CN203342314U

CN203342314U - Safe javelin for teaching training

Info

Publication number: CN203342314U
Application number: CN 201320410129
Authority: CN
Inventors: 石磊; 许晓辉; 王东生; 廖本露; 郭忠云; 王盼盼
Original assignee: Shijiazhuang University of Economics
Current assignee: Shijiazhuang University of Economics
Priority date: 2013-07-11
Filing date: 2013-07-11
Publication date: 2013-12-18
Anticipated expiration: 2023-07-11

Abstract

The utility model discloses a safe javelin for teaching training. The safe javelin comprises a javelin head and a javelin rod which are connected detachably, wherein a fixing column is arranged at the tail end of the javelin head and inserted into an inner hole of the javelin rod to be fixed through a locking ring. A slide rod is arranged at the front end of the javelin head, a spherical rubber head is arranged at the front end of the slide rod, a spring is arranged at the tail end of the slide rod, a clamping groove is arranged on the slide rod, a clamping pin corresponding to the clamping groove is arranged on the javelin head, and a whistle hole is arranged on the javelin head. By utilizing the elastic spherical rubber head, killability of the javelin is reduced, and the safety factor of the javelin during training is increased. Users can judge whether the throwing action is right by checking whether the slide rod is locked by the clamping pin after throwing, the safe javelin can give whistling when flying to warn people, and then the safety factor is further increased.

Description

A kind of teaching and training safety dart

Technical field

The utility model relates to a kind of sports apparatus of throwing use, specifically a kind of teaching and training safety dart.

Background technology

Javelin throw is one of track and field sports project, and the sportsman goes out javelin throwing after run-up.The barral of a gun of javelin is wooden or metal, and middle thick, two is thin, and front end is installed the metal gun head of taper.The javelin motion is with certain danger, and in the training or match of javelin throw, on athletic ground, needing has security official's maintenance safe, in order to avoid javelin is accidentally injured other people.

The utility model content

The purpose of this utility model is to provide a kind of teaching and training safety dart, can effectively improve the safety coefficient of javelin throw motion.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is:

A kind of teaching and training safety dart, comprise rifle head and barral of a gun, rifle head and barral of a gun removably connect, and rifle head end is provided with fixed leg, and fixed leg is inserted into the endoporus of barral of a gun, and fix by clamp ring, described rifle head front end is provided with sliding bar, and the sliding bar front end is spherical Rubber end, at the sliding bar end, is provided with spring, be provided with draw-in groove on sliding bar, be provided with the bayonet lock corresponding with draw-in groove on the rifle head.

As preferably, on described rifle head, be provided with hole, the whistle.

The beneficial effects of the utility model are:

In the utility model, the rifle head adopts elastic spherical rubber head, reduced the lethality of javelin, thereby improve its safety coefficient when training, after throwing by inspection, whether sliding bar is locked by bayonet lock, judge that whether throwing action is correct, javelin, under state of flight, can send whistle to play the effect of warning, and safety coefficient further improves.

The accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

Fig. 1 is structural representation of the present utility model.

Fig. 2 is cross-sectional view of the present utility model.

In figure: 1, rifle head; 2, barral of a gun; 3, clamp ring; 11, Rubber end; 12, sliding bar; 13, hole, the whistle; 14, draw-in groove; 15, bayonet lock; 16, spring; 17, fixed leg.

The specific embodiment

As illustrated in fig. 1 and 2, a kind of teaching and training safety dart, comprise rifle head 1 and barral of a gun 2, and rifle head 1 and barral of a gun 2 removably connect, rifle head 1 end is provided with fixed leg 17, fixed leg 17 is inserted into the endoporus of barral of a gun 2, and fixing by clamp ring 3, and described rifle head 1 front end is provided with sliding bar 12, sliding bar 12 front ends are spherical Rubber end 11, be provided with spring 16 at sliding bar 12 ends, be provided with draw-in groove 14 on sliding bar 12, be provided with the bayonet lock corresponding with draw-in groove 14 15 on rifle head 2.

As preferably, be provided with hole, the whistle 13 on rifle head 1.

Rifle head 1 and barral of a gun 2 can Rapid Combination and dismountings, are convenient to transportation and deposit.

Elastic spherical rubber 11 a replacement metal tip for the rifle head end of javelin, reduced the lethality of javelin, thereby improve its safety coefficient when training, the correct rifle head that make javelin that throws a javelin first lands, and in insertion ground, after changing the Rubber end 11 of globulate, can not be inserted in ground, can solve in the following manner, correct throwing action, can make spherical Rubber end 11 contact with ground, and promote the resistance that sliding bar 12 overcomes spring 16 and inwardly move, until bayonet lock 15 and draw-in groove 14 interlocks, if wrong throwing action, can not cause sliding bar 12 inwardly to move.That is to say, after javelin lands, whether locked by bayonet lock 15 by the sliding bar 12 that checks rifle head position, can judge that whether throwing action is correct.

Owing to being provided with hole, the whistle 13 on rifle head 1, javelin, under state of flight, can send whistle to play the effect of warning, and safety coefficient further improves.

Above disclosed be only the specific embodiment of this patent, but this patent is not limited thereto, for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model principle, the distortion of making should be considered as belonging to the utility model protection domain.

Claims

1. a teaching and training safety dart, comprise rifle head and barral of a gun, it is characterized in that: rifle head and barral of a gun removably connect, and rifle head end is provided with fixed leg, and fixed leg is inserted into the endoporus of barral of a gun, and fix by clamp ring, described rifle head front end is provided with sliding bar, and the sliding bar front end is spherical Rubber end, at the sliding bar end, is provided with spring, be provided with draw-in groove on sliding bar, be provided with the bayonet lock corresponding with draw-in groove on the rifle head.

2. a kind of teaching and training safety dart according to claim 1, is characterized in that: on described rifle head, be provided with hole, the whistle.