Seat belts are personal protective equipment for high altitude workers to prevent falling injuries. They are made up of belts, ropes and metal fittings. They are collectively called safety belts. It is suitable for working at heights such as surrounding poles, suspensions, and hanging climbing. It is not suitable for fire fighting and hanging objects.
First, species classification and code
1) The use of safety belts is divided into two types: belts, suspension belts and climbing belts.
2) Seat belts are serialized according to species, using Chinese Pinyin letters in front and back to represent different types of work, different methods of use, and different structures. The symbolic meanings are as follows:
D—Electrician, DX—Telecommunications Worker, J—Rackworker, L—Railway Commissioning Worker; T—General Purpose (Oilworker, Shipbuilder, Mechanic, etc.); W—Pole Manoeuvring; W1—Wall Rod-and-belt type, W2—enclosure rope type; X—hanging operation; P—climbing operation; Y—single belt type; F—anti-dropout type, B—dual harness type, S—self Pin type; H - active type, G - fixed type.
Examples of symbol combinations are as follows:
DW1Y——Electrician fence rod with single belt type; TPG - Universal climbing fixed type.
Second, technical requirements
1) Break load indicators for seat belts, ropes and metal fittings.
2) The waist belt must be a whole, with a width of 40-50mm and a length of 1300-1600mm, plus one additional pouch.
3) The width of the protective belt is not less than 80mm and the length is 600-700mm. The belt contacts the waist with a soft material, and the outer layer is wrapped in a webbing or light leather with rounded edges and no corners.
4) The color of the tape is mainly dark green, grass green, orange, dark yellow, followed by white. The color of the thread must match the color of the tape.
5) The diameter of the safety rope is not less than 13mm and the twist is 8.5-9/100 (flower/mm). The diameter of the sling and the surrounding rod rope is not less than 16mm, and the twist is 7.5/100 (flower/mm). The welder's hanging rope must be fully jacketed. The other hanging ropes are only partially covered, and the hanging ropes are not jacketed. The rope heads are to be braided with 3 to 4 twisted and pressed stocks. The stock ropes are not allowed to have elasticity.
6) The metal hook must have a safety device, with the exception of special railway hooks. When the teeth of the self-pinning hook are used on the wire rope, the hardness is Rockwell HRC60. The metal knuckle spring can effectively restore no less than 20,000 times. The mouth of the hook and the knuckle must be flat and must not be deflected.
7) metal parts ring, half-ring, triangle ring, 8-word ring, product ring, three links, welding, edge into a rounded shape. The adjustment ring only allows butt welding. The surface of the metal fittings is smooth and free from pits and cracks. The edges are rounded and the surface must be rust proof. Accessories that do not meet the above requirements must not be installed.
Third, seat belt material
1) Seatbelts and ropes must be made of nylon, vinylon, and silk; electrical fences can be made of cattle with leather; ordinary carbon steel or aluminum alloy steel for metal fittings.
2) Wrapped ropes are made of leather, webbing, vinylon or rubber.
This article is an article of Qingdao Zhongbang Instrument Co., Ltd. If you need to reprint it, be sure to add the source of the description. Reproduce the misappropriation without permission.
PVC High Speed Rolling Door
High speed door
Hongfa fast shutter doors by the Division we learn from foreign advanced technology and equipment , and to draw on the advantages of similar products in domestic self-developed high-tech products , with insulation , insects, wind , dust, noise, anti-odor, lighting and many other features , the high speed door can be widely used in food , chemical , textile , refrigeration , electronics , printing , assembly , precision machinery , logistics . warehousing and other places , the high speed rolling shutter door Can be extremely satisfying frequent high-performance logistics and clean place with a variety of needs and saving energy , increasing air-conditioning effect , fast closing , improve operational efficiency and create a better work environment
Material Selection:
1. Frame: 2MM thicknesses cold-roll Stainless steel.
2. Motor: Germany SEW brake motor (outer), power 0.75KW, power supply 220V.
3. Control system: Imported Japan Mitsubishi converter and PLC to control of electric box (150%1HZ)
4. Opening & closing speed: 0.6-1.5m/s (adjustable).
5. Safety Device: Korea Photocell Sensor, emergency stopping reaction when sensing obstacles.
6. Curtain: France high-density polyester fiber and the surface coating processing, thickness 0.8MM, variety colors can be chose: Red, yellow, blue, green, orange, gray, white, transparent, etc. Tensile strength: 4000/3500N/5cm, tear strength 600/600N. Fire-proofing level: German standard DIN75200 Usage temperature: -30 ° C +70 ° C.
7. Wind resistant: The Aluminium alloy Reinforce Girder to increase wind resistant effect.
8. Curtain replacement function: Aluminium alloy Reinforce Girder is loaded between 2 pieces Curtain, can be replaced easily if any curtain broken, save your cost.
9. Transparent window: 1.2MM thickness transparent PVC window, size and location is up to your request, more safer.
10. Seal: Seal brush are Installed inside the guides, and the special bottom design, to fit any uneven ground.
11. Cotrolling way: Push button + radar sensor, very convenient.
12. Limiting Switch: Mechanical limiting switch, easily and exactly.
13. Emergency STOP: With emergency stop button on control panel, can stop easily by
Hand once disconnect or accident
14 Fault recovery function: All Hongfa's production is with fault recovery function, system will self-recovery after power cut off.
15. Delivery time: About 7 business days with contract and deposit confirmed.
16. Pyament item: 50% before production, and the other 50% before shipment.
17. Warranty Details: We provide 12 months warranty for all doors and accessories (except man-made disasters, Irresistible natural disasters, ect^).
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SHENZHEN HONGFA AUTOMATIC DOOR CO., LTD , https://www.hongfahsrs.com