Enclosuring-hoop type curled-edge like enclosure, its sealing, clamping and making method
A technology of closure and closure hoop, applied in the directions of sealing, clamping device, closing, etc., can solve the problem of not being able to reliably clamp the top cover of the barrel
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[0020] Fig. 1 is 200 liters of closed conical steel barrels 7 of detachable barrel top cover. It is equipped with an integral ring-shaped closed hoop-type crimping type closure. The closed conical steel drum is exactly the same as the closed cylindrical steel drum in use, only when the empty drum is transported and the old drum is cleaned and repaired. Just need to insert dismantling port 14 with tool, rotate counterclockwise, open closing device and take off barrel top cover 3. It is transported and cleaned and repaired as a full-open conical steel drum. The functions and structures of its cylindrical barrel body 4, reinforcing ribs 5, conical barrel body 6, barrel body lower part 8, barrel bottom 10 and convex edge 9 are all Known ones are no longer described here.
[0021] From Fig. 2 and Fig. 3, it can be seen that the flange 12 of the bucket top cover 3 is composed of two overlapping arc grooves with different radii. Under the clamping effect of the side 23 and the wrap...
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