115 results about "Metal device" patented technology

The utility model belongs to the technical field of sewage treatment, and particularly relates to high-strength integrated large metal equipment for biological sewage treatment, which comprises a water inlet pipe, a water outlet pipe, sewage, activated sludge, an aeration oxygen supply device and a metal shell so as to form a pool-shaped biological sewage treatment system. A metal shell on the periphery of the pool-shaped biological sewage treatment system is composed of hollow double-layer metal composed of two layers of metal plates and a core pipe in the middle, the hollow double-layer metal is formed through hot air copper brazing of the core pipe, and an air channel and a flow channel are formed between the inner gap and the outer gap of the core pipe. The activated sludge is formed by combining an oxidation ditch and an MBR, the aeration oxygen supply device comprises a fixed rubber aeration pipe, and the metal shell is made of a stainless steel material.The device has a heat preservation measure, the sludge activity can be improved, the equipment strength is high, the overall installation efficiency of the equipment is high, rapid splicing is achieved, and the service life of the equipment is prolonged. Compared with other large-scale sewage biological treatment equipment, the cost is lower.

The invention relates to an anode carbon block provided with a conductive connection concave groove, which is mainly applied to the assembly configuration of an anode conductive device of an aluminum electrolysis cell and the production of electrolytic aluminum. In order to overcome the technical defects of high voltage drop, high assembly energy consumption, complex process and high construction cost of an anode conductive device formed by assembling an anode carbon block and an anode steel claw together by casting a ferrophosphorus ring in the prior art, the invention discloses a technical scheme of a novel construction connection mode of an anode carbon block and an anode conductive metal structure. The innovative technical scheme is characterized in that the upper part of the anode carbon block is changed into a flat-top design, and an anode conductive connection concave groove which is used for constructing and installing an anode conductive cross beam and has the section width larger than the section height is formed in the upper top part of the flat-top anode carbon block. And the anode conductive concave groove is connected with an anode conductive metal device of the aluminum electrolysis cell.

A novel aluminum electrolysis cell anode conductive metal device is formed by combining an anode aluminum guide rod, an anode conductive stand column plate and an anode conductive cross beam, that is, the upper part of the anode conductive cross beam is in conductive structure connection with the aluminum guide rod through the anode conductive stand column plate. In the production process of electrolytic aluminum, after the anode conductive cross beam is directly mounted and constructed in the anode conductive concave groove in the upper part of the anode carbon block, direct iron-carbon bonding interface conductive connection is generated between the anode conductive cross beam and the anode carbon block; therefore, the anode current of the anode large bus of the aluminum electrolysis cell is directly conducted and conveyed to the anode carbon block. In the production process of electrolytic aluminum, the anode metal conductive device disclosed by the invention can be used for canceling and replacing the production process of an anode carbon block steel claw group which is used for pouring phosphorus pig iron by using an anode steel claw in the prior art and simplifying the process flow of anode assembly; and moreover, the direct-current power consumption of the electrolytic aluminum can be greatly reduced, and energy-saving, emission-reducing and low-carbon production of the electrolytic aluminum is realized.

In some embodiments, the present application provides an integrated chip (IC). The IC includes a metal-insulator-metal (MIM) device disposed over a substrate. The MIM device includes a plurality of conductive plates that are spaced from one another. The MIM device further includes a first conductive plug structure that is electrically coupled to a first conductive plate and to a third conductive plate of the plurality of conductive plates. A first plurality of insulative segments electrically isolate a second conductive plate and a fourth conductive plate from the first conductive plug structure. The MIM device further includes a second conductive plug structure that is electrically coupled to the second conductive plate and to the fourth conductive plate of the plurality of conductive plates. A second plurality of insulative segments electrically isolate the first conductive plate and the third conductive plate from the second conductive plug structure.

The present invention belongs to the technical field of radiators, and discloses a liquid-cooled radiator and its processing technology. The processing technology of the liquid-cooled radiator includes the following steps: First, fix the metal device in the processing device for processing to produce shovel teeth, and then perform in-tooth filling to fill the shovel teeth well; make the metal device and the filling form an integral product, and then put it into CNC processing. After processing, remove the filling; adopt the in-tooth filling technology to fill the product with shovel teeth well, so that the whole product forms an integral body, and the combined strength and hardness of all the tooth pieces meet the requirements of the sheet material. Then put it into CNC processing. After processing, remove the filling. The present invention makes the whole product form an integral body, and the combined strength and hardness of all the tooth pieces meet the requirements of the sheet material. Then put it into CNC processing. After processing, remove the filling. The finished product yield reaches 99%.

The present invention discloses a robotic arm synchronous operation system and method based on a millimeter-wave radar sensor. The system includes: a metal device worn on the hand for enhancing the reflection of electromagnetic waves; a millimeter-wave radar sensor for transmitting electromagnetic waves and collecting radar data of the hand; and a host computer for performing intra-frame data processing and inter-frame data processing on the collected radar data to obtain intra-frame information and inter-frame information, acquiring the trajectory information of the hand according to the intra-frame information and the inter-frame information, and controlling the movement of the robotic arm according to the trajectory information. The present invention collects the radar data of the hand through the millimeter-wave radar sensor, and realizes the function of synchronous movement of the user's hand and the robotic arm with low latency under the condition of only based on the radar data. The present invention can be widely applied to the field of robot control technology.

The invention discloses an electrical explosion oil removal method and a device for implementing the electrical explosion oil removal method, belongs to the technical field of metal surface treatment or cleaning, solves the defects of poor oil removal effect on the surface of a metal device and high cost in the prior art, and mainly provides the electrical explosion oil removal method. Comprising the following steps that S100, a device to be deoiled and a metal wire for electrical explosion are placed in insulating liquid; s200, the metal wire is gasified through a high-voltage pulse power supply, shock waves are released, and waste oil attached to the surface of the device to be deoiled is stripped off through insulating liquid; and S300, the steps of S100 to S200 are repeatedly carried out to carry out continuous oil removal on the device to be subjected to oil removal. The method is mainly used for reducing the oil removal cost on the premise of ensuring the oil removal effect on the surface of the metal device.

Embodiments of present disclosure provide a MIM capacitor device structure including a first conductive layer disposed over a substrate and a dielectric stack disposed on the first conductive layer. The dielectric stack includes a first dielectric layer disposed on the first conductive layer, and the first dielectric layer has a first oxygen concentration. The dielectric stack further includes a high-k dielectric layer disposed on the first dielectric layer, and the high-k dielectric layer has a second oxygen concentration different from the first oxygen concentration. The dielectric stack further includes a second dielectric layer disposed on the high-k dielectric layer, and the second dielectric layer has a third oxygen concentration different from the second oxygen concentration. The structure further includes a second conductive layer disposed on the dielectric stack.

The application provides a terahertz lattice ring coupled mode chip sensor, which comprises a substrate and a metal unit structure, the metal unit structure comprises two open circular ring metal devices with the same shape size and a metal rod, the two open circular ring metal devices and the metal rod are welded on the substrate, the openings of the two open circular ring metal devices are both outward, symmetric about the metal rod, and the spatial distance between each open circular ring metal device and the metal rod is the same. The terahertz lattice ring coupled mode chip sensor based on the coupling effect between ring resonance and lattice mode can optimize the interaction between terahertz waves and matter in both time and space dimensions, and has great practical application significance.

The present disclosure is directed to ablative devices comprising biocompatible materials in the form of a mesh to provide porosity to allow for the conveyance of conductive fluid to target tissue to be ablated. The mesh also increases the durability of the biocompatible material, reducing the amount of biocompatible material needed for both reusable devices and disposable ablative devices, such as ablative forceps and ablative probes.

The invention relates to the technical field of insulators, in particular to a suspension type composite insulator and a preparation method thereof.The suspension type composite insulator comprises a core rod, an umbrella skirt and a sheath which are arranged outside the core rod, an interface bonding layer located between the core rod and the umbrella skirt and between the core rod and the sheath, and metal connecting devices assembled at the two ends of the core rod; the umbrella skirts and the sheath are made of a high-temperature vulcanized silicone rubber material, the high-temperature vulcanized silicone rubber material contains a microencapsulation self-repairing agent or a shape memory polymer, and the core rod is made of a nano modified glass fiber reinforced composite material. A microencapsulated self-repairing agent or a shape memory polymer is pre-dispersed in a high-temperature vulcanized silicone rubber material adopted by the umbrella skirt and the sheath, so that when the material generates tiny cracks or damages due to external stress in the use process, internal microcapsules can be broken and release repairing monomers; and the monomers are subjected to polymerization reaction at the damaged part, so that cracks are automatically filled and repaired.

The application relates to a metal structure high-altitude assembling mechanism and method, and relates to the technical field of building construction, which comprises an assembling lug plate, the assembling lug plate comprises upper assembling lug plates and lower assembling lug plates installed at two ends of a metal structure, the upper assembling lug plates and the lower assembling lug plates are both provided with two bolt holes for bolt fixing and are symmetrically distributed at two sides of the metal structure, the upper assembling lug plates and the lower assembling lug plates are both provided with bolt holes for bolt fixing; the assembling mechanism further comprises an assembling connecting plate used for connecting the upper assembling lug plate on a lower section metal structure and the lower assembling lug plate on an upper section metal structure, the lower end of the assembling connecting plate is provided with a circular assembling fixing hole, the assembling fixing hole is connected with the bolt hole on the upper assembling lug plate through a bolt, and the middle end is provided with a long strip-shaped assembling adjusting hole. The application can be used for high-altitude assembling, rapid assembly welding and the like of metal devices such as metal frames, pipelines and large segmented equipment, the construction efficiency is improved, and the assembling quality is relatively high.

This invention discloses a microwave non-contact fed strain detection sensor for metal devices, comprising a vector network analyzer and a waveguide antenna connected thereto; a metamaterial array is arranged at a relative position to the waveguide antenna, and a feeding network is arranged on the side of the metamaterial array away from the waveguide antenna; the feeding network receives signals from the metamaterial array and outputs the signals to an interdigital strain sensing probe; the metal device under test is arranged on the side of the interdigital strain sensing probe away from the feeding network; the metamaterial array includes a dielectric substrate and radiating elements arranged in a periodic array on the surface of the dielectric substrate; the radiating elements are circular ring structures with a single opening, and the opening directions of the radiating elements are consistent; this invention has a simple structure, high electromagnetic signal capture efficiency, and an output shaft with an open structure, which can improve the output efficiency by 9.8% compared with traditional feeding networks; the interdigital capacitors provided have a more compact structure, lower profile, and stronger resonance characteristics.

The present application relates to a lens driving device, a camera and an electronic device. The lens driving device comprises a fixed part, a focusing movable part with a lens seat, an anti-shake movable part of an anti-shake support, a focusing support part connecting the fixed part and the movable part and allowing the focusing movable part to move along the optical axis direction of the lens relative to the anti-shake support, an anti-shake support part allowing the movable part of the anti-shake support to move along the vertical direction of the optical axis relative to the fixed part, and a driving part. The driving part comprises a magnet fixed on the fixed part, a focusing coil fixed on the lens seat, and an anti-shake coil fixed on the anti-shake support. The winding axis of the focusing coil substantially coincides with the optical axis and is located in front of or behind the magnet. The lens driving device of the present application can make the driving coil work stably in the magnetic field generated by the peripheral driving magnet, and is not easily affected by the magnetic field of the adjacent camera and the magnetic field or electric wave of the nearby metal device. That is, the magnetic interference between adjacent cameras is reduced.

The invention relates to a preparation method of a high-temperature-resistant anticorrosive coating, and belongs to the technical field of anticorrosive coatings. The preparation method comprises the following steps: heating 1, 1 '-bis (dimethylsilyl) ferrocene, methylbenzene, chloroplatinic acid, 2, 2, 3, 3, 4, 4, 4-heptafluorobutyl acrylate and bis-(2-methylallyl) cyclooctyl-1, 5-diene ruthenium, and reacting to obtain an intermediate product 1; weighing methyltrimethoxysilane, phenyltrimethoxysilane and the intermediate product 1, uniformly stirring and mixing, slowly dropwise adding diluted hydrochloric acid, hydrolyzing, and heating to react, so as to obtain modified silicon resin; adding the modified silicon resin into petroleum ether, and adding silicone oil, an organic tin catalyst, a bis-ammonia coupling agent, a filler and a curing agent to obtain an anticorrosive coating; the surface of the metal equipment is polished and wiped clean, then is coated with an anticorrosive coating, and is cured at room temperature; the hydrolysis modified organic silicon high-temperature-resistant anticorrosive paint prepared by the invention has excellent corrosion resistance, good wear resistance and strong adhesive force.

The invention provides a water-based semi-synthetic cutting fluid, which is prepared from the following raw materials in percentage by mass: 20 to 35 percent of naphthenic base oil, 1 to 3 percent of Tween-80, 1 to 3 percent of polyethylene glycol, 1 to 5 percent of Span60, 1 to 5 percent of oleic acid, 5 to 15 percent of polyether F-6, 0.5 to 1.5 percent of sodium sulfonate, 1 to 5 percent of bactericide, 1 to 5 percent of glycerol, 0.1 to 1 percent of defoaming agent, 0.5 to 2 percent of corrosion inhibitor, 8 to 12 percent of antirust agent and the balance of water. According to the water-based semi-synthetic cutting fluid, proper raw materials are compounded through optimization, and particularly, a proper amount of polyether F-6, polyethylene glycol and glycerol are added on the basis of a formula, so that the water-based semi-synthetic cutting fluid has good lubricating performance and cooling performance, and is more suitable for processing of metal devices.

According to the cold working assembly process method for the aluminum electrolysis cell anode conductive device, the aluminum electrolysis cell anode conductive device is formed by combining split aluminum guide rods, anode conductive stand column plates and trapezoidal anode conductive cross beams, an anode conductive metal device can be assembled with a plurality of anode carbon blocks in an interchanging mode, and the device can be adjusted through fastening bolts; and dynamically adjusting and correcting the anode conductive cross beam according to the form and position deviation of the assembly structure formed by the corresponding carbon block or the anode carbon blocks of a certain batch. When the anode conductive device is assembled, the anode carbon block is horizontally placed in the assembly positioning fixture, and then the anode conductive cross beam is horizontally moved from the side part of the anode carbon block by adopting a method of horizontally pushing or extruding the side part; and the anode conductive metal device is assembled into two trapezoidal anode conductive concave grooves in the upper part of the anode carbon block correspondingly arranged at the upper part of the anode carbon block, so that the anode conductive metal device and the anode carbon block realize hooking structure connection and conductive structure connection at vertical set positions.

There is provided a system and method for provisioning raw metal devices. The provisioning process includes multiple phases. In a first provisioning phase, an operating system and client application are installed on the metal device. Installing the client application may include storing a private key on the metal device, and a public key on a master device. In a second provisioning phase, software applications defining the metal's functions may be installed on the metal device. Master device may require authentication of metals prior to initiating a provisioning phase. In a third provisioning phase, software updates, security patches and configurations for installed applications may be pushed to metals.

The application discloses a kind of surface nanocrystalline powder metalling device, including infiltration tank, transmission mechanism and clamping mechanism, it is characterized in that, the transmission mechanism is by fixed frame, input shaft, first bevel gear, second bevel gear and third bevel gear are formed, the infiltration tank is by left end cover, tank body and right end cover are formed, tank body inner surface is evenly provided with baffle, heating plate is arranged between tank body and heat preservation box, rotating shaft in tank body is provided with left sealing plate, right sealing plate and clamping mechanism, workpiece is installed on clamping mechanism, projectile and infiltrant are arranged between left sealing plate and right sealing plate, the linear velocity of projectile is 2.5~10m / s, the radius r of tank body and projectile linear velocity satisfy formula, beneficial to transmission mechanism so that tank body and rotating shaft produce reverse rotation, increase the relative impact velocity of projectile and workpiece, make plastic deformation on the surface of workpiece and form nanometer layer, effectively solve the problem that material after nanocrystallization pretreatment faces in heat expansion infiltration process.

The application discloses a laser-electrolysis-ultrasonic in-situ composite super-precision cutting device for black metal, which comprises a workpiece, a diamond tool head, a tool handle, an ultrasonic vibration unit, a focused infrared laser beam and a metal layer. In the machining process, an electrochemical reaction occurs at the cutting position of the workpiece to generate an oxidation layer with soft and loose quality and weak carbon affinity, thereby avoiding direct contact between the diamond and the black metal matrix material and reducing chemical wear caused by iron-carbon affinity. The application simultaneously introduces inert high-pressure airflow and electrolyte droplet jet flow for continuous heat dissipation and cooling of the machining area, so that the machining process temperature is reduced. On this basis, the focused infrared laser beam introduced in the machining process can accelerate the electrochemical reaction and increase the thickness of the oxidation layer, thereby being beneficial to efficient and low-temperature cutting. The ultrasonic vibration introduced in the machining process can further utilize the ultrasonic cavitation effect to accelerate material removal and removal. Through the ingenious in-situ composite of the laser, the ultrasonic and the electrolysis electric field, high-quality, efficient, super-precision and low-loss machining of the black metal complex component is realized.

The invention relates to a tenon-and-mortise structure connection type anode conductive cross beam, which is a component for replacing and canceling an existing aluminum electrolysis cell anode conductive device, casting an iron ring by adopting a steel claw head, and carrying out tenon-and-mortise structure bearing conductive connection on the anode conductive device and an anode block. The anode conductive metal device is in a trapezoidal section structure shape, or in a rectangular section structure shape of which the side part is provided with a mortise and tenon joint boss, or in a rectangular section structure shape of which the side part is provided with a horizontal occlusion tooth groove. And after the anode conductive cross beam is assembled from the side part or the upper part of the anode carbon block to the side part of the anode conductive convex platform or the anode conductive concave groove of the anode carbon block, the anode conductive cross beam can be connected with the anode carbon block by a mortise and tenon hook type bearing structure or a conductive structure.

The invention discloses a precise sheet metal laser machining device, and belongs to the technical field of sheet metal machining.The laser machining device comprises a workbench internally provided with a cavity, a cantilever is arranged at one end of the upper surface of the workbench, a laser generator is slidably connected to the lower surface of the cantilever, and an adjusting platform is arranged on the upper surface of the workbench; a metal plate is placed on the adjusting platform and cut through the laser generator, air channels are symmetrically arranged on the inner bottom face of the cantilever, the tails of the air channels are connected with air inlet pipes through tee joints, the air inlet pipes penetrate through the workbench and extend into the inner cavity, a filter barrel is arranged in the cavity of the workbench, the air inlet pipes are connected with the filter barrel, and the upper surface of the filter barrel extends outwards to form an air outlet pipe. The tail end of the air outlet pipe is connected with a filter box, and an exhaust fan is assembled at the tail end of the filter box. The air ducts are symmetrically arranged on the inner bottom face of the cantilever, smoke generated during cutting can be effectively guided into the filtering system, the smoke dust collecting efficiency is guaranteed, and the smoke generated during cutting of the laser generator is filtered twice through the filtering barrel and the filtering box.

The present invention relates to a molten metal device including a hollow columnar molten metal accommodation part having an open upper end, a heat insulation part covering at least a side part of the molten metal accommodation part, and a casing for storing the molten metal accommodation part and the heat insulation part. The casing includes a bottom plate forming a substantially horizontal plane and at least three side plates formed at a predetermined angle with respect to the bottom plate and joined to each other. One portion of the inner surface and / or the outer surface of at least one of the side plates of the casing has a prescribed height in a direction substantially perpendicular to a plane formed by the side plate surface, and is reinforced by a reinforcing member including a linear portion in plan view of the side plate surface. The linear portion of the reinforcing member includes at least one inclined reinforcing member in which an angle of a straight line formed by an end part along a longitudinal direction of the linear portion of the reinforcing member with respect to an arbitrary intersection line between the surface of the side plate reinforced by the linear portion of the reinforcing member and a horizontal plane is more than 0° and less than 90° in plan view of the side plate surface.

The invention discloses an electromagnetic heating system for VOCs catalytic combustion, and belongs to the technical field of electromagnetic heating devices.The electromagnetic heating system comprises a combustion box, the combustion box is of a cubic structure, a heat insulation layer is arranged on the inner wall of the combustion box, an air inlet pipe is installed on one side of the combustion box, and a plurality of sets of preheating pipes are installed in the combustion box; by arranging electromagnetic heating, the principle is that an alternating magnetic field is generated through an electronic circuit board component, when a metal device is used for cutting alternating magnetic lines, alternating current, namely eddy current, can be generated on the metal device part, and the electromagnetic heating effect is achieved. The eddy current enables carriers of the metal device to move irregularly at a high speed, the carriers collide and rub with atoms to generate heat energy, and therefore the effect of rapidly heating the heating device is achieved, and due to the fact that the metal device is heated by itself, the heat conversion rate of equipment is greatly improved.

The invention provides a metal-insulator-metal device structure and a method of forming the same. The metal-insulator-metal device structure includes a first conductive layer disposed over a substrate and a dielectric stack disposed on the first conductive layer. The dielectric stack includes a first dielectric layer disposed on the first conductive layer, and the first dielectric layer has a first oxygen concentration. The dielectric stack also includes a high dielectric constant dielectric layer disposed on the first dielectric layer, and the high dielectric constant dielectric layer has a second oxygen concentration different from the first oxygen concentration. The dielectric stack further includes a second dielectric layer disposed on the high dielectric constant dielectric layer, and the second dielectric layer has a third oxygen concentration different from the second oxygen concentration. The metal-insulator-metal device structure also includes a second conductive layer disposed on the dielectric stack.

The invention discloses anti-interference NFC label equipment. The anti-interference NFC label equipment comprises a PVC panel layer, a chip function layer, an anti-metal interference panel layer and a soft magnet panel layer which are sequentially laminated from top to bottom, the PVC panel is provided with a two-dimensional code area and an NFC induction area. The anti-metal interference panel is used for resisting electromagnetic interference generated by surrounding metal equipment and structures; the soft magnet panel layer is made of soft magnets and used for being attracted to the surface of an iron object. According to the NFC processing method, on the basis of the current NFC technology, the problem of calling the app to execute the preset operation in different NFC scenes is optimized, so that non-contact point-to-point data transmission non-sensitive operation can still be performed in multiple scenes such as opening the app, running the app in the background and not running the app in the background, and page jumping or preset action execution is realized.

The present disclosure provides a metal-ferroelectric-metal device with a two-dimensional van der Waals-bonded transition metal chalcogenide interfacial layer, and a method for manufacturing the same. More particularly, the present disclosure provides a metal-ferroelectric-metal device with a two-dimensional van der Waals-bonded transition metal chalcogenide interfacial layer to improve crystallinity or domain alignment of the ferroelectric material, and a method for manufacturing the same.

The invention relates to the technical field of laser welding machines, and provides a metal medical instrument laser welding machine which comprises a mounting rack, laser spot welding equipment is arranged at the top of the mounting rack, a distance measuring sensor is arranged at the bottom of the laser spot welding equipment, a mounting box is arranged in the middle of the mounting rack, and the metal medical instrument laser welding machine further comprises a mounting frame and an instrument clamping mechanism. The mounting frame is fixedly connected to the top of the mounting box body, fixed cylinders are fixedly connected to the two sides of the interior of the mounting frame, rotating cylinders are rotationally connected to the ends, close to each other, of the two fixed cylinders, and the fixed cylinders communicate with the rotating cylinders. By means of the technical scheme, the problem that in the prior art, when two metal medical devices are welded through a medical laser welding machine, due to the fact that the metal medical devices are generally oval or rectangular in appearance, the metal medical devices are turned over in the welding process, and the metal medical devices cannot be welded easily is solved. And the problem that the laser emission distance does not correspond to the welding surface distance of the metal instrument easily occurs.

The invention relates to the technical field of metal material plastic forming, in particular to a metal microstructure strain obtaining method based on a microstructure. The method comprises the following steps: S1, preparing a plurality of mechanical property test samples of a metal blank before forming; s2, metal blank pre-deformation samples with different strain magnitudes are manufactured; s3, detecting and analyzing crystallographic characteristics of each metal blank pre-deformation sample; s4, establishing a theoretical calculation model of the crystallographic characteristics of the deformed metal along with the change of the strain; s5, detecting and analyzing crystallographic characteristics of the to-be-tested plastic forming metal microstructure device in different areas; and S6, based on the crystallographic characteristics of the different areas of the to-be-tested plastic forming metal microstructure device, calculating and analyzing the strain in the different areas of the to-be-tested plastic forming metal microstructure device by adopting a theoretical calculation model. According to the method, the internal strain of the plastic forming microstructure metal device can be accurately and effectively calculated and analyzed.

The utility model discloses a sheet metal device for waste gas treatment, which comprises a first box body, a butt joint pipeline and an auxiliary mechanism, and a second box body is arranged at the side part of the first box body; the butt joint pipelines are fixedly connected to the side parts of the first box body and the second box body in a sleeving manner; the auxiliary mechanism is arranged between the first box body and the second box body and comprises a butt joint frame and a bearing frame, and the butt joint frame is fixedly connected to the side portion of the first box body; the auxiliary mechanism is fixedly connected to the side portion of the second box body and further comprises a first plate body. The first box body, the second box body, the locking ring and the protection piece are matched with one another, the first box body and the second box body are used for splitting the metal plate box body, the first plate body and the second plate body are connected through the assembly columns, and therefore the metal plate box body can be arranged in a split mode, and the assembly efficiency is improved. And the interiors of the first box body and the second box body are treated, and meanwhile scratch-proof protection on the exteriors of the first box body and the second box body is facilitated.