1927results about How to "Reduce stress" patented technology

The invention discloses a three-degree-of-freedom series-parallel hybrid humanoid robot waist structure, and relates to the technical field of robots. The defects that an existing multi-degree-of-freedom waist structure is not compact enough, limited in precision, low in rigidity and poor in stability are overcome. The robot comprises a yaw joint mechanism and a pitching-sidesway joint mechanism which are connected in series, upper limbs and legs of the robot are connected through the yaw joint mechanism and the pitching-sidesway joint mechanism, and the yaw joint mechanism can drive the upper limbs of the robot to do yaw motion; the pitching-sidesway joint mechanism comprises a movable platform, a static platform, a joint universal joint and two joint driving assemblies, the movable platform is fixedly connected with the upper limbs of the robot, the static platform is fixedly connected with the legs of the robot, the joint universal joint is connected with the movable platform and the static platform, and the two joint driving assemblies are symmetrically arranged on the left side and the right side of the joint universal joint; and the two joint driving assemblies are connected with the movable platform and the static platform correspondingly, and when the two joint driving assemblies drive the movable platform, the movable platform can do pitching motion and / or side-sway motion around the joint universal joint.

The invention discloses a preparation method of a two-dimensional heterojunction structure, and belongs to the technical field of two-dimensional materials. According to the method, the difference between the optimal viscosity temperature of PC and the optimal viscosity temperature of PPC is utilized, the two-dimensional heterojunction structure comprising the upper supporting layer and the lower supporting layer on the PPC film without viscosity falls on the PC film with high viscosity within the temperature range of 90-110 DEG C, transfer of the two-dimensional heterojunction structure is achieved, and therefore preparation of the two-dimensional heterojunction structure is completed. By adopting the method, pollution and damage to the two-dimensional material and the supporting layer caused by an organic matter extracting and soaking or high-temperature annealing process in the prior art can be avoided; meanwhile, PC and PPC are flexible organic film materials, stress borne by the two-dimensional material can be effectively reduced, and therefore the two-dimensional material is more uniform.

The invention provides a low-warpage underfill adhesive for FC-BGA packaging, a preparation method thereof and a flip chip. The underfill adhesive comprises the following components in percentage by mass: 50%-60% of silicon dioxide, 24%-29% of epoxy resin, 16%-20% of a curing agent, 0.1%-0.2% of carbon black and 0.1%-0.2% of an accelerant. Wherein the epoxy resin is composed of high-purity bisphenol A epoxy resin, polyurethane modified epoxy resin and phenolic aldehyde modified epoxy resin. By adjusting the proportion of the high-purity bisphenol A epoxy resin, the polyurethane modified epoxy resin and the phenolic aldehyde modified epoxy resin and combining the curing agent and the accelerant, the stress of the underfill adhesive is integrally reduced, and the underfill adhesive with good fluidity and low warpage is obtained; therefore, the packaging yield and the packaging efficiency of chip packaging are improved.

The invention provides a multifunctional electric energy metering box, and relates to the technical field of electric energy metering boxes, the multifunctional electric energy metering box comprises an electric energy metering box, communication grooves are formed in two side walls of the electric energy metering box, first inner grooves are formed in the two communication grooves, and first heat dissipation openings and second heat dissipation openings are formed in two side walls of the electric energy metering box; the two second heat dissipation openings are located below the two first heat dissipation openings, an electric energy metering box door is hinged to the electric energy metering box, an observation window and a control panel are arranged on the electric energy metering box door, a containing groove is formed in the side wall of the electric energy metering box, a protective cover is fixedly installed on the side wall of the electric energy metering box, and the protective cover is located over the containing groove. The top of the inner wall of the electric energy metering box is fixedly provided with a fixed box body. The self-adaptive mechanism of the equipment reduces faults caused by overheating or moisture, reduces the maintenance cost, protects electrical elements, ensures the stable operation of the whole system, and improves the reliability and stability of the equipment.

The utility model belongs to the technical field of frame dismounting devices, and relates to a photovoltaic module frame dismounting device capable of self-adapting to glass breaking of various sizes, which comprises a working table, and a long-edge frame dismounting mechanism and a short-edge frame dismounting mechanism which are respectively arranged on the working table, the long-side frame disassembling mechanisms and the short-side frame disassembling mechanisms are arranged in pairs, the paired long-side frame disassembling mechanisms are distributed at the positions close to the long sides of the photovoltaic panel frame in a mirror image mode relative to the central position of the workbench, and the long-side frame disassembling mechanisms downwards press the photovoltaic panel and then outwards push out the long sides of the photovoltaic panel frame. The paired short-edge frame disassembling mechanisms are distributed at the positions close to the short edges of the photovoltaic panel frame in a mirror image mode relative to the central position of the workbench, and the short-edge frame disassembling mechanisms downwards press the photovoltaic panel and then push the short edges of the photovoltaic panel frame outwards. According to the utility model, the paired long-side frame dismounting mechanisms and the paired short-side frame dismounting mechanisms are respectively arranged, so that the four frames are dismounted, the cutting of four corners is not needed, the frame dismounting operation is simple, and the reutilization rate of the frames is improved.

According to the energy storage coupling heat pump steam generation method and system, the mode that the heat pump device and the energy storage device cooperatively operate is adopted, and efficient and economical steam supply is achieved. The method comprises the steps that high-temperature water is prepared and stored in the off-peak electricity period through the heat pump device, and the high-temperature water is further heated through the energy storage device to generate superheated steam for a user to use. The energy storage device comprises a plurality of energy storage modules, and a heat exchange pipeline of the energy storage device can be switched between a parallel connection mode and a series connection mode through switching, so that deep heat release and flexible regulation and control are achieved. According to the method, the energy storage capacity and heat release power of the energy storage module are dynamically adjusted, enthalpy increment distribution of the heat pump and the energy storage device is optimized in combination with load prediction, and diversified steam requirements are met. And meanwhile, preheating or dynamic supplement is conducted on the energy storage module through the heat pump device, waste heat recovery is achieved, and the energy efficiency is improved. According to the method, the operation cost is remarkably reduced, the capacity of the system for adapting to load fluctuation is enhanced, and the method is suitable for industrial steam use scenes and has the advantages of being efficient, stable and flexible.

The invention discloses an IPN multi-element heat-conducting structural adhesive resistant to high and low temperature damp heat and a preparation method thereof, and belongs to the field of IPN multi-element structural adhesives. The structural adhesive is prepared by matching a component A and a component B according to a volume ratio of 0.9: 1.1-1, the component A is prepared from the following raw materials in parts by weight: 10 to 20 parts of silane modified polyether resin A, 10 to 20 parts of silane modified polyether resin B, 2 to 5 parts of amino-containing silane coupling agent, 0.1 to 0.5 part of catalyst, 1 to 2 parts of epoxy curing agent A, 0.5 to 1 part of self-made epoxy curing agent B, 0.1 to 1 part of catalyst, 1 to 3 parts of first aid, 0.01 to 0.03 part of color paste and 50 to 70 parts of first heat-conducting filler; the component B is prepared from the following raw materials: 10 to 20 parts of epoxy resin A, 5 to 10 parts of self-made epoxy resin B, 5 to 10 parts of reactive diluent, 50 to 70 parts of second heat-conducting filler, 0.1 to 1 part of second aid, 0.01 to 0.03 part of color paste and 1 to 1.5 parts of water. The adhesive is environment-friendly in component, has excellent heat-conducting property and excellent operation performance, is smooth in construction, and can be used for firmly bonding a base material.

The embodiment of the invention relates to the photovoltaic field, and provides a back contact photovoltaic module, which comprises a battery piece body, the back surface of which is provided with first and second fine grids which are alternately arranged along a first direction, and first and second main grids which are alternately arranged along a second direction; a plurality of bonding pads, wherein a single bonding pad is located at the disconnected part of the first fine grid and connected with the second main grid or located at the disconnected part of the second fine grid and connected with the first main grid; a plurality of first insulating strips extending along a second direction, wherein at least two first insulating strips form a first insulating group corresponding to a bonding pad; at least two first insulating strips in a single first insulating group are respectively positioned on two opposite sides of the bonding pad along the first direction, any first insulating strip comprises a communication part, and the communication part covers a partial region of the main grid and end parts of two branches of one fine grid disconnected by the main grid; at least one first insulating strip comprises a protruding part protruding towards the bonding pad so as to cover a partial area of the fine grid close to the bonding pad, and at least improvement of the structural stability of the back contact photovoltaic module is facilitated.

The invention discloses an adjusting and mounting system for a hyperbolic single curved arc-shaped suspended ceiling and a construction method thereof.The adjusting and mounting system comprises a roof main steel structure, a transfer layer structure and a hyperbolic suspended ceiling, and the transfer layer structure comprises a hanging steel frame, a forward adjusting main keel, a hanging auxiliary keel, a keel posture adjusting assembly and a suspended ceiling hanging adjusting assembly; the two ends of the adjacent keel sections and the bottom ends of the hanging rods are adjustably connected through the keel posture adjusting assemblies, the suspended ceiling hanging adjusting assemblies are longitudinally arranged corresponding to the hanging secondary keels, the suspended ceiling hanging adjusting assemblies are transversely arranged corresponding to the suspended ceiling plate sections, and the tops of the suspended ceiling hanging adjusting assemblies are connected to the corresponding hanging secondary keels in a buckled mode. According to the method, the equal-plate unequal-joint mode is adopted, the width of the suspended ceiling plate is a fixed value, the hyperboloid is adjusted by controlling the posture of the suspended ceiling plate and the width of the plate joint, variable cross-section welding machining does not need to be conducted on the arc-shaped suspended ceiling plate, the overall hyperboloid curvature of the arc-shaped hyperboloid suspended ceiling is guaranteed, batch production is conducted on the plate, and the construction quality is guaranteed.

The invention discloses a groove sinking method and device for large-size synthetic quartz glass. The groove sinking method comprises the following steps: providing a synthetic quartz glass lump; placing a groove sinking mold on an objective table of a groove sinking furnace, and placing the quartz glass weight in the groove sinking mold; closing the tank sinking furnace, vacuumizing, raising the temperature to the tank sinking temperature, introducing protective gas, and starting a rotary driving mechanism of the objective table to carry out tank sinking modification; and after groove sinking is finished, three-stage precision annealing treatment is carried out in a groove sinking furnace. In the groove sinking modification process, the objective table is driven to rotate through the rotary driving mechanism, the groove sinking mold is driven to rotate, and the problems that in the large-size synthetic quartz glass groove sinking process, forming is difficult, and bubbles, stripes and other defects are prone to occurring are solved; and three-stage annealing treatment is performed in the groove sinking furnace, and the groove sinking mold is kept rotating in the annealing process, so that the problems of high energy consumption, low production efficiency, poor temperature uniformity and poor annealing effect caused by single annealing in the annealing furnace are avoided.

The invention provides a flow guiding device of a ship propeller and a ship. The flow guide device comprises a plurality of guide vanes, the guide vanes are fixedly connected to the stern of the ship in the circumferential direction of the propeller, and the guide vanes are arranged at different positions in the axial direction of the propeller. The guide vanes are arranged at different positions in the axial direction of the propeller, so that the stress borne by the flow guide device is reduced; by limiting the circumferential length of flow guide, the resistance borne by the flow guide device can be reduced on the premise that the stability of the structure is improved. The ship stern and the flow field around the propeller are improved, the propelling efficiency of the propeller is improved, and the pressure at the blade backs of the propeller blades can be increased, so that the stress of the propeller is increased, and the thrust component is increased accordingly; the flow field pressure at the guide vanes outside the guide wheel can be reduced, so that the flow velocity of the flow field is increased, and the propeller efficiency is improved.

The invention discloses a preparation method and application for preparing a cobalt-doped manganese dioxide material by taking Co3 [Co (CN) 6] 2 as a hard template, and belongs to the technical field of electrode material preparation. The preparation method comprises the following steps: firstly, preparing a Co3 [Co (CN) 6] 2 type Prussian blue nano cubic material through a liquid phase coprecipitation reaction method; and then preparing the cobalt-doped manganese dioxide material with a loose porous structure by taking the Co3 [Co (CN) 6] 2 type Prussian blue nano cubic material as a hard template and potassium permanganate as a reaction raw material and adopting a hydrothermal synthesis method, specifically, forming a submicron cube with the size of 200-700nm by combining nanosheets with the thickness of about 10-20nm, and preparing the cobalt-doped manganese dioxide material with the loose porous structure by adopting a hydrothermal synthesis method. And an optimization strategy of Co atom doping of manganese dioxide and nanosheet morphology control is synchronously completed. When the material is used as an electrode material, the conductivity of the manganese dioxide electrode material is greatly improved, the capacity of an aqueous zinc ion battery is improved, and the material has excellent charge-discharge cycle stability.

The invention discloses a constant-pressure type compressed air energy storage system and method combined with pumping and storage, and belongs to the technical field of electric energy physical energy storage systems, and the constant-pressure type energy storage system comprises a pumped storage subsystem, a turbine expansion power generation subsystem, a compressed air energy storage subsystem and a water-gas common-capacity cabin constant-pressure subsystem. By flexibly controlling the operation modes of the subsystems and the on-off states of valves among the subsystems, the system can achieve independent energy storage and power generation operation among the pumped storage subsystem, the air compression subsystem and the turbine expansion subsystem. The design not only improves the flexibility and reliability of the system, but also enables the system to carry out optimal configuration and operation according to actual demands, thereby further improving the energy storage efficiency and economic benefits.

The invention discloses a method for manufacturing a functionally graded composite material through wire powder composite arc additive manufacturing, which comprises the following steps: firstly, carrying out surface treatment on a base material, enabling the surface of titanium alloy to expose fresh white bright metal luster by adopting a machining mode, and removing surface oil stains by using alcohol and acetone; according to the requirement of materials for the gas atmosphere in the additive manufacturing process, the flexible inert gas cabin is filled with appropriate gas, and the gas atmosphere is kept all the time in the additive manufacturing process. On the basis of the electric arc additive manufacturing technology, electric arc additive manufacturing of the functional gradient metal-based composite material is achieved through a wire powder composite device, and the key technology is that according to different position requirements of parts, the metal-based composite materials with different ceramic particle contents are manufactured in an additive mode; a gradient transition area is manufactured between two areas with large particle content difference, and large stress generated at an interface due to component mutation is reduced.

The embodiment of the invention provides an adapter plate and a preparation method thereof, a chip packaging structure and electronic equipment, relates to the technical field of semiconductors, and is used for improving the signal transmission efficiency in the adapter plate. The adapter plate comprises a substrate, a conductive structure arranged in the substrate, a first redistribution layer arranged on the substrate and a second redistribution layer arranged on the side, away from the first redistribution layer, of the substrate. The second redistribution layer is coupled to the first redistribution layer through the conductive structure. Wherein the material of the substrate comprises a semiconductor material, the first redistribution layer comprises a first metal wire, the second redistribution layer comprises a second metal wire, and the thickness of the first metal wire and / or the second metal wire is greater than 1 [mu] m.

The utility model discloses an explosion-proof valve and a battery, the explosion-proof valve comprises a body, the body is provided with a nick and a buffer groove, and the nick and the buffer groove are both runway-shaped; the nick comprises a deep groove section and a shallow groove section, the depth of the shallow groove section is D, the distance between the bottom wall of the shallow groove section and the bottom wall of the body is T1, and the distance between the bottom wall of the deep groove section and the bottom wall of the body is T2; the distance between the bottom wall of the buffer groove and the bottom wall of the body is T3; wherein D is greater than 0, T3 is greater than T2, and T1 is greater than T2. According to the anti-explosion valve disclosed by the utility model, the buffer groove is arranged, so that the stress borne by the nick can be greatly reduced under the working conditions of battery cell production, pack assembly and whole vehicle vibration, and the fatigue cracking failure caused by overlarge stress borne by the nick is prevented; the nick is in a runway shape and comprises the deep groove section and the shallow groove section, and the depth of the shallow groove section is not zero, so that the set opening pressure of the anti-explosion valve can be effectively reduced while the manufacturing cost is reduced.

The embodiment of the utility model discloses a nano water particle bath assisting device. According to one specific embodiment, the nano water particle bath assisting device comprises a bath assisting device shell, a nano water particle generating assembly, a wind power assembly and a heating assembly. The nano water particle generating assembly comprises a water tank, a centrifugal impeller, a centrifugal impeller motor, a water pump, a water pump water inlet pipe and a water pump water outlet pipe. The centrifugal impeller motor is used for driving the centrifugal impeller to rotate; the water pump is used for conveying water pumped from the water inlet to the water tank; the wind power assembly comprises a centrifugal fan, a centrifugal fan air inlet flange, a centrifugal fan air inlet rotating valve and a ventilating duct, the ventilating duct is communicated with an air outlet of the centrifugal fan and the water tank, and a hot air heating pipe is arranged in the centrifugal fan; the bath assisting device shell is provided with a water particle air outlet, and the water particle air outlet is used for being communicated with the bath assisting bin so as to provide water particles into the bath assisting bin. According to the embodiment, the probability of disease attack of the bather can be reduced, and the safety of the bather is improved.

The invention discloses a ducted unmanned aerial vehicle structure. The device comprises a machine body supporting beam, fixed ducted fans and movable ducted fans are arranged on the left side and the right side of the machine body supporting beam, the fixed ducted fans are arranged on the front side and the rear side of the movable ducted fans, a fixed frame and a telescopic frame are arranged on the machine body supporting beam, and the fixed ducted fans and the machine body supporting beam are fixed. The movable ducted fan and the machine body supporting beam are movably connected left and right, the fixed ducted fan and the movable ducted fan each comprise a ducted body, a motor base is arranged on the inner side of each ducted body, the motor bases and the ducted bodies are fixed through a plurality of guide vanes, motors are fixed to the motor bases, water cooling cavities are formed in the motor bases, and the water cooling cavities are formed in the outer sides of the motors. A cooling water channel is arranged on the inner side of the guide vane. The folding unmanned aerial vehicle has the beneficial effects that the folded unmanned aerial vehicle is of an H-shaped structure, and the trafficability of road transportation or road driving can be met; and the extended unmanned aerial vehicle is of a *-shaped structure, so that the yaw control capability is improved.

The invention provides an unfavorable geological section treatment structure of an underground high-pressure gas storage and a design method of the unfavorable geological section treatment structure. The treatment structure comprises replacement concrete arranged between a weak structural layer and backfill concrete. The section of the replacement concrete in the radial direction of the gas storage is an isosceles trapezoid, the upper bottom edge of the isosceles trapezoid is connected with the weak structure layer, the lower bottom edge of the isosceles trapezoid is connected with the backfill concrete, the two waist edges of the isosceles trapezoid are connected with the surrounding rocks on the two sides of the replacement concrete respectively, and the length L3 of the upper bottom edge is smaller than the length L1 of the lower bottom edge. The treatment structure can prevent the safety problem of the gas storage caused by the characteristics of low strength, easy deformation and the like of the weak structural layer.

The invention discloses a hard rock cutting pick with a double-clamp-spring structure, and belongs to the technical field of cutting picks. A hard rock cutting pick with a double-clamp-spring structure comprises a cutting pick body, the cutting pick body comprises a pick handle and a pick head which are detachably connected, a protruding block protruding outwards is formed on the bottom wall, corresponding to the pick handle, of the pick head, and a plurality of inserting parts extending outwards are formed on the outer wall of the protruding block at equal intervals; a butt joint groove matched with the bottom wall of the tooth head is formed in the top wall of the tooth handle, inserting grooves which are concave inwards and matched with the protruding block and the inserting parts are formed in the bottom wall of the butt joint groove, and the protruding block is used for being matched with the inserting parts to limit the tooth head in the circumferential direction. The cutting pick is provided with the pick handle and the pick head which are detachably connected, when the pick head needs to be replaced due to abrasion or damage, only the pick head part needs to be replaced, the whole cutting pick does not need to be replaced, material waste is reduced, and the production cost and the maintenance cost are reduced.

The invention aims to provide a heat treatment method for reducing quenching stress and improving low-temperature toughness of a Cr-Ni-Mo-V steel forging, and belongs to the technical field of metal material heat treatment. The method comprises the following steps: (1) carrying out isothermal annealing heat treatment on the Cr-Ni-Mo-V steel forging; (2) carrying out normalizing heat treatment on the isothermal annealing forge piece; (3) carrying out tempering heat treatment on the normalized forge piece; (4) the tempered forge piece is subjected to step quenching treatment; and (5) carrying out rapid tempering treatment on the quenched forge piece. By means of the heat treatment method, the surface quenching residual stress of the Cr-Ni-Mo-V steel forge piece can be reduced by 30% or above, meanwhile, the strength and low-temperature impact energy of the Cr-Ni-Mo-V steel forge piece are improved by 10% or above, and the safety and reliability of the Cr-Ni-Mo-V steel forge piece are improved.

The invention provides a tarpaulin frame with an anti-deformation function and a truck tarpaulin system. The tarpaulin frame comprises cross bars, and the bottom ends of the cross bars are provided with first contact surfaces; the top end of the vertical pile is provided with a second contact surface; the guide assembly is respectively connected with the cross bar and the vertical pile, comprises a fixed frame, is formed on one of the first contact surface and the second contact surface, and is provided with a through buffer space; the mounting seat is matched with the fixed frame, is formed on the other one of the first contact surface and the second contact surface, and is provided with a mounting groove with an opening facing the fixed frame; and the two ends of the guide part can penetrate through the buffer space to be connected with the side walls of the mounting grooves correspondingly, the guide part responds to deformation of the tarpaulin frame, and the guide part can limit the relative displacement between the fixing frame and the mounting base in the buffer space. When the tarpaulin frame is impacted by external force, unfavorable deformation of the tarpaulin frame is avoided, and the stability of the overall structure of the tarpaulin frame is guaranteed.

The invention relates to the field of gas turbines, in particular to a gas turbine pull rod thread service life and anti-loosening optimization method based on a reverse technology, and the thread service life optimization method comprises the following steps: fitting a pull rod pre-tightening stretching amount by adopting normal distribution to obtain a cold-state stretching amount; measuring the main runner gas temperature under normal start-stop and quick start-stop working conditions, and calculating a convective heat transfer coefficient; a transient temperature field is calculated, and then a pull rod pre-tightening force transient change curve is solved; according to the stress and strain of the pull rod thread, respectively calculating the pull rod thread life and the pull rod thread total damage; an unloading groove is milled in the end face, making contact with a wheel disc, of the pull-rod nut, and the optimal solution of the unloading groove of the pull-rod nut is obtained through response face optimization. According to the anti-loosening optimization method, the response surface of the taper angle of the thread teeth of the pull rod thread is optimized on the basis. By solving the optimal solution of the unloading groove, the stress and strain of the tooth root part of the first thread are minimum, and the service life is prolonged; and the taper angle is added on the thread, so that the thread tooth load distribution is more uniform, and the anti-loosening effect is better.

The present invention relates to a pole piece preparation device and a pole piece preparation method, the pole piece preparation device comprises: a first unwinding mechanism for unwinding and outputting a first material strip, the first material strip has a current collector and a positive electrode coating, the current collector has a plurality of coating areas arranged at intervals and a non-coating area arranged around the plurality of coating areas, and the positive electrode coating is located in the coating area; the cutting mechanism is used for cutting the second material belt, so that the insulating layer of the second material belt forms a plurality of mutually spaced first areas and continuous second areas, the first areas and the coating areas are arranged in a one-to-one correspondence manner, and the second areas and the non-coating areas are arranged in a one-to-one correspondence manner; and the compounding mechanism is used for compounding the second area of the insulating layer to the non-coating area of the first material belt and forming a positive electrode material belt with a plurality of positive electrode plate areas, and each positive electrode plate area comprises at least part of one coating area and at least part of the non-coating area surrounding the coating area.

The invention provides a cavity type bulk acoustic wave resonator with a Bragg reflection layer and a preparation method of the cavity type bulk acoustic wave resonator, and relates to the technical field of bulk acoustic wave resonator manufacturing. The cavity type bulk acoustic wave resonator comprises a first substrate, a bottom electrode, a piezoelectric layer and a top electrode which are stacked in sequence, a cavity is formed between the first substrate and the bottom electrode, the cavity is provided with a plurality of supporting columns, the supporting columns are used for supporting the first substrate and the bottom electrode, each supporting column comprises at least one group of Bragg reflection layers, and the Bragg reflection layers are arranged in the cavity. The Bragg reflection layer is formed by stacking a first material and a second material, and the acoustic impedance of the first material is higher than that of the second material. The cavity type bulk acoustic wave resonator solves the problem that an existing supporting column increases energy loss, and it is guaranteed that the resonator has more stable performance while the electromechanical coupling coefficient is increased.

The invention relates to the technical field of medical instruments, and particularly discloses a wound hemostasis device for general surgery clinical surgery, which comprises a base, and further comprises a hemostasis component arranged on the base and used for carrying out compression hemostasis on a wound of a patient; the regulation and control assembly is arranged on the hemostasis assembly, and the regulation and control assembly is used for regulating the compression force of the hemostasis assembly on the wound. The hemostasis device can be conveniently aligned to the wound of a patient through the hemostasis assembly, the compression hemostasis effect is prevented from being affected by the offset of the compression position, the compression force on the wound of the patient can be relieved every set time in the compression hemostasis process of the wound of the patient through the regulation and control assembly, and the hemostasis effect is improved. The compression hemostasis device can be used for preventing discomfort of a patient possibly caused by long-time compression on the wound, and can be used for adjusting the compression on the wound according to the hemostasis condition when the compression is relieved and if the errhysis condition occurs, so as to ensure compression hemostasis on the wound.

The air entraining pipeline can transmit hot air in a heat insulation mode and can release thermal deformation of the pipeline, and internal stress of the structure is reduced. A hot air anti-icing system can reduce heat loss of hot air flow passing through an air inlet cabin. The gas guiding pipe comprises an inner-layer pipe wall and an outer-layer pipe wall, a heat insulation structure is arranged between the inner-layer pipe wall and the outer-layer pipe wall, the inner-layer pipe wall comprises a floating section, and the floating section comprises a first pipe end and a second pipe end which are in lap joint with each other and are in sliding fit. One end of the corrugated pipe is connected with the first pipe end, the other end of the corrugated pipe is connected with the second pipe end, and the corrugated pipe covers the lap joint position between the first pipe end and the second pipe end.

The invention provides a fresh corn header, which belongs to the technical field of corn harvesting and comprises a plurality of groups of harvesting chain wheels, each group of harvesting chain wheels are connected through a harvesting chain, the outer side of each harvesting chain is connected with a plurality of pushing blocks, and a material channel is formed between every two adjacent harvesting chains; the bottom of the harvesting chain wheel on one side is fixed to a bottom plate, and the bottom plate is fixed to the table body. An elastic ear picking device is further arranged on the bottom plate and arranged on the inner side of the harvesting chain, and a harvesting chain wheel on the other side of the elastic ear picking device is fixed to the table body. The table body is also connected with a stalk pulling assembly for pulling corn stalks; the stem pulling assembly is located at the bottom of the elastic ear picking device. According to the corn harvester, the elastic ear picking device moves along with corn when the stalk pulling assembly separates corn stalks from the corn, stress of corn kernels is reduced, meanwhile, the elastic ear picking device can change the size of a material channel according to the size of the corn, rolling of the corn is reduced, and therefore damage to the corn is reduced.

The utility model provides guide rail type vertical axis wind power generation equipment. The lifting force blades generate lifting force under the action of wind to push the rail moving mechanism to annularly move along the annular rail, then the driving shaft is pulled to rotate through the traction rope, and the driving shaft enables the generator to generate electricity through the step-up gear box. A cantilever beam structure in which blades and a vertical shaft are directly connected in existing vertical shaft wind power generation equipment is avoided, the driving shaft does not bear cantilever torque any more, the requirement for the strength of the driving shaft is greatly lowered, the size and height of the driving shaft are reduced, an overlong vertical shaft can be omitted, the material cost is greatly lowered, machining and installation are easy, and the service life of the driving shaft is prolonged. The number of the lifting force blades and the number of the track moving mechanisms are designed according to the unit power, the larger the diameter of the annular track is, the larger the number of the lifting force blades and the number of the track moving mechanisms are, and then the power generation efficiency is improved.

The utility model relates to a bendable electrochromic device, and belongs to the field of electrochromic devices.The bendable electrochromic device comprises a first transparent base material layer, a first bonding layer fixedly bonded to the lower surface of the first transparent base material layer and a first transparent conductive layer arranged on the lower surface of the first bonding layer, and a reinforcing toughness assembly is arranged on the lower surface of the first transparent conductive layer; the reinforcing toughness assembly comprises a plurality of transverse reinforcing ribs which are fixedly connected to the lower surface of the first transparent conductive layer, and the outer portions of the transverse reinforcing ribs are fixedly connected with a plurality of vertical reinforcing ribs. According to the bendable electrochromic device, the transverse reinforcing ribs and the vertical reinforcing ribs are arranged, so that the toughness of the electrochromic device body during bending is improved, the electrochromic device body is prevented from being broken or damaged in the bending process, and the mechanical durability of the electrochromic device body is good; the performance and the attractiveness of the electrochromic device body are guaranteed, and the advantage of being bendable is achieved.