78results about How to "Non-interference" patented technology

The embodiment of the invention provides a two-dimensional code application method and device. The method mainly comprises the steps that cleartext information is encoded to obtain a two-dimensional code cleartext portion, and ciphertext information is encoded to obtain a two-dimensional code ciphertext portion; the two-dimensional code cleartext portion and the two-dimensional code ciphertext portion are constructed according to a set information combination mode to form two-dimensional codes; the two-dimensional codes are scanned and recognized, the two-dimensional code cleartext portion and the two-dimensional code ciphertext portion are obtained, the two-dimensional code cleartext portion is decoded to obtain cleartext information, and the two-dimensional code ciphertext portion is decoded and decrypted to obtain original text information corresponding to ciphertext information. According to the method and device, the aim that cleartext and ciphertext in the two-dimensional codes do not interfere with each other and each achieve special functions of their own is realized. General two-dimensional code reading equipment can be used for reading the cleartext information, and dedicated two-dimensional code reading equipment can be used for reading the cleartext information and the ciphertext information. Safety of two-dimensional code application is effectively improved, and the application scenes of two-dimensional codes are enriched.

The invention discloses a power battery pack active air cooling heat radiating system for a vehicle, which is to realize that the heat radiating system changes with different states of a power battery in real time and the risk of over-high temperature of the battery pack is greatly reduced. The power battery pack active air cooling heat radiating system for the vehicle comprises a passenger compartment air conditioning system, a power battery pack cooling pipeline, an air duct system and a control system, wherein the power battery pack cooling pipeline comprises a No. 2 solenoid valve, a No. 2 electronic expansion valve, a No. 2 evaporator, a No. 2 evaporating pressure regulating valve and a No. 2 one-way valve, which are connected between an outlet of a condenser and an inlet of a liquid storage tank in sequence to form cooling liquid circulation outside the passenger compartment air conditioning system. An inlet of the air duct system is respectively connected with the No. 2 evaporator and an interior passenger compartment; an outlet of the air duct system is connected with a power battery box; and the control system comprises a battery management system, an air conditioning control unit and a heat radiating system control unit, which communicate with a vehicle control unit through CAN buses. The invention further discloses a control method for the power battery pack active air cooling heat radiating system for the vehicle.

The invention relates to the field of overpass designing and discloses an invention scheme of an improved clover leaf overpass, thoroughly solving the problem of travelling crane weaving between confluence points of four left turn ramps of the clover leaf overpass and the travelling crane collision problem on a side road. The improved clover leaf overpass is characterized in that the tail end of each ring-shaped ramp of the traditional clover leaf overpass continuously extends to form a segment of extended ramp; the front segment of the extended ramp is parallel to a target main line, crossesupwards or traverses downwards to move away the main line; and the rear segment of the extended ramp bends outwards relative to the target main line, and crosses upwards or traverses downwards the other ring-shaped ramp and then is connected with a right turn ramp R with the same target main line. Through the guidance of the extended ramp, a left turn vehicle does not move to the main line at once after passing through the ring-shaped ramp, moves ahead along the direction of the target main line, bypasses a distance slantly outwards, crosses upwards and traverses downwards to move out from the target main line, and moves into the target main line through a right turn lane, thus avoiding the left turn vehicle firstly moving at right and the left turn vehicle secondly moving at right on thesame main line from weaving.

The invention discloses a polarization-unrelated coherent light access method and system, and relates to the field of the optical access network in an optical fiber communication system. The method comprises the following steps: an optical line terminal OLT preprocesses an original signal, and realizes single side band modulation by utilizing a single-polarization IQ modulator; two sections of optical fiber polarization delay lines divide a single-polarization signal into two paths of dual-polarization signals unrelated to each other, and a downlink optical signal is sent after two paths of dual-polarization signals are combined; an optical network unit ONU mixes the downlink optical signal and the optical carrier, and performs the receiving through a photoelectric detector; an informationsignal and a 0 signal are of an interleaving structure in a time domain frame after preprocessing the original signal; the length difference between two sections of optical fiber polarization delay lines is corresponding to the length of the information signal or the 0 signal in the interleaving structure. The uplink-downlink symmetric and polarization-unrelated optical access network architecture is realized, the realization is simple, and the cost is low.

The invention belongs to the field of painting devices of enamelled wires, and particularly relates to a copper wire painting device for a horizontal high-speed enamelling machine. The copper wire painting device is provided with painting molds and a paint supplying device. The painting molds are used for carrying out multi-channel painting on each row wire, and the paint supplying device supplies paint liquid to the painting molds. The painting molds are horizontally arranged in parallel in the axial direction of mold holes in the molds, and containing boxes for containing paint liquid are arranged on wire inlets of the painting molds at the first painting working procedure and the last painting working procedure, each containing box is provided with a wire inlet end and a wire outlet end, copper wires to be painted pass through the wire inlet end and the wire outlet end of each containing box, the arrangement positions of the wire inlet end and the wire outlet end of each containing box are lower than the maximum containing height position of the paint liquid in the corresponding containing box, and the wire inlet end and the wire outlet end of each containing box are coaxial with the wire inlet of the corresponding painting mold. Due to the fact that the containing boxes are used as preparation painting units of the copper wires, painting stability of the enamelled wires at the painting technological position is effectively ensured, and the good film painting and coating effects of the enamelled wires are ensured.

The invention discloses a two-degree-of-freedom motion mechanism suitable for 10kv power distribution operation. The two-degree-of-freedom motion mechanism comprises an inner casing, a clamping mechanism, a driving mechanism, a rotating mechanism, an outer casing and a stopping mechanism. The clamping mechanism is arranged in the inner casing and comprises more than two inner rollers 1 and a pressing assembly. The inner rollers 1 are rotatably mounted on the inner wall of the inner casing. The pressing assembly is disposed above the inner rollers 1. The pressing assembly and the inner rollers1 clamp or loosen a cable in cooperation. The driving mechanism is disposed in the inner casing and drives the inner rollers 1 to rotate. The rotating mechanism is disposed on the outer wall of the inner casing. The rotating mechanism drives the outer casing to rotate around the inner casing. The stopping mechanism is disposed between the inner casing and the outer casing and is configured to restrict axial movement between the inner casing and the outer casing, and to support the outer casing to rotate around the outer casing. The two-degree-of-freedom motion mechanism suitable for 10kv powerdistribution operation has high flexibility, can facilitate the comprehensive cable detection by a detection device, and can also adapt to a variety of working environments.

The invention discloses an application processing method and device based on dual cameras. The method comprises the following steps: when acquiring a first frame by a mobile terminal, receiving a quick instruction triggered by a terminal user, wherein the first frame is obtained by calling a first camera through a first application on the mobile terminal; starting a second application on the mobile terminal corresponding to the quick instruction; displaying the first frame and a running interface of the second application synchronously in a terminal display screen; in addition, after starting the second application on the mobile terminal corresponding to the quick instruction, calling a second camera by the second application, and acquiring a second frame by the second camera; and synchronously displaying the first frame and the second frame in the terminal display screen.

A valve operating system includes: a decompression cam member (47); an exhaust gas recirculation cam member (48) that is provided on the camshaft (26), and moves between an inoperative position (F) where the exhaust tappet (27e) is released and an operative position (G) where the exhaust tappet (27e) is operated in a valve opening direction in an intake stroke of the engine (1); and a common centrifugal mechanism that is driven by the camshaft (26) to operate the decompression cam member (47) to the operative position (C) in a starting rotation region of the engine (1) and to the inoperative position (D) after the starting, and operate the exhaust gas recirculation cam member (48) to the inoperative position (F) in a low speed operation region of the engine (1) and to the operative position (G) in a high speed operation region. Thus, the valve operating system can exert both a decompression function and an exhaust gas recirculation function.

The invention discloses a full-automatic reinforcement cage welding method. The method includes the following steps of: placing reinforcement hoop rings upright between two opposite rolling support mechanisms; conveying main reinforcements to a welding station through a main reinforcement feeding mechanism; welding the first main reinforcement, and the main reinforcements are attached to the multiple reinforcement hoop rings simultaneously in the welding station; welding the main reinforcements to the multiple reinforcement hoop rings through a welding manipulator; rotating a roller of a roller drive mechanism so as to drive the reinforcement hoop rings to rotate by friction, then rotating the next welding point of the reinforcement hoop rings to the welding station, and welding the secondmain reinforcement; repeating the above operation to directly complete the welding of the main reinforcements; and starting a winding reinforcement feeding device, and spirally welding winding reinforcements to the outer surface of a reinforcement cage in cooperation with the a welding manipulator to complete the welding operation of the reinforcement cage. Through the welding method, full-automatic welding operation can be achieved without manual participation, the automation degree is high, the welding efficiency is greatly improved, and the method is applicable to mass production of reinforcement cages.

The invention provides a turnoff mechanism for sorting on two sides of a linear sorting machine, and a use method of the turnoff mechanism. The turnoff mechanism comprises a turnoff plate, a driven shifting fork, a drive shifting fork and a transmission mechanism, wherein the turnoff plate is provided with a first guide groove and a second guide groove which are mutually cross; the drive shifting fork drives the driven shifting fork to swing on the turnoff plate by the transmission mechanism, and when the drive shifting fork swings to seal a guide groove opening, at a crossing, of any one of the guide grooves, the driven shifting fork seals another guide groove opening, at the crossing, of the guide groove. Under the condition that mutual noninterference is ensured, sorting on two sides of the linear sorting machine is realized. The invention belongs to the field of sorting.

The invention provides a three-dimensional non-realistic expression generation method based on a facial motion unit. The method includes: firstly, establishing a standard three-dimensional face neutral model and a three-dimensional model basic training set corresponding to a face motion unit AU; secondly, generating an amplification training set by using a GAN network; and taking the face motion unit AU model in the three-dimensional model basic training set and the target object model as the input of the GAN network, generating the face motion unit AU model of the target object by using the GAN network, and amplifying the training set; then, analyzing the facial expression of the target object to be generated, inputting a human face two-dimensional image, analyzing the human face expression by using a neural network, and obtaining facial motion unit AU model data of the expression; and finally, according to the obtained face motion unit AU data information and the related face motionunit AU model data of the target object, performing fusion to generate a three-dimensional model of the target expression. According to the invention, expression simulation of basic expressions can berealized, and expression migration based on the AU can also be realized.

The invention provides a sewage flocculation and blow-down system and belongs to the technical field of sewage treatment. The sewage flocculation and blow-down system comprises a sewage and flocculating agent leading-in pipeline (1), a tank body (2), a bracket (3), a double-grade agitator (4), a water collection groove (5), an overflowing groove (6), a spiral umbrella-type cover body I (7), a spiral umbrella-type cover body II (8), a precipitator (9), a water quality monitoring device, a dirt collection barrel (12), a centrifuging drying machine (13) and an equipment adjusting central processor. The sewage flocculation and blow-down system can be used for realizing fixed-period automatic control blow-down so that the flocculation and blow-down system can be prevented from being frequently started and stopped and a liquid supernatant can be continuously overflowed and stored.

The invention provides a novel inner flame sunken burner and a gas stove with an oxygen supplementing function. The novel inner flame sunken burner comprises a outer ring burner cap, an inner ring burner cap, a gas separating seat and a stove head seat, and the end faces of the gas separating seat and the stove head seat are matched; the inner ring burner cap is matched with a center gas outlet ofthe gas separating seat, and the outer ring burner cap is matched with the peripheral area of the gas separating seat; the inner ring burner cap is provided with a main flame gas outlet used for ejecting a part of gas mixtures, and a steady flame slot used for ejecting the other part of the gas mixtures; and the inner ring burner cap located above the main flame gas outlet is provided with a supplementing slot for supplementing inside secondary air for inner ring main flame. The novel inner flame sunken burner provided by the invention has the advantages of inner ring flame with the oxygen supplementing function, high heat efficiency and roaring fire.

The invention discloses an engine brake executing mechanism. The mechanism comprises a brake inner cavity, a brake executing piston, an adjusting bolt, a brake piston spring and a clamp spring, wherein the brake executing piston, the adjusting bolt, the brake piston spring and the clamp spring arranged inside the brake inner cavity; one end of the adjusting bolt is connected with a locking nut, afirst clamping groove is formed in the outer wall of the other end of the adjusting bolt, a second clamping groove is formed in the inner wall of the brake executing piston, and the brake piston spring is arranged at the bottom of the brake executing piston; the inner side part of the clamp spring is located in the first clamping groove, and the outer side part of the clamp spring is fixed in thesecond clamping groove; and the brake inner cavity communicates with a brake oil way, one end of an air valve yoke arranged below the brake executing piston is connected with a first air valve, the other end of the air valve yoke sleeves a brake push rod, one end of the brake push rod is connected with a second air valve, and a valve clearance is formed between the other end of the brake push rodand the brake executing piston located right above the brake push rod. According to the mechanism, the structure is simple, the brake clearance adjusting speed is high, the brake stroke is controllable, the air valves are flexible to control, and the operation is simple and convenient.

The invention discloses an auxiliary driving device for an automatic transmission vehicle, belonging to the technical field of auxiliary driving devices for vehicles. The auxiliary driving device for the automatic transmission vehicle comprises a support component, a transmission component, an auxiliary driving component and a pedal component, wherein the support component comprises a connecting plate, a handle seat and supports; the transmission component comprises a rocker, a gear, a gear sector and an operating handle; the auxiliary driving component comprises a crank, sleeves, loop bars and universal spherical hinges I and II capable of rotating 360 degrees; and the pedal component comprises a brake pedal, an accelerator pedal and a connecting shaft. The operating handle is used for driving the rocker, and the gear is driven by the gear sector so as to drive the crank to rotate, thereby realizing separation and combination of the sleeves and the loop bars at left and right sides so as to achieve braking and accelerating effects. The auxiliary driving device disclosed by the invention is simple in structure and convenient in connection, and the braking or accelerating effect can be better controlled through the operating handle and is more similar to the braking or accelerating effect controlled by both feet.

The invention relates to a cross shaft type electric transmission track-laying vehicle differential traveling device driven by two motors and belongs to the technical field of engineering machinery. The device comprises a driving motor, a steering motor, a two-way clutch, a one-way clutch, a main transmission mechanism, a differential mechanism and two power coupling mechanisms. Bevel gears of themain transmission mechanism and the differential mechanism are all double-curved-surface bevel gears, driving bevel gears are identical in offset direction and concentric, the driving motor is connected with a main transmission shaft through the one-way clutch, and the steering motor is connected with the main transmission shaft and the driving bevel gear of the differential mechanism through thetwo-way clutch. The steering motor and the driving motor are controlled by the two-way clutch to drive a track-laying vehicle at the same time for linear traveling, pivot steering or steering traveling. Both the driving motor and the steering motor adopt frequency-variable control technology, so that turning radius and power distribution of the track-laying vehicle are controlled accurately. Thedevice is simple in structure, reasonable in arrangement, few in parts, stable in transmission, high in transmission efficiency and simple to control.

The invention discloses a wavelength division multiplexing-based visible light positioning communication method and system. According to the method and system, LED illuminatinglight strips with red lamp beads and blue lamp beads are arranged in a rectangular indoor space, a photoelectric detector with a red light filter, a photoelectric detector with a blue light filter and a mobile platform internally provided with mobile platform control are placed in the rectangular indoor space, and a wavelength division multiplexing technology is adopted, so that indoor environmental positioning is completed and unidirectional communication is realized; visible light frequency band pulse modulation signals are adopted and electromagnetic infection is not generated, so that benefits are brought to keepfavorable electromagnetic compatibility, thereby realizing positioning and effectively feeding electricity to various terminal devices through extracting the energy in received signals; and the fourLED illuminatinglight strips have the same average light intensity and belong to strip-shaped distributed light sources so as to easily realize the uniform illumination for large-area spaces, and theflicker frequency is far higher than the human eye perception range (above 1 kHZ) so that the positioning and communication functions do not influence the illumination quality.

The coaxial multi-output steering engine comprises a first driving speed reducing mechanism and at least one second driving speed reducing mechanism, wherein the first driving speed reducing mechanism is in transmission connection with a first output shaft, the second driving speed reducing mechanism is in transmission connection with a transmission shaft, the transmission shaft is in transmission connection with a second output shaft, the second output shaft and the first output shaft are coaxially arranged; a control panel which is electrically connected with the first driving speed reducing mechanism and the second driving speed reducing mechanism; a first feedback assembly which is electrically connected with the control panel and used for obtaining rotation information of the first output shaft; a second feedback assembly which is electrically connected with the control panel and used for obtaining rotation information of the second output shaft; the first feedback assembly is totally or partially arranged on the first output shaft; the second feedback assembly is totally or partially installed on the transmission shaft. According to the steering engine, coaxial multi-output can be achieved, and accurate position control can be achieved.

The invention relates to an architecture of a self-service terminal. The self-service terminal comprises a business function layer, a terminal driving layer, a system monitoring layer, an automatic updating layer and a strategy control layer. The business function layer comprises a terminal business function thread and a business function subsystem; the terminal driving layer comprises a terminaldriving thread and a terminal driving subsystem; the system monitoring layer comprises a system monitoring thread and a system monitoring subsystem; the automatic updating layer comprises an automaticupdating thread and an automatic updating subsystem; the strategy control layer comprises a terminal strategy control thread and a terminal strategy control subsystem. Through the architecture of theself-service terminal including the business function layer, the terminal driving layer, the system monitoring layer, the automatic updating layer and the strategy control layer, the multi-core operation characteristics of a CPU can be better utilized, the hierarchical governance of a self-service terminal system is achieved, and the running efficiency of the self-service terminal is improved; meanwhile, the dependency between various parts of the terminal is reduced, it is achieved that terminal functions do not interfere with each other, and part communication decoupling of the self-serviceterminal is achieved.

The invention relates to a double-layer refractory coating used for a centrifugal casting process metal die. The double-layer refractory coating used for the centrifugal casting process metal die is characterized by comprising a bottom-layer refractory coating body and a surface-layer refractory coating body; the bottom-layer refractory coating body comprises, by mass, 40%-50% of graphite powder, 9%-11% of a binder and 50%-40% of water; and the surface-layer refractory coating body comprises, by mass, 40%-50% of mullite powder, 9%-11% of a binder and 50%-40% of water. According to the double-layer refractory coating used for the centrifugal casting process metal die, the metal die coating used in the centrifugal casting process is studied, and the graphite refractory coating preparation method and the mullite refractory coating preparation method are adopted, so that not only is the problem that the two coating bodies are bonded with each other solved, but also mutual noninterference of the two coating bodies is ensured; functionally, the advantage that casting demolding is easy through the graphite refractory coating body and the advantage that the casting surface quality is ensured through the mullite refractory coating body are combined; a casting produced by centrifugal casting by using the metal die sprayed with the double-layer composite coating is easier to demold, and surface pores are decreased; and accordingly, the service life of the metal die is prolonged, and the production efficiency is improved.

The invention relates to a controllable double-protection fall lift spring safety valve and a boiler steam-water system. The controllable double-protection fall lift spring safety valve comprises a valve body and a valve rod. A valve seat is arranged on the lower portion of an inner cavity of the valve body. A guide sleeve is arranged at the opening of the top of the inner cavity of the valve body. The lower portion of the valve rod penetrates in the guide sleeve, and the bottom end of the valve rod is in linkage connection with a valve clack capable of being in seal fit with the valve seat. An exhaust opening is transversely formed in the position, corresponding to the top of the valve seat, of the valve body. An upper spring seat and a lower spring seat are arranged on the upper portion of the valve rod. A spring is connected between the upper spring seat and the lower spring seat. The valve rod penetrates through the spring. The upper portion of the valve rod is sleeved with a shifting fork. The shifting fork is in linkage connection with a movement device through a connection device. The movement device is electrically connected with a pressure sensing device. An electromagnet is adopted by the controllable double-protection fall lift spring safety valve, the shifting fork is lifted through electromagnetic force, the valve rod is driven to be lifted, and the valve is driven to be opened for discharging.

The invention discloses an energy-carried positioning method in a plane environment. The method comprises the following steps: setting up horizontal and vertical LED lighting strips, a mobile platformand a solar energy epoxy panel in a rectangular room; the solar energy epoxy panel detecting the light intensity and the flicker signals from four LED lighting strips; sending part of the signals output from the solar energy epoxy panel directly to a storage module for storage; sending part of the signals output from the solar energy epoxy panel to four band-pass filters that match the flicker frequency of the respective LED lighting strips to extract the harmonic components of the signals output from the solar energy epoxy panel, which match the flicker frequency of the four LED lighting lights, and then transmitting the harmonic components to a positioning controller; and the positioning controller determining the horizontal position and the vertical position of the mobile platform in the indoor space according to the relative relationship between the solar energy epoxy panel and the amplitude of the harmonic components matching the flicker frequency of the LED lighting lights. Thehorizontal and the vertical positions are combined to achieve the planar position sensing, self-positioning and electrical energy storage of the indoor mobile platform in an indoor environment.

The invention discloses a wire winding device and a leading wire drying system. The wire winding device comprises a mounting rack, driving shafts, driving assemblies, embossing printing wheels, wire winding shafts, rotary rings and driven shafts, wherein the driving shafts are rotatably connected with the mounting rack; the driving assemblies are used for driving the driving shafts to rotate; theembossing printing wheels are arranged around the driving shafts; the wire winding shafts are rotatably connected with the mounting rack; the rotary rings are arranged around the wire winding shafts;the first ends of the two adjacent rotary rings clamp one embossing printing wheel; the driven shafts are rotatably connected with the mounting shaft; the driven shafts abut against the second ends ofthe corresponding rotary rings; the number of the driving shafts, the number of the driving assemblies, the number of the wire winding shafts and the number of the driven shafts are equal. The wire winding shafts of the wire winding device provided by the invention rotate to conduct wire winding without mutual interference. The fault resistance of the wire winding device is high.

The invention provides an automatic feeder for a laser engraving machine. The automatic feeder comprises a vibrating tray, a supply unit, a feed unit, a jig and a discharge unit arranged in sequence;the supply unit comprises a first guide part and a linear vibrator, and the first guide part is provided with a plurality of first guide grooves which specify a linear motion track for materials; thefeed unit comprises a first air nozzle, a second guide part, and pressing heads capable of moving up and down, the second guide part is provided with second guide grooves connected to the first guidegrooves, the pressing heads can get into and out of the second guide grooves, the first air nozzle faces toward the first guide grooves, and has a blowing direction deflected to a feed direction; thejig is provided with third guide grooves connected to the second guide grooves; the discharge unit comprises a second air nozzle and a blocking plate capable of moving up and down, the second air nozzle faces toward the second guide grooves, and has a blowing direction deflected to a discharge direction. The automatic feeder for the laser engraving machine, disclosed by the invention, can carry out automatic feeding, increasing the efficiency of production, reducing manpower, and greatly reducing production cost.

A method for preparing polyurethane foam concrete comprises a step 1 of preparing polyurethane aggregate; sequentially adding water, polyurethane black materials and polyurethane white materials into cement, performing stirring evenly while performing the adding, and standing to obtain the polyurethane aggregate; a step 2 of preparing cement slurry; adding the cement and the water into a container in proportion, and performing stirring evenly; a step 3 of preparing the polyurethane foam concrete; adding the polyurethane aggregate obtained in the step 1 into the cement slurry obtained in the step 2, and then sequentially adding a foam stabilizer and a foaming agent to make the polyurethane foam concrete. According to the method, the technical problems that conventional foam concrete is high in thermal conductivity and contractibility, cracks easily and is large in volume weight are solved, and the technical problems that a conventional polyurethane foam heat insulation material is low in intensity and not resistant to fire are also solved.

The invention discloses multi-station data line connector detection equipment for intelligent manufacturing, and relates to the technical field of intelligent manufacturing, in particular to a detection rack and firmness detection mechanisms, the top of the detection rack is rotatably connected with a rotating shaft, and the firmness detection mechanisms are distributed on the surface of the rotating shaft at equal intervals, the bottom of the adjusting motor is rotatably connected with an analog interface, a winding box is fixed to the side face of the bottom of the synchronous rod, the output end of the winding motor penetrates through the interior of the winding box and is connected with a winding disc at the same time, a balance weight piece is fixed to the outer end of the line body, and a data line body is connected into the analog interface in a clamped mode. According to the multi-station data line connector detection equipment for intelligent manufacturing, appearance detection of connectors of a plurality of data line bodies, firmness detection after the connectors are connected with ports and crack detection of joints of the connectors and connecting parts are completed at the same time, and the data line bodies do not interfere with one another during synchronous detection, therefore, the detection efficiency of the data line body is improved.

The invention relates to a plastic high-fidelity combinedloudspeaker box. The combined loudspeaker box comprises a box body, a subwoofer and a partition plate. The box body is provided with a plurality of reinforcing ribs and the box body is a cuboid box body. It also includes an invertertube, a mid-range speaker and a tweeter. The box body is formed by fixing a front cover on a rear cover from the front. The front cover and the rear cover are all injection molded as one piece. The partition plate is arranged in the middle part of the box body to form an upper sound cavity and a lower sound cavity, so that the combined sound box is divided into an upper part of the sound box and a lower part of the sound box by the partition plate. The tweeter and the mid-range loudspeaker are located in that upper cavity. A subwoofer and invert tube are located in that lower cavity. The combined loudspeaker box of the invention is small in volume and is made of plastic instead of wood. The upper soundcavity and the lower sound cavity are separated by a partition plate and are not communicated with each other, and the lower sound cavity is an independent bass cavity, so as to realize the independence of the bass audio and ensure the sound quality of the loudspeaker.