264results about How to "Convenience guaranteed" patented technology

The invention discloses a hydroelectric generating set parameter dynamic multi-objective optimization method and system oriented to variable working conditions. The method comprises the following steps: establishing a nonlinear simulation model; establishing a multi-dimensional performance evaluation system; constructing an off-line / on-line fusion optimization system architecture; for each new working condition point, generating a high-quality initial population based on the Pareto solution set of the nearest neighbor optimized working condition point; solving a Pareto optimal solution set of the working condition points; performing incremental training on the machine learning model to form an offline knowledge base; real-time working condition data are collected in a fixed period, and future water head and power are predicted; based on a prediction result, adopting a dual warm start mechanism to solve a dynamic multi-objective optimization problem at the current moment and the future moment in parallel; and monitoring a consistency index between the online optimization solution set and the prediction solution set in real time, and triggering incremental updating of the model when the index continuously exceeds the limit. According to the method, all-working-condition continuous self-adaptive optimization and prospective regulation and control of the hydroelectric generating set can be realized.

The invention provides a power distribution network partition optimization method and system. The method comprises the steps that a non-inductive load characteristic index set is constructed, non-inductive load characteristic indexes are constructed into characteristic vectors, electrical attributes of a power supply unit are constructed into attribute vectors, and then a two-dimensional evaluation model is constructed; obtaining a plurality of candidate partitions based on electrical attributes of the power supply units, calculating a comprehensive evaluation value of each load point and each power supply unit through a two-dimensional evaluation model, distributing each load point to the candidate partitions meeting a preset partition requirement through the comprehensive evaluation value, obtaining a preliminary partition scheme, constructing a global optimization model, and obtaining a final partition scheme; and optimizing each candidate partition to obtain a preliminary partition optimization scheme, constructing a corresponding power flow balance equation, and locally adjusting the preliminary partition optimization scheme to obtain a power distribution network partition optimization scheme so as to optimize the power distribution network partition. According to the invention, multi-dimensional evaluation is carried out on the power distribution network to optimize the reasonability of load division of the power distribution network, so that the operation reliability of the power grid is improved.

The utility model provides a kind of headrest with cosmetic mirror, car seat and vehicle, it is related to the technical field of automobile parts, the headrest includes headrest body, cosmetic mirror subassembly, damping device and limiting device, and headrest body rear side is equipped with accommodating cavity;Cosmetic mirror subassembly is reversibly set in accommodating cavity by pivot, including triangular installation body and cosmetic mirror, installation body has adjacent first surface and second surface, first surface fixed cosmetic mirror, and second surface is the decorative surface consistent with the curvature of headrest rear side outer surface.Cosmetic mirror subassembly can be switched between the use state that cosmetic mirror is exposed and flush with headrest and the storage state that decorative surface is exposed and flush with headrest.The design realizes the balance of hidden storage and convenient use of cosmetic mirror, flush with headrest surface when storage, stable adhesion without space when use, solve the problem that traditional cosmetic mirror is complicated to operate and occupies space, improve practicality and aesthetic property, especially suitable for rear passenger use.

The application belongs to the field of workshop scheduling, and particularly discloses a semiconductor wafer probe test scheduling method and system based on an improved genetic algorithm, which adopts double-layer process-machine coding, and combines auxiliary resource taboo coding as an individual, effectively converts a complex scheduling problem into a coding form through an innovative coding and decoding strategy, and avoids traversal search on all selectable auxiliary resources; global-local hybrid search is carried out through the improved genetic algorithm, on the basis of machine level exchange with the traditional critical path-key block, search on the auxiliary resource immediately preceding work is increased, and neighborhood exploration is carried out based on a load balancing strategy, so that the search efficiency and solution quality are improved. The application can quickly and efficiently solve the semiconductor wafer probe test scheduling scheme, effectively improve the equipment utilization, speed up the scheduling efficiency, and break through the bottleneck of traditional scheduling.

The utility model discloses a cooling device for an end winding of a generator, which relates to the technical field of electrics and comprises a generator body, an inner cover support plate is fixedly mounted on the surface of the generator body, an end cover body is slidably mounted on the surface of the inner cover support plate, and a butt joint support groove is formed in the surface of the inner cover support plate. According to the cooling device for the end winding of the generator, the first guide plate pushes the second guide rod to slide from the inner side of the butt joint support plate to the inner wall of the positioning support groove, so that butt joint installation of the end cover body and the inner cover support plate is achieved; by means of the mode, the convenience of butt joint combination between the end cover body and the inner cover supporting plate is guaranteed, meanwhile, the convenience of disassembly maintenance and cleaning operation when the generator body works for a certain period of time is guaranteed, and the defects that a traditional generator body and an end cover body are located through bolts, rusting is easily caused, and separation operation is not convenient are overcome.

The application relates to a motor rotor and a permanent magnet brushless motor with the rotor, which comprises a rotor core and a magnetic steel, the rotor core comprises a first rotor lamination and a second rotor lamination, the first rotor lamination is externally provided with a protruding part, the second rotor lamination is externally provided with a groove part, the magnetic steel is fixed between the protruding parts of the first rotor lamination and simultaneously fixed between the groove parts of the second rotor lamination; the first rotor lamination is arranged at the front part, the rear part or the front and rear parts of the second rotor lamination. Compared with the prior art, the application has the advantages of reducing the magnetic flux leakage of the motor as much as possible under the condition of ensuring the unchanged motor output.

The utility model belongs to the technical field of leather products, and particularly relates to a cow leather summer sleeping mat sleeved on the outer side of a mattress, which comprises a body and a fixing part, the edge of the summer sleeping mat body is connected with the mattress through a covered edge and a locking structure by means of the structural innovation of the fixing part on the periphery of the summer sleeping mat body, so that the summer sleeping mat can be stably attached to a bed surface. And the displacement phenomenon generated in the using process can be effectively prevented. The unique fixing mechanism ensures the convenience of installation, and also meets the requirement of dismounting at any time. Meanwhile, in material selection and process design, high-quality first-layer cowhide is selected as a basic material, the material has good softness and skin-friendly performance, the touch comfort of a user is further improved, it is guaranteed that the user does not feel oppressed or uncomfortable even if lying on the mattress for a long time, and the overall sleep quality is improved; and a better sleep solution is provided for consumers.

The utility model provides a kind of convenient mooring structure suitable for water level change, including the mooring bitt fixed on the top of dike, mooring bitt is used to connect first section steel wire rope, the tail end of first section steel wire rope connects metal ring, metal ring is simultaneously connected with intermediate segmented steel wire rope, another end of intermediate segmented steel wire rope is alternately connected with multiple intermediate segmented steel wire ropes by metal ring;When mooring, the ship cable bitt of ship is selectively connected with metal ring by mooring rope, to adapt to water level change.This structure can well adapt to water level change, and then ensure that ship can be conveniently and reliably realized mooring under different water levels, and then ensure the safety and convenience of mooring.

This utility model discloses a steel ball transfer bucket, belonging to the technical field of grinding equipment. It includes a bucket body, a central shaft, a discharge disc, a central shaft support, a central shaft fixing ring, and a locking cone. The central shaft is located in the middle of the bucket body, and a central shaft fixing ring is fitted onto the central shaft. Several central shaft supports are spaced apart around the central shaft fixing ring. A discharge disc is located at the lower end of the central shaft. An external thread is formed on the outer surface of the central shaft, and a locking cone is located at the position of the external thread. This design effectively prevents leakage during transfer and eliminates the need for personnel to approach or open the gate during ball unloading, ensuring safe and convenient ball unloading. It also effectively prevents the risk of residual steel balls inside the transfer bucket being instantly discharged during recycling, thus protecting worker safety.

The utility model provides an aluminum alloy part oxidation device, belongs to the technical field of material surface treatment, and aims to solve the problem that the oxidation effect of an aluminum alloy part is influenced by non-uniform electrolyte caused by effective component sedimentation due to long-time standing of the electrolyte of the conventional aluminum alloy part oxidation device in the anodic oxidation process. The electrolyte box is of a rectangular box-shaped structure; the gear set shell is fixedly arranged at the upper end of the front end surface of the electrolyte box; the reciprocating driving motor is fixedly arranged on the left end face of the gear set shell; the spring limiting blocks are arranged on the upper end surfaces of the two cross beams of the pendant bracket; the reciprocating rotating assembly is arranged in the gear set shell; and the hanging frame fixing assembly is arranged at the position of the hanging piece support. The device has the comprehensive advantages that the electrolyte components are kept stable and uniform, and the oxidation process is faster and more efficient.

This invention discloses a precision testing device for planetary roller screw pairs, including a testing platform with symmetrically mounted fixed plates on its top. A servo motor is fixedly mounted on one side of one of the fixed plates. The device also includes two sets of support rods symmetrically mounted below the two fixed plates, and a positioning assembly positioned between the two fixed plates. The positioning assembly includes two movable frames and limiting components symmetrically positioned on both sides of the two movable frames. This allows for easy switching between different sized positioning plates when dealing with different types of planetary roller screw pairs, facilitating reliable positioning of the nut or screw according to the type of planetary roller screw pair. Furthermore, after switching, when positioning a reverse planetary roller screw pair, multi-point positioning of the screw in the pair can be quickly achieved, facilitating the movement of the screw in the reverse planetary roller screw pair while preventing rotation during screw movement, thus improving testing accuracy.

The utility model discloses a fire hydrant device for fire-fighting early warning, and relates to the technical field of fire hydrants. The fire hydrant device for fire early warning comprises a fire hydrant body, a driving mechanism is arranged on the outer side of the fire hydrant body, a buffer structure is arranged on the outer side of the driving mechanism, the driving mechanism comprises a fixing frame, and an electric hydraulic push rod is fixedly installed on the inner wall of the fixing frame; a connecting rod is fixedly installed at the movable end of the electric hydraulic push rod, and a lifting frame is installed at the other end of the connecting rod. An electric hydraulic push rod on the inner side of the fixed frame can be used for controlling the lifting frame through a connecting rod to realize a height adjusting function, so that the total height of the fixed frame and the lifting frame is flexibly adjusted according to the actual use requirement and the idle state of the fire hydrant main body, and the use convenience of the fire hydrant is ensured; and meanwhile, safety protection in a non-use state is also guaranteed, so that an all-around protection effect is achieved.

The utility model discloses a fast locking adjustable building measuring scale, and specifically relates to the measuring scale technology field, the fast locking adjustable building measuring scale comprises a first scale body, one side of the first scale body is fixedly provided with a connecting column, the surface of the connecting column is sleeved with a second scale body, two ends of the connecting column are fixedly provided with limiting discs, and one side of the second scale body is provided with a locking mechanism. The locking mechanism comprises an L-shaped fixing block fixedly arranged on one side of the second ruler body, a sliding groove is formed in the L-shaped fixing block, a cross-shaped sliding block is arranged in the sliding groove in a sliding mode, a fixing plate is fixedly arranged at the bottom of the cross-shaped sliding block, and a limiting rod is fixedly arranged in the fixing plate. According to the utility model, the angle between the first ruler body and the second ruler body can be flexibly adjusted to adapt to different measurement scenes, unlocking and locking can be rapidly realized, the angle stability during measurement is ensured, and the practicability and reliability of the measuring ruler in the aspect of length adjustment are enhanced.

The utility model relates to the technical field of building construction, and discloses a portable crane for building construction, which comprises a lifting frame and a lifting device fixedly mounted on the upper side of the lifting frame, two bottom plates are arranged on the lower side of the lifting frame, and two first guide grooves are formed in the lower surface of the lifting frame. A second guide groove is formed in the upper surface of the bottom plate, through cooperation of a bidirectional threaded rod, a first connecting base, a second connecting base, a first lifting plate, a second lifting plate and other structures, pulleys can be stored into the grooves in the lifting process of the lifting frame, and when the lifting frame descends, the pulleys extend out of the grooves, so that the pulleys are prevented from falling into the grooves. Therefore, the operation steps of workers are reduced, the overall stability of the device is guaranteed during use, the moving convenience of the device is guaranteed during rotation, the practicability is high, and the flexibility is high.

This utility model discloses a fiberglass electrical box, relating to the field of electrical box technology. It includes a box body and a connection port inside the box body. An outer door is rotatably mounted on the front end of the box body, and reinforcing ribs are provided inside the box body. An installation component is fixedly mounted on the lower end of the box body, and a positioning screw is provided inside the outer door. An adjustment structure for controlling the state of the wires is provided inside the box body. This fiberglass electrical box can limit and restrain the wires inside, preventing tangling and ensuring ease of use. The double-door structure at the front end of the box body improves security. Using fiberglass as the main material ensures the box body's insulation and corrosion resistance, while also maintaining its lightweight nature, ensuring the stability of the electrical equipment inside the box, and improving the safety of its use.

The invention discloses a guide plate and a chain saw, relates to the technical field of chain saws, and aims to solve the problems of non-uniform distribution of lubricating oil and waste of the lubricating oil. The guide plate comprises an inner plate and two outer plates. The inner plate and the outer plate define a lubricating flow channel network, and the lubricating flow channel network comprises a main oil channel, a plurality of branch oil channels communicated with the main oil channel and a head oil outlet hole; the head oil outlet hole is used for allowing lubricating oil in the main oil duct to flow to the head area of the guide plate, and the multiple branch oil ducts extend to the guide plate groove and form multiple side oil outlets. A first oil inlet and a second oil inlet which are communicated with the main oil duct are formed in the tail part of the guide plate; the first oil inlet and the second oil inlet are both communicated with the main oil duct; a first groove hole capable of being matched with the axial moving tensioning pin is formed in the tail of the guide plate, and when the tensioning pin moves forwards to the working position, a rod body of the tensioning pin abuts against and blocks the second oil inlet. The guide plate and the chain saw provided by the invention are used for ensuring uniform distribution of lubricating oil and reducing escape of the lubricating oil, so that the lubricating oil is saved and the lubricating reliability is improved.

The utility model relates to the related technical field of anti-theft door production, in particular to an internal locking mechanism for anti-theft door production, which comprises a door frame, and a clamping and locking mechanism is arranged on the surface of a door body. According to the internal locking mechanism for anti-theft door production, through the arrangement of the clamping lock mechanism, after a door body and a door frame are closed firstly, a door lock is in a locked state, then a rotating block is rotated, one end of the rotating block penetrates through a connecting block to drive a ratchet wheel and a disc to rotate synchronously, one end of a pawl on the surface of a limiting rod is matched with the ratchet wheel, and springs are annularly distributed at equal intervals; when the disc rotates, a second connecting rod connected with the surface of the disc drives the adjusting rod to move, one end of the second connecting rod penetrates through the adjusting rod and transmits the movement to a lock column connected with the first connecting rod, and one end of the lock column is embedded in the limiting hole and moves along the limiting hole in a guiding mode. Locking is completed until the end with the matched size is embedded into the first clamping groove in the surface of the door frame.

According to the spraying dust removal device capable of leveling the land and used for the construction site, a first leveling mechanism and a second leveling mechanism are arranged, the ground is pressed through a pressing roller ring at the tail of a vehicle plate, vibration pressing boxes compact the two sides of the vehicle plate under the action of a vibration motor, and due to the fact that the two ends of the pressing roller ring and the two vibration pressing boxes are staggered in the range, the two sides of the vehicle plate are tightly pressed; therefore, the road surface can be fully leveled, dust in the air is mixed with water and falls on the ground under the action of the fog gun machine in the reciprocating motion process of the tricycle main body, the purpose of road leveling is achieved through the pressing and compacting action of the pressing roller ring and the vibration box, and the problems that an existing fog gun machine can only carry out dust falling treatment on raised dust, and the road surface cannot be leveled easily are effectively solved. The problems that the road cannot be leveled, dust on the road can be raised repeatedly when the engineering vehicle runs, and dust raising cannot be restrained are solved.

The utility model provides a kind of photo-assisted electrochemical oxidation photoelectric coupling experimental device, belong to water treatment advanced oxidation experimental research technical field.The device core includes photochemical reactor and electrochemical reactor.Electrochemical reactor is used for electrode material performance test or for electrolysis to produce oxidant.Photochemical reactor is made of cylindrical high boron silicon material, light source is placed in quartz sleeve to isolate electrolyte and is fixed in the center of reactor, for light source performance test or for photolysis to generate active substance.Electrochemical reactor and photochemical reactor are connected by an adjustable circulating pump of flow rate and realize electrolyte exchange.The experimental device is designed for the lack of photoelectric coupling research device currently, by changing electrode material, light source, experimental parameter, the effect, kinetics and key influencing factor of key components and reaction condition on photo-assisted electrochemical oxidation advanced oxidation technology degradation pollutant are researched.

The utility model relates to valve technical field especially is a kind of valve mounting structure with positioning function, including valve main body, flange mechanism is arranged on the valve main body and is used for installing positioning, flange mechanism includes: positioning assembly is fixed in the flange seat of the import and export end of valve main body, annular plate is rotatably installed in the inside of flange seat, the extension ear is fixed on the outer wall upper end of annular plate, the inside of annular plate is opened and is equipped with several arc grooves of circumferential distribution, the slider is slidably installed in the inside of arc groove, the flange plate is fixed in the outside of flange seat, the inside of flange plate is opened and is equipped with several circumferential distribution sliding slot, the sliding strip is slidably installed in the inside of sliding slot, and the sliding strip inner end is rotatably connected with slider, and the sliding strip outer end is fixed with bolt head;By automatic control bolt head radial adjustment, it can adapt to the flange connecting surface of different specifications within certain range, realizes fast accurate alignment with pipeline flange, improves installation efficiency.

The utility model discloses a ceramic marmite processing and placing platform which is characterized in that a plurality of concave processing blocks are welded at the top end and the bottom end of a fixed supporting plate, combined limiting blocks are clamped on the inner sides of the concave processing blocks through combined pins, and combined limiting holes are symmetrically formed in one ends of the concave processing blocks and one ends of the combined limiting blocks; the two ends of the two fixed supporting plates are provided with combined limiting blocks, internal thread lifting cylinders are welded to one ends of the combined limiting blocks, a two-way lifting screw is connected between the two internal thread lifting cylinders through threads, and reversing inner hole blocks are welded to one ends of the internal thread lifting cylinders. The spring reset rods are matched for clamping the inner limiting fixing sleeves and the sliding limiting sleeves, so that the height of the placing platform is adjusted, the height of the equipment can be adjusted according to the marmite through rapid telescopic adjustment when the marmite is placed, and the marmite placing device is suitable for placing different marmite conveniently.

The utility model relates to shopping bag technical field, especially portable shopping bag of environmental protection of expandable, including base, and the first bag body and second bag body connected to the adjacent two sides of base, the first bag body includes first wide side, second wide side, first long side and second long side, the second bag body includes third wide side, fourth wide side, third long side and fourth long side, the two side edges of base are connected with the adjusting part of one area and base same away from the first bag body and second bag body, the side of adjacent two adjusting parts is connected with the extension of one area and base same away from base, and the fold line part of two adjusting parts is established with base, two adjusting parts are folded in base under the action of fold line part, and make extension to be in the top of base, the utility model aims at providing a kind of shopping bag, which can meet the light demand of daily commuting, can also deal with the sudden large capacity loading, and give consideration to practical and environmental protection.

This invention discloses a method for reverse material transport via a feed belt for ore powder silos across a grinding and flotation workshop. It relates to the field of feed belt technology for ore powder silos and includes a main body comprising a first conveyor belt and a second conveyor belt. The first conveyor belt is located between the bottom discharge end of the ore powder silo and the grinding and flotation workshop. A separator is installed at the end of the first conveyor belt that passes through the grinding and flotation workshop. Through the coordinated arrangement of the first conveyor belt, the second conveyor belt, and the separator, an integrated connection is achieved between the forward transport of ore powder and the reverse transport of substandard ore powder. The first conveyor belt ensures stable forward transport from the ore powder silo to the grinding and flotation workshop. The separator separates substandard ore powder from qualified material. The second conveyor belt then transports the separated substandard ore powder back to the ore powder silo. This automatic separation and reverse transport of substandard ore powder can be completed without manual intervention, avoiding production stoppages caused by the accumulation of substandard material and ensuring the convenience of ore powder allocation and reprocessing.

The utility model discloses a convenient plug -in lamp belongs to lamp technical field, including the plug -in socket, the inside electric connection of plug -in socket has a plurality of conductive elastic needle, and the inside plug -in of plug -in socket has the mounting seat, and the inside middle of mounting seat is equipped with the mounting groove, and one end of mounting seat is provided with the plastic spring piece, and the inside mounting of mounting groove has the lamp cap, and one end of mounting seat is installed with the splicing cover, and one end of splicing cover is fixed with the baffle ring, and the inside plug -in of splicing cover has the lens, and the inner wall of splicing cover is equipped with the locating groove with the plastic spring piece, the utility model discloses can select the lighting lamp, the germicidal lamp, the plant lamp, the physiotherapy lamp etc and use, improve the applicability of lamps and lanterns, guarantee the use effect, ensure that equipment can be used in wardrobe, cupboard, shoe cabinet, food display cabinet, plant lamp etc. place, improve the application range of equipment, install through the lamp cap and insert the inside mounting seat, and the splicing cover is inserted and is assembled with the mounting seat, and the lamp cap is installed and positioned conveniently.

The application belongs to the technical field of printing, and particularly relates to a printing jig design method based on ultra-thin circuit board printing technology. The application aims to solve the problems that the existing jig design is difficult to adapt to the ultra-thin circuit board, the printing precision and yield are low, the design cycle is long and the like due to the fact that the ultra-thin circuit board is extremely thin and easy to deform and warp. The method comprises the following steps: obtaining geometric and mechanical parameters of the ultra-thin circuit board; establishing an accurate deformation mechanical model of the ultra-thin circuit board under printing composite load; predicting the deformation behavior based on model simulation; optimizing the jig structure layout, support scheme and material selection according to the simulation result; and optimizing the jig design. Through the above technology, the application can effectively prevent the deformation and warping of the ultra-thin circuit board, significantly improve the printing precision and yield, shorten the design cycle, reduce the production cost, and promote large-scale and efficient production.

The utility model discloses a guide assembly for a low-voltage open cabinet drawer, which comprises a lining frame and a sliding block fixedly connected with the drawer, and the inner surface wall of the lining frame is fixedly connected with a sliding rail in sliding fit with the sliding block. According to the invention, the drawer piece is pushed to enable the sliding block to slide along the sliding rail, so that the connector on the drawer piece can be accurately connected with the socket in the cabinet body to complete the guiding of the drawer piece, and when the drawer piece is opened in a large scale, the sliding sleeve can be moved to slide along the sliding plate. The sliding sleeve and the clamping seat are fixed through the fastening rod until the clamping seat sleeves the outer side part of the sliding block to be fully loaded, and the clamping seat realizes local supporting and positioning of the sliding block, so that the weight of the drawer piece can be prevented from completely acting on a small-range area of the sliding rail, the rail is effectively prevented from deforming, and even after the drawer piece is completely combined with a cabinet body, the sliding rail is prevented from being damaged. The drawer can be stably closed by moving the clamping seat to the front side of the drawer piece.

The utility model provides a kind of radioactive contamination dynamic boundary prediction device, belong to nuclear science and technology field, to solve the detection of direct use Geiger counter, leading to the inaccuracy of the detection result of Geiger counter, influence the accuracy of radioactive contamination boundary prediction problem, including Geiger counter main part, control knob, detection holding frame, detection head, dustproof driving mechanism and operation warning mechanism;The control knob is rotationally connected above the Geiger counter main part;The detection holding frame is fixedly connected above the Geiger counter main part;The detection head is fixedly connected above the detection holding frame;The dust cover is rotationally connected at the front end of detection holding frame, and the dust cover is arranged at the front end of detection head;The dustproof driving mechanism is arranged outside the detection holding frame;The operation warning mechanism is arranged above the Geiger counter main part, standardizes the operation procedure of worker, guarantees the accuracy of radioactive contamination detection result.

This utility model discloses a paper dispensing assembly and a tissue box. The paper dispensing assembly includes a mounting base, a transmission roller group, and a paper cutting and feeding mechanism. The transmission roller group includes a first transmission roller and a second transmission roller, with the roll of paper sandwiched between the first and second transmission rollers. The paper cutting and feeding mechanism includes a switching component, a paper cutting component, and a paper feeding component. The switching component is connected to the first transmission roller, which is driveably connected to the paper cutting component. The paper cutting component can stop the first transmission roller from rotating, thus breaking the roll of paper. The first transmission roller is also driveably connected to the paper feeding component, which can actively drive the first transmission roller to rotate and output a portion of the roll of paper. This utility model's paper dispensing assembly, through the paper cutting and feeding mechanism, allows the roll of paper to be broken when dragged, enabling users to pull and break the roll of paper with just one hand. After the roll of paper is broken, the first transmission roller rotates to output a portion of the roll of paper, ensuring convenience for each paper retrieval.

This utility model discloses a prefabricated interior decorative wall panel locking device, which includes multiple vertical keels installed on the wall surface by multiple fasteners and multiple hangers installed on the decorative wall panel by tapping. Multiple strip steels are installed on the vertical keels by tapping, and a strip plate is provided on the top of each strip steel. A hook is provided on the top of each hanger to hook onto the strip plate. This utility model installs the strip steels on the multiple vertical keels as needed by tapping. The hangers are then installed on the decorative wall panel according to the position of the strip steels. The decorative wall panel is lifted so that the hook on the hanger hooks onto the strip plate on the strip steel. Then, the wedge-shaped locking strip below the hanger contacts the fixing strip, causing the deformation strip to rotate outwards until the wedge-shaped locking strip moves to the other side of the fixing strip and locks onto it. This ensures the stability of the decorative wall panel after it is hung, as the wedge-shaped surface locks it onto the hanger.