CN202554874U

CN202554874U - Volleyball smash trainer

Info

Publication number: CN202554874U
Application number: CN2012202162204U
Authority: CN
Inventors: 刘志国; 王炎森; 吕晓强; 于洋; 甄子会; 郭宇; 周惠
Original assignee: 刘志国
Priority date: 2012-05-15
Filing date: 2012-05-15
Publication date: 2012-11-28
Anticipated expiration: 2022-05-15

Abstract

A volleyball spiking practice device. It relates to a kind of sports equipment. The volleyball spike trainer has the advantages of convenient height adjustment and can meet the needs of two practitioners practicing spikes at the same time. The middle part of the base is rotatably connected with the lower end of the threaded inner sleeve. The driven bevel gear has a central hole, and the threaded inner sleeve is fixed in the center hole of the driven bevel gear. The driving and driven bevel gears mesh, and the driving bevel gear is installed on the gear shaft. Above, the two ends of the gear shaft are connected to the bracket in rotation, the lower end of the bracket is fixedly connected to the base, the gear shaft is provided with a ring sleeve, the ring sleeve is set on the screw rod, and the lower end of the screw rod and the threaded inner sleeve pass through the matching thread One end of the gear shaft is fixed with a hand crank, the upper end of the side wall of the screw rod is fixedly connected with one end of the two crossbars, and the bottom of the other end of the two crossbars is fixedly connected with the volleyball through an elastic rubber band. The crossbars are set at a distance of 180°, and the two crossbars are set one high and one low. The utility model is used for basketball fans and physical education teaching.

Description

A kind of volleyball smash exercising machine

Technical field

The utility model relates to a kind of sports apparatus, particularly a kind of volleyball smash exercising machine.

Background technology

The volleyball smash exercise is an important content in the volleyball training, in order to let the practitioner carry out the volleyball smash exercise, in physical education, has occurred many volleyball smash exercising machines at present.But more existing volleyball smash exercising machines in use exist height adjustment inconvenient, can not satisfy two practitioners and practise slam-shot simultaneously, and can't adapt to the problem that different height practitioners require.

Summary of the invention

The purpose of the utility model provides a kind of volleyball smash exercising machine, and this volleyball smash exercising machine height adjustment is convenient, when satisfied two practitioners practise spiking simultaneously, also can satisfy different height practitioners' requirement.

For realizing above-mentioned purpose, the utility model is taked following technical scheme:

A kind of volleyball smash exercising machine, described exercising machine comprises base, the lower end of cover is rotationally connected in the middle part of base and the screw thread; Driven bevel gear is provided with centre bore, and cover is fixed in the centre bore of driven bevel gear in the screw thread, initiatively conical gear and driven bevel gear engagement; Initiatively conical gear is installed on the gear shaft, and the two ends and the support of gear shaft are rotationally connected, and the lower end and the base of support are connected; Gear shaft is provided with the annulus cover, and the annulus collar is enclosed within on the screw mandrel, and the lower end of screw mandrel is connected through matching thread with the interior cover of screw thread; One end of gear shaft is fixed with hand crank, and an end of the upper end of screw mandrel sidewall and two cross bars is connected, and the bottom of the other end of two cross bars respectively is connected through an elastic rubber band and vollyball; 180 ° of settings apart between two cross bars, two one high and one low settings of cross bar.

Cross bar has the pipe that externally threaded whippletree and an end have internal thread by an end and forms, and described whippletree and described pipe are through being threaded.

The adjustable height of the volleyball smash exercising machine of the utility model can be according to the height of practitioner's height adjustment cross bar; Two one high and one low settings of cross bar can be satisfied practitioner's individual demand.In addition,, make two people can carry out knock simultaneously, improved practitioner's training effectiveness owing to be provided with two cross bars.The volleyball smash exercising machine of the utility model not only is adapted at using in the physical education, also is fit to vast vollyball fan and uses.

When needs adjustment cross bar height, only with hand rotates hand crank, and conical gear rotates thereby drive initiatively; Because initiatively conical gear and driven bevel gear engagement is rotated thereby drive driven bevel gear, because cover is fixedly connected with driven bevel gear in the screw thread; Thereby cover cast in the drive screw thread; Because the interior cover of screw thread is connected through matching thread with screw mandrel, finally drives screw mandrel and move again, realized the adjustment of cross bar height thus along putting down in the screw thread.In addition, for improving the whole stability of volleyball smash exercising machine, preferably base and ground are fixed during use.

Description of drawings

Fig. 1 is the front view of a kind of volleyball smash exercising machine of the utility model.

Wherein, cover 2, driven bevel gear 3, centre bore 4, active conical gear 5, gear shaft 6, support 7, annulus cover 8, screw mandrel 9, cross bar 10, elastic rubber band 11, vollyball 12, whippletree 13, pipe 14, hand crank 15, reinforcement gusset 16 in base 1, the screw thread.

The specific embodiment

As shown in Figure 1, a kind of volleyball smash exercising machine, described exercising machine comprises base 1; The lower end of cover 2 is rotationally connected in the middle part of base 1 and the screw thread, and driven bevel gear 3 is provided with centre bore 4, and cover 2 is fixed in the centre bore 4 of driven bevel gear 3 in the screw thread; Initiatively conical gear 5 meshes with driven bevel gear 3, and initiatively conical gear 5 is installed on the gear shaft 6, and the two ends of gear shaft 6 and support 7 are rotationally connected; The lower end of support 7 and base 1 are connected, and gear shaft 6 is provided with annulus cover 8, and annulus overlaps 8 ring sets on screw mandrel 9; Cover 2 is connected through matching thread in the lower end of screw mandrel 9 and the screw thread; One end of gear shaft 6 is fixed with hand crank 15, and the upper end of screw mandrel 9 sidewalls and an end of two cross bars 10 are connected, and the bottom of the other end of two cross bars 10 respectively is connected through an elastic rubber band 11 and vollyball 12; 180 ° of settings apart between two cross bars 10, two cross bar 10 one high and one low settings; Cross bar 10 has the pipe 14 that externally threaded whippletree 13 and an end have internal thread by an end and forms, and described whippletree 13 and described pipe 14 be through being threaded, and makes the adjustable length of cross bar 10, thereby satisfies practitioner's individual demand.

Firm in order to guarantee lever 10, between lever 10 and screw mandrel 9, increased reinforcement gusset 16.

Claims

1. A volleyball spiking practice device, which includes a base (1), characterized in that: the middle part of the base (1) is rotatably connected to the lower end of the threaded inner sleeve (2), and the driven conical gear (3) There is a center hole (4), the threaded inner sleeve (2) is fixed in the center hole (4) of the driven bevel gear (3), the driving bevel gear (5) meshes with the driven bevel gear (3), and the driving bevel gear (5) Installed on the gear shaft (6), the two ends of the gear shaft (6) are rotationally connected with the bracket (7), the lower end of the bracket (7) is fixedly connected with the base (1), and the gear shaft (6) is provided with The ring sleeve (8), the ring sleeve (8) is ring-sleeved on the screw rod (9), the lower end of the screw rod (9) is connected with the threaded inner sleeve (2) through matching threads, and one end of the gear shaft (6) is fixed There is a hand crank (15), the upper end of the side wall of the screw mandrel (9) is fixedly connected with one end of the two cross bars (10), and the bottoms of the other ends of the two cross bars (10) respectively pass through an elastic rubber band (11 ) is fixedly connected with the volleyball (12), and the distance between the two cross bars (10) is set at 180°, and the two cross bars (10) are set one high and one low.

2. A volleyball spiking training device according to claim 1, characterized in that: the crossbar (10) is composed of a horizontal bar (13) with an external thread at one end and a round pipe (14) with an internal thread at one end The horizontal bar (13) is connected with the round pipe (14) by threads.