32results about How to "Strong steel" patented technology

The invention discloses a structural concrete type truck scale and installation method thereof. The structural concrete type truck scale includes a plurality of truck scale modules which are connected through connecting pieces; each truck scale module includes a reinforced concrete weighing platform and a weight sensor arranged under the reinforced concrete weighing platform; an edge of a long side of the reinforced concrete weighing platform is of a large H steel girder structure, a reinforcing mesh structure is arranged inside the reinforced concrete weighing platform, and the reinforcing mesh structure is poured into a table surface through model concrete. By use of the truck scale module structure, H steel and concrete pouring are combined, the steel structure concrete type truck scale is formed, the exterior uses H steel as a girder, the interior uses a mould to perform pouring, perfect appearance quality and interior quality are ensured, and at the same time, specialized scale body cement curing is performed inside a factory. The truck scale is internally provided with the reinforcing mesh structure, thereby increasing the stability of the weighing table and prolonging the service life.

The invention relates to a dual-axis rotary automatic tracking solar energy device. The device is fixedly connected with a horizontal rotary reducer on the flange plate of the lower column, the flange plate at the lower end of the upper column is fixed on the flange plate of the power output shaft of the horizontal rotary reducer, and the flange plate at the upper end of the upper column is fixed with a connecting plate. The support beam shaft tube is equipped with a vertical rotary reducer in the middle of the support beam shaft tube, and bearing seats are respectively provided at both ends of the support beam shaft tube. The left and right power output shafts are connected, and the other ends of the rotating shaft tubes of a pair of brackets are respectively fitted into two bearing seats, and extend out of the two bearing seats to be fixed on the solar panel component brackets respectively; Rotation has the advantages of high tracking accuracy, strong rigidity of the whole machine, not easy to deform, low consumables, long life, not easy to produce lower deflection, good torque resistance, and convenient disassembly and assembly.

A stereo garage comprises a driving framework, a guiding framework, a fixed beam, sealed guiding rails, lifting chains, a driving shaft, bearing frameworks, lifting chain sheets and a guiding rail. The driving framework and the guiding framework are of framework structures formed by square steel tubes which are welded; the fixed beam is fixedly connected between the driving framework and the guiding framework and forms a bearing main body with the driving framework and the guiding framework; the sealed guiding rails are respectively arranged in a vertical frame body of the driving framework and a vertical frame body of the guiding framework; the lifting chains are arranged on the sealed guiding rails, the lifting chains can circularly move in the sealed guiding rails and form a lifting system with the sealed guiding rails; the guiding rail is arranged on the outer side of the guiding framework; a plurality of lifting chain sheets are evenly distributed on each lifting chain; a plurality of bearing frameworks are horizontally arranged between two corresponding lifting chains in parallel, and hinge shafts of beams on the two sides of each bearing framework are in hinge connection with corresponding lifting chain sheets. The stereo garage is small in floor area, easy to process, flexible in transmission and low in construction cost.

The invention relates to a large continuous air supply type air-heated vaporizer. The large continuous air supply type air-heated vaporizer comprises a heat exchange fin tube bundle which is arranged between a liquid inlet and an air outlet and arranged in a matrix mode, the heat exchange fin tube bundle is divided into an undercooling section, an evaporation section and a heating section which are parallel from the liquid inlet to the air outlet, the undercooling section, the evaporation section and the heating section are connected between the liquid inlet and the air outlet in series, each of the undercooling section and the heating section comprises at least one row of heat exchange fin tubes, the evaporation section comprises a plurality of rows of heat exchange fin tubes which are connected in series. According to the air-heated vaporizer, the undercooling section, the evaporation section and the heating section of the heat exchange fin tube bundle are connected in series, the evaporation section comprises the plurality of rows of heat exchange fin tubes which are connected in series, the arrangement is reasonable, the structure is compact, the overall rigidity is high, the vaporizer is attractive and elegant in appearance, cryogenic fluids can be distributed to pipes evenly, bias current can be avoided, and requirements for high-flow continuous air supply are met.

The invention belongs to the technical field of fiber preparation, and particularly to polyacrylonitrile fiber and a preparation method thereof. The polyacrylonitrile fiber comprises a polymer A and apolymer B, wherein the content of the polymer B in the polyacrylonitrile fiber is any content, preferably 0-30 wt%, more preferably 10-20 wt%, the polymer A is prepared from 92-94 wt% of acrylonitrile and 6-8 wt% of vinyl acetate, and the polymer B is prepared from 88-99 wt% of acrylonitrile, 0.8-8 wt% of methyl acrylate and 0.2-4.8 wt% of itaconic acid. According to the present invention, the polyacrylonitrile fiber has excellent characteristics of resilience, covering property, bulkiness and stiffness of the dry polyacrylonitrile fibers, and further has characteristics of smoothness and good spinning performance of wet polyacrylonitrile fibers.

The invention provides a direct-current storage battery carrying and stair climbing device. According to the technical scheme, a frame with a lifting mechanism is adopted for bearing a storage battery, and therefore load-bearing stair climbing movement is completed instead of manpower; specifically, a storage battery tray and a storage battery fixing plate are correspondingly fixed at the front end of a basic frame, and a binding belt is combined to play a role in fixing the storage battery; on the rear side of the basic frame, two S-shaped supporting arms are driven by a gear motor to rotatealternately, so that the walking mode of a human body is simulated, stair climbing movement is formed, and compared with vertical lifting of a conventional straight supporting arm, the stair climbingmode is small in vibration and better in stability; the gear motor is powered by a lithium battery, and the lithium battery can be designed into a detachable structure, so that the lithium battery canbe detached for independent charging after the electric quantity is exhausted, and continuous operation of the device can be ensured by replacing the battery; and the device is particularly suitablefor carrying work of a transformer substation storage battery, manpower can be effectively saved, and the engineering implementation efficiency is fully improved.

The invention discloses a prefabricated brick moulding bed mortise and tenon joint structure and a construction method. The prefabricated brick moulding bed mortise and tenon joint structure comprisesa plurality of prefabricated slabs, wherein the prefabricated slabs are provided with clamping grooves and/or clamping pieces; the clamping grooves and the clamping pieces are connected in a one-to-one correspondence mode; a plurality of first connecting pieces are arranged in the clamping grooves; the clamping pieces comprise clamping blocks and second connecting pieces; the second connecting pieces are fixedly connected with the clamping blocks; the second connecting pieces and the first connecting pieces are connected in a one-to-one correspondence mode; the prefabricated slabs are provided with structural steel bars; and the first connecting pieces and the second connecting pieces are formed by extending the structural steel bars. According to the prefabricated brick moulding bed mortise and tenon joint structure and the construction method, through the structural arrangement of the prefabricated slabs, when the adjacent prefabricated slabs are connected, the structural steel barsin the adjacent prefabricated slabs are also connected, so that a complete steel bar structural part is formed, and the stability of the prefabricated brick moulding bed mortise and tenon joint structure is guaranteed.

The invention relates to the technical field of petrochemical industry production devices, in particular to a multi-zone reactor with a cyclone separator. The multi-zone reactor comprises a main cylinder and an auxiliary cylinder which are vertically arranged, and an annular shell is arranged between the top of the main cylinder and the top of the auxiliary cylinder. The cyclone separator comprises a pre-cyclone device arranged at the position, close to the main cylinder, of the annular shell and a cyclone guide device arranged at the inner top of the main cylinder, the cyclone guide device comprises an end socket located at the top of the main cylinder, a jacket and a plurality of flow guide partition plates, an annular flow channel is formed between the jacket and the inner wall of the end socket, and the flow guide partition plates are distributed in the annular flow channel in the circumferential direction; and the flow guide partition plate is in a spiral flow guide shape longitudinally. A pre-swirler can enable the flowing fluid to generate a rotating flow state around the bending central axis of the large annular shell, and the flow deviation state caused by centrifugal force when the flowing fluid flows through the annular shell is broken. And the flow guide device at the top of the main cylinder body can enable the fluid entering from the pre-swirler to generate a rotating flow state which is uniformly distributed in the circumferential direction around the central vertical axis of the main cylinder body, so that the effect of further strengthening the rotational flow is achieved.

The invention provides a heat exchange module which comprises a shell, multiple first wind guiding members and multiple first spacing members. The first wind guiding members are arranged in the shell. Each first wind guiding member comprises multiple first structures and multiple second structures. The first structures are arranged in a mutually parallel way. The second structures are arranged among the first structures and connected with the first structures so as to form multiple first channels. The first spacing members are respectively arranged between two adjacent first wind guiding members so as to form second channels. The first channels and the second channels are different in airflow direction. The invention also provides an electronic device applying the heat exchange module.

The invention discloses a connecting rod device for swing arm of machine head cutter, which comprises a cam transmission mechanism. The cam of the cam transmission mechanism is connected with a connecting rod which is controlled by the cam transmission mechanism to continuously move vertically up and down. The lower end of the connecting rod is movably connected to On one card arm, the card arm is flexibly hinged by pins to a swing arm mechanism for controlling the vertical up and down movement distance of the connecting rod and for counteracting the swinging force of the connecting rod. The present invention adopts a swing arm mechanism, which is used to control the vertical vertical movement distance of the connecting rod, and to offset the swing force of the connecting rod, so that the connecting rod drives the cutter to always move vertically up and down, and the material used in the swing arm mechanism is titanium alloy material , stronger steel. When the cam rotates, it drives the connecting rod to move back and forth, and the cam slides along the semicircular groove to further stabilize the movement track of the connecting rod.

The invention discloses an outdoor movable blind window capable of resisting typhoon and a drive method for blinds of the outdoor movable blind window. The outdoor movable blind window capable of resisting typhoon comprises a plurality of blinds with rotary shafts, and further comprises a hinge mechanism formed by connecting a plurality of hinges, wherein the rotary shaft of each blind is connected to the hinge mechanism. The invention further provides a drive method for the blinds of the outdoor movable blind window capable of resisting typhoon, wherein the outdoor movable blind window capable of resisting typhoon comprises the plurality of blinds with the rotary shafts; and the drive method comprises the following steps of: connecting the rotary shafts of the blinds to the hinge mechanism, and realizing translation and/or rotation for the blinds by driving the hinge group. The outdoor movable blind window capable of resisting typhoon disclosed by the invention has prominent wind-resisting performance, operation and control performance, endurance performance and burglarproof performance, can be adaptive to bad meteorological environments such as typhoon and sand, and has a service life of being up to more than 25 years.

The invention relates to a steel plate for rib fracture inner fixing. The steel plate is arranged in the middle, a plurality of fixing claws are symmetrically arranged on the two sides of the middle steel plate, a screw hole is formed in the middle steel plate between the two corresponding fixing claws, the inner wall of the screw hole is covered with a high polymer material covering layer, the inner wall of the high polymer material covering layer is provided with a pressurizing hole formed by screw threads, and a reinforcing steel sleeve sleeves the middle steel plate. The steel plate for the rib fracture inner fixing is simple in structure, high in safety and suitable for clinic requirements, the reinforcing steel sleeve sleeves the steel plate, so that the strength of the whole fracture fixing steel plate is greatly improved, and the aim of connecting bones more firmly can be achieved. The inner wall of the screw hole is covered with the high polymer material covering layer, and the steel plate has stronger rigidity and stronger practicality.

The invention relates to the technical field of building construction, in particular to an attached lifting operation safety protection platform guide rail for building construction. A plurality of anti-falling stop levers are fixed between two sliding ways of guide rail bodies at equal intervals from top to bottom, the anti-falling stop levers are fixedly connected with a square pipe through round steel, and longitudinal reinforcing rib plates are connected between the adjacent round steel. One side edge of each longitudinal reinforcing rib plate is fixed to the side wall of the square pipe,transverse reinforcing rib plates are fixed to the side wall of the round steel in a bilateral symmetry manner, one end of each transverse reinforcing rib plate is fixedly connected with the outer wall of the corresponding anti-falling stop lever, and the other end of each transverse reinforcing rib plate is fixedly connected with the side wall of the square pipe. End plates are fixed to one endsof the two guide rail bodies and one end of the square pipe, triangular reinforcing plates are fixed to the connecting positions of the end plates and the square pipe in a bilateral symmetry manner, and arc-shaped reinforcing plates are fixed to the connecting positions of the end plates and the guide rail bodies. According to the guide rail, rigidity is enhanced, torsion resistance is good, and instability is not prone to happening.