【 Weak current College 】 elevator inspection "clearance" oversized and prevent harm (go)

We all know, whether in the elevator acceptance inspection or testing process on a regular basis, in accordance with national standards, as well as elevator inspection procedures for specific requirements, we will encounter many of the "gap is too big" problem here, I will for many years the work elevator inspection practice and we discuss, if any irregularity, humour.

First, the national new and old elevator inspection for comparison

Since the elevator from the crane single row, the National Elevator Safety importance, either from national standards or rules for the inspection of national development, on the inner surface of the "wells road and the car in Kham, car door or door frame spacing" in particular, this is against elevator falling accident one of effective measures.

1. Since 1 March 2002 on the supervision and inspection of the elevator code "6. layer station layer door and car door" 6.3 "requirements:" well road inner surface and cabin in Kham, car door or door frame spacing is not greater than 0.15m. ”

2. from 1 January 2005 the elevator installation supervision, inspection and regular inspection of the "3. Wells road," "3.8" requirements: "car and in the face of the cabin entrance of wells road wall spacing is not greater than 0.15m, for local height less than 0.50m or vertically sliding door freight elevator, the spacing for 0.20m. If the car is equipped with a mechanical locking of the door and the door can only be used in a layer of unlock zone is open, the space is unlimited. ”

Old and new from the National Elevator inspection procedures in the us it is not difficult to see that they are in the same point: two check gauges the required dimensions are 0.15m, the range is the same. That is required is well road inner surface and the elevator car and Kham, car door or clearance between the door frame. 2002 implementation of the regulation only requires "wells road inner surface and cabin in Kham, car door or doorframe spacing"; in 2005 in implementing the regulation of this careful elaboration, the three requirements: a, cabin and in the face of the cabin entrance of wells road wall spacing is not greater than 0.15m; b, for local height less than 0.50m or vertically sliding door freight elevator, the spacing for 0.20m; c, such as a cabin is equipped with a mechanical locking of the door and the door can only be used in a layer of unlock zone is open, the space is unlimited. Do this to us in the future elevator inspection process raises, delineated boundaries defined the purpose, thus more conducive to our elevator inspection work smoothly, as well as inspection requirements for the content of the judgment on the new better and more accurate definition of requirements and conditions.

Second, the "gap too much damage and control"

"10th five-year plan" period, China's special equipment (special equipment including large-scale power generation boiler, pressure vessel, crane, elevator and amusement facilities, etc.) of the total level in the "serious" than accident, died 1470 1518, were injured in 1905. If this "gap is too big", the elevator passengers, inspectors and elevator maintenance personnel potential security risk. Therefore the elevator safety accident occurred despite repeated admonition to the country and the people of life and property safety also constitute a threat. Because of the elevator in a power outage or other reason stopped escalator trapped people, passengers in the cabin can be used within a certain force of the elevator cabin door opens, if the car in Kham and wells road wall spacing is too large, it will result in passengers falling elevator shaft road accidents.

Third, the "gap is too big" prevention measures

For this "gap is too large," and the prevention of accidents. That should at least from the following aspects of effective prevention and treatment:

1. grasp the security from the source. Elevator installation acceptance process, the measuring car and face the cabin entrance of wells road wall spacing, detection of conclusions are often excessive "clearance-unqualified", this will give us a lift used units as well as installation units of new and higher demands, be sure to take effective measures to reach this spacing rectification. Today in Shanghai Mitsubishi elevator co., Ltd. production of freight elevator factory design is not difficult to see, in the entire list of elevator delivery, the prevention of cabin and in the face of the cabin entrance of wells road wall spacing is too large, is directly will shield and installation parts designed and placed in the elevator parts box, thereby effectively from the elevator tackle this "gap is too big" to unsafe inorganic.

2. strengthening the prevention of this work, and to take effective measures of propaganda. Sometimes, elevator use units or installation units for some interest-driven, will in the elevator at the end of the acceptance inspection, no serious safety to continue to reform for compromise solutions, but to live with it, so buried under a security risk. Therefore, because of the elevator outages or other reasons the elevator stops running, if you have a passenger were trapped inside the cabin, passengers do not rush to calm, or press the elevator car alarm in the alarm bell, phone, phone calls, waiting for the elevator maintenance personnel or property management company's management and technical personnel of rescue. Never in the car, the car door civil strife on its own to cause unnecessary harm. This requires extensive knowledge of the security of information, such as: quality and technical supervision departments or community property management company should post effective elevator safety knowledge, the correct operation of elevator and its effects, and so on.

3. increase supervision when left elevator acceptance inspection of safety measures. Quality and technical supervision departments of the inspection officers in acceptance test has finished, the elevator will leave in accordance with the requirements of both triplicate elevator use of the owner, responsible persons, Elevator installed unit testing and inspection personnel at the signing of the "city of special inspection rectification notice", need to be rectified and project requirements for elevator installation unit in conjunction with the use of units with the rectification has been completed, and in the "city of special security concern rectification confirm" documents signed, the escalation of the statutory bodies of special equipment inspection and testing, then there is special equipment testing and inspection bodies and inspection officer to verify, record and produce inspection report, the SpecialDevice registration certificate issued by the device after the inspection. Elevator use of the units in the elevator registration and other formalities could be put into operation.

4, strictly follow the elevator manufacturer of elevator shaft road dimensions and design requirements. In recent years, China's design company in accordance with the elevator use units of design requirements for design, there is no strict as elevator shafts technology parameter requirements for specialized design, the entire design process elevator use of the units do not know how many times you want to modify, elevator use of the units does not find local statutory elevator inspection bodies of the elevator shaft road design recommendations and observations (as in the past few years the elevator acceptance inspection finds that the elevator machine room, well road in other devices, the entire premises in grounding system, fire fighting pipes and hydrants, etc.), thereby remaining the "gap is too big", for the next elevator acceptance inspection work causing unnecessary trouble.

To sum up, in the hope that the national elevator manufacturer in the production of each elevator, have to consider this "gap istoo large," preventing problems, do not leave a security risk.