CN109771924B

CN109771924B - Volleyball trainer

Info

Publication number: CN109771924B
Application number: CN201910215347.0A
Authority: CN
Inventors: 庞凯戈
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-20
Filing date: 2019-03-20
Publication date: 2023-08-25
Anticipated expiration: 2039-03-20
Also published as: CN109771924A

Abstract

The application discloses a volleyball training device, and mainly relates to the field of volleyball training auxiliary tools. Including fan and support, the fan is fixed on the support, the fan is used for blowing out the air curtain, the fan upwards forms the plane air curtain, a plurality of fans are arranged in succession and are formed the ring, the air curtain that the fan air outlet formed is to annular inside oblique top, the fan top is provided with the air outlet, the fan side is close to the bottom position and is equipped with the air intake, the length direction both ends of fan are provided with the adapter sleeve respectively along fan length direction is outwards, the support top is provided with the connecting pin, the fan passes through the adapter sleeve and realizes with leg joint with the connecting pin cooperation, fan air outlet department is provided with the deflector group, the deflector group is used for changing the air supply direction of fan, the deflector group realizes changing the angle between air-out direction and the ground through changing the angle. The application has the beneficial effects that: the volleyball is in a certain range by limiting the movement direction of the volleyball in the air through the air curtain.

Description

Volleyball trainer

Technical Field

The application relates to the field of volleyball training auxiliary tools, in particular to a volleyball training device.

Background

In the prior art, volleyball exercises are arranged in the class of junior middle school, the volleyball exercises and teaching are generally carried out on the volleyball, particularly, most courses in junior middle school are volleyball exercises, in the practical training of the volleyball, because the space of the prior campus is limited, a playground is commonly used in many classes in most cases, the activity position of each class is relatively fixed, the space of each person is relatively narrow, students in one class are likely to exercise in one volleyball space, the ball path is often deviated due to incorrect posture at the beginning of volleyball and the volleyball is picked up at most times instead of exercising the volleyball, and in the practical teaching, the flying of the volleyball is generally limited by arranging a wire mesh at the periphery of the volleyball, but in the training of the volleyball, the iron wire mesh effect is smaller and the ball cannot be kept in a smaller range.

Disclosure of Invention

The application aims to provide a volleyball training device which can limit the movement direction of volleyball in the air through an air curtain to enable the volleyball to be in a certain range.

The application aims to achieve the aim, and the aim is achieved by the following technical scheme:

the volleyball training device comprises a fan and a bracket, wherein the fan is fixed on the bracket, the fan is used for blowing out an air curtain, the fan upwards forms a plane air curtain, a plurality of fans are continuously arranged into a ring, the air curtain formed by an air outlet of the fan is obliquely upwards arranged in the ring,

the top of the fan is provided with an air outlet, the side surface of the fan is provided with an air inlet near the bottom, the two ends of the fan in the length direction are respectively provided with a connecting sleeve outwards along the length direction of the fan, the top of the bracket is provided with a connecting pin, the fan is connected with the bracket through the cooperation of the connecting sleeve and the connecting pin,

the air outlet of the fan is provided with a guide plate set, the guide plate set is used for changing the air supply direction of the fan, and the guide plate set changes the angle between the air outlet direction and the ground by changing the angle.

The support includes link, lifter and base, be provided with four fixed pins on the link, four the fixed pin points to different directions, the link overlook the state and be cross structure, link central authorities bottom and lifter fixed connection, the fixed pin cooperatees with the adapter sleeve, the base overlook the state and be integrated into one piece's cross structure, base and lifter bottom fixed connection.

The connecting sleeve is of a circular tube structure, and the outer diameter of the fixing pin is in interference fit with the inner diameter of the connecting sleeve.

The outer side of the connecting sleeve is provided with threads, and the outer side of the connecting sleeve is provided with a locking nut connected through threads.

The outside of the fixed pin is provided with a locking groove, and the locking groove is arranged along the circumferential direction of the fixed pin to form a ring-shaped groove.

The lifting rod comprises an inner pipe and an outer pipe, the inner pipe and the outer pipe are nested in the outer pipe, twenty through holes are uniformly formed in the inner pipe and the outer pipe along the length direction, safety pins matched with the through holes are arranged in the through holes, and the length of the safety pins is larger than the diameter of the outer pipe.

The guide plate group comprises a first guide plate and a second guide plate, the structures of the first guide plate and the second guide plate are identical, the first guide plate and the second guide plate are parallel to the length direction of the fan, the first guide plate and the second guide plate are respectively arranged on two sides of the center line of the width direction of the air outlet, the first guide plate and the second guide plate are respectively provided with a plurality of guide plates and the same in quantity, two ends of the first guide plate are provided with rotating shafts parallel to the length direction of the first guide plate, and the rotating shafts are connected with the side walls of two ends of the length direction of the fan in a rotating mode.

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

the utility model discloses a volleyball is equipped with the fan, the fan is installed on the support, the fan upwards forms the plane air curtain, a plurality of fans are arranged into the annular in succession and form continuous air curtain, change fan air-out direction through the deflector of adjustment fan air outlet, the air curtain that the fan air outlet formed is to annular inside oblique top, volleyball is comparatively stable only receives gravity and air resistance in aerial atress in the volleyball exercise, the power of volleyball can not too big, can effectively change the flight orbit of volleyball through the air current, can blow the volleyball that flies outward to annular central authorities through the air curtain in the volleyball exercise volleyball process, make the volleyball be in annular region all the time, can effectually improve students' exercise time reduction because of picking up the extravagant time.

Drawings

Fig. 1 is a schematic perspective view of the structure of the present application.

Fig. 2 is a front view of the structure of the present application.

Fig. 3 is a schematic perspective view of the bracket structure of the present application.

Fig. 4 is a schematic perspective view of a fan structure according to the present application.

Fig. 5 is a schematic perspective view of a first guide plate structure according to the present application.

Fig. 6 is an enlarged view of the portion a of the present application.

Fig. 7 is an enlarged view of the portion B of the present application.

Fig. 8 is an enlarged view of the C section of the present application.

Fig. 9 is an enlarged view of the portion D of the present application.

Fig. 10 is an enlarged view of the portion E of the present application.

Fig. 11 is an enlarged view of the F portion of the present application.

The reference numbers shown in the drawings:

1. a blower; 2. a bracket; 3. an air outlet; 4. an air inlet; 5. connecting sleeves; 6. a first guide plate; 7. a second guide plate; 8. a first linkage rod; 9. a second linkage rod; 10. a rotating shaft; 11. a driving shaft; 12. a first servo motor; 13. a second private clothes motor; 14. a swing arm lever; 15. a connecting plate; 16. a wind deflector; 17. a pull rod; 18. a sliding hole; 19. a butterfly nut; 20. a lock nut; 21. a stop bar; 22. a connecting frame; 23. a lifting rod; 24. a base; 25. a fixing pin; 26. a locking groove; 27. a safety pin; 28. and a through hole.

Detailed Description

The application will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Further, it will be understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the application, and equivalents thereof fall within the scope of the application as defined by the claims.

Examples: the volleyball training device comprises a fan 1 and a bracket 2, wherein the fan 1 is arranged on the bracket 2, the fan 1 upwards forms a plane air curtain, a plurality of fans 1 are continuously arranged into a ring shape to form a continuous air curtain, the air curtain formed by an air outlet 3 of the fan 1 is obliquely upwards arranged in the ring shape, the volleyball is more stable in air stress and only receives gravity and air resistance in the ball tilting exercise, the flying track of the volleyball can be effectively changed through air flow, the volleyball flying outside can be blown to the center of the ring shape through the air curtain in the ball tilting exercise process,

the fan 1 is used for blowing out an air curtain, the fan 1 is a through-flow fan 1, the rotation shaft of the through-flow fan 1 is horizontally arranged, the top of the fan 1 is provided with an air outlet 3, the side surface of the fan 1 is provided with an air inlet 4 near the bottom, the two ends of the fan 1 in the length direction are respectively provided with a connecting sleeve 5 outwards along the length direction of the fan 1,

the air outlet 3 of the fan 1 is provided with a guide plate group, the guide plate group is used for changing the air supply direction of the fan 1 and changing the angle between the air direction and the ground, the guide plate group comprises a first guide plate 6 and a second guide plate 7, a first linkage rod 8 and a second linkage rod 9, the structures of the first guide plate 6 and the second guide plate 7 are identical, the structures of the first linkage rod 8 and the second linkage rod 9 are identical, the first guide plate 6 and the second guide plate 7 are parallel to the length direction of the fan 1, the first guide plate 6 and the second guide plate 7 are respectively arranged at two sides of the center line of the width direction of the air outlet 3,

the two ends of the first guide plate 6 are provided with rotating shafts 10 parallel to the length direction of the first guide plate 6, the rotating shafts 10 are rotationally connected with the side walls of the two ends of the fan 1 in the length direction, the two ends of the first guide plate 6 are provided with driving shafts 11 at the two ends, the driving shafts 11 are not overlapped with the axis of the rotating shafts 10, seven first guide plates 6 are equidistantly arranged at one side of the width direction of the air outlet 3 along the width direction of the air outlet 3,

seven linkage holes are equidistantly arranged on the first linkage rod 8, the number of the linkage holes is the same as that of the first guide plates 6, the distance between the linkage holes is the same as that of the rotating shafts 10 of the first guide plates 6, the driving shafts 11 on the first guide plates 6 are sequentially and rotatably connected with the linkage holes on the first linkage rod 8, the linkage rod is parallel to the width direction of the air outlet 3,

the side walls at the two ends of the fan 1 in the length direction are fixedly provided with first servo motors 12, the output shafts of the first servo motors 12 are in the same plane with the rotating shafts 10 on the seven first guide plates 6, one end of each first linkage rod 8, which is close to the side wall of the air outlet 3 in the width direction, is hinged with a swinging arm rod 14, the distance from one end of each linkage rod hinged with the swinging arm rod 14 to the nearest linkage hole is equal to the distance from the output shaft of each first servo motor 12 to the rotating shaft 10 on the nearest first guide plate 6, the swinging arm rod 14 is far away from the linkage rod and is fixedly connected with the output shaft of the first servo motor 12, one side of each second guide plate 7 in the width direction of the air outlet 3 is symmetrically provided with a second linkage rod and a second private clothing motor 13 in the width direction of the air outlet 3, the second private clothing motor 13 can respectively blow air obliquely upwards at two sides when two sides are used at the same time, and can swing in the same direction when only one side needs to use, so that the whole air outlet 3 can blow in one direction,

the top of the fan 1 is provided with a wind shielding component, the wind shielding component comprises a connecting plate 15, a wind shielding plate 16 and a pull rod 17, the connecting plate 15 is symmetrically fixed above air outlets 3 at two ends of the fan 1 in the length direction, the connecting plate 15 is provided with a sliding hole 18, the length direction of the sliding hole 18 is consistent with the width direction of the air outlets 3, the sliding hole 18 is a through hole along the length direction of the fan 1, the length of the wind shielding plate 16 is the same as the distance between the opposite surfaces of the two connecting plates 15, one side of the wind shielding plate 16 in the width direction is provided with a tensioning hole, the tensioning hole penetrates through the length direction of the wind shielding plate 16, the length of the pull rod 17 is longer than the distance between the outer surfaces of the two connecting plates 15, the pull rod 17 penetrates through the sliding hole 18 and the tensioning hole, two ends of the pull rod 17 are respectively screwed and pressed against the connecting plate 15 through butterfly nuts 19, the connecting plate 15 can clamp the wind shielding plate 16, and the wind shielding plate 16 is fixed,

when the first guide plate 6 and the second guide plate 7 of the guide plate group are inclined to one side, the butterfly nut 19 on the pull rod 17 is loosened to set the wind shield 16 to one side far away from the wind outlet direction, and the wind shield 16 is parallel to the first guide plate 6 or the second guide plate 7, because the wind shield 6 and the second guide plate 7 have poor guiding effect on wind at the side wall position of the wind outlet 3 near the width direction and have partial flow loss, the wind shield 16 is used for guiding partial air flow, when the first guide plate 6 and the second guide plate 7 are inclined to two sides respectively, the wind shield 16 is adjusted to be in the vertical direction and is arranged at the center position of the wind outlet 3, the relative influence of wind at two sides can be reduced,

the connecting sleeve 5 is of a circular tube structure, threads are arranged on the outer side of the connecting sleeve 5, a locking nut 20 connected through the threads is arranged on the outer side of the connecting sleeve 5, an inward protruding baffle strip 21 is arranged on the inner side of the connecting sleeve 5, the baffle strip 21 is arranged along the circumferential direction of the connecting sleeve 5,

the bracket 2 comprises a connecting frame 22, a lifting rod 23 and a base 24, the bracket 2 is processed by adopting aluminum alloy, four fixing pins 25 are arranged on the connecting frame 22, the four fixing pins 25 point to different directions, the connecting frame 22 is in a cross-shaped structure in overlook state, the bottom of the center of the connecting frame 22 is fixedly connected with the lifting rod 23, the fixing pins 25 are matched with the connecting sleeve 5, the outer diameter of the fixing pins 25 is in interference fit with the inner diameter of the connecting sleeve 5, locking grooves 26 are arranged on the outer side of the fixing pins 25, the locking grooves 26 are arranged along the circumferential direction of the fixing pins 25 to form ring-shaped grooves,

the lifting rod 23 comprises an inner pipe and an outer pipe, which are nested in the outer pipe, twenty through holes 28 are uniformly formed in the inner pipe and the outer pipe along the length direction, safety pins 27 matched with the through holes 28 are arranged in the through holes 28, the length of each safety pin 27 is larger than the diameter of the outer pipe, one end of each safety pin 27 is provided with a ring-shaped pull ring, the top end of the inner pipe is fixedly connected with the bottom of the connecting frame 22 through welding, the bottom of the outer pipe is fixedly connected with the base 24, the base 24 is of an integrally formed cross-shaped structure, a vertical connecting hole with an upward opening is formed in the middle of the base 24, the connecting hole is a threaded hole, the bottom end of the outer pipe is provided with external threads connected with the connecting hole,

according to the height of the support 2 adjusted by the height of a user, the safety pin 27 is pulled out, the support 2 is adjusted to a proper height position, the safety pin 27 is inserted into the through hole 28, the lock nuts 20 on the connecting sleeves 5 at the two ends of the fan 1 are rotated to the fan 1, the connecting sleeves 5 are in a state of being spread out, the connecting sleeves 5 are sleeved on the fixed pins 25, the stop bars 21 can be embedded into the lock grooves 26, the connecting sleeves 5 at the two ends of the fan 1 are respectively matched with the fixed pins 25 of the two supports 2, then the lock nuts 20 at the connecting sleeves 5 are rotated to the position far from the stop bars 21, the connecting sleeves 5 cannot be spread out and are in an effective connection state, the fan 1 is installed on the adjacent fixed pins 25 on the support 2 connected with the fan 1, finally, a structure of a Chinese character 'kou' is formed, one fan 1 which is common to the two Chinese character 'kou' shapes 'can be continuously spliced to form a Chinese character' i 'shaped' structure beside the Chinese character 'in the Chinese character' structure, the two common fans 1 are blown to the two sides, and the rest fans 1 are blown to the middle.

Claims

1. A volleyball trainer, characterized in that: the air curtain type air conditioner comprises a fan (1) and a support (2), wherein the fan (1) is fixed on the support (2), the fan (1) is used for blowing out an air curtain, the fan (1) upwards forms a plane air curtain, a plurality of fans (1) are continuously arranged into a ring, the air curtain formed by an air outlet (3) of the fan (1) is obliquely arranged inside the ring, an air outlet (3) is formed at the top of the fan (1), an air inlet (4) is formed at the side surface of the fan (1) close to the bottom, connecting sleeves (5) are outwards arranged at two ends of the fan (1) in the length direction of the fan (1) respectively, connecting pins are arranged at the top of the support (2), the fan (1) is matched with the connecting pins through the connecting sleeves (5), a guide plate set is arranged at the air outlet (3) of the fan (1) and is used for changing the air supply direction of the fan (1), and the guide plate set is used for changing the angle between the air outlet direction and the ground through changing the angle;

the bracket (2) comprises a connecting frame (22), lifting rods (23) and a base (24), four fixing pins (25) are arranged on the connecting frame (22), the four fixing pins (25) point to different directions, the connecting frame (22) is in a cross-shaped structure in overlooking state, the central bottom of the connecting frame (22) is fixedly connected with the lifting rods (23), the fixing pins (25) are matched with connecting sleeves (5), the base (24) is in an integrally formed cross-shaped structure in overlooking state, and the base (24) is fixedly connected with the bottom of the lifting rods (23);

the guide plate group comprises a first guide plate (6) and a second guide plate (7), the structures of the first guide plate (6) and the second guide plate (7) are identical, the first guide plate (6) and the second guide plate (7) are parallel to the length direction of the fan (1), the first guide plate (6) and the second guide plate (7) are respectively arranged on two sides of the central line of the width direction of the air outlet (3), the first guide plate (6) and the second guide plate (7) are respectively provided with a plurality of rotary shafts (10) parallel to the length direction of the first guide plate (6), and the rotary shafts (10) are rotationally connected with the side walls of two ends of the length direction of the fan (1).

2. A volleyball training device as claimed in claim 1 wherein: the connecting sleeve (5) is of a circular tube structure, and the outer diameter of the fixing pin (25) is in interference fit with the inner diameter of the connecting sleeve (5).

3. A volleyball training device as claimed in claim 2 wherein: the outer side of the connecting sleeve (5) is provided with threads, and the outer side of the connecting sleeve (5) is provided with a locking nut (20) connected through threads.

4. A volleyball training device as claimed in claim 2 wherein: the inner side of the connecting sleeve (5) is provided with an inward protruding baffle strip (21), the baffle strip (21) is arranged along the circumference of the connecting sleeve (5), the outer side of the fixing pin (25) is provided with a locking groove (26), and the locking groove (26) is arranged along the circumference of the fixing pin (25) to form a ring-mounted groove.

5. A volleyball training device as claimed in claim 1 wherein: the lifting rod (23) comprises an inner pipe and an outer pipe, the inner pipe is nested in the outer pipe, twenty through holes (28) are uniformly formed in the inner pipe and the outer pipe along the length direction, safety pins (27) matched with the through holes (28) are arranged in the through holes (28), and the length of the safety pins (27) is larger than the diameter of the outer pipe.