High jump cross bar with adjustable elastic deformation
A technology of elastic deformation and high jump, applied in jumping equipment, sports accessories, gymnastics equipment, etc., can solve the problems of high friction between the height adjustment bar and the placement seat, physical damage of athletes, and influence on the results of the competition, so as to reduce injuries risk, reduce friction, and increase fairness
Inactive Publication Date: 2021-11-23
苏泽海
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Problems solved by technology
[0006] The object of the present invention is to provide a high jump crossbar with adjustable elastic deformation to solve the problem that the existing height-adjusting crossbar proposed in the background technology cannot adjust the elastic deformation of the whole crossbar and the crossbar itself. When the crossbar is placed between the placement seats, the deformation of different crossbars is different, and even affects the result of the game, and the strength of the crossbar itself is low, easy to damage and break, and the service life is short, and the existing height-adjusting crossbar The friction between the seat and the placement seat is large, which is easy to cause damage to the athlete's body
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[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0028] see Figure 1 to Figure 7 , an embodiment provided by the present invention: a high jump bar with adjustable elastic deformation, including a rod body 1; the inside of the rod body 1 is a hollow structure, and grooves are provided on the left and right sides of the inner wall of the rod body 1; It includes a connecting screw 101; both ends of the rod body 1 are fixedly provided with a connecting screw 101 by welding, and the outside of the connecting screw 101 is provided with threads, and the inside of the connecting screw 101 at the front end of the rod body 1 is provided with a slot; the inside of the rod body 1 A deformation-resistant compression mechanism...
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The invention discloses a high jump cross rod capable of adjusting elastic deformation, relates to the technical field of high jump cross rods, and solves the problems that an existing height adjusting cross rod cannot adjust the elastic deformation of the whole cross rod and the elastic deformation of the cross rod, the strength of the cross rod is low, and the friction force between the existing height adjusting cross rod and a placement seat is large. The high jump cross bar with adjustable elastic deformation comprises a bar body. A deformation compression-resistant mechanism is arranged in the rod body; an adjusting mechanism is arranged at the bottom in the rod body; and side reinforcing ribs are fixedly arranged in grooves in the left side and the right side of the interior of the rod body in a welded mode. By arranging the rod body, the deformation compression-resistant mechanism, the adjusting mechanism and the side reinforcing ribs, the elastic deformation amount of the rod body can be adjusted, and the accuracy and fairness of competition results are improved; the toughness of the rod body is improved, and the service life of the device is prolonged; and by arranging the placing blocks, the friction force between the placing blocks and the high jump stand can be reduced, and the injury risk of athletes is reduced.
Description
technical field [0001] The invention relates to the technical field of high jump bars, in particular to a high jump bar with adjustable elastic deformation. Background technique [0002] Track and field rules state that the high jump bar "shall be made of fiberglass, metal or other suitable material." The elastic force of crossbars made of various materials is different. In order to limit its elastic range, track and field rules have the following regulations on the elasticity inspection of high jump crossbars: "After placing the crossbar, hang a 3 kg weight in the center of the crossbar. , allowing a maximum sag of 7 cm". Discussion: There will be one elastic force when the above-mentioned crossbar sags by 1mm, and there will be 70 elastic forces when the sag is 7cm. If the athlete touches and presses the crossbar with constant force, the elastic force of the crossbar will determine the rebound height of the crossbar and whether it will fall, that is, success or failure. ...
Claims
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Login to View More IPC IPC(8): A63B5/02
CPCA63B5/02A63B71/0054
Inventor 苏泽海
Owner 苏泽海