CN114653044A - Variable multi-ball exercise equipment for physical education teaching - Google Patents

Abstract

The invention discloses a variable multi-ball exercise device for physical education, which comprises a bottom plate, wherein four corners at the bottom end of the bottom plate are respectively and fixedly provided with a movable caster, 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 at the top end of the supporting box are respectively articulated with an electric telescopic rod through a movable hinge. Has higher applicability and ensures the training effect of the balls of the personnel.

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 physical education. 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. 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 using 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 practice, and football needs to be thrown out or horizontally shot for people to practice, the ball training device cannot adapt to the use of multiple balls, and cannot supply balls in different ways according to requirements, so that the applicability of the training device is reduced;

(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 in order to solve the problems set forth 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 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 part of the top end of the supporting box are hinged with electric telescopic rods through movable hinges, 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 the action shaft through bearings, one side of the action shaft is fixedly provided with an action plate, a support column is fixedly arranged in a groove formed in one side of the action plate, a rotating sleeve is inserted into the outer wall of the support column, one side of the other side of the rotating rod is fixedly provided with a mounting box, 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 action 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, one side of the top ends of the two transverse rods is fixedly provided with a driving box, and the inner wall of each driving box is provided with a spring, the end heads of the inner walls of the two clockwork springs are respectively and fixedly connected with two sides of the outer wall of the stress shaft, a stress plate is fixedly arranged on one side of the stress shaft, and a service arc block is fixedly arranged on one side of the top end of the stress plate;

an adjusting opening is formed in one side of the top end of the bottom plate, an adjusting screw rod is rotatably connected between two sides of the inner wall of the adjusting opening through a bearing, an adjusting motor is installed at one end of one side of the bottom plate, the output end of the adjusting motor is fixedly connected with one end of the adjusting screw rod, two sides of the outer wall of the adjusting screw rod are respectively in threaded connection with adjusting screw holes formed in the middle of one side of two adjusting plates, 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, an accelerating motor is installed on one side of the bottom end of the first supporting plate, a first large gear is rotatably connected to one side of the top end of the first supporting plate through a bearing, the bottom end of the first large gear is fixedly connected with the output end of the accelerating motor, and one side of the first large gear is meshed with one side of a first small gear, the top of first pinion and the bottom fixed connection of transmission shaft, the middle part on one side on second backup pad top is passed through the bearing and is connected with the rotation 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 and one side meshing of second pinion, the second pinion passes through the bearing and is connected with the rotation of the middle part on second backup pad top, the top of second pinion and the bottom fixed connection of service wheel, every the outer wall of service wheel all is fixed and is equipped with the rubber sleeve.

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 protection box is provided with moving long holes on two sides, moving studs are inserted into the moving long holes, one ends of the moving studs are fixedly connected with 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 fix and are equipped with the bracing piece, two the bottom of bracing piece is respectively with two edges fixed connection that the box bottom was placed to the ball, the ball is placed one side of box and is installed driving motor, the ball is placed the fixed intercommunication of the one end of ball outlet hole and conveyer pipe that the bottom of box one end was seted up, the activity mouth has been seted up at the top of conveyer pipe outer wall, the inner wall of activity mouth 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 ball guide plate is hinged with the output end of the electric telescopic rod through the movable hinge, and 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, and the ball guide plate is convenient for personnel to practice;

(3) place box and conveyer pipe intercommunication through the ball class, the leading-in arc board interlude that the movable opening that the conveyer pipe was seted up and the connecting plate is connected, can adjust the position of leading-in arc board according to the demand, thereby make the ball class or get into to lead the ball board or lead the ball cover through the conveyer pipe entering, 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 passes through round pin hub rotation and is connected is articulated with the actuating lever through connecting the hinge, the driving post is interlude with the stop collar and is connected, the driving post is articulated with circular picture peg, the effect of accessible circular picture peg is controlled the ball class and is placed the closure that the box goes out the ball hole, and then realize the intermittent type 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 present 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 placing 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 position 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. 1-9, 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, movable casters 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, wherein the movable casters 3 are fixedly arranged at four corners of the bottom end of the 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 the supporting box 4, two sides of one end of the supporting box 4 are fixedly connected with two ends of the 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 movable hinges, and two sides of one end of the ball guide plate 17 are respectively and fixedly connected with one end of two cross rods 15;

as shown in fig. 1-4, two sides of the outer wall of the supporting box 4 are respectively rotatably connected to the rotating shafts 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 to two sides of the outer wall of the acting shaft 26 through bearings, one side of the acting shaft 26 is fixedly provided with an acting plate 22, a supporting column 27 is fixedly arranged in a groove formed in one side of the acting 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, two sides of the inner wall of the mounting box 18 are rotatably connected to two sides of the outer wall of a worm wheel 19 through bearings, one end of the worm wheel 19 is fixedly connected to one end of the acting 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 to 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 springs are respectively and fixedly connected with two sides of the outer wall of the stress shaft 23, one side of the stress shaft 23 is fixedly provided with a stress plate 24, and one side of the top end of the stress plate 24 is fixedly provided with a pitching arc block 25;

as shown in fig. 1-2 and 7-9, one side of the top end of a bottom plate 1 is provided with an adjusting opening, two sides of the inner wall of the adjusting opening are rotatably connected with an adjusting screw rod through a bearing, one end of one side of the bottom plate 1 is provided with an adjusting motor 2, the output end of the adjusting motor 2 is fixedly connected with one end of the adjusting screw rod, two sides of the outer wall of the adjusting screw rod 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, the top of one side of each adjusting plate 34 is respectively provided with a first supporting plate and a second supporting plate, one side of the bottom end of the first supporting plate is provided with an accelerating motor 39, one side of the top end of the first supporting plate is rotatably connected with a first big gear 40 through a bearing, the bottom end of the first big gear 40 is fixedly connected with the output end of the accelerating motor 39, one side of the first big gear 40 is meshed 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 the transmission shaft, one side of the top end of the second support plate is rotatably connected with the middle part of the outer wall of the transmission shaft through a bearing, the top end of the transmission shaft is fixedly connected with the bottom end of the second large gear 42, one side of the second large gear 42 is meshed with one side of the second small gear 43, the second small gear 43 is rotatably connected with the middle part of the top end of the second support plate through a bearing, the top end of the second small gear 43 is fixedly connected with the bottom end of the service wheel 35, and the outer wall of each service wheel 35 is fixedly provided with a rubber sleeve 36;

as shown in fig. 1-4 and 7-9, a rotary motor 12 is installed in an installation groove formed at 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 bars 15, an installation block is fixedly arranged at the top of one end of one of the rotary shafts 6, a service motor 21 is installed at one side of the installation block, the other two ends of the two cross bars 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, moving long holes are formed at the two sides of the protective box 9, moving studs are respectively inserted into the two moving long holes, one ends of the two moving studs are respectively fixedly connected with the two sides of the connecting plate 13, one end of the connecting plate 13 is fixedly connected with one end of the guiding arc plate 14, one side of the outer wall of each moving stud is in threaded connection with a limit spiral ring, the two ends of the two sides of the inner wall of the adjusting opening are fixedly connected with the two ends of the two guide rods respectively, the guide hole formed in the two ends of one side of each adjusting plate 34 is connected with one side of the outer wall of the two guide rods in an inserting mode respectively, the middle of the top end of the bottom plate 1 is fixedly provided with an arc-shaped guide rod 37, one end of the arc-shaped guide rod 37 is fixedly connected with the middle of one end of the ball guide cover 38, the other side of the top end of the supporting box 4 is provided with a ball guide hole, 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 fig. 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 end 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 at 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 at one side of one end of the ball placing box 8, one end of the driving column 32 is hinged with one side of a circular inserting plate, 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, 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, rotate motor 12, service motor 21, driving motor 29 and two acceleration motor 39 are respectively through adjusting 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, and the driving column 32 moves in the limit sleeve 33, thereby driving the circular inserting plate to intermittently enter and exit in the open hole formed in the conveying pipe 7, thereby controlling the gap closing of the ball outlet hole of the ball placing box 8, after the balls are discharged, the balls enter the ball guide plate 17 through the conveying pipe 7 and the guide arc plate 14, turning on the ball serving motor 21, the ball serving motor 21 acts on the worm wheel 19 through the worm 20, the worm wheel 19 drives the acting shaft 26 between the rotating rods 6, the acting shaft 26 drives the acting plate 22 to grab, in the rotating process of the acting plate 22, the rotating sleeve 28 on the supporting column 27 is made to contact with the side of the stress plate 24, so that the stress plate 24 rotates along with the rotation, at the moment, the stress plate 24 drives the stress shaft 23 to rotate in the driving box 16, so that the clockwork spring stores 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 the clockwork spring releases the elastic potential energy at the moment when the rotating sleeve 28 rotates and is separated from the stress plate 24, the stress plate 24 acts on the stress shaft 23, so that the stress plate 24 is quickly reset, and balls on the service arc block 25 can be thrown away, and then the balls are thrown out.

When the balls need to be shot horizontally, as shown in fig. 1-2 and 5-9, a person 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 be separated from the movable opening formed in the conveying pipe 7, the balls can be ensured to fall on the ball guide cover 38 through the conveying pipe 7, the person opens the adjusting motor 2, the adjusting motor 2 drives the adjusting screw to rotate, the adjusting screw acts on 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, the distance between the two ball serving wheels 35 is changed, the size of the balls is adapted, the person opens the accelerating motor 39, the two accelerating motors 39 can drive the first gearwheel 40 to rotate, the first gearwheel 40 drives the first pinion 41 to rotate, the first-stage acceleration can be completed, the first pinion 41 is connected with the second gearwheel 42 through a transmission shaft, the second gearwheel 42 drives the second pinion 43 connected with the service wheel 35, so that the second-stage acceleration can be completed, the two service wheels 35 can rotate quickly, the driving motor 29 is opened by a person on the same side, balls can fall on the ball guide cover 38 through the conveying pipe 7, the balls pass through the arc-shaped guide rod 37, when the balls pass through the two service wheels 35, the service wheel 35 is connected with the rubber sleeve 36, and the service wheel 35 acts on the balls through the rubber sleeve 36, so that the balls can be horizontally ejected.

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 (9)

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 both sides of support box (4) outer wall all rotate with the pivot that the bottom of two dwang (6) one side was equipped with respectively through the bearing and are connected, two the top of dwang (6) one side all rotates with the both sides of action shaft (26) outer wall through the bearing and is connected, one side of action shaft (26) is fixed and is equipped with action board (22), the fluting internal fixation that one side of action board (22) was seted up is equipped with support column (27), the outer wall interlude of support column (27) is equipped with rotating sleeve (28), one of them the top of dwang (6) opposite side is fixed and is equipped with mounting box (18), the both sides of mounting box (18) inner wall all rotate through the bearing and the both sides of worm wheel (19) outer wall and are connected, the one end fixed connection of worm wheel (19) and the one end of action shaft (26), the top of worm wheel (19) meshes with the bottom of 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 springs are respectively and fixedly connected with the two sides of the outer wall of the stress shaft (23), one side of the stress shaft (23) is fixedly provided with a stress plate (24), and one side of the top end of the stress plate (24) is fixedly provided with a ball serving arc block (25);

an adjusting opening is formed in one side of the top end of the bottom plate (1), an adjusting lead screw is connected between two sides of the inner wall of the adjusting opening in a rotating mode through a bearing, an adjusting motor (2) is installed 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 lead screw, two sides of the outer wall of the adjusting lead 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 installed at one side of the bottom end of the first supporting plate, a first gear wheel (40) is connected to one side of the top end of the first supporting plate in a rotating mode through a bearing, and the bottom end of the first gear wheel (40) is fixedly connected with the output end of the 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, the middle part rotation that bearing and transmission shaft outer wall were passed through to one side on second backup pad top is connected, the top of transmission shaft and the bottom fixed connection of second gear wheel (42), one side of second gear wheel (42) and one side meshing of second pinion (43), second pinion (43) are connected through the middle part rotation on bearing and second backup pad top, the top of second pinion (43) and the bottom fixed connection of serving wheel (35), every the outer wall of serving wheel (35) all fixes and is equipped with rubber sleeve (36).

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: two the other both ends of horizontal pole (15) respectively with the both sides fixed connection of protection casing (10) one end, the both sides on ball guide plate (17) top respectively with the both sides fixed connection of protection box (9) bottom.

4. A variable multi-ball exercise apparatus for physical education as claimed in claim 3, wherein: the both sides of protection box (9) have all been seted up and have been removed the slot hole, two remove all to alternate in the slot hole and be equipped with and remove the double-screw bolt, two the one end of removing the double-screw bolt respectively with the both sides fixed connection of connecting plate (13), the one end of connecting plate (13) and the one end fixed connection of leading-in arc board (14), every the equal threaded connection in one side of removing the double-screw bolt outer wall has spacing spiro ring.

5. 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.

6. The variable multi-ball exercise apparatus for physical education as claimed in claim 1, wherein: 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.

7. 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.

8. The variable multi-ball exercise apparatus for physical education as claimed in claim 7, wherein: the output of driving motor (29) and the one end fixed connection of driving-disc (30), the one end rotation of one side through round pin axle and connecting rod (31) of driving-disc (30) other end 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 of drive post (32) outer wall and ball 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.

9. The variable multi-ball exercise apparatus for physical education as claimed in claim 7, 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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