129 results about "Screw post" patented technology

This invention relates to a supersonic motor, in which, a flange is set on a screw post, compressional vibration piezoelectric ceramic plate sets, bent vibration piezoelectric ceramic plate sets, pole copper plates and a cover are mounted on the post and fixed to become one unit with a cross orthogonal luff rod by the post, the polarization directions of two adjacent bent vibration piezoelectric ceramic sets are opposite and those of the two adjacent compressional piezoelectric ceramic sets are opposite, a drive foot is placed at the center of the luff rod and fixed on it and a rotor ball sits on the drive foot and the fixed component fastened to the flange.

A lifting holder structure contains a base and a moving rod, and the base includes plural fitting sleeves which are fitted together, the moving rod includes a first screwing post arranged on a bottom end thereof and fitted into a second screwing post via a lowermost of the plural fitting sleeves. The second screwing post and the plural fitting sleeves are fixed via an interstitial connecting structure, and a top of the second screwing post is limited by a driving post within an angle range and is driven by an angular coupling structure, such that the driving post rotates to drive the second screwing post and a first screwing post to change a pitch stroke, thus moving a lifting holder vertically.

The invention relates to an eccentric screw and a method for assembling and constructing the eccentric screw. The eccentric screw comprises a screw cap, a screw neck, a screw post, and a female screw, wherein the screw cap whose section is a round shape and is integrated with the eccentric screw. The diameter of the screw post is smaller than the diameter of the screw neck, the screw post and the screw neck are connected eccentrically, namely that the axial center of the screw post b is not superposed with the axial centers of the screw cap and the screw neck, a parallel notch is opened on the top face of the screw cap, and the parallel notch penetrates simultaneously through the axial centers of the screw cap and the screw neck and the axial center of the screw post. And one end of the parallel notch which penetrates the axial centers of the screw cap and the screw neck is stretched to the edges of the top face of the screw cap, and the end of the parallel notch which penetrates through the axial center of the screw post is not stretched to the edges of the top face of the screw cap. The eccentric screw can regulate the location of a decorative plate without regulating a keel, and more easily controls the global paleness, and assembly type construction increases the speed of the construction.

A seat support structure of a bicycle comprises a seat supporting tube; a seat supporting rod received in the seat supporting tube; a lower lateral side of the seat supporting rod having a first inclined surface; the seat supporting rod being formed with an upper hole and a lower tapered hole; a tightening assembly received in the seat supporting tube; the tightening assembly having a tightening unit, an embedding unit; and a stud; in assembly, a screw post of a stud passes through the upper hole, the lower tapered hole, the stud hole of the tightening assembly and the embedding hole of an embedding hole so as to combine the tightening assembly to the seat supporting rod; then the seat supporting rod and the tightening assembly are placed within the seat supporting tube.

The invention provides a vacuum impregnation device of a fiber composite material. A cylinder of the vacuum impregnation device is convex, the bottom of the vacuum impregnation device is fixed on a rack; a feeding screw nut for a feeding screw post is fixed on the rack; the lower end surface of a piston provided with a sealing ring is connected with the end surface of the feeding screw post, and the upper end surface of the piston is fixed together with a PTFE (Polytetrafluoroethylene) plate; supporting nets are fixed on the lower end surfaces of bushes at two inner sides of the cylinder; thetop of the cylinder is provided with an upper cover of a sealing cavity; a rotating shaft passes through a through hole in the upper cover of the sealing cavity, and the lower end surface of the rotating shaft is connected with a PTFE roller; and the upper cover of the sealing cavity is also provided with a gas charging/discharging hole and a pressure gauge. When the vacuum impregnation device isused, an appointed amount of resin is sprayed uniformly in a groove of the PTFE plate through a paint spray gun, evacuation is carried out, the rotating shaft is rotated to drive the PTFE roller to rotate on the supporting nets to evict remained air bubbles in a fabric and the resin, then the pressure in the device is released, the piston is withdrawn by using the feeding screw post, and the fabric is taken down to continuously dry. The vacuum impregnation device is simple in operation and capable of controlling the content of impregnation resin, ensuring the uniformity of the impregnation resin and effectively improving the impregnation effect of the fabric.

The invention discloses a solar cell panel installation support with adjustable angle. The support comprises a fixed base plate. The two ends at the front side of the fixed base plate are fixedly provided with a first articulation base each. The first articulation base is articulated to a vertical front support rod. The back side of the front support rod is provided with a vertical back support rod. The two ends of a connection rod are articulated to the front support rod and the lower end of the back support rod respectively through articulation shafts. The connection rod abuts against an arc adjusting rod. The lower end of the adjusting rod is fixedly arranged on the fixed base plate while the upper end is fixedly arranged on the front support rod. The adjusting rod is provided with an arc shaped direction guiding groove. The direction guiding groove is inserted by a screw post. One end of the screw post is fixed on the connection rod while the other end penetrates the adjusting rod and is connected with the first adjusting nuts through screws. Simple in structure, the support can be adjusted in full angles so as to meet the solar cell panel's requirement to receive sunlight and to increase the energy utilization efficiency of solar cell panel.

A screw post is detachably screwed with a self-tapping screw. The screw post includes a post body and a rib structure. The post body has an approximately triangular hollow structure formed therein. The approximately triangular hollow structure has three arc-shaped sides. The rib structure protrudes from an outer surface of the post body corresponding to at least one of the three arc-shaped sides in an axially-extending manner. The self-tapping screw is screwed into the approximately triangular hollow structure.

An exemplary heat dissipation device includes a fan having a plurality of first fixing cylinders, a heat sink having a plurality of second fixing cylinders, and a plurality of fasteners fixing the fan to the heat sink. Each of the fasteners includes a screwing post, an elastic member encircling the screwing post, and an annular fastening collar engaging with the screwing post. Each of the fasteners extends through a corresponding first fixing cylinder of the fan and a corresponding second fixing cylinder of the heat sink. The elastic member of each fastener is compressed between the corresponding first fixing cylinder and the corresponding second fixing cylinder.

A single screw extrusion desulfurization and post-processing system, and a method for preparing reclaimed rubber, the single screw extrusion desulfurization and post-processing system comprising: a single screw desulfurization device, a single screw post-processing device and a closed connection device connecting the single screw desulfurization device and the single screw post-processing device. The single screw post-processing device comprises a post-processing feeding device and the post-processing device mutually connected, and the post-processing screw running through the post-processing feeding device and the post-processing device.

The invention discloses a high-efficiency bearing cleaning device, which includes a support base plate, a cleaning machine casing is installed on the support bottom plate, a driving motor is fixed on one side of the cleaning machine casing, and the output shaft of the driving motor passes through the The shaft coupling is connected with the rotating shaft, and one end of the rotating shaft is fixed with a bolt column, and an upper splint and a lower splint are fixed on the bolt column, and a top cover is installed on the top of the washing machine casing, and a A water pump, the water pump is connected with a conduit, a spray nozzle is installed on the conduit, and a cabinet door and a PLC controller are installed on the surface of the washing machine casing. The present invention can control the distance between the upper splint and the lower splint by adjusting the bolt column, is suitable for different bearing types and sizes, and can clamp the bearing to avoid the phenomenon that the bearing falls during cleaning, and the driving motor can be Drive the upper splint and the lower splint to rotate, so that the bearings can be fully cleaned.

The invention discloses an anti-rust tapping screw. A screw body is internally provided with an oil injection hole, an oil storage groove, an oil guide channel and other parts, so that anti-rust oil in the oil storage groove can flow to the surface of a screw rod of a screw post body through the oil guide channel; the oil injection hole is sealed by using a sealing bolt to prevent the anti-rust oil from making direct contact with the outside atmosphere and prevent oxidization; an external thread arranged on the sealing bolt corresponds to an internal thread of the oil injection hole, so that the sealing effect is improved; a groove formed in the sealing bolt facilitates installation and disassembly of the sealing bolt; a self-tapping thread is arranged on a screw tip, so that the screw body has the self-tapping characteristic. Compared with the prior art, the anti-rust performance is good while the characteristics of self-tapping screws are taken into consideration.

The invention discloses a financial certificate punching device, which comprises a bottom plate, an upper plate, a pressure rod, a connecting rod, a hydraulic lifting column, and a round hole. A suction cup is bonded to the bottom of the bottom plate, and a round hole is opened on the upper surface of the bottom plate. An air outlet head is installed in the round hole, and the air outlet head is connected to the air guide pipe. There is a drawer on the bottom plate, and a screw-mounted column is installed in the drawer. There is a screw-mounted hydraulic lifting column on the bottom plate. The upper plate is equipped with a screw-mounted fixing block, the pressure bar is hinged with the fixed block, the connecting rod is welded to the pressing bar, a sleeve is installed on the upper plate, and the connecting rod is connected with the upper plate through the sleeve. The end is tapered, the bottom of the connecting rod is welded with a first spring, and the upper plate is provided with a screw hand wet device. The invention is simple in structure and reasonable in design; the hydraulic lifting column can adjust the height of the upper plate, thereby adjusting the strength when punching holes, and the air outlet head and the air guide pipe can easily clean the paper scraps in the round holes.

The invention discloses a semi-automatic isometric angle extrusion testing device, belongs to the technical field of thermal machining and extrusion of materials and can be applied to an ECAE (equal channel angular extrusion) test of a Ti5553 alloy. The semi-automatic isometric angle extrusion testing device comprises an ejection rod, a lower die, an upper die, a sample baffle device, sample ejection screws, a guide post, a sample outlet channel, a sample baffle, a baffle screw post, screw post connecting rods, an upper-die and lower-die connecting bolt and nuts. According to the semi-automatic isometric angle extrusion testing device, a #-shape channel is formed by the sample baffle device, thereby greatly facilitating the feeding of samples; as the oblique planes of sample baffles are matched with the ejection rod, the sample surrounding device can be automatically reset during extrusion; the samples can be stably taken out by the sample ejection screws without detaching the upper die and the lower die.