A shackle with overload protection function
An overload protection and functional technology, applied in the direction of load hanging components, transportation and packaging, safety devices, etc., can solve the problem of inability to realize overload early warning protection, and achieve the effect of improving hoisting safety, simple mechanism structure, and easy production.
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[0022] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0023] Such as figure 1 , figure 2 , image 3 , Figure 4 As shown, the present invention designs and manufactures the stressed pin shaft 3 into a resistance strain gauge type structure with dual functions of force bearing and inductive weight change, and uses four resistance strain gauges to form a balance bridge. Tare off, so that the bridge is in a balanced state, and there is no voltage signal output. When the crane lifts the heavy object, the pressure of the heavy object causes the pin shaft 3 to slightly deform, which destroys the balance relationship of the electric bridge, thus generating a voltage signal proportional to the load. At this time, the trans...
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