93results about How to "Achieve hidden" patented technology

The invention provides a hidden knob screen and a control method thereof.The hidden knob screen comprises a knob screen assembly, a PCB assembly, an electromagnet assembly and an installation part, a groove is formed in the installation part, and the installation part is used for fixing and hiding the knob screen assembly; the PCB component comprises a PCB, an elastic component and a first permanent magnet, the PCB is electrically connected with the knob screen component, the first permanent magnet is fixed on the PCB, one end of the elastic component is connected with the PCB, and the other end of the elastic component is arranged at the bottom of the groove in the mounting component; the electromagnet assembly is arranged at the bottom of the groove in the installation part, and the knob screen assembly is hidden in the groove in the installation part or reset through the magnetic force effect between the first permanent magnet and the electromagnet assembly and the elastic force effect of the elastic part. According to the invention, hiding or resetting of the knob screen assembly is realized, beauty is maintained, and collision damage is prevented.

The invention belongs to the field of wireless communication, and discloses a power wireless local area network information security transmission method and a related device, and the method comprises the steps: obtaining a current physical layer leader sequence and a physical layer header, and carrying out the processing of to-be-transmitted data on the basis of the current physical layer leader sequence and the physical layer header, thereby achieving the dynamic operation of the physical layer leader sequence and the physical layer header. Meanwhile, when data to be transmitted are modulated by adopting an orthogonal frequency division multiplexing technology, a positive value random quantity is introduced to modify a cyclic prefix selection area and length and modify subcarrier parameters, so that the randomness and unpredictability of signal transmission are further improved, and the hiding of physical layer waveform parameters is realized. By dynamically switching the waveform factors of the physical layer, an attacker is difficult to capture and identify the characteristic information of the wireless signal due to the dynamic change, so that the anti-reconnaissance and anti-interception capabilities of the system are greatly improved. A parameter dynamic change rule can be self-formulated for the power wireless local area network, so that the powerful supervision capability of the power industry on the wireless local area network technology can be realized.

The invention provides an iron and steel plant energy supply system flexibility evaluation method considering privacy protection and load uncertainty. The method comprises the following steps: constructing a description model of an energy supply system based on equipment parameters of the energy supply system of an iron and steel plant to be evaluated; acquiring an aggregation flexible domain of energy supply equipment provided by each factory, and constructing a first coupling relationship between a fuel subsystem and a steam subsystem in the energy supply system and a second coupling relationship between the steam subsystem and an electric power subsystem in the energy supply system based on the aggregation flexible domain and the description model; and constructing a constraint condition based on the first coupling relationship and the second coupling relationship, solving the flexibility evaluation objective function based on the constraint condition, and obtaining a flexibility evaluation result of the energy supply system, the flexibility evaluation result reflecting the regulation and control capability of the energy supply system. The uncertainty of the steam and power load of the to-be-evaluated iron and steel plant is an uncertainty parameter in the flexibility evaluation objective function. According to the method, privacy protection and load uncertainty are considered at the same time, and safe and accurate flexibility evaluation can be realized.

The utility model discloses a track lamp with rotary support arm, include: bottom plate, its inside fixedly connected with fixed frame, the outside of fixed frame is provided with mounting bracket, the outside slide coupling of mounting bracket has support arm body, the inside of support arm body is provided with two symmetrical distribution's slide groove, the inside slide coupling of one of ring groove is provided with two symmetrical distribution's limit stop piece, the utility model discloses a limit stop piece, slide frame etc.

This utility model provides a vending machine with an industrial control computer connection structure, including a cabinet body, a cabinet door, and an industrial control computer. The cabinet door is hinged to the edge of the cabinet body's port. A fixing groove is provided on the top of the cabinet body, located on the side of the cabinet body with the port. The industrial control computer is fixedly connected to the fixing groove, and a camera is fixedly connected to the bottom of the industrial control computer. The camera is positioned on the edge of the industrial control computer, with the side of the industrial control computer connected to the camera extending out of the cabinet body's port. When the cabinet door is closed, the camera is obscured. By providing a fixing groove on the top of the cabinet body, the industrial control computer is placed horizontally and fixedly connected within the groove, eliminating the need to reserve space for the industrial control computer in the lightbox area, thus reducing the space occupied in the lightbox area. Simultaneously, directly connecting the camera to the industrial control computer makes the structure more compact, further improving space utilization.

This utility model provides a valve stem concealed ball valve, including a ball valve body. The ball valve body includes: a valve body with several equidistant mating sections arranged circumferentially at its tail end, each mating section having a threaded hole at its center, the axis of the threaded holes being parallel to the axis of the inner hole of the valve body; the mating sections can adjust the installation direction of the ball valve as needed to avoid positional interference; a ball, rotatably disposed in the inner hole of the valve body; a valve stem, rotatably connected to the valve body, one end of which is connected to the ball, and the other end of which protrudes from the valve body; and a valve cap, detachably connected to the valve body, which can cover the other end of the valve stem; the valve cap conceals the exposed part of the valve stem, protecting the ball valve from accidental opening and closing and preventing misoperation of the valve stem.

The utility model relates to the technical field of lamps, in particular to a track driver with an adjustable switch, which comprises a shell, a control module, a hidden conductive structure and a multi-gear switch structure, the hidden conductive structure comprises a rotating assembly and a conductive assembly, the rotating assembly comprises a rotating locking piece, a rotating column, a left movable block, a right movable block and a reset piece, the rotating locking piece is arranged on the rotating column and used for driving the rotating column to rotate, the left movable block and the right movable block are symmetrically arranged on the two sides of the rotating column, and the rotating column is provided with two protruding blocks in a protruding mode; the two protruding blocks are symmetrically arranged on the two sides of the rotating column, the left movable block is provided with a left movable groove, the right movable block is provided with a right movable groove, and the two protruding blocks move in the left movable groove and the right movable groove respectively. The reset piece is located between the left movable block and the right movable block. According to the utility model, the track joint can be hidden in the track, whether the conductive assembly is powered on or not can be rapidly controlled, the structure is simple, and the production cost is low.

The optical light guide structure comprises a first channel and a second channel, the first end of the first channel is used for arranging light-emitting units such as a lamp panel and serves as the light inlet end of the optical light guide structure, and the first end of the second channel is communicated with the second end of the first channel and serves as the light inlet end of the optical light guide structure. The second end is used for arranging a light emitting assembly and serves as the light emitting end of the optical light guide structure, the inner walls of the first channel and the second channel are each provided with a light reflecting coating so that light emitted by the light emitting unit can be reflected to the light emitting end from the light inlet end of the optical light guide structure to be emitted, and the axis of the first channel does not coincide with the axis of the second channel; that is, the light-emitting end and the light-entering end of the optical light guide structure are non-linearly communicated through the first channel and the second channel, so that the light-emitting unit and the light-emitting assembly are arranged in a staggered mode, and hiding of the light-emitting unit is achieved. According to the optical light guide structure, the light outlet end and the light inlet end are arranged more freely, and the optical light guide structure can meet the spatial layout requirements of different vehicle lamps.

The utility model relates to the technical field of pcd cutter machining, and discloses a clamping device for pcd cutter production, which comprises a base and a clamping device main body, the clamping device main body is arranged on the upper surface of the base, the lower surface of the base is provided with a bottom groove, a rotating shaft is fixedly connected between the inner walls of the front side and the rear side of the bottom groove, and the rotating shaft is fixedly connected with the clamping device main body. The clamping device comprises a rotating shaft, the rotating shaft is rotationally sleeved with four connecting blocks through bearings, two fixing blocks are fixedly connected to the outer surfaces of the sides, away from the rotating shaft, of the four connecting blocks, a moving mechanism is arranged on the two fixing blocks, the two fixing blocks are arranged in a mirror image mode, and the two fixing blocks are arranged in an inclined mode. The wheel can be hidden by rotating the handle, a plurality of bolts do not need to be rotated, manpower is saved, meanwhile, the production efficiency of the pcd cutter can be improved, and then the practicability of the clamping device is improved.

The knapsack type elevator car structure comprises a knapsack frame and a car assembly, the car assembly comprises four stand columns, a left side plate, a right side plate, a back plate and a car roof, and mounting grooves are formed in the inner walls of the two right-angle sides of the four stand columns correspondingly; the two ends of the left side plate, the right side plate and the back plate in the width direction are assembled in the mounting grooves of the corresponding stand columns respectively, and the inner side of the corner of each stand column is detachably connected with a positioning pressing plate. The car roof is detachably connected to the tops of the four stand columns, the rear side wall of the car roof is detachably connected with the upper end of the backpack frame, and a horizontal limiting mechanism is further arranged between the mounting frame and the back plate. According to the knapsack type elevator car structure and the installation method, the structure is simple, installation and maintenance are convenient, the connecting structure between the car structure and the knapsack frame is stable, and safety is high.

The application relates to the technical field of solar cells, and provides a back contact cell assembly and a photovoltaic system. The back contact cell assembly is composed of a first cell string group and a second cell string group connected in series. Each cell string group comprises three parallel cell strings. The cell pieces in the cell strings are one-third cut cell pieces. A first bus bar serves as a positive output end of the assembly, a second bus bar serves as a negative output end of the assembly, and a third bus bar connects the first cell string group and the second cell string group in series. At least one of the three bus bars is arranged on the back surface of the cell pieces of the cell strings. The first cell string group and the second cell string group are respectively connected in parallel with a first bypass diode and a second bypass diode through a conductive connecting piece. In this way, the power loss of the assembly can be reduced, and the power generation per unit area of the back contact cell assembly is improved.

This invention discloses a biosafety cabinet with an ultraviolet (UV) disinfection lamp, comprising a cabinet body and an air filtration device disposed above the cabinet body. Below the air filtration device is a working area. A sliding window is provided on the front side of the cabinet body. The key feature is that an UV lamp device is provided within the working area. The UV lamp device includes a flip-up plate, a traction mechanism, and a mounting compartment. A partition chamber is provided between the inner side panel of the working area and the back panel of the cabinet body. The mounting compartment is located within the partition chamber, with one end hinged to the inner side panel via the flip-up plate, and the other end connected to the sliding window via the traction mechanism. The UV lamp is disposed within the mounting compartment and gains the freedom to rotate from the partition chamber to the working area through the rotation of the flip-up plate. In this invention, the UV lamp switches between the partition chamber and the working area via the mounting compartment, avoiding interference with airflow and improving the safety of UV disinfection.

The utility model relates to the technical field of station lamp box hydraulic rod hiding structures, in particular to a station lamp box hydraulic rod hiding structure which comprises a lamp box body, outer frames, a transparent acrylic plate, a lamp assembly, a hiding assembly and an auxiliary assembly. A transparent acrylic plate is fixedly arranged in the outer frame, and lamp assemblies are fixedly arranged on the periphery of the interior of the lamp box body. The installation groove is formed in the contact position of the lamp box body and the outer frame, the rotatable connecting piece is fixedly arranged in the installation groove of the lamp box body, the rotatable fixing piece at the other end of the lamp box body is fixedly arranged in the inner side groove of the outer frame, hiding of the hydraulic rod sleeve and the hydraulic telescopic rod is achieved, and it is guaranteed that when a light source is turned on at night, the lamp box body is not damaged. And the hydraulic rod sleeve and the hydraulic telescopic rod cannot block an internal light source, so that the emitted light source and the appearance are more attractive.

The invention discloses a multi-image hiding encryption method based on deep learning and ghost imaging. Comprising the following steps: 1, converting a secret image into a spectrogram through two-dimensional fast Fourier transform (FFT); 2, a designed equal-resolution image steganography model ERIH-Net is utilized, the spectrogram and the carrier image serve as input of the ERIH-Net model, and a secret-containing image is generated; 3, sampling the secret-containing image for multiple times through a ghost imaging system to obtain a BD value sequence of the one-dimensional bucket detector; 4, reconstructing a secret-containing image by using the light field information re-modulated by the ghost imaging system and the acquired BD value through a correlation reconstruction algorithm; 5, taking the secret-containing image as the input of an ERIH-Net model image extraction sub-network, and extracting a frequency spectrum image; and 6, decrypting the secret image through two-dimensional inverse Fourier transform (IFFT). According to the invention, the security and information hiding capacity of the optical image encryption system can be improved; by cutting part of high-frequency information in the spectrogram, the transmission quantity of the ciphertext can be reduced.

The utility model relates to the field of electric bed frame, especially four drive integrated formula electric bed frame. Including one side pipe, two drive structures, every side pipe is installed with two drive structures integratively, in this structure, the internal drive piece is directly integrated and installed in the inside installation channel of side pipe, thereby realizes the integrated setting of drive motor and internal drive piece before the delivery of bed frame, can follow the whole transportation of bed frame, and the transportation space occupancy can be greatly reduced, and a large amount of transportation cost can be saved in the mass production transportation process, and the drive motor and internal drive piece also do not need to prepare the storage and transportation box to pack to carry out the split transportation, when transferring to the customer side, the welding and assembly of drive structure are not needed, only need to complete the assembly of subsequent bed frame and bed board through the rotation part, and the assembly is simple and quick.

The utility model discloses a hidden single-spindle detection device, which comprises a steel collar plate, a mounting hole is arranged at the junction of the top surface and the side surface of the steel collar plate, a monitor is fixed in the mounting hole, a fixed groove frame is arranged below the mounting hole, and the fixed groove frame is fixed on the top surface of the steel collar plate and the side surface of the steel collar plate. The fixing groove frame is located below the top face of the steel collar plate and on the inner side of the side face of the steel collar plate. The beneficial effects of the utility model are that the installation holes are arranged at the edge of the top surface of the steel collar plate, and the monitor is fixed in the installation holes, so that the main body of the monitor is hidden below the steel collar plate and at the inner side of the side surface of the steel collar plate, and the side surface of the steel collar plate is prevented from extending in the horizontal direction; and more space is provided for installation of an automatic broken yarn splicing device and installation of a dust cleaning device.

The utility model discloses a device with a drawer type external connector interface, which comprises a machine body, a pressing interface assembly and a limiting piece, and adopts the technical scheme that the pressing interface assembly is arranged in the machine body in a sliding manner, so that a plurality of interfaces are hidden in the machine body, and the limiting piece is arranged in the machine body in a sliding manner; when the interfaces need to be used, the interface pressing assembly is pressed, limitation of the limiting piece on the interface pressing assembly is relieved, the interface pressing assembly is made to move and stretch out of the machine body, a user can conveniently use the multiple exposed interfaces, and the convenience of using the interfaces is guaranteed.

The utility model provides a handle, which belongs to the technical field of doors and windows and comprises a handle shell, a handle body, a handle cover and a handle body. The first side of the first handle piece is rotatably connected to the interior of the first containing groove; the elastic piece is connected between the first handle piece and the first containing groove, and the elastic piece is used for providing elastic force to drive the second side of the first handle piece to rotate to be separated from the first containing groove; wherein a first limiting part is arranged on the side portion of the first handle piece, a second limiting part matched with the first limiting part is arranged on the side portion of the first containing groove, and the first limiting part is used for being elastically limited with the second limiting part. According to the utility model, the handle is provided for a user, and the handle can be hidden in the accommodating groove when not in use through the design of rotating and popping up, so that the space is effectively saved, and the handle is particularly suitable for a narrow environment or an environment in which doors and windows need to be prevented from being opened outwards.

The utility model discloses an electric steamer which comprises a base, a steamer assembly and an external water tank, the steamer assembly and the external water tank are arranged on the base, the base comprises a water storage cavity, a steam generation cavity and a heating piece arranged at the bottom of the steam generation cavity, and a separation rib is arranged between the water storage cavity and the steam generation cavity. The external water tank comprises a water supplementing cavity, a two-way water passing channel is arranged between the water storage cavity and the water supplementing cavity, and a one-way water passing channel allowing water flow to flow from the water supplementing cavity to the steam generating cavity is arranged between the water supplementing cavity and the steam generating cavity. A floater is arranged in the one-way water passing channel and floats along with the water level so as to control on-off of the one-way water passing channel. According to the electric steamer, pollutants entering the one-way water passing channel can be effectively reduced, so that the influence of the pollutants on the floating of the floater is reduced, and the service life of the floater is effectively prolonged.

The utility model provides an electronic equipment protective shell which comprises a shell and a containing space defined by the shell, the shell comprises a first part arranged around the containing space and a second part and a third part located on one side of the containing space, the second part is connected with the first part, and the shell is provided with a containing part corresponding to the third part. And the third part is movably arranged to open or hide the accommodating part. According to the application, the storage part for storing the card is arranged on the shell, so that the card can be directly stored on the shell without arranging a card bag structure, in addition, the third part is movably arranged to open or hide the storage part, a user can take the card from the storage part when the third part is opened, and the storage and hiding of the card are realized when the third part is hidden; the appearance of the protective shell is not affected, and convenience is brought to users.

The top ends of two folding connecting rods are hinged to the two sides of the rear end of a cushion framework respectively, the bottom ends of the two folding connecting rods are hinged to the front side wall of a storage pit respectively, and the lower middle portions of the folding connecting rods are both located in the storage pit; when the buckle is pulled backwards, the floor lock and the backrest lock can be unlocked, after unlocking, the buckle can drive the cushion framework to overturn forwards relative to the folding connecting rod to be folded, meanwhile, the folding connecting rod is driven to overturn backwards relative to a hinge point on the storage pit, and after the buckle is released, the folding connecting rod can be folded. And the backrest framework can be overturned forwards under the action of self gravity until the backrest framework is folded with the cushion framework. The automobile seat can be wholly and completely rotated into the storage pit, and the storage pit can be covered by the pit cover plate, so that the automobile seat can be completely hidden, and the use space of the back row of an automobile is greatly expanded.

The utility model belongs to the technical field of bluetooth sound equipment, especially relates to a bluetooth sound equipment with mobile phone support function. A bluetooth sound equipment with mobile phone support function, include: the casing has the bottom surface and the first side and the second side of front and back setting, the first side is constituted to be used for the support surface of supporting mobile phone, the loudspeaker is set in the casing, its play direction is towards the second side, is equipped with a plurality of sound holes that the casing inside and outside are communicated on the second side, the magnetic attraction spare is set on the first side for adsorbing mobile phone, the folding support is established in the bottom of the casing, at least includes connecting rod and movable plate, both ends of connecting rod are respectively with the bottom of casing and movable plate damping articulates, and is equipped with the self -locking structure of folding support between connecting rod and movable plate and the bottom of casing, the utility model has the mobile phone support of optimizing bluetooth sound equipment, makes bluetooth sound equipment more simple on the structure advantage.

The utility model discloses an experiment table cabinet hidden type hinge which comprises a first blade, the first blade comprises a first screw hole plate and a first hinge, an embedding table is arranged between the first screw hole plate and the first hinge in a padding mode, and the embedding table is used for being embedded into a groove with the corresponding size of a cabinet body so that the first screw hole plate can be located on the inner side of the cabinet body. According to the hidden hinge of the experiment table, the structural design that the embedded table is additionally arranged on the first blade is adopted, so that when the hinge is installed, the embedded table can be embedded into a groove formed in a cabinet body in advance, the first screw hole plate can be hidden on the inner side of the cabinet body, and a screw is hit on the inner side of the cabinet body through a screw hole in the first screw hole plate; the effect that the first screw hole plate and the connecting screws are hidden in the experiment table cabinet body is achieved, various rusting, deformation, corrosion and aging conditions of the connecting part of the hinge and the cabinet body can be remarkably weakened, and the attractiveness of the hinge installed on the experiment table is improved.

The utility model provides a kind of handle structure and vehicle, it is related to vehicle parts technical field.The handle structure includes box body and cover and is located the cover plate of the box body opening, the box body is configured as by fastener connection in the inner side of vehicle back door, the fastener is configured as from the inner cavity of the box body, and the part of insertion and connection is inserted and connected in the vehicle back door;The box body is rotatably connected with the cover plate, to allow the cover plate to overturn relative to the box body, open or cover the opening of the box body.By fastener being hidden in the inner cavity of box body and cover plate, avoid affecting the appearance of vehicle back door and the connection reliability of handle structure.

This utility model relates to the field of aluminum profile splicing and assembly technology, and in particular to a quick-installation aluminum profile assembly, comprising two aluminum profiles stacked from top to bottom. Two horizontally spaced locking strips are inserted into the cavities at the mating surfaces of the two aluminum profiles. Locking screws are screwed into threaded holes on both sides of each aluminum profile. Each locking screw is used to push outwards a mating elastic locking element and lock it to the corresponding locking strip. This assembly can quickly stack and fix two adjacent aluminum profiles as needed. During fixing, corresponding elastic locking elements and locking strips can be pre-installed as needed. Then, by screwing in the corresponding locking screws, the elastic locking elements are pushed and aligned with the locking strips, ensuring the quick-installation assembly of the two adjacent aluminum profiles and the stability after installation.

The utility model relates to a television cabinet with sound, including television cabinet body, the lower end surface of television cabinet body is provided with base, the length of base is shorter than the length of television cabinet body, and television cabinet body at least partial stretches out base, the lower end surface of television cabinet body stretches out base portion and is equipped with first openwork window, is installed with bass horn at first openwork window, and the included angle of bass horn and ground is 0-30 DEG. Through the inclination installation of bass horn in the lower end of television cabinet body, the sound of bass horn is transmitted to the listening position through the ground reflection, that is, the hiding of bass horn is realized, and the bass atmosphere is created. Through hiding bass horn, front sound and sky sound in the television cabinet, the land occupation of the sound system is reduced, the cleanness of the family space is improved, the sound system is adjusted conveniently, and the maintenance and reconstruction of the later period are facilitated.

The utility model relates to the technical field of municipal engineering, in particular to a rainwater pipe culvert river-entering structure under an urban complex embankment environment, which comprises embankments, an overhaul well and a water outlet well, the embankments are arranged on two sides of a river channel, and rainwater pipe culverts are embedded in the embankments; the overhaul well is arranged in the embankment and located at the joint of the embankment and the river channel, and the rainwater pipe culvert is communicated with the upper portion of the overhaul well; the water outlet well is arranged in the river channel, and the water outlet well is communicated with the lower part of the overhaul well through a drainage section; the rainwater pipe culvert is provided with the overhaul well and the water outlet well, the outlet of the rainwater pipe culvert is flexibly adjusted by adjusting the position of the water outlet well under the condition that an original pipeline is not adjusted, meanwhile, the overhaul well has the energy dissipation function, the water flow state can be adjusted, direct scouring of water flow at the outlet to an original embankment foot in the drainage period is avoided, and hiding of an estuary is achieved; and the overall landscape effect is improved.

The utility model relates to the technical field of water conservancy projects, in particular to a hidden type water conservancy project protection dike which is internally provided with a main box body, a guide cavity connected with the outside is arranged in the main box body, a feeding rack capable of moving front and back is arranged in the guide cavity, a drainage cavity with an upward opening is arranged in the feeding rack, and a water level sensor is fixedly arranged on the rear wall of the drainage cavity. A filter screen with a filtering function is fixedly arranged in the drainage cavity, a water suction pump is fixedly arranged on the front wall of the drainage cavity, a one-way valve is fixedly arranged in the front wall of the drainage cavity, and a power rack is fixedly arranged on the inclined end face of the front side of the feeding rack, so that the dam protection height is increased, and it is ensured that rising water flow can be coped with in time; the protective embankment has the advantages that the protective embankment is provided with the buffer plate, so that protection of surrounding personnel and property is guaranteed, practicability and flexibility of the protective embankment are guaranteed, the buffer plate is reset after use, hiding of the buffer plate is guaranteed, and view of the surrounding personnel to landscapes is not affected.

The utility model discloses a light partition board convenient to install, which comprises a partition board body and an installation mechanism, and belongs to the technical field of partition boards. A limiting block on one side of a connecting groove B corresponds to one side of a connecting groove A, one side of the connecting groove A abuts against the limiting block to compress a spring A to drive a connecting column to slide towards the interior of a partition board body, a fixing block corresponds to a containing groove B in the connecting groove A, the fixing block is clamped into the containing groove B, and when the fixing block is connected with the containing groove B in a matched mode, the fixing block is clamped into the containing groove B; limiting blocks and connecting columns enter a containing groove A under the action of springs A. Through the action of the installation mechanism and the protection assembly, the surface and the side edges of the installed partition board body are kept flat, and the situation that the partition board body cannot be completely and comprehensively laid on a wall, and the use effect of the partition board is affected is avoided. And the living quality of the building is reduced.

The invention discloses a hidden control screen for laboratory management, and relates to the technical field of laboratory screen platform equipment.The hidden control screen comprises a control screen body and further comprises a vertical plate, a shielding plate, a storage box, an n-shaped experiment chair, an operation mechanism, an inclination mechanism, a turnover mechanism, a first sliding mechanism and a second sliding mechanism; the movable rod is driven by the operation mechanism to slide, the shielding plate is driven by the turnover mechanism to rotate, the storage box is driven by the first sliding mechanism to slide, the first sliding mechanism is driven by the turnover mechanism to work, the first sliding mechanism can drive the control screen to move up and down, and the control screen can incline by a certain angle in the moving process; the control screen can be driven by the first sliding mechanism to be stored between the two vertical plates, the turnover mechanism turns over the shielding plate downwards while the control screen is lowered, and complete hiding of the control screen is achieved.