阅读说明：本技术 一种食品加工用小鲫鱼压平深度去鳞设备及方法 (Small crucian flattening and deep descaling equipment and method for food processing ) 是由 杜瑞青 于 2018-06-28 设计创作，主要内容包括：本发明公开了一种食品加工用小鲫鱼压平深度去鳞设备及方法,包括加工箱,所述加工箱的顶部设置有缓存装置,所述加工箱内腔的中部设置有输送装置,所述加工箱内腔的底部设置有分离箱,所述加工箱内腔的底部设置有废水箱,所述加工箱内腔的中部设置有整平装置,该食品加工用小鲫鱼压平深度去鳞设备,采用先压平在进行去除鱼鳞的方式,一方面能够对体积相对较小的鱼类进行处理,同时去除鱼鳞方式使得鱼身有鳞片的位置全部暴露,提高了去鳞片工作效率的同时还保证了去鳞片的工作质量,整平装置在进行挤压固定鱼身的时候,给与鱼身施加一定程度的压力,一方面能够将鱼肉挤压的更加紧实,另一方面还以将鱼骨和与此进行碾断,增加产品口感。(The invention discloses a device and a method for flattening and deeply descaling small crucian carps for food processing, which comprises a processing box, wherein the top of the processing box is provided with a cache device, the middle part of the inner cavity of the processing box is provided with a conveying device, the bottom of the inner cavity of the processing box is provided with a separating box, the bottom of the inner cavity of the processing box is provided with a waste water box, the middle part of the inner cavity of the processing box is provided with a leveling device, the device for flattening and deeply descaling small crucian carps for food processing adopts a mode of flattening and descaling, on one hand, the device can treat fishes with relatively small volume, and on the other hand, the fish scale removing mode enables the positions of fish bodies with scales to be completely exposed, thereby improving the working efficiency of the scales and ensuring the working quality of the scales, and the leveling device can apply certain pressure to the fish bodies when the fish bodies are squeezed and fixed, on the other hand, the fish bodies can be, on the other hand, the fishbone is broken to increase the taste of the product.)

1. The utility model provides a little crucian equipment of deeply scaling that flattens for food processing, includes processing case (1), its characterized in that: the top of the processing box (1) is provided with a cache device (2), the middle part of the inner cavity of the processing box (1) is provided with a conveying device (3), the bottom of the inner cavity of the processing box (1) is provided with a separation box (4), the bottom of the inner cavity of the processing box (1) is provided with a waste water box (5), and the middle part of the inner cavity of the processing box (1) is provided with a leveling device (6);

the buffer device (2) comprises a buffer box (21), the bottom of the buffer box (21) is lapped at the top of the processing box (1), a material distributing pipe (22) is arranged on the front face of the middle part of the bottom of the buffer box (21), a material distributing shaft (23) is connected to the middle part of the front face of the material distributing pipe (22) in a penetrating mode, a material distributing plate (24) is sleeved on the part, located in the inner cavity of the material distributing pipe (22), of the material distributing shaft (23), the bottom of the material distributing pipe (22) penetrates through the processing box (1) and extends to the inner cavity of the processing box (1), a drainage device (25) is arranged on the left side of the material distributing pipe (22), a driving wheel (26) is sleeved on the front face of the outer side of the material distributing shaft (23), a belt (27) is sleeved on the outer side of the driving wheel (26), and buffer grooves (28;

the buffer groove (28) is a fish-shaped groove, the length of the buffer groove (28) is 5-7cm, and a blade groove (29) is formed in the buffer groove (28);

the drainage device (25) comprises a drainage box (2501), the left bottom of the drainage box (2501) is connected with a driving shaft (2502) in a penetrating manner, translation gears (2503) are arranged on two sides of the outer side of the driving shaft (2502), translation tracks (2504) are arranged in the middle of two sides of the inner wall of the drainage box (2501), translation sliders (2505) are movably clamped in inner cavities of the translation tracks (2504), movable side plates (2506) are welded on one sides, away from the translation tracks (2504), of the translation sliders (2505), dissecting shafts (2507) are connected in a penetrating manner in the middle of the left side of the movable side plates (2506), cutting knives (2508) are arranged in the middle of the outer side of the dissecting shafts (2507), transmission racks (2509) are arranged at the bottoms of the movable side plates at equal intervals (2506), a driving motor (2510) is fixedly connected to the left side of the driving shaft (2502) through an output shaft, a return spring (2512) is arranged on the back of the movable side plate (2506);

the right side of the drainage box (2501) is communicated with the left side of the material distributing pipe (22), the translation gear (2503) is a semicircular gear, the translation gear (2503) is meshed with the transmission rack (2509), and the back of the reset spring (2512) is fixedly connected with the inner wall of the drainage box (2501);

leveling device (6) are including running through flattening axle (601) of processing case (1) positive both sides, flattening cylinder (602) have been cup jointed in the outside of flattening axle (601), the outside equidistance of flattening cylinder (602) is provided with toper arch (604), both sides be provided with between flattening axle (601) and descale axle (605), descale cylinder (603) have been cup jointed in the middle part in descale axle (605) outside, separator box (4) are the toper case.

2. The device for flattening and deeply descaling small crucian carp for food processing according to claim 1, is characterized in that: the conveying device (3) comprises a conveying shaft (301) penetrating through the front face of the processing box (1), a conveying roller (302) is arranged on the part, located in the inner cavity of the processing box (1), of the conveying shaft (301), a conveying belt (303) is sleeved on the outer side of the conveying roller (302), and water leakage holes (304) are formed in the top of the conveying belt (303) at equal intervals.

3. The device for flattening and deeply descaling small crucian carp for food processing according to claim 1, is characterized in that: the top through connection of processing case (1) has water pipe (101), the inner chamber that processing case (1) and extended to processing case (1) is run through to the bottom of water pipe (101), the bottom of water pipe (101) is provided with shower head (102).

4. The device for flattening and deeply descaling small crucian carp for food processing according to claim 1, is characterized in that: the bottom of the separation plate (2511) is an arc-shaped plate, and the bottom of the separation plate (2511) is lapped on the right side of the top of the conveying belt (303).

5. The device and the method for flattening and deeply descaling crucian carp for food processing according to any one of claims 1 to 4, wherein the device comprises: when the fish body removing device is used, a fish body which is subjected to head removal is poured into an inner cavity of the buffer device (2), the fish body flows into an inner cavity of the distributing pipe (22) through the buffer box (21), an external motor drives the distributing shaft (23) to rotate after being powered on, the distributing shaft (23) drives the distributing plate (24) to rotate, a buffer groove (28) arranged on the distributing plate (24) moves to be perpendicular to the distributing pipe (22), the fish body falls into the inner cavity of the buffer groove (28), the fish body moves to an inner cavity of the drainage box (2501) along with the rotation of the distributing plate (24), meanwhile, the driving motor (2510) rotates to drive the driving shaft (2502) to rotate, the driving shaft (2502) drives the translation gear (2503) to rotate, the translation gear (2503) drives the movable side plate (2506) to move through the translation rack (2509), and the movable side plate (2506) moves in an inner cavity of the translation track (2504) through the translation sliding block (2505), the movable side plate (2506) drives the dissecting shaft (2507) and the cutting knife (2508) to move, after the cutting knife (2508) is powered on, the dissecting shaft (2507) drives the cutting knife to rotate, the cutting knife (2508) gradually moves towards the inner cavity of the blade groove (29) along with the continuous movement of the movable side plate (2506), the cutting knife (2508) carries out deep cutting treatment on the fish body, after the translation gear (2503) and the translation rack (2509) are separated from each other, the return spring (2512) contracts to drive the movable side plate (2506) to move backwards to draw the cutting knife (2508) out of the inner cavity of the blade groove (29), the material distribution plate (24) continues to rotate, the fish body is poured into the inner cavity of the drainage box, the cutting opening of the fish body is clamped on the separation plate (2511), the fish body moves downwards along the separation plate (2511) until the fish body moves onto the conveying belt (303), and the fish body is moved to the position right below the leveling device (6) along, leveling cylinder (602) initiative constantly extrudees the fish body and fixes it on conveyer belt (303), when the fish body moves to the below of descaling cylinder (603), the descaling cylinder rotates and scrapes the processing of getting the fish scale on surface, when handling the second half section, the fish body moves to the below of leveling cylinder (602) of doing and is extruded fixedly, when descale, external water source is put through to water pipe (101), rivers wash the scale through shower head (102) spraying on conveyer belt (303), the scale that drops falls into on separator box (4) along with rivers, the scale is remained on separator box (4), sewage then flows into waste water tank (5) inner chamber and handles.

Technical Field

The invention relates to the technical field of food processing, in particular to equipment and a method for flattening and deeply descaling small crucian carps for food processing.

Background

The fish meat is rich in protein, has low relative fat content, is mostly composed of unsaturated fatty acid, has high nutritive value and is a food for people to love.

The edible mode to fish also is diversified in daily life, and the fish that catches also is not of uniform size, when carrying out fish processing, need scrape the fish scale and get, in fish food processing industry, the fish scale of big fish is got rid of comparatively simple and conveniently, and the less fish that adopts in little fish and other food is because its volume is less, just comparatively inconvenient when going to the fish scale, especially in vacuum packaging's food, the fish scale is got rid of unclean and just can appear the commodity quality problem.

The invention discloses an automatic fish scale scraping machine (patent No. CN102986816B), which comprises a fish box, a fish body overturning and adjusting mechanism and a scale brush driving mechanism, wherein an artificial solid fish body is firstly put into a fish mouth, a hook tip penetrates through a lower jaw to extend out, a fish head is hooked and locked, the fish body is horizontally placed on a fish-shaped fish body fixing plate, and a fish tail is fixed on a tail part through a fish tail clamp, so that the device disclosed by the patent has some defects when in use: still need the manual work will with fix and take, become loaded down with trivial details in comparison with traditional manual operation, the manual operation step is more in whole flow moreover, and the fishy smell is still very easy to be infected with on the human body to food processing, the efficiency of handling fish is still comparatively low, and this equipment is inconvenient to the less fish of volume and operates.

For example, although the chinese patent discloses a fish scale processing machine (patent No. CN106889163A), in which the processing machine includes a frame, a transmission motor, a transmission frame, a rotary drum and a rotary drum motor, when the fish scale processing machine is used, the fish scales on the fish body are removed by the cooperation between the descaling rollers and the descaling teeth on the inner wall of the rotary drum, the patent can process the fish scales well, but the processing on the belly and the fins of the fish still has some defects, and the fish scales cannot be completely removed.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a small crucian flattening and deep scaling device for food processing, which solves the problems that the scale processing of fish products is not thorough enough and the automation degree is not high enough.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a little crucian degree of depth descaler that flattens for food processing, includes the processing case, the top of processing case is provided with memory device, the middle part of processing incasement chamber is provided with conveyor, the bottom of processing incasement chamber is provided with the separator box, the bottom of processing incasement chamber is provided with the waste water tank, the middle part of processing incasement chamber is provided with leveling device.

Preferably, the buffer memory device includes the buffer memory case, the bottom overlap joint of buffer memory case is at the top of processing case, the front at buffer memory bottom middle part is provided with the branch material pipe, the positive middle part through connection of branch material pipe has the branch material axle, the part that the branch material axle is located branch material pipe inner chamber has cup jointed the branch charging tray, the bottom of branch material pipe runs through the processing case and extends to the inner chamber of processing case, the left side of branch material pipe is provided with drainage device, the front in the branch material axle outside has cup jointed the drive wheel, the belt has been cup jointed in the outside of drive wheel, the buffer memory groove has been seted up to the outside equidistance of branch charging tray.

Preferably, the cache groove is a fish-shaped groove, the length of the cache groove is-cm, and the cache groove is provided with a blade groove.

Preferably, the drainage device includes the drainage case, the left bottom through connection drive shaft of drainage case, the both sides in the drive shaft outside all are provided with the translation gear, the middle part of drainage incasement wall both sides is provided with the translation track, the orbital inner chamber activity joint of translation has the translation slider, the orbital one side welding of translation is kept away from to the translation slider has movable curb plate, the left middle part through connection of movable curb plate has the dissection axle, the middle part of dissecting the axle outside is provided with the cutting knife, the bottom equidistance of movable curb plate is provided with the driving rack, output shaft fixedly connected with driving motor is passed through in the left side of drive shaft, the bottom of drainage incasement wall both sides is provided with the division board, the back of movable curb.

Preferably, the right side of the drainage box is communicated with the left side of the material distributing pipe, the translation gear is a semicircular gear, the translation gear is meshed with the transmission rack, and the back of the reset spring is fixedly connected with the inner wall of the drainage box.

Preferably, the conveying device comprises a conveying shaft penetrating through the front face of the processing box, a conveying roller is arranged on the part, located in the inner cavity of the processing box, of the conveying shaft, a conveying belt is sleeved on the outer side of the conveying roller, and water leakage holes are formed in the top of the conveying belt at equal intervals.

Preferably, the leveling device comprises leveling shafts penetrating through two sides of the front face of the processing box, leveling rollers are sleeved on the outer sides of the leveling shafts, conical protrusions are arranged on the outer sides of the leveling rollers at equal intervals, a descaling shaft is arranged between the leveling shafts on two sides, the descaling rollers are sleeved in the middle of the outer sides of the descaling shafts, and the separation box is a conical box.

Preferably, the top through connection of processing case has the water pipe, the bottom of water pipe runs through the processing case and extends to the inner chamber of processing case, the bottom of water pipe is provided with the shower head.

Preferably, the bottom of the partition plate is an arc-shaped plate, and the bottom of the partition plate is lapped on the right side of the top of the conveying belt.

(III) advantageous effects

The invention provides a device for flattening and deeply descaling small crucian carps for food processing. The method has the following beneficial effects:

(1) this little crucian degree of depth of flattening equipment of scaling for food processing adopts the mode of flattening earlier and getting rid of the fish scale, can handle the fish that the volume is less relatively on the one hand, gets rid of the fish scale mode simultaneously and makes the position that the fish body has the scale all expose, has still guaranteed the operating quality who scales when having improved scale work efficiency.

(2) This little crucian equipment of removing scale of degree of depth that flattens for food processing, leveling device's main function lies in expandes the processing of flattening with the fish through handling, can also play the effect of letting the dried product of little fish expand in advance and stereotype when conveniently clearing up the fish scale better.

(3) This little crucian equipment of deeply scaling that flattens for food processing, the primary action of buffer box is less than for disposable processing more and provides and deposits the place, can also play the fish body simultaneously and turn to the effect of orderly motion preliminary treatment before handling.

(4) This little crucian equipment of scaling of degree of depth that flattens for food processing, the leading action of cutting the blade lies in splitting the processing with the fish, and the fish after splitting can expose the tiny scale at positions such as fish maw for scrape get cleaner, cut apart the blade simultaneously and played and carried out the orderly removal with the fish and avoided the feed inlet to take place the effect of blockking up.

(5) This little crucian equipment of removing scale of degree of depth that flattens for food processing adopts two leveling device's design, and one of them main action lies in rolling the flattening with the fish body, and another effect lies in extrudeing the fish body fixedly, avoids scaling device reverse acting force to cause the condition emergence of the scale piece thoroughly inadequately of skidding.

(6) This little crucian for food processing degree of depth of flattening equipment of scaling, leveling device when extrudeing fixed fish body, gives the fish body and applys certain degree pressure, can be with the extruded compacter of flesh of fish on the one hand, on the other hand still in order to break with this fish bone, increase product taste.

(7) This little crucian equipment of scaling of degree of depth that flattens for food processing, spray set's still main action lies in will be attached to the scale on the fish body and wash, and the pressure that adopts the design that sprays on the one hand can increase rivers can wash the scale of adhesion, and on the other hand can the waste of the water resource of minimizing.

(8) This little crucian equipment of deeply scaling that flattens for food processing, the rose box that processing case inner chamber set up mainly act on lie in separating scale and water, and main aim at water recovery resource and avoid sewage to cause environmental pollution.

(9) This little crucian equipment of scaling of degree of depth that flattens for food processing, rose box adopt toper design primary action lie in the scale that will worry about utilizes the impact force of water and self action of gravity to the both sides motion collection, avoids the scale to pile up and causes the apopore to block up.

Drawings

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

FIG. 2 is a schematic view of the drainage device according to the present invention;

FIG. 3 is a schematic diagram of a cache apparatus according to the present invention;

FIG. 4 is a side view of a cache box of the present invention;

FIG. 5 is a top view of the dispensing tray of the present invention;

FIG. 6 is a top view of the drainage box of the present invention;

FIG. 7 is a schematic view of the flattening apparatus of the present invention;

fig. 8 is a top view of the conveyor belt of the present invention.

In the figure: 1 processing box, 101 water pipe, 102 spray header, 2 buffer device, 21 buffer box, 22 material distribution pipe, 23 material distribution shaft, 24 material distribution disc, 25 drainage device, 2501 drainage box, 2502 driving shaft, 2503 translation gear, 2504 translation track, 2505 translation slider, 2506 movable side plate, 2507 dissection shaft, 2508 cutting knife, 2509 transmission rack, 2510 driving motor, 2511 separation plate, 2512 reset spring, 26 transmission wheel, 27 belt, 28 buffer groove, 29 blade groove, 3 conveying device, 301 conveying shaft, 302 conveying roller, 303 conveying belt, 304 water leakage hole, 4 separation box, 5 waste water box, 6 leveling device, 601 leveling shaft, 602 leveling roller, 603 descaling roller, 604 conical bulge and 605 descaling shaft.

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.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-8, the present invention provides a technical solution: the utility model provides a little crucian degree of depth descaler that flattens for food processing, including processing case 1, the top through connection of processing case 1 has water pipe 101, the bottom of water pipe 101 runs through processing case 1 and extends to the inner chamber of processing case 1, the bottom of water pipe 101 is provided with shower head 102, the top of processing case 1 is provided with memory device 2, the middle part of processing case 1 inner chamber is provided with conveyor 3, the bottom of processing case 1 inner chamber is provided with separator 4, the bottom of processing case 1 inner chamber is provided with waste water tank 5, the middle part of processing case 1 inner chamber is provided with leveling device 6.

The buffer device 2 comprises a buffer box 21, the bottom of the buffer box 21 is lapped at the top of the processing box 1, a material distributing pipe 22 is arranged on the front face of the middle part of the bottom of the buffer box 21, a material distributing shaft 23 is connected to the middle part of the front face of the material distributing pipe 22 in a penetrating mode, a material distributing disc 24 is sleeved on the part, located in the inner cavity of the material distributing pipe 22, of the material distributing pipe 23, the bottom of the material distributing pipe 22 penetrates through the processing box 1 and extends to the inner cavity of the processing box 1, a drainage device 25 is arranged on the left side of the material distributing pipe 22, a transmission wheel 26 is sleeved on the front face of the outer side of the material distributing shaft 23, a belt 27 is sleeved on the outer side of the transmission wheel 26, buffer grooves 28 are equidistantly formed in the outer side of the material distributing disc.

The drainage device 25 comprises a drainage box 2501, the right side of the drainage box 2501 is communicated with the left side of the material distribution pipe 22, a translation gear 2503 is a semicircular gear, the translation gear 2503 is meshed with a transmission rack 2509, the back of a reset spring 2512 is fixedly connected with the inner wall of the drainage box 2501, the bottom of the left side of the drainage box 2501 is connected with a driving shaft 2502 in a penetrating way, the translation gears 2503 are arranged on the two sides of the outer side of the driving shaft 2502, a translation track 2504 is arranged in the middle of the two sides of the inner wall of the drainage box 2501, a translation slide block 2505 is movably clamped in the inner cavity of the translation track 2504, a movable side plate 2506 is welded on one side of the translation slide block 2505, which is far away from the translation track 2504, an dissecting shaft 2507 is connected in the middle of the left side of the movable side plate 2506 in a penetrating way, a cutting knife 250, division plates 2511 are arranged at the bottoms of two sides of the inner wall of the drainage box 2501, the bottom of the division plate 2511 is an arc-shaped plate, the bottom of the division plate 2511 is lapped at the right side of the top of the conveying belt 303, and a return spring 2512 is arranged on the back of the movable side plate 2506.

The conveying device 3 comprises a conveying shaft 301 penetrating through the front surface of the processing box 1, a conveying roller 302 is arranged on the part, located in the inner cavity of the processing box 1, of the conveying shaft 301, a conveying belt 303 is sleeved on the outer side of the conveying roller 302, and water leakage holes 304 are formed in the top of the conveying belt 303 at equal intervals.

The leveling device 6 comprises leveling shafts 601 penetrating through two sides of the front surface of the processing box 1, leveling rollers 602 are sleeved on the outer sides of the leveling shafts 601, conical protrusions 604 are arranged on the outer sides of the leveling rollers 602 at equal intervals, a descaling shaft 605 is arranged between the leveling shafts 601 on two sides, the descaling rollers 603 are sleeved in the middle of the outer sides of the descaling shafts 605, and the separating box 4 is a conical box.

The working principle is as follows: the fish body without the head is poured into the inner cavity of the cache device 2, the fish body flows into the inner cavity of the distributing pipe 22 through the cache box 21, after the power is switched on by an external motor, the distributing shaft 23 is driven to rotate, the distributing shaft 23 drives the distributing plate 24 to rotate, when the cache groove 28 arranged on the distributing plate 24 moves to be perpendicular to the distributing pipe 22, the fish body falls into the inner cavity of the cache groove 28, along with the rotation of the distributing plate 24, the fish body is moved to the inner cavity of the drainage box 2501, meanwhile, the driving motor 2510 rotates to drive the driving shaft 2502 to rotate, the driving shaft 2502 drives the translation gear 2503 to rotate, the translation gear 2503 drives the movable side plate 2506 to move through the translation rack 2509, the movable side plate 2506 moves in the inner cavity of the translation rail 2504 through the translation slider 2505, the movable side plate 2506 drives the dissecting shaft 2507 and the 2508 to move, after the cutting knife 2508 is switched on, the power, the dissecting shaft 250, when the fish body is cut 2508 and gradually moves towards the inner cavity of the blade groove 29, the cutting knife 2508 carries out deep cutting treatment on the fish body, after the translation gear 2503 and the translation rack 2509 are separated from each other, the return spring 2512 contracts to drive the movable side plate 2506 to move backwards to draw the cutting knife 2508 out of the inner cavity of the blade groove 29, the material distribution disc 24 continues to rotate to pour the fish body into the inner cavity of the drainage box, the cut opening of the fish body is clamped on the separation plate 2511 and moves downwards along the separation plate 2511 until the fish body moves onto the conveying belt 303, the fish body moves to the position right below the leveling device 6 along with the movement of the conveying belt 303, the leveling roller 602 actively and continuously extrudes the fish body to fix the fish body on the conveying belt 303, when the fish body moves to the position below the descaling roller 603, the descaling roller rotates to scrape scales on the surface, and when the rear half section is treated, the fish body moves to the position below the leveling, when the scale is removed, the water pipe 101 is connected with an external water source, water flow is sprayed on the conveying belt 303 through the spray header 102 to wash the scale, the falling scale falls onto the separation box 4 along with the water flow, the scale remains on the separation box 4, and sewage flows into the inner cavity of the waste water box 5 to be treated.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.