68results about How to "Improve anti-rotation effect" patented technology

The invention discloses a reverse boring cutter which comprises a cutter rod and a cutter body, wherein the cutter body is arranged at the processing side of the cutter rod; a cutter groove for accommodating and recovering the cutter body is arranged in the peripheral surface of the cutter rod; the cutter body is assembled in the cutter groove in a rotating way; a rotating shaft axis of the cutter body and a cutter rod axis are parallel and are deviated; a rotation stopping mechanism is arranged between the cutter body and the cutter rod and comprises clamping grooves which are respectively arranged on the cutter body and the cutter rod and wedge blocks which are in sliding fit with the clamping grooves; the wedge blocks are matched and connected with an inertial drive mechanism by a telescopic rod which is in transmission connection with the wedge blocks, and a resetting mechanism is arranged on the telescopic rod; the inertial drive mechanism comprises a single-path drive cam which is in drive matching with the telescopic rod and an eccentric inertial block which is fixedly connected with the cam; and a drive wedge block of the eccentric inertial block enables the inertial deviating trend of the cutter body for separating a rotation stopping state to be the same with the inertial recovering trend of the cutter body. The reverse boring cutter realizes the recovery and opening of the cutter body by carrying out rotation in the reverse direction and the positive direction on the reverse boring cutter and is convenient for use.

The invention provides a penetrated screw nut, which comprises an outer peripheral annular bulge (2), an inner peripheral annular bulge (3) and a riveting groove (4), wherein the outer peripheral annular bulge (2) is convexly arranged on the outer periphery of the lower surface of a screw nut main body (1), the inner peripheral annular bulge (2) is convexly arranged in the center of the lower surface of the screw nut main body (1), and the riveting groove is formed between the outer peripheral annular bulge (2) and the inner peripheral annular bulge (3). A plurality of oil discharging transverse grooves (11) with the depth being 0.3 to 1.0mm are formed in the top end surface of the outer peripheral annular bulge (2), so the pressurized oil inside the riveting groove (4) is outwards discharged, and the riveting intensity is improved. When the penetrated screw nut provided by the invention is adopted, the excellent riveting intensity can be obtained even when the penetrated screw nut is arranged on a metal plate with a great amount of oil attached onto the surface.

The invention relates to a novel blowout-prevention and anchoring integrated tool. The tool comprises an anti-rotation part, a releasing part, a pressure relief channel part, an anchoring part, a gravity valve part and a through rod, wherein the anchoring part comprises a supporting slip; an upper joint of an anti-rotation anchor is connected with the lower end of a screw pump; a lower joint of the anti-rotation anchor is connected with a sieve pipe; the lower end of the sieve pipe is connected with a connecting joint of a releasing packer; the lower end of a connecting rod is connected with the through rod; an upper joint of a pressure relief channel is connected with a lower joint of the releasing packer; an upper joint of the supporting slip is connected with a lower joint of the pressure relief channel; an upper joint of a gravity valve is connected with a central pipe of the supporting slip; and a lower joint of the gravity valve is connected with an oil pipe through threads. According to the novel blowout-prevention and anchoring integrated tool, the anti-rotation effect is more ideal, the failure caused by insufficient engagement force after the long-term use of the releasing packer is prevented, the danger of upward channeling of a tubular column during operation can be avoided through the pressure relief channel part, and the failure of a float switch caused by sand sinking accumulation of a fractured well can be avoided.

The invention discloses a preparation method of a sewage treatment agent. The method comprises the following steps: 1) surface modification of polyaluminum ferric silicate; 2) modification of the surface-modified polyaluminum ferric silicate with amino starch; 3) dimethyl-vinyl phosphate exchange; 4) polymerization; and 5) ion exchange. The invention also discloses the sewage treatment agent prepared by the preparation method of the sewage treatment agent. The sewage treatment agent has the advantages of remarkable sewage treatment effect, small use amount, fast reaction speed, no generation of toxic and harmful gases in the reaction process, safety and environmental protection in use, safety to human bodies and no corrosion to devices before and after the reaction, simple use method, andno addition of devices or materials.

The invention relates to continuous conduit type coring equipment which comprises a coring device and a continuous conduit operation device. The coring device comprises an inner pipe assembly and an outer pipe assembly, and the inner pipe assembly can be connected with the outer pipe assembly in a clamping manner; the outer pipe assembly comprises an outer pipe and a drill bit arranged on the outer pipe, and the inner pipe assembly comprises an inner pipe component and a central rod; the inner pipe component comprises a core inner cylinder, a core outer cylinder and a pressure retaining valvearranged at the bottom of the core outer cylinder; and the continuous conduit operation device comprises a continuous conduit and a guiding and injecting integrated mechanism capable of pulling the continuous conduit down or out, wherein the continuous conduit is used for lowering and lifting the inner pipe assembly. The pressure maintaining coring device is lifted up and lowered by using the continuous conduit operation device, a cable can penetrate in the continuous conduit conveniently transmit measurement and control signals, and real-time measurement of hole bottom parameters is facilitated; the guiding and injecting integrated mechanism integrates a guiding function and an injecting function, a guide gooseneck can be omitted, and the height of the equipment can be effectively reduced; and the equipment is particularly suitable for operation environments with the limited space height.

The steering device of motorcycle includes one directional column, one upper connecting plate with one through hole for the directional column to penetrate, and one semi-circular key between the directional column and the upper connecting plate. The directional column has one upper thread section and one lower conic section. The through hole in the upper connecting plate has one upper conic part and one lower straight part in the diameter not smaller than the maximum diameter of the conic part, with conic part being matched with the conic section in the directional column. The present invention has reasonable structure, high connection reliability between the directional column and the upper connecting plate and other advantages.

The invention provides an intramedullary nail and belongs to the field of medical instruments. The intramedullary nail comprises a nail body, wherein the nail body comprises a guide section and a locking section which are connected, and the outer diameter of the locking section is gradually increased from an implanted end of the nail body to the tail end of the nail body; an anti-rotation thread is arranged on the outer peripheral surface of the locking section, and the pitch of the anti-rotation thread is gradually decreased from the implantation end to the tail end. According to the intramedullary nail, the compression effect is generated on the fusion part by the nail body through the gradual change thread, and the joint fusion degree is high and the operation success rate is high whenthe intramedullary nail is used.

The invention relates to the field of maintenance operation on an electric pole and tower, and in particular relates to a direct-current 500kV circuit lower composite insulator flexible ladder which comprises upper hanging points, a lower single hook, a hanging belt and a pedal cross tie. The direct-current 500kV circuit lower composite insulator flexible ladder is characterized in that the upper hanging points are dual hanging points; the two upper hanging points are connected by an insulation plate bar; the lower single hook has a width of 150-200mm, and the pedal cross tie has a width of 300-350mm; each upper hanging point comprises a hanging body, a hanging belt winding shaft and a winding shaft positioning device; the hanging body corresponding to a cross arm is provided with an opening; the hanging belt winding shaft is movably connected with the hanging body; one end of the hanging belt winding shaft is a polygonal head part, and the other end of the hanging belt winding shaft is connected with the winding shaft positioning device; the hanging belt winding shaft is provided with a through groove; and the end part of the hanging belt is fixed on the through groove. Compared with the prior art, the direct-current 500kV circuit lower composite insulator flexible ladder provided by the invention has the beneficial effects that a dual-hanging-point structure is adopted, the rotation prevention performance of the flexible ladder is increased, the rotation and shaking for the overhauling personnel in descending the ladder are relieved, and the falling down and casualty accidents of the overhauling personnel caused by panic is prevented.

The invention discloses a tool for rapidly loosening and tightening a bolt. The tool comprises a hex-socket-shaped nut sleeve, the nut sleeve is connected with a handle coaxial with the nut sleeve, the outer circumference wall, corresponding to the position matched with a nut, of the nut sleeve is provided with an anti-rotating rod for preventing the nut sleeve from rotating, and the anti-rotating rod is perpendicular to the central axis of the nut sleeve. The invention further discloses a method for rapidly loosening and tightening the bolt, and the method includes the steps of fixing the nut, preparing a pneumatic impact wrench, loosening and tightening the bolt and removing the bolt. The tool and method for rapidly loosening and tightening the bolt are low in manufacturing cost, simple, fast and convenient to operate, capable of rapidly loosening and tightening the bolt in match with the tool and method for rapidly loosening and tightening bolt and high in production efficiency.

The invention relates to a pen cap, which comprises a sleeve. According to the technical scheme, the sleeve is provided with convex ribs integrated with the sleeve, and the convex ribs are arranged in a manner of protruding and along the length direction of the sleeve. The pen cap can be sleeved outside a pencil, a ballpoint or a signing pen as needed, and rotation of the pen can be hindered by the convex ribs on the pen cap. Moreover, when the convex ribs are broken at intervals, better anti-rotation effects can be achieved.

The invention aims to provide a tail door pushing rod outer pipe fixing structure convenient to assemble and capable of avoiding outer pipe rotation. In order to achieve the purpose, the following technical scheme is adopted: the tail door pushing rod outer pipe fixing structure comprises a motor outer pipe, a spring outer pipe, a jacking pipe outer pipe, a guiding pipe and a jacking pipe; a firstball head assembly is fixed to the end, away from a lead screw nut, of the jacking pipe; one end of a lead screw is fixed into the motor outer pipe through a bearing; a guiding pipe sleeve is arranged at the end, close to the spring outer pipe, of the motor outer pipe, and two or more positioning bulges are arranged on the axial face of the guiding pipe sleeve or the motor outer pipe; the end, close to the motor outer pipe, of the spring outer pipe is provided with a first inner convex ring which is provided with a plurality of first positioning grooves corresponding to the positioning bulges; and a compression spring is located between the guiding pipe and the spring outer pipe, one end of the compression spring abuts against the axial face of the first inner convex ring, and the other end of the compression spring abuts against the first ball head assembly.

The invention provides a cup head square neck bolt. The cup head square neck bolt can realize one-time cold extrusion forming; the cup head square neck bolt is high in precision, and comprises a hemispherical round head end and a cylindrical body; the ratio of the thickness of the hemispherical round head end to the diameter of a bolt rod is moderate; and the ratio between a square neck column andthe bolt column body is also moderate, so that the service life of a mold is improved. All the impact received by the cup head square neck bolt can be gathered onto a shock-absorbing bag, and the impact can be completely eliminated through the deformation of the shock-absorbing bag and the change of gas flow paths inside the shock-absorbing bag, so that the impact is not transmitted to the bolt rod. When the cup head square neck bolt is in connection, rubber bands filled in annular grooves in a surrounding manner are pressed, by the hole wall of a square hole, into the annular grooves due tothe elasticity of the rubber bands, and the gap between an anti-rotation block and the square hole is effectively filled. Therefore, the objectives of better anti-axial-rotation effect and reliable cooperation are realized; and in some violent working conditions, the square hole in a mounting seat is in elastic contact with the rubber bands arranged in a surrounding manner so as to effectively avoid abnormal sounds.

The invention discloses a stranding and cabling device for optical cable production, which comprises a supporting mechanism and a winding mechanism, wherein the supporting mechanism mainly comprises asupporting frame, a working plate and a rack. The stranding and cabling device is characterized by further comprising a stranding mechanism, a placing mechanism and an anti-back-twist mechanism, wherein the stranding mechanism comprises a rotating plate, a guide frame and a first placement frame, a wire through hole I is formed in the center of the rotating plate, the rotating plate is rotationally connected to the top of the working plate, a protruding block is arranged at the bottom of the rotating plate, the protruding block penetrates through the working plate and is connected to a motorthrough a chain, and the first placement frame is rotationally connected to the outer side of the top of the rotating plate. Through the arrangement of the placement mechanism, the function of facilitating feeding is achieved; the whole anti-back-twist mechanism is small in structure, simple in structure and close to the rack, so that the self-rotation of the optical cable can be effectively prevented, and the anti-rotation effect is good.

The invention discloses a fastening bolt which comprises a nut (1) and a screw rod (2) integrated with the nut (1). The screw rod (2) comprises a threaded rod provided with a thread (3) and a polished rod. The thread (3) is arranged at the lower end of the screw rod (2). Antiskid teeth (4) are arranged on the polished rod, and a plurality of grooves (5) are distributed in the upper end, close to the nut (1), of the screw rod (2) in the circumferential direction. The fastening bolt is simple in structure, convenient to install, capable of preventing the phenomenon that connecting parts vibrate, rotate and are prone to being loosened, good in fastening effect, good in durability and high in practicability.

The invention discloses a workpiece tightening all-purpose rotation stop mechanism and a main reduction gear rotation stop and tightening mechanism. The main reduction gear rotation stop and tightening mechanism comprises a twisting assembly used for twisting multiple screws on a main reduction gear at the same time, and further comprises a rotation stop mechanism. The rotation stop mechanism comprises a rotation stop locating block, a rotation stop pin and a spring. A rotation stop pin motion hole is arranged in the rotation stop locating block, the rotation stop pin is kept in the rotation stop pin motion hole, and the spring presses the rotation stop pin bias so that the rotation stop pin can have the tendency of stretching outwards. The rotation stop pin is used for allowing the headsof the screws to stretch into rotation stop pin motion hole when the screws are already twisted in screw holes in the main reduction gear so as to achieve rotation stop on the main reduction gear. According to the workpiece tightening all-purpose rotation stop mechanism and the main reduction gear rotation stop and tightening mechanism, rotation stop is achieved through bolt via holes and bolts needing to be assembled and tightened, quite wide flexibility is achieved, the structure is compact, and the scheme is reliable.

The invention relates to a novel sliding nut for a sliding rail of an automobile seat. The sliding nut comprises a hanging part, a sliding part and a threaded through hole; the lower surface of the hanging part is coaxially provided with the sliding part integrally, the edges of the front side and the rear side of the sliding part are flush with the edges of the front side and the rear side of thehanging part in an up-and-down mode, the upper surface of the sliding part is connected and integrated with the lower bottom surface of the hanging part in parallel, side edge sliding grooves are symmetrically formed in two horizontal sides between the sliding part and the hanging part, and the interiors of the hanging part and the sliding part are coaxially provided with the threaded through hole in a communicating mode. According to the novel sliding nut, adjustment is quite convenient and rapid, and time and labor are saved; when two horizontal ends of the hanging part are arranged close to the inner walls on two sides of the sliding rail, the inner walls on the two sides of the sliding rail have a limiting effect on a side wall of the sliding nut, so that the sliding nut has a good anti-rotation effect, and use effect is guaranteed; and meanwhile, the sliding nut has a sliding effect, therefore, functions of nuts are enriched, types of the nuts are enriched, the application rangeis expanded, and use requirement is met.

The invention discloses a fastening screw capable of conveniently achieving width compensation, relates to the technical field of fastening screws, and aims to solve the problems of poor anti-loosening effect and low stability of an existing fastening screw. The fastening screw is characterized in that a locking sleeve is arranged inside a locking piece, a screw main body is installed inside the locking sleeve, a screw head is arranged on the screw main body, a circular through hole is fixedly formed in the bottom of the locking sleeve, a screw rod is fixedly arranged below the screw head, oneend of the screw rod extends out of the circular through hole, external threads are arranged on the outer wall of the screw rod, the external threads are in threaded connection with the locking piece, a linear groove is fixedly formed in the upper surface of the screw head, a circular deep groove is fixedly formed below the linear groove, a hollow cavity is formed inside the screw rod, the hollowcavity and the circular deep groove are in communication with each other, a solid wax layer is arranged on the inner wall of the hollow cavity, a metal cylinder is fixedly arranged inside the hollowcavity, and a heat conduction column is arranged inside the metal cylinder.