37results about How to "Accurately and securely fixed" patented technology

A bone stabilizing apparatus includes a stem member and an extension member, the stem member having a distal end for insertion within the intramedullary canal of a human humerus and the proximal end connected to the extension member. The extension member has radially directed threaded holes either pre-formed or created after the bone stabilizing apparatus is installed into the humerus. The threaded holes allow fixation of stabilizing screws with suture posts, or a washer structure to grip the surface of the bone and/or surrounding ligaments or muscle. A prosthetic or the natural humeral head can be attached to the extension member. In a preferred embodiment a guide structure directs the drill and stabilizing screws radially through the central axis of the extension member.

The present invention discloses a kind of file tray device for remote network seal machine, and aims at providing one kind of file tray device capable of being controlled with remote control signal for remote network seal machine. The file tray device includes a tray frame, a tray, tracks, and a driving mechanism. The tracks are set on the tray frame, and the tray is connected to the tracks in slide mode. The present invention may be applied widely in seal management of different industry.

The invention relates to a source applicator support which belongs to the field of medical instruments used for clamping and fixing afterloading unit source applicators. The source applicator support comprises a clamping assembly and a rotary assembly. The clamping assembly is mounted on an upper part of the rotary assembly. The rotary assembly comprises a rotary rod. One end of the rotary rod is mounted on a support plate through a spindle. One end of a first rocking arm is provided with a jacket. The rotary rod is arranged in the jacket in a penetrating manner. The other end of the first rocking arm is connected with one end of a second rocking arm through a rocking shaft. The other end of the second rocking arm is provided with an adjusting shaft which is provided with a rotary shaft. An upper end of the rotary shaft is fixed with the clamping assembly. The source applicator support provided by the invention is simple in structure, achieves movement in any direction and adjustment of any direction and any angle in the three-dimensional space, and is high in fixing precision.

The invention discloses a petrochemical industry pipeline support device. The petrochemical industry pipeline support device structurally comprises a pipeline support base, a supporting lead screw, pipeline limiting blocks, pressure bearings, fixing band supporting racks, a lower fixing band, an upper fixing band and limiting block fixing columns. The pipeline support base is of a rectangular structure. The number of the pipeline limiting blocks is at least two. The pipeline limiting blocks are horizontally welded to the upper end of the pipeline support base. The supporting lead screw is fixedly arranged on the upper part of the pipeline support base. The supporting lead screw and the lower fixing band are welded together. According to the petrochemical industry pipeline support device, one end of a supporting rod is connected with folded lugs arranged at the two ends of a pipe groove, it is prevented that the capacity for bearing a petroleum pipeline is influenced because the grooveopening of the pipeline groove deforms in the using process, fixing ribs are used for fixing the petroleum pipeline so as to avoid the situation that the petroleum pipeline inclines on slopes or in places of unsmooth terrain, the pipeline groove is provided with convex edges along the axial direction of the pipeline groove on the surface, cooperation between the petroleum pipeline and the pipelinegroove is facilitated, and it is effectively prevented that a pipeline is damaged because stress changes are caused by fluctuation of petroleum pipeline pressure.

The invention discloses an indoor model for reinforcing a soft sandy soil foundation through a reinforcement method, and belongs to the technical field of foundation test models. The technical problemto be solved is to provide the indoor model for reinforcing the soft sandy soil foundation through the reinforcement method which can be used in various experiments, and through which various data can be acquired visually and conveniently. The technical scheme adopted by the invention is as below: a model box is a square transparent box with an opening at the top; the reinforced soil is sandy soil which is added with one or more layers of reinforced materials; a loading mechanism is a pneumatic jack which is fixed above the center of the model box by a loading support; two horizontally arranged strain gauges are fixed on each layer of reinforced materials; a plurality of soil pressure boxes in pairs are arranged on each layer of reinforced materials; each pair of soil pressure boxes is located on the upper and lower surfaces of the reinforced materials; all strain gauges and soil pressure boxes are connected with a data acquisition device; the data acquisition device is connected witha computer; and a high-speed camera is arranged on a side surface facing the model box. The invention provides the loading test model for reinforcing the soft sandy soil foundation through the reinforcement method.

The invention discloses a bolt fastening structure for railway engineering track laying. The bolt fastening structure comprises a plurality of sleepers, grooves are formed in the tops of the two sidesof the sleepers correspondingly, track stress plates are placed in the grooves of the sleepers, and steel tracks are fixedly connected to the tops of the track stress plates. According to the bolt fastening structure for railway engineering track laying, pull parts drive lock catches to move downwards to enable the lock catches to be connected to positioning pipes in a sleeving mode; then steel sliding push plates are driven to move horizontally through rotation of adjusting rods and the thread propelling principle, that is, the lock catches on the two sides of the steel tracks are pulled towards the outer sides to form a tightened state, and thus it is ensured that the two sides of the steel tracks are more stable; and the contact extrusion height between steel rollers and the steel sliding push plates is changed through the height displacement difference between inclined plane grooves in the bottoms of the steel sliding push plates, that is, adjustable extrusion abutting blocks arelocated in grooves of positioning plates, so that the track stress plates have part of displacement adjusting spaces so as to ensure that the steel tracks are fixed to the sleepers more accurately andstably.

The invention discloses a fixing device for a tunnel inverted arch rubber waterstop and a construction method, and relates to the technical field of fixing devices and methods for embedded rubber waterstops in the tunnel engineering construction process. The fixing device for the tunnel inverted arch rubber waterstop comprises a U-shaped clamping buckle and a buckle fixing support, wherein threaded holes are formed in two side plates, bolts are arranged inside the threaded holes in a matched mode, and the buckle fixing support is fixed to the portion, located outside a U-shaped groove, of a bottom plate. According to the fixing device for the tunnel inverted arch rubber waterstop, the rubber waterstop can be accurately positioned and fixed by adjusting the displacement of the bolts on the two side plates, the fixing device can accurately and stably fix the rubber waterstop, and guarantees that the rubber waterstop is in a straight and flat state all the time, and meanwhile, due to the fact that the fixing device can be circulated, the fixing device can be repeatedly used, saves material resources, and meanwhile, improves the efficiency of fixing work of the rubber waterstop greatly.

The invention provides a novel mechanical arm for disassembling and assembling roller systems of medium and wide strip steel. The novel mechanical arm comprises a lifting mechanism, an aligning mechanism and an axial separation mechanism. The lifting mechanism comprises a lifting table. The aligning mechanism is installed on the lifting table and comprises carrier rollers and a rotation drive mechanism. The carrier rollers are parallel to one another and are connected to the lifting table in a rotating manner. The carrier rollers are arranged in two rows and multiple lines. The carrier rollersin the same rows are coaxially arranged. The carrier rollers in the same lines are arranged in a mirrored manner. The rotation drive mechanism drives the carrier rollers to rotate synchronously in the same direction. By means of the mechanical arm, the rollers are disassembled and assembled in a semiautomatic way, and manpower is saved.

The invention belongs to the technical field of positioning supports, and relates to a high-precision high-strength carbon fiber thin-wall pipe end face connecting structure. The connecting structure comprises a square pipe, a connecting piece fixed to the side wall of the square pipe and a connecting pipe fixed to the side of the square pipe through the connecting piece, and at least two rivet nuts are arranged on the square pipe. The connecting piece is provided with a fixing taper hole, the end, facing the connecting piece, of the connecting pipe is provided with an end face, and the connecting piece is fixed to the end face through a plurality of reverse screws embedded into the fixing taper hole. Counter bores matched with the rivet nuts are formed in the faces, facing the square pipe, of the connecting piece, and the connecting piece is fixed to the rivet nuts through forward screws penetrating through the counter bores. According to the connecting structure, the strength reduction of a punched carbon fiber thin-walled pipe is compensated through the rivet nuts, and the connecting piece is used for connecting, positioning and fixing, so that the connecting pipe can be accurately and firmly fixed on the side of the square pipe.

The invention relates to the technical field of crawler belt accessory machining, and provides a chain piece machining device which comprises a machine frame, a CNC controller arranged on the machine frame, a rotary workbench, a first boring mechanism, a second boring mechanism, a first drilling mechanism, a second drilling mechanism, a feeding conveying mechanism, a mechanical arm and five clamping mechanisms. a groove matched with the bottom face, away from a bolt hole, of a chain piece in shape is formed in the upper surface of each fixing base, and arc-shaped limiting grooves protruding out of the surfaces of the fixing bases are formed in the two ends of the narrow side edges of the grooves; and first movable pressing claws and second movable pressing claws are arranged on the fixing bases in mode of being capable of horizontally moving on the fixing bases and located at the two ends of the chain piece placed on clamping fixing base grooves on two sides of the arc-shaped limiting groove, and arcs shaped grooves matched with arc-shaped side portions of two ends of the chain piece are arranged on sides, facing grooves, of the first movable pressing claws and the second movable pressing claws respectively. The problems that an existing chain piece is low in machining efficiency and not accurate enough are solved.