阅读说明：本技术 一种织布机用便于调节的束线结构 (Bunch structure convenient to adjust for loom ) 是由 姜英飞 于 2020-12-31 设计创作，主要内容包括：本发明涉及纺织设备技术领域,尤其是一种织布机用便于调节的束线结构,包括托环,所述托环的上侧壁固定安装有滑动环,所述滑动环的上侧壁均匀滑动安装有滑动块,所述滑动块的两侧设有限位装置,所述滑动块的上侧壁固定安装有下支撑块,所述下支撑块的上侧壁中心处转动安装有转轴；本发明通过设置蜗杆、牵引杆和转轴,使得在转动蜗杆时可以通过蜗轮带动一组转轴转动,从而通过各组牵引杆牵引各组转轴和下支撑块同步移动,使得在进行进行织线穿线过程中可以将各组下支撑块传动至托环的同一侧,从而避免传统的织布机的束线结构在进行穿线时需要围绕整个束线进行逐一穿线,造成的穿线过程较为繁琐,而且费时费力的问题。(The invention relates to the technical field of textile equipment, in particular to a bunching structure convenient to adjust for a loom, which comprises a supporting ring, wherein a sliding ring is fixedly arranged on the upper side wall of the supporting ring, sliding blocks are uniformly and slidably arranged on the upper side wall of the sliding ring, limiting devices are arranged on two sides of each sliding block, a lower supporting block is fixedly arranged on the upper side wall of each sliding block, and a rotating shaft is rotatably arranged at the center of the upper side wall of each lower supporting block; according to the invention, the worm, the traction rods and the rotating shafts are arranged, so that one group of rotating shafts can be driven to rotate through the worm wheel when the worm rotates, and the groups of rotating shafts and the lower supporting blocks are pulled to synchronously move through the groups of traction rods, so that the groups of lower supporting blocks can be transmitted to the same side of the supporting ring in the threading process of weaving threads, and the problems that the threading process is complicated and time and labor are wasted because the traditional bunching structure of a loom needs to thread around the whole bunching wire one by one in the threading process are solved.)

1. The utility model provides a bunch structure that loom was used and is convenient for adjust, includes supporting ring (3), its characterized in that, the last lateral wall fixed mounting of supporting ring (3) has slip ring (4), the even slidable mounting of the last lateral wall of slip ring (4) has sliding block (5), the both sides of sliding block (5) are equipped with stop device, the last lateral wall fixed mounting of sliding block (5) has lower shoe (16), the last lateral wall center department of lower shoe (16) rotates and installs pivot (17), the one end fixed mounting that lower shoe (16) was kept away from in pivot (17) has last supporting shoe (18), go up supporting shoe (18) with the outside fixed mounting of lower shoe (16) has fixed frame (48), draw gear is established in the outside of pivot (17), screw rod (19) are installed to the inner chamber screw thread of lower shoe (16), the utility model discloses a lead wire guide device, including fixed frame (48), screw rod (19) both ends run through respectively the both sides wall of fixed frame (48) and extend to the outside of fixed frame (48), screw rod (19) with fixed frame (48) threaded connection, guiding hole (20) have been seted up to the inner chamber of going up supporting block (18), the inner chamber slidable mounting of guiding hole (20) has guide bar (21), guide bar (21) run through the both sides wall of fixed frame (48), guide bar (21) with fixed frame (48) slidable connection, screw rod (19) are kept away from one side of backing ring (3) inner chamber is rotated and is installed L shape installation piece (25), L shape installation piece (25) with guide bar (21) fixed connection, the last lateral wall fixed mounting of L shape installation piece (25) has first wire guide plate (26), the inner chamber fixed mounting of first wire guide plate (26) has first wire ring (28), a connecting sheet (27) is fixedly arranged on one side wall of the first wire guide plate (26), a wire guide device is arranged on one side wall of the L-shaped mounting block (25) far away from the guide rod (21), a second wire guide plate (32) is fixedly arranged on the lower side wall of the L-shaped mounting block (25), a second wire guide ring (33) is fixedly arranged in the inner cavity of the second wire guide plate (32), a tension yarn winding wheel (34) is rotatably arranged on the lower side wall of the second wire guide plate (32), the lower side wall of the tensioning yarn winding wheel (34) is rotatably provided with a supporting plate (35), the supporting plate (35) is fixedly connected with the L-shaped mounting block (25), a third wire guide plate (36) is arranged below the supporting plate (35), the third wire guide plate (36) is fixedly connected with the L-shaped mounting block (25), and a third wire ring (37) is fixedly arranged in the inner cavity of the third wire guide plate (36).

2. The bunching structure convenient to adjust for the loom of claim 1, wherein the limiting device comprises an L-shaped limiting block (14), the L-shaped limiting block (14) is symmetrically and fixedly mounted on two side walls of the sliding block (5), the inner side wall and the outer side wall of the sliding ring (4) are both provided with a limiting groove (49) matched with the L-shaped limiting block (14), and the L-shaped limiting block (14) is slidably mounted in an inner cavity of the limiting groove (49).

3. The bunching structure convenient to adjust for the weaving machine is characterized in that a guide block (6) formed in an integral mode is arranged at the center of an inner cavity of the sliding block (5), and a guide groove (7) matched with the guide block (6) is formed in the upper side wall of the sliding ring (4).

4. The bunching structure convenient to adjust for weaving machine according to claim 3, characterized in that both sides of guide block (6) are provided with fixed blocks (8), fixed blocks (8) and sliding block (5) are fixedly connected, a ball groove (9) is opened on a side wall of fixed blocks (8) close to sliding ring (4), a ball cover (11) is fixedly mounted on a side of fixed blocks (8) close to sliding ring (4), ball holes (12) and ball grooves (9) are respectively opened in inner cavities of ball cover (11) and fixed blocks (8), balls (10) are sleeved on inner cavities of ball holes (12) and ball grooves (9), and rolling grooves (13) matched with balls (10) are opened on both sides of upper wall of sliding ring (4).

5. The bunching structure convenient to adjust for the weaving machine is characterized in that the traction device comprises traction rods (15), the traction rods (15) are rotatably installed on the outer sides of the rotating shafts (17), two adjacent traction rods (15) are rotatably connected, a worm wheel (45) is fixedly installed on the outer sides of the rotating shafts (17), a worm (46) is installed on one side of the worm wheel (45) in a meshed mode, the worm (46) is rotatably connected with the lower supporting block (16), and a hand wheel (47) is fixedly installed at one end of the worm (46).

6. The bunching structure convenient to adjust for the weaving machine is characterized in that one end of the draw bar (15) is provided with an integrally formed connecting block (41), an inner cavity of the connecting block (41) is provided with a shaft hole (42), one side wall of the draw bar (15) far away from the connecting block (41) is provided with a connecting groove (44), and an inner cavity of the connecting groove (44) is provided with a bolt (43) in a threaded manner.

7. The bunching structure convenient to adjust for the weaving machine is characterized in that a support rod (2) is uniformly and fixedly installed on the lower side wall of the support ring (3), and a bottom ring frame (1) is fixedly installed at one end, far away from the support ring (3), of the support rod (2).

8. The bunching structure convenient to adjust for the weaving machine is characterized in that the wire guiding device comprises a fixing plate (29), the fixing plate (29) is symmetrically installed on one side wall of the L-shaped installation block (25) far away from the guide rod (21), sliding blocks (38) are fixedly installed in inner cavities of two groups of the fixing plates (29), connecting shafts (30) are rotatably installed on opposite sides of two groups of the sliding blocks (38), wire guiding blocks (31) are fixedly installed on opposite sides of two groups of the connecting shafts (30), fixing plates (39) are fixedly installed on opposite sides of two groups of the sliding blocks (38), a spring (40) is fixedly installed between the fixing plates (39) and the fixing plates (39), and the spring (40) is sleeved on the outer side of the sliding blocks (38).

9. The bunching structure convenient to adjust for the loom of claim 1, wherein a C-shaped guide block (22) is fixedly mounted on one side of the lower side wall of the fixing frame (48) far away from the L-shaped mounting block (25), an arc-shaped block (23) is fixedly mounted on one side of the C-shaped guide block (22) close to the supporting ring (3), and a positioning groove (24) matched with the arc-shaped block (23) is formed in the lower side wall of the supporting ring (3).

Technical Field

The invention relates to the technical field of textile equipment, in particular to a bunching structure convenient to adjust for a loom.

Background

Loom, commonly known as weaving machine. The earliest looms were squat looms (called waist looms) sitting on the ground. The using method is that a foot is used for stepping on a warp wood stick of the weaving machine, the beating-up wood knife is held by the right hand to beat up the weft, and the left hand is used for making the posture of a weft insertion lead. The pedal type waist machine has no frame, one end of the cloth winding shaft is tied between the waist, the warp beam at the other end is pedaled by two feet and the fabric is tensioned, the warp is divided into two layers according to odd and even numbers by the warp dividing stick, the warp is lifted by the heald lifting rod to form a shed, the shed is inserted by a spicule, and the beating-up knife beats up the weft. The most important achievement of the waist machine weaving is that three kinds of heald lifting rods, warp separator rods and beating-up blades are adopted. Although this loom seems to be simple, it has 3 directions of motion such as up and down opening of the cloth fell, left and right weft insertion, and back and forth tightening, and is the ancestor of modern looms.

Loom need carry out the threading to the loom before weaving fixedly, in order to prevent that the loom from being drawn the overlength and causing the waste at the threading in-process, need adopt corresponding bunch structure to carry out the short duration to the loom and fix, traditional loom's bunch structure need carry out threading one by one around whole bunch when carrying out the threading, the threading process that causes is comparatively loaded down with trivial details, wastes time and energy moreover to do not have the position to bunch structure and adjust.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a bunching structure convenient to adjust for a weaving machine.

In order to achieve the purpose, the invention adopts the following technical scheme:

designing a bunching structure convenient to adjust for a loom, comprising a supporting ring, wherein a sliding ring is fixedly installed on the upper side wall of the supporting ring, sliding blocks are uniformly and slidably installed on the upper side wall of the sliding ring, limiting devices are arranged on two sides of the sliding block, a lower supporting block is fixedly installed on the upper side wall of the sliding block, a rotating shaft is rotatably installed at the center of the upper side wall of the lower supporting block, an upper supporting block is fixedly installed at one end of the rotating shaft, which is far away from the lower supporting block, fixed frames are fixedly installed on the outer sides of the upper supporting block and the lower supporting block, a traction device is arranged on the outer side of the rotating shaft, a screw is installed in the inner cavity thread of the lower supporting block, two ends of the screw respectively penetrate through two side walls of the fixed frames and extend to the outer side of the fixed frames, the inner cavity of the guide hole is slidably provided with a guide rod, the guide rod penetrates through two side walls of the fixed frame and is slidably connected with the fixed frame, one side of the screw rod, which is far away from the inner cavity of the supporting ring, is rotatably provided with an L-shaped installation block, the L-shaped installation block is fixedly connected with the guide rod, the upper side wall of the L-shaped installation block is fixedly provided with a first wire guide plate, the inner cavity of the first wire guide plate is fixedly provided with a first wire guide ring, one side wall of the first wire guide plate is fixedly provided with a connecting sheet, one side wall of the L-shaped installation block, which is far away from the guide rod, is provided with a wire device, the lower side wall of the L-shaped installation block is fixedly provided with a second wire guide plate, the inner cavity of the second wire guide plate is fixedly provided with a second wire guide ring, the lower side wall of the second wire guide plate is rotatably provided with a, the supporting plate is fixedly connected with the L-shaped mounting block, a third wire guide plate is arranged below the supporting plate, the third wire guide plate is fixedly connected with the L-shaped mounting block, and a third wire guide ring is fixedly mounted in an inner cavity of the third wire guide plate.

Preferably, the limiting device comprises an L-shaped limiting block, the L-shaped limiting block is symmetrically and fixedly installed on two side walls of the sliding block, a limiting groove matched with the L-shaped limiting block is formed in the inner side wall and the outer side wall of the sliding ring, and the L-shaped limiting block is slidably installed in an inner cavity of the limiting groove.

Preferably, the center of the inner cavity of the sliding block is provided with an integrally formed guide block, and the upper side wall of the sliding ring is provided with a guide groove matched with the guide block.

Preferably, the both sides of guide block all are equipped with the fixed block, the fixed block with sliding block fixed connection, the fixed block is close to ball groove has been seted up to a lateral wall of slip ring, the fixed block is close to one side fixed mounting of slip ring has the ball lid, the ball lid with ball hole and ball groove have been seted up respectively to the inner chamber of fixed block, the ball hole with the inner chamber cover in ball groove is equipped with the ball, the upper wall both sides of slip ring seted up with the rolling groove of ball looks adaptation.

Preferably, the traction device comprises traction rods, the traction rods are rotatably installed on the outer side of the rotating shaft, the adjacent two traction rods are rotatably connected, a worm wheel is fixedly installed on the outer side of the rotating shaft, a worm is meshed with one side of the worm wheel, the worm is rotatably connected with the lower support block, and a hand wheel is fixedly installed at one end of the worm.

Preferably, an integrally formed connecting block is arranged at one end of the traction rod, a shaft hole is formed in an inner cavity of the connecting block, a connecting groove is formed in one side wall, away from the connecting block, of the traction rod, and a bolt is installed in the inner cavity of the connecting groove in a threaded mode.

Preferably, the lower side wall of the supporting ring is uniformly and fixedly provided with a supporting rod, and one end of the supporting rod, which is far away from the supporting ring, is fixedly provided with a bottom ring frame.

Preferably, the wire device includes the fixed plate, the fixed plate symmetry install in L shape installation piece is kept away from a lateral wall of guide bar, and is two sets of the equal fixed mounting in inner chamber of fixed plate has the slider, and is two sets of the opposite side of slider is all rotated and is installed the connecting axle, and is two sets of the equal fixed mounting in opposite side of connecting axle has the wire piece, and is two sets of the equal fixed mounting in opposite side of slider has the stationary blade, the stationary blade with fixed mounting has the spring between the stationary blade, the spring housing is located the outside of slider.

Preferably, the lower lateral wall of fixed frame is kept away from one side fixed mounting of L shape installation piece has C shape guide block, C shape guide block is close to one side fixed mounting of backing ring has the arc piece, the lower lateral wall of backing ring seted up with the constant head tank of arc piece looks adaptation.

The invention provides a bunching structure convenient to adjust for a loom, which has the beneficial effects that:

1. according to the invention, the worm, the traction rods and the rotating shafts are arranged, so that one group of rotating shafts can be driven to rotate through the worm wheel when the worm rotates, and the groups of rotating shafts and the lower supporting blocks are pulled to synchronously move through the groups of traction rods, so that the groups of lower supporting blocks can be transmitted to the same side of the supporting ring in the threading process of weaving threads, and the problems that the threading process is complicated and time and labor are wasted because the traditional bunching structure of a loom needs to thread around the whole bunching wire one by one in the threading process are solved.

2. Through setting up screw rod, guide bar and L shape installation piece for the screw rod can drive at the pivoted in-process and correspond L shape installation piece and remove, realizes adjusting the position of line pair L shape installation piece, avoids the comparatively loaded down with trivial details problem of traditional weaving machine's bunch structure position adjustment.

Drawings

FIG. 1 is a cross-sectional top view of a harness structure for a loom that is easy to adjust according to the present invention;

FIG. 2 is an enlarged view of the B-part structure of the adjustable bunching structure for a loom in accordance with the present invention;

FIG. 3 is an enlarged view of the structure of the portion C of the bunching structure for a loom convenient to adjust according to the present invention;

fig. 4 is a partial sectional view of a structure of a harness structure for a loom convenient to adjust according to the present invention;

FIG. 5 is an enlarged view of a portion A of a harness structure for a loom according to the present invention, which is convenient for adjustment;

fig. 6 is a sectional view of a drawbar structure of a harness structure for a loom convenient to adjust according to the present invention;

fig. 7 is a sectional view of a fixing frame structure of a harness structure for a loom, which is convenient for adjustment.

In the figure: the device comprises a bottom ring frame 1, a support rod 2, a support ring 3, a sliding ring 4, a sliding block 5, a guide block 6, a guide groove 7, a fixed block 8, a ball groove 9, a ball 10, a ball cover 11, a ball hole 12, a rolling groove 13, an L-shaped limiting block 14, a traction rod 15, a lower supporting block 16, a rotating shaft 17, an upper supporting block 18, a screw rod 19, a guide hole 20, a guide rod 21, a C-shaped guide block 22, an arc-shaped block 23, a positioning groove 24, an L-shaped mounting block 25, a first wire guide plate 26, a connecting sheet 27, a first wire guide ring 28, a fixed plate 29, a connecting shaft 30, a wire guide block 31, a second wire guide plate 32, a second wire guide ring 33, a tensioning yarn winding wheel 34, a supporting plate 35, a third wire guide plate 36, a third wire guide ring 37, a sliding block 38, a fixed sheet 39, a spring 40, a connecting block 41, a shaft hole 42, a bolt 43, a connecting groove.

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.

Referring to fig. 1-7, a bunch structure that loom was used convenient to adjust, including the trunnion ring 3, the last lateral wall fixed mounting of trunnion ring 3 has slip ring 4, the even slidable mounting of the last lateral wall of slip ring 4 has sliding block 5, the both sides of sliding block 5 are equipped with stop device, stop device includes L shape stopper 14, L shape stopper 14 symmetry fixed mounting is in the both sides wall of sliding block 5, the spacing groove 49 with L shape stopper 14 looks adaptation is all seted up to the interior lateral wall of slip ring 4, L shape stopper 14 slidable mounting is in the inner chamber of spacing groove 49, mutually supporting of L shape stopper 14 and spacing groove 49 for carry on spacingly to sliding block 5, prevent that sliding block 5 and slip ring 4 from breaking away from.

Sliding block 5's inner chamber center department is equipped with integrated into one piece's guide block 6, the guide way 7 with 6 looks adaptations of guide block is seted up to the last lateral wall of sliding ring 4, the both sides of guide block 6 all are equipped with fixed block 8, fixed block 8 and sliding block 5 fixed connection, ball groove 9 has been seted up to a lateral wall that fixed block 8 is close to sliding ring 4, one side fixed mounting that fixed block 8 is close to sliding ring 4 has ball lid 11, ball hole 12 and ball groove 9 have been seted up respectively to ball lid 11 and the inner chamber of fixed block 8, the inner chamber cover of ball hole 12 and ball groove 9 is equipped with ball 10, rolling groove 13 with ball 10 looks adaptation is seted up to the upper wall both sides of sliding ring 4, ball 10 and rolling groove 13 mutually support, be used for supporting sliding block 5, be convenient for simultaneously sliding block 5 moves in sliding ring 4's top.

A lower supporting block 16 is fixedly installed on the upper side wall of the sliding block 5, a rotating shaft 17 is rotatably installed at the center of the upper side wall of the lower supporting block 16, an upper supporting block 18 is fixedly installed at one end, far away from the lower supporting block 16, of the rotating shaft 17, a fixing frame 48 is fixedly installed on the outer sides of the upper supporting block 18 and the lower supporting block 16, a traction device is arranged on the outer side of the rotating shaft 17 and comprises traction rods 15, the traction rods 15 are rotatably installed on the outer sides of the rotating shaft 17, two adjacent traction rods 15 are rotatably connected, a worm wheel 45 is fixedly installed on the outer sides of a group of rotating shafts 17, a worm 46 is meshed with one side of the worm wheel 45 and is connected with the lower supporting block 16 in a rotating manner, a hand wheel 47 is fixedly installed at one end of the worm 46, an integrally formed connecting block 41 is arranged at one end of the, the worm 46 is used for driving one group of the rotating shafts 17 to rotate through the worm wheel 45 when rotating, and then the groups of the rotating shafts 17 are pulled to synchronously rotate through the traction rod 15, so that the traction rod 15 is driven to slide above the sliding ring 4, the position of the L-shaped mounting block 25 is adjusted, the groups of the lower supporting blocks 16 can be rotated to the same side of the supporting ring 3 to thread the weaving threads for weaving, and the problem that the weaving threads need to be threaded through the device around the outer side of the whole supporting ring 3 one by one when thread binding is carried out is solved.

A screw rod 19 is installed in the inner cavity thread of the lower supporting block 16, two ends of the screw rod 19 respectively penetrate through two side walls of the fixing frame 48 and extend to the outer side of the fixing frame 48, the screw rod 19 is in threaded connection with the fixing frame 48, a guide hole 20 is formed in the inner cavity of the upper supporting block 18, a guide rod 21 is installed in the inner cavity of the guide hole 20 in a sliding manner, the guide rod 21 penetrates through two side walls of the fixing frame 48, the guide rod 21 is in sliding connection with the fixing frame 48, an L-shaped installation block 25 is rotatably installed on one side of the screw rod 19 away from the inner cavity of the supporting ring 3, the L-shaped installation block 25 is fixedly connected with the guide rod 21, a first wire guide plate 26 is fixedly installed on the upper side wall of the L-shaped installation block 25, a first wire guide ring 28 is fixedly installed in the inner cavity of the first wire guide plate 26, a connecting sheet 27 is, fixed plate 29 symmetry is installed in a lateral wall that guide bar 21 was kept away from to L shape installation piece 25, the equal fixed mounting in inner chamber of two sets of fixed plates 29 has slider 38, the equal rotation in opposite side of two sets of sliders 38 installs connecting axle 30, the equal fixed mounting in opposite side of two sets of connecting axles 30 has wire piece 31, the equal fixed mounting in opposite side of two sets of sliders 38 has stationary blade 39, fixed mounting has spring 40 between stationary blade 39 and the stationary blade 39, the outside of slider 38 is located to the spring 40 cover, spring 40 drives the stationary blade 39 relative motion of both sides, and then make two wire pieces 31 contact, thereby can carry out the centre gripping fixedly to weaving the line at the in-process of threading, it is more convenient to make the threading, also play the guide effect to weaving the line at the.

The lower side wall fixed mounting of L shape installation piece 25 has second wire guide 32, the inner chamber fixed mounting of second wire guide 32 has second wire ring 33, the lower side wall of second wire guide 32 rotates and installs tensioning yarn wheel 34, the lower side wall of tensioning yarn wheel 34 rotates and installs layer board 35, layer board 35 and L shape installation piece 25 fixed connection, the below of layer board 35 is equipped with third wire guide 36, third wire guide 36 and L shape installation piece 25 fixed connection, the inner chamber fixed mounting of third wire guide 36 has third wire ring 37, tensioning yarn wheel 34 can be convoluteed the line of knitting as required, thereby the line of knitting keeps the tensioning state.

The even fixed mounting of lower lateral wall of backing ring 3 has bracing piece 2, the one end fixed mounting that backing ring 3 was kept away from to bracing piece 2 has bottom ring frame 1, one side fixed mounting that L shape installation piece 25 was kept away from to the lower lateral wall of fixed frame 48 has C shape guide block 22, one side fixed mounting that C shape guide block 22 is close to backing ring 3 has arc piece 23, the constant head tank 24 with 23 looks adaptations of arc piece is seted up to the lower lateral wall of backing ring 3, C shape guide block 22 and arc piece 23 are used for keeping away from one side of L shape installation piece 25 to fixed frame 48 spacing, in order to improve the intensity of fixed frame 48.

The working principle is as follows: in the using process of the invention, a bottom ring frame 1 is fixedly arranged at the top of a loom, then a worm 46 is rotated, the worm 46 drives a group of rotating shafts 17 to rotate through a worm wheel 45, the other rotating shafts 17 are driven to synchronously rotate through a traction rod 15, the sliding block 5 is driven by each group of traction rods 15 to rotate to the same side of the sliding block 5, then a weaving thread sequentially passes through a first thread guiding ring 28 and a second thread guiding ring 33, then the weaving thread is wound on the outer side of a tensioning yarn winding wheel 34 for a plurality of turns and then passes through a third thread guiding ring 37, then fixing pieces 39 on two sides are pulled, so that the thread guiding blocks 31 on two sides are pulled to move oppositely, then the weaving thread is placed between the two groups of thread guiding blocks 31, then the fixing pieces 39 are loosened, the branch thread is clamped and fixed by the two groups of thread guiding blocks 31, then the tensioning yarn winding wheel 34 is rotated, so that the, then the fixing pieces 39 on the two sides are pulled again, so that the wire guide blocks 31 on the two sides are pulled to move oppositely to stop clamping the knitting yarns, then the knitting yarns are moved out of the space between the two groups of wire guide blocks 31, the fixing pieces 39 can be loosened, and after all the knitting yarns are threaded, the worm 46 is rotated reversely, so that the traction rods 15 pull the lower support blocks 16 to move to the initial position.

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.