CN114653044B - Variable multi-ball exercise equipment for physical education teaching - Google Patents

Abstract

The invention discloses variable multi-ball exercise equipment for physical education, which comprises a bottom plate, wherein four corners at the bottom end of the bottom plate are fixedly provided with movable trundles, the side at the top end of the bottom plate is fixedly connected with the side at the bottom end of a supporting box, two sides at one end of the supporting box are fixedly connected with two ends of a handle, and two sides at the middle part of the top end of the supporting box are hinged with electric telescopic rods through movable hinges.

Description

Variable multi-ball exercise equipment for physical education teaching

Technical Field

The invention relates to the technical field of sports goods, in particular to variable multi-ball exercise equipment for sports teaching.

Background

The physical education is a teaching course which is participated in by teachers and students, and the physical education teachers teach students physical knowledge, technology, skills and the like, so that the physical quality of the students can be enhanced, and the learning of the students is ensured. In the sports teaching, students select corresponding sports goods according to their interests to carry out sports exercises, such as basketball, volleyball, football and the like.

In view of the above, chinese patent No. CN201810038328.0 proposes a basketball shooting device for sports teaching. The invention achieves the effects of preventing falling and injury in the exercise process and improving the learning interest of students in the teaching process, and can transfer the attention of the students and generate freshness by adopting a mode of treading down the pedal to throw the basketball, thereby increasing the learning interest of the students. And the ball game practice apparatus of the above patent:

(1) The ball training device in the above patent does not have a variable adaptation function, and when training with balls, because different balls are used in different ways, such as basketball, volleyball and the like, which need to be thrown out by using the device for people to train, and football needs to be thrown out or horizontally shot for people to train, the ball training device cannot adapt to the use of multiple balls, and cannot supply balls in different ways according to requirements, which results in the reduced applicability of the training device;

(2) The ball training device in the patent does not have an adjusting function, when the device is used for supplying different balls, the sizes of the different balls are different, the device is inconvenient to adjust according to the sizes, and the throwing angle of the balls is difficult to adjust by personnel according to requirements, so that the use of the personnel is inconvenient;

(3) Ball exercise equipment in the above-mentioned patent does not have intermittent type and arranges the material function, when using ball exercise equipment, needs a plurality of balls of continuous intermittent type's discharge, does not have intermittent type and arranges the material function and lead to personnel to be difficult to discharge ball according to the demand, influences personnel's ball exercise progress.

We have therefore proposed a variable multi-ball exercise apparatus for physical education to solve the problems set out above.

Disclosure of Invention

The invention aims to provide variable multi-ball training equipment for physical education, which solves the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: a variable multi-ball type exercise device for physical education comprises a bottom plate, wherein movable trundles are fixedly arranged at four corners of the bottom end of the bottom plate, the side of the top end of the bottom plate is fixedly connected with the side of the bottom end of a supporting box, two sides of one end of the supporting box are fixedly connected with two ends of a handle, two sides of the middle of the top end of the supporting box are hinged with electric telescopic rods through movable hinges, the output ends of the two electric telescopic rods are hinged with two sides of the bottom end of a ball guide plate through the movable hinges, and two sides of one end of the ball guide plate are fixedly connected with one ends of two cross rods respectively;

the two sides of the outer wall of the supporting box are respectively and rotatably connected with rotating shafts arranged at the bottoms of one sides of the two rotating rods through bearings, the top of one side of the two rotating rods is rotatably connected with the two sides of the outer wall of an acting shaft through bearings, the acting plate is fixedly arranged at one side of the acting shaft, a supporting column is fixedly arranged in a groove formed in one side of the acting plate, a rotating sleeve is inserted into the outer wall of the supporting column, a mounting box is fixedly arranged at the top of the other side of one rotating rod, the two sides of the inner wall of the mounting box are rotatably connected with the two sides of the outer wall of a worm wheel through bearings, one end of the worm wheel is fixedly connected with one end of the acting shaft, the top end of the worm wheel is meshed with the bottom end of a worm, one end of the worm is fixedly connected with the output end of a ball serving motor, a driving box is fixedly arranged at one side of the top ends of the two transverse rods, springs are respectively and are fixedly connected with the two sides of the outer wall of the stressed shaft, a stressed plate is fixedly arranged at one side of the top end of the stressed plate;

the utility model discloses a hair dryer, including bottom plate, regulation opening, regulation screw outer wall, regulation screw, motor, first backup pad, second backup pad, first gear wheel, second gear wheel, the regulation opening has been seted up to one side on bottom plate top, it is connected with the regulation lead screw to rotate through the bearing between regulation opening inner wall both sides, the adjustment motor is installed to the one end of bottom plate one side, the output of adjustment motor and the one end fixed connection of regulation lead screw, the regulation screw threaded connection that the both sides of regulation lead screw outer wall were seted up with the middle part of two regulating plate one sides respectively, two the screw thread opposite direction of regulation screw, every the top of regulating plate one side is provided with first backup pad and second backup pad respectively, accelerating motor is installed to one side of first backup pad bottom, one side on first backup pad top is rotated through the bearing and is connected with the middle part of transmission shaft outer wall, the top of transmission shaft and the bottom fixed connection of second gear wheel, one side of second gear wheel meshes with one side of second pinion, the second pinion passes through the bearing and is connected with the middle part of second backup pad top, the top of second pinion is equipped with the rubber ball-out wheel, the rubber ball-out wheel is all connected.

Preferably, install the rotation motor in the mounting groove that one side on support box top was seted up, the output of rotating the motor and the one end fixed connection of one of them pivot, two the top of dwang respectively with the bottom fixed connection of two horizontal poles, the fixed installation piece that is equipped with in top of one of them dwang one end, the service motor is installed to one side of installation piece.

Preferably, the other two ends of the cross rods are respectively and fixedly connected with the two sides of one end of the protective cover, and the two sides of the top end of the ball guide plate are respectively and fixedly connected with the two sides of the bottom end of the protective box.

Preferably, the two sides of the protection box are both provided with moving long holes, two moving studs are inserted into the moving long holes, one ends of the two moving studs are fixedly connected with the two sides of the connecting plate respectively, one end of the connecting plate is fixedly connected with one end of the guide-in arc plate, and one side of the outer wall of each moving stud is in threaded connection with a limiting spiral ring.

Preferably, two ends of two sides of the inner wall of the adjusting opening are respectively and fixedly connected with two ends of the two guide rods, and the guide holes formed in two ends of one side of each adjusting plate are respectively and alternately connected with one sides of the outer walls of the two guide rods.

Preferably, an arc-shaped guide rod is fixedly arranged in the middle of the top end of the bottom plate, one end of the arc-shaped guide rod is fixedly connected with the middle of one end of the ball guide cover, a ball guide hole is formed in the other side of the top end of the support box, one side of the ball guide hole is fixedly communicated with the top end of the ball guide cover, and the other side of the ball guide hole is fixedly communicated with the bottom end of the conveying pipe.

Preferably, two edges on support box top all are fixed and are equipped with the bracing piece, two the bottom of bracing piece is respectively placed two edges fixed connection of box bottom with the ball, the ball is placed one side of box and is installed driving motor, the ball is placed the fixed intercommunication of one end of ball hole and conveyer pipe that the bottom of box one end was seted up, the movable mouthful has been seted up at the top of conveyer pipe outer wall, the inner wall of movable mouthful alternates with one side of leading-in arc board outer wall and is connected.

Preferably, driving motor's output and the one end fixed connection of driving-disc, one side of the driving-disc other end is rotated through the one end of round pin axle with the connecting rod and is connected, the other end of connecting rod articulates through connecting the hinge has the drive post, the middle part of drive post outer wall and ball place the spacing cover interlude that one side of box one end was equipped with and are connected, the one end of drive post is articulated with one side of circular picture peg, the trompil that the outer wall of circular picture peg was seted up with the top of conveyer pipe one side alternates and is connected.

Preferably, the fixed controller that is equipped with in edge of support box one side, integrated in the controller have adjusting motor control switch, electric telescopic handle control switch, rotation motor control switch, service motor control switch, driving motor control switch and acceleration motor control switch, adjusting motor, two electric telescopic handle, rotation motor, service motor, driving motor and two acceleration motor are respectively through adjusting motor control switch, electric telescopic handle control switch, rotation motor control switch, service motor control switch, driving motor control switch and acceleration motor control switch and external power supply electric connection.

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

(1) The worm connected with the ball serving motor drives the worm wheel connected with the action shaft, the action plate connected with the action shaft is connected with the rotating sleeve through the supporting column, a clockwork spring in the driving box is connected with a stress shaft connected with the stress plate, balls can be thrown out in a throwing mode in the mode, a first supporting plate on the adjusting plate is connected with the accelerating motor, a first large gear is meshed with a first small gear, the first small gear is meshed with a second small gear connected with the ball serving wheel through a second large gear connected with a transmission shaft, the balls can be horizontally shot in the mode, the ball exercising device has a variable adapting function, personnel can carry out different launching modes according to selection of the balls, and the ball exercising device has higher applicability and ensures the ball exercising effect of the personnel;

(2) The rotating shaft connected through the rotating rod is connected with the rotating motor, the ball guide plate is hinged with the output end of the electric telescopic rod through the movable hinge, the inclination angle of the ball guide plate and the cross rod connected with the ball guide plate can be adjusted, so that the throwing angle of balls is changed, the practice of personnel is facilitated, meanwhile, the adjusting screw rod connected with the adjusting motor is in threaded connection with two adjusting plates, the adjusting plates are connected with a first supporting plate and a second supporting plate, the personnel can adjust the distance between two service wheels according to requirements, the horizontal launching of the balls is guaranteed, and the use of the personnel is more convenient;

(3) Place box and conveyer pipe intercommunication through the ball class, the leading-in arc board that the activity opening that the conveyer pipe was seted up and the connecting plate are connected alternates, can adjust the position of leading-in arc board according to the demand, thereby make the ball class or get into and lead the ball board or get into through the conveyer pipe and lead the ball cover, and then adapt to the service mode of different balls and supply the ball, the ball class is placed the driving motor that the box is connected and is connected with the driving-disc, the connecting rod that the driving-disc rotates through the round pin axle to be connected is articulated through connecting hinge and actuating lever, the driving post is worn to insert with spacing cover and is connected, the driving post is articulated with circular picture peg, the effect of accessible circular picture peg controls the ball class and places the closure that the box goes out the ball hole, and then realize the intermittent type of ball and discharge, make things convenient for personnel's ball exercise.

Drawings

FIG. 1 is a schematic structural view of the present invention;

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

FIG. 3 is a schematic structural view of the ball throwing mechanism of the present invention;

FIG. 4 is a schematic view of the coupling structure of the rotary rod according to the present invention;

FIG. 5 is a schematic view of the connection structure of the ball storage case according to the present invention;

FIG. 6 is an enlarged schematic view of the invention at A in FIG. 5;

FIG. 7 is a schematic structural view of a horizontal serve mechanism of the present invention;

FIG. 8 is a schematic view of the connection structure of the adjustment plate according to the present invention;

fig. 9 is a schematic view of a connection structure of the acceleration motor of the present invention.

In the figure: 1. a base plate; 2. adjusting the motor; 3. a movable caster; 4. a support box; 5. a handle; 6. rotating the rod; 7. a delivery pipe; 8. a ball holding box; 9. a protective case; 10. a protective cover; 11. an electric telescopic rod; 12. rotating the motor; 13. a connecting plate; 14. leading in an arc plate; 15. a cross bar; 16. a drive cartridge; 17. a ball guide plate; 18. mounting a box; 19. a worm gear; 20. a worm; 21. a service motor; 22. an action plate; 23. a force-bearing shaft; 24. a stress plate; 25. a ball serving arc block; 26. an action shaft; 27. a support pillar; 28. rotating the sleeve; 29. a drive motor; 30. a drive disc; 31. a connecting rod; 32. a drive column; 33. a limiting sleeve; 34. an adjusting plate; 35. a ball serving wheel; 36. a rubber sleeve; 37. an arc-shaped guide rod; 38. a ball guide cover; 39. an acceleration motor; 40. a first bull gear; 41. a first pinion gear; 42. a second bull gear; 43. a second pinion gear.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 9, the present invention provides a technical solution: a variable multi-ball exercise device for physical education comprises a bottom plate 1, an adjusting motor 2, a movable caster 3, a supporting box 4, a handle 5, a rotating rod 6, a conveying pipe 7, a ball placing box 8, a protecting box 9, a protecting cover 10, an electric telescopic rod 11, a rotating motor 12, a connecting plate 13, a guiding arc plate 14, a cross rod 15, a driving box 16, a ball guide plate 17, a mounting box 18, a worm gear 19, a worm 20, a ball serving motor 21, an acting plate 22, a force bearing shaft 23, a force bearing plate 24, a ball serving arc block 25, an acting shaft 26, a supporting column 27, a rotating sleeve 28, a driving motor 29, a driving disk 30, a connecting rod 31, a driving column 32, a limiting sleeve 33, an adjusting plate 34, a ball serving wheel 35, a rubber sleeve 36, an arc-shaped guide rod 37, a ball guide cover 38, an accelerating motor 39, a first large gear 40, a first small gear 41, a second large gear 42 and a second small gear 43, movable casters 3 are fixedly arranged at four corners of the bottom end of a bottom plate 1, the side of the top end of the bottom plate 1 is fixedly connected with the side of the bottom end of a supporting box 4, two sides of one end of the supporting box 4 are fixedly connected with two ends of a handle 5, two sides of the middle part of the top end of the supporting box 4 are hinged with electric telescopic rods 11 through movable hinges, output ends of the two electric telescopic rods 11 are hinged with two sides of the bottom end of a ball guide plate 17 through the movable hinges, and two sides of one end of the ball guide plate 17 are fixedly connected with one end of two cross rods 15 respectively;

as shown in fig. 1-4, two sides of the outer wall of the support box 4 are rotatably connected with the rotating shaft arranged at the bottom of one side of the two rotating rods 6 through bearings, the top of one side of the two rotating rods 6 is rotatably connected with two sides of the outer wall of the action shaft 26 through bearings, one side of the action shaft 26 is fixedly provided with an action plate 22, a support column 27 is fixedly arranged in a groove formed in one side of the action plate 22, the outer wall of the support column 27 is inserted with a rotating sleeve 28, the top of the other side of one of the rotating rods 6 is fixedly provided with a mounting box 18, two sides of the inner wall of the mounting box 18 are rotatably connected with two sides of the outer wall of a worm wheel 19 through bearings, one end of the worm wheel 19 is fixedly connected with one end of the action shaft 26, the top end of the worm wheel 19 is meshed with the bottom end of a worm 20, one end of the worm 20 is fixedly connected with the output end of a ball-serving motor 21, one side of the top ends of the two cross rods 15 is fixedly provided with a driving box 16, the inner wall of each driving box 16 is provided with a clockwork spring, the ends of the inner walls of the two clockwork-spring inner walls are fixedly connected with two sides of the outer wall of the work-serving shaft 23, one side of the work-shaft 23 is fixedly provided with a work-up plate 24, and one work-up block 25 is arranged on one side of the work-up plate 24;

as shown in fig. 1-2 and 7-9, an adjusting opening is formed on one side of the top end of a bottom plate 1, an adjusting screw is rotatably connected between two sides of the inner wall of the adjusting opening through a bearing, an adjusting motor 2 is mounted at one end of one side of the bottom plate 1, the output end of the adjusting motor 2 is fixedly connected with one end of the adjusting screw, two sides of the outer wall of the adjusting screw are respectively in threaded connection with adjusting screw holes formed in the middle of one side of two adjusting plates 34, the thread directions of the two adjusting screw holes are opposite, a first supporting plate and a second supporting plate are respectively arranged at the top of one side of each adjusting plate 34, an accelerating motor 39 is mounted at one side of the bottom end of the first supporting plate, one side of the top end of the first supporting plate is rotatably connected with a first large gear 40 through a bearing, the bottom end of the first large gear 40 is fixedly connected with the output end of the accelerating motor 39, one side of the first large gear 40 is engaged with one side of a first small gear 41, the top end of the first small gear 41 is fixedly connected with the bottom end of a transmission shaft, one side of the top end of the second supporting plate is rotatably connected with the middle of the outer wall of the transmission shaft through a bearing, the top end of a second small gear is fixedly connected with the top end of a ball wheel 35, one side of the second small gear 42, and a ball wheel 35 is connected with the top end of the ball wheel 35 through a bearing, and a rubber sleeve 43, and a ball wheel 35;

as shown in fig. 1-4 and 7-9, a rotary motor 12 is installed in an installation groove formed on one side of the top end of the support box 4, the output end of the rotary motor 12 is fixedly connected with one end of one of the rotary shafts, the top ends of the two rotary shafts 6 are respectively fixedly connected with the bottom ends of the two cross rods 15, an installation block is fixedly arranged on the top of one end of one of the rotary shafts 6, a service motor 21 is installed on one side of the installation block, the other two ends of the two cross rods 15 are respectively fixedly connected with the two sides of one end of the protective cover 10, the two sides of the top end of the ball guide plate 17 are respectively fixedly connected with the two sides of the bottom end of the protective box 9, the two sides of the protective box 9 are respectively provided with a movable long hole, and movable studs are respectively inserted into the two movable long holes, one end of each movable stud is fixedly connected with two sides of the connecting plate 13, one end of the connecting plate 13 is fixedly connected with one end of the guide arc plate 14, one side of the outer wall of each movable stud is in threaded connection with a limiting spiral ring, two ends of two sides of the inner wall of the adjusting opening are fixedly connected with two ends of the two guide rods, a guide hole formed in two ends of one side of each adjusting plate 34 is in penetrating connection with one side of the outer wall of each guide rod, an arc-shaped guide rod 37 is fixedly arranged in the middle of the top end of the bottom plate 1, one end of the arc-shaped guide rod 37 is fixedly connected with the middle of one end of the ball guide cover 38, a ball guide hole is formed in the other side of the top end of the support box 4, one side of the ball guide hole is fixedly communicated with the top end of the ball guide cover 38, and the other side of the ball guide hole is fixedly communicated with the bottom end of the conveying pipe 7;

as shown in fig. 1 and 5-6, two corners of the top of the supporting box 4 are both fixedly provided with a supporting rod, the bottom ends of the two supporting rods are respectively fixedly connected with two corners of the bottom of the ball placing box 8, one side of the ball placing box 8 is provided with a driving motor 29, a ball outlet hole formed in the bottom of one end of the ball placing box 8 is fixedly communicated with one end of the conveying pipe 7, the top of the outer wall of the conveying pipe 7 is provided with a movable opening, the inner wall of the movable opening is inserted and connected with one side of the outer wall of the guiding arc plate 14, the output end of the driving motor 29 is fixedly connected with one end of a driving disc 30, one side of the other end of the driving disc 30 is rotatably connected with one end of a connecting rod 31 through a pin shaft, the other end of the connecting rod 31 is hinged with a driving column 32 through a connecting hinge, the middle part of the outer wall of the driving column 32 is inserted and connected with a limiting sleeve 33 arranged on one side of one end of the ball placing box 8, the one end of drive column 32 is articulated with one side of circular picture peg, the trompil that the outer wall of circular picture peg was seted up with the top of conveyer pipe 7 one side alternates to be connected, the fixed controller that is equipped with in edge of 4 one sides of support box, integrated regulation motor control switch in the controller, electric telescopic handle control switch, rotate motor control switch, service motor control switch, driving motor control switch and acceleration motor control switch, accommodate motor 2, two electric telescopic handle 11, rotation motor 12, service motor 21, driving motor 29 and two acceleration motor 39 are respectively through regulation motor control switch, electric telescopic handle control switch, rotate motor control switch, service motor control switch, driving motor control switch and acceleration motor control switch and external power supply electric connection.

The working principle of the embodiment is as follows: when the balls are thrown out in an arc line, as shown in fig. 1-6, a person opens the electric telescopic rod 11 and the rotating motor 12, at this time, the rotating motor 12 drives the rotating shaft connected with the rotating rod 6 to rotate, so that the rotating rod 6 can rotate, meanwhile, the rotating rod 6 drives the cross rod 15, the electric telescopic rod 11 acts on the ball guide plate 17 to match the rotation of the cross rod 15, after the inclination angle of the ball guide plate 17 and the cross rod 15 connected with the ball guide plate is adjusted, the person loosens and moves the limit spiral ring connected with the stud, then moves the connecting plate 13 and the leading-in arc plate 14 connected with the connecting plate, so that the leading-in arc plate 14 can enter the movable opening of the conveying pipe 7, so that the balls can enter the ball guide plate 17 from the conveying pipe 7 through the leading-in arc plate 14, the driving motor 29 on the ball placing box 8 is opened, the driving motor 29 drives the driving disc 30 to rotate, the driving disc 30 drives the connecting rod 31 to drive the driving column 32, the driving column 32 moves in the limiting sleeve 33, so as to drive the circular inserting plate to intermittently enter and exit in the open hole formed in the conveying pipe 7, so as to control the gap closing of the ball outlet hole of the ball placing box 8, the balls enter the ball guide plate 17 through the conveying pipe 7 and the guide arc plate 14 after being discharged, the ball serving motor 21 is started, the ball serving motor 21 acts on the worm wheel 19 through the worm 20, the worm wheel 19 drives the action shaft 26 between the rotating rods 6, the action shaft 26 drives the action plate 22 to grab, in the rotating process of the action plate 22, the rotating sleeve 28 on the supporting column 27 is contacted with the side of the stress plate 24, so as to enable the stress plate 24 to rotate along with the rotation, at the moment, the stress plate 24 drives the stress shaft 23 to rotate in the driving box 16, so as to enable the clockwork spring to store elastic potential energy, in the rotating process of the stress plate 24, the balls fall on the ball serving arc block 25 through the ball guide plate 17, and at the moment that the rotating sleeve 28 is contacted and separated with the stress plate 24, the clockwork spring releases elastic potential energy, namely, the stress plate 24 acts through the stress shaft 23, so that the stress plate 24 is quickly reset, balls on the service arc block 25 can be hit and flown, and the balls are thrown out.

If it is necessary to shoot balls horizontally, as shown in fig. 1-2 and 5-9, a person moves the connecting plate 13 and the guiding arc plate 14 connected thereto, so that the guiding arc plate 14 is separated from the opening formed in the conveying pipe 7, and the balls are ensured to fall on the ball guiding cover 38 through the conveying pipe 7, the person opens the adjusting motor 2, the adjusting motor 2 drives the adjusting screw to rotate, so that the adjusting screw acts on the two adjusting plates 34 with opposite threads, the guide hole formed in the adjusting plate 34 moves on the guide rod, so that the distance between the two adjusting plates 34 can be adjusted, so that the distance between the two ball-serving wheels 35 is changed, and the size of the balls is adapted, the person opens the accelerating motor 39, so that the two accelerating motors 39 drive the first gearwheel 40 to rotate, the first gearwheel 40 drives the first pinion 41 to rotate, so as to complete the first-stage acceleration, the first pinion 41 is connected with the second gearwheel 42 through a transmission shaft, the second pinion 43 connected with the ball-serving wheel 35 drives the second pinion 43 connected with the ball-serving wheels 35, so that the two ball-serving wheels 35 can rotate quickly, and the driving motor 29 is opened, so that the balls fall on the conveying pipe 7 through the rubber sleeve 36, so that the balls fall on the guide rod 36, and the ball-serving wheels 35, so as to shoot balls horizontally through the rubber sleeves 35, and the ball-serving wheels 35.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (6)

1. The utility model provides a sports teaching is with variable many balls class exercise equipment, includes bottom plate (1), four edges of bottom plate (1) bottom are all fixed and are equipped with movable truckle (3), the avris on bottom plate (1) top and the avris fixed connection who supports box (4) bottom, the both sides of supporting box (4) one end and the both ends fixed connection of handle (5), the both sides of supporting box (4) top middle part all articulate through the activity hinge has electric telescopic handle (11), two the output of electric telescopic handle (11) is all articulated through the both sides of activity hinge with the both sides of leading football shirt plate (17) bottom, lead the both sides of football shirt plate (17) one end respectively with the one end fixed connection of two horizontal poles (15), its characterized in that:

the two sides of the outer wall of the supporting box (4) are respectively and rotatably connected with the rotating shafts arranged at the bottoms of one sides of the two rotating rods (6) through bearings, the top of one side of the two rotating rods (6) is respectively and rotatably connected with the two sides of the outer wall of the action shaft (26) through bearings, an action plate (22) is fixedly arranged at one side of the action shaft (26), a supporting column (27) is fixedly arranged in a groove formed at one side of the action plate (22), the outer wall of the supporting column (27) is inserted with a rotating sleeve (28), the top of the other side of one of the rotating rods (6) is fixedly provided with a mounting box (18), both sides of the inner wall of the mounting box (18) are rotatably connected with both sides of the outer wall of the worm wheel (19) through bearings, one end of the worm wheel (19) is fixedly connected with one end of the acting shaft (26), the top end of the worm wheel (19) is meshed with the bottom end of the worm (20), one end of the worm (20) is fixedly connected with the output end of the service motor (21), one side of the top ends of the two transverse rods (15) is fixedly provided with a driving box (16), the inner wall of each driving box (16) is provided with a clockwork spring, the ends of the inner walls of the two clockwork springs are respectively fixedly connected with the two sides of the outer wall of the stress shaft (23), a stress plate (24) is fixedly arranged on one side of the stress shaft (23), a ball serving arc block (25) is fixedly arranged on one side of the top end of the stress plate (24);

the regulation opening has been seted up to one side on bottom plate (1) top, be connected with the regulation lead screw through the bearing rotation between the regulation opening inner wall both sides, adjustment motor (2) are installed to the one end of bottom plate (1) one side, the output of adjustment motor (2) and the one end fixed connection of regulation lead screw, the regulation screw threaded connection that the both sides of adjusting the lead screw outer wall were seted up with the middle part of two regulating plates (34) one side respectively, two the screw thread direction of regulation screw is opposite, every the top of regulating plate (34) one side is provided with first backup pad and second backup pad respectively, accelerating motor (39) is installed to one side of first backup pad bottom, one side on first backup pad top is connected with first gear wheel (40) through the bearing rotation, the bottom of first gear wheel (40) and the output fixed connection of accelerating motor (39), one side of first gear wheel (40) meshes with one side of first pinion (41), the top of first pinion (41) and the bottom fixed connection of transmission shaft, one side on second backup pad top is connected with the middle part of second pinion (43) through the bearing rotation, the bottom of second pinion (43) and the second pinion is connected with the top of second pinion (43), the outer wall of each service wheel (35) is fixedly provided with a rubber sleeve (36);

the other two ends of the two cross rods (15) are respectively and fixedly connected with the two sides of one end of the protective cover (10), and the two sides of the top end of the ball guide plate (17) are respectively and fixedly connected with the two sides of the bottom end of the protective box (9);

moving long holes are formed in two sides of the protection box (9), moving studs are inserted into the two moving long holes, one ends of the two moving studs are fixedly connected with two sides of a connecting plate (13) respectively, one end of the connecting plate (13) is fixedly connected with one end of a lead-in arc plate (14), and one side of the outer wall of each moving stud is in threaded connection with a limiting spiral ring;

the fixed arc guide arm (37) that is equipped with in middle part on bottom plate (1) top, the middle part fixed connection of the one end of arc guide arm (37) and ball guide cover (38) one end, the ball guide hole has been seted up to the opposite side on support box (4) top, the fixed intercommunication in one side and the top of ball guide cover (38) in ball guide hole, and the bottom mounting intercommunication of the opposite side and conveyer pipe (7) in ball guide hole.

2. The variable multi-ball exercise apparatus for physical education as claimed in claim 1, wherein: install in the mounting groove that one side on support box (4) top was seted up and rotate motor (12), the output of rotating motor (12) and the one end fixed connection of one of them pivot, two the top of dwang (6) respectively with the bottom fixed connection of two horizontal poles (15), the fixed installation piece that is equipped with in top of one of them dwang (6) one end, service motor (21) are installed to one side of installation piece.

3. The variable multi-ball exercise apparatus for physical education as claimed in claim 1, wherein: the two ends of the two sides of the inner wall of the adjusting opening are respectively and fixedly connected with the two ends of the two guide rods, and the guide holes formed in the two ends of one side of each adjusting plate (34) are respectively and alternately connected with one sides of the outer walls of the two guide rods.

4. The variable multi-ball exercise apparatus for physical education as claimed in claim 2, wherein: support two edges on box (4) top and all fix and be equipped with the bracing piece, two the bottom of bracing piece is respectively placed two edges fixed connection of box (8) bottom with the ball, driving motor (29) are installed to one side that box (8) were placed to the ball, the ball hole that the bottom that box (8) one end was seted up is placed to the ball and the fixed intercommunication of one end of conveyer pipe (7), the expansion gap has been seted up at the top of conveyer pipe (7) outer wall, the inner wall of expansion gap alternates with the one side of leading-in arc board (14) outer wall and is connected.

5. The variable multi-ball exercise apparatus for physical education as claimed in claim 4, wherein: the output of driving motor (29) and the one end fixed connection of driving-disc (30), the one end rotation that the one side of the driving-disc (30) other end was passed through round pin axle and connecting rod (31) is connected, the other end of connecting rod (31) articulates through connecting the hinge has drive post (32), stop collar (33) that one side that box (8) one end was equipped with were placed to the middle part and the ball class of drive post (32) outer wall alternate and are connected, the one end of drive post (32) is articulated with one side of circular picture peg, the trompil that the outer wall of circular picture peg and the top of conveyer pipe (7) one side were seted up alternates and is connected.

6. The variable multi-ball exercise apparatus for physical education as claimed in claim 5, wherein: the fixed controller that is equipped with in edge of support box (4) one side, integrated in the controller have accommodate motor control switch, electric telescopic handle control switch, rotation motor control switch, service motor control switch, driving motor control switch and acceleration motor control switch, accommodate motor (2), two electric telescopic handle (11), rotation motor (12), service motor (21), driving motor (29) and two acceleration motor (39) are respectively through accommodate motor control switch, electric telescopic handle control switch, rotation motor control switch, service motor control switch, driving motor control switch and acceleration motor control switch and external power supply electric connection.

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