The installation of indoor suspended basketball hoops requires a focus on three core aspects: structural assessment, component installation, and safety commissioning. Specific steps and precautions are as follows:
I. Pre-installation Preparation: Structural Assessment and Scheme Design
Roof Load-Bearing Capacity Testing: Engage a professional organization to perform load calculations on the roof structure, ensuring that the load-bearing capacity of the embedded steel structure or clamp fixing device is ≥800kg (far exceeding the 400kg safety redundancy for the impact force of basketball).
If the roof is a concrete beam, check the reinforcement density and concrete grade; if it is a steel structure roof, confirm that the specifications of the H-beams or I-beams are compatible with the clamp fixing device (clamping thickness range 50-200mm, clamping force ≥1200kg).
Installation Scheme Design
Height Adjustment Requirements: To accommodate both youth training (2.6 meters) and adult standard (3.05 meters), select an electric dual-motor synchronous drive system that supports stepless adjustment with an accuracy of ±1mm.
Spatial Flexibility Requirements: If the venue requires switching between different scenarios (e.g., from basketball to badminton), choose a model where the main load-bearing beam can move laterally (0-6 meters) or rotate (0-90°).
Noise Reduction Requirements: If the venue is located in a residential area or next to a library, choose a 12mm double-layer laminated tempered glass backboard (light transmittance ≥92%, impact noise ≤65dB) and a high-strength nylon protective net (1.2 meters high).
II. Installation Steps: Core Component Fixing and Debugging
Embedded Parts/Fixing Device Installation
Embedded Steel Structure: Cast Q345 grade steel structure embedded parts (single load-bearing capacity ≥1000kg) in the roof and connect them to the main load-bearing beam of the basketball hoop using M20 high-strength bolts (bolt torque ≥150N·m).
Clamp-type Fixing Device: If there are no pre-embedded conditions in the roof, use clamps adapted to H-beams or concrete beams. After installation, pass a third-party load-bearing test (clamping force ≥1200kg). Main Load-Bearing Beam and Suspension System Installation:
The rectangular steel pipe main load-bearing beam (specifications ≥150mm×80mm×5mm) is secondary fixed to the roof using diagonal steel cables (diameter ≥12mm, breaking strength ≥150kN), forming a stable triangular structure to ensure a sway amplitude ≤50mm (national standard ≤100mm).
Shock-absorbing bearings (absorbing 30% of impact energy) are installed at the connection between the beam and the backboard to reduce vibration transmission to the roof.
Backboard and Hoop Installation:
Backboard Installation: A 12mm double-layer laminated tempered glass backboard is used, with 50mm thick rubber buffer strips added to the edges. Connection points are on the same plane and the force is evenly distributed.
Hoop Installation: A 16mm solid round steel hot-dip galvanized hoop is selected (zinc layer thickness ≥85μm), with an inner diameter of 45cm±1mm, equipped with an elastic shock-absorbing device (capable of withstanding 100,000 simulated dunk tests without deformation). Electric Adjustment System Installation (Optional)
Install a dual-motor synchronous drive system to adjust the backboard height via wire rope transmission. The control panel integrates a height memory function (allowing for 3 preset commonly used heights).
The adjustment system is equipped with an overload protection device (automatically stopping adjustment when the external force exceeds 500N) to prevent damage to the motor or structure.
III. Safety Testing and Acceptance
Stability Test
Simulate a dunk impact (external force 400kg) and check if the basketball hoop sway is ≤50mm, and if there is any looseness at the connection between the main load-bearing beam and the roof.
Test the electric adjustment system to confirm the backboard height adjustment accuracy is ±1mm, and the single adjustment time is ≤40 seconds.
Collision Safety Check
Confirm that the backboard has R20mm rounded corners, and install a 300mm wide EVA foam soft protective plate (density ≥40kg/m³) under the main load-bearing beam.
Check if the PVC protective sleeve on the outside of the height adjustment wire rope is intact to prevent wear and breakage.
Intelligent Function Linkage Test (Optional)
If the basketball hoop integrates an intelligent system, test its linkage function with lighting, sound, and scoreboard (e.g., automatically activating a dedicated lighting mode when adjusted to game height).
Test the accuracy of motion data acquisition functions (e.g., shooting percentage statistics, dunk count records).
IV. Maintenance and Precautions
Regular Inspection
Monthly check the suspension system, bolts, and steel cables for tightness, and tighten any loose parts promptly.
Six monthsly, commission a professional organization to conduct a load-bearing test to ensure the safety of the roof structure.
Usage Guidelines
Do not strike the backboard with bricks, stones, or other hard objects. Dunking is prohibited on non-spring-loaded hoops.
When moving the basketball hoop, ensure the electromagnetic locking device is securely fixed (locking force ≥ 3000N).
Cleaning and Maintenance
Use a neutral detergent to clean the backboard; avoid using corrosive cleaners.
Regularly clean dust from the steel cables and shock-absorbing bearings to prevent wear.
