GB/T 18158-2019Specifications of amusement rides merry-go-round category (English PDF)

5.1 Basic requirements

5.1.1 The design documents for merry-go-round amusement ride shall at least include design instructions, design calculations, operation and maintenance instructions, risk assessment reports, design verification outlines and a full set of design drawings that meet relevant national standards.

5.1.5 Important shafts (pin shafts) that are difficult to inspect and detect shall be designed for infinite life.

5.2 Machinery and structure

5.2.1 For merry-go-round amusement ride that uses peripheral transmission, the track surface shall be smooth. The gap at the butt joint of the track shall not be greater than 2mm. The height difference shall not exceed 1mm.

5.2.6 For merry-go-round amusement ride that has passenger restraint device, the safety distance is not less than 500mm outside the inner surface of the seat.

5.2.7 For merry-go-round series, the second floor and above platforms shall have separate entrance and exit. The opening direction of the entrance and exit doors shall be the same as the direction in which passengers enter. The entrance and exit doors shall be equipped with locking devices. Passengers cannot open the doors by themselves during operation. They shall have anti- pinching function.

5.2.12 The foundation of mobile amusement rides shall meet the requirements of equipment carrying capacity. The base frame shall meet the equipment's anti-skid requirements.

5.2.13 The important shafts (pin shafts) and important welds of merry-go-round series shall be non-destructively tested. Non-destructive testing methods and requirements are implemented in accordance with GB/T 34370.For examples of common important shafts (pin shafts) and important welds, see Annex A.

5.3 Ride system

5.3.1 The frame of the passenger device shall be made of metal materials. Seats shall be made of rubber, wood or fiberglass materials.

5.3.6 In accordance with acceleration zone requirements in GB 8408, the merry-go-round series with acceleration in area 4 or area 5, shall be equipped with two independent passenger restraint devices or a fail-safe passenger restraint device. The locking device shall be redundant and easy to check.

5.4 Electrical control system

5.4.1 Safety-related electrical control systems shall comply with the fail-safe principle. When the system has faults such as signal acquisition error, control line disconnection, power supply line disconnection or short circuit, the system shall be guided to safety.

5.4.2 The selection of safety components of the control system shall meet the requirements of GB/T 16855.1.The selection of hardware and software in the electrical and electronic programmable devices of the control system shall meet the requirements of GB/T 20438.

6.1 Basic requirements

6.1.1 The manufacturer shall formulate specific inspection, testing and test plans based on relevant standards, design documents, manufacturing processes and equipment characteristics.

6.1.2 After each product is installed and debugged, it shall be inspected, tested according to the formulated plan. All items are qualified before delivery for use.

6.1.3 The wind speed during the test shall not be greater than 8m/s.

6.1.7 After the test, the parts with problems or doubts shall be inspected, and the causes of the problems found shall be identified in time, and measures shall be taken, and detailed records shall be made.

6.1.8 After each inspection, an inspection report shall be prepared. The inspection report shall at least contain the following information.

6.1.9 The manufacturer shall keep product inspection reports and related records, drawings, quality certification documents and technical documents.

6.2 Machinery and structure

6.2.1 For merry-go-round series using peripheral transmission, measure the gap between rail docking positions. The measurement position is not less than

3.Take the maximum value.

6.3 Ride system

6.3.1 The passenger restraint device test shall be carried out under full load conditions. The restraint device shall work. For amusement facilities with two sets of restraint devices, each set of restraint devices shall function independently. Each set of restraint device shall be tested not less than 3 times.

6.4 Electrical control system

6.4.1 For merry-go-round series, when the rotating platform of the multi-layer carousel allows independent rotation, test the independent control function of each layer under full load conditions. Test the interlocking function of the safety confirmation button and equipment start of the rotating platform on the second layer and above. Test the function of automatically aligning with the stairway when the rotating platform on the second layer and above stops automatically. The test shall be carried out not less than 3 times.

6.5 Emergency rescue

6.5.1 The emergency rescue inspection shall include the effectiveness and timeliness of rescue devices and rescue measures under various foreseeable working conditions in the plan.

6.7 Whole machine

6.7.1 Macro visual inspection shall include all machinery and structures, loading systems, electrical control systems, emergency rescue, surface protection and so on.

6.7.2 Static parameters such as the number of passengers, the number of layers, and the number of cabins in the main technical parameters of merry-go- round series can be obtained through macroscopic visual inspection.

6.7.3 The speed test shall be carried out under full load conditions. After the merry-go-round series are running smoothly, use a stopwatch to measure the time required for continuous operation for 5 weeks. Calculate the rotating speed according to formula (1). Repeat the test 3 times. Take the average value.

7.1 Accompanying documents, marks

7.1.1 The product shall include at least the following accompanying documents before delivery, and shall be placed in the control cabinet box or the host box.

7.1.2 The merry-go-round series shall have product nameplates at prominent locations.