阅读说明：本技术 高压氧舱 (Hyperbaric oxygen chamber ) 是由 朱笑波 于 2021-09-27 设计创作，主要内容包括：本发明提供的一种高压氧舱,涉及医疗设备技术领域,以在一定程度上优化舱门结构,提升舱门与舱体的密封效果。本发明提供的高压氧舱,包括舱体、舱门、导向组件以及升降组件；导向组件包括沿舱体的长度方向延伸,且相对设置于舱体的两侧的第一导向组件和第二导向组件,升降组件包括与第一导向组件滑动连接的第一升降组件和与第二导向组件滑动连接第二升降组件；舱体上形成有敞口部,舱门设置于舱体内,第一升降组件和第二升降组件的伸缩端支撑舱门,并带动舱门开启或封闭敞口部。(The invention provides a hyperbaric oxygen chamber, which relates to the technical field of medical equipment and aims to optimize the structure of the chamber door to a certain extent and improve the sealing effect of the chamber door and the chamber body. The invention provides a hyperbaric oxygen chamber, which comprises a chamber body, a chamber door, a guide assembly and a lifting assembly, wherein the chamber door is arranged on the chamber body; the guide assembly comprises a first guide assembly and a second guide assembly which extend along the length direction of the cabin body and are oppositely arranged on two sides of the cabin body, and the lifting assembly comprises a first lifting assembly and a second lifting assembly, wherein the first lifting assembly is connected with the first guide assembly in a sliding manner, and the second lifting assembly is connected with the second guide assembly in a sliding manner; the cabin body is provided with an open part, the cabin door is arranged in the cabin body, and the telescopic ends of the first lifting assembly and the second lifting assembly support the cabin door and drive the cabin door to open or close the open part.)

1. A hyperbaric oxygen chamber is characterized by comprising a chamber body, a chamber door, a guide assembly and a lifting assembly;

the guide assembly comprises a first guide assembly and a second guide assembly which extend along the length direction of the cabin body and are oppositely arranged on two sides of the cabin body, and the lifting assembly comprises a first lifting assembly and a second lifting assembly, wherein the first lifting assembly is connected with the first guide assembly in a sliding manner, and the second lifting assembly is connected with the second guide assembly in a sliding manner;

the cabin body is provided with an open part, the cabin door is arranged in the cabin body, and the telescopic ends of the first lifting assembly and the second lifting assembly support the cabin door and drive the cabin door to open or close the open part.

2. The hyperbaric chamber according to claim 1, wherein the first guide assembly and the second guide assembly each comprise a guide rail, a slide and a plurality of mounts;

the installation bases are arranged at intervals along the length direction of the cabin body, are connected with the inner wall surface of the cabin body and are used for installing the guide rails, and the sliding part is connected with the guide rails in a sliding manner so as to drive the lifting assembly to reciprocate along the length direction of the cabin body.

3. The hyperbaric chamber according to claim 2, wherein the sliding member comprises a first sliding member and a second sliding member, a first limiting member is mounted on one end of the guide rail close to the open part, and the first sliding member is positioned between the second sliding member and the first limiting member;

when the first sliding piece is in contact with the first limiting piece, the cabin door is located below the open part.

4. The hyperbaric chamber according to claim 3, wherein a second stop is mounted on the end of the guide rail remote from the open portion, and when the second slider contacts the second stop, the chamber door opens the open portion.

5. The hyperbaric chamber according to claim 4, wherein the second limiting member is provided with a first suction member on a side facing the first limiting member, the second sliding member is provided with a second suction member on a side facing the second limiting member, and the first suction member and the second suction member are mutually attracted.

6. The hyperbaric chamber of claim 2 wherein the first lifting assembly and the second lifting assembly each comprise a fixed seat and a lifting push rod, the fixed seat is connected with the sliding member, one end of the lifting push rod is connected with the fixed seat, and the other end of the lifting push rod is connected with the chamber door.

7. The hyperbaric chamber of claim 6, wherein the first lifting assembly and the second lifting assembly further comprise a positioning seat, the positioning seat comprises a connecting part and a bearing part, the connecting part is connected with the lifting end of the lifting push rod, the bearing part is formed with a receiving groove, and the edge of the chamber door is embedded into the receiving groove and connected with the positioning seat.

8. The hyperbaric chamber according to claim 1, characterized in that a seal is provided inside the chamber body and along the circumference of the open portion.

9. The hyperbaric chamber of claim 1 wherein the chamber comprises a main body portion, a first plugging portion and a second plugging portion;

the opening part is formed on the main body part, and the first blocking head part and the second blocking head part are both in semicircular hood-shaped structures and are respectively blocked at two sides of the main body part.

10. The hyperbaric chamber according to claim 1, further comprising a base on which said chamber is disposed.

Technical Field

The invention relates to the technical field of medical equipment, in particular to a hyperbaric oxygen chamber.

Background

In order to solve the problem that more and more people enter the plateau environment and lack oxygen, the invention discloses a hyperbaric oxygen chamber which is a sealed chamber, a hyperbaric oxygen chamber environment of 0.01-0.03MPa is built in the chamber, and the person puts in the chamber, because of the rise of pressure, a large amount of oxygen is dissolved in blood, the dissolved amount of blood oxygen of the human body is obviously increased, the partial pressure of the blood oxygen is increased, the dispersion capacity of the blood oxygen is improved, the effective dispersion radius of the oxygen is increased, effective and sufficient oxygen is provided for an anoxia organism, the oxygen content and the oxygen storage amount in tissues are increased, and the breathing environment of the person is recovered to be the same as that of the plain environment.

However, the sealing effect between the cabin door and the cabin body of the existing hyperbaric oxygen cabin is poor, so that the pressure in the cabin is difficult to control.

Therefore, it is desirable to provide a hyperbaric chamber which solves the problems of the prior art to some extent.

Disclosure of Invention

The invention aims to provide a hyperbaric oxygen chamber, so that the structure of the chamber door is optimized to a certain extent, and the sealing effect of the chamber door and the chamber body is improved.

The invention provides a hyperbaric oxygen chamber, which comprises a chamber body, a chamber door, a guide assembly and a lifting assembly, wherein the chamber door is arranged on the chamber body; the guide assembly comprises a first guide assembly and a second guide assembly which extend along the length direction of the cabin body and are oppositely arranged on two sides of the cabin body, and the lifting assembly comprises a first lifting assembly and a second lifting assembly, wherein the first lifting assembly is connected with the first guide assembly in a sliding manner, and the second lifting assembly is connected with the second guide assembly in a sliding manner; the cabin body is provided with an open part, the cabin door is arranged in the cabin body, and the telescopic ends of the first lifting assembly and the second lifting assembly support the cabin door and drive the cabin door to open or close the open part.

The first guide assembly and the second guide assembly respectively comprise a guide rail, a sliding piece and a plurality of mounting seats; the installation bases are arranged at intervals along the length direction of the cabin body, are connected with the inner wall surface of the cabin body and are used for installing the guide rails, and the sliding part is connected with the guide rails in a sliding manner so as to drive the lifting assembly to reciprocate along the length direction of the cabin body.

Specifically, the sliding part comprises a first sliding part and a second sliding part, a first limiting part is installed on one end, close to the opening part, of the guide rail, and the first sliding part is located between the second sliding part and the first limiting part; when the first sliding piece is in contact with the first limiting piece, the cabin door is located below the open part.

Furthermore, a second limiting piece is installed at one end, far away from the opening portion, of the guide rail, and when the second sliding piece is in contact with the second limiting piece, the hatch door opens the opening portion.

Furthermore, a first suction element is disposed on a side of the second limiting element facing the first limiting element, a second suction element is disposed on a side of the second sliding element facing the second limiting element, and the first suction element and the second suction element are attracted to each other.

The first lifting assembly and the second lifting assembly respectively comprise a fixing seat and a lifting push rod, the fixing seat is connected with the sliding piece, one end of the lifting push rod is connected with the fixing seat, and the other end of the lifting push rod is connected with the cabin door.

Specifically, the first lifting assembly and the second lifting assembly further comprise a positioning seat, the positioning seat comprises a connecting portion and a bearing portion, the connecting portion is connected with the lifting end of the lifting push rod, a containing groove is formed in the bearing portion, and the edge of the cabin door is embedded into the containing groove and connected with the positioning seat.

Further, a sealing member is arranged in the cabin body and along the circumferential direction of the open part.

Furthermore, the cabin body comprises a main body part, a first plugging part and a second plugging part; the opening part is formed on the main body part, and the first blocking head part and the second blocking head part are both in semicircular hood-shaped structures and are respectively blocked at two sides of the main body part.

The hyperbaric oxygen chamber provided by the invention further comprises a base, and the chamber body is arranged on the base.

Compared with the prior art, the hyperbaric oxygen chamber provided by the invention has the following advantages:

the invention provides a hyperbaric oxygen chamber, which comprises a chamber body, a chamber door, a guide assembly and a lifting assembly, wherein the chamber door is arranged on the chamber body; the guide assembly comprises a first guide assembly and a second guide assembly which extend along the length direction of the cabin body and are oppositely arranged on two sides of the cabin body, and the lifting assembly comprises a first lifting assembly and a second lifting assembly, wherein the first lifting assembly is connected with the first guide assembly in a sliding manner, and the second lifting assembly is connected with the second guide assembly in a sliding manner; the cabin body is provided with an open part, the cabin door is arranged in the cabin body, and the telescopic ends of the first lifting assembly and the second lifting assembly support the cabin door and drive the cabin door to open or close the open part.

From this analysis, it can be known that, through first guide assembly and the second guide assembly of the both sides of relative setting in the cabin body to make first lifting unit and second lifting unit correspond first guide assembly and the setting of second guide assembly respectively, can support the hatch door steadily. Because the cabin body is provided with the open part, the cabin door can open or close the open part through the extension and contraction of the lifting assembly. And because the lifting assembly can slide on the guide assembly, after the lifting assembly drives the cabin door to move to a maximum position in a direction away from the opening part, the cabin door can move along the guide assembly by pulling the cabin door, and then the opening part is completely opened.

Under the non-user state, the open portion is in the open state all the time, when the user enters into the cabin body, the user makes the lifting unit slide to the upper side of the sliding unit by pulling the cabin door, after the cabin door slides to the position corresponding to the open portion, the lifting unit drives the cabin door to ascend, thereby plugging the open portion, and through the thrust of the lifting unit, the cabin door can be pressed on the inner wall surface of the corresponding open portion of the cabin body all the time, therefore, the sealing degree of the cabin door and the cabin body can be improved to a certain extent.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of a first perspective of a hyperbaric chamber provided by an embodiment of the present invention;

FIG. 2 is a schematic structural view of a second perspective of the hyperbaric chamber provided by the embodiment of the invention;

fig. 3 is a partial structural schematic view of a guide rail assembly and a lifting assembly in the hyperbaric oxygen chamber provided by the embodiment of the invention.

In the figure: 1-a cabin body; 101-a body portion; 1011-open part; 102-a first plugging portion; 103-a second plugging portion; 2-a cabin door; 3-a guiding component; 301-a mounting seat; 302-a guide rail; 303-a slide; 4-a lifting assembly; 401-a fixed seat; 402-lifting a push rod; 403-positioning seat; 4031-a connection; 4032-carrier part; 5-base.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As used herein, the term "and/or" includes any one of the associated listed items and any combination of any two or more of the items.

For ease of description, spatial relationship terms such as "above … …," "upper," "below … …," and "lower" may be used herein to describe one element's relationship to another element as illustrated in the figures. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular forms also are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and/or combinations thereof.

Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, may be expected. Thus, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shape that occur during manufacturing.

The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. Further, while the examples described herein have a variety of configurations, other configurations are possible, as will be apparent after understanding the disclosure of the present application. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

As shown in fig. 1 and fig. 2, the present invention provides a hyperbaric oxygen chamber, which comprises a chamber body 1, a chamber door 2, a guide assembly 3 and a lifting assembly 4; the guide assembly 3 comprises a first guide assembly 3 and a second guide assembly 3 which extend along the length direction of the cabin body 1 and are oppositely arranged on two sides of the cabin body 1, and the lifting assembly 4 comprises a first lifting assembly 4 connected with the first guide assembly 3 in a sliding manner and a second lifting assembly 4 connected with the second guide assembly 3 in a sliding manner; an open part 1011 is formed on the cabin body 1, the cabin door 2 is arranged in the cabin body 1, and the telescopic ends of the first lifting assembly 4 and the second lifting assembly 4 support the cabin door 2 and drive the cabin door 2 to open or close the open part 1011.

Compared with the prior art, the hyperbaric oxygen chamber provided by the invention has the following advantages:

according to the hyperbaric oxygen chamber provided by the invention, the first guide assembly 3 and the second guide assembly 3 are oppositely arranged on two sides in the chamber body 1, and the first lifting assembly 4 and the second lifting assembly 4 are respectively arranged corresponding to the first guide assembly 3 and the second guide assembly 3, so that the chamber door 2 can be stably supported. Because the cabin body 1 is formed with the open part 1011, the open part 1011 can be opened or closed by the cabin door 2 through the extension and contraction of the lifting assembly 4.

Moreover, since the lifting assembly 4 can slide on the guide assembly 3, after the lifting assembly 4 drives the cabin door 2 to move to the extreme position in the direction away from the open part 1011, the cabin door 2 can move along the guide assembly 3 by pulling the cabin door 2, and then the open part 1011 is completely opened.

Under non-user state, open portion 1011 is in open state all the time, when user gets into cabin body 1 in, user is through pulling hatch door 2, make lift assembly 4 upwards slide on slide assembly, slide to the position back that corresponds open portion 1011 when hatch door 2, lift assembly 4 drive hatch door 2 rises, thereby carry out the shutoff to open portion 1011, and, thrust through lift assembly 4, can make hatch door 2 press the internal face that corresponds open portion 1011 at cabin body 1 all the time, consequently, can promote the sealed degree of hatch door 2 and cabin body 1 to a certain extent.

It should be added that here, because the hatch door 2 in this application is disposed in the cabin body 1, and needs to be able to slide relative to the open portion 1011, therefore, through making the first guiding component 3 and the second guiding component 3 that the guiding component 3 includes, and correspond to set up the first lifting component 4 on the first guiding component 3, correspond to set up the second lifting component 4 on the second guiding component 3, can guarantee to a certain extent that the atress of both sides of the hatch door 2 is balanced, thereby can guarantee to a certain extent that the stress is balanced everywhere after the hatch door 2 and the cabin body 1 are abutted.

Preferably, a sealing member is arranged between the cabin body 1 and the cabin door 2 in the application, and the sealing member is arranged along the circumferential direction of the open part 1011, so that the sealing member can be pressed when the cabin door 2 is lifted, and the sealing degree of the whole structure can be improved to a certain degree.

Further preferably, as shown in fig. 1, the cabin 1 in the present application includes a main body 101, a first plugging portion 102 and a second plugging portion 103; the opening 1011 is formed on the main body 101, and the first plugging portion 102 and the second plugging portion 103 are both in a semicircular hood-shaped structure and are respectively plugged on two sides of the main body 101, so that the hyperbaric oxygen chamber provided by the present application is a capsule-type hyperbaric oxygen chamber.

The hatch 2 in the present application is adapted to the cabin 1 in shape and size to the open area 1011.

As shown in fig. 2, each of the first guide assembly 3 and the second guide assembly 3 includes a guide rail 302, a sliding member 303, and a plurality of mounting seats 301; the plurality of mounting seats 301 are arranged at intervals along the length direction of the cabin body 1, are connected with the inner wall surface of the cabin body 1 and are used for mounting the guide rails 302, and the sliding part 303 is in sliding connection with the guide rails 302 so as to drive the lifting assembly 4 to reciprocate along the length direction of the cabin body 1.

The mounts 301 are provided at both ends of the guide rails 302 in the present application, and preferably, the number of the guide rails 302 in the present application is two, and thus, the number of the mounts 301 in the present application is four.

Further preferably, in order to ensure the stability of the lifting and sliding of the cabin door 2, the sliding member 303 of the present application includes a first sliding member 303 and a second sliding member 303, that is, a first sliding member 303 and a second sliding member 303 are disposed on each of the guide rails 302, and the first sliding member 303 and the second sliding member 303 are respectively disposed at two ends of the cabin door 2, so that the number of the sliding members 303 in the present application is four, and the four sliding members are respectively disposed at four corners of the cabin door 2, thereby ensuring the stability of the movement of the cabin door 2 to a certain extent.

It should be added that the number of the mounting seats 301 and the sliding members 303 is only one preferred embodiment, and a larger number of the mounting seats 301 and the sliding members 303 can be adopted to ensure the stable connection of the guide rails 302 with the cabin body 1 and the stable operation of the door 2.

It should be further added that in the present application, a first limiting member is installed on one end of the guide rail 302 close to the open portion 1011, and a second limiting member is installed on one end of the guide rail 302 away from the open portion 1011; the first sliding member 303 is located between the second sliding member 303 and the first limiting member; when the first sliding member 303 contacts with the first limiting member, the door 2 is located below the open portion 1011, and when the second sliding member 303 contacts with the second limiting member, the door 2 opens the open portion 1011.

The first limiting member and the second limiting member provided on the guide rail 302 can limit the sliding range of the door 2 by limiting the sliding of the sliding member 303.

When the first sliding member 303 contacts with the first limiting member, the door 2 is located right below the open portion 1011, so that the door 2 can close the open portion 1011 by controlling the lifting assembly 4.

When the second sliding member 303 contacts with the second limiting member, the cabin door 2 is located in the cabin 1 at a position far away from the open portion 1011, so that the open portion 1011 can be completely opened, and a user can conveniently get in and out of the cabin 1.

During the use, the user pulls the hatch door 2 in the cabin body 1, so that the first sliding member 303 moves towards the direction close to the first limiting member, when the first sliding member 303 contacts with the first limiting member, the hatch door 2 is located under the open part 1011, at this moment, the telescopic end of the lifting assembly 4 extends, the hatch door 2 is driven to lift, and therefore the open part 1011 is closed.

After the user uses the completion, the flexible end of lifting unit 4 contracts, makes hatch door 2 remove to the direction of keeping away from open portion 1011, and when removing to extreme position, user pulls hatch door 2, makes second slider 303 remove to the direction of being close to the second locating part to realize opening of open portion 1011, user can leave cabin body 1, accomplishes the use in proper order hyperbaric oxygen cabin.

It should be added that, preferably, the lifting assembly 4 in this application is an electromagnetic push rod, and a contact switch is disposed on the first limiting member, when the first sliding member 303 contacts with the first limiting member, the contact switch can switch on a circuit of the electromagnetic push rod, so that the electromagnetic push rod can drive the cabin door 2 to lift.

And the hyperbaric oxygen cabin in this application has specific live time, and when arriving live time, the electromagnetism push rod outage makes flexible end retract to make hatch door 2 can break away from open 1011, and rethread user pulls hatch door 2, accomplishes opening of open 1011.

Because this application is opened and is closed hatch door 2 and all realizes through pulling of user, and when the hyperbaric oxygen cabin outage, the flexible end of electromagnetism push rod is automatic to be retracted, consequently, when user in cabin body 1, and when the hyperbaric oxygen cabin outage, hatch door 2 breaks away from uncovered portion 1011 to the accessible pulls hatch door 2 in order to open uncovered portion 1011.

Preferably, a pulling handle is formed at one side of the cabin door 2 departing from the opening portion 1011, and the pulling handles are respectively arranged at two ends of the cabin door 2, so that the cabin door 2 can be better operated by personnel in the cabin.

Further preferably, in the present application, a first attraction piece is disposed on a side of the second limiting member facing the first limiting member, a second attraction piece is disposed on a side of the second sliding member 303 facing the second limiting member, and the first attraction piece and the second attraction piece attract each other.

Through the first attraction piece and the second attraction piece respectively arranged on the second limiting piece and the second sliding piece 303, when the second sliding piece 303 contacts with the second limiting piece, the first attraction piece and the second attraction piece attract each other, so that the problem that the second sliding piece 303 collides with the second limiting piece to generate rebound, and the cabin door 2 moves towards one end close to the opening part 1011 again is solved.

It should be added here that the first attraction piece and the second attraction piece in this application may be a magnet and a magnetic piece, respectively, and the door 2 is prevented from rebounding through magnetic attraction.

As shown in fig. 3, each of the first lifting assembly 4 and the second lifting assembly 4 includes a fixing base 401 and a lifting push rod 402, the fixing base 401 is connected to the sliding member 303, one end of the lifting push rod 402 is connected to the fixing base 401, and the other end is connected to the cabin door 2. The stability of the connection between the elevation push rod 402 and the slider 303 can be enhanced to some extent by the fixing base 401.

Specifically, as shown in fig. 3, in the present application, the first lifting assembly 4 and the second lifting assembly 4 further include a positioning seat 403, the positioning seat 403 includes a connecting portion 4031 and a bearing portion 4032, the connecting portion 4031 is connected to the lifting end of the lifting push rod 402, the bearing portion 4032 is formed with a receiving groove, and the edge of the door 2 is embedded in the receiving groove and connected to the positioning seat 403.

Through the holding tank that forms on the positioning seat 403, can make the marginal embedding holding tank of hatch door 2 to promote the stability of being connected between hatch door 2 and the lifting unit 4, and, can also increase the area of contact with hatch door 2 through the holding tank, thereby guarantee overall structure's use intensity to a certain extent.

As shown in figure 1, the hyperbaric oxygen chamber provided by the invention further comprises a base 5, and the chamber body 1 is arranged on the base 5.

Because the hyperbaric oxygen chamber in this application is the capsule type hyperbaric oxygen chamber, consequently, through setting up the cabin body 1 on base 5, stability when can guaranteeing to use.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.