Explosion-proof ball
A technology of explosion-proof ball and ball cover, which is applied in blasting and other directions to achieve the effects of high transmission efficiency, reliable function and compact structure
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[0014] The present invention will be further described below using the accompanying drawings and examples.
[0015] refer to Figure 1-3 , The explosion-proof ball of the present invention includes a ball 1 , a ball cover 4 , a ball cover positioning control arm 15 , a support plate 20 , and a worm gear reducer 5 . The ball cover positioning control arm 15 is fixedly connected with the support plate 20 , and the support plate 20 is fixedly connected with the ball cover 4 . The arc groove 24 at the lower end of the vertical bar of the ball cover positioning control arm 15 is movably connected with the central shaft 2 at both ends of the ball 1 . A swing rod 17 and a torsion spring 18 are sleeved on the swing rod shaft 16 hinged to the support plate 20 , one end of the torsion spring 18 is in contact with the swing rod 17 , and the other end of the torsion spring 18 is in contact with the support plate 20 . The chain 10 hinged at the upper end of the swing rod 17 is successive...
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