30results about How to "Reduce the difficulty of opening" patented technology

The invention discloses a vehicle door opening device, and belongs to the field of vehicles. The vehicle door opening device comprises a first rod part, a second rod part, a third rod part, a vehicle body fixed base, a gear and a vehicle door rail; the first rod part, the second rod part and the third rod part are movably connected; any rod part can rotate around a connecting point of the three rod parts; the vehicle body fixed base is provided with a mounting groove; the first rod part and the second rod part are both movably connected with the vehicle body fixed base; the first rod part can rotate around a connecting point between the first rod part and the vehicle body fixed base; the second rod part can slide in the mounting groove; the third rod part is fixedly connected with the vehicle door rail; the gear and the vehicle door are both arranged on the vehicle door rail; and the gear is used for driving the vehicle door to slide on the vehicle door rail, so that the vehicle door slides to open or close. The vehicle door opening device solves the problems of lower safety and higher difficulty in a traditional vehicle door opening mode, and achieves the effects of improving the vehicle door opening safety and reducing the opening difficulty. The vehicle door opening device is used for opening the vehicle door.

The invention discloses an optical fiber junction box capable of controlling incoming lines, comprising a bottom plate. One end of the bottom plate is fixedly connected with a fixing cover. Pressing blocks are arranged on the outer side of the fixing cover. Springs are connected to the inner side of the pressing blocks. The ends of the springs are connected with fixing blocks. Connecting rods areconnected to the outer sides of the springs. Hook blocks are connected to the tail ends of the connecting rods. According to the optical fiber junction box capable of controlling incoming lines, the sliding connection structure of the optical fiber junction box can be achieved by arranging sliding grooves and sliding blocks, so that the optical fiber junction box is more convenient to use comparedwith conventional optical fiber junction boxes, and maintenance personnel do not need to carry a large number of tools to open and dismount when checking and maintaining, thus the opening difficultyof maintenance personnel in maintenance is reduced, the opening and closing time is reduced; the connecting structure of a fixing cover and a sliding cover is achieved through arranging the hook blocks and the blocking blocks; and the purpose of opening and closing of the fixing cover and the sliding cover is achieved by pressing the pressing blocks, so that the opening structure of the optical fiber junction box is simple, the sealing effect is good, the dismounting is convenient, and the junction box is suitable for household use.

The invention relates to the technical field of pipe hydroforming, and provides a hollow layer forming process, including S1 blanking; preparing a plate of predetermined size and specification for roll forming; opening n through hole groups; S2 preparing a tube blank; The sheet is rolled up to form the first layer to the n+1th layer of tubes in sequence; S3 uses internal high pressure to form the hollow layer. Thereby, the present invention pre-opens a number of through holes on the plate and then rolls it into a tube blank with multi-layer tubes; replaces the pre-expansion process of the prior art, and eliminates the development and production of pre-expansion molds , saving mold development and process costs. It also eliminates the hole filling process, which greatly reduces the difficulty of opening water injection holes; at the same time, multiple groups of through holes can be opened in advance, and multiple water injection holes can be formed after rolling, realizing the forming of multiple hollow layers and filling the existing holes. There are gaps in technology. The invention provides a multi-hollow layer thermal barrier tube, which has multiple hollow layers.

The invention discloses a safety box avoiding infant accidental touching. The safety box comprises a box body and a cover body which is provided with an opening in one end. Two sides of the box body are provided with through holes I. The lateral side of the cover body is provided with a through hole II. A connecting piece is arranged between the box body and the cover body, above the cover body and along the edge of the upper portion of the cover body and provided with a groove, a protrusion I and an adjusting device, wherein the groove is matched with the thickness of the cover body; the protrusion I is matched with the inner side of the box body; the adjusting device is used for adjusting the opening or closing of the cover body and comprises buttons and a protrusion II, the buttons arematched with the through hole I, the protrusion II is integrally formed, arranged above the buttons and matched with the through hole II, and the protrusion II, the buttons and the connecting piece are movably connected. When the buttons at the two ends of the box body are pressed, the protrusion II caves in along with the buttons, and the cover body slides to open the safety box, so that the connecting structure is stable, injuries, generated when an infant accidentally touches dangerous articles, to the infant are effectively avoided, the practicability is strong, and the safety box can be widely applied to the technical field of boxes.

The invention provides a coal powder-prevention tubular discharging and extracting pump for pumping liquid in coal bed gas wells, which especially can prevent coal powder from burying pump, blocking the pump and extending the period of pump inspection. The coal powder-prevention tubular discharging and extracting pump comprises a pump cylinder assembly, a plunger assembly, a liquid inlet valve assembly and a fixing device. A hemispherical valve ball enlarges the flow area of a pump valve, improves the speed for well liquid to enter the pump, is beneficial to the discharging of well liquid outof the pump together with the coal powder to prevent the coal powder from blocking the pump; a resetting spring is matched with a positioning pin to reinforce the resetting capacity of the valve ballso that the tubular discharging and extracting pump reduces loss and realizes the purpose of smoothly opening the pump valve under low sinking degree; a coal powder-prevention slot can temporarily contain the coal powder to reduce the abrasion of the coal powder for plungers and pump cylinders; the bottom of the coal powder-prevention slot is provided with jetting holes so that the coal powder ina valve cover is washed by utilizing the well liquid stored in the slot, thereby the discharging and extracting pump realizes the function of self washing to prevent the blockage of the liquid inlet valve from blocking the pump; and a stirrer drives vanes to rotate along with the reciprocating motion of a plunger of the liquid inlet valve to constantly stir the well liquid and deposited coal powder in a sieve tube, thereby preventing coal powder particles from rapidly settling in the sieve tube to result in that the pump is buried by the coal powder.

The invention discloses a method for etching a self-aligned contact hole, which comprises the steps of: providing a silicon substrate formed with a plurality of gate structures; depositing silicon nitride side walls; A layer of phosphosilicate glass; the first layer of phosphosilicate glass is etched, and the etched area is defined by the minimum distance between adjacent flower-shaped structures; the etched pattern of the first layer of phosphosilicate glass is used as a mask pair The silicon nitride sidewall is etched; the first layer of phosphosilicate glass is completely removed and the L-shaped gate sidewall is formed; the self-aligned source and drain regions are formed; the hard mask layer and nitride at the window of the gate contact area All silicon sidewalls are removed; a second layer of phosphosilicate glass is deposited and planarized; an undoped third layer of silicon dioxide is formed; a photolithographic process is used to define a self-aligned contact hole pattern and etched to form a self-aligned contact hole. The invention can reduce the height of the gate structure, increase the distance between the gates, reduce the difficulty of PSG filling between the gate structures, enhance the etching ability of the self-aligned contact hole, and improve the etching quality of the self-aligned contact hole.

The invention discloses a vehicle door opening device, which belongs to the field of automobiles. Including: the first rod, the second rod, the third rod, the body fixing seat, the gear and the door track, the first rod, the second rod and the third rod are movably connected, and any rod can be wound around three The connection point of each rod rotates; the body mount is provided with a mounting groove, the first rod and the second rod are both movably connected with the body mount, and the first rod can go around the connection point between the first rod and the body mount Rotate, the second rod can slide in the installation groove; the third rod is fixedly connected with the door track, the gear and the door are set on the door track, the gear is used to drive the door to slide on the door track, so that the door slides to open or close . The invention solves the problems of low security and high difficulty in the existing way of opening the car door, and achieves the effects of improving the safety of opening the car door and reducing the difficulty of opening. The invention is used for opening the car door.