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15results about How to "No deflection" patented technology
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Pipe piece flexible joint rubber layer fixing device
InactiveCN222333794Uavoid puncturemaintain integrityUnderground chambersTunnel liningStructural engineeringMechanical engineering
The utility model relates to a rubber layer fixing device for a flexible joint of a duct piece, which is clamped and fixed at the intersection of duct piece reinforcing steel bars through a flexible joint lower connecting piece and a flexible joint upper connecting piece and comprises a rubber fixing piece, a connecting piece and a supporting rib, the rubber fixing piece is in a U shape, and a rubber layer is arranged on the inner wall of the rubber fixing piece. A threaded hole is formed in the outer side of the closed end of the rubber fixing piece. The duct piece has the advantages that the rubber layer is arranged on the inner side of the rubber fixing piece in a clamping mode, the stability of the rubber layer and the duct piece is guaranteed, the rubber layer is prevented from being separated from the duct piece, the end of the supporting rib or the end of the connecting piece is prevented from puncturing the rubber layer, the integrity of the rubber layer is maintained, and good waterproof performance is achieved; the rubber layer is connected with the duct piece reinforcing steel bar through the flexible connector lower connecting piece and the flexible connector upper connecting piece, the position of the rubber layer is fixed, and the rubber layer is prevented from moving in the duct piece pouring process.
Owner:CHINA RAILWAY TUNNEL GROUP CO LTD +4
Press fitting mechanism for installing automobile part oil seal
PendingCN121989038ANo deflectionThere will be no inconsistent edge trimming problems.Assembly machinesInterference fitMarine engineering
The invention relates to the technical field of oil seal press-fitting, in particular to a press-fitting mechanism for installing an oil seal of an automobile part, which comprises a workbench, a gearbox end cover on which the oil seal is to be installed is placed on the workbench, and the oil seal comprises an oil seal outer ring in threaded connection with the gearbox end cover and an oil seal inner ring in interference fit with the oil seal outer ring. A guide table is fixedly installed on the workbench, a butt joint module for containing the outer ring of the oil seal is installed in the guide table in a penetrating and sliding mode, a rotating module arranged on the inner ring of the oil seal in a sleeving mode is arranged at the top of the butt joint module, and a lifting module for driving the rotating module to vertically ascend and descend on the gearbox end cover is arranged at the top of the rotating module; the lifting module drives the rotating module to descend to press the oil seal inner ring into the oil seal outer ring on the guide table for interference fit, then the lifting module and the rotating module drive the oil seal inner ring and the oil seal outer ring to descend and rotate at the same time, and after the oil seal outer ring is screwed into a gearbox end cover for threaded connection, the lifting module drives the rotating module to be pulled out of the oil seal inner ring.
Owner:CHUZHOU YUEDA IND
Foaming device capable of discharging from bottom
PendingCN121989427Acontinuous regulationregulation stabilityStructural engineeringMechanical engineering
The invention discloses a lower discharging foaming device which comprises a movable base, a lower discharging foaming device, a lower discharging foaming device and an upper discharging foaming device, and a walking wheel set is arranged at the bottom of the movable base; the vertical bracket is fixedly mounted on the movable base; the variable-length flow guide mechanism comprises a flow guide channel which is arranged in an inclined mode and is telescopic in length, and the higher end of the flow guide channel is connected with the upper portion of the vertical support; the length adjusting driving mechanism is mounted on the vertical bracket, is in transmission connection with the movable part of the length-variable flow guide mechanism, and is used for driving the movable part to move so as to change the effective length of the flow guide channel; and the buffer mechanism is arranged in the groove of the flow guide groove channel and is used for providing damping buffer when the foaming profile slides down along the groove.
Owner:HANGZHOU DENGHUA PLASTIC MASCH CO LTD
Installation tool for pin shaft
PendingCN121972937AImprove pass rateImprove straightnessMetal working apparatusVehicle frameIndustrial engineering
The invention provides a mounting tool for a pin shaft, and relates to the technical field of assembly tools, the mounting tool for the pin shaft comprises a moving trolley, and the moving trolley comprises a base; the support frame is mounted on the base in a lifting manner; the jacking mechanism is installed on the supporting frame and used for jacking the pin shaft to be assembled; wherein the supporting frame has a working state and a moving state, in the working state, the supporting frame descends to make contact with an external supporting body, and in the moving state, the supporting frame ascends and is fixed to the moving trolley. According to the scheme, the pin shaft is stably pressed into the coaxial mounting hole of the frame through the mounting tool, the assembling efficiency and safety of the pin shaft are improved, and the labor intensity of operators is reduced. Meanwhile, when the installation tool is in press-fitting operation, the supporting frame is separated from the moving trolley, trundles of the moving trolley are not pressed, the situation that the trundles of the trolley are damaged by press-fitting counter force is avoided, and the service life of the installation tool is prolonged.
Owner:SANY HEAVY EQUIP CO LTD +1
Slanted insertion automatic film sorting and expanding machine for machining small film spacing products.
This utility model relates to the technical field of oblique insertion automatic sheet expansion machine, and in particular to a mold and pressing mechanism for small-pitch products in an oblique insertion automatic sheet expansion machine. The mold and pressing mechanism for small-pitch products in an oblique insertion automatic sheet expansion machine includes a mold assembly and a pressing mechanism. The mold assembly includes a mounting base plate and several sheet-shaped molds arranged side-by-side, with equal spacing between adjacent molds. Each sheet-shaped mold has an inserting tooth portion and a connecting portion. The inserting tooth portion consists of multiple parallel-arranged first inserts, and the connecting portion is a top notch cavity. The pressing mechanism includes a cantilever, a cylinder, and a pressure plate assembly. Below the pressure plate assembly is a mold reinforcing plate corresponding to the sheet-shaped molds. Its second inserts engage with the inserting tooth portion, and the snap teeth engage with the notch cavity. This structure effectively enhances mold rigidity through dual positioning, preventing deformation during small-pitch production, while also facilitating rapid mold changeover, making it suitable for precision expansion processing of small-pitch products.
Owner:CHANGZHOU BENJIE AUTOMATION TECHNOLOGY CO LTD
A sealing patching tool
A kind of sealing patching tool, it includes patching pipe assembly, expanding assembly and flow distributor, the patching pipe assembly includes patching pipe and sealing hanger, the patching pipe is matched with casing damage well casing specification Steel pipe, length is 8m-12m, both ends are all turned to sealing thread capable of being connected with sealing hanger;The sealing hanger is composed of hanger pipe, rubber sealing ring, metal sealing ring, the hanger pipe is a section of reducing steel pipe, the diameter of one end with sealing thread is same with the diameter of patching pipe, the diameter of one end with rubber sealing ring and metal sealing ring is installed is less than the diameter of patching pipe, two sets of sealing hangers are provided in each set of tool, are installed in the both ends of patching pipe by sealing thread respectively, the utility model sealing pressure is high, hanging is reliable, patching pipe does not produce flexure, patching section drift diameter is big, secondary extraction is easy.
Owner:YIMA PETROLEUM ENGINEERING TECHNOLOGY SERVICES CO LTD
A method for manufacturing a compressor piston
ActiveCN121535470Bachieve high efficiencyMeet high precision requirementsRotary piston pumpsRotary piston liquid enginesAir compressionCrankshaft
This invention provides a method for manufacturing a compressor piston. The compressor piston includes a hinge hole and a snap-fit position with a width smaller than the hinge hole. The hinge hole is used to connect a transmission component to achieve eccentric rotation of the compressor piston and crankshaft, thereby compressing air. The manufacturing method includes: preparing a piston body; milling the piston body to form an initial groove on the outer wall of the piston body; the initial groove penetrating both end faces of the piston body; using a broach to enlarge the end of the initial groove away from the outer wall to form the hinge hole; the diameter of the hinge hole is larger than the width of the initial groove; and surface treating the piston body to obtain the compressor piston. This invention solves the problem of low processing efficiency caused by the need for repeated rough and fine grinding of the piston hinge surface to achieve higher precision.
Owner:NINGBO YONGWEI GROUP
An outboard mounted cockpit safety door with modular overpressure mechanism and method
The application discloses an out-of-cabin mounted cabin safety valve with a modular excess pressure mechanism and a method. The cabin safety valve comprises a shell (1), a diaphragm (2) arranged in the inner cavity of the shell (1), and a knife-edge valve (3) arranged on the bottom surface of the diaphragm (2). The upper surface of the diaphragm (2) and the shell (1) form a B cavity, the inner side of the knife-edge valve (3) and the shell (1) form an A cavity, and the outer side of the knife-edge valve (3), the bottom surface of the diaphragm (2) and the shell (1) form an atmosphere cavity (4) which is connected with the atmosphere. The A cavity and the B cavity are connected through a hollow valve rod (5). The B cavity is connected with an excess pressure mechanism. The cabin safety valve solves the problems of poor control precision, difficult product debugging and easy fluctuation of excess pressure value under high-altitude conditions.
Owner:XINXIANG AVIATION IND GROUP
Chemical storage tank transfer cart with positioning structure
ActiveCN224197769UDisplacement stabilityavoid damageHand carts with one axisChemical storageStructural engineering
The utility model belongs to the technical field of transfer carts, and particularly relates to a chemical storage tank transfer cart with a positioning structure, which comprises a discharging plate, a U-shaped frame is mounted at the top of the discharging plate, a plurality of support rods are mounted on the inner wall of the U-shaped frame, arc-shaped rods are arranged at the top of the discharging plate and are symmetrical to the U-shaped frame, and the positioning structure is arranged on the arc-shaped rods. A clamping piece is installed at the arc-shaped rod and used for clamping a workpiece, and a supporting part is arranged at the top of the discharging plate. Through the elastic adjustment of the supporting part and the accurate positioning of the clamping piece, the trolley can be adapted to chemical storage tanks with different heights and diameters. Through combination of the second supporting rods and the spring barrels, the positions of the arc-shaped rods can be dynamically adjusted according to the height of the storage tank, transportation vibration can be buffered, and damage to the storage tank or equipment caused by rigid impact is avoided; through the synergistic effect of the lead screw and the guide rod, clamping force of the clamping piece is evenly distributed and free of deflection, and it is guaranteed that the storage tank is stable and free of displacement under the complex road condition.
Owner:ANHUI SHUOYUAN PHARM TECH RES & DEV CO LTD
Ultralow-temperature ball valve for conveying liquid hydrogen
ActiveCN222479617UAchieve positioningno deflectionSpindle sealingsOperating means/releasing devices for valvesLiquid hydrogenTorsion spring
The utility model discloses an ultra-low temperature ball valve for liquid hydrogen conveying, which belongs to the technical field of ball valves and comprises a valve body, a rotating rod is rotatably arranged on the valve body, a connecting block is fixedly connected to the top end of the rotating rod, a handle block is fixedly connected to the connecting block, two holding grooves are symmetrically formed in the handle block, and the handle block is fixedly connected to the valve body. A positioning rod is rotationally connected to one side of the connecting block, a torsional spring is arranged at the rotating position of the positioning rod, and a side contact block is fixedly connected to the positioning rod; according to the utility model, after the handle block is rotated and adjusted, once a hand on the handle block leaves, the positioning rod is clamped into the corresponding arc-shaped positioning groove on the limiting ring block again due to outward rotation under the springback of the torsion spring, so as to realize the positioning of the handle block; and a plurality of arc-shaped positioning grooves are formed in the limiting ring block, so that the handle block can be adjusted at different angles and limited, the handle block cannot deflect at multiple angles, and the stability of the valve body after adjustment is facilitated.
Owner:SHANGHAI SHUANGGAO VALVE (GRP) CO LTD
Pull-type reset flushing and filling valve
ActiveCN224079666UNo deflectionSmooth deflectionEqualizing valvesSafety valvesStructural engineeringAnnular array
The utility model discloses a pull-type reset flushing and filling valve which comprises a valve body, a valve element is arranged in the valve body, the valve body and the valve element are connected in a sealed mode through a sealing piece, a spring is arranged on the outer side of the rear end of the valve element in a sleeved mode, a plurality of guide sliding blocks are arranged on the outer side of the front end of the valve element in an annular array mode, and the guide sliding blocks are connected with the inner wall of the valve body in a sliding mode. The valve core is designed with a guide matching structure, a conical spring elastic traction mode is adopted for resetting, guide and traction double insurance is realized to ensure that the valve core does not deflect in the resetting process, meanwhile, the valve core is designed with a guide taper, and a valve body sealing surface inlet is also designed with a guide taper to ensure that the valve core can be smoothly reset under any condition; meanwhile, one end of the spring is positioned by a step of the valve body, the other end directly acts on the valve core, excessive conversion of middle parts is avoided, and the spring is prevented from being installed obliquely to the greatest extent; moreover, the design scheme without a positioning piece is adopted, so that the hidden danger of rusting of the positioning piece is completely eradicated.
Owner:GUANGDONG HANGJI METAL PRODUCT INDUSTRIES CO LTD
Multi-angle edge grinding machine
ActiveCN222553071Uuniform pressureReduce breakageEdge grinding machinesGrinding work supportsDust controlGrinding wheel
The utility model discloses a multi-angle edge grinding machine, which relates to the technical field of glass processing machinery and comprises two conveying mechanisms, an edge grinding mechanism is arranged between the two conveying mechanisms, and a dust removal mechanism is arranged on the left sides of the two conveying mechanisms. According to the device, eight clamping pieces in the edge grinding mechanism are used for clamping advancing glass, so that the glass subjected to edge grinding stops advancing, pressure borne by the glass is more uniform when the glass is subjected to edge grinding, the glass cannot deflect in the grinding process, and the problem that the glass is broken by a grinding wheel is solved; and a user can control the dust removal mechanism through the intelligent control panel to remove dust on the polished glass, so that the glass production and processing efficiency is improved.
Owner:HUNAN HONGDE GLASS ENGINEERING CO LTD
A method of reducing defects in silicon carbide crystals
PendingCN122082103AReduce phase changeReduce wrapping defectsPolycrystalline material growthFrom condensed vaporsCarbide siliconCrucible
This application discloses a method for reducing defects in silicon carbide crystals, comprising: dividing the interior of a crucible into sequentially adjacent regions A, B, and C using graphite paper rings; adding pretreated silicon carbide raw materials to each region; fixing a seed crystal at the top of the crucible; and performing physical vapor transport growth, annealing, and cooling. The silicon carbide raw material is added in a manner that is high at the center and low at the edges. This method utilizes a flow channel formed by adding graphite paper rings into the crucible, and a stepped loading method to create a loading pattern with low edges and a high center, guiding the orderly volatilization of the airflow. Simultaneously, it ensures that the remaining material does not skew or collapse during the growth process, suppressing and reducing phase transitions and inclusion formation at the source, thereby obtaining high-quality, low-defect silicon carbide crystals.
Owner:JIANGSU TANKEBLUE SEMICON CO LTD +1
Angle-adjustable intelligent riding helmet camera
InactiveCN119606100AEasy to adjustImprove the protective effectClosed circuit television systemsHelmetsSlide plateControl theory
Owner:SUZHOU CHUHE ELECTRONIC TECH CO LTD
Control valve assembly point riveting limiting device for vacuum booster production line
ActiveCN224168551Uquick changeImprove assembly efficiencyMetal-working feeding devicesPositioning devicesStructural engineeringControl valves
The utility model discloses a control valve assembly point riveting limiting device for a vacuum booster production line, which comprises a mounting plate, an oil cylinder is fixed on the mounting plate, and a riveting knife is mounted on a piston rod of the oil cylinder; a guide seat is further fixed on the mounting plate, a fixing groove is formed in the guide seat, and the structure of the fixing groove is matched with that of a spring seat of the control valve assembly; a lifting device is arranged above the guide seat, and a pressure head is mounted at the lifting end of the lifting device; a screw is rotatably arranged on the mounting plate below the guide seat and can circumferentially rotate on the mounting plate, a rotary handle is mounted at the lower end of the screw, a positioning seat is mounted at the upper end of the screw, a positioning square hole is formed in the positioning seat, the structure of the positioning square hole is matched with that of the lower end of an air valve seat of the control valve assembly, and the riveting cutter is horizontally arranged. And the riveting knife faces between the positioning seat and the guide seat. When the riveting tool is used for riveting a control valve assembly, the tool can be quickly replaced, and the assembling efficiency is improved.
Owner:CHONGQING YUANJI AUTOMOBILE PARTS MFG CO LTD