21results about How to "Good load bearing" patented technology

The invention provides a linear quenching heat exchanger inlet connecting piece and a quenching heat exchanger thereof. The inlet connecting piece comprises an inlet cone (3), a heat insulating piece (4), a sealing piece (11), a protective sleeve (5) and a cooling medium connecting piece (6), wherein the cooling medium connecting piece (6) is a revolution body of which the cross section shape is a convex curve surface and can be used for better absorbing heat expansion difference stress between an inner pipe (7) and an outer pipe (8) of a double-sleeve heat exchanger element (2); and the protective sleeve (5) has good heat protection effect on a deep-hole welding head and the cooling medium connecting piece (6). The invention has the advantages of simple structure, long service life and short cracked gas retention time, and not only can be used for newly building a linear quenching heat exchanger of an ethylene cracking device, but also can be used for reforming a service linear quenching heat exchanger inlet connecting piece.

The invention discloses a combined roof beam of a main beam and a secondary beam, which comprises the main beam, wherein the main beam is provided with the secondary beam; the main beam is connected with a fastening member; the fastening member is connected with the secondary beam; a plurality of through holes, which are arranged uniformly, are formed on the main beam; the section of the fastening member is U-shaped, and the fastening member is composed of two same wing plates and a back plate; a plurality of mounting pin holes and bayonets are formed on the wing plates; a plurality of through holes are formed on the back plate; and mounting grooves and a plurality of mounting pin holes are formed at the ends of the secondary beam. The combined roof beam employing the technical scheme disclosed by the invention, depending on connection of a hanging plate with the U-shaped connection fastening member, ensures excellent load bearing and anti-seismic effects when the main beam and the secondary beam are combined; in addition, the overall assembly way of the combined roof beam is simple, convenient and quick, and can be promoted in the building field easily.

The invention discloses a carbon fiber paper reinforced thermoplastic resin sandwich composite material. The composite material is formed through compounding two resin skin layers and a core layer positioned between the two resin skin layers, every resin skin layer is a thermoplastic resin composite material layer, and the core layer is a carbon fiber paper reinforcement. The invention also discloses a preparation method of the composite material. Clamping of the carbon fiber paper reinforcement between resins is similar to the effect of steel bars in concrete, so the carbon fiber reinforcement effect of carbon fiber papers is guaranteed, the continuity and the load transmission and dispersion property of the fiber reinforcement are guaranteed, the material is isotropic, and the integral performances of the composite material are improved; and the continuously distributed carbon fibers are in favor of forming effective channels among the carbon fibers in order to well show the conductive, antistatic and electromagnetic shielding functions.

The invention relates to a multi-axis force transducer with a double-bending beam structure. The force transducer comprises an upper cover, a base, a coupling, a gland, elastic bending beams and resistance strain gages stuck to the elastic bending beams, wherein the bottom of the upper cover is fixedly connected with coupling, and the two elastic bending beams are arranged between the upper cover and the base, are arranged in a horizontal crossing mode and are fixed on the base by the gland. By using the two bending beam structures as the elastic elements of a transducer and sticking the resistance strain gages to the corresponding sectional positions to complete the measurement of three forces (in X, Y and Z axes) and one torque (around Z axis), the transducer enables only the corresponding bending beam to generate deformation under the action of a main load, and has the characteristics of simple structure, high measurement accuracy, convenient operation and the like.

The invention is suitable for the field of building transportation, and provides a supporting bed-jig for transportation. The supporting bed-jig comprises a bottom plate and two oblique supports, the bottom plate comprises a first bottom plate and a second bottom plate, and the first bottom plate is retractably mounted on the second bottom plate in the horizontal direction; and the two oblique supports are fixed on the tops of the first bottom plate and the second bottom plate correspondingly, and symmetrically arranged relative to the center of the bottom plate, and the oblique angles of the oblique supports accord with the boundary dimension of a to-be-transported steel component. The bottom plate of the bed-jig can be adjusted in the length direction, moreover the oblique angles of the oblique supports accord with the boundary dimension of the to-be-supported steel component, a good bearing performance is achieved, thus a good support scheme can be provided for the steel component with complex transportation conditions, and the stability of the steel component in the transporting process is enhanced. Meanwhile, the bed-jig can be used repeatedly, is relatively less in wastage, and can be uniformly placed after being used, thus unnecessary waste is avoided, and the production cost is reduced.

The invention relates to a crossed type upright post beam, and belongs to the technical field of construction. The beam comprises an upright post, and the periphery of the upright post is provided with secondary beams with corresponding positions in a surround mode. The beam is characterized in that: U-shaped connecting fasteners which are correspondingly distributed are arranged on the periphery of the upright post; the connecting ends of the secondary beams are provided with hanging plates; when the upright post and the secondary beams are assembled, the hanging plates are connected with the U-shaped connecting fasteners. Therefore, the crossed type upright post beam can effectively depend on the connection of the hanging plates and the U-shaped connecting fasteners, and ensures the best load-bearing and earthquake proofing effects when the upright post and the secondary beams are assembled; moreover, the overall assembly is convenient and quick, and the beam is easily popularized in the field of construction.

The invention relates to an upright post type combined beam, belonging to the technical field of buildings. The upright post type combined beam comprises an upright post, and secondary beams corresponding to each other are arranged at the two sides of the upright post. The upright post type combined beam is characterized in that correspondingly-distributed U-shaped connection buckle members are arranged at the two sides of the upright post, and the connection ends of the secondary beams is provided with hanging plates. When the upright post and the secondary beams are combined, the hanging plates are connected with the U-shaped connection buckle members. Because the hanging plates are connected with the U-shaped connection buckle members, the invention has the advantages of ensuring the optimal bearing and anti-seismic effect in combination of the upright post and the secondary beam, convenient and rapid integral assembly way and easy promotion in the field.

Provided is a cable support in a pipe gallery. The cable support comprises a base with the U-shaped cross section, a base plate of the base is provided with a plurality of assembling holes arranged at intervals, an installing seat is clamped in the base, a crossbeam extending towards the direction of a U-shaped opening of the base is inserted on the installing seat, a bolt and nut fastener is arranged at the position opposite to the installing seat on the base, and the faster penetrates through two side plates of the base, the installing seat and the crossbeam. According to the cable support, the structure is reasonable, the installing seat is arranged between the base and the crossbeam, the overall weight is low, and the load-bearing capacity is large.

The invention provides an outdoor multifunctional portable cart which comprises a supporting back frame, a supporting underframe and a foldable supporting bracket. The supporting back frame is connected with the supporting underframe through movable connecting pieces, a handle is arranged at the top of the supporting back frame, a supporting frame is further arranged on the supporting back frame and the supporting underframe and fixedly connected with the two through three-way pipe fittings via five steel pipes, stair climbing wheels are arranged at the bottom end of the supporting back frame, and a foldable seat frame is arranged in the rear of the supporting back frame. The outdoor multifunctional portable cart has the advantages that the outdoor multifunctional portable cart is of a firm frame structure, so that inconvenience in moving ahead cannot be caused by unbalance of the center of gravity when the pavement is rugged; the foldable seat frame is provided, so that a tool for rest is provided anytime and anywhere during outing, a steel plate arranged on the seat frame can bear load better, and a user cannot feel tired when sitting on the seat frame for a long time; meanwhile, the extended stair climbing wheels can bring convenience to the user for going down and going up stairs, and particularly when the user goes out for fishing, a universal umbrella rack and a fishing rack which are arranged are quite practical and convenient.

A road and bridge construction loading and unloading device and use method. The composition of this product includes: a bottom support plate, the bottom support plate includes a central square plate, and the central square plate is connected to the left bottom plate, the front bottom plate, the right bottom plate, and the rear bottom plate in sequence through hinges, and the left bottom plate , The front bottom plate, the right bottom plate, and the rear bottom plate are all low inside and high outside. The left bottom plate, the front bottom plate, the right bottom plate, and the rear bottom plate are all Both sides are hypotenuse, the hypotenuse is bonded to the magnetic plate, between the left bottom plate and the front bottom plate, between the front bottom plate and the right bottom plate, and the right bottom plate It is connected with the rear bottom plate and between the left bottom plate and the rear bottom plate through the magnetic plate. The invention is used for loading and unloading of road and bridge construction.

The invention belongs to the technical field of degradable shopping bags, and particularly relates to a degradable environment-friendly shopping bag which comprises a shopping bag body, the shopping bag body is square, handles are fixedly arranged on the front side wall and the rear side wall of the shopping bag body, reinforcing belts are fixedly arranged on the outer portions of the two handles, and the reinforcing belts are fixedly arranged on the outer portions of the two handles. Compared with a traditional shopping bag, the shopping bag has better bearing capacity, and during preparation, the shopping bag is prepared by jointly mixing starch, soybean oil, glycerin, calcium stearate, ground calcium carbonate powder, liquid paraffin, low-density polyethylene, linear polyethylene, polylactic acid, carboxymethyl cellulose polycyclic lactone and nano titanium dioxide. Compared with the prior art, the degradable plastic has the advantages that the degradable plastic has better degradation rate which can reach 80-90%, the degradation time is short, the environmental pollution is not too large, the preparation process is simple, the cost of the used preparation raw materials is low, and the production cost is effectively controlled.

The invention provides a multi-column wind-power generating unit tower which comprises columns in the number larger than 2 and less than 20. Connecting pieces are respectively arranged among the columns, one end of each column is provided with a first flange, and the other end of each column is provided with a platform; each column comprises a plurality of sections of column bodies, and a second flange is arranged between two column bodies and fixed by bolts. The multi-column wind-power generating unit tower adopts a plurality of columns, thereby being improved in the stability, reduced in the tower cylindrical diameter and decreased in the processing cost and the transportation cost; the bearing load of each tower is greatly reduced than a single-column tower; and the structure size of the tower is greatly reduced. The number of the tower columns and the size of each tower can be adjusted along with the increase of the power of a generating unit so as to be beneficial to the development of high-power generating units.

The invention discloses a door shaft assembly for a heavy blank door. The door shaft assembly comprises a supporting column and a plurality of U-shaped connecting pieces fixedly connected to the supporting column. The open ends of the U-shaped connecting pieces are fixedly connected to the supporting column, and movable rotating shafts are fixedly connected to the other ends of the U-shaped connecting pieces and sleeved with connecting rotating shafts. A top fixing base and a bottom fixing base are installed at the two ends of the supporting column respectively, and the supporting column can rotate around the top fixing base and the bottom fixing base. The door shaft assembly has the beneficial effects of being good in bearing performance and convenient to install.

The invention provides a hand-held type wicker basket and relates to the technical field of articles of daily use. The hand-held type wicker basket comprises a base, wherein cylindrical wicker is perpendicularly arranged on the periphery of the base in a surrounding mode, a wicker basket body with a containing cavity is formed by the wicker, a metal supporting plate is connected to the inner side of the upper end of the wicker basket body, the bottom of the wicker is connected with the base through screws, the upper portion of the wicker is connected with the metal supporting plate through screws, handles are symmetrically arranged on the upper portions of the two sides of the metal supporting plate and are used for enabling the wicker basket to be lifted up, and the base is a dense wooden board. The hand-held type wicker basket is simple in structure and unique in modeling, all the components are connected and fastened, weight bearing performance is good, and the service life of the wicker basket can be effectively prolonged by adding the metal supporting plate.

The invention discloses a special 80-100 K UPS power supply based on a power standard cabinet. The power supply comprises a cabinet frame, the front side of the cabinet frame is provided with a frontdoor, the left side frame and the right side frame of the cabinet frame are provided with a plurality of modulus holes, the left side and the right side of the cabinet frame are provided with crossbeams through the modulus holes, the rear side of the cabinet frame is provided with a rear door, and the rear door is provided with a plurality of fan mounting holes; a UPS power supply module, a comprehensive power supply module, a touch screen monitor, an input isolation transformer, an output isolation transformer, an input and output circuit breaker and an input and output terminal strip are installed in the cabinet frame. The size of the cabinet is consistent with that of the power standard cabinet; the modulus holes are designed in the cabinet frame, and the cross beams are fixedly mountedon side surfaces, so the size is flexible; the fan mounting holes are formed in the rear door, and heat dissipation holes are formed in the front door, so front-back ventilation is achieved, and a good air duct is formed; all control systems are integrated in the UPS power supply module, so that assembly procedures in the cabinet are reduced; and a main control unit adopts an integral modular design, so that the occupied space in the cabinet is reduced.

The invention relates to the technical field of construction equipment, in particular to a portable multi-purpose road and bridge construction ladder. The portable multi-purpose road and bridge construction ladder comprises a fixing base and outer cylinders. The outer cylinders are fixedly connected with the top end of the fixing base. First-stage piston cylinders are connected with the inner sides of the outer cylinders in a sliding mode, and second-stage piston cylinders are connected with the inner sides of the first-stage piston cylinders in a sliding mode. Fixing shafts are fixedly connected with the right ends of the second-stage piston cylinders, and second-stage telescopic rods are fixedly connected with the right ends of the fixing shafts. A motor is fixedly connected with the right end of one second-stage telescopic rod, and a wire stranding wheel is fixedly connected with the tail end of a main shaft of the motor. By the use of a multi-stage hydraulic cylinder which is formed by the arranged outer cylinders, the first-stage piston cylinders and the like, the working stroke of the ladder can be quite long, the ladder can be contracted to be short when the ladder does notwork, and the portable multi-purpose road and bridge construction ladder is suitable for the occasion with the quite long stroke requirement, and can also well achieve load bearing. In addition, whenthe portable multi-purpose road and bridge construction ladder is used, the ladder crawling time of a worker can be effectively shortened, the physical strength is saved, and the portable multi-purpose road and bridge construction ladder has the enormous economic benefit and the broad market prospect, and is worth using and popularizing.

The invention relates to a manufacturing process of steel imitation solid wood furniture. The manufacturing process comprises the following steps of steel frame manufacturing, veneer bonding, paint treatment, steel and wood frame combination, priming and cotton adhering, skin covering treatment and dust-free packaging. The process concept is novel, the appearance of furniture is attractive, the service life of a traditional wood product is prolonged, the product quality is greatly improved, the comfort degree is improved, and the manufacturing and maintaining cost is reduced; distortion causedby heat transfer printing and wood grain imitation is avoided, and the solid wood effect is completely restored; standardization, systematization and generalization are realized; the product is richand diverse in performance; the real environment-friendly function is realized; the pressure resistance, moisture resistance, corrosion resistance and adhesive force are high; and on the basis of steel-wood bases and the combination of soft bodies, the steel imitation solid wood furniture has the sensory effect of solid wood and the comfort level of the soft bodies, the manufacturing process of the steel imitated solid wood is obtained through a large number of tests, the worries of customers can be effectively solved, and the advantages of the sensory effect of the solid wood, the firm and safe quality and the perfect comfort level are combined.

The invention provides a linear quenching heat exchanger inlet connecting piece and a quenching heat exchanger thereof. The inlet connecting piece comprises an inlet cone (3), a heat insulating piece (4), a sealing piece (11), a protective sleeve (5) and a cooling medium connecting piece (6), wherein the cooling medium connecting piece (6) is a revolution body of which the cross section shape is a convex curve surface and can be used for better absorbing heat expansion difference stress between an inner pipe (7) and an outer pipe (8) of a double-sleeve heat exchanger element (2); and the protective sleeve (5) has good heat protection effect on a deep-hole welding head and the cooling medium connecting piece (6). The invention has the advantages of simple structure, long service life and short cracked gas retention time, and not only can be used for newly building a linear quenching heat exchanger of an ethylene cracking device, but also can be used for reforming a service linear quenching heat exchanger inlet connecting piece.

The invention discloses a fiber-reinforced composite material cable core, which comprises an inner glass fiber layer, an intermediate carbon fiber layer and an outer glass fiber cloth, bonded together by cured high-temperature resistant epoxy resin, and the inner glass fiber layer The glass fiber volume content is 5% to 45% of the mandrel as a whole, the carbon fiber volume content of the middle carbon fiber layer is 20% to 60% of the mandrel as a whole, and the glass fiber cloth volume content of the outer glass fiber cloth layer is 20% to 60% of the mandrel as a whole. The volume content of high temperature resistant epoxy resin is 34%-40%. The epoxy resin includes multi-component epoxy resin, curing agent, accelerator, mold release agent and resin modifier. The invention mainly uses the glass fiber with good resin wettability, moderate elastic modulus and signal transmission function as the core layer structure to reduce the internal stress of the fiber reinforced composite material cable core. The invention has the advantages of good comprehensive mechanical properties, small internal stress, good toughness, friction resistance, good splitting resistance, signal transmission function and the like.

The invention relates to an assembly method of a shirt support and a spherical shell plate of a 1000m<3> nitrogen spherical tank, which comprises the steps of: assembling bulk spherical tanks; setting up an inner scaffold and an outer scaffold; installing and welding a positioning block; manufacturing and installing a ladder and a platform; preheating before the welding; welding lifting points; assembling the spherical tanks; dismantling the scaffolds and the positioning block; and thermally treating the whole spherical tank. The invention increases the stress area of supporting the sphericaltank, also reduces the stress concentration of fillet welds in contact with uprights, and has uniform stress, good stability and reliable connection. The quantity of the spherical shell plates is reduced to 18, which reduces the workload for the manufacture of the spherical tank. The invention increases the quality of the whole spherical tank, improves the safety factor of the operation of the spherical tank, greatly lowers the total installation cost, remarkably enhances the safety of the spherical tank, prolongs the service life of the spherical tank, and decreases the operation and maintenance cost of the spherical tank.