Detachable capsule medicine taking equipment for paediatrics
Technical Field
The invention relates to medicine taking equipment, in particular to medicine taking equipment of a detachable capsule for pediatrics.
Background
Along with medical development, the storage mode of medicament also increases gradually, people can be with the direct encapsulation of solid-state medicament in the capsule to preserve the use, and can effectively avoid causing the medicine to damage extravagant in the transportation, when the capsule is opened in the needs split, all open it through artifical wearing disinfection gloves generally.
According to a medicine inspection capsule medicine taking device of patent grant publication number CN207081576U, including bottom plate, medicine outlet, support column, first pivot, support arm, second pivot, card medicine arm, third pivot, connecting rod, bearing, the medicine outlet has been seted up in the middle of the bottom plate, integrated into one piece has the support column respectively in the bottom plate left and right sides, the support arm outside is connected through first pivot respectively to the support column front side, the capsule draw-in groove has been seted up respectively to the support arm inboard, card medicine arm is connected through the second pivot respectively at the inboard top of support arm, card medicine arm inboard top is connected the connecting rod through the third pivot respectively, install on the bearing at two connecting rod tops.
Above-mentioned capsule medicine taking device is through holding the bearing with the hand and pressing down to make the capsule tear apart, and the powder in the capsule can fall on the household utensils, but this capsule medicine taking device all need the staff to take out empty capsule with the hand after getting the medicine at every turn, and this kind of mode of taking pollutes the capsule easily, and follow-up capsule recycle of being inconvenient for is comparatively inconvenient, consumes the manpower.
In order to solve the problems in the prior art, it is necessary to design a medicine taking device for a pediatric split capsule, so as to achieve the effects of fast and convenient splitting of the capsule and the powder and difficult pollution.
Disclosure of Invention
In order to overcome the defects that the existing capsule medicine taking device is easy to pollute capsules when taking empty capsules, inconvenient to take and labor-consuming, the invention has the following technical problems: provides a medicine taking device for separating the capsule from the medicine powder quickly, conveniently and difficultly polluted pediatric separable capsule.
The technical scheme is as follows: the utility model provides a but equipment of getting it filled of split capsule for paediatrics, the on-line screen storage device comprises a base, a support, the operation box, the apron, the ejection of compact frame, the carriage, the elastic component, the pivot, the layer board, the connecting plate, the fixed plate, the holder, split subassembly and collection subassembly, the top bilateral symmetry of base is equipped with the support, be connected with the operation box between two support tops, the bottom of operation box is connected with ejection of compact frame, the top of operation box is connected with the apron, open at the middle part of apron has the feed inlet, the equal slidingtype of left and right sides of operation box has the carriage, two carriages are bilateral symmetry setting, all be connected with the elastic component between the inner wall of two carriages and operation box, one side that two carriages are close to each other is all rotated and is run through the pivot, all be connected with the layer board in two pivots, two layer boards are bilateral symmetry setting, all be connected with the connecting plate on two connecting plates, two holding frames are the front and back symmetry setting, the middle part of two connecting plates all is connected with the fixed plate on two connecting plates, the left and right sides of operation box all is equipped with split subassembly, the inside downside of operation box is equipped with collection subassembly.
In addition, particularly preferred split subassembly is including contact rod, the cylinder, first link, the slide bar, the wedge, compression spring, reset spring and separation blade, all be connected with reset spring between two clamping frames of homonymy and the fixed plate of homonymy, the contact rod is all arranged to the bilateral symmetry about one side that two clamping frames kept away from each other, the slide bar has all been run through to the left and right sides of operation box, two slide bars are bilateral symmetry setting, the slide bar all is located the top of slide frame, the one end that two slide bars are close to each other all is connected with the wedge, the one end that two slide bars kept away from each other all is connected with the separation blade, all be connected with compression spring between two slide bars and the operation box inner wall, two compression spring overlaps respectively on two slide bars, the wedge of homonymy all cooperates with two contact rods of homonymy, the cylinder is all installed to the rear side of two walls about the operation box, two cylinders are bilateral symmetry setting, all be connected with first link on the extensible part of two cylinders, two first link are bilateral symmetry setting, two first link respectively with two slide bars.
In addition, particularly preferred, collect the subassembly including extrusion piece and screen bar, the one side that two wedge tops are close to each other all is connected with the extrusion piece, and two extrusion pieces are bilateral symmetry setting, and two extrusion pieces slip respectively runs through two connecting plates, and the inside downside of operation box is connected with the screen bar, and the front wall lower part of operation box is opened there is the discharge opening.
In addition, particularly preferred is, still including the material loading subassembly, the material loading subassembly is including the second link, the storage frame, keep off the frame, axostylus axostyle and roller, the upside of operation box is connected with two second link, two second link are bilateral symmetry setting, be connected with the storage frame between two second link tops, the bottom of storage frame is connected with keeps off the frame, keep off the frame and be located the feed inlet top of apron, the downside of two second link is connected with the axostylus axostyle in keeping off the inside of frame, be connected with the roller on the axostylus axostyle, the roller rotation is located keeps off the frame inside, connect the silo all to open in the upper and lower both sides of roller.
In addition, particularly preferred is, still including transposition subassembly, transposition subassembly is including connecting block, the push rod, press the frame, torsion spring and transparent plate, the front side of operation box is connected with the transparent plate, two press the frame around the inside of operation box all be connected with, two press the frame of same wall are bilateral symmetry setting, both sides all are connected with the connecting block around two pivots, connecting block and press the frame contact cooperation, be connected with torsion spring between connecting block and the carriage, two walls all are connected with the push rod around two wedge, two push rods on two wedge all are the bilateral symmetry setting.
In addition, particularly preferred still including rotating assembly, rotating assembly is including one-way clutch, spliced pole and connecting rod, and one-way clutch is all installed to the left and right sides of axostylus axostyle, all is connected with the spliced pole on two one-way clutches, and two spliced poles are bilateral symmetry setting, and two spliced pole outer walls all open there is the spout, and the top of two first link all is connected with the connecting rod, and the top of two connecting rods contacts the cooperation in two spouts respectively.
In addition, particularly preferred is, still including seal assembly, seal assembly is including inserting frame, locating plate and rubber strip, and the outer wall top of storage frame is connected with the rubber strip, and the top joint of storage frame has to insert the frame, and the left and right sides of inserting the frame all is connected with the locating plate, and two locating plates are bilateral symmetry setting, and two locating plates all contact the cooperation with the rubber strip.
Furthermore, it is particularly preferred that the tops of both pallets are provided with arcuate grooves.
The invention has the following beneficial effects: 1. the capsule is loosened through the clamping frame, the capsule and the medicine powder drop downwards along the supporting plate, the capsule drops on the screen bar and slides out of the operation box through the discharge hole, and meanwhile, the medicine powder drops downwards to pass through the screen bar and drop out along the discharge frame, so that the capsule and the medicine powder can be separated quickly and conveniently, and the capsule and the medicine powder cannot be polluted.
2. Through starting both sides cylinder shrink, the extensible member of both sides cylinder drives the spliced pole of both sides through first link and connecting rod respectively and rotates clockwise, and two connecting rods drive axostylus axostyle and roller through one-way clutch respectively and rotate 180 degrees clockwise, connect the inslot capsule to drop on the layer board afterwards to this need not the staff and can put the capsule on the layer board voluntarily.
3. The inserting frame and the two positioning plates are inserted back into the storage frame, so that air circulation can be avoided, the capsules in the storage frame are softened, and dust and impurities can be prevented from entering the storage frame.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of a first part of the present invention.
Fig. 3 is a schematic perspective view of a second part of the present invention.
Fig. 4 is a schematic perspective view of a third portion of the present invention.
Fig. 5 is a schematic perspective view of a clamping frame according to the present invention.
Fig. 6 is a schematic perspective view of a splitting assembly according to the present invention.
Fig. 7 is a schematic perspective view of a collection assembly according to the present invention.
FIG. 8 is a diagram showing the connection between the collection assembly and a portion of the components of the present invention.
Fig. 9 is a schematic perspective view of a feeding assembly according to the present invention.
Fig. 10 is an exploded view of a portion of the components of the feed assembly of the present invention.
FIG. 11 is a diagram showing the connection between a transposition assembly and a part of the present invention.
FIG. 12 is a schematic view of a portion of a transpose assembly of the present invention.
Fig. 13 is a schematic perspective view of a rotary assembly and a closure assembly according to the present invention.
FIG. 14 is a diagram showing the connection between parts of the closure assembly and the storage frame according to the present invention.
Wherein the above figures include the following reference numerals: 1. base, 2, support, 3, operation box, 31, cover plate, 4, discharge frame, 5, sliding frame, 6, elastic piece, 7, rotation shaft, 8, supporting plate, 9, connecting plate, 91, fixing plate, 10, clamping frame, 11, splitting component, 111, contact rod, 112, cylinder, 113, first connecting frame, 114, slide bar, 115, wedge block, 116, compression spring, 117, return spring, 118, baffle plate, 12, collecting component, 121, extrusion block, 122, discharge hole, 123, screen bar, 13, feeding component, 131, second connecting frame, 132, storage frame, 133, baffle frame, 134, shaft lever, 135, roller, 136, receiving groove, 14, transposition component, 141, connecting block, 142, push rod, 143, pressing frame, 144, torsion spring, 145, transparent plate, 15, rotating component, 151, one-way clutch, 152, connecting column, 153, chute, 154, connecting rod, 16, closing component, 161, inserting frame, 162, positioning plate, 163, rubber bar.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings.
Description of the preferred embodiments 1
The utility model provides a but paediatrics is with equipment of getting it filled of split capsule, please look over fig. 1-8, including base 1, support 2, control box 3, apron 31, ejection of compact frame 4, carriage 5, elastic component 6, pivot 7, layer board 8, connecting plate 9, fixed plate 91, clamping frame 10, split subassembly 11 and collection subassembly 12, the top bilateral symmetry of base 1 is equipped with support 2, there is control box 3 through bolted connection between two support 2 tops, there is ejection of compact frame 4 bottom of control box 3 through welded connection, the top of control box 3 is connected with apron 31, open at the middle part of apron 31 has the feed inlet, the equal slidingtype of left and right sides of control box 3 runs through there is carriage 5, two carriage 5 are bilateral symmetry setting, all be connected with elastic component 6 between the inner wall of two carriage 5 and control box 3, one side that two carriage 5 are close to each other is all rotated and is run through pivot 7, all have 8 through welded connection on two pivot 7, two 8 are bilateral symmetry setting, two 8 are the appearance of two 8, the top of control box 3 have the top of two support plates, two support plates are all opened at the appearance of bearing plate 8, two support plates are all have two arc connection plates 9, two 13 are 13, two side-shaped connection plates are all connected with two support plates are 13, two side-shaped connection plates are all connected with two support plates are 13, 9, the top of the top plate is connected with two 13, and two support plates are 13.
As shown in fig. 6, the splitting assembly 11 includes a contact rod 111, an air cylinder 112, a first connecting frame 113, a sliding rod 114, a wedge block 115, a compression spring 116, a return spring 117 and a baffle 118, wherein the return spring 117 is connected between the two clamping frames 10 on the same side and the fixed plate 91 on the same side, the contact rod 111 is symmetrically arranged on the two sides of the two clamping frames 10, the sliding rod 114 is symmetrically arranged on the left and right sides of the operating box 3, the two sliding rods 114 are symmetrically arranged in a left-right manner, the sliding rod 114 is positioned above the sliding frame 5, one ends of the two sliding rods 114 close to each other are respectively connected with the wedge block 115 through welding, one ends of the two sliding rods 114 far away from each other are respectively connected with the baffle 118 through welding, the two sliding rods 114 are respectively sleeved on the two sliding rods 114, the wedge blocks 115 on the same side are respectively matched with the two contact rods 111 on the same side, the air cylinder 112 is respectively arranged on the rear sides of the left and right walls of the operating box 3, the two sliding rods 114 are symmetrically arranged on the left and right sides, the two sliding rods 114 are symmetrically connected with the two sliding frames 113, and the first sliding frames are respectively connected with the two sliding frames 113 in a left-right symmetrically arranged.
As shown in fig. 7, the collecting assembly 12 includes an extrusion block 121 and a screen bar 123, wherein one sides of the tops of the two wedge blocks 115, which are close to each other, are all connected with the extrusion block 121 by welding, the two extrusion blocks 121 are arranged in a bilateral symmetry manner, the two extrusion blocks 121 respectively pass through the two connecting plates 9 in a sliding manner, the screen bar 123 is connected to the lower side of the inner part of the operation box 3, and the discharging hole 122 is formed in the lower part of the front wall of the operation box 3.
Firstly, a worker places a collecting container below a discharging frame 4, then places a capsule between two supporting plates 8 through a feed inlet of a cover plate 31, at first, a compression spring 116 is in an original state, a return spring 117 is in a stretching state, an operator starts two-side air cylinders 112 to stretch, telescopic members of the two-side air cylinders 112 drive first connecting frames 113 on the telescopic members to move in opposite directions respectively, when the first connecting frames 113 are contacted with blocking pieces 118, then the two first connecting frames 113 push the two blocking pieces 118 to move away from each other respectively, the two blocking pieces 118 drive the two sliding rods 114 to move in opposite directions respectively, the two sliding rods 114 drive wedge blocks 115 and extrusion blocks 121 on the sliding rods respectively to move together, the compression spring 116 compresses, and under the action of return of the return spring 117, the reset spring 117 drives the two contact rods 111 and the two clamping frames 10 on the two sides to move towards the direction of approaching each other and clamp the capsule, then the stop cylinder 112 stretches, initially, the elastic member 6 is in an original state, the worker drives the rotating shafts 7 on the two sides to move towards the direction of separating by the sliding frames 5 on the two sides, the supporting plates 8 and the two clamping frames 10 on the two sides move towards the direction of separating by the rotating shafts 7 on the two sides, then the capsule can be split into two halves, the elastic member 6 compresses, then the worker drives the supporting plates 8 and the two clamping frames 10 on the two sides and the two contact rods 111 to rotate downwards by taking the rotating shafts 7 as circle centers by the rotating shafts 7 on the two sides respectively, then under the reset action of the reset spring 117, the reset spring 117 on the two sides drives the two clamping frames 10 on the same side to move towards the direction of approaching each other again for a distance, then the cylinder 112 on the two sides is started to stretch, the telescopic members of the two side cylinders 112 respectively drive the first connecting frames 113 on the two side cylinders to move in opposite directions, then the two first connecting frames 113 respectively drive the two baffle plates 118 to move away from each other, the two baffle plates 118 respectively drive the two slide bars 114 to move in opposite directions, the two slide bars 114 respectively drive the wedge-shaped blocks 115 and the extrusion blocks 121 on the two slide bars to move together, the compression springs 116 continue to compress, then the extrusion blocks 121 on the two sides extrude the two clamping frames 10 on the two sides to one side away from each other through the two contact rods 111 on the two sides, so that the two clamping frames 10 on the two sides release capsules again, at the moment, the two side cylinders 112 are stopped from extending, then the capsules and the medicine powder move downwards along the supporting plate 8, the capsules drop on the screen bars 123 and slide out of the operating box 3 through the discharge holes, simultaneously, the medicine powder falls downwards to the collecting container along the discharging frame 4 through the screen bars 123, then the staff drives the two side supporting plates 8, the two clamping frames 10 and the two contact rods 111 to rotate upwards to reset by taking the rotating shafts 7 as circle centers through the rotating shafts 7 on the two sides, then the two sliding frames 5 are loosened, under the reset action of the elastic pieces 6, the two side elastic pieces 6 respectively drive the two side supporting plates 8, the two clamping frames 10 and the two contact rods 111 to move to reset in the approaching direction through the two side sliding frames 5 and the rotating shafts 7 on the two sides, when the two contact rods 111 on the two sides move in the approaching direction, under the reset action of the reset springs 117, the reset springs 117 drive the two clamping frames 10 on the two sides to move in the approaching direction, then the two side air cylinders 112 are started to shrink, the telescopic pieces of the air cylinders 112 respectively drive the two first connecting frames 113 to move to reset in the approaching direction, then, under the action of the reset springs 117, the reset springs 117 on the two sides respectively move and reset in the direction of approaching through the sliding rods 114 and the baffle plates 118 on the two sides, the two sliding rods 114 respectively drive the wedge-shaped blocks 115 and the extrusion blocks 121 on the two sliding rods to move and reset in the direction of approaching together, the wedge-shaped blocks 115 on the same side respectively extrude and reset the two clamping frames 10 on the same side in the direction of separating from each other through the two contact rods 111 on the two sides, and finally the air cylinders 112 on the two sides are closed, so that the capsules can be split and the powder can be taken out.
Description of the preferred embodiments 2
On the basis of the specific embodiment 1, please see fig. 1, fig. 2, fig. 9 and fig. 10, further include a feeding assembly 13, the feeding assembly 13 includes a second connecting frame 131, a storage frame 132, a baffle frame 133, a shaft 134 and a roller 135, the upper side of the operation box 3 is connected with two second connecting frames 131 through bolts, the two second connecting frames 131 are arranged in a bilateral symmetry manner, the top of the two second connecting frames 131 is connected with the storage frame 132 through bolts, the bottom of the storage frame 132 is connected with the baffle frame 133 through welding, the baffle frame 133 is located above a feed inlet of the cover plate 31, the shaft 134 is rotatably connected with the shaft 134 between the lower sides of the two second connecting frames 131, the shaft 134 is located inside the baffle frame 133, the roller 135 is rotatably connected with the roller 135, and both the upper side and the lower side of the roller 135 are provided with receiving grooves 136.
Please see fig. 1, 13 and 14, still including the closure assembly 16, the closure assembly 16 is including inserting frame 161, locating plate 162 and rubber strip 163, and the outer wall top of storage frame 132 is connected with rubber strip 163, and the top joint of storage frame 132 has the frame 161 of inserting that makes with transparent plastic material, and the left and right sides of inserting frame 161 all has locating plate 162 through bolted connection, and two locating plates 162 are bilateral symmetry setting, and two locating plates 162 all contact the cooperation with rubber strip 163.
When the capsules are required to be split and taken, firstly, the inserting frame 161 is pulled upwards, the inserting frame 161 drives the two positioning plates 162 to move upwards, the positioning plates 162 are separated from the rubber strips 163, then the capsules are continuously placed into the storage frame 132, the capsules can fall into the storage frame 132 and fall into the receiving grooves 136 on the upper side of the rollers 135, after the capsules in the storage frame 132 are filled, the capsules are stopped to be added, the two positioning plates 162 are inserted into the positions through the inserting frame 161, then the two positioning plates 162 are contacted with the rubber strips 163 to be matched, so that air can be prevented from flowing into the storage frame 132, the capsules in the storage frame 132 are softened, then the rollers 135 are rotated clockwise by 180 degrees through the shaft rods 134, then the capsules in the upper side receiving grooves 136 can pass through the feed inlets of the cover plate 31 and fall onto the two supporting plates 8, and at the same time, the capsules in the lowest side of the storage frame 132 can fall into the receiving grooves 136 on the lower side of the rollers 135, so that the manpower consumption of workers is reduced continuously.
Description of the preferred embodiment 3
On the basis of embodiment 2, please see fig. 1, 8, 9, 11 and 12, further comprising a transposition assembly 14, wherein the transposition assembly 14 comprises a connecting block 141, a push rod 142, a pressing frame 143, a torsion spring 144 and a transparent plate 145, the front side of the operation box 3 is connected with the transparent plate 145 made of transparent glass material, the front wall and the rear wall of the operation box 3 are both connected with two pressing frames 143, the two pressing frames 143 of the same wall are arranged in a bilateral symmetry manner, the front side and the rear side of the two rotating shafts 7 are both connected with connecting blocks 141, the connecting blocks 141 are in contact fit with the pressing frames 143, the torsion spring 144 is connected between the connecting blocks 141 and the sliding frames 5, the front wall and the rear wall of the two wedge blocks 115 are both connected with the push rods 142 through welding, and the two push rods 142 on the two wedge blocks 115 are arranged in a bilateral symmetry manner.
Initially, the torsion spring 144 is in a deformed state, the two side cylinders 112 are started to extend, the telescopic members of the two side cylinders 112 respectively drive the first connecting frames 113 on the two side cylinders to move in a direction away from each other, then the two first connecting frames 113 respectively drive the two baffle plates 118 to move in a direction away from each other, the two baffle plates 118 respectively drive the two slide bars 114 to move in opposite directions, the two slide bars 114 respectively drive the wedge blocks 115 and the two push bars 142 on the two slide bars along with the two slide bars, the compression spring 116 compresses, then the two push bars 142 on the two sides respectively drive the sliding frames 5 and the connecting blocks 141 on the two sides and the torsion spring 144 to move in a direction away from each other, then the pressing frames 143 on the two sides respectively disengage from one side away from each other with the connecting blocks 141 on the two sides, then the cylinder 112 is stopped from extending, and under the reset action of the torsion spring 144, the torsion springs 144 on the two sides drive the supporting plates 8 on the two sides to rotate downwards by taking the rotating shaft 7 as the center of a circle through the connecting blocks 141 on the two sides and the rotating shaft 7 respectively, so that the supporting plates 8 can rotate by themselves without manually rotating the supporting plates, then, the two side air cylinders 112 are started to shrink, the telescopic members of the two side air cylinders 112 drive the two side first connecting frames 113 to move and reset in the direction approaching to each other respectively, under the reset action of the reset springs 117, the reset springs 117 on the two sides move and reset in the direction approaching to each other respectively through the sliding rods 114 and the baffle plates 118 on the two sliding rods 114, the wedge blocks 115 and the two push rods 142 on the two sliding rods 114 are driven to move in the direction approaching to each other respectively, the sliding frames 5 are not pushed by the two push rods 142 on the two sides any more, under the reset action of the elastic members 6, the elastic members 6 drive the connecting blocks 141 and the torsion springs 144 to move and reset in the direction approaching to each other respectively through the sliding frames 5 on the elastic members 6 on the two sides, then, the pressing frames 143 on the two sides are in contact fit with the connecting blocks 141 on the two sides, so that the connecting blocks 141 on the two sides and the rotating shaft 7 drive the supporting plates 8 on the two sides to rotate upwards to reset by taking the rotating shaft 7 as the center of a circle, and simultaneously the torsion springs 144 deform, and finally the air cylinders 112 on the two sides are closed.
Description of the preferred embodiments 4
On the basis of embodiment 3, please see fig. 1 and 13, further including rotating assembly 15, rotating assembly 15 is including one-way clutch 151, spliced pole 152 and connecting rod 154, and one-way clutch 151 is all installed to the left and right sides of axostylus axostyle 134, all is connected with spliced pole 152 on two one-way clutches 151, and two spliced poles 152 are bilateral symmetry setting, and two spliced pole 152 outer walls all open has spout 153, and the top of two first link 113 all is connected with connecting rod 154, and the top of two connecting rod 154 contacts the cooperation with two spouts 153 respectively.
Firstly, the two side cylinders 112 are started to extend, the telescopic members of the two side cylinders 112 respectively drive the first connecting frames 113 and the connecting rods 154 on the two sides to move in the direction away from each other, so that the connecting rods 154 on the two sides respectively drive the connecting columns 152 on the two sides to rotate anticlockwise through the sliding grooves 153, at the moment, because the one-way clutch 151 does not rotate, the shaft rod 134 does not rotate, after the two connecting columns 152 rotate anticlockwise by 180 degrees, the first connecting frames 113 on the two sides respectively drive the sliding rods 114 on the two sides to move in the direction away from each other through the baffle plates 118 on the two sides, so that the connecting columns 152 on the two sides are respectively disengaged from the sliding grooves 153 on the connecting columns 152 on the two sides, then the telescopic members of the two side cylinders 112 are started to shrink, the first connecting frames 113 and the connecting rods 154 on the two sides are respectively driven to move in the direction close to each other, then the connecting rods 154 on two sides are respectively contacted and matched with the sliding grooves 153 on the connecting columns 152 on two sides, under the action of the moving of the connecting rods 154 on two sides towards the direction close to each other, the connecting rods 154 on two sides respectively drive the connecting columns 152 on two sides to rotate clockwise, the two connecting rods 154 respectively drive the shaft rod 134 and the roller 135 to rotate 180 degrees clockwise through the one-way clutch 151, then the capsules in the upper side connecting groove 136 pass through the feed inlet of the cover plate 31 and drop down onto the two supporting plates 8, and meanwhile, the lowermost capsules in the storage frame 132 drop down into the receiving groove 136 on the lower side of the roller 135, so that the capsules can drop onto the supporting plates 8 without rotating the roller 135 by a worker.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted equally without departing from the spirit and scope of the technical solution of the present invention.