Front mounted plastic flip-up retractable bleacher seat structure design specification
Technical specifications for the design of movable grandstand seats
1、Specifications of grandstand seat bracket structure: step width 900mm, step height 300mm.
2. Seat name and specification: low-back seat, seat width 440mm, seat depth 510mm, seat height 530mm, seat installation distribution center distance 460mm-520mm.
3, bleacher seat material introduction: 1, the design, selection and installation of the seat with the stadium design, beautiful and comfortable, safe, durable, easy to install maintenance and management . The seat surface adopts hollow blow molding manufacturing process, selecting high-density polyethylene materials (HDPE) one-time processing and molding, with seat surface edges and corners smooth, molecular weight concentration, high bonding strength at the confluence of joints, high rigidity and toughness, good mechanical properties and high temperature, anti-aging, impact resistance, high and low temperature resistance, oil resistance is good.
2, the comprehensive performance of the seat should be in line with the standards and industry standards.
3, mechanical properties: chair static load 2000N, 20 times, chair back static load 800N, 20 times, seat balance load 2000N; seat durability: chair surface load 960N, 200,000 times, chair back load 350N, 200,000 times, chair impact height 360mm, 20 times, chair back impact height 630mm, 20 times; seat parts without fracture or crack phenomenon, loading parts without obvious deformation, seat structure without 360mm, 20 times, chair back impact height 630mm, 20 times; seat parts without fracture or open phenomenon, no obvious deformation. There is no obvious deformation in the seat parts and no loosening of the seat structure.
4, aging resistance aging test ≥ 3500h, impact strength retention rate should not be less than 60%, the appearance of color change rating is not less than 3 levels;
5, high and low temperature performance: According to the technical conditions of the enterprise, in the high temperature +80 ℃, low temperature -60 ℃ 72h, no local changes, cracks, spots, bubbles and obvious deformation and other appearance changes.
6、Flame retardant performance: seat density ≤ 50 %, flame retardant level 1.
7, the color of the seat group: provide international standard plastic color (PANTONE) by the owner, the design institute to determine.
4, bleacher expansion mode: manual, electric contraction.
Cangzhou Haoran Sports Equipment Co., Ltd, located in Cangzhou, a famous cultural city with a long history, is a well-known enterprise that specializes in providing a variety of high-quality sports equipment. The company has a wide range of product lines, including basketball hoops, table tennis tables, and track and field gymnastics and other sports equipment.
As one of the company's star products, the basketball hoop has won the praise of the majority of users for its solid structure, excellent material and precise installation process. Whether it is for schools, communities or professional basketball courts, basketball hoops from Hao Ran Sports can meet your multiple needs for safety, durability and aesthetics.
In terms of table tennis tables, the company also spares no effort to pursue quality and innovation. Each table tennis table is strictly inspected to ensure that its surface flatness and elasticity meet international competition standards, so that every table tennis enthusiast can enjoy a professional-level competitive experience.
In addition, Cangzhou Haoran Sports Equipment Co., Ltd. is also committed to the research, development and production of track and field gymnastics equipment. Whether it's treadmills, dumbbells, or singles and doubles, the company adheres to a user-centered approach, constantly pushing the boundaries of innovation, and strives to provide athletes and fitness enthusiasts with safe and efficient training tools.
As a professional sports equipment supplier, Cangzhou Haoran Sports Equipment Co., Ltd. always adheres to the principle of “quality, customer first”, and is committed to providing the best quality sports equipment and services for users around the world. Whether you are a school physical education teacher, or a professional athlete, or an ordinary citizen who loves sports, Haoran Sports is willing to be your best partner on the road of sports.