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30results about How to "Avoid structural instability" patented technology

Composite positive electrode material and preparation method thereof, positive plate and lithium ion battery

The invention discloses a composite positive electrode material and a preparation method thereof, a positive plate and a lithium ion battery. The composite positive electrode material comprises lithium iron phosphate and a carbon coating layer coating the surface of the lithium iron phosphate, wherein the integral intensity ratio ID / IG of a D peak to a G peak of the carbon coating layer in a Raman spectrum is 0.2-0.9, and the resistivity of the composite positive electrode material is 0.1-10 omega.cm. According to the preparation method, the graphitization degree of the carbon coating layer is controlled within a proper range (ID / IG is 0.2-0.9), so that good conductivity is ensured, and structural instability caused by excessive graphitization is avoided. The moderate graphitization degree is beneficial to formation of an ordered carbon layer structure, provides more electron transport channels and reduces the potential barrier of electron migration, so that the conductivity of the composite material is greatly improved, and the resistivity is reduced to an excellent level of 0.1-10 omega.cm.
Owner:广州融捷能源科技有限公司

Dacron large biological fiber containing rose active component and preparation method of polyester large biological fiber

The invention provides a large polyester bio-fiber containing rose active ingredients and a preparation method of the large polyester bio-fiber. The large polyester bio-fiber comprises the following raw materials in parts by weight: 10-12 parts of polyester chips and 2-3 parts of rose extract microcapsules, the preparation method of the rose extract microcapsule comprises the following steps: adding tannic acid into a sodium alginate aqueous solution, stirring and mixing to obtain a solution A, adding nano-hydroxyapatite, a calcium chloride / glutaraldehyde composite cross-linking agent, a rose extract and lauryl sodium sulfate into a chitosan acetic acid aqueous solution, stirring and mixing to obtain a solution B, and uniformly stirring to obtain the rose extract microcapsule. And mixing and stirring the solution A and the solution B to obtain the rose extract microcapsule. According to the polyester large biological fiber containing the rose active component and the preparation method of the polyester large biological fiber, the rose active component is effectively and uniformly introduced into the polyester fiber, meanwhile, the original physical performance of the fiber is kept, the stability of the active component is further kept, the slow release time is prolonged, and the polyester large biological fiber is endowed with more health functions.
Owner:BAICAO FUTURE HEALTH TECHNOLOGY (QINGDAO) CO LTD +1

Hydrogen-corrosion-resistant coating material for hydrogen-rich electrolyte environment and preparation method of hydrogen-corrosion-resistant coating material

The invention discloses a hydrogen-corrosion-resistant coating material for a hydrogen-rich electrolyte environment and a preparation method thereof, and relates to the technical field of hydrogen-corrosion-resistant coating materials, the coating material comprises the following components by weight: a metal matrix reinforcing material: 30%-50% of nickel and 5%-10% of cobalt; the ceramic particles comprise 10%-20% of aluminum oxide and 5%-15% of The coating material disclosed by the invention shows excellent corrosion resistance, wear resistance and hydrogen embrittlement resistance in a hydrogen-rich electrolyte environment. The nickel-cobalt alloy layer is kept stable at high temperature and high pressure, hydrogen permeation is blocked, and material degradation is prevented. Aluminum oxide and silicon carbide improve the hardness and wear resistance of the coating, and the coating is kept intact in temperature circulation. The rare earth elements yttrium oxide and cerium oxide enhance the oxidation resistance and hydrogen embrittlement resistance. And the dispersing agent and the cross-linking agent further improve the uniformity, compactness and adhesion of the coating, so that the coating is suitable for industrial parts in high-pressure and high-stress environments.
Owner:HAINAN UNIV

Door-shaped support for large truss type undercarriage

PendingCN119460086AIncrease the number ofavoid structural instabilityUndercarriagesAircraft landingAirframe
The invention provides a door-shaped support for a large truss type landing gear, and belongs to the technical field of aircraft landing gear, the door-shaped support comprises a door-shaped support body, the lower side of the door-shaped support body is provided with an opening, and the opening is used for forming a motion space of a buffer installed on a landing gear supporting column; wherein a first connecting lug is arranged on the upper side of an opening of the door-shaped support, a rear set of undercarriage supporting columns are supported through the first connecting lug, a second connecting lug is arranged at the corner of the opening of the door-shaped support, connection between the door-shaped support and an airframe structure is achieved through the second connecting lug, and wide double lugs are formed on the two sides of the opening of the door-shaped support. The wide double-lug piece is installed at the hinge point position of the undercarriage supporting column and the rocker arm and is connected with the undercarriage supporting column and the rocker arm through the same connecting shaft.
Owner:XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA

Clothing pattern intelligent generation method and system based on multi-modal visual identification

The invention provides a clothing pattern intelligent generation method and system based on multi-modal visual identification, and relates to the technical field of visual identification. The method comprises the following steps: firstly, acquiring clothing image data and text description data, performing unified preprocessing, obtaining a style category label, an appearance attribute label and a local contour key point set through multi-modal visual identification, generating structure semantic elements and geometric anchor points by utilizing a semantic-to-structure mapping knowledge base, and constructing a plate type structure diagram; further analyzing the structural constraint and executing constraint solution to generate a candidate pattern; and in combination with manufacturability verification and constraint correction, closed-loop optimization is formed, a target plate type file meeting the structure and manufacturing requirements is output, and effective connection from semantic recognition to plate type structure generation is realized.
Owner:HUNAN VOCATIONAL COLLEGE FOR NATIONALITIES +1

Crossing movable platform attached to high-altitude bridge

The utility model relates to the technical field of bridge construction, and discloses a crossing movable platform attached to a high-altitude bridge, which comprises a space structure body, the top end of the space structure body is fixedly connected with the bottom surface of the bridge, and the space structure body comprises a plurality of polygonal annular frames; each polygonal annular frame comprises a polygonal bottom frame and vertical supporting frames distributed in the circumferential direction of the bottom frame. The multiple polygonal annular frames are sequentially arranged in the length direction of the bridge. The anti-falling net is arranged on the bottom surface and the circumferential direction of the space structure body in a tensioning manner; the climbing entertainment device is located in the space structure body and attached to the space structure body; the corners of the bottom frames of every two adjacent polygonal annular frames are aligned at the top points and connected through circumferential dampers used for consuming horizontal vibration, and metal dampers used for consuming vertical vibration are arranged between the top of the space structure body and the bridge. The technical problems that an ultra-long movable platform attached to a high-altitude bridge is greatly influenced by wind shock, and the sense of safety of tourists is low are solved.
Owner:GUIZHOU JIAOTONG ECONOMIC & TECHNOLOGY RESEARCH & DEVELOPMENT CO LTD +1

Vibration pile driving simulation equipment

ActiveCN110952604Bavoid structural instabilitystable structureFoundation testingBulkheads/piles
The present invention discloses a vibration pile driving simulation device, comprising: a pile body; an electric vibrator connected to the pile body, suitable for generating an exciting force and transmitting the exciting force to the pile body; and a soil container, suitable for containing the soil body and suitable for vertically upward movement relative to the pile body, so as to simulate the pile driving process of the pile body under the action of the exciting force. The vibration pile driving simulation device of the present invention has a simple structure and can accurately simulate the vibration pile driving process of the pile body under the action of the exciting force in reality.
Owner:YUNNAN UNIV +2

A kind of electric hoist on-line replacement device for ring rail

ActiveCN224740195Uavoid bad trafficavoid downtime
The utility model discloses a kind of electric hoist online change-out devices for loop track, it includes: connecting fixed beam, front stopper, angle steel guide rail, upper fixer, guide rail support beam, V-shaped roller, rail car frame, front rail, rotating shaft, cylinder, cylinder tailstock, rear rail, rear stopper and conveying guide rail;The both ends of the connecting fixed beam are respectively welded in the both ends of guide rail support beam.The utility model increases rail changing mechanism on the original loop track basis, and damaged electric hoist can be changed out while producing, to avoid downtime, ensure production output.It is simple and detailed in structure, can be reformed to completed rail changing equipment, greatly reduce the cost of reformation, at the same time, avoid the inaccuracy of guide rail alignment caused by reformation or manufacturing, and cause hoist to be not smooth, device is set in loop track electric hoist empty load section to avoid unstable structure due to load, at the same time, electric hoist is no load in empty load section, avoid danger when maintaining.
Owner:QINGDAO HEHAI FOUNDRY MASCH CO LTD

Stable light-emitting free radical material based on space-induced energy level inversion effect

The invention relates to the technical field of organic light-emitting materials, and discloses a stable light-emitting free radical material based on a space-induced energy level inversion effect, the light-emitting free radical material is a light-emitting free radical compound based on a donor-bridging group-free radical structure, and a donor group and a free radical are not directly linked but are close to each other in space. The key properties of the light-emitting free radical material are that a donor group is connected with a free radical through a bridging group, the obtained free radical molecule realizes high-efficiency photoluminescence through space charge transfer, and the special property of energy level inversion is realized through a space induction effect; not only is the molecular stability enhanced, but also the transition path of electrons is optimized, so that the luminescence process is more efficient and stable.
Owner:HAINAN UNIV

Whole-process simulation and blasting pressure prediction method for weak-rigidity core mold composite material shell

PendingCN121859660Aimprove accuracySolve the pain point of being unable to quantify stress inheritance throughout the entire processGeometric CADDesign optimisation/simulationElement modelProcess simulation
The invention discloses a full-process simulation and blasting pressure prediction method for a weak-rigidity core mold composite material shell, and belongs to the technical field of solid rocket engine integrated explosive forming shell design. The method comprises the following steps: designing an equal residual stress tension system based on a fiber winding layer stress theory; constructing a finite element model in the shell winding process, iteratively optimizing a tension system and determining a stress field and a strain field after winding; taking the stress field and the strain field as predefined fields, constructing a finite element model in the curing process, and calculating the stress field and the strain field after curing; and based on the stress field and the strain field after curing, progressive damage analysis is realized through a three-dimensional Hashin criterion, and the maximum blasting pressure of the shell with the powder is predicted. The problems that in the prior art, a tension system lacks collaborative optimization, simulation cannot cover the whole process, and blasting prediction deviation is large are solved, precise coupling prediction of the process and performance is achieved, and theoretical support is provided for optimization of the integrated forming process.
Owner:XI AN JIAOTONG UNIV

Reinforcing structure for embankment top pavement

The utility model relates to an embankment top pavement reinforcing structure which comprises a foundation, an embankment body is arranged on the upper side of the foundation, the upper surface of the embankment body is partially lost to form an opening, and a main reinforcing mechanism for improving the strength of the embankment top pavement is arranged in the opening. Lateral reinforcing mechanisms for assisting in improving the strength of the road surface of the levee top are arranged on the left side and the right side of the levee body. According to the embankment top pavement reinforcing structure, firstly, the main reinforcing structure is adopted, and the first reinforcing layer and the second reinforcing layer are subjected to multiple positioning through the first reinforcing columns and the second reinforcing columns correspondingly, so that a pavement base layer and a subbase layer structure of a pavement can effectively support a pavement surface layer, sliding is not prone to occurring, and the strength of a pavement foundation is effectively improved; meanwhile, the anti-seepage layer and the drainage groove are matched, so that water is effectively prevented from permeating into roadbed soil, the soil body below is further prevented from being eroded by the water, and the soil body is prevented from loosening, losing and possibly causing unstable structure.
Owner:HUBEI ZHIHONG WATER CONSERVANCY & HYDROPOWER DESIGN CO LTD

A negative electrode electrolyte for alkaline all-iron flow batteries and its preparation method

This invention belongs to the field of flow battery energy storage technology, and relates to a negative electrode electrolyte for alkaline all-iron flow batteries and its preparation method. The negative electrode electrolyte is prepared from iron salts, a complexing agent, a promoting component, an alkaline component, an auxiliary electrolyte, and water. The total iron concentration is 0.1–2.0 mol / L, the molar ratio of the complexing agent to the iron salt is 1.5–4, the molar ratio of the promoting component to Fe is 0.05–1.0, the alkaline component concentration is 2.0–6.0 mol / L, and the auxiliary electrolyte concentration is 0–2.0 mol / L. The negative electrode electrolyte of this invention for alkaline all-iron flow batteries has a high total iron concentration, which not only avoids the precipitation of elemental iron during charging and discharging, but also effectively prevents the formation of ferric hydroxide precipitate, improves the stability of iron ions, and greatly extends the cycle life of the negative electrode electrolyte. It can be widely used in aqueous alkaline all-iron flow batteries.
Owner:WUHAN GLT ENERGY & ENVIRONMENTAL TECH CO LTD

Triangular supporting structure for large truss type undercarriage

InactiveCN119460085Aavoid structural instabilitysmall sizeWeight reductionUndercarriagesAircraft landingAirframe
The invention provides a triangular supporting structure for a large truss type landing gear, and belongs to the technical field of aircraft landing gear design, the triangular supporting structure comprises an upper support and a lower support, the upper support and the lower support are both of a rod structure, the upper support comprises a first connecting lug piece and a second connecting lug piece, the first connecting lug piece and the second connecting lug piece are distributed at the two ends and used for installing undercarriage supporting columns, the second connecting lug piece is used for being connected with an airframe structure, and a third connecting lug piece used for being connected with the lower support is arranged between the first connecting lug piece and the second connecting lug piece. The third connecting lug is not located on a connecting line of the first connecting lug and the second connecting lug. The two ends of the lower supporting rod are provided with a double-lug structure used for being connected with the third connecting lug piece of the upper supporting rod and a fourth connecting lug piece used for being connected with a machine body structure respectively, and the third connecting lug piece is inserted into the double-lug structure and connected with the double-lug structure through a bolt. A supporting section formed by the upper supporting rod and the lower supporting rod is perpendicular to the undercarriage supporting column.
Owner:XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA

Reinforcing structure for water conservancy and hydropower engineering cofferdam

The utility model discloses a water conservancy and hydropower engineering cofferdam reinforcing structure which comprises a connecting mechanism, a plurality of angle fixing mechanisms are fixedly installed in the connecting mechanism, an adjusting mechanism is fixedly installed in every two angle fixing mechanisms, and each adjusting mechanism comprises a first installation base and a second installation base. A screw rod is fixedly mounted on one side of the first mounting seat, an adjusting knob is in threaded connection with the surface of the screw rod, a limiting rod is fixedly mounted on one side of the second mounting seat, the limiting rod is slidably mounted in the screw rod, and a spring is fixedly mounted on one side of the second mounting seat. The contraction direction of the spring is limited through cooperation of the limiting rod and the screw rod, it is ensured that the whole adjusting mechanism can play a supporting and connecting role, and the impact resistance and the compression resistance are adjusted in the mode that the spring is extruded by rotating the adjusting knob to adjust the contraction degree of the spring.
Owner:高春雨

Bending die for hydrogen production system

The utility model provides a bending die for a hydrogen production system, which belongs to the technical field of bending and comprises an elastic support component arranged on an upper die component or a lower die component, die heads are arranged on one side of the lower end of the upper die component and one side of the upper end of the lower die component, the two die heads are arranged in a vertically staggered manner, and the elastic support component is positioned on the outer side of the die heads. The elastic supporting assembly comprises an elastic piece which is arranged at the lower end of the upper die assembly or the upper end of the lower die assembly, a supporting piece is arranged at the end, close to materials, of the elastic piece, the supporting piece is located on the outer side of the die head, and the elastic piece comprises a plurality of nitrogen springs arranged at the lower end of the upper die assembly or the upper end of the lower die assembly. Pressing plates are arranged at the ends, close to the materials, of the nitrogen springs. By means of the elastic supporting assembly, bending stress can be evenly dispersed, structural instability caused by local deformation of a large-size part is avoided, and the height consistency and flatness of a bent part are remarkably improved.
Owner:JIANGYIN ELECTRICAL ALLOY

A positioning structure for riveting and welding

This utility model relates to the field of riveting and welding processing technology, and discloses a riveting and welding processing positioning structure, including a base plate. Connecting columns are fixedly connected to both sides of the upper surface of the base plate. A fixing frame is fixedly connected to the upper ends of the two connecting columns. Working plates are rotatably connected to both sides of the fixing frame. Adjustable clamping mechanisms are provided on both working plates. An angle adjustment mechanism is provided between the two working plates and the base plate. Each adjustable clamping mechanism includes two fixing plates, which are respectively fixedly connected to one side of the upper surface of the working plate at a position close to the front and rear. In this utility model, the adjustable clamping mechanism allows the position of the clamping frame to be adjusted according to the required workpiece length, enabling the clamping of workpieces of different lengths. Furthermore, the angle adjustment mechanism allows the angle of the working plates to be adjusted, thus enabling the processing of workpieces of different shapes and welding positions, resulting in better usability.
Owner:CIVIL AVIATION FLIGHT UNIV OF CHINA

Catalyst layer with gradient pore structure as well as preparation method and application of catalyst layer

The invention relates to a catalyst layer with a gradient pore structure and a preparation method and application thereof, and the preparation method comprises the following steps: by taking polyvinyl alcohol as a pore forming agent, forming a first catalyst layer on a proton exchange membrane by using a first catalyst slurry layer; taking polyvinyl alcohol and calcium carbonate particles as pore-forming agents, and forming a second catalyst layer on the first catalyst layer by using the second catalyst slurry layer; and by taking calcium carbonate particles as a pore forming agent, forming a third catalyst layer on the second catalyst layer by utilizing the third catalyst slurry layer. Compared with the prior art, by virtue of the gradient pore structure design, effective diffusion of oxygen from the gas diffusion layer into the catalyst layer is realized, the oxygen mass transfer resistance is reduced, meanwhile, the occurrence of a water logging phenomenon in the catalyst layer is slowed down, and the electrochemical performance of the fuel cell is remarkably improved.
Owner:SHANGHAI JIAOTONG UNIV

Foundation pit anti-falling warning device

PendingCN119332702AImprove protection securityavoid structural instabilityTraffic signalsExcavationsArchitectural engineeringHeight increasing
The invention relates to the technical field of foundation pit anti-falling warning, and particularly discloses a foundation pit anti-falling warning device which comprises a foundation pit unit, and the foundation pit unit comprises a soil body layer and a foundation pit arranged on the soil body layer; and the filling unit comprises a first filling piece arranged at the lower end of the foundation pit, a second filling piece arranged at the upper end of the foundation pit, a connecting assembly arranged between the top of the first filling piece and the bottom of the second filling piece, a triggering assembly arranged on the second filling piece and a clamping assembly arranged on the connecting assembly. According to the foundation pit anti-falling warning device, through the connecting assemblies and the clamping assemblies, all the filling pieces in the filling units can be tightly fixed, and therefore the problem that the overall structure is unstable due to height increase is avoided. The protection safety of the foundation pit is remarkably enhanced, and meanwhile the stability and reliability of the warning device on the filling piece under diversified environmental conditions are guaranteed.
Owner:GUIZHOU POWER GRID CO LTD

Stacking and assembling hanging bracket for pressure containers

The invention relates to the technical field of hoisting equipment, in particular to a pressure vessel stacking and assembling hanging bracket which comprises a fixed supporting column, a supporting cross beam, a sliding mechanism, a lifting mechanism and a hoisting mechanism, the fixed supporting column is fixedly installed on the ground, and the supporting cross beam is fixedly installed at the top of the fixed supporting column; through cooperation of a transmission clamping groove and a transmission protruding block on the metal transmission belt, the transmission efficiency of the metal transmission belt can be improved, the slipping phenomenon of the transmission belt is reduced, and effective transmission of power in the transmission process is ensured, so that the situation that due to different transmission efficiencies of two transmission pieces, the rotating angles of rotating clamping arms on the two sides are different is avoided; according to the pressure vessel clamping device, the problem that clamping force is not uniform or clamping is not stable is solved, the rotary clamping arm can abut against the side wall of the pressure vessel, therefore, firm clamping and fixing of the pressure vessel are achieved, and safety and stability are guaranteed.
Owner:HEZE UNIV

Pouring forming process of inductor

The invention belongs to the technical field of electronic equipment, and particularly relates to a pouring forming process of an inductor. A pouring forming process of an inductor comprises the following steps that S1, a conductor coil (2) with a bent part (3) is prepared; s2, the conductor coil (2) is placed in a cavity of a pouring mold (1), then a pouring material composite material is poured into the cavity of the pouring mold (1) through a pouring runner, and a preliminary product of the poured inductor is obtained; and S3, carrying out curing treatment on the primary product of the cast inductor obtained in the S2 to obtain a finished product of the cast inductor. According to the pouring forming process of the inductor, the problems that due to the fact that iron powder at the bent positions of the two ends of an existing conductor is not pressed compactly, the side wall is prone to cracking after the inductor is formed, and the reliability and the yield are low due to the fact that large forming pressure is required in the process of pressing forming are solved, and the obtained pouring forming process of the inductor is simple; the inductor is excellent in performance, and the yield of the poured inductor is improved.
Owner:HUACUI MICROMAG ELECTRONICS (JIANGSU) CO LTD

A sanitary three-way valve

This utility model discloses a sanitary three-way valve, comprising a valve body, a valve cover connected to the valve body, a drive component, and a valve core. The valve cover has an outlet end, and the valve core is connected to the drive component and disposed inside the valve body. Specifically, the valve cover consists of a first valve cover, a second valve cover, and a middle valve cover arranged symmetrically, perpendicular to the first valve cover. A reset assembly is disposed between the valve body and the first valve cover. The reset assembly includes a support seat, a spring, and a positioning part. The valve body has a mounting through hole, the support seat is disposed in the mounting through hole, the spring is disposed in the telescopic groove and forms a telescopic cooperation with the positioning part, the first valve cover has a positioning groove, and the positioning part is tightly disposed in the positioning groove. A fastener is disposed on the side of the first valve cover facing the valve core to form a sealing cooperation with the valve body. The purpose of this utility model is to provide a sanitary three-way valve with the advantages of compact structure, improved installation efficiency, and avoidment of structural instability inside the valve body.
Owner:黄黎红

A side-hung light box

The utility model relates to a lamp box mounting technical field especially a side hanging type lamp box, a side hanging type lamp box, including vertical fixed installation's riser, is equipped with the lighting window on the riser, the rotatable lamp box is rotatably installed on the riser through the shaft, the lamp for lighting is installed in the lamp box, and the lamp box can be maintained after turning over upwards. This side hanging type lamp box contains a piece of vertical fixed riser, and the riser is equipped with the lighting window for the light transmission, and the riser is connected with the lamp box that can turn over upwards through the shaft body, and the lamp box is internally provided with the lamp for providing the lighting, when daily using, the light of the lamp can be projected outward through the lighting window, satisfies the illumination or demonstration demand, when the lamp needs to overhaul, replaces or cleans and maintains, only needs to turn over the lamp box upwards, can let the internal lamp completely expose, need not to dismantle the lamp box whole, convenient operation and can complete the maintenance work fast, guarantees the continuous stable operation of the lamp box.
Owner:JIANGSU HUATENG IND TECH CO LTD

Adjustable axial flow fan

PendingCN119321414Aavoid structural instabilityPump componentsPump controlImpellerGear drive
The adjustable axial flow fan comprises a machine shell, a motor support and an impeller, and is characterized in that the motor support is arranged in the middle of the machine shell through a connecting plate between the motor support and the inner end face of the machine shell, and the impeller is rotationally arranged in front of the motor support and rotationally arranged in the middle of the machine shell. The rotating mode can be achieved by fixing the transmission part of the blade through the electromagnetic valve so that the transmission part can be kept in a stable state during rotation, the transmission structure is achieved through the gear, the situation that the overall structure is unstable due to the vulnerability of the transmission rod is avoided, and direct manual intervention is not needed by adopting the mechanical adjustment mode in the scheme.
Owner:DEZHOU LONGYU AIR CONDITIONING EQUIP CO LTD

A plate-fin heat exchanger

The utility model discloses a kind of plate-fin heat exchangers, belong to heat exchanger technical field, including shell, several square tubes are equipped on the shell, the several square tubes are all communicated with shell interior;Core is arranged in the shell interior, the core includes plate-fin, first sealing strip and second sealing strip, second sealing strip is arranged in the upper and lower end of plate-fin, and plate-fin includes vertical plate and horizontal plate, the vertical plate and horizontal plate are spaced apart and arranged several, and first sealing strip is arranged between vertical plate and horizontal plate. It can effectively increase heat exchange area under the premise of guaranteeing structural stability, and improve heat exchange efficiency;And welding seam length can be greatly reduced, and installation efficiency is improved.
Owner:山东国创燃料电池技术创新中心有限公司

Anchor-shotcrete supporting structure for tunnel construction

The utility model discloses an anchoring and shotcreting supporting structure for tunnel construction. The anchoring and shotcreting supporting structure comprises a plurality of reinforcing anchor rods and shotcreting concrete which is of an integrated structure and covers the top of a tunnel and the side wall of the tunnel. The head end of each reinforcing anchor rod penetrates into the rock mass, reinforcing plates are connected between the tail ends of the reinforcing anchor rods at the top of the tunnel and the tail ends of the reinforcing anchor rods at the lower end of the side wall of the tunnel, and reinforcing meshes are laid between the adjacent reinforcing plates. And the reinforcing plate and the tail end of the anchor rod are embedded in the sprayed concrete. The reinforced connecting structure is arranged between the anchor rods, so that the stability of an anchor rod jet supporting structure is improved.
Owner:SINOHYRDO ENG BUREAU 3 CO LTD

Water channel with steel corrugated plate structure

The utility model relates to the technical field of water conservancy facilities, and discloses a steel corrugated plate structure canal which comprises canal assemblies, a plurality of canal assemblies are sequentially connected in the length direction of the canal, each canal assembly comprises a corrugated steel plate, a longitudinal corrugated plate and an upper transverse edge, and the longitudinal corrugated plate is fixedly installed on the inner bottom wall of the corrugated steel plate. The outer side of the upper transverse edge is fixedly connected with a lower folding edge used for limiting downwards, the bottom wall, the side edges, the upper transverse edge and the lower folding edge of the water channel of the steel corrugated plate structure are integrally formed by forging and pressing the corrugated steel plates in the transverse corrugation direction, and no connecting piece is arranged. The integrally forged and formed structure avoids the problem that the structure is unstable due to looseness of the connecting piece, and the integrally formed structure can better maintain the overall integrity and stability when facing water flow impact, foundation settlement, temperature change and other complex external factors.
Owner:HENGSHUI FANGHUI METAL PROD CO LTD

An auxiliary fixing device for PC component production

ActiveCN224275523Uavoid structural instabilityClamp firmlyCeramic shaping apparatusRebarMechanical engineering
This utility model relates to an auxiliary fixing device for PC component production, including a frame. The frame is composed of L-shaped steel plates forming a rectangle. Adjacent L-shaped steel plates are connected by quick-locking components. Several clamping components for clamping reinforcing bars are installed on the L-shaped steel plates. A waist-shaped groove is provided on the horizontal folded edge of the L-shaped steel plate. The clamping components are detachably installed on the horizontal folded edge of the L-shaped steel plate by bolts passing through the waist-shaped groove. A non-removable plate is provided on the inner side of the vertical end of the L-shaped steel plate. The non-removable plates are connected end-to-end and fixed through the area enclosed by the L-shaped steel plates. This utility model achieves rapid fixing through the quick-locking and clamping components, and has a simple structure. The clamping components can fix reinforcing bars of different structures and diameters, and are suitable for fixing reinforcing bars of various specifications.
Owner:YIXIAN YIXIN ASSEMBLED BUILDING TECH CO LTD

A granulation apparatus for preparing polypropylene composite materials

This utility model provides a granulation device for preparing polypropylene composite materials, belonging to the field of polypropylene composite material granulation technology. It includes an extruder and a pelletizer, and further includes a cooling assembly. The cooling assembly is located on one side of the extruder and includes a cooling water tank disposed between the extruder and the pelletizer. Two baffles are installed inside the cooling water tank, and a stainless steel heating plate is installed at the bottom of the cooling water tank. By setting up the cooling assembly, firstly, by inserting two baffles inside the cooling water tank, the inner space of the cooling water tank is divided into three independent areas using the cooperation of the two baffles. High-temperature cooling water is used to pre-cool the material strip to avoid structural instability caused by sudden cooling. Then, deep cooling is achieved through stepped cooling, reducing the temperature difference between the inside and outside of the material strip, reducing the internal stress generated inside the material strip, and improving the granulation quality of the polypropylene composite material granulation device.
Owner:FOSHAN HUAPU STAR PLASTIC CO LTD

Artware ornament

The utility model relates to an ornament, in particular to a handicraft ornament, which comprises a support and an ornament body arranged on the support, a positioning mechanism is arranged on one side of the ornament body on the support, and the support comprises a base and a spiral spring rotationally connected onto the base. A spring box and an upper rotating shaft are arranged at the end, close to the positioning mechanism, of the spiral spring, the end, away from the positioning mechanism, of the spring box is connected with the spiral spring, the spring box and the upper rotating shaft are both located in the base, a rotating disc is fixedly connected to the top of the upper rotating shaft, and an iron block is embedded in the top of the rotating disc; and a block-shaped magnet is embedded at the bottom of the placing article. According to the handicraft ornament, the ornament body can be displayed by 360 degrees, watching from different visual angles is facilitated, a more amazing display effect and a more amazing decoration effect are obtained, and the handicraft ornament can be attracted to objects such as a refrigerator through the strip-shaped strong magnet, so that suspension type display is achieved.
Owner:DONGGUAN SANXIE CRAFTS CO LTD