阅读说明：本技术 一种可转动调向的风电轴承保持架加工用工装 (Rotatable wind-powered electricity generation bearing holder processing of transferring to is with frock ) 是由 易阳 于 2021-08-06 设计创作，主要内容包括：本发明涉及一种可转动调向的风电轴承保持架加工用工装,包括装体和上夹机构,所述装体的中部开设有中心槽口,且中心槽口的内侧端安装有内固机构,所述上夹机构安装于装体的中部上端,所述装体的上端内部穿设有中心滑块以及调位丝杆,且装体的上端左右两侧均固定有侧连机构,所述侧连机构包括连盘条、弹簧柱、柱连座和座内辊,所述连盘条的侧端安置有弹簧柱,且弹簧柱的端部固定有柱连座,所述柱连座的端壁安置有座内辊,所述装体的左右两端底部均安装有基组机构。本发明的有益效果是：该可转动调向的风电轴承保持架加工用工装,通过固定座与中心槽口之间的活动,可调节固定座的位置,将固定座从本体内部滑出,此时,可使用固定座以及块转盘。(The invention relates to a rotatable direction-adjustable tool for machining a wind power bearing retainer, which comprises an assembly body and an upper clamping mechanism, wherein a central notch is formed in the middle of the assembly body, an internal fixing mechanism is installed at the inner side end of the central notch, the upper clamping mechanism is installed at the upper end of the middle of the assembly body, a central sliding block and a position adjusting screw rod are arranged in the upper end of the assembly body in a penetrating mode, side connecting mechanisms are fixed on the left side and the right side of the upper end of the assembly body respectively, each side connecting mechanism comprises a connecting wire rod, a spring column, a column connecting seat and an inner seat roller, a spring column is arranged at the side end of the connecting wire rod, a column connecting seat is fixed at the end part of the spring column, the inner seat rollers are arranged on the end wall of the column connecting seat, and base group mechanisms are installed at the bottoms of the left end and the right end of the assembly body. The invention has the beneficial effects that: this wind-powered electricity generation bearing holder processing of rotatable accent is with frock through the activity between fixing base and the central notch, and the position of adjustable fixing base follows the inside roll-off of body with the fixing base, at this moment, can use fixing base and piece carousel.)

1. The utility model provides a wind-powered electricity generation bearing holder processing of rotatable accent is with frock, includes the dress body (1) and goes up and press from both sides mechanism (9), its characterized in that: the middle part of the body (1) is provided with a central notch (2), an inner fixing mechanism (3) is installed at the inner side end of the central notch (2), the upper clamping mechanism (9) is installed at the upper end of the middle part of the body (1), a central slider (16) and a position adjusting screw rod (31) are arranged inside the upper end of the body (1) in a penetrating mode, side connecting mechanisms (17) are fixed to the left side and the right side of the upper end of the body (1), each side connecting mechanism (17) comprises a connecting wire rod (18), a spring column (19), a column connecting seat (20) and an inner seat roller (21), a spring column (19) is arranged at the side end of the connecting wire rod (18), a column connecting seat (20) is fixed to the end portion of the spring column (19), an inner seat roller (21) is arranged on the end wall of the column connecting seat (20), base assembling mechanisms (22) are installed at the bottoms of the left end and the right end of the body (1), and each base assembling mechanism (22) comprises a base (23), Seat slide (24), seat inner frame strip (25), wear even card strip (26), strip even board (27), board buckle (28) and detain hole (29), and the inboard end wall of base (23) has seted up seat slide (24), the tip of seat slide (24) is settled there is seat inner frame strip (25), the side of base (23) is fixed with wears even card strip (26), and the side of wearing even card strip (26) settles and have strip even board (27), board buckle (28) is installed to the end wall of strip even board (27), and the end of the side of installation body (1) is close to the end wall of board buckle (28) and has seted up detain hole (29), locking screw (30) are worn to be equipped with in the bottom middle part of base group mechanism (22).

2. The tool for machining the wind power bearing retainer capable of rotating and adjusting the direction as claimed in claim 1, is characterized in that: the internal fixing mechanism (3) comprises a fixed seat (4), a fixed disc (5), disc channels (6), disc blocks (7) and a block rotary disc (8), the fixed disc (5) is specified at the side end of the fixed seat (4), the disc channels (6) are formed in the end wall of the inner side of the fixed disc (5), the disc blocks (7) are arranged on the end wall of the disc channels (6), and the block rotary disc (8) is arranged in the middle of the disc blocks (7).

3. The tool for machining the wind power bearing retainer capable of rotating and adjusting the direction as claimed in claim 2, is characterized in that: the fixed seat (4) and the fixed disc (5) are fixedly connected with each other, and the fixed disc (5) and the disc block (7) form a sliding structure through the disc channel (6).

4. The tool for machining the wind power bearing retainer capable of rotating and adjusting the direction as claimed in claim 2, is characterized in that: the disc blocks (7) and the block turntables (8) are movably connected with each other, and the disc blocks (7) and the block turntables (8) are distributed at equal intervals relative to the end walls of the fixed discs (5).

5. The tool for machining the wind power bearing retainer capable of rotating and adjusting the direction as claimed in claim 1, is characterized in that: the upper clamping mechanism (9) comprises a clamping seat (10), a seat side wheel (11), a roller (12), a rotary column (13), a column middle cavity (14) and a sponge block (15), the side end of the clamping seat (10) is provided with the seat side wheel (11), the roller (12) and the rotary column (13) are arranged in the middle of the clamping seat (10) in a penetrating mode, and the end wall of the rotary column (13) is provided with the column middle cavity (14) and the sponge block (15).

6. The tool for machining the wind power bearing retainer capable of rotating and adjusting the direction as claimed in claim 5, wherein the tool comprises: the clamping seat (10) and the seat side wheels (11) are movably connected with each other, and the seat side wheels (11) are symmetrically distributed around the center of the clamping seat (10).

7. The tool for machining the wind power bearing retainer capable of rotating and adjusting the direction as claimed in claim 5, wherein the tool comprises: the clamping seat (10) is in threaded connection with the rotary column (13), the rotary column (13) is bonded with the sponge block (15), and meanwhile the clamping seat (10) and the roller (12) are movably connected with each other.

8. The tool for machining the wind power bearing retainer capable of rotating and adjusting the direction as claimed in claim 1, is characterized in that: the connecting wire rod (18) and the column connecting seat (20) form an elastic structure through a spring column (19), and the bottom of the column connecting seat (20) forms a rotating structure through arranging a rotating shaft and an inner seat roller (21).

9. The tool for machining the wind power bearing retainer capable of rotating and adjusting the direction as claimed in claim 1, is characterized in that: the base (23) forms a sliding structure with the seat inner frame strip (25) through the seat slide way (24), the base (23) forms a sliding structure with the body (1) through the penetrating and connecting clamping strip (26) and the strip connecting plate (27), and the strip connecting plate (27) forms a clamping structure with the body (1) through the plate buckle (28) and the buckle hole (29).

Technical Field

The invention relates to the technical field of wind power bearings, in particular to a tool capable of rotating and adjusting direction for machining a wind power bearing retainer.

Background

The wind power bearing is a special bearing, the service environment is severe, the maintenance cost is high, the service life is required to be long, a bearing retainer is required to be used when the bearing retainer is processed, and a tool is required to be used when the retainer is processed.

The existing tool is poor in adjusting performance when being arranged due to the fact that a good chassis supporting and fixing structure is not designed when being used for processing, and cannot be reasonably arranged on a proper position.

Disclosure of Invention

The invention aims to provide a tool for processing a wind power bearing retainer capable of rotating and adjusting direction, which aims to solve the problems that the existing tool in the prior art has poor adjusting performance and cannot be reasonably arranged at a proper position when being arranged due to the fact that a good chassis supporting and fixing structure is not designed when being processed and used, and meanwhile, the tool body cannot be steered to adjust and process when being used and cannot be well cleaned due to the fact that a good rolling connection structure is not designed.

In order to achieve the purpose, the invention provides the following technical scheme: a tool for machining a wind power bearing retainer capable of rotating and adjusting direction comprises an assembly and an upper clamping mechanism, wherein a central notch is formed in the middle of the assembly, an internal fixing mechanism is installed at the inner side end of the central notch, the upper clamping mechanism is installed at the upper end of the middle of the assembly, a central slider and a position adjusting screw rod are arranged in the upper end of the assembly in a penetrating mode, side connecting mechanisms are fixed to the left side and the right side of the upper end of the assembly respectively and comprise a connecting rod, a spring column, a column connecting seat and an inner seat roller, a spring column is arranged at the side end of the connecting rod, a column connecting seat is fixed to the end portion of the spring column, the inner seat roller is arranged on the end wall of the column connecting seat, base group mechanisms are installed at the bottoms of the left end and the right end of the assembly respectively and comprise a base, a seat slideway, an inner seat frame strip, a penetrating and connecting clamping strip, a strip connecting plate, a plate buckle and a buckle hole, and a seat slideway is formed in the inner end wall of the base, the tip of seat slide settles and has a seat inner frame strip, the side of base is fixed with wears to link the card strip, and wears to link the side of card strip and settle and have a strip even board, the end wall of strip even board is installed the board and is detained, and the side of the dress body is close to the end wall of board knot and has seted up the knot hole, the bottom middle part of base group mechanism is worn to be equipped with locking screw.

Preferably, the internal fixing mechanism comprises a fixed seat, a fixed disc, a disc channel, disc blocks and a block rotary disc, the fixed disc is arranged at the side end of the fixed seat, the disc channel is arranged on the end wall of the inner side of the fixed disc, the disc blocks are arranged on the end wall of the disc channel, and the block rotary disc is arranged in the middle of the disc blocks.

Preferably, the fixed seat and the fixed disc are fixedly connected with each other, and the fixed disc and the disc block form a sliding structure through the disc channel.

Preferably, the disk blocks and the block turntables are movably connected with each other, and the disk blocks and the block turntables are distributed at equal intervals relative to the end walls of the fixed disks.

Preferably, the upper clamping mechanism comprises a clamping seat, seat side wheels, rollers, rotary columns, a column middle cavity and sponge blocks, the seat side wheels are arranged at the side ends of the clamping seat, the rollers and the rotary columns are arranged in the middle of the clamping seat in a penetrating mode, and the column middle cavity and the sponge blocks are arranged on the end walls of the rotary columns.

Preferably, the clamping seat and the seat side wheels are movably connected with each other, and the seat side wheels are symmetrically distributed around the center of the clamping seat.

Preferably, the clamping seat is in threaded connection with the rotary column, the rotary column is bonded with the sponge block, and the clamping seat and the roller are movably connected with each other.

Preferably, the connecting rod and the column connecting seat form an elastic structure through a spring column, and the bottom of the column connecting seat and the inner roller of the seat form a rotating structure through a rotating shaft.

Preferably, the base passes through a seat slide and constitutes sliding construction with seat inside casing strip, and the base constitutes sliding construction through wearing even card strip, strip even board and dress body, and the strip even board passes through the board and detains, detains the hole and constitutes block structure with the dress body moreover.

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

1. the invention can adjust the position of the fixed seat through the movement between the fixed seat and the central notch, and the fixed seat can slide out of the body, and at the moment, the fixed seat and the block turntable can be used.

2. According to the invention, the device such as screw assembly welding and polishing can be arranged through the threaded hole at the end part of the block turntable in a penetrating manner, so that the wind power bearing retainer carried at the top of the body can be conveniently processed, meanwhile, the disc block can slide through the disc channel and be adjusted to a proper position, then, the disc block and the block turntable can be rotated, the orientation of the block turntable can be adjusted in a rotating manner, and the flexible processing and use of the wind power bearing retainer are facilitated.

3. According to the invention, the central sliding block can be rotatably adjusted through the rotary position-adjusting lead screw, the position of the central sliding block and the position of the upper clamping mechanism at the top end of the central sliding block are changed, so that the upper clamping mechanism can be conveniently and better controlled, one end wall of the wind power bearing retainer can be carried in the middle of the clamping seat, meanwhile, the seat side wheel and the roller wheel can roll, so that rolling and rotation adjustment can be conveniently carried out between the end wall of the retainer and the clamping seat, and after the retainer rotates, direction adjustment can be conveniently and better carried out, and convenient and fast processing can be carried out.

4. According to the invention, the rotary column is rotated to rotatably adjust the position of the rotary column, when the rotary column moves upwards, the bottom end wall of the retainer can be contacted, the sponge block can clean the end wall of the retainer, and meanwhile, dry or cleaning powder can be added into the middle cavity of the column.

5. According to the invention, the column connecting seat can be elastically adjusted through the elasticity of the spring column, the column connecting seat is made to elastically move towards the outer side of the wire connecting rod, when the wind power bearing retainer is carried in the middle of the clamping seat, the column connecting seat is made to elastically move outwards, the seat inner roller is made to elastically move outwards and tightly attached to the end wall of the retainer, the end wall of the retainer is cleaned, the cleanness and the dirt are conveniently kept, the dirt is removed, meanwhile, lubricating oil can be added into the seat inner frame strip, the lubricating oil is immersed into the penetrating connecting clamping strip made of sponge material, and the outer wall of the retainer at the end part of the clamping seat is lubricated through the penetrating connecting clamping strip.

Drawings

FIG. 1 is a schematic structural diagram of a tool for machining a wind power bearing retainer, which is capable of rotating and adjusting direction, according to the invention;

FIG. 2 is a schematic perspective view of an upper clamping mechanism of the tool for machining the wind power bearing retainer, which is capable of rotating and adjusting the direction;

FIG. 3 is a schematic perspective view of a base assembly mechanism of the tool for machining the wind power bearing retainer, which is capable of rotating and adjusting the direction of rotation, according to the invention;

FIG. 4 is a schematic perspective view of an internal fixation mechanism of the tool for processing the wind power bearing retainer, which is capable of rotating and adjusting the direction;

fig. 5 is a schematic perspective view of a side connecting mechanism of the tool for processing the wind power bearing retainer, which is capable of rotating and adjusting the direction.

In the figure: 1. assembling; 2. a central slot opening; 3. an internal fixation mechanism; 4. a fixed seat; 5. fixing the disc; 6. coiling; 7. a disk block; 8. a block carousel; 9. an upper clamping mechanism; 10. a holder; 11. a seat side wheel; 12. a roller; 13. rotating the column; 14. a column-in-column cavity; 15. a sponge block; 16. a central slider; 17. a side connection mechanism; 18. connecting the wire rod; 19. a spring post; 20. a column connecting seat; 21. an inner roller; 22. a base set mechanism; 23. a base; 24. a seat slide; 25. a seat inner frame strip; 26. penetrating and connecting the clamping strips; 27. connecting the plates with strips; 28. buckling the plate; 29. buckling holes; 30. locking screws; 31. and (5) adjusting a lead screw.

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. 1-5, the present invention provides a technical solution: a tool for processing a wind power bearing retainer capable of rotating and adjusting direction comprises a body 1, a central notch 2, an internal fixing mechanism 3, a fixed seat 4, a fixed disc 5, a disc channel 6, a disc block 7, a block rotary disc 8, an upper clamping mechanism 9, a clamping seat 10, seat side wheels 11, a roller wheel 12, a rotary column 13, a column middle cavity 14, a sponge block 15, a central slider 16, a side connecting mechanism 17, a disc connecting strip 18, a spring column 19, a column connecting seat 20, a seat inner roller 21, a base group mechanism 22, a base 23, a seat slideway 24, a seat inner frame strip 25, a penetrating and connecting clamping strip 26, a strip connecting plate 27, a plate buckle 28, a buckle hole 29, a locking screw 30 and an adjusting lead screw 31, wherein the central notch 2 is formed in the middle part of the body 1, the internal fixing mechanism 3 is arranged at the inner side end of the central notch 2, the upper clamping mechanism 9 is arranged at the upper end of the body 1, a central slider 16 and the adjusting lead screw 31 are arranged in the inner part of the body 1, and the left side connecting mechanism and the right side connecting mechanism 17 are fixed at the upper end of the body 1, the side connecting mechanism 17 comprises a wire rod connecting 18, a spring column 19, a column connecting seat 20 and a seat inner roller 21, wherein the side end of the wire rod connecting 18 is provided with the spring column 19, the end part of the spring column 19 is fixedly provided with a column connecting seat 20, the end wall of the column connecting seat 20 is provided with the seat inner roller 21, the bottoms of the left end and the right end of the assembly 1 are respectively provided with a base group mechanism 22, the base group mechanisms 22 comprise a base 23, a seat slideway 24, a seat inner frame strip 25, a penetrating and connecting clamping strip 26, a strip connecting plate 27, a plate buckle 28 and a buckle hole 29, the inner side end wall of the base 23 is provided with the seat slideway 24, the end part of the seat slideway 24 is provided with the seat inner frame strip 25, the side end of the base 23 is fixedly provided with the penetrating and connecting clamping strip 26, the side end of the penetrating and connecting clamping strip 26 is provided with the strip connecting plate 27, the end wall of the strip connecting plate 27 is provided with the plate buckle 28, the end wall of the assembly 1 close to the plate buckle 28 is provided with the buckle hole 29, and the middle part of the bottom end of the base group mechanism 22 is penetrated and provided with a locking screw 30;

the internal fixing mechanism 3 comprises a fixed seat 4, a fixed disc 5, a disc channel 6, disc blocks 7 and a block rotary disc 8, the fixed disc 5 is specified at the side end of the fixed seat 4, the disc channel 6 is arranged on the inner side end wall of the fixed disc 5, the disc blocks 7 are arranged on the end wall of the disc channel 6, the block rotary disc 8 is arranged in the middle of the disc blocks 7, the fixed seat 4 and the fixed disc 5 are fixedly connected with each other, the fixed disc 5 and the disc blocks 7 form a sliding structure through the disc channel 6, the position of the fixed seat 4 can be adjusted through the movement between the fixed seat 4 and the central notch 2, the fixed seat 4 slides out of the body, and at the moment, the fixed seat 4 and the block rotary disc 8 can be used;

the disc blocks 7 and the block turntables 8 are movably connected with each other, the disc blocks 7 and the block turntables 8 are distributed at equal intervals relative to the end walls of the fixed discs 5, screw assembling, welding, polishing and other devices can be arranged through threaded holes in the end portions of the block turntables 8 in a penetrating mode, processing of the wind power bearing retainer carried on the top of the body is facilitated, meanwhile, the disc blocks 7 can slide through the disc channels 6 and are adjusted to appropriate positions, then the disc blocks 7 and the block turntables 8 can be rotated, the orientation of the block turntables 8 is adjusted in a rotating mode, and flexible processing and use of the block turntables are facilitated;

the upper clamping mechanism 9 comprises a clamping seat 10, seat side wheels 11, rolling wheels 12, rotary columns 13, a column middle cavity 14 and sponge blocks 15, seat side wheels 11 are arranged at the side ends of the clamping seat 10, the rolling wheels 12 and the rotary columns 13 penetrate through the middle of the clamping seat 10, the column middle cavity 14 and the sponge blocks 15 are arranged on the end walls of the rotary columns 13, the clamping seat 10 and the seat side wheels 11 are movably connected with each other, the seat side wheels 11 are symmetrically distributed about the center of the clamping seat 10, the central sliding block 16 can be rotationally adjusted by rotating the position adjusting lead screw 31, the position of the central sliding block 16 and the position of the upper clamping mechanism 9 at the top end of the central sliding block 16 are changed, the upper clamping mechanism 9 can be better controlled conveniently, one end wall of the wind power bearing retainer can be carried in the middle of the clamping seat 10, meanwhile, the seat side wheels 11 and the rolling wheels 12 can roll, the rolling and the rotation adjustment between the end wall of the retainer and the clamping seat 10 can be convenient, the direction adjustment can be better carried out after the rotation of the retainer, convenient processing is carried out;

the clamping seat 10 is in threaded connection with the rotary column 13, the rotary column 13 is adhered to the sponge block 15, the clamping seat 10 and the roller 12 are movably connected, the rotary column 13 is rotated to adjust the position of the rotary column 13 in a rotating mode, when the rotary column 13 moves upwards, the bottom end wall can be kept in contact, the sponge block 15 can clean the end wall of the retainer, and meanwhile dry or cleaning powder can be added into the middle cavity 14 of the column;

the connecting wire rod 18 and the column connecting seat 20 form an elastic structure through a spring column 19, the bottom of the column connecting seat 20 and a seat inner roller 21 form a rotating structure through arranging a rotating shaft, the base 23 and the seat inner frame strip 25 form a sliding structure through a seat slideway 24, the base 23 and the installation body 1 form a sliding structure through a connecting clamping strip 26, a strip connecting plate 27 and the installation body 1, the strip connecting plate 27 and the installation body 1 form a clamping structure through a plate buckle 28 and a buckle hole 29, the column connecting seat 20 can be elastically adjusted through the elasticity of the spring column 19, the column connecting seat 20 is made to bounce towards the outer side of the connecting wire rod 18, after the wind power bearing retainer is carried in the middle of the clamping seat 10, the column connecting seat 20 bounces outwards, the seat inner roller 21 bounces outwards along with the column connecting seat inner roller and is tightly attached to the end wall of the retainer, the end wall of the retainer is cleaned, tidiness and dirt are conveniently kept, meanwhile, lubricating oil can be added into the interior of the seat inner frame strip 25, the connecting clamping strip 26 made of sponge, the outer wall of the retainer at the end of the cartridge 10 is lubricated by the through-connection snap strips 26.

In conclusion, the tool for processing the wind power bearing retainer capable of rotating and adjusting the direction is used, when the tool is used, the position of the fixed seat 4 can be adjusted through the activity between the fixed seat 4 and the central notch 2, the fixed seat 4 can slide out of the body, at the moment, the fixed seat 4 and the block turntable 8 can be used, a screw assembly welding device, a polishing device and the like can be arranged through a threaded hole in the end part of the block turntable 8 in a penetrating mode, the wind power bearing retainer carried on the top of the body can be conveniently processed, meanwhile, the disk block 7 can slide through the disk channel 6 and be adjusted to a proper position, then, the disk block 7 and the block turntable 8 can be rotated, the direction of the block turntable 8 can be adjusted in a rotating mode, the tool can be conveniently and flexibly processed and used, the position of the central slider 16 can be adjusted through the rotating and adjusting screw rod 31, the position of the central slider 16 can be changed, the position of the upper clamping mechanism 9 on the top end of the central slider 16 can be conveniently and better controlled, the middle part of the holder 10 can carry one end wall of a wind power bearing holder, meanwhile, the seat side wheels 11 and the roller wheels 12 roll to facilitate rolling and rotation adjustment between the end wall of the holder and the holder 10, after the holder rotates, the holder can be conveniently and better adjusted in direction to be conveniently processed, the position of the rotary column 13 can be rotatably adjusted through rotating the rotary column 13, when the rotary column 13 moves upwards, the bottom end wall can be contacted, the sponge block 15 can clean and erase the end wall of the holder, meanwhile, dry or cleaning powder can be added into the middle cavity 14 of the column, the adjusting column connecting seat 20 can be flicked through the elasticity of the spring column 19, the column connecting seat 20 flicked towards the outer side of the connecting rod 18, when the middle part of the holder 10 carries the wind power bearing holder, the column connecting seat 20 flicks outwards, the seat inner roller 21 flicks outwards along with the column connecting seat and is tightly attached to the end wall of the holder, and the end wall of the holder is cleaned and cleaned, conveniently keep clean and tidy, get rid of dirty, the inside additive lubricating oil of seat inner frame strip 25 simultaneously, lubricating oil dip for sponge material wear even card strip 26, and through wearing even card strip 26 to lubricate the holder outer wall of holder 10 tip.

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.