1. The ground installation and underground structure of outdoor fitness equipment shall meet the following requirements (except for equipment with large ground frame foundation): 1. Buried equipment columns should be reliably connected with horizontal supports or support plates; 2. The soil quality of the installation equipment shall be the non-loose non-sandy loam geological structure of Class II ordinary hard soil within 800 mm from the surface, and the fastening coefficient shall not be less than 0.7; Otherwise, the soil should be treated equivalently before installing the equipment; Note: Grade II ordinary hard soil with fastening coefficient not less than 0.7 can be determined according to the difficulty of digging with one shovel and several picks. The soil that needs to be excavated with shovels and pickaxes can be regarded as Grade II ordinary hard soil with a fastening coefficient of not less than 0.7. 3. Buried depth of equipment column: When the equipment height is 2000 mm from the ground, it should not be less than 500mm；; ; When the equipment height from the ground is 1000 mm and 2000 mm, it should not be less than 400 mm. When the equipment height from the ground is 1000 mm, it should not be less than 300 mm. There should be a concrete bearing layer with a thickness not less than 100mm below the bottom of the equipment column. 4. The horizontal size of the concrete foundation pit for installing outdoor fitness equipment support columns should not be less than that, and the concrete foundation should not be arranged in the shape of big and small; 5. The strength of concrete used for pouring the foundation of outdoor fitness equipment should be no less than C20, and it should be supervised by special personnel before the foundation is completely solidified; 6. After the outdoor fitness equipment is installed, each supporting column and main body shall be vertical to the installation ground, and the verticality tolerance shall not be greater than1100; 7. The ground within 0.5 m of the outer edge of outdoor fitness equipment foundation should be hardened, such as concrete hardening, masonry paving after soil compaction, etc. The hardened surface of the equipment foundation and its surroundings should not be higher than the ground around the installation equipment.

2. The site and surrounding environment for installing outdoor fitness equipment shall meet the following requirements: 1. The horizontal distance between outdoor fitness equipment and overhead high and low voltage wires shall not be less than 3m; ; 5m； 3. In places where equipment needs to be used at night, the illumination within 2 m of the edge of the equipment should be no less than15lx; 4, outdoor fitness equipment should be far away from flammable, explosive and toxic and harmful substances, fitness venues should comply with the relevant national safety regulations.

3. Outdoor fitness equipment such as horizontal bars, parallel bars, ladders and swings. If you bounce up and down or may fall down due to air movement, you should use soft or elastic cushioning ground, such as sand layer and rubber floor. If it is a rubber floor, the structural thickness of the floor should be not less than 25mm；; ; If it is a bunker, the thickness of the sand layer should be not less than 200 mm, and the periphery of the bunker should be surrounded by a boss with a proper height, and the edges and corners of the boss should be set as rounded corners with a radius not less than 10 mm.

4. The distance between the motion station and the edge of the human motion range should be no less than1m. ..

Five, the design and installation of outdoor fitness equipment, should ensure stability, reliability and vertical, basic components and supporting components should not be loose and shaking phenomenon.