and more preferably a binary composite oxide composed of titanium-silicon. , A binary complex oxide composed of titanium-zirconia and a ternary complex oxide composed of titanium-silicon-zirconia. As the catalyst shape, honeycomb shape, granular shape, columnar shape and other various shapes are applied.

[Problems to be Solved by the Invention] Since the deodorizing device 1 exhibits an excellent deodorizing action, it may be considered to install it in a toilet. However, in the conventional deodorizing device 1, since the intake port 13 is formed on the outer surface of the case 2, the structure is such that the outside air is collected from a wide range. If anything, the air in the entire room is evenly sucked. The idea was to dilute the malodorous gas components in the room. That is, this idea is to continuously deodorize a malodorous component gas in a room where it is continuously generated. Therefore, if we try to deodorize the inside of the toilet as an extension of this idea, we will adopt the method of deodorizing the air of the whole room called the toilet, and the odorous component gas is intermittent and intensive like the flush toilet. However, there is a problem that it is not suitable for deodorization in cases where deodorization at the time of occurrence is an important issue.

Therefore, the inventors of the present invention have recognized that it is necessary to provide a deodorizing device for a toilet bowl capable of intensively sucking the malodorous component gas emitted from the malodorous source to perform deodorizing treatment, and as a result of various efforts, Completed the present invention.

[Means for Solving the Problems] In the present invention, which has achieved the above object, an air flow passage is formed in a case, and an ozone generator and ozone / malodorous components are provided from the upstream side to the downstream side of the air flow passage. In a deodorizing device provided with a mixing chamber, a catalyst layer for deodorizing and decomposing unreacted ozone, and an intake fan in the order described, an air introducing pipe is integrally or detachably attached to an upstream side of an air flow passage of a case. In addition, the decomposition catalyst layer is composed of alumina, silica, alumina-silica, bentonite, diatomaceous earth, silicon carbide, titania, zirconia, magnesia, cordierite, mullite, a binary composite oxide composed of titanium-silicon, and titanium-zirconia. M as a carrier of any one of a binary complex oxide composed of, a ternary complex oxide composed of titanium-silicon-zirconia, and activated carbon. n, F
e, Ni, Co, Ag, Pt, Pd, Rh, Cr, M
The gist is that the metal or metal oxide of any one of o, Pb, W, Cu, and V is carried.

[Operation and Embodiment] FIG. 1 is a partially cutaway side view showing a typical embodiment of the present invention, and FIG. 2 is a perspective explanatory view showing a state in which the toilet deodorizing device of FIG. 1 is attached.

The deodorizing device 1 is attached to a proper position on the outer edge 10a of the Western-style toilet 10. A hook-shaped air introducing pipe 21 is provided on the upper part of the deodorizing device 1. The air introducing pipe 21 is formed in a hollow shape and is bent so as to be hooked on the toilet bowl 10. That is, the opening 21a on the one end side of the air introducing pipe 21 has the toilet 1
The other end side 21b is in communication with the air flow passage 3 of the deodorizing device. The air introduction pipe 21 is detachably attached to the case 2 by a snap mechanism or the like, and can be easily removed and attached for removing / cleaning adhered dirt. As the detachable mechanism, in addition to the snap mechanism described above, a known mechanism such as a screw or a pin, or a locking mechanism using a clamp-shaped hook or the like can be used, and the detaching point is not limited to the illustrated example. For example, the alternate long and short dash line position A in FIG. 1 can be freely changed. The present invention is not limited to the detachable type as described above, and the case 2 and the air introduction pipe 21 may be integrally formed.

Elastic members 26 are provided on three sides inside the recess of the air introducing pipe 21 so that they can be firmly fitted and attached to the outer peripheral edge 10a of the toilet. Also, the hook-shaped air introduction tube 2
When it is considered that the deodorizing device 1 is positioned only by locking the deodorizing device 1, the holding member 25 or the like having suction cups formed at both ends so as to bridge the outer surface 10b of the toilet bowl and the case 2 as shown in FIG. May be used. In this case, deodorizing device 1
If the device itself is formed into a shape that is bent or curved in the longitudinal direction, the entire deodorizing device 1 can be arranged along the bent or curved surface of the outer surface 10b of the toilet bowl, so that it does not spoil the appearance and is used. There will be no troubles such as people's clothes being caught. In addition, a Western-style toilet seat may be attached to a Japanese-style toilet to make a simple Western-style toilet, but the vertical wall of the Western-style toilet base used at this time is generally close to vertical, so when installing on such a thing No bending is necessary.

On the other hand, the catalyst performance of the catalyst layer 8 inevitably deteriorates as the usage time increases. And it is desirable to replace it at regular intervals. In order to easily carry out this exchange, it is recommended that a part of the wall surface of the case 2 corresponding to the position where the catalyst layer 8 is arranged is provided with an openable / closable lid 24. In order to detect the performance deterioration of the catalyst layer 8, the fan 9
It is also possible to dispose an ozone detection sensor in the vicinity of the disposition position and detect the catalyst replacement time based on the detected amount of undecomposed ozone.

Since the above-mentioned deodorizing device 1 is generally attached to a flush toilet, it does not need to be operated at all times and may be operated only when a person sits down. Therefore automatic ON /
It is also within the technical scope of the present invention to provide a detection sensor 27 for detecting light, temperature, ultrasonic waves or the like inside or outside the case 2 of the deodorizing device 1 as an OFF control mechanism.

FIG. 3 is a plan view showing another embodiment of the present invention.
FIG. 4 is a sectional view showing still another embodiment, for example, both of which are application examples in the Japanese style toilet 11. In FIG. 3, the deodorizing device 1 is installed on the floor surface, and the device 1 is connected to the outer edge 11a of the toilet bowl.
An air introduction pipe 21 is provided over the entire length. The air introduction pipe 2
The tip end opening 21a of No. 1 is disposed toward the inside of the toilet bowl, and is configured so that the malodorous component gas mixed air can be effectively sucked.
The cross-sectional shape and length of the air introduction pipe 21 are not limited at all, but if the pipe length becomes too long or the pipe lines are too pinched, the pressure loss of the circulating air will increase and the deodorizing apparatus 1 will be prevented. The capacity of the suction device provided must be increased. In any of the above examples, in view of the fact that the toilet bowl is often used for both urine and urine, it is also possible to attach a detachable or disposable cover as a means for preventing urine and other splashes from splashing. [Effects of the device] This device can effectively guide the malodor in the toilet bowl to the deodorizing device for deodorizing treatment, and plays a major role in improving the environment of the toilet.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing a typical embodiment of the present invention, FIG. 2 is a perspective view showing a state in which the deodorizing device shown in FIG. 1 is attached, and FIG. 3 is another view of the present invention. FIG. 4 is a plan view showing an embodiment, FIG. 4 is a side sectional view showing another embodiment of the present invention, and FIG. 5 is a schematic explanatory view showing a deodorizing device. 1 ... Deodorizing device, 2 ... Case, 3 ... Air flow passage, 4 ... Filter, 5 ... Ozone generator, 6 ... Transformer, 6a ... Power cord, 7 ... Ozone and malodorous component mixing chamber, 8 ... Catalyst Layer, 9 ... Intake fan 10 ... Western toilet, 11 ... Japanese toilet 13 ... Intake port, 14 ... Exhaust port 21 ... Air inlet pipe, 22 ... Snap projection 23 ... Snap recess, 24 ... … Openable lid 25 …… Holding member, 26 …… Elastic member 27 …… Detection sensor

Continuation of front page (56) References JP-A-60-31719 (JP, A) JP-A-55-78737 (JP, A)

Claims (3)

[Scope of utility model registration request] 1. An air flow passage is formed in a case, and an ozone generator, an ozone / odor component mixing chamber, a deodorizing catalyst layer for decomposing and unreacted ozone are disposed from the upstream side to the downstream side of the air flow passage. In the deodorizing device provided with an intake fan in the order described, an air introduction pipe is integrally or detachably attached to the upstream side of the air flow passage of the case, and the decomposition catalyst layer is made of alumina, silica, Alumina-silica, bentonite, diatomaceous earth, silicon carbide, titania, zirconia, magnesia, cordierite, mullite, binary composite oxide composed of titanium-silicon, binary composite oxide composed of titanium-zirconia, titanium-silicon- Either Mn, Fe, Ni, Co, or A can be used as a carrier of either ternary complex oxide composed of zirconia or activated carbon
g, Pt, Pd, Rh, Cr, Mo, Pb, W, Cu,
A deodorizing device for a toilet, comprising a metal or a metal oxide of V. 2. The deodorizing device for a toilet according to claim 1, wherein the air introduction pipe is formed in a hook shape so that it can be engaged with the edge of the toilet. 3. The toilet bowl according to claim 1, wherein a holding member is provided outside the case for contacting an outer surface of the toilet bowl and holding the posture of the case. Deodorizing device.