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36results about How to "Solve the folding problem" patented technology

Rapid-folding crank for bicycle

The invention relates to the fast replicated branch of the bike including one fixed seat(8)and one mobile arm(1)and the end of the mobile arm connects the fixed seat, characterized in that the mobile arm has (the sliding cover3, the sliding block28, the dial33 and thelevel36) which can be joined to the fixed seat and the spring acting on the equipment fastening(18), if we rotate and press the winding meeting axis of the mobile arm downwards, the equipment fastening buttoned the fixed seat automatically; when we push or pull the equipment fastening ,the equipment fastening detaches from the fixed seat, the mobile arm can be folded rapidly and the footplate is in the direction of inner totally. The collapsing and buttoning the mobile arm needs just one second, the handling of the miry footplate by hand is avoided. There are some other merits: the handy handle, sanitation, good frame, briefness, the thickness of the bike replicated reducing to about third, taking, keeping, transporting and using easy. The invention applies the replicated bike, other force aiding vehicle and the common bike.
Owner:李政

Method for building three-dimensional human head triangular mesh model based on statistical shape analysis

InactiveCN103544733ASolve the folding problemFast and efficient dense correspondence3D modellingPoint cloudTransformation parameter
The invention discloses a method for building a three-dimensional human head triangular mesh model based on statistical shape analysis. The method comprises the steps that i, a training set is created; ii, template models are selected; iii, the template models are aligned at head point cloud models respectively to obtain corresponding homogeneous head triangular mesh models; iv, shape transformation parameters are calculated; v, a human head statistical model is built; vi, the three-dimensional human head triangular mesh model is obtained through shape coefficients and the human head statistical model; or iv, the human head statistical model and a regression model are built; v, the three-dimensional human head triangular mesh model is obtained through the human head statistical model and the regression model; or iv, a manifold interpolation method is adopted for the shape transformation parameters to obtain the three-dimensional human head triangular mesh model. A model shape is expressed through the triangle transformation parameters, the fact that parameter space is smooth manifold can be strictly proved with the expression, and the more accurate statistical model can be built through a manifold statistical analysis method.
Owner:BEIHANG UNIV

Eye pad packing device capable of preventing double-folding and stacking

The invention relates to the field of eye pads, in particular to an eye pad packing device capable of preventing double-folding and stacking. The invention solves the technical problem of providing aneye pad packing device capable of preventing double-folding and stacking. The eye pad packing device capable of preventing double-folding and stacking comprises an underbed, an unloading assembly, abagging assembly, a bag opening assembly, a cleaning assembly and a control screen, wherein the underbed is connected to the unloading assembly and is connected to the cleaning assembly, the upper side of the underbed is connected to the control screen, the unloading assembly is connected to the bagging assembly, the bagging assembly is connected to the cleaning assembly, and the bag opening assembly is connected to the cleaning assembly. When the eye pad packing device capable of preventing double-folding and stacking is used, a stack of spunlace cloth is separated one by one automatically, and three pieces of spunlace cloth with medicinal liquor are packaged simultaneously, a phenomenon that multiple spunlace cloth in one packaging bag exists is avoided, and meanwhile, the problem that the spunlace cloth is overlapped is solved, and therefore, the efficiency is improved greatly.
Owner:义乌市昕闵日用品有限公司

Bed cabinet

The invention discloses a bed cabinet, which comprises a bed body and a cabinet body, wherein the cabinet body comprises one box body or more and a box door corresponding to the box body; the bed bodycan be folded to be put into the box body. In addition, a sharing system is added on the basis of the bed cabinet. The problems of placement inconvenience, complicated lease process and low management efficiency of the movable bed can be solved.
Owner:贵州灏瑞科技有限公司

Intelligent desk capable of realizing space isolation and control system

InactiveCN107087901AEasy to manageSolve the problem of insufficient light sourceSchool benchesLight sourceEngineering
The invention discloses an intelligent desk capable of space isolation, which has the characteristics of simply isolating the space to create an independent environment without affecting the normal use at ordinary times, and solves the problems faced by existing students and teachers. Curtains and side curtains can help users to isolate space, create an independent space in the classroom, and provide an independent personal environment for rest, self-study or exams, and the retractable curtain is equipped with lighting equipment, which can solve the problem of insufficient light source during use The problem is that the present invention is equipped with a unified control terminal, which is convenient for teachers to manage in a unified manner. It also has a personal control cabin to meet the daily needs of individuals; the support rod of the lighting lamp is an X-shaped mechanism, and it is riveted by fastening bolts, which solves the problem of the lighting lamp cabin. Folding problem with retractable curtain into curtain storage bin.
Owner:张新晨

Die and method for manufacturing inner and outer pipe workpiece with separation ribs in middle through extrusion method

Disclosed are a die and method for manufacturing an inner and outer pipe workpiece with separation ribs in the middle through an extrusion method. The die comprises a male die body and a female die body which are vertically and coaxially arranged. The top end of the male die body is fixed to the lower portion of an upper die plate, and the female die body is fixed to the upper portion of a lower die plate. An ejector rod is arranged in a through hole in the middle of the lower die plate in a sliding manner. The convenient extrusion method is provided under the condition that the heights of an inner pipe, an outer pipe and separation ribs are different, and the die is novel and unique in design. The surface of a product is free of weld joints, and the die can adapt to places with high requirements for strength. The die is easy to machine and low in manufacturing cost. In the extrusion process, work stress is low, the tonnage of needed equipment is low, the die is not prone to being damaged, economical benefits are high, and cross sections of extrusion parts do not need to be consistent. Along with rapid development of the industry, the application range of the inner and outer pipe workpiece with the separation ribs of this kind is wider and wider, and the extrusion moulding method and the die structure have the great application prospect in industrial production.
Owner:ZHONGBEI UNIV +1

Pre-upset one-heating forming mold and pre-upset process

The invention discloses a pre-upset forming mold and a production process using the mold to pre-upset a flange. The pre-upset forming mold is composed of an upper mold flange provided with a stamping inner cavity, a lower mold flange, an upper mold plate, a lower mold plate and a compression bar provided with a compression head. The upper mold flange is fixed at the top of the upper mold plate through a screw, the upper mold plate is fixedly connected with the lower mold plate through the lower mold flange disposed at the bottom of the upper mold plate, and the compression bar is arranged in the stamping inner cavity. A stamping acting surface of the compression head is provided with an inwardly recessed part being recessed towards the inside of the compression head. The head (the contact position of the mold and bar stock during work) of the compression bar of the pre-upset mold is changed by adopting an inwardly recessed arc, square or rectangular design scheme to reserve storage space for the bar stock so that the bar stock cannot be cold too quickly when bearing the pressure under the action of radian small clearance of the compression bar. The pre-upset forming mold only needs one heating, and does not need secondary heating, thereby improving production efficiency and lowering production cost.
Owner:QINGTE GRP

Wing folding control instrument

The invention belongs to the technology of aircraft wing folding, and relates to a wing folding control instrument. The wing folding control instrument comprises a 24 V direct-current stabilized-voltage power supply, a three-position four-way electromagnetic directional valve, a two-position four-way electromagnetic directional valve and a stop valve, wherein the stop valve is connected with the 24 V direct-current stabilized-voltage power supply at the signal input end and connected with the two-position four-way electromagnetic directional valve through a control switch; and the two-position four-way electromagnetic directional valve is used for controlling a double-action actuating cylinder of an aircraft wing through the three-position four-way electromagnetic directional valve. The wing folding control instrument can be used for effectively controlling the motion state of the double-action actuating cylinder in the wing, is flexible and convenient to mount and simple to operate, and can reflect the wing folding frequency so as to solve the problem of wing folding control.
Owner:CHINA AIRPLANT STRENGTH RES INST

Forging and pressing method of steel rail heel and three-position molding die used thereby

The first purpose of the invention is to provide a forging and pressing method of steel rail heel; a steel rail heel comprises a pre-forging heel and a final forging heel; the pre-forging heel comprises a first section, a second section, and a third section; the final forging heel comprises a fourth section and a fifth section; the method specifically comprises the following steps: implementing a first stage forging and pressing after heating the first section, the second section and the third section, wherein the first two sections are molded by forging and pressing, the third section is pre-deformed; and implementing a second stage forging and pressing after heating the last three sections. The provided forging and pressing method adopts a measure of molding twice, thereby being able to solve the defect that the size of the molded final forging heel is unqualified, as well as greatly reducing the molding force in the entire steel rail heel product molding process. The second purpose of the invention is to provide a three-position molding die with a simple integral structure; a second upper die section inside a pre-forging rail molding cavity and a first pre-forging insert inside a final forging molding cavity are both in detachable structures, thereby meeting different requirements to the three-position molding die in the twice forging and pressing process; the three-position molding die is convenient to be assembled, and strong in practicability.
Owner:CHINA RAILWAY CONSTR HEAVY IND

Electric water ball toy gun

PendingCN111649619ASolve the length adjustment problemSolve the folding problemSpring gunsElectrical batteryEngineering
The invention discloses an electric water ball toy gun. The electric water ball toy gun comprises a cartridge receiver, an electric gearbox and a gun barrel, and further comprises a split ball supplytee joint, an upper ball supply type electric magazine, a fishbone expansion device, an overturning-closing cartridge receiver cover, a gunstock and an upper cover, wherein two ports of the split ballsupply tee joint are matched with the electric gearbox and the gun barrel respectively, the upper ball supply type electric magazine is matched with a third port of the split ball supply tee joint, the fishbone expansion device is assembled outside the gun barrel, the overturning-closing cartridge receiver cover is connected with the fishbone expansion device and is matched with the cartridge receiver, and the gunstock is provided with a core-supporting battery compartment; and the split ball supply tee joint comprises a base and an upper cover, wherein the base is provided with a transverselower half groove and a longitudinal ball supply channel communicating with the transverse lower half groove, the longitudinal ball supply channel is connected with the upper ball supply type electricmagazine, the upper cover is detachably connected with the base, a transverse upper half groove matched with the transverse lower half groove is formed in the upper cover, the transverse upper half groove and the transverse lower half groove are in butt joint to form a transverse ball supply channel, and the two ends of the transverse ball supply channel are connected with an inner tube of the gun barrel and a ball pushing nozzle of the electric gearbox respectively. The water ball toy gun can prevent refitting and is high in safety.
Owner:杭州泺神智能科技有限公司

Floor lamp device of automobile rearview mirror

ActiveCN112644366ASolve the folding problemTroubleshoot issues with deployment changesOptical signallingOptical viewingEngineeringMechanical engineering
The invention discloses a floor lamp device of an automobile rearview mirror, which is characterized in that the automobile rearview mirror is rotatably mounted on two sides of an automobile body, the automobile rearview mirror has a folded state and an unfolded state, each automobile rearview mirror is provided with a corresponding floor lamp device, and each floor lamp device of the automobile rearview mirror comprises a floor lamp and a telescopic mechanism, wherein the lamp is movably installed at an opening of an installation cavity of the automobile rearview mirror and used for providing illumination for a designated area on the ground. the telescopic mechanism is installed in the installation cavity, connected with the ground illuminating lamp and used for driving the ground illuminating lamp to act in the process that the automobile rearview mirror is switched between the folded state and the unfolded state so as to continuously provide illumination for a designated area on the ground. According to the floor lamp device of the automobile rearview mirror, the telescopic mechanism drives the floor lamp to act, so the illuminating area of the floor lamp is not changed in the process that the ground illuminating lamp is switched between a folding state and an unfolding state of the automobile rearview mirror; a problem that in the prior art, the illumination area of the floor lamp changes along with folding or unfolding of the automobile rearview mirror is solved.
Owner:恒大恒驰新能源汽车研究院(上海)有限公司

Cutting device for carton production

The invention relates to the technical field of cutting, and discloses a cutting device for carton production. The cutting device for carton production comprises an outer box, wherein two movable columns are fixedly installed on the inner bottom wall of the outer box; a movable groove is formed in each movable column; a movable block is movably installed in each movable groove; a movable rod is fixedly installed between the two movable blocks; a clamping groove is formed in the bottom of the movable rod; a cutting knife is arranged in the clamping groove; and cutting bottom plates located at the bottom of the cutting knife are fixedly installed at the opposite sides of the two movable columns. According to the cutting device for carton production, through arrangement for a baffle on a rotary shaft, the rotary shaft can be prevented from falling off from the baffle; and through arrangement for a fixing plate and a screw on a transmission ring, the transmission ring can be detached through adjusting the screw to replace the cutting knife, so that the problem that a carton is an integer during production and needs to be cut for being transported and folded during use, is effectively solved.
Owner:苏州奥卡新型材料有限公司

Floor light device for car rearview mirror

The invention discloses a ground light device for a car rearview mirror. The car rearview mirror is rotatably installed on both sides of the car body. The car rearview mirror has a folded state and an unfolded state. Each car rearview mirror is equipped with a corresponding The ground light device, the ground light device of the car rearview mirror includes: the ground light, which is movably installed at the opening of the installation cavity of the car rearview mirror, and is used to provide lighting for the designated area on the ground; the telescopic mechanism is installed in the installation cavity And it is connected with the floor lamp, which is used to continuously provide illumination for the designated area on the ground by driving the floor lamp to operate during the transition process of the rearview mirror of the car between the folded state and the unfolded state. The floor lamp device of the automobile rearview mirror drives the floor lamp to act through the telescopic mechanism so that the illumination area of ​​the floor lamp does not change during the conversion process between the folded state and the unfolded state of the automobile rearview mirror, It solves the problem in the prior art that the lighting area of ​​the floor lamp changes with the folding or unfolding of the rearview mirror of the car.
Owner:恒大恒驰新能源汽车研究院(上海)有限公司

Machining method for preventing rolled threads of TC4 titanium alloy material from generating folds

ActiveCN105964843AAvoid foldingGuaranteed arc R requirementsScrew-threads articlesTest requirementsScrew thread
The invention provides a machining method for preventing rolled threads of a TC4 titanium alloy material from generating folds. The method comprises following steps: previous preparation is carried out; thread lines are obtained through roll pressing; a product workblank is clamped on a thread roller; a heating coil is adjusted, and the heating length is determined; a product workblank outer circle is heated, rapid transferring is carried out, and thread rolling is carried out; the threads are subject to trial rolling; the thread rolling result is detected in a macro / micro manner; through strict control over the thread rolling process, the heating length, the thread rolling length segment temperature, consistency and uniformity of a color strip and metallographic inspection, whether the thread folds and tooth bottom circular arcs R are qualified or not is judged, qualification is tested through mechanical performance, and the problem that in the rolling molding technology, the folds exist on the TC4 high-strength titanium alloy bolt threads is solved; and through strict control over the steps, requirements of thread tooth tips and the tooth bottom circular arcs R are met, thread folding is avoided, and through tensile tests and fatigue tests, the test requirement of product mechanical performance is met.

A fan-shaped plate folding mechanism

The invention provides a fan-shaped plate folding mechanism, and belongs to the technical field of mechanism design. The lower part of the base is a flat quadrilateral plate frame structure with notches in the middle of each side shroud, the four corners of the flat quadrilateral plate-type frame are provided with a rotating shaft seat with a cube shape, a rotating shaft is arranged between that two oppose cubes, the upper part is a rectangular plate structure with a top plate, the motor output shaft passes through the base top plate and is connected with the upper end of the lead screw through a coupling, the lower part of the lead screw is provided with a special-shaped nut with a horizontal lug matched therewith, the horizontal lug of the special-shaped nut is hinged with the upper endof the connecting rod through a pin shaft, the lower end of the connecting rod is hinged with one end of the rocker through a pin shaft, the other end of the rocker is fixed with the middle part of the rotating shaft, and the end of the supporting rod is fixed with the end face of the rocker; The two opposing support rods are fixed to the middle and lower parts of the respective sector plates, theother two support rods are fixed to the central axis of the hinge, and the hinge is fixed to the adjacent sides of the two half-sector plates.
Owner:SOUTHWEST JIAOTONG UNIV

Feeding mechanism of rib collar automatic sewing machine

The invention discloses a feeding mechanism of a rib collar automatic sewing machine. The feeding mechanism comprises a machine frame, a material roll plate for placing a rib cloth roll, a vertical cloth pulling guide rod in the conveying direction of rib cloth, a cloth ejecting wheel assembly acting on the central line position of the pulled-out rib cloth, and a pulling cylinder assembly foldingthe edges of the two sides of the pulled-out rib cloth along the central position.
Owner:NINGBO SUPREME ELECTRONIC MASCH INC

Silencing window with reelable curtain

The invention discloses a silencing window with a reelable curtain. The silencing window comprises linkage strips, wherein the left sides of the upper ends of the linkage strips are provided with leftbumps; further, the right sides of the lower ends of the linkage strips are provided with right bumps which are centrosymmetric; the middles of the left bumps at the upper ends of the linkage stripsare all hinged with the middles of the left bumps at the lower ends of other linkage strips; the middles of the linkage strips are all provided with through holes; further, the mutually hinged linkagestrips are correspondingly arranged on the right sides of the mutually hinged linage strips; the through holes in the middles of the linkage strips on two sides are all connected through supporting columns; further, the middles of the supporting columns are provided with flat elbow pipes; the cross sections of the flat elbow pipes are L-shaped after being vertically mirrored; further, the sides,approaching boundary walls, of bent parts of the flat elbow pipes are provided with fixing holes; bearings are mounted in the fixing holes. According to the silencing window, the hinging is continuously carried out through fixing pins through using the linkage strips; the flat elbow pipes mounted on the linkage strips can be reeled or laid down along with the linkage strips, and the problem that the silencing window cannot be folded is solved.
Owner:DEQING JINGYING INFORMATION TECH CO LTD

Protein conformation prediction acceleration method based on virtual network mapping and cloud parallel computing

The invention discloses a protein conformation prediction acceleration method based on virtual network mapping and cloud parallel computing. The method comprises the following steps: converting a protein conformation prediction problem into a virtual network mapping problem; constructing a protein conformation prediction heuristic algorithm based on the mathematical model, and finally predicting the protein conformation by adopting cloud parallel computing. A protein folding direction coding string obtained by using a protein conformation prediction heuristic algorithm is used as a part of aninitial population, sub-population division is carried out on the population, and each sub-population independently completes a calculation process of a genetic algorithm on protein conformation on arespective processor. The protein conformations with the minimum free energy are exchanged among the sub-populations, genetic manipulation is further carried out, and the manipulation is stopped untila specified multiplication algebra is reached. According to the method, a mathematical model for predicting the protein conformation is established, and the protein conformation can be accurately andefficiently predicted by utilizing a heuristic and parallel genetic algorithm and combining a cloud parallel computing acceleration prediction protein structure.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

A fast corner positioning method in the process of free forging billet

The invention discloses a corner quick positioning method in a free forging blank manufacturing process. The method comprises the following steps that step 1, an annular blank subjected to chamberingis arranged vertically at first, and the highest portion of the blank is hammered once in the radial direction of the blank; step 2, the blank is rolled by 22.5 degrees along the outer circumference of the blank, and the highest portion of the blank is hammered once in the radial direction of the blank; step 3, the step 2 is repeatedly conducted for eight times in total; step 4, the blank is rolled by 30 degrees along the outer circumference of the blank, and the highest portion of the blank is hammered once in the radial direction of the blank; and step 5, the step 4 is repeatedly conducted for five times in total. Compared with the prior art, through the method, fixing points are not stamped during chambering, during drawing, a four-frame position is fixed by controlling the forging hammer stamping amount and the number of times, and the number of times of drawing feeding amount of each time of hammering, the problem that the surface of a forged part of a fan-shaped frame structure is folded due to stamping during forged part free forging is effectively solved, and the production efficiency is improved by about 20%; and a new technique process is provided for blank manufacturingof the forged part.
Owner:SHENYANG LIMING AERO-ENGINE GROUP CORPORATION

Mold and method for manufacturing inner and outer double pipe with ribs in the middle by extrusion method

Disclosed are a die and method for manufacturing an inner and outer pipe workpiece with separation ribs in the middle through an extrusion method. The die comprises a male die body and a female die body which are vertically and coaxially arranged. The top end of the male die body is fixed to the lower portion of an upper die plate, and the female die body is fixed to the upper portion of a lower die plate. An ejector rod is arranged in a through hole in the middle of the lower die plate in a sliding manner. The convenient extrusion method is provided under the condition that the heights of an inner pipe, an outer pipe and separation ribs are different, and the die is novel and unique in design. The surface of a product is free of weld joints, and the die can adapt to places with high requirements for strength. The die is easy to machine and low in manufacturing cost. In the extrusion process, work stress is low, the tonnage of needed equipment is low, the die is not prone to being damaged, economical benefits are high, and cross sections of extrusion parts do not need to be consistent. Along with rapid development of the industry, the application range of the inner and outer pipe workpiece with the separation ribs of this kind is wider and wider, and the extrusion moulding method and the die structure have the great application prospect in industrial production.
Owner:ZHONGBEI UNIV +1

Message transmission method and device

Provided are a message transmission method and device, which can be applied to scenes such as V2X, and wherein the method comprises: establishing a direct link connection between a first user equipment and a second user equipment; receiving a first message from the second user equipment by the first user equipment, wherein the first message comprises position information of the second user equipment; sending auxiliary information by the first user equipment according to the position information, wherein the auxiliary information is used for indicating resources. In the above process, the second user equipment carries the position information in the first message, and the first user equipment can judge whether to send the auxiliary information according to the position information, so that the sending frequency of the auxiliary information is reduced, unnecessary feedback of the auxiliary information is reduced, and the resource utilization rate is improved.
Owner:HUAWEI TECH CO LTD

Renewable light box cloth

In order to replace the conventional high-pollution light box made of nonrenewable materials such as polyvinyl chloride, polyester and the like, polypropylene or polyethylene long fibers are knitted into cloth by a rapier knitting machine or warp knitting machine; a polyethylene or polypropylene film is formed on the surface of the knitted cloth by laminating or heat sealing; the surface of light box cloth is treated by corona and a chemical reagent roller coating technology, so that the product can be used on solvent ink, environmental-friendly ink, ultraviolet (UV) ink digital inkjet printers; and the product is a 100 percent renewable low-carbon environmental-friendly product.
Owner:上海维新建材有限公司

Method for preventing strip steel from being folded in coiling area

The invention relates to a method for preventing strip steel from being folded in a coiling area. According to the technical scheme, a group of 10 kg purging water is added between an upstream coiling machine and a downstream coiling machine from a main collecting pipe through a hose; and the existing equipment is utilized, so that the modification cost is low, the structure is simple, and the realization is easy. The purging water is purged to the direction towards the downstream coiling machine; and through decomposition of force, the downward vertical force of 10 kg of purging water after decomposition is counteracted with the upward force of the end of strip steel, and the problem that the end of the strip steel is folded when the end of the strip steel is upwarped and coiled is solved. According to the method provided by the invention, a group of 10 kg purging water is added behind the upstream coiling machine; purging is performed in the direction towards the downstream coiling machine; when the ends of strip steel of different specifications pass through the area, pressure of the 10 kg purging water at different angles is borne, and is counteracted with upward impact force caused by passing through an opened and closed door; and the problem that the end of the strip steel is upwarped when the strip steel passes through the opened or closed door is effectively avoided.
Owner:SHANGHAI MEISHAN IRON & STEEL CO LTD
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