50results about How to "Reduce movement speed" patented technology

The application provides a powder making device, and relates to the technical field of powder making.The powder making device comprises an atomization platform, a powder making torch and two auxiliary torches, the powder making torch and the two auxiliary torches are located above the atomization platform, a plane passing through the atomization platform and the axis of the powder making torch is a first separation plane, a plane passing through the axis of the atomization platform and being perpendicular to the first separation plane is a second separation plane, the powder making torch and the two auxiliary torches are located on different sides of the second separation plane, and the two auxiliary torches are located on the two sides of the first separation plane.The side where the two auxiliary torches are located is a first side, the side where the powder making torch is located is a second side, the direction of a first component force of the force exerted on the liquid drops by the powder making torch and pointing from the second side to the first side is opposite to the direction of a third component force of the resultant force of the forces exerted on the liquid drops by the two auxiliary torches and pointing from the first side to the second side, so that the moving speed of the liquid drops in the horizontal direction is reduced, and the liquid drops are prevented from being blown out of the atomization platform.

The utility model discloses a kind of brown corundum abrasive section sand devices, it is related to a kind of brown corundum abrasive section sand device technical field, including storage box one, the upper end of storage box one is connected with fairing, the lower side of the fairing is installed crushing mechanism, the crushing mechanism is used to crush brown corundum, the inside inclined way of storage box one is fixedly connected with screen, the screen is used to screen after crushing brown corundum, the left end of the left end of conveying pipe one is connected with conveying pipe one in the upside position of the right side surface of storage box one, the right end of the conveying pipe one is connected with conveying mechanism, the conveying mechanism is used to send back larger brown corundum to carry out again crushing, the right side of screen is respectively provided with cam, the upper rotating rod middle part is fixedly connected with rotating roller, the rotating rod on the lower side is fixedly connected with cam, the brown corundum that the rotating roller of rotation is blocked to the right lower rolling of screen, slow down the moving speed of brown corundum, improve the accuracy of screening, improve work efficiency.

The invention relates to the technical field of artificial intelligence, and discloses a method for adaptively adjusting the ratio of an improver based on an AI (artificial intelligence) algorithm, according to the method, multi-field parameters are obtained by using a composite material micro pile embedded with a sensing array, and the evolution trend of a stratum is predicted through a heat-water-force multi-field coupling evolution model. And an artificial intelligence algorithm calculates a modifying agent proportion vector changing along with depth according to a prediction result, and drives a grouting system to adjust the concentration of the active component. And the physical boundary of the micro pile group is utilized to guide a flow field to form a transverse overlapping reinforcing belt. The phase change component in the modifier releases latent heat at a preset temperature, and intervenes in formation heat balance in cooperation with physical heat barrier of the micro piles. And the system executes parameter inversion through measured data and updates an algorithm weight. According to the method, accurate matching of the treatment scheme and stratum heterogeneity is achieved, frost heaving deformation of the foundation is effectively restrained, and the structural stability of the high and cold large-thickness foundation is guaranteed.

This utility model discloses a collision avoidance device and auxiliary ladder for a four-pile jacket foundation of an offshore wind turbine. The device includes jacket legs, with two sets of anti-collision posts fixedly connected to the outer side of the jacket legs. The outer side of each set of anti-collision posts is fixedly connected to the jacket legs via multiple sets of support posts. Anti-collision panels are fixedly connected to the outer side of each set of anti-collision posts away from the support posts. Buffer components are fixedly connected to the upper and lower ends of each set of anti-collision panels and the anti-collision posts. The buffer components include connecting cylinders fixedly connected to the upper and lower ends of the outer side of the anti-collision posts. A telescopic cylinder is slidably connected inside the connecting cylinder. A movable post is fixedly connected to the rear end of the connecting cylinder, and an abutment sleeve is slidably connected to the front end of the movable post. This utility model, through its design, can significantly reduce the impact force of collisions on the jacket foundation, protect it from damage, and improve the structural safety of the four-pile jacket foundation of an offshore wind turbine.

This invention relates to the field of heat energy recovery technology, specifically disclosing a biomass boiler slag heat recovery device, including a receiving unit, a conveying structure, and a heat exchange structure. The conveying structure is fixedly installed on the receiving unit, and the heat exchange structure is fixedly installed on the conveying structure and located above the receiving unit. This invention achieves full and efficient waste heat recovery, realizing multi-level utilization of heat energy. The heat exchange structure has a simple design, is easy to process and assemble, and operates stably, achieving environmentally friendly operation. It takes into account both waste heat recovery and dust control, centrally collects slag residue, maintains a clean working environment, and facilitates subsequent processing. The heat energy utilization method is practical and adaptable to actual industrial heat demand. The structure has strong synergy, and the overall equipment is compact with high space utilization.

This invention belongs to the field of pneumatic control valve technology, specifically providing a pneumatic shut-off valve. The invention aims to solve the problem of excessive noise during operation of existing pneumatic shut-off valves. To this end, the pneumatic shut-off valve of this invention includes a valve body assembly, a valve core assembly, and a sealing ring. This invention defines a distal variable volume cavity and a proximal variable volume cavity located on opposite sides of the axial direction of the movable yoke by having the valve core assembly and the valve body assembly jointly define such cavities. When the valve core assembly moves in one direction along its axial direction, the sealing ring first blocks the annular channel and then opens it. In this way, the initial movement of the valve core assembly is hindered by the air pressure difference, reducing its moment of inertia and speed, thereby weakening the impact force of the valve core assembly on the valve body assembly and reducing the noise during operation of the pneumatic shut-off valve.

The utility model provides a kind of pop rivet packaging equipment, it is related to pop rivet packaging field, and it includes: pop rivet loading box, the side hinged with lid on the upper surface of pop rivet loading box, the inside movable joint of pop rivet loading box has pop rivet insert and put plate, guide piece is provided with multiple, multiple guide pieces are evenly arranged in the inside of pop rivet loading box, the lower end surface of guide piece is fixedly connected with the inner wall bottom of pop rivet loading box, the upper end surface of guide piece is fixedly connected with the lower surface of pop rivet insert and put plate, the inside of guide piece is provided with spring, baffle is provided with two;The scheme, for inserting and placing pop rivet on pop rivet insert and put plate, so that pop rivet can be neatly placed in the inside of pop rivet loading box, when personnel open lid, guide piece is adjusted to elongate under the elastic force of spring, pop rivet insert and put plate are moved up by the elongation adjustment of guide piece, by the moving up of pop rivet insert and put plate, pop rivet can be moved to the top of pop rivet loading box, so that the convenience of operator to take pop rivet can be further improved.

This utility model provides a touch screen hot pressing device, belonging to the technical field of hot pressing devices. It includes a support base and a substrate. The support base is fixedly connected to a base, and a base hole is formed in the side wall of the support base. A pressing plate is fixedly connected to the side wall of the substrate, and the pressing plate corresponds to the position of the base hole. A lifting assembly is fixedly installed on the inner wall of the support base. The lifting assembly includes a piston cylinder, which is fixedly connected to the inner wall of the support base. The advantages of this utility model are: by setting the above-mentioned assembly, the hot pressing speed is gradually reduced during the pressing process to prevent damage to the touch screen body from excessively fast pressing. It also prevents air bubbles from forming after the touch screen is hot-pressed due to excessively fast pressing. At the same time, the airbag blows away dust from the touch screen to prevent dust from affecting the hot pressing process, thereby preventing residual air bubbles and dust inside the touch screen.

The invention discloses a separation and combination method, a separation and combination mechanism, a land vehicle and traffic equipment, and relates to the technical field of traffic transportation. The land vehicle applied by the separation and combination method is provided with a telescopic mechanism, and the telescopic mechanism can stretch out and draw back relative to the land vehicle. The separation and combination method comprises the following steps that the telescopic mechanism is connected with the independent functional body; enabling the telescoping mechanism to telescope relative to the land vehicle at a first speed; the land vehicle moves relative to the independent functional body at a second speed which is opposite to the first speed, so that the moving speed of the independent functional body relative to the ground is reduced through the first speed and the second speed which are opposite in direction, and sliding friction of the independent functional body on the ground is reduced; the acting force of the ground on the structure where the independent function body is in contact with the ground is reduced, the deformation quantity and the friction loss quantity of the structure where the independent function body is in contact with the ground are reduced, and the service life of the structure where the independent function body is in contact with the ground is prolonged.

The invention relates to the technical field of press machines, in particular to an auxiliary brake mechanism of a press machine for metal cellular board production, which comprises a brake driving component, a brake driving component, a hydraulic rod, a brake driving component, a brake driving component and a brake driving component, and is characterized in that the brake driving component is mounted on the press machine; the friction braking assembly is also installed on the press machine and used for conducting friction braking on the hydraulic rod, and the friction braking assembly is driven by the braking driving assembly to move; the plug-in brake assembly is connected with the brake driving assembly, and the brake driving assembly drives the plug-in brake assembly to move so as to brake the hydraulic rod; when a main brake of the press fails or emergency braking is needed, auxiliary braking of the hydraulic rod can be achieved by pushing the braking driving strip in the direction of the press, operation is easy, convenient and rapid, potential safety hazards can be eliminated within the shortest time, the braking driving strip can achieve automatic locking, and the stability of auxiliary braking is guaranteed.

The utility model discloses a biomass fuel feeding device and a combustion system, and relates to the technical field of biomass combustion device optimization. The material lifting device comprises an inclined material lifting device body, the top end of the material lifting device body serves as a discharging end and is communicated with a vertically-downward first material pipe, the bottom end of the first material pipe is communicated with a downwards-inclined second material pipe, the bottom end of the second material pipe serves as a discharging port, an air blower is installed on the side wall of the first material pipe, and the air blower is installed on the side wall of the second material pipe. An air blowing opening of the air blower is horizontally formed, the air blower is arranged at the corner communicating position of the first material pipe and the second material pipe, and the air blowing opening of the air blower is communicated with a material channel formed by communicating the first material pipe and the second material pipe; the purposes that slow feeding can be adapted, and meanwhile blockage caused by untimely discharging is avoided during rapid feeding are achieved.

The invention relates to the technical field of automatic detection of optical fiber preforms, and discloses automatic detection equipment for lathe traction of optical fiber preforms, which comprises a bracket, a melting furnace fixedly connected to the top of the bracket, a clamping system fixedly connected to the top of the bracket, and a traction system slidably connected to the bottom of the bracket, the glass bead falls under gravity to push the sliding block to slide along the sliding groove and drive the moving block to move downwards to stretch the spring, the moving block moves downwards to push the triangular block and the moving rod to move downwards, and the protruding block and the limiting groove are matched to enable the two gears to rotate reversely, drive the gear ring to rotate and drive the connecting rod to open for the glass bead to pass through. The problems that in the falling stage of the generated glass bead, the diameter of the optical fiber is far smaller than that of the glass bead, and the glass bead cannot penetrate through a centering hole of the optical fiber, so that the optical fiber is accumulated and cannot be detected are solved.

The utility model relates to the technical field of LED lighting equipment, and discloses an LED lighting lamp anti-collision buffer device which comprises an outer shell, an inner shell, a buffer assembly and a connecting assembly, the outer shell is a hollow cylinder, and the top and the bottom of the outer shell are both open. According to the anti-collision buffering device for the LED illuminating lamp, through the synergistic effect of the multiple buffering springs, the buffering pad and the damping device, when the LED illuminating lamp is collided, energy generated by collision can be effectively absorbed, collision kinetic energy is converted into elastic potential energy through elastic deformation of the multiple buffering springs, the energy is further buffered and absorbed through the buffering pad, and the anti-collision effect of the LED illuminating lamp is improved. The damping device slows down the moving speed of the inner shell and prolongs the energy absorption time, so that the impact of collision on the LED illuminating lamp is greatly reduced, the internal structure and light-emitting elements of the LED illuminating lamp are protected, the design of the connecting assembly enables the device to be conveniently installed on various street lamp poles or installation supports, and the application range is wide.

The application discloses a filling and sealing machine, which comprises a pair of bottle conveying chain side plates, a buffer device and a can stopping device. The buffer device comprises a buffer plate and a first driving mechanism. The buffer plate is movably inserted into the bottle conveying chain channel and oppositely arranged with the other bottle conveying chain side plate. The fixed end of the first driving mechanism is connected with one bottle conveying chain side plate, and the driving end is connected with the buffer plate, so as to drive the buffer plate to move relative to the other bottle conveying chain side plate. The can stopping device is located at the rear of the buffer device and comprises a can stopping assembly and a second driving mechanism. The can stopping assembly is movably inserted into the bottle conveying chain channel through the bottle conveying chain side plate. The fixed end of the second driving mechanism is connected with the bottle conveying chain side plate, and the driving end is connected with the can stopping assembly, so as to drive the can stopping assembly to be inserted into or out of the bottle conveying chain channel. The application can effectively protect the cans, improve the qualified rate of the cans, improve the filling precision and the qualified rate of the sealing cover, improve the production efficiency and save the production cost.

The utility model provides a kind of mixer for epoxy resin, it is related to mixer field, including shell, stirring subassembly, feed inlet, discharge port and bubble-removing component;Feed inlet and discharge port are communicated with the inner cavity of shell;Stirring subassembly includes stirring shaft and several blades;Blade is fixed with stirring shaft;Blade is located above bubble-removing component;The fixed part of bubble-removing component is closely attached with the side wall of inner cavity;Fixed part is equipped with cavity;The top and bottom of cavity are respectively provided with inflow and outflow, and are communicated with inner cavity;The side wall of cavity is rough, and is provided with several grooves;The extruding piece of bubble-removing component is located in cavity, and is fixed with stirring shaft;Gap is equipped between extruding piece and cavity side wall;Several elastic protruding parts are equipped on extruding piece;Elastic protruding part is attached with the side wall of cavity.The utility model can solve the problem that air may be mixed in epoxy resin during high-speed stirring of prior art, leading to the existence of bubble in the material made of epoxy floor.

The invention relates to a precious metal three-way catalyst as well as a preparation method and application thereof. The precious metal three-way catalyst comprises an alumina carrier, a cerium-zirconium solid solution and an active component M1, metal M2 is also loaded on the alumina carrier; the cerium-zirconium solid solution covers the surface of the alumina carrier, and the active component M1 is dispersed on the surface of the cerium-zirconium solid solution; the active component M1 comprises any one or a combination of at least two of Rh, Ir or Ru; the metal M2 comprises a combination of at least two of Pd, Pt, Rh or Au; the active component M1 and the metal M2 comprise at least three different elements. The noble metal three-way catalyst provided by the invention is used for degrading CO, NOx and CH3OH in an equivalent combustion mode, and is good in low-temperature activity, good in hydrothermal stability, relatively small in performance difference after hydrothermal aging, and wide in application prospect.

The application provides a high-precision punching grinding tool for hardware machining, and relates to the field of hardware machining. The tool comprises a mounting base, a moving frame arranged on the left top surface of the mounting base, a fixed frame fixedly connected to the right top surface of the mounting base, a punching frame fixedly connected to the right of the top surface of the mounting base and located at the right of the moving frame, a rotating clamping shell arranged in the moving frame, a plurality of clamping blocks arranged in the rotating clamping shell, anti-skid pads fixedly connected to the inner walls of the clamping blocks, and a grinding shell fixedly connected to the inner wall of the fixed frame. The hardware pipe can be rotated during punching operation, so that the punching efficiency of the hardware pipe is improved during machining. When the hardware pipe is punched, a plurality of grinding blocks are arranged to sufficiently grind the surface of the hardware pipe, keep the surface of the hardware pipe clean, and increase the punching precision of the hardware pipe.

The present application relates to the technical field of catalyst blank forming technology, in particular to a catalyst blank forming machine, which comprises a base, a drive box is fixedly installed on the top wall of the base, a conveying pipe is fixedly connected to the side wall of the drive box, a crushing box is fixedly connected to the top wall of the conveying pipe and is communicated with the conveying pipe, a feeding hopper which is communicated with the crushing box is fixedly connected to the top wall of the crushing box, a forming pipe is fixedly connected to the end of the conveying pipe away from the drive box, and a cleaning box is arranged below the forming pipe. Through the setting of the rotating mechanism, when the limiting sleeve is separated from the forming pipe, the rotating roller is rotated to drive the mounting frame to rotate, so that the user can select the appropriate forming head, and the production of catalysts with different shapes is facilitated. Since the forming head is spirally installed on the mounting frame, the user can replace more different forming heads, which is conducive to the production of catalyst blanks.

The invention discloses a floating umbrella, and relates to the technical field of emergency escape equipment, the floating umbrella comprises an umbrella rod, a plurality of umbrella ribs uniformly distributed on the top of the umbrella rod and an umbrella cover arranged on the umbrella ribs, and the umbrella ribs can be driven to rotate on the umbrella rod. A plurality of umbrella wing assemblies used for providing upward lifting force when the umbrella cover rotates are evenly distributed on the edge of the umbrella cover, umbrella ribs of each umbrella wing assembly are connected in a one-to-one correspondence mode, and each umbrella wing assembly comprises a plano-convex wing arranged on the upper side of the umbrella cover and an inclined wing arranged on the lower side of the umbrella cover. The position of the higher end of the plano-convex wing corresponds to the position of the lower end of the inclined wing; by driving the umbrella cover to rotate, in the rotating process of the umbrella cover, the umbrella wing assembly on the umbrella cover can provide upward lifting force for the umbrella cover, the floating umbrella can provide upward lifting force when jumping down from a high position, the downward moving speed can be greatly reduced, injury to personnel can be reduced as much as possible, and the survival probability of the personnel in an emergency situation is increased.

This utility model relates to the field of suspended heat treatment conveyor technology and discloses a cooling device for a suspended heat treatment conveyor, including a base and hooks for suspension. A cooling box is fixedly installed on the top of the base. This cooling device for a suspended heat treatment conveyor, through the setting of a control component, allows the output shaft of the motor to drive the threaded rod to rotate within the fixed frame. The moving plate can drive the fixed plate and hooks into the cooling box through the support plate and support rod. When the support block at the top of the support plate abuts against the surface of the fixed block, the support block can be moved downward under force. The fixed plate connected to the support plate surface through the support rod can drive the hook to move longitudinally. Since there are multiple sets of fixed blocks, the support blocks can abut against each other multiple times, so that the fixed plate and hooks can move longitudinally intermittently within the cooling box, making all-round contact with the cold air in each area, avoiding the fixed cooling area and causing uneven cooling.

The utility model discloses a kind of intelligent anti-injury fitness equipment, it is related to intelligent fitness appliance technical field, including main frame and the take-up box of installation in the front end of main frame, buffer mechanism is installed on main frame, take-up box inside is installed with stretching mechanism, and safety guardrail for assisting fitness is installed in the both sides of main frame;The utility model is different through bidirectional screw rod and foot pedal, it is convenient for fitness person to adjust the angle of foot pedal and the position of buffer plate according to height condition, and then when traction rope is retracted to drive seat to move, it can avoid seat to directly impact one end of main frame to make fitness person be injured;Again through the cooperation of speed reducer and speed reduction roller, it is convenient to slow down the speed of traction rope retraction, and then reduce the moving speed of seat;Finally, the problem that existing device lacks perfect and effective anti-injury mechanism and causes fitness person to be injured is solved.

The utility model discloses an automobile seat with a buffering anti-collision rear table plate structure, which comprises an automobile seat body, hinge support rods are hinged to two sides of the back of the automobile seat body, a seat table plate is hinged to the other ends of the hinge support rods, a through groove is formed in the right side of the seat table plate, and the through groove is communicated with the through groove. Mounting grooves are formed in the two sides of the inner wall of the left side of the through groove formed in the right side of the seat table plate, dampers are fixedly mounted in the mounting grooves, buffer plates are mounted at the output ends of the dampers, and telescopic springs surrounding the outer rings of the output ends of the dampers are mounted on the two sides of the left side of each buffer plate. By arranging the buffer plate, the damper, the telescopic spring and the like, a buffer effect is achieved when the seat table plate is impacted, the seat table plate is prevented from being impacted and further damaged, by arranging the baffle, the buffer plate and the like, a certain shielding effect is achieved, meanwhile, the impact stress area of the buffer plate is increased, and the service life of the seat table plate is prolonged. And the injury to passengers caused by collision is reduced.

The utility model discloses a lead block conveying device with damping function, including front conveyer and middle conveyer, the outside of front conveyer is provided with middle conveyer, the outside of front conveyer of middle conveyer one side is provided with rear conveyer, the outside of middle conveyer one side of rear conveyer is provided with left conveyer, the outside of middle conveyer far from left conveyer one side is provided with right conveyer, the top of rear conveyer, left conveyer, right conveyer is close to the top of middle conveyer one side and installs first detection sensor, the top of middle conveyer is installed with second detection sensor, the outer wall of front conveyer is symmetrically installed with two groups of connecting blocks. The utility model not only has realized the lead block conveying of conveying device convenient, has facilitated the elastic position damping of lead block convenient, has slowed down the moving speed of lead block, has facilitated the position of lead block convenient of conveying device, and has facilitated the lead block convenient of water conservancy, has improved the safety of lead block conveying.

The utility model relates to the technical field of garment fabric processing, and discloses a leveling device for garment fabric processing, which comprises a leveling structure, one end of the leveling structure is provided with a rolling structure, the rolling structure comprises a base, and a support component is positioned at the lower end of a sleeve. The first motor is started to drive the two-way screw to rotate, the two vertical plates oppositely move along the sliding grooves to a set distance, then the fixing assembly is operated to fix the sleeve, and then the second motor can be started to drive the fixing assembly and the sleeve to rotate. After winding is completed, a second motor is turned off, a supporting assembly is operated, the supporting assembly supports the sleeve, then a fixing assembly is operated, the sleeve is not fixed by the fixing assembly, a first motor and two vertical plates are reversely driven to move towards the outer side, and the fabric is wound on the outer surface of the sleeve; and therefore, a worker can conveniently take down the sleeve fully wound with the fabric from the supporting assembly.

The utility model discloses a chemical vapor deposition device with tail gas treatment structure relates to chemical vapor deposition technical field, tar is gathered on the condensing plate easily causes the condensing plate to the cooling effect of tail gas to be worse, leads to tar subsequent processing efficiency to be low, does not carry out the recycling of the waste heat in tail gas, and the practicability is low problem, present the following scheme, including chemical vapor deposition furnace body, the tail gas exhaust end of chemical vapor deposition furnace body is equipped with mounting mechanism, the mounting mechanism includes the mounting box and mounting frame through bolt connection on the one side outer wall of chemical vapor deposition furnace body. The utility model can carry out primary filtration treatment to the tail gas that chemical vapor deposition furnace body emits, prevents a large number of tar from being attached on the heat exchange plate and causes the cooling effect to be worse, improves tar processing efficiency, can carry out the recycling of residual heat in tail gas, and the recycled heat is used again, improves the practicability.

The invention discloses an immersed tube tunnel foundation trench flow guiding and dredging device and a construction method, and relates to the technical field of river channel dredging, the immersed tube tunnel foundation trench flow guiding and dredging device comprises a sludge stopping structure placed on the upstream of a riverbed, and a sludge cleaning mechanism for automatically cleaning sludge is further arranged on one side of the sludge stopping structure; the dam on one side of the riverbed is further provided with a sludge collecting tank corresponding to the end of the sludge cleaning mechanism, and the inner side of the sludge collecting tank is further provided with a sludge pump; the sludge stopping structure comprises a triangular plate flow guide body placed on a riverbed, and fixing anchor rods fixedly connected to a dam are arranged at the two ends of the triangular plate flow guide body correspondingly. The modularized silt blocking device capable of being installed on the upstream of the foundation trench and the desilting system integrated at the bottom of the foundation trench are subjected to cross-process integrated design, the problem of silt extrusion which puzzles the industry for a long time is solved, and the device and the method can be directly embedded into an existing pipe sinking construction process and do not need to depend on an ultra-large special ship.

The utility model relates to the technical field of air purification units, and discloses a direct expansion type air purification unit which comprises a unit body, a heat dissipation net is arranged on the side face of the unit body, a cavity is formed in the inner wall of the unit body, and a control assembly is arranged in the cavity. When an electric push rod pushes a movable plate to slide in a cavity, a baffle fixed to the bottom of the movable plate can synchronously move downwards to shield an opening formed after a heat dissipation net is detached, and meanwhile when the movable plate moves, a supporting block connected through a first spring in the movable plate can synchronously move downwards to shield the opening formed after the heat dissipation net is detached. When the protruding block fixed to the inner wall of the cavity abuts against the tangent plane of the supporting block, the supporting block can be extruded multiple times, the moving speed of the moving plate is slowed down, and therefore the exposed opening can be protected, and meanwhile potential safety hazards caused by the too high moving speed are avoided.

This invention belongs to the field of construction project cost management display technology, specifically a construction project cost management display device. It includes a main board with a display screen embedded in its center. Two sets of display panels are symmetrically mounted on the main board, and two sets of suspension shafts are symmetrically connected to the display panels. Rollers are spun onto the suspension shafts. A limiting frame is provided at the upper end of the main board, which limits the rollers, and the rollers rotate around the limiting frame. Pulling the two sets of display panels in opposite directions separates them, thereby opening the display screen. Because the display screen is embedded in the center of the main board, the risk of the display screen being bumped is reduced. Furthermore, during the pulling process, the display panels drive the suspension shafts and rollers to move together, and the rollers rotate along the limiting frame. The cooperation between the rollers and the limiting frame guides the movement of the display panels. The rotation of the rollers not only makes the movement of the display panels smoother but also reduces wear caused by the movement, thus increasing the service life of the device.

The utility model relates to the field of tobacco processing, and discloses a tobacco shred screening plate, a tobacco shred screening groove and a tobacco shred screening vibration groove device, the tobacco shred screening plate comprises a plate body, a screening area with meshes is arranged on the plate body, a blocking piece protruding out of the working face of the plate body is fixedly arranged on the plate body, and the blocking piece is located in the screening area. The blocking piece is used for reducing the moving speed of the tobacco shred materials on the plate body, so that the screening time of the tobacco shred materials is prolonged, and the screening effect of the tobacco shred materials is improved.