阅读说明：本技术 一种市政垃圾收集环保设备 (Municipal administration garbage collection environmental protection equipment ) 是由 赵文亮 郭韶鑫 陈青娟 王珍 郭志富 于 2021-08-13 设计创作，主要内容包括：本发明公开了一种市政垃圾收集环保设备,包括套装在外桶内的内桶、多个弧形挡块、多个弹性伸缩机构以及环形凸块；多个弧形挡块以内桶的中心为圆心均布环绕设置在内桶的外侧,多个弧形挡块卡装在水平开设于外桶内壁上的环形凹槽内且能在环形凹槽内水平移动；多个弹性伸缩机构的数量与多个弧形挡块的数量相同,且一一对应设置在多个弧形挡块与环形凹槽之间,用于带动多个弧形挡块在环形凹槽内同步伸缩移动；环形凸块固定在内桶的桶口处且向内桶的外侧凸起,环形凸块用于将多个弧形挡块向环形凹槽内挤压。本发明通过在多个弧形挡块与环形凸块之间的配合,能够将外桶与内桶之间的缝隙进行遮挡,避免垃圾落入到缝隙中。(The invention discloses municipal refuse collection environmental protection equipment, which comprises an inner barrel sleeved in an outer barrel, a plurality of arc-shaped stop blocks, a plurality of elastic telescopic mechanisms and annular convex blocks, wherein the plurality of arc-shaped stop blocks are arranged on the inner barrel; the arc-shaped stoppers are uniformly distributed and arranged on the outer side of the inner barrel in a surrounding way by taking the center of the inner barrel as a circle center, and the arc-shaped stoppers are clamped in an annular groove horizontally arranged on the inner wall of the outer barrel and can horizontally move in the annular groove; the number of the elastic telescopic mechanisms is the same as that of the arc-shaped stop blocks, and the elastic telescopic mechanisms are arranged between the arc-shaped stop blocks and the annular groove in a one-to-one correspondence manner and are used for driving the arc-shaped stop blocks to synchronously stretch and move in the annular groove; the annular bump is fixed at the bung hole of the inner barrel and protrudes towards the outer side of the inner barrel, and the annular bump is used for extruding the arc-shaped check blocks into the annular groove. According to the invention, through the matching between the arc-shaped stop blocks and the annular convex blocks, a gap between the outer barrel and the inner barrel can be shielded, and garbage is prevented from falling into the gap.)

1. The utility model provides a municipal administration garbage collection environmental protection equipment, includes that the suit is at interior bucket (2) of outer bucket (1) inside, its characterized in that still includes:

the arc-shaped stoppers (3) are uniformly arranged on the outer side of the inner barrel (2) in a surrounding manner by taking the center of the inner barrel (2) as a circle center, the arc-shaped stoppers (3) are clamped in the annular groove (101) and can horizontally move in the annular groove (101), and the annular groove (101) is horizontally arranged on the inner wall of the outer barrel (1) and is positioned above the inner barrel (2);

a plurality of elastic telescopic mechanisms with the same number as the arc-shaped stop blocks (3) are correspondingly arranged between the arc-shaped stop blocks (3) and the annular groove (101) one by one and are used for driving the arc-shaped stop blocks (3) to synchronously stretch and move in the annular groove (101);

the annular bump (4) is fixed at the barrel opening of the inner barrel (2), the annular bump (4) protrudes towards the outer side of the inner barrel (2), the annular bump (4) is in contact with the arc-shaped stoppers (3), and the annular bump (4) is used for extruding the arc-shaped stoppers (3) into the annular groove (101) when the inner barrel (2) vertically moves.

2. The municipal waste collection environment-friendly device according to claim 1, wherein the arc-shaped stopper (3) has a triangular cross section, the outer side wall (31) of the arc-shaped stopper (3) is parallel to the opening of the annular groove (101), the cross section of the annular projection (4) is quadrilateral, the upper outer wall (41) of the annular projection (4) is parallel to the lower inner wall (31) of the arc-shaped stopper (3), and the lower outer wall (42) of the annular projection (4) is parallel to the upper inner wall (32) of the arc-shaped stopper (3).

3. The municipal waste collection environment-friendly device according to claim 2, wherein the elastic telescoping mechanism comprises:

one end of the sliding rod (51) is vertically fixed with the center of the outer side wall (31) of the arc-shaped stop block (3);

the sliding groove (52) is horizontally formed in the inner wall of the annular groove (101), and the other end of the sliding rod (51) is clamped in the sliding groove (52) and is in sliding connection with the sliding groove (52);

the first spring (53) is sleeved on the sliding rod (51), and two ends of the first spring (53) are respectively fixed with the inner wall of the annular groove (101) and the outer side wall (31) of the arc-shaped stop block (3).

4. The municipal waste collection environment-friendly device according to claim 1, wherein the surfaces of the plurality of arc-shaped stoppers (3) and the surface of the annular projection (4) are provided with a wear-resistant layer.

5. The municipal waste collection environment-friendly device according to claim 1, wherein a ring-shaped supporting plate (6) is slidably sleeved on the inner bottom surface of the outer barrel (1), a supporting plate (61) is horizontally erected on the inner wall of the ring-shaped supporting plate (6), the inner diameter of the ring-shaped supporting plate (6) is larger than the outer diameter of the inner barrel (2), and the inner barrel (2) is placed on the supporting plate (61).

6. The municipal waste collection environment-friendly device according to claim 5, wherein a conical positioning block (62) is fixed to the center of the top of the supporting plate (61), and a conical groove (21) matched with the conical positioning block (62) is formed in the bottom of the inner barrel (2).

7. The municipal waste collection environment-friendly equipment according to claim 5, wherein the outer barrel (1) is provided with a lifting mechanism, and the output end of the lifting mechanism is connected with the outer wall of the annular support plate (6) and used for driving the annular support plate (6) to move vertically.

8. The municipal waste collection environment-friendly device of claim 7, wherein the lifting mechanism comprises:

the first rack (71) is vertically fixed on the outer wall of the annular supporting plate (6), the first rack (71) is clamped in the mounting groove (102) and can vertically move in the mounting groove (102), and the mounting groove (102) is vertically arranged on the inner wall of the outer barrel (1);

the rotating shaft (72) is horizontally arranged in the mounting groove (102) and is rotatably connected with the inner walls of the two sides of the mounting groove (102);

the gear (73) is sleeved and fixed on the rotating shaft (72), and the gear (73) is meshed with the first rack (71);

the second rack (74) is arranged on the opposite side of the first rack (71) and is positioned above the first rack (71), the second rack (74) is clamped in the mounting groove (102) and can vertically move in the mounting groove (102), the second rack (74) is meshed with the gear (73),

the second spring (75) is vertically arranged right below the second rack (74), and two ends of the second spring (75) are respectively fixed with the bottom of the second rack (74) and the inner bottom surface of the mounting groove (102);

the pedal (76) is horizontally clamped in the slot (104) and can vertically move in the slot (104), the slot (104) is vertically arranged on the inner wall of the mounting groove (102), one end of the pedal (76) is fixed with the side wall, away from the gear (73), of the second rack (74), and the other end of the pedal (76) extends to the outer side of the outer barrel (1).

Technical Field

The invention relates to the technical field of environmental protection, in particular to municipal waste collection environmental protection equipment.

Background

The municipal facilities refer to public facilities built by government, legal, or citizens, and generally refer to various buildings, structures, equipment, etc. within a planned area. Facilities and subsidiary facilities such as urban roads (including bridges), urban rail transit, water supply, drainage, gas, heating power, landscaping, environmental sanitation, road lighting, industrial waste medical waste, household waste treatment equipment, fields and the like.

The current municipal garbage bin is used for the common collection of various rubbish, comprises interior bucket and outer bucket usually, arranges interior bucket wholly in outer bucket, takes out the dumping rubbish from outer bucket for the convenience with interior bucket, consequently has the gap between interior bucket and the outer bucket, and passerby is when throwing away rubbish to interior bucket, and the rubbish that is more tiny can fall into in the clearance of interior bucket and outer bucket for garbage collection's is not thorough, thereby forms the pollution and remains the environmental protection.

Disclosure of Invention

The invention aims to provide municipal waste collection environmental protection equipment to solve the problems of the background art.

The technical scheme of the invention is as follows: a municipal refuse collection environmental protection device comprises an outer barrel, an inner barrel, a plurality of arc-shaped stop blocks, a plurality of elastic telescopic mechanisms and annular convex blocks; the inner barrel is sleeved in the outer barrel; the arc-shaped stoppers are uniformly distributed and arranged on the outer side of the inner barrel in a surrounding way by taking the center of the inner barrel as a circle center, are clamped in the annular groove and can horizontally move in the annular groove, and the annular groove is horizontally arranged on the inner wall of the outer barrel and is positioned above the inner barrel; the number of the elastic telescopic mechanisms is the same as that of the arc-shaped stop blocks, and the elastic telescopic mechanisms are arranged between the arc-shaped stop blocks and the annular groove in a one-to-one correspondence manner and are used for driving the arc-shaped stop blocks to synchronously stretch and move in the annular groove; the annular bump is fixed at the opening of the inner barrel, protrudes towards the outer side of the inner barrel, is in contact with the arc-shaped stoppers and is used for extruding the arc-shaped stoppers into the annular groove when the inner barrel vertically moves.

Furthermore, the cross section of the arc-shaped stop block is triangular, the outer side wall of the arc-shaped stop block is parallel to the groove opening of the annular groove, the cross section of the annular convex block is quadrilateral, the outer wall of the upper side of the annular convex block is parallel to the inner wall of the lower side of the arc-shaped stop block, and the outer wall of the lower side of the annular convex block is parallel to the inner wall of the upper side of the arc-shaped stop block.

Furthermore, the elastic telescopic mechanism comprises a sliding rod, a sliding groove and a first spring; one end of the sliding rod is vertically fixed with the center of the outer side wall of the arc-shaped stop block; the sliding groove is horizontally formed in the inner wall of the annular groove, and the other end of the sliding rod is clamped in the sliding groove and is in sliding connection with the sliding groove; the first spring suit is in on the slide bar, the both ends of first spring are fixed with the inner wall of annular groove and the lateral wall of arc dog respectively.

Furthermore, the surfaces of the arc-shaped stop blocks and the surfaces of the annular convex blocks are provided with wear-resistant layers.

Furthermore, an annular supporting plate is sleeved on the inner bottom surface of the outer barrel in a sliding mode, a supporting plate is horizontally erected on the inner wall of the annular supporting plate, the inner diameter of the annular supporting plate is larger than the outer diameter of the inner barrel, and the inner barrel is placed on the supporting plate.

Furthermore, a conical positioning block is fixed at the center of the top of the supporting plate, and a conical groove matched with the conical positioning block is formed in the bottom of the inner barrel.

Furthermore, the outer barrel is provided with a lifting mechanism, and the output end of the lifting mechanism is connected with the outer wall of the annular supporting plate and used for driving the annular supporting plate to vertically move.

Furthermore, the lifting mechanism comprises a first rack, a rotating shaft, a gear, a second rack, a second spring and a pedal; the first rack is vertically fixed on the outer wall of the annular supporting plate, is clamped in the mounting groove and can vertically move in the mounting groove, and the mounting groove is vertically formed in the inner wall of the outer barrel; the rotating shaft is horizontally arranged in the mounting groove and is rotationally connected with the inner walls of the two sides of the mounting groove; the gear is sleeved and fixed on the rotating shaft and meshed with the first rack; the second rack is arranged on the opposite side of the first rack and positioned above the first rack, the second rack is clamped in the mounting groove and can vertically move in the mounting groove, and the second rack is meshed with the gear; the second spring is vertically arranged right below the second rack, and two ends of the second spring are respectively fixed with the bottom of the second rack and the inner bottom surface of the mounting groove; the pedal plate is horizontally clamped in the slot opening and can vertically move in the slot opening, the slot opening is vertically formed in the inner wall of the mounting groove, one end of the pedal plate is fixed to the side wall, far away from the gear, of the second rack, and the other end of the pedal plate extends to the outer side of the outer barrel.

Compared with the prior art, the invention has the beneficial effects that:

1. when the plurality of arc-shaped check blocks are not extruded by the annular convex blocks, a complete circular ring can be formed through the plurality of elastic telescopic mechanisms, so that a gap between the outer barrel and the inner barrel is blocked under the matching of the annular convex blocks, the phenomenon that garbage falls into the gap when the garbage is thrown so as to cause pollution residue is avoided, and when the inner barrel is taken out and the garbage is dumped, the plurality of arc-shaped check blocks can be extruded into the annular groove through the annular convex blocks, so that the inner barrel is conveniently taken out.

2. According to the garbage can, the upper outer wall of the annular bump is parallel to the lower inner wall of the arc-shaped check block, the lower outer wall of the annular bump is parallel to the upper inner wall of the arc-shaped check block, the annular bump can be conveniently extruded into the annular groove rapidly when moving up and down along with the inner can, and meanwhile, due to the fact that the cross section of the arc-shaped check block is triangular and the cross section of the annular bump is quadrilateral, when garbage falls, the thrown garbage can rapidly slide into the inner can through the matching of the upper inclined surface of the arc-shaped check block and the upper inclined surface of the annular bump.

3. The invention uses the pedal extending out of the outer barrel as the input end through the lifting mechanism arranged on the annular supporting plate, when a cleaner takes the inner barrel out of the outer barrel to dump garbage, the pedal is trodden downwards by feet to drive the second rack to move downwards, because the gear is respectively meshed with the second rack and the first rack, the second rack can drive the first rack to move upwards when moving downwards so as to drive the annular supporting plate and the supporting plate to move upwards, the supporting plate lifts the inner barrel up when moving upwards, and the annular convex block fixed at the opening of the inner barrel is moved to be above the plurality of arc-shaped stop blocks, the outer wall of the lower side of the annular convex block is convex outwards, so that the cleaner can conveniently grasp the annular convex block by hand to lift the inner barrel out of the outer barrel, thereby being very convenient and avoiding the situation that the hand part is easily scratched by the edge of the outer barrel when the cleaner lifts the outer barrel out of the outer barrel, and because the input of elevating system relies on pedal the realization, need not extra power supply and drives, saved the energy.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a cross-sectional view taken at B-B of FIG. 1 in accordance with the present invention;

FIG. 4 is a cross-sectional view taken at C-C of FIG. 1 in accordance with the present invention;

FIG. 5 is a schematic view of the structure of the annular protrusion of the present invention pressing a plurality of arc-shaped stoppers.

Detailed Description

The following describes in detail a specific embodiment of the present invention with reference to fig. 1 to 5. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the invention, "a plurality" means two or more unless otherwise specified.

Examples

As shown in fig. 1 to 5, a municipal refuse collection environmental protection device comprises an outer barrel 1, an inner barrel 2, a plurality of arc-shaped stoppers 3, a plurality of elastic telescopic mechanisms and an annular bump 4; the inner barrel 2 is sleeved in the outer barrel 1; the arc-shaped stoppers 3 are uniformly arranged on the outer side of the inner barrel 2 in a surrounding way by taking the center of the inner barrel 2 as a circle center, the arc-shaped stoppers 3 are all clamped in the annular groove 101 and can horizontally move in the annular groove 101, and the annular groove 101 is horizontally arranged on the inner wall of the outer barrel 1 and is positioned above the inner barrel 2; the number of the elastic telescopic mechanisms is the same as that of the arc-shaped stop blocks 3, and the elastic telescopic mechanisms are correspondingly arranged between the arc-shaped stop blocks 3 and the annular groove 101 one by one and are used for driving the arc-shaped stop blocks 3 to synchronously stretch and move in the annular groove 101; the annular bump 4 is fixed at the opening of the inner barrel 2, the annular bump 4 protrudes towards the outer side of the inner barrel 2, the annular bump 4 is in contact with the plurality of arc-shaped stoppers 3, and the annular bump 4 is used for extruding the plurality of arc-shaped stoppers 3 into the annular groove 101 when the inner barrel 2 vertically moves.

When garbage is thrown into the inner barrel, the annular convex block 4 arranged at the opening of the inner barrel 2 is matched with the plurality of arc-shaped stop blocks 3, so that a gap between the inner barrel 2 and the outer barrel 1 can be shielded, the situation that the tiny garbage falls into the gap and is not convenient to clean is avoided, meanwhile, due to the existence of the plurality of elastic telescopic mechanisms, when the inner barrel 2 is taken out from the outer barrel 1 and the garbage stored in the dumping inner barrel 2 is discharged, the annular convex block 4 can extrude the plurality of arc-shaped stop blocks 3 into the annular groove 101 when moving upwards along with the inner barrel 2, so that the situation that the plurality of arc-shaped stop blocks 3 block the taking-out of the inner barrel 2 is avoided, when the inner barrel 2 is newly put into the outer barrel 1 after the garbage is dumped, the annular convex block 4 moves downwards to the position below the plurality of arc-shaped stop blocks 3, the plurality of arc-shaped stop blocks 3 stretch out from the annular groove 101 under the action of the plurality of elastic telescopic mechanisms, so that the gap between the outer barrel 1 and the inner barrel 2 is shielded again through the matching with the annular convex block 4, is very convenient and environment-friendly.

Preferably, as shown in fig. 2, in order to facilitate that the arc-shaped stoppers 3 can rapidly extrude the plurality of arc-shaped stoppers 3 into the annular groove 101 in the vertical up-and-down movement process, the cross sections of the arc-shaped stoppers 3 are triangular, the outer side walls 31 of the arc-shaped stoppers 3 are parallel to the notches of the annular groove 101, the cross sections of the annular protrusions 4 are quadrilateral, the upper outer walls 41 of the annular protrusions 4 are parallel to the lower inner walls 31 of the arc-shaped stoppers 3, and the lower outer walls 42 of the annular protrusions 4 are parallel to the upper inner walls 32 of the arc-shaped stoppers 3, and meanwhile, since the cross sections of the annular protrusions 4 are quadrilateral, as shown in fig. 2, when taking out the inner barrel 2, the inner barrel can be carried by holding the lower outer walls 42 of the annular protrusions 4, which is very practical.

Specifically, as shown in fig. 2 and 3, the elastic expansion mechanism includes a slide rod 51, a slide groove 52, and a first spring 53; one end of the sliding rod 51 is vertically fixed with the center of the outer side wall 31 of the arc-shaped stop block 3; the sliding groove 52 is horizontally arranged on the inner wall of the annular groove 101, and the other end of the sliding rod 51 is clamped in the sliding groove 52 and is in sliding connection with the sliding groove 52; the first spring 53 is sleeved on the sliding rod 51, and two ends of the first spring 53 are respectively fixed with the inner wall of the annular groove 101 and the outer side wall 31 of the arc-shaped stop block 3.

Referring to fig. 5, which is a state diagram when the plurality of arc-shaped stoppers 3 are pressed by the annular protrusion 4 just after the inner tub 2 is put into the outer tub 1, when the lower outer wall 42 of the annular protrusion 4 moves downward and presses the upper inner walls 32 of the plurality of arc-shaped stoppers 3 into the mounting groove 101, each arc-shaped stopper 3 moves into the mounting groove 101 through the cooperation of the sliding rod 51 and the sliding groove 52 after being pressed by the annular protrusion 4, and compresses the first spring 53 until the annular protrusion 4 moves below the plurality of arc-shaped stoppers 3, referring to fig. 1, 2 and 3, when the plurality of arc-shaped stoppers 3 move to the outside of the mounting groove 101 synchronously under the elastic force of the plurality of first springs 53 and the lower inner wall 31 of each arc-shaped stopper 3 is attached to the upper outer wall 41 of the annular protrusion 4, the plurality of arc-shaped stoppers 3 are gathered to form a complete ring, so as to block a gap between the inner tub 1 and the outer tub 2 through the cooperation with the annular protrusion 4, the garbage is prevented from falling into the gap; the process of pressing the plurality of arc-shaped stoppers 3 by the ring-shaped protrusions 4 when the inner barrel 2 is taken out of the outer barrel 1 is similar to the above process, and will not be described in detail.

Preferably, in order to avoid abrasion caused by frequent extrusion of the arc-shaped blocks 3 and the annular projections 4, the surfaces of the arc-shaped blocks 3 and the surfaces of the annular projections 4 are provided with wear-resistant layers.

Preferably, as shown in fig. 1 and 4, in order to fix the position height of the inner barrel 2 in the outer barrel 1, the annular protrusion 4 is located below the plurality of arc-shaped stoppers 3, and the upper outer wall 41 of the annular protrusion 4 is just attached to the lower inner wall 31 of the plurality of arc-shaped stoppers 3, so as to tightly shield the gap between the inner barrel 2 and the outer barrel 1 and prevent the garbage from leaking between the upper outer wall 41 of the annular protrusion 4 and the lower inner wall 31 of the plurality of arc-shaped stoppers 3, therefore, an annular support plate 6 is slidably sleeved on the inner bottom surface of the outer barrel 1, a support plate 61 is horizontally erected on the inner wall of the annular support plate 6, the inner diameter of the annular support plate 6 is larger than the outer diameter of the inner barrel 2, and the inner barrel 2 is placed on the support plate 61.

Preferably, as shown in fig. 1, in order to fix the position of the inner barrel 2 on the supporting plate 61 and prevent the deviation, a conical positioning block 62 is fixed at the center of the top of the supporting plate 61, and a conical groove 21 matched with the conical positioning block 62 is provided at the bottom of the inner barrel 2.

Preferably, as shown in fig. 1, in order to facilitate a cleaner to easily take out the inner barrel 2 from the outer barrel 1 and avoid being scratched by the edge of the outer barrel 1 when directly taking out the inner barrel 2 by hand, the outer barrel 1 is provided with a lifting mechanism, and an output end of the lifting mechanism is connected with an outer wall of the annular support plate 6 and is used for driving the annular support plate 6 to vertically move.

Specifically, as shown in fig. 1 and 4, the lifting mechanism includes a first rack 71, a rotating shaft 72, a gear 73, a second rack 74, a second spring 75, and a foot pedal 76; the first rack 71 is vertically fixed on the outer wall of the annular supporting plate 6, the first rack 71 is clamped in the mounting groove 102 and can vertically move in the mounting groove 102, and the mounting groove 102 is vertically arranged on the inner wall of the outer barrel 1; the rotating shaft 72 is horizontally arranged in the mounting groove 102 and is rotatably connected with the inner walls of the two sides of the mounting groove 102; the gear 73 is sleeved and fixed on the rotating shaft 72, and the gear 73 is meshed with the first rack 71; the second rack 74 is arranged at the opposite side of the first rack 71 and above the first rack 71, the second rack 74 is clamped in the mounting groove 102 and can vertically move in the mounting groove 102, and the second rack 74 is meshed with the gear 73; the second spring 75 is vertically arranged right below the second rack 74, and two ends of the second spring 75 are respectively fixed with the bottom of the second rack 74 and the inner bottom surface of the mounting groove 102; the pedal 76 is horizontally clamped in the slot 104 and can vertically move in the slot 104, the slot 104 is vertically arranged on the inner wall of the mounting groove 102, one end of the pedal 76 is fixed with the side wall of the second rack 74 far away from the gear 73, and the other end of the pedal 76 extends to the outer side of the outer tub 1.

When the inner barrel 2 needs to be taken out from the outer barrel 1, a cleaner only needs to step on the pedal 76 with feet, the second rack 74 is driven to synchronously move and compress the second spring 75 in the process that the pedal 76 moves downwards, the first rack 71 is driven to move upwards through the gear 73 when the second rack 74 moves downwards because the second rack 74 and the first rack 71 are both meshed with the gear 73, the annular supporting plate 6 is driven to move upwards through the upward movement of the first rack 71, so that the inner barrel 2 is lifted out of the inner barrel 1 by using the supporting plate 61, after the pedal 76 is released, the elastic acting force of the compressed second spring 75 is recovered to be in an extension state, and under the cooperation of the gravity action of the annular supporting plate 6, the second rack 74 and the pedal 76 are lifted, the next stepping is convenient, and the whole lifting process does not need to be driven by depending on power energy sources additionally, only need to be stepped on by feet, thereby not only being convenient, but also saving energy.

Although the preferred embodiments of the present invention have been disclosed, the embodiments of the present invention are not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.