2017results about How to "Small structure size" patented technology

A surgical manipulation instrument which is particularly suitable for minimal invasive surgery, comprising an extra-corporeal drive device and a partial intra-corporeal manipulator part. The drive device comprises several axially displaceable first actuation elements. The first actuation elements are detachably connected to axially displaceable second actuation elements, by a coupling device, the second actuation elements being used to actuate an end effector. The coupling device comprises two coupling elements, one of the coupling elements having undercut recesses in which the second coupling element engages.

The invention belongs to agricultural seeding machinery, and in particular relates to a permanent-magnet magnetic-attraction precision seeding device. A semi-open type seed box is arranged on the side of a roller; the roller is fixedly connected with a transmission shaft and follows the transmission shaft to rotate in the single direction; the upper edge of the wall of the roller is uniformly provided with a plurality of through holes in the circumferential direction; a permanent-magnet magnetic attraction head, a magnetic-attraction-head jacket, a magnetic-attraction-head cover plate and a pressure spring are arranged in each through hole; one end of the permanent-magnet magnetic attraction head is arranged in the magnetic-attraction-head jacket, and the other end of the permanent-magnet magnetic attraction head passes through a center hole of the magnetic-attraction-head cover plate but does not exceed the upper surface of the magnetic-attraction-head cover plate; the pressure spring is positioned between the magnetic-attraction-head jacket and the cover plate; a cylindrical cam is hollowly sleeved on the transmission shaft and is fixed; the outline of the cylindrical cam consists of a circular arc surface and a platform surface; and the platform surface is partially arranged on the lower part of the cam. The seeding device has the advantages of improving the magnetic attractive force of the magnetic attraction head, reducing the content of iron powder needed by magnetic-powder coatings of seeds, reducing the structure size of seeding elements and conveniently realizing the automatic seed-taking function and automatic seeding function of the magnetic attraction head.

A jointed bar lock having a lock body and a jointed bar hoop which has a first end and a second end, said first end being permanently connected to the lock body and said second end being connectable to the lock body at a latching region of the lock body, with a bolt provided at the lock body selectively being movable into a latched position in which the bolt engages it the second end of the jointed bar hoop when it is connected to the lock body or is movable into a release position in which the second end of the jointed bar hoop is released for a removal from the lock body. The lock has an actuation device which is coupled to the bolt via a connection section and by which the bolt is movable from the latched position, into which the bolt is biased, into the release position. The lock body accommodates a combination locking mechanism to selectively block or release the bolt. The actuation device is arranged disposed opposite the combination locking mechanism with respect to the latching region of the lock body.

The present invention relates to continuous combustion constant power engine. There are one independent continuous combustor outside the cylinder, two sets of link rod-piston mechanisms with gas compressing device and expansion device, and one gas exchange valve for connecting these two mechanisms to the continuous combustor, to constitute one complete thermal engine. The present invention can reach ideal low temperature multiple fuel clean combustion with less noise, no smoke and no combustion detonation, and has raised compression ratio, raised expansion ratio, high heat efficiency, and reduced exhaust of harmful gas. The independent combustor of the present invention can realize fast ignition and self starting without compression and in the condition of low temperature.

The invention relates to an AGV (Automatic Guided Vehicle) for a multiple-wheel train heavy load mobile robot. The AGV comprises a frame, wheels, an electric control device, a floating spring structure frame, a driving device and a steering device; the electric control device is electrically connected with the driving device and the steering device; the wheels are divided into driving wheels and supporting wheels; the driving wheels are coaxially connected with the driving device and are horizontally and lengthwise connected with the steering device; the floating spring structure frame is arranged between the wheels and the frame and is connected with a wheel assembly support; and the wheels are arranged on the wheel assembly support and have the effect of buffering and uniform loading. The AGV adopts a multi-wheel train full floating multi-drive chassis structure so that the generality of the driving wheels is increased; the structure size of the driving wheels is reduced, thereby reducing the production cost; and the AGV has good stability and meets the using requirements of heavy loading and multiple road surfaces.

The invention relates to a mounting arrangement for optical devices having a mounting plate forming an undercut guide for receiving a clamping plate, the mounting plate comprising a side bar in which an undercut profile groove is formed, and having a strip located opposite the bar movably connected to the mounting plate via a clamping mechanism and a second undercut profile groove forming the undercut guide together with the first undercut profile groove, the strip being able to be tightened against the mounting plate by the clamping mechanism to fix the clamping plate, whereby the spacing distance between the undercut profile grooves is reduced. A second undercut guide is formed by additional undercut profile grooves in the same side bar of the mounting plate and the same strip, wherein the guides are both disposed on one side of the plane (X) spanned by the mounting plate.

The invention discloses a double-rotating circularly polarized antenna which can meet with the using requirements of broadband miniaturization communication equipment, comprising an upper-layer radiation paster 1, a lower-layer radiation paster 2, a floor 3 with coupling gaps, a feed network 4, a dielectric substrate 5, a medium screw 6 and a base 7, wherein the upper-layer radiation paster 1 adopts medium coupled feeding; the lower-layer radiation paster 2 adopts floor 3 coupled feeding with the coupling gaps; the dielectric substrate 5 is used for supporting the gap between the upper-layer radiation paster 1 and the lower-layer radiation paster 2 as well as the gap between the lower-layer radiation paster 2 and the floor 3; and the feed network 4 is located below the floor 3 and adopts a strip line form. Double-tuning characteristic is formed by medium coupled feeding so as to further broaden the antenna impedance bandwidth and axial ratio bandwidth; and caliber utilization is improved in a limited space. Simultaneously, the bandwidth of the antenna is effectively broadened and the structural size of the antenna is reduced through H-shaped gap medium coupled feeding.

A clamp terminal for connecting electrical conductors, which can be produced in a manner that reduces the structural size and optimizes costs. For this purpose, the clamp terminal includes two pieces of spring steel sheet, i.e., a spring steel sheet for the support plate and a spring steel sheet for the leaf spring, which are spot-welded in their head regions. The spring steel sheet for the support plate possesses in its foot region an uptake locking profile, in which, preferably, a round conductive core rod is engaged. Leaf spring tabs are formed from the spring steel sheet for the leaf spring, whose tab ends, together with the conductive core rod, form clamping sites for connecting the electrical conductors.

The invention relates to a high-temperature Fabry-Perot composite micro / nano fiber temperature and pressure sensor, and belongs to the technical field of fiber sensors. The sensor comprises a fiber access segment, a pressure sensor segment and a temperature sensor segment, wherein the fiber access segment includes a solid fiber, the pressure sensor includes a hollow thin-wall fiber, and the temperature sensor includes another solid fiber. Cylindrical holes are formed in the end portions of the two solid fibers respectively in a femtosecond second processing method, and then welded to form an FP interference type pressure cavity, one fiber serves as the fiber access segment, the other fiber is cut and ground to the solid fiber of certain thickness, a temperature sensor is thus formed, and the difference between the cavities lengths of the temperature sensor and the pressure sensor is controlled to decouple double-parameter measurement. Compared with the prior art, the sensor of the invention is small in structural size, resistant to high temperature, capable of measure the temperature and pressure at the same time, and free of cross sensitivity of the two parameters.

Device and method for generating brief strong current pulses in a coil for generating magnetic field pulses which according to the electromagnetic induction principle induce stimulation currents in the body tissue triggering an action potential of the nerve and / or muscle cells, where the coil is positionable close to the body tissue to be stimulated so that its magnetic field passes through the body tissue, and where the device comprises a power generating unit that can generate a freely selectable temporal course of the current through the coil during the current pulse. A method for determining an optimized temporal course of a brief strong current pulse through the coil, where the temporal course of the current pulse is calculated using a method which numerically simulates the electrical behavior of nerve and / or muscle cells and the coil and optimizes the course of the current pulse regarding at least one parameter, or which by means of stimulating the nerve and / or muscle cells with predetermined current pulses optimizes the temporal course of the current pulse regarding at least one parameter and therefrom determines essential parameters of nerve and / or muscle cells.

An apparatus for metering a urea or a urea-water solution for delivery to a catalytic converter assembly for removing nitrogen oxides from the exhaust gases of a Diesel engine, includes a housing block supporting function components communicating via a line, formed by recesses in the housing block, for transporting the reducing agent, and the walls of the line are formed by the housing block. This apparatus assures a simple line layout for reducing agent with a minimum number of sealing points that is accordingly appropriate for large-scale mass production.

The invention relates to a stick-slip inertia based serial three-degree-of-freedom piezoelectric precision driving platform and the linear motion along the x and y direction and the rotating motion around the z axis direction can be implemented. The stick-slip inertia based serial three-degree-of-freedom piezoelectric precision driving platform comprises a lower layer of x axis linear driver assembly, a middle layer of y axis linear driver assembly and an upper layer of z axis rotating driver assembly which are connected in turn and sawtooth waves are input towards piezoelectric stacks based on the stick-slip inertia principle to implement the stepping type continuous feeding of an output terminal. The symmetry and the frequency of the sawtooth waves are changed to change the feeding direction and speed. The positioning motion of the rapid feeding positioning and the precise feed positioning can be implemented through different modes of control on the piezoelectric stacks and accordingly the rapid and high precision positioning can be obtained simultaneously. The stick-slip inertia based serial three-degree-of-freedom piezoelectric precision driving platform has the advantages of being small and compact in structure, large in output stroke, adjustable in speed, large in bearing capacity, stable and reliable in work, good in repeatability and suitable for large stroke of precision motion control occasions with strict space size constraints.

A collapsible power-driven table stand includes a supporting body of an elongated shape, a first stand having a first driving member and a plurality of first extendable rods driven by the first driving member to move axially relative to each other and a second stand having a second driving member and a plurality of second extendable rods driven by the second driving member to move axially relative to each other. The first diving member is pivotally attached to one end of the supporting body and the second diving member is also pivotally attached to another end of the supporting body in order to allow both the first and second stands to extend / collapse relative to the supporting body. Accordingly, the assembly of the collapsible power-driven table is simplified and the overall size thereof is reduced.

The invention discloses an under-actuated picking tail end executing device and an under-actuated picking tail end executing method. The device comprises a hand executing mechanism, a driving mechanism and a support seat assembly, wherein the hand executing mechanism is connected with the driving mechanism through the support seat assembly, the hand executing mechanism is of a three-claw type structure, three claws are uniformly distributed on the edge of the outer periphery of a palm, the bottom of each claw is arranged on the palm through corresponding hinging assemblies, the middle of each claw is provided with a pulley, each pulley is connected with the palm through a steel wire rope, and the bottom of the palm is connected with the driving mechanism through a press block. According to the method, a wire winding tube rotates for winding the steel wire rope, the steel wire rope drives the claws to approach to fruits and to tightly clamp the fruits, after the fruits are tightly clamped, the wire winding tube drives the fruits, the claws and the palm to simultaneously rotate relative to a motor support seat, and the torsion fruit separation is realized. The device and the method provided by the invention have the advantages that the under-actuated principle is applied, the effects of tightly clamping the fruits at first and then realizing the torsion fruit separation are realized, the control of the whole work process is simple, the efficiency is high, meanwhile, the clamping force of the claws on the fruits can be preferably controlled, and the fruit damage phenomenon is avoided.