CN111991781B

CN111991781B - Reaction force training equipment for martial arts training

Info

Publication number: CN111991781B
Application number: CN202010836276.9A
Authority: CN
Inventors: 马灵娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-08-06
Anticipated expiration: 2040-08-19
Also published as: CN111991781A

Abstract

The invention provides a reaction force training device for martial arts training, relates to the technical field of martial arts reaction training, and solves the problem that the synchronous motion of other training structures is realized to improve the training effect while a part of training structures are driven to train through structural improvement; the problem of blade type heat dissipation cannot be realized through the linkage of the structural improvement while the striking training is realized. A reaction force training device for martial arts training comprises a base; fixedly connected with bracing piece on the base, and install first exercise structure on the bracing piece to first exercise structure is last to install heat radiation structure. Because of the equal threaded connection has one to be used for dialling the fixed fixing bolt of piece rigidity on every block of dialling, and the cylinder pole, dial the piece and dial the fixing bolt on the piece and constitute the degree of difficulty regulation structure jointly to can realize the adjustment of slide bar stirring opportunity, and then realized the exercise degree of difficulty.

Description

Reaction force training equipment for martial arts training

Technical Field

The invention belongs to the technical field of martial arts reaction training, and particularly relates to a reaction force training device for martial arts training.

Background

Martial arts are a inheriting technology of ancient military wars, martial arts can build up the body and defend enemies to attack, the martial arts can use 'attack prevention' as technical guide to lead a reviewer to enter a traditional teaching (martial arts) mode of knowing the laws of human and nature and social objective, and the martial arts can be used for guiding and guaranteeing the civilization of human materials.

As in application No.: CN201910138524.X, the invention discloses a reaction force training equipment of wushu training, relates to wushu reaction training technical field, and this reaction force training equipment of wushu training, including the base, is provided with the lift rotary device on the base, and the top of lift rotary device is provided with reaction force training device, and reaction force training device includes: first box, first working chamber and second working chamber are established into to inside the opening of first box, set up check out test set in the first working chamber, set up pushing equipment in the second working chamber, check out test set is used for detecting pressure after, transmits to the controller, controller control pushing equipment pushes away hits the piece, training personnel hit the piece through constantly hitting to hit the convex piece of hitting and carry out the reaction force training, make personnel's hand muscle and joint more nimble, improve personnel's wushu and go out fist defensive speed, and the multipoint is strain response training effect rapidly better.

The reactive training apparatus similar to the martial arts training apparatus of the above application currently suffers from the following disadvantages:

one is that the training structure of the existing device is single, and is a single structure, but the training effect cannot be improved by realizing the synchronous motion of other training structures while driving part of the training structure to train through structural improvement; moreover, the auxiliary function is not sound enough, and the blade type heat dissipation can not be realized through linkage while the hitting training is realized through structural improvement; finally, most of the existing devices are fixed structures, and the adjustment of the difficulty of structure adjustment cannot be realized.

Therefore, in view of the above, research and improvement are made on the existing structure and defects, and a reaction training device for martial arts training is provided, so as to achieve the purpose of higher practical value.

Disclosure of Invention

In order to solve the technical problems, the invention provides a reaction force training device for martial arts training, aiming at solving the problems that the existing device has a single training structure and is an independently arranged structure, and the training effect cannot be improved by driving part of the training structure to train and synchronously moving other training structures at the same time through structural improvement; moreover, the auxiliary function is not sound enough, and the blade type heat dissipation can not be realized through linkage while the hitting training is realized through structural improvement; finally, most of the existing devices are fixed structures, and the problem of adjustment of difficulty in structural adjustment cannot be solved.

The purpose and the efficacy of the reaction force training equipment for martial art training are achieved by the following specific technical means:

a reaction force training device for martial arts training comprises a base; the base is fixedly connected with a supporting rod, a first exercise structure is arranged on the supporting rod, and a heat dissipation structure is arranged on the first exercise structure; a second exercise structure is welded on the supporting rod, a shifting structure is arranged on the second exercise structure, and a driving structure is arranged on the shifting structure; the shifting structure further comprises a gear C, and the gear C is installed on the cylindrical rod; the driving structure comprises a sliding seat B, a sliding arm and a tooth row, the sliding seat B is welded on the rotating connecting seat B, and the sliding seat B is connected with the sliding arm in a sliding manner; the sliding arm is welded with a tooth row, the tooth row is meshed with the gear C, and the gear C, the cylindrical rod and the poking block are in a rotating state when the sliding arm and the tooth row move upwards; the driving structure further comprises a stress block, the stress block is welded at the tail of the sliding arm, and the stress block is of a conical structure; when the force-bearing arm rotates, the force-bearing arm is contacted with the force-bearing block, and the force-bearing block and the sliding arm are in an upward movement state.

Furthermore, the first exercise structure comprises two baffle rings, two rotating seats and a stressed arm, the two baffle rings are welded on the supporting rod, and one rotating seat is rotatably connected between the two baffle rings on the supporting rod; the rotating seat is welded with a force receiving arm, and the baffle ring, the rotating seat and the force receiving arm jointly form a rotating striking structure.

Furthermore, the first exercise structure further comprises a gear A, a sliding seat A and a rectangular plate, wherein the gear A is welded on the rotating seat; the sliding seat A is welded on the force receiving arm, and a rectangular plate is connected in the sliding seat A in a sliding mode; the sliding seat A is connected with a locking bolt for fastening a rectangular plate in a threaded manner, and the sliding seat A and the rectangular plate jointly form a difficulty increasing type test structure.

Further, heat radiation structure is including rotating connecting seat A, pivot B and blade, it welds on rotating the seat to rotate connecting seat A, and rotates and be connected with a pivot B on the connecting seat A to install the blade on the pivot B.

Furthermore, the heat dissipation structure also comprises a rotating shaft A and a gear B, wherein the rotating shaft A is rotatably connected to the rotating connecting seat A, and the gear B is installed on the rotating shaft A; the gear B is meshed with the gear A, the rotating shaft A is meshed with the rotating shaft B through a bevel gear, and the rotating shaft A, the rotating shaft B and the blades are in a rotating state when the rotating seat and the stress arm are impacted to rotate.

Furthermore, the second exercise structure comprises a rectangular seat, a cylindrical rod, hitting balls, a sliding rod and an elastic piece, wherein the rectangular seat is welded on the top end face of the supporting rod, the rectangular seat is rotatably connected with the cylindrical rod, and the cylindrical rod is rotatably connected with six hitting balls in a rectangular array shape; the six sliding rods are arranged and are connected to the rectangular seat in a rectangular array in a sliding manner; elastic parts are sleeved on the six sliding rods, and the six sliding rods are respectively aligned with the six hitting ball positions.

Furthermore, the toggle structure comprises a rotary connecting seat B, a cylindrical rod and a toggle block; the rotating connecting seat B is welded on the rectangular seat, and a cylindrical rod is rotatably connected on the rotating connecting seat B; six shifting blocks are arranged on the cylindrical rod in a rectangular array shape and are aligned with the six sliding rods respectively; when the shifting block rotates along with the cylindrical rod, the shifting block is contacted with the sliding rod, and the sliding rod is in a stressed extending state at the moment.

Furthermore, each poking block is connected with a fixing bolt for fixing the position of the poking block in a threaded manner, and the cylindrical rod, the poking block and the fixing bolt on the poking block form a difficulty adjusting structure together.

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

improved and hit the structure, when beating first exercise structure through the improvement, can realize the linkage action of second exercise structure, and can also realize that heat radiation structure dispels the heat in step, specifically as follows: firstly, two baffle rings are arranged, the two baffle rings are welded on a support rod, and a rotating seat is rotatably connected between the two baffle rings on the support rod; a force-bearing arm is welded on the rotating seat, and the baffle ring, the rotating seat and the force-bearing arm form a rotating striking structure; secondly, the rotating shaft A is rotatably connected to the rotating connecting seat A, and the rotating shaft A is provided with a gear B; the gear B is meshed with the gear A, and the rotating shaft A, the rotating shaft B and the blades are in a rotating state when the rotating seat and the stress arm are impacted to rotate, so that heat dissipation can be realized in the process of impacting the stress arm; thirdly, the rectangular seat is welded on the top end face of the support rod, the rectangular seat is rotatably connected with a cylindrical rod, and the cylindrical rod is rotatably connected with six hitting balls in a rectangular array shape; the six sliding rods are arranged and are connected on the rectangular seat in a rectangular array shape in a sliding manner; the six sliding rods are respectively sleeved with an elastic part and are respectively aligned with the six hitting balls, so that the hitting balls rotate when the sliding rods extend out; fourthly, six poking blocks are arranged on the cylindrical rod in a rectangular array shape and are aligned with the six sliding rods respectively; when the poking block rotates along with the cylindrical rod, the poking block is contacted with the sliding rod, and the sliding rod is in a stressed extending state at the moment, so that the driving of hitting balls is realized; fifthly, the sliding seat B is welded on the rotating connecting seat B, and the sliding seat B is internally and slidably connected with a sliding arm; the sliding arm is welded with a tooth row which is meshed with the gear C, and the gear C, the cylindrical rod and the shifting block are in a rotating state when the sliding arm and the tooth row move upwards, so that the shifting block is driven; sixthly, the stress block is welded at the tail part of the sliding arm and is of a conical structure; when the force-bearing arm rotates, the force-bearing arm is contacted with the force-bearing block, and the force-bearing block and the sliding arm are in an upward movement state at the moment, so that the rotation of the gear C is realized.

The exercise structure is improved, and the adjustment of difficulty can be realized through the improvement, specifically as follows: firstly, the gear A is welded on the rotating seat; the sliding seat A is welded on the force receiving arm, and a rectangular plate is connected in the sliding seat A in a sliding mode; a locking bolt for fastening the rectangular plate is connected to the sliding seat A in a threaded manner, and the sliding seat A and the rectangular plate jointly form a difficulty increasing type test structure; secondly, because of equal threaded connection has one to be used for dialling the fixed fixing bolt of piece rigidity on every block of dialling, and the cylinder pole, dialled the fixed bolt on piece and the block of dialling and formed the degree of difficulty jointly and adjusted the structure to can realize the adjustment that the slide bar was stirred the opportunity, and then realized the exercise degree of difficulty.

Drawings

Fig. 1 is a schematic axial view of the present invention.

Fig. 2 is an enlarged schematic view of fig. 1 at a.

Fig. 3 is an enlarged schematic view of fig. 1 at B according to the present invention.

Fig. 4 is a schematic axial view of the present invention in another direction of fig. 1.

Fig. 5 is an enlarged view of the structure of fig. 4C according to the present invention.

Fig. 6 is an enlarged view of fig. 4D according to the present invention.

FIG. 7 is an axial view of the second exercise configuration, the toggle configuration and the drive configuration of the present invention.

Fig. 8 is an enlarged view of fig. 7 at E according to the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a base; 2. a support bar; 3. a first exercise structure; 301. a baffle ring; 302. a rotating seat; 303. a force-bearing arm; 304. a gear A; 305. a sliding seat A; 306. a rectangular plate; 4. a heat dissipation structure; 401. rotating the connecting seat A; 402. a rotating shaft A; 403. a gear B; 404. a rotating shaft B; 405. a blade; 5. a second exercise structure; 501. a rectangular base; 502. a cylindrical rod; 503. hitting a ball; 504. a slide bar; 505. an elastic member; 6. a toggle structure; 601. rotating the connecting seat B; 602. a cylindrical rod; 603. a shifting block; 604. a gear C; 7. a drive structure; 701. a sliding seat B; 702. a slide arm; 703. a tooth row; 704. and a stress block.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

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.

Example (b):

as shown in figures 1 to 8:

the invention provides a reaction force training device for martial arts training, which comprises a base 1; a support rod 2 is fixedly connected to the base 1, a first exercise structure 3 is mounted on the support rod 2, and a heat dissipation structure 4 is mounted on the first exercise structure 3; a second exercise structure 5 is welded on the support rod 2, a shifting structure 6 is installed on the second exercise structure 5, and a driving structure 7 is installed on the shifting structure 6; referring to fig. 7 and 8, the toggle structure 6 further comprises a gear C604, and the gear C604 is mounted on the cylindrical rod 602; the driving structure 7 comprises a sliding seat B701, a sliding arm 702 and a tooth row 703, the sliding seat B701 is welded on the rotating connecting seat B601, and the sliding seat B701 is connected with the sliding arm 702 in a sliding way; a gear row 703 is welded on the sliding arm 702, the gear row 703 is meshed with the gear C604, and when the sliding arm 702 and the gear row 703 move upwards, the gear C604, the cylindrical rod 602 and the toggle block 603 are in a rotating state, so that the drive of the toggle block 603 is realized; referring to fig. 1, the driving structure 7 further includes a force-receiving block 704, the force-receiving block 704 is welded to the rear portion of the sliding arm 702, and the force-receiving block 704 has a tapered structure; when the force receiving arm 303 rotates, it contacts the force receiving block 704, and at this time, the force receiving block 704 and the slide arm 702 are in an upward movement state, thereby achieving the rotation of the gear C604.

Referring to fig. 1, the first exercise structure 3 comprises two baffle rings 301, two rotating seats 302 and a force-bearing arm 303, wherein the two baffle rings 301 are welded on the support rod 2, and one rotating seat 302 is rotatably connected between the two baffle rings 301 on the support rod 2; a force-bearing arm 303 is welded on the rotating seat 302, and the baffle ring 301, the rotating seat 302 and the force-bearing arm 303 form a rotating striking structure together.

Referring to fig. 1, the first exercise structure 3 further comprises a gear a304, a sliding seat a305 and a rectangular plate 306, the gear a304 is welded on the rotating seat 302; the sliding seat A305 is welded on the force receiving arm 303, and a rectangular plate 306 is connected in the sliding seat A305 in a sliding mode; a locking bolt for fastening the rectangular plate 306 is connected to the sliding seat a305 through threads, and the sliding seat a305 and the rectangular plate 306 jointly form a difficulty increasing type test structure.

Referring to fig. 2, the heat dissipating structure 4 includes a rotary connecting seat a401, a rotary shaft B404 and a blade 405, the rotary connecting seat a401 is welded to the rotary seat 302, the rotary connecting seat a401 is rotatably connected to the rotary shaft B404, and the blade 405 is mounted on the rotary shaft B404.

Referring to fig. 2, the heat dissipating structure 4 further includes a rotating shaft a402 and a gear B403, the rotating shaft a402 is rotatably connected to the rotating connecting seat a401, and the gear B403 is mounted on the rotating shaft a 402; the gear B403 is meshed with the gear A304, the rotating shaft A402 is meshed with the rotating shaft B404 through a bevel gear, and the rotating shaft A402, the rotating shaft B404 and the blades 405 are in a rotating state when the rotating seat 302 and the force receiving arm 303 are struck to rotate, so that heat dissipation can be achieved in the process of striking the force receiving arm 303.

Referring to fig. 4 and 6, the second exercise structure 5 comprises a rectangular base 501, a cylindrical rod 502, hitting balls 503, a sliding rod 504 and an elastic member 505, wherein the rectangular base 501 is welded on the top end surface of the support rod 2, one cylindrical rod 502 is rotatably connected to the rectangular base 501, and six hitting balls 503 are rotatably connected to the cylindrical rod 502 in a rectangular array; six sliding rods 504 are arranged, and the six sliding rods 504 are connected to the rectangular base 501 in a rectangular array in a sliding manner; the six sliding rods 504 are respectively sleeved with an elastic member 505, and the six sliding rods 504 are respectively aligned with the six hitting balls 503, so that the hitting balls 503 are in a rotating state when the sliding rods 504 extend.

Referring to fig. 6, the toggle structure 6 includes a rotating connecting seat B601, a cylindrical rod 602 and a toggle block 603; the rotary connecting seat B601 is welded on the rectangular seat 501, and a cylindrical rod 602 is rotatably connected on the rotary connecting seat B601; six toggle blocks 603 are arranged on the cylindrical rod 602 in a rectangular array, and the six toggle blocks 603 are respectively aligned with the six sliding rods 504; when the dial block 603 rotates along with the cylindrical rod 602, the dial block 603 contacts with the sliding rod 504, and the sliding rod 504 is in a stressed extending state, so that the driving of the hitting ball 503 is realized.

Referring to fig. 6, each of the toggle blocks 603 is connected with a fixing bolt for fixing the position of the toggle block 603 in a threaded manner, and the cylindrical rod 602, the toggle blocks 603 and the fixing bolts on the toggle blocks 603 form a difficulty adjusting structure, so that the toggle time of the sliding rod 504 can be adjusted, and the exercise difficulty can be realized.

The specific use mode and function of the embodiment are as follows:

when the force-receiving arm 303 is hit, firstly, two baffle rings 301 are arranged, the two baffle rings 301 are welded on the support rod 2, and a rotating seat 302 is rotatably connected between the two baffle rings 301 on the support rod 2; a force-bearing arm 303 is welded on the rotating seat 302, and the baffle ring 301, the rotating seat 302 and the force-bearing arm 303 form a rotating striking structure; secondly, the rotating shaft A402 is rotatably connected to the rotating connecting seat A401, and the rotating shaft A402 is provided with a gear B403; the gear B403 is meshed with the gear A304, and when the rotating seat 302 and the force receiving arm 303 are struck to rotate, the rotating shaft A402, the rotating shaft B404 and the blades 405 are in a rotating state, so that heat dissipation can be realized in the process of striking the force receiving arm 303; thirdly, as the rectangular seat 501 is welded on the top end surface of the support rod 2, the rectangular seat 501 is rotatably connected with a cylindrical rod 502, and the cylindrical rod 502 is rotatably connected with six hitting balls 503 in a rectangular array shape; six sliding rods 504 are arranged, and the six sliding rods 504 are connected to the rectangular base 501 in a rectangular array in a sliding manner; the six sliding rods 504 are sleeved with elastic pieces 505, and the six sliding rods 504 are respectively aligned with the six hitting balls 503, so that the hitting balls 503 are in a rotating state when the sliding rods 504 extend out; fourthly, because the cylindrical rod 602 is provided with six toggle blocks 603 in a rectangular array, and the six toggle blocks 603 are respectively aligned with the six sliding rods 504; when the toggle block 603 rotates along with the cylindrical rod 602, the toggle block 603 contacts with the sliding rod 504, and the sliding rod 504 is in a stressed extending state, so that the driving of the hitting ball 503 is realized; fifthly, as the sliding seat B701 is welded on the rotating connecting seat B601 and the sliding seat B701 is connected with a sliding arm 702 in a sliding way; a gear row 703 is welded on the sliding arm 702, the gear row 703 is meshed with the gear C604, and when the sliding arm 702 and the gear row 703 move upwards, the gear C604, the cylindrical rod 602 and the toggle block 603 are in a rotating state, so that the drive of the toggle block 603 is realized; sixth, the force-bearing block 704 is welded to the tail of the sliding arm 702, and the force-bearing block 704 is of a conical structure; when the force-receiving arm 303 rotates, the force-receiving block 704 is contacted, and at the moment, the force-receiving block 704 and the sliding arm 702 are in an upward movement state, so that the rotation of the gear C604 is realized;

during the use process, firstly, the gear A304 is welded on the rotating seat 302; the sliding seat A305 is welded on the force receiving arm 303, and a rectangular plate 306 is connected in the sliding seat A305 in a sliding mode; a locking bolt for fastening the rectangular plate 306 is connected to the sliding seat A305 in a threaded manner, and the sliding seat A305 and the rectangular plate 306 jointly form a difficulty increasing type test structure; secondly, because of the equal threaded connection has one to be used for dialling the fixing bolt of block 603 position fixation on every block 603 of dialling, and the cylindrical pole 602, dialling the fixing bolt on block 603 and the block 603 of dialling has constituteed the degree of difficulty adjustment structure jointly to can realize the adjustment of slide bar 504 stir the opportunity, and then realize the exercise degree of difficulty.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A martial arts training reaction training apparatus characterized by: comprises a base (1); the base (1) is fixedly connected with a supporting rod (2), the supporting rod (2) is provided with a first exercise structure (3), and the first exercise structure (3) is provided with a heat dissipation structure (4); a second exercise structure (5) is welded on the support rod (2), a shifting structure (6) is installed on the second exercise structure (5), and a driving structure (7) is installed on the shifting structure (6); the toggle structure (6) further comprises a gear C (604), and the gear C (604) is installed on the cylindrical rod (602); the driving structure (7) comprises a sliding seat B (701), a sliding arm (702) and a tooth row (703), the sliding seat B (701) is welded on the rotating connecting seat B (601), and the sliding seat B (701) is connected with the sliding arm (702) in a sliding manner; a gear row (703) is welded on the sliding arm (702), the gear row (703) is meshed with the gear C (604), and the gear C (604), the cylindrical rod (602) and the toggle block (603) are in a rotating state when the sliding arm (702) and the gear row (703) move upwards; the driving structure (7) further comprises a stress block (704), the stress block (704) is welded at the tail of the sliding arm (702), and the stress block (704) is of a conical structure; when the force-bearing arm (303) rotates, the force-bearing arm is contacted with the force-bearing block (704), and the force-bearing block (704) and the sliding arm (702) are in an upward movement state; the first exercise structure (3) comprises two baffle rings (301), two rotating seats (302) and a stress arm (303), the two baffle rings (301) are welded on the support rod (2), and the rotating seat (302) is rotatably connected between the two baffle rings (301) on the support rod (2); a force-bearing arm (303) is welded on the rotating seat (302), and the baffle ring (301), the rotating seat (302) and the force-bearing arm (303) jointly form a rotating striking structure; the first exercise structure (3) further comprises a gear A (304), a sliding seat A (305) and a rectangular plate (306), wherein the gear A (304) is welded on the rotating seat (302); the sliding seat A (305) is welded on the force receiving arm (303), and a rectangular plate (306) is connected in the sliding seat A (305) in a sliding mode; a locking bolt for fastening the rectangular plate (306) is connected to the sliding seat A (305) in a threaded manner, and the sliding seat A (305) and the rectangular plate (306) jointly form a difficulty increasing type test structure; the heat dissipation structure (4) comprises a rotating connecting seat A (401), a rotating shaft B (404) and blades (405), the rotating connecting seat A (401) is welded on the rotating seat (302), the rotating connecting seat A (401) is rotatably connected with the rotating shaft B (404), and the blades (405) are mounted on the rotating shaft B (404); the heat dissipation structure (4) further comprises a rotating shaft A (402) and a gear B (403), the rotating shaft A (402) is rotatably connected to the rotating connecting seat A (401), and the gear B (403) is mounted on the rotating shaft A (402); the gear B (403) is meshed with the gear A (304), the rotating shaft A (402) is meshed with the rotating shaft B (404) through a bevel gear, and the rotating shaft A (402), the rotating shaft B (404) and the blades (405) are in a rotating state when the rotating seat (302) and the force receiving arm (303) are struck to rotate; the second exercise structure (5) comprises a rectangular seat (501), a cylindrical rod (502), hitting balls (503), a sliding rod (504) and an elastic piece (505), the rectangular seat (501) is welded on the top end face of the supporting rod (2), the rectangular seat (501) is rotatably connected with one cylindrical rod (502), and the cylindrical rod (502) is rotatably connected with six hitting balls (503) in a rectangular array shape; six sliding rods (504) are arranged, and the six sliding rods (504) are connected to the rectangular base (501) in a rectangular array in a sliding mode; the six sliding rods (504) are sleeved with elastic pieces (505), and the six sliding rods (504) are respectively aligned with the six hitting balls (503); the toggle structure (6) comprises a rotary connecting seat B (601), a cylindrical rod (602) and a toggle block (603); the rotating connecting seat B (601) is welded on the rectangular seat (501), and the rotating connecting seat B (601) is rotatably connected with a cylindrical rod (602); six shifting blocks (603) are arranged on the cylindrical rod (602) in a rectangular array shape, and the six shifting blocks (603) are respectively aligned with the six sliding rods (504); when the toggle block (603) rotates along with the cylindrical rod (602), the toggle block (603) is contacted with the sliding rod (504), and the sliding rod (504) is in a stressed extending state; each shifting block (603) is connected with a fixing bolt for fixing the position of the shifting block (603) in a threaded manner, and the cylindrical rod (602), the shifting block (603) and the fixing bolt on the shifting block (603) form a difficulty adjusting structure together.