External thread protector with hangable back cover
A technology of external threads and protectors, applied in the field of protection kits, can solve problems such as the inability of the protector to be hoisted
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[0010] attached by figure 1 It can be seen that the present invention includes the steel sleeve 2 and the plastic inner lining 1 provided outside the steel sleeve 2, the top of the steel sleeve 2 is provided with an inwardly stretched arc, and a shoulder 3 is provided between the arc and the plastic inner liner 1. The bottom of the plastic lining 1 is provided with an inwardly recessed back cover 4, and a transition platform 6 is provided between the back cover 4 and the top of the steel sleeve 2 near the shoulder 3, and the depth of the back cover 4 should be greater than 1% of the overall height of the protective cover. / 2, so that the spreader is more tightened during hoisting. The inside of the plastic lining 1 and the outer wall of the steel sleeve 2 are provided with threaded threads 5, which are used to cooperate and connect with the protected steel pipe.
[0011] It should be noted that the embodiments described in the present invention are only preferred modes, and a...
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