阅读说明：本技术 一种节能预压滤水式垃圾压缩机 (Energy-conserving pre-compaction drainage formula rubbish compressor ) 是由 不公告发明人 于 2021-07-28 设计创作，主要内容包括：本发明公开了一种节能预压滤水式垃圾压缩机,包括壳体,所述壳体的顶部设有压缩机构,所述压缩机构包括第一电机、蜗杆、蜗轮、曲杆、圆块、空心环和压板,两个所述蜗轮的外壁一侧均固定设置有曲杆,两个所述曲杆的底部前端面均固接有圆块,两个所述圆块的外壁均滑动相连有空心环,两个所述空心环的底部固接有压板。该节能预压滤水式垃圾压缩机,通过第一电机、蜗杆、蜗轮、曲杆、圆块、空心环和压板之间的配合,使得该装置在使用时,通过圆块和空心环的滑动相连,使得蜗轮可带动曲杆通过圆块和空心环带动压板向下移动,进而使得压板可通过更多的力向下挤压垃圾,解决了单纯的液压系统难以将较硬垃圾完全压缩的问题。(The invention discloses an energy-saving pre-filter-pressing water type garbage compressor which comprises a shell, wherein a compression mechanism is arranged at the top of the shell and comprises a first motor, a worm, worm wheels, curved bars, round blocks, hollow rings and pressing plates, the curved bars are fixedly arranged on one sides of the outer walls of the two worm wheels, the round blocks are fixedly connected to the front end faces of the bottoms of the two curved bars, the hollow rings are connected to the outer walls of the two round blocks in a sliding mode, and the pressing plates are fixedly connected to the bottoms of the two hollow rings. This energy-conserving filter-pressing water formula rubbish compressor in advance, through first motor, worm wheel, curved bar, circle piece, hollow ring sum clamp plate between the cooperation for the device is when using, and the slip through circle piece and hollow ring links to each other, makes the worm wheel can drive the curved bar and passes through circle piece and hollow ring drive clamp plate downstream, and then makes more power of clamp plate accessible extrude rubbish downwards, has solved simple hydraulic system and has been difficult to the problem with harder rubbish complete compression.)

1. The utility model provides an energy-conserving pre-compaction drainage formula rubbish compressor, includes casing (1), its characterized in that: a filter plate (2) is fixedly arranged in the center of an inner cavity of the shell (1), a drawer (3) is attached to the top of the filter plate (2), the outer wall of the drawer (3) is in clearance fit with the right opening of the shell (1), and a compression mechanism (4) is arranged at the top of the shell (1);

the compression mechanism (4) comprises a first motor (401), a worm (402), a worm wheel (403), a curved bar (404), a round block (405), a hollow ring (406) and a pressure plate (407);

first motor (401) are installed in the outer wall top central authorities of casing (1), the output rigid coupling of first motor (401) has worm (402), the top one side of worm (402) is rotated through the bearing and is linked to in the top central authorities of casing (1), the outer wall both sides of worm (402) all mesh and link to each other worm wheel (403), two worm wheel (403) rotate respectively through the bearing frame and link to each other in the inner chamber top both sides of casing (1), two outer wall one side of worm wheel (403) all is fixed and is provided with curved bar (404), two the equal rigid coupling of terminal surface has circle piece (405) before the bottom of curved bar (404), two the outer wall of circle piece (405) all slides and links to each other hollow ring (406), two the bottom rigid coupling of hollow ring (406) has clamp plate (407).

2. The energy-saving pre-pressing water-filtering type garbage compressor according to claim 1, is characterized in that: the top of casing (1) is equipped with two sleeves (7), two sleeve (7) rigid coupling respectively extends to the inner wall in the outer wall top both sides of casing (1) two the equal clearance fit of inner wall of sleeve (7) has the body of rod (8), two the one end of the body of rod (8) rigid coupling respectively in the top both sides of clamp plate (407).

3. The energy-saving pre-pressing water-filtering type garbage compressor according to claim 1, is characterized in that: pneumatic cylinder (9), two are all installed to the inner chamber top both sides of casing (1) the equal rigid coupling of expansion end of pneumatic cylinder (9) has diaphragm (10), two one side difference rigid coupling of diaphragm (10) is in outer wall one side of two body of rod (8).

4. The energy-saving pre-pressing water-filtering type garbage compressor according to claim 1, is characterized in that: an anti-blocking mechanism (5) is arranged in the inner cavity of the shell (1);

the anti-blocking mechanism (5) comprises a second motor (501), a cam (502), a nail plate (503), a sliding block (504) and a sliding rail (505);

second motor (501) are installed in the outer wall rear end face bottom of casing (1), the output of second motor (501) passes through sealed bearing and rotates and link to each other in the rear end face of casing (1), the output rigid coupling of second motor (501) has cam (502), the top laminating of cam (502) has nail board (503), the both sides of nail board (503) are all fixed and are provided with slider (504), two one side of slider (504) all slides and link to each other slide rail (505), two slide rail (505) respectively the rigid coupling has the inner chamber both sides of casing (1).

5. The energy-saving pre-pressing water-filtering type garbage compressor according to claim 4, is characterized in that: the multiple nails on the top of the nail plate (503) correspond to the multiple water filtering holes in the filter plate (2) respectively.

6. The energy-saving pre-pressing water-filtering type garbage compressor according to claim 1, is characterized in that: a water filtering mechanism (6) is arranged at the bottom of the shell (1);

the water filtering mechanism (6) comprises a cylinder body (601), a screw rod (602), a threaded sleeve (603), a clamping block (604) and a water filter (605);

the utility model discloses a water purifier, including barrel (601), screw rod (602), threaded bush (603), two equal threaded bush (603) of the outer wall one side of screw rod (602), two equal rigid coupling of one side of threaded bush (603) has clamp splice (604), two the one side of clamp splice (604) is supported tightly and is had water purifier (605), the outer wall of water purifier (605) is closely laminated in the opening inner wall of casing (1) bottom, the both sides of barrel (601) rotate through the bearing and are linked to each other, two the equal threaded bush (603) of outer wall one side has, two the one side of clamp splice (604) is supported tightly and is had water purifier (605), the outer wall of water purifier (605) is closely laminated in the opening inner wall of casing (1) bottom.

7. The energy-saving pre-pressing water-filtering type garbage compressor according to claim 1, is characterized in that: base (11) are installed in the bottom four corners of casing (1), the bottom of casing (1) is equipped with ring gear (12), the inner chamber of ring gear (12) passes through the bearing and rotates and link to each other in the outer wall of barrel (601), the equal rigid coupling in outer wall both sides of ring gear (12) has handle (13), the bottom both sides of ring gear (12) all mesh and have linked to each other gear (14), two the inner wall difference rigid coupling of gear (14) is in the outer wall one end of two screw rods (602).

8. The energy-saving pre-pressing water-filtering type garbage compressor according to claim 7, is characterized in that: the outer wall of the handle (13) is processed with grinding grains.

Technical Field

The invention relates to the technical field of pre-pressing water filtering type garbage compressors, in particular to an energy-saving pre-pressing water filtering type garbage compressor.

Background

The garbage compressor is one of main equipment for compressing and reducing the volume of garbage, is also main treatment equipment of a garbage transfer station, is main equipment of the garbage transfer station, and is a machine which is controlled by a hydraulic system and compresses the collected garbage so as to reduce the volume of the garbage.

When the existing pre-filter pressing water type garbage compressor is used, as some garbage is hard, a simple hydraulic system is difficult to completely compress the garbage, and the condition that the filter plate is blocked easily occurs during water filtration, so that the filter plate is not communicated with water, and further the subsequent use is influenced.

Disclosure of Invention

The invention aims to provide an energy-saving pre-filter-pressing water type garbage compressor, which aims to solve the problem that hard garbage is difficult to be completely compressed by a simple hydraulic system in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an energy-saving pre-pressing water filtering type garbage compressor comprises a shell, wherein a filter plate is fixedly arranged in the center of an inner cavity of the shell, a drawer is attached to the top of the filter plate, the outer wall of the drawer is in clearance fit with a right opening of the shell, and a compression mechanism is arranged at the top of the shell;

the compression mechanism comprises a first motor, a worm wheel, a curved bar, a round block, a hollow ring and a pressing plate;

first motor is installed in the outer wall top central authorities of casing, the output rigid coupling of first motor has the worm, top one side of worm rotates through the bearing and links to each other in the top central authorities of casing, the outer wall both sides of worm all mesh and link to each other there is the worm wheel, two the worm wheel rotates respectively through the bearing frame and links to each other in the inner chamber top both sides of casing, two the outer wall one side of worm wheel all is fixed and is provided with the curved bar, two the equal rigid coupling of terminal surface has the circle piece, two before the bottom of curved bar the outer wall of circle piece all slides and links to each other hollow ring, two the bottom rigid coupling of hollow ring has the clamp plate.

Preferably, the top of casing is equipped with two sleeves, two the sleeve rigid coupling respectively in the outer wall top both sides of casing and extend to the inner wall, two the equal clearance fit of telescopic inner wall has the body of rod, two the one end rigid coupling respectively in the top both sides of clamp plate of the body of rod.

Preferably, the pneumatic cylinder is all installed to the inner chamber top both sides of casing, two the equal rigid coupling of expansion end of pneumatic cylinder has the diaphragm, two one side of diaphragm rigid coupling in outer wall one side of two bodies of rod respectively.

Preferably, an anti-blocking mechanism is arranged in the inner cavity of the shell;

the anti-blocking mechanism comprises a second motor, a cam, a nail plate, a sliding block and a sliding rail;

the second motor is installed in the outer wall rear end face bottom of casing, the output of second motor passes through sealed bearing and rotates the rear end face that links to each other in the casing, the output rigid coupling of second motor has the cam, the top laminating of cam has the nail board, the both sides of nail board are all fixed and are provided with the slider, two one side of slider all slides and links to each other and has the slide rail, two the slide rail difference rigid coupling has the inner chamber both sides of casing.

Preferably, the nails on the top of the nail plate respectively correspond to the plurality of water filtering holes in the filter plate.

Preferably, the bottom of the shell is provided with a water filtering mechanism;

the water filtering mechanism comprises a cylinder, a screw rod, a threaded sleeve, a clamping block and a water filter;

the barrel is fixedly connected to the bottom of the outer wall of the shell, the two sides of the barrel are connected with screws in a rotating mode through bearings, one side of the outer wall of each screw is connected with a threaded sleeve in a threaded mode, one side of each threaded sleeve is fixedly connected with a clamping block, one side of each clamping block abuts against a water filter, and the outer wall of the water filter is tightly attached to the inner wall of the opening of the bottom of the shell

Preferably, the base is installed in the bottom four corners of casing, the bottom of casing is equipped with the ring gear, the inner chamber of ring gear passes through the bearing and rotates the outer wall that links to each other in the barrel, the equal rigid coupling in outer wall both sides of ring gear has the handle, the bottom both sides of ring gear all mesh and link to each other has the gear, two the inner wall of gear rigid coupling respectively in the outer wall one end of two screws.

Preferably, the outer wall of the handle is processed with abrasive grains.

Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use.

This energy-conserving filter-pressing water formula rubbish compressor in advance, through first motor, the worm wheel, the curved bar, the round block, the cooperation between hollow ring sum clamp plate, make the device when using, first motor accessible worm drives two worm wheels simultaneously and rotates in opposite directions, it is continuous to slide through round block and hollow ring, make the worm wheel can drive the curved bar and pass through round block and hollow ring and drive the clamp plate downstream, and then make the more power of clamp plate accessible extrude rubbish downwards, the problem that pure hydraulic system is difficult to the complete compression of harder rubbish is solved.

Through the cooperation between second motor, cam, nail board, slider and the slide rail for the device is when using, and the second motor can drive the cam and rotate, and the slip through slider and slide rail links to each other, utilizes the eccentricity of cam, makes nail board reciprocating motion from top to bottom, and then makes the nail at nail board top can dredge the filtration pore of filter plate, and the condition of jam appears easily in the filter plate when having solved drainage.

Through the cooperation between screw rod, thread bush, clamp splice and the water purifier, make the device when using, the relative rotation of two screw rods can drive two thread bushes simultaneously and control the removal in opposite directions, and one side rigid coupling through two thread bushes has the clamp splice, makes two clamp splices can fix the water purifier and filters sewage in the casing bottom, and the dismouting of the water purifier of being convenient for of this kind of fixed mode, and convenient to use person dismantles the back with the water purifier and clears up the inside dirt of casing.

Through the cooperation between ring gear, gear and the handle for the device is when using, and the handle can drive and use the barrel to rotate as the center at the ring gear, and the meshing through ring gear and two gears links to each other, makes the ring gear can drive two gears simultaneously and rotate in opposite directions, and then makes two gears can drive two screws simultaneously and rotate in opposite directions, has made things convenient for user's operation.

Drawings

FIG. 1 is a schematic diagram of the connection relationship of the present invention;

FIG. 2 is a schematic cross-sectional view of the sleeve, housing and base of FIG. 1;

FIG. 3 is a schematic view of the rod, hydraulic cylinder and curved rod of FIG. 2;

FIG. 4 is a schematic structural diagram of the slide rail, the slider and the housing of FIG. 2;

FIG. 5 is a schematic view of the screw, threaded sleeve and gear of FIG. 2;

fig. 6 is a schematic structural diagram of the filter plate, the slide rail and the housing in fig. 2.

In the figure: 1. the filter plate comprises a shell, 2, a filter plate, 3, a drawer, 4, a compression mechanism, 401, a first motor, 402, a worm, 403, a worm wheel, 404, a curved rod, 405, a round block, 406, a hollow ring, 407, a pressing plate, 5, an anti-blocking mechanism, 501, a second motor, 502, a cam, 503, a nail plate, 504, a sliding block, 505, a sliding rail, 6, a water filtering mechanism, 601, a cylinder body, 602, a screw rod, 603, a threaded sleeve, 604, a clamping block, 605, a water filter, 7, a sleeve, 8, a rod body, 9, a hydraulic cylinder, 10, a transverse plate, 11, a base, 12, a gear ring, 13, a handle, 14 and a gear.

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 a technical solution: an energy-saving pre-pressing water-filtering type garbage compressor comprises a shell 1, a filter plate 2 is fixedly arranged in the center of an inner cavity of the shell 1, a drawer 3 is attached to the top of the filter plate 2, a plurality of through holes are formed in the bottom of the drawer 3, so that sewage can flow out of the through holes when garbage is compressed, the plurality of filter holes in the filter plate 2 correspond to the plurality of through holes in the bottom of the drawer 3, the outer wall of the drawer 3 is in clearance fit with the right opening of the shell 1, so that the drawer 3 can enter and exit from the opening in the right side of the shell 1, a compression mechanism 4 is arranged on the top of the shell 1, the compression mechanism 4 comprises a first motor 401, a worm 402, a worm wheel 403, a crank 404, a round block 405, a hollow ring 406 and a pressing plate 407, the first motor 401 is arranged in the center of the top of the outer wall of the shell 1, a user can select the model of the first motor 401 according to actual requirements, the output end of the first motor 401 is fixedly connected with the worm 402, so that the first motor 401 can drive the worm 402 to rotate, one side of the top of the worm 402 is rotatably connected to the center of the top of the housing 1 through a bearing, two sides of the outer wall of the worm 402 are respectively engaged and connected with worm wheels 403, the two worm wheels 403 are respectively rotatably connected to two sides of the top of the inner cavity of the housing 1 through bearing seats, so that the rotation of the worm 402 can simultaneously drive the two worm wheels 403 to rotate in opposite directions, one side of the outer wall of each worm wheel 403 is fixedly provided with a curved rod 404, the front end surfaces of the bottoms of the two curved rods 404 are respectively and fixedly connected with a round block 405, so that the worm wheels 403 can drive the round block 405 to rotate through the curved rods 404, the outer walls of the two round blocks 405 are respectively and slidably connected with a hollow ring 406, the bottoms of the two hollow rings 406 are respectively and fixedly connected with a pressing plate 407, the pressing plate 407 is driven to move downwards through the round blocks 405 and the hollow ring 406, the top of the housing 1 is provided with two sleeves 7, the two sleeves 7 are respectively and fixedly connected to two sides of the top of the outer wall of the housing 1 and extend to the inner wall, the inner walls of the two sleeves 7 are in clearance fit with rod bodies 8, so that the rod bodies 8 can stably move up and down on the inner walls of the sleeves 7, one ends of the two rod bodies 8 are fixedly connected to two sides of the top of the pressing plate 407 respectively, the pressing plate 407 can stably move, hydraulic cylinders 9 are mounted on two sides of the top of the inner cavity of the shell 1, a user can select the type of the hydraulic cylinder 9 according to actual requirements, transverse plates 10 are fixedly connected to movable ends of the two hydraulic cylinders 9 respectively, one sides of the two transverse plates 10 are fixedly connected to one sides of the outer walls of the two rod bodies 8 respectively, the hydraulic cylinders 9 can drive the pressing plate 407 to move downwards through the transverse plates 10 and the rod bodies 8, and the pressing plate 407 can downwards extrude garbage through more force;

through first motor, the worm wheel, the curved bar, the circle piece, hollow ring sum clamp plate between the cooperation, make the device when using, first motor accessible worm drives two worm wheels simultaneously and rotates in opposite directions, slide through circle piece and hollow ring links to each other, make the worm wheel can drive the curved bar and drive the clamp plate through circle piece and hollow ring and move down, and then make more power of clamp plate accessible extrude rubbish downwards, solved simple hydraulic system and be difficult to the problem with harder rubbish complete compression.

An anti-blocking mechanism 5 is arranged in an inner cavity of the shell 1, the anti-blocking mechanism 5 comprises a second motor 501, a cam 502, a nail plate 503, a sliding block 504 and a sliding rail 505, the second motor 501 is arranged at the bottom of the rear end face of the outer wall of the shell 1, a user can select the type of the second motor 501 according to actual requirements, the output end of the second motor 501 is connected with the rear end face of the shell 1 through a sealed bearing in a rotating manner, the cam 502 is fixedly connected with the output end of the second motor 501, so that the second motor 501 can drive the cam 502 to rotate, the nail plate 503 is attached to the top of the cam 502, the cam 502 can drive the nail plate 503 to dredge the filter plate 2 when rotating by utilizing the eccentricity of the cam 502, the sliding blocks 504 are fixedly arranged on two sides of the nail plate 503, the sliding rail 505 is respectively connected to one side of each of the two sliding blocks 504, the two sliding rails 505 are respectively fixedly connected to two sides of the inner cavity of the shell 1, and are limited by the sliding of the sliding blocks 504 and the sliding rails 505, the nail plate 503 can move up and down stably, and a plurality of nails on the top of the nail plate 503 correspond to a plurality of water filtering holes in the filter plate 2 respectively, so that the nails on the top of the nail plate 503 can dredge the filtering holes of the filter plate 2 accurately;

through the cooperation between second motor, cam, nail board, slider and the slide rail for the device is when using, and the second motor can drive the cam and rotate, and the slip through slider and slide rail links to each other, utilizes the eccentricity of cam, makes nail board reciprocating motion from top to bottom, and then makes the nail at nail board top can dredge the filtration pore of filter plate, and the condition of jam appears easily in the filter plate when having solved drainage.

The bottom of the shell 1 is provided with a water filtering mechanism 6, the water filtering mechanism 6 comprises a cylinder 601, a screw 602, threaded sleeves 603, clamping blocks 604 and a water filter 605, the cylinder 601 is fixedly connected to the bottom of the outer wall of the shell 1, the two sides of the cylinder 601 are rotatably connected with the screw 602 through bearings, one side of the outer wall of each of the two screw 602 is in threaded connection with the threaded sleeves 603, the screw 602 rotates in opposite directions to drive the two threaded sleeves 603 to move in opposite directions, one side of each of the two threaded sleeves 603 is fixedly connected with the clamping block 604, the threaded sleeves 603 can drive the clamping blocks 604 to move, one side of each of the two clamping blocks 604 is tightly abutted against the water filter 605, the outer wall of the water filter 605 is tightly abutted to the inner wall of the opening at the bottom of the shell 1, one side of each of the two threaded sleeves 603 is fixedly connected with the clamping block 604, so that the two clamping blocks 604 can fix the water filter 605 at the bottom of the shell 1 to filter sewage, and the fixing mode is convenient for dismounting and mounting and dismounting the water filter 605, the water filter 605 is convenient for a user to clean dirt inside the shell 1 after the water filter 605 is detached, the bases 11 are mounted at four corners of the bottom of the shell 1, the bottom of the shell 1 is provided with the gear ring 12, an inner cavity of the gear ring 12 is connected to the outer wall of the cylinder 601 through a bearing in a rotating mode, the gear ring 12 can rotate around the cylinder 601, the handles 13 are fixedly connected to two sides of the outer wall of the gear ring 12, the gear ring 13 can drive the gear ring 12 to rotate, the gears 14 are connected to two sides of the bottom of the gear ring 12 in a meshing mode, inner walls of the two gears 14 are fixedly connected to one ends of the outer walls of the two screw rods 602 respectively, the gear ring 12 can drive the two screw rods 602 to rotate oppositely through the two gears 14, operation of the user is facilitated, and the outer wall of the handle 13 is provided with grinding grains, so that the user can rotate the handle 13 more easily;

through the matching among the screw rods, the thread sleeves, the clamping blocks and the water filter, when the device is used, the two screw rods rotate in opposite directions to simultaneously drive the two thread sleeves to move in opposite directions left and right, and the clamping blocks are fixedly connected to one sides of the two thread sleeves, so that the water filter can be fixed at the bottom of the shell by the two clamping blocks to filter sewage;

through the cooperation between ring gear, gear and the handle for the device is when using, and the handle can drive and use the barrel to rotate as the center at the ring gear, and the meshing through ring gear and two gears links to each other, makes the ring gear can drive two gears simultaneously and rotate in opposite directions, and then makes two gears can drive two screws simultaneously and rotate in opposite directions, has made things convenient for user's operation.

When using this energy-conserving pre-compaction drainage formula rubbish compressor, first motor 401 accessible worm 402 drives two worm wheel 403 simultaneously and rotates in opposite directions, and is continuous through the slip of circle piece 405 and hollow ring 406 for worm wheel 403 can drive curved bar 404 and drive clamp plate 407 through circle piece 405 and hollow ring 406 and move downwards, and then makes clamp plate 407 accessible more power extrude rubbish downwards, has solved simple hydraulic system and has been difficult to the problem of hard rubbish complete compression. The second motor 501 can drive the cam 502 to rotate, is connected with the slide rail 505 through the sliding of the slide block 504, and utilizes the eccentricity of the cam 502 to enable the nail plate 503 to move up and down in a reciprocating manner, so that the nails at the top of the nail plate 503 can dredge the filter holes of the filter plate 2, and the problem that the filter plate 2 is easy to block during water filtration is solved. Handle 13 can drive and use barrel 601 to rotate as the center at ring gear 12, it is continuous to link to each other through the meshing of ring gear 12 and two gears 14, make ring gear 12 can drive two gears 14 simultaneously and rotate in opposite directions, and then make two gears 14 can drive two screw rods 602 simultaneously and rotate in opposite directions, the rotation in opposite directions of two screw rods 602 can drive two thread bush 603 simultaneously and control and move in opposite directions, one side rigid coupling through two thread bush 603 has clamp splice 604, make two clamp splice 604 can fix water purifier 605 and filter sewage in casing 1 bottom, the dismouting of water purifier 605 is convenient for to this kind of fixed mode, convenient to use person dismantles back water purifier 605 and clears up the inside dirt of casing 1.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, 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 device or element 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.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.