Safety knowledge sharing: Three treasures, four mouths and five borders, lifting and hoisting without lifting.

Three treasures: safety belt, safety helmet and safety rope

Four openings: stairs, access opening, elevator wellhead and reserved hole

Five borders: foundation pit and trench with a depth of more than 2m; Floor and roof facing edge without external scaffolding; Construction elevator, unloading platform near the edge; Balcony and platform with no elevator installed; The safety and civilized construction of the stairs without railings

should be reflected in both safety protection and civilized construction.

safety protection is mainly to realize the safety protection of "four ports and five borders" by using standardized, instrumentalized and stereotyped facilities.

access protection: buildings, construction elevators and site access openings shall be provided with stereotyped protective sheds, the length of which shall be greater than the radius of free fall at high altitude, and the width and height shall meet the requirements of the project. When the building height exceeds 24m, the top shall be provided with double protection. The protective shed is assembled with whole steel, which is convenient, stable and reliable to install.

stairway protection: steel pipe-type or stereotyped protective railings shall be installed on the stairway constructed in layers, with the height of upper pole not less than 1.2m and lower pole not more than .6m. The two kinds of protective railings are fastened by bolts, which is safe and convenient, and the length of the shaped railings can be adjusted flexibly.

elevator wellhead protection: the elevator wellhead is provided with a stereotyped protective door, which is closed by mesh, with a footboard with a height of 2mm at the bottom and an obvious warning slogan at the middle.

reserved hole protection: the hole with short side size < 15 ㎜ shall be covered with a cover plate with bearing capacity meeting the requirements, and it shall be firmly fixed without displacement; For the hole with a short side size of ≥15㎜, the stereotyped protective railing with a height of not less than 1.2m shall be installed on the operation side, and the baseboard shall be set at the bottom, and the hole shall be closed with a tool fence.

for foundation pits and trenches with a depth of more than 2m, a shaped protective railing with a height of not less than 1.5m shall be set at a distance of not less than .5m from the pit edge, and obvious warning signs shall be hung on the outer side. The upright post shall be firmly installed and can bear external force of 1N in any direction.

For floors and roofs without external scaffolding, fixed protective railings shall be installed around the roof and floors for sealing, and the height shall not be less than 1.2m Footboards shall be set at the bottom. If cross-bar type is adopted, the spacing between cross-bars shall not be more than .6m, and the spacing between vertical bars shall not be more than 2m.

Balcony and platform edge without balustrade: the balcony is enclosed by stereotyped protective balustrade, which is set in the same way as the floor.

Stairs without railings: Stairs and rest platforms are equipped with steel tube-type or stereotyped protective railings, and columns and cross bars are fixed with tool-type connectors. The length of stereotyped railings can be adjusted with the length of stairs.

near the construction elevator and unloading platform: the protective door of the construction elevator is made of all-steel material, installed as a tool, with beautiful overall image and convenient and safe use.

ten non-lifting: pulling obliquely without lifting; Overload does not hang; Hanging objects are not securely tied and not hoisted; Command signal is unknown or illegal command does not hang; The edge of the object to be hoisted is sharp, and it is not hoisted without protective measures; People standing on the hanging objects or moving objects do not hang; Buried components are not hoisted; If the safety device is incomplete or the action is not sensitive, it will not be hoisted if it fails; Do not lift the object with unknown weight, dark light and unclear sight; Don't hang in strong winds above level 6 or in severe weather such as heavy rain, heavy snow and fog.