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Futian:Residentialzone
Huaqiang -
Luohu:Diwang building
Blackstone
Rookie village -
Nanshan:Xili taoyuan
ShekouThe oil tower -
Baoan:Longhua building
Rock street
Business building
Shajing tail -
Longgang:Center city
Bus station -
Yantian:Sha tau kok
Harbour building
Locked in a locked state, the marbles in the marble hole of lock body and lock heart overlap, if use something inserted in the keyhole, twist lock heart forcibly rotating clockwise (general rotation within 5 ~ 15 °), the situation is not the same. First as a result of the action of twisting, formed in the lock core marble hole about 80 ° inclination of (because 90% of the marbles marble diameter hole diameter, so can reach 80 ° slope). The second grain of marbles are different, because it is twist clockwise direction, forming only about 60 ° slope. Why this happen? Because the marble is less than the marble hole, marbles have activity space. The second grain of marbles in a lock body marble hole again With the lock core marble hole interface, the upper occupies space. Lock heart after 5 ~ 15 °, open a lock heart and lock body marble hole is not straight, but form the dislocation and dislocation after the handover of overlapping the mouth is the lock body Bead hole and the lock core marble overlap part of the orifice, is no longer the original 20 meters, only 16 ~ 17 m.
Lock heart marble hole and lock body marble hole: after the formation of dislocation. Second bottom tilted to the right, a marble top bottom touching the lock body marble hole in the wall; Sewed to the left, top touch the lock core marble hole in the wall. Combined with external forces (don't twist lock core spinning force) role still exist, the second grain of marbles torn out don't get stuck. As you can see above, the second grain marbles locked heart marbles orifice and the top and the bottom right hand corner of the locked marbles orifice against the top left hand corner. In this way, the second grain marbles stuck around but not up and down.
So, when the first grain of marbles are under external pressure, collision force second marbles, second marbles will be forced to press down below, forced downward movement, situation is as follows: the second grain of marbles are strong first marbles line pressure to the lower part, when the first grain of marbles to the lock body under the bottom of the marble orifice, locked and marbles left upper corner of the outer limits of the orifice to resist and pressing down on them. The second marble by first marbles pressure until the lock marbles orifice can no longer be pressure to press from time to time. At this time, the upper end of the second grain of marbles coincided with the lock body marbles orifice is flat. At this time, the lock heart and lock body has formed a state of separation. Lock the heart of the original under the action of external force (twist and turn of the force), will automatically turn to a certain degree.