35results about How to "Control operation" patented technology

The invention relates to the technical field of mining oxygen supply regulation, in particular to a mining working face intelligent oxygen supply regulation system which comprises oxygen supply equipment, air purification equipment is arranged on one side of the oxygen supply equipment, one end of the oxygen supply equipment and one end of the air purification equipment are both connected with connecting pipes, and one sides of the two connecting pipes are jointly connected with air hole regulation equipment. And one side of the air hole adjusting equipment is connected with an air supply pipe, and fan equipment is installed at one end of the air supply pipe. Air can be effectively purified through the effect of the purification assembly, disassembly and replacement are convenient, the gas condition in the mine tunnel can be effectively monitored so that whether gas supply is conducted or not can be rapidly controlled, meanwhile, the oxygen content can be controlled, the safety in the mine tunnel is guaranteed, gas can be fully supplied to workers in the mine tunnel, and the working efficiency is improved. And fixed-point oxygen supply can be carried out according to the conditions in the mine tunnel, and the gas quality in the mine tunnel is improved.

The invention relates to the technical field of 3D printer nozzles, in particular to a mixed screw and a single-screw 3D printer nozzle applying the same, the mixed screw comprises a rod body part, main body threads are fixed on the rod body part, a limiting boss is fixed at the upper end of the rod body part, and a rotating rod is fixed at the upper end of the limiting boss. The integrated structure is adopted, the overall firmness can be fully improved, directional movement of materials can be effectively controlled by controlling the rotating direction of the rod body part and the main body thread, the material moving direction can be controlled by controlling the rotating direction, and meanwhile through the arrangement of the multiple mixing elements, the mixing efficiency is improved. Materials can move from a gap between two adjacent mixing elements; the original single runner is changed into multi-runner simultaneous extrusion, so that the high-efficiency distribution mixing performance is realized; the shapes of a plurality of mixing elements are controlled through a hyperbolic curve, so that the melt is subjected to a process from convergence to divergence for more than two times, and the dispersing and mixing performance is more efficient.

The utility model discloses a bidirectional photovoltaic energy storage inverter and a photovoltaic energy storage system. The bidirectional photovoltaic energy storage inverter comprises at least one DC conversion module, a DC bus, a bidirectional AC / DC conversion module, a bidirectional DC / DC conversion module and a control module. The at least one direct current conversion module is used for converting the output voltage of the changed photovoltaic string into stable direct current bus voltage; the bidirectional AC / DC conversion module is used for converting the DC bus voltage into AC voltage and outputting the AC voltage to an AC load or an AC power grid; the bidirectional DC / DC conversion module is used for energy transmission between the DC battery module and the DC bus; the control module is used for controlling operation of all the modules. By adding the bidirectional photovoltaic energy storage inverter, zero-voltage pipe section and zero-current switching-on can be realized under different conditions, and the suitability of the photovoltaic energy storage system is greatly improved.

The application discloses a Buzhong Yiqi tablet pressing device, and relates to the field of medicine tablet pressing, which comprises a fixed base. The Buzhong Yiqi tablet pressing device can continuously and stably work through the action of a punching mechanism. Raw materials are placed in a lower hopper, the lower hopper places the raw materials in a hollow column, the operation of a control motor is controlled, the output end of the motor drives gear rotation, thereby driving outer gear ring rotation, the rotating disc drives the outer gear ring to rotate, thereby rotating the next hollow column to the bottom of the lower hopper, so that the raw materials flow into the hollow column. When the hollow column filled with the raw materials rotates to the bottom of the punching cylinder, the operation of the punching cylinder is controlled, the punching cylinder moves the output end to the hollow column, the raw materials are compacted, the rotation of the rotating disc is controlled, the next hollow column is rotated to the bottom of the punching cylinder, and the raw materials are compacted again. The raw materials in the hollow column are continuously and uninterruptedly compacted in a circumferential mode, the raw materials can be continuously compacted, and the punching efficiency of the Buzhong Yiqi tablet is improved.

The application relates to the field of testing and aims to solve the problem of low testing efficiency, and provides a display screen testing method, electronic equipment and computer storage medium. The display screen testing method is applied to electronic equipment including N display screens, N is an integer greater than or equal to 2, the method comprises the following steps: obtaining the testing configuration of a current testing scene; obtaining the multi-screen configuration attribute of the testing configuration, the multi-screen configuration attribute is used for indicating the target display screen to be tested in the current testing scene; determining M target display screens to be tested in the N display screens according to the multi-screen configuration attribute, M is an integer greater than or equal to 2, and M is less than or equal to N; obtaining the screen information of the M target display screens; controlling the M target display screens to display according to the screen information of the M target display screens; and applying corresponding stress to the displayed M target display screens according to the current testing scene. Two or more target display screens to be tested can be configured in the testing scene, and the testing efficiency is improved.

This invention discloses a high-pressure forming apparatus and method for graphene high-speed steel bearings. The apparatus includes a human-machine interface system, an automatic loading and unloading system, a high-pressure forming system, and a control system. The method is as follows: First, the high-speed steel bearing is placed on a vibrating conveyor belt and transported to a bearing mounting base. After a proximity switch sensor detects the high-speed steel bearing, the main controller controls a magnetic mechanical gripper to remove the high-speed steel bearing from the bearing mounting base and place it between high-pressure forming molds. Then, a lower layer of graphite material is laid on the base of the high-pressure forming mold, and the high-speed steel bearing is placed in the inner ring of the mold. The upper cover of the high-pressure forming mold is lowered to cover the bearing, and a plug is placed in the inner ring of the upper cover of the high-pressure forming mold before laying the upper layer of graphite material. Finally, the high-pressure forming system is activated, and the high-pressure forming ejector pin performs double-sided forming on the upper and lower end faces of the high-speed steel bearing. This invention achieves high-pressure forming of graphite material for graphene high-speed steel bearings, with a high degree of automation, improving production efficiency and product quality.

This application discloses an adjustable embossing roller for tissue paper embossing, relating to the field of tissue paper embossing. It includes symmetrically arranged fixed plates, with an adjustment mechanism on one side of each fixed plate and a dust extraction mechanism on the outer side of the adjustment mechanism. This invention, through the adjustment mechanism, can adjust the vertical movement of the lower embossing roller, thereby adjusting the distance between the lower and upper embossing rollers. It controls the operation of a servo motor, whose output drives a forward and reverse lead screw to rotate. With the assistance of two limit rods, the two outer sliding plates of the lead screws move simultaneously in the same or opposite directions. As the sliding plates move, they cause a connecting rod to fold, thereby raising the limit plates vertically. At this time, the two ends of the lower embossing roller move within a groove. The movement of the lower embossing roller adjusts the distance between it and the upper embossing roller, thus adapting to the need for greater embossing depth on tissue paper.

The utility model discloses a motor test system, control terminal for issuing control instruction, main control board, connection control terminal for resolving and issuing control instruction, a plurality of motor equipment respectively with main control board electric connection, controlled to main control board, cloud ware, connection control terminal, send remote control instruction to control terminal, pass through control terminal and carry out remote control, and main control board feedback motor test data to control terminal, and control terminal will motor test data send to cloud ware storage. Control terminal issues control instruction, realizes control multi -motor operation, and test data feedback to control terminal and pass through control terminal real -time display, and through control terminal and upload to cloud ware storage, in addition still can realize remote control motor test, improve test efficiency.

The utility model discloses an environmental protection device and a closed type coal conveying belt dust removal device thereof, and relates to the technical field of environmental protection equipment, and the closed type coal conveying belt dust removal device comprises an anti-dissipation channel arranged along the running direction of a coal conveying belt, the anti-dissipation channel comprises two vertical plates arranged on the two sides of the coal conveying belt and a horizontal top plate horizontally arranged above the two vertical plates. The horizontal top plate is provided with an opening used for penetrating through the dust collection channel, and one end of the dust collection channel is communicated with the opening; and the other end of the dust collection channel is communicated with the dust collection device, and the dust collection device is used for sucking the coal dust in the dissipation prevention channel into the dust collection channel and filtering the coal dust. The device can effectively reduce coal dust which is generated when the coal feeder works and floats in the air, and pollution of the coal dust to the environment is reduced.

The present invention provides a power unit and a power device having the same, wherein the power unit comprises: a substrate, wherein a first terminal conductive part, a chip conductive part and a second terminal conductive part are sequentially arranged in a first direction, and the chip conductive part is conductively connected to the second terminal conductive part; a chip is arranged on the chip conductive part, wherein a first side of the chip is connected to the chip conductive part, and a second side of the chip is conductively connected to the first terminal conductive part; a first diode is arranged on the second terminal conductive part; a control part is arranged on the substrate and connected to the chip, and the control part is arranged between the chip and the first diode. The technical solution of the present application effectively solves the problem of poor heat dissipation effect of the power unit in the related art.

The invention provides an intelligent welding system for an aluminum alloy automobile frame, and belongs to the technical field of intelligent welding systems.The intelligent welding system comprises a welding table, a rectangular frame, two sets of bearing rods, a length adjusting piece, a width adjusting piece, a frame welding piece, an overturning piece and a conveying piece, and a working cavity is formed in the top of the welding table; the rectangular frame is rotatably arranged in the working cavity; through cooperation of the welding table, the rectangular frame, the bearing rod, the adjusting piece, the welding piece, the overturning piece and the conveying piece, a complete welding process is formed, the working cavity provides a closed and stable working space for welding operation, the rectangular frame is rotatably arranged and can be matched with the overturning piece to achieve multi-angle welding positioning of a frame, and the problem of single-angle welding dead angles is solved; and the two sets of bearing rods and bearing pieces can stably bear the vehicle frame, the length adjusting piece and the width adjusting piece are matched with vehicle frames of different lengths and widths correspondingly, a special tool does not need to be replaced, and the universality of equipment is improved.

The application discloses a kind of fault diagnosis devices of thickness gauge high pressure system.The fault diagnosis device includes single-chip microcomputer (21), microcomputer display screen (22), high voltage regulating circuit (23), current regulating circuit (24) and interface module (25);Single-chip microcomputer can send control operating parameter to high voltage control unit by the serial interface (12) of high voltage control unit;Single-chip microcomputer can send control signal to high voltage control unit;High voltage regulating circuit can adjust the high voltage feedback voltage of high voltage control unit;Current regulating circuit can adjust the tube current feedback voltage of high voltage control unit;Operating microcomputer display screen sends instruction to high voltage control unit, controls the operation of high voltage control unit, receives the feedback data of high voltage control unit, and shows the feedback data of high voltage control unit on microcomputer display screen.The fault diagnosis device is used to diagnose the high pressure system of thickness gauge, and the fault point in high pressure system can be quickly determined.

The application relates to the technical field of electric measurement and fault diagnosis, in particular to a battery pack internal micro-short circuit electric fault online detection device. The device comprises a host module and a collection module connected with the host module through a communication line, the collection module is connected with the positive and negative poles of a battery pack through a collection line, a joystick and a clamping mechanism are arranged on the collection module, the joystick is slidably arranged around the collection module through a limiting assembly, the communication line is controlled through the joystick, since the end of the joystick is close to the side wall of the vehicle body, the communication between the communication line and the communication port of the collection module can be controlled through the joystick without prolonging the communication line. Moreover, the sliding of the joystick also controls the operation of an electromagnet, so that the stability of the connection between the communication line and the communication port of the collection module in the non-repair state is ensured.

This utility model relates to the field of graphene slurry production, specifically a production apparatus for high-pressure exfoliation to prepare graphene slurry, including an equipment chamber; a graphite slurry tank is fixedly installed at the bottom inner side of the equipment chamber, and a graphite pretreatment mechanism is installed on the graphite slurry tank; a high-pressure plunger pump, a processing reactor, and a supercritical carbon dioxide tank are fixedly installed at the bottom inner side of the equipment chamber; a connecting pipe is installed between the input end of the high-pressure plunger pump and the bottom of the graphite slurry tank; a reactor cover is detachably installed on the top of the processing reactor, and a slurry spraying and exfoliation mechanism is installed on the reactor cover; a material valve is fixedly installed on the top of the supercritical carbon dioxide tank, and a material conveying pipe is fixedly installed on the material valve; a supercritical carbon dioxide feed pipe is fixedly installed on the reactor cover, and a supercritical carbon dioxide dosimeter is fixedly installed on the supercritical carbon dioxide feed pipe; and a secondary slurry exfoliation mechanism is installed on the reactor cover, which can improve the effect of exfoliation to prepare graphene slurry.

This invention discloses a method, equipment, and storage medium for controlling aluminum profile extrusion, belonging to the field of aluminum profile technology. The invention acquires target sensing data, including exit temperature data, die vibration data, main extrusion pressure data, and extrusion speed data; determines a feedforward compensation amount based on the main extrusion pressure data and the extrusion speed data; determines gradient correction parameters based on historical temperature rise data and billet length data; and determines a speed constraint coefficient based on the die vibration data. The extrusion equipment is then controlled based on the feedforward compensation amount, the gradient correction parameters, the speed constraint coefficient, and the exit temperature data, achieving the beneficial effect of reducing the probability of defects during aluminum profile extrusion.

The application discloses a cooling and heat dissipation method and system of an energy storage power supply, and the cooling and heat dissipation method comprises the following steps: acquiring the discharging power of the energy storage power supply in real time, and calculating the real-time heat generation of the energy storage power supply; comparing the size of the real-time heat generation and the heat generation threshold value; when the real-time heat generation of the energy storage power supply is lower than or equal to the heat generation threshold value, starting the cooling circulation single loop, and according to the real-time heat generation of the energy storage power supply, calculating the conventional refrigeration power of the liquid cooling unit, and controlling the liquid cooling unit to operate at the conventional refrigeration power; when the real-time heat generation of the energy storage power supply is higher than the heat generation threshold value, starting the cooling circulation double loop, and according to the real-time heat generation of the energy storage power supply, calculating the rapid refrigeration power of the liquid cooling unit, and controlling the liquid cooling unit to operate at the rapid refrigeration power. The application can accurately match the cooling power of the liquid cooling unit according to the heat dissipation state of the energy storage power supply, and has the function of rapid cooling when the energy storage power supply is subjected to large-rate charging and discharging.

This invention relates to the field of greenhouse planting technology, providing a water circulation temperature control buffer system and control method for a solar greenhouse. The system includes an underground water storage tank, a main greenhouse structure, a water circulation component, and a control module. The water circulation component includes a circulation pump, a heat pump unit, and a temperature control unit. The circulation pump is located between the water storage tank and the water storage tank, forming a fluid loop. The heat pump unit is connected to the water storage tank via a circulation pipeline. The inlet of the temperature control unit is connected to the water storage tank, and the return end is connected to the water storage tank. The temperature control unit includes a heat dissipation module and a heat absorption module connected in parallel. The heat dissipation module cools the circulating water in the system, while the heat absorption module cools the interior of the main greenhouse structure. The water storage tank is higher than the temperature control unit. This invention utilizes the elevation difference to create a pressure difference to promote water circulation and achieves low-energy cooling through the heat absorption module, solving the problems of low thermal efficiency and high operating costs associated with other water circulation temperature control methods. The entire system has a simple structure, low cost, and is easy to manufacture and use.

The utility model discloses a medicine feeding device for ecological environment protection, which comprises a support, each vertical rod of the support is fixedly connected with a frame on the upper side through an inclined rod, and the medicine feeding device is characterized in that a conical medicine storage box is fixed in the frame on the upper side of the support; an opening is formed in the lower side of the conical medicine storage box, the opening in the lower end of the conical medicine storage box is fixedly connected with a square discharging channel, a square opening is formed in the lower portion of one end of the square discharging channel, and medicine baffles are fixedly connected to the two sides of one end of the square discharging channel respectively. The utility model relates to the technical field of ecological protection, in particular to medicine feeding equipment for ecological environment protection. According to the utility model, drugs can be conveniently put so as to improve the ecological environment of the river channel.

The utility model discloses a corrosion-resistant stainless steel surface self-repairing coating spraying device for decoration, and relates to the technical field of spraying equipment. The spraying device for the corrosion-resistant decorative stainless steel surface self-repairing coating comprises a rack, an electric conveying belt is arranged in an inner cavity of the rack, a supporting assembly is arranged over the middle of the electric conveying belt, a plurality of coating spraying guns are arranged on one side of the supporting assembly, a supply assembly is arranged on one side of the rack, and a spraying assembly is arranged on the other side of the rack. The output end of the supply assembly is communicated and connected with the input ends of the plurality of coating spray guns; a self-repairing coating can be formed on the surface of the outer wall of the corrosion-resistant stainless steel plate for decoration, so that when the corrosion-resistant stainless steel plate for decoration is scratched, the scratches can be automatically repaired by an automatic repairing agent, and the corrosion-resistant stainless steel plate for decoration is prevented from being scratched. Therefore, the service life of the corrosion-resistant decorative stainless steel plate can be prolonged.

The application discloses a hoisting mechanism control method, device, system and storage medium, and relates to the technical field of electrical control. The method comprises the following steps: after the hoisting mechanism starts to work, the tension state of a connecting rope in the hoisting mechanism is acquired; the tension state comprises a slack state or a tension state; according to the tension state, the current working stage of the hoisting mechanism is determined; the current working stage comprises a hoisting stage, a stable running stage or a descending landing stage; according to the current working stage, the running speed of the hoisting mechanism is determined; and according to the running speed, the hoisting mechanism is controlled to run. According to the application, the hoisting mechanism runs at different running speeds in different stages, so that the load can be smoothly hoisted, and compared with the operation of the hoisting drive control system to drive the hoisting mechanism to run, the application will not cause a safety accident due to improper operation, solves the technical problem that the existing hoisting mechanism is driven to run by the operation of the hoisting drive control system and has low reliability, and improves the reliability of hoisting mechanism control.

The utility model discloses an electric grinder which comprises a containing mechanism, a charging barrel and a switch, the containing mechanism comprises a battery box and a cover body, the battery box is provided with a positioning frame, the positioning frame is provided with a plurality of positioning grooves, batteries are arranged in the positioning grooves in a penetrating mode, the cover body is detachably connected to the battery box, and the batteries can abut against the cover body; the charging barrel is detachably connected to the battery box, the charging barrel is connected with a grinding assembly and an illumination assembly, the grinding assembly is electrically connected with the battery, the grinding assembly is used for grinding raw materials, the illumination assembly comprises a light guide column and a lamp bead, the light guide column is fixedly connected to the charging barrel and extends out of the charging barrel, and the lamp bead is arranged at the end of the light guide column and electrically connected with the battery; the switch is used for controlling on-off of a circuit of the battery. According to the electric grinder provided by the embodiment of the utility model, the mounting stability of the battery can be improved, a user can conveniently observe the grinding condition, and the use experience of the user is improved.

The utility model discloses a touch screen surface protective film automatic cutting and attaching all-in-one machine which comprises a machine body, one side of the machine body is fixedly connected with two supporting frames, a wind-up roller is connected between the two supporting frames in a rotating mode, and one side of one supporting frame is fixedly connected with a fixing box. The touch screen surface protection film winding device is simple in operation, easy to use, compact in structure and higher in practicability, and compared with a traditional device, the first gear, the first motor, the second gear, the winding wheel, the electromagnet, the magnet and the touch switch are arranged, so that the first motor can be controlled to rotate the winding roller to wind a touch screen surface protection film; when the touch screen surface protection film needs to be processed, the touch screen surface protection film can be conveyed at a constant speed, and the winding belts are arranged on the outer sides of the two winding wheels and can be used for calculating the overall time for completing conveying of the touch screen surface protection film.

The utility model discloses a kind of bolt production rust-proof devices, it is related to bolt production technical field, including: support platform, the bottom of the support platform is equipped with mounting bracket, the inside bottom wall of mounting bracket is equipped with recovery box, the top wall of recovery box is equipped with opening, the inside of support platform is equipped with guide hopper, the top of support platform is equipped with mounting plate, mounting plate is located at the side of guide hopper, the side of mounting plate is equipped with telescopic link, one end of telescopic link is equipped with support seat, the inside of support seat is equipped with rotating shaft, one end of rotating shaft is equipped with clamping plate. The utility model is equipped with guide hopper and recovery box by installation, mounting bracket supports inside bottom wall recovery box, opening is set in the top of recovery box, support platform is fixed to the inside guide hopper, guarantee the stability of guide hopper, guide hopper receives coating liquid from above, guide hopper guides coating to be recovered to the inside of recovery box, it is convenient to recover coating, prevent coating waste.

The utility model discloses an intelligent air supply breathing mask which comprises a mask body, a mobile power source and a control mechanism. An air inlet and an air outlet are formed in the outer side of the mask; the air inlet and the air outlet are both communicated with the inner cavity of the mask, one-way valves are arranged in the air inlet and the air outlet, and a connecting mechanism is arranged on the air inlet and / or the air outlet; the fan is mounted in the connecting mechanism; one end, far away from the mask, of the connecting mechanism is detachably connected with the filter cartridge; the outer side of the mask is connected with a containing mechanism. An inner cavity of the containing mechanism is suitable for containing a mobile power source and / or a control mechanism. A first hole is formed in the accommodating mechanism, and the first hole is suitable for communicating an inner cavity of the accommodating mechanism with an inner cavity of the mask; the control mechanism is suitable for detecting air pressure data of the inner cavity of the mask and air inlet flow of the air inlet and controlling the fan to perform corresponding actions according to detection results. The auxiliary breathing effect of the mask can be enhanced; the fan and the mobile power supply are independently arranged, gas can be conveyed more sufficiently, and the cruising ability of the fan is improved.

The application belongs to the technical field of intelligent control, and discloses an industrial fan control method and device based on a thin film capacitor, equipment and a medium. The Clark transformation and the Park transformation are performed by acquiring three-phase real-time current values of a motor to obtain shaft real-time current values and shaft real-time current values. A target coefficient is calculated according to a DC bus voltage, the shaft real-time current values and the shaft real-time current values. The q-axis current instruction is calculated according to the target coefficient and the DC bus voltage. The d-axis current instruction is determined. The industrial fan is controlled to operate according to the q-axis current instruction and the d-axis current instruction. Therefore, the motor shaft current instruction can be adaptively and real-timely calculated according to the DC bus voltage, the q-axis current can follow the bus voltage fluctuation, the range of bus fluctuation is weakened, the stable control of the bus voltage is realized under the premise of ensuring the stable operation of the system, and the motor current distortion and torque pulsation are reduced.

The utility model provides a rainwater purification and storage device, which relates to the technical field of water resource purification and comprises a support, a purification container, a drainage mechanism, a reservoir, an underground water kiln and an electric power storage controller capable of receiving weather information. The purification container is provided with a water receiving cavity with an upward opening, a plurality of convex lenses for gathering sunlight to the reservoir are distributed in the purification container, the outer surface of the purification container inclines downwards, an orifice communicated with the water receiving cavity is formed in the lowest point of the inclination, and a water inlet of the telescopic or rotary drainage mechanism corresponds to the orifice; the drainage mechanism is connected with the power storage controller, and the power storage controller controls the water outlet of the drainage mechanism to be arranged corresponding to the water inlet of the reservoir or the underground water kiln according to weather information. The water quality problem existing in rainwater storage application is relieved, the occupied area is small, the cost is low, and pollution cannot be caused.

The application discloses a quantitative proportioning device for saccharifying enzyme in fructooligosaccharide processing, and relates to the field of fructooligosaccharide processing.The device comprises a storage tank, a reciprocating mechanism arranged in the storage tank, and a plug-in mechanism arranged in the reciprocating mechanism; the reciprocating mechanism comprises a wheel disc and a push-pull plate movably arranged in the storage tank.The device can quantitatively discharge the saccharifying enzyme in the storage tank by the action of the reciprocating mechanism, and the running of a control motor is controlled; the motor output end drives the wheel disc to rotate, the wheel disc drives a limiting pin to move in a straight groove plate, the straight groove plate moves transversely in the movement of the limiting pin, thereby driving the connecting rod to move transversely and reciprocally, and the connecting rod drives the limiting pin to move reciprocally; after the push-pull plate is separated from one side of the storage tank, the saccharifying enzyme flows downwards and is introduced into a program of fructooligosaccharide processing through a discharging groove, the device has the action of quantitatively discharging the saccharifying enzyme, and the precision of saccharifying enzyme proportioning in the fructooligosaccharide processing is improved.

The utility model discloses a car roof sliding guardrail for an elevator. A three-face guardrail is provided with an open end extending in the transverse direction. The in-out guardrail is arranged in the open end of the three-face guardrail and comprises a sliding groove, a sliding rod, a limiting switch and a locking assembly. The two sets of sliding grooves are oppositely arranged at intervals in the transverse direction and extend in the vertical direction, and an access channel is formed between the two sets of sliding grooves. The sliding rod stretches across the access channel; the sliding rod is connected with the sliding grooves in the two sides in an up-down sliding mode and has an intercepting position for stopping passing through the access channel and an access position for allowing passing through the access channel. The locking assembly is used for locking or unlocking the sliding rod at the intercepting position; at the intercepting position, the sliding rod is in contact with the limiting switch; at the in-out position, the sliding rod is far away from the limiting switch. Four-side protection can be achieved on the car roof of the elevator so that maintenance personnel can be effectively protected, the elevator can enter and exit from the car roof conveniently, the structural design is simple, installation is convenient and fast, and the actual use requirement of the elevator is effectively met.

This utility model discloses a mobile chemical mixing device, including a first pipe, a liquid inlet pipe, a second pipe, a third pipe, a liquid outlet pipe, a pressure gauge, an air inlet pipe, and an exhaust pipe integrated on a mixing tank. It also includes a liquid filtration device, a gas filtration device, and a cooling device. The combination of various pipes and valves enables functions such as circulating mixing, liquid filtration, pressure balancing, and liquid cooling, thereby improving mixing efficiency and effect. Furthermore, unified control through a control system enables automated mixing of the entire device. In addition, the mixing tank has a movable bracket at the bottom, which allows the entire device to be moved, making it highly mobile and flexible.

The application discloses a target temperature calculation method, an air conditioner and a computer storage medium, and relates to the technical field of air conditioners. The target temperature calculation method comprises the following steps: obtaining a control signal of a control device after the air conditioner is started; determining a correction value according to the control signal; obtaining a first temperature of an environment where an indoor unit of the air conditioner is located at a first time, the first time being the same as a time when the control signal is received; and determining a target temperature as a sum of the first temperature and the correction value. According to the target temperature calculation method, the target temperature set by the control device is calculated according to the control signal fed back by the control device and the first temperature of the environment where the indoor unit is located at the time when the air conditioner receives the control signal, so that the air conditioner can operate according to the calculated target temperature.