Cross rod fixing device

Abstract

The invention discloses a cross rod fixing device which comprises a column. The column is provided with a protective sleeve, the protective sleeve is connected with the column through an adjustable bolt, a fixing support is installed on one side of the protective sleeve and is fixed to the protective sleeve through a bolt, a vertical plate is arranged on the other side of the protective sleeve, the vertical plate is connected with the protective sleeve through at least two hinges, the hinges are arranged to be close to the top and the bottom of the vertical plate respectively, and an anti-slip plate is arranged on the outer side of the vertical plate and is connected with the vertical plate through a spring connecting piece. The cross rod fixing device is simple in structure, the height of the cross rod fixing device on the column can be conveniently and quickly adjusted, the teaching and training needs of the height of two cross rods can be met through one-time adjustment, and the cross rod fixing device is good in protectiveness and can be well used in physical education.

Description

Technical field [0001] The invention relates to a fixing device, in particular to a crossbar fixing device. Background technique [0002] In the process of high jump teaching and training, the height of the crossbar needs to be adjusted at any time. In the prior art, the high jump crossbar fixing device for training usually uses a casing set on the column to fix the crossbar support plate on the column. The casing is provided with Tighten the top wire. When adjusting the height of the cross bar, you need to loosen the top wire first, slide the casing to an appropriate height, and then screw the top wire to lock the casing on the column. Due to the height of the cross bar during training and teaching Adjustments are frequent, so the high jump crossbar fixing device using this casing structure is troublesome to operate, and it is easy to cause safety hazards due to students tripping on the rubber band and pulling the high jump frame down. It also makes the students lack of success ...

AI Technical Summary

Problems solved by technology

[0002] In the high jump teaching and training process, the height of the cross bar needs to be adjusted at any time. The high jump cross bar fixing device for training in the prior art mostly adopts a casing sleeved on the column to fix the cross bar supporting plate on the column. Lock the top screw. When adjusting the height of the cross bar, you need to loosen the top screw first, slide the casing to an appropriate height, and then screw the top screw to lock the casing on the column. Due to the height of the cross bar during training and teaching Adjustment is frequent, so the high jump crossbar fixing device adopting this casing structure is troublesome to operate, and it is easy to cause students to have safety hazards because of stumbling over the rubber band and pull down the high jump frame, and it also makes students lack confidence in the success and success of the trial jump in the high jump practice. actual experience of failure

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