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8results about How to "Reduce tightness" patented technology
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Guitar shell
The utility model belongs to the technical field of guitars, and discloses a guitar shell, which comprises a guitar body and a guitar neck, the guitar body is connected with the guitar neck through a fixing bolt, a positioning assembly is arranged on the guitar neck at a position corresponding to the fixing bolt, and the positioning assembly comprises a fixing shell fixed on the guitar neck. Two springs which are symmetrically arranged up and down are arranged in the fixed shell, movable plates are connected to the ends, away from each other, of the springs, movable rods are connected to the sides, away from the springs, of the movable plates, the ends of the movable rods penetrate through the fixed shell and are connected with sawtooth plates, and the positioning assemblies can effectively limit displacement and rotation of the fixed bolts; according to the guitar, the connecting stability of the guitar body and the guitar neck is greatly enhanced, the loosening frequency of the fixing bolt is reduced, the times of checking and fastening the bolt by a player are reduced, the maintenance time and energy are saved, meanwhile, guitar performance reduction caused by loosening of the bolt is avoided, the service life of the guitar is prolonged, and the maintenance cost is reduced.
Owner:JIEYANG YUNQI MUSICAL INSTRUMENTS CO LTD
A vibration-proof nut
The utility model provides a kind of anti-vibration nut, increase O-ring in nut inside, increase the friction between nut and bolt, prevent nut from loosening because of vibration.The anti-vibration nut is used for the related operation (pipeline flange connection, fixed support, bolt fastening) needing to use bolt connection, fixed, using the nut and bolt connection, can prevent nut loosening due to vibration at connecting place, avoid the security risk due to the fastening of fastener The fastening of fastener reduces, and simultaneously can reduce the use of spring pad, reduce construction cost, improve construction efficiency.
Owner:NORTH HUAJIN CHEM IND CO LTD
Fireproof bridge convenient to disassemble and assemble
Owner:HEBEI HUIZHENG CABLE BRIDGE CO LTD
An integrated washer nut
This utility model relates to the field of nut technology and discloses an integrated washer nut, comprising a main body with a threaded groove inside. A protective component is installed on the top of the main body, and a connecting block is fixedly connected to the bottom of the main body. A washer is fixedly connected to the bottom of the connecting block, and a fastening component is provided inside the main body. The protective component includes two mounting blocks, which are slidably connected to the top of the main body. A protective block is fixedly connected to the top of the two mounting blocks. Two sliding grooves are formed on the top of the main body, and a locking groove is formed on one side of each sliding groove. A locking block is fixedly connected to one side of each mounting block. In this utility model, the cooperation structure of the sliding mounting blocks and locking blocks allows the protective block to be quickly installed and removed, forming a top sealing barrier that effectively prevents external dust and liquid from entering the threaded groove. Combined with a galvanized protective layer, the corrosion resistance of the nut is improved, and the service life of the nut is extended.
Owner:YINGTAN FUZHONG HARDWARE PROD (GRP) CO LTD
Metal-clad laminate and wiring board
PendingCN122662993AExcellent dielectric propertiesExcellent thermal expansion rateMetallic foilPolyester
One aspect of the present application relates to a metal-clad laminate comprising: a first insulating layer containing a cured product of a first resin composition; and a fibrous base material containing liquid crystalline aromatic polyester fibers; a second insulating layer containing a cured product of a second resin composition, and being laminated on one side surface or both side surfaces of the first insulating layer; and a metal foil being laminated on the second insulating layer, wherein the thickness of the second insulating layer is 1 to 60 µm, and the second resin composition contains at least one of a polyphenylene ether compound and a hydrocarbon compound.
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
Adjustable flushing frame for orthopedic trauma surgery
ActiveCN224180026Uprecise height adjustmentSolve the problem of being unable to liftEnemata/irrigatorsNursing accommodationTrauma surgerySurgical operation
The utility model relates to the technical field of medical instruments, in particular to an adjustable flushing frame for orthopedic trauma surgery, which comprises a base, a lifting rod is mounted at the top of the base, an adjusting plate is mounted at the top of the lifting rod, and a mounting plate is mounted at the front end of the adjusting plate. Two symmetrically-distributed fixing frames are fixedly connected to the front end of the mounting plate, an adjusting assembly is mounted between the lifting rod and the adjusting plate, and a moving assembly is mounted between the adjusting plate and the mounting plate; and the lifting rod comprises an outer cylinder, a first lead screw, a sleeve, a limiting block and a limiting groove, the outer cylinder is fixedly connected to the top of the base, the first lead screw is movably installed in the outer cylinder, the sleeve is movably installed in the outer cylinder, and the sleeve is arranged on the outer wall of the first lead screw in a threaded and sleeving mode. According to the utility model, the problems of inconvenience in surgical operation, poor flushing effect and increased wound infection risk caused by incapability of lifting and angle adjustment of the conventional flushing frame are solved.
Owner:YICHANG CENT PEOPLES HOSPITAL
An assembled guardrail for construction
ActiveCN224648290UReduce disassemblyreduce tightness
The utility model discloses a building construction is with assembled guardrail, including base and vertical setting support column on base, support column is along height direction and is provided with guide groove in it and guide groove penetrates both side walls, the guide groove is provided with the adjusting stand that slides up and down in, still include the guardrail subassembly of detachable type connection with adjusting stand side wall, the guardrail subassembly includes guardrail stand and sets up the horizontal guardrail at the top and bottom of guardrail stand, be provided with sliding slot on the horizontal guardrail and be provided with the adjusting guardrail that sets up with the cross section of sliding slot matching in sliding slot, two groups horizontal guardrail and adjusting guardrail are provided with multiple groups of jack on length direction. The utility model relates to the technical field of building construction equipment, and specifically provides a building construction is with assembled guardrail.
Owner:ANPING COUNTY MAOPENG METAL PRODUCTS CO LTD
High pressure water jet type descaling mill
ActiveCN224641952UEasy to washAchieve phosphorus removal effect
This utility model discloses a high-pressure water jet type descaling machine for steel rolling mills, specifically relating to the field of descaling machine technology. It includes a flushing component for descaling steel billets, housed inside a casing. The flushing component comprises two threaded rods movably mounted inside the casing via bearings. Each threaded rod is externally threaded to a movable plate, and water tanks are mounted on opposite sides of the two movable plates. High-pressure nozzles are fixedly connected to the opposite front ends of the two water tanks. This utility model uses a first motor to drive two first pulleys, which are driven by a first belt, to rotate. The two first pulleys, through corresponding connecting shafts, drive the threaded rods to rotate. The threaded rods then drive the movable plates to laterally adjust the position of the water tanks, facilitating comprehensive flushing of the steel billets by the high-pressure nozzles. The reciprocating motion continuously changes the impact angle of the water flow, allowing for flushing of the four corners and easier removal of iron oxide scale, thereby achieving the descaling effect on the steel billets.
Owner:YINGKOU HUAHAI EQUIP