41results about How to "In line with the principles of mechanics" patented technology

The invention provides a unilateral two-arm adjustable two-way dual-power bone lengthening pressurized locking external fixator and belongs to the technical field of bone treatment instruments. The external fixator aims at solving the problem of limb shortening caused by lower limb thighbone large-segment splintered fracture long treatment concurrent large-segment bone defects. The external fixator comprises two or three or four steel nail splint linked clamps arranged between a main arm threaded rod and an auxiliary arm threaded rod side by side. The positions of upper steel nail splints and lower steel nail splints of the steel nail splint linked clamps on vertical adjustment threaded rods are adjusted through nuts. Upper end holes of connecting plates are connected with the auxiliary arm threaded rod, the positions of the connecting plates on the auxiliary arm threaded rod are adjusted through nuts on the two sides, lower end holes of the connecting plates are connected with the vertical adjustment threaded rods, chutes are formed in the main arm threaded rod, and convex plates are in sliding fit with the chutes. A power nut is arranged between every two adjacent convex plates. The positions of the convex plates on the main arm threaded rod are adjusted through the power nuts. The convex plates are fixed to the main arm threaded rod through screws after the positions are adjusted. The external fixator is mainly used for bone injury treatment.

The invention relates to a composite air cushion type air cylinder buffering energy absorber which comprises an air cylinder, a primary buffering piston body and a universal conducting collision steel ball, wherein the air cylinder is fixed on a collision stress support seat. The rear end of the primary buffering piston body is arranged in the air cylinder, and the front end thereof extends out of the air cylinder. The universal conducting collision steel ball is arranged at the end part of the front end of the primary buffering piston body. Both sides of the primary buffering piston body are respectively provided with a primary piston reset spring. The bottom of the air cylinder is provided with a reset air valve. The primary buffering piston body, the universal conducting collision steel ball and the primary piston reset spring form a stress part, and the air cylinder provided with the reset air valve and the collision stress support seat form a buffering part. By extending the contact time of the rigid mechanical collision, the rigid mechanical collision is converted into flexible speed-reducing and energy-absorbing collision which uses air as a collision interface, thereby reducing the degree of damage cased by the mechanical collision accidents.

The invention relates to individual body building devices and in particular relates to an amusement body building instrument which is driven by pedals and can jump up and down, mainly solving the problems that current body building instruments are single in exercise form and can not arouse the interest of the user in body building. The bouncing vehicle is mainly composed of a front arm, a back arm, a front pull rod, forming a diamond plane link structure; a front wheel and a back wheel which are capable of unidirectional rotation are respectively arranged on the extension lines below the front arm and the back arm; a storage compression spring is arranged between the pivot joint of the front arm and the back arm and the pivot joint of the front pull rod and the back pull rod; the amusement body building instrument is further provided with indispensable components such as a steering rod and a brake. When the bouncing vehicle is in use, the movement of the user forms unidirectional pulse in the horizontal direction, which greatly increases the interest of the user in body building. The bouncing vehicle is particularly suitable for adolescent for body building.

The invention discloses a reverse triangular pipe truss, which comprises a steel structure truss, shuttle-shaped steel pipe posts (1), concrete embedded element shear keys (2) and concrete embedded elements, wherein the shuttle-shaped steel pipe posts (1) are used for supporting the steel structure truss; the steel structure truss is formed by welding a plurality of pipe trusses; the pipe trusses forming the steel structure truss comprise a plurality of mutually parallel pipe trusses A (3) arranged in the longitudinal direction and a plurality of pipe trusses B (4) arranged in the transverse direction; the upper end of each shuttle-shaped steel pipe post (1) is connected with a connecting part of the corresponding pipe truss A (3) and the corresponding pipe truss B (4), and the lower end of each shuttle-shaped steel pipe post (1) is connected with the corresponding concrete embedded element shear key (2); and each shuttle-shaped steel pipe post (1) is inclined towards the inner side of the steel structure truss. The invention also discloses a construction method of the reverse triangular pipe truss. The reverse triangular pipe truss and the construction method of the reverse triangular pipe truss have the beneficial effects that a large-span great-height space system can be formed; the shuttle-shaped steel pipe posts are used, so that the stability is high; the building appearance is elegant; and the whole body is light, ingenious, graceful, attractive and elegant.

The invention discloses a patella inferior pole fracture internal fixing device and a screw fixing method, the patella inferior pole fracture internal fixing device comprises an arc-shaped fixing plate, the arc-shaped fixing plate is attached to a patella; effectively wraps and fixes the subpatellar comminuted fracture block and limits the displacement of the subpatellar comminuted fracture block,and meanwhile, tightly contacts the patella body with the subpatellar comminuted fracture block and pressurizes and fixes the patellar body; the locking between the screw and the steel plate can effectively improve the pull-out resistance of the screw, so that the stability of the fracture block and the internal fixation device is further enhanced, and the looseness and failure of internal fixation are reduced; besides, suture tension reduction protection can be achieved, suture tension reduction stress and patellar ligament traction fracture block stress are kept in dynamic balance, fractureblock displacement or internal fixation failure during early knee bending movement is effectively avoided, meanwhile, damage interference to patellar tendons can be relieved, the tension band principle is considered, the mechanical principle is better met. And a more effective internal fixation choice is provided for treating patella inferior pole fracture, especially comminuted patella inferiorpole fracture.

The invention discloses a rotationally adjustable domestic old people rehabilitation bed, comprising a bed body, wherein bed legs are arranged on the bed body, a bedside board is arranged on a bedside, and armrest frames are arranged at two sides of the bed body; a lifting board is arranged at the bedside of the bed body; an overturning mounting board is arranged at the tailstock of the bed body by a spindle, while a built-in chute is arranged at the middle position of one end face of the overturning mounting board. When the device is used, the old people stretch the feet into a pedal to simulate the action of riding a bike so as to effectively exercise the leg muscles of the old people and perform muscle strength training, and due to the arrangement of the overturning mounting board, whenmuscle training is needed, the side mounted with the pedal is overturned, and when muscle training is not needed, the overturning mounting board can be overturned, the pedal is overturned to be belowthe bed board, while the overturning mounting board and the bed body form a whole body to be used as a bed for normal rest of the old people.

The invention discloses a ship mooring hole plate comprising a longitudinal web plate (1), a transverse web plate (2), a cover plate (3) and a transverse plate (4). The longitudinal web plate (1) and the transverse web plate (2) are crossly welded, the cover plate (3) is mounted on the longitudinal web plate (1), and the transverse plate (4) is mounted on the transverse web plate (2). The ship mooring hole plate has the advantages that mooring cost is reduced, cable using efficiency is improved and working difficulty is lowered.

This is a method it decorate the face of equipment in anticipation on reinforced concrete components. Its steps are: First according to the dig dimensions, cut and process the decorative materials; and glue them together with cohesive material to make structure frame. Second pouring cement slurry into this frame to make reinforced concrete component, and before the above cement components concretion, to glue the surface decorative materials on their surfaces with the cement slurry.

The invention belongs to the technical field of automobile part tools, and particularly relates to a spherical shell for an automobile. The spherical shell for the automobile comprises a plate, the front of the plate is a triangle in triangular circular arc transition, three cylindrical through holes are formed in the three angles of the plate, and the cylindrical through holes are concentric with circular arcs on the three angles of the plate respectively. A strip arc-shaped protrusion is arranged in the middle of the third side of the plate and concentric with the circular section of a cylinder, a through hole is formed in the central axis of the cylinder, and an annular groove is formed in the middle of the outer side wall of the cylinder. The spherical shell is simple in structure, the stress to which the spherical shell for the automobile is subjected can be well reduced, use intensity can be greatly enhanced, and the service life of the spherical shell is prolonged.

The invention discloses a binary compatible solar water heater system with a brand new framework. The entire system comprises a heat collector, a heat storage water tank, a temperature control valve, a water level control valve, an automatic switching valve and a manual switching valve; when anti-freezing and exhausting functions are realized, the entire system further comprises a respiration valve or a self-restoration one-way valve and a pipeline for connecting all components, so that upper and lower water paths can be switched automatically; serial connection and replacement heat exchange methods are adopted for the heat collector and the heat storage water tank, so that the heat storage water tank in an integral solar water heater is easily positioned below the heat collector; in a split non-pressure-bearing solar water heater, the horizontal distance between the heat collector and the heat storage water tank is prolonged; and moreover, the water temperature of the heat storage water tank is definite regardless of an all-in-one machine or a split machine. In the entire system, a fully-mechanical structure and a single pipe are adopted for feeding and discharging water, so that automatic control over water feeding, automatic control over water discharging, automatic control over emptying and zero power consumption are realized. The binary compatible solar water heater system has the advantages of very simple overall framework, low cost, high performance cost ratio and good social benefit and economic benefit.

The invention belongs to the technical field of automobile part appliances, and particularly relates to an automobile spherical shell. The invention discloses the automobile spherical shell. The automobile spherical shell comprises a ball head and ball handles, wherein the ball head is a cylinder of which one side part is outwards protuberant in a curved manner, a sunk structure which is formed in the ball head penetrates through an upper end surface and a lower end surface of the ball head in a communicating manner, and the sunk structure comprises an upper hole, a middle hole and a lower hole; one ends of the ball handles are fixedly connected with the upper part of one side of the ball head, rabbets are formed in one end, near the ball head on the ball handles, the rabbets are located on the upper sides and the lower sides of the ball handles, the rabbets and the ball handles are in arc transition, the rabbets and the ball head are in the arc transition, and the other ends of the ball handles are gradually shrunk in a ladder manner. The automobile spherical shell disclosed by the invention is reasonable in structure, and the use time can be prolonged.

The invention discloses a material distributing trolley assembly of a building block forming machine. The material distributing trolley assembly of the building block forming machine comprises a material distributing trolley and an advancing and retreating buffering mechanism. The material distributing trolley comprises a material distributing trolley frame, a push-and-pull oil cylinder, a guide rail frame and a material distributing frame. The material distributing trolley frame is arranged on a machine frame rail of the building block forming machine. The material distributing trolley frame is provided with a partition plate, and the material distributing trolley frame is divided into a material distributing area and a push-and-pull work area. The push-and-pull oil cylinder and the guide rail frame are erected in the push-and-pull work area. A piston rod of the push-and-pull oil cylinder is connected with the guide rail frame. The push-and-pull work area is provided with a guide wheel assembly corresponding to the guide rail frame. The partition plate is provided with through holes, and the ends of the guide rail frame penetrate through the partition plate through the through holes. The material distributing frame is arranged in the material distributing area and is connected to the ends, penetrating through the partition plate, of the guide rail frame. The push-and-pull oil cylinder pushes and pulls the guide rail frame to drive the material distributing frame to move in a reciprocating manner. The advancing and retreating buffering mechanism is erected on the machine frame of the building block forming machine and connected with the material distributing trolley frame. When the material distributing trolley assembly of the structure distributes materials, reciprocating motion of the whole trolley is not needed, and only the material distributing frame needs to conduct reciprocating motion to distribute the materials; and the material distributing trolley assembly is reasonable in mechanical structure, rapid in material distribution and convenient to maintain.

The invention belongs to the technical field of reverse type centripetal hydroelectric generation devices which are high in rotating force and low in noise, and discloses an electromagnetic shaftlessreverse type centripetal vortex-blade hydroelectric generator. The electromagnetic shaftless reverse type centripetal vortex-blade hydroelectric generator is provided with a generator body and a hydraulic machine rotary cylinder which are integrated. A reverse type centripetal continuous long strip-shaped shaftless vortex blade channel which zigzags periodically is formed in the hydraulic machinerotary cylinder. The radius of the outer edge of a continuous long strip-shaped shaftless vortex blade is unchanged, the inclination angle of the blade is gradually changed topologically from 45 degrees to 90 degrees, the screw pitch of the blade is increased gradually, and the space of the continuous long strip-shaped shaftless vortex blade channel is gradually increased. By adoption of the electromagnetic shaftless reverse type centripetal vortex-blade hydroelectric generator, the defects that a centrifugal impeller unit of a traditional hydraulic machine is sheet, cannot work continuously and is small in acceleration force, the impact force between a blade and a water body is large, the resistance is large, the noise is high, and the generation power is low are overcome; and the electromagnetic shaftless reverse type centripetal vortex-blade hydroelectric generator has the advantages of extremely high rotating force, high power generation capacity, low noise, safety, stable operating, compact and reasonable structure, remote control and the like.