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Arched cast iron square gate
Arched cast iron square gate

Arched cast iron square gate

Cast iron gate composition:

It is mainly composed of sluice frame, sluice plate, hanger and locking inclined iron. In order to overcome the defect of easy corrosion of steel doors in the past, the sluice frame and sluice are all made of cast iron, and the sluice frame is composed of upper beam, lower beam, left straight beam and right straight beam. In order to facilitate production, transportation and installation, the gate is generally composed of upper and lower parts according to its size or height.

According to the shape of the gate, the gate is divided into two categories: PZ flat plate and PGZ arch. The specific selection can be comprehensively compared and determined according to the size of the gate hole, the pressure head, the opening and closing type, and the weight of the gate.

Gates are divided into two categories: integral type and assembled type according to different combinations of gate structure. Small standard gates are generally made integral, but the gates of construction installation points with poor mechanical transportation conditions can also be made assembling to facilitate manual transportation. Gates above the medium standard can generally be made into an assembled type.

Design of cast iron gate structure:

The sluice frame is the supporting member of the sluice and also the running slide of the sluice. It is fixed in the second-stage concrete of the sluice pier and the sluice bottom plate by anchor bolts to safely transfer all the water pressure received by the sluice to the sluice chamber in. In order to save materials and reduce self-weight scientifically and rationally, the cross-section is made into a lattice type, and the size of the cross-section is comprehensively considered according to the size of the load and the operating conditions of the gate. The gate is a movable water retaining member used to close and open the orifice. The cast iron frame beams are arranged around the surface of the gate. In order to improve the strength of the gate, the surface of the gate is made into an arch shape. The central angle of the arch is designed at 60 degrees to lower it. The water pressure experienced. In order to facilitate the production, transportation and installation, the gate can be made into upper and lower parts. After the installation site, the bolts are used to connect and assemble into a whole. The upper and lower plates of the connection are provided with flanges and ribs to make them the central beam of the gate. To improve the longitudinal rigidity of the gate, longitudinal ribs are set in the width direction to improve its lateral rigidity, and together play the effect of a longitudinal beam.

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