41results about How to "Realize requirements" patented technology

The invention discloses a power cable intelligent segmentation management method and system, and belongs to the field of power supply management, and the method comprises the steps: setting a first time sequence segmentation influence coefficient and a second time sequence segmentation influence coefficient, and building a dynamic decision node; acquiring cable layout information of a to-be-monitored power cable; configuring a backtracking time window, and establishing backtracking basic parameters of the power cable to be monitored; according to the backtracking basic parameters, adaptive analysis of balancing task requirements and balancing climate influences is carried out, and a first clustering constraint is generated based on an adaptive analysis result; and establishing a first clustering constraint according to the cable layout information, establishing a second clustering constraint according to the cable layout information, establishing a dynamic segmentation strategy according to the first clustering constraint, the second clustering constraint and the dynamic decision node, allocating an edge joint early warning network, and executing segmentation management based on the edge joint early warning network. A segmentation strategy is dynamically generated based on multi-dimensional data, precise and intelligent early warning and management of the power cable are realized, and the early warning response speed and accuracy are improved.

The application provides a steel coil spray printing control method and system, the method comprising: reading a spray printing mode field to a data area according to rolling plan information, the spray printing mode field being determined according to a steel coil order contract number; generating hot spray printing machine setting information according to the spray printing mode field, and sending the hot spray printing machine setting information to a control unit of a steel coil transport area when a finishing F1 rack bites steel; associating the spray printing mode field corresponding to the steel coil with a coil transport trolley through the control unit, so as to track the position of the steel coil based on the spray printing mode field; when the steel coil is conveyed to a preset position, determining steel coil spray printing information according to the spray printing mode field to control a hot spray printing machine to complete steel coil information spray printing. The application can meet the demand of different spray printing information of the steel coil, reduce the consumption of steel coil hot spray paint auxiliary materials, reduce the fixed cost of per ton of steel, and reduce the failure rate of the mechanical arm of the hot spray printing machine.

The application provides a micro-robot multiple-release short section based on pin and groove reversing, which comprises a driving mechanism, a reversing mechanism and a releasing mechanism; the reversing mechanism comprises a reversing mechanism shell, a rotating body is nested in the reversing mechanism shell in a rotating manner, and a rotating pin connecting body is nested in the rotating body; a plurality of straight guide grooves are formed on the inner surface of the rotating body along the axial direction of the rotating body, and a plurality of spiral grooves are formed on the inner surface of the rotating body, each spiral groove being located between two adjacent straight guide grooves; a plurality of rotating pins are arranged on the outer surface of the rotating pin connecting body; the plurality of rotating pins are configured to perform radial expansion and contraction movement along the rotating pin connecting body; the releasing mechanism comprises an upper end cover, and a load cabin is nested in the upper end cover in a rotating manner; a plurality of micro-robot storage cavities are formed on the outer periphery of the load cabin, and a release port is formed in the upper end cover. The micro-robot is released multiple times, the full wellbore temperature and pressure profile is dynamically monitored, and the timeliness of data is improved.

The application discloses a gradient cemented carbide with solid solution change distribution and a preparation method thereof. The gradient cemented carbide comprises a poor-FCC high-toughness area, a rich-FCC high-hardness area and a core area from outside to inside. The thickness of the poor-FCC high-toughness area is denoted as L1, the thickness of the rich-FCC high-hardness area is denoted as L2, the ratio of L2 to L1 is 1.1-5:1, and the ratio of the EBSD calibration area of the rich-FCC high-hardness area to the core area is 1.1-3:1. The preparation method comprises preparing raw materials according to the elements and proportions of the gradient cemented carbide, pressing forming and alloy sintering. The gradient cemented carbide can realize the double high characteristics of the high-toughness surface layer and the high-hardness subsurface layer at the same time without changing the alloy matrix component system and the hard phase particle size system, thereby significantly improving the high-temperature plastic deformation resistance of the cutter.

The application relates to a full polarization high-gain wide-band conformal antenna, belongs to the technical field of electromagnetic propagation and energy collection, and particularly relates to a full polarization high-gain wide-band conformal antenna and a small-size rectifier circuit. The application conforms to the inner wall of an energy collection box by using an improved structure simple Yagi antenna, expands the working frequency band range of the antenna, is convenient for integration with equipment, and reduces the size of the energy collection device. The application designs an ultra-wide-band and compact structure quadrature coupler which is integrated at the bottom of the device. The quadrature coupler can realize 3db coupling in a wide frequency band range, evenly divides the energy received by each port into two paths, and solves the problem of low efficiency caused by the imbalance of the rectifier link in the prior art. The rectifier is small in size, has a good joint simulation effect, and is convenient for integration. The antenna can work in different radio frequencies and power ranges.

The utility model discloses a differential mechanism half axle gear gap detection device, its characterized in that: including work table, measuring mechanism, compacting mechanism, thrust reset mechanism, open mechanism, with the upper positioning assembly and lower positioning assembly of differential mechanism cooperation. The utility model structure has compact overall structure, and strong compatibility, and convenient and fast operation, and adjustment function is convenient, can be suitable for a variety of model differential mechanism half axle gear gap detection, saves production manufacturing cost, and has higher equipment practicality and comprehensive utilization rate simultaneously.

The application relates to the field of intelligent control seeding test in modern agriculture, and discloses an intelligent seed pneumatic conveying characteristic test platform, which comprises a rack, a centralized seed sowing device, a pneumatic pipeline conveying device, a uniform seed distributing device, a movable mounting bracket and a PLC control system. The centralized seed sowing device comprises a centralized seed sowing wheel, and the centralized seed sowing wheel comprises a plurality of seed sowing rings. The uniform seed distributing device comprises a uniform seed distributing device support, a second seed distributing pipe, a pressure sensor, an annular grating sensor, various seed distributing channels, a weighing sensor and a uniform seed distributor. The PLC control system is connected with the sensor. The pneumatic live seeding and the uniform minute test can be carried out, and the pneumatic live seeding technology and the uniform seed distributing technology are provided with reference for research.

This utility model relates to the field of medicine delivery vehicle technology, and in particular to a medicine delivery vehicle with a classified medicine storage structure. It includes a mobile vehicle body, medicine storage boxes, fixed partitions, movable partitions, guide blocks, fixed blocks, ratchet plates, positioning rods, positioning rings, return springs, bottled medicine racks, and boxed medicine racks. The mobile vehicle body has two sets of medicine storage boxes inside. Fixed partitions are fixedly installed inside each medicine storage box, and movable partitions are installed inside each medicine storage box. A ratchet plate is fixedly installed on the rear side wall of each medicine storage box. A positioning rod is installed inside the fixed block, and a return spring is fixedly installed at the upper end of the positioning ring. Two sets of bottled medicine racks are installed on both sides of the top of the movable partition, and multiple sets of boxed medicine racks are installed on both sides of the inside of each medicine storage box. This medicine delivery vehicle with a classified medicine storage structure, during use, not only ensures the safe storage of medicines by flexibly adjusting the storage space and combining the use of bottled and boxed medicine racks, but also improves the efficiency of medicine retrieval and placement.

The invention discloses a centrifugal air conditioner driven by low-temperature waste heat and a water heating device, and relates to the field of low-temperature waste heat and renewable clean energy utilization. The device comprises a steam generator, a centrifugal compressor, a lubricating oil tank, a condenser, an evaporator, a lubricating oil pump, a refrigerant pump, a heat source pump, an expansion valve, a constant-temperature energy storage water tank, a chilled water tank, a cooling water tank, a cold water supply pump, a heat storage water tank heat exchange coil inlet, an auxiliary electric heater, a sanitary hot water booster pump, a cold and hot water circulating pump, a cooling water circulating pump, a cold water pipeline and a hot water pipeline. The electric valve and the electric control system are arranged, external waste heat energy can be recycled and converted into indispensable cold and heat sources and sanitary hot water in daily production and life by adjusting starting and stopping of the circulating pump and closing of the valve in the corresponding operation mode through the control system, energy is saved, and meanwhile the life quality of people is improved.

The application relates to the technical field of computers and discloses a wireless micro-current tactile feedback game control device interaction method and system, which comprises the following steps: constructing an interaction feature matrix of user operation data and game scene data; generating a wireless micro-current control signal of a game control device through the interaction feature matrix and determining a body surface stimulation partition of the game control device; setting a stimulation combination mode of the wireless micro-current control signal and the body surface stimulation partition according to a game scene type and user operation preferences; extracting a response delay parameter and a stimulation coverage index in the stimulation combination mode, calculating a stimulation deviation value of the wireless micro-current control signal; calculating a tactile feedback threshold value corresponding to the game control device by using the stimulation deviation value; and generating a micro-current tactile feedback scheme of the game control device by combining the stimulation combination mode and the tactile feedback threshold value. The application can significantly improve the game immersion of users.

The utility model discloses an antenna and central control equipment, the antenna includes flexible printed circuit board and four PIFA radiation branch, four PIFA radiation branch is centrally symmetric distribution setting in the four sides of flexible printed circuit board, and PIFA radiation branch includes antenna arm and connecting arm, and the antenna arm includes the multiple vertical rising section and multiple horizontal extension section that form square wave waveform structure alternately in proper order, and the first end of connecting arm is connected with the horizontal extension section of the first end of square wave waveform structure, and the second end of connecting arm extends to the middle of four PIFA radiation branch. The antenna through setting radiation branch on flexible printed circuit board makes antenna can reduce the thickness and volume of overall antenna through the flexibility and light and thin nature of flexible printed circuit board, and it is easier to adapt to different installation space, realizes miniaturization and integration demand while improving positioning accuracy.

The utility model discloses a bathtub which comprises a body, the body is provided with a containing cavity, the bathtub further comprises a rotating frame and a massage assembly, the rotating frame and the massage assembly are located in the containing cavity, the massage assembly is provided with a massage part, and the rotating frame rotates around a horizontal first rotating axis relative to the body. The massage assembly is rotationally connected with the rotating frame so as to change the direction of the massage part. By the adoption of the technical scheme, the feet and the shanks can be massaged.

The present invention discloses an institutional sub-account system, which does not need to implement business functions separately, and can directly reuse the system architecture of supporting institutional sub-accounts for counter business processing, thereby ensuring the integrity and consistency of functions and reducing the cost of subsequent maintenance. The technical solution is as follows: the sub-account system is separated from the open counter system and has a flexible deployment method. For institutional users, it is not necessary to deploy the counter in their own environment, and they can choose to connect to the terminal only for transactions. The system of the present invention does not implement business processing separately, but adopts the business processing dynamic library in the counter system to reduce the cost of maintaining the business processing logic. When the business is updated, only the business processing dynamic library needs to be updated.

The utility model discloses a water pushing device for mandarin fish culture and belongs to the technical field of mandarin fish culture. The device comprises a vertical moving mechanism, a mounting frame, a horizontal moving mechanism and a water pushing mechanism, a moving part of the vertical moving mechanism is fixedly connected with the mounting frame, and the vertical moving mechanism is used for being fixed to a to-be-mounted object; the horizontal moving mechanism is mounted on the mounting frame, the mounting frame is slidably connected with the water pushing mechanism, and a moving part of the horizontal moving mechanism is fixedly connected with the water pushing mechanism. In the device, the installation depth of the water pushing mechanism and the distance from the water pushing mechanism to the center of the fishpond can be adjusted, water flow distribution can be remarkably optimized, water quality management can be improved, the water circulation efficiency and oxygen distribution can be improved, and meanwhile the requirements of different breeding stages are met.

The present disclosure provides a gravity-assisted heat dissipation device, comprising an evaporator, a horizontal pipe, a vertical pipe and a condenser; the evaporator is arranged above and in contact with a component to be cooled, so as to vaporize working medium in the evaporator by using heat of the component to be cooled; an outlet of the evaporator is connected with a first connecting end of the horizontal pipe; a second connecting end of the horizontal pipe is connected with a first connecting end of the vertical pipe; the horizontal pipe is used for transmitting working medium; the distance between the first connecting end of the horizontal pipe and a horizontal plane is less than the distance between the second connecting end of the horizontal pipe and the horizontal plane; a second connecting end of the vertical pipe is connected with a bottom of the condenser; the vertical pipe is used for transmitting working medium; the distance between the second connecting end of the vertical pipe and the horizontal plane is greater than the distance between the first connecting end of the vertical pipe and the horizontal plane; and the condenser is used for liquefying working medium in a vaporized state.

The invention discloses an OHT turning control system and a control method, a straight track upper layer sky rail and a turning track lower layer sky rail are arranged below an OHT track upper cover plate, a walking module comprises rollers and a reversing slide rail, a module shell moves along an OHT track through the cooperation of the rollers and the lower slide rail, the upper end of the module shell is in an angular slope shape, and the lower end of the module shell is connected with the reversing slide rail. The two sets of reversing sliding rails are fixed to the two sides of the triangular inclined face, each set of reversing sliding rail is provided with a reversing sliding block in a sliding connection mode, the reversing sliding blocks are driven by a driving motor through synchronous gears to ascend or descend synchronously, reversing guide wheels are arranged on the reversing sliding blocks, and when the reversing sliding blocks are in the high position, the reversing guide wheels are in matched sliding connection with the inner side of the upper-layer sky rail. When the reversing slide block is in a low position, the reversing guide wheel is in matched sliding connection with the outer side of the lower-layer sky rail; through the combination of the sliding blocks and the sliding rails on the surface of the OHT trolley, the height of the reversing guide wheels and the change of the positions of the inner side and the outer side are adjusted, so that the walking direction of the OHT trolley is switched, the guide wheels obtain enough supporting force, and high-speed stable turning can be achieved.

The tail gas purification and preheating control method comprises the following steps that the tail gas temperature of tail gas entering and / or exhausted out of a combustion unit is obtained, and the combustion unit is connected between an exhaust port of an engine and an air inlet of an absorption refrigeration system; acquiring working condition information of the engine; judging whether at least one of a preheating condition and a purification condition is met or not according to the tail gas temperature and the working condition information, and if yes, starting a combustion unit; if not, the current state is kept; wherein the preheating condition is that the temperature of the tail gas is smaller than or equal to the low-temperature critical temperature, and the low-temperature critical temperature ranges from 90 DEG C to 320 DEG C; the purification condition is that the working condition information indicates that the engine is in an instant acceleration working condition. According to the control method, whether the tail gas temperature reaches the low-temperature critical temperature or not and the working condition of the engine serve as the judgment basis, comprehensive recognition of the preheating requirement and the purification requirement is achieved, and a foundation is provided for differential control.

The utility model discloses a gynecological examination couch with a heating function, which comprises an examination couch body, the examination couch body comprises a couch body and a mattress, the mattress is arranged at the top of the couch body, and fixing plates are arranged on the left side and the right side of the couch body. The two sets of heating plates are embedded into the mattress, different areas of the mattress are independently heated, the requirements of different patients are met, the fitness is high, the heating plates are more convenient to mount and dismount through cooperation of a pulling assembly and a positioning assembly, medical staff can flexibly operate according to examination requirements, and meanwhile, the heating plates are more convenient to mount and dismount. The design of a positioning groove, a limiting column and a supporting rod ensures the stability of the heating plate, displacement or looseness is prevented, the safety and reliability of the device are improved, the whole structure gives consideration to the heating effect and operation convenience, a warm and comfortable examination environment is provided for patients, and the individual requirements of different patients are met.

This utility model relates to the technical field of fruit wine brewing catalysts, and discloses a hot-cold alternating catalyst for fruit wine brewing, including a catalytic tank. An inlet is fixedly connected to the upper side of the catalytic tank. A spiral guide vane is fixedly connected inside the catalytic tank. A hot-cold circulation assembly is installed outside the catalytic tank. This assembly is used to activate enzyme activity and yeast metabolism in the fruit wine, promoting the release of aroma substances and the formation of flavor complexity. A heat exchange tube is fixedly connected to one side of the inside of the catalytic tank, and a water supply pipe is fixedly connected to the upper inside of the heat exchange tube. This utility model achieves highly efficient hot-cold alternating catalysis in the fruit wine brewing process, particularly targeting the needs of aroma release and flavor enhancement in black chokeberry winemaking. It also allows for easy disassembly and cleaning of the filter screen, ensuring effective filtration of impurities in the cooling medium and reducing the cleaning frequency of the plate heat exchanger.

The invention provides a test device for chloride ion migration law under concrete tensile load, which comprises a bottom plate, the left side and the right side of the top of the bottom plate are respectively provided with a fixed support, and N transparent box bodies and N + 1 traction assemblies are arranged between the two fixed supports, a prismatic concrete test block matched with the transparent box body in size is placed in each transparent box body; a resistance-type strain gauge is arranged at the top of the prismatic concrete test block, and the prismatic concrete test block is in communication connection with a strain measuring instrument through the resistance-type strain gauge; a hydraulic hollow jack is arranged on the left side of the top of the bottom plate and located on the left side of the fixed support on the same side, and a pressure sensor is connected to the left end of the hydraulic hollow jack and is in communication connection with a load displayer. The hydraulic hollow jack is additionally connected with a hydraulic loading pump; a spring baffle is arranged on the right side of the top of the bottom plate and located on the right side of the fixed support on the same side, and a reset spring is arranged between the spring baffle and the fixed support on the same side.

This invention provides a single-motor two-speed hybrid system and vehicle, belonging to the field of new energy vehicles. It includes an engine, an input shaft, an intermediate shaft, a motor connected to the input shaft, a two-speed shift assembly, a power on / off assembly, and a drive axle. The power on / off assembly connects the engine and the input shaft. The engine and motor are located at opposite ends of the input shaft. The motor establishes a first transmission path with the drive axle through the input shaft, and a second transmission path through the input shaft and the intermediate shaft. When the power on / off assembly connects the engine and the input shaft, the engine establishes a third transmission path through the input shaft and the drive axle, and a fourth transmission path through the input shaft and the intermediate shaft. The two-speed shift assembly can simultaneously disconnect and periodically engage the first and second transmission paths, as well as the third and fourth transmission paths. This invention solves the problems of poor adaptability of existing single-motor single-speed hybrid systems and the complex structure of multi-speed hybrid systems.

The application discloses a multifunctional filter screen feeding table for a die casting workshop, which comprises a feeding table, a carrying device and a marking device, wherein the feeding table is provided with a feeding position, a discharging position and a quick-change gripper placing position; the feeding position is used for placing at least one full filter screen tray; the discharging position is used for placing an empty tray; and the quick-change gripper placing position is used for placing a quick-change gripper; the carrying device is arranged on the feeding table and is used for carrying the empty tray from the feeding position to the discharging position; and the marking device is arranged on the feeding table and is used for marking a die casting product; an external robot realizes feeding of the full filter screen tray, taking the filter screen from the tray and installing the filter screen into a die casting mold, taking the die casting product from the die casting mold, marking the die casting product and placing the die casting product into a storage position, and discharging the empty tray through the quick-change gripper.

The invention relates to a semiconductor device with high performance, low power consumption and an optimized structure. The semiconductor device comprises a buffer layer, a channel layer, a barrier layer, a contact layer, a source electrode, a drain electrode and a gate electrode. The buffer layer provides lattice matching and thermal stability, the channel layer has high electron mobility and saturation speed, and the barrier layer optimizes device performance by adjusting an energy band structure. A first groove and a second groove which completely penetrate to the upper surface of a channel layer are introduced into a barrier layer, the control capability of a grid electrode on a channel region is enhanced, meanwhile, the design of the grooves is overlapped with the edge projection of a contact layer, and the electric field effect of the edge of the grid electrode is enhanced. In addition, the interlayer stress is optimized by adopting a multi-layer buffer strategy, and the performance of the device is further improved by optimizing the thickness of each functional layer. The manufacturing process comprises the steps of substrate preparation, layer growth, etching treatment, electrode formation, passivation layer deposition and the like, and the semiconductor device realizes high performance, low power consumption and high reliability by optimizing the structural design and the manufacturing process.

The application provides a variable dihedral angle inflatable folding wing based on an electric response shape memory polymer and a control method, which comprises a wing shell, a control system and a pump; the wing shell comprises a framework, an elastic body electrothermal layer and a flexible skin, the framework comprises a wing rib and a spar, and the spar is provided with an electric response shape memory polymer; an upper air bag and a lower air bag which are not conductive to each other are symmetrically installed inside the wing contour between adjacent wing ribs; adjacent upper air bags are connected to each other, and adjacent lower air bags are connected to each other; the upper air bag and the lower air bag at one end of the wing contour are connected with the pump respectively; the control system controls the electric response shape memory polymer to conduct electricity, so that the spar generates thermal deformation; and the control system controls the pump to make the upper air bag or the lower air bag negative pressure, so as to change the upper or lower dihedral angle of the wing. The application can realize variable dihedral angle under different flight requirements.

A tethered satellite-rocket separation device and method are disclosed for separating a spacecraft from the upper stage of a rocket during advanced space launch missions. The device features no pyrotechnics, minimal separation impact, and reusability. The separation device includes a bolt catcher, a load-bearing bolt, a shear sleeve, a spring thruster, a rope, a directional pulley, a rope drum, and a motor. The separation method utilizes a spring thruster to provide initial separation force, allowing the satellite to gain initial velocity and separate from the upper stage. A rope deployment / retraction mechanism (including a directional pulley, rope drum, and motor) releases the rope as the satellite moves. Under centrifugal force, the upper stage, in conjunction with the rope deployment / retraction mechanism, controls the rope length and tension to ensure the rope remains taut at all times. The rope deployment / retraction mechanism gradually releases the rope, allowing the satellite to gradually move away from the upper stage. Upon reaching the separation distance, the rope separates from the satellite, and the rope deployment / retraction mechanism retracts the rope, completing the separation process.

The invention discloses a trajectory tracking and stability cooperative control method and system for a four-wheel steering and driving electric vehicle, and relates to the field of trajectory tracking and control of intelligent vehicles. Solving the linear time-varying discrete state space model by adopting a model prediction control algorithm improved by a multi-state weight adaptive switching strategy to obtain a target front wheel steering angle and an initial target rear wheel steering angle; after the initial target rear wheel rotation angle is subjected to weighted correction, additional yawing moment is calculated through sliding mode control, and the additional yawing moment is distributed to four wheels through quadratic programming to obtain braking moment of each wheel drive; and completing cooperative control based on the target front wheel rotation angle, the corrected target rear wheel rotation angle and each wheel drive braking torque. According to the invention, the track precision and stability can be dynamically balanced under the extreme working condition, the advantages of four-wheel steering flexibility and four-wheel driving yawing moment are considered, and the tracking precision and the driving safety under the extreme driving conditions of high-speed obstacle avoidance, ice and snow pavements and the like are remarkably improved.

The invention provides an agile development method, device and equipment for vehicle-mounted air conditioner control software and a medium. The problem that various defects exist in an existing development mode of the vehicle-mounted air conditioner software is effectively solved. The method comprises the following steps: constructing a visual model based on a plurality of parts of the vehicle-mounted air conditioner in a modeling module according to requirements, and configuring a corresponding visual model by dragging an air conditioner core component and connecting a line; the central data dictionary responds to a request of the intelligent code generation engine and provides a standardized data entity, so that the intelligent code generation engine maps the standardized data entity and the visual model through a three-layer mapping architecture to obtain a target code; the three-layer mapping architecture comprises a semantic-data mapping layer, a platform adaptive layer and a security compliance layer; and verifying the target code based on the three-layer verification structure to obtain a verification result so as to realize agile development of the vehicle-mounted air conditioner control software based on the target code passing the verification.

The present application relates to the field of towing seat, specifically to the magnetic force self-locking towing seat, including towing seat shell, the inside articulated pawl of towing seat shell, the inside linear slide rail of towing seat shell is set up, the inside of linear slide rail is provided with the guide drive mechanism for starting when entering by towing pin, the present application is switched by ingenious magnetic circuit design, makes the tow pin in the process of insertion mechanical drive magnet two rotation, automatically changes its with fixed magnet one magnetic pole opposite relation, thereby in the absence of external power, intelligent control magnetic field generation and blanking.When the magnetic pole is in the same direction, the magnetic field is guided out through the metal sheet, forming strong suction force, the pawl is quickly attracted, realizing the instantaneous locking of magnetic force auxiliary.The process greatly reduces the insertion force and impact noise required by pure mechanical locking, makes the connection action more smooth, soft, and the magnetic attraction force ensures the sufficiency and consistency of locking, improves the connection reliability and operation experience.

The invention relates to the field of automobile accessories, and particularly discloses a seat armrest follow-up cup stand structure which comprises a seat framework, an armrest framework and a cup stand assembly, the armrest framework is provided with an inhaul cable assembly, the cup stand assembly comprises a cup stand shell, a cup stand frame and a cup stand base, the cup stand shell is fixedly connected with the armrest framework, and the cup stand base is rotationally connected with the cup stand frame in a limiting mode. The inhaul cable assembly comprises a long inhaul cable, a cup stand abutting piece and a reset spring, a vertically-arranged movable cavity is formed in the front end of the cup stand shell, the reset spring and the cup stand abutting piece are arranged in the movable cavity, the cup stand abutting piece ascends and descends in the movable cavity in a limited mode, one end of the long inhaul cable is fixedly connected with the seat framework, and the other end of the long inhaul cable is fixedly connected with the cup stand abutting piece. The bottom end of the cup stand abutting piece is provided with a movable inclined face, and the end, close to the cup stand shell, of the cup stand base abuts against the movable inclined face. The included angle between the cup holder base and the cup holder frame can be switched according to different seat states, electric drive is not needed, the switching process is completed through mechanical transmission of the long inhaul cable, and the structure is simple and stable.