74results about How to "Power transmission is simple" patented technology

The invention discloses a suspend dome structure multi-prestressed construction method used in construction field. The construction method is that: firstly, a central pressure ring, an upper radial bar and edge elements are arranged on an upper layer; secondly, a lower radial rope, a lower ring rope and a strut are arranged on a lower layer; thirdly, prestress is applied in the structure by stretching the lower ring rope or stretching the lower radial rope or adjusting the length of the strut; fourthly, a ring bar is arranged; fifthly, an external load is applied on the structure. Compared with the structure formed by a traditional method, the suspend dome structure formed by the invention reduces peak pressure of elements with concise force, even changes a part of elements from a pressure bar to a tension bar, avoids instability of elements, at the same time enhances the entire stability of the whole structure and enlarges the ultimate bearing capacity. Furthermore, the invention leads a more even distribution of internal force of the upper layer network shell bar elements, is helpful to the unity of the elements and convenient for design and construction, at the same time, the invention reduces the applied prestress value and reduces construction difficulty.

A versatile, variable gear ratio mechanical transmission system is providing having similar first and second spaced Disc Subsystems connected by a belt or chain. Each subsystem of which comprises three primary components: (1) a Shift Actuation Structure located at one outermost side; (2) a Receiving Disc located at the opposite side; and, (3) a Retention Disc sandwiched between. The Retention and Receiving Discs accommodate concentric rings of proportionally spaced holes in which corresponding smooth, contoured or toothed Headed Pins are maintained, engaged, or retracted. When the pins are engaged, they span the slot between the Receiving Disc and Retention Disc and interface with the conveyance transferring load from Driving Disc Subassembly to the Driven Disc Subassembly.

The invention relates to a shear wall structure configured with crossed slant internal prestress. The shear wall structure comprises a shear wall body, horizontal steel bars of the shear wall body and vertical steel bars of the shear wall body, wherein a shear wall tooth plate and a prestress tension end anchor tool are respectively arranged at the left upper corner and the right upper corner of the shear wall body, prestress anchoring end anchor tools are respectively arranged at the left lower corner and the right lower corner of the shear wall body, and a crossed slant prestress steel beam and a crossed slant prestress pipeline are arranged between the prestress anchoring end anchor tool and the prestress tension end anchor tool at the opposite corners. A construction method of the structure comprises steps of shear wall template erection and binding of ordinary steel beams of the wall body; crossed slant prestress pipeline arrangement and installation; prestress steel beam penetration and prestress anchor tool installation; shear wall concrete casting and maintenance; and prestress tension, pipeline grouting and end part anchor sealing. The shear wall structure greatly improves the anti-seismic performance of the shear wall.

A high altitude pouring steel column internal concrete operating platform frame belongs to the technique field of the auxiliary equipment of the building structure construction. The platform frame comprises a tool falsework platform and is characterized in that a clamping bolt is provided. The tool falsework platform is laid on a steel girder which is used for facilitating to pour at least two concrete in the steel column. The clamping bolt is used for permanent connection between the tool falsework platform and the steel girder. The invention can simplify the high-difficult and high-dangerous high altitude operation to the ground. The use time of the tower crane is reduced and the ground is saved. The steel tube and buckle and the like are all common material in construction. The invention has the advantages of high recovery and use percentage, convenience to the constructor, alleviation to the labor intensity, increased construction efficiency, increased security, low cost and excellent economic property.

The invention relates to a scaffold unloading steel wire rope setting method. Unloading steel wire ropes are arranged on a whole scaffold or a local corner of the scaffold, wherein the bottom of the overhanging scaffold and the periphery of a middle layer of a scaffold body or the periphery of a floor frame body layer are provided with the steel wire ropes for unloading of the scaffold, the unloading steel wire ropes are fixedly connected with a structural main body through structural connection beam threading bolt holes or reserved penetration holes in a corresponding top plate or a corresponding wall body where the unloading steel wire ropes are located. Holes with a diameter of phi 28-phi 40 are reserved in the wall body or a floor, and the unloading steel wire ropes of the scaffold penetrate through the holes and are stuck to the inner sides of the holes by steel tubes with a diameter of phi 48. When the unloading steel wire ropes are stressed, the steel tubes are pulled to a structural face layer so that the steel tubes with the diameter of phi 48 are fixed to a structural face, and the situation that the steel tubes slip cannot occur. Compared with a traditional unloading mode that steel bar anchor rings are embedded in the wall body or the floor, the method is high in safety and easy to operate.

The invention relates to an automatic packaging system for medical waste. The system comprises a case frame, a box lifting mechanism, a box cover grabbing mechanism, a box cover moving mechanism and a quick sealing mechanism, wherein a linear actuator is driven by a lifting motor of the box lifting mechanism to drive a bracket and a dustbin to rise and fall; a left-handed and right-handed trapezoidal screw is driven by a grabbing motor of the box cover grabbing mechanism to rotate to drive a left-handed trapezoidal nut and a right-handed trapezoidal nut to conduct opposite linear motions, so that actions of grabbing and releasing of a box cover are realized; a gear is driven by the box cover moving mechanism through a moving motor to rotate, so that forward and backward movement of the whole grabbing mechanism is realized; and a sealing gear is driven by a sealing motor of the quick sealing mechanism to rotate so as to drive a sealing rack and a rear sealing door to move, the rear sealing door moves along a sealing rail through a rolling wheel assembly, and a front sealing door moves in an opposite direction simultaneously, so that opening and closing of a waste inlet are realized. The system is reasonable in structure, simple and reliable in power transmission, high in operability and high in efficiency.

The invention discloses a high-vanadium round wire tendon rope clamp which comprises clamp bodies, connecting ear plates, an anticorrosion zinc layer, an anti-sliding metal layer and a high-strength bolt. According to the rope clamp, two rope clamp bodies which are symmetry in shape are integrally connected through the high-strength bolt so as to tightly clamp a high-vanadium round wire tendon rope body; the anti-sliding metal layer is filled at the contact part of the rope clamp bodies and the rope body; and the rope clamp bodies are subjected to hot galvanizing anticorrosion treatment. The invention also provides a manufacturing process of the rope bodies and a design method of shape and size. The rope bodies are machined by using high-strength steels, so that the problems of high manufacturing cost, quality defects and the like caused by the fact that cast steel joints are adopted are avoided. The rope clamp joint is simple in structure, convenient to manufacture and construct and economic and reasonable; the performance of the joint is verified through tests, so that the rope clamp joint is applicable to connection joints in a stretch-draw type rope rod beam pre-stress spatial structure. By adoption of the rope clamp, the force bearing performance of the high-vanadium rope body is effectively improved, the anticorrosion plated layer on the surface of the steel wire is protected, the anti-sliding ability of the rope clamp and the rope bodies is improved, so that the rope clamp is beneficial for the high-vanadium round wire tendon to be popularized and applied in China.

The invention relates to a hand-held medical liquid dispensing device. The hand-held medical liquid dispensing device comprises a shell, and a drive device and a main control circuit board which are positioned in the shell, wherein the drive device comprises a support frame, a direct current motor, a driving screw gear, a driven screw gear, synchronous belt wheels, synchronous belts, a push-pull head and a guide rod; the driving screw gear is mounted on a gear shaft connected with the direct current motor; the driven screw gear is mounted on a back rotation shaft; the driving screw gear and the driven screw gear are matched with each other; both sides of the driven screw gear on the back rotation shaft are respectively provided with one synchronous belt wheel; the two synchronous belts are mounted between the synchronous belt wheels; the lower part of the push-pull head is fixedly connected with the synchronous belts; and the rotating motion of the direct current motor is converted into the linear reciprocating motion of the push-pull head through the transmission of the screw gears and synchronous belts, thereby pushing/pulling a core rod of a syringe. The hand-held medical liquid dispensing device has the advantages of reasonable structure, small volume, light weight, convenient operation process and simple and reliable power transmission, and can be used with a common disposable syringe for medical liquid dispensing.

The invention discloses a large single-K node triangular truss stiffening ring. The stiffening ring is characterized by comprising a single K node triangular truss circular ring, an integrated centralhub and radial pull rods, wherein the single K node triangular truss circular ring is connected with the integrated central hub through the radial pull rods; the single-K node triangular truss circular ring is formed by splicing N standard sections, wherein each standard section comprises an outer chord tube, an inner chord tube, a web rod tube, a single K node and a reference triangular frame; the integrated central hub comprises a hub shaft tube and a hub plate node; and the 2 n radial pull rods are uniformly arranged around the integrated central hub in a spindle-shaped annular direction.The invention further provides an integrated tension application method of the large single-K node triangular truss stiffening ring. According to the stiffening ring and the method, the overall rigidity, the load deformation capability and the stability of a composite material truss can be improved, and the composite material truss can be applied to a large aircraft structure and an aerospace space assembly type platform.

The invention provides an amphibious motorcycle, which comprises a motorcycle body, a left pontoon and a right pontoon which are arranged on the left side and the right side of the motorcycle body respectively and pontoon collecting and releasing mechanisms for the left pontoon and the right pontoon respectively. The left pontoon and the right pontoon are respectively connected with the motorcycle body through the corresponding pontoon collecting and releasing mechanisms and move between a display position far away from the motorcycle body and a collecting position close to the motorcycle body through the corresponding pontoon collecting and releasing mechanisms. Influences on driving, volume and appearance of the motorcycle caused by existence of the pontoons are reduced, and the pontoons can be taken back towards the motorcycle body through the collecting and releasing mechanisms and a telescopic structure. When the amphibious motorcycle is operated on the land, the pontoons are tightly attached to the motorcycle body, volume of the pontoons is not large, and the pontoons can be arranged by using free space of the motorcycle body fully.

The invention relates to a corrugated pipe metering pump which comprises a bracket, an electromagnetic valve, a direct-current speed reducing motor, a cam and a corrugated pipe, wherein the upper part of the corrugated pipe is communicated with a liquid inlet and outlet pipeline of the electromagnetic valve through a corrugated pipe joint; a return spring is sleeved outside the corrugated pipe; the lower part of the closed corrugated pipe is connected with a transmission rod; the transmission rod passes through a nut; a bearing is installed at the bottom end of the transmission rod; the bearing is always in contact with the rim of the cam; the rotary cam drives the corrugated pipe through the transmission rod to extend and shrink to enable the corrugated pipe to suck and discharge liquid; the nut is matched with a corrugated pipe nut seat for supporting the corrugated pipe; and the deformation stroke of the corrugated pipe is adjusted by adjusting the screw-in depth of the nut in the corrugated pipe nut seat, thereby changing the liquid sucking amount and the liquid discharging amount of the corrugated pipe. The invention has the advantages of reasonable structure, simple and reliable power transmission, adjustable corrugated pipe displacement, no radial deformation, high repeated liquid feeding accuracy and adjustable pump displacement, and is suitable for occasions with the requirement of variable pump displacements.

The invention relates to a section steel tripod for a cantilevered scaffold. The section steel tripod comprises a beam, a vertical strut and an inclined strut, wherein the beam, the vertical strut and the inclined strut form a triangular structure; a small vertical strut is arranged between the beam and the inclined strut; a small cross strut is arranged between the vertical strut and the inclined strut; strong-strength bolt preformed holes are formed in the vertical strut; the vertical strut is connected with a structural column or a wall body through the preformed holes by anchor parts to realize the mounting of the section steel tripod; 14# I-steel is adopted for the beam and the vertical strut; 10# I-steel is adopted for the small vertical strut and the small cross strut; the beam is provided with stiffening rib plates; and limiting reinforcement heads are arranged below the beam. For a local core tube part (such as an elevator room position and a staggered floor of steel cantilever beams) without a floor slab, steel beams of an ordinary cantilevered scaffold cannot be normally arranged, and is fixedly arranged on a main body structure through the section steel tripod, and stress on the cantilevered scaffold is transmitted to a structural wall body through anchoring bolts by the tripod, so that the tripod is clear in stress and simple in stress transmission, and can be recycled, the construction safety and operability are ensured, a requirement on a construction period is met, and the efficiency is improved.

The invention discloses a basic structure for extra-high-voltage single-column guyed tower V-shaped stayguys. The basic structure comprises stayguys, a tower column connected by the stayguys, and a plurality of basic structure main bodies, wherein each basic structure main body comprises a base plate, an inclined main column fixed on the top surface of the base plate, a U-shaped stayguy rod of which one end is embedded into the inclined main column and the other end is exposed out of the top surface of the inclined main column, and a triangular connecting plate fixed on the exposed end of the U-shaped stayguy rod, the stayguys are fixed on the triangular connecting plate, two stayguys are arranged between each basic structure main body and the tower column in a V shape, the U-shaped stayguy rod is bent in the inclined main column, a bending line of the lower section is parallel to a geometric center line of the inclined main column, and a bending line of the upper section is parallel to a plane on which the two stayguys on the basic structure main body are positioned. The basic structure can be preferably matched with a V-shaped stayguy arrangement structure, the bearing requirement of an extra-high-voltage guyed tower can be satisfied, the quantity of foundations is reduced, the form is simple, and the basic structure is easy to realize.

The invention discloses a male parent cutting machine for a hybrid rape seed production field. The male parent cutting machine comprises a rack which is provided with a handle, an engine, a gear shifting handle, a walking gearbox, a spiral conveying roller gearbox, two cutter gearboxes, two reel mechanisms and two dividing plate assemblies. A first output shaft on the engine is in transmission connection with an input shaft of the walking gearbox through a first transmission mechanism, an input shaft of the cutter gearbox is in transmission connection with an input shaft of the walking gearbox through a second transmission mechanism, and the reel mechanism is in transmission connection with an output shaft of the cutter gearbox. A second output shaft on the engine is in transmission connection with an input shaft of the spiral conveying roller gearbox through a power output transmission box, a pair of spiral conveying rollers is arranged on an output shaft of the spiral conveying roller gearbox, and a double-layer cutting knife is arranged on an output shaft of the cutting knife gearbox. According to the cutting machine, the cutting efficiency and effect of the rape male parents are greatly improved, time and labor are saved, and the labor cost is reduced.