37results about How to "Avoid lowering" patented technology

The invention provides an electrode wire, a stimulator system and a computer readable storage medium, the electrode wire comprises a catheter, at least one electrode contact and a signal processing chip, each electrode contact is attached to the outer wall of the catheter, and each electrode contact is used for collecting a bio-electricity signal of a patient, and / or collecting the bio-electricity signal of the patient. Delivering electrical stimulation to the in vivo tissue of the patient according to the stimulation pulse signal; and the signal processing chip is arranged in the conduit. According to the invention, the signal processing chip is integrated in the electrode wire, so that the interference of external interference and stimulation pulse signals on bio-electricity signals is reduced.

The invention provides a fault detection system and a vehicle, the fault detection system comprises a plurality of conversion modules, a plurality of detection modules and a microcontroller, and each conversion module can output a corresponding electric signal based on the connection state of a low-voltage detection connector; the plurality of detection modules receive the electric signals and output corresponding detection signals based on the electric signals; and the microcontroller receives detection signals from the plurality of detection modules, and determines the on-off state of the high-voltage interlocking loop and the connection state of the plurality of low-voltage detection connectors based on the plurality of detection signals. According to the system, the connection state of the low-voltage detection connector can be converted into a high-low level detection signal which can be identified by the microcontroller, so that the microcontroller can accurately know the fault position and the on-off state of the high-voltage interlocking loop based on the detection signal, the detection and troubleshooting efficiency is improved, the detection reliability is relatively high, and the reliability is relatively high. The problem that the efficiency of eliminating faults of the high-voltage interlocking system is low is effectively solved, and certain safety is improved.

The utility model provides a construction device suitable for drilling machine operation on a slope. The construction device comprises a plurality of slope attaching beams tightly attached to the slope, two rotary supporting frames are arranged on the slope attaching beams, cross beams are arranged on the two supporting frames, the supporting frames are hung on the cross beams, a plurality of horizontal steel pipes connected end to end are arranged on the slope attaching beams, and two sliding rails are arranged on the cross beams. According to the whole device, a scaffold does not need to be installed on a slope, the problems that the bottom of the slope is trimmed to a certain degree, and a scaffold platform is large in work amount, long in construction period, high in investment and unsafe are solved, the angle between the two supporting frames can be adjusted through the whole device so that the supporting frames can adapt to slopes with different inclination angles, and in a high abrupt slope, the supporting frames can be conveniently adjusted. The small included angle between the supporting frames is adjusted to keep balance of the cross beam, so that the whole structure can be installed on a high and steep slope, the construction condition is met, the whole device can adapt to slopes with different gradients, the adaptability is high, and the large popularization value is achieved.

The present invention discloses a beak forming mechanism and a mold for producing air guide plates, which relate to the technical field of molds, and solve the technical problem that the beaks produced by the molds for producing air guide plates in the prior art have insufficient forming strength. The beak forming mechanism of the present invention includes a beak cooling assembly, which is located below the beak accommodating portion, and cools the beak contained in the beak accommodating portion by means of a coolant flowing through the beak cooling assembly. The beak forming mechanism of the present invention cools the beak by adding a beak cooling assembly, so that the beak can be cooled in time after the plastic is formed at high temperature, and the cooling effect on the beak is enhanced, and the strength of the beak is greater than 400N; the beak forming mechanism of the present invention cools the beak by adding a beak cooling assembly, which optimizes the molding quality and cycle of the beak, and avoids shrinkage of the beak and quality abnormalities such as insufficient strength.

According to the spraying dust removal device capable of leveling the land and used for the construction site, a first leveling mechanism and a second leveling mechanism are arranged, the ground is pressed through a pressing roller ring at the tail of a vehicle plate, vibration pressing boxes compact the two sides of the vehicle plate under the action of a vibration motor, and due to the fact that the two ends of the pressing roller ring and the two vibration pressing boxes are staggered in the range, the two sides of the vehicle plate are tightly pressed; therefore, the road surface can be fully leveled, dust in the air is mixed with water and falls on the ground under the action of the fog gun machine in the reciprocating motion process of the tricycle main body, the purpose of road leveling is achieved through the pressing and compacting action of the pressing roller ring and the vibration box, and the problems that an existing fog gun machine can only carry out dust falling treatment on raised dust, and the road surface cannot be leveled easily are effectively solved. The problems that the road cannot be leveled, dust on the road can be raised repeatedly when the engineering vehicle runs, and dust raising cannot be restrained are solved.

The utility model relates to the technical field of oxygen pipe storage, and discloses an oxygen pipe storage device which comprises a box body, a rotating disc is rotationally arranged in the box body, a rotating shaft is fixedly installed on the side wall of one side of the rotating disc, a spring is installed on the outer side of the rotating shaft, and the tail end of the spring is installed on the inner wall of the box body. A sleeve is fixedly mounted on the side wall of the other side of the box body, an oxygen pipeline is wound on the outer side of the sleeve, a tooth groove is formed in the outer wall of the tail end of the sleeve, and a penetrating hole and a moving hole are formed in the outer side of the box body; the movable hole is formed in the side wall of the box body, the movable rod, the spring and the limiting toothed plate are arranged in a matched mode, the tooth groove is formed in the outer wall of the sleeve, and the limiting toothed plate is matched with the tooth groove, so that the sleeve can be limited, it is guaranteed that the oxygen pipeline extends by a fixed length, and the oxygen pipeline is prevented from being shortened under the action of the spring; and the use effect of the oxygen pipeline is improved.

The special-shaped horse rod comprises an arc-shaped part arranged opposite to a forge piece and a positioning part connected to the other end of the arc-shaped part, on the section of a plumb bob, the positioning part is of a conical structure, the pointed cone end of the positioning part is far away from the arc-shaped part, and an inner ring groove is formed in the arc-shaped part of the special-shaped horse rod. A traditional cylindrical structure horse rod is changed, a section structure combining the arc shape and the inverted triangle shape is adopted, rotation of the horse rod can be limited, the horse rod does not rotate along with the forge piece, in other words, the expansion speed of the forge piece is low, and when the forge piece is of the same size, compared with a traditional reaming mode, the formed groove is deeper so as to be suitable for the small forge piece with the special-shaped inner diameter.

The invention discloses a pineapple fiber blended fabric and a preparation method thereof, and relates to the technical field of textile fabrics, the fabric material comprises pineapple fiber, bamboo fiber, cotton fiber and polyester fiber; blending forming of the fabric is achieved through raw material selection and pretreatment, a spinning process, a weaving process and a finishing process. During desizing and softening finishing, a softening agent is added, so that friction force among fibers is reduced, the hand feeling of the fabric is softer, meanwhile, abrasion of the fibers in the friction process is reduced, pilling on the surface of the fabric is avoided, and the service life of the fabric is prolonged; the fabric is dried at a certain temperature, so that the internal stress of the fabric is eliminated, the size stability of the fabric is improved, the condition that the fabric shrinks or loosens after being cleaned is avoided, and meanwhile, the breaking strength and the air permeability of the fabric are effectively improved.

The utility model relates to a structure for improving surface shrinkage of a rubber column, which comprises a panel and a stud, the stud is integrally connected to the top of the panel, a waist groove is arranged at the joint of the periphery of the bottom of the stud and the panel, the distance A from the bottom of the waist groove to the bottom surface of the panel is smaller than the thickness T of the panel, and A is smaller than or equal to 0.8 T. According to the scheme, the structural optimization scheme of the rubber column product is described, the surrounding waist groove is formed in the connecting position of the periphery of the bottom of the stud and the panel, the thickness of the waist groove is smaller than that of the panel, and therefore the effect of preventing shrinkage is achieved, and the improved structure has the effects of facilitating injection molding production and reducing the risk of product shrinkage.

The invention discloses a rapid and efficient low-temperature dyeing process for wool / cashmere, which reduces the dyeing temperature to 85-90 DEG C by controlling the temperature in the dyeing process, thereby reducing the energy consumption, protecting the fiber structure and reducing the damage to the wool / cashmere. In the temperature range, the dye can better permeate into wool / cashmere fibers, and a good dyeing effect is achieved. Compared with the traditional high-temperature dyeing process, the low-temperature dyeing process disclosed by the invention has the advantage that the dyeing time is remarkably shortened. Due to the adoption of low-temperature dyeing and the combination of special dyeing auxiliaries, the process can obviously improve the color fastness, especially the washing fastness and the rubbing fastness, so that the quality and the durability of a final product are improved. According to the invention, dyeing can be completed without adding other auxiliary agents in the dyeing process. The dye is wide in application range, and is suitable for all dyes for dyeing wool and cashmere, such as acid dyes, reactive dyes, neutral dyes and mordant dyes.

The utility model relates to the technical field of die-casting dies, in particular to a cross recess fine adjustment die-casting die which is characterized in that a cross recess is formed in the surface of a die frame, a fixed die core support is arranged in the cross recess, a fixed die core is arranged in the fixed die core support, and a fixed die core cavity is formed in the surface of the fixed die core; the movable mold core is arranged in the cross groove, and a movable mold core cavity is formed in the surface of the movable mold core; an insert pin fixing seat is arranged in the cross groove, and an insert pin is fixedly arranged on the surface of the insert pin fixing seat; by arranging the fixed mold core bracket capable of finely adjusting and moving, the position of the fixed mold core is driven to slightly move by moving the position of the fixed mold core bracket, so that the purpose of changing the position of an intersection point of an inner hole axis and an excircle axis of a workpiece is achieved, and the problem that the service life of the mold core is influenced by trimming the mold core is avoided.

The invention discloses a composite diaphragm, a preparation method thereof and a secondary battery. The composite diaphragm comprises a first layer and a second layer, the first layer is a mullite fiber layer, the second layer comprises a mixture, the mixture comprises a polymer and a compound, and the compound comprises a one-dimensional carbon material and polydopamine coating the surface of the one-dimensional carbon material. The composite diaphragm disclosed by the invention not only can restrain the problem of lithium dendrites, but also can protect an SEI (Solid Electrolyte Interphase) membrane, can also prevent the diaphragm from being reduced when a battery cell is in thermal runaway, and can also reduce the electrolyte infiltration time of the diaphragm.

A microfluidic impedance cytometer for determining the location of cells in a fluid carrying cells and measuring cell impedance, comprising: a microfluidic impedance flow channel for allowing the fluid to flow; an upstream portion; a downstream portion; the sensing area is used for receiving the fluid in the channel and sensing one or more parameters of the fluid, the sensing area comprises one or more sets of electrode pairs, each pair of electrodes forms a current path from an operating top electrode to an operating bottom electrode, each pair of electrodes is composed of an operating top electrode and an operating bottom electrode, and the operating top electrode and the operating bottom electrode form a current path from the operating top electrode to the operating bottom electrode. A potential is applied to the operation top electrode, the electrodes in each pair of electrodes are aligned in parallel and are symmetrical to each other, the top electrode of each pair of electrodes is applied with the same positive voltage, and the bottom electrode of each pair of electrodes is virtually grounded; and an amplifier structure.

The utility model relates to refrigeration and heating equipment technical field discloses a kind of sky fluorine hot water systems.The reversing valve group of the system is connected with compressor, and reversing valve group has first conduction state;One end of outdoor heat exchange module is connected with reversing valve group;One end of indoor heat exchange module and water module is connected with reversing valve group, and the other end is connected with the other end of outdoor heat exchange module through throttling module.In first conduction state, refrigerant discharged from compressor is divided into two ways, one way passes through reversing valve group and enters indoor heat exchange module, and the other way passes through reversing valve group and enters at least one outdoor heat exchange module;Refrigerant discharged from outdoor heat exchange module enters throttling module;Refrigerant discharged from throttling module and refrigerant discharged from indoor heat exchange module are sequentially returned to compressor through water module and reversing valve group.The utility model solves the problem that sky fluorine hot water system in prior art will reduce indoor temperature when executing defrosting function.

The utility model relates to the technical field of forestry fruits, in particular to a grafting knife for forestry fruit cultivation, which comprises a shell, a mounting plate fixedly connected to the front side of the shell, a push rod slidably connected in the mounting plate, a stop block fixedly connected to the front side of the push rod, a first pressure spring fixedly connected to the right side of the stop block, and a cover plate rotatably connected to the left side of the shell. A fixing assembly is arranged in the cover plate, and a plurality of containing grooves are formed in the left side of the cover plate. According to the grafting knife for forestry fruit cultivation, a cover plate is rotated, a clamping rod makes contact with the inner wall of a groove, the clamping rod is pushed to slide, a second pressure spring is extruded, the second pressure spring is reset to push the clamping rod to slide, the clamping rod and a push rod are clamped, and the cover plate is fixed; and a placing groove is formed, so that fingers can place the grafting film roll conveniently, and the grafting knife can be held more stably in the using process.

The utility model relates to the technical field of drinking water distillation and collection, in particular to a drinking water distillation and collection device which comprises a barrel body, a heater, a water collection shell, a cooling assembly and a drainage assembly, the heater is installed on the side face of the barrel and extends to the inner side of the barrel. The water collecting shell is arranged at the top end of the barrel and communicated with the barrel; the cooling assembly is arranged on the outer side of the water collecting shell and communicates with an external liquid conveying device. The drainage assembly is arranged at the bottom end of the cooling assembly and connected with the barrel, and the side face of the drainage assembly communicates with an external liquid storage device. When steam flows towards the inner side of the water collecting shell and exchanges heat with the water collecting shell, drinking water conveyed by the cooling assembly exchanges heat with the water collecting shell, so that water molecules in the steam are condensed on the inner wall of the water collecting shell and are discharged and collected, and meanwhile, the drinking water subjected to heat exchange is added to the bottom end of the inner side of the barrel through the drainage assembly; the water source on the inner side of the cylinder body is convenient to supplement, and the situation that the steam temperature is reduced in the cylinder body is avoided.

This invention belongs to the field of industrial gas detection and discloses a photoacoustic gas sensor employing a microphone array, and designs a T-type Helmholtz photoacoustic cell based on the microphone array. The TDHMA photoacoustic cell adds multiple resonant cavities to the traditional Helmholtz photoacoustic cell to form a multi-T structure. A MEMS microphone is installed at the end of each resonant cavity to detect the photoacoustic signal. Multiple in-phase and multiple out-of-phase signals generated by the TDHMA are superimposed using an additive circuit, and then the two superimposed PA signals are subtracted. Compared to the traditional Helmholtz photoacoustic cell, the TDHMA photoacoustic cell concentrates the sound pressure at the end of the resonant tube, generating a larger photoacoustic signal and exhibiting stronger noise suppression capabilities.

The utility model relates to the field of dyed yarn drying, and particularly discloses a vertical dyed yarn drying machine which comprises a drying box, a driving motor, a vertical plate and a drying device. The drying device is arranged on the drying box, a driving motor is arranged at the bottom of the drying box, a bottom plate is arranged at the bottom in the drying box, a shaft body is arranged on the driving motor, the shaft body penetrates through the bottom of the drying box to be fixedly connected with the bottom plate, an open groove is formed in the side face of the drying box, and a box inlet frame is arranged at the position of the open groove; the box inlet frame is provided with a frame plate, a connecting shaft is arranged between the frame plate and the box inlet frame, the connecting shaft is connected with the frame plate and the box inlet frame, the side face of the box inlet frame is provided with a frame lock, the frame lock is provided with a lock head, the lock head is arranged on the side face of the frame plate, and the vertical plate is arranged on the bottom plate; according to the vertical dyed yarn drying machine, dyed yarn is evenly dried, and the vertical dyed yarn drying machine can rotate and is convenient to take out and place.

The present invention relates to an energy storage heating control method, an energy storage system and a photovoltaic storage system. The energy storage system includes a controller and a plurality of battery packs connected in parallel. The battery pack includes: a cell pack, a temperature sensing module, a temperature control module and a BMS. Among them, the temperature sensing module is used to detect the temperature of the energy storage battery, the temperature control module is used to heat the energy storage battery, and the BMS is used to send a heating request and the SOC of the corresponding battery pack to the controller. The controller determines the number of battery packs that can turn on the temperature control module according to the difference between the DC bus voltage and the reference value of the charging voltage of the energy storage system, and determines the priority of the battery pack that turns on the temperature control module according to the SOC of the battery pack. The present invention makes full use of the power generation power of the photovoltaic array. Without affecting the normal power scheduling of the photovoltaic array, it not only avoids the waste of photovoltaic power generation power at low temperatures, but also avoids using the energy of the energy storage system itself to heat the battery pack.

This utility model relates to the field of toilet cleaning technology, and more particularly to a bent-head cleaning brush, including a handle, a brush head, and a bending portion; wherein, the brush head is connected to the handle through the bending portion so that the handle and the brush head form a preset angle; the bending portion has a first cavity, and the bending portion includes a detachably connected main body and a cover, with both ends of the main body connected to the handle and the brush head respectively; when the cover is connected to the main body, the main body and the cover form the first cavity. This application features ergonomic optimization in structure, making it convenient and comfortable to use. Furthermore, the detachable and cavity design reduces production costs, lowers production difficulty, and improves the structural stability of the finished product. In terms of cleaning function, the cleaning component works in conjunction with the main and auxiliary brush heads to improve cleaning efficiency and effectiveness, making it a toilet cleaning tool that performs well in terms of practicality, economy, and cleaning ability.

The invention relates to the technical field of lithium battery production, in particular to a battery cell liquid injection production line which comprises a battery cell feeding and detecting device, a liquid injection device, a liquid injection device, a liquid injection device and a liquid injection device, and is characterized in that the battery cell feeding and detecting device is used for feeding battery cells and removing unqualified battery cells; the flaring mechanism is used for flaring the battery cell; the liquid injection mechanism is used for injecting liquid into the battery cell; the vacuum packaging device is used for carrying out vacuumizing treatment and packaging treatment on the battery cell after liquid injection; the primary battery cell liquid injection weighing device is used for detecting the weight of the battery cell before liquid injection; the secondary battery cell liquid injection weighing device is used for detecting the weight of the battery cell after liquid injection; the battery cell tray loading and unloading device is used for carrying out tray loading and unloading treatment on the packaged battery cells; and the conveying device is used for sequentially conveying the battery cells from the battery cell feeding and detecting device to the primary battery cell liquid injection and weighing device, the flaring mechanism, the liquid injection mechanism, the vacuum packaging device, the secondary battery cell liquid injection and weighing device and the battery cell tray loading and discharging device. The liquid injection production line has the effect of improving the automation degree and the production efficiency of the liquid injection production line.

The invention relates to a mechanical seal assembly assembling system and a using method thereof, and belongs to the technical field of mechanical seal assembly.The system comprises a rotating disc type multi-station conveying mechanism, a movable ring feeding mechanism, a sealing ring assembling mechanism, a static ring feeding mechanism, a spring assembling mechanism, a press-fitting detection mechanism and a discharging mechanism, and the movable ring feeding mechanism, the sealing ring assembling mechanism, the static ring feeding mechanism, the spring assembling mechanism, the press-fitting detection mechanism and the discharging mechanism are sequentially arranged in the conveying direction. The sealing ring assembling mechanism comprises a bulging press-fitting assembly, a bulging head of the bulging press-fitting assembly is composed of a plurality of petals, a sealing ring can be evenly opened, an oil coating assembly can be selected, a press-fitting detection mechanism integrates a pressure sensor and a displacement sensor, a pressure-displacement curve is collected in real time through a controller and compared with a standard curve, and online full inspection of the assembling quality is achieved. According to the invention, full-automatic assembly and intelligent detection of the mechanical sealing assembly are realized, the damage to the sealing ring is effectively avoided, the assembly consistency and the product yield are improved, and a quality tracing function is achieved.

The utility model relates to the technical field of glasses production, in particular to a glasses frame trimming device for glasses production, which comprises an operation table, a movable dust removal mechanism for adjusting a polishing position is arranged on the operation table, and a fixing mechanism for stabilizing a glasses frame is arranged on the operation table. Through the arrangement of the movable dust removal mechanism, the edge grinding structure can be automatically moved in the edge cutting process of the mirror frame, the situation that a worker holds the mirror frame by hand to cut the edge of the mirror frame is avoided, the safety performance of edge cutting of the mirror frame is improved, generated chippings can be absorbed while edge cutting is conducted, and the production efficiency is improved. The fixing mechanism is arranged, the mirror frames with different sizes can be limited and fixed in the mirror frame edge cutting process, on one hand, the mirror frame edge cutting stability is improved, the mirror frame production quality is improved, on the other hand, the edge cutting structure is prevented from hurting the hands of workers, and the production efficiency is improved. And the trimming safety is enhanced.

This invention relates to a method for image classification and recognition of dragon fruit stem and leaf diseases based on an improved MSF-Net, belonging to the field of agricultural disease image recognition technology. Addressing the problems of existing methods' low discrimination between minor and similar diseases of dragon fruit stems and leaves, and the lack of specific adaptation for multi-scale feature fusion, this invention inputs stem and leaf images into an improved MSF-Net model, which includes parallel first and second feature extraction channels. The first feature extraction channel is composed of multiple cascaded multi-scale convolutional modules, containing convolutional branches of different sizes connected to CReLU activation layers. The second feature extraction channel is composed of multiple cascaded dilated multi-scale convolutional modules, containing convolutional branches with different dilation rates connected to CReLU activation layers. The output features of the two channels are concatenated along the channel dimensions to obtain a multi-scale fused feature map, which is then global average pooled and fed into a fully connected classification layer to output the disease category. This invention can enhance the ability to capture subtle lesions and differences in disease stages, and can be used for real-time disease identification and control in dragon fruit plantations.

The invention discloses a rapid crystal oscillator starting circuit and a starting method thereof, and relates to the technical field of rapid starting of crystal oscillator circuits, and the rapid crystal oscillator starting circuit comprises a preliminary establishment module which is used for establishing a crystal oscillator starting circuit, obtaining preliminary information of the crystal oscillator starting circuit, setting preset parameters, and obtaining preset data; the gain calculation and adjustment module is used for starting the crystal oscillator starting circuit, gaining the crystal oscillator circuit, obtaining real-time data in the gaining process, judging a gain state according to the real-time data, obtaining a judgment state, calculating a gain adjustment value and adjusting the gain data according to the gain adjustment value; and a stability judgment labeling module. According to the invention, the circuit is established, the preliminary information is acquired, the preset parameters are set, the circuit is started, the gain is adjusted, the gain time is controlled, the gain stability is judged, the gain interference data is adjusted, and whether readjustment is needed is judged, so that efficient, stable and accurate control of the crystal oscillator circuit is realized, and the stability of the crystal oscillator circuit in the starting process is ensured.

The intramedullary nail device comprises an intramedullary nail, the intramedullary nail comprises an intramedullary main nail, a first bone nail, a second bone nail and a dynamic screw, a first screw hole, a second screw hole and a third screw hole are formed in the top of the intramedullary main nail, the first bone nail penetrates through the first screw hole, the second bone nail penetrates through the second screw hole, and the dynamic screw penetrates through the third screw hole. The dynamic screw is arranged in the third screw hole in a penetrating mode, the first bone nail and the second bone nail are arranged in a crossed mode, and the tail of the first bone nail and the tail of the second bone nail abut against the dynamic screw. According to the technical scheme, the hip supporting device has the functions of inner side supporting and rotation prevention at the same time, can be stably fixed, avoids hip shortening, and is more stable and safer in use.

This application discloses a control method, a display device, and a storage medium. The control method is applied to the display device, which includes at least a first display area and a second display area. The first display area and the second display area are rotatable relative to a rotatable component. The control method includes: displaying a first call interface in the first display area and displaying a second call interface in the second display area; responding to a first operation command on a first position of the first display area, controlling the first call interface to switch from a first state to a second state, and controlling the second call interface to switch from a third state to a fourth state, wherein the first state and the fourth state indicate that the corresponding call interface is in a normal call state, and the second state and the third state indicate that the corresponding call interface is in a call hold state.

The utility model relates to the technical field of self -adhesive coiled material laying, concretely is a kind of self -adhesive coiled material automatic laying and compaction equipment, including compactor, the surface of compactor is equipped with material pole, the surface of compactor is fixedly installed and is used to heat the heating assembly of self -adhesive coiled material glue face, heating assembly is composed of gas cylinder, spray head, lighter, lighter is installed in the inside of spray head, gas cylinder is connected with spray head by pipeline, the surface of compactor is provided with cleaning device, cleaning device includes movable frame, movable frame and the inside slide connection of compactor, first rotating wheel is rotatably connected between movable frame and movable frame, second rotating wheel is rotatably connected between movable frame and movable frame. The utility model, by setting up cleaning device, can effectively clean the impurities on the surface of building, avoid the pasteability of self -adhesive coiled material to building to appear the condition of reduction because of the influence of impurities, and then improve the protective property of self -adhesive coiled material to building.

The present invention discloses a strength-constrained topological optimization design method for a shell-porous filling structure, comprising: discretizing the design domain using finite elements according to the characteristics of the design structure; introducing two sets of design variables to optimize the shell structure and the internal porous filling structure respectively; for static strength design problems, using a modified solid isotropic material interpolation model with a penalty factor to describe the elastic modulus and density of the material, and for dynamic strength design problems, using a modified polynomial interpolation model to describe the elastic modulus of the material; constructing a robust strength-constrained topological optimization model to solve the sensitivity of the objective function to the design variables; and using a moving asymptotic algorithm for optimization design. The present invention can simplify the design of porous structure material properties, which is conducive to reducing the difficulty of numerical implementation.

The invention discloses an automatic binding device for physical examination blood sampling in the technical field of nursing instruments, the automatic binding device comprises a bottom frame and a binding belt, supporting plates are fixedly connected to the positions, close to the front portion and the rear portion, of the bottom frame, and a certain distance is formed between the two supporting plates; the middle positions between the two supporting plates are jointly connected with a positioning piece in a sliding manner; according to the invention, through multi-point positioning of the placing space by the first strap and the two second straps, the placing space cannot be distorted and misplaced under the characteristics of easy bending and easy winding after being formed, so that misplacement caused by the fact that the strap binds an arm along with gradual reduction of the placing space during subsequent blood sampling is avoided; and in the process of reducing the placing space, the two second binding belts continuously displace in the process of being in contact with the binding belt so as to adapt to the reduction of the placing space.