149results about How to "Quick control" patented technology

The invention discloses a split type back door control method, device and equipment and a storage medium, and relates to the technical field of vehicle back door control, the split type back door control method comprises the steps that an actuation instruction of a split type back door is responded, and a first back door or a second back door is controlled to actuate according to the actuation instruction; when the split type back door stops acting, a target back door which stops acting is determined; detecting whether the position where the target back door stops acting is located in a collision area or not; and when the position where the target back door stops acting is located in the collision area, the first back door and / or the second back door are / is controlled to move based on the emergency position. By arranging the emergency position, when collision between the first back door and the second back door is about to happen, the corresponding back door is controlled to quickly return to the emergency position, the split type back door can be quickly controlled, the waiting time is shortened, and the control effect is improved.

The invention discloses a conductive paste low-temperature laser sintering method and application thereof, and the method specifically comprises the steps: applying a low-temperature laser sintering technology to the sintering process of low-silver or silver-free conductive paste, and achieving the efficient and uniform molding of a conductive layer at a lower temperature through the control of the frequency, power density and wavelength of laser. The damage of high-temperature sintering to the material structure is avoided, the conductivity of the conductive paste is effectively improved, the use of silver is reduced, and the cost is reduced; besides, the conductive paste is modified by adding a modifier, and in practical application, the photovoltaic conductive paste with the silver content of 8.5% shows excellent conductivity after being subjected to laser-assisted sintering.

The invention discloses a method and a system for capturing and remotely controlling an equipment picture, in the system, a webpage end and an equipment end respectively establish TCP (Transmission Control Protocol) connection with a server end; the webpage side initiates an RTC connection request to the server side, and the server side forwards the request; the device end obtains a screen video stream, initializes RTC, configures video transmission parameters, and transmits the video stream to the webpage end; the webpage end and the equipment end carry out P2P connection negotiation through SDP and CAN information exchange, and after RTC connection is successfully established, the webpage end receives and displays a video stream of the equipment end; the webpage end monitors the control instruction and the function instruction and transmits the control instruction and the function instruction to the equipment end, and the equipment end executes a corresponding screen response according to the control instruction or the function instruction and sends an execution result to the webpage end to be displayed. Through the technical scheme of the invention, stable and timely interaction experience is provided, the pressure of data transmission and exchange is reduced, the migration cost of multiple types of equipment ends is reduced, and the development and maintenance cost is reduced.

Disclosed is a battery pack capable of securing safety even when a thermal event occurs. According to one aspect of the utility model, the battery pack comprises a battery module and a battery module, wherein the battery module comprises one or more battery monomers; a control module coupled to the battery module to manage the battery module; and a fire extinguishing tank having a fire extinguishing agent, the fire extinguishing tank being coupled to the battery module and / or the control module, and including a rupture member capable of rupture under predetermined conditions such that the fire extinguishing agent can flow out.

The present invention relates to a car fire extinguishing cover, comprising a movable frame capable of moving and arranging a car cover therein, the movable frame being a heat-resistant frame, a length-adjustable frame capable of adjusting the length along the length direction of the car, with one end of the movable frame as the head end and the other end as the tail end, a front driving device for driving the movable frame to move and a rear driving device for driving the movable frame to stretch in length are installed at the head end of the movable frame, a fireproof cloth is arranged on the outer surface of the movable frame, a water spraying pipe arranged along the range of the movable frame is arranged on the movable frame, a plurality of water spraying holes are opened on the water spraying pipe for spraying into the movable frame so that water can be sprayed in the circumference of the car in the movable frame, and a dry powder fire extinguisher with its spraying hole arranged downward is installed in the tail end of the movable frame. Compared with the prior art, the mobile frame can cover the car on fire to extinguish the fire in time and effectively, and quickly prevent the fire from spreading, thereby effectively protecting people's property and personal safety.

The invention discloses a fire extinguishing method for a low-boiling-point flammable liquid storage tank. Fire control and cooling: applying high-stability compressed air foam to quickly control the fire of the low-boiling-point flammable liquid aiming at the fire of the low-boiling-point flammable liquid storage tank, and covering the surface of the low-boiling-point flammable liquid to form a foam blanket, so that the liquid is gradually cooled until the boiling point of the low-boiling-point flammable liquid is lower than the boiling point of the low-boiling-point flammable liquid; only oil steam and residual flames on the surface of the foam blanket remain; fire extinguishing: quickly spraying and releasing a dry powder extinguishing agent aiming at low-boiling-point flammable liquid oil steam residual flames on the surface of the foam blanket, and completely extinguishing the oil steam residual flames on the surface of the foam blanket by utilizing the excellent chemical inhibition fire extinguishing performance of the dry powder extinguishing agent; and after the fire of the low-boiling-point flammable liquid storage tank is completely extinguished, high-stability compressed air foam is continuously applied, a foam blanket is formed on the surface of the low-boiling-point flammable liquid, the low-boiling-point flammable liquid is continuously cooled, and reburning is effectively prevented. The fire extinguishing method is very efficient for extinguishing a low-boiling-point flammable liquid fire source.

The utility model discloses a heating discharge device of an electrical tar precipitator, which comprises a slag discharge port, the upper part of the slag discharge port is a square conical electric field bottom outlet, the lower part of the slag discharge port is a cylindrical tar discharge port, the lower end of the electric field bottom outlet is communicated with the upper end of the tar discharge port, and a quick-opening valve is arranged at the bottom of the slag discharge port. A ceramic heating rope is uniformly wound on the peripheral wall of the slag discharging opening; the slag discharge port of the electrical tar precipitator is arranged to be of a special structure with the square top and the round bottom, the electrical tar precipitator can be suitable for a drainage discharge port without a power supply, and fluid is decomposed into a rarefied spraying form or annular convection to achieve the purpose of impact counteracting; the quick-opening valve with an opening in the whole body is adopted, dynamic material flowing is quickly controlled, and operation is easy; the slag discharging opening is heated through the ceramic heating rope, and the ceramic heating rope has high high-temperature resistance, can stably work for a long time in a high-temperature environment, and is high in heating and cooling speed and low in energy consumption.

The invention relates to the technical field of traffic road regulation and control, and discloses an over-saturation road congestion governance regulation and control method, which comprises the following steps: acquiring road traffic data, performing congestion analysis on the acquired road traffic data, and identifying a congested road section, the traffic data comprising traffic flow, vehicle speed, position and time information; in combination with collected traffic data and a recognized congested road section, an intelligent signal control algorithm is adopted to optimize signal lamps close to intersections of the congested road section, and the signal duration and phase are dynamically adjusted to realize rapid defibering of the congested road section; road network information and congestion road section intersection signal lamp control strategies are combined, other signal lamp control strategies of a road network are dynamically regulated and controlled through cascade analysis, road section vehicles of the whole network are dynamically regulated and controlled, congestion of the whole network is avoided, and road section passing efficiency is improved; and performing dynamic regulation and control according to the calculated whole-network signal lamp control strategy, thereby realizing over-saturation road congestion regulation and control.

The invention relates to a distribution network engineering construction safety protection device and an intelligent monitoring system thereof, the distribution network engineering construction safety protection device is composed of an intelligent sensing device, an intelligent monitoring system and a visual monitoring platform, the intelligent sensing device is responsible for accurately collecting data of a distribution network construction site in real time; and the intelligent monitoring system performs data preprocessing and data compression on the collected data of the intelligent sensing device, performs PCA (Principal Component Analysis) on the data to form a parameter feature data set, performs data analysis by applying an attention mechanism added in an improved LSTM (Long Short Term Memory) algorithm, and performs identification, fault positioning and fault removal and recovery on the feature data set. Accurate prediction and intelligent decision making are realized through an artificial intelligence algorithm, and the safety protection efficiency is remarkably improved. Various complex environments are flexibly handled through the positioning module, the maintenance cost is reduced, and the life cycle of the intelligent monitoring system is prolonged.

The invention discloses a modulation method and circuit of a single-stage multi-port motor driver for realizing port power control, relates to the technical field of motor control, and solves the technical problems of complex process, large power ripple and slow dynamic response when an extra PI controller indirectly adjusts the proportion of a redundant vector or a zero-sequence component to adjust the port power. The method comprises the following steps: converting original three-phase reference voltage into three-phase reference voltage va, vb and vc under a natural coordinate system; injecting a first zero-sequence voltage vo1 into the three-phase reference voltage to generate first direct-current modulation signals vaz1, vbz1 and vcz1; injecting a second zero sequence voltage vo2 into the first direct current type modulation signal to generate second direct current type modulation signals vaz2, vbz2 and vcz2; and comparing the second direct-current modulation signal with the asymmetric triangular carrier, generating a switching signal for driving a single-stage multi-port motor driver, and controlling a plurality of bridge arms to perform switching operation. According to the invention, the port power is accurately and rapidly controlled, the control process is simple, and the power ripple is small.

The invention discloses an emulsion pump loading valve speed regulation control system and a working method thereof. The emulsion pump loading valve speed regulation control system comprises a servo motor, a servo driver and an upper computer. The working method comprises the following steps: S1, inputting a pressure set value of the loading valve of the emulsion pump; s2, the upper computer calculates the input pressure set value of the loading valve of the emulsion pump through a PID (Proportion Integration Differentiation) controller to obtain a required rotating state and a required rotating speed of a servo motor and transmits the required rotating state and the required rotating speed to a servo driver; s3, controlling a servo motor by a servo driver, and enabling the servo motor to drive an emulsion pump loading valve to work; s4, the pressure sensor feeds back the pressure acquisition value to the upper computer; s5, the upper computer carries out comparison calculation on the pressure parameters of the loading valve of the emulsion pump through a PID (Proportion Integration Differentiation) controller; and S6, the servo driver adjusts and controls the servo motor according to the comparison calculation result, and precise pressure control over the loading valve of the emulsion pump is achieved.

The invention discloses an air-ground integrated cooperative command forest fire extinguishing system based on a 5G network. The air-ground integrated cooperative command forest fire extinguishing system comprises an air-ground integrated cooperative command decision display unit, a fire situation intelligent analysis unit, a comprehensive scheduling unit, a data communication unit and a 5G communication link unit. The data communication unit comprises a data transmission downlink unit and a data transmission uplink unit; the current real-time information of the forest fire is detected and acquired in real time through the load scheduling unit; a fire prediction situation map is obtained through real-time information of the fire situation intelligent analysis unit, and fire extinguishing facility information of current fire extinguishing operation is transmitted to the air-ground integrated cooperative command decision display unit through the comprehensive scheduling unit; an air-ground integrated cooperative command decision display unit formulates an air-ground integrated cooperative fire extinguishing task according to fire extinguishing facility information on the basis of a fire prediction situation map, and a data transmission downlink unit issues a control task instruction, so that the problem of a traditional forest fire extinguishing method is solved; the problems that fire extinguishing efficiency is high and casualties and property loss are increased due to the fact that the requirements for real-time monitoring of live broadcast pictures of a fire scene, real-time fire situation analysis and cooperative command of mechanisms at all levels, various devices, personnel and materials are difficult to meet in the prior art are solved.

The invention provides a UPS storage battery energy storage cabinet with a conveying function, and relates to the field of energy storage cabinets. The UPS storage battery energy storage cabinet with the conveying function comprises an outer box body, a battery pack, a supporting device with a function of automatically cutting off power supply when being impacted, and a protection device with a cooling protection function. According to the UPS storage battery energy storage cabinet with the conveying function, a battery pack is located on the inner side of the protection device during moving work, and when a battery and a protection box are subjected to transverse displacement in the battery pack due to shaking caused by impact, resistance is provided through an elastic protection spring and water in a cooling cavity to buffer shaking force and impact force borne by the battery pack; in addition, in the transportation state, the battery pack and the wiring terminal are disconnected, short circuit is prevented, the protection effect is further improved, when the battery pack is impacted in the working state, automatic power-off can be achieved, the effect of rapid cooling through cold water covering during combustion is achieved, and the use safety is improved.

The utility model relates to a mowing machine and a control handle, the mowing machine comprises a frame, a header, a power mechanism, a battery pack and the control handle, the header, the power mechanism, the battery pack and the control handle are arranged on the lower side of the frame, the header is connected to the frame, and the header comprises a cutting knife which rotates to generate a mowing effect on grassland; the power mechanism is connected to the frame and is in transmission connection with the first driving wheel and the second driving wheel; the battery pack is connected to the frame and used for supplying power to the header and the power mechanism; the control handle is used for being held by a user and can operate the power mechanism to rotate the driving wheel; when the section of the handle is observed in the extending direction of the control handle, the outer contour of the control handle is non-circular, and the outer contour of the section is in a closed shape formed by an arc line and a straight line which are connected end to end. The control handle is of the non-cylindrical structure with the straight section, the attaching degree of the handle and the palm of a user is increased, the holding comfort of the handle is improved, and the hand fatigue caused by the fact that the palm is not completely attached to the handle for a long time is reduced.

The embodiment of the invention relates to an equipment control method and device, computer equipment and a storage medium, and the method comprises the steps: obtaining an HID code and a scanning code corresponding to a first key when a triggering operation for the first key of a remote control device corresponding to the equipment is received, and the first key is a global key with a user-defined function; key functions corresponding to the HID codes and the scanning codes are determined from the mapping relation; and controlling the equipment according to the key function. Therefore, by configuring the global keys and the mapping relation between the HID code and the scan code of each global key and the key function, the corresponding key function can be determined through the mapping relation, a fixed key function code does not need to be set for each key, and the key function corresponding to the key can be rapidly determined by setting the mapping relation. The flexible configuration of the remote control keys and the diversity of controllable key functions of each key are realized.

The dual-piston high-pressure rapid and precise regulating device disclosed in the present invention belongs to the field of pressure calibration technology. The present invention includes a driving part, a high-pressure cylinder, a large piston, a small piston, a sealing assembly, a pipeline structure, a servo motor, a turbine reducer, a ball screw pair, and a pressure sensor. The present invention adopts a pressure regulating structure based on a dual piston, and uses the large and small pistons to act simultaneously to quickly adjust the pressure. The variable volume pressure control technology is adopted, while taking into account the actual use requirements of the pressure measurement and calibration equipment, and high-pressure pressure regulation is achieved based on the dual-piston structure, which solves the problem that the variable volume pressure control technology cannot take into account the pressure control speed and pressure control resolution at the same time during actual use. The large and small pistons act simultaneously to perform rapid pressure control, and then the pressure regulation effect of the small piston is used alone to accurately adjust the pressure, thereby realizing rapid control and precise regulation of any pressure point within the entire pressure range from low pressure to high pressure.

The invention relates to the technical field of intelligent PT cabinets, and provides an intelligent PT cabinet convenient to disassemble and assemble, which comprises a cabinet body, the cabinet body comprises a bus chamber, a handcart chamber, a control chamber and a cable chamber, the cable chamber is positioned at the bottom in the cabinet body, the handcart chamber is arranged above the cable chamber, the control chamber is positioned above the handcart chamber, and a partition plate is fixedly mounted in the cabinet body. A handcart body is arranged in the handcart chamber, the intelligent control module is fixedly installed in the control chamber, the sliding frame is arranged on the upper portion of the cable chamber in a sliding mode, the moving assembly is installed on the sliding frame, the positioning assembly is installed on the sliding frame, and the control assembly is installed on the control chamber. According to the technical scheme, the control assembly is installed on the sliding frame, the installation assembly is installed on the handcart body, and through the technical scheme, the problems that in the prior art, due to the fact that a PT handcart is inconvenient to assemble and disassemble, the maintenance process is difficult, and even equipment is damaged are solved.

The present invention discloses a brain-controlled grasping robot system and control method for visual semantic target stimulation, including an EEG signal acquisition unit, a visual induced unit, a signal processing unit, and a grasping robot body; the grasping robot body acquires the semantic target image and posture information of each object in the environment; and grasps the object according to the brain-controlled grasping intention; the visual induced unit flashes the visual induced paradigm based on the semantic target stimulation in a preset flashing mode; the EEG signal acquisition unit acquires the EEG signal induced by the visual induced paradigm of the disabled operator; the signal processing unit decodes the EEG signal to obtain the brain-controlled grasping intention, and sends it to the grasping robot body, and also uses the knowledge graph to infer the next step of the brain-controlled grasping intention of the disabled operator, and feeds back to the visual induced unit to generate a visual induced sub-paradigm. The intelligent decision-making and execution capabilities of the brain-controlled grasping robot for assisting the disabled are improved, and the disabled operator is helped to achieve basic self-care.

The present invention is applicable to the field of aerospace control technology, and provides a method for attitude magnetic tracking control in satellite orbit transfer, the method comprising: controlling the satellite attitude by three orthogonal magnetic torquers installed along the +X, +Y and +Z axis directions of the satellite; obtaining the expected angle during the satellite orbit transfer, and when the actual angle is close to the expected angle, compensating the torque generated by thrust with the torque generated by gravity; tracking control of the satellite attitude is performed by using a preset sliding mode control law based on an auxiliary compensator and taking the difference between the actual magnetic control torque and the ideal magnetic control torque as the input of the auxiliary compensator; the present invention uses the magnetic torquer as an attitude control actuator in the satellite orbit transfer, plans the expected angle during the satellite orbit transfer, and can compensate the torque generated by thrust with the torque generated by gravity when the actual angle is close to the target angle, thereby ensuring the stability of the satellite system and reducing the energy consumption of the magnetic torquer.

The present invention provides a pneumatically controlled high-pressure variable flow control valve, which mainly solves the technical problems of poor flow resistance stability, weak structural interchangeability, large action response dispersion, and disadvantageous mass production of existing variable flow control valves. The control valve of the present invention comprises a valve body, a main valve assembly and a secondary valve assembly arranged in the valve body; the main valve assembly is composed of 4 main valves with the same structure, and the secondary valve assembly is composed of 2 secondary valves with the same structure; the 4 main valves are perpendicular to the central axis of the valve body, and the 4 main valves are grouped in pairs, and the two main valves in each group are located in the same circumference of the valve body, and the central axes of the 4 main valves are located on the same plane or parallel to each other. There are 2 outlets on the valve body, and the medium outlets of the two main valves located on the coaxial side of the central axis of the valve body share the same outlet. The control valve of the present invention has a compact overall structure and a small volume, and the various components have strong interchangeability, which is suitable for mass production.

The application discloses a top-opening drum washing machine inner drum positioning method and a washing machine. The method comprises the following steps: after setting a washing program, the inner drum is controlled to rotate at a preset low speed; the rotation angle of the inner drum is collected and the deviation of the rotation angle from a target angle is calculated; the motor speed is controlled by PID closed-loop regulation with feedforward compensation based on the deviation, wherein the feedforward compensation amount is calculated according to the load weight, the speed fluctuation and / or the deviation change rate; when the deviation is less than a preset threshold, segmented braking is performed until the inner drum is locked at the target angle position; if the locking fails, the inner drum is reversely rotated to a preset angle, and the segmented braking is retried with corrected braking parameters. The application combines PID regulation with feedforward compensation and segmented braking, introduces a failure retry and parameter self-adaptive correction mechanism, and realizes high-precision, impact-free and high-reliability positioning of the inner drum.

The utility model discloses a high -pressure cleaning machine convenient to remove relates to high pressure cleaning utensil technical field, including frame, two cover plates are symmetrically hinged on the frame, and the one side of cover plate is equipped with the positioning bolt for closing, the handle is fixedly connected on the top side wall of frame, and the cleaning assembly is equipped on the bottom side wall of frame, and the connecting pipe is equipped on the top of cleaning assembly, two water tanks are placed symmetrically in the frame, and the connecting pipe is communicated to a water tank, and the communicating pipe is equipped between two water tanks, and the fixed device is equipped at the bottom of frame, the utility model discloses the setting of water spray pipe can improve the cleaning effect, make the ground after cleaning more clean and neat, through the setting of the placement seat, can make water spray pipe when not using orderly place, through the setting of fixed device, can fast, accurate control the position of stop block, make the cleaning machine between fixed and mobile state freely switch, solved the problem of traditional high -pressure cleaning machine manual fixed mode operation laborious, low efficiency, lead to inconvenient movement.

The utility model discloses a forest fire-fighting pump ship which comprises a ship body, a ship body and fire-fighting equipment on the ship body, the fire-fighting equipment comprises a fire-fighting vertical deep-well pump, slope structures are arranged on the two sides of the bottom of the ship body, a water pumping hole is formed in the ship body and penetrates through the upper face and the lower face of the ship body, and the fire-fighting vertical deep-well pump is arranged on the water pumping hole. A water inlet in the bottom of the fire-fighting vertical deep-well pump extends to the bottom of the water pumping hole through a water pipe, and a fire hydrant is further arranged at the top of the ship body and communicates with the water outlet end of the fire-fighting vertical deep-well pump through a water pipe. The forest fire pump ship has the water moving capability, and can quickly respond to a fire and quickly arrive at a water area fire scene. Compared with a traditional land fire-fighting vehicle, the land fire-fighting vehicle can shuttle in a water area more flexibly, fire extinguishing and rescue work can be carried out in a targeted mode, and the response speed and flexibility of a fire-fighting team to fire disasters are improved.

The application provides a capacitor parallel type controllable lightning arrester device, and relates to the technical field of lightning control, which comprises an outer box, two groups of connecting electrodes are fixedly arranged in the middle of the outer box, a lightning arrester group is arranged at the top of the connecting electrodes, and a capacitor is connected to the outside of the connecting electrodes; two groups of positioning templates are arranged, and the two groups of positioning templates are fixedly arranged on the two sides of the inside of the outer box; a slope clamping block is arranged, an automatic on-off control function is provided, the pressure in the hollow electrode strip is gradually increased through the mode of extruding gas, the lowermost air expansion rod is first entered into the lowermost partition support to support the slope clamping block, the slope clamping block is further adhered to the slope clamping block, the sliding contact block is moved, the sliding contact block moves to the positioning template, the sliding contact block is adhered to the spring contact point, the connecting electrode, the capacitor and the hollow electrode strip are connected, rapid control is realized, and the problem that the existing device cannot be gradually automatically connected through integrated unified power is solved.

The present disclosure relates to an electric vehicle on-board charger, a relay control method of the electric vehicle on-board charger, and an electric vehicle two-way charging system including the electric vehicle on-board charger, the electric vehicle on-board charger including: a vehicle port configured to be connected to an external charger, the external charger includes a first relay located on an internal first power supply path; a power converter; a second relay located on a second power supply path between the vehicle port and the power converter; and a controller configured to open the first relay and the second relay in response to triggering a vehicle-to-grid (V2G) protection operation based on the power-related parameter.

The invention relates to the field of bean curd production, and discloses a double-enzyme method whole-bean bean curd production method and an integrated device, and the method comprises the following steps: S1, soybean peeling treatment; s2, soybeans are crushed, and the crushed soybeans are put into a production integrated device to be roughly ground for the first time; s3, performing wet-process accurate grinding, namely grinding the crushed soybean-water mixture again, and circularly grinding for 3-5 times; s4, emulsifying and homogenizing by using a homogenizer, and boiling the soybean milk at high temperature; s5, filling the cooked soybean milk into a specified mold or box; s6, adding a plurality of enzymes for marinating, and packaging; s7, performing sterilization by a pasteurization method, and then performing thermal forming; s8, cooling and low-temperature storage are carried out, the grinding effect can be better, different materials are added in a matched mode, shaping is carried out in a box, a pressing block is not needed to extrude yellow serofluid and wrapping cloth, then sewage generation is avoided, microbial erosion is reduced, the shelf life is prolonged, and the whole bean curd is high in fiber, high in tenacity, smooth, tender and better in taste.

The invention belongs to the field of gearbox control, and particularly relates to a miniature integrated actuator which comprises a shell, a control element and a built-in actuator, the shell is an integrally-formed inverted-T-shaped installation body and comprises a control body and an execution body, the control element is installed on the control body of the shell, the built-in actuator is installed on the execution body of the shell, and a containing cavity is formed in the execution body. A containing cavity is formed in the shell, an actuating rod stretching back and forth is arranged in the containing cavity, the control element is communicated with the built-in actuator and controls the built-in actuator to act, the control element comprises a throttling valve, a pressure reducing valve and an electromagnetic reversing valve, the control body is provided with an oil port P and an oil port T, and the throttling valve and the pressure reducing valve are arranged between the oil port P and the built-in actuator and installed on the top of the shell. According to the miniature integrated actuator, the two electromagnetic valves and the two built-in actuators are jointly integrated through the precise shell, an internal oil duct is reasonable in design, and the miniature integrated actuator has the advantages of being compact in appearance, high in response speed, capable of automatically resetting in oil cut-off and power failure, low in oil way pressure loss, capable of reducing resistance and the like.

This utility model belongs to the technical field of vacuum control equipment, and in particular to a fast-response vacuum controller, including a vacuum controller housing, a vacuum controller body, a control panel, and a valve body mechanism. The vacuum controller body is disposed within the vacuum controller housing. A damping shaft is rotatably mounted on the control panel, and a strip block is radially fixedly mounted on the damping shaft. A storage groove is provided on the top side of the vacuum controller housing, and the strip block is mounted on the inner walls of the front and rear sides of the storage groove via damping hinges. The valve body mechanism is disposed within the vacuum controller housing and connected to the vacuum controller body. The valve body mechanism includes a mounting box, a U-shaped plate, two partitions, a guide and reset assembly, a transmission assembly, an electromagnet, and a magnetically made moving plate. This utility model has a reasonable design, can quickly respond to operation commands, improve execution efficiency, and optimize the operation interface to enhance ease of use and storage.

The utility model relates to performance detection equipment for asphalt concrete preparation, and belongs to the field of concrete performance detection, the performance detection equipment comprises a detection box, the inner walls of the left and right sides of the detection box are provided with temperature adjusting mechanisms for adjusting the temperature environment, and the inner wall of the detection box is provided with a detection mechanism for detecting the asphalt concrete preparation performance. According to the performance detection equipment for asphalt concrete preparation, temperature adjusting mechanisms are arranged, are located on the inner walls of the left side and the right side of the detection box and are used for adjusting the temperature environment so as to simulate the influence of different temperature conditions on asphalt concrete, and components such as a heating frame, a heat-resisting fan, an electric heating rod and a protection net work together; the temperature in the detection box is controlled through heating and wind power circulation, meanwhile, the draught fan can extract air in the box through the two exhaust pipes to be exhausted outwards along the air outlet pipe, then hot air is guided out to be used for reducing the temperature, and the temperature in the box can be effectively and rapidly controlled within the required range in cooperation with the heating frame.