196results about How to "Improve bending ability" patented technology

The invention relates to the technical field of civil engineering and composite materials, in particular to a fiber composite anchor rod intelligent design method and system.The method comprises the following steps that carbon fibers and glass fibers are used for manufacturing a carbon-glass hybrid anchor rod core part, and meanwhile, LCP fiber bundles are used for weaving the surface of the carbon-glass hybrid anchor rod core part to form a woven layer; winding LCP fiber bundles on the surface of the braid layer to form LCP fiber winding ribs, so as to obtain the fiber composite anchor rod; adjusting the adjustable parameters of the fiber composite material anchor rods to produce a plurality of fiber composite material anchor rods so as to construct a production parameter prediction model, and using the production parameter prediction model to obtain production parameter prediction values of the fiber composite material anchor rods when anchor rod performance parameters are given; and producing the fiber composite anchor rod according to the production parameter predicted value. By means of the method, the fiber composite anchor rod high in mechanical property and economical efficiency can be produced, the production efficiency can be improved, and the production cost can be reduced.

The invention relates to the technical field of fire-resistant cables in a dynamic environment, and provides a fire-resistant cable suitable for a floating power generation ship in a dynamic environment, which comprises a cable core and a cable outer protection layer, a plurality of cable cores are arranged in the cable outer protection layer, after the cable cores are arranged in the cable outer protection layer, a filling layer is arranged in gaps among the cable cores, and the filling layer is formed by fixedly filling a plurality of strands of filling ropes in the gaps through a water-blocking material; the filling layer can effectively fill gaps among the cable cores, the multiple strands of filling ropes are fixedly filled in the gaps through the water-blocking material, and the filling ropes in the filling layer can absorb water and expand to fill the gaps, so that the water-blocking performance is further improved, and the service life of the cable is prolonged. Through the structure, the structural stability of the cable can be enhanced, the tensile and bending resistance performance is improved, the fireproof performance of the cable is improved, and the water-blocking, moisture-proof and anti-corrosion performance is enhanced.

The invention belongs to the technical field of concrete slabs, and particularly discloses a preparation method and application of a fiber-reinforced autoclaved aerated concrete plank.The preparation method comprises the steps that pretreated raw materials are prepared according to a formula; uniformly distributing and mixing the raw materials to obtain slurry I, slurry II and slurry III in sequence; pouring the slurry III into a mold, and standing; demolding and cutting the green body; the cut blank is subjected to steam curing and cooling, and then a concrete slab finished product is prepared; structural steel bars are replaced with fibers, the steel bar consumption is reduced, steel bar corrosion caused by cutting is avoided, and therefore the plate yield and the production efficiency are improved, waste of waste is avoided, and the actual preparation efficiency is improved; and secondly, by adopting the fibers and the active exciting agent, the concrete slurry is more uniformly aerated, and the fibers are uniformly distributed in a multi-stage dispersion manner, so that the bending resistance, the compression resistance, the crack resistance, the nail-holding power, the mildew resistance and the saltpetering resistance of the concrete slab are effectively improved, and the product quality is remarkably improved.

The utility model relates to an automobile body side face anti-collision structure, an automobile body and an automobile, the automobile body side face anti-collision structure comprises threshold beam assemblies, a seat cross beam assembly and a battery pack cross beam assembly, and the threshold beam assemblies are arranged on the two sides of the automobile body side face anti-collision structure; the two ends of the seat cross beam assembly are connected with the doorsill beam assemblies on the two sides of the vehicle body side face anti-collision structure correspondingly. The battery pack cross beam assembly is connected below the seat cross beam assembly, and the seat cross beam assembly and the battery pack cross beam assembly are in T-shaped connection. The two ends of the seat cross beam assembly are connected with the threshold beam assemblies on the two sides of the vehicle body side face anti-collision structure correspondingly, and an I-shaped force transmission structure is formed. The seat cross beam assembly and the battery pack cross beam assembly are in T-shaped connection, and the intrusion amount of a battery pack and a vehicle body can be reduced through collision impact of a T-shaped connecting structure over against the side face; the connection mode can also improve the bending resistance of the seat cross beam assembly and the battery pack cross beam assembly, so that adverse effects on the living space of passengers in the vehicle or the safety of the battery pack are avoided.

A giant modular wind power system comprises a wind wheel, and the wind wheel comprises at least two sets of stacked blades. Each group of stacked blades comprises at least two blades which are arranged up and down, and the upper and lower blades form a truss structure through a supporting body, so that the bending resistance of the stacked blades is more than three times higher than that of a single blade. The strength, the bending resistance and the fatigue resistance of the stacked blades can be greatly improved, the stacked blades cannot be damaged even if strong wind is encountered, then the safety of the whole wind wheel and the tower is protected, and economic losses are reduced; the wind power system can emit green electricity everywhere globally without going uphill and downsea, when the fan blades are made of aluminum materials, the service life can reach at least 60 years, and the fan blades can be recycled after being abandoned and cannot pollute the environment; and all parts can be delivered according to the size of a container, so that global barrier-free and low-cost transportation is realized.

The invention provides a large-span formwork-removal-free floor slab, a floor slab mounting structure and a construction method. The large-span formwork-removal-free floor slab comprises prefabricated slabs, cast-in-place slabs and truss steel bars. The cast-in-place slab is formed at the upper end of the prefabricated slab through concrete pouring; the truss steel bars comprise upper-layer steel bars, lower-layer steel bars and a plurality of hook steel bars. By using the combination form of the prefabricated slab and the cast-in-place slab, the formwork does not need to be disassembled in the construction process, so that the construction period is shortened, the labor cost is reduced, and the construction efficiency is improved. The upper-layer ribs and the lower-layer ribs of the truss steel bars are arranged at the top and the bottom of the cast-in-place slab respectively, a good stress system is formed, the bearing capacity and the bending resistance of the floor slab can be improved, the hook steel bars are arranged on the upper portion of the prefabricated slab, the upper-layer ribs and the lower-layer ribs are connected through the extending parts, and stress transmission among different parts is more uniform. The stability of the whole structure is enhanced, the number of supporting structures can be effectively reduced, the flexibility and the utilization rate of space are improved, and the structure is suitable for large-space building application.

The invention is suitable for the technical field of medical instruments, and provides equipment capable of monitoring central venous pressure in real time and a using method. The central venous pressure equipment comprises a central venous catheter connector and a central venous catheter connector, wherein one end of the central venous catheter connector is communicated with a central venous catheter; an infusion tube; and the number of the fixing assemblies is three. According to the invention, the pressure sensor is manually operated to drive the rectangular frame to enter the central venous pressure sensor connector, and when the surface of the pressure sensor is in contact with the inner surface of the central venous pressure sensor connector, the first spring drives the conical block to enter the first through hole formed in the rectangular frame; according to the utility model, rapid installation and automatic self-locking processing are carried out on the pressure sensor and the central venous pressure sensor connector, and the phenomenon that the equipment falls off due to external acting force in the use process is prevented, so that the installation portability and firmness of the product in the actual use process are improved.

The utility model provides a kind of special anti-toppling jig for grab assembly, it is related to the assembly auxiliary equipment field of grab production and manufacture, it includes bottom support, two vertical supports are fixed on the bottom support, two the vertical support is spaced and parallelly arranged along the length direction of bottom support, and all vertical to the plane where bottom support is, the lower end of vertical support is fixedly connected with bottom support by welding mode, the upper end of vertical support is provided with circular slot, the radian of circular slot is compatible with the radian of outer circumferential surface of grab middle beam shaft, the utility model solves the technical problem that operating personnel in the middle beam bottom operating surface faces high-altitude falling risk when grab assembly in prior art, operation space is small, leading to big operation difficulty and welding fume is difficult to diffuse and harm health.

The invention discloses an automatic regulation and control side coaming device of a multi-point mold, and relates to the technical field of molds, the automatic regulation and control side coaming device of the multi-point mold comprises a lower mold bottom plate used for bearing a multi-point mold body, the upper end of the lower mold bottom plate is fixedly connected with two fixed outer coamings which are oppositely arranged, and two fixed inner coamings are fixedly arranged between the two fixed outer coamings; the upper end of the lower die bottom plate is further connected with four movable surrounding plate assemblies, and each movable surrounding plate assembly comprises a movable surrounding plate, a base and an electric cylinder push rod. The fixed outer coaming, the fixed inner coaming and the movable coaming assembly abut against the outer side of the multi-point mold body, so that the bending resistance of the multi-point mold body can be enhanced, the usable range of the mold is widened, the forming precision of the mold is improved, and the service life of the mold is prolonged.

The utility model discloses an air switch rack with an external protection structure, which comprises an air switch rack upper body, and the bottom of the air switch rack upper body is fixedly connected with an air switch rack lower body clamping plate. According to the utility model, the aerogel felt heat insulation frame in the air switch support upper body and the heat insulation structure layer on the inner side of the air switch support lower body clamping plate can prevent the air switch support upper body and the air switch support lower body clamping plate from being softened due to heat of electric power when an internal air switch is used; the outer side of the air switch support lower body clamping plate is reinforced by the metal reinforcing sheet, so that the air switch support lower body clamping plate is not easy to bend and break in use; and finally, a polyurethane layer and a rubber anti-impact layer in the protection structure layer can prevent the air switch support lower body clamping plate from being bent and then broken due to the fact that external impact force exerts pressure on the air switch support lower body clamping plate, so that the air switch support lower body clamping plate has the advantage of being good in high-temperature-resistant and anti-bending effect, and the high-temperature-resistant and anti-bending effect in the use process of the air switch support is improved.

The utility model provides a robot guide rail stopping device which comprises a horizontally-arranged guide rail strip, the lower surface of the guide rail strip is provided with a T-shaped groove which is arranged in the length direction of the guide rail strip and used for limiting the position of an idler wheel on the top of a robot, and the upper surface of the guide rail strip is provided with a strip-shaped groove. Two travel switches used for controlling the robot to move or not are arranged on the upper side of the guide rail strip, contact parts of the travel switches penetrate through the strip-shaped groove and extend into the T-shaped groove, a connecting plate is installed at the tops of the travel switches, a round hole is formed in one side face of the connecting plate, and a screw rod is inserted into the round hole; the screw and the strip-shaped groove are arranged in parallel, the two ends of the screw are fixedly connected with the guide rail strip, nuts are arranged on the two sides of the connecting plate in the length direction of the screw, the nuts are in threaded connection with the screw, and a reinforcing piece is installed on the upper surface of the guide rail strip. The guide rail strip structure has the advantages that the strength of the guide rail strip structure with the strip-shaped grooves is improved.

The present invention relates to the field of ceramic materials, specifically a high bending resistance ceramic material for 5G communication base stations and a preparation method thereof. The steps include: calcination preparation of bending resistance sintering aids; preparation of HA-coated ceramic sintering powder; composite and column sintering of ceramic particles. The present invention uses polyacrylamide / L-dopamine membrane as an organic template to induce HA mineralization, which ensures that the HA crystal forms an ordered structure, so that the crystal obtains good mechanical properties, effectively reduces the problem of porosity in ceramics caused by grain growth, and improves the density of ceramics. In addition, some pores and cracks are inevitably generated in the ceramic green body during the sintering process. When the finished ceramic is subjected to an external load, the cracks will continue to expand. At this time, the HA crystals and cracks meet to consume the energy of the external load, thereby enhancing the strength of the ceramic and greatly improving the bending resistance of the ceramic material.

The invention relates to a vehicle body rear structure for a vehicle and the vehicle, the vehicle body rear structure for the vehicle comprises a side wall inner plate which is vertically arranged, and the side wall inner plate comprises an upper wall plate and a rear wheel cover which are sequentially connected from top to bottom; the C-shaped ring assembly is connected to the inner wall face of the side wall inner plate, the C-shaped ring assembly comprises a vertically-arranged lower reinforcing arm, a front reinforcing arm and a rear reinforcing arm, the front reinforcing arm and the rear reinforcing arm are sequentially arranged from front to back, the front reinforcing arm and the rear reinforcing arm at least partially cover the inner wall face of the upper wall plate, the upper end of the lower reinforcing arm is in lap joint with the front reinforcing arm and the rear reinforcing arm, and the lower end of the lower reinforcing arm is in lap joint with the rear reinforcing arm. At least part of the lower reinforcing arm covers the inner wall face of the rear wheel cover, and a cavity is defined by the front reinforcing arm, the rear reinforcing arm, the lower reinforcing arm and the inner wall face of the side wall inner plate. By means of the design, the front reinforcing arm and the rear reinforcing arm do not occupy the space of the inner side of the rear wheel cover, occupation of the vehicle body rear structure on the vehicle interior space is reduced, and the requirement of a user for the large space in a trunk is better met.

This utility model discloses an installation structure for a sunroom, relating to the field of building structure technology. It includes a base, with a top column fixedly connected to the top of the base. A roof structure is installed at the top of the top column. The roof structure includes a first connecting beam fixedly installed on one side of the top column. A first horizontal beam is fixedly connected to one end of the top column, and a first inclined beam is fixedly connected to the top of the top column. A top structure is fixedly connected to the top of the first inclined beam. This utility model, through the design of the support components and the top structure, uses a support component consisting of a first support member, a connecting block, and a fifth connecting member, vertically connecting the first and second horizontal beams. This evenly transfers the roof load to the base, significantly improving the bending resistance of large-span roofs and solving the problem of insufficient structural load-bearing capacity preventing the use of large-span structures. The design of the support components and the top structure makes this sunroom suitable for building large-span sunrooms.

The invention relates to a supporting system for a rectangular pier column elevated cantilever cover beam, which comprises a supporting assembly, a supporting rod assembly, a supporting rod assembly, a supporting rod assembly, a supporting rod assembly and a supporting rod assembly, and is characterized in that the supporting assembly is fixedly mounted on a pier column through a bracket assembly; the platform assembly is fixedly installed at the top end of the supporting assembly, located at the bottom end of the cover beam and suitable for construction; the bracket assembly comprises a bracket body and a connecting unit, one end of the connecting unit is embedded in the pier column, the bracket body is embedded in the other end of the connecting unit, and the bracket body is suitable for bearing the supporting assembly. The bracket body of the supporting system is accurate in mounting position and high in overall stress stability, and deformation and deviation are avoided; the supporting assembly is used for supporting the cover beam, has the advantages of being large in load capacity and good in interchangeability, can be suitable for construction of various elevated cover beams and is wide in application range. And the platform assembly is fixedly installed at the top end of the supporting assembly and the bottom end of the cover beam, construction of workers is facilitated, convenience and rapidness are achieved, a protective net is further arranged at the outer end of the platform assembly, and safety is high.

This utility model discloses a high-rigidity, lightweight double wishbone front lower control arm, specifically relating to the field of automotive suspension system technology. It includes a control arm body with multiple hollowed-out grooves on its surface. Two bushing assemblies are located on one side of the control arm body, and a ball joint assembly is fixedly mounted on the other side. A reinforcing mechanism is provided on the surface of the control arm body, including a fixed cavity fixedly located inside the control arm body at the connection points between the control arm body and the bushing and ball joint assemblies. Reinforcing ribs are fixedly mounted inside the fixed cavity. An annular reinforcing ring is fixedly mounted at the connection points between the control arm body and the bushing and ball joint assemblies, and several reinforcing ribs are evenly distributed on the surface of the annular reinforcing ring. This utility model achieves the core functions of lightweight load-bearing, precise guidance, and long-term protection through the synergistic effect of its components.

The invention discloses a coiling type stretching extraterrestrial celestial body landing mechanism and a design method thereof, and belongs to the technical field of machinery. Compared with a traditional landing mechanism, the landing mechanism not only can be stored in a smaller space before a spacecraft is launched, but also can be unfolded in the one-dimensional direction in the unfolding process, envelope of mechanism stretching movement is effectively reduced, and the space utilization rate is increased. Therefore, the space can be saved for one launching task, other extra load equipment can be installed, and the efficiency of the task is improved; the cross section size and the configuration of the coiled extension arm are improved, so that the weight is effectively reduced while the bearing capacity of the landing mechanism is ensured; the optimization result is obtained through a sequence planning method instead of manual modification of iterative design, and the effectiveness of the result can be ensured. Compared with a traditional coiled extension arm, the bending resistance is improved, it is guaranteed that the landing mechanism can bear landing impact in the landing stage, and safe landing of the detector is achieved.

This invention discloses a reinforcement structure and construction method for reconstructing load-bearing components using prestressed porous slab openings. The method includes site survey and structural assessment; reinforcement design calculations; construction preparation and opening pretreatment; prefabrication of steel trusses and installation of grouting pipes; installation and positioning of steel trusses; installation of grouting sealing templates; grout preparation and pressure grouting; monitoring and pressure holding during grouting; curing and template removal; repair of openings on the slab surface; treatment of the slab bottom and bonding of carbon fiber cloth; and quality inspection and acceptance. This invention provides a safe, efficient, economical, and minimally impactful innovative solution for reinforcing and improving the performance of masonry structures by opening openings in prestressed porous slabs.

The invention provides an offshore photovoltaic steel pipe and truss combined pile which comprises a steel pipe of an upper pile section and a truss of a lower pile section, the truss can sink into seabed soil, and the transverse sectional area of the truss is larger than that of the steel pipe; a connecting section is connected between the bottom of the steel pipe and the top of the truss, the connecting section is provided with a closed section extending into the truss at the lower end of the steel pipe, the truss is provided with an extending section at the top end of a vertical rod of the truss, and lap joint parts which are connected and matched with each other are arranged between the closed section and the extending section. The steel pipes and the trusses are combined to form the combined pile, and the combined pile is of a steel pipe structure above the lowest water level (including the low tide level and the wave trough), so that wave force and ice pressure can be reduced; meanwhile, the truss structure below the lowest water level can further improve the bending resistance and horizontal bearing resistance of the pile foundation, and under the same material consumption, the bending resistance of the truss structure is improved by several times compared with a pile of a solid web structure.

The utility model discloses a kind of widening structure of municipal road, including the filling plate as widening base layer, the accommodating groove of downward recess is equipped on filling plate upper surface, the rubber particle layer solidified by cementing agent is filled in accommodating groove, the groove bottom of accommodating groove is equipped with reinforcing plate that is interlaced longitudinally and transversely, reinforcing plate is fixedly connected with filling plate, for enhancing the overall stiffness and deformation resistance of widening structure, the bottom of filling plate is connected with connecting assembly, connecting assembly includes the connecting column inserted into soil, the outer wall of connecting column is equipped with the plug-in cone for increasing friction, connecting column is equipped with expansion assembly in, expansion assembly includes the pull block for making the outer wall of connecting column outwardly offset, the surface of filling plate, connecting assembly and expansion assembly is equipped with rust-proof paint. By filling plate and rubber particle layer combination, it is convenient to quickly lay, also can cope with certain degree of thermal expansion and cold shrink, the cooperation of connecting column and expansion assembly realizes firm anchoring with ground.

The invention discloses an insulator fixture with a locking structure. A clamping piece is located below a fastening boss and arranged on an insulating spacer through a fastening bolt; a connecting thread and a positioning thread are arranged on the rod portion of the locking bolt, an internal thread matched with the connecting thread is arranged in the connecting section of the locking through hole, the positioning thread extends into the locking cylinder to be connected with the internal thread, a guide protruding strip is arranged on the outer wall of the locking cylinder, and a guide groove is formed in the inner wall of the locking through hole in the axial direction of the locking through hole. And the locking cylinder is provided with a wedge-shaped groove clamped at the thread of the fastening bolt, and the wedge-shaped groove forms locking. The fastening bolt is rotated to enable the clamping piece to make close contact with the cable and fix the cable on the fastening boss below the fastening boss of the insulating spacer, when the locking bolt rotates, the guide protruding strip drives the locking cylinder to move horizontally under the action of the guide groove, and finally the wedge-shaped groove of the locking cylinder is clamped at the thread of the fastening bolt to be locked. Accurate control and firm locking of the position of the clamping piece are achieved.

This utility model discloses a three-section drawer slide, including a fixed rail, a middle rail, and a movable rail. The middle rail has a first guide portion and a second guide portion. The first guide portion movably engages with the fixed rail, and the second guide portion movably engages with the movable rail. A first ball bearing assembly is provided between the first guide portion and the fixed rail, and a second ball bearing assembly is provided between the second guide portion and the movable rail. The advantages of this three-section drawer slide are: the use of a cross-shaped engagement and a three-sided ball bearing engagement structure makes the engagement between the fixed rail and the middle rail, and between the middle rail and the movable rail, more stable and reliable. It also ensures that the center of gravity of the movable rail and the middle rail coincides with the center of the fixed rail, effectively enhancing the overall strength of the slide. This results in more stable and smooth operation of the slide, leading to more stable and smooth drawer opening and closing. During use, the slide is less prone to bending and deformation, improving its bending resistance and load-bearing capacity.

This utility model relates to a charging pole transformer substation. The technical problem this utility model aims to solve is to provide a charging pole transformer substation. The technical solution adopted by this utility model includes a transformer substation frame, a transformer substation door assembly, and a transformer substation rainproof top cover. The transformer substation frame includes a load-bearing beam assembly and supporting crossbeams. The load-bearing beam assembly includes a load-bearing beam, a load-bearing beam end cap, and a main connecting pin for the crossbeam. The load-bearing beam includes a rounded transition portion and a connecting portion. The connecting end of the load-bearing beam is provided with a T-shaped interface, and the inner and outer sides of the load-bearing beam are provided with T-shaped limiting ports. The advantages of this utility model are: the transformer substation frame is connected by a rounded transition of the load-bearing beam, reducing stress concentration and improving bending resistance and seismic performance; the load-bearing beam end cap and the crossbeam are fixed together by three-point screws through the connecting pin connection hole, the crossbeam threaded hole, and the end cap connection hole, forming a multi-point locking structure, resulting in a stable connection, high strength, and resistance to loosening.

The utility model provides a doorsill stand column reinforcing assembly, an automobile body structure and an automobile. The doorsill stand column reinforcing assembly comprises a doorsill stand column inner plate assembly, a doorsill stand column outer plate assembly and a reinforcing piece. The doorsill stand column inner plate assembly is connected with the doorsill stand column outer plate assembly, and the doorsill stand column inner plate assembly and the doorsill stand column outer plate assembly are matched to form a force transmission cavity. The reinforcing piece is arranged in the front end area in the force transmission cavity in the front-back direction of the vehicle, and the reinforcing piece is connected with the threshold stand column inner plate assembly and the threshold stand column outer plate assembly. According to the utility model, the supporting stability of the force transmission cavity can be improved through the reinforcer, so that the bending resistance of the front end of the doorsill is enhanced, and the impact resistance of the front end of the doorsill to chassis parts such as tires is greatly improved during offset collision; the reinforcing piece is connected with the doorsill stand column inner plate assembly and the doorsill stand column outer plate assembly, the welding strength between the inner plate structure and the outer plate structure of the doorsill stand column reinforcing assembly can be improved, and the cracking risk of doorsill welding spots is reduced.

The utility model relates to the technical field of vehicles, in particular to an anti-collision beam assembly structure and a vehicle, the anti-collision beam assembly structure comprises an anti-collision beam and an energy absorption box, one end, in the first direction, of the energy absorption box is connected with the anti-collision beam, the other end of the energy absorption box is used for being connected with a vehicle body connecting piece, an energy absorption cavity is formed in the energy absorption box, and the anti-collision beam comprises a mounting plate; a part of the mounting plate protrudes in the direction away from the energy absorption box so that a groove can be formed in the side, facing the energy absorption box, of the mounting plate, the end, in the first direction, of the energy absorption box is provided with an extending piece, and the extending piece correspondingly extends into the groove and is connected with the groove wall of the groove, so that the bearing capacity of the anti-collision beam assembly structure is further improved, and the service life of the anti-collision beam assembly structure is prolonged. And the safety performance of the vehicle is effectively improved.

The invention provides a prestressed pipe jacking device which comprises a steel sleeve and a plurality of steel sleeves, the steel sleeve comprises a plurality of transverse steel sleeves and a plurality of vertical steel sleeves, each transverse steel sleeve comprises a plurality of pipe joints, the transverse steel sleeves are arranged in parallel, and the vertical steel sleeves are perpendicular to the transverse steel sleeves; the counter-force base is fixed on the ground, and the counter-force base is connected with the transverse steel sleeve and the vertical steel sleeve; and the connecting mechanism is connected with the plurality of pipe joints, and is used for connecting the pipe joints with the counter-force base. The connecting mechanism comprises a steel strand, and the bending resistance of the pipe jacking structure is improved by applying prestress to the steel strand. The prestressed steel strand and the steel sleeve are connected into a whole through the steel plate component, the dead weight of the whole structure is reduced, concrete is prevented from being pulled and cracked, the bending resistance is further improved, and the longer pipe jacking length can be achieved.

The utility model relates to the field of wind turbine generator set corollary equipment, in particular to a fan foundation reinforcing assembly and a wind turbine generator set. The draught fan foundation reinforcing assembly comprises an annular concrete beam used for being arranged on the outer side of a foundation ring or a steel tower drum of a draught fan in a sleeving mode; the first end of the first reinforcing piece is fixedly connected with the annular concrete beam, and the second end of the first reinforcing piece is used for being assembled in a foundation stand of the draught fan. In the fan foundation reinforcing assembly provided by the utility model, the annular concrete beam is sleeved on the outer side of the foundation ring or the steel tower drum of the fan, so that the foundation ring or the steel tower drum of the fan is reinforced from the outer side; furthermore, the first end of the first reinforcing member is fixedly connected with the annular concrete beam, and the second end of the first reinforcing member can be assembled in the foundation pillar of the fan, so that the foundation ring or the steel tower drum of the fan and the foundation pillar of the fan are stably reinforced together by utilizing the annular concrete beam and the first reinforcing member, and the bending resistance of the fan foundation is improved; and the reinforcing effect is obviously improved.

The application provides an A-pillar structure and a vehicle, which can improve the ability of the A-pillar structure to cope with vertical load and horizontal load. According to an example of the application, the A-pillar structure comprises: an A-pillar lower reinforcement having a lap top wall and a connecting bottom wall opposite to the lap top wall, a lap area being formed between the lap top wall and the connecting bottom wall; an A-pillar upper reinforcement having a lap segment extending into the lap area, the lap segment being in lap fit with the lap top wall; a support being located between the lap segment and the connecting bottom wall, and fixedly connecting the lap segment and the connecting bottom wall; and a connecting plate being located in the lap area and comprising a first part and a second part connected with each other, the first part being fixedly connected with the lap segment, and the second part being located at an end of the first part away from the lap segment, and the second part being fixedly connected with the lap top wall.

The application provides a design method of a soft grabbing robot, which comprises the following steps: firstly, different hybrid variable stiffness mechanisms are designed, and corresponding hybrid variable stiffness soft actuators are prepared; then, a pneumatic driving test platform and a variable stiffness performance test platform are built; then, the bending performance test and the stiffness test are performed on each hybrid variable stiffness soft actuator; finally, the bending performance and the variable stiffness capacity of the hybrid variable stiffness soft actuators are compared and analyzed, and the hybrid variable stiffness soft actuator with the best comprehensive performance is selected. Three different actuators are prepared, the pneumatic driving test platform and the variable stiffness performance test platform are built, and the bending performance test and the stiffness test are performed on the three prepared hybrid variable stiffness soft actuators, so that the bending performance and the variable stiffness performance are simultaneously considered.

The invention discloses a multidirectional forging and extruding hydraulic machine with a straight column horizontal loading system, which comprises a rack, a vertical oil cylinder for extruding along the vertical direction and a horizontal oil cylinder for extruding along the horizontal direction, and the vertical oil cylinder and the horizontal oil cylinder are arranged on the rack; the frame structure is formed by an upper semicircular beam, a lower semicircular beam, a left stand column and a right stand column, the left stand column and the right stand column are supported on the left side and the right side between the upper semicircular beam and the lower semicircular beam, and the steel wire winding layer is wound on the outer side of the frame structure. The height of the right side of the upper end of the right stand column is not larger than the height of the left side, the height of the right side of the lower end of the right stand column is not smaller than the height of the left side, and the upper ends and the lower ends of the left stand column and the right stand column are in left-right locking connection with the lower end face of the upper semicircular beam and the upper end face of the lower semicircular beam through concave-convex inserting structures correspondingly. And the requirements of large-tonnage vertical die-splitting swaging and horizontal die-splitting swaging can be met.