An air diffusion device is provided. The device includes a base coupled to an air supply pipe for supply of air. The base has an air discharge hole for discharge of air supplied from the air supply pipe. The device further includes a perforated cover in the form of a multi-layered stepped plate the
An air diffusion device is provided. The device includes a base coupled to an air supply pipe for supply of air. The base has an air discharge hole for discharge of air supplied from the air supply pipe. The device further includes a perforated cover in the form of a multi-layered stepped plate the height of which is reduced stepwise from the center to the edge. The perforated cover has a plurality of through-holes for discharge of air, and it is coupled to an upper surface of the base to cover the air discharge hole, thus defining an air guide chamber between the perforated cover and the base. The device further includes a securing mechanism configured to secure the perforated cover to the base.
대표청구항▼
1. An air diffusion device comprising: a base coupled to an air supply pipe for supply of air, the base having an air discharge hole for discharge of air supplied from the air supply pipe;a perforated cover in the form of a multi-layered stepped plate, the height of which is reduced stepwise from th
1. An air diffusion device comprising: a base coupled to an air supply pipe for supply of air, the base having an air discharge hole for discharge of air supplied from the air supply pipe;a perforated cover in the form of a multi-layered stepped plate, the height of which is reduced stepwise from the center to the edge, the perforated cover having a plurality of through-holes for discharge of air, the perforated cover being coupled to an upper surface of the base to cover the air discharge hole, thus defining an air guide chamber between the perforated cover and the base; anda securing mechanism configured to secure the perforated cover to the base,wherein the base is provided at an upper edge thereof with a cover bonding portion coming into close contact with the perforated cover, and the perforated cover is provided at a lower edge thereof with a base bonding portion coming into close contact with the cover bonding portion, andwherein the securing mechanism includes a securing ring coupled to the upper edge of the base to cover both the upper edge of the base and the lower edge of the perforated cover, and a cover pressure portion protruding downward from the securing ring to push the lower edge of the perforated cover to the upper edge of the base. 2. The device according to claim 1, further comprising an air guide mechanism fitted into an air supply port of the base and placed in the air guide chamber, wherein the air guide mechanism includes an air guide pipe having a head provided with the air discharge hole, from which air, supplied through the air supply port, is discharged into the air guide chamber, and a diaphragm cover engaged with the head and coming into close contact with an upper surface of the head to cover the air discharge hole, andwherein at least one of the head and the diaphragm cover has an air guide hole, through which air, discharged from the air discharge hole, is directed into the air guide chamber when the diaphragm cover is elastically deformed to thereby be spaced apart from the head upon receiving pressure of the air discharged from the air discharge hole. 3. The device according to claim 2, wherein a plug is formed at a lower surface of the diaphragm cover to protrude to the air discharge hole, the plug being inserted into the air discharge hole to close the air discharge hole when air is not supplied, thereby preventing backflow of fluid through the air discharge hole and consequently preventing wastewater and impurities from entering the air supply pipe. 4. The device according to claim 2, wherein the air guide pipe is fastened to the air supply port via screwing, and wherein the air guide hole is perforated in the head and is tilted in a direction opposite to a direction in which the air guide pipe is turned for screwing insertion into the air supply port, such that air is discharged through the air discharge hole in a direction opposite to the direction in which the air guide pipe is turned for screwing insertion into the air supply port, thereby applying force to the air guide pipe in a tightening direction thereof. 5. The device according to claim 1, further comprising an impurity removal mechanism coupled to the base to discharge impurities, introduced into the air guide chamber, to the outside of the air guide chamber, wherein the impurity removal mechanism includes:an impurity guide pipe coupled to the base, the impurity guide pipe having an impurity inlet for introduction of impurities of the air guide chamber and an impurity outlet for outward discharge of the impurities;a seat located in the impurity guide pipe at a position between the impurity inlet and the impurity outlet, the seat having an orifice connecting the impurity inlet and the impurity outlet to each other;an opening/closing member movably installed between the seat and the impurity outlet to open or close the orifice; anda spring installed in the impurity guide tube to apply elastic force to the opening/closing member to allow the opening/closing member to come into close contact with the seat,wherein, when pressure of the air guide chamber increases due to introduction of impurities to thereby become greater than the elastic force of the spring, the opening/closing member pushes the spring and is spaced apart from the seat, thereby opening the orifice. 6. The device according to claim 5, wherein the impurity removal mechanism further includes a spring support structure movably inserted in the impurity guide pipe to support the spring by coming into contact with a distal end of the spring, and wherein the spring support structure is fastened to the impurity guide pipe via screwing, so as to be adjustable in position by a user. 7. The device according to claim 6, wherein the spring support structure includes a spring support member movably installed in the impurity guide pipe to come into contact with the distal end of the spring, and an adjustor knob coupled to the spring support member so as to protrude outward of the impurity guide pipe, and wherein the impurity removal mechanism further includes a spring support structure fixing member coupled to the impurity guide pipe to fix the adjustor knob. 8. The device according to claim 5, wherein the impurity outlet is provided at a lateral side of the impurity guide tube below the seat, such that the impurity inlet and the impurity outlet are connected to each other when the opening/closing member is moved to a position lower than the impurity outlet while compressing the spring. 9. The device according to claim 5, wherein the opening/closing member has a passage to allow impurities having passed through the orifice to move to the impurity outlet, and wherein the passage is closed and hermetically sealed by the seat when the opening/closing member comes into close contact with the seat, and is open when the opening/closing member is spaced apart from the seat to allow the impurities having passed through the orifice to move to the impurity outlet. 10. The device according to claim 5, wherein the base is reduced in width and height from the edge to the center thereof to gather introduced impurities at the center of the base, and the impurity removal mechanism is installed near the center of the base. 11. The device according to claim 1, wherein the through-holes are arranged at different distances increasing from the edge to the center of the perforated cover. 12. The device according to claim 1, wherein the through-holes are tapered with gradually reducing size from an inner surface to an outer surface of the perforated cover. 13. The device according to claim 1, wherein the perforated cover includes a non-perforated portion having no through-hole, and the non-perforated portion extends from the edge to the center of the perforated cover. 14. The device according to claim 1, wherein a plurality of securing projections protrudes outward from an outer periphery of the base, and a plurality of pressure members is provided at an inner periphery of the securing ring, the pressure members being pressed by the securing projections. 15. The device according to claim 1, wherein any one of each securing projections and each pressure member is provided with a coupling recess, and the other one is provided with a coupling bump configured to be inserted into the coupling recess. 16. The device according to claim 1, wherein the base is provided at an outer periphery thereof with male screw threads, and the securing ring is provided at an inner periphery thereof with female screw threads corresponding to the male screw threads of the base. 17. The device according to claim 1, further comprising a sealing member interposed between the cover bonding portion and the base bonding portion. 18. The device according to claim 1, further comprising a sealing member interposed between the perforated cover and the securing mechanism.
Edwards ; deceased Richard N. (late of Raleigh NC by Katherine E. Edwards ; co-executor) Edwards ; Jr. ; co-executor by Richard N. (Charlotte NC), Gas diffuser tube assembly.
Ewing Lloyd (Bayside WI) Redmon David T. (Racine WI) Thayer Paul M. (Milwaukee WI) Schmit Frank L. (Port Washington WI) Roche William H. (Mequon WI), Sewage aeration system.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.