阅读说明：本技术 一种具有废料收纳机构的桌面式3d打印机 (Desktop formula 3D printer with waste material receiving mechanism ) 是由 谭振国 李松涛 刘莎 俱秉杰 丁帅 赵渊 邱永超 于 2020-07-02 设计创作，主要内容包括：本发明公开了一种具有废料收纳机构的桌面式3D打印机,涉及D打印机技术领域,具体为一种具有废料收纳机构的桌面式3D打印机,包括料箱和主直线电机,所述料箱的下方固定连接有顶板,且顶板的下方固定连接有支撑杆,所述支撑杆的右侧固定连接有限位块,且限位块的下方固定连接有导杆,所述主直线电机位于导杆的外壁,且主直线电机的左侧固定连接有升降台,所述升降台的前端固定连接有滑杆,且滑杆的前端活动连接有副直线电机,所述副直线电机的内部活动连接有支架。该具有废料收纳机构的桌面式3D打印机,设计新颖,结构简单、操作方便快捷、加工方便、打印精度高、应用范围广、同时可实现全方位打印作业,满足客户的使用需求,值得推广使用。(The invention discloses a desktop type 3D printer with a waste storage mechanism, and relates to the technical field of D printers, in particular to a desktop type 3D printer with a waste storage mechanism. This desktop formula 3D printer with waste material receiving mechanism, the modern design, simple structure, convenient operation are swift, processing is convenient, print the precision high, the range of application is wide, can realize all-round printing operation simultaneously, satisfy customer's user demand, are worth using widely.)

1. The utility model provides a desktop formula 3D printer with waste material receiving mechanism, includes workbin (1) and main linear electric motor (6), its characterized in that: the lower part of the material box (1) is fixedly connected with a top plate (2), the lower part of the top plate (2) is fixedly connected with a support rod (3), the right side of the support rod (3) is fixedly connected with a limiting block (4), the lower part of the limiting block (4) is fixedly connected with a guide rod (5), a main linear motor (6) is positioned on the outer wall of the guide rod (5), the left side of the main linear motor (6) is fixedly connected with a lifting table (7), the front end of the lifting table (7) is fixedly connected with a slide rod (8), the front end of the slide rod (8) is movably connected with an auxiliary linear motor (9), the inner part of the auxiliary linear motor (9) is movably connected with a support (10), the left side of the support (10) is fixedly connected with a main motor (11), the lower part of the main motor (11) is fixedly connected with a rotating rod (12), and a key groove, a connecting plate (14) is movably connected below the rotating rod (12), a spray pipe (15) is fixedly connected below the connecting plate (14), a connecting pipe (16) is vertically arranged below the spray pipe (15), a spray head (17) is fixedly connected below the connecting pipe (16), a fixing plate (18) is vertically arranged below the spray head (17), a push plate (19) is movably connected at the front end of the fixing plate (18), a brush (20) is fixedly connected below the push plate (19), a rotary table (21) is vertically arranged below the brush (20), a rotary table (22) is movably connected below the rotary table (21), a printing platform (23) is vertically arranged below the rotary table (22), a mounting seat (24) is movably connected inside the printing platform (23), and an auxiliary motor (25) is fixedly connected above the mounting seat (24), the utility model discloses a printing machine, including vice motor (25), top fixedly connected with transfer line (26), and the top fixedly connected with connecting rod (27) of transfer line (26), the spacing pad of right side fixedly connected with (28) of print platform (23), and the below of print platform (23) has perpendicularly installed transverse shaft (29), the front end fixedly connected with longitudinal axis (30) of transverse shaft (29), and the below of longitudinal axis (30) has perpendicularly installed collecting box (31), the inside swing joint of collecting box (31) has drawer (32), and the equal fixedly connected with slider (33) in the left and right sides of drawer (32), spout (34) have been seted up on the right side of slider (33).

2. The desktop 3D printer with waste storage mechanism of claim 1, wherein: workbin (1) is the equidistance form and distributes in the upper surface of roof (2), and bracing piece (3) are the symmetry and settle in the lower surface of roof (2).

3. The desktop 3D printer with waste storage mechanism of claim 1, wherein: the limiting block (4) is horizontally arranged on the left side of the supporting rod (3), and the guide rod (5) is vertically arranged on the lower surface of the limiting block (4).

4. The desktop 3D printer with waste storage mechanism of claim 1, wherein: the lifting platform (7) and the guide rod (5) form a sliding structure through the main linear motor (6), and the left side of the main linear motor (6) is tightly attached to the right side of the lifting platform (7).

5. The desktop 3D printer with waste storage mechanism of claim 1, wherein: the support (10) is symmetrically arranged on the left side and the right side of the main motor (11), and the main motor (11) and the connecting plate (14) form a detachable structure through the key groove (13).

6. The desktop 3D printer with waste storage mechanism of claim 1, wherein: main motor (11) constitute revolution mechanic through bull stick (12) and connecting plate (14), and spray tube (15) are the equidistance and describe the lower surface that distributes in connecting plate (14).

7. The desktop 3D printer with waste storage mechanism of claim 1, wherein: the lower surface of the push plate (19) is tightly attached to the upper surface of the brush (20), and the central axis of the brush (20) coincides with the central axis of the rotary table (21).

8. The desktop 3D printer with waste storage mechanism of claim 1, wherein: the connecting rod (27) and the rotary table (21) form a detachable structure through the rotary table (22), and the connecting rod (27) is vertically arranged on the lower surface of the rotary table (22).

9. The desktop 3D printer with waste storage mechanism of claim 1, wherein: the auxiliary motor (25) and the printing platform (23) form a detachable structure through the mounting seat (24), and the auxiliary motor (25) and the connecting rod (27) form a rotating structure through the transmission rod (26).

10. The desktop 3D printer with waste storage mechanism of claim 1, wherein: the sliding blocks (33) are symmetrically arranged on the left side and the right side of the drawer (32), and the drawer (32) and the collecting box (31) form a sliding structure through the sliding blocks (33).

Technical Field

The invention relates to the technical field of 3D printers, in particular to a desktop type 3D printer with a waste material storage mechanism.

Background

One of the 3D printing, i.e., rapid prototyping, is a technology for constructing an object by printing layer by layer using an adhesive material such as powdered metal or plastic based on a digital model file, and 3D printing is generally implemented by using a digital technical material printer, and is generally used for manufacturing models in the fields of mold manufacturing, industrial design, etc., and then gradually used for direct manufacturing of some products.

But current desktop formula 3D printer, only one shower nozzle, and every shower nozzle only corresponds a printing material, do not possess multiple shower nozzle, make and print too single, the limitation is great, can not realize that multiple colored 3D prints, current desktop formula 3D printer simultaneously does not possess the garbage collection structure, make the waste material after printing in time clear up, cause the jam of device, thereby the efficiency of printing is influenced, can not fine satisfy shortcomings such as people's user demand.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a desktop type 3D printer with a waste material storage mechanism, and solves the problems that the background technology does not comprise various spray heads, is too single in printing, does not comprise a waste material cleaning structure and the like.

In order to achieve the purpose, the invention is realized by the following technical scheme: a desktop type 3D printer with a waste material containing mechanism comprises a material box and a main linear motor, wherein a top plate is fixedly connected below the material box, a support rod is fixedly connected below the top plate, a limiting block is fixedly connected to the right side of the support rod, a guide rod is fixedly connected below the limiting block, the main linear motor is positioned on the outer wall of the guide rod, a lifting table is fixedly connected to the left side of the main linear motor, a slide rod is fixedly connected to the front end of the lifting table, an auxiliary linear motor is movably connected to the front end of the slide rod, a support is movably connected to the inside of the auxiliary linear motor, a main motor is fixedly connected to the left side of the support, a rotating rod is fixedly connected to the lower side of the main motor, a key groove is formed in the rotating rod, a connecting plate is movably connected to the lower side of the rotating rod, a spray pipe is fixedly connected to the lower side of the connecting, a nozzle is fixedly connected below the connecting pipe, a fixed plate is vertically arranged below the nozzle, the front end of the fixed plate is movably connected with a push plate, a hairbrush is fixedly connected below the push plate, a rotary table is vertically arranged below the hairbrush, a rotary table is movably connected below the rotary table, a printing platform is vertically arranged below the rotary table, a mounting seat is movably connected inside the printing platform, an auxiliary motor is fixedly connected above the mounting seat, a transmission rod is fixedly connected above the auxiliary motor, a connecting rod is fixedly connected above the transmission rod, a limiting pad is fixedly connected on the right side of the printing platform, a transverse shaft is vertically arranged below the printing platform, a longitudinal shaft is fixedly connected at the front end of the transverse shaft, a collecting box is vertically arranged below the longitudinal shaft, and a drawer is movably connected inside the collecting box, and the left side and the right side of the drawer are fixedly connected with sliding blocks, and the right side of each sliding block is provided with a sliding groove.

Optionally, the workbin is the equidistance form and distributes in the upper surface of roof, and the bracing piece is the symmetry form and settles in the lower surface of roof.

Optionally, the limiting block is horizontally disposed on the left side of the supporting rod, and the guide rod is vertically disposed on the lower surface of the limiting block.

Optionally, the lifting platform forms a sliding structure with the guide rod through the main linear motor, and the left side of the main linear motor is tightly attached to the right side of the lifting platform.

Optionally, the brackets are symmetrically arranged on the left side and the right side of the main motor, and the main motor and the connecting plate form a detachable structure through a key slot.

Optionally, the main motor forms revolution mechanic through bull stick and connecting plate, and the spray tube is the equidistance form and distributes in the lower surface of connecting plate.

Optionally, the lower surface of the push plate is tightly attached to the upper surface of the brush, and the central axis of the brush coincides with the central axis of the rotary table.

Optionally, the connecting rod forms a detachable structure with the turntable through the turntable, and the connecting rod is vertically arranged on the lower surface of the turntable.

Optionally, the auxiliary motor forms a detachable structure with the printing platform through the mounting seat, and the auxiliary motor forms a rotating structure with the connecting rod through the transmission rod.

Optionally, the sliding blocks are symmetrically arranged on the left side and the right side of the drawer, and the drawer and the collecting box form a sliding structure through the sliding blocks.

The invention provides a desktop type 3D printer with a waste material storage mechanism, which has the following beneficial effects:

1. this desktop formula 3D printer with waste material receiving mechanism through the setting of six workbins for the device can carry out multiple colored printing, links to each other because of the workbin with six conveying pipes of carrying the resin liquid of different colors, can realize the multicolor 3D of device and print, and the user can change different colors according to the demand of printing simultaneously, still can mix different colors and print, has improved the practicality and the range of application of device.

2. This desktop formula 3D printer with waste material receiving mechanism, through the guide arm, main linear electric motor, the elevating platform, mutually support between slide bar and the vice linear electric motor, when the user need carry out 3D and print, the user can start main linear electric motor, two main linear electric motor downstream, it carries out 3D and prints the operation to drive the vice linear electric motor on the elevating platform, vice linear electric motor can be on the slide bar horizontal slip simultaneously, the variety that the device printed has been realized, make the device can carry out all-round printing, the application range of device has been improved.

3. This desktop formula 3D printer with waste material receiving mechanism, through main motor, the bull stick, the keyway, the connecting plate, the spray tube, cooperation setting between connecting pipe and the shower nozzle, make the device carry out 3D and print the in-process, when needing to carry out pigment change, the user's accessible starts main motor, main motor rotates and drives the spray tube rotation on bull stick and the connecting plate, the spray tube will aim at the connecting pipe of below after rotatory to specific position, through carrying pigment to the connecting pipe, the shower nozzle under the rethread connecting pipe realizes 3D and prints, thereby realize six switching of printing resin liquid, avoided printing pigment because of loaded down with trivial details change, and reduced the printing efficiency of device, make the device can satisfy more printing demands of user, improve the diversity when device prints.

4. This desktop formula 3D printer with waste material receiving mechanism, through the revolving stage, the carousel, print platform, vice motor, the transfer line, the connecting rod, spacing pad, mutually support between horizontal axle and the longitudinal axis, when the device need print the operation, the adjustable print platform of user, make print platform along horizontal axle reciprocating motion, realize the X axle's of device print the operation, simultaneously adjustable print platform, make print platform along longitudinal axis reciprocating motion, realize the Y axle's of device print the operation, the user can start vice motor simultaneously, vice motor rotates and drives the transfer line, connecting rod and revolving stage are rotatory, make the revolving stage can realize the degree and rotate, with this fineness when improving the print the operation of device, indirect improvement the efficiency of device during operation.

5. This desktop formula 3D printer with waste material receiving mechanism, through the fixed plate, the push pedal, the brush, the collecting box, mutually support between drawer and the slider, make device 3D print job accomplish the back, resin liquid waste material can remain on the revolving stage, if not in time the clearance can cause the jam on the revolving stage, cause printing device's printing efficiency to descend easily, the user can external push motor, push motor is through push pedal and the brush that promotes on the revolving stage, sweep the clearance to remaining liquid waste material on the revolving stage, the waste material will be in sweeping into the drawer that the collecting box was established through the through-hole on the revolving stage, the user's accessible is twitched the drawer and is carried out the clearance processing with the waste material.

Drawings

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

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a left side view of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 5 is an enlarged view of the structure at B in FIG. 1 according to the present invention.

In the figure: 1. a material box; 2. a top plate; 3. a support bar; 4. a limiting block; 5. a guide bar; 6. a primary linear motor; 7. a lifting platform; 8. a slide bar; 9. a secondary linear motor; 10. a support; 11. a main motor; 12. a rotating rod; 13. a keyway; 14. a connecting plate; 15. a nozzle; 16. a connecting pipe; 17. a spray head; 18. a fixing plate; 19. pushing the plate; 20. a brush; 21. a turntable; 22. a turntable; 23. a printing platform; 24. a mounting seat; 25. a secondary motor; 26. a transmission rod; 27. a connecting rod; 28. a limiting pad; 29. a transverse axis; 30. a longitudinal axis; 31. a collection box; 32. a drawer; 33. a slider; 34. a chute.

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.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 5, the present invention provides a technical solution: a desktop type 3D printer with a waste material accommodating mechanism comprises a material box 1 and a main linear motor 6, wherein a top plate 2 is fixedly connected below the material box 1, supporting rods 3 are fixedly connected below the top plate 2, the material box 1 is equidistantly distributed on the upper surface of the top plate 2, the supporting rods 3 are symmetrically arranged on the lower surface of the top plate 2, the device can perform multi-color printing through the arrangement of six material boxes 1, the material box 1 is connected with six feeding pipes for conveying resin liquid with different colors, the multi-color 3D printing of the device can be realized, meanwhile, a user can replace different colors according to the printing requirements, different colors can be mixed and printed, the practicability and the application range of the device are improved, a limit block 4 is fixedly connected on the right side of the supporting rod 3, a guide rod 5 is fixedly connected below the limit block 4, the limit block 4 is horizontally arranged on the left side of the supporting rod 3, the guide rod 5 is vertically arranged on the lower surface of the limiting block 4, and through the mutual matching of the guide rod 5, the main linear motors 6, the lifting platform 7, the sliding rods 8 and the auxiliary linear motors 9, when a user needs to perform 3D printing, the user can start the main linear motors 6, the two main linear motors 6 move downwards to drive the auxiliary linear motors 9 on the lifting platform 7 to perform 3D printing operation, and meanwhile, the auxiliary linear motors 9 can slide left and right on the sliding rods 8, so that the printing diversity of the device is realized, the device can perform all-dimensional printing, and the use range of the device is enlarged;

the main linear motor 6 is positioned on the outer wall of the guide rod 5, the left side of the main linear motor 6 is fixedly connected with a lifting platform 7, the lifting platform 7 forms a sliding structure with the guide rod 5 through the main linear motor 6, the left side of the main linear motor 6 is tightly attached to the right side of the lifting platform 7, the front end of the lifting platform 7 is fixedly connected with a sliding rod 8, the front end of the sliding rod 8 is movably connected with an auxiliary linear motor 9, the inner part of the auxiliary linear motor 9 is movably connected with a support 10, the left side of the support 10 is fixedly connected with a main motor 11, the support 10 is symmetrically arranged on the left side and the right side of the main motor 11, the main motor 11 forms a detachable structure with a connecting plate 14 through a key groove 13, the main motor 11, a rotating rod 12, the key groove 13, the connecting plate 14, a spray pipe 15, a connecting pipe 16 and a spray head 17 are arranged, the user can start the main motor 11, the main motor 11 rotates to drive the rotating rod 12 and the spray pipe 15 on the connecting plate 14 to rotate, the spray pipe 15 rotates to a specific position and then is aligned to the connecting pipe 16 below, the pigment is conveyed to the connecting pipe 16, 3D printing is realized through the spray head 17 below the connecting pipe 16, so that switching of six kinds of printing resin liquid is realized, the printing efficiency of the device is reduced due to complicated replacement of the printing pigment is avoided, the device can meet more printing requirements of users, the diversity of the device during printing is improved, the main motor 11 forms a rotating structure through the rotating rod 12 and the connecting plate 14, the spray pipes 15 are equidistantly distributed on the lower surface of the connecting plate 14, the rotating rod 12 is fixedly connected below the main motor 11, the key groove 13 is formed in the rotating rod 12, the connecting plate 14 is movably connected below the rotating rod 12, and the spray pipe 15 is fixedly connected below the connecting plate 14, a connecting pipe 16 is vertically arranged below the spraying pipe 15, a nozzle 17 is fixedly connected below the connecting pipe 16, a fixing plate 18 is vertically arranged below the nozzle 17, a push plate 19 is movably connected at the front end of the fixing plate 18, the lower surface of the push plate 19 is tightly attached to the upper surface of the brush 20, the central axis of the brush 20 is coincident with the central axis of the rotary table 21, and the fixing plate 18, the push plate 19, the brush 20, the collecting box 31, the drawer 32 and the sliding block 33 are mutually matched, so that after the 3D printing operation of the device is completed, resin liquid waste materials can be remained on the rotary table 21, if the resin liquid waste materials are not cleaned in time, the blockage on the rotary table 21 can easily cause the reduction of the printing efficiency of the printing device, a user can externally connect a pushing motor, the pushing motor can sweep and clean the liquid waste materials remained on the rotary table 21 by pushing the push plate 19 and the brush 20 on the rotary table 21, the waste materials can be, a user can clean waste materials by drawing the drawer 32, the rotary table 21, the rotary table 22, the printing platform 23, the auxiliary motor 25, the transmission rod 26, the connecting rod 27, the limiting pad 28, the transverse shaft 29 and the longitudinal shaft 30 are matched with each other, when the device needs to perform printing operation, the user can adjust the printing platform 23, make the printing platform 23 reciprocate along the transverse shaft 29 to realize the printing operation of the X shaft of the device, and can adjust the printing platform 23 to make the printing platform 23 reciprocate along the longitudinal shaft 30 to realize the printing operation of the Y shaft of the device, meanwhile, the user can start the auxiliary motor 25 and the auxiliary motor 25 to rotate to drive the transmission rod 26, the connecting rod 27 and the rotary table 21 to rotate, so that the rotary table 21 can realize 360-degree rotation, the fineness of the device during the printing operation is improved, and the working efficiency of the device is indirectly improved;

a brush 20 is fixedly connected below the push plate 19, a rotary table 21 is vertically arranged below the brush 20, a rotary table 22 is movably connected below the rotary table 21, a printing platform 23 is vertically arranged below the rotary table 22, a mounting seat 24 is movably connected inside the printing platform 23, an auxiliary motor 25 is fixedly connected above the mounting seat 24, the auxiliary motor 25 and the printing platform 23 form a detachable structure through the mounting seat 24, the auxiliary motor 25 and a connecting rod 27 form a rotating structure through the driving rod 26, a driving rod 26 is fixedly connected above the auxiliary motor 25, a connecting rod 27 is fixedly connected above the driving rod 26, the connecting rod 27 and the rotary table 21 form a detachable structure through the rotary table 22, the connecting rod 27 is vertically arranged on the lower surface of the rotary table 22, a limiting pad 28 is fixedly connected on the right side of the printing platform 23, and a transverse shaft 29 is vertically arranged below the printing platform 23, the front end fixedly connected with longitudinal axis 30 of transverse shaft 29, and longitudinal axis 30's below has installed perpendicularly collecting box 31, and the inside swing joint of collecting box 31 has drawer 32, and the equal fixedly connected with slider 33 in the left and right sides of drawer 32, and slider 33 is the symmetry and settles in the left and right sides of drawer 32, and drawer 32 passes through slider 33 and collecting box 31 constitution sliding structure, and spout 34 has been seted up on slider 33's right side.

To sum up, in the desktop type 3D printer with the waste material storage mechanism, when in use, a user firstly welds the two support rods 3 onto the collection box 31 by welding, and simultaneously welds the transverse shaft 29 and the longitudinal shaft 30 onto the collection box 31, after welding, the user mounts the six material boxes 1 onto the top plate 2, and simultaneously welds the top plate 2 onto the two support rods 3, after all the components are mounted, the user can operate the device, firstly, when the user needs to perform 3D printing, the user can start the main linear motor 6 (model: KSD130S), the two main linear motors 6 move downwards to drive the auxiliary linear motor 9 (model: KSD130S) on the lifting table 7 to perform 3D printing operation, and simultaneously, the auxiliary linear motor 9 can slide left and right on the slide rod 8, so that the device can perform printing diversity, and can perform all-directional printing, when the device is used for 3D printing, when pigment needs to be replaced, a user can start the main motor 11 (type: YBBP), the main motor 11 rotates to drive the rotating rod 12 and the spray pipe 15 on the connecting plate 14 to rotate, the spray pipe 15 rotates to a specific position and then is aligned with the connecting pipe 16 below, the pigment is conveyed to the connecting pipe 16, and then 3D printing is realized through the spray head 17 below the connecting pipe 16, so that switching of six printing resin liquids is realized, the printing efficiency of the device is reduced due to complicated replacement of the printing pigment, meanwhile, multi-color 3D printing of the device can be realized due to the fact that the material box 1 is connected with six feeding pipes for conveying resin liquids with different colors, the user can replace different colors according to the printing requirements, the different colors can be mixed for printing, meanwhile, the user can adjust the printing platform 23 to enable the printing platform 23 to reciprocate along the transverse shaft 29, the X-axis printing operation of the device is realized, meanwhile, the printing platform 23 can be adjusted, so that the printing platform 23 reciprocates along the longitudinal axis 30, the Y-axis printing operation of the device is realized, meanwhile, a user can start the auxiliary motor 25 (type: YBBP), the auxiliary motor 25 rotates to drive the transmission rod 26, the connecting rod 27 and the rotary table 21 to rotate, so that the rotary table 21 can rotate by 360 degrees, the fineness of the printing operation of the device is improved, after the 3D printing operation of the device is completed, resin liquid waste materials can remain on the rotary table 21, if the resin liquid waste materials are not cleaned in time, the rotary table 21 can be blocked, the printing efficiency of the printing device is easily reduced, the user can be externally connected with a pushing motor, the pushing motor can sweep and clean the liquid waste materials remaining on the rotary table 21 by pushing the push plate 19 and the brush 20 on the rotary table 21, the waste materials can be swept into the drawer 32 of the, the user's accessible is twitched drawer 32 and is cleared up the waste material and handle, and the device modern design, simple structure, convenient operation are swift, processing is convenient, print the precision height, the range of application is wide, can realize all-round printing operation, satisfy customer's user demand, are worth using widely.

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.