5822results about How to "Reduce weight" patented technology

The invention relates to the technical field of drying equipment, in particular to clothing cloth drying equipment. The clothing cloth drying equipment comprises a box body, a discharging shaft for discharging cloths, a drying module, an ironing module, an air-drying module, a rolling shaft for rolling the cloths and a controller. The top of the left side of the box body is provided with a storinghole for storing the cloths, a damping piece mounted at the bottom of the box body is arranged under the storing hole, and the discharging shaft is vertically mounted on the damping piece. The dryingmodule is used for drying the cloths, the ironing module is used for ironing the cloths, and the air-drying module is used for air-drying the ironed cloths. The rolling shaft is located on the rightside of the air-drying module, a material taking hole for taking out the cloths is formed in the top of the box body over the rolling shaft, the rolling shaft is driven through a rolling motor, and the rolling motor is electrically connected with the controller. The clothing cloth drying equipment is mainly suitable for being used in a clothing manufacturing shop and has the characteristics that the size is small, the weight is small, the price is low, and energy consumption is little.

The invention provides an outer rotor liquid cooling motor and an aircraft. The outer rotor liquid cooling motor comprises a power module, a first heat dissipation module and a second heat dissipation module. The outer rotor liquid cooling motor is provided with a first channel and a second channel, the suction pump is used for sucking cooling liquid, the cooling liquid flows to the stator and the first channel through the liquid guide pipe, and the cooling liquid is used for absorbing heat of the stator; the air outlet communicates with the second channel and is used for forming cooling airflow, and the cooling airflow sequentially flows through the converter, the second channel and the air outlet and is used for cooling the cooling liquid. The first heat dissipation module and the second heat dissipation module are arranged in the outer rotor liquid cooling motor, a cooling liquid circulation system and a cooling gas circulation system are formed, the stator is cooled through cooling liquid, the cooling liquid is cooled through cooling air flow, meanwhile, the cooling air flow can further penetrate through the interior of the outer rotor liquid cooling motor, and the cooling effect is improved. Heat energy in the outer rotor liquid cooling motor is taken away, and the heat dissipation efficiency of the outer rotor liquid cooling motor is improved.

The invention relates to the technical field of building materials, and particularly discloses high-strength lightweight concrete containing hollow glass beads and a preparation method of the high-strength lightweight concrete. The high-strength lightweight concrete containing the hollow glass beads is prepared from cement, fly ash, carbon fiber grafted hollow glass beads, lightweight sand, deionized water, polypropylene fiber grafted rubber particles and a water reducing agent according to the mass ratio of (58-75): (25-38): (45-65): (20-40): (42-55): (35-55): (5-12) through mixing, mold filling, vibration molding, covering and demolding. The addition amount of the hollow glass beads is strictly controlled, the influence on the overall strength of the concrete is avoided, the density and weight of the concrete are reduced due to the addition of the light sand and the hollow glass beads, the compactness and integrity of the concrete are improved due to the synergistic effect of the two added fibers, and the raw materials have excellent cohesiveness; the concrete can effectively absorb and disperse stress, and has the advantages of excellent strength, light weight, good durability and excellent comprehensive performance.

The invention relates to the technical field of railway vehicles, and provides a wheel set, a bogie and a railway vehicle. The wheel pair comprises a shaft sleeve structure, an axle, a pair of wheels and a connecting structure; the axle is rotationally arranged in the shaft sleeve structure; the pair of wheels is arranged at the two ends of the shaft sleeve structure respectively and rotationally connected with the shaft sleeve structure. The connecting structure is connected with the axle and the wheels and used for achieving synchronous rotation of the axle and the wheels. According to the wheel set, the bogie and the railway vehicle, the wheels are rotationally connected with the shaft sleeves, the axles are rotationally connected with the shaft sleeves, synchronous rotation between the axles and the wheels is achieved through the connecting structures, torque is transmitted between the axles and the wheels, the shaft sleeves bear bending moment, and therefore decoupling of the torque transmission function and the bearing function is achieved; the requirement on the strength of the axle is effectively reduced; in addition, the freedom degree of structural design is improved, and the overall weight is reduced.

The invention relates to the field of constructional engineering, and discloses an assembly type reinforced concrete-steel structure foundation pit supporting system convenient to disassemble and a construction technology, and the assembly type reinforced concrete-steel structure foundation pit supporting system comprises a top beam, a waist beam, a supporting pile and an inner supporting system; the inner supporting system is formed by assembling a standard steel-concrete beam section main support and a steel member auxiliary support in cooperation with a jack adjusting system. The invention further provides a new system on-site assembly construction process, namely detailed steps of assembly construction from the uppermost layer to the lower layer step by step. The fabricated structure integrates the advantages of two fabricated structures, is suitable for foundation pit supporting with large stress and strict deformation control, and has the advantages of being high in construction speed, short in construction period, low in construction cost, convenient to dismantle and capable of completely recycling most of inner supporting components compared with a traditional cast-in-place steel-concrete foundation pit supporting system.

The invention discloses a strain of bifidobacterium animalis dipro-60 and a preparation method thereof. The invention further discloses a preparation, and the preparation contains the bifidobacterium animalis dipro-60. The bifidobacterium animalis dipro-60 used in the invention has the ability of producing bile salt hydrolase BSH, the ability of reducing cholesterol, the ability of inhibiting helicobacter pylori and the ability of reducing inflammatory factor TNF-alpha; further animal experiments show that the dipro-60 can improve lipid metabolism related diseases, can significantly reduce weight gain of obese mice induced by high fat, significantly reduce the liver weight of the obese mice, reduce the content of triglyceride and blood sugar in blood, improve intestinal barriers and improve the lipid metabolism related diseases, and the dipro-60 can improve the lipid metabolism related diseases. Liver lipid accumulation caused by obesity or hyperlipidemia is improved, and bone loss caused by obesity or hyperlipidemia is improved.

The invention discloses an impact-resistant and distortion-resistant outdoor polyethylene power cable, and relates to the technical field of cables, the impact-resistant and distortion-resistant outdoor polyethylene power cable comprises a cable core, four annularly distributed wire cores are arranged in the cable core, each wire core is composed of an inner-layer conductor, an outer-layer conductor, a heat conduction enhancement layer, an inner enhancement layer and an inner insulation layer, a shielding combination layer is arranged outside a wrapping layer, and a shielding layer is arranged outside the wrapping layer. The shielding combination layer is composed of a high-conductivity metal thin film layer, a nanometer shielding layer and a protective coating, the anti-impact combination layer is arranged outside the shielding combination layer, the anti-impact combination layer is composed of an impact dispersion layer and an energy absorption layer, the anti-distortion combination layer is arranged outside the anti-impact combination layer, and the anti-distortion combination layer is composed of an impact dispersion layer and an energy absorption layer. The anti-distortion combination layer is composed of a core layer and an elastic buffer layer, an outer sheath is arranged outside the anti-distortion combination layer, and the outer sheath is composed of a reinforcing layer, a blocking layer and an outer protective layer, so that the problems that the power cable is poor in impact resistance and distortion resistance and inconvenient to maintain are solved.

The invention discloses a construction method of an ultra-deep buoyancy type double-wall steel hanging box based on a strong tide reciprocating flow sea-crossing bridge bearing platform. The construction method comprises the five process steps of preparation before construction of the steel hanging box, hoisting and lowering of the steel hanging box, preparation before pouring of bottom sealing concrete, pouring of the bottom sealing concrete and construction of the bearing platform. According to the design and construction method for the ultra-deep buoyancy type double-wall steel hanging box based on the strong tide reciprocating flow sea-crossing bridge bearing platform, the buoyancy cabin is arranged for the double-wall steel hanging box of the strong tide rapid flow ultra-large water head to ingeniously solve the problem that the self weight of the steel hanging box is large, four pile casing post-cast strips are reserved to serve as stabilizing measures for resisting reciprocating flow impact in the bearing platform construction period, and the construction efficiency is improved. The construction technology is ingenious, a foundation is laid for smoothly achieving the construction period target of the Hangzhou bay cross-sea railway bridge, and good economical efficiency, practicability and application and popularization value are achieved.

The invention belongs to the technical field of battery thermal management, and discloses a battery pack and a phase change material coupling liquid cooling composite thermal management system.The battery pack comprises a plurality of battery structures, each battery structure comprises a lithium battery, a fin structure, a phase change material filling area and a liquid cooling plate, and the fin structure is arranged on the periphery of the lithium battery; the liquid cooling plate is arranged on the periphery of the fin structure, a phase-change material filling area is formed between the liquid cooling plate and the fin structure, and the phase-change material filling area is filled with a phase-change material for absorbing redundant heat and generating phase change, so that the temperature fluctuation of the battery is reduced. The lithium bromide heat pump and the direct-current power supply are combined, and accurate adjustment of the temperature of the battery pack is achieved through efficient heat exchange and intelligent control. The system can be rapidly switched between a cooling mode and a heating mode, and it is ensured that the battery is always kept within the optimal temperature range in different working environments.

The embodiment of the invention provides a base station antenna, and relates to the technical field of communication. The base station antenna comprises a housing, a phase shifter and a combiner. The shell is provided with combining cavities and phase shifting cavities, the two phase shifting cavities are arranged side by side in the first direction, the combining cavities are arranged on the same side of the two phase shifting cavities in the second direction in a stacked mode, the first direction is perpendicular to the second direction, and the size of the combining cavity in the first direction is larger than the size of any phase shifting cavity and smaller than the sum of the sizes of the two phase shifting cavities; the phase shifter comprises two phase shifting modules corresponding to the phase shifting cavities, each phase shifting module is arranged in the corresponding phase shifting cavity, and each phase shifting module is provided with a phase shifting network; the combiner is arranged in the combining cavity and provided with a combining network, and the combining network is connected with the two phase shift networks. According to the base station antenna provided by the embodiment of the invention, multi-frequency, miniaturization and integration are realized, the gain, radiation efficiency and sidelobe performance of the base station antenna are optimized, the feed network is simple, and the resonance phenomenon is avoided.

The utility model provides a battery cell top cover and a battery, and relates to the technical field of lithium batteries. Specifically, the battery cell top cover comprises a cover plate, an upper pole and a lower pole, wherein the cover plate is provided with pole holes for accommodating the upper pole and the lower pole; the upper pole partially protrudes downwards to form a first groove, the lower pole partially protrudes upwards to form a second groove, and the bottom wall of the first groove is connected with the bottom wall of the second groove. Based on the arrangement of the first groove and the second groove, the weights of the upper pole and the lower pole are respectively reduced, and certain materials of the upper pole and the lower pole are saved, so that the lightweight design of the battery cell top cover is realized, and the manufacturing cost of the battery cell top cover is reduced at the same time.

The invention relates to laser communication, in particular to a non-rotating type space laser communication system and method based on a liquid crystal phase regulation and control device, and aims to overcome the defects that in the prior art, a liquid crystal spatial light modulator is small in deflection angle and small in transmitting and receiving aperture, and the requirements for the capturing and tracking range and aperture of space laser communication are difficult to meet. The non-rotation type space laser communication system based on the liquid crystal phase regulation and control device comprises an adjustable phase delayer, a liquid crystal polarization grating module, a beam shrinking module, a liquid crystal space light modulator, a fine tracking galvanometer, a light splitting module, a coarse tracking module, a fine tracking module, a communication module and a data processing module, according to the communication method based on the system, light beam deflection is carried out through the adjustable phase delayer, the liquid crystal polarization grating module, the liquid crystal spatial light modulator and the fine tracking galvanometer, a traditional mechanical rotary table is replaced, and high-precision adjustment is achieved.

The invention provides a battery pack mounting structure for a vehicle, which comprises a first battery mounting unit, and the first battery mounting unit comprises a first square frame, a second square frame and a third square frame which are sequentially arranged at intervals in the direction of a longitudinal beam; the first longitudinal supporting rod and the second longitudinal supporting rod are arranged in parallel; the third longitudinal supporting rod and the fourth longitudinal supporting rod are arranged in parallel; a first guard plate bracket; a first vertical rod, a second vertical rod, a third vertical rod and a fourth vertical rod; a plurality of rubber bushings or elastic connectors; a plurality of mounting brackets; the first connecting pieces are arranged on the first square frame, the second square frame and the third square frame; and the second connecting pieces are arranged on the first square frame, the second square frame and the third square frame. The first battery installation unit and the battery pack can be pre-installed in a factory, the first battery installation unit and the battery pack can be connected to the installation support on the longitudinal beam only through a rubber bushing or an elastic connecting piece on site, the length is adjustable, light weight is achieved, and the invention further provides an installation method of the battery pack for the vehicle.

The utility model relates to a low total length 8M foresight optical lens, which is characterized in that an optical system of the lens is composed of a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a fifth lens, a sixth lens and a seventh lens which are sequentially arranged from left to right along a light incident light path. The lenses are made of plastic and glass materials, the first lens, the second lens, the fourth lens, the fifth lens and the sixth lens are glass spherical lenses, the third lens and the seventh lens are plastic aspheric lenses, and the fifth lens and the sixth lens form a balsaming lens group. By reasonably distributing the focal power and the surface type of each lens, the central thickness of each lens, the distance between the lenses on the optical axis and the like, the total length of the lens and the radial size of each lens are reduced while the requirements of a front-view wide-angle camera and a front-view narrow-angle camera are replaced by the low-total-length 8M ultra-wide-angle imaging performance of the lens; and the lens group is miniaturized.

The invention discloses a dexterous hand finger based on connecting rod transmission, a bionic mechanical arm and a humanoid robot, belongs to the field of bionic mechanical arms, solves the problem that a transmission mechanism of an existing dexterous hand is low in response speed, and adopts the technical scheme that the dexterous hand finger mainly comprises a finger base and a finger body, a driver and a transmission mechanism in transmission connection with the driver are arranged on the finger base, the driver drives the finger body to bend and / or swing through the transmission mechanism, the transmission mechanism comprises a guide piece and a sliding block installed on the guide piece in a sliding mode, and the sliding block is in transmission connection with the finger body. A traction rope connected with the sliding block is wound on an output shaft of the driver, the driver controls the output shaft to rotate forwards and backwards so as to drag the sliding block to slide back and forth along the guiding piece through the traction rope, and then the finger body is controlled to bend and / or swing. The finger is mainly used for driving the sliding block to move through the pulling rope so as to control the finger body to bend and swing, and the response efficiency of the finger body can be improved.

The invention discloses an anti-unmanned aerial vehicle power rotary flying rope net capturing device and a control method thereof, and belongs to the technical field of unmanned aerial vehicles. An electromagnet circuit is controlled to be switched on through a relay, so that an electromagnet instantly loses attraction force, and the four brushless motors are rapidly, synchronously and accurately released; the brushless motor is used as a power source for unfolding the catching net to drive the catching net to unfold and cover a target. Wherein the magnet vane is attracted with the electromagnet when the electromagnet is powered off so that the four corners of the catching net can be fixed to the unmanned aerial vehicle, the influence of the electromagnet on the brushless motor is effectively isolated in the whole process, and the flight stability is ensured. The net ring can rotate freely, the direction of the catching net traction rope is kept stable, and winding with a motor or a propeller is avoided; the ball bearing and the magnet vane jointly ensure the height of the catching net traction rope, the catching net device is prevented from being separated from the motor, and the whole device can achieve synchronous and safe falling of all components and achieve the recovery function.

The utility model relates to the technical field of electroencephalogram acquisition equipment, in particular to a dry type brain electrode and an electroencephalogram cap. The dry type brain electrode comprises an electrode needle and a base used for loading the electrode needle. The base is used for being installed on the wearable device. The base is provided with an assembling end face used for installing the electrode needle. And a conductive circuit is arranged in the base. The conductive circuit is connected with the electrode needle. And the plurality of electrode needles are circularly arranged on the assembly end face along the center line of the base to form a detection unit. The electrode needle comprises a connection section and a detection section which are connected in sequence. The connecting section is connected with the assembling end face of the base. The cross-sectional area of the detection section is smaller than that of the connection section. According to the dry type brain electrode, the multiple electrode needles are loaded on the base, the electrode needles penetrate through the hair of the head of the human body, the end of the detection section is made to make contact with the scalp surface, and therefore the function of collecting electroencephalogram signals is achieved, the reliability of contact between the detection section and the epidermis of the head is improved, and the stability of electroencephalogram signal collection is improved.

The invention discloses a cover plate assembly and a battery, and relates to the technical field of batteries, the cover plate assembly comprises a cover plate, a pressing ring and a pole, and the cover plate is provided with a mounting hole arranged in a front-back penetrating manner along the thickness direction of the cover plate; the pole is arranged in the mounting hole in a penetrating manner; the pressing ring is arranged on the front side of the cover plate and sleeves the pole, and the pressing ring is welded and fixed with the peripheral side of the pole; the width of the pressing ring is W, the thickness of the pressing ring is H1, the diameter of the pole is D, and the area of the front end face of the pole is S. By controlling the width W of the pressing ring and the diameter D of the pole, the pressing ring can provide enough welding area, and the welding mark can reach enough connection width, so that stable connection between the pole and the pressing ring is ensured; by controlling the thickness H1 of the pressing ring and the area S of the front end face of the pole, the welding mark can reach enough connection depth, the connection force of the welding mark is improved, and the problem of welding failure of the pole and the pressing ring is effectively avoided.

The utility model provides a storage box bottom structure with a rack, which comprises a box bottom formed by welding a circular top cover and a plurality of scalloped segments; the rack small end frame is arranged on the outer side of the center of the top cover and used for being connected with an engine; and the plurality of rack force transmission plates are uniformly connected to the circumferential position of the rack small end frame and respectively extend to the scalloped segments from the top cover. The box bottom structure has the advantages of being simple in structure and capable of improving carrying capacity.

The invention discloses an ablation-resistant long-fiber reinforced nylon material for a battery pack, and relates to the technical field of nylon materials, the ablation-resistant long-fiber reinforced nylon material comprises the following raw material components by weight: 60-80 parts of nylon resin powder, 30-50 parts of a long-fiber reinforced material, 10-18 parts of aluminum diethylhypophosphite master batch, 8-15 parts of bromine-antimony composite master batch, 3-7 parts of montmorillonite, 12-20 parts of aluminum hydroxide, and 2-6 parts of nano-silica. The composite material is prepared from the following components in parts by weight: 1-4 parts of carbon nanotubes, 0.5-1.2 parts of an antioxidant I, 0.3-0.8 part of a lubricant I, 2-5 parts of a compatilizer, 0.1-0.4 part of a nucleating agent and 0.2-0.6 part of an anti-ultraviolet agent. By adding the diethyl aluminum hypophosphite master batch, the flame retardant property of the nylon material is improved, the processability of the nylon material is improved, the ablation resistance of the nylon material is improved, and the problems of insufficient flame retardant property, poor processability and poor ablation resistance of the nylon material can be solved.

The invention discloses a composite material storage box forming mold and a manufacturing method thereof, and belongs to the technical field of composite material forming molds. An end socket connecting block, an end socket cylinder section connecting ring, a split type cylinder body assembly, a cap-shaped reinforcing rib and the like are manufactured in parallel and assembled to obtain the composite material storage box forming mold. The self-weight of the mold is greatly reduced while the outer molded surface of the combined mold is guaranteed, the mold filling and demolding processes are simplified, the end socket is left in the product after the product is formed, the strength and rigidity of the storage box are improved, and a stable connecting port can be provided.

The invention provides a high-power high-frequency modular battery cluster charging and discharging test device, which is characterized by comprising an alternating current coordination controller connected with a middle computer and used for receiving an instruction transmitted by the middle computer and distributing current to a plurality of isolated ACDC modules; the input ends of the plurality of isolated ACDC modules are connected in parallel and then are connected to the AC co-controller and a three-phase mains supply, and the output ends of the plurality of isolated ACDC modules are connected in parallel and then form a DC bus for converting AC into DC and realizing voltage isolation; and a plurality of BUCK-BOOST modules, the input ends of the plurality of BUCK-BOOST modules are connected in parallel and then are connected to the DC bus, and the output ends of the plurality of BUCK-BOOST modules are connected in parallel and then are connected to a target battery cluster for testing the charging and discharging of the target battery cluster. Modular design is achieved, efficient charging and discharging capacity is achieved, the defects that a traditional scheme is large in size, high in cost, slow in dynamic response and the like are overcome, equipment efficiency and flexibility are improved, and the device is suitable for a high-power scene.

The invention provides an innovative vector propulsion system of a low-altitude airship, aims to provide accurate attitude adjustment and path planning capabilities for the low-altitude airship in a complex space environment, and consists of a plurality of key components, comprising an executing mechanism, a power driving module, a vector rotating mechanism, a propeller connecting mechanism, a detecting module and a propeller control system. The core characteristic of the airship is that adjusted vector thrust can be applied to any direction in a three-dimensional space so as to respond to real-time attitude adjustment and control requirements, so that accurate vertical rising, lateral flying and rotating operation of the airship in a limited space are realized; due to the unique design, the influence of the thrust direction change on the gravity center of the airship is reduced to the maximum extent, and therefore it is ensured that the low-altitude airship keeps the stable posture, and meanwhile fine control is achieved; the system is further integrated with a set of independent control system so as to guarantee accurate output of thrust angles, meanwhile, the overall structure is light and handy, the system particularly meets the requirements of low-altitude small airships, and the maneuverability and adaptability of the system in a narrow space are enhanced.

The invention discloses a light-weight wind measurement laser radar system based on an unmanned aerial vehicle platform. The light-weight wind measurement laser radar system comprises a servo scanning unit, a radar measurement unit and a system hanging frame, the radar measurement unit adopts a lightweight main body frame, and adopts various lightweight materials in structural design; the internal space of the radar measurement unit is divided into a plurality of different subareas, the plurality of different subareas are arranged in a stacked mode, and the aspects of hardware scheme, composition, stacking mode and the like are redesigned. Hardware and a structure are deeply fused, so that the system has obvious advantages in size and weight, miniaturization and light weight are realized, and the weight index of the radar system reaches a 5-7kg level. Wherein the servo scanning unit further comprises a two-degree-of-freedom scanning servo device which enables the system to realize three-dimensional scanning in a large range, various scanning modes such as PPI, VAD and RHI are realized, and the tail end direction of the servo scanning unit is adjusted according to the current attitude information of the unmanned aerial vehicle platform while scanning is performed; and the influence caused by the attitude change of the unmanned aerial vehicle platform is compensated.

The invention relates to a vehicle power supply system, a control method of the vehicle power supply system and a vehicle. In the vehicle power supply system, a first DCDC conversion module is electrically connected with a power battery system through a first switch unit; the second DCDC conversion module is electrically connected with the power battery system; the first switch unit is a normally closed switch; the first DCDC conversion module is also electrically connected with the second switch unit; the rated power of the first DCDC conversion module is smaller than that of the second DCDC conversion module; the first DCDC conversion module and the second DCDC conversion module are both used for converting high voltage provided by the power battery system into low voltage. The first DCDC conversion module provided by the embodiment of the invention is relatively small in structure and relatively low in cost, and the first DCDC conversion module is arranged in the whole vehicle, so that the weight and the cost of the vehicle can be reduced, and miniaturization of the vehicle is facilitated.

The invention belongs to the technical field of spacer installation, and particularly relates to a light four-split spacer installation robot and a using method thereof.The robot comprises a flying frame, a flying mechanism, a spacer installation device and a spacer fixing device, the flying mechanism is arranged at the top of the flying frame, and the spacer installation device comprises a swing arm and a chuck pressing device; the spacer fixing device comprises rotating tables, spacer clamps and swing arms, the rotating tables are arranged at the bottom of the flying frame in a sliding mode in the first direction, the swing arms are connected with the chuck pressing devices, the table tops of the rotating tables are arranged perpendicular to the first direction, and the spacer clamps are arranged on the table tops of the rotating tables. According to the invention, on-line installation and installation of the four-split spacer can be completed through self posture adjustment and sliding motion of the spacer installation device and the spacer fixing device, the risk of manual high-altitude operation is avoided, the framework is compact, and the integration degree is high.

The utility model relates to a cold-formed thin-walled steel fabricated structural system, and belongs to the technical field of structural engineering. Comprising combined joints, module main beams, module columns and module secondary beams. Column sleeves are arranged at the upper end and the lower end of the combined joint, a center joint is arranged between the column sleeves, horizontal partition plates are welded between the column sleeves and the center joint, a vertical end plate is welded to each side of the outer surface of the center joint, materials such as concrete can be poured into columns, and the bearing capacity and integrity of the combined joint are improved. The connecting sleeve has the beneficial effects and advantages that the connecting sleeve is small in size, light in weight and convenient to transport and hoist, the machining time is greatly shortened, the machining quality is guaranteed, modular design, factory production and specialized installation are integrally achieved through standardized modular production of components and the connecting sleeve, field assembly is simple and efficient, and the production efficiency is improved. The purposes of reducing labor, shortening the construction period and saving cost are achieved, and industrialization development of the fabricated building is promoted.