33results about How to "There will be no problem of breaking" patented technology

A chemical vapor deposition reactor or an epitaxial layer growth reactor comprises a reaction chamber; at least one substrate bearing rack and a support device for supporting the substrate bearing rack are disposed in the reaction chamber; the substrate bearing rack comprises a first surface and a second surface; the second surface of the substrate bearing rack is provided with at least one recessed part recessing inwards; the support device comprises a main shaft part, a supporting part which is connected with one end of the main shaft part, extends out along the periphery of the main shaft part, and comprises a supporting surface, and a plugging part which is connected with the main shaft part, and extends to a height along a direction towards the first surface of the substrate bearing rack; the plugging part of the support device can be separatedly plugged into the recessed part, so as to allow the substrate bearing rack to be placed on the support device and to be supported by the support device. The substrate bearing rack of the invention can realize balanced and reliable rotation during substrate processing process.

The invention relates to the technical field of anti-theft doors, and discloses an electromagnetic anti-theft door, which includes a door frame, a door leaf and an anti-theft lock on the door leaf. The anti-theft lock includes a lock body and a key. The lock body includes at least one bolt and a lock fixed in the lock body. The expansion and contraction of the lock bolt is controlled by the energization or de-energization of the first electromagnet, and the energization or de-energization of the first electromagnet is controlled by the first control circuit. There is a slot recessed on the side of the lock cylinder facing the outside of the door. , a control module that can connect or disconnect the control circuit is arranged in the lock cylinder, and the control module includes N (N≥8) through slots that are recessed in the inner wall of the slot along its circumferential direction and / or axial direction. A contact module fixedly arranged at one end of the through slot away from the slot and a telescopic member elastically and telescopically arranged in each through slot, the key includes an insertion rod and a first control circuit that can be telescopically arranged on the outer ring wall of the insertion rod Connected unlocking parts, thieves can't open the security door at all by using the traditional crochet and tin foil filling unlocking methods.

The invention belongs to the technical field of copper-clad steel wire, and specifically relates to a high-flexibility copper-clad steel wire. The high-flexibility copper-clad steel wire comprises a low carbon steel layer, a pure iron layer, a copper plating layer, outer arc-shaped bending plates and inner arc-shaped bending plates; the pure iron layer is arranged at the outer part of the low carbon steel layer and wraps the low carbon steel layer; four outer arc-shaped bending plates which are prepared from 304 stainless steel are uniformly arranged in the pure iron layer in the circumference direction; the copper plating layer is arranged at the outer part of the pure iron layer and wraps the pure iron layer; the low carbon steel layer contains 0.2 to 0.25% of carbon; the pure iron layer contains 0.02 to 0.03% of carbon content. According to the high-flexibility copper-clad steel wire, the outer arc-shaped bending plates and the inner arc-shaped bending plates are provided to improve the flexibility and the fatigue resistance; the social benefit and economic benefit are increased.

The invention relates to a mop barrel, belongs to the field of daily necessities, and overcomes the defects that an existing mop barrel is large in space occupation, easy to damage and wasteful in water and space, and more dead corners exist inside the barrel. The two-in-one mop barrel which is convenient to use and integrated with functions of cleaning and dewatering comprises a barrel body, a dewatering basket and a top cover, the dewatering basket is located in the barrel body, and the top cover is located at the side edge at the top end of the barrel body; the mop barrel further comprises a horizontal-movement positioning and limiting system and a buoy which is located under the dewatering basket; the horizontal-movement positioning and limiting system comprises a vertical shaft, an eccentric wheel and a horizontal-movement positioning and limiting supporting slider; the horizontal-movement positioning and limiting supporting slider is provided with an eccentric wheel sliding groove and reset springs; the vertical shaft is located in the barrel body, the eccentric wheel penetrates the vertical shaft to be located in the eccentric wheel sliding groove, and the reset springs are located on the horizontal-movement positioning and limiting supporting slider and between the horizontal-movement positioning and limiting supporting slider and the barrel body. The mop barrel is scientific and reasonable in design, different from the design principle of the existing rotating mop barrel, simple, less prone to damage, small in space occupation, energy saving, water saving and suitable for popularization and application.