How to install a horizontal bar on the door
1, for the installation of the horizontal bar on the door, the first thing to be determined is the installation position of the horizontal bar on the door at home, and the space distance on the door should be measured, so as to determine the size of the horizontal bar on the door.
2. Then, choose the horizontal bar on the door. In the process of design and production, the product diameter error of the horizontal bar on the door should not be greater than 0.0 1 cm, because the installation requirements of the horizontal bar on the door are very high. In addition, the distance error between the two connection points of the horizontal bar on the door should not exceed 1 cm, and the allowable error of the socket is 2 cm. Therefore, every mistake and door list need to be well controlled, so that this product is suitable when installing.
3, the installation of the horizontal bar on the door, first adjust the height, in general, the height of the horizontal bar on the door is 5 cm higher than the top of the door. Because the bar on the door is elastic, it can ensure that there is buffer space and the bar on the door will not break. Then the horizontal bar on the door and the column supporting the horizontal bar on the door need to be connected by slipknot, which is not only stable, but also convenient to move and disassemble, and can also ensure the elasticity of the horizontal bar on the door.
4. When installing a bar on the door, from the stress requirements, it is necessary to be able to rotate on the bar on the door and keep it from slipping for a long time. Thereby stabilizing the equipment on the horizontal bar on the whole door. By the time it was almost finished, the support column of the horizontal bar on the door could not be shaken.
The principle of bar on the door
The horizontal bar on the door is a kind of family fitness equipment that can be installed on the door frame, which originated in the United States. Using the ingenious mechanics principle and the weight of the body to fix the horizontal bar, there is no modification or damage to the door frame, because the real stress point is not the door frame, but the wall.
There is a harness in the horizontal bar on the door that can adjust the length, and the length can be rotated and extended to both ends. Put it on the door frame, rotate it to both ends, and rely on the huge friction between the high-density black rubber ring and the door frame or wall to generate sufficient supporting force. The outer diameter of horizontal rod, the wall thickness of steel pipe and the material of ring pad play a decisive role in safety.
Practice method of horizontal bar on the door
1, pull-ups Anyone who can finish more than one should focus on practicing pull-ups. Practice once according to the maximum amount you have completed, and then practice after a break 1 ~ 2 times. If you can only complete one, you need to do it repeatedly, preferably 6 ~ 10 times.
2. According to personal strength, choose a climbing pole or rope with both hands or hands, climb 5-6 meters each time and practice 3-4 times.
3. The exerciser stands on the stool, fully flexes his arms to hold the bar, and his hands are shoulder-width apart, so that the bar is under his chin, and then his feet leave the stool to make a static and powerful outreach posture, but his chin is not allowed to hang on the bar. The longer the suspension time, the better. Practice 2 ~ 4 times.
4. Inclined pull-ups require that the bar surface should be flush with the students' nipples, hands should be shoulder width, feet should be extended forward to the ground, so that the arms and trunk are hung at an angle of 90 degrees, and the companion should press the feet to do elbow pull-ups to make the chin touch or exceed the bar, and then reach out again. 30 ~ 45 times as a group, practice 3 ~ 4 groups.
5, supine boom flexion and extension (raising the position of the foot) Students do supine hanging posture on the low horizontal bar, and another student holds his ankle or calf and raises the feet of the practitioner to a horizontal position (or puts the feet of the practitioner on a slightly higher instrument). Pull 25 ~ 40 times as a group and practice 3 ~ 4 groups.
6. The flat ladder moves on the flat ladder. Every time the hand moves forward, the hand moves alternately. Move the ladder once and practice it 4 ~ 5 times.