160results about How to "Save shipping space" patented technology

The utility model provides a photovoltaic support and a photovoltaic power generation system, and relates to the field of photovoltaic technology. The photovoltaic support comprises a base and a supporting assembly, the base comprises a bottom plate and a connecting piece arranged in the first direction, one end of the connecting piece is connected with the base, fixing holes are formed in the peripheral side of the base, and the base is used for installing the photovoltaic support on a building through bolts penetrating through the fixing holes; the supporting assembly is detachably connected with the connecting piece, a binding hole is formed in the supporting assembly, and the binding hole is used for binding a photovoltaic panel to the supporting assembly through a rope. The overall disassembly and assembly efficiency of the photovoltaic support can be improved, the supporting assembly becomes a temporary storage shelf for photovoltaic panels, and the transportation space is reduced.

The invention relates to the technical field of medical aluminum foil processing, and particularly discloses a medical aluminum foil processing technology and cutting equipment. The bottom of the workbench is fixedly connected with a support, the inner side of the support is rotationally connected with a conveying component, the winding mechanism is arranged, an aluminum foil waste roll can be more compact, the occupied space of the aluminum foil waste roll is greatly reduced, and therefore after original loosely-wound aluminum foil waste is extruded, the aluminum foil waste can be conveyed to the conveying component. The waste materials with the same mass only need to occupy half of the original space or even less space, so that more waste materials can be wound and stored on the winding assembly, compact aluminum foil waste material rolls are more convenient to transport, the occupied transportation space is smaller no matter the waste materials are transferred in a workshop or transported to a recycling treatment point, and the transportation efficiency is improved. In this way, the transportation cost can be reduced, the compact waste roll is more stable in the transportation process, and potential safety hazards caused by shaking or loosening are reduced.

The utility model provides a household balcony photovoltaic support system, which relates to the technical field of photovoltaic equipment, and comprises a plurality of support assemblies which are transversely arranged along a balcony fence, the upper end of each support assembly is provided with a connecting mechanism used for connecting the balcony fence, each support assembly comprises a main beam, a bottom beam and a support rod, the main beam is used for fixedly arranging a photovoltaic panel, and the bottom beam is used for fixedly arranging the photovoltaic panel. The main beam is pivoted with the upper end of the bottom beam, one end of the supporting rod is hinged to the middle of the main beam, and the other end of the supporting rod is detachably and fixedly connected to the bottom beam; when the lower ends of the main beam and the bottom beam are close to each other, the bottom beam and the main beam are connected in an inserted mode, and the supporting rod is contained between the bottom beam and the main beam. The multiple supporting assemblies are fixedly connected through a transverse rod, and a fastener used for being connected with a balcony handrail is arranged on the transverse rod. The photovoltaic panel fixing device is fixed on a balcony handrail to realize the installation of the photovoltaic panel, so that the photovoltaic panel absorbs light energy from different angles, and the photovoltaic panel fixing device is simple in overall structure, convenient to install, high in universality, easy to operate, easy to package and store and convenient for common people to use.

The invention discloses an equipment rapid loading and unloading storage and transportation box and method serving as a power transmission line emergency repair tower foundation, and belongs to the technical field of power transmission line emergency repair. The box comprises a main body frame and a box chassis, the main body frame and the box chassis are designed in a split mode, the main body frame is a cuboid cover with an opening in the bottom face, and the box chassis is of a platform type structure; the box body chassis can also serve as a power transmission line rush-repair tower foundation, the main body frame and the box body chassis are detachably connected, and after the power transmission line rush-repair tower arrives at an operation site, the main body frame and the box body chassis are detached, the main body frame is lifted away, and rush-repair equipment is stacked on the box body chassis. The box body chassis has two functions of serving as a box bottom of the storage and transportation box body and serving as a foundation of the power transmission line emergency repair tower, a main body structure of the power transmission line emergency repair tower is assembled on the box body chassis, and the box body chassis serves as a pressure-bearing foundation, so that the convenience degree and the construction efficiency of equipment loading and unloading are effectively improved; and the material cost and the storage and transportation space are also saved.

The utility model discloses a finished product combination grass planting ditch which comprises a device body, the device body comprises a first combination device and a second combination device, and the first combination device is spliced and fixed at the left end of the second combination device; the first combination device comprises a first combination frame, a first combination plate and a first connecting edge, the first combination frame, the first combination plate and the first connecting edge are all of a smooth transition and integrated machining forming structure, the first combination frame is of an arc-shaped structure, the first combination plate is located at the left end of the first combination frame, and the second combination plate is located at the right end of the first combination frame; the first connecting edge is located at the right end of the first combination plate, a plurality of sets of fixing holes are formed in the surface of the first connecting edge, and a filter screen is installed in the first combination frame. By means of the device, the grass ditch body can be neater, the effect is more attractive, the construction efficiency of the sponge city grass planting ditch is greatly improved, and the construction cost is reduced.

This utility model discloses a folding stool, including a seat frame, a backrest, and legs. The backrest is rotatably mounted to the seat frame via a first pivot, and the legs are hinged to the seat frame via a first adjustment assembly. The first adjustment assembly has a limit hole, and the seat frame has a positioning hole corresponding to the limit hole. A rotating pin is inserted into the limit hole and the positioning hole. A second adjustment assembly is provided between the backrest and the seat frame. By providing a second adjustment assembly consisting of a pull plate, a toothed plate, a gear, and a spring, the user can easily adjust the backrest angle by holding the pull plate with one hand to separate the toothed plate from the gear. After releasing the pull plate, the spring automatically resets, causing the toothed plate to re-engage with the gear for quick locking. This structure is not only easy to operate but also achieves stepless adjustment, meeting the user's personalized comfort needs and overcoming the shortcomings of traditional pin-type adjustment which has a fixed angle, is laborious to operate, and is prone to wear.

The utility model provides a kind of stamping part waste recovery equipment, it is related to waste recovery equipment technical field, including bottom plate, the top fixed mounting of bottom plate has punch press, the inner wall bottom fixed mounting of punch press has conveyer, the outer wall one side fixed mounting of punch press has discharge gate, the top fixed mounting of bottom plate has support.The utility model in this paper, waste is entered inside storage box after transmission machine, when camera finds that the number of waste inside storage box is too much, storage box can be moved by electric sliding block, start to change box work, ensure the continuity and stability of production, then cylinder is driven extrusion plate to descend by piston rod, insert inside storage box, the waste collected is compressed into block, greatly reduce the volume of waste, save transportation and storage space, also promote the recycling of waste, reduce resource waste.

The utility model relates to the field of solid wood tables, and discloses a multifunctional adjustable solid wood table which comprises supporting legs, inserting blocks are connected to the inner walls of the supporting legs in an inserted mode, a connecting shaft is fixedly connected to the left ends of the inserting blocks, a fixing frame is rotatably connected to the outer wall of the connecting shaft, and a table plate is fixedly connected to the top end of the fixing frame. A drawer is arranged on the side wall of the table plate, a wedge block is elastically connected to the inner wall of the bottom end of the connecting shaft through a reset spring, a pressing plate is slidably connected to the outer wall of the wedge block, and a guide mechanism is arranged on the inner wall of the bottom end of the connecting shaft. According to the utility model, the inner wall of the fixing frame can continuously extrude the wedge block for insertion or separation by pressing the pressing plate, so that the table plate can be adjusted according to the use condition of a user, the angle of the table plate can be quickly adjusted, the neck and shoulder pressure caused by long-time head lowering work is reduced, and the cervical vertebra fatigue and discomfort are reduced; the practical operation is simple and convenient, and the device performance is improved to a certain extent.

This utility model discloses a foldable electric stubble trimmer, belonging to the field of agricultural and livestock machinery. It includes a main frame with two symmetrical longitudinal beams and a main ground wheel below. A short beam is connected to the upper rear of the longitudinal beams via a rear pin and a front pin. A sub-frame is hinged to the outer side of the short beam. The sub-frame has casters below and a liftable motor frame above, with several motors arranged horizontally on the motor frame. A wire rope trimming head is installed at the lower end of the motor shaft. A generator provides power to the main frame. The sub-frame can be folded 90° and secured with a locking pin. This device has a compact structure, is portable, has high efficiency for wide-area operation, can follow contours and adjust the stubble height, reducing damage to pastures caused by trampling.

The utility model relates to the technical field of house building, and provides a modular integrated box house roof convenient to disassemble and assemble, which comprises a main frame, a plurality of reinforcing cross rods which are distributed at equal intervals along the width direction of the main frame are fixedly connected to the inner side of the main frame, a placing groove is formed in the top surface of the main frame, and a top plate assembly is placed on the inner side of the placing groove. The top of the main frame is fixedly connected with a first pressing piece used for pressing the top plate assembly, the two ends of the bottom face of the main frame are fixedly connected with guide rails, a bottom plate assembly is arranged between the two guide rails, one end of each guide rail is provided with an assembling groove, and the inner side of each assembling groove is provided with a second pressing piece used for pressing the bottom plate assembly. Traditional bolt connection is replaced by sliding fit of the clamping strips and the clamping grooves, installation steps are simplified, dependence on hole site precision is reduced, the problem of looseness caused by abrasion of bolt holes after repeated disassembly and assembly is effectively solved, and construction efficiency is remarkably improved.

The utility model relates to the field of antennas, and discloses a dipole antenna which comprises a connecting base and a supporting arm, a rotating mechanism is fixedly arranged at the center of the upper end face of the connecting base and comprises an upper layer plate, a middle layer plate and a lower layer plate, and a fixing frame is fixedly arranged at the center of the upper end face of the upper layer plate. And a plurality of main body pieces are arranged on the two sides of the outer wall of the fixing frame in a threaded mode, connecting pieces are arranged on one sides of the multiple main body pieces in a threaded mode, and rotating grooves are formed in the centers of the front end face and the rear end face of the connecting base in a penetrating mode. According to the utility model, the effect of rotating the fixing frame is realized through the rotating mechanism, so that the orientation of the main body piece is adjusted, the main body piece is prevented from being scratched with other objects in a relatively long and narrow mounting space, and the rotating angle of the supporting arm can be preliminarily adjusted through the embedding groove and the embedding block; when the oscillator antenna is installed on a side wall and a roof, the orientation of the fixing frame is always upward.

The utility model discloses a foldable transfer bed instrument fixing frame, and particularly relates to the technical field of emergency treatment transfer, which comprises a first main supporting plate, a second main supporting plate is arranged on one side of the first main supporting plate, a telescopic mechanism is arranged between the first main supporting plate and the second main supporting plate, and two main fixing blocks are fixed at the bottom of the first main supporting plate and the bottom of the second main supporting plate respectively. And the four main fixing blocks are rotationally connected with main supporting legs through rotating shafts. By rotating the cylinder, the cylinder can drive the threaded column to rotate in the threaded groove, the cylinder can be detached from the secondary supporting plate, the inserting blocks at the bottoms of the two secondary supporting legs are pulled out of the inserting grooves, the two secondary supporting legs are rotated into the containing groove, and then the two rotating rods are rotated; the secondary supporting plate is placed on the tops of the first main supporting plate and the second main supporting plate, so that the fixing frame is folded, and transportation and storage space is saved conveniently.

The invention belongs to the technical field of carton processing, and particularly relates to a cutting device for packaging carton processing, which comprises a roller conveyor, and a cutting assembly is mounted in the roller conveyor. Through use of the cutting seat, the cutting table, the cutting motor, the cut-off tool, the edge cutting tool, the extrusion seat, a photoelectric sensor, an extrusion and push air cylinder and an extrusion plate, the ends and corners of the packaging carton can be synchronously cut off, so that all faces of the packaging carton are cut into proper shapes at a time, the packaging carton does not need to be cut and processed many times, and the production efficiency is improved. And therefore, the workload is reduced, the production progress and the machining efficiency are improved, the surface of the packaging carton can be extruded and smoothed, the packaging carton is prevented from being bent, follow-up cutting work is facilitated, and the cutting machining quality is improved.

The utility model relates to the field of propaganda material, disclose a kind of foldable propaganda material show stand, including storage box, the sliding slot is opened in the storage box inner wall, the sliding block is slidably connected in the sliding slot inner wall, the folding frame is fixedly connected in the sliding block top, the lower display frame is hinged in the folding frame rear side bottom, the upper display frame is hinged in the folding frame front side top, the fixed display frame is fixedly connected in the sliding block front side, the box door is inserted in the storage box top inner wall, the folding frame top inner wall is elastically connected with limiting block by limiting spring. In the utility model, after the expansion of show stand, two groups of lower display frame, two groups of upper display frame and fixed display frame form three-dimensional multilayer display space, can simultaneously display poster, brochure, leaflet and other various forms of public health propaganda material, and the display amount of material is more than doubled than traditional plane show stand, which provides strong support for the effective dissemination of public health knowledge.

The utility model discloses a building board cutting machine, which relates to the technical field of building board processing equipment and is characterized in that mounting ends of first connecting rods are rotatably mounted on a bearing surface of a cutting bed, two first connecting rods form a group, and first connecting rods are inwards clamped and fixed at adjusting ends of the first connecting rods; the first connecting rod penetrates through the protective plate, the first connecting rod is slidably connected into an adjusting groove formed in the adjusting seat in the length direction, and the protective plate is slidably connected to the surface of the adjusting seat in a sleeving mode, so that the protective plate drives the first connecting rod to move in the adjusting groove to adjust the inclination of the first connecting rod; the device has the advantages that the lifting adjusting mechanism is installed between the operation frame and the cutting bed, when the adjusting rod is rotated, the position of the protection plate on the adjusting seat is pulled close or far, linear movement of the first connecting rod is achieved, and the distance between the first connecting rod and the adjusting end of the second connecting rod is reduced; the inclination degree of the first connecting rod, namely the height between the cutting bed and the operation frame, is adjusted.

The present invention discloses a stable transportation structure for LNG storage tanks, and relates to the technical field of a container installation device, comprising a bracket, wherein a plurality of slide grooves are arranged horizontally and vertically inside the bracket, and a connecting shaft is fixed to the inner walls on both sides of each slide groove; a front end plate and a rear end plate are rotatably connected above the front and rear ends of the slide groove, respectively, wherein the front end plate and the rear end plate are provided with locks that are tightly connected to the slide groove; a plurality of evenly distributed partitions are rotatably connected above the slide groove between the front end plate and the rear end plate for dividing the space; a storage tank, a valve is provided in front of the storage tank, and hoops are provided at the front and rear of the tank body of the storage tank, and collars with C-shaped openings are provided on both sides of the collar; reinforcing rods are fixed above and below the two collars, and the front ends of the reinforcing rods extend to a position flush with the valve; the collars on both sides of the storage tank are sleeved on the connecting shafts on both sides of the slide groove, thereby allowing multiple storage tanks to be slidably connected in the slide groove; the present invention enables the storage tank to be efficiently loaded and unloaded and safely fixed.

The utility model relates to the technical field of dust removers, and discloses an oblique insertion type filter cartridge dust remover, which comprises a box body, three groups of filter cartridges are arranged in the box body, the filter cartridges are distributed in the box body at equal intervals, an ash bucket is arranged below the filter cartridges, and the ash bucket is provided with a sound wave ash cleaner. According to the obliquely-inserted type filter cartridge dust remover, in the process that the obliquely-inserted type filter cartridge dust remover crushes engineering construction waste, an assembled structure is arranged and is different from a welded structure in the market, and an equipment frame comprises a box body, a blowing system, a filter cartridge, an ash hopper, an ash discharging valve and an ash barrel which are all formed by assembling part bolts one by one; the device can break up the whole into parts, each part can be lifted by a single person, rapid installation can be achieved, the transportation space is reduced, the sound wave ash removal device, the pneumatic knocking hammer and the material level switch are adopted, ash blocking is greatly reduced, the automatic ash removal function is achieved, and the maintenance workload is reduced.

This utility model relates to the field of display stands, and discloses a surround display stand, including a central stand, a horizontal plate fixedly connected to the inner center of the central stand, a top stand on the top of the central stand, and side stands connected to the left and right sides of the central stand by limiting components. Each limiting component includes a retaining frame fixedly connected to the back of the side stands, with a limiting groove on the outer wall of the retaining frame. A limiting block is elastically connected to the inner wall of the central stand by a limiting spring, and a limiting rod is fixedly connected to the outer wall of the limiting block. The left and right sides of the central stand have retaining slots. In this utility model, the limiting components allow for flexible assembly and disassembly of the side stands and the central stand. Furthermore, the layered structure design of the central stand, side stands, and top stand allows for reasonable layout of products of different sizes and types, making full use of space for product display, greatly enhancing the richness and attractiveness of product displays, and meeting diverse display needs.

The invention is applicable to the technical field of tunnel construction, and provides a supporting device for tunnel construction, which comprises a bottom frame and a movable rod, a synchronous supporting mechanism is arranged at the top end of the movable rod and is abutted against a tunnel during working, and a locking module is mounted on the synchronous supporting mechanism and is used for fixing under the condition of supporting by the synchronous supporting mechanism. The directional driving mechanism is connected with the movable rod, the directional driving mechanism pushes the movable rod and the synchronous supporting mechanism to slide in the height direction of the bottom frame under the working condition, the elastic locking mechanisms are symmetrically arranged on the outer side of the directional driving mechanism, and when the free ends of the elastic locking mechanisms are embedded into the movable rod, the movable rod is supported; the movable rod and the synchronous supporting mechanism are prevented from falling during supporting; the supporting device can adapt to tunnels of various specifications and sizes, structure looseness is not prone to occurring in the supporting process, stable supporting can be conducted, falling is not prone to occurring when the height is adjusted, and the phenomenon of overall stress crushing can be effectively restrained.

The invention provides a concrete dust-free stirring system, and relates to the technical field of concrete stirring, the concrete dust-free stirring system comprises a stirring bin shell, a discharge valve and a PLC circuit control panel, four supporting legs are distributed on the outer wall of the stirring bin shell, a stirring bin inner container is placed on the inner wall of the stirring bin shell, the top surfaces of the four supporting legs are jointly clamped with a sealing mechanism, and the sealing mechanism is connected with the discharge valve. A driving mechanism is fixedly installed on the top face of the sealing mechanism, the sealing mechanism is further rotationally connected with a stirring mechanism, six ventilation through holes of the stirring mechanism play a ventilation role in the stirring process and are used for balancing the pressure in the stirring bin inner container, a dustproof net shields the ventilation through holes, and dust is prevented from flying out. According to the concrete stirring device, the stirring bin inner container and the circular sealing cover form a semi-sealing structure, and the annular sealing rubber ring and the annular sealing groove are matched for sealing, so that the concrete stirring device has the semi-sealing stirring effect, and the problems that when an existing concrete stirring device is used, the body health of constructors is affected, and the service life of the stirring device is affected are solved.

The utility model discloses a blister tray blanking device, and relates to the technical field of blister tray processing, the blister tray blanking device is characterized in that the left top outer wall and the right top outer wall of a blanking base are fixedly connected with a material inlet and outlet, the center of a support frame is provided with a transmission gear, and a limiting assembly for limiting is arranged on the outer wall of the support frame; and the interior of the first sliding rail is slidably connected with a rotating shaft. According to the blister tray discharging device, a demolded blister tray moves rightwards through transmission of a transmission belt, the outer wall of the demolded blister tray is tightly attached to the outer wall of a limiting wheel, the limiting wheel can limit the position of the demolded blister tray in the transmission process, and a four-corner pressing block makes contact with the outer wall of the top of the demolded blister tray to press the demolded blister tray downwards; and the plastic uptake trays obtained after demolding are helped to quickly enter the bottom of the collecting bin, the plastic uptake trays obtained after demolding are sequentially accumulated in the collecting bin, stacking and collecting work is completed, the transportation space is saved, and follow-up use is facilitated.

The application relates to a fast-built outdoor water storage tank, and relates to the field of water storage equipment for outdoor operation, which comprises a water storage assembly, a support and a supporting assembly, the water storage assembly comprises a water storage bucket and multiple framework rings, a water adding pipe is arranged at the top of the water storage bucket, a water outlet pipe is arranged at the lower part of the water storage bucket, the water storage bucket is made of flexible material, multiple framework rings are fixedly installed on the outer wall of the water storage bucket in the vertical direction, the water storage bucket is placed on the support, the supporting assembly is arranged on the support, the supporting assembly comprises a driving piece and two pushing pieces, the two pushing pieces are arranged on the opposite sides of the top of the support, the driving piece drives the two pushing pieces to move close to each other, and the water storage bucket is supported. The application is convenient for geological exploration workers to install and build the water storage tank outdoors.

The invention discloses an aluminum alloy door and window assembly component and an installation method, and relates to the technical field of aluminum alloy doors and windows, the aluminum alloy door and window assembly component comprises two glass doors and windows, the left side and the right side of each glass door and window are slidably connected and provided with blocking grooves, and the left one of the two blocking grooves is fixedly provided with a vertical connecting column and a frame installation structure through bolts; the frame installation structure comprises a vertical installation column, and the vertical installation column is fixedly installed on the side, away from the glass door and window, of the blocking groove located on the right side through a bolt. The frame mounting structure and the door and window dismounting and mounting structure are designed and mounted, so that the situation that the aluminum alloy door and window are difficult to dismount and maintain when damaged is avoided, the mounting and dismounting time and energy of operators are saved, and the aluminum alloy door and window can be mounted and maintained more simply and quickly; the transportation space of the aluminum alloy door and window frame is saved, the disassembly and assembly efficiency is improved, and the service life of the aluminum alloy door and window is also prolonged.

The utility model relates to a folding canopy for a battery swap station and the battery swap station, and the folding canopy comprises a first canopy piece which is provided with a first connecting piece and is used for being hinged with the battery swap station, and a second canopy piece which is provided with a second connecting piece and is used for being hinged with the battery swap station; the first rain shed part is hinged to the end of the first rain shed part, the second rain shed part is hinged to the end of the first rain shed part, the second rain shed part is detachably connected with the first connecting part, the second rain shed part is further provided with a second connecting part, and the second connecting part is used for being detachably connected with a battery replacing station. According to the folding canopy for the battery swap station and the battery swap station, the transportation space can be reduced, and therefore the transportation cost is reduced.

The utility model discloses a municipal engineering drainage pipeline dredging device, and relates to the technical field of pipeline dredging, the main points of the technical scheme are that a shielding mechanism comprises umbrella cloth, hinge rods, a supporting rod and a top ring, the top ring is sleeved on the surface of an auxiliary pipe, the side surface of the top ring is circumferentially distributed and rotatably connected with the hinge rods, and the supporting rod is connected with the umbrella cloth. The hinge rod serves as a supporting framework and is fixed to the shielding face of the umbrella cloth through sewing threads, the hinge rod is rotationally connected with a supporting rod through a connecting handle, the end, connected to the hinge rod, of the supporting rod is a rotating end, and the other end of the supporting rod is a supporting end. The shielding mechanism is arranged, when sewage is sprayed out of the drainage well, the hinge rod is supported by the supporting rod, the umbrella cloth is opened by the hinge rod, the drainage well opening is shielded by the umbrella cloth, and the sewage is prevented from being splashed to workers.

This utility model relates to a detachable cable reel, comprising a cable reel body, the cable reel body including a cylindrical body and two side plates, the cylindrical body and the side plates being connected by snap-fit ​​pins, the cylindrical body including two identical first arc-shaped cylinders and a second arc-shaped cylinder; the first arc-shaped cylinder and the second arc-shaped cylinder are detachably connected, the side of the first arc-shaped cylinder that contacts the second arc-shaped cylinder is defined as the first contact surface; the side of the second arc-shaped cylinder that contacts the first arc-shaped cylinder is defined as the second contact surface. This utility model relates to the technical field of cable reels. This utility model has the advantages of facilitating operators to stack the first and second arc-shaped cylinders when transporting reels in batches, saving transportation space; in addition, it also facilitates assembly personnel to replace the first or second arc-shaped cylinder in a timely manner to assemble a new reel, reducing product waste.

The utility model discloses a glass spare packaging tray, the packaging tray is used for packing glass spare, the glass spare includes glass board and the end surface perpendicular to glass board and installs the screw on its edge, the length of screw is greater than the thickness of glass board, be equipped with a plurality of for placing the accommodation slot of glass spare on the packaging tray, the bottom of accommodation slot still is equipped with the limiting hole for accommodating screw. The glass spare packaging tray of the utility model, sets up the limiting hole at the accommodation slot bottom of packaging tray, makes the screw of installation at the edge of glass spare can be embedded in, thereby avoids glass spare in the process of transportation and handling and causes the inclination or shaking because of screw protruding, thereby has strengthened the stability of glass spare in tray.

The utility model relates to the technical field of environment-friendly gas cabinets, and provides a modularized environment-friendly gas cabinet which comprises a back plate and two side plate grooves, first expansion grooves are formed in the two ends of the back plate respectively, the two side plate grooves are formed in the side, close to the first expansion grooves, of the back plate respectively, and side plates are arranged at the two ends, close to the side plate grooves, of the back plate respectively. The top plate is arranged at the top of the back plate, and a bottom plate is arranged at the end, away from the top plate, of the back plate; the door plate is arranged at the end, away from the back plate, of the side panel, and a connecting rod is arranged at the end, close to the side panel, of the door plate; during use, the back plate, the side plates, the top plate, the bottom plate and the door plate are all independent plate bodies, the connecting rod is fixed at one end of the door plate through the connecting block, the independent modularized plate bodies occupy small space and can be stacked, and transportation space can be saved conveniently; and the transportation cost can be saved.