CN2045314U

CN2045314U - Automatic ball tossing apparatus for volleyball training

Info

Publication number: CN2045314U
Application number: CN 89203155
Authority: CN
Inventors: 梁文喜; 肖翠珍; 刘俊杰; 李志刚
Original assignee: HEBEI POLYTECHNICAL COLLEGE
Current assignee: HEBEI POLYTECHNICAL COLLEGE
Priority date: 1989-03-20
Filing date: 1989-03-20
Publication date: 1989-10-04

Abstract

The utility model belongs to an automatic ball tossing apparatus for volleyball training. A dolly is provided with a corner elevating mechanism in which a bracket is positioned on the top of the screw mandrel. An elevation shifting mechanism is positioned on the top of the bracket and is connected with the tossing apparatus with its centre pin. The utility model can serve various balls and adjust the serving height, angle, velocity and distance according to requirement. The utility model has the advantages of simple structure, good performance, and flexible operation, low cost. The apparatus is suitable for volleyball training teams and sport teaching.

Description

Automatic ball tossing apparatus for volleyball training

The utility model belongs to sports apparatus, especially for the automatic ball tossing apparatus of volleyball training.

In volleyball training, also do not have a kind of comparatively ideal service apparatus at present, during training athlete, mainly by coach's service, the sportsman touches ball, and therefore, coach's labour intensity is big, and it is few that the sportsman touches the ball number of times, and training quality and effect are not really desirable.

Present situation when the purpose of this utility model is to overcome current volleyball training, the automatic ball tossing apparatus that provides a kind of volleyball training to use.

The purpose of this utility model can reach by following measure:

Be fixed with a lifting, rotation angle mechanism on dolly, an elevating screw with handwheel control is equipped with in its inside, and the leading screw upper end is fixed with carriage, and the top of carriage is fixed with elevation angle mapping device, and is connected with toss mechanism with the bearing pin on it.

To be motor reel be connected with pinion in the reduction box structure of toss mechanism, and the nut in gear wheel axle center is connected with leading screw; Clamping plate are equipped with in the upper end of leading screw, and the feather key with upper and lower contact is housed on the clamping plate, and what two symmetries were housed is the control hook of center of rotation with the bearing pin, connect with little spring between its upper end two hooks, and a rotating roller respectively is equipped with in the lower end; Upper stroke switch and guide pin bushing also are housed on the reduction box, the guide pin bushing interior lower end is equipped with the block of two symmetries, a lower stroke switch is equipped with in the upper end in the guide pin bushing outside, and the guide openings that feather key passes on the guide pin bushing is stretched to the outside, and can make upper and lower contact contact upper and lower stroke switch; A sleeve is equipped with at the top of guide pin bushing; A ball basket is housed on the sleeve; The bar that hits that hits the bar tail is housed passes the guide pin bushing top and stretch into the ball basket, hit the masthead end and be fixed with hammer, hit bar and on the external diameter at sleeve position, be set with spring and installing spring bearer plate through sleeve.

The structure of elevation angle mapping device is to install elevation angle plate on carriage, it is provided with several locating holes and a centre bore, bearing pin is housed in the centre bore, the one end is installing toss mechanism, the other end is installing the bearing pin frame that connects elevation angle handle by bearing pin, one end of elevation angle handle is equipped with the push rod of band spring, and the other end is equipped with the alignment pin that can insert locating hole on the plate of the elevation angle.

The structure of lifting, rotation angle mechanism is to install a shell on dolly, be equipped with in the shell upper and lower end outside respectively with bearing do bearing support, the threaded screw set of internal diameter, a handwheel is equipped with in the upper end of screw set, and the leading screw that the top is connected with carriage is housed in the cover.

Description of drawings is as follows:

The automatic ball tossing apparatus schematic diagram that Fig. 1 uses for volleyball training.

1 is dolly among the figure, and 2 are lifting, rotation angle mechanism, and 3 is leading screw, and 4 is carriage, and 5 is bearing pin, and 6 is elevation angle mapping device, and 7 are toss mechanism.

Fig. 2 is the toss structural scheme of mechanism.

8 is motor among the figure, and 9 is pinion, and 10 is upper stroke switch, and 11 is link stopper, 12 is guide pin bushing, and 13 is feather key, and 14 is clamping plate, and 15 is lower stroke switch, 16 is spring, and 17 is pressing plate, and 18 for hitting bar, and 19 is hammer, 20 is the ball basket, and 21 is bolt, and 22 is sleeve, and 23 is little spring, 24 for hitting the bar tail, and 25 are the control hook, and 26 is bearing pin, and 27 is roller, 28 is leading screw, and 29 is gear wheel, and 30 is reduction box, and 31 is nut.

Fig. 3 is an elevation angle mapping device schematic diagram.

32 is elevation angle plate among the figure, and 33 is locating hole, and 34 is alignment pin, and 35 is elevation angle handle, and 36 is the bearing pin frame, and 37 is bearing pin, and 38 is push rod.

Fig. 4 is lifting, the rotation angle mechanism schematic diagram.

39 is bearing among the figure, and 40 is shell, and 41 is screw set, and 42 is bearing, and 43 is handwheel.

Below in conjunction with accompanying drawing embodiment is described in further detail:

By vehicle frame, handrail and 3---installing a lifting, rotation angle mechanism 2 with screw on the dolly 1 of 4 wheel formations, the upper end of the leading screw 3 in it is installing carriage 4 with screw, the carriage top is fixed with elevation angle mapping device 6, and the bearing pin 5 on it is connected with toss mechanism 7.

On the vehicle frame of dolly, tightening up the shell 40 of lifting, rotation angle mechanism with screw, the upper and lower end outside is equipped with a

bearing

42 and 39 respectively in the shell, bearing is put on the shelf and is being adorned a threaded screw set 41 of upper-end inner diameter, and screw set stretches out on shell one end and is fixed with handwheel 43, and leading screw 3 is housed in the cover.The top of leading screw is installing the carriage 4 that is made of two carrier bar with screw.A carrier bar top of carriage is being welded with the elevation angle plate 32 of locating hole 33 and centre bore, bearing pin 5 is housed in the centre bore, the one end is installing a side of toss mechanism 7 with nut and pin, the other end is welding bearing pin frame 36, the elevation angle handle 35 that connects with bearing pin 37 is installed thereon, one end of elevation angle handle is equipped with the push rod 38 of an adjustable springs pressure, and the other end is equipped with an alignment pin 34.Turning handle, alignment pin inserts different locating holes, makes toss mechanism can be different angles, thereby changes the angle of departure.The top of another root carrier bar is connected with the opposite side of bearing pin with toss mechanism 7; On the reduction box 30 of toss mechanism motor 8 is housed, the pinion 9 usefulness keys in upper stroke switch 10 and the guide pin bushing 12, motor shaft and reduction box are connected, with pinion be a gear wheel 29 that nut 31 is housed in the axle center, leading screw 28 is housed on the nut; The leading screw upper end is fixed with clamping plate 14, be equipped with screw on the clamping plate and be with, following contact, and stretch out the feather key 13 of the guide openings outside of the rectangle on the guide pin bushing, on clamping plate, also be equipped with symmetrical, with bearing pin 26 is two control hooks 25 of center of rotation, between two hooks in upper end, connect with two little springs 23, a rotating roller 27 respectively is equipped with in the lower end, the block 11 of two symmetries is equipped with in the lower end of guide pin bushing inside, a lower stroke switch 15 is equipped with in the upper end in the guide pin bushing outside, on in the guide openings of feather key on guide pin bushing, when mobile down, on it, following contact can touch, lower stroke switch; The welded top of guide pin bushing a sleeve 22, is installing a ball basket 20 with bolt 21 on the sleeve; The guide pin bushing centre have one be equipped with hit bar tail 24 hit bar 18, hitting bar passes guide pin bushing top center aperture sleeve and extend in the ball basket, hit on the upper end of bar and welding a hammer 19, hit on one section external diameter of bar in sleeve and be welded with spring bearer plate 17, a compression spring 16 at its underpart suit.

Method of work of the present utility model is: actuating motor, by the gear reduction transmission, the drive nut rotates, and this moment, leading screw was done the straight line ascending motion, when the control hook on the clamping plate is run into when hitting the bar afterbody, overcome the pulling force of little spring, open two hooks upper end, hooks and hit the bar tail, at this moment, last contact on the feather key is pushed down lower stroke switch, makes the motor counter-rotating.Leading screw by the control hook strip on the clamping plate that to hit bar descending, simultaneously, and compression spring and storage power, when the roller on the control hook was run into block, toward moving down, control hook lower end was drawn close again, the other end opens, and hits the bar tail and breaks off relations, and spring releases energy suddenly, hitting bar rises, hammer hits the ball in the ball basket, and at this moment, the following contact of feather key is pushed down upper stroke switch, motor just changes, work beginning for the second time.

In order to adapt to the requirement of different angles service, be provided with elevation angle mapping device, rotate elevation angle handle, make the alignment pin on the handle insert different locating hole on the plate of the elevation angle, can reach the purpose of sending out the different angles ball.Rotate the handwheel in lifting, the rotation angle mechanism, drive the upper and lower moving linearly of leading screw, thereby also can reach the requirement of sending out differing heights, different angles ball by screw set.Moving whenever and wherever possible of dolly also can change serving position.Unclamp bolt 21 and can regulate the upper and lower position of ball basket 20, change the static distance of hammer and ball, can send out the ball of different performance height.The technical parameter of this ball tossing apparatus is: power supply V=220V; Power of motor N=180W; Rotation speed n=1500 rev/min; Service frequency: launched continuously 1 time/3 seconds; Single transmit: can control voluntarily as required; Angle of departure α=0 °---90 °.

The utility model compared with prior art has the following advantages:

Can alleviate coach's labour intensity, increase athletic tactile ball number of times, improve the level of training; It is fast, short flat to send nearly body according to training or teaching needs Hurry up, horizontal drawing is opened, general high ball, the back of the body is high, the back of the body is fast, before the net and online ball etc.; The height of various balls, speed, length all can be regulated. Therefore cultivate setter, attack man, blocking, receiving to reach the fast purpose of producing effects.

Claims

1, the automatic ball tossing apparatus used of a kind of volleyball training, it is characterized in that on dolly, being fixed with a lifting, rotation angle mechanism, an elevating screw with handwheel control is equipped with in its inside, the leading screw upper end is fixed with carriage, the top of carriage is fixed with elevation angle mapping device, and is connected with toss mechanism with the bearing pin on it.

2, according to the said ball tossing apparatus of claim 1, it is characterized in that toss mechanism is motor reel and is connected with pinion in the reduction box, the nut in gear wheel axle center is connected with leading screw, clamping plate are equipped with in the upper end of leading screw, be equipped with on the clamping plate and be with, the feather key of following contact, and what two symmetries were housed is the control hook of center of rotation with the bearing pin, connect with little spring between its upper end two hooks, a rotating roller respectively is equipped with in the lower end, upper stroke switch and guide pin bushing also are housed on the reduction box, the guide pin bushing interior lower end is equipped with the block of two symmetries, a lower stroke switch is equipped with in the upper end in the guide pin bushing outside, the guide openings that feather key passes on the guide pin bushing is stretched to the outside, and can make, following contact contacts, lower stroke switch, the top of guide pin bushing are equipped with a sleeve, a ball basket is housed on the sleeve, the bar that hits that hits the bar tail is housed passes the guide pin bushing top and stretch into the ball basket, hit the masthead end and be fixed with hammer, hit bar and on the external diameter at sleeve position, be set with spring and installing spring bearer plate through sleeve.

3, according to the said ball tossing apparatus of claim 1, it is characterized in that the elevation angle, mapping device is the elevation angle plate that is packed on the carriage, it is provided with several locating holes and a centre bore, bearing pin is housed in the centre bore, and the one end is installing toss mechanism, and the other end is installing the bearing pin frame that connects elevation angle handle by bearing pin, one end of an elevation angle handle is equipped with the push rod of band spring, and the other end is equipped with the alignment pin that can insert locating hole on the plate of the elevation angle.

4, according to the said ball tossing apparatus of claim 1, it is characterized in that lifting, rotation angle mechanism are to install a shell on dolly, a upper and lower end is done to support with bearing respectively, the threaded screw set of internal diameter is housed in the shell, a handwheel is equipped with in the upper end of screw set, and the leading screw that the top is connected with carriage is housed in the cover.