CN204864815U - Handball door that convenient teaching was used - Google Patents

Abstract

The utility model provides a handball door that convenient teaching was used, belongs to the sports teaching and uses the equipment. It provides portable, as can to show the time of giving lessons an at any time handball door that convenient teaching was used. It includes four spinal branch vaulting poles, four crossbeams, net, electronic clock, four shaft and four gyro wheels, isometric and the vertical setting of four spinal branch vaulting poles, crossbeams of top fixedly connected with of every two adjacent spinal branch vaulting poles, the cube support is constituteed to four spinal branch vaulting poles and four crossbeams, be provided with the net on the support, four spinal branch vaulting poles are the hollow bar, and the below of an arbitrary lateral wall of four spinal branch vaulting poles is divided equally and do not is equipped with a round curved hole, and the one end of every shaft is all articulated with the lower extreme of the bracing piece medial surface that corresponds, and the round curved hole of the bracing piece that corresponds is all worn out to the other end of every shaft, and a gyro wheel is installed in the rotation on every shaft, an arbitrary crossbeam ball -joint in electronic clock and four crossbeams. The utility model discloses portable, can show the time of giving lessons at any time.

Description

The handball door that a kind of convenient teaching uses

Technical field

The utility model relates to physical education equipment, particularly relates to a kind of handball door.

Background technology

Handball is a kind of ball game originating from Germany.Substantially, handball adds the mixture of basketball like football.Meanwhile, some rules of handball are developed by the rules back of basketball.

Many universities of present stage China have also offered the physical education of handball, due to other factors such as the problem of sporting fields and facilities or weather, sometimes need mobile handball door, but existing handball door majority is inconvenient to move, to the inconvenience brought of imparting knowledge to students, limit carrying out smoothly of handball teaching.

When carrying out handball teaching, due to the antagonism of team handball, teacher and classmate's not easily worn wrist-watch, taking the time to give lessons to teacher causes certain difficulty.

Summary of the invention

For the deficiencies in the prior art, the handball door that the utility model provides a kind of convenient teaching that is removable, that can show hours of instruction at any time to use.

The technical measures that the utility model is taked are: the handball door that a kind of convenient teaching uses, comprise four support bars, four crossbeams, net, electronic clock, four wheel shafts and four rollings, described four support bars are isometric and vertically arrange, often the top of adjacent two support bars is fixedly connected with a crossbeam, described four support bars and four crossbeam composition cubic support, described support is provided with net; Four support bars are hollow stem, the below of any sidewall of four support bars is provided with a circular arc through hole respectively, one end of each wheel shaft is all hinged with the lower end of corresponding support bar medial surface, the other end of each wheel shaft all passes the circular arc through hole of corresponding support bar, each wheel shaft is rotatablely equipped with a roller, any one the crossbeam ball-joint in described electronic clock and four crossbeams.

The beneficial effects of the utility model are:

1. the position-adjustable of roller, when roller exposes support bar, the utility model can slide, and time in roller retraction support bar, the utility model Absorbable organic halogens is arranged on destination locations.Therefore, the utility model not only has mobility but also have stability.

2. electronic clock has time reporting function, and teacher and classmate can be facilitated to take the time, and holds teaching process.

Accompanying drawing explanation

Fig. 1: the utility model structural representation;

Fig. 2: the A portion enlarged drawing of the utility model;

Fig. 3: the B direction view of the utility model;

Wherein: 1-support bar; 2-crossbeam; 3-net; 4-circular arc through hole; 5-wheel shaft; 6-roller; 7-support bar cover; 8-electronic clock.

Detailed description of the invention

As shown in Fig. 1 ~ 3, the handball door that a kind of convenient teaching uses, comprise four support bars, 1, four crossbeams 2, net 3, electronic clock 8, four wheel shafts 5 and four rolling 6, described four support bars 1 are isometric and vertically arrange, often the top of adjacent two support bars 1 is fixedly connected with a crossbeam 2, described four support bars 1 and four crossbeams 2 form cubic support, described support are provided with net 3; It is characterized in that: four support bars 1 are hollow stem, the below of any sidewall of four support bars 1 is provided with a circular arc through hole 4 respectively, one end of each wheel shaft 5 is all hinged with the lower end of corresponding support bar 1 medial surface, the other end of each wheel shaft 5 all passes the circular arc through hole 4 of corresponding support bar 1, each wheel shaft 5 is rotatablely equipped with a roller 6, any one crossbeam 2 ball-joint in described electronic clock 8 and four crossbeams 2.

Described electronic clock 8 is waterproof electronic clock.

The outside of described electronic clock 8 is set with protection network.When handball is because surprisingly touching electronic clock 8, protection network plays the effect of protection electronic clock 8.

The handball door that described convenient teaching uses also comprises four support bar covers 7; Described four support bars cover 7 difference Demountable assembling is in the lower end of four support bars 1.Its effect is: support bar cover 7 prevents support bar 1 from inserting ground or scratching floor, plays firm overall effect simultaneously.

Operation principle: the height of the utility model by regulating the position of wheel shaft 5 place circular arc through hole 4 to regulate roller 6, when wheel shaft 5 is in the lower end of circular arc through hole 4, roller 6 exposes support bar 1, can promote handball door of the present utility model to required position; When wheel shaft 5 is in the upper end of circular arc through hole 4, roller 6 support bar 1 of retracting is inner, and be sleeved on support bar 1 by support bar cover 7, the utility model remains static.

Claims (4)

1. the handball door of a convenient teaching use, comprise four support bars (1), four crossbeams (2), net (3), electronic clock (8), four wheel shafts (5) and four rollings (6), described four support bars (1) are isometric and vertically arrange, often the top of adjacent two support bars (1) is fixedly connected with a crossbeam (2), described four support bars (1) and four crossbeam (2) composition cubic support, described support is provided with net (3); It is characterized in that: four support bars (1) are hollow stem, the below of any sidewall of four support bars (1) is provided with a circular arc through hole (4) respectively, one end of each wheel shaft (5) is all hinged with the lower end of corresponding support bar (1) medial surface, the other end of each wheel shaft (5) all passes the circular arc through hole (4) of corresponding support bar (1), each wheel shaft (5) is rotatablely equipped with a roller (6), described electronic clock (8) and any one crossbeam (2) ball-joint in four crossbeams (2).

2. the handball door of a kind of convenient teaching use according to claim 1, is characterized in that: described electronic clock (8) is waterproof electronic clock.

3. the handball door of a kind of convenient teaching use according to claim 1, is characterized in that: the outside of described electronic clock (8) is set with protection network.

4. the handball door that a kind of convenient teaching according to claim 1,2 or 3 uses, is characterized in that: the handball door that described convenient teaching uses also comprises four support bar covers (7); Described four support bar covers (7) difference Demountable assembling is in the lower end of four support bars (1).