49results about How to "Solve the problem of insufficient strength" patented technology

Disclosed is a metal hydride plate-fin heat exchanger, which belongs to the industrial heat exchange and energy saving technique field. The invention comprises: an upper cover plate, a fluid path flat tine fin, a spacer plate, reaction bed units, a fluid path tail sealing tape, a lower cover plate, a bolt component, a through hole flanged disc, a blind plate flanged disc, a fluid path head sealing tape, a hydrogen pipe, a fluorine rubber flange gasket, a rear enclosing cover, a front enclosing cover, a liquid inlet, a liquid outlet, a filter sheet gasket and a millipore filter sheet. Each reaction bed unit includes an upper cover plate, a unit tail sealing tape, a unit lateral sealing tape, a lower cover plate and a unit serrate fin. Each reaction bed unit has an open end and is welded with a serrate fin in the inside, thereby the heat exchange area and the effective thermal conductivity are greatly increased, and the intensity of a heat exchange unit can also be ensured under the condition of increasing the heat capacity of the heat exchange unit indistinctively. In addition, filtration and sealing difficulties of metal hydrides are greatly reduced by adopting the structure that all the reaction bed units are connected and fixed on the through hole flanged disc in parallel, meanwhile, the mass transfer capability of hydrogen will not be reduced.

The invention discloses an elastic mechanism used for a suspension. The elastic mechanism is characterized in that peripheral-distribution power springs and a gear drive mechanism are used, the torqueof the power springs is increased to meet the demand of vehicle suspension elastic elements for torque, the size and the weight of the suspension elastic elements are reduced, and the elastic mechanism is structurally composed of the power springs 1, an installing base plate 4, a planetary gear 10, an inner tooth ring 12 and a motor 20, is suitable for suspensions of passenger vehicles, railway vehicles and engineering vehicles, and is particularly suitable for suspensions of electric automobiles.

The invention provides a vertical and combined plant planting frame. The plant planting frame comprises a planting frame body, the planting frame body is provided with planting bags, each planting bag is of a three-layer structure, and the middle layer of each planting bag is a support frame; the planting frame body is provided with a plurality of planting bag racks, the planting bag racks are arranged at equal intervals, and each planting bag rack is provided with a first limit block, a second limit block and a third limit block; according to the vertical and combined plant planting frame, when the external connection between a sixth water pipe and a water source is not convenient, water in a water storage tank and water in a third groove can be pumped through a water pump, the water storage tank is located at the lower end of the planting frame body, can collect water which flows out from the planting bags and plays a role of water circulation and re-utilization, the water storage tank is provided with a filter net, and the filter net can filter soil and leaves which fall down; the planting bag racks are provided with the limit blocks, and the limit blocks can play a role of fixing the positions of the planting bags. According to the vertical and combined plant planting frame, various plants can be planted in the planting bags, the combination forms of the plants are diverse, the practicability is high, and the frame is suitable for indoor use.

The invention relates to the technical field of building materials, in particular to a corrosion-resistant external wall insulation board. The corrosion-resistant external wall insulation board comprises a wall and an insulation board main body; the insulation board main body is located on the outer side of the wall; a groove is formed in the outer side of the insulation board main body; a decorative layer is fixedly installed in the groove; and connecting blocks are arranged on the left side and the right side of the insulation board main body. Through the arrangement of a polymer mortar layer, a corrosion-resistant layer, a fireproof heat insulation layer, a heat preservation layer, the connecting blocks, sealing strips and threaded columns, the advantages of being high in safety and stability, convenient to install and fix, capable of effectively improving the corrosion resistance, excellent in heat preservation performance and fireproof performance and capable of prolonging the service life are achieved; and the problems that an existing external wall insulation board is relatively poor in connection stability, low in corrosion resistance, prone to falling off due to corrosionafter being exposed to the outer surface for a long time and insufficient in overall strength are solved.

The invention relates to a waterproof and moisture-permeable film and preparation and application thereof. The moisture-permeable film is prepared by the steps that in PU moisture-permeable pulp, polyoxyethylene (PEO) is drawn into superfine fibers through an electrostatic spinning technology and the superfine fibers are implanted therein, water-soluble PEO is dissolved out through water washing after film forming and attaching, microporous channels are formed in the film, and the microporous waterproof and moisture-permeable effects are achieved. Compared with a PU film, the moisture permeability of the novel waterproof and moisture-permeable film is improved by 30%-80%, the strength is improved by 100%-150% compared with an electrostatic spinning film, and the attaching performance and the subsequent processability are better.

The invention discloses a production line of a heat preservation and non-disassembling formwork. The production line is characterized in that the production line of the heat preservation and non-disassembling formwork is a production line designed and combined together according to capacity requirement, production lines are arranged together, a stirring system is located above a heat preservationslurry moving blanking system to supply materials to the heat preservation slurry moving blanking system. The heat preservation slurry moving blanking system comprises a rack, a rail, a moving blanking hopper and a power system. The rack spans above the combined production line. The moving blanking hopper supplies the materials to the combined single production lines in turn. A cementing materialconveying system communicates with a raw material bin, first material distributing systems, second material distributing systems and third material distributing systems, wherein the first material distributing systems, the second material distributing systems and the third material distributing systems are located on the corresponding single production line. According to the production line of theheat preservation and non-disassembling formwork, the problems that the equipment input is excessive, and equipment is repeatedly built and installed due to the fact that the multiple production lines are needed to be built in order to enlarge the production capacity are solved, and the problems that the product strength is not enough, the product maintenance time is too long, the maintenance equipment investment is high, and a large number of maintenance sites are occupied are solved.

The invention relates to a coil spring combined elastic mechanism through rope transmission. The mechanism has a function meeting the torque requirements required by vehicle suspension elastic elements through amplifying the torque of a coil spring as well as a function of changing stiffness, and can be applicable to suspension use for passenger vehicles, rail vehicles and engineering vehicles aswell as weight balancing use for a mechanical arm, and is also used as an energy storage mechanism for a vehicle short-period traction or launch device. The specific structure of the mechanism is composed of a first side plate 2, a second side plate 9, an outer cylinder 1, a steel wire rope shaft 4, a left-side coil spring 3, a right-side coil spring 13, an output steel wire rope groove cylinder 11, an output connecting shaft 5, two disc bevel gears 19, a small bevel gear 20, a small worm wheel 21, a worm 25 and a motor 26, and is particularly suitable for suspension use of electric automobiles.

The invention relates to the technical field of supports, in particular to a mining drivage shielding support for coal mine. The mining drivage shielding support for coal mine comprises a base, a topbeam and a crawler device. One ends of multiple first fulcrum rods are hinged to the left side of the base, one ends of multiple second fulcrum rods are hinged to the right side of the base, the middles of the first fulcrum rods and the second fulcrum rods are hinged, the other ends of the first fulcrum rods are hinged to one ends of the second fulcrum rods above the first fulcrum rods, one ends of the second fulcrum rods are hinged to one ends of the first fulcrum rods above the second fulcrum rods, and the middles of the first fulcrum rods above the second fulcrum rods and the second fulcrumrods are hinged. The mining drivage shielding support has the advantages of being simple in structure, convenient and safe to operate, good in supporting performance, easy to apply and popularize andthe like, puking accidents can be effectively avoided, the safety of the coal mining operation is guaranteed, a roof is not likely to deviate during supporting through guide rods, first hydraulic cylinders are evenly arranged at intervals, it can be effectively avoided that several portions are stressed excessively, the top beam is not prone to deformation, and supporting is firm and safe.

The invention discloses a plastic mold with an automatically separated material overflow structure. A cavity is communicated with a runner through a single-side pouring gate; plastic in the runner enters the cavity after being divided into two strands from the single-side pouring gate and then is gathered at the tail filling end; the plastic mold further comprises the material overflow structure arranged at the tail filling end and a material overflow mandril of the material overflow structure; the material overflow structure comprises a convex boss and a concave boss; the convex boss comprises a material overflow cavity communicated with the cavity; a reverse tunnel gate is formed in one end of the material overflow cavity and is connected with the tail filling end of the cavity; the other end of the material overflow cavity is communicated with a balance pipe; the length of the balance pipe is equal to that of the reverse tunnel gate; a mandril hole is formed between the reverse tunnel gate and the balance pipe; the length of the mandril hole is equal to that of the balance pipe; the material overflow mandril is fixed on a thimble fixing plate. According to the plastic mold, the problem that the product intensity is low because of a dissolving trace is effectively solved, and the problems existing in automatic separation of the material overflow structure are solved.

The invention discloses a constructed wetland filler which comprises a through hole penetrating through a body. The through hole and the body are coaxially arranged. The peripheral side surface of the body is concave and/or convex. The filler is prepared by mixing and pressing main raw materials including clinker, building slag, a strong caking agent and water according to a ratio. Through the concave and/or convex outer edge of the body, the contact area between the body and the outside is greatly increased, the attachment area of the body is enlarged, the number of microorganisms in unit area is increased, and then the sewage purification capacity of the constructed wetland is improved.

The invention relates to a low-temperature nozzle gas follow-up scanning device for frozen sand mold printing. The low-temperature nozzle gas follow-up scanning device comprises a printing nozzle, a rack for installing the printing nozzle, a gas nozzle, a fixing support of the gas nozzle, a gas supply pipe and a high-pressure nitrogen supply device. A straight gas inlet pipe is arranged at the upper end of the gas nozzle to be connected with the fixed bracket; an air flow channel is arranged in the straight air inlet pipe and is used for conveying air; an air pipe joint is arranged on the straight air inlet pipe and is connected with the air supply pipe; the high-pressure nitrogen supply device comprises a nitrogen tank and a high-pressure valve arranged at an outlet of the nitrogen tank; a nitrogen accommodating cavity communicated with the gas flow channel is formed in the gas nozzle; and a plurality of nozzles are uniformly distributed at the lower end of the gas spray head and are communicated with the nitrogen accommodating cavity through a gas spraying channel. According to the method, freezing of micro-droplets in the frozen sand mold printing forming process is enhanced, so that the overall strength of the frozen printing sand mold is improved, the frozen sand mold is prevented from collapsing in advance during pouring, and meanwhile, the performance of the obtained casting is improved.

The invention provides a water channel which comprises a channel body, wherein at least one washing channel is formed in the channel body, and an upper bump and a lower bump are separately formed in two side faces of the bottom of each of the washing channels and the chambered edge of each of the washing channels. As the upper bumps are formed on the upper surfaces of the bottoms of the water channels and the chambered edges, surfaces which are inconsistent in thickness are formed in the bottom of the channel, so that the problem of insufficient strength as a bottom metal plate is thin as the water channel is stretched is solved, and meanwhile, the acoustic structure of the bottom of the water channel is changed. The water channel has the anti-noise function when a faucet discharges water or tableware falls into the water channel, and the problem that the conventional water channel which is used is easily scratched by tableware such as a ceramic bowl and a metal article on the surface of the bottom is solved as the upper bumps are formed in the bottom of the water channel, and the bottom of the water channel is kept attractive.

The invention relates to a fan-out packaging structure with an electromagnetic shielding function, which comprises a wafer, a cavity arranged on the wafer, and a metal shielding layer, a repassivation layer, a first rewiring layer, a metal bump arranged on the first rewiring layer, a chip and a metal bump arranged on the chip which are sequentially arranged on the surface of the wafer and the cavity, the cavity, the chip, the first rewiring layer, the metal bumps and the like form a plastic package body, the second rewiring layer, the PI protection layer, the UBM layer and the solder balls are sequentially arranged on the surface of the plastic package body, and the metal heat dissipation layer is arranged on the lower surface of the wafer. The invention further provides a packaging method of the fan-out type packaging structure with the electromagnetic shielding function. According to the fan-out type packaging structure and the packaging method, the packaging efficiency is high, the electromagnetic shielding effect is good, the structure is stable, and heat dissipation is easy.

The invention discloses a structure for widening bridge by additionally arranging steel bent caps on pier tops. The structure comprises a bridge body, a second screw hole is formed in the lower end face of the bridge body, a broadening beam is arranged below the bridge body, side opening grooves are formed in the left side and the right side of the upper end face of the broadening beam, second buffer seats are fixedly connected with the upper end faces of the side opening grooves, a connecting beam is arranged above the second buffer seats, a communicating block is arranged above the connecting beam, an upper opening groove is formed in the upper end face of the communicating block, first screw holes are formed in the upper end face of the broadening beam, a main bolt is arranged below each first screw hole, a reinforcing steel bar is arranged below each main bolt, and plugging cement paste is arranged below each reinforcing steel bar. By arranging the widening beam, the first screw holes, the second screw holes, the reinforcing steel bars, the main bolts and the plugging cement paste, the action that the widening beam is connected with the lower end face of the bridge body and then the reinforcing steel bars are inserted into the first screw holes to be plugged through the plugging cement paste can be completed, and the effect of reinforcing connection and fastening of the widening beam is achieved.

The invention discloses a special chain plate for a feeding frame cleaning machine. The special chain plate comprises a chain. The chain is fixedly provided with a plurality of operation rolling wheels. Insertion groove plates are fixedly arranged on the side face of the front end of the chain. Insertion groove parts correspond to the operation rolling wheels in position in a one-to-one mode. Feeding frame grooves are formed between the insertion groove plates. According to the special chain plate for the feeding frame cleaning machine, by arranging the chain, the operation rolling wheels andthe feeding frame insertion grooves, the good impact performance, tensile strength, impact capacity and fatigue performance are achieved, meanwhile, the effects of bending transmission and conveying are achieved, and the problems of poor flexibility of high strength chains and insufficient strength of side bending chains are solved.