61results about How to "Reduced Scratch Damage" patented technology

The invention provides a dihedral corner reflector array optical element and a method for fabricating the same and a display device using the same. For a method fabricating a dihedral corner reflector array optical element, a molding die having a reversal shape of the prism bodies is used. Each prism body has a frustum shape having an end plane whose area is smaller than that of the base plane side of the substrate. Each prism body is composed of a rectangular parallelepiped portion including the orthogonal plane sides to be a dihedral corner reflector and a taper portion integrated therewith having sides being non-parallel to the orthogonal plane sides. The method includes clamping the molding die to define a cavity therein; forming the optical element made from molten resin in the cavity; and parting the optical element from the molding die. The molding dies are relatively moved in a parting direction that the molding die leaves the orthogonal plane sides before anything else to part the optical element.

The invention belongs to the technical field of roof tents and relates to a manual and electric dual-control folding roof tent. The manual and electric dual-control folding roof tent comprises ejector rods, a bed frame and tarpaulin, wherein the ejector rods comprise a front ejector rod, a middle ejector rod and a rear ejector rod; one end of each of two electric ejector rods is hinged to the middle-lower part of the corresponding side wall of the middle ejector rod, the other end of each of two electric ejector rods is hinged to the corresponding side at the other end of the bed frame, actions of the electric ejector rods are controlled by a remote control and a button control panel arranged on the side surface of the bed frame, the middle ejector rod is driven by the electric ejector rods to rotate to drive the tarpaulin to stretch and retract, adapters are fixed at the middle-lower part of the middle ejector rod, pin holes are formed in one end of each of the adapters and the electric ejector rod, and hinging of the electric ejector rods with the middle ejector rod or hinging removal of the electric ejector rods from the middle ejector rod is realized by installing bolts or screws to the pin holes or uninstalling the bolts or the screws from the pin holes in the adapters and the electric ejector rods. The manual and electric dual-control folding roof tent has the advantage that lifting and dropping of the ejector rods can be controlled electrically and manually, and the tent is applicable to vehicles provided with horizontal roof rods or longitudinal roof rods.

The invention discloses a single-seat vacuum self-standing type adjusting valve. The single-seat vacuum self-standing type adjusting valve comprises an adjusting valve main body, a connection mechanism in the middle of the adjusting valve main body and a fixing mechanism at the bottom end of the adjusting valve main body, wherein the connection mechanism comprises a first fixed ring and a second fixed ring; a valve element is arranged at the bottom end of the adjusting valve main body; the first fixed ring is arranged at the top end of the valve element; an adjusting block is arranged in the middle of the adjusting valve main body; the second fixed ring is arranged at the bottom end of the adjusting block; fixed columns are arranged at two sides of the top end of the first fixed ring; thefirst fixed ring is internally provided with an inner thread; the fixed columns and a rotary groove are arranged, so that the cumbersomeness and complexity in a connection and fixing process of the adjusting valve are effectively reduced; the fixed columns only need to be aligned to the rotary groove to be connected and fixed, so that the time is saved and the utilization of special tools is reduced; in a mounting process, scratches and damages to the adjusting valve in a mounting process are reduced, the service life of the adjusting valve is prolonged and the loss of devices is reduced.

The invention discloses a chemical mechanical polishing pad and a chemical mechanical polishing method, belonging to the field of chemical mechanical polishing. The polishing pad at least comprises a nano-fiber layer which is in a non-woven fabric structure, the thickness of the fiber layer is 0.1mum-3cm, the average diameter of a nano-fiber is 1nm-1mum, the length of the nano-fiber is more than 1cm, and the axial direction of the nano-fiber is in parallel to a working surface of the polishing pad. The chemical mechanical polishing method comprises the following steps: a polishing solution is applied on the working surface of the polishing pad or on the surface of a polished material; and the working surface of the polishing pad is in contact with the surface of the polished material, and the polishing pad can move relative to the polished material, so that the chemical mechanical polishing is carried out on the polished material under lower pressure or super-low pressure. With the adoption of the polishing pad, the defects such as scratch damage and stress peeling can be reduced so as to obtain the surface with higher quality; meanwhile, higher material removal speed can be obtained under lower pressure.

The invention discloses a lifting and turning device for automobile maintenance, and mainly relates to the field of automobile maintenance. Including the maintenance pile foundation, there are multiple maintenance pits on the maintenance pile foundation, the top of the maintenance pit is rotatably connected with a turning plate, the inside of the maintenance pit is rotatably connected with a power telescopic rod, and the movable end of the power telescopic rod is rotatably connected with the bottom of the turning plate , There are tire grooves symmetrically on the flip plate, and sliding holes are symmetrically arranged on both sides of the tire grooves. The vertical sliding connection in the sliding holes is connected with a lifting plate. The top of the lifting plate is equipped with a clamping telescopic rod, which The clamping plate is fixed at the movable end of the tire groove, and the clamping plate is located in the vertical range of the tire groove. The inner lifting plate is symmetrically rotated and connected with hook rods. There are multiple limit blocks slidingly connected on the maintenance pile foundation. There is a limit hole on one side. The beneficial effect of the present invention is that it can improve the fixing effect on the car when turning over, make turning over and resetting more convenient, reduce the damage to the car, and ensure the maintenance efficiency.

The invention relates to the field of insulating paper production equipment, in particular to an insulating paper blanking equipment, which includes a frame, a plurality of floating plate blanking mechanisms arranged on the upper layer of the frame, and a conveying mechanism arranged on the lower layer of the frame. The feeding mechanism unloads the insulating paper, and the conveying mechanism collects and transfers the unloaded insulating paper. The floating plate unloading mechanism includes a floating plate with a plurality of air holes on the upper surface. The device continuously sprays gas upwards, and each air hole of the floating plate is provided with a downwardly recessed groove, and the air hole is located at the bottom of the corresponding groove. When the humidified insulating paper is placed on the floating board, not only the distance between the air holes and the insulating paper is opened, but also the groove can be used as a chamber for airflow buffering, reducing the pressure of the high-pressure airflow sprayed on the surface of the insulating paper, reducing the The probability of damage during cutting of insulating paper improves the reliability of cutting of insulating paper.

Embodiments of the present invention provide a test probe and a test device, which relate to the field of display technology and are used to ensure good contact between the test probe and the surface of the test sample, while reducing the damage of the test probe to the surface of the test sample and the damage of the test probe. wear and tear. The test probe includes: a housing, a piston, an elastic device and a sphere; the housing includes a test end and a fixed end, and the test end is provided with a test opening; the piston can slide between the test end and the fixed end along the inner wall of the housing, and the piston and the fixed end The fixed end of the housing forms a conductive colloid cavity, and the conductive colloid can overflow from the gap between the piston and the inner wall of the housing by squeezing the piston; the first end of the elastic device is fixed on the piston, and the second end of the elastic device extends toward the test end The sphere is arranged at the test opening, the sphere can rotate in the test opening and the size of the test opening is smaller than the diameter of the sphere; the sphere and the second end of the elastic device are separated by a preset distance. Embodiments of the present invention are used for the detection of test samples.