33results about How to "Situations to Avoid Casualties" patented technology

The invention discloses a composite airtight method for a roadway under hard roof caving impact in a goaf. The composite airtight method comprises the steps that a buffer chamber is obliquely excavated to the two sides of the roadway near two roadway stopping lines; a triangular concrete airtight wall is arranged at the position close to the edge of the buffer chamber; three layers of steel wire meshes with sprayed concrete are evenly laid behind the airtight wall in equal distances; and a layer of common concrete airtight wall is arranged behind the steel wire meshes. According to the composite airtight method, in the goaf with a hard roof, huge impact waves generated by caving of the hard roof enter the roadway and are weakened by the triangular concrete airtight wall and the buffer chamber at first, then the rest impact waves are subjected to the flexible impact weakening and absorbing effect of the three layers of steel wire meshes containing the concrete, and at last the remainingpart of impact force is resisted by the common concrete airtight wall. A positive effect is achieved on the roadway and the safety of personnel, and the conditions of equipment shutdown and casualties are avoided.

The invention discloses a high-voltage cable plug joint fixing device and a method for using the same. There is a socket, and the number of sliding shells is set to four, which are distributed in a matrix in the shell. The section of the power socket with the plug interface is arranged between the sliding shells at the top, and the section of the plug with the plug connector is set at the sliding shell at the bottom. Between the shells, the slots are set on both sides of the power socket and the plug, the push plate is slidably set in the sliding shell, one side of which is fixed with a plug matching the slot, and the top sleeve is fixed on the power socket and the plug. The outer periphery of the plug is used to push the upper and lower sliding shells to move toward each other. One end of the connecting rod is hinged on the side of the push plate away from the insert block, and the other end is hinged on the inner wall of the housing. When the upper and lower sliding shells move toward each other, the connecting rod acts to push The plate drives the insert block to be inserted into the slot to fix the power socket and the plug, and now the power socket is connected with the plug.

The invention discloses a mechanical logic device and a using method thereof. The mechanical logic device is composed of a composite safety lock nose, composite mechanical logic lock, safety lock boltand safety lock nose, the safety lock bolt is in a slope shape, a slope is arranged on the slope, the safety lock nose is in a slope shape, a groove is formed in the safety lock nose, the safety lock nose capable of being spliced with one another, the safety lock bolt is arranged right above the safety lock nose which are connected together to form a composite safety lock nose together, the number of the composite safety locking noses and the number of the safety locking noses in each composite safety locking nose, is the same as the number of drawers of the drawer cabinet to be installed. During use, the composite safety lock nose is installed on the same side face of each layer of drawer, the composite mechanical logic lock is installed inside the cabinet body on the side face of the drawer, the space positions of the lock heads and the pins in the composite mechanical logic lock are adjusted, the lock head corresponds to the safety lock bolt, the plug pin corresponds to the safetylock nose, the drawer cabinet can only open one drawer, the problem that the drawer cabinet is turned over due to the fact that the gravity center is moved outwards when a plurality of drawers are opened is effectively avoided.