阅读说明：本技术 一种便携式投箭机器人 (Portable arrow throwing robot ) 是由 肖桂英 宋露曦 于 2021-01-29 设计创作，主要内容包括：本发明提供了一种便携式投箭机器人,包括机器人主体和固定机构；所述机器人主体包括主控机构、转动机构、缓冲机构和底座；所述底座的底端与所述固定机构的顶端可拆卸连接；所述底座的顶端与所述缓冲机构的底端连接；所述缓冲机构的顶端与所述转动机构的底端连接；所述转动机构的顶端与所述主控机构的底端连接；上述便携式投箭机器人的所述机器人主体与所述固定机构属于分体式结构,外出使用时可拆卸,便于携带；同时,所述便携式投箭机器人通过所述缓冲机构对所述机器人主体受到的外力进行缓冲,从而提高整体结构的稳定性。(The invention provides a portable arrow-throwing robot, which comprises a robot main body and a fixing mechanism, wherein the robot main body is provided with a main body; the robot main body comprises a main control mechanism, a rotating mechanism, a buffer mechanism and a base; the bottom end of the base is detachably connected with the top end of the fixing mechanism; the top end of the base is connected with the bottom end of the buffer mechanism; the top end of the buffer mechanism is connected with the bottom end of the rotating mechanism; the top end of the rotating mechanism is connected with the bottom end of the main control mechanism; the robot main body and the fixing mechanism of the portable type arrow throwing robot belong to a split structure, and the portable type arrow throwing robot can be detached when being used outdoors and is convenient to carry; meanwhile, the portable arrow throwing robot buffers external force applied to the robot main body through the buffer mechanism, so that the stability of the whole structure is improved.)

1. A portable arrow-throwing robot is characterized by comprising a robot main body and a fixing mechanism;

the robot main body comprises a main control mechanism, a rotating mechanism, a buffer mechanism and a base;

the bottom end of the base is detachably connected with the top end of the fixing mechanism;

the top end of the base is connected with the bottom end of the buffer mechanism;

the top end of the buffer mechanism is connected with the bottom end of the rotating mechanism;

the top end of the rotating mechanism is connected with the bottom end of the main control mechanism.

2. A portable archery robot as recited in claim 1, wherein said damping mechanism comprises a first disc, a second disc, and a plurality of damping bars annularly distributed along an outer circumference of said first disc;

the buffer strip comprises a first bending section and a second bending section;

the first bending section and the second bending section are bent in opposite directions;

one end of the first bending section is connected with the first disc, and the other end of the first bending section is connected with one end of the second bending section;

the other end of the second bending section is connected with the second disc.

3. A portable arrow-throwing robot as recited in claim 2, wherein said first curved section and said second curved section have different radii of curvature.

4. A portable archery robot according to claim 1, wherein said rotating mechanism includes a driving source, a turntable, a shock absorbing member, and a driven plate;

the driving source is arranged at the top end of the buffer mechanism, and the top end of the driving source is connected with the bottom end of the turntable;

the top end of the rotary table is provided with a plurality of blades which are uniformly arranged along the axis of the rotary table in an involute shape;

the damping parts are uniformly provided with the same number of damping parts which are matched with the blades;

the driven disc is uniformly provided with rotating pieces which are the same in number and are matched with the damping parts;

the damper portion is provided between the blade and the rotor.

5. A portable arrow shooting robot as claimed in claim 4, wherein the shock absorbing part is made of rubber, sponge or foamed plastic.

6. A portable arrow-throwing robot as claimed in claim 4, wherein said blade, said shock-absorbing part and said rotor are provided with mutually adapted curved or broken line structures.

7. A portable arrow shooting robot as claimed in claim 4, wherein the rotation mechanism further comprises a resilient member;

one end of the elastic piece is connected with the axis of the rotary disc, and the other end of the elastic piece is connected with the axis of the driven disc.

8. A portable arrow-throwing robot according to claim 7, wherein said elastic member comprises a shock-absorbing spring or a torsion spring.

9. The portable archery robot of claim 1, wherein the securing mechanism comprises a first ring, a second ring, a cylinder, and a plurality of telescoping rods;

the cylinder is arranged between the first circular ring and the second circular ring, a piston rod of the cylinder is connected with the bottom of the first circular ring, and the bottom of a cylinder body of the cylinder is connected with the top of the second circular ring;

a plurality of sliding grooves matched with the telescopic rods are formed in the first circular ring;

one end of the telescopic rod is connected in the sliding groove in a sliding mode, and the other end of the telescopic rod is fixedly connected to the second circular ring.

10. A portable arrow shooting robot as claimed in claim 1, wherein the bottom end of the securing mechanism is provided with a moving assembly.

Technical Field

The invention relates to the field of robots, in particular to a portable arrow throwing robot.

Background

The arrow throwing is also called as the kettle throwing, is originated in the spring, autumn and warring period, and is a guest waiting gift and elegant competition activity during banquet; in recent years, with the development of science and technology, the development of the archery robot enables the archery game to be popular with people again; at present, some sport venues are provided with arrow-throwing robots, the arrow-throwing robots throw the arrows in competition with people, so that the interestingness of games is increased, but the existing arrow-throwing robots are of fixed mounting structures, large in size, inconvenient to carry and poor in stability.

Disclosure of Invention

Based on the technical scheme, the invention provides a portable arrow throwing robot, which aims to solve the problems that the existing arrow throwing robot is inconvenient to carry and poor in stability, and the specific technical scheme is as follows:

a portable arrow-throwing robot comprises a robot main body and a fixing mechanism; the robot main body comprises a main control mechanism, a rotating mechanism, a buffer mechanism and a base; the bottom end of the base is detachably connected with the top end of the fixing mechanism; the top end of the base is connected with the bottom end of the buffer mechanism; the top end of the buffer mechanism is connected with the bottom end of the rotating mechanism; the top end of the rotating mechanism is connected with the bottom end of the main control mechanism.

The robot main body and the fixing mechanism of the portable type arrow throwing robot belong to a split structure, and the portable type arrow throwing robot can be detached when being used outdoors and is convenient to carry; meanwhile, the portable arrow throwing robot buffers external force applied to the robot main body through the buffer mechanism, so that the stability of the whole structure is improved.

Further, the buffer mechanism comprises a first disk, a second disk and a plurality of buffer strips which are distributed along the outer circumference of the first disk in a ring shape; the buffer strip comprises a first bending section and a second bending section; the first bending section and the second bending section are bent in opposite directions; one end of the first bending section is connected with the first disc, and the other end of the first bending section is connected with one end of the second bending section; the other end of the second bending section is connected with the second disc.

Further, the first curved segment and the second curved segment have different radii of curvature.

Further, the rotating mechanism includes a driving source, a turntable, a damper, and a driven disk; the driving source is arranged at the top end of the buffer mechanism, and the top end of the driving source is connected with the bottom end of the turntable; the top end of the rotary table is provided with a plurality of blades which are uniformly arranged along the axis of the rotary table in an involute shape; the damping parts are uniformly provided with the same number of damping parts which are matched with the blades; the driven disc is uniformly provided with rotating pieces which are the same in number and are matched with the damping parts; the damper portion is provided between the blade and the rotor.

Further, the shock absorbing part is made of rubber, sponge or foamed plastic.

Further, the blade, the shock absorption part and the rotor are all provided with mutually adaptive curve structures or broken line structures.

Further, the rotating mechanism further comprises an elastic piece; one end of the elastic piece is connected with the axis of the rotary disc, and the other end of the elastic piece is connected with the axis of the driven disc.

Further, the elastic member includes a damper spring or a torsion spring.

Further, the fixing mechanism comprises a first circular ring, a second circular ring, a cylinder and a plurality of telescopic rods; the cylinder is arranged between the first circular ring and the second circular ring, a piston rod of the cylinder is connected with the bottom of the first circular ring, and the bottom of a cylinder body of the cylinder is connected with the top of the second circular ring; a plurality of sliding grooves matched with the telescopic rods are formed in the first circular ring; one end of the telescopic rod is connected in the sliding groove in a sliding mode, and the other end of the telescopic rod is fixedly connected to the second circular ring.

Further, the bottom end of the fixing mechanism is provided with a moving assembly.

Drawings

The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.

FIG. 1 is a schematic structural diagram of a portable arrow-throwing robot according to one embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a fixing mechanism of a portable arrow-throwing robot in one embodiment of the invention;

FIG. 3 is a schematic structural diagram of a buffering mechanism of a portable arrow-throwing robot according to one embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a rotating mechanism of a portable arrow-throwing robot in one embodiment of the invention;

FIG. 5 is a schematic structural diagram of a holder and a holder assembly of a portable archery robot according to one embodiment of the present invention;

fig. 6 is a schematic structural diagram of a base of a portable archery robot in one embodiment of the present invention.

Description of reference numerals: 1. a first circular ring; 2. a second circular ring; 3. a telescopic rod; 4. a chute; 5. a clamping seat; 6. a clamping assembly; 7. a first disc; 8. a second disc; 9. a first curved section; 10. a second curved section; 11. a drive source; 12. a turntable; 13. a shock absorbing member; 14. a driven plate; 15. a blade; 16. a shock absorbing part; 17. rotating the sheet; 18. an elastic member; 19. a moving assembly; 20. a master control mechanism; 21. a rotating mechanism; 22. a buffer mechanism; 23. a base; 24. a fixing mechanism; 25. a cavity; 26. a first nut; 27. a second nut; 28. a screw.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.

As shown in fig. 1 to 6, a portable archery robot in one embodiment of the present invention includes a robot main body and a fixing mechanism 24; the robot main body comprises a main control mechanism 20, a rotating mechanism 21, a buffer mechanism 22 and a base 23; the bottom end of the base 23 is detachably connected with the top end of the fixing mechanism 24; the top end of the base 23 is connected with the bottom end of the buffer mechanism 22; the top end of the buffer mechanism 22 is connected with the bottom end of the rotating mechanism 21; the top end of the rotating mechanism 21 is connected with the bottom end of the main control mechanism 20.

The robot main body and the fixing mechanism 24 of the portable type arrow throwing robot belong to a split structure, and can be detached when being used outdoors, so that the portable type arrow throwing robot is convenient to carry; meanwhile, the portable type arrow throwing robot buffers external force applied to the robot main body through the buffer mechanism 22, so that the stability of the whole structure is improved.

In one embodiment, the bottom end of the base 23 is provided with a stud and a cavity 25 for accommodating the stud; the stud comprises a first nut 26, a second nut 27 and a screw 28; the first screw cap 26 is arranged in the cavity 25 and is rotatably connected with the cavity 25; the bottom end of the first nut 26 is connected with the top end of the screw 28; the second nut 27 is fixedly connected to the screw 28; the top end of the fixing mechanism 24 is provided with a threaded hole matched with the screw 28; by turning the second nut 27, the screw 28 connects the bottom end of the base 23 with the top end of the fixing mechanism 24 through the threaded hole.

Specifically, during installation, the second nut 27 is rotated, the second nut 27 drives the screw 28 to rotate, and the bottom end of the screw 28 connects the stud with the threaded hole through the threaded hole; when the top end of the second nut 27 is attached to the bottom end of the base 23 and the bottom end of the second nut 27 is attached to the fixing mechanism 24, the robot body is tightly connected to the fixing mechanism 24, and the robot is mounted;

when the robot is disassembled, the reverse operation is repeated, and the second nut 27 is rotated reversely to separate the screw 28 from the threaded hole, so that the robot body and the fixing mechanism 24 are disassembled.

In one embodiment, the buffer mechanism 22 comprises a first disk 7, a second disk 8 and a plurality of buffer strips annularly distributed along the outer circumference of the first disk 7; the buffer strip comprises a first bend section 9 and a second bend section 10; the first bending section 9 and the second bending section 10 are bent in opposite directions; one end of the first bending section 9 is connected with the first disc 7, and the other end of the first bending section 9 is connected with one end of the second bending section 10; the other end of the second curved section 10 is connected to the second disc 8.

Specifically, the top end of the first disk 7 is connected with the bottom end of the rotating mechanism 21, and the bottom end of the first disk 7 is connected with the first bending section 9; the top end of the second disk 8 is connected with the second bending section 10, and the bottom end of the second disk 8 is connected with the base 23;

meanwhile, one end of the buffer strip is connected with the outer circumference of the first disc 7; the other end of the buffer strip is connected with the outer circumference of the second disc 8; through the arrangement, the buffer mechanism 22 forms a definite and reasonable force transmission structure;

when the robot main body is subjected to external force or arrow throwing impact force, the external force or the impact force applied to the robot main body is transmitted to the buffer mechanism 22, and the buffer mechanism 22 consumes the applied external force or the impact force through elastic deformation of the first bending section 9 and the second bending section 10, so that the stability of the overall structure of the portable arrow throwing robot is improved.

In one embodiment, the first curved section 9 and the second curved section 10 have different radii of curvature.

Specifically, the first bending section 9 and the second bending section 10 both convert the external force or impact force received into elastic potential energy in the vertical direction and elastic potential energy in the horizontal direction, and by setting different curvature radii, the first bending section 9 and the second bending section 10 form different elastic potential energy and avoid mutual offset of the elastic potential energy.

In one embodiment, the rotation mechanism 21 includes a drive source 11, a turntable 12, a damper 13, and a driven disk 14; the driving source 11 is arranged at the top end of the buffer mechanism 22, and the top end of the driving source 11 is connected with the bottom end of the turntable 12; the top end of the rotating disc 12 is provided with a plurality of blades 15, and the blades 15 are uniformly arranged along the axis of the rotating disc 12 in an involute shape; the damping piece 13 is uniformly provided with damping parts 16 which are matched with the blades 15 in the same number; the driven disc 14 is uniformly provided with rotating pieces 17 which are matched with the damping parts 16 in the same number; the damper 16 is disposed between the blade 15 and the rotor 17.

Specifically, the heights of the blade 15, the damper 16, and the rotor 17 are the same; when the device is assembled, the rotating disc 12, the shock absorbing piece 13 and the driven disc 14 are mutually embedded, the outer side surface of the shock absorbing part 16 is attached to the inner side surface of the blade 15, and the inner side surface of the shock absorbing part 16 is attached to the outer side surface of the rotor plate 17, so that the blade 15, the shock absorbing part 16 and the rotor plate 17 form a force transmission part in sealed connection, and the force transmission mechanism of the force transmission part is clear and reasonable;

in use, the driving source 11 drives the rotary disc 12 to rotate, the rotary disc 12 drives the damping portion 16 to rotate through the blade 15, and the damping portion 16 pushes the rotary piece 17 to rotate, so as to drive the driven disc 14 to rotate.

In one embodiment, the drive source 11 includes a first motor.

In particular, the first electric machine belongs to the prior art and will not be described again here.

In one embodiment, the shock absorbing portion 16 is made of rubber, sponge, or foamed plastic.

Specifically, the shock absorption portion 16 not only improves the contact area of each region of the rotating mechanism 21, so that the rotating mechanism 21 is stressed uniformly and force transmission is stable, but also has the shock absorption and noise reduction effect, so that the shock generated in the rotating process of the driving source 11 is reduced, and the interference to the arrow shooting process is reduced.

In one embodiment, the vane 15, the shock absorbing part 16 and the rotary plate 17 are provided with mutually adapted curved structures or broken line structures.

Specifically, the curved line structure or the broken line structure is favorable for improving the contact area of each part of the rotating mechanism 21, so that the force transmission efficiency is improved, and meanwhile, the curved line structure or the broken line structure belongs to a conventional structure, so that the manufacturing and the processing are convenient.

In one embodiment, the rotating mechanism 21 further comprises an elastic member 18; one end of the elastic element 18 is connected with the axis of the rotating disc 12, and the other end of the elastic element 18 is connected with the axis of the driven disc 14.

In one embodiment, the elastic member 18 comprises a shock absorbing spring or a torsion spring.

Specifically, the damping spring or the damping principle of the torsion spring belong to the prior art, and will not be described herein again.

In one embodiment, the fixing mechanism 24 comprises a first circular ring 1, a second circular ring 2, a cylinder and a plurality of telescopic rods 3; the air cylinder is arranged between the first circular ring 1 and the second circular ring 2, a piston rod of the air cylinder is connected with the bottom of the first circular ring 1, and the bottom of a cylinder body of the air cylinder is connected with the top of the second circular ring 2; a plurality of sliding grooves 4 matched with the telescopic rods 3 are formed in the first circular ring 1; one end of the telescopic rod 3 is slidably connected in the sliding groove 4, and the other end of the telescopic rod 3 is fixedly connected to the second circular ring 2.

Specifically, the top end of the first circular ring 1 is connected with the bottom end of the base 23; the bottom end of the second circular ring 2 is connected with the top end of the moving assembly 19; the telescopic rod 3 comprises a plurality of cylinders with gradually reduced inner diameters; the cylinder above the adjacent two cylinders can be contracted into the cylinder below the adjacent two cylinders; meanwhile, a first buffering part and a first locking part are arranged on the outer wall of the bottom end of the upper cylinder, and a second buffering part matched with the first buffering part and a second locking part matched with the first locking part are arranged on the inner wall of the top end of the lower cylinder; the first buffer part and the second buffer part are arranged up and down correspondingly, and the first locking part and the second locking part are also arranged up and down correspondingly;

starting the air cylinder, wherein the air cylinder drives the first circular ring 1 to ascend, so that each cylinder in the telescopic rod 3 is driven to ascend; when each cylinder rises to a set position, the first buffer part is abutted with the second buffer part to form an elastic bending part, and the elastic bending part can buffer the vibration received by the telescopic rod 3; meanwhile, the first locking part and the second locking part form a stable locking structure to enable two adjacent cylinders to be locked and fixed; with the above arrangement, the fixing mechanism 24 has a large expansion range and a stable support structure.

In one embodiment, the bottom end of the fixing mechanism 24 is provided with a moving assembly 19.

In particular, the moving assembly 19 comprises moving wheels and a height-adjustable driving frame; the top end of the driving frame is connected with the bottom end of the second circular ring 2, and the moving wheels are arranged on the periphery of the bottom end of the driving frame; the height of the driving frame can be adjusted to adapt to uneven ground.

In one embodiment, the moving assembly 19 further comprises a braking mechanism.

Specifically, the brake mechanism comprises a brake pad, and the brake pad is arranged above the movable wheel; the moving wheel drives the portable arrow throwing robot to move; when the portable arrow throwing robot moves to a set position, the brake mechanism is started, the movable wheels brake, so that the portable arrow throwing robot is fixed in position, and the displacement is avoided.

In one embodiment, the master mechanism 20 comprises a master box; an arrow storage box, an arrow transmission mechanism and a clamping mechanism are arranged in the main control box; the arrow storage box is arranged on the upper half part of the main control box and is connected with the inner wall of the main control box; the arrow transmission mechanism and the clamping mechanism are arranged on the lower half part of the main control box and are arranged on a bottom plate of the main control box; the arrow removing box is arranged above the arrow conveying mechanism, and the clamping mechanism is arranged on the side of the arrow conveying mechanism; the clamping mechanism comprises a clamping seat 5, a clamping assembly 6 and a pushing assembly; the bottom end of the clamping seat 5 is hinged with the bottom plate, and the top end of the clamping seat 5 is connected with the clamping assembly 6; the clamping assembly 6 comprises a supporting plate arranged horizontally and two clamping plates arranged oppositely; two ends of the supporting plate are respectively connected with the bottom ends of the two clamping plates and form a certain included angle with the clamping plates; the supporting plate and the two clamping plates form a clamping groove for clamping an arrow; the pushing assembly is arranged on one side of the opening of the clamping groove and connected with the bottom plate.

Specifically, the holder 5 comprises a hollow cylinder; a balance spring and a balance column are arranged in the hollow cylinder, one end of the balance spring is connected with the bottom end of the hollow cylinder, the other end of the balance spring is connected with the bottom end of the balance column, and the top end of the balance column is connected with the bottom end of the supporting plate; the balance column is provided with a sliding chute 4 matched with the hollow cylinder, and the balance column is connected with the hollow cylinder in a sliding manner through the sliding chute 4; the clamping seat 5 increases the stability of the connecting structure with the clamping assembly 6 through the balance spring and the balance column; the pushing assembly comprises a push rod, a push block and a second motor; the second motor is arranged on the bottom plate, the top end of the second motor is connected with the bottom end of the push rod, and the top end of the push rod is connected with the push block; the height of the push rod is consistent with that of the supporting plate, so that the push block can push the arrow branches in the clamping groove out and throw the arrow branches into an arrow throwing container conveniently.

When the portable arrow shooting robot is used, the portable arrow shooting robot moves to a set place through the moving assembly 19, and the moving wheels are braked through the braking mechanism, so that the portable arrow shooting robot is fixed at the set place to avoid displacement;

the fixing mechanism 24 adjusts the height according to the height difference and the distance between the main body of the arrow throwing robot and the arrow throwing container, so that the main body of the robot is adjusted to a proper height, and the arrow throwing is facilitated; in an initial state, two ends of the telescopic rod 3 respectively form a certain inclination angle with the first circular ring 1 and the second circular ring 2; as the robot main body rises, one end of the telescopic rod 3 slides in the chute 4; the sliding groove 4 is provided with a certain stroke, and a lock catch is arranged at the end of the stroke; when the telescopic rod 3 slides to the terminal, the screw cap of the telescopic rod 3 is clamped in the lock catch, and at the moment, two ends of the telescopic rod 3 are respectively and vertically connected with the first circular ring 1 and the second circular ring 2, so that a stable supporting structure is formed;

if the height of the robot main body is not adjusted to the set height, starting the air cylinder, driving the first circular ring 1 to ascend by the air cylinder and driving the cylinders in the telescopic rod 3 to be pulled out layer by layer so as to form a stable supporting structure, and enabling the robot main body to ascend to the set height through the air cylinder;

when an arrow is thrown, the arrow branches fall into the arrow conveying mechanism from the bottom end of the arrow storage box, and the arrow conveying mechanism conveys the arrow branches to the clamping mechanism; the arrow branches are clamped in the clamping grooves, and the arrow throwing angle is adjusted through the clamping seat 5; starting the second motor, wherein the second motor drives the push rod to push the push block into the clamping groove so as to push the arrow branches out of the clamping groove and throw the arrow branches into the arrow throwing container;

after the arrow is thrown, the robot main body is subjected to a certain impact force, the impact force is transmitted to the buffer mechanism 22 through the rotating mechanism 21, and the impact force is buffered by layers in the transmission process, so that the stability of the robot main body structure is improved; when the impact force is transmitted to the rotating mechanism 21, the elastic member 18 buffers the impact force through elastic deformation, and further consumes the impact force through the shock absorption portion 16; when the impact force is transmitted to the buffer mechanism 22, the buffer mechanism 22 further consumes the impact force through elastic deformation, so that the stability of the overall structure of the portable arrow throwing robot is further improved;

when the portable arrow throwing robot needs to be carried outside, the fixing mechanism 24 lifts the portable arrow throwing robot to a proper height, and the robot main body and the fixing mechanism 24 are detached, so that the occupied volume is reduced, and the portable arrow throwing robot is convenient to carry or transport.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.