9results about How to "Easy to install apps" patented technology

The utility model discloses an improve the side emitting LED support of air tightness, including hardware support and plastic seat, the front of plastic seat is provided with lateral recessed cavity, and the inner end of lateral recessed cavity has insulating partition rib, to divide the inner end of lateral recessed cavity into first embedding space, second embedding space, and, the inner peripheral side extension of lateral recessed cavity has plastic boss, the back of plastic seat extends bottom wall and top wall, and the top of bottom wall forms first scooping chamber to the downward scooping, and first positioning wall located first scooping chamber both sides, hardware support includes first hardware sheet, second hardware sheet, and it includes embedding part, pad and soldering leg of integral connection, and soldering leg is positioned on first positioning wall after bending, and pad is exposed respectively in first embedding space, second embedding space, and its front part surface is positioned by corresponding plastic boss. It improves the plastic seat shrinkage deformation condition, and, improves the wrapping positioning of pad to plastic seat, so, the product air tightness is effectively improved in the combination of double advantage.

A single-phase four-level rectifying power supply based on a pseudo totem pole structure comprises eight full-control power switch tubes S1 to S8, diodes D1 to D6, inductors L1 and L2 and capacitors C1 to C3. One end of the alternating current power supply ug is connected with the anode of the diode D5 and the cathode of the diode D6 at an end point n; the other end of the AC power supply ug is connected with one end of an inductor L1 and one end of an inductor L2; the other end of the inductor L1 is respectively connected with the anode of the diode D1 and the drain electrode of the switch tube S1 at an end point a; the other end of the inductor L2 is connected with the cathode of the diode D2 and the source electrode of the switching tube S4 at the end point b. The cathode of the diode D1 is respectively connected with the drain electrode of the switching tube S3, the cathode of the diode D5, the anode of the capacitor C1 and the anode of the load RL at an end point p; the source electrode of the switching tube S2 is connected with the anode of the diode D2, the anode of the diode D6, the cathode of the capacitor C3 and the cathode of the load RL at an end point m. According to the rectifier, the pseudo totem pole rectification technology and the four-level topology technology are fused, so that the stress of a switch tube can be effectively reduced, the overall efficiency of a system is improved, and a bridge arm direct connection phenomenon does not exist.

This invention relates to the field of bridge engineering technology, specifically to a wind-resistant device and construction method for the main girder of a cable-stayed-suspension bridge during construction. It includes: a first connecting part, a second connecting part, a crossbeam, and anchor cables. The first connecting part is fixedly connected to the main girder in the suspension zone, with at least two sets of the first connecting parts connected to both ends of the main girder in the suspension zone, distributed on both sides of the main girder in the suspension zone. The second connecting part is fixedly connected to the main girder in the cable-stayed zone, with at least two sets of the second connecting parts connected to one end of the main girder in the cable-stayed zone near the main girder in the suspension zone, distributed on both sides of the main girder in the cable-stayed zone. The crossbeam is connected to two main cables in the overlapping zone. One end of the anchor cable is connected to the first connecting part, passes through the crossbeam in the middle, and the other end is connected to the second connecting part. This invention can improve the wind resistance performance of the main girder in the suspension zone, and is highly targeted, has good wind control effect, and is convenient to install and apply.

The invention relates to the technical field of bridge engineering, in particular to a main beam wind-resistant device for a cable-stayed-suspension cable cooperative system bridge in the construction period and a construction method. Comprising first connecting parts, second connecting parts, cross beams and anchor cables, the first connecting parts are fixedly connected to a suspension area main beam, the two ends of the suspension area main beam are at least connected with two sets of first connecting parts respectively, and the first connecting parts are distributed on the two sides of the suspension area main beam; the second connecting parts are fixedly connected to the cable-stayed area main beam, the end, close to the suspension area main beam, of the cable-stayed area main beam is at least connected with two sets of the second connecting parts, and the second connecting parts are distributed on the two sides of the cable-stayed area main beam; the cross beam is connected to the two main cables in the overlapping area; one end of the anchor cable is connected with the first connecting part, the middle of the anchor cable penetrates through the cross beam, and the other end of the anchor cable is connected with the second connecting part. The wind resistance of the main beam in the suspension area can be improved, pertinence is high, the wind resistance control effect is good, and installation and application are convenient.

The application discloses a small-diameter steel wire strand manufacturing device and method. The device comprises a wire releasing device for releasing steel wires, the wire releasing device having a fixed damping to make the released steel wires have a certain initial tension; a pair of steering devices oppositely arranged, the steel wires being reciprocally wound through the pair of steering devices; a traction device having a fixed load and being connected to and pulling the outer ends of the steel wires on the wire releasing device, the traction device pulling the steel wires to be reciprocally wound along the pair of steering devices at a rated tension until a required number of steel wires for a strand is formed; and a shaping device for shaping and compacting the multiple steel wires after winding to make the steel wires form a required shape and compacting force of the strand. The application solves the problem of manufacturing small-diameter steel wire strands of a main cable of a suspension bridge, and has the advantages of convenient installation and application, convenient operation, controllable quality, and no need of large mechanical equipment.

The present invention discloses a non-contact sleep monitoring device and a monitoring method, comprising a monitoring body, a chip box and a mobile terminal. The monitoring body is provided with an upper cover, an upper shielding layer, a PVDF pressure sensor, a lower shielding layer and a lower cover in order from top to bottom. The chip box includes a signal amplification module, a filtering module, an analog-to-digital conversion module, a control module, a WiFi module, a storage module and a timing module. The present invention can be applied to measure breathing and heart rate. The material is sensitive and the data obtained is more accurate. At the same time, the cost is low, the material is saved, and the installation and application are simple. Non-contact measurement of physiological signals can be achieved without discomfort, and the normal sleep of a person will not be disturbed, making the monitoring data more reliable. The user can understand his own sleep time, sleep duration, sleep evaluation and other contents according to the sleep monitoring situation and analysis report. At the same time, the sleep situation of the user can be adjusted according to the historical data to make the analysis benchmark more suitable for the sleep situation of the user.

The application discloses a continuous feeding segmented die-casting equipment, which comprises a mold closing assembly and a die-casting assembly. The mold closing assembly comprises a machine table, a mold closing driving module, a mold closing seat, a movable seat and a fixed seat. The die-casting assembly comprises an extrusion driving mechanism, a screw driving mechanism, a pressure injection driving mechanism, a heater, a first barrel, a flow distribution module, a second barrel, a third barrel and a fourth barrel. The fourth barrel is connected to one side of the fixed seat away from the movable seat. The first barrel, the second barrel and the fourth barrel are each provided with a heater outside. The first barrel is provided with a feeding port. An extrusion push rod is slidably connected in the first barrel and connected to the extrusion driving mechanism. A screw stirring paddle is rotatably connected in the second barrel and connected to the screw driving mechanism. A pressure injection push rod is slidably connected in the fourth barrel and connected to the pressure injection driving mechanism. The application can be carried out in a closed and continuous space, can effectively improve the die-casting quality, can improve the production efficiency and has high safety performance.

The utility model discloses a transformer subassembly and power supply with the transformer subassembly, including framework, magnetic core, first winding, second winding, third winding, first PCB board and second PCB board, first PCB board sets up in the bottom of framework, and second PCB board sets up in the side of framework, the first winding's head, tail end is electrically connected on first PCB board respectively, and second winding and third winding pass the inner ring side of first winding along the axial direction, be provided with two groups of synchronous rectification circuit, two pins on second PCB board, one end of second winding is inserted in second PCB board to be connected in a pin through a group of synchronous rectification circuit, one end of third winding is inserted in second PCB board to be connected in another pin through another group of synchronous rectification circuit, and another end of second winding and third winding is downward through first PCB board through an extension support leg, and thus, effectively reduce the welding impedance, improve overcurrent, improve the efficiency, and modular component setting, easy to install application.

The invention discloses a method for manufacturing a server power transformer, which relates to the technology in the field of transformers, and comprises the following steps: 1. Installing a copper sheet frame module: the copper sheet frame module comprises more than one copper sheet with tinned surface and a connection positioning sheet, and the copper sheet has a pre-positioning foot and an external pin; inserting the pre-positioning foot into the corresponding positioning welding hole and fixing it with soldering; 2. Installing a flat coil module: the flat coil module comprises more than two flat coils, firstly coating the coil body of each flat coil with glue and curing it, and then gathering the wire ends into corresponding common terminals; 3. Staggering the flat coil modules into the copper sheet frame module: inserting the flat coil into the gap between adjacent copper sheets; 4. Installing the magnetic core; 5. Installing the magnetic core; 6. Fixing it with dripping insulating glue. It has a simple structure, a simple manufacturing method, and is easy to control the assembly quality, and is suitable for manual assembly. For transformers for small batches, the manual assembly method saves costs and does not rely on automatic machines.