13results about How to "Improve close contact" patented technology

The utility model belongs to the technical field of seat cushions, and particularly relates to a seat cushion which comprises a seat plate and a backrest which can be folded relatively, a connecting groove is formed below the seat plate, the backrest comprises a backup plate and a connecting seat which are integrally arranged, the backup plate and the connecting seat are arranged in an L shape, and the connecting seat extends towards the lower portion of the seat plate and is rotationally connected with the connecting groove. A locking device is arranged between the connecting seat and the seat plate, and the locking device is respectively connected with the connecting seat and the seat plate, so that the connecting seat and the seat plate are relatively fixed, the seat plate and the backrest are kept in an unfolded state, and the cushion is simple in structure and convenient to use.

The utility model provides a rape protective ploughing, sowing and chemical removing all-in-one machine which comprises a machine frame, and a seed box, a fertilizer box and a pesticide box are installed on the upper portion of the machine frame. The grass gathering auger comprises a first driving shaft installed on the lower portion of the front end of the rack and two sets of blades, the two sets of blades are coaxially installed at the two ends of the first driving shaft, and each set of blades comprises two spiral blades arranged at intervals; the second driving shaft is installed on the lower portion of the machine frame and arranged behind the first driving shaft, each end of the second driving shaft is provided with two sets of rotary tillage blades, and each set of rotary tillage blades is arranged right behind one spiral blade; the fixed shaft is fixedly arranged at the lower part of the rack and is arranged behind the second driving shaft, a plurality of press wheels are rotatably arranged on the fixed shaft in a sleeving manner, and the press wheels are arranged right behind the group of rotary tillage blades; the plurality of seeders are mounted at the rear end of the rack and connected to the seed box, and two seeders are arranged behind each press wheel; the plurality of nozzles are connected to the pesticide box and are respectively mounted at the front end and the rear end of the rack; and the fertilizer conveying pipe is connected to the fertilizer box. The oilseed rape direct seeding machine solves the problems that the existing oilseed rape direct seeding machine is low in seedbed preparation quality and difficult in weed control.

The utility model provides a kind of electric plug structure of compressor, for and the pin of compressor are inserted, including electric plug body and three connecting columns;Three mounting through holes are opened on the electric plug body, three the mounting through hole is distributed along the circumferential direction, and the mounting through hole is along axial direction and penetrates the electric plug body;Three The connecting column is respectively installed in three the mounting through hole;The connecting column includes the connecting head and connecting rod part of being connected, the connecting head is used to be inserted with the wiring end of compressor, and the connecting rod part is used to be connected with outside;The cross section of the connecting head is scallop shape;The utility model can increase the contact area of the pin of compressor, reduce the phenomenon of sparking caused by bad contact, so that product quality is more stable, can also improve test efficiency simultaneously.

The utility model relates to the technical field of batteries, and discloses a cylindrical lithium ion battery collector plate which comprises a main body mechanism, the main body mechanism comprises a battery collector plate body, and a collector plate shell welding area is fixedly arranged in the middle of the upper end of the battery collector plate body. A collector plate limiting ring area is fixedly arranged at the outer end of the upper end of the battery collector plate body, the collector plate limiting ring area is located on the outer side of the collector plate shell welding area, and a collector plate tab welding area is fixedly arranged at the upper end of the battery collector plate body. According to the cylindrical lithium ion battery collector plate, the collector plate shell welding area is in a boss design, close contact with the shell is facilitated, contact internal resistance and gaps are reduced, the collector plate shell welding area is in a boss embossing design, close contact with the shell is further facilitated, the contact internal resistance and gaps are reduced, and the welding stability is improved; and the liquid guide groove hole area of the collector plate is hollowed out, so that the electrolyte injection efficiency is improved, and the electrolyte infiltration speed is increased.

The present application relates to a kind of electrically conductive rod assemblies and through core support insulator.Electrically conductive rod assembly includes: electrically conductive rod;Two electrically conductive blocks are provided, and two electrically conductive blocks are respectively at the two ends of electrically conductive rod;Supporting disc is arranged in the side of electrically conductive block towards electrically conductive rod, supporting disc is equipped with supporting disc threaded hole and supporting disc perforation, supporting disc threaded hole is at the central position of supporting disc, and supporting disc perforation is at least two and is arranged with interval around supporting disc threaded hole;The side of electrically conductive block towards supporting disc is equipped with conical hole, and the size of the end of conical hole close to supporting disc is greater than the size of the end of conical hole away from supporting disc;The end of electrically conductive rod is equipped with conical section and threaded section, threaded section is connected with supporting disc threaded hole by screw thread, and conical section is inserted with conical hole;Fastening bolt is connected in electrically conductive block by screw thread through supporting disc perforation, to press electrically conductive rod on electrically conductive block by supporting disc, and then make conical section and conical hole closely contact.

The invention discloses a spider silk loaded sulfide hollow nanotube composite material, belonging to the field of materials, the composite material is a spider silk loaded CdS nanocomposite material with a nanotubular structure obtained by in-situ growing CdS on spider silk; or, a spider silk loaded CdS / NiS nanocomposite material with a nanotubular structure obtained by in-situ growing CdS on spider silk and then loading NiS. The invention is simple to operate, environmentally friendly, can obtain spider silk in-situ loaded CdS or CdS / NiS hollow nanotubes with controllable size, morphology and atomic ratio, improve the dispersibility of CdS or CdS / NiS nanomaterials; change the motion trajectory of photogenerated electron holes, effectively prevent the recombination of photogenerated electrons and holes, and improve the photoelectric efficiency.

The utility model discloses a double faced adhesive tape rolling pasting module for PCB processing, which comprises an X-axis lead screw module, a Z-axis lead screw module and a mounting seat, a vertically arranged Z-axis sliding rail is fixedly arranged on the side wall of one end, deviating from the Z-axis lead screw module, of the mounting seat, a first telescopic air cylinder is further fixedly arranged on the mounting seat above the Z-axis sliding rail, and a second telescopic air cylinder is further fixedly arranged on the mounting seat above the Z-axis sliding rail. An output shaft of the first telescopic air cylinder is connected with a rolling and pasting roller used for rolling and pasting and pressing the double-faced adhesive tape through a U-shaped support, and one side of the U-shaped support is arranged on the Z-axis sliding rail in an embedded mode and can move in the laying direction of the Z-axis sliding rail. According to the technical scheme, the first telescopic air cylinder is arranged, the height of the rolling and pasting rolling wheel is adjusted through the first telescopic air cylinder, movement of the rolling and pasting rolling wheel is guided through the Z-axis sliding rail, and rolling and pasting treatment is conducted on the surface to be machined through the rolling and pasting rolling wheel; the surfaces of the two sides of the machined workpiece are evenly pressed in a full-area mode, and the adhesion stability of the double-faced adhesive tape is effectively improved.

The utility model relates to the technical field of inductance coils, and provides a contact ring assembly used for an inductor, the contact ring assembly comprises a contact ring main body abutting against the inductance coil and a plurality of elastic conductive reeds wound on the contact ring main body, the inductance coil is arranged in a spiral shape, a conductive shaft is arranged above the inductance coil, and the elastic conductive reeds are wound on the conductive shaft. The contact ring main body is coaxially sleeved on the conductive shaft, and the elastic conductive reed abuts against the outer surface of the conductive shaft. The application has the beneficial effect of reducing the possibility of poor contact in the use process.

This utility model provides a tabletop lift-type laboratory fume hood, relating to the field of laboratory fume hoods. It includes: a cabinet body; an exhaust duct on the upper side of the cabinet body, with an exhaust fan connected to the outer end of the exhaust duct; a filter assembly connected to the outer end of the exhaust fan; a filter box containing filter elements and a partition inside the filter box; a dust collection hood on the inner side of the cabinet body, with a flexible hose connected to its rear side; the lower end of the flexible hose connecting to a rear exhaust port on the rear side of the operating table; an electric actuator connected to the lower end of the operating table; a tabletop on the lower side of the operating table; and a storage box on the lower side of the tabletop. This utility model facilitates height adjustment of the operating table inside the cabinet and enables effective filtration and suction close to the operating table.

The utility model relates to the technical field of connectors, in particular to a connector with 90-degree bent terminals, which comprises a plastic main body, one end of the plastic main body is provided with a lead part, and the other end of the plastic main body is provided with a first plugging part, a second plugging part and a third plugging part. The plurality of first wire harness terminals are vertically inserted into the first jacks and are connected with first cables; the plurality of second wire harness terminals are inserted into the second jacks in a 90-degree bending manner and are connected with second cables; and the plurality of third wire harness terminals are inserted into the third jacks in a 90-degree bending manner and are connected with third cables. According to the utility model, the mode of bending the terminals by 90 degrees is adopted, so that the leading-out direction of the cable is perpendicular to the plugging direction of each terminal, the cable can be plugged without bending the wire rod in use, the problems of terminal shaking and warping caused by bending the wire rod are effectively solved, each terminal can be ensured to be in better close contact with the female seat, and the reliability of a product is effectively improved.

A thermal transfer sheet includes a substrate and a transfer layer on the substrate. The transfer layer includes an adhesive layer. The adhesive layer forms one surface layer of the thermal transfer sheet, and the adhesive layer contains an allyl resin and a modified olefin polymer.

An antifogging agent composition which contains a copolymer (A), colloidal silica (B) and a solvent (C), wherein: (A) is a (meth)acrylate copolymer obtained from a monomer mixture which contains monomers (a-1) to (a-3); (C) contains water (C-1), a C1-4 monovalent alcohol-based solvent (C-2), a solvent (C-3) which has one or more functional groups per molecule which are selected from the group consisting of a ketone group, an ester group, two or more ether groups, a thioketone group and an amide group, and has a boiling point of 100-200°C, inclusive, and a glycol ether-based solvent (C-4) which is represented by general formula (5) (R10-O-R11-OH); and the combined total of (C-1) to (C-4) relative to 100 parts by mass of the combined total of (A) and (B), and the mass ratios of (C-3) and (C-4) relative thereto, are specific amounts. Said antifogging agent composition makes it possible to form an antifogging coating which exhibits excellent transparency, water resistance, initial adhesiveness, antifogging properties, and repeated antifogging properties, is unlikely to have water droplet marks left thereon, and also suppresses the formation of liquid droplets when applying the coating, is adhesive after pre-drying when applying a thin film of the coating, and suppresses the formation of cracks when applying a thick film thereof.

This invention discloses a method for preparing nanosheet-like AFN structured molecular sieves. An aluminum source is added to water, along with a phosphorus source, a template agent, and a silicon source. The mixture is then dried and milled to obtain a SAPO-14 molecular sieve dry gel precursor. Alternatively, an aluminum source is added to water and mixed thoroughly, followed by the addition of a phosphorus source and a template agent. This mixture is then dried and milled to obtain an AlPO-14 molecular sieve dry gel precursor. The SAPO-14 or AlPO-14 molecular sieve dry gel precursor is placed in a reactor with water added, isolating the dry gel precursor from the water, and maintained at 150-180°C for 4-8 hours to obtain a nanosheet-like AFN structured molecular sieve. In this invention, the precursor is in a dry gel form before crystallization in the reactor, with extremely low solvent content, which facilitates close contact between different components and results in a rapid nucleation rate. Therefore, the synthesis time is significantly shortened, although there are slight differences in crystallinity, which increases with time.