39856results about How to "Easy to fix" patented technology

The invention relates to the technical field of sewage treatment, in particular to a liftable aeration device and a sewage treatment system.The system comprises a data acquisition module for acquiring dissolved oxygen concentration, gas flow and air pressure at multiple moments before each moment in the sewage treatment process and recording the dissolved oxygen concentration, the gas flow and the air pressure as historical data sets of each moment; the feature analysis module is used for determining the gas supply stability at each moment; determining a first trend degree, a second trend degree, a first collaborative factor and a second collaborative factor of each fluctuation moment in the historical data set of each moment; determining a relative collaboration degree and a forward feedback index at each moment; the aeration control module is used for determining a proportionality coefficient and an integral parameter of a PID controller at each moment; and in combination with a PID (Proportion Integration Differentiation) controller, obtaining a gas flow control value at each moment, and controlling the concentration of the dissolved oxygen in the sewage. The gas flow can be more accurately adjusted, the control accuracy of the concentration of dissolved oxygen in sewage is improved, and the sewage treatment efficiency is improved.

The invention relates to the technical field of basalt fiber mesh detection, in particular to basalt fiber composite rib mesh strength testing equipment and method.The basalt fiber composite rib mesh strength testing equipment comprises a supporting table and a movable groove formed in the top of the supporting table, and a longitudinal stretching mechanism located above the movable groove is installed at the top of the supporting table; a transverse stretching mechanism is installed in the movable groove in a front-back sliding mode, a movement adjusting mechanism for driving the transverse stretching mechanism to move front and back is installed in the supporting table, and an angle positioning mechanism is installed at the front end of the longitudinal stretching mechanism. The mesh material is detected through cooperation of the longitudinal stretching mechanism, the transverse stretching mechanism and the movement adjusting mechanism, the longitudinal stretching mechanism is used for longitudinally stretching the mesh material, and the transverse stretching mechanism is used for transversely stretching the mesh material, so that stretching resistance detection is carried out in the warp direction and the weft direction of the mesh material; and the tensile property of the mesh material when the mesh material is simultaneously subjected to transverse and longitudinal tensile forces can be conveniently measured.

The invention relates to the technical field of bolt mounting equipment, in particular to an angle steel tower bolt perforation mounting method. By means of autonomous navigation of the installation robot and flexible operation of the mechanical arm, rapid positioning and taking-out of bolts and nuts are achieved, and the risk of manual climbing and operation is reduced. Accurate insertion and preliminary positioning of the bolt are ensured through accurate control of the mechanical arm, then the fastening effect is enhanced by combining impact tightening with the intermittent hammering technology, the fit clearance between the angle steel is effectively eliminated, and the bolt is prevented from loosening. The whole process is highly automatic, personal errors are reduced, and the mounting quality and the working safety are improved.

The invention provides a positioning device for accurate construction of a stand column pile and a positioning method of the positioning device, and relates to the technical field of building foundation construction.The positioning device comprises a pile casing, a reinforcement cage, the stand column pile and a latticed column, and the pile casing is provided with an accurate positioning assembly.According to the positioning device, an operator starts a transmission motor, and the output end of the transmission motor drives a gear to rotate; the gear drives the arc-shaped rack and the first limiting block to rotate, and due to rotation of the first limiting block, the first limiting block can drive the rotating rods to rotate in the first limiting block, so that the distance between the rotating rods can be adjusted, then the positioning plate is adjusted to a proper angle, the nut is tightened, and the positioning plate is fixed; and the stand column piles can be moved to the foundation pit through the first rolling wheels, precise positioning of the stand column piles with different diameters is achieved, and therefore the technical purpose of precise positioning of the stand column piles with different diameters is achieved.

The embodiment of the invention provides a portable coil turnover machine, and relates to the field of coil turnover. A portable coil upender comprises an upper cross beam, a first moving beam and a second moving beam are slidably mounted at the two ends of the upper cross beam respectively, holding mechanisms are rotatably mounted at the lower ends of the first moving beam and the second moving beam respectively, and the lower ends of the two holding mechanisms are slidably connected with the two ends of a bearing chassis respectively. And the two groups of holding mechanisms are close to each other to fix the two sides of the coil. The motor drives the two-way lead screw to enable the first moving beam and the second moving beam to be close to each other, so that the two sets of inner beams and the embracing grabs fix the two sides of an aluminum wire, meanwhile, the device is connected with a hoisting mechanism through the hoisting ring, and after the aluminum wire is hoisted, the gear motor drives the rotating rod to rotate, so that the two sets of embracing grabs drive the aluminum wire to rotate; therefore, the device can meet the overturning requirements of aluminum wires of different specifications and different weights, has high universality and flexibility, and reduces manual operation.

The invention relates to an optical adjusting mechanism, in particular to a multi-dimensional optical lens posture adjusting frame. The objective of the invention is to solve the problems of large size, high price and complex installation and debugging processes of the existing optical adjustment mechanism. The device comprises a fixed seat, a transverse movement adjusting plate, a longitudinal movement adjusting plate, a rotary adjusting seat and a vertical supporting plate, wherein the transverse movement adjusting plate is mounted on the fixed seat and can be manually and transversely adjusted; the longitudinal movement adjusting plate is mounted on the transverse movement adjusting plate and can be manually and longitudinally adjusted; the rotary adjusting seat is mounted on the longitudinal movement adjusting plate; the pitching adjusting mirror frame is arranged on the vertical supporting plate; the pitching adjusting ring is connected with the pitching adjusting mirror frame; the rotary adjusting seat can be used for manually adjusting a part connected to the rotary adjusting seat to rotate; the vertical supporting plate can adjust a part connected to the vertical supporting plate to move up and down; the pitching adjusting ring can realize the pitching adjustment of the pitching adjusting mirror frame through manual operation, thereby realizing the multi-dimensional adjustment of the optical lens in a narrow space.

The invention discloses a secondary battery and an electronic device, the secondary battery comprises a packaging bag, an electrode assembly, an electric connecting piece, a first insulating piece and a second insulating piece, the electrode assembly is located in the packaging bag, the electrode assembly comprises a main body part and a tab assembly, the tab assembly comprises a plurality of tabs, and the electric connecting piece is located outside the packaging bag and is electrically connected with the tab assembly. The tab assembly comprises a first part and a second part, the first part extends out of the main body part and is connected with the second part, the second part is bent towards the main body part, the second part and the electric connecting piece form a welding mark, and the second part comprises a first surface and a second surface. The first insulating part covers the welding mark, the second insulating part is located on one side of the thickness direction of the tab and extends to the main body part from the first surface of the second part through the first part, the thickness of the first insulating part is T1, the thickness of the second insulating part is T2, T1 is larger than T2, T1 is larger than or equal to 25 microns and smaller than or equal to 60 microns, T2 is larger than or equal to 4 microns, and the safety performance and the falling performance of the secondary battery are both considered.

The invention discloses anti-disorder winding equipment for electronic transformer manufacturing, and relates to the technical field of winding equipment.The anti-disorder winding equipment comprises a support, the support is fixedly installed at the top of a base, the support is hook-shaped, a through hole is formed in an opening in the top of the support, a connecting plate is rotatably connected to the interior of the through hole, and a middle plate is fixedly connected to the outer side of the connecting plate; the top of the middle plate is fixedly connected with an elastic plate, the elastic plate is fixedly connected with the inner wall of the through hole, the end, away from the support, of the connecting plate is rotationally connected with a limiting wheel, and the outer side of the limiting wheel is fixedly connected with a guide block. According to the anti-disorder winding equipment for manufacturing the electronic transformer, through the elastic force effect of the elastic plate, the limiting wheel at the top makes close contact with the top of the framework, so that the limiting wheel can be attached to the framework according to the actual shape of the framework, and the framework is round, oval or provided with some tiny irregular contours; and during working, the limiting wheel can be in close contact with irregular parts on the outer side of the framework, so that the framework is better fixed.

The invention relates to the technical field of logistics, and particularly discloses an automatic sorting goods shelf and a sorting system thereof.The automatic sorting goods shelf comprises a base, two goods shelf bodies are installed in the middle of the top end of the base, and a plurality of lifting mechanisms are installed on the two goods shelf bodies; the lifting mechanism comprises a storage box, a through opening, a fixing frame, a positioning mechanism, a double-head motor, a driving shaft and a lifting gear. After a double-head motor is started, a lifting gear is precisely meshed with a tooth groove to drive a storage box and a placing goods shelf to move up and down, then a first driver is started, and a double-head screw is driven to rotate through tight meshing transmission of two bevel gears to enable two positioning blocks to be accurately inserted into corresponding positioning grooves, so that the storage box is firmly and stably fixed; by means of the design, the height of each layer of the goods shelf can be flexibly adjusted so as to adapt to goods of different sizes, the space utilization rate of the goods shelf is greatly improved, and the sorting difficulty and time cost are effectively reduced.

The invention discloses an electric power monitoring device for an energy storage power station, the electric power monitoring device is installed on an electric power support rod, the electric power monitoring device comprises a rack, the right side of the rack is welded with a fixing plate, the fixing plate is in a semicircle shape capable of surrounding the electric power support rod, the rack is provided with a clamping mechanism, and the clamping mechanism clamps the fixing plate on the electric power support rod; the top end of the rack is fixedly connected with a top plate through a second connecting rod, a rotating mechanism is arranged on the top plate, the rotating mechanism is connected with a rotating rod to drive the rotating rod to rotate, the top end of the rotating rod is fixedly connected with a mounting plate, and a freely telescopic cylinder is mounted on the mounting plate; a lifting mechanism is mounted at the tail end of the barrel and connected with the camera to drive the camera to move up and down; the rack is also provided with a solar cell panel, and the solar cell panel is used for storing energy and providing power for the electric power monitoring device. The power monitoring device is convenient to install and can comprehensively monitor the high-voltage lines installed on the two sides of the power support rod.

The invention relates to the technical field of anti-seismic support machining equipment, and discloses anti-seismic support manufacturing equipment which comprises a supporting seat, a workbench is arranged at the top of the supporting seat, a rack extending to the position above the supporting seat is arranged on the rear side of the supporting seat, and a welding mechanism penetrating to the position above the workbench is arranged at the top of the rack; a first transmission assembly, a second transmission assembly and a control mechanism are arranged at the top of the supporting seat, supporting turnover assemblies located on the left side and the right side of the workbench are arranged at the top of the supporting seat, and limiting clamping assemblies extending to the outer sides of the supporting turnover assemblies are arranged in the supporting turnover assemblies. According to the manufacturing equipment for the anti-seismic support, a user can effectively and conveniently fix and install a welding workpiece of the anti-seismic support, the labor intensity of operators is effectively relieved, the user can effectively and conveniently turn over and weld the welding workpiece, disassembly, assembly and adjustment are not needed, and the machining efficiency and flexibility of the equipment are effectively improved.

The invention relates to the technical field of power cable processing, in particular to power cable outer sheath stripping and cutting equipment and a stripping and cutting method.The power cable outer sheath stripping and cutting equipment comprises a fixing ring arranged on a cable in a sleeving mode and a clamping mechanism connected with the fixing ring, and the clamping mechanism comprises a clamping plate located in the fixing ring and used for clamping and fixing the cable; a rotating ring is arranged outside the fixed ring, and a cutting device used for cutting the cable and an adjusting assembly which is installed in the rotating ring and used for adjusting the cutting device to be close to or away from the cable are arranged in the rotating ring. By means of the clamping mechanism, the adjusting mechanism and the rotating mechanism, cables of different body types can be clamped and fixed, the girdling position can be adjusted after clamping and fixing, then the cables are girdled, the clamping state of the cables can be kept all the time in the multiple girdling process, and the girdling efficiency is improved. Therefore, the cable can be prevented from deviating and shaking during stripping and cutting, and the stripping and cutting accuracy is prevented from being affected.

The invention relates to the technical field of welding equipment, in particular to a ship piping accessory automatic welding device which comprises a base and a supporting plate fixedly connected to the base and further comprises a hollow cylinder rotationally arranged on the supporting plate, and four supporting rods surround the hollow cylinder; the pushing assembly is arranged on the hollow cylinder, connected with the four supporting rods and used for driving the four supporting rods to expand outwards to support the supporting pipe; by starting the first driving motor, the multiple supporting rods can be driven to expand outwards to support the branch pipe, meanwhile, the C-shaped buckle plate is driven to deflect to fix the transverse pipe, then the branch pipe and the transverse pipe are conveniently and rapidly fixed at the same time, meanwhile, in the process of fixing the branch pipe and the transverse pipe, the alignment assembly is used for driving the branch pipe to move to be in butt joint with the transverse pipe, and it is guaranteed that the welding positions are aligned; meanwhile, after the transverse pipe is aligned with the branch pipe, the first driving motor continues to be started to drive the transverse pipe to move and break away from the branch pipe, so that a welding seam is formed, and the welding effect is improved.

The invention discloses an epoxy group modified zwitterionic polymer / heparin composite coating and a preparation method thereof. The preparation method comprises the following steps: firstly, constructing an amino-containing adhesion layer on the surface of a substrate by adopting a dip-coating method; then, the substrate is soaked in a mixed solution of the zwitterionic polymer and the heparin, and grafting of the zwitterionic polymer and the heparin on the surface of the medical material is completed through incubation. The coating provided by the invention has excellent hydrophilicity, can form a hydration layer, provides a physical barrier, and remarkably prevents adhesion and colonization of microorganisms. The inhibition rate of the coating on escherichia coli and staphylococcus aureus exceeds 99%, protein adhesion is remarkably reduced in an anti-protein adhesion experiment, and the coating is simple in strategy design, has a potential application prospect in the aspect of preventing blood contact catheter related infection and thrombosis, and has a wide application prospect. The complication occurrence rate and the medical care cost can be reduced.

The invention belongs to the field of automobile hubs, and particularly relates to an automatic automobile hub grinding system which comprises a grinding platform, a telescopic column is arranged above the grinding platform, a supporting block is arranged at the output end of the telescopic column, a first motor is arranged on the supporting block, and a rotating disc is arranged at the output end of the first motor; a fixing mechanism is arranged on the rotating disc, and the fixing mechanism is used for clamping and positioning a hub; a shaking mechanism is arranged on the grinding platform and used for shaking off chippings on the hub. By arranging the fixing mechanism, automatic grinding treatment on the peripheral side wall of the hub is achieved, the working efficiency is higher, meanwhile, the fixing effect on the hub is better, the hub is not prone to shaking in the grinding process, and the grinding quality of the hub is improved; and through the arrangement of the shaking mechanism, chippings attached to the hub are shaken off in time, the chippings are prevented from adhering to the hub, and salient points are prevented from appearing in the subsequent paint spraying process.

The invention relates to the technical field of welding devices, and particularly discloses a solar frame and lamp pole welding device and method based on solar street lamp machining. Comprising a fixing base, a monitoring mechanism arranged at the top of the fixing base and used for determining the attaching degree of a lamp pole sleeve and a frame body, and a limiting mechanism arranged in linkage with the monitoring mechanism and used for fixing a solar frame. Therefore, the abutting degree of the lamp pole sleeve and the solar frame can be judged conveniently, the situation that welding is unstable due to a gap between the lamp pole sleeve and the solar frame is reduced, the limiting assembly and the monitoring assembly are arranged in a linkage mode, the solar frame can be clamped conveniently, the inner wall of the lamp pole sleeve can be aligned to the center of the solar frame conveniently, and the working efficiency is improved. And therefore, the outer wall and the inner wall of the lamp pole sleeve can be welded before and after subsequent overturning, and the welding stability of the lamp pole sleeve and the solar frame is improved.

The invention relates to the technical field of soil layer drilling, in particular to an efficient underground water quality detection sampling device which comprises a base, a fixing seat is further arranged on the base, and a device storage structure and a sample storage structure are arranged on the left side and the right side of the fixing seat respectively; a supporting structure is further arranged in the middle of the fixing base and comprises a vertical plate, a transverse plate, an axial motor, a mounting base, a lead screw, a guide rod and a drill rod. The drill rod is connected with the mounting seat through a rotating piece; the drill rod comprises a drill bit, a rod body, a sampling water pump and a sampling pipe; a sampling hole is further formed in the drill bit, and a liquid collecting cavity which is coaxially distributed is formed in the center in the rod body; a first cavity and a second cavity which are distributed from inside to outside are further formed in the rod body and located on the outer side of the liquid collecting cavity, and the sampling hole extends inwards, penetrates through the first cavity and the second cavity and is communicated with the liquid collecting cavity. The device is reasonable in structural design, filtering, collecting, sampling and storing operation of underground water at different heights can be completed on the basis that efficient drilling of underground water soil layers at different depth positions is achieved, and the using effect is good.

The present invention belongs to the field of drones, and provides a drone testing system, including a testing device and a processing module, wherein the testing device includes a test bench, on which a torque testing module is installed, and the torque testing module is used to test the torque when the drone turns, and a tension testing module is installed on the torque testing module, and the tension testing module is used to test the vertical tension and tilt tension of the drone. The present invention sets a tension sensor, an angle sensor, a winding drum, a pull rope, and a second motor, and when testing the tilt tension of the drone, the drone is tilted to fly, and the drone tilts and pulls the pull rope, the tension sensor can measure the vertical tension of the pull rope, the angle sensor can detect the tilt angle of the pull rope, and then the tension of the pull rope and its horizontal tension component can be calculated, and the system can comprehensively and accurately test the tension parameters of the drone when it is tilted.

The utility model provides an injection mold cooling mechanism, and belongs to the technical field of mold cooling. The injection mold cooling mechanism comprises a lower mold base, an upper mold base and limiting rods, the limiting rods are installed at the four corners of the top end of the lower mold base correspondingly, the top ends of the limiting rods are connected with the corners of the upper mold base in a penetrating and inserting mode, a molding groove is formed in the top end of the lower mold base, and a cooling cavity is formed in the portion, close to the molding groove, of the lower mold base. A liquid supply mechanism is arranged on one side of the lower die base, one end of the liquid supply mechanism communicates with the interior of the cooling cavity, a flow dividing pipeline is arranged on the side, away from the liquid supply mechanism, of the lower die base and comprises a liquid discharging pipe, a reversing valve, a first pipeline and a second pipeline, the liquid discharging pipe communicates with the interior of the cooling cavity, and the liquid discharging pipe communicates with the interior of the cooling cavity. And one end of the liquid discharge pipe extends to the outer part of the lower die holder and is communicated with the input end of the reversing valve.

The invention provides a southern red soil dry land deacidification soil conditioner and a preparation method thereof, and belongs to the technical field of soil conditioners. The preparation method comprises the following steps: embedding bacillus subtilis, bacillus licheniformis and bacillus amyloliquefaciens to prepare bacterial microspheres, adding the bacterial microspheres into gel formed by carboxymethyl chitosan and silk fibroin peptide to prepare sustained-release bacterial microsphere gel, uniformly mixing the sustained-release bacterial microsphere gel with porous silicon dioxide loaded with basalt and charcoal, and drying to prepare the acid-reducing soil conditioner for the southern red soil dry land. The acid-reducing soil conditioner for the southern red soil dry land not only improves the pH value of the soil, but also can loosen the soil and improve the air permeability of the soil to a certain extent, and promotes the absorption of crops to moisture and nutrient elements by improving the physical and chemical properties of the soil, so that the normal growth of the crops is ensured, and the acid-reducing soil conditioner has a wide application prospect.

The invention provides a GNSS (Global Navigation Satellite System) integer ambiguity estimation method and equipment based on improved particle swarm optimization, which are used for realizing rapid and accurate estimation of high-dimensional integer ambiguity and comprises the following steps of: performing integer Gaussian transformation parameterization on floating point ambiguity and a variance-covariance matrix thereof; taking a minimum optimal integer candidate vector residual quadratic form as fitness, and establishing an ambiguity search target function; performing direct rounding estimation on the floating point ambiguity to obtain a search initial value; determining a search space of each ambiguity component by combining the floating point ambiguity and the median error after integer Gaussian transformation; setting an improved particle swarm optimization method, and setting a dynamic inertia weight, a dynamic learning factor, a boundary detection and control model, an adaptive iteration model and a scale factor improvement model; and performing optimal and suboptimal integer ambiguity candidate vector estimation, and obtaining a corresponding residual quadratic form. The method can be used for ambiguity calculation of non-difference ambiguity, dual-frequency and ionosphere-free combination models, and can also be popularized to other GNSS integer ambiguity estimation problems.

The invention relates to the field of arid region oasis ecological protection, and discloses an arid region oasis protective barrier construction pattern and plant species configuration method, according to the characteristics of the arid region oasis structure, a protective barrier is laid, and according to the habits, uses and morphological characteristics of plants and the functional difference of different plants, the arid region oasis protective barrier construction pattern is constructed. Proper arbor, shrub and herbaceous plant configuration is carried out, and the method comprises the steps that a photovoltaic, mechanical sand stabilization and shrub and grass sand blocking belt is constructed in the edge zone of the desert, a windproof backbone forest is arranged at the junction of the desert and the oasis, forest network construction is carried out in a farmland area in the oasis, and greening and beautifying are carried out on the periphery and the interior of a residential area. By constructing a multi-layer and multifunctional oasis protection barrier system, desertification control and oasis protection system construction are achieved, regional economic development and biodiversity recovery are promoted, and the win-win situation of ecological benefits and economic benefits is achieved.

The utility model discloses a pressure controllable type machine tool clamp, belongs to the technical field of machine tool clamps, and aims to solve the problems that a workpiece cannot be clamped stably and cannot be protected. The pressure controllable type machine tool clamp comprises a concave frame, a disc is fixedly connected to the top of the concave frame, and a rotating shaft penetrating through the disc is rotationally connected to the upper surface of the bottom of the concave frame; the worm wheel is matched with the worm, the rotating wheel is rotated to enable the worm to rotate, and the worm wheel meshed with the worm drives the rotating shaft to rotate, so that the disc rotates, the disc rotates to drive the arc-shaped guide groove to push the guide wheel to move, and the guide wheel drives the sliding rod to move. The multiple sliding rods are driven to move towards the inner side, the multiple arc-shaped chucks are driven to clamp and fix a workpiece, the workpiece is clamped from four directions at the same time, the workpiece can be stably fixed, production errors caused by deviation of the workpiece in the machining process are avoided, and the production precision and stability are improved.

The invention discloses a punch forming device for producing an automobile engine oil pan, and relates to the technical field of punch forming, and the punch forming device comprises a composite mechanism. According to the punch forming device for production of the automobile engine oil pan, through the design of the composite mechanism, materials are placed in the processing mechanism and conveyed to the composite base through the processing mechanism, then a movable cross beam is controlled through a hydraulic column to enable a pressing module to extrude a bearing module, and therefore the punch forming effect is achieved; the effect of manually laying materials is reduced, potential safety hazards of operators are reduced, the operation environment is optimized, after long-time operation of the bearing module, parts can be seriously abraded, and therefore the stamping precision of follow-up materials is affected, the bearing module can be replaced, and in the process that the pressing module extrudes the materials towards the bearing module, the pressing module can be replaced, and the pressing module can be replaced. And the magazine mechanism contracts to store force, so that after stamping is finished, ejection is performed through the magazine mechanism, the effect of preventing material adhesion is achieved, and the subsequent operation efficiency is prevented from being influenced.

The invention discloses an electric power distribution method convenient for maintenance. By arranging a second threaded column (21) and an extrusion plate (22), when the second threaded column (21) rotates, the extrusion plate (22) can be driven to rotate, then the extrusion plate (22) can drive a friction pad (27) to rotate, and when the friction pad (27) is connected with the lower surface of the inner wall of a shell (1) in a lap joint mode, a support plate (17) can be fixed; and by arranging a stop block (28), when the back face of a second protection plate (10) is connected with the front face of the stop block (28) in a lap joint mode, a first threaded column (13) can be more conveniently connected with a second threaded sleeve (14), and therefore the second protection plate (10) can be better fixed. The electric power distribution method convenient for maintenance has the advantages that the structure is compact, the design is reasonable, and the practicability is high.

The present invention relates to a metal hydride hydrogen storage container which is easy to disassemble and can effectively exchange heat, and relates to the technical field of hydrogen storage containers, and in particular to a metal hydride hydrogen storage container which is easy to disassemble and can effectively exchange heat. The present invention comprises: a hydrogen storage alloy tank, a sleeve, a flange and a hydrogen valve; the hydrogen storage alloy tank is installed in the sleeve, and the flange is sealed and connected by a rubber gasket and flange bolts and nuts; a hydrogen valve is installed at the center of the flange; and the interior of the hydrogen storage alloy tank is filled with hydrogen storage alloy powder. The technical solution of the present invention solves the problems in the prior art that the hydrogen storage alloy generates stress on the inner wall of the container due to lattice expansion during the hydrogen absorption process, causing the container to deform and affecting the service life of the container; the hydrogen storage alloy has poor long-term cycle stability and needs to be frequently replaced; the hydrogen storage alloy has poor thermal conductivity and the hydrogen storage device needs to transfer heat to the outside world.

The invention relates to the technical field of annealing furnaces, in particular to a swirl injection type energy-saving annealing furnace. The device comprises outer shell plates and an air duct, the outer shell plates are spliced to form a hearth, the air duct is arranged in the outer shell plates to form an air path for convective circulation, the air duct is connected with a circulating fan, and air in the air duct and an inner cavity of the hearth is driven by the circulating fan to actively convectively circulate. The air direction of air convection circulation of the air channel faces the side face and the lower portion of the workpiece needing annealing, and a heat preservation layer is attached to the inner surface of the outer shell plate. The shell plate is used for supporting a main body structure of the furnace body, the air duct is used for achieving circulation convection of air flow, the annealing efficiency and the annealing quality of the metal coiled materials are improved through circulation convection of high-temperature air flow, the heat preservation layer is used for storing internal heat, reducing energy leakage and effectively reducing loss, and the circulation fan is used for providing power for circulation convection of the air flow.

The invention relates to wire harness welding equipment, and belongs to the technical field of wire harness machining, the wire harness welding equipment comprises a workbench, the workbench is provided with a feeding assembly, a correcting assembly, a cutting assembly, a receiving assembly, a grabbing assembly, a spot welding assembly and a wire conveying assembly, the workbench is provided with a control assembly, and the control assembly is connected with a first mounting plate; a first finger cylinder, a second finger cylinder and a third finger cylinder are mounted on the first mounting plate; the feeding assembly, the correcting assembly and the cutting assembly are arranged side by side, the receiving assembly can move to be parallel to the cutting assembly, the control assembly can drive a first mounting plate to transversely move in a reciprocating mode in the side-by-side direction of the feeding assembly, the correcting assembly and the cutting assembly and control the first mounting plate to ascend and descend, and the receiving assembly can move to the grabbing assembly. The grabbing assembly can grab welding materials on the material receiving assembly to the spot welding assembly, and the wire conveying assembly is used for conveying wire harnesses to the spot welding assembly. The multi-task parallel processing device has the effects that multi-task parallel processing can be conducted on the welding materials in the machining and transferring process, and the machining efficiency is improved.

The invention discloses equipment and a method for detecting the strength of an annular section of a large-diameter TA31 pipe, and relates to the technical field of pipes. According to the annular section strength detection equipment for the large-diameter TA31 pipe, through the design of a composite mechanism, the pipe is placed in the processing mechanism, the pipe space is restrained through the limiting mechanism, the pipe is prevented from moving in the inspection process, danger to workers is avoided, and therefore normal operation of the equipment is kept; the fixing mechanism controls the pipe to rotate and rub with the processing mechanism, so that the effect of cleaning the surface of the pipe is achieved, the situation that stains on the surface of the pipe affect the detection effect is avoided, a hydraulic rod controls a pressing plate to extrude the surface of the pipe, and the detection effect on the annular section strength of the pipe is achieved; therefore, the friction force on the surface of the pipe is increased, the pipe is prevented from shaking in the downward pressing process, and the operation stability is improved.

The invention relates to the technical field of soil film mulching machines, and discloses a rice and wheat saline-alkali soil film mulching machine and a using method thereof.The rice and wheat saline-alkali soil film mulching machine comprises a supporting cylinder, symmetrical shells are fixedly connected to the two ends of the supporting cylinder in a penetrating mode, one end of a film roller frame is fixedly connected to the side wall of the middle of each shell, and a traction frame is rotationally installed on a transverse rod of each film roller frame; the device further comprises a supporting frame, a connecting plate at the top of the supporting frame is fixedly installed on the outer wall of the shell, a disc at the bottom of the supporting frame is coaxially and rotationally sleeved with a wheel ring, and a coaxially-arranged gear ring is fixedly installed on the inner wall of the wheel ring. According to the rice and wheat saline-alkali soil film mulching machine and the using method, the two sides and the top of a mulching film can be covered with soil at the same time, the device can automatically compact soil on the two sides after covering the soil, and therefore the fixing effect of the device on the mulching film is improved, meanwhile, the soil collecting mechanism of the device can keep a certain soil collecting amount, and the working efficiency is improved. And the subsequent mulching film soil covering amount is prevented from being too small.