54results about How to "Simple combination" patented technology

The invention provides a high-impedance combined-type transformer which comprises three single-phase transformers and three transformer oil tanks, wherein the three single-phase transformers are respectively arranged in the three transformer oil tanks; the three single-phase transformers are combined to form a three-phase transformer; in the three-phase transformer, each phase of transformer comprises a low-voltage winding, a medium-voltage winding and a high-voltage winding; a reactor is arranged in each transformer oil tank; and the low-voltage winding of each phase of transformer is connected in series with the reactor of the transformer oil tank where the phase transformer is positioned. The high-impedance combined-type transformer can be in high-impedance operation and in split-type transportation, and has high performance-price ratio.

The invention discloses a combined nursing device for thoracic surgery, specifically relates to the technical field of nursing beds for thoracic surgery, comprising a fixed bed frame, a support frame is arranged at the bottom of the fixed bed frame, a bed baffle is arranged at one end of the fixed bed frame, and The other end of the fixed bed frame is provided with a movable bed machine; the movable bed mechanism includes a movable bed frame, the movable bed frame is arranged on the top of the fixed bed frame, a mattress is arranged on the top of the movable bed frame, and the movable bed frame One end of the bed frame is provided with a first movable bed cabinet, and one side of the first movable bed cabinet is provided with a slide rail. The present invention divides the hospital bed into two parts through the fixed bed frame and the movable bed frame, uses the movable bed frame to transfer the thoracic surgery patients, and places the nursing equipment needed by the patient in the nursing equipment storage tank or the nursing equipment storage bin, When transferring the patient, the nursing equipment needed by the patient can be transferred along with the patient, improving the nursing effect.

The invention discloses a core structure of a limit switch. The core structure comprises a bottom casing, a pedestal assembly and a movable assembly; the bottom of the bottom casing is provided with a positioning boss, the two sides of the positioning boss are provided with grooved guide rails respectively, and the surface of the positioning boss is a folding surface; the pedestal assembly is assembled in the bottom casing; the movable assembly is assembled in the pedestal assembly, and comprises a movable rod, an elastic assembly and a moving contact assembly, the elastic assembly comprises main springs, auxiliary springs and a telescopic rod, the auxiliary springs can drive the telescopic rod to be telescopic along the axial direction, the moving contact assembly comprises a moving contact pedestal, and the moving contact pedestal is provided with a through hole through which the telescopic rod can penetrate freely and countersinks for accommodating rolling bodies; and the rolling bodies can move along the grooved guide rails, and the telescopic rod can bear a force to penetrate the moving contact pedestal and make contact with an inclined plane of the positioning boss. The core structure can prevent the switch from a power-off or flickering phenomenon in the switching moment effectively, a sliding body reduce the frictional force generated during movement of the movable assembly, the positions and quantity of normally-open and normally-closed socket connectors can be changed more conveniently, and the switching manner and repetition precision are improved.

The invention discloses a three-dimensional anode electrode and a microbial fuel cell and a starting method thereof. The microbial fuel cell includes a pool body, a sewage pump, a catholyte pump and a catholyte tank. The cell body includes an anode cavity and a cathode cavity and a cation exchange membrane. A three-dimensional anode electrode including a three-dimensional layered base layer and several extension layers is arranged in the anode chamber, and the base layer is arranged close to the cation exchange membrane. Anode circuit lines are arranged between the extension layers. A catholyte circulation is formed between the catholyte tank and the cathode cavity. The cathode cavity is provided with a cathode electrode, and the cathode electrode is selected from carbon rods or carbon brushes or includes at least two metal meshes connected to each other through titanium sheets, and granular activated carbon is filled between the metal meshes. In the start-up process, anaerobic sludge is injected into the anode cavity to realize the inoculation, cultivation, enrichment and domestication of microorganisms in the base layer and extension layer, and realize electricity production. The three-dimensional anode electrode structure of the invention is beneficial to electron collection and transmission, and has the advantages of good electricity production effect, simple structure, convenient manufacture and the like.