418results about How to "Orientation is accurate" patented technology

A novel drilling method for a shaft drilling machine mainly comprises a derrick and an opening-sealing flat wagon which are arranged at a well opening, and further comprises a drill rod, a flexible connector, a stable pressing device, a torque amplification driving device, a cutter head, a slag discharging system, a mud treatment station, an electric appliance cabinet, a hydraulic pressure station and a power pipeline. A main drive is arranged on the derrick, the lower portion of the main drive is connected with the drill rod, the flexible connector is arranged on the drill rod, the lower end of the drill rod is connected with the torque amplification driving device, the lower end of the torque amplification driving device is connected with the cutter head, the stable pressing device is arranged outside the torque amplification driving device; muck dug by the cutter head in a well is delivered to the mud treatment station on the ground through the slag discharging system. According to the novel drilling method for the shaft drilling machine, stability of the whole machine is increased, pressing force of equipment is improved, drilling torque is increased, construction in soft soil layers is available and construction in rock stratums of high hardness is also available, guide is more accurate, so that shaft construction efficiency can be improved, shaft construction cycle is shortened, and finished well quality is improved.

The invention relates to a device for hingedly connecting a wiper blade (12) to a wiper arm (10) of a wiper, comprising a connecting element (20) fixedly connected to the wiper arm (10) and a The support part (14) of the water sheet (12) is fixedly connected to the connecting part (16), which has at least one side pointing towards the connecting element (20) on each longitudinal side starting from the base part (22) Walls (26, 28, 44), these side walls support the bearing bolts (30), on which the plastic adapter (18) is rotatably supported, wherein the adapter (18) passes through The positioning elements (46, 56, 58) as well as the retaining elements (68, 60, 62) are fixed in the contour of the connecting element (20) open towards the connecting part (16) and embedded with a part (44, 52) in the side wall ( 26, 28) in the space between. It is proposed that a part (38, 40) of the side wall of the adapter (18) covers the side wall (26, 28) of the connecting part (16) from the outside, while another part (44) of the side wall is biased inwardly The side walls (26, 28) of the connection part (16) are covered from the inside.

The invention discloses a method and device for displaying associated dimension points on an electric map interface. The method comprises the following steps: determining the types of facilities of POI (Point of Interest) data identified by dimension points selected by a user at present; in the adjustable area range of the electric map interface, obtaining a POI association composed of the POI data of which the types are same with the types of facilities corresponding to the dimension points selected by the user; and on the electric map interface, distinctly displaying the dimension point corresponding to each POI data in the POI association. According to the method and the device, the user can quickly and accurately directionally look for a target POI through the dimension points distinctly displayed on an electric map, the user is convenient to search the POI, the search efficiency is increased, and the user experience is improved.

The invention discloses a demolding mechanism of a plastic injection mold with a convex ring cylindrical product at the outer side. The demolding mechanism is characterized by comprising an upper compound plate and a lower compound plate, wherein a waste pull rod is arranged in the upper compound plate; a waste push plate is arranged below the upper compound; a core is arranged below the waste push plate; a waste is arranged between the core and the waste push plate; an elastic block groove is formed in the core; a fixed-distance screw is arranged in the elastic block groove; an elastic block is connected below the fixed-distance screw; an ejection spring is arranged outside the fixed-distance screw; spring grooves are formed in the upper compound, the waste push plate and the core; springs are arranged in the spring grooves; a waste push plate fixed-distance push rod and a core fixed-distance pull rod are arranged on the waste push plate; mold feet are arranged on the lower compound; an upper thimble plate and a lower thimble plate are arranged between the mold feet; inclined ejection block ejection rods are mounted on the upper thimble plate and the lower thimble plate; a lever is arranged between the upper thimble plate and the lower thimble plate; a secondary upper ejection plate and a secondary lower ejection plate are arranged on the lower thimble plate; secondary ejection rods are mounted in the secondary upper ejection plate and the secondary lower ejection plate; a plastic piece push plate is arranged in a support plate; the secondary ejection rods are connected with the plastic piece push plate; a cavity is formed in the support plate; a T-shaped inclined groove is formed in the inner side of the cavity, and is connected with an inclined ejection block; and a groove is formed in the inner wall of the inclined ejection block, and is fitted with a convex ring on the outer wall of a plastic piece.