The child and the mother hoop is suitable for a large hoop installed on the pole, and another small hoop holds a combination of the cable protection tube, the material is the use of 4*40 steel plate, the surface is hot-dip galvanized treatment, the order needs to provide the rod diameter and the diameter of the cable protection tube, in order to be customized.
The hooping device is composed of hooping plate, wing plate, tension reinforcement plate, bolt and inner liner.
There are many kinds of hoops, cable hoops, pole hoops, wire hoops, hanging wire hoops, stainless steel hoops are more commonly used.
An embedded hoop, which is made of left and right two half pieces of hoop after joining, left and right two half pieces of hoop are semicircular ring, the two ends of the half ring are bent outwards
Folding, each form a mounting ear, which is characterized by: the left half of the band one end of the mounting ear is opened with a slot, corresponding, with the right half of the piece
A pin shaft is arranged on the corresponding end of the mounting ear of the holding hoop
The pin shaft on one end of the right half piece holding hoop is inserted into the inlay slot on one end of the left half piece holding hoop mounting ear.
Factors affecting the quality of hoop installation:
1, the hoop must not have holes, sand holes, shrinkage cracks and other defects.
2, the material and energy of the sealing ring must meet the requirements, the sealing surface must not have bubbles, impurities, cracks, uneven defects, can not use the aging rubber ring.
3, the movement distance of the clamp ring in the British riveted head throat hoop is theoretically half of the joint expansion, and the actual amount should be measured. If it is not reached, it can not meet the expansion of the pipelineSeek. In order to promote the sealing effect, before the factory and the British riveted head throat hoop supporting the left and right end pipe, the actual project should not use ordinary pipe directly replace the end pipe, and the end pipe end face and shaft
The perpendicularity of the line and the plane of the end face itself
The degree has certain requirements, and the size is not standard, so that the expansion of the joint is greatly reduced, which can not meet the requirements of use.
4, the diameter of the end tube should be selected as a positive deviation, otherwise the clamping force on the sealing ring is not enough, affecting the sealing effect of the joint.
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