阅读说明：本技术 一种多用途臭氧消毒机 (Multipurpose ozone sterilizer ) 是由 钱帅闻 张玉其 钱留忠 于 2020-12-25 设计创作，主要内容包括：本发明公开了一种多用途臭氧消毒机,包括臭氧发生器、循环风机、消毒箱、进气管、出气管、回流管、第一三通阀和第二三通阀,第一三通阀的公用口连接臭氧发生器,第一三通阀剩余两个接口分别连接进气管和回流管,第二三通阀的公用口连接至消毒箱的排气口,第二三通阀剩余两个接口分别连接出气管和回流管,循环风机设置在臭氧发生器和消毒箱进气口之间。消毒机还包括分流富集组件,分流富集组件包括滤气组件、主路管、支路管,主路管连接在消毒箱进出气口上,支路管以旁通支路形式连接循环风机出气口和第二三通阀的公用口,滤气组件设置在主路管上并位于消毒箱进口之前,滤气组件包括水网和保持架,保持架为水网提供形态支持。(The invention discloses a multipurpose ozone disinfection machine which comprises an ozone generator, a circulating fan, a disinfection box, an air inlet pipe, an air outlet pipe, a return pipe, a first three-way valve and a second three-way valve, wherein a common port of the first three-way valve is connected with the ozone generator, the rest two ports of the first three-way valve are respectively connected with the air inlet pipe and the return pipe, a common port of the second three-way valve is connected with an air outlet of the disinfection box, the rest two ports of the second three-way valve are respectively connected with the air outlet pipe and the return pipe, and the circulating fan is arranged between. The sterilizer also comprises a shunting enrichment assembly, the shunting enrichment assembly comprises an air filtering assembly, a main pipeline and a branch pipeline, the main pipeline is connected to an air inlet and an air outlet of the sterilization box, the branch pipeline is connected with a gas outlet of the circulating fan and a public port of the second three-way valve in a bypass branch way mode, the air filtering assembly is arranged on the main pipeline and is positioned in front of an inlet of the sterilization box, the air filtering assembly comprises a water net and a retainer, and the retainer provides form support for the water net.)

1. A multipurpose ozone disinfection machine is characterized in that: the sterilizing machine comprises an ozone generator (1), a circulating fan (2), a sterilizing box (4), an air inlet pipe (51), an air outlet pipe (52), a return pipe (53), a first three-way valve (54) and a second three-way valve (55), wherein a public port of the first three-way valve (54) is connected with the ozone generator (1), the rest two interfaces of the first three-way valve (54) are respectively connected with the air inlet pipe (51) and the return pipe (53), the public port of the second three-way valve (55) is connected to an air outlet of the sterilizing box (4), the rest two interfaces of the second three-way valve (55) are respectively connected with the air outlet pipe (52) and the return pipe (53), and the circulating fan (2) is arranged between the air inlets of the ozone generator (.

2. A multi-purpose ozone sterilizer as set forth in claim 1, wherein: the sterilizer also comprises a flow dividing and enriching assembly (3), the flow dividing and enriching assembly (3) comprises a gas filtering assembly (31), a main path pipe (321) and a branch path pipe (322), the main path pipe (321) is connected to the gas inlet and outlet of the sterilizing box (4), the branch path pipe (322) is connected with a gas outlet of the circulating fan (2) and a public port of the second three-way valve (55) in a bypass branch path mode, the gas filtering assembly (31) is arranged on the main path pipe (321) and is positioned in front of the inlet of the sterilizing box (4), the gas filtering assembly (3) comprises a water network (311) and a retainer (312), and the retainer (312) provides shape support for the water network (311).

3. A multi-purpose ozone sterilizer as set forth in claim 2, wherein: the air filtering component (31) further comprises a water replenishing tank (313), the side face of the water net (311) is connected with a cotton core with a sheath, and the other end of the cotton core is inserted into the water replenishing tank (313).

4. A multi-purpose ozone sterilizer as set forth in claim 2, wherein: disinfect box (4) include box (41), supporter (42) and article cover (43), supporter (42) set up on box (41) inner wall, and supporter (42) are used for placing the article of treating the disinfection, box (41) are left gas and are imported and exported and connect main road pipe (321), article cover (43) cover the article of treating the disinfection, and article cover (43) are the silk screen form, and article cover (43) are moist.

5. A multi-purpose ozone sterilizer as set forth in claim 4, wherein: the sterilizing machine further comprises a breathing component (6), an electromagnetic valve is arranged at the position of an air inlet and outlet port of the sterilizing box (4) connected with the main pipeline (321), the breathing component (6) is connected to the side wall of the sterilizing box (4), the air inlet and outlet port of the sterilizing box (4) connected with the main pipeline (321) is closed through the electromagnetic valve, and the breathing component (6) produces periodic fluctuation positive and negative pressure in the sterilizing box (4).

6. A multi-purpose ozone sterilizer as set forth in claim 5, wherein: breathe subassembly (6) including compressor (61), transfer case (62) and switching-over pipeline (63), transfer case (62) set up on one side of box (41), switching-over pipeline (63) are connected compressor (61), transfer case (62) and box (41) respectively, and switching-over pipeline (63) realize the switching-over through four branches, four solenoid valves, make the negative pressure in box (41) when compressor (61) are sent to transfer case (62) with gas in by box (41), make the malleation in box (41) when compressor (61) are sent to box (41) with gas in by transfer case (62).

7. A multi-purpose ozone sterilizer as set forth in claim 4, wherein: the article sleeve (43) is made of polytetrafluoroethylene. The polytetrafluoroethylene material is acid and alkali resistant and corrosion resistant, and can bear the oxidability of ozone.

8. A multi-purpose ozone sterilizer as set forth in claim 4, wherein: the article cover (43) is roughened.

9. A multi-purpose ozone sterilizer as set forth in claim 3, wherein: the air outlet pipe (52) is provided with a supercharger, the outlet of the supercharger is provided with a drain valve, and the drain valve drains water to the water replenishing tank (313).

Technical Field

The invention relates to the technical field of disinfection equipment, in particular to a multipurpose ozone disinfection machine.

Background

Ozone disinfection is a disinfection mode with a certain use history, has thorough disinfection, fast action and good universality to bacteria, can be quickly decomposed without residue after disinfection, and is widely used in the occasions of medical sanitation, food disinfection, clothing disinfection and the like.

In the prior art, an ozone disinfection machine only provides a closed space for objects to be disinfected, then ozone is produced from air by the ozone production machine and then is introduced into a disinfection box for disinfection, the concentration of the ozone is limited, dead angles exist in some objects such as clothes and the like, and the gas at the positions is not easy to circulate, so that the ozone concentration is reduced quickly in the disinfection process, and sufficient ozone is difficult to disinfect at the positions of the corners.

Disclosure of Invention

The present invention is directed to a multi-purpose ozone sterilizer, which solves the above problems.

In order to solve the technical problems, the invention provides the following technical scheme:

a multipurpose ozone disinfection machine comprises an ozone generator, a circulating fan, a disinfection box, an air inlet pipe, an air outlet pipe, a backflow pipe, a first three-way valve and a second three-way valve, wherein a public port of the first three-way valve is connected with the ozone generator, the rest two interfaces of the first three-way valve are respectively connected with the air inlet pipe and the backflow pipe, a public port of the second three-way valve is connected to an air outlet of the disinfection box, the rest two interfaces of the second three-way valve are respectively connected with the air outlet pipe and the backflow pipe, and the circulating fan is arranged between.

Fresh air enters the ozone generator through the air inlet pipe, the ozone generator converts part of oxygen in the air into ozone, the ozone is guided by the circulating fan to reach the disinfection box, the ozone concentration is low under the action of the single ozone generator, at the moment, gas exhausted from the disinfection box is not exhausted to the air outlet pipe at the second three-way valve, but returns to the ozone generator through the return pipe, the first three-way valve and the second three-way valve are connected to the air inlet pipe and the air outlet pipe only when the disinfection box needs to integrally replace the gas, the first three-way valve and the second three-way valve are connected to the return pipe to enable the air to circularly flow during operation of the ozone generator, pollution and waste caused by leakage of the produced ozone are prevented, after the ozone generator is repeatedly circulated, the proportion of the ozone in the gas is.

Furthermore, the sterilizer also comprises a diversion enrichment assembly, the diversion enrichment assembly comprises an air filtering assembly, a main pipeline and a branch pipeline, the main pipeline is connected to an air inlet and an air outlet of the sterilization box, the branch pipeline is connected with an air outlet of the circulating fan and a public port of the second three-way valve in a bypass branch way mode, the air filtering assembly is arranged on the main pipeline and is positioned in front of an inlet of the sterilization box, the air filtering assembly comprises a water net and a retainer, and the retainer provides form support for the water net. The water net is, for example, a wetted gauze or the like, and the gas entering the disinfection box from the main path pipe needs to pass through the water net, so that the water net can play a certain role in filtering air components, because the solubility of ozone in water is far greater than that of oxygen and nitrogen, ozone can be continuously dissolved when the ozone absorbed by the water on the water net does not reach the maximum solubility, and after the maximum solubility is reached and the dissolution balance is established, the ozone is continuously volatilized and dissolved on two sides of the water net, namely, the resistance of ozone passing through the water is smaller because of the larger solubility, and the resistance of oxygen and nitrogen passing through the water is larger because of the smaller solubility, so that the nitrogen and oxygen can only pass through the smaller meshes which are not covered by the water on the water net, the nitrogen and oxygen are divided into one group, the ozone is used as the other group, and the passing resistance at the water net is different, therefore, more components of ozone enter the disinfection box, and more components of oxygen and nitrogen which have no disinfection effect flow back to the ozone generator through the branch pipe to generate ozone, so that the concentration of the ozone in the disinfection box is further improved, and the disinfection effect is improved.

Furthermore, the air filtering component also comprises a water replenishing tank, the side surface of the water net is connected with a cotton core with a sheath, and the other end of the cotton core is inserted into the water replenishing tank. The water replenishing tank is connected with the water net, the water net is kept in a wet state through cotton core siphon water, water is periodically replenished in the water replenishing tank, and the water net is kept in the wet state in a siphon water replenishing mode instead of dripping water.

Further, the disinfection box includes box, supporter and article cover, and the supporter setting is on the box inner wall, and the supporter is used for placing the article of treating disinfecting, and the box reserves gaseous exit and connects the main road pipe, and the article cover covers the article of treating disinfecting, and the article cover is the silk screen form, and the article cover is moist. After the article to be disinfected is placed in the disinfection box, the covered wetted article sleeve can enrich ozone molecules on the surface of the article, wetted moisture on the article sleeve is contacted with the surface of the article after ozone is dissolved, compared with the case that the ozone molecules are contacted with the surface of the article in a gas form, the contact density of the ozone molecules dissolved in water is higher, ionization effect in water is more obvious, the oxidation capacity of ozone is stronger, therefore, the disinfection effect is obvious, the disinfection mode is a disinfection mode for the article with the wetted surface, if the article to be disinfected can not be contacted with more moisture, the wetted article sleeve is cancelled during disinfection, the ozone molecules in the disinfection box are enriched through a water film on the surface of the article, and the disinfection effect is greatly improved.

Further, the sterilizing machine still includes breathing the subassembly, and the business turn over gas port position department that sterilizing box and main road union coupling set up the solenoid valve, and breathing the subassembly and connect on the sterilizing box lateral wall, the back is closed through the solenoid valve to the business turn over gas port that sterilizing box and main road union coupling, and breathing the subassembly and make the undulant positive and negative pressure of cycle in the sterilizing box. The periodical positive and negative pressure is produced in the disinfection process in the disinfection box, the action area of the water-moistening membrane can be promoted, because only the article is coated on the article sleeve, the contact between the water on the article sleeve and the article is limited, the surface of the article is not fully moistened, the effect area for promoting the disinfection effect in the water membrane by dissolving ozone is limited, and after a part of ozone in the disinfection box is consumed on the surface of the article, the rest ozone molecules cannot go to the position near the surface of the article too actively, along with the disinfection, the concentration of the ozone molecules near the surface of the article is gradually reduced, the reduction rate of the concentration of the ozone molecules at the far position is lower than that at the position near the article, and after the respiratory component is added, the periodical positive and negative pressure in the disinfection box can evaporate and condense the article water membrane sleeve, and the continuous evaporation and condensation process is matched with the gas flow, can let the water film dissolve the ozone of maximum in whole disinfection process, ozone concentration reduction rate in the disinfect box is unanimous, in addition, the condensation process of water film, liquid water is the microcosmic pit condensation on object surface of priority, compare in liquid water direct flow moist article surface, build the steam environment and then let the water pressure boost condense make moist effect better, moisture spreads each corner formation water film of article, and the water molecule can fully contact with the ozone molecule again in the process before condensing, directly incorporate the ozone molecule during condensation, thereby the water droplet that every condenses out all contains ozone, do not have the problem that ozone is not enough, make each corner contact of ozone and article realize abundant disinfection.

Further, the breathing assembly comprises a compressor, a transfer box and a reversing pipeline, the transfer box is arranged beside the box, the reversing pipeline is respectively connected with the compressor, the transfer box and the box, the reversing pipeline realizes reversing through four branches and four electromagnetic valves, negative pressure is produced in the box when the compressor sends gas to the transfer box from the box, and positive pressure is produced in the box when the compressor sends gas to the box from the transfer box. The inlet and the outlet of the compressor are exchanged by two groups of four electromagnetic valves to realize the exchange of the direction of the blowing gas.

Furthermore, the article sleeve is made of polytetrafluoroethylene. The polytetrafluoroethylene material is acid and alkali resistant and corrosion resistant, and can bear the oxidability of ozone.

Further, the article cover is subjected to a roughening treatment. The silk-screen article sleeve with the rough surface can carry more moisture to wet the surface of the article.

Furthermore, the air outlet pipe is provided with a supercharger, the outlet of the supercharger is provided with a drain valve, and the drain valve drains water to the water replenishing tank. The water is recycled, and the times of manual water replenishing of the water replenishing tank are reduced.

Compared with the prior art, the invention has the following beneficial effects: according to the invention, air passes through the ozone generator for multiple times through the return pipe, ozone and oxygen and nitrogen are partially shunted through the shunt enrichment assembly, so that the concentration of ozone in the disinfection box is improved, the disinfection box with higher concentration forms a water film by sleeving an article on the surface of the article, ozone is contacted with the article in a moisture environment, the disinfection capacity is improved, the breathing assembly can enable the water film to fully reach each tiny corner of the article, and after the gas in the disinfection box flows, the concentration of the ozone is reduced uniformly after the ozone is consumed, so that the situation that no supplement is generated after the ozone near the surface of the article is consumed is prevented.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic of the basic structure of the present invention;

FIG. 2 is a schematic diagram of the present invention with a breathing assembly;

FIG. 3 is a schematic view of the connection of the air filter assembly and associated structure of the present invention;

FIG. 4 is a schematic diagram of the principle of the present invention of water net enrichment with ozone molecules;

FIG. 5 is a schematic view of the construction of the sterilization case of the present invention;

fig. 6 is a schematic diagram of the construction of the respiratory assembly of the present invention.

In the figure: the device comprises a 1-ozone generator, a 2-circulating fan, a 3-flow splitting and enriching component, a 31-air filtering component, a 311-water net, a 312 holding rack, a 313-water supplementing tank, a 321-main pipeline, a 322-branch pipeline, a 4-disinfection tank, a 41-tank body, a 42-storage rack, a 43-article sleeve, a 51-air inlet pipe, a 52-air outlet pipe, a 53-return pipe, a 54-first three-way valve, a 55-second three-way valve, a 6-breathing component, a 61-compressor, a 62-transfer tank and a 63-reversing pipeline.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides the following technical solutions:

a multipurpose ozone disinfection machine comprises an ozone generator 1, a circulating fan 2, a disinfection box 4, an air inlet pipe 51, an air outlet pipe 52, a return pipe 53, a first three-way valve 54 and a second three-way valve 55, wherein a public port of the first three-way valve 54 is connected with the ozone generator 1, the rest two interfaces of the first three-way valve 54 are respectively connected with the air inlet pipe 51 and the return pipe 53, a public port of the second three-way valve 55 is connected with an exhaust port of the disinfection box 4, the rest two interfaces of the second three-way valve 55 are respectively connected with the air outlet pipe 52 and the return pipe 53, and the circulating fan 2 is arranged between the air.

As shown in fig. 1, fresh air enters the ozone generator 1 through an air inlet pipe 51, after the ozone generator 51 converts part of oxygen in the air into ozone, is guided by the circulating fan 51 to reach the sterilizing box 4, the ozone concentration is lower under the action of the single ozone generator 1, at this time, the gas discharged from the sterilizing compartment 4 is not discharged to the outlet duct 52 at the second three-way valve 55, but is returned to the ozone generator 1 by the return line 53, the first three-way valve 54 and the second three-way valve 55 are connected to the inlet pipe 51 and the outlet pipe 52 only when the sterilizing chamber 4 needs to be entirely replaced with gas, when the ozone generator 1 works, the air is connected to the return pipe 53 to circulate the air, so that the produced ozone is prevented from leaking to cause pollution and waste, and after the ozone generator 1 is circulated for multiple times, the proportion of the ozone in the gas is increased, thereby being beneficial to the disinfection process in the disinfection box 4.

The sterilizer further comprises a diversion enrichment assembly 3, the diversion enrichment assembly 3 comprises an air filtering assembly 31, a main path pipe 321 and a branch path pipe 322, the main path pipe 321 is connected to an air inlet and an air outlet of the sterilizing box 4, the branch path pipe 322 is connected with a common port of an air outlet of the circulating fan 2 and the second three-way valve 55 in a bypass branch path mode, the air filtering assembly 31 is arranged on the main path pipe 321 and located in front of an inlet of the sterilizing box 4, the air filtering assembly 3 comprises a water net 311 and a retainer 312, and the retainer 312 provides form support for the water net 311. As shown in fig. 3 and 4, the water net 311 is, for example, a wet gauze, etc., and the air entering the sterilizing chamber 4 from the main pipe 321 needs to pass through the water net 311, so that the water net 311 can filter the air components to a certain extent, because the solubility of ozone in water is much higher than that of oxygen and nitrogen, ozone can be dissolved continuously when the ozone absorbed by the water on the water net 311 does not reach the maximum solubility, and after the maximum solubility is reached and the dissolution balance is established, ozone is volatilized and dissolved continuously on both sides of the water net 311, that is, the resistance of ozone to pass through water is smaller because of the larger solubility, and oxygen and nitrogen have larger resistance to pass through because of the smaller solubility, so that nitrogen and oxygen can only pass through the smaller mesh holes on the water net 311 which are not covered by water, and ozone and oxygen can be divided into one group and ozone can be used as another group, the resistance of passing through the water network 311 is different, so that more ozone enters the disinfection box, and more oxygen and nitrogen without disinfection effect flow back to the ozone generator 1 through the branch pipe 322 to generate ozone, further improving the ozone concentration in the disinfection box 1 and improving the disinfection effect.

The air filtering component 31 further comprises a water replenishing tank 313, the side surface of the water net 311 is connected with a cotton core with a sheath, and the other end of the cotton core is inserted into the water replenishing tank 313. The water replenishing tank 313 is connected with the water net 311, the water net 311 is kept in a wet state by siphoning water through the cotton core, water is periodically replenished into the water replenishing tank 313, and the water net 311 is kept in the wet state in a siphoning water replenishing mode without water dripping.

The disinfection box 4 comprises a box body 41, a storage rack 42 and an article sleeve 43, wherein the storage rack 42 is arranged on the inner wall of the box body 41, the storage rack 42 is used for placing articles to be disinfected, the box body 41 is reserved with a gas inlet and outlet to be connected with a main pipeline 321, the article sleeve 43 covers the articles to be disinfected, the article sleeve 43 is in a screen shape, and the article sleeve 43 is wet. After the object to be disinfected is placed in the disinfection box 4, as shown in fig. 5, the covered wetted object cover 43 can enrich the ozone molecules on the surface of the object, and the wetted moisture on the object cover 43 is contacted with the surface of the object after dissolving the ozone, compared with the case that the ozone molecules are contacted with the surface of the object in a gas form, the contact density of the ozone molecules dissolved in the water is higher, the ionization effect in the water is more remarkable, and the oxidation capacity of the ozone is stronger, so the disinfection effect is remarkable, which is a disinfection mode for the object capable of wetting the surface, if the object to be disinfected can not be contacted with more moisture, the wetted object cover 43 is cancelled when disinfection is needed, and the ozone molecules in the disinfection box are enriched by the water film on the surface of the object, thereby greatly improving the disinfection effect.

The sterilizing machine further comprises a breathing component 6, an electromagnetic valve is arranged at the position of an air inlet and outlet of the sterilizing box 4 connected with the main pipeline 321, the breathing component 6 is connected on the side wall of the sterilizing box 4, after the air inlet and outlet of the sterilizing box 4 connected with the main pipeline 321 is closed through the electromagnetic valve, the breathing component 6 generates periodic fluctuation positive and negative pressure in the sterilizing box 4. As shown in fig. 2 and 6, the periodic positive and negative pressures generated during the disinfection process in the disinfection box 4 can increase the action area of the water-wet film, because only the article is wrapped by the article sleeve 43, the contact between the water on the article sleeve 43 and the article is limited, the surface of the article is not sufficiently wetted, the area of the effect of increasing the disinfection effect in the water film by dissolving ozone is limited, and after the surface of the article consumes a part of the ozone in the disinfection box 4, the rest ozone molecules will not go on the vicinity of the surface of the article too actively, as the disinfection proceeds, the concentration of the ozone molecules near the surface of the article is gradually reduced, the reduction rate of the concentration of the ozone molecules at the far position is lower than that at the position near the article, and after the respiratory component 6 is added, the periodic positive and negative pressures in the disinfection box 4 can make the water film sleeve 43 evaporate and condense, and the evaporation and condensation process is matched with the gas flow, can let the water film dissolve the ozone of maximum in whole disinfection process, ozone concentration reduction rate in disinfect box 4 is unanimous, in addition, the condensation process of water film, liquid water is the microcosmic pit condensation on object surface of priority, compare in liquid water direct flow moist article surface, build the steam environment and then let the water pressure boost condense make moist effect better, moisture spreads each corner formation water film of article, and the water molecule can fully contact with the ozone molecule again in the process before condensing, directly incorporate the ozone molecule during condensation, thereby the water droplet that every condenses out all contains ozone, do not have the not enough problem of ozone, make each corner contact of ozone and article realize abundant disinfection.

The breathing assembly 6 comprises a compressor 61, a transfer box 62 and a reversing pipeline 63, wherein the transfer box 62 is arranged beside the box body 41, the reversing pipeline 63 is respectively connected with the compressor 61, the transfer box 62 and the box body 41, the reversing pipeline 63 realizes reversing through four branches and four electromagnetic valves, negative pressure is generated in the box body 41 when the compressor 61 sends gas from the box body 41 to the transfer box 62, and positive pressure is generated in the box body 41 when the compressor 61 sends gas from the transfer box 62 to the box body 41. The inlet and outlet of the compressor 61 are exchanged by two sets of four electromagnetic valves to realize the exchange of the blowing gas direction.

The article cover 43 is made of polytetrafluoroethylene. The polytetrafluoroethylene material is acid and alkali resistant and corrosion resistant, and can bear the oxidability of ozone.

The article cover 43 is subjected to a roughening treatment. The rough surface of the wire-like article cover 43 can carry more moisture to wet the surface of the article.

The outlet pipe 52 is provided with a booster, the outlet of the booster is provided with a drain valve, and the drain valve drains water to the water replenishing tank 313. The water is recycled, and the times of manual water replenishing of the water replenishing tank 313 are reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.