2599results about How to "Avoid breaking" patented technology

The invention discloses a flexible clamping jaw capable of automatically adjusting clamping force based on deformation measurement, and belongs to the field of vegetable and fruit picking devices.The flexible clamping jaw comprises a rotating mechanism, three clamping jaw mechanisms are symmetrically installed at the front end of the rotating mechanism through an installation disc, and the rotating mechanism and the clamping jaw mechanisms form a picking mechanism; the rotating mechanism can drive the three clamping jaw mechanisms to rotate through an internal rotating motor, each clamping jaw mechanism comprises a flexible clamping jaw, the tail of each flexible clamping jaw is driven by a connected cam connecting rod mechanism to swing, and the back face of each clamping jaw mechanism is fixedly provided with a monitoring mechanism. The monitoring mechanism monitors the deformation quantity of the flexible clamping jaw through a camera. According to the flexible clamping jaw, the clamping force is accurately controlled through a camera and an algorithm, and fruits are protected against damage; the three-jaw structure is stable, the process is automatic, and the efficiency is improved; ginseng can be flexibly set according to vegetables and fruits, and the adaptability is wide; data after picking is driven and optimized, long-acting operation of equipment is facilitated, and the cost is reduced.

The invention provides a fixed scroll plate with an exhaust non-return function, a pump body assembly and a scroll compressor, and belongs to the technical field of compressors. According to the scroll compressor, the buffering structure is arranged, the impact force generated when the check valve plate moves downwards is relieved, abrasion and impact of the check valve plate can be effectively reduced, and therefore the durability of the check valve plate and the reliability of the whole scroll compressor are improved. Due to the buffer structure, the hard contact of the check valve plate during up-and-down movement is reduced, so that the noise generated by collision is reduced, and the operation environment of the scroll compressor is improved. The check valve plate can automatically open or close the exhaust hole according to the pressure change of the refrigerant, it is ensured that the high-pressure refrigerant can be smoothly exhausted during exhausting, the refrigerant can be prevented from flowing reversely when exhausting is stopped, and the exhaust efficiency and the overall performance of the compressor can be improved. The effective exhaust non-return function can prevent unnecessary leakage of refrigerants, energy loss is reduced, and therefore the energy efficiency of the whole system is improved.

The invention belongs to the technical field of court ground materials, and particularly relates to a ground material of a ground throw court and a preparation method thereof. The ground material of the ground throwing field comprises the anti-skid surface layer, the elastic buffer layer and the sound insulation layer from top to bottom, and has excellent sound insulation, impact resistance and wear resistance. The polyvinyl butyral bonded acrylic sound insulation felt and the jute fiber board are used as a sound insulation felt composite material to be laid on the surface of the base layer, so that the sound insulation effect of the ground of the ground throwing field is enhanced, boric acid and phenylboronic acid are compounded to react with siloxane, and reinforced gel prepared by adding a reinforcing material has excellent shear hardening and thermal stability, so that the sound insulation effect of the ground of the ground throwing field is improved. An elastic reinforcing material is prepared by compounding alkali-treated straw fibers and a reinforcing body prepared by compounding the alkali-treated straw fibers and a hydrophobically modified sponge framework, and has remarkable creep resistance and excellent impact hardenability, and the esterified straw fibers prepared by reacting the alkali-treated straw fibers with citric acid are used as a toughening agent to be added into wear-resistant elastic microspheres prepared by rubber, so that the wear-resistant performance of the wear-resistant elastic microspheres is greatly improved. The material has excellent wear resistance, light weight and aging resistance.

A process and system for recovering electrolyte and carbon powder from electrolytic aluminum anode carbon residues are characterized in that the electrolytic aluminum anode carbon residues are crushed, dried, ground and sieved, fine powder is sent to a cyclone combustion furnace for combustion, the electrolyte in the carbon residues is molten and then enters an electrolyte melting pool, and the surface of the electrolyte melting pool can be subjected to residue stirring; the bottom of the molten pool is poured with a high-temperature-resistant material and is provided with multiple holes, the molten electrolyte flows out of the holes and enters a rotary jet granulation device, the molten electrolyte is cut into frits with small particle sizes under the gas cutting action of rotary jet, meanwhile, the molten electrolyte is cooled by airflow, and the molten electrolyte is separated from the molten pool; the small frits are further cooled, so that the surfaces of the small frits are completely solidified, the small frits are discharged through a discharge port, and flue gas generated by combustion enters a tail flue, exchanges heat with a heat exchanger, enters a dust remover system for dust removal, then enters an alkali liquor spray tower and a denitration device, and is finally emptied; according to the method, the electrolytic aluminum carbon residues are subjected to resource recycling, and the electrolyte utilization rate is increased.

The invention discloses high-density ultra-thin electronic-grade glass fiber cloth, and relates to the technical field of glass fiber cloth preparation, the high-density ultra-thin electronic-grade glass fiber cloth is formed by weaving warp yarns and weft yarns with the monofilament diameter of 4.0 microns, the warp and weft density is 90-100 pieces / inch, an air jet loom is combined with an auxiliary air jet mechanism for plain weaving, and it is guaranteed that fibers are tightly arranged; the preparation method comprises the steps of low-speed warping, weaving, desizing, deep splitting, cleaning and surface treatment. During weaving, through low-tension control and low-pressure airflow assistance, the fabric structure is more compact and uniform; a three-step method is adopted to gradually eliminate most slurry, and the slurry is further removed through liquefaction desizing; splitting and cleaning adopt a water flow and air flow combined mode, so that fiber opening is ensured, and the slurry residue rate is reduced to the minimum; finally, the strength of the high-density ultrathin electronic-grade glass fiber cloth is improved through treatment of a silane coupling agent; and low-tension and extremely low-slurry-residue-rate weaving of the high-density ultrathin electronic-grade glass fiber cloth is realized.

The invention discloses a high-temperature-resistant adhesive tape and a preparation method thereof, and belongs to the technical field of adhesive tape preparation. The adhesive tape is composed of a composite adhesive and a composite polyester film, and the composite adhesive is composed of hydroxyl polydimethylsiloxane, boric acid, 2, 2-bis [4-(4-aminophenoxy) phenyl] propane and 4, 4-bis (4-aminophenoxy) phenyl] propane. The composite polyester film is prepared from polyethylene glycol terephthalate, 1-allylimidazole, 2-bromobutane, potassium hexafluorophosphate, methacryloyloxyethyl trimethyl ammonium chloride and nano silicon dioxide, and the composite polyester film is prepared from polyethylene glycol terephthalate, 1-allylimidazole, 2-bromobutane, potassium hexafluorophosphate, methacryloyloxyethyl trimethyl ammonium chloride and nano silicon dioxide. The adhesive tape prepared by the method has excellent viscosity, high temperature resistance, aging resistance and antistatic property.

The utility model relates to a transportation vibration reduction structure of a compressor and a heat pump. The transportation vibration reduction structure of the compressor comprises the compressor, a bottom plate and a vibration reduction mechanism. The vibration reduction mechanism is provided with a first vibration reduction assembly and a second vibration reduction assembly. The second vibration reduction assembly is provided with a chassis and vibration reduction foot pads; the compressor is fixedly connected to the chassis through the first vibration reduction assembly, and the chassis is fixedly connected to the bottom plate through the vibration reduction foot pad. The fixing pieces are arranged along the periphery of the chassis at intervals; the fixing piece is arranged at the bending position of the periphery of the chassis, one end of the fixing piece is detachably connected to the chassis, and the other end of the fixing piece is detachably connected to the bottom plate. According to the transportation vibration reduction structure of the compressor, the fixing piece is arranged at the bent position of the chassis, so that rigid connection between the chassis and the bottom plate is achieved, impact force in multiple horizontal directions generated by violent jolting of the compressor in the transportation process can be better resisted, and pipeline breakage of the compressor is avoided.

The invention relates to the related technical field of molds, and discloses special equipment for plastic mold fitter mold matching, which comprises a chassis, a charger interface is formed in the front side of the chassis, a wide-light lamp leveling instrument is fixed on the rear side of the chassis, and an electric magnet, a manual magnet, a fault alarm flashing lamp and a supporting table are fixed on the top of the chassis. A laser spotlight, an adjustable air opening and an adjustable highlight illuminating lamp are fixed to the rear side of the supporting table, a supporting plate is fixed to the top of the supporting table, a storage rack is fixed to the top of the supporting plate through a locking screw, and a storage groove is formed in the upper end face of the storage rack. According to the special equipment for plastic mold bench worker mold matching, the problem that micro-metal of a mold bench worker enters respiratory tracts and lungs is solved, the problem that one hand of the bench worker illuminates and the other hand of the bench worker is complex in polishing is solved, the mold matching quality is improved with laser rays as the reference, the concept of cost reduction, efficiency improvement, environmental protection and health in the mold industry is achieved, and carrying is convenient.

The invention discloses a high-performance environment-friendly UV (ultraviolet) adhesive for batteries and a preparation method thereof, and the UV adhesive is prepared from the following raw materials in parts by weight: 20-50 parts of acrylate prepolymer, 30-70 parts of first acrylate monomer, 1-10 parts of photoinitiator, 5-15 parts of thixotropic agent and 0.5-5 parts of other auxiliaries, the acrylate prepolymer is prepared from the following raw materials: compound polyol, isocyanate and a second acrylate monomer; the compound polyol comprises a flexible polyol and a hard polyol which are compounded according to a molar ratio of 1: (1-5). According to the high-performance environment-friendly UV adhesive for the battery, the viscosity is smaller than 5000 cps, Tg is larger than or equal to 70 DEG C, the elongation at break is larger than or equal to 550%, the shear strength is larger than or equal to 5 MPa, and the resistivity is larger than or equal to 109 omega.m. The UV adhesive disclosed by the invention has the characteristics of low viscosity, high thixotropy, convenience in sizing, short curing time, good flexibility of cured adhesive, high bonding strength and excellent heat resistance and insulating property.

The invention provides nickel-carbon conductive shielding foam. The nickel-carbon conductive shielding foam sequentially comprises a conductive layer, foam, a bonding layer and an isolating layer from top to bottom, the foam comprises 25 to 40 parts of nickel-carbon nanotube-cerium oxide composite powder, 1 to 5 parts of an ionic liquid dispersant, 10 to 25 parts of organic silicone oil, 20 to 40 parts of silicone rubber, 5 to 10 parts of polyfuran, 5 to 10 parts of maleimide, 0.5 to 3 parts of a silane coupling agent, 0.01 to 0.1 part of a platinum catalyst and 0.2 to 1.5 parts of a cross-linking agent. The conductive foam can effectively restrain high-frequency electromagnetic interference generated in modern electronic equipment and ensure normal work of the equipment. A self-repairing system is constructed by adding polyfuran and maleimide. When the foam generates cracks under the action of mechanical stress or thermal cycle in the using process, the self-repairing material can automatically repair a conductive network through a reverse Diels-Alder reaction, and the shielding performance and the conductivity of the material are recovered.

The utility model belongs to the field of communication terminals, and particularly relates to an installation backboard of an Internet of Things communication terminal, which comprises an installation backboard body. A flat cable assembly is arranged on the right side of the installation backboard body, flat cable holes are formed in the bottom of the right side of the installation backboard body, a heat dissipation assembly is arranged at the bottom of the installation backboard body, and a blocking block is arranged in the heat dissipation assembly; binded cable bundles penetrate through the cable arrangement holes to be arranged in the cable arrangement groove, the cable bundles are limited through the limiting plate and the sliding shielding plate, the cable bundles are prevented from being bent to the outer portion of the cable arrangement groove, the cable bundles are limited and cannot be bent by an overlarge amplitude at the moment, and therefore the cable bundles are prevented from being damaged due to bending, and the service life of the cable bundles is prolonged. The service life of the cable bundle is prolonged, air between the installation backboard body and the communication terminal equipment can circulate through the heat dissipation grooves, and the heat dissipation device can be driven to improve the heat dissipation efficiency of the equipment.

A ceramic matrix composite micro-hole drilling quality and material removal mechanism analysis method comprises the following steps: determining a damage model and performance parameters of carbon fibers, a damage model and performance parameters of a SiC matrix, and a damage model and material attributes of an interface layer according to ceramic matrix composite micro-holes with the diameter phi of 0.5-2mm; a drill bit model and a ceramic matrix composite macroscopic model are established in simulation software, macroscopic finite element simulation is carried out, and a macroscopic finite element simulation result is obtained; a drill bit model and a ceramic matrix composite microscopic model are established in simulation software, microscopic finite element simulation is carried out, and a microscopic finite element simulation result is obtained. Carrying out a drilling test to obtain a test result; and comparing the test result, the macroscopic finite element simulation result and the microscopic finite element simulation result, and verifying the effectiveness of the macroscopic finite element simulation result and the microscopic finite element simulation result.

The invention belongs to the technical field of tunnel vault supporting, and particularly relates to a vault supporting device for reinforcing a hydraulic engineering tunnel. Comprising two supporting mechanisms symmetrically arranged along the radian of a tunnel. The supporting mechanism comprises a jacking assembly, an adjusting assembly and a bearing connecting assembly. The jacking assembly comprises a supporting pipe and an arc-shaped supporting plate. The two ends of the arc-shaped supporting plate are slidably connected with a rectangular connecting plate and an arc-shaped connecting plate. The rotating angles of the arc-shaped connecting plate and the arc-shaped supporting plate are controlled through the supporting pipe, so that adjustment is carried out according to the radian of the tunnel vault, the arc-shaped connecting plate and the arc-shaped supporting plate are attached, and the supporting effect is improved; the rectangular connecting plate is controlled to extend out through the bearing connecting assembly, so that top sealing is facilitated; and the rectangular connecting blocks on the two sides are connected, so that the middle part is prevented from being broken due to overlarge weight, and the connecting effect is improved.

The invention discloses an LED lamp bead and a preparation method thereof.The LED lamp bead comprises a support, a chip located on the support, a fluorescent diaphragm attached to the light-emitting side of the chip, transparent silica gel, a supporting ring and white glue, electrodes of the chip are connected with corresponding pins of a PCB of the support through welding wires, the transparent silica gel is located on the side face of the chip and used for connecting the chip and the fluorescent diaphragm, and the supporting ring is connected with the supporting ring through the white glue; the LED lamp bead is characterized in that the LED lamp bead is provided with a chip and a bonding wire, the chip is provided with a fluorescent diaphragm, the supporting ring is located outside the chip and surrounds the chip, the space between the supporting ring and the chip is coated with transparent silica gel, and the chip, the fluorescent diaphragm, the transparent silica gel, the supporting ring and the bonding wire are wrapped with the white glue. The LED lamp bead is provided with the supporting ring prefabricated by the transparent silica gel, and the supporting ring is used for supporting the bonding wire when the chip is combined with the fluorescent diaphragm; the welding wire is prevented from being broken when the transparent silica gel is coated, and the welding wire is enabled to extend towards the direction of the position of the support, thereby facilitating the connection between the welding wire and the corresponding pin of the support PCB.

This utility model discloses a corn threshing roller and a corn threshing roller assembly, belonging to the technical field of small agricultural threshers, mainly used for corn threshing. The technical problem to be solved by this utility model is to provide a corn threshing roller, including a rotating shaft and a supporting mechanism. A first layer of threshing ribs is arranged on the supporting mechanism with the rotating shaft as the center, and a second layer of threshing ribs is arranged outside the first threshing ribs. The supporting mechanism includes end supports arranged at the ends of the rotating shaft, and the first layer of threshing ribs is arranged between the end supports. The inner side of the first layer of threshing ribs has space for material passage. A corn threshing roller assembly is also provided, including a first and a second threshing roller arranged in parallel, forming a threshing channel between them. The first threshing roller is the aforementioned corn threshing roller, and the second threshing roller includes a second rotating shaft, a second supporting mechanism, and auxiliary threshing ribs. This utility model can improve the threshing rate and threshing efficiency, reduce the breakage rate, and improve the threshing quality.

The invention provides a manufacturing method of a 3D packaging structure of an optical engine module and a CPO module, and relates to the technical field of semiconductor packaging. Firstly, an optical chip wafer is provided, then an electric chip and an optical port protection piece are mounted on the basis of the surface of the optical chip wafer, plastic packaging is carried out on the basis of the upper portion of the optical chip wafer, the electric chip and the optical port protection piece are wrapped by plastic packaging materials, and then the plastic packaging materials are thinned until the optical chip and the optical port protection piece are exposed; the method comprises the following steps: manufacturing a TSV through hole on the basis of an optical chip wafer, thinning the bottom surface of the optical chip wafer until the TSV through hole is exposed, manufacturing an RDL layer and a solder ball on the basis of the bottom surface of the optical chip wafer, connecting the RDL layer with the TSV through hole, removing an optical port protection piece, and finally cutting the optical chip wafer to form a single optical engine module. According to the scheme provided by the invention, the optical chip is prevented from being damaged in the packaging process, and the design flexibility of the optical port is improved.

The invention relates to the technical field of medical instruments, and discloses a carotid artery micro-net woven stent. The stent comprises a stent main body divided into a stent middle part and a stent end part, the stent main body comprises a first stent, a second stent and a plurality of connecting structures, and the first stent and the second stent are both in a hollow pipe shape and are connected with each other through the connecting structures; the first support and the second support are connected at multiple positions through a plurality of connecting structures, so that movement of the first support and the second support can be limited, and the connecting structures comprise the first connecting structure and the second connecting structure. The two different connecting structures are arranged on the stent body, so that the requirement for different slippage degrees of the ends and the middle is met, layers of the intravascular stent are attached during use, the structural integrity of the stent is kept, the stent is tightly attached to a blood vessel, and good supporting and effective covering are achieved.

This invention discloses a stepwise data assimilation method for a set subspace in a nonlinear inverse problem, relating to the field of data processing technology. The invention constructs an initial prior physical set based on the physical state variables to be inverted and optimized, and historical observation data. It extracts the static subspace basis anomaly matrix, initializes the latent variable set and particle weights, calculates fractional-step incremental reweighting, evaluates the current likelihood mismatch penalty using predicted data, updates and normalizes the particle weights in the logarithmic domain, obtains the effective sample number, performs system resampling operations in conjunction with a preset resampling tolerance coefficient, eliminates low-weight particles and replicates high-weight particles, synchronously updates the latent variable set and predicted data, executes a dynamic MCMC mutation loop to generate proposed latent state vectors and affinely maps them to a high-dimensional physical space, and updates the latent variable set by evaluating the annealing target energy within the latent variable subspace until all fractional steps are traversed. Finally, it outputs the latent variable set and maps it back to the physical space.

The invention relates to the technical field of geological exploration, and discloses a metal mine prospecting exploration device and method for a field porphyry mine district, and the metal mine prospecting exploration device for the field porphyry mine district comprises a drilling machine, a drilling mechanism arranged at the front part of the drilling machine, and a connecting mechanism arranged in the drilling mechanism, the drilling mechanism comprises a connecting cylinder arranged at the bottom of the drilling machine, a first drill rod arranged at the bottom of the connecting cylinder, a drill bit arranged at the bottom of the first drill rod and an annular groove formed in the inner wall of the first drill rod. By arranging the drilling mechanism, the drilling machine can automatically adjust the flushing water amount during operation so as to adapt to different drilling target hardness, quick connection of the coring device and the drilling rod can be achieved, the assembling process of the coring device and the drilling rod is simplified, meanwhile, sufficient supporting force can be provided, and the situation that a rock core falls off due to insufficient force in the extraction process is prevented.

The utility model relates to the technical field of steel wire automatic forming machines, in particular to a full-automatic steel wire wavy line forming machine which comprises an installation frame, a line pressing assembly is arranged at the bottom of the installation frame, and an extension module is arranged on the side face of the installation frame. The full-process automatic production of the wavy line formed by the steel wire can be completely realized, each part of the machine is simple and practical, the machine has the characteristics of low cost and high efficiency, the labor cost is saved, the risk of industrial injury is avoided, the machine is an advanced specialized machine, the driving motor is used as a power source, and the production cost is reduced. The driving motor drives the first gear and the second gear to rotate through the transmission structure, then conveying of the steel wire and forming of the wavy line are achieved, and the straightness of the steel wire in the conveying process and the regular shape of the formed wavy line are guaranteed through arrangement of the first straightener and the second straightener.

The utility model discloses a water stop structure suitable for an upper gate room of a high gate with a deep and thick covering layer in the technical field of engineering water stop, which comprises a plurality of gate plates, a structural seam is arranged between two adjacent gate plates, the structural seam is communicated with a water stop cavity, and a water stop device is filled in the water stop cavity. The water stop device comprises a first mortar layer, a flexible filler layer and a second mortar layer which are sequentially filled in the structural joint from top to bottom, a copper sheet water stop assembly and a water stop belt assembly are arranged on the flexible filler layer in a penetrating mode at intervals, the overall structure is large in flexibility effect, the function of adapting to large uneven deformation between adjacent gate sections can be achieved, damage is not prone to occurring, and the service life of the water stop device is prolonged. Therefore, safe operation of the water gate structure is guaranteed.

The invention discloses an advanced treatment method of tungsten beneficiation wastewater, which is characterized in that a composite flocculant is adopted to flocculate the tungsten beneficiation wastewater, and the composite flocculant is mainly composed of cationic polyacrylamide, a flocculant A and lignocellulose, the flocculant A comprises at least one of polyferric sulfate, polyaluminum chloride, polyaluminum ferric chloride, polyaluminum ferric sulfate, ferric sulfate, ferrous sulfate and aluminum chloride. According to the advanced treatment method for the tungsten beneficiation wastewater, under the action of the composite flocculant, the cost of a treatment agent can be reduced to about 0.16-0.20 yuan / m < 3 >, the cost reduction amplitude is as high as 80% or above, the treatment time can be shortened to be within 10 min, the precipitation time is greatly shortened, meanwhile, suspended solids in the wastewater can be effectively removed, actual production requirements are met, and the method is suitable for industrial production. The method has the advantages of low treatment cost, high treatment efficiency, good removal effect, good adaptability and the like, can realize advanced treatment of the tungsten beneficiation wastewater, and is high in use value and good in application prospect.

The utility model discloses a stator assembly, a linear motor, a suspension system and a vehicle, the stator assembly comprises a stator core shaft, the stator core shaft comprises a shaft wall, the shaft wall is internally provided with a first cooling water channel, the peripheral wall of the stator core shaft is provided with a positioning groove, and the first cooling water channel is arranged in the positioning groove in the circumferential direction of the stator core shaft. The first cooling water channels and the positioning grooves are arranged at intervals; the stator core is sleeved outside the stator core shaft, the first cooling water channel exchanges heat with the stator core, the inner circumferential wall of the stator core is provided with a positioning protrusion, and the positioning protrusion is located in the positioning groove. According to the utility model, the positions of the first cooling water channels and the positioning grooves in the stator core shaft are arranged more reasonably, the structural strength of the stator core shaft is high, the cooling effect on the stator core is good, and the working performance of the stator assembly can be improved.

The invention discloses a tail fiber storage device and method for a communication box body, and relates to the technical field of tail fiber storage. The invention discloses a tail fiber storage device and method for a communication box body, and the device comprises a box body, and also comprises heat dissipation holes which are symmetrically formed in the box body, the box body is fixedly connected with a mounting plate and a connecting plate, and the mounting plate is provided with a transverse sliding groove and a longitudinal sliding groove; the ends, facing the periphery of the box body, of the transverse sliding grooves and the longitudinal sliding grooves are fixedly connected with guiding channels. According to the invention, the tail fiber is wound on the sliding take-up wheel for one circle and then is clamped in the tail fiber groove on the tail fiber plate, then the tail fiber is continuously wound on the sliding take-up wheel, and finally, the tail fiber wires straightened transversely and longitudinally are formed, so that the space in the box body is fully utilized, and meanwhile, the tail fiber wires are tidily sorted; and the tightening brackets are close to each other, so that the internal tail fiber wire is clamped, and the tail fiber wire is kept at a stable position and in a proper bending state in the storage process.

The present invention relates to the technical field of logistics boxes, and specifically to a logistics carton with a built-in reinforcement frame, wherein two reinforcement frames are arranged inside the carton enclosure, a support plate is fixed between the two reinforcement frames, the surface of the carton enclosure is provided with ventilation holes, the surface of the reinforcement frames is provided with perforations, an assembling plate is inserted into the inner ring surface of the reinforcement frame, a plastic sleeve is fixed on the surface of the assembling plate, and the plastic sleeve is inserted into the ventilation holes; the beneficial effect is: the logistics carton with a built-in reinforcement frame proposed by the present invention, by arranging the reinforcement frame and the support plate inside the carton enclosure, forms a stable frame structure, effectively improves the anti-fall performance of the carton, and prevents deformation or rupture caused by bumps and extrusion.

The utility model discloses a super-linear bidirectional sound output loudspeaker, comprising a first vibration system formed by bonding a first frame body, a first voice coil, a first voice diaphragm and a first FPC soft board, a second vibration system formed by bonding a second frame body, a second voice coil, a second voice diaphragm and a second FPC soft board, and the two vibration systems are bonded and face opposite directions; the first FPC soft board and the second FPC soft board are provided with bonding pad points, the bonding pad points are located above the corresponding voice coil lead wires, the first central magnet, the second central magnet, the first washer and the second washer are connected to the two surfaces of the U iron to form an assembly, and the U iron is connected with the side magnet. The side magnets are connected to the inner sides of the two frame bodies and located on the two sides of the assembly to form a center magnetic circuit system. The beneficial effects of the utility model are that the FPC soft board is directly welded with the voice coil lead, so that the voice coil lead is prevented from being bent, and the power resistance of the loudspeaker is improved.

The utility model relates to a building reinforcing beam column structure which comprises a base, a fixing rod fixedly connected to the top of the base, an installation box connected to the outer portion of the fixing rod in a sliding mode, a supporting plate fixedly connected to the top of the installation box and a controller fixedly installed on the front face of the fixing rod. A supporting mechanism is arranged outside the fixing rod, the buffering assembly comprises four sleeves fixedly connected to the top of the supporting plate and an abutting plate arranged at the top of the supporting plate, and mounting blocks are fixedly connected to the inner bottom walls of the sleeves. According to the structure for reinforcing the beam column of the building, the elastic telescopic rods and the springs are arranged, so that the risk that the fixing rods are broken or deformed when being excessively stressed is avoided, the supporting effect of the structure for reinforcing the beam column of the building is further improved, and the structure for reinforcing the beam column of the building is kept stable during use; and the advantages of good supporting effect and high practicability are achieved.

The utility model relates to a steel pipe necking machine which comprises a bottom plate, a hydraulic cylinder, a fixed plate, a clamping structure and templates, the templates comprise a fixed template and a movable template, necking dies are respectively arranged on the fixed template and the movable template, the clamping structure is located between the fixed template and the movable template, and the movable template and the clamping structure are respectively connected with the bottom plate in a sliding mode. The fixed plate and the fixed template are fixedly connected with the bottom plate, the hydraulic cylinder is fixedly connected with the fixed plate, and the movable template is fixedly connected with the output end of the hydraulic cylinder. According to the steel pipe necking machine, the pipe orifice of the steel pipe is not easy to break, and the forming quality of the steel pipe after necking is improved.

The invention relates to the technical field of preparation of yarns for PPS composite electrolytic diaphragms, in particular to a preparation method of yarns for PPS composite electrolytic diaphragms.A first cooling unit and a second cooling unit are included, PPS filaments are subjected to multi-time stepped cooling through cooperation of the first cooling unit, the second cooling unit and an air cooling piece, and the PPS composite electrolytic diaphragms are obtained; according to the PPS filament cooling device, cooling can be carried out mildly, the PPS filaments are prevented from being cooled unevenly due to shock cooling, the quality of the PPS filaments is prevented from being affected, the cooling water with the relatively low temperature in the second cooling unit is cooled through the sublimation phenomenon of dry ice, and the cooling purpose can be achieved without using a circulating water cooling machine; compared with a traditional method that low-temperature cooling water is introduced all the time and cooling water with the temperature rising is discharged all the time, part of the cooling water needs to be discharged and part of the low-temperature cooling water needs to be introduced after the device is used for a period of time, and therefore the purpose of reducing the demand quantity of the cooling water is achieved.

The utility model relates to the technical field of communication technology, in particular to a sealed optical cable insulation joint, which comprises a left sealing box, a left optical cable is inserted in the left sealing box, a right sealing box is arranged on the right side of the left sealing box, a right optical cable is arranged in the right sealing box, and a sealing mechanism is arranged on the outer wall of the left sealing box. And a clamping mechanism is arranged on the left side of the left sealing box. According to the utility model, the box body is sealed and fixed through the sealing mechanism, so that a part of devices can be in sealed butt joint with gaps of the box body, optical cables are clamped through the clamping mechanism, so that a part of devices can fix the optical cables on the side wall of the sealing box, and the sealing performance and the stability of the device are improved.