17results about How to "Reduce size requirements" patented technology

The application discloses a device and method for bending and deforming micro-nano samples in-situ in an electron microscope, and belongs to the field of scanning / transmission electron microscope accessories and micro-nano material mechanical property measurement research. The device comprises four parts, namely a supporting part, a driving part, a bending loading part and a sample stage part. One end of the nano material is fixed to a suspended part at the front end of the sample stage, and the other end is a free end. The free end of the nano material is pushed by the bending loading part driven by the heating and bending bimetallic strip, so that the nano material achieves the bending and deformation effect. The application separates and fixes the bimetallic strip and the sample, solves the problems of poor mechanical stability and easy movement of the sample in the deformation process of the in-situ bending nano material, improves the stability of the fixed sample and in-situ imaging, realizes the bending and deformation of the sample, and simultaneously observes the structural evolution of the material in the deformation process. While realizing the bending and deformation of single / multiple nano wire shafts, the structural evolution of the material in the deformation process is observed in-situ.

The utility model relates to a protective bottom pocket for construction of a bridge fabrication machine, which comprises a foldable bottom pocket and a protective cover, the middle unit comprises a positioning column and a middle bottom pocket, and the positioning column is connected with the middle bottom pocket and extends in the vertical direction; the folding unit comprises a tension cable, a positioning piece and a folding bottom pocket; one end of the tensioning cable is connected with the positioning column, the other end of the tensioning cable is connected with the folding bottom pocket, and the folding bottom pocket is hinged to the edge of the middle bottom pocket; the positioning piece is connected with the tensioning cable and the positioning column and is used for changing the inclination angle of the folding bottom pocket; the suspension beam is connected with the reverse hook beam through a suspension rod and located below the bottom die platform. The suspension beam extends along the longitudinal direction of the bridge body; the walking device is movably mounted on the suspension beam in the length direction of the suspension beam; and the lifting device is arranged on the walking device and is connected with the positioning column. According to the utility model, the overhead working amount is reduced, and the requirement on the size of a ground working platform is low.

The utility model relates to the stamping field discloses a kind of lateral material pressing mechanism of stamping die. Including lateral material presser and elastic reset piece, the elastic reset piece is opposite with lateral material presser and is used to make lateral material presser reset, lateral material presser is located above positive material presser and is slidably matched with positive material presser, lateral material presser is equipped with inclined wedge upper baffle, inclined wedge upper baffle extends along the sliding direction of lateral material presser, the lateral material presser is slidably matched with inclined wedge upper baffle. The lateral material pressing mechanism of stamping die in the utility model solves the problem that the weight of upper die holder is too large, resulting in high cost of stamping die.

The invention discloses a charger with a folding take-up mechanism, which comprises a first shell and a second shell, and an adjustable gap cavity is formed between the first shell and the second shell. A first metal insertion piece and a second metal insertion piece are installed on the first shell and the second shell in a folding mode respectively, and synchronous adjustment of the distance between the two metal insertion pieces is achieved by adjusting the distance between the gap cavities. And a rotating disc is rotationally mounted on the end surface of one side, far away from the first shell, of the second shell, is connected with a driving take-up mechanism arranged in the first shell and the second shell, and is used for carrying out take-up and pay-off operation on the power line in the rotating process and synchronously driving the first metal insertion sheet and the second metal insertion sheet to be opened or closed. The power line passes through the first housing and extends to the outside. Linkage control of take-up, insertion piece folding and insertion piece interval adjustment is realized through a single rotating disc, and the storage efficiency, the socket adaptability and the carrying convenience are improved while the structure is simplified.

The invention discloses a rotor suspension driving structure and method and a motor, and belongs to the technical field of magnetic suspension drive.The rotor suspension driving structure comprises a rotor suspension assembly and a rotor rotation driving assembly which are arranged on the two radial sides of a rotor, and working air gaps are formed between the rotor suspension assembly and the rotor rotation driving assembly and the rotor; the rotor is made of diamagnetic materials, the rotor suspension assembly below the rotor adopts a permanent magnet array and can be arranged in an Opposite or Halbach mode, passive and stable suspension support is provided for the rotor through magnetic repulsive force, the ratio of the suspension force to the gravity of the rotor is increased along with reduction of the scale, the miniature design of the bearing can be achieved, meanwhile, extra space is not occupied, and the bearing is more compact in structure and more compact in structure. And the size requirement of the motor can be further reduced.

The utility model discloses a multipurpose test field for agricultural technology development belongs to multipurpose test field technical field field, including test basin, the inside fixed cross bulkhead of test basin, and one side of cross bulkhead is inserted and is connected with no.

The utility model discloses a high-efficiency sectional type inner winding stator structure, which comprises an annular iron core formed by splicing a plurality of stator core blocks, each stator core block comprises an arc-shaped yoke and three tooth columns arranged at the inner arc edge of the arc-shaped yoke at intervals, and the tooth columns are strip bodies with the same width. The opening width of the tooth groove between every two adjacent tooth columns is larger than the width of the tooth columns. The stator core block is reasonable in structural design, the tooth columns are strip bodies with the equal width, and the width of the tooth groove opening is larger than that of the tooth columns, so that the problem that a large space is occupied by independent arrangement of silicon steel sheets when the stator core block is manufactured due to insufficient tooth groove width of a traditional split type module is effectively solved. When the silicon steel sheets are blanked and arranged, the tooth columns on the stator core blocks can be embedded into tooth groove gaps on other stator core blocks to be arranged in a staggered mode, the material utilization rate is remarkably improved, waste of excess materials is reduced, meanwhile, the requirement for the mold size is reduced, and the production cost is greatly reduced. And the whole structure is simple, splicing and winding are easy, and the winding efficiency and the slot fullness rate are effectively improved.

This invention discloses a rapid prediction method for the thermal conductivity of phenolic resin based on scanning electron microscopy (SEM) images. This invention requires only conventional SEM images, extracts structural parameters such as porosity, equivalent particle diameter, and bond ratio through automated image processing, and then inputs these structural parameters into a pre-trained machine learning surrogate model to achieve rapid prediction of the material's thermal conductivity. Compared with existing methods that require multi-scale 3D reconstruction and direct numerical solutions, this invention significantly reduces the requirements for sample size and characterization equipment, simplifies the modeling process, and achieves high computational efficiency. Furthermore, because the prediction model fully incorporates the influence of nanoscale pores and particle structure on thermal conductivity during the training phase, this invention can quickly provide the effective thermal conductivity of resin-based composite materials while maintaining high accuracy, providing an efficient and reliable means of evaluating thermal conductivity performance for material formulation design and process optimization.

The utility model belongs to ship loader technical field, concretely relates to a ship loader pitch rotation device, including support platform, be provided with the hinged support on support platform rotation, be provided with the cantilever frame on the hinged support hinged setting, the support platform is fixedly provided with the support frame, support frame top one side is provided with the steering device, the steering device includes the mounting seat and the goose head frame, be provided with the first pulley on the goose head frame, the goose head frame is hinged and is connected with the mounting seat, the mounting seat fixed connection support frame, be provided with the winding device on the support frame, the winding device is around and is provided with the steel wire, and the other end of steel wire passes through the first pulley after connecting cantilever frame far from the one end of hinged support. The utility model through setting up hinged cantilever frame swing when driving hinged support rotation, need not drive support frame rotation, simultaneously make the goose head frame of installing first pulley hinged installation, make it can swing with cantilever frame synchronization, guarantee cantilever frame angle adjustment smoothly.

The utility model provides a kind of foldable handheld fan, including fan unit, handle and rotating support.Handle extends along length direction, and inside has accommodating cavity.Rotating support one end is connected with fan unit, and the other end is rotatably connected with handle through hinging structure.In handheld mode, define a minimum circumscribed cuboid space defined by fan unit and handle together.Rotating support at least a part is overlapped with handle in length direction, to shorten the combined span of fan unit and handle in length direction.At least a part of hinging structure is offset outside accommodating cavity in thickness direction, and simultaneously located in minimum circumscribed cuboid space.The utility model realizes rotating support and handle length overlap and hinging structure convex by rotating support rear shift offset, under the premise of keeping compact appearance, effectively shorten handheld overall length and release handle internal space.

The utility model discloses an air spring positioning anti-rotation structure and air spring, air spring positioning anti-rotation structure includes the air spring upper seat, piston seat, the bearing of being connected between the air spring upper seat and piston seat and makes the air spring upper seat and piston seat rotate and connect, the air cock of being installed on the piston seat, air spring positioning anti-rotation structure still includes the limiting hole of being located on the air spring upper seat, the inside end portion is matched with the air cock and can be inserted on the air cock with the outside end portion and the limiting hole cooperation and can be located in the limiting hole in the fixed pin, can make the air spring upper seat positioning, prevent the air spring upper seat from rotating to other angle when assembling, and when the fixed pin is taken down, other structure that cooperates with the fixed pin will not interfere with the suspension peripheral piece, and the plug-in is convenient and reliable, will not be abnormal and fall off, also will not cause air spring function to be damaged because of the leakage.

The application discloses a Lissajous optical fiber scanner with a combined cylindrical body, which comprises a cylindrical body and an optical fiber, the cylindrical body is composed of a base body with an upper opening and a support plate for sealing the upper opening of the base body, and the part, connected with the base body, of the support plate and the base body form a cylindrical overlapping part. At least one of the left side and the right side of the barrel-shaped overlapping part is provided with a correspondingly matched electrode to drive the front end of the barrel-shaped body to vibrate left and right in the horizontal direction, and at least one of the upper side and the lower side of the barrel-shaped overlapping part is provided with a correspondingly matched electrode to drive the front end of the barrel-shaped body to vibrate in the vertical direction. The supporting plate enables the inherent frequency of the combination part formed by the cylindrical body and the optical fiber in the horizontal direction to be larger than the same-order inherent frequency of the combination part in the vertical direction. The Lissajous scanning working condition requirement is met by adjusting the appearance structure and / or size parameters of the supporting plate, so that the cylindrical body is low in machining difficulty, machining errors are easy to control, and the yield is high.

The application provides a chip aging circuit and electronic equipment, which are applied to a to-be-tested module. The chip aging circuit comprises a control module, a connecting module and an aging box. The control module is arranged outside the aging box and connected with the connecting module. The control module is used for controlling the to-be-tested module to enter an aging state through the connecting module. The connecting module is arranged on the side wall of the aging box. The connecting module is used for connecting the control module outside the aging box and the to-be-tested module inside the aging box. The chip aging circuit can simultaneously test multiple chips, thereby reducing the size requirement of the aging box. When the to-be-tested module is subjected to high-temperature aging, the normal work of the control module is not affected. The service life of the control module is prolonged, and the performance stability of the control module is improved.

The application relates to the technical field of wireless communication, and discloses a channel estimation method and device based on AI noise reduction and a computer device, the method comprising the following steps: extracting a demodulation reference signal from a received signal to perform least square channel estimation, obtaining an LS channel estimation matrix to calculate a phase offset between subcarriers and a common time offset index; generating a first phase compensation factor corresponding to each subcarrier based on the phase offset between the subcarriers, and generating a common second phase compensation factor based on the common time offset index; performing phase rotation compensation on the LS channel estimation matrix by using the first phase compensation factor and the second phase compensation factor, obtaining an input feature matrix from which the influence of time offset is removed, inputting the input feature matrix into a pre-trained AI noise reduction network model, and outputting a noise-reduced channel estimation matrix. The application can effectively separate noise and channel information in the received signal, significantly improve the anti-noise capability and precision of channel estimation, and ensure low calculation complexity and easy deployment.

A tissue cutting assembly and a fetching device relate to the field of medical devices, and comprise a sleeve, a first force transmission member and a plurality of cutting wires. The front ends of the multiple cutting wires are gathered, and the rear ends of the multiple cutting wires are all connected to the first force transmission piece. The first force transmission piece is slidably installed on the sleeve and used for driving the multiple cutting wires to stretch out of the front end of the sleeve or retract into the sleeve. And when the plurality of cutting wires extend out of the sleeve, the plurality of cutting wires are matched to define at least one cutting space. According to the structural design of the tissue cutting assembly, the tissue cutting assembly can be matched with an object taking bag, a target object can be cut up in the body, the size of the target object is reduced, the target object can be taken out through a natural channel of the human body, non-invasive surgery can be achieved, operation is convenient, and the infection risk is low.

The utility model discloses a wearable refrigeration device capable of being combined for use, which comprises a first refrigeration assembly and a second refrigeration assembly, the front and back of the upper part of a human body are cooled, and the left and right sides of the upper ends of the first refrigeration assembly and the second refrigeration assembly are respectively provided with a separable connecting device. The upper ends of the first refrigerating assembly and the second refrigerating assembly are movably connected, the connecting positions are located on the shoulders of the human body, and a first connecting device and a second connecting device are arranged on the left side and the right side of the lower end of the first refrigerating assembly respectively. A third connecting device and a fourth connecting device are arranged on the left side and the right side of the lower end of the second refrigerating assembly respectively, the first connecting device is movably connected with the third connecting device, and the second connecting device is movably connected with the fourth connecting device and used for binding the waist of the human body. On the premise of cooling the upper part of the human body in a large area, the size requirement of the device is reduced, in addition, the device can be independently used after being separated, the use scene is expanded, and more choices are provided for users.

The invention provides an emulsion explosive double-belt extrusion charging truck. The emulsion explosive double-belt extrusion charging truck comprises a truck body, a stock bin, a lifting mechanism, a rack, an upper belt assembly, a lower belt assembly and a cutting assembly. In this way, the lifting mechanism of the charging truck can achieve vertical height adjustment of the material extruding device, the material extruding device can be lifted to meet the requirement for high-position feeding during operation, the material extruding device can be lowered to be consistent with the whole truck in height during non-operation, and the size requirements for vehicle running and transition are met; the explosive cartridge is automatically scratched in the explosive cartridge conveying process through the cutting assembly, automatic explosive extrusion is achieved in cooperation with continuous oblique extrusion of the double belts, manual intervention is greatly reduced, the labor intensity of operators is lowered, the extrusion efficiency is improved, and waste materials such as coatings and buckles can be conveyed to a waste material opening along with the belts through a waste material outlet gap; the whole process is completely automatic, the structure is compact, and the mechanical operation advantage of the explosive loading truck is fully exerted.